Dekker1/Gastenboek
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Add comments and optimizing gocode

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This commit is contained in:
Jip J. Dekker 2014-10-12 01:48:32 +02:00
parent 20df2f2a9f
commit cc45805a87
4 changed files with 35 additions and 16 deletions
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2
gastenboek.go
View File

@ -5,6 +5,7 @@ import (
"os/signal"
)
// IT'S A TRAP! (This catches all signals so the program can't be interrupted)
func signalCatcher() {
c := make(chan os.Signal)
signal.Notify(c)
@ -13,6 +14,7 @@ func signalCatcher() {
}
}
// This is where it all starts
func main() {
go signalCatcher()
showMenu()

34
menu.go
View File

@ -10,17 +10,22 @@ import (
)
const (
ascii string = " `sMMMMMMMh:\n.-------..-------- -----------------.`sMMMMMMMd: \n`sNMMMMMhyMMMMMMMM/hdMMMMMMMMMMMMMMhhMMMMMMMd: \n `sNMMMhyMMMMMMMM+MNhhMMMMMMMMMMhhMMMMMMMd: \n `sNMhyMMMMMMMM+MMMNhhMMMMMMy-+ooooooo: \n `ohyMMMMMMMM+MMMMMNhhMMs. \n `........:MMMMMMMNy- \n :MMMMMMMMMNo` \n :MMMMMMMMMMMN: \n :MMMMMMMMMMd: \n :MMMMMMMMd: \n :MMMMMMd: \n :MMMMdhy \n :MMdhNMd \n :dhNMMMd \n `oNMMMMMd \n `+NMMMMMMMd \n `+NMMMMMMMMMd \n `dMMMMMMMMMMMd \n /mMMMMMMMMMd \n /mMMMMMMMd. \n /mMMMMMdyd: \n /mMMMhyMMd: \n /mMhyMMMMd: \n /syMMMMMMd/ "
asciiLen int = 50
tekst string = "Thalia Constitutieborrel Gastenboek\n1) Schrijf een nieuw bericht.\n2) Lees oude berichten."
// ASCII Art of the Thalia Logo
ascii string = " `sMMMMMMMh:\n.-------..-------- -----------------.`sMMMMMMMd: \n`sNMMMMMhyMMMMMMMM/hdMMMMMMMMMMMMMMhhMMMMMMMd: \n `sNMMMhyMMMMMMMM+MNhhMMMMMMMMMMhhMMMMMMMd: \n `sNMhyMMMMMMMM+MMMNhhMMMMMMy-+ooooooo: \n `ohyMMMMMMMM+MMMMMNhhMMs. \n `........:MMMMMMMNy- \n :MMMMMMMMMNo` \n :MMMMMMMMMMMN: \n :MMMMMMMMMMd: \n :MMMMMMMMd: \n :MMMMMMd: \n :MMMMdhy \n :MMdhNMd \n :dhNMMMd \n `oNMMMMMd \n `+NMMMMMMMd \n `+NMMMMMMMMMd \n `dMMMMMMMMMMMd \n /mMMMMMMMMMd \n /mMMMMMMMd. \n /mMMMMMdyd: \n /mMMMhyMMd: \n /mMhyMMMMd: \n /syMMMMMMd/ "
// Width of the ASCII art
asciiLen int = 50
// Menu text
tekst string = "Thalia Constitutieborrel Gastenboek\n1) Schrijf een nieuw bericht.\n2) Lees oude berichten."
)
var (
menu string = ""
menuwidth int = 0
Message string = ""
menu string
menuwidth int
message string
)
// Function that determines the size of the executing terminal
// WARN: Only works if stty is available (So at least linux)
func terminalSize() (width, height int) {
cmd := exec.Command("stty", "size")
cmd.Stdin = os.Stdin
@ -32,18 +37,20 @@ func terminalSize() (width, height int) {
return width, height
}
// Clears the terminal screen
func clear() {
_, height := terminalSize()
fmt.Printf("%v", strings.Repeat("\n", height+1))
}
// Generates a menu string, takes up the whole screen.
func generateMenu() string {
var width, height int = terminalSize()
if menu == "" && width != menuwidth {
menuwidth = width
if width >= asciiLen+4 {
var content []string = strings.Split(ascii, "\n")
var options []string = strings.Split(tekst, "\n")
var content = strings.Split(ascii, "\n")
var options = strings.Split(tekst, "\n")
content = append(content, make([]string, ((height-4)-len(content)-len(options))/2)...)
content = append(content, options...)
@ -51,7 +58,7 @@ func generateMenu() string {
menu += strings.Repeat("-", width-1) + "\n"
for _, value := range content {
var length int = len(value)
var length = len(value)
menu += "|"
menu += strings.Repeat(" ", int(math.Floor(float64((width-length-3)/2.0))))
menu += value
@ -67,11 +74,12 @@ func generateMenu() string {
return menu
}
// Function that keeps the user going!
func showMenu() {
for {
clear()
fmt.Print(generateMenu())
fmt.Println(Message)
fmt.Println(message)
fmt.Print("Maak uw keuze: ")
var i int
@ -79,12 +87,12 @@ func showMenu() {
switch i {
default:
Message = "Was dat een keuze? Ik dacht van niet, probeer maar opnieuw!"
message = "Was dat een keuze? Ik dacht van niet, probeer maar opnieuw!"
case 1:
if makeEntry() {
Message = ""
message = ""
} else {
Message = "Something went terribly wrong! Wat heb je nou weer gedaan??"
message = "Something went terribly wrong! Wat heb je nou weer gedaan??"
}
case 2:
viewEntry()

9
newEntry.go
View File

@ -16,9 +16,10 @@ const (
)
var (
reader *bufio.Reader = bufio.NewReader(os.Stdin)
reader = bufio.NewReader(os.Stdin)
)
// The function that handles the actual content of the message
func msgContent() (string, bool) {
var msg string
@ -42,9 +43,10 @@ S:
return msg, true
}
// The function that handles the signing of a message
func msgSign() (string, bool) {
var sign string
var end int = -1
var end = -1
S:
for {
@ -70,6 +72,8 @@ S:
return sign, true
}
// Creates an files with filename in the current directory
// the content of the file will of course be content.
func writeToFile(filename, content string) bool {
f, err := os.Create(filename)
if err != nil {
@ -91,6 +95,7 @@ func writeToFile(filename, content string) bool {
return true
}
// The coordinating function that calls all the necessary functions
func makeEntry() bool {
clear()

6
viewEntry.go
View File

@ -18,6 +18,7 @@ var (
entries []string
)
// Get the information from entries and format it.
func listFilenames() {
for i, val := range entries {
val = strings.Trim(val, ".txt")
@ -29,6 +30,7 @@ func listFilenames() {
}
}
// Adds a file to entries if it's an actual file
func getFilenames(path string, info os.FileInfo, err error) error {
if !info.IsDir() && info.Name() == path && filepath.Ext(path) == ".txt" {
entries = append(entries, path)
@ -36,6 +38,7 @@ func getFilenames(path string, info os.FileInfo, err error) error {
return nil
}
// A function that works like "less"
func showFