diff --git a/corpus/expressions.txt b/corpus/expressions.txt
index 984d804..5def173 100644
--- a/corpus/expressions.txt
+++ b/corpus/expressions.txt
@@ -70,6 +70,23 @@ mult_args = my_fn(2, "test");
   (assignment_item (identifier) (call (identifier) (integer_literal)))
   (assignment_item (identifier) (call (identifier) (integer_literal) (string_literal))))
 
+================
+If-Then-Else
+================
+
+if_only = if b then i < j endif;
+value_select = if b then i else j endif;
+elseif = if b then i elseif c then j else k endif;
+elseif_no_else = if b then i < j elseif c then j > i endif;
+
+---
+
+(source_file
+  (assignment_item (identifier) (if_then_else (identifier) (binary_operation (identifier) (identifier))))
+  (assignment_item (identifier) (if_then_else (identifier) (identifier) (identifier)))
+  (assignment_item (identifier) (if_then_else (identifier) (identifier) (identifier) (identifier) (identifier)))
+  (assignment_item (identifier) (if_then_else (identifier) (binary_operation (identifier) (identifier)) (identifier) (binary_operation (identifier) (identifier)))))
+
 ================
 Index Expression
 ================
diff --git a/grammar.js b/grammar.js
index 297d724..e53b2b0 100644
--- a/grammar.js
+++ b/grammar.js
@@ -45,6 +45,7 @@ module.exports = grammar({
 
       $.binary_operation,
       $.call,
+      $.if_then_else,
       $.index_expression,
       $.unary_operation,
       // TODO: Other expression types
@@ -85,6 +86,14 @@ module.exports = grammar({
       ')',
     )),
 
+    if_then_else: $ => seq(
+      "if", $._expression,
+      "then", $._expression,
+      repeat(seq("elseif", $._expression, "then", $._expression)),
+      optional(seq("else", $._expression)),
+      "endif",
+    ),
+
     index_expression: $ => prec(PREC.call, seq(
       field('collection', $._expression),
       '[',
diff --git a/src/grammar.json b/src/grammar.json
index 3563da5..c74e2b3 100644
--- a/src/grammar.json
+++ b/src/grammar.json
@@ -93,6 +93,10 @@
           "type": "SYMBOL",
           "name": "call"
         },
+        {
+          "type": "SYMBOL",
+          "name": "if_then_else"
+        },
         {
           "type": "SYMBOL",
           "name": "index_expression"
@@ -745,6 +749,76 @@
         ]
       }
     },
+    "if_then_else": {
+      "type": "SEQ",
+      "members": [
+        {
+          "type": "STRING",
+          "value": "if"
+        },
+        {
+          "type": "SYMBOL",
+          "name": "_expression"
+        },
+        {
+          "type": "STRING",
+          "value": "then"
+        },
+        {
+          "type": "SYMBOL",
+          "name": "_expression"
+        },
+        {
+          "type": "REPEAT",
+          "content": {
+            "type": "SEQ",
+            "members": [
+              {
+                "type": "STRING",
+                "value": "elseif"
+              },
+              {
+                "type": "SYMBOL",
+                "name": "_expression"
+              },
+              {
+                "type": "STRING",
+                "value": "then"
+              },
+              {
+                "type": "SYMBOL",
+                "name": "_expression"
+              }
+            ]
+          }
+        },
+        {
+          "type": "CHOICE",
+          "members": [
+            {
+              "type": "SEQ",
+              "members": [
+                {
+                  "type": "STRING",
+                  "value": "else"
+                },
+                {
+                  "type": "SYMBOL",
+                  "name": "_expression"
+                }
+              ]
+            },
+            {
+              "type": "BLANK"
+            }
+          ]
+        },
+        {
+          "type": "STRING",
+          "value": "endif"
+        }
+      ]
+    },
     "index_expression": {
       "type": "PREC",
       "value": 15,
diff --git a/src/node-types.json b/src/node-types.json
index b958f7e..3f90c2f 100644
--- a/src/node-types.json
+++ b/src/node-types.json
@@ -35,6 +35,10 @@
           "type": "identifier",
           "named": true
         },
+        {
+          "type": "if_then_else",
+          "named": true
+        },
         {
           "type": "index_expression",
           "named": true
@@ -94,6 +98,10 @@
             "type": "identifier",
             "named": true
           },
+          {
+            "type": "if_then_else",
+            "named": true
+          },
           {
             "type": "index_expression",
             "named": true
@@ -164,6 +172,10 @@
             "type": "identifier",
             "named": true
           },
+          {
+            "type": "if_then_else",
+            "named": true
+          },
           {
             "type": "index_expression",
             "named": true
@@ -344,6 +356,10 @@
             "type": "identifier",
             "named": true
           },
+          {
+            "type": "if_then_else",
+            "named": true
+          },
           {
             "type": "index_expression",
             "named": true
@@ -413,6 +429,10 @@
             "type": "identifier",
             "named": true
           },
+          {
+            "type": "if_then_else",
+            "named": true
+          },
           {
             "type": "index_expression",
             "named": true
@@ -447,6 +467,69 @@
       }
     }
   },
+  {
+    "type": "if_then_else",
+    "named": true,
+    "fields": {},
+    "children": {
+      "multiple": true,
+      "required": true,
+      "types": [
+        {
+          "type": "absent",
+          "named": true
+        },
+        {
+          "type": "array_literal",
+          "named": true
+        },
+        {
+          "type": "binary_operation",
+          "named": true
+        },
+        {
+          "type": "boolean_literal",
+          "named": true
+        },
+        {
+          "type": "call",
+          "named": true
+        },
+        {
+          "type": "float_literal",
+          "named": true
+        },
+        {
+          "type": "identifier",
+          "named": true
+        },
+        {
+          "type": "if_then_else",
+          "named": true
+        },
+        {
+          "type": "index_expression",
+          "named": true
+        },
+        {
+          "type": "integer_literal",
+          "named": true
+        },
+        {
+          "type": "set_literal",
+          "named": true
+        },
+        {
+          "type": "string_literal",
+          "named": true
+        },
+        {
+          "type": "unary_operation",
+          "named": true
+        }
+      ]
+    }
+  },
   {
     "type": "index_expression",
     "named": true,
@@ -483,6 +566,10 @@
             "type": "identifier",
             "named": true
           },
+          {
+            "type": "if_then_else",
+            "named": true
+          },
           {
             "type": "index_expression",
             "named": true
@@ -541,6 +628,10 @@
             "type": "identifier",
             "named": true
           },
+          {
+            "type": "if_then_else",
+            "named": true
+          },
           {
             "type": "index_expression",
             "named": true
@@ -601,6 +692,10 @@
           "type": "identifier",
           "named": true
         },
+        {
+          "type": "if_then_else",
+          "named": true
+        },
         {
           "type": "index_expression",
           "named": true
@@ -709,6 +804,10 @@
           "type": "identifier",
           "named": true
         },
+        {
+          "type": "if_then_else",
+          "named": true
+        },
         {
           "type": "index_expression",
           "named": true
@@ -852,6 +951,18 @@
     "type": "div",
     "named": false
   },
+  {
+    "type": "else",
+    "named": false
+  },
+  {
+    "type": "elseif",
+    "named": false
+  },
+  {
+    "type": "endif",
+    "named": false
+  },
   {
     "type": "escape_sequence",
     "named": true
@@ -868,6 +979,10 @@
     "type": "identifier",
     "named": true
   },
+  {
+    "type": "if",
+    "named": false
+  },
   {
     "type": "in",
     "named": false
@@ -900,6 +1015,10 @@
     "type": "symdiff",
     "named": false
   },
+  {
+    "type": "then",
+    "named": false
+  },
   {
     "type": "true",
     "named": false
diff --git a/src/parser.c b/src/parser.c
index d34c247..8d8ba6c 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -6,14 +6,14 @@
 #endif
 
 #define LANGUAGE_VERSION 11
-#define STATE_COUNT 79
-#define LARGE_STATE_COUNT 40
-#define SYMBOL_COUNT 69
+#define STATE_COUNT 97
+#define LARGE_STATE_COUNT 35
+#define SYMBOL_COUNT 76
 #define ALIAS_COUNT 0
-#define TOKEN_COUNT 52
+#define TOKEN_COUNT 57
 #define EXTERNAL_TOKEN_COUNT 0
 #define FIELD_COUNT 8
-#define MAX_ALIAS_SEQUENCE_LENGTH 5
+#define MAX_ALIAS_SEQUENCE_LENGTH 8
 
 enum {
   sym_identifier = 1,
@@ -51,39 +51,46 @@ enum {
   anon_sym_LPAREN = 33,
   anon_sym_COMMA = 34,
   anon_sym_RPAREN = 35,
-  anon_sym_LBRACK = 36,
-  anon_sym_RBRACK = 37,
-  anon_sym_not = 38,
-  anon_sym_ = 39,
-  sym_absent = 40,
-  anon_sym_true = 41,
-  anon_sym_false = 42,
-  sym_float_literal = 43,
-  sym_integer_literal = 44,
-  anon_sym_LBRACE = 45,
-  anon_sym_RBRACE = 46,
-  anon_sym_DQUOTE = 47,
-  aux_sym_string_literal_token1 = 48,
-  sym_escape_sequence = 49,
-  sym_line_comment = 50,
-  sym_block_comment = 51,
-  sym_source_file = 52,
-  sym__items = 53,
-  sym_assignment_item = 54,
-  sym__expression = 55,
-  sym_binary_operation = 56,
-  sym_call = 57,
-  sym_index_expression = 58,
-  sym_unary_operation = 59,
-  sym__literal = 60,
-  sym_array_literal = 61,
-  sym_boolean_literal = 62,
-  sym_set_literal = 63,
-  sym_string_literal = 64,
-  aux_sym_source_file_repeat1 = 65,
-  aux_sym_call_repeat1 = 66,
-  aux_sym_index_expression_repeat1 = 67,
-  aux_sym_string_literal_repeat1 = 68,
+  anon_sym_if = 36,
+  anon_sym_then = 37,
+  anon_sym_elseif = 38,
+  anon_sym_else = 39,
+  anon_sym_endif = 40,
+  anon_sym_LBRACK = 41,
+  anon_sym_RBRACK = 42,
+  anon_sym_not = 43,
+  anon_sym_ = 44,
+  sym_absent = 45,
+  anon_sym_true = 46,
+  anon_sym_false = 47,
+  sym_float_literal = 48,
+  sym_integer_literal = 49,
+  anon_sym_LBRACE = 50,
+  anon_sym_RBRACE = 51,
+  anon_sym_DQUOTE = 52,
+  aux_sym_string_literal_token1 = 53,
+  sym_escape_sequence = 54,
+  sym_line_comment = 55,
+  sym_block_comment = 56,
+  sym_source_file = 57,
+  sym__items = 58,
+  sym_assignment_item = 59,
+  sym__expression = 60,
+  sym_binary_operation = 61,
+  sym_call = 62,
+  sym_if_then_else = 63,
+  sym_index_expression = 64,
+  sym_unary_operation = 65,
+  sym__literal = 66,
+  sym_array_literal = 67,
+  sym_boolean_literal = 68,
+  sym_set_literal = 69,
+  sym_string_literal = 70,
+  aux_sym_source_file_repeat1 = 71,
+  aux_sym_call_repeat1 = 72,
+  aux_sym_if_then_else_repeat1 = 73,
+  aux_sym_index_expression_repeat1 = 74,
+  aux_sym_string_literal_repeat1 = 75,
 };
 
 static const char *ts_symbol_names[] = {
@@ -123,6 +130,11 @@ static const char *ts_symbol_names[] = {
   [anon_sym_LPAREN] = "(",
   [anon_sym_COMMA] = ",",
   [anon_sym_RPAREN] = ")",
+  [anon_sym_if] = "if",
+  [anon_sym_then] = "then",
+  [anon_sym_elseif] = "elseif",
+  [anon_sym_else] = "else",
+  [anon_sym_endif] = "endif",
   [anon_sym_LBRACK] = "[",
   [anon_sym_RBRACK] = "]",
   [anon_sym_not] = "not",
@@ -145,6 +157,7 @@ static const char *ts_symbol_names[] = {
   [sym__expression] = "_expression",
   [sym_binary_operation] = "binary_operation",
   [sym_call] = "call",
+  [sym_if_then_else] = "if_then_else",
   [sym_index_expression] = "index_expression",
   [sym_unary_operation] = "unary_operation",
   [sym__literal] = "_literal",
@@ -154,6 +167,7 @@ static const char *ts_symbol_names[] = {
   [sym_string_literal] = "string_literal",
   [aux_sym_source_file_repeat1] = "source_file_repeat1",
   [aux_sym_call_repeat1] = "call_repeat1",
+  [aux_sym_if_then_else_repeat1] = "if_then_else_repeat1",
   [aux_sym_index_expression_repeat1] = "index_expression_repeat1",
   [aux_sym_string_literal_repeat1] = "string_literal_repeat1",
 };
@@ -195,6 +209,11 @@ static TSSymbol ts_symbol_map[] = {
   [anon_sym_LPAREN] = anon_sym_LPAREN,
   [anon_sym_COMMA] = anon_sym_COMMA,
   [anon_sym_RPAREN] = anon_sym_RPAREN,
+  [anon_sym_if] = anon_sym_if,
+  [anon_sym_then] = anon_sym_then,
+  [anon_sym_elseif] = anon_sym_elseif,
+  [anon_sym_else] = anon_sym_else,
+  [anon_sym_endif] = anon_sym_endif,
   [anon_sym_LBRACK] = anon_sym_LBRACK,
   [anon_sym_RBRACK] = anon_sym_RBRACK,
   [anon_sym_not] = anon_sym_not,
@@ -217,6 +236,7 @@ static TSSymbol ts_symbol_map[] = {
   [sym__expression] = sym__expression,
   [sym_binary_operation] = sym_binary_operation,
   [sym_call] = sym_call,
+  [sym_if_then_else] = sym_if_then_else,
   [sym_index_expression] = sym_index_expression,
   [sym_unary_operation] = sym_unary_operation,
   [sym__literal] = sym__literal,
@@ -226,6 +246,7 @@ static TSSymbol ts_symbol_map[] = {
   [sym_string_literal] = sym_string_literal,
   [aux_sym_source_file_repeat1] = aux_sym_source_file_repeat1,
   [aux_sym_call_repeat1] = aux_sym_call_repeat1,
+  [aux_sym_if_then_else_repeat1] = aux_sym_if_then_else_repeat1,
   [aux_sym_index_expression_repeat1] = aux_sym_index_expression_repeat1,
   [aux_sym_string_literal_repeat1] = aux_sym_string_literal_repeat1,
 };
@@ -375,6 +396,26 @@ static const TSSymbolMetadata ts_symbol_metadata[] = {
     .visible = true,
     .named = false,
   },
+  [anon_sym_if] = {
+    .visible = true,
+    .named = false,
+  },
+  [anon_sym_then] = {
+    .visible = true,
+    .named = false,
+  },
+  [anon_sym_elseif] = {
+    .visible = true,
+    .named = false,
+  },
+  [anon_sym_else] = {
+    .visible = true,
+    .named = false,
+  },
+  [anon_sym_endif] = {
+    .visible = true,
+    .named = false,
+  },
   [anon_sym_LBRACK] = {
     .visible = true,
     .named = false,
@@ -463,6 +504,10 @@ static const TSSymbolMetadata ts_symbol_metadata[] = {
     .visible = true,
     .named = true,
   },
+  [sym_if_then_else] = {
+    .visible = true,
+    .named = true,
+  },
   [sym_index_expression] = {
     .visible = true,
     .named = true,
@@ -499,6 +544,10 @@ static const TSSymbolMetadata ts_symbol_metadata[] = {
     .visible = false,
     .named = false,
   },
+  [aux_sym_if_then_else_repeat1] = {
+    .visible = false,
+    .named = false,
+  },
   [aux_sym_index_expression_repeat1] = {
     .visible = false,
     .named = false,
@@ -1082,186 +1131,233 @@ static bool ts_lex_keywords(TSLexer *lexer, TSStateId state) {
   switch (state) {
     case 0:
       if (lookahead == 'd') ADVANCE(1);
-      if (lookahead == 'f') ADVANCE(2);
-      if (lookahead == 'i') ADVANCE(3);
-      if (lookahead == 'm') ADVANCE(4);
-      if (lookahead == 'n') ADVANCE(5);
-      if (lookahead == 's') ADVANCE(6);
-      if (lookahead == 't') ADVANCE(7);
-      if (lookahead == 'u') ADVANCE(8);
-      if (lookahead == 'x') ADVANCE(9);
+      if (lookahead == 'e') ADVANCE(2);
+      if (lookahead == 'f') ADVANCE(3);
+      if (lookahead == 'i') ADVANCE(4);
+      if (lookahead == 'm') ADVANCE(5);
+      if (lookahead == 'n') ADVANCE(6);
+      if (lookahead == 's') ADVANCE(7);
+      if (lookahead == 't') ADVANCE(8);
+      if (lookahead == 'u') ADVANCE(9);
+      if (lookahead == 'x') ADVANCE(10);
       if (lookahead == '\t' ||
           lookahead == '\n' ||
           lookahead == '\r' ||
           lookahead == ' ') SKIP(0)
       END_STATE();
     case 1:
-      if (lookahead == 'i') ADVANCE(10);
+      if (lookahead == 'i') ADVANCE(11);
       END_STATE();
     case 2:
-      if (lookahead == 'a') ADVANCE(11);
+      if (lookahead == 'l') ADVANCE(12);
+      if (lookahead == 'n') ADVANCE(13);
       END_STATE();
     case 3:
-      if (lookahead == 'n') ADVANCE(12);
+      if (lookahead == 'a') ADVANCE(14);
       END_STATE();
     case 4:
-      if (lookahead == 'o') ADVANCE(13);
+      if (lookahead == 'f') ADVANCE(15);
+      if (lookahead == 'n') ADVANCE(16);
       END_STATE();
     case 5:
-      if (lookahead == 'o') ADVANCE(14);
+      if (lookahead == 'o') ADVANCE(17);
       END_STATE();
     case 6:
-      if (lookahead == 'u') ADVANCE(15);
-      if (lookahead == 'y') ADVANCE(16);
+      if (lookahead == 'o') ADVANCE(18);
       END_STATE();
     case 7:
-      if (lookahead == 'r') ADVANCE(17);
+      if (lookahead == 'u') ADVANCE(19);
+      if (lookahead == 'y') ADVANCE(20);
       END_STATE();
     case 8:
-      if (lookahead == 'n') ADVANCE(18);
+      if (lookahead == 'h') ADVANCE(21);
+      if (lookahead == 'r') ADVANCE(22);
       END_STATE();
     case 9:
-      if (lookahead == 'o') ADVANCE(19);
+      if (lookahead == 'n') ADVANCE(23);
       END_STATE();
     case 10:
-      if (lookahead == 'f') ADVANCE(20);
-      if (lookahead == 'v') ADVANCE(21);
+      if (lookahead == 'o') ADVANCE(24);
       END_STATE();
     case 11:
-      if (lookahead == 'l') ADVANCE(22);
+      if (lookahead == 'f') ADVANCE(25);
+      if (lookahead == 'v') ADVANCE(26);
       END_STATE();
     case 12:
-      ACCEPT_TOKEN(anon_sym_in);
-      if (lookahead == 't') ADVANCE(23);
+      if (lookahead == 's') ADVANCE(27);
       END_STATE();
     case 13:
-      if (lookahead == 'd') ADVANCE(24);
+      if (lookahead == 'd') ADVANCE(28);
       END_STATE();
     case 14:
-      if (lookahead == 't') ADVANCE(25);
+      if (lookahead == 'l') ADVANCE(29);
       END_STATE();
     case 15:
-      if (lookahead == 'b') ADVANCE(26);
-      if (lookahead == 'p') ADVANCE(27);
+      ACCEPT_TOKEN(anon_sym_if);
       END_STATE();
     case 16:
-      if (lookahead == 'm') ADVANCE(28);
+      ACCEPT_TOKEN(anon_sym_in);
+      if (lookahead == 't') ADVANCE(30);
       END_STATE();
     case 17:
-      if (lookahead == 'u') ADVANCE(29);
+      if (lookahead == 'd') ADVANCE(31);
       END_STATE();
     case 18:
-      if (lookahead == 'i') ADVANCE(30);
+      if (lookahead == 't') ADVANCE(32);
       END_STATE();
     case 19:
-      if (lookahead == 'r') ADVANCE(31);
+      if (lookahead == 'b') ADVANCE(33);
+      if (lookahead == 'p') ADVANCE(34);
       END_STATE();
     case 20:
-      if (lookahead == 'f') ADVANCE(32);
+      if (lookahead == 'm') ADVANCE(35);
       END_STATE();
     case 21:
-      ACCEPT_TOKEN(anon_sym_div);
-      END_STATE();
-    case 22:
-      if (lookahead == 's') ADVANCE(33);
-      END_STATE();
-    case 23:
-      if (lookahead == 'e') ADVANCE(34);
-      END_STATE();
-    case 24:
-      ACCEPT_TOKEN(anon_sym_mod);
-      END_STATE();
-    case 25:
-      ACCEPT_TOKEN(anon_sym_not);
-      END_STATE();
-    case 26:
-      if (lookahead == 's') ADVANCE(35);
-      END_STATE();
-    case 27:
       if (lookahead == 'e') ADVANCE(36);
       END_STATE();
+    case 22:
+      if (lookahead == 'u') ADVANCE(37);
+      END_STATE();
+    case 23:
+      if (lookahead == 'i') ADVANCE(38);
+      END_STATE();
+    case 24:
+      if (lookahead == 'r') ADVANCE(39);
+      END_STATE();
+    case 25:
+      if (lookahead == 'f') ADVANCE(40);
+      END_STATE();
+    case 26:
+      ACCEPT_TOKEN(anon_sym_div);
+      END_STATE();
+    case 27:
+      if (lookahead == 'e') ADVANCE(41);
+      END_STATE();
     case 28:
-      if (lookahead == 'd') ADVANCE(37);
+      if (lookahead == 'i') ADVANCE(42);
       END_STATE();
     case 29:
-      if (lookahead == 'e') ADVANCE(38);
+      if (lookahead == 's') ADVANCE(43);
       END_STATE();
     case 30:
-      if (lookahead == 'o') ADVANCE(39);
+      if (lookahead == 'e') ADVANCE(44);
       END_STATE();
     case 31:
-      ACCEPT_TOKEN(anon_sym_xor);
+      ACCEPT_TOKEN(anon_sym_mod);
       END_STATE();
     case 32:
-      ACCEPT_TOKEN(anon_sym_diff);
+      ACCEPT_TOKEN(anon_sym_not);
       END_STATE();
     case 33:
-      if (lookahead == 'e') ADVANCE(40);
+      if (lookahead == 's') ADVANCE(45);
       END_STATE();
     case 34:
-      if (lookahead == 'r') ADVANCE(41);
+      if (lookahead == 'e') ADVANCE(46);
       END_STATE();
     case 35:
-      if (lookahead == 'e') ADVANCE(42);
+      if (lookahead == 'd') ADVANCE(47);
       END_STATE();
     case 36:
-      if (lookahead == 'r') ADVANCE(43);
+      if (lookahead == 'n') ADVANCE(48);
       END_STATE();
     case 37:
-      if (lookahead == 'i') ADVANCE(44);
+      if (lookahead == 'e') ADVANCE(49);
       END_STATE();
     case 38:
-      ACCEPT_TOKEN(anon_sym_true);
+      if (lookahead == 'o') ADVANCE(50);
       END_STATE();
     case 39:
-      if (lookahead == 'n') ADVANCE(45);
+      ACCEPT_TOKEN(anon_sym_xor);
       END_STATE();
     case 40:
-      ACCEPT_TOKEN(anon_sym_false);
+      ACCEPT_TOKEN(anon_sym_diff);
       END_STATE();
     case 41:
-      if (lookahead == 's') ADVANCE(46);
+      ACCEPT_TOKEN(anon_sym_else);
+      if (lookahead == 'i') ADVANCE(51);
       END_STATE();
     case 42:
-      if (lookahead == 't') ADVANCE(47);
-      END_STATE();
-    case 43:
-      if (lookahead == 's') ADVANCE(48);
-      END_STATE();
-    case 44:
-      if (lookahead == 'f') ADVANCE(49);
-      END_STATE();
-    case 45:
-      ACCEPT_TOKEN(anon_sym_union);
-      END_STATE();
-    case 46:
-      if (lookahead == 'e') ADVANCE(50);
-      END_STATE();
-    case 47:
-      ACCEPT_TOKEN(anon_sym_subset);
-      END_STATE();
-    case 48:
-      if (lookahead == 'e') ADVANCE(51);
-      END_STATE();
-    case 49:
       if (lookahead == 'f') ADVANCE(52);
       END_STATE();
+    case 43:
+      if (lookahead == 'e') ADVANCE(53);
+      END_STATE();
+    case 44:
+      if (lookahead == 'r') ADVANCE(54);
+      END_STATE();
+    case 45:
+      if (lookahead == 'e') ADVANCE(55);
+      END_STATE();
+    case 46:
+      if (lookahead == 'r') ADVANCE(56);
+      END_STATE();
+    case 47:
+      if (lookahead == 'i') ADVANCE(57);
+      END_STATE();
+    case 48:
+      ACCEPT_TOKEN(anon_sym_then);
+      END_STATE();
+    case 49:
+      ACCEPT_TOKEN(anon_sym_true);
+      END_STATE();
     case 50:
-      if (lookahead == 'c') ADVANCE(53);
+      if (lookahead == 'n') ADVANCE(58);
       END_STATE();
     case 51:
-      if (lookahead == 't') ADVANCE(54);
+      if (lookahead == 'f') ADVANCE(59);
       END_STATE();
     case 52:
-      ACCEPT_TOKEN(anon_sym_symdiff);
+      ACCEPT_TOKEN(anon_sym_endif);
       END_STATE();
     case 53:
-      if (lookahead == 't') ADVANCE(55);
+      ACCEPT_TOKEN(anon_sym_false);
       END_STATE();
     case 54:
-      ACCEPT_TOKEN(anon_sym_superset);
+      if (lookahead == 's') ADVANCE(60);
       END_STATE();
     case 55:
+      if (lookahead == 't') ADVANCE(61);
+      END_STATE();
+    case 56:
+      if (lookahead == 's') ADVANCE(62);
+      END_STATE();
+    case 57:
+      if (lookahead == 'f') ADVANCE(63);
+      END_STATE();
+    case 58:
+      ACCEPT_TOKEN(anon_sym_union);
+      END_STATE();
+    case 59:
+      ACCEPT_TOKEN(anon_sym_elseif);
+      END_STATE();
+    case 60:
+      if (lookahead == 'e') ADVANCE(64);
+      END_STATE();
+    case 61:
+      ACCEPT_TOKEN(anon_sym_subset);
+      END_STATE();
+    case 62:
+      if (lookahead == 'e') ADVANCE(65);
+      END_STATE();
+    case 63:
+      if (lookahead == 'f') ADVANCE(66);
+      END_STATE();
+    case 64:
+      if (lookahead == 'c') ADVANCE(67);
+      END_STATE();
+    case 65:
+      if (lookahead == 't') ADVANCE(68);
+      END_STATE();
+    case 66:
+      ACCEPT_TOKEN(anon_sym_symdiff);
+      END_STATE();
+    case 67:
+      if (lookahead == 't') ADVANCE(69);
+      END_STATE();
+    case 68:
+      ACCEPT_TOKEN(anon_sym_superset);
+      END_STATE();
+    case 69:
       ACCEPT_TOKEN(anon_sym_intersect);
       END_STATE();
     default:
@@ -1311,16 +1407,16 @@ static TSLexMode ts_lex_modes[STATE_COUNT] = {
   [38] = {.lex_state = 30},
   [39] = {.lex_state = 30},
   [40] = {.lex_state = 30},
-  [41] = {.lex_state = 2},
-  [42] = {.lex_state = 2},
-  [43] = {.lex_state = 2},
-  [44] = {.lex_state = 2},
-  [45] = {.lex_state = 2},
-  [46] = {.lex_state = 2},
-  [47] = {.lex_state = 2},
-  [48] = {.lex_state = 2},
-  [49] = {.lex_state = 2},
-  [50] = {.lex_state = 2},
+  [41] = {.lex_state = 30},
+  [42] = {.lex_state = 30},
+  [43] = {.lex_state = 30},
+  [44] = {.lex_state = 30},
+  [45] = {.lex_state = 30},
+  [46] = {.lex_state = 30},
+  [47] = {.lex_state = 30},
+  [48] = {.lex_state = 30},
+  [49] = {.lex_state = 30},
+  [50] = {.lex_state = 30},
   [51] = {.lex_state = 2},
   [52] = {.lex_state = 2},
   [53] = {.lex_state = 2},
@@ -1336,19 +1432,37 @@ static TSLexMode ts_lex_modes[STATE_COUNT] = {
   [63] = {.lex_state = 2},
   [64] = {.lex_state = 2},
   [65] = {.lex_state = 2},
-  [66] = {.lex_state = 0},
-  [67] = {.lex_state = 0},
-  [68] = {.lex_state = 1},
-  [69] = {.lex_state = 1},
-  [70] = {.lex_state = 1},
-  [71] = {.lex_state = 0},
-  [72] = {.lex_state = 0},
-  [73] = {.lex_state = 0},
-  [74] = {.lex_state = 0},
-  [75] = {.lex_state = 0},
-  [76] = {.lex_state = 0},
-  [77] = {.lex_state = 0},
-  [78] = {.lex_state = 0},
+  [66] = {.lex_state = 2},
+  [67] = {.lex_state = 2},
+  [68] = {.lex_state = 2},
+  [69] = {.lex_state = 2},
+  [70] = {.lex_state = 2},
+  [71] = {.lex_state = 2},
+  [72] = {.lex_state = 2},
+  [73] = {.lex_state = 2},
+  [74] = {.lex_state = 2},
+  [75] = {.lex_state = 2},
+  [76] = {.lex_state = 2},
+  [77] = {.lex_state = 2},
+  [78] = {.lex_state = 2},
+  [79] = {.lex_state = 2},
+  [80] = {.lex_state = 2},
+  [81] = {.lex_state = 2},
+  [82] = {.lex_state = 0},
+  [83] = {.lex_state = 0},
+  [84] = {.lex_state = 0},
+  [85] = {.lex_state = 1},
+  [86] = {.lex_state = 0},
+  [87] = {.lex_state = 1},
+  [88] = {.lex_state = 1},
+  [89] = {.lex_state = 0},
+  [90] = {.lex_state = 0},
+  [91] = {.lex_state = 0},
+  [92] = {.lex_state = 0},
+  [93] = {.lex_state = 0},
+  [94] = {.lex_state = 0},
+  [95] = {.lex_state = 0},
+  [96] = {.lex_state = 0},
 };
 
 static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
@@ -1389,6 +1503,11 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_LPAREN] = ACTIONS(1),
     [anon_sym_COMMA] = ACTIONS(1),
     [anon_sym_RPAREN] = ACTIONS(1),
+    [anon_sym_if] = ACTIONS(1),
+    [anon_sym_then] = ACTIONS(1),
+    [anon_sym_elseif] = ACTIONS(1),
+    [anon_sym_else] = ACTIONS(1),
+    [anon_sym_endif] = ACTIONS(1),
     [anon_sym_LBRACK] = ACTIONS(1),
     [anon_sym_RBRACK] = ACTIONS(1),
     [anon_sym_not] = ACTIONS(1),
@@ -1406,10 +1525,10 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [sym_block_comment] = ACTIONS(3),
   },
   [1] = {
-    [sym_source_file] = STATE(78),
-    [sym__items] = STATE(75),
-    [sym_assignment_item] = STATE(75),
-    [aux_sym_source_file_repeat1] = STATE(67),
+    [sym_source_file] = STATE(96),
+    [sym__items] = STATE(93),
+    [sym_assignment_item] = STATE(93),
+    [aux_sym_source_file_repeat1] = STATE(83),
     [ts_builtin_sym_end] = ACTIONS(5),
     [sym_identifier] = ACTIONS(7),
     [sym_line_comment] = ACTIONS(3),
@@ -1451,6 +1570,10 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_LPAREN] = ACTIONS(13),
     [anon_sym_COMMA] = ACTIONS(9),
     [anon_sym_RPAREN] = ACTIONS(9),
+    [anon_sym_then] = ACTIONS(9),
+    [anon_sym_elseif] = ACTIONS(9),
+    [anon_sym_else] = ACTIONS(11),
+    [anon_sym_endif] = ACTIONS(9),
     [anon_sym_LBRACK] = ACTIONS(9),
     [anon_sym_RBRACK] = ACTIONS(9),
     [anon_sym_RBRACE] = ACTIONS(9),
@@ -1477,22 +1600,26 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_subset] = ACTIONS(15),
     [anon_sym_superset] = ACTIONS(15),
     [anon_sym_union] = ACTIONS(15),
-    [anon_sym_diff] = ACTIONS(19),
-    [anon_sym_symdiff] = ACTIONS(21),
-    [anon_sym_intersect] = ACTIONS(23),
-    [anon_sym_DOT_DOT] = ACTIONS(25),
-    [anon_sym_PLUS] = ACTIONS(27),
-    [anon_sym_DASH] = ACTIONS(27),
-    [anon_sym_PLUS_PLUS] = ACTIONS(29),
-    [anon_sym_STAR] = ACTIONS(31),
-    [anon_sym_SLASH] = ACTIONS(33),
-    [anon_sym_div] = ACTIONS(31),
-    [anon_sym_mod] = ACTIONS(31),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
+    [anon_sym_diff] = ACTIONS(15),
+    [anon_sym_symdiff] = ACTIONS(15),
+    [anon_sym_intersect] = ACTIONS(15),
+    [anon_sym_DOT_DOT] = ACTIONS(15),
+    [anon_sym_PLUS] = ACTIONS(17),
+    [anon_sym_DASH] = ACTIONS(17),
+    [anon_sym_PLUS_PLUS] = ACTIONS(15),
+    [anon_sym_STAR] = ACTIONS(15),
+    [anon_sym_SLASH] = ACTIONS(17),
+    [anon_sym_div] = ACTIONS(15),
+    [anon_sym_mod] = ACTIONS(15),
+    [anon_sym_CARET] = ACTIONS(15),
+    [anon_sym_COLON_COLON] = ACTIONS(19),
     [anon_sym_COMMA] = ACTIONS(15),
     [anon_sym_RPAREN] = ACTIONS(15),
-    [anon_sym_LBRACK] = ACTIONS(39),
+    [anon_sym_then] = ACTIONS(15),
+    [anon_sym_elseif] = ACTIONS(15),
+    [anon_sym_else] = ACTIONS(17),
+    [anon_sym_endif] = ACTIONS(15),
+    [anon_sym_LBRACK] = ACTIONS(21),
     [anon_sym_RBRACK] = ACTIONS(15),
     [anon_sym_RBRACE] = ACTIONS(15),
     [sym_line_comment] = ACTIONS(3),
@@ -1530,16 +1657,65 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_div] = ACTIONS(31),
     [anon_sym_mod] = ACTIONS(31),
     [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
+    [anon_sym_COLON_COLON] = ACTIONS(19),
     [anon_sym_COMMA] = ACTIONS(15),
     [anon_sym_RPAREN] = ACTIONS(15),
-    [anon_sym_LBRACK] = ACTIONS(39),
+    [anon_sym_then] = ACTIONS(15),
+    [anon_sym_elseif] = ACTIONS(15),
+    [anon_sym_else] = ACTIONS(17),
+    [anon_sym_endif] = ACTIONS(15),
+    [anon_sym_LBRACK] = ACTIONS(21),
     [anon_sym_RBRACK] = ACTIONS(15),
     [anon_sym_RBRACE] = ACTIONS(15),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
   [5] = {
+    [ts_builtin_sym_end] = ACTIONS(37),
+    [anon_sym_SEMI] = ACTIONS(37),
+    [anon_sym_EQ] = ACTIONS(39),
+    [anon_sym_LT_DASH_GT] = ACTIONS(37),
+    [anon_sym_DASH_GT] = ACTIONS(37),
+    [anon_sym_LT_DASH] = ACTIONS(39),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(37),
+    [anon_sym_xor] = ACTIONS(37),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(37),
+    [anon_sym_EQ_EQ] = ACTIONS(37),
+    [anon_sym_BANG_EQ] = ACTIONS(37),
+    [anon_sym_LT] = ACTIONS(39),
+    [anon_sym_LT_EQ] = ACTIONS(37),
+    [anon_sym_GT] = ACTIONS(39),
+    [anon_sym_GT_EQ] = ACTIONS(37),
+    [anon_sym_in] = ACTIONS(39),
+    [anon_sym_subset] = ACTIONS(37),
+    [anon_sym_superset] = ACTIONS(37),
+    [anon_sym_union] = ACTIONS(37),
+    [anon_sym_diff] = ACTIONS(37),
+    [anon_sym_symdiff] = ACTIONS(37),
+    [anon_sym_intersect] = ACTIONS(37),
+    [anon_sym_DOT_DOT] = ACTIONS(37),
+    [anon_sym_PLUS] = ACTIONS(39),
+    [anon_sym_DASH] = ACTIONS(39),
+    [anon_sym_PLUS_PLUS] = ACTIONS(37),
+    [anon_sym_STAR] = ACTIONS(37),
+    [anon_sym_SLASH] = ACTIONS(39),
+    [anon_sym_div] = ACTIONS(37),
+    [anon_sym_mod] = ACTIONS(37),
+    [anon_sym_CARET] = ACTIONS(37),
+    [anon_sym_COLON_COLON] = ACTIONS(37),
+    [anon_sym_COMMA] = ACTIONS(37),
+    [anon_sym_RPAREN] = ACTIONS(37),
+    [anon_sym_then] = ACTIONS(37),
+    [anon_sym_elseif] = ACTIONS(37),
+    [anon_sym_else] = ACTIONS(39),
+    [anon_sym_endif] = ACTIONS(37),
+    [anon_sym_LBRACK] = ACTIONS(37),
+    [anon_sym_RBRACK] = ACTIONS(37),
+    [anon_sym_RBRACE] = ACTIONS(37),
+    [sym_line_comment] = ACTIONS(3),
+    [sym_block_comment] = ACTIONS(3),
+  },
+  [6] = {
     [ts_builtin_sym_end] = ACTIONS(41),
     [anon_sym_SEMI] = ACTIONS(41),
     [anon_sym_EQ] = ACTIONS(43),
@@ -1571,16 +1747,20 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_div] = ACTIONS(41),
     [anon_sym_mod] = ACTIONS(41),
     [anon_sym_CARET] = ACTIONS(41),
-    [anon_sym_COLON_COLON] = ACTIONS(41),
+    [anon_sym_COLON_COLON] = ACTIONS(19),
     [anon_sym_COMMA] = ACTIONS(41),
     [anon_sym_RPAREN] = ACTIONS(41),
-    [anon_sym_LBRACK] = ACTIONS(41),
+    [anon_sym_then] = ACTIONS(41),
+    [anon_sym_elseif] = ACTIONS(41),
+    [anon_sym_else] = ACTIONS(43),
+    [anon_sym_endif] = ACTIONS(41),
+    [anon_sym_LBRACK] = ACTIONS(21),
     [anon_sym_RBRACK] = ACTIONS(41),
     [anon_sym_RBRACE] = ACTIONS(41),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
-  [6] = {
+  [7] = {
     [ts_builtin_sym_end] = ACTIONS(45),
     [anon_sym_SEMI] = ACTIONS(45),
     [anon_sym_EQ] = ACTIONS(47),
@@ -1615,13 +1795,17 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_COLON_COLON] = ACTIONS(45),
     [anon_sym_COMMA] = ACTIONS(45),
     [anon_sym_RPAREN] = ACTIONS(45),
+    [anon_sym_then] = ACTIONS(45),
+    [anon_sym_elseif] = ACTIONS(45),
+    [anon_sym_else] = ACTIONS(47),
+    [anon_sym_endif] = ACTIONS(45),
     [anon_sym_LBRACK] = ACTIONS(45),
     [anon_sym_RBRACK] = ACTIONS(45),
     [anon_sym_RBRACE] = ACTIONS(45),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
-  [7] = {
+  [8] = {
     [ts_builtin_sym_end] = ACTIONS(49),
     [anon_sym_SEMI] = ACTIONS(49),
     [anon_sym_EQ] = ACTIONS(51),
@@ -1656,13 +1840,17 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_COLON_COLON] = ACTIONS(49),
     [anon_sym_COMMA] = ACTIONS(49),
     [anon_sym_RPAREN] = ACTIONS(49),
+    [anon_sym_then] = ACTIONS(49),
+    [anon_sym_elseif] = ACTIONS(49),
+    [anon_sym_else] = ACTIONS(51),
+    [anon_sym_endif] = ACTIONS(49),
     [anon_sym_LBRACK] = ACTIONS(49),
     [anon_sym_RBRACK] = ACTIONS(49),
     [anon_sym_RBRACE] = ACTIONS(49),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
-  [8] = {
+  [9] = {
     [ts_builtin_sym_end] = ACTIONS(53),
     [anon_sym_SEMI] = ACTIONS(53),
     [anon_sym_EQ] = ACTIONS(55),
@@ -1697,13 +1885,17 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_COLON_COLON] = ACTIONS(53),
     [anon_sym_COMMA] = ACTIONS(53),
     [anon_sym_RPAREN] = ACTIONS(53),
+    [anon_sym_then] = ACTIONS(53),
+    [anon_sym_elseif] = ACTIONS(53),
+    [anon_sym_else] = ACTIONS(55),
+    [anon_sym_endif] = ACTIONS(53),
     [anon_sym_LBRACK] = ACTIONS(53),
     [anon_sym_RBRACK] = ACTIONS(53),
     [anon_sym_RBRACE] = ACTIONS(53),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
-  [9] = {
+  [10] = {
     [ts_builtin_sym_end] = ACTIONS(57),
     [anon_sym_SEMI] = ACTIONS(57),
     [anon_sym_EQ] = ACTIONS(59),
@@ -1738,136 +1930,17 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_COLON_COLON] = ACTIONS(57),
     [anon_sym_COMMA] = ACTIONS(57),
     [anon_sym_RPAREN] = ACTIONS(57),
+    [anon_sym_then] = ACTIONS(57),
+    [anon_sym_elseif] = ACTIONS(57),
+    [anon_sym_else] = ACTIONS(59),
+    [anon_sym_endif] = ACTIONS(57),
     [anon_sym_LBRACK] = ACTIONS(57),
     [anon_sym_RBRACK] = ACTIONS(57),
     [anon_sym_RBRACE] = ACTIONS(57),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
-  [10] = {
-    [ts_builtin_sym_end] = ACTIONS(15),
-    [anon_sym_SEMI] = ACTIONS(15),
-    [anon_sym_EQ] = ACTIONS(17),
-    [anon_sym_LT_DASH_GT] = ACTIONS(15),
-    [anon_sym_DASH_GT] = ACTIONS(15),
-    [anon_sym_LT_DASH] = ACTIONS(17),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
-    [anon_sym_xor] = ACTIONS(15),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
-    [anon_sym_EQ_EQ] = ACTIONS(15),
-    [anon_sym_BANG_EQ] = ACTIONS(15),
-    [anon_sym_LT] = ACTIONS(17),
-    [anon_sym_LT_EQ] = ACTIONS(15),
-    [anon_sym_GT] = ACTIONS(17),
-    [anon_sym_GT_EQ] = ACTIONS(15),
-    [anon_sym_in] = ACTIONS(17),
-    [anon_sym_subset] = ACTIONS(15),
-    [anon_sym_superset] = ACTIONS(15),
-    [anon_sym_union] = ACTIONS(15),
-    [anon_sym_diff] = ACTIONS(15),
-    [anon_sym_symdiff] = ACTIONS(15),
-    [anon_sym_intersect] = ACTIONS(15),
-    [anon_sym_DOT_DOT] = ACTIONS(15),
-    [anon_sym_PLUS] = ACTIONS(17),
-    [anon_sym_DASH] = ACTIONS(17),
-    [anon_sym_PLUS_PLUS] = ACTIONS(15),
-    [anon_sym_STAR] = ACTIONS(15),
-    [anon_sym_SLASH] = ACTIONS(17),
-    [anon_sym_div] = ACTIONS(15),
-    [anon_sym_mod] = ACTIONS(15),
-    [anon_sym_CARET] = ACTIONS(15),
-    [anon_sym_COLON_COLON] = ACTIONS(15),
-    [anon_sym_COMMA] = ACTIONS(15),
-    [anon_sym_RPAREN] = ACTIONS(15),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(15),
-    [anon_sym_RBRACE] = ACTIONS(15),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
   [11] = {
-    [ts_builtin_sym_end] = ACTIONS(15),
-    [anon_sym_SEMI] = ACTIONS(15),
-    [anon_sym_EQ] = ACTIONS(17),
-    [anon_sym_LT_DASH_GT] = ACTIONS(15),
-    [anon_sym_DASH_GT] = ACTIONS(15),
-    [anon_sym_LT_DASH] = ACTIONS(17),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
-    [anon_sym_xor] = ACTIONS(15),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
-    [anon_sym_EQ_EQ] = ACTIONS(15),
-    [anon_sym_BANG_EQ] = ACTIONS(15),
-    [anon_sym_LT] = ACTIONS(17),
-    [anon_sym_LT_EQ] = ACTIONS(15),
-    [anon_sym_GT] = ACTIONS(17),
-    [anon_sym_GT_EQ] = ACTIONS(15),
-    [anon_sym_in] = ACTIONS(17),
-    [anon_sym_subset] = ACTIONS(15),
-    [anon_sym_superset] = ACTIONS(15),
-    [anon_sym_union] = ACTIONS(15),
-    [anon_sym_diff] = ACTIONS(15),
-    [anon_sym_symdiff] = ACTIONS(15),
-    [anon_sym_intersect] = ACTIONS(15),
-    [anon_sym_DOT_DOT] = ACTIONS(15),
-    [anon_sym_PLUS] = ACTIONS(17),
-    [anon_sym_DASH] = ACTIONS(17),
-    [anon_sym_PLUS_PLUS] = ACTIONS(15),
-    [anon_sym_STAR] = ACTIONS(15),
-    [anon_sym_SLASH] = ACTIONS(17),
-    [anon_sym_div] = ACTIONS(15),
-    [anon_sym_mod] = ACTIONS(15),
-    [anon_sym_CARET] = ACTIONS(15),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(15),
-    [anon_sym_RPAREN] = ACTIONS(15),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(15),
-    [anon_sym_RBRACE] = ACTIONS(15),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [12] = {
-    [ts_builtin_sym_end] = ACTIONS(15),
-    [anon_sym_SEMI] = ACTIONS(15),
-    [anon_sym_EQ] = ACTIONS(17),
-    [anon_sym_LT_DASH_GT] = ACTIONS(15),
-    [anon_sym_DASH_GT] = ACTIONS(15),
-    [anon_sym_LT_DASH] = ACTIONS(17),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
-    [anon_sym_xor] = ACTIONS(15),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
-    [anon_sym_EQ_EQ] = ACTIONS(15),
-    [anon_sym_BANG_EQ] = ACTIONS(15),
-    [anon_sym_LT] = ACTIONS(17),
-    [anon_sym_LT_EQ] = ACTIONS(15),
-    [anon_sym_GT] = ACTIONS(17),
-    [anon_sym_GT_EQ] = ACTIONS(15),
-    [anon_sym_in] = ACTIONS(17),
-    [anon_sym_subset] = ACTIONS(15),
-    [anon_sym_superset] = ACTIONS(15),
-    [anon_sym_union] = ACTIONS(15),
-    [anon_sym_diff] = ACTIONS(15),
-    [anon_sym_symdiff] = ACTIONS(15),
-    [anon_sym_intersect] = ACTIONS(15),
-    [anon_sym_DOT_DOT] = ACTIONS(15),
-    [anon_sym_PLUS] = ACTIONS(17),
-    [anon_sym_DASH] = ACTIONS(17),
-    [anon_sym_PLUS_PLUS] = ACTIONS(15),
-    [anon_sym_STAR] = ACTIONS(31),
-    [anon_sym_SLASH] = ACTIONS(33),
-    [anon_sym_div] = ACTIONS(31),
-    [anon_sym_mod] = ACTIONS(31),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(15),
-    [anon_sym_RPAREN] = ACTIONS(15),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(15),
-    [anon_sym_RBRACE] = ACTIONS(15),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [13] = {
     [ts_builtin_sym_end] = ACTIONS(61),
     [anon_sym_SEMI] = ACTIONS(61),
     [anon_sym_EQ] = ACTIONS(63),
@@ -1902,54 +1975,242 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_COLON_COLON] = ACTIONS(61),
     [anon_sym_COMMA] = ACTIONS(61),
     [anon_sym_RPAREN] = ACTIONS(61),
+    [anon_sym_then] = ACTIONS(61),
+    [anon_sym_elseif] = ACTIONS(61),
+    [anon_sym_else] = ACTIONS(63),
+    [anon_sym_endif] = ACTIONS(61),
     [anon_sym_LBRACK] = ACTIONS(61),
     [anon_sym_RBRACK] = ACTIONS(61),
     [anon_sym_RBRACE] = ACTIONS(61),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
+  [12] = {
+    [ts_builtin_sym_end] = ACTIONS(65),
+    [anon_sym_SEMI] = ACTIONS(65),
+    [anon_sym_EQ] = ACTIONS(67),
+    [anon_sym_LT_DASH_GT] = ACTIONS(65),
+    [anon_sym_DASH_GT] = ACTIONS(65),
+    [anon_sym_LT_DASH] = ACTIONS(67),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(65),
+    [anon_sym_xor] = ACTIONS(65),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(65),
+    [anon_sym_EQ_EQ] = ACTIONS(65),
+    [anon_sym_BANG_EQ] = ACTIONS(65),
+    [anon_sym_LT] = ACTIONS(67),
+    [anon_sym_LT_EQ] = ACTIONS(65),
+    [anon_sym_GT] = ACTIONS(67),
+    [anon_sym_GT_EQ] = ACTIONS(65),
+    [anon_sym_in] = ACTIONS(67),
+    [anon_sym_subset] = ACTIONS(65),
+    [anon_sym_superset] = ACTIONS(65),
+    [anon_sym_union] = ACTIONS(65),
+    [anon_sym_diff] = ACTIONS(65),
+    [anon_sym_symdiff] = ACTIONS(65),
+    [anon_sym_intersect] = ACTIONS(65),
+    [anon_sym_DOT_DOT] = ACTIONS(65),
+    [anon_sym_PLUS] = ACTIONS(67),
+    [anon_sym_DASH] = ACTIONS(67),
+    [anon_sym_PLUS_PLUS] = ACTIONS(65),
+    [anon_sym_STAR] = ACTIONS(65),
+    [anon_sym_SLASH] = ACTIONS(67),
+    [anon_sym_div] = ACTIONS(65),
+    [anon_sym_mod] = ACTIONS(65),
+    [anon_sym_CARET] = ACTIONS(65),
+    [anon_sym_COLON_COLON] = ACTIONS(65),
+    [anon_sym_COMMA] = ACTIONS(65),
+    [anon_sym_RPAREN] = ACTIONS(65),
+    [anon_sym_then] = ACTIONS(65),
+    [anon_sym_elseif] = ACTIONS(65),
+    [anon_sym_else] = ACTIONS(67),
+    [anon_sym_endif] = ACTIONS(65),
+    [anon_sym_LBRACK] = ACTIONS(65),
+    [anon_sym_RBRACK] = ACTIONS(65),
+    [anon_sym_RBRACE] = ACTIONS(65),
+    [sym_line_comment] = ACTIONS(3),
+    [sym_block_comment] = ACTIONS(3),
+  },
+  [13] = {
+    [ts_builtin_sym_end] = ACTIONS(69),
+    [anon_sym_SEMI] = ACTIONS(69),
+    [anon_sym_EQ] = ACTIONS(71),
+    [anon_sym_LT_DASH_GT] = ACTIONS(69),
+    [anon_sym_DASH_GT] = ACTIONS(69),
+    [anon_sym_LT_DASH] = ACTIONS(71),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(69),
+    [anon_sym_xor] = ACTIONS(69),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(69),
+    [anon_sym_EQ_EQ] = ACTIONS(69),
+    [anon_sym_BANG_EQ] = ACTIONS(69),
+    [anon_sym_LT] = ACTIONS(71),
+    [anon_sym_LT_EQ] = ACTIONS(69),
+    [anon_sym_GT] = ACTIONS(71),
+    [anon_sym_GT_EQ] = ACTIONS(69),
+    [anon_sym_in] = ACTIONS(71),
+    [anon_sym_subset] = ACTIONS(69),
+    [anon_sym_superset] = ACTIONS(69),
+    [anon_sym_union] = ACTIONS(69),
+    [anon_sym_diff] = ACTIONS(69),
+    [anon_sym_symdiff] = ACTIONS(69),
+    [anon_sym_intersect] = ACTIONS(69),
+    [anon_sym_DOT_DOT] = ACTIONS(69),
+    [anon_sym_PLUS] = ACTIONS(71),
+    [anon_sym_DASH] = ACTIONS(71),
+    [anon_sym_PLUS_PLUS] = ACTIONS(69),
+    [anon_sym_STAR] = ACTIONS(69),
+    [anon_sym_SLASH] = ACTIONS(71),
+    [anon_sym_div] = ACTIONS(69),
+    [anon_sym_mod] = ACTIONS(69),
+    [anon_sym_CARET] = ACTIONS(69),
+    [anon_sym_COLON_COLON] = ACTIONS(69),
+    [anon_sym_COMMA] = ACTIONS(69),
+    [anon_sym_RPAREN] = ACTIONS(69),
+    [anon_sym_then] = ACTIONS(69),
+    [anon_sym_elseif] = ACTIONS(69),
+    [anon_sym_else] = ACTIONS(71),
+    [anon_sym_endif] = ACTIONS(69),
+    [anon_sym_LBRACK] = ACTIONS(69),
+    [anon_sym_RBRACK] = ACTIONS(69),
+    [anon_sym_RBRACE] = ACTIONS(69),
+    [sym_line_comment] = ACTIONS(3),
+    [sym_block_comment] = ACTIONS(3),
+  },
   [14] = {
-    [ts_builtin_sym_end] = ACTIONS(15),
-    [anon_sym_SEMI] = ACTIONS(15),
-    [anon_sym_EQ] = ACTIONS(17),
-    [anon_sym_LT_DASH_GT] = ACTIONS(15),
-    [anon_sym_DASH_GT] = ACTIONS(15),
-    [anon_sym_LT_DASH] = ACTIONS(17),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
-    [anon_sym_xor] = ACTIONS(15),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
-    [anon_sym_EQ_EQ] = ACTIONS(15),
-    [anon_sym_BANG_EQ] = ACTIONS(15),
-    [anon_sym_LT] = ACTIONS(17),
-    [anon_sym_LT_EQ] = ACTIONS(15),
-    [anon_sym_GT] = ACTIONS(17),
-    [anon_sym_GT_EQ] = ACTIONS(15),
-    [anon_sym_in] = ACTIONS(17),
-    [anon_sym_subset] = ACTIONS(15),
-    [anon_sym_superset] = ACTIONS(15),
-    [anon_sym_union] = ACTIONS(15),
-    [anon_sym_diff] = ACTIONS(15),
-    [anon_sym_symdiff] = ACTIONS(15),
-    [anon_sym_intersect] = ACTIONS(23),
-    [anon_sym_DOT_DOT] = ACTIONS(15),
-    [anon_sym_PLUS] = ACTIONS(27),
-    [anon_sym_DASH] = ACTIONS(27),
-    [anon_sym_PLUS_PLUS] = ACTIONS(29),
-    [anon_sym_STAR] = ACTIONS(31),
-    [anon_sym_SLASH] = ACTIONS(33),
-    [anon_sym_div] = ACTIONS(31),
-    [anon_sym_mod] = ACTIONS(31),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(15),
-    [anon_sym_RPAREN] = ACTIONS(15),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(15),
-    [anon_sym_RBRACE] = ACTIONS(15),
+    [ts_builtin_sym_end] = ACTIONS(73),
+    [anon_sym_SEMI] = ACTIONS(73),
+    [anon_sym_EQ] = ACTIONS(75),
+    [anon_sym_LT_DASH_GT] = ACTIONS(73),
+    [anon_sym_DASH_GT] = ACTIONS(73),
+    [anon_sym_LT_DASH] = ACTIONS(75),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(73),
+    [anon_sym_xor] = ACTIONS(73),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(73),
+    [anon_sym_EQ_EQ] = ACTIONS(73),
+    [anon_sym_BANG_EQ] = ACTIONS(73),
+    [anon_sym_LT] = ACTIONS(75),
+    [anon_sym_LT_EQ] = ACTIONS(73),
+    [anon_sym_GT] = ACTIONS(75),
+    [anon_sym_GT_EQ] = ACTIONS(73),
+    [anon_sym_in] = ACTIONS(75),
+    [anon_sym_subset] = ACTIONS(73),
+    [anon_sym_superset] = ACTIONS(73),
+    [anon_sym_union] = ACTIONS(73),
+    [anon_sym_diff] = ACTIONS(73),
+    [anon_sym_symdiff] = ACTIONS(73),
+    [anon_sym_intersect] = ACTIONS(73),
+    [anon_sym_DOT_DOT] = ACTIONS(73),
+    [anon_sym_PLUS] = ACTIONS(75),
+    [anon_sym_DASH] = ACTIONS(75),
+    [anon_sym_PLUS_PLUS] = ACTIONS(73),
+    [anon_sym_STAR] = ACTIONS(73),
+    [anon_sym_SLASH] = ACTIONS(75),
+    [anon_sym_div] = ACTIONS(73),
+    [anon_sym_mod] = ACTIONS(73),
+    [anon_sym_CARET] = ACTIONS(73),
+    [anon_sym_COLON_COLON] = ACTIONS(73),
+    [anon_sym_COMMA] = ACTIONS(73),
+    [anon_sym_RPAREN] = ACTIONS(73),
+    [anon_sym_then] = ACTIONS(73),
+    [anon_sym_elseif] = ACTIONS(73),
+    [anon_sym_else] = ACTIONS(75),
+    [anon_sym_endif] = ACTIONS(73),
+    [anon_sym_LBRACK] = ACTIONS(73),
+    [anon_sym_RBRACK] = ACTIONS(73),
+    [anon_sym_RBRACE] = ACTIONS(73),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
   [15] = {
+    [ts_builtin_sym_end] = ACTIONS(77),
+    [anon_sym_SEMI] = ACTIONS(77),
+    [anon_sym_EQ] = ACTIONS(79),
+    [anon_sym_LT_DASH_GT] = ACTIONS(77),
+    [anon_sym_DASH_GT] = ACTIONS(77),
+    [anon_sym_LT_DASH] = ACTIONS(79),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(77),
+    [anon_sym_xor] = ACTIONS(77),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(77),
+    [anon_sym_EQ_EQ] = ACTIONS(77),
+    [anon_sym_BANG_EQ] = ACTIONS(77),
+    [anon_sym_LT] = ACTIONS(79),
+    [anon_sym_LT_EQ] = ACTIONS(77),
+    [anon_sym_GT] = ACTIONS(79),
+    [anon_sym_GT_EQ] = ACTIONS(77),
+    [anon_sym_in] = ACTIONS(79),
+    [anon_sym_subset] = ACTIONS(77),
+    [anon_sym_superset] = ACTIONS(77),
+    [anon_sym_union] = ACTIONS(77),
+    [anon_sym_diff] = ACTIONS(77),
+    [anon_sym_symdiff] = ACTIONS(77),
+    [anon_sym_intersect] = ACTIONS(77),
+    [anon_sym_DOT_DOT] = ACTIONS(77),
+    [anon_sym_PLUS] = ACTIONS(79),
+    [anon_sym_DASH] = ACTIONS(79),
+    [anon_sym_PLUS_PLUS] = ACTIONS(77),
+    [anon_sym_STAR] = ACTIONS(77),
+    [anon_sym_SLASH] = ACTIONS(79),
+    [anon_sym_div] = ACTIONS(77),
+    [anon_sym_mod] = ACTIONS(77),
+    [anon_sym_CARET] = ACTIONS(77),
+    [anon_sym_COLON_COLON] = ACTIONS(77),
+    [anon_sym_COMMA] = ACTIONS(77),
+    [anon_sym_RPAREN] = ACTIONS(77),
+    [anon_sym_then] = ACTIONS(77),
+    [anon_sym_elseif] = ACTIONS(77),
+    [anon_sym_else] = ACTIONS(79),
+    [anon_sym_endif] = ACTIONS(77),
+    [anon_sym_LBRACK] = ACTIONS(77),
+    [anon_sym_RBRACK] = ACTIONS(77),
+    [anon_sym_RBRACE] = ACTIONS(77),
+    [sym_line_comment] = ACTIONS(3),
+    [sym_block_comment] = ACTIONS(3),
+  },
+  [16] = {
+    [ts_builtin_sym_end] = ACTIONS(81),
+    [anon_sym_SEMI] = ACTIONS(81),
+    [anon_sym_EQ] = ACTIONS(83),
+    [anon_sym_LT_DASH_GT] = ACTIONS(81),
+    [anon_sym_DASH_GT] = ACTIONS(81),
+    [anon_sym_LT_DASH] = ACTIONS(83),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(81),
+    [anon_sym_xor] = ACTIONS(81),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(81),
+    [anon_sym_EQ_EQ] = ACTIONS(81),
+    [anon_sym_BANG_EQ] = ACTIONS(81),
+    [anon_sym_LT] = ACTIONS(83),
+    [anon_sym_LT_EQ] = ACTIONS(81),
+    [anon_sym_GT] = ACTIONS(83),
+    [anon_sym_GT_EQ] = ACTIONS(81),
+    [anon_sym_in] = ACTIONS(83),
+    [anon_sym_subset] = ACTIONS(81),
+    [anon_sym_superset] = ACTIONS(81),
+    [anon_sym_union] = ACTIONS(81),
+    [anon_sym_diff] = ACTIONS(81),
+    [anon_sym_symdiff] = ACTIONS(81),
+    [anon_sym_intersect] = ACTIONS(81),
+    [anon_sym_DOT_DOT] = ACTIONS(81),
+    [anon_sym_PLUS] = ACTIONS(83),
+    [anon_sym_DASH] = ACTIONS(83),
+    [anon_sym_PLUS_PLUS] = ACTIONS(81),
+    [anon_sym_STAR] = ACTIONS(81),
+    [anon_sym_SLASH] = ACTIONS(83),
+    [anon_sym_div] = ACTIONS(81),
+    [anon_sym_mod] = ACTIONS(81),
+    [anon_sym_CARET] = ACTIONS(81),
+    [anon_sym_COLON_COLON] = ACTIONS(81),
+    [anon_sym_COMMA] = ACTIONS(81),
+    [anon_sym_RPAREN] = ACTIONS(81),
+    [anon_sym_then] = ACTIONS(81),
+    [anon_sym_elseif] = ACTIONS(81),
+    [anon_sym_else] = ACTIONS(83),
+    [anon_sym_endif] = ACTIONS(81),
+    [anon_sym_LBRACK] = ACTIONS(81),
+    [anon_sym_RBRACK] = ACTIONS(81),
+    [anon_sym_RBRACE] = ACTIONS(81),
+    [sym_line_comment] = ACTIONS(3),
+    [sym_block_comment] = ACTIONS(3),
+  },
+  [17] = {
     [ts_builtin_sym_end] = ACTIONS(15),
     [anon_sym_SEMI] = ACTIONS(15),
     [anon_sym_EQ] = ACTIONS(17),
@@ -1973,270 +2234,28 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_symdiff] = ACTIONS(15),
     [anon_sym_intersect] = ACTIONS(15),
     [anon_sym_DOT_DOT] = ACTIONS(15),
-    [anon_sym_PLUS] = ACTIONS(27),
-    [anon_sym_DASH] = ACTIONS(27),
-    [anon_sym_PLUS_PLUS] = ACTIONS(29),
-    [anon_sym_STAR] = ACTIONS(31),
-    [anon_sym_SLASH] = ACTIONS(33),
-    [anon_sym_div] = ACTIONS(31),
-    [anon_sym_mod] = ACTIONS(31),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
+    [anon_sym_PLUS] = ACTIONS(17),
+    [anon_sym_DASH] = ACTIONS(17),
+    [anon_sym_PLUS_PLUS] = ACTIONS(15),
+    [anon_sym_STAR] = ACTIONS(15),
+    [anon_sym_SLASH] = ACTIONS(17),
+    [anon_sym_div] = ACTIONS(15),
+    [anon_sym_mod] = ACTIONS(15),
+    [anon_sym_CARET] = ACTIONS(15),
+    [anon_sym_COLON_COLON] = ACTIONS(15),
     [anon_sym_COMMA] = ACTIONS(15),
     [anon_sym_RPAREN] = ACTIONS(15),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(15),
-    [anon_sym_RBRACE] = ACTIONS(15),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [16] = {
-    [ts_builtin_sym_end] = ACTIONS(15),
-    [anon_sym_SEMI] = ACTIONS(15),
-    [anon_sym_EQ] = ACTIONS(17),
-    [anon_sym_LT_DASH_GT] = ACTIONS(15),
-    [anon_sym_DASH_GT] = ACTIONS(15),
-    [anon_sym_LT_DASH] = ACTIONS(17),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
-    [anon_sym_xor] = ACTIONS(15),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
-    [anon_sym_EQ_EQ] = ACTIONS(15),
-    [anon_sym_BANG_EQ] = ACTIONS(15),
-    [anon_sym_LT] = ACTIONS(17),
-    [anon_sym_LT_EQ] = ACTIONS(15),
-    [anon_sym_GT] = ACTIONS(17),
-    [anon_sym_GT_EQ] = ACTIONS(15),
-    [anon_sym_in] = ACTIONS(17),
-    [anon_sym_subset] = ACTIONS(15),
-    [anon_sym_superset] = ACTIONS(15),
-    [anon_sym_union] = ACTIONS(15),
-    [anon_sym_diff] = ACTIONS(15),
-    [anon_sym_symdiff] = ACTIONS(21),
-    [anon_sym_intersect] = ACTIONS(23),
-    [anon_sym_DOT_DOT] = ACTIONS(25),
-    [anon_sym_PLUS] = ACTIONS(27),
-    [anon_sym_DASH] = ACTIONS(27),
-    [anon_sym_PLUS_PLUS] = ACTIONS(29),
-    [anon_sym_STAR] = ACTIONS(31),
-    [anon_sym_SLASH] = ACTIONS(33),
-    [anon_sym_div] = ACTIONS(31),
-    [anon_sym_mod] = ACTIONS(31),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(15),
-    [anon_sym_RPAREN] = ACTIONS(15),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(15),
-    [anon_sym_RBRACE] = ACTIONS(15),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [17] = {
-    [ts_builtin_sym_end] = ACTIONS(15),
-    [anon_sym_SEMI] = ACTIONS(15),
-    [anon_sym_EQ] = ACTIONS(65),
-    [anon_sym_LT_DASH_GT] = ACTIONS(15),
-    [anon_sym_DASH_GT] = ACTIONS(15),
-    [anon_sym_LT_DASH] = ACTIONS(17),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
-    [anon_sym_xor] = ACTIONS(15),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
-    [anon_sym_EQ_EQ] = ACTIONS(67),
-    [anon_sym_BANG_EQ] = ACTIONS(67),
-    [anon_sym_LT] = ACTIONS(65),
-    [anon_sym_LT_EQ] = ACTIONS(67),
-    [anon_sym_GT] = ACTIONS(65),
-    [anon_sym_GT_EQ] = ACTIONS(67),
-    [anon_sym_in] = ACTIONS(65),
-    [anon_sym_subset] = ACTIONS(67),
-    [anon_sym_superset] = ACTIONS(67),
-    [anon_sym_union] = ACTIONS(69),
-    [anon_sym_diff] = ACTIONS(19),
-    [anon_sym_symdiff] = ACTIONS(21),
-    [anon_sym_intersect] = ACTIONS(23),
-    [anon_sym_DOT_DOT] = ACTIONS(25),
-    [anon_sym_PLUS] = ACTIONS(27),
-    [anon_sym_DASH] = ACTIONS(27),
-    [anon_sym_PLUS_PLUS] = ACTIONS(29),
-    [anon_sym_STAR] = ACTIONS(31),
-    [anon_sym_SLASH] = ACTIONS(33),
-    [anon_sym_div] = ACTIONS(31),
-    [anon_sym_mod] = ACTIONS(31),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(15),
-    [anon_sym_RPAREN] = ACTIONS(15),
-    [anon_sym_LBRACK] = ACTIONS(39),
+    [anon_sym_then] = ACTIONS(15),
+    [anon_sym_elseif] = ACTIONS(15),
+    [anon_sym_else] = ACTIONS(17),
+    [anon_sym_endif] = ACTIONS(15),
+    [anon_sym_LBRACK] = ACTIONS(21),
     [anon_sym_RBRACK] = ACTIONS(15),
     [anon_sym_RBRACE] = ACTIONS(15),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
   [18] = {
-    [ts_builtin_sym_end] = ACTIONS(71),
-    [anon_sym_SEMI] = ACTIONS(71),
-    [anon_sym_EQ] = ACTIONS(73),
-    [anon_sym_LT_DASH_GT] = ACTIONS(71),
-    [anon_sym_DASH_GT] = ACTIONS(71),
-    [anon_sym_LT_DASH] = ACTIONS(73),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(71),
-    [anon_sym_xor] = ACTIONS(71),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(71),
-    [anon_sym_EQ_EQ] = ACTIONS(71),
-    [anon_sym_BANG_EQ] = ACTIONS(71),
-    [anon_sym_LT] = ACTIONS(73),
-    [anon_sym_LT_EQ] = ACTIONS(71),
-    [anon_sym_GT] = ACTIONS(73),
-    [anon_sym_GT_EQ] = ACTIONS(71),
-    [anon_sym_in] = ACTIONS(73),
-    [anon_sym_subset] = ACTIONS(71),
-    [anon_sym_superset] = ACTIONS(71),
-    [anon_sym_union] = ACTIONS(71),
-    [anon_sym_diff] = ACTIONS(71),
-    [anon_sym_symdiff] = ACTIONS(71),
-    [anon_sym_intersect] = ACTIONS(71),
-    [anon_sym_DOT_DOT] = ACTIONS(71),
-    [anon_sym_PLUS] = ACTIONS(73),
-    [anon_sym_DASH] = ACTIONS(73),
-    [anon_sym_PLUS_PLUS] = ACTIONS(71),
-    [anon_sym_STAR] = ACTIONS(71),
-    [anon_sym_SLASH] = ACTIONS(73),
-    [anon_sym_div] = ACTIONS(71),
-    [anon_sym_mod] = ACTIONS(71),
-    [anon_sym_CARET] = ACTIONS(71),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(71),
-    [anon_sym_RPAREN] = ACTIONS(71),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(71),
-    [anon_sym_RBRACE] = ACTIONS(71),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [19] = {
-    [ts_builtin_sym_end] = ACTIONS(75),
-    [anon_sym_SEMI] = ACTIONS(75),
-    [anon_sym_EQ] = ACTIONS(77),
-    [anon_sym_LT_DASH_GT] = ACTIONS(75),
-    [anon_sym_DASH_GT] = ACTIONS(75),
-    [anon_sym_LT_DASH] = ACTIONS(77),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(75),
-    [anon_sym_xor] = ACTIONS(75),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(75),
-    [anon_sym_EQ_EQ] = ACTIONS(75),
-    [anon_sym_BANG_EQ] = ACTIONS(75),
-    [anon_sym_LT] = ACTIONS(77),
-    [anon_sym_LT_EQ] = ACTIONS(75),
-    [anon_sym_GT] = ACTIONS(77),
-    [anon_sym_GT_EQ] = ACTIONS(75),
-    [anon_sym_in] = ACTIONS(77),
-    [anon_sym_subset] = ACTIONS(75),
-    [anon_sym_superset] = ACTIONS(75),
-    [anon_sym_union] = ACTIONS(75),
-    [anon_sym_diff] = ACTIONS(75),
-    [anon_sym_symdiff] = ACTIONS(75),
-    [anon_sym_intersect] = ACTIONS(75),
-    [anon_sym_DOT_DOT] = ACTIONS(75),
-    [anon_sym_PLUS] = ACTIONS(77),
-    [anon_sym_DASH] = ACTIONS(77),
-    [anon_sym_PLUS_PLUS] = ACTIONS(75),
-    [anon_sym_STAR] = ACTIONS(75),
-    [anon_sym_SLASH] = ACTIONS(77),
-    [anon_sym_div] = ACTIONS(75),
-    [anon_sym_mod] = ACTIONS(75),
-    [anon_sym_CARET] = ACTIONS(75),
-    [anon_sym_COLON_COLON] = ACTIONS(75),
-    [anon_sym_COMMA] = ACTIONS(75),
-    [anon_sym_RPAREN] = ACTIONS(75),
-    [anon_sym_LBRACK] = ACTIONS(75),
-    [anon_sym_RBRACK] = ACTIONS(75),
-    [anon_sym_RBRACE] = ACTIONS(75),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [20] = {
-    [ts_builtin_sym_end] = ACTIONS(15),
-    [anon_sym_SEMI] = ACTIONS(15),
-    [anon_sym_EQ] = ACTIONS(65),
-    [anon_sym_LT_DASH_GT] = ACTIONS(15),
-    [anon_sym_DASH_GT] = ACTIONS(15),
-    [anon_sym_LT_DASH] = ACTIONS(17),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
-    [anon_sym_xor] = ACTIONS(15),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(79),
-    [anon_sym_EQ_EQ] = ACTIONS(67),
-    [anon_sym_BANG_EQ] = ACTIONS(67),
-    [anon_sym_LT] = ACTIONS(65),
-    [anon_sym_LT_EQ] = ACTIONS(67),
-    [anon_sym_GT] = ACTIONS(65),
-    [anon_sym_GT_EQ] = ACTIONS(67),
-    [anon_sym_in] = ACTIONS(65),
-    [anon_sym_subset] = ACTIONS(67),
-    [anon_sym_superset] = ACTIONS(67),
-    [anon_sym_union] = ACTIONS(69),
-    [anon_sym_diff] = ACTIONS(19),
-    [anon_sym_symdiff] = ACTIONS(21),
-    [anon_sym_intersect] = ACTIONS(23),
-    [anon_sym_DOT_DOT] = ACTIONS(25),
-    [anon_sym_PLUS] = ACTIONS(27),
-    [anon_sym_DASH] = ACTIONS(27),
-    [anon_sym_PLUS_PLUS] = ACTIONS(29),
-    [anon_sym_STAR] = ACTIONS(31),
-    [anon_sym_SLASH] = ACTIONS(33),
-    [anon_sym_div] = ACTIONS(31),
-    [anon_sym_mod] = ACTIONS(31),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(15),
-    [anon_sym_RPAREN] = ACTIONS(15),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(15),
-    [anon_sym_RBRACE] = ACTIONS(15),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [21] = {
-    [ts_builtin_sym_end] = ACTIONS(15),
-    [anon_sym_SEMI] = ACTIONS(15),
-    [anon_sym_EQ] = ACTIONS(65),
-    [anon_sym_LT_DASH_GT] = ACTIONS(15),
-    [anon_sym_DASH_GT] = ACTIONS(81),
-    [anon_sym_LT_DASH] = ACTIONS(83),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
-    [anon_sym_xor] = ACTIONS(81),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(79),
-    [anon_sym_EQ_EQ] = ACTIONS(67),
-    [anon_sym_BANG_EQ] = ACTIONS(67),
-    [anon_sym_LT] = ACTIONS(65),
-    [anon_sym_LT_EQ] = ACTIONS(67),
-    [anon_sym_GT] = ACTIONS(65),
-    [anon_sym_GT_EQ] = ACTIONS(67),
-    [anon_sym_in] = ACTIONS(65),
-    [anon_sym_subset] = ACTIONS(67),
-    [anon_sym_superset] = ACTIONS(67),
-    [anon_sym_union] = ACTIONS(69),
-    [anon_sym_diff] = ACTIONS(19),
-    [anon_sym_symdiff] = ACTIONS(21),
-    [anon_sym_intersect] = ACTIONS(23),
-    [anon_sym_DOT_DOT] = ACTIONS(25),
-    [anon_sym_PLUS] = ACTIONS(27),
-    [anon_sym_DASH] = ACTIONS(27),
-    [anon_sym_PLUS_PLUS] = ACTIONS(29),
-    [anon_sym_STAR] = ACTIONS(31),
-    [anon_sym_SLASH] = ACTIONS(33),
-    [anon_sym_div] = ACTIONS(31),
-    [anon_sym_mod] = ACTIONS(31),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(15),
-    [anon_sym_RPAREN] = ACTIONS(15),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(15),
-    [anon_sym_RBRACE] = ACTIONS(15),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [22] = {
     [ts_builtin_sym_end] = ACTIONS(85),
     [anon_sym_SEMI] = ACTIONS(85),
     [anon_sym_EQ] = ACTIONS(87),
@@ -2271,54 +2290,17 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_COLON_COLON] = ACTIONS(85),
     [anon_sym_COMMA] = ACTIONS(85),
     [anon_sym_RPAREN] = ACTIONS(85),
+    [anon_sym_then] = ACTIONS(85),
+    [anon_sym_elseif] = ACTIONS(85),
+    [anon_sym_else] = ACTIONS(87),
+    [anon_sym_endif] = ACTIONS(85),
     [anon_sym_LBRACK] = ACTIONS(85),
     [anon_sym_RBRACK] = ACTIONS(85),
     [anon_sym_RBRACE] = ACTIONS(85),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
-  [23] = {
-    [ts_builtin_sym_end] = ACTIONS(15),
-    [anon_sym_SEMI] = ACTIONS(15),
-    [anon_sym_EQ] = ACTIONS(17),
-    [anon_sym_LT_DASH_GT] = ACTIONS(15),
-    [anon_sym_DASH_GT] = ACTIONS(15),
-    [anon_sym_LT_DASH] = ACTIONS(17),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
-    [anon_sym_xor] = ACTIONS(15),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
-    [anon_sym_EQ_EQ] = ACTIONS(15),
-    [anon_sym_BANG_EQ] = ACTIONS(15),
-    [anon_sym_LT] = ACTIONS(17),
-    [anon_sym_LT_EQ] = ACTIONS(15),
-    [anon_sym_GT] = ACTIONS(17),
-    [anon_sym_GT_EQ] = ACTIONS(15),
-    [anon_sym_in] = ACTIONS(17),
-    [anon_sym_subset] = ACTIONS(15),
-    [anon_sym_superset] = ACTIONS(15),
-    [anon_sym_union] = ACTIONS(69),
-    [anon_sym_diff] = ACTIONS(19),
-    [anon_sym_symdiff] = ACTIONS(21),
-    [anon_sym_intersect] = ACTIONS(23),
-    [anon_sym_DOT_DOT] = ACTIONS(25),
-    [anon_sym_PLUS] = ACTIONS(27),
-    [anon_sym_DASH] = ACTIONS(27),
-    [anon_sym_PLUS_PLUS] = ACTIONS(29),
-    [anon_sym_STAR] = ACTIONS(31),
-    [anon_sym_SLASH] = ACTIONS(33),
-    [anon_sym_div] = ACTIONS(31),
-    [anon_sym_mod] = ACTIONS(31),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(15),
-    [anon_sym_RPAREN] = ACTIONS(15),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(15),
-    [anon_sym_RBRACE] = ACTIONS(15),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [24] = {
+  [19] = {
     [ts_builtin_sym_end] = ACTIONS(89),
     [anon_sym_SEMI] = ACTIONS(89),
     [anon_sym_EQ] = ACTIONS(91),
@@ -2353,13 +2335,17 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_COLON_COLON] = ACTIONS(89),
     [anon_sym_COMMA] = ACTIONS(89),
     [anon_sym_RPAREN] = ACTIONS(89),
+    [anon_sym_then] = ACTIONS(89),
+    [anon_sym_elseif] = ACTIONS(89),
+    [anon_sym_else] = ACTIONS(91),
+    [anon_sym_endif] = ACTIONS(89),
     [anon_sym_LBRACK] = ACTIONS(89),
     [anon_sym_RBRACK] = ACTIONS(89),
     [anon_sym_RBRACE] = ACTIONS(89),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
-  [25] = {
+  [20] = {
     [ts_builtin_sym_end] = ACTIONS(93),
     [anon_sym_SEMI] = ACTIONS(93),
     [anon_sym_EQ] = ACTIONS(95),
@@ -2394,13 +2380,152 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_COLON_COLON] = ACTIONS(93),
     [anon_sym_COMMA] = ACTIONS(93),
     [anon_sym_RPAREN] = ACTIONS(93),
+    [anon_sym_then] = ACTIONS(93),
+    [anon_sym_elseif] = ACTIONS(93),
+    [anon_sym_else] = ACTIONS(95),
+    [anon_sym_endif] = ACTIONS(93),
     [anon_sym_LBRACK] = ACTIONS(93),
     [anon_sym_RBRACK] = ACTIONS(93),
     [anon_sym_RBRACE] = ACTIONS(93),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
-  [26] = {
+  [21] = {
+    [ts_builtin_sym_end] = ACTIONS(15),
+    [anon_sym_SEMI] = ACTIONS(15),
+    [anon_sym_EQ] = ACTIONS(17),
+    [anon_sym_LT_DASH_GT] = ACTIONS(15),
+    [anon_sym_DASH_GT] = ACTIONS(15),
+    [anon_sym_LT_DASH] = ACTIONS(17),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
+    [anon_sym_xor] = ACTIONS(15),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
+    [anon_sym_EQ_EQ] = ACTIONS(15),
+    [anon_sym_BANG_EQ] = ACTIONS(15),
+    [anon_sym_LT] = ACTIONS(17),
+    [anon_sym_LT_EQ] = ACTIONS(15),
+    [anon_sym_GT] = ACTIONS(17),
+    [anon_sym_GT_EQ] = ACTIONS(15),
+    [anon_sym_in] = ACTIONS(17),
+    [anon_sym_subset] = ACTIONS(15),
+    [anon_sym_superset] = ACTIONS(15),
+    [anon_sym_union] = ACTIONS(15),
+    [anon_sym_diff] = ACTIONS(15),
+    [anon_sym_symdiff] = ACTIONS(15),
+    [anon_sym_intersect] = ACTIONS(15),
+    [anon_sym_DOT_DOT] = ACTIONS(15),
+    [anon_sym_PLUS] = ACTIONS(17),
+    [anon_sym_DASH] = ACTIONS(17),
+    [anon_sym_PLUS_PLUS] = ACTIONS(15),
+    [anon_sym_STAR] = ACTIONS(15),
+    [anon_sym_SLASH] = ACTIONS(17),
+    [anon_sym_div] = ACTIONS(15),
+    [anon_sym_mod] = ACTIONS(15),
+    [anon_sym_CARET] = ACTIONS(35),
+    [anon_sym_COLON_COLON] = ACTIONS(19),
+    [anon_sym_COMMA] = ACTIONS(15),
+    [anon_sym_RPAREN] = ACTIONS(15),
+    [anon_sym_then] = ACTIONS(15),
+    [anon_sym_elseif] = ACTIONS(15),
+    [anon_sym_else] = ACTIONS(17),
+    [anon_sym_endif] = ACTIONS(15),
+    [anon_sym_LBRACK] = ACTIONS(21),
+    [anon_sym_RBRACK] = ACTIONS(15),
+    [anon_sym_RBRACE] = ACTIONS(15),
+    [sym_line_comment] = ACTIONS(3),
+    [sym_block_comment] = ACTIONS(3),
+  },
+  [22] = {
+    [ts_builtin_sym_end] = ACTIONS(15),
+    [anon_sym_SEMI] = ACTIONS(15),
+    [anon_sym_EQ] = ACTIONS(17),
+    [anon_sym_LT_DASH_GT] = ACTIONS(15),
+    [anon_sym_DASH_GT] = ACTIONS(15),
+    [anon_sym_LT_DASH] = ACTIONS(17),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
+    [anon_sym_xor] = ACTIONS(15),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
+    [anon_sym_EQ_EQ] = ACTIONS(15),
+    [anon_sym_BANG_EQ] = ACTIONS(15),
+    [anon_sym_LT] = ACTIONS(17),
+    [anon_sym_LT_EQ] = ACTIONS(15),
+    [anon_sym_GT] = ACTIONS(17),
+    [anon_sym_GT_EQ] = ACTIONS(15),
+    [anon_sym_in] = ACTIONS(17),
+    [anon_sym_subset] = ACTIONS(15),
+    [anon_sym_superset] = ACTIONS(15),
+    [anon_sym_union] = ACTIONS(15),
+    [anon_sym_diff] = ACTIONS(15),
+    [anon_sym_symdiff] = ACTIONS(15),
+    [anon_sym_intersect] = ACTIONS(15),
+    [anon_sym_DOT_DOT] = ACTIONS(15),
+    [anon_sym_PLUS] = ACTIONS(17),
+    [anon_sym_DASH] = ACTIONS(17),
+    [anon_sym_PLUS_PLUS] = ACTIONS(15),
+    [anon_sym_STAR] = ACTIONS(31),
+    [anon_sym_SLASH] = ACTIONS(33),
+    [anon_sym_div] = ACTIONS(31),
+    [anon_sym_mod] = ACTIONS(31),
+    [anon_sym_CARET] = ACTIONS(35),
+    [anon_sym_COLON_COLON] = ACTIONS(19),
+    [anon_sym_COMMA] = ACTIONS(15),
+    [anon_sym_RPAREN] = ACTIONS(15),
+    [anon_sym_then] = ACTIONS(15),
+    [anon_sym_elseif] = ACTIONS(15),
+    [anon_sym_else] = ACTIONS(17),
+    [anon_sym_endif] = ACTIONS(15),
+    [anon_sym_LBRACK] = ACTIONS(21),
+    [anon_sym_RBRACK] = ACTIONS(15),
+    [anon_sym_RBRACE] = ACTIONS(15),
+    [sym_line_comment] = ACTIONS(3),
+    [sym_block_comment] = ACTIONS(3),
+  },
+  [23] = {
+    [ts_builtin_sym_end] = ACTIONS(15),
+    [anon_sym_SEMI] = ACTIONS(15),
+    [anon_sym_EQ] = ACTIONS(17),
+    [anon_sym_LT_DASH_GT] = ACTIONS(15),
+    [anon_sym_DASH_GT] = ACTIONS(15),
+    [anon_sym_LT_DASH] = ACTIONS(17),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
+    [anon_sym_xor] = ACTIONS(15),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
+    [anon_sym_EQ_EQ] = ACTIONS(15),
+    [anon_sym_BANG_EQ] = ACTIONS(15),
+    [anon_sym_LT] = ACTIONS(17),
+    [anon_sym_LT_EQ] = ACTIONS(15),
+    [anon_sym_GT] = ACTIONS(17),
+    [anon_sym_GT_EQ] = ACTIONS(15),
+    [anon_sym_in] = ACTIONS(17),
+    [anon_sym_subset] = ACTIONS(15),
+    [anon_sym_superset] = ACTIONS(15),
+    [anon_sym_union] = ACTIONS(15),
+    [anon_sym_diff] = ACTIONS(15),
+    [anon_sym_symdiff] = ACTIONS(15),
+    [anon_sym_intersect] = ACTIONS(23),
+    [anon_sym_DOT_DOT] = ACTIONS(15),
+    [anon_sym_PLUS] = ACTIONS(27),
+    [anon_sym_DASH] = ACTIONS(27),
+    [anon_sym_PLUS_PLUS] = ACTIONS(29),
+    [anon_sym_STAR] = ACTIONS(31),
+    [anon_sym_SLASH] = ACTIONS(33),
+    [anon_sym_div] = ACTIONS(31),
+    [anon_sym_mod] = ACTIONS(31),
+    [anon_sym_CARET] = ACTIONS(35),
+    [anon_sym_COLON_COLON] = ACTIONS(19),
+    [anon_sym_COMMA] = ACTIONS(15),
+    [anon_sym_RPAREN] = ACTIONS(15),
+    [anon_sym_then] = ACTIONS(15),
+    [anon_sym_elseif] = ACTIONS(15),
+    [anon_sym_else] = ACTIONS(17),
+    [anon_sym_endif] = ACTIONS(15),
+    [anon_sym_LBRACK] = ACTIONS(21),
+    [anon_sym_RBRACK] = ACTIONS(15),
+    [anon_sym_RBRACE] = ACTIONS(15),
+    [sym_line_comment] = ACTIONS(3),
+    [sym_block_comment] = ACTIONS(3),
+  },
+  [24] = {
     [ts_builtin_sym_end] = ACTIONS(97),
     [anon_sym_SEMI] = ACTIONS(97),
     [anon_sym_EQ] = ACTIONS(99),
@@ -2435,13 +2560,17 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_COLON_COLON] = ACTIONS(97),
     [anon_sym_COMMA] = ACTIONS(97),
     [anon_sym_RPAREN] = ACTIONS(97),
+    [anon_sym_then] = ACTIONS(97),
+    [anon_sym_elseif] = ACTIONS(97),
+    [anon_sym_else] = ACTIONS(99),
+    [anon_sym_endif] = ACTIONS(97),
     [anon_sym_LBRACK] = ACTIONS(97),
     [anon_sym_RBRACK] = ACTIONS(97),
     [anon_sym_RBRACE] = ACTIONS(97),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
-  [27] = {
+  [25] = {
     [ts_builtin_sym_end] = ACTIONS(101),
     [anon_sym_SEMI] = ACTIONS(101),
     [anon_sym_EQ] = ACTIONS(103),
@@ -2476,13 +2605,62 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_COLON_COLON] = ACTIONS(101),
     [anon_sym_COMMA] = ACTIONS(101),
     [anon_sym_RPAREN] = ACTIONS(101),
+    [anon_sym_then] = ACTIONS(101),
+    [anon_sym_elseif] = ACTIONS(101),
+    [anon_sym_else] = ACTIONS(103),
+    [anon_sym_endif] = ACTIONS(101),
     [anon_sym_LBRACK] = ACTIONS(101),
     [anon_sym_RBRACK] = ACTIONS(101),
     [anon_sym_RBRACE] = ACTIONS(101),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
-  [28] = {
+  [26] = {
+    [ts_builtin_sym_end] = ACTIONS(15),
+    [anon_sym_SEMI] = ACTIONS(15),
+    [anon_sym_EQ] = ACTIONS(17),
+    [anon_sym_LT_DASH_GT] = ACTIONS(15),
+    [anon_sym_DASH_GT] = ACTIONS(15),
+    [anon_sym_LT_DASH] = ACTIONS(17),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
+    [anon_sym_xor] = ACTIONS(15),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
+    [anon_sym_EQ_EQ] = ACTIONS(15),
+    [anon_sym_BANG_EQ] = ACTIONS(15),
+    [anon_sym_LT] = ACTIONS(17),
+    [anon_sym_LT_EQ] = ACTIONS(15),
+    [anon_sym_GT] = ACTIONS(17),
+    [anon_sym_GT_EQ] = ACTIONS(15),
+    [anon_sym_in] = ACTIONS(17),
+    [anon_sym_subset] = ACTIONS(15),
+    [anon_sym_superset] = ACTIONS(15),
+    [anon_sym_union] = ACTIONS(15),
+    [anon_sym_diff] = ACTIONS(15),
+    [anon_sym_symdiff] = ACTIONS(15),
+    [anon_sym_intersect] = ACTIONS(15),
+    [anon_sym_DOT_DOT] = ACTIONS(15),
+    [anon_sym_PLUS] = ACTIONS(27),
+    [anon_sym_DASH] = ACTIONS(27),
+    [anon_sym_PLUS_PLUS] = ACTIONS(29),
+    [anon_sym_STAR] = ACTIONS(31),
+    [anon_sym_SLASH] = ACTIONS(33),
+    [anon_sym_div] = ACTIONS(31),
+    [anon_sym_mod] = ACTIONS(31),
+    [anon_sym_CARET] = ACTIONS(35),
+    [anon_sym_COLON_COLON] = ACTIONS(19),
+    [anon_sym_COMMA] = ACTIONS(15),
+    [anon_sym_RPAREN] = ACTIONS(15),
+    [anon_sym_then] = ACTIONS(15),
+    [anon_sym_elseif] = ACTIONS(15),
+    [anon_sym_else] = ACTIONS(17),
+    [anon_sym_endif] = ACTIONS(15),
+    [anon_sym_LBRACK] = ACTIONS(21),
+    [anon_sym_RBRACK] = ACTIONS(15),
+    [anon_sym_RBRACE] = ACTIONS(15),
+    [sym_line_comment] = ACTIONS(3),
+    [sym_block_comment] = ACTIONS(3),
+  },
+  [27] = {
     [ts_builtin_sym_end] = ACTIONS(105),
     [anon_sym_SEMI] = ACTIONS(105),
     [anon_sym_EQ] = ACTIONS(107),
@@ -2517,54 +2695,17 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_COLON_COLON] = ACTIONS(105),
     [anon_sym_COMMA] = ACTIONS(105),
     [anon_sym_RPAREN] = ACTIONS(105),
+    [anon_sym_then] = ACTIONS(105),
+    [anon_sym_elseif] = ACTIONS(105),
+    [anon_sym_else] = ACTIONS(107),
+    [anon_sym_endif] = ACTIONS(105),
     [anon_sym_LBRACK] = ACTIONS(105),
     [anon_sym_RBRACK] = ACTIONS(105),
     [anon_sym_RBRACE] = ACTIONS(105),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
-  [29] = {
-    [ts_builtin_sym_end] = ACTIONS(15),
-    [anon_sym_SEMI] = ACTIONS(15),
-    [anon_sym_EQ] = ACTIONS(17),
-    [anon_sym_LT_DASH_GT] = ACTIONS(15),
-    [anon_sym_DASH_GT] = ACTIONS(15),
-    [anon_sym_LT_DASH] = ACTIONS(17),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
-    [anon_sym_xor] = ACTIONS(15),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
-    [anon_sym_EQ_EQ] = ACTIONS(15),
-    [anon_sym_BANG_EQ] = ACTIONS(15),
-    [anon_sym_LT] = ACTIONS(17),
-    [anon_sym_LT_EQ] = ACTIONS(15),
-    [anon_sym_GT] = ACTIONS(17),
-    [anon_sym_GT_EQ] = ACTIONS(15),
-    [anon_sym_in] = ACTIONS(17),
-    [anon_sym_subset] = ACTIONS(15),
-    [anon_sym_superset] = ACTIONS(15),
-    [anon_sym_union] = ACTIONS(15),
-    [anon_sym_diff] = ACTIONS(15),
-    [anon_sym_symdiff] = ACTIONS(15),
-    [anon_sym_intersect] = ACTIONS(15),
-    [anon_sym_DOT_DOT] = ACTIONS(15),
-    [anon_sym_PLUS] = ACTIONS(17),
-    [anon_sym_DASH] = ACTIONS(17),
-    [anon_sym_PLUS_PLUS] = ACTIONS(15),
-    [anon_sym_STAR] = ACTIONS(15),
-    [anon_sym_SLASH] = ACTIONS(17),
-    [anon_sym_div] = ACTIONS(15),
-    [anon_sym_mod] = ACTIONS(15),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(15),
-    [anon_sym_RPAREN] = ACTIONS(15),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(15),
-    [anon_sym_RBRACE] = ACTIONS(15),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [30] = {
+  [28] = {
     [ts_builtin_sym_end] = ACTIONS(109),
     [anon_sym_SEMI] = ACTIONS(109),
     [anon_sym_EQ] = ACTIONS(111),
@@ -2599,33 +2740,38 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_COLON_COLON] = ACTIONS(109),
     [anon_sym_COMMA] = ACTIONS(109),
     [anon_sym_RPAREN] = ACTIONS(109),
+    [anon_sym_then] = ACTIONS(109),
+    [anon_sym_elseif] = ACTIONS(109),
+    [anon_sym_else] = ACTIONS(111),
+    [anon_sym_endif] = ACTIONS(109),
     [anon_sym_LBRACK] = ACTIONS(109),
     [anon_sym_RBRACK] = ACTIONS(109),
     [anon_sym_RBRACE] = ACTIONS(109),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
-  [31] = {
-    [aux_sym_index_expression_repeat1] = STATE(71),
-    [anon_sym_EQ] = ACTIONS(65),
-    [anon_sym_LT_DASH_GT] = ACTIONS(113),
-    [anon_sym_DASH_GT] = ACTIONS(81),
-    [anon_sym_LT_DASH] = ACTIONS(83),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(113),
-    [anon_sym_xor] = ACTIONS(81),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(79),
-    [anon_sym_EQ_EQ] = ACTIONS(67),
-    [anon_sym_BANG_EQ] = ACTIONS(67),
-    [anon_sym_LT] = ACTIONS(65),
-    [anon_sym_LT_EQ] = ACTIONS(67),
-    [anon_sym_GT] = ACTIONS(65),
-    [anon_sym_GT_EQ] = ACTIONS(67),
-    [anon_sym_in] = ACTIONS(65),
-    [anon_sym_subset] = ACTIONS(67),
-    [anon_sym_superset] = ACTIONS(67),
-    [anon_sym_union] = ACTIONS(69),
-    [anon_sym_diff] = ACTIONS(19),
-    [anon_sym_symdiff] = ACTIONS(21),
+  [29] = {
+    [ts_builtin_sym_end] = ACTIONS(15),
+    [anon_sym_SEMI] = ACTIONS(15),
+    [anon_sym_EQ] = ACTIONS(17),
+    [anon_sym_LT_DASH_GT] = ACTIONS(15),
+    [anon_sym_DASH_GT] = ACTIONS(15),
+    [anon_sym_LT_DASH] = ACTIONS(17),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
+    [anon_sym_xor] = ACTIONS(15),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
+    [anon_sym_EQ_EQ] = ACTIONS(15),
+    [anon_sym_BANG_EQ] = ACTIONS(15),
+    [anon_sym_LT] = ACTIONS(17),
+    [anon_sym_LT_EQ] = ACTIONS(15),
+    [anon_sym_GT] = ACTIONS(17),
+    [anon_sym_GT_EQ] = ACTIONS(15),
+    [anon_sym_in] = ACTIONS(17),
+    [anon_sym_subset] = ACTIONS(15),
+    [anon_sym_superset] = ACTIONS(15),
+    [anon_sym_union] = ACTIONS(15),
+    [anon_sym_diff] = ACTIONS(15),
+    [anon_sym_symdiff] = ACTIONS(113),
     [anon_sym_intersect] = ACTIONS(23),
     [anon_sym_DOT_DOT] = ACTIONS(25),
     [anon_sym_PLUS] = ACTIONS(27),
@@ -2636,33 +2782,131 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_div] = ACTIONS(31),
     [anon_sym_mod] = ACTIONS(31),
     [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(115),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(117),
+    [anon_sym_COLON_COLON] = ACTIONS(19),
+    [anon_sym_COMMA] = ACTIONS(15),
+    [anon_sym_RPAREN] = ACTIONS(15),
+    [anon_sym_then] = ACTIONS(15),
+    [anon_sym_elseif] = ACTIONS(15),
+    [anon_sym_else] = ACTIONS(17),
+    [anon_sym_endif] = ACTIONS(15),
+    [anon_sym_LBRACK] = ACTIONS(21),
+    [anon_sym_RBRACK] = ACTIONS(15),
+    [anon_sym_RBRACE] = ACTIONS(15),
+    [sym_line_comment] = ACTIONS(3),
+    [sym_block_comment] = ACTIONS(3),
+  },
+  [30] = {
+    [ts_builtin_sym_end] = ACTIONS(15),
+    [anon_sym_SEMI] = ACTIONS(15),
+    [anon_sym_EQ] = ACTIONS(17),
+    [anon_sym_LT_DASH_GT] = ACTIONS(15),
+    [anon_sym_DASH_GT] = ACTIONS(15),
+    [anon_sym_LT_DASH] = ACTIONS(17),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
+    [anon_sym_xor] = ACTIONS(15),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
+    [anon_sym_EQ_EQ] = ACTIONS(15),
+    [anon_sym_BANG_EQ] = ACTIONS(15),
+    [anon_sym_LT] = ACTIONS(17),
+    [anon_sym_LT_EQ] = ACTIONS(15),
+    [anon_sym_GT] = ACTIONS(17),
+    [anon_sym_GT_EQ] = ACTIONS(15),
+    [anon_sym_in] = ACTIONS(17),
+    [anon_sym_subset] = ACTIONS(15),
+    [anon_sym_superset] = ACTIONS(15),
+    [anon_sym_union] = ACTIONS(15),
+    [anon_sym_diff] = ACTIONS(115),
+    [anon_sym_symdiff] = ACTIONS(113),
+    [anon_sym_intersect] = ACTIONS(23),
+    [anon_sym_DOT_DOT] = ACTIONS(25),
+    [anon_sym_PLUS] = ACTIONS(27),
+    [anon_sym_DASH] = ACTIONS(27),
+    [anon_sym_PLUS_PLUS] = ACTIONS(29),
+    [anon_sym_STAR] = ACTIONS(31),
+    [anon_sym_SLASH] = ACTIONS(33),
+    [anon_sym_div] = ACTIONS(31),
+    [anon_sym_mod] = ACTIONS(31),
+    [anon_sym_CARET] = ACTIONS(35),
+    [anon_sym_COLON_COLON] = ACTIONS(19),
+    [anon_sym_COMMA] = ACTIONS(15),
+    [anon_sym_RPAREN] = ACTIONS(15),
+    [anon_sym_then] = ACTIONS(15),
+    [anon_sym_elseif] = ACTIONS(15),
+    [anon_sym_else] = ACTIONS(17),
+    [anon_sym_endif] = ACTIONS(15),
+    [anon_sym_LBRACK] = ACTIONS(21),
+    [anon_sym_RBRACK] = ACTIONS(15),
+    [anon_sym_RBRACE] = ACTIONS(15),
+    [sym_line_comment] = ACTIONS(3),
+    [sym_block_comment] = ACTIONS(3),
+  },
+  [31] = {
+    [ts_builtin_sym_end] = ACTIONS(15),
+    [anon_sym_SEMI] = ACTIONS(15),
+    [anon_sym_EQ] = ACTIONS(117),
+    [anon_sym_LT_DASH_GT] = ACTIONS(15),
+    [anon_sym_DASH_GT] = ACTIONS(15),
+    [anon_sym_LT_DASH] = ACTIONS(17),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
+    [anon_sym_xor] = ACTIONS(15),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
+    [anon_sym_EQ_EQ] = ACTIONS(119),
+    [anon_sym_BANG_EQ] = ACTIONS(119),
+    [anon_sym_LT] = ACTIONS(117),
+    [anon_sym_LT_EQ] = ACTIONS(119),
+    [anon_sym_GT] = ACTIONS(117),
+    [anon_sym_GT_EQ] = ACTIONS(119),
+    [anon_sym_in] = ACTIONS(117),
+    [anon_sym_subset] = ACTIONS(119),
+    [anon_sym_superset] = ACTIONS(119),
+    [anon_sym_union] = ACTIONS(121),
+    [anon_sym_diff] = ACTIONS(115),
+    [anon_sym_symdiff] = ACTIONS(113),
+    [anon_sym_intersect] = ACTIONS(23),
+    [anon_sym_DOT_DOT] = ACTIONS(25),
+    [anon_sym_PLUS] = ACTIONS(27),
+    [anon_sym_DASH] = ACTIONS(27),
+    [anon_sym_PLUS_PLUS] = ACTIONS(29),
+    [anon_sym_STAR] = ACTIONS(31),
+    [anon_sym_SLASH] = ACTIONS(33),
+    [anon_sym_div] = ACTIONS(31),
+    [anon_sym_mod] = ACTIONS(31),
+    [anon_sym_CARET] = ACTIONS(35),
+    [anon_sym_COLON_COLON] = ACTIONS(19),
+    [anon_sym_COMMA] = ACTIONS(15),
+    [anon_sym_RPAREN] = ACTIONS(15),
+    [anon_sym_then] = ACTIONS(15),
+    [anon_sym_elseif] = ACTIONS(15),
+    [anon_sym_else] = ACTIONS(17),
+    [anon_sym_endif] = ACTIONS(15),
+    [anon_sym_LBRACK] = ACTIONS(21),
+    [anon_sym_RBRACK] = ACTIONS(15),
+    [anon_sym_RBRACE] = ACTIONS(15),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
   [32] = {
-    [anon_sym_EQ] = ACTIONS(65),
-    [anon_sym_LT_DASH_GT] = ACTIONS(113),
-    [anon_sym_DASH_GT] = ACTIONS(81),
-    [anon_sym_LT_DASH] = ACTIONS(83),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(113),
-    [anon_sym_xor] = ACTIONS(81),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(79),
-    [anon_sym_EQ_EQ] = ACTIONS(67),
-    [anon_sym_BANG_EQ] = ACTIONS(67),
-    [anon_sym_LT] = ACTIONS(65),
-    [anon_sym_LT_EQ] = ACTIONS(67),
-    [anon_sym_GT] = ACTIONS(65),
-    [anon_sym_GT_EQ] = ACTIONS(67),
-    [anon_sym_in] = ACTIONS(65),
-    [anon_sym_subset] = ACTIONS(67),
-    [anon_sym_superset] = ACTIONS(67),
-    [anon_sym_union] = ACTIONS(69),
-    [anon_sym_diff] = ACTIONS(19),
-    [anon_sym_symdiff] = ACTIONS(21),
+    [ts_builtin_sym_end] = ACTIONS(15),
+    [anon_sym_SEMI] = ACTIONS(15),
+    [anon_sym_EQ] = ACTIONS(117),
+    [anon_sym_LT_DASH_GT] = ACTIONS(15),
+    [anon_sym_DASH_GT] = ACTIONS(15),
+    [anon_sym_LT_DASH] = ACTIONS(17),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
+    [anon_sym_xor] = ACTIONS(15),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(123),
+    [anon_sym_EQ_EQ] = ACTIONS(119),
+    [anon_sym_BANG_EQ] = ACTIONS(119),
+    [anon_sym_LT] = ACTIONS(117),
+    [anon_sym_LT_EQ] = ACTIONS(119),
+    [anon_sym_GT] = ACTIONS(117),
+    [anon_sym_GT_EQ] = ACTIONS(119),
+    [anon_sym_in] = ACTIONS(117),
+    [anon_sym_subset] = ACTIONS(119),
+    [anon_sym_superset] = ACTIONS(119),
+    [anon_sym_union] = ACTIONS(121),
+    [anon_sym_diff] = ACTIONS(115),
+    [anon_sym_symdiff] = ACTIONS(113),
     [anon_sym_intersect] = ACTIONS(23),
     [anon_sym_DOT_DOT] = ACTIONS(25),
     [anon_sym_PLUS] = ACTIONS(27),
@@ -2673,33 +2917,41 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_div] = ACTIONS(31),
     [anon_sym_mod] = ACTIONS(31),
     [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(119),
-    [anon_sym_RPAREN] = ACTIONS(121),
-    [anon_sym_LBRACK] = ACTIONS(39),
+    [anon_sym_COLON_COLON] = ACTIONS(19),
+    [anon_sym_COMMA] = ACTIONS(15),
+    [anon_sym_RPAREN] = ACTIONS(15),
+    [anon_sym_then] = ACTIONS(15),
+    [anon_sym_elseif] = ACTIONS(15),
+    [anon_sym_else] = ACTIONS(17),
+    [anon_sym_endif] = ACTIONS(15),
+    [anon_sym_LBRACK] = ACTIONS(21),
+    [anon_sym_RBRACK] = ACTIONS(15),
+    [anon_sym_RBRACE] = ACTIONS(15),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
   [33] = {
-    [anon_sym_EQ] = ACTIONS(65),
-    [anon_sym_LT_DASH_GT] = ACTIONS(113),
-    [anon_sym_DASH_GT] = ACTIONS(81),
-    [anon_sym_LT_DASH] = ACTIONS(83),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(113),
-    [anon_sym_xor] = ACTIONS(81),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(79),
-    [anon_sym_EQ_EQ] = ACTIONS(67),
-    [anon_sym_BANG_EQ] = ACTIONS(67),
-    [anon_sym_LT] = ACTIONS(65),
-    [anon_sym_LT_EQ] = ACTIONS(67),
-    [anon_sym_GT] = ACTIONS(65),
-    [anon_sym_GT_EQ] = ACTIONS(67),
-    [anon_sym_in] = ACTIONS(65),
-    [anon_sym_subset] = ACTIONS(67),
-    [anon_sym_superset] = ACTIONS(67),
-    [anon_sym_union] = ACTIONS(69),
-    [anon_sym_diff] = ACTIONS(19),
-    [anon_sym_symdiff] = ACTIONS(21),
+    [ts_builtin_sym_end] = ACTIONS(15),
+    [anon_sym_SEMI] = ACTIONS(15),
+    [anon_sym_EQ] = ACTIONS(117),
+    [anon_sym_LT_DASH_GT] = ACTIONS(15),
+    [anon_sym_DASH_GT] = ACTIONS(125),
+    [anon_sym_LT_DASH] = ACTIONS(127),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
+    [anon_sym_xor] = ACTIONS(125),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(123),
+    [anon_sym_EQ_EQ] = ACTIONS(119),
+    [anon_sym_BANG_EQ] = ACTIONS(119),
+    [anon_sym_LT] = ACTIONS(117),
+    [anon_sym_LT_EQ] = ACTIONS(119),
+    [anon_sym_GT] = ACTIONS(117),
+    [anon_sym_GT_EQ] = ACTIONS(119),
+    [anon_sym_in] = ACTIONS(117),
+    [anon_sym_subset] = ACTIONS(119),
+    [anon_sym_superset] = ACTIONS(119),
+    [anon_sym_union] = ACTIONS(121),
+    [anon_sym_diff] = ACTIONS(115),
+    [anon_sym_symdiff] = ACTIONS(113),
     [anon_sym_intersect] = ACTIONS(23),
     [anon_sym_DOT_DOT] = ACTIONS(25),
     [anon_sym_PLUS] = ACTIONS(27),
@@ -2710,33 +2962,41 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_div] = ACTIONS(31),
     [anon_sym_mod] = ACTIONS(31),
     [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(119),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(123),
+    [anon_sym_COLON_COLON] = ACTIONS(19),
+    [anon_sym_COMMA] = ACTIONS(15),
+    [anon_sym_RPAREN] = ACTIONS(15),
+    [anon_sym_then] = ACTIONS(15),
+    [anon_sym_elseif] = ACTIONS(15),
+    [anon_sym_else] = ACTIONS(17),
+    [anon_sym_endif] = ACTIONS(15),
+    [anon_sym_LBRACK] = ACTIONS(21),
+    [anon_sym_RBRACK] = ACTIONS(15),
+    [anon_sym_RBRACE] = ACTIONS(15),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
   [34] = {
-    [anon_sym_EQ] = ACTIONS(65),
-    [anon_sym_LT_DASH_GT] = ACTIONS(113),
-    [anon_sym_DASH_GT] = ACTIONS(81),
-    [anon_sym_LT_DASH] = ACTIONS(83),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(113),
-    [anon_sym_xor] = ACTIONS(81),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(79),
-    [anon_sym_EQ_EQ] = ACTIONS(67),
-    [anon_sym_BANG_EQ] = ACTIONS(67),
-    [anon_sym_LT] = ACTIONS(65),
-    [anon_sym_LT_EQ] = ACTIONS(67),
-    [anon_sym_GT] = ACTIONS(65),
-    [anon_sym_GT_EQ] = ACTIONS(67),
-    [anon_sym_in] = ACTIONS(65),
-    [anon_sym_subset] = ACTIONS(67),
-    [anon_sym_superset] = ACTIONS(67),
-    [anon_sym_union] = ACTIONS(69),
-    [anon_sym_diff] = ACTIONS(19),
-    [anon_sym_symdiff] = ACTIONS(21),
+    [ts_builtin_sym_end] = ACTIONS(15),
+    [anon_sym_SEMI] = ACTIONS(15),
+    [anon_sym_EQ] = ACTIONS(17),
+    [anon_sym_LT_DASH_GT] = ACTIONS(15),
+    [anon_sym_DASH_GT] = ACTIONS(15),
+    [anon_sym_LT_DASH] = ACTIONS(17),
+    [anon_sym_BSLASH_SLASH] = ACTIONS(15),
+    [anon_sym_xor] = ACTIONS(15),
+    [anon_sym_SLASH_BSLASH] = ACTIONS(15),
+    [anon_sym_EQ_EQ] = ACTIONS(15),
+    [anon_sym_BANG_EQ] = ACTIONS(15),
+    [anon_sym_LT] = ACTIONS(17),
+    [anon_sym_LT_EQ] = ACTIONS(15),
+    [anon_sym_GT] = ACTIONS(17),
+    [anon_sym_GT_EQ] = ACTIONS(15),
+    [anon_sym_in] = ACTIONS(17),
+    [anon_sym_subset] = ACTIONS(15),
+    [anon_sym_superset] = ACTIONS(15),
+    [anon_sym_union] = ACTIONS(121),
+    [anon_sym_diff] = ACTIONS(115),
+    [anon_sym_symdiff] = ACTIONS(113),
     [anon_sym_intersect] = ACTIONS(23),
     [anon_sym_DOT_DOT] = ACTIONS(25),
     [anon_sym_PLUS] = ACTIONS(27),
@@ -2747,206 +3007,27 @@ static uint16_t ts_parse_table[LARGE_STATE_COUNT][SYMBOL_COUNT] = {
     [anon_sym_div] = ACTIONS(31),
     [anon_sym_mod] = ACTIONS(31),
     [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(125),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(125),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [35] = {
-    [anon_sym_EQ] = ACTIONS(65),
-    [anon_sym_LT_DASH_GT] = ACTIONS(113),
-    [anon_sym_DASH_GT] = ACTIONS(81),
-    [anon_sym_LT_DASH] = ACTIONS(83),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(113),
-    [anon_sym_xor] = ACTIONS(81),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(79),
-    [anon_sym_EQ_EQ] = ACTIONS(67),
-    [anon_sym_BANG_EQ] = ACTIONS(67),
-    [anon_sym_LT] = ACTIONS(65),
-    [anon_sym_LT_EQ] = ACTIONS(67),
-    [anon_sym_GT] = ACTIONS(65),
-    [anon_sym_GT_EQ] = ACTIONS(67),
-    [anon_sym_in] = ACTIONS(65),
-    [anon_sym_subset] = ACTIONS(67),
-    [anon_sym_superset] = ACTIONS(67),
-    [anon_sym_union] = ACTIONS(69),
-    [anon_sym_diff] = ACTIONS(19),
-    [anon_sym_symdiff] = ACTIONS(21),
-    [anon_sym_intersect] = ACTIONS(23),
-    [anon_sym_DOT_DOT] = ACTIONS(25),
-    [anon_sym_PLUS] = ACTIONS(27),
-    [anon_sym_DASH] = ACTIONS(27),
-    [anon_sym_PLUS_PLUS] = ACTIONS(29),
-    [anon_sym_STAR] = ACTIONS(31),
-    [anon_sym_SLASH] = ACTIONS(33),
-    [anon_sym_div] = ACTIONS(31),
-    [anon_sym_mod] = ACTIONS(31),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(119),
-    [anon_sym_RPAREN] = ACTIONS(127),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [36] = {
-    [ts_builtin_sym_end] = ACTIONS(129),
-    [anon_sym_SEMI] = ACTIONS(129),
-    [anon_sym_EQ] = ACTIONS(65),
-    [anon_sym_LT_DASH_GT] = ACTIONS(113),
-    [anon_sym_DASH_GT] = ACTIONS(81),
-    [anon_sym_LT_DASH] = ACTIONS(83),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(113),
-    [anon_sym_xor] = ACTIONS(81),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(79),
-    [anon_sym_EQ_EQ] = ACTIONS(67),
-    [anon_sym_BANG_EQ] = ACTIONS(67),
-    [anon_sym_LT] = ACTIONS(65),
-    [anon_sym_LT_EQ] = ACTIONS(67),
-    [anon_sym_GT] = ACTIONS(65),
-    [anon_sym_GT_EQ] = ACTIONS(67),
-    [anon_sym_in] = ACTIONS(65),
-    [anon_sym_subset] = ACTIONS(67),
-    [anon_sym_superset] = ACTIONS(67),
-    [anon_sym_union] = ACTIONS(69),
-    [anon_sym_diff] = ACTIONS(19),
-    [anon_sym_symdiff] = ACTIONS(21),
-    [anon_sym_intersect] = ACTIONS(23),
-    [anon_sym_DOT_DOT] = ACTIONS(25),
-    [anon_sym_PLUS] = ACTIONS(27),
-    [anon_sym_DASH] = ACTIONS(27),
-    [anon_sym_PLUS_PLUS] = ACTIONS(29),
-    [anon_sym_STAR] = ACTIONS(31),
-    [anon_sym_SLASH] = ACTIONS(33),
-    [anon_sym_div] = ACTIONS(31),
-    [anon_sym_mod] = ACTIONS(31),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [37] = {
-    [anon_sym_EQ] = ACTIONS(65),
-    [anon_sym_LT_DASH_GT] = ACTIONS(113),
-    [anon_sym_DASH_GT] = ACTIONS(81),
-    [anon_sym_LT_DASH] = ACTIONS(83),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(113),
-    [anon_sym_xor] = ACTIONS(81),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(79),
-    [anon_sym_EQ_EQ] = ACTIONS(67),
-    [anon_sym_BANG_EQ] = ACTIONS(67),
-    [anon_sym_LT] = ACTIONS(65),
-    [anon_sym_LT_EQ] = ACTIONS(67),
-    [anon_sym_GT] = ACTIONS(65),
-    [anon_sym_GT_EQ] = ACTIONS(67),
-    [anon_sym_in] = ACTIONS(65),
-    [anon_sym_subset] = ACTIONS(67),
-    [anon_sym_superset] = ACTIONS(67),
-    [anon_sym_union] = ACTIONS(69),
-    [anon_sym_diff] = ACTIONS(19),
-    [anon_sym_symdiff] = ACTIONS(21),
-    [anon_sym_intersect] = ACTIONS(23),
-    [anon_sym_DOT_DOT] = ACTIONS(25),
-    [anon_sym_PLUS] = ACTIONS(27),
-    [anon_sym_DASH] = ACTIONS(27),
-    [anon_sym_PLUS_PLUS] = ACTIONS(29),
-    [anon_sym_STAR] = ACTIONS(31),
-    [anon_sym_SLASH] = ACTIONS(33),
-    [anon_sym_div] = ACTIONS(31),
-    [anon_sym_mod] = ACTIONS(31),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(119),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACE] = ACTIONS(131),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [38] = {
-    [anon_sym_EQ] = ACTIONS(65),
-    [anon_sym_LT_DASH_GT] = ACTIONS(113),
-    [anon_sym_DASH_GT] = ACTIONS(81),
-    [anon_sym_LT_DASH] = ACTIONS(83),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(113),
-    [anon_sym_xor] = ACTIONS(81),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(79),
-    [anon_sym_EQ_EQ] = ACTIONS(67),
-    [anon_sym_BANG_EQ] = ACTIONS(67),
-    [anon_sym_LT] = ACTIONS(65),
-    [anon_sym_LT_EQ] = ACTIONS(67),
-    [anon_sym_GT] = ACTIONS(65),
-    [anon_sym_GT_EQ] = ACTIONS(67),
-    [anon_sym_in] = ACTIONS(65),
-    [anon_sym_subset] = ACTIONS(67),
-    [anon_sym_superset] = ACTIONS(67),
-    [anon_sym_union] = ACTIONS(69),
-    [anon_sym_diff] = ACTIONS(19),
-    [anon_sym_symdiff] = ACTIONS(21),
-    [anon_sym_intersect] = ACTIONS(23),
-    [anon_sym_DOT_DOT] = ACTIONS(25),
-    [anon_sym_PLUS] = ACTIONS(27),
-    [anon_sym_DASH] = ACTIONS(27),
-    [anon_sym_PLUS_PLUS] = ACTIONS(29),
-    [anon_sym_STAR] = ACTIONS(31),
-    [anon_sym_SLASH] = ACTIONS(33),
-    [anon_sym_div] = ACTIONS(31),
-    [anon_sym_mod] = ACTIONS(31),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(119),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACK] = ACTIONS(133),
-    [sym_line_comment] = ACTIONS(3),
-    [sym_block_comment] = ACTIONS(3),
-  },
-  [39] = {
-    [anon_sym_EQ] = ACTIONS(65),
-    [anon_sym_LT_DASH_GT] = ACTIONS(113),
-    [anon_sym_DASH_GT] = ACTIONS(81),
-    [anon_sym_LT_DASH] = ACTIONS(83),
-    [anon_sym_BSLASH_SLASH] = ACTIONS(113),
-    [anon_sym_xor] = ACTIONS(81),
-    [anon_sym_SLASH_BSLASH] = ACTIONS(79),
-    [anon_sym_EQ_EQ] = ACTIONS(67),
-    [anon_sym_BANG_EQ] = ACTIONS(67),
-    [anon_sym_LT] = ACTIONS(65),
-    [anon_sym_LT_EQ] = ACTIONS(67),
-    [anon_sym_GT] = ACTIONS(65),
-    [anon_sym_GT_EQ] = ACTIONS(67),
-    [anon_sym_in] = ACTIONS(65),
-    [anon_sym_subset] = ACTIONS(67),
-    [anon_sym_superset] = ACTIONS(67),
-    [anon_sym_union] = ACTIONS(69),
-    [anon_sym_diff] = ACTIONS(19),
-    [anon_sym_symdiff] = ACTIONS(21),
-    [anon_sym_intersect] = ACTIONS(23),
-    [anon_sym_DOT_DOT] = ACTIONS(25),
-    [anon_sym_PLUS] = ACTIONS(27),
-    [anon_sym_DASH] = ACTIONS(27),
-    [anon_sym_PLUS_PLUS] = ACTIONS(29),
-    [anon_sym_STAR] = ACTIONS(31),
-    [anon_sym_SLASH] = ACTIONS(33),
-    [anon_sym_div] = ACTIONS(31),
-    [anon_sym_mod] = ACTIONS(31),
-    [anon_sym_CARET] = ACTIONS(35),
-    [anon_sym_COLON_COLON] = ACTIONS(37),
-    [anon_sym_COMMA] = ACTIONS(119),
-    [anon_sym_LBRACK] = ACTIONS(39),
-    [anon_sym_RBRACE] = ACTIONS(135),
+    [anon_sym_COLON_COLON] = ACTIONS(19),
+    [anon_sym_COMMA] = ACTIONS(15),
+    [anon_sym_RPAREN] = ACTIONS(15),
+    [anon_sym_then] = ACTIONS(15),
+    [anon_sym_elseif] = ACTIONS(15),
+    [anon_sym_else] = ACTIONS(17),
+    [anon_sym_endif] = ACTIONS(15),
+    [anon_sym_LBRACK] = ACTIONS(21),
+    [anon_sym_RBRACK] = ACTIONS(15),
+    [anon_sym_RBRACE] = ACTIONS(15),
     [sym_line_comment] = ACTIONS(3),
     [sym_block_comment] = ACTIONS(3),
   },
 };
 
 static uint16_t ts_small_parse_table[] = {
-  [0] = 20,
+  [0] = 23,
     ACTIONS(19), 1,
-      anon_sym_diff,
+      anon_sym_COLON_COLON,
     ACTIONS(21), 1,
-      anon_sym_symdiff,
+      anon_sym_LBRACK,
     ACTIONS(23), 1,
       anon_sym_intersect,
     ACTIONS(25), 1,
@@ -2957,17 +3038,814 @@ static uint16_t ts_small_parse_table[] = {
       anon_sym_SLASH,
     ACTIONS(35), 1,
       anon_sym_CARET,
-    ACTIONS(37), 1,
-      anon_sym_COLON_COLON,
-    ACTIONS(39), 1,
-      anon_sym_LBRACK,
-    ACTIONS(69), 1,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
       anon_sym_union,
-    ACTIONS(79), 1,
+    ACTIONS(123), 1,
       anon_sym_SLASH_BSLASH,
-    ACTIONS(83), 1,
+    ACTIONS(127), 1,
       anon_sym_LT_DASH,
-    ACTIONS(119), 1,
+    ACTIONS(131), 1,
+      anon_sym_elseif,
+    ACTIONS(133), 1,
+      anon_sym_else,
+    ACTIONS(135), 1,
+      anon_sym_endif,
+    STATE(84), 1,
+      aux_sym_if_then_else_repeat1,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [84] = 21,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
+      anon_sym_LBRACK,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
+    ACTIONS(123), 1,
+      anon_sym_SLASH_BSLASH,
+    ACTIONS(127), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(139), 1,
+      anon_sym_else,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(137), 2,
+      anon_sym_elseif,
+      anon_sym_endif,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [163] = 22,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
+      anon_sym_LBRACK,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
+    ACTIONS(123), 1,
+      anon_sym_SLASH_BSLASH,
+    ACTIONS(127), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(141), 1,
+      anon_sym_COMMA,
+    ACTIONS(143), 1,
+      anon_sym_RBRACK,
+    STATE(90), 1,
+      aux_sym_index_expression_repeat1,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [244] = 21,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
+      anon_sym_LBRACK,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
+    ACTIONS(123), 1,
+      anon_sym_SLASH_BSLASH,
+    ACTIONS(127), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(145), 1,
+      anon_sym_COMMA,
+    ACTIONS(147), 1,
+      anon_sym_RBRACE,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [322] = 20,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
+      anon_sym_LBRACK,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
+    ACTIONS(123), 1,
+      anon_sym_SLASH_BSLASH,
+    ACTIONS(127), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(149), 2,
+      anon_sym_COMMA,
+      anon_sym_RBRACK,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [398] = 21,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
+      anon_sym_LBRACK,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
+    ACTIONS(123), 1,
+      anon_sym_SLASH_BSLASH,
+    ACTIONS(127), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(145), 1,
+      anon_sym_COMMA,
+    ACTIONS(151), 1,
+      anon_sym_RPAREN,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [476] = 21,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
+      anon_sym_LBRACK,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
+    ACTIONS(123), 1,
+      anon_sym_SLASH_BSLASH,
+    ACTIONS(127), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(145), 1,
+      anon_sym_COMMA,
+    ACTIONS(153), 1,
+      anon_sym_RBRACK,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [554] = 21,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
+      anon_sym_LBRACK,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
+    ACTIONS(123), 1,
+      anon_sym_SLASH_BSLASH,
+    ACTIONS(127), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(145), 1,
+      anon_sym_COMMA,
+    ACTIONS(155), 1,
+      anon_sym_RBRACE,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [632] = 20,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
+      anon_sym_LBRACK,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
+    ACTIONS(123), 1,
+      anon_sym_SLASH_BSLASH,
+    ACTIONS(127), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(157), 2,
+      ts_builtin_sym_end,
+      anon_sym_SEMI,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [708] = 21,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
+      anon_sym_LBRACK,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
+    ACTIONS(123), 1,
+      anon_sym_SLASH_BSLASH,
+    ACTIONS(127), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(145), 1,
+      anon_sym_COMMA,
+    ACTIONS(159), 1,
+      anon_sym_RBRACK,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [786] = 21,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
+      anon_sym_LBRACK,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
+    ACTIONS(123), 1,
+      anon_sym_SLASH_BSLASH,
+    ACTIONS(127), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(145), 1,
+      anon_sym_COMMA,
+    ACTIONS(161), 1,
+      anon_sym_RPAREN,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [864] = 20,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
+      anon_sym_LBRACK,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
+    ACTIONS(123), 1,
+      anon_sym_SLASH_BSLASH,
+    ACTIONS(127), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(163), 1,
+      anon_sym_endif,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [939] = 20,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
+      anon_sym_LBRACK,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
+    ACTIONS(123), 1,
+      anon_sym_SLASH_BSLASH,
+    ACTIONS(127), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(165), 1,
+      anon_sym_endif,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [1014] = 20,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
+      anon_sym_LBRACK,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
+    ACTIONS(123), 1,
+      anon_sym_SLASH_BSLASH,
+    ACTIONS(127), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(167), 1,
+      anon_sym_then,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [1089] = 20,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
+      anon_sym_LBRACK,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
+    ACTIONS(123), 1,
+      anon_sym_SLASH_BSLASH,
+    ACTIONS(127), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(145), 1,
       anon_sym_COMMA,
     ACTIONS(3), 2,
       sym_line_comment,
@@ -2975,263 +3853,121 @@ static uint16_t ts_small_parse_table[] = {
     ACTIONS(27), 2,
       anon_sym_PLUS,
       anon_sym_DASH,
-    ACTIONS(81), 2,
+    ACTIONS(125), 2,
       anon_sym_DASH_GT,
       anon_sym_xor,
-    ACTIONS(113), 2,
+    ACTIONS(129), 2,
       anon_sym_LT_DASH_GT,
       anon_sym_BSLASH_SLASH,
     ACTIONS(31), 3,
       anon_sym_STAR,
       anon_sym_div,
       anon_sym_mod,
-    ACTIONS(65), 4,
+    ACTIONS(117), 4,
       anon_sym_EQ,
       anon_sym_LT,
       anon_sym_GT,
       anon_sym_in,
-    ACTIONS(67), 6,
+    ACTIONS(119), 6,
       anon_sym_EQ_EQ,
       anon_sym_BANG_EQ,
       anon_sym_LT_EQ,
       anon_sym_GT_EQ,
       anon_sym_subset,
       anon_sym_superset,
-  [75] = 13,
-    ACTIONS(137), 1,
-      sym_identifier,
-    ACTIONS(145), 1,
+  [1164] = 20,
+    ACTIONS(19), 1,
+      anon_sym_COLON_COLON,
+    ACTIONS(21), 1,
       anon_sym_LBRACK,
-    ACTIONS(148), 1,
-      anon_sym_not,
-    ACTIONS(157), 1,
-      sym_integer_literal,
-    ACTIONS(160), 1,
-      anon_sym_LBRACE,
-    ACTIONS(163), 1,
-      anon_sym_DQUOTE,
-    STATE(41), 1,
-      aux_sym_call_repeat1,
-    ACTIONS(3), 2,
-      sym_line_comment,
-      sym_block_comment,
-    ACTIONS(140), 2,
-      anon_sym_DASH,
-      anon_sym_,
-    ACTIONS(151), 2,
-      sym_absent,
-      sym_float_literal,
-    ACTIONS(154), 2,
-      anon_sym_true,
-      anon_sym_false,
-    ACTIONS(143), 3,
-      anon_sym_RPAREN,
-      anon_sym_RBRACK,
-      anon_sym_RBRACE,
-    STATE(40), 10,
-      sym__expression,
-      sym_binary_operation,
-      sym_call,
-      sym_index_expression,
-      sym_unary_operation,
-      sym__literal,
-      sym_array_literal,
-      sym_boolean_literal,
-      sym_set_literal,
-      sym_string_literal,
-  [130] = 13,
-    ACTIONS(131), 1,
-      anon_sym_RBRACE,
-    ACTIONS(166), 1,
-      sym_identifier,
-    ACTIONS(170), 1,
-      anon_sym_LBRACK,
-    ACTIONS(172), 1,
-      anon_sym_not,
-    ACTIONS(178), 1,
-      sym_integer_literal,
-    ACTIONS(180), 1,
-      anon_sym_LBRACE,
-    ACTIONS(182), 1,
-      anon_sym_DQUOTE,
-    STATE(41), 1,
-      aux_sym_call_repeat1,
-    ACTIONS(3), 2,
-      sym_line_comment,
-      sym_block_comment,
-    ACTIONS(168), 2,
-      anon_sym_DASH,
-      anon_sym_,
-    ACTIONS(174), 2,
-      sym_absent,
-      sym_float_literal,
-    ACTIONS(176), 2,
-      anon_sym_true,
-      anon_sym_false,
-    STATE(39), 10,
-      sym__expression,
-      sym_binary_operation,
-      sym_call,
-      sym_index_expression,
-      sym_unary_operation,
-      sym__literal,
-      sym_array_literal,
-      sym_boolean_literal,
-      sym_set_literal,
-      sym_string_literal,
-  [183] = 13,
+    ACTIONS(23), 1,
+      anon_sym_intersect,
+    ACTIONS(25), 1,
+      anon_sym_DOT_DOT,
+    ACTIONS(29), 1,
+      anon_sym_PLUS_PLUS,
+    ACTIONS(33), 1,
+      anon_sym_SLASH,
+    ACTIONS(35), 1,
+      anon_sym_CARET,
+    ACTIONS(113), 1,
+      anon_sym_symdiff,
+    ACTIONS(115), 1,
+      anon_sym_diff,
+    ACTIONS(121), 1,
+      anon_sym_union,
     ACTIONS(123), 1,
-      anon_sym_RBRACK,
-    ACTIONS(166), 1,
-      sym_identifier,
-    ACTIONS(170), 1,
-      anon_sym_LBRACK,
-    ACTIONS(172), 1,
-      anon_sym_not,
-    ACTIONS(180), 1,
-      anon_sym_LBRACE,
-    ACTIONS(182), 1,
-      anon_sym_DQUOTE,
-    ACTIONS(186), 1,
-      sym_integer_literal,
-    STATE(41), 1,
-      aux_sym_call_repeat1,
-    ACTIONS(3), 2,
-      sym_line_comment,
-      sym_block_comment,
-    ACTIONS(168), 2,
-      anon_sym_DASH,
-      anon_sym_,
-    ACTIONS(176), 2,
-      anon_sym_true,
-      anon_sym_false,
-    ACTIONS(184), 2,
-      sym_absent,
-      sym_float_literal,
-    STATE(38), 10,
-      sym__expression,
-      sym_binary_operation,
-      sym_call,
-      sym_index_expression,
-      sym_unary_operation,
-      sym__literal,
-      sym_array_literal,
-      sym_boolean_literal,
-      sym_set_literal,
-      sym_string_literal,
-  [236] = 13,
-    ACTIONS(166), 1,
-      sym_identifier,
-    ACTIONS(170), 1,
-      anon_sym_LBRACK,
-    ACTIONS(172), 1,
-      anon_sym_not,
-    ACTIONS(180), 1,
-      anon_sym_LBRACE,
-    ACTIONS(182), 1,
-      anon_sym_DQUOTE,
-    ACTIONS(188), 1,
-      anon_sym_RBRACK,
-    ACTIONS(192), 1,
-      sym_integer_literal,
-    STATE(43), 1,
-      aux_sym_call_repeat1,
-    ACTIONS(3), 2,
-      sym_line_comment,
-      sym_block_comment,
-    ACTIONS(168), 2,
-      anon_sym_DASH,
-      anon_sym_,
-    ACTIONS(176), 2,
-      anon_sym_true,
-      anon_sym_false,
-    ACTIONS(190), 2,
-      sym_absent,
-      sym_float_literal,
-    STATE(33), 10,
-      sym__expression,
-      sym_binary_operation,
-      sym_call,
-      sym_index_expression,
-      sym_unary_operation,
-      sym__literal,
-      sym_array_literal,
-      sym_boolean_literal,
-      sym_set_literal,
-      sym_string_literal,
-  [289] = 13,
-    ACTIONS(166), 1,
-      sym_identifier,
-    ACTIONS(170), 1,
-      anon_sym_LBRACK,
-    ACTIONS(172), 1,
-      anon_sym_not,
-    ACTIONS(180), 1,
-      anon_sym_LBRACE,
-    ACTIONS(182), 1,
-      anon_sym_DQUOTE,
-    ACTIONS(196), 1,
-      sym_integer_literal,
-    ACTIONS(198), 1,
-      anon_sym_RBRACE,
-    STATE(42), 1,
-      aux_sym_call_repeat1,
-    ACTIONS(3), 2,
-      sym_line_comment,
-      sym_block_comment,
-    ACTIONS(168), 2,
-      anon_sym_DASH,
-      anon_sym_,
-    ACTIONS(176), 2,
-      anon_sym_true,
-      anon_sym_false,
-    ACTIONS(194), 2,
-      sym_absent,
-      sym_float_literal,
-    STATE(37), 10,
-      sym__expression,
-      sym_binary_operation,
-      sym_call,
-      sym_index_expression,
-      sym_unary_operation,
-      sym__literal,
-      sym_array_literal,
-      sym_boolean_literal,
-      sym_set_literal,
-      sym_string_literal,
-  [342] = 13,
+      anon_sym_SLASH_BSLASH,
     ACTIONS(127), 1,
-      anon_sym_RPAREN,
-    ACTIONS(166), 1,
+      anon_sym_LT_DASH,
+    ACTIONS(169), 1,
+      anon_sym_then,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(27), 2,
+      anon_sym_PLUS,
+      anon_sym_DASH,
+    ACTIONS(125), 2,
+      anon_sym_DASH_GT,
+      anon_sym_xor,
+    ACTIONS(129), 2,
+      anon_sym_LT_DASH_GT,
+      anon_sym_BSLASH_SLASH,
+    ACTIONS(31), 3,
+      anon_sym_STAR,
+      anon_sym_div,
+      anon_sym_mod,
+    ACTIONS(117), 4,
+      anon_sym_EQ,
+      anon_sym_LT,
+      anon_sym_GT,
+      anon_sym_in,
+    ACTIONS(119), 6,
+      anon_sym_EQ_EQ,
+      anon_sym_BANG_EQ,
+      anon_sym_LT_EQ,
+      anon_sym_GT_EQ,
+      anon_sym_subset,
+      anon_sym_superset,
+  [1239] = 14,
+    ACTIONS(171), 1,
       sym_identifier,
-    ACTIONS(170), 1,
-      anon_sym_LBRACK,
-    ACTIONS(172), 1,
-      anon_sym_not,
-    ACTIONS(180), 1,
-      anon_sym_LBRACE,
+    ACTIONS(179), 1,
+      anon_sym_if,
     ACTIONS(182), 1,
-      anon_sym_DQUOTE,
-    ACTIONS(202), 1,
+      anon_sym_LBRACK,
+    ACTIONS(185), 1,
+      anon_sym_not,
+    ACTIONS(194), 1,
       sym_integer_literal,
-    STATE(41), 1,
+    ACTIONS(197), 1,
+      anon_sym_LBRACE,
+    ACTIONS(200), 1,
+      anon_sym_DQUOTE,
+    STATE(51), 1,
       aux_sym_call_repeat1,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(174), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
-      anon_sym_true,
-      anon_sym_false,
-    ACTIONS(200), 2,
+    ACTIONS(188), 2,
       sym_absent,
       sym_float_literal,
-    STATE(32), 10,
+    ACTIONS(191), 2,
+      anon_sym_true,
+      anon_sym_false,
+    ACTIONS(177), 3,
+      anon_sym_RPAREN,
+      anon_sym_RBRACK,
+      anon_sym_RBRACE,
+    STATE(49), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3239,39 +3975,42 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [395] = 13,
-    ACTIONS(166), 1,
+  [1298] = 14,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
-      anon_sym_LBRACK,
-    ACTIONS(172), 1,
-      anon_sym_not,
-    ACTIONS(180), 1,
-      anon_sym_LBRACE,
-    ACTIONS(182), 1,
-      anon_sym_DQUOTE,
-    ACTIONS(204), 1,
+    ACTIONS(207), 1,
       anon_sym_RPAREN,
-    ACTIONS(208), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
+      anon_sym_LBRACK,
+    ACTIONS(213), 1,
+      anon_sym_not,
+    ACTIONS(219), 1,
       sym_integer_literal,
-    STATE(46), 1,
+    ACTIONS(221), 1,
+      anon_sym_LBRACE,
+    ACTIONS(223), 1,
+      anon_sym_DQUOTE,
+    STATE(55), 1,
       aux_sym_call_repeat1,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
-      anon_sym_true,
-      anon_sym_false,
-    ACTIONS(206), 2,
+    ACTIONS(215), 2,
       sym_absent,
       sym_float_literal,
-    STATE(35), 10,
+    ACTIONS(217), 2,
+      anon_sym_true,
+      anon_sym_false,
+    STATE(45), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3279,35 +4018,42 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [448] = 11,
-    ACTIONS(166), 1,
+  [1355] = 14,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(212), 1,
+    ACTIONS(225), 1,
+      anon_sym_RBRACK,
+    ACTIONS(229), 1,
       sym_integer_literal,
+    STATE(57), 1,
+      aux_sym_call_repeat1,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(210), 2,
+    ACTIONS(227), 2,
       sym_absent,
       sym_float_literal,
-    STATE(21), 10,
+    STATE(44), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3315,35 +4061,42 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [495] = 11,
-    ACTIONS(166), 1,
+  [1412] = 14,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(216), 1,
+    ACTIONS(233), 1,
       sym_integer_literal,
+    ACTIONS(235), 1,
+      anon_sym_RBRACE,
+    STATE(56), 1,
+      aux_sym_call_repeat1,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(214), 2,
+    ACTIONS(231), 2,
       sym_absent,
       sym_float_literal,
-    STATE(20), 10,
+    STATE(38), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3351,35 +4104,42 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [542] = 11,
-    ACTIONS(166), 1,
+  [1469] = 14,
+    ACTIONS(161), 1,
+      anon_sym_RPAREN,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(220), 1,
+    ACTIONS(239), 1,
       sym_integer_literal,
+    STATE(51), 1,
+      aux_sym_call_repeat1,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(218), 2,
+    ACTIONS(237), 2,
       sym_absent,
       sym_float_literal,
-    STATE(34), 10,
+    STATE(40), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3387,35 +4147,42 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [589] = 11,
-    ACTIONS(166), 1,
+  [1526] = 14,
+    ACTIONS(147), 1,
+      anon_sym_RBRACE,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(224), 1,
+    ACTIONS(243), 1,
       sym_integer_literal,
+    STATE(51), 1,
+      aux_sym_call_repeat1,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(222), 2,
+    ACTIONS(241), 2,
       sym_absent,
       sym_float_literal,
-    STATE(10), 10,
+    STATE(42), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3423,35 +4190,42 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [636] = 11,
-    ACTIONS(166), 1,
+  [1583] = 14,
+    ACTIONS(159), 1,
+      anon_sym_RBRACK,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(228), 1,
+    ACTIONS(247), 1,
       sym_integer_literal,
+    STATE(51), 1,
+      aux_sym_call_repeat1,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(226), 2,
+    ACTIONS(245), 2,
       sym_absent,
       sym_float_literal,
-    STATE(3), 10,
+    STATE(41), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3459,35 +4233,38 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [683] = 11,
-    ACTIONS(166), 1,
+  [1640] = 12,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(232), 1,
+    ACTIONS(251), 1,
       sym_integer_literal,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(230), 2,
+    ACTIONS(249), 2,
       sym_absent,
       sym_float_literal,
-    STATE(23), 10,
+    STATE(4), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3495,35 +4272,38 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [730] = 11,
-    ACTIONS(166), 1,
+  [1691] = 12,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(236), 1,
+    ACTIONS(255), 1,
       sym_integer_literal,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(234), 2,
+    ACTIONS(253), 2,
       sym_absent,
       sym_float_literal,
-    STATE(14), 10,
+    STATE(46), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3531,35 +4311,38 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [777] = 11,
-    ACTIONS(166), 1,
+  [1742] = 12,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(240), 1,
+    ACTIONS(259), 1,
       sym_integer_literal,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(238), 2,
+    ACTIONS(257), 2,
       sym_absent,
       sym_float_literal,
-    STATE(17), 10,
+    STATE(29), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3567,35 +4350,38 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [824] = 11,
-    ACTIONS(166), 1,
+  [1793] = 12,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(244), 1,
+    ACTIONS(263), 1,
       sym_integer_literal,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(242), 2,
+    ACTIONS(261), 2,
       sym_absent,
       sym_float_literal,
-    STATE(16), 10,
+    STATE(30), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3603,35 +4389,38 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [871] = 11,
-    ACTIONS(166), 1,
+  [1844] = 12,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(248), 1,
+    ACTIONS(267), 1,
       sym_integer_literal,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(246), 2,
+    ACTIONS(265), 2,
       sym_absent,
       sym_float_literal,
-    STATE(36), 10,
+    STATE(31), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3639,35 +4428,38 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [918] = 11,
-    ACTIONS(166), 1,
+  [1895] = 12,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(252), 1,
+    ACTIONS(271), 1,
       sym_integer_literal,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(250), 2,
+    ACTIONS(269), 2,
       sym_absent,
       sym_float_literal,
-    STATE(4), 10,
+    STATE(32), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3675,35 +4467,38 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [965] = 11,
-    ACTIONS(166), 1,
+  [1946] = 12,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(256), 1,
+    ACTIONS(275), 1,
       sym_integer_literal,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(254), 2,
+    ACTIONS(273), 2,
       sym_absent,
       sym_float_literal,
-    STATE(15), 10,
+    STATE(33), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3711,35 +4506,38 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [1012] = 11,
-    ACTIONS(166), 1,
+  [1997] = 12,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(260), 1,
+    ACTIONS(279), 1,
       sym_integer_literal,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(258), 2,
+    ACTIONS(277), 2,
       sym_absent,
       sym_float_literal,
-    STATE(11), 10,
+    STATE(34), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3747,35 +4545,38 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [1059] = 11,
-    ACTIONS(166), 1,
+  [2048] = 12,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(264), 1,
+    ACTIONS(283), 1,
       sym_integer_literal,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(262), 2,
+    ACTIONS(281), 2,
       sym_absent,
       sym_float_literal,
-    STATE(12), 10,
+    STATE(43), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3783,35 +4584,38 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [1106] = 11,
-    ACTIONS(166), 1,
+  [2099] = 12,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(268), 1,
+    ACTIONS(287), 1,
       sym_integer_literal,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(266), 2,
+    ACTIONS(285), 2,
       sym_absent,
       sym_float_literal,
-    STATE(29), 10,
+    STATE(22), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3819,35 +4623,38 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [1153] = 11,
-    ACTIONS(166), 1,
+  [2150] = 12,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(272), 1,
+    ACTIONS(291), 1,
       sym_integer_literal,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(270), 2,
+    ACTIONS(289), 2,
       sym_absent,
       sym_float_literal,
-    STATE(31), 10,
+    STATE(21), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3855,35 +4662,38 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [1200] = 11,
-    ACTIONS(166), 1,
+  [2201] = 12,
+    ACTIONS(203), 1,
       sym_identifier,
-    ACTIONS(170), 1,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
       anon_sym_LBRACK,
-    ACTIONS(172), 1,
+    ACTIONS(213), 1,
       anon_sym_not,
-    ACTIONS(180), 1,
+    ACTIONS(221), 1,
       anon_sym_LBRACE,
-    ACTIONS(182), 1,
+    ACTIONS(223), 1,
       anon_sym_DQUOTE,
-    ACTIONS(276), 1,
+    ACTIONS(295), 1,
       sym_integer_literal,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(168), 2,
+    ACTIONS(205), 2,
       anon_sym_DASH,
       anon_sym_,
-    ACTIONS(176), 2,
+    ACTIONS(217), 2,
       anon_sym_true,
       anon_sym_false,
-    ACTIONS(274), 2,
+    ACTIONS(293), 2,
       sym_absent,
       sym_float_literal,
-    STATE(18), 10,
+    STATE(37), 11,
       sym__expression,
       sym_binary_operation,
       sym_call,
+      sym_if_then_else,
       sym_index_expression,
       sym_unary_operation,
       sym__literal,
@@ -3891,17 +4701,447 @@ static uint16_t ts_small_parse_table[] = {
       sym_boolean_literal,
       sym_set_literal,
       sym_string_literal,
-  [1247] = 3,
+  [2252] = 12,
+    ACTIONS(203), 1,
+      sym_identifier,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
+      anon_sym_LBRACK,
+    ACTIONS(213), 1,
+      anon_sym_not,
+    ACTIONS(221), 1,
+      anon_sym_LBRACE,
+    ACTIONS(223), 1,
+      anon_sym_DQUOTE,
+    ACTIONS(299), 1,
+      sym_integer_literal,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(278), 5,
+    ACTIONS(205), 2,
+      anon_sym_DASH,
+      anon_sym_,
+    ACTIONS(217), 2,
+      anon_sym_true,
+      anon_sym_false,
+    ACTIONS(297), 2,
+      sym_absent,
+      sym_float_literal,
+    STATE(3), 11,
+      sym__expression,
+      sym_binary_operation,
+      sym_call,
+      sym_if_then_else,
+      sym_index_expression,
+      sym_unary_operation,
+      sym__literal,
+      sym_array_literal,
+      sym_boolean_literal,
+      sym_set_literal,
+      sym_string_literal,
+  [2303] = 12,
+    ACTIONS(203), 1,
+      sym_identifier,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
+      anon_sym_LBRACK,
+    ACTIONS(213), 1,
+      anon_sym_not,
+    ACTIONS(221), 1,
+      anon_sym_LBRACE,
+    ACTIONS(223), 1,
+      anon_sym_DQUOTE,
+    ACTIONS(303), 1,
+      sym_integer_literal,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(205), 2,
+      anon_sym_DASH,
+      anon_sym_,
+    ACTIONS(217), 2,
+      anon_sym_true,
+      anon_sym_false,
+    ACTIONS(301), 2,
+      sym_absent,
+      sym_float_literal,
+    STATE(26), 11,
+      sym__expression,
+      sym_binary_operation,
+      sym_call,
+      sym_if_then_else,
+      sym_index_expression,
+      sym_unary_operation,
+      sym__literal,
+      sym_array_literal,
+      sym_boolean_literal,
+      sym_set_literal,
+      sym_string_literal,
+  [2354] = 12,
+    ACTIONS(203), 1,
+      sym_identifier,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
+      anon_sym_LBRACK,
+    ACTIONS(213), 1,
+      anon_sym_not,
+    ACTIONS(221), 1,
+      anon_sym_LBRACE,
+    ACTIONS(223), 1,
+      anon_sym_DQUOTE,
+    ACTIONS(307), 1,
+      sym_integer_literal,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(205), 2,
+      anon_sym_DASH,
+      anon_sym_,
+    ACTIONS(217), 2,
+      anon_sym_true,
+      anon_sym_false,
+    ACTIONS(305), 2,
+      sym_absent,
+      sym_float_literal,
+    STATE(17), 11,
+      sym__expression,
+      sym_binary_operation,
+      sym_call,
+      sym_if_then_else,
+      sym_index_expression,
+      sym_unary_operation,
+      sym__literal,
+      sym_array_literal,
+      sym_boolean_literal,
+      sym_set_literal,
+      sym_string_literal,
+  [2405] = 12,
+    ACTIONS(203), 1,
+      sym_identifier,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
+      anon_sym_LBRACK,
+    ACTIONS(213), 1,
+      anon_sym_not,
+    ACTIONS(221), 1,
+      anon_sym_LBRACE,
+    ACTIONS(223), 1,
+      anon_sym_DQUOTE,
+    ACTIONS(311), 1,
+      sym_integer_literal,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(205), 2,
+      anon_sym_DASH,
+      anon_sym_,
+    ACTIONS(217), 2,
+      anon_sym_true,
+      anon_sym_false,
+    ACTIONS(309), 2,
+      sym_absent,
+      sym_float_literal,
+    STATE(23), 11,
+      sym__expression,
+      sym_binary_operation,
+      sym_call,
+      sym_if_then_else,
+      sym_index_expression,
+      sym_unary_operation,
+      sym__literal,
+      sym_array_literal,
+      sym_boolean_literal,
+      sym_set_literal,
+      sym_string_literal,
+  [2456] = 12,
+    ACTIONS(203), 1,
+      sym_identifier,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
+      anon_sym_LBRACK,
+    ACTIONS(213), 1,
+      anon_sym_not,
+    ACTIONS(221), 1,
+      anon_sym_LBRACE,
+    ACTIONS(223), 1,
+      anon_sym_DQUOTE,
+    ACTIONS(315), 1,
+      sym_integer_literal,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(205), 2,
+      anon_sym_DASH,
+      anon_sym_,
+    ACTIONS(217), 2,
+      anon_sym_true,
+      anon_sym_false,
+    ACTIONS(313), 2,
+      sym_absent,
+      sym_float_literal,
+    STATE(50), 11,
+      sym__expression,
+      sym_binary_operation,
+      sym_call,
+      sym_if_then_else,
+      sym_index_expression,
+      sym_unary_operation,
+      sym__literal,
+      sym_array_literal,
+      sym_boolean_literal,
+      sym_set_literal,
+      sym_string_literal,
+  [2507] = 12,
+    ACTIONS(203), 1,
+      sym_identifier,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
+      anon_sym_LBRACK,
+    ACTIONS(213), 1,
+      anon_sym_not,
+    ACTIONS(221), 1,
+      anon_sym_LBRACE,
+    ACTIONS(223), 1,
+      anon_sym_DQUOTE,
+    ACTIONS(319), 1,
+      sym_integer_literal,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(205), 2,
+      anon_sym_DASH,
+      anon_sym_,
+    ACTIONS(217), 2,
+      anon_sym_true,
+      anon_sym_false,
+    ACTIONS(317), 2,
+      sym_absent,
+      sym_float_literal,
+    STATE(35), 11,
+      sym__expression,
+      sym_binary_operation,
+      sym_call,
+      sym_if_then_else,
+      sym_index_expression,
+      sym_unary_operation,
+      sym__literal,
+      sym_array_literal,
+      sym_boolean_literal,
+      sym_set_literal,
+      sym_string_literal,
+  [2558] = 12,
+    ACTIONS(203), 1,
+      sym_identifier,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
+      anon_sym_LBRACK,
+    ACTIONS(213), 1,
+      anon_sym_not,
+    ACTIONS(221), 1,
+      anon_sym_LBRACE,
+    ACTIONS(223), 1,
+      anon_sym_DQUOTE,
+    ACTIONS(323), 1,
+      sym_integer_literal,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(205), 2,
+      anon_sym_DASH,
+      anon_sym_,
+    ACTIONS(217), 2,
+      anon_sym_true,
+      anon_sym_false,
+    ACTIONS(321), 2,
+      sym_absent,
+      sym_float_literal,
+    STATE(39), 11,
+      sym__expression,
+      sym_binary_operation,
+      sym_call,
+      sym_if_then_else,
+      sym_index_expression,
+      sym_unary_operation,
+      sym__literal,
+      sym_array_literal,
+      sym_boolean_literal,
+      sym_set_literal,
+      sym_string_literal,
+  [2609] = 12,
+    ACTIONS(203), 1,
+      sym_identifier,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
+      anon_sym_LBRACK,
+    ACTIONS(213), 1,
+      anon_sym_not,
+    ACTIONS(221), 1,
+      anon_sym_LBRACE,
+    ACTIONS(223), 1,
+      anon_sym_DQUOTE,
+    ACTIONS(327), 1,
+      sym_integer_literal,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(205), 2,
+      anon_sym_DASH,
+      anon_sym_,
+    ACTIONS(217), 2,
+      anon_sym_true,
+      anon_sym_false,
+    ACTIONS(325), 2,
+      sym_absent,
+      sym_float_literal,
+    STATE(6), 11,
+      sym__expression,
+      sym_binary_operation,
+      sym_call,
+      sym_if_then_else,
+      sym_index_expression,
+      sym_unary_operation,
+      sym__literal,
+      sym_array_literal,
+      sym_boolean_literal,
+      sym_set_literal,
+      sym_string_literal,
+  [2660] = 12,
+    ACTIONS(203), 1,
+      sym_identifier,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
+      anon_sym_LBRACK,
+    ACTIONS(213), 1,
+      anon_sym_not,
+    ACTIONS(221), 1,
+      anon_sym_LBRACE,
+    ACTIONS(223), 1,
+      anon_sym_DQUOTE,
+    ACTIONS(331), 1,
+      sym_integer_literal,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(205), 2,
+      anon_sym_DASH,
+      anon_sym_,
+    ACTIONS(217), 2,
+      anon_sym_true,
+      anon_sym_false,
+    ACTIONS(329), 2,
+      sym_absent,
+      sym_float_literal,
+    STATE(36), 11,
+      sym__expression,
+      sym_binary_operation,
+      sym_call,
+      sym_if_then_else,
+      sym_index_expression,
+      sym_unary_operation,
+      sym__literal,
+      sym_array_literal,
+      sym_boolean_literal,
+      sym_set_literal,
+      sym_string_literal,
+  [2711] = 12,
+    ACTIONS(203), 1,
+      sym_identifier,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
+      anon_sym_LBRACK,
+    ACTIONS(213), 1,
+      anon_sym_not,
+    ACTIONS(221), 1,
+      anon_sym_LBRACE,
+    ACTIONS(223), 1,
+      anon_sym_DQUOTE,
+    ACTIONS(335), 1,
+      sym_integer_literal,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(205), 2,
+      anon_sym_DASH,
+      anon_sym_,
+    ACTIONS(217), 2,
+      anon_sym_true,
+      anon_sym_false,
+    ACTIONS(333), 2,
+      sym_absent,
+      sym_float_literal,
+    STATE(48), 11,
+      sym__expression,
+      sym_binary_operation,
+      sym_call,
+      sym_if_then_else,
+      sym_index_expression,
+      sym_unary_operation,
+      sym__literal,
+      sym_array_literal,
+      sym_boolean_literal,
+      sym_set_literal,
+      sym_string_literal,
+  [2762] = 12,
+    ACTIONS(203), 1,
+      sym_identifier,
+    ACTIONS(209), 1,
+      anon_sym_if,
+    ACTIONS(211), 1,
+      anon_sym_LBRACK,
+    ACTIONS(213), 1,
+      anon_sym_not,
+    ACTIONS(221), 1,
+      anon_sym_LBRACE,
+    ACTIONS(223), 1,
+      anon_sym_DQUOTE,
+    ACTIONS(339), 1,
+      sym_integer_literal,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(205), 2,
+      anon_sym_DASH,
+      anon_sym_,
+    ACTIONS(217), 2,
+      anon_sym_true,
+      anon_sym_false,
+    ACTIONS(337), 2,
+      sym_absent,
+      sym_float_literal,
+    STATE(47), 11,
+      sym__expression,
+      sym_binary_operation,
+      sym_call,
+      sym_if_then_else,
+      sym_index_expression,
+      sym_unary_operation,
+      sym__literal,
+      sym_array_literal,
+      sym_boolean_literal,
+      sym_set_literal,
+      sym_string_literal,
+  [2813] = 3,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(341), 6,
+      anon_sym_if,
       anon_sym_not,
       anon_sym_true,
       anon_sym_false,
       sym_integer_literal,
       sym_identifier,
-    ACTIONS(143), 10,
+    ACTIONS(177), 10,
       anon_sym_DASH,
       anon_sym_RPAREN,
       anon_sym_LBRACK,
@@ -3912,122 +5152,146 @@ static uint16_t ts_small_parse_table[] = {
       anon_sym_LBRACE,
       anon_sym_RBRACE,
       anon_sym_DQUOTE,
-  [1271] = 5,
-    ACTIONS(280), 1,
+  [2838] = 5,
+    ACTIONS(343), 1,
       ts_builtin_sym_end,
-    ACTIONS(282), 1,
+    ACTIONS(345), 1,
       sym_identifier,
-    STATE(66), 1,
+    STATE(82), 1,
       aux_sym_source_file_repeat1,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    STATE(77), 2,
+    STATE(94), 2,
       sym__items,
       sym_assignment_item,
-  [1289] = 5,
+  [2856] = 5,
     ACTIONS(7), 1,
       sym_identifier,
-    ACTIONS(285), 1,
+    ACTIONS(348), 1,
       ts_builtin_sym_end,
-    STATE(66), 1,
+    STATE(82), 1,
       aux_sym_source_file_repeat1,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    STATE(74), 2,
+    STATE(91), 2,
       sym__items,
       sym_assignment_item,
-  [1307] = 4,
-    ACTIONS(287), 1,
-      anon_sym_DQUOTE,
-    STATE(70), 1,
-      aux_sym_string_literal_repeat1,
-    ACTIONS(289), 2,
-      aux_sym_string_literal_token1,
-      sym_escape_sequence,
-    ACTIONS(291), 2,
+  [2874] = 5,
+    ACTIONS(131), 1,
+      anon_sym_elseif,
+    ACTIONS(350), 1,
+      anon_sym_else,
+    ACTIONS(352), 1,
+      anon_sym_endif,
+    STATE(86), 1,
+      aux_sym_if_then_else_repeat1,
+    ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-  [1322] = 4,
-    ACTIONS(293), 1,
+  [2891] = 4,
+    ACTIONS(354), 1,
       anon_sym_DQUOTE,
-    STATE(68), 1,
+    STATE(88), 1,
       aux_sym_string_literal_repeat1,
-    ACTIONS(291), 2,
-      sym_line_comment,
-      sym_block_comment,
-    ACTIONS(295), 2,
+    ACTIONS(356), 2,
       aux_sym_string_literal_token1,
       sym_escape_sequence,
-  [1337] = 4,
-    ACTIONS(297), 1,
-      anon_sym_DQUOTE,
-    STATE(70), 1,
-      aux_sym_string_literal_repeat1,
-    ACTIONS(291), 2,
+    ACTIONS(358), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(299), 2,
+  [2906] = 5,
+    ACTIONS(360), 1,
+      anon_sym_elseif,
+    ACTIONS(363), 1,
+      anon_sym_else,
+    ACTIONS(365), 1,
+      anon_sym_endif,
+    STATE(86), 1,
+      aux_sym_if_then_else_repeat1,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+  [2923] = 4,
+    ACTIONS(367), 1,
+      anon_sym_DQUOTE,
+    STATE(85), 1,
+      aux_sym_string_literal_repeat1,
+    ACTIONS(358), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(369), 2,
       aux_sym_string_literal_token1,
       sym_escape_sequence,
-  [1352] = 4,
-    ACTIONS(115), 1,
-      anon_sym_COMMA,
-    ACTIONS(302), 1,
+  [2938] = 4,
+    ACTIONS(371), 1,
+      anon_sym_DQUOTE,
+    STATE(88), 1,
+      aux_sym_string_literal_repeat1,
+    ACTIONS(358), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(373), 2,
+      aux_sym_string_literal_token1,
+      sym_escape_sequence,
+  [2953] = 4,
+    ACTIONS(149), 1,
       anon_sym_RBRACK,
-    STATE(72), 1,
+    ACTIONS(376), 1,
+      anon_sym_COMMA,
+    STATE(89), 1,
       aux_sym_index_expression_repeat1,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-  [1366] = 4,
-    ACTIONS(125), 1,
-      anon_sym_RBRACK,
-    ACTIONS(304), 1,
+  [2967] = 4,
+    ACTIONS(141), 1,
       anon_sym_COMMA,
-    STATE(72), 1,
+    ACTIONS(379), 1,
+      anon_sym_RBRACK,
+    STATE(89), 1,
       aux_sym_index_expression_repeat1,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-  [1380] = 2,
+  [2981] = 3,
+    ACTIONS(381), 1,
+      ts_builtin_sym_end,
+    ACTIONS(383), 1,
+      anon_sym_SEMI,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-    ACTIONS(280), 2,
+  [2992] = 2,
+    ACTIONS(3), 2,
+      sym_line_comment,
+      sym_block_comment,
+    ACTIONS(343), 2,
       ts_builtin_sym_end,
       sym_identifier,
-  [1389] = 3,
-    ACTIONS(307), 1,
+  [3001] = 3,
+    ACTIONS(348), 1,
       ts_builtin_sym_end,
-    ACTIONS(309), 1,
+    ACTIONS(383), 1,
       anon_sym_SEMI,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-  [1400] = 3,
-    ACTIONS(285), 1,
-      ts_builtin_sym_end,
-    ACTIONS(309), 1,
+  [3012] = 2,
+    ACTIONS(383), 1,
       anon_sym_SEMI,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-  [1411] = 2,
-    ACTIONS(311), 1,
+  [3020] = 2,
+    ACTIONS(385), 1,
       anon_sym_EQ,
     ACTIONS(3), 2,
       sym_line_comment,
       sym_block_comment,
-  [1419] = 2,
-    ACTIONS(309), 1,
-      anon_sym_SEMI,
-    ACTIONS(3), 2,
-      sym_line_comment,
-      sym_block_comment,
-  [1427] = 2,
-    ACTIONS(313), 1,
+  [3028] = 2,
+    ACTIONS(387), 1,
       ts_builtin_sym_end,
     ACTIONS(3), 2,
       sym_line_comment,
@@ -4035,45 +5299,68 @@ static uint16_t ts_small_parse_table[] = {
 };
 
 static uint32_t ts_small_parse_table_map[] = {
-  [SMALL_STATE(40)] = 0,
-  [SMALL_STATE(41)] = 75,
-  [SMALL_STATE(42)] = 130,
-  [SMALL_STATE(43)] = 183,
-  [SMALL_STATE(44)] = 236,
-  [SMALL_STATE(45)] = 289,
-  [SMALL_STATE(46)] = 342,
-  [SMALL_STATE(47)] = 395,
-  [SMALL_STATE(48)] = 448,
-  [SMALL_STATE(49)] = 495,
-  [SMALL_STATE(50)] = 542,
-  [SMALL_STATE(51)] = 589,
-  [SMALL_STATE(52)] = 636,
-  [SMALL_STATE(53)] = 683,
-  [SMALL_STATE(54)] = 730,
-  [SMALL_STATE(55)] = 777,
-  [SMALL_STATE(56)] = 824,
-  [SMALL_STATE(57)] = 871,
-  [SMALL_STATE(58)] = 918,
-  [SMALL_STATE(59)] = 965,
-  [SMALL_STATE(60)] = 1012,
-  [SMALL_STATE(61)] = 1059,
-  [SMALL_STATE(62)] = 1106,
-  [SMALL_STATE(63)] = 1153,
-  [SMALL_STATE(64)] = 1200,
-  [SMALL_STATE(65)] = 1247,
-  [SMALL_STATE(66)] = 1271,
-  [SMALL_STATE(67)] = 1289,
-  [SMALL_STATE(68)] = 1307,
-  [SMALL_STATE(69)] = 1322,
-  [SMALL_STATE(70)] = 1337,
-  [SMALL_STATE(71)] = 1352,
-  [SMALL_STATE(72)] = 1366,
-  [SMALL_STATE(73)] = 1380,
-  [SMALL_STATE(74)] = 1389,
-  [SMALL_STATE(75)] = 1400,
-  [SMALL_STATE(76)] = 1411,
-  [SMALL_STATE(77)] = 1419,
-  [SMALL_STATE(78)] = 1427,
+  [SMALL_STATE(35)] = 0,
+  [SMALL_STATE(36)] = 84,
+  [SMALL_STATE(37)] = 163,
+  [SMALL_STATE(38)] = 244,
+  [SMALL_STATE(39)] = 322,
+  [SMALL_STATE(40)] = 398,
+  [SMALL_STATE(41)] = 476,
+  [SMALL_STATE(42)] = 554,
+  [SMALL_STATE(43)] = 632,
+  [SMALL_STATE(44)] = 708,
+  [SMALL_STATE(45)] = 786,
+  [SMALL_STATE(46)] = 864,
+  [SMALL_STATE(47)] = 939,
+  [SMALL_STATE(48)] = 1014,
+  [SMALL_STATE(49)] = 1089,
+  [SMALL_STATE(50)] = 1164,
+  [SMALL_STATE(51)] = 1239,
+  [SMALL_STATE(52)] = 1298,
+  [SMALL_STATE(53)] = 1355,
+  [SMALL_STATE(54)] = 1412,
+  [SMALL_STATE(55)] = 1469,
+  [SMALL_STATE(56)] = 1526,
+  [SMALL_STATE(57)] = 1583,
+  [SMALL_STATE(58)] = 1640,
+  [SMALL_STATE(59)] = 1691,
+  [SMALL_STATE(60)] = 1742,
+  [SMALL_STATE(61)] = 1793,
+  [SMALL_STATE(62)] = 1844,
+  [SMALL_STATE(63)] = 1895,
+  [SMALL_STATE(64)] = 1946,
+  [SMALL_STATE(65)] = 1997,
+  [SMALL_STATE(66)] = 2048,
+  [SMALL_STATE(67)] = 2099,
+  [SMALL_STATE(68)] = 2150,
+  [SMALL_STATE(69)] = 2201,
+  [SMALL_STATE(70)] = 2252,
+  [SMALL_STATE(71)] = 2303,
+  [SMALL_STATE(72)] = 2354,
+  [SMALL_STATE(73)] = 2405,
+  [SMALL_STATE(74)] = 2456,
+  [SMALL_STATE(75)] = 2507,
+  [SMALL_STATE(76)] = 2558,
+  [SMALL_STATE(77)] = 2609,
+  [SMALL_STATE(78)] = 2660,
+  [SMALL_STATE(79)] = 2711,
+  [SMALL_STATE(80)] = 2762,
+  [SMALL_STATE(81)] = 2813,
+  [SMALL_STATE(82)] = 2838,
+  [SMALL_STATE(83)] = 2856,
+  [SMALL_STATE(84)] = 2874,
+  [SMALL_STATE(85)] = 2891,
+  [SMALL_STATE(86)] = 2906,
+  [SMALL_STATE(87)] = 2923,
+  [SMALL_STATE(88)] = 2938,
+  [SMALL_STATE(89)] = 2953,
+  [SMALL_STATE(90)] = 2967,
+  [SMALL_STATE(91)] = 2981,
+  [SMALL_STATE(92)] = 2992,
+  [SMALL_STATE(93)] = 3001,
+  [SMALL_STATE(94)] = 3012,
+  [SMALL_STATE(95)] = 3020,
+  [SMALL_STATE(96)] = 3028,
 };
 
 static TSParseActionEntry ts_parse_actions[] = {
@@ -4081,154 +5368,190 @@ static TSParseActionEntry ts_parse_actions[] = {
   [1] = {.entry = {.count = 1, .reusable = false}}, RECOVER(),
   [3] = {.entry = {.count = 1, .reusable = true}}, SHIFT_EXTRA(),
   [5] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_source_file, 0),
-  [7] = {.entry = {.count = 1, .reusable = true}}, SHIFT(76),
+  [7] = {.entry = {.count = 1, .reusable = true}}, SHIFT(95),
   [9] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym__expression, 1),
   [11] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym__expression, 1),
-  [13] = {.entry = {.count = 1, .reusable = true}}, SHIFT(47),
+  [13] = {.entry = {.count = 1, .reusable = true}}, SHIFT(52),
   [15] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_binary_operation, 3, .production_id = 4),
   [17] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_binary_operation, 3, .production_id = 4),
-  [19] = {.entry = {.count = 1, .reusable = true}}, SHIFT(56),
-  [21] = {.entry = {.count = 1, .reusable = true}}, SHIFT(58),
-  [23] = {.entry = {.count = 1, .reusable = true}}, SHIFT(59),
-  [25] = {.entry = {.count = 1, .reusable = true}}, SHIFT(54),
-  [27] = {.entry = {.count = 1, .reusable = false}}, SHIFT(61),
-  [29] = {.entry = {.count = 1, .reusable = true}}, SHIFT(61),
-  [31] = {.entry = {.count = 1, .reusable = true}}, SHIFT(62),
-  [33] = {.entry = {.count = 1, .reusable = false}}, SHIFT(62),
-  [35] = {.entry = {.count = 1, .reusable = true}}, SHIFT(60),
-  [37] = {.entry = {.count = 1, .reusable = true}}, SHIFT(51),
-  [39] = {.entry = {.count = 1, .reusable = true}}, SHIFT(63),
-  [41] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_index_expression, 5, .production_id = 8),
-  [43] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_index_expression, 5, .production_id = 8),
-  [45] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_index_expression, 4, .production_id = 6),
-  [47] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_index_expression, 4, .production_id = 6),
-  [49] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_call, 4, .production_id = 5),
-  [51] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_call, 4, .production_id = 5),
-  [53] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_set_literal, 4),
-  [55] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_set_literal, 4),
-  [57] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_array_literal, 4),
-  [59] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_array_literal, 4),
-  [61] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_boolean_literal, 1),
-  [63] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_boolean_literal, 1),
-  [65] = {.entry = {.count = 1, .reusable = false}}, SHIFT(53),
-  [67] = {.entry = {.count = 1, .reusable = true}}, SHIFT(53),
-  [69] = {.entry = {.count = 1, .reusable = true}}, SHIFT(52),
-  [71] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_unary_operation, 2, .production_id = 2),
-  [73] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_unary_operation, 2, .production_id = 2),
-  [75] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_array_literal, 2),
-  [77] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_array_literal, 2),
-  [79] = {.entry = {.count = 1, .reusable = true}}, SHIFT(55),
-  [81] = {.entry = {.count = 1, .reusable = true}}, SHIFT(49),
-  [83] = {.entry = {.count = 1, .reusable = false}}, SHIFT(49),
-  [85] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_set_literal, 2),
-  [87] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_set_literal, 2),
-  [89] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_call, 3, .production_id = 3),
-  [91] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_call, 3, .production_id = 3),
-  [93] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_string_literal, 2),
-  [95] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_string_literal, 2),
-  [97] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_string_literal, 3),
-  [99] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_string_literal, 3),
-  [101] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_set_literal, 3),
-  [103] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_set_literal, 3),
-  [105] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_array_literal, 3),
-  [107] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_array_literal, 3),
-  [109] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_call, 5, .production_id = 7),
-  [111] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_call, 5, .production_id = 7),
-  [113] = {.entry = {.count = 1, .reusable = true}}, SHIFT(48),
-  [115] = {.entry = {.count = 1, .reusable = true}}, SHIFT(50),
-  [117] = {.entry = {.count = 1, .reusable = true}}, SHIFT(6),
+  [19] = {.entry = {.count = 1, .reusable = true}}, SHIFT(72),
+  [21] = {.entry = {.count = 1, .reusable = true}}, SHIFT(69),
+  [23] = {.entry = {.count = 1, .reusable = true}}, SHIFT(71),
+  [25] = {.entry = {.count = 1, .reusable = true}}, SHIFT(73),
+  [27] = {.entry = {.count = 1, .reusable = false}}, SHIFT(67),
+  [29] = {.entry = {.count = 1, .reusable = true}}, SHIFT(67),
+  [31] = {.entry = {.count = 1, .reusable = true}}, SHIFT(68),
+  [33] = {.entry = {.count = 1, .reusable = false}}, SHIFT(68),
+  [35] = {.entry = {.count = 1, .reusable = true}}, SHIFT(70),
+  [37] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_if_then_else, 6),
+  [39] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_if_then_else, 6),
+  [41] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_unary_operation, 2, .production_id = 2),
+  [43] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_unary_operation, 2, .production_id = 2),
+  [45] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_call, 5, .production_id = 7),
+  [47] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_call, 5, .production_id = 7),
+  [49] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_if_then_else, 5),
+  [51] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_if_then_else, 5),
+  [53] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_index_expression, 4, .production_id = 6),
+  [55] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_index_expression, 4, .production_id = 6),
+  [57] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_call, 4, .production_id = 5),
+  [59] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_call, 4, .production_id = 5),
+  [61] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_set_literal, 4),
+  [63] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_set_literal, 4),
+  [65] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_array_literal, 4),
+  [67] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_array_literal, 4),
+  [69] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_boolean_literal, 1),
+  [71] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_boolean_literal, 1),
+  [73] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_set_literal, 3),
+  [75] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_set_literal, 3),
+  [77] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_string_literal, 3),
+  [79] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_string_literal, 3),
+  [81] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_if_then_else, 8),
+  [83] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_if_then_else, 8),
+  [85] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_array_literal, 3),
+  [87] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_array_literal, 3),
+  [89] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_index_expression, 5, .production_id = 8),
+  [91] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_index_expression, 5, .production_id = 8),
+  [93] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_if_then_else, 7),
+  [95] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_if_then_else, 7),
+  [97] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_set_literal, 2),
+  [99] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_set_literal, 2),
+  [101] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_call, 3, .production_id = 3),
+  [103] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_call, 3, .production_id = 3),
+  [105] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_string_literal, 2),
+  [107] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_string_literal, 2),
+  [109] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_array_literal, 2),
+  [111] = {.entry = {.count = 1, .reusable = false}}, REDUCE(sym_array_literal, 2),
+  [113] = {.entry = {.count = 1, .reusable = true}}, SHIFT(58),
+  [115] = {.entry = {.count = 1, .reusable = true}}, SHIFT(60),
+  [117] = {.entry = {.count = 1, .reusable = false}}, SHIFT(65),
   [119] = {.entry = {.count = 1, .reusable = true}}, SHIFT(65),
-  [121] = {.entry = {.count = 1, .reusable = true}}, SHIFT(30),
-  [123] = {.entry = {.count = 1, .reusable = true}}, SHIFT(28),
-  [125] = {.entry = {.count = 1, .reusable = true}}, REDUCE(aux_sym_index_expression_repeat1, 2),
-  [127] = {.entry = {.count = 1, .reusable = true}}, SHIFT(7),
-  [129] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_assignment_item, 3, .production_id = 1),
-  [131] = {.entry = {.count = 1, .reusable = true}}, SHIFT(27),
-  [133] = {.entry = {.count = 1, .reusable = true}}, SHIFT(9),
+  [121] = {.entry = {.count = 1, .reusable = true}}, SHIFT(61),
+  [123] = {.entry = {.count = 1, .reusable = true}}, SHIFT(62),
+  [125] = {.entry = {.count = 1, .reusable = true}}, SHIFT(63),
+  [127] = {.entry = {.count = 1, .reusable = false}}, SHIFT(63),
+  [129] = {.entry = {.count = 1, .reusable = true}}, SHIFT(64),
+  [131] = {.entry = {.count = 1, .reusable = true}}, SHIFT(79),
+  [133] = {.entry = {.count = 1, .reusable = false}}, SHIFT(80),
   [135] = {.entry = {.count = 1, .reusable = true}}, SHIFT(8),
-  [137] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(2),
-  [140] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(64),
-  [143] = {.entry = {.count = 1, .reusable = true}}, REDUCE(aux_sym_call_repeat1, 2),
-  [145] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(44),
-  [148] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(64),
-  [151] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(40),
-  [154] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(13),
-  [157] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(40),
-  [160] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(45),
-  [163] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(69),
-  [166] = {.entry = {.count = 1, .reusable = false}}, SHIFT(2),
-  [168] = {.entry = {.count = 1, .reusable = true}}, SHIFT(64),
-  [170] = {.entry = {.count = 1, .reusable = true}}, SHIFT(44),
-  [172] = {.entry = {.count = 1, .reusable = false}}, SHIFT(64),
-  [174] = {.entry = {.count = 1, .reusable = true}}, SHIFT(39),
-  [176] = {.entry = {.count = 1, .reusable = false}}, SHIFT(13),
-  [178] = {.entry = {.count = 1, .reusable = false}}, SHIFT(39),
-  [180] = {.entry = {.count = 1, .reusable = true}}, SHIFT(45),
-  [182] = {.entry = {.count = 1, .reusable = true}}, SHIFT(69),
-  [184] = {.entry = {.count = 1, .reusable = true}}, SHIFT(38),
-  [186] = {.entry = {.count = 1, .reusable = false}}, SHIFT(38),
-  [188] = {.entry = {.count = 1, .reusable = true}}, SHIFT(19),
-  [190] = {.entry = {.count = 1, .reusable = true}}, SHIFT(33),
-  [192] = {.entry = {.count = 1, .reusable = false}}, SHIFT(33),
-  [194] = {.entry = {.count = 1, .reusable = true}}, SHIFT(37),
-  [196] = {.entry = {.count = 1, .reusable = false}}, SHIFT(37),
-  [198] = {.entry = {.count = 1, .reusable = true}}, SHIFT(22),
-  [200] = {.entry = {.count = 1, .reusable = true}}, SHIFT(32),
-  [202] = {.entry = {.count = 1, .reusable = false}}, SHIFT(32),
-  [204] = {.entry = {.count = 1, .reusable = true}}, SHIFT(24),
-  [206] = {.entry = {.count = 1, .reusable = true}}, SHIFT(35),
-  [208] = {.entry = {.count = 1, .reusable = false}}, SHIFT(35),
-  [210] = {.entry = {.count = 1, .reusable = true}}, SHIFT(21),
-  [212] = {.entry = {.count = 1, .reusable = false}}, SHIFT(21),
-  [214] = {.entry = {.count = 1, .reusable = true}}, SHIFT(20),
-  [216] = {.entry = {.count = 1, .reusable = false}}, SHIFT(20),
-  [218] = {.entry = {.count = 1, .reusable = true}}, SHIFT(34),
-  [220] = {.entry = {.count = 1, .reusable = false}}, SHIFT(34),
-  [222] = {.entry = {.count = 1, .reusable = true}}, SHIFT(10),
-  [224] = {.entry = {.count = 1, .reusable = false}}, SHIFT(10),
-  [226] = {.entry = {.count = 1, .reusable = true}}, SHIFT(3),
-  [228] = {.entry = {.count = 1, .reusable = false}}, SHIFT(3),
-  [230] = {.entry = {.count = 1, .reusable = true}}, SHIFT(23),
-  [232] = {.entry = {.count = 1, .reusable = false}}, SHIFT(23),
-  [234] = {.entry = {.count = 1, .reusable = true}}, SHIFT(14),
-  [236] = {.entry = {.count = 1, .reusable = false}}, SHIFT(14),
-  [238] = {.entry = {.count = 1, .reusable = true}}, SHIFT(17),
-  [240] = {.entry = {.count = 1, .reusable = false}}, SHIFT(17),
-  [242] = {.entry = {.count = 1, .reusable = true}}, SHIFT(16),
-  [244] = {.entry = {.count = 1, .reusable = false}}, SHIFT(16),
-  [246] = {.entry = {.count = 1, .reusable = true}}, SHIFT(36),
-  [248] = {.entry = {.count = 1, .reusable = false}}, SHIFT(36),
-  [250] = {.entry = {.count = 1, .reusable = true}}, SHIFT(4),
-  [252] = {.entry = {.count = 1, .reusable = false}}, SHIFT(4),
-  [254] = {.entry = {.count = 1, .reusable = true}}, SHIFT(15),
-  [256] = {.entry = {.count = 1, .reusable = false}}, SHIFT(15),
-  [258] = {.entry = {.count = 1, .reusable = true}}, SHIFT(11),
-  [260] = {.entry = {.count = 1, .reusable = false}}, SHIFT(11),
-  [262] = {.entry = {.count = 1, .reusable = true}}, SHIFT(12),
-  [264] = {.entry = {.count = 1, .reusable = false}}, SHIFT(12),
-  [266] = {.entry = {.count = 1, .reusable = true}}, SHIFT(29),
-  [268] = {.entry = {.count = 1, .reusable = false}}, SHIFT(29),
-  [270] = {.entry = {.count = 1, .reusable = true}}, SHIFT(31),
-  [272] = {.entry = {.count = 1, .reusable = false}}, SHIFT(31),
-  [274] = {.entry = {.count = 1, .reusable = true}}, SHIFT(18),
-  [276] = {.entry = {.count = 1, .reusable = false}}, SHIFT(18),
-  [278] = {.entry = {.count = 1, .reusable = false}}, REDUCE(aux_sym_call_repeat1, 2),
-  [280] = {.entry = {.count = 1, .reusable = true}}, REDUCE(aux_sym_source_file_repeat1, 2),
-  [282] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_source_file_repeat1, 2), SHIFT_REPEAT(76),
-  [285] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_source_file, 1),
-  [287] = {.entry = {.count = 1, .reusable = false}}, SHIFT(26),
-  [289] = {.entry = {.count = 1, .reusable = true}}, SHIFT(70),
-  [291] = {.entry = {.count = 1, .reusable = false}}, SHIFT_EXTRA(),
-  [293] = {.entry = {.count = 1, .reusable = false}}, SHIFT(25),
-  [295] = {.entry = {.count = 1, .reusable = true}}, SHIFT(68),
-  [297] = {.entry = {.count = 1, .reusable = false}}, REDUCE(aux_sym_string_literal_repeat1, 2),
-  [299] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_string_literal_repeat1, 2), SHIFT_REPEAT(70),
-  [302] = {.entry = {.count = 1, .reusable = true}}, SHIFT(5),
-  [304] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_index_expression_repeat1, 2), SHIFT_REPEAT(50),
-  [307] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_source_file, 2),
-  [309] = {.entry = {.count = 1, .reusable = true}}, SHIFT(73),
-  [311] = {.entry = {.count = 1, .reusable = true}}, SHIFT(57),
-  [313] = {.entry = {.count = 1, .reusable = true}},  ACCEPT_INPUT(),
+  [137] = {.entry = {.count = 1, .reusable = true}}, REDUCE(aux_sym_if_then_else_repeat1, 4),
+  [139] = {.entry = {.count = 1, .reusable = false}}, REDUCE(aux_sym_if_then_else_repeat1, 4),
+  [141] = {.entry = {.count = 1, .reusable = true}}, SHIFT(76),
+  [143] = {.entry = {.count = 1, .reusable = true}}, SHIFT(9),
+  [145] = {.entry = {.count = 1, .reusable = true}}, SHIFT(81),
+  [147] = {.entry = {.count = 1, .reusable = true}}, SHIFT(14),
+  [149] = {.entry = {.count = 1, .reusable = true}}, REDUCE(aux_sym_index_expression_repeat1, 2),
+  [151] = {.entry = {.count = 1, .reusable = true}}, SHIFT(7),
+  [153] = {.entry = {.count = 1, .reusable = true}}, SHIFT(12),
+  [155] = {.entry = {.count = 1, .reusable = true}}, SHIFT(11),
+  [157] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_assignment_item, 3, .production_id = 1),
+  [159] = {.entry = {.count = 1, .reusable = true}}, SHIFT(18),
+  [161] = {.entry = {.count = 1, .reusable = true}}, SHIFT(10),
+  [163] = {.entry = {.count = 1, .reusable = true}}, SHIFT(16),
+  [165] = {.entry = {.count = 1, .reusable = true}}, SHIFT(20),
+  [167] = {.entry = {.count = 1, .reusable = true}}, SHIFT(78),
+  [169] = {.entry = {.count = 1, .reusable = true}}, SHIFT(75),
+  [171] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(2),
+  [174] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(77),
+  [177] = {.entry = {.count = 1, .reusable = true}}, REDUCE(aux_sym_call_repeat1, 2),
+  [179] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(74),
+  [182] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(53),
+  [185] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(77),
+  [188] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(49),
+  [191] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(13),
+  [194] = {.entry = {.count = 2, .reusable = false}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(49),
+  [197] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(54),
+  [200] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_call_repeat1, 2), SHIFT_REPEAT(87),
+  [203] = {.entry = {.count = 1, .reusable = false}}, SHIFT(2),
+  [205] = {.entry = {.count = 1, .reusable = true}}, SHIFT(77),
+  [207] = {.entry = {.count = 1, .reusable = true}}, SHIFT(25),
+  [209] = {.entry = {.count = 1, .reusable = false}}, SHIFT(74),
+  [211] = {.entry = {.count = 1, .reusable = true}}, SHIFT(53),
+  [213] = {.entry = {.count = 1, .reusable = false}}, SHIFT(77),
+  [215] = {.entry = {.count = 1, .reusable = true}}, SHIFT(45),
+  [217] = {.entry = {.count = 1, .reusable = false}}, SHIFT(13),
+  [219] = {.entry = {.count = 1, .reusable = false}}, SHIFT(45),
+  [221] = {.entry = {.count = 1, .reusable = true}}, SHIFT(54),
+  [223] = {.entry = {.count = 1, .reusable = true}}, SHIFT(87),
+  [225] = {.entry = {.count = 1, .reusable = true}}, SHIFT(28),
+  [227] = {.entry = {.count = 1, .reusable = true}}, SHIFT(44),
+  [229] = {.entry = {.count = 1, .reusable = false}}, SHIFT(44),
+  [231] = {.entry = {.count = 1, .reusable = true}}, SHIFT(38),
+  [233] = {.entry = {.count = 1, .reusable = false}}, SHIFT(38),
+  [235] = {.entry = {.count = 1, .reusable = true}}, SHIFT(24),
+  [237] = {.entry = {.count = 1, .reusable = true}}, SHIFT(40),
+  [239] = {.entry = {.count = 1, .reusable = false}}, SHIFT(40),
+  [241] = {.entry = {.count = 1, .reusable = true}}, SHIFT(42),
+  [243] = {.entry = {.count = 1, .reusable = false}}, SHIFT(42),
+  [245] = {.entry = {.count = 1, .reusable = true}}, SHIFT(41),
+  [247] = {.entry = {.count = 1, .reusable = false}}, SHIFT(41),
+  [249] = {.entry = {.count = 1, .reusable = true}}, SHIFT(4),
+  [251] = {.entry = {.count = 1, .reusable = false}}, SHIFT(4),
+  [253] = {.entry = {.count = 1, .reusable = true}}, SHIFT(46),
+  [255] = {.entry = {.count = 1, .reusable = false}}, SHIFT(46),
+  [257] = {.entry = {.count = 1, .reusable = true}}, SHIFT(29),
+  [259] = {.entry = {.count = 1, .reusable = false}}, SHIFT(29),
+  [261] = {.entry = {.count = 1, .reusable = true}}, SHIFT(30),
+  [263] = {.entry = {.count = 1, .reusable = false}}, SHIFT(30),
+  [265] = {.entry = {.count = 1, .reusable = true}}, SHIFT(31),
+  [267] = {.entry = {.count = 1, .reusable = false}}, SHIFT(31),
+  [269] = {.entry = {.count = 1, .reusable = true}}, SHIFT(32),
+  [271] = {.entry = {.count = 1, .reusable = false}}, SHIFT(32),
+  [273] = {.entry = {.count = 1, .reusable = true}}, SHIFT(33),
+  [275] = {.entry = {.count = 1, .reusable = false}}, SHIFT(33),
+  [277] = {.entry = {.count = 1, .reusable = true}}, SHIFT(34),
+  [279] = {.entry = {.count = 1, .reusable = false}}, SHIFT(34),
+  [281] = {.entry = {.count = 1, .reusable = true}}, SHIFT(43),
+  [283] = {.entry = {.count = 1, .reusable = false}}, SHIFT(43),
+  [285] = {.entry = {.count = 1, .reusable = true}}, SHIFT(22),
+  [287] = {.entry = {.count = 1, .reusable = false}}, SHIFT(22),
+  [289] = {.entry = {.count = 1, .reusable = true}}, SHIFT(21),
+  [291] = {.entry = {.count = 1, .reusable = false}}, SHIFT(21),
+  [293] = {.entry = {.count = 1, .reusable = true}}, SHIFT(37),
+  [295] = {.entry = {.count = 1, .reusable = false}}, SHIFT(37),
+  [297] = {.entry = {.count = 1, .reusable = true}}, SHIFT(3),
+  [299] = {.entry = {.count = 1, .reusable = false}}, SHIFT(3),
+  [301] = {.entry = {.count = 1, .reusable = true}}, SHIFT(26),
+  [303] = {.entry = {.count = 1, .reusable = false}}, SHIFT(26),
+  [305] = {.entry = {.count = 1, .reusable = true}}, SHIFT(17),
+  [307] = {.entry = {.count = 1, .reusable = false}}, SHIFT(17),
+  [309] = {.entry = {.count = 1, .reusable = true}}, SHIFT(23),
+  [311] = {.entry = {.count = 1, .reusable = false}}, SHIFT(23),
+  [313] = {.entry = {.count = 1, .reusable = true}}, SHIFT(50),
+  [315] = {.entry = {.count = 1, .reusable = false}}, SHIFT(50),
+  [317] = {.entry = {.count = 1, .reusable = true}}, SHIFT(35),
+  [319] = {.entry = {.count = 1, .reusable = false}}, SHIFT(35),
+  [321] = {.entry = {.count = 1, .reusable = true}}, SHIFT(39),
+  [323] = {.entry = {.count = 1, .reusable = false}}, SHIFT(39),
+  [325] = {.entry = {.count = 1, .reusable = true}}, SHIFT(6),
+  [327] = {.entry = {.count = 1, .reusable = false}}, SHIFT(6),
+  [329] = {.entry = {.count = 1, .reusable = true}}, SHIFT(36),
+  [331] = {.entry = {.count = 1, .reusable = false}}, SHIFT(36),
+  [333] = {.entry = {.count = 1, .reusable = true}}, SHIFT(48),
+  [335] = {.entry = {.count = 1, .reusable = false}}, SHIFT(48),
+  [337] = {.entry = {.count = 1, .reusable = true}}, SHIFT(47),
+  [339] = {.entry = {.count = 1, .reusable = false}}, SHIFT(47),
+  [341] = {.entry = {.count = 1, .reusable = false}}, REDUCE(aux_sym_call_repeat1, 2),
+  [343] = {.entry = {.count = 1, .reusable = true}}, REDUCE(aux_sym_source_file_repeat1, 2),
+  [345] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_source_file_repeat1, 2), SHIFT_REPEAT(95),
+  [348] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_source_file, 1),
+  [350] = {.entry = {.count = 1, .reusable = false}}, SHIFT(59),
+  [352] = {.entry = {.count = 1, .reusable = true}}, SHIFT(5),
+  [354] = {.entry = {.count = 1, .reusable = false}}, SHIFT(15),
+  [356] = {.entry = {.count = 1, .reusable = true}}, SHIFT(88),
+  [358] = {.entry = {.count = 1, .reusable = false}}, SHIFT_EXTRA(),
+  [360] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_if_then_else_repeat1, 2), SHIFT_REPEAT(79),
+  [363] = {.entry = {.count = 1, .reusable = false}}, REDUCE(aux_sym_if_then_else_repeat1, 2),
+  [365] = {.entry = {.count = 1, .reusable = true}}, REDUCE(aux_sym_if_then_else_repeat1, 2),
+  [367] = {.entry = {.count = 1, .reusable = false}}, SHIFT(27),
+  [369] = {.entry = {.count = 1, .reusable = true}}, SHIFT(85),
+  [371] = {.entry = {.count = 1, .reusable = false}}, REDUCE(aux_sym_string_literal_repeat1, 2),
+  [373] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_string_literal_repeat1, 2), SHIFT_REPEAT(88),
+  [376] = {.entry = {.count = 2, .reusable = true}}, REDUCE(aux_sym_index_expression_repeat1, 2), SHIFT_REPEAT(76),
+  [379] = {.entry = {.count = 1, .reusable = true}}, SHIFT(19),
+  [381] = {.entry = {.count = 1, .reusable = true}}, REDUCE(sym_source_file, 2),
+  [383] = {.entry = {.count = 1, .reusable = true}}, SHIFT(92),
+  [385] = {.entry = {.count = 1, .reusable = true}}, SHIFT(66),
+  [387] = {.entry = {.count = 1, .reusable = true}},  ACCEPT_INPUT(),
 };
 
 #ifdef __cplusplus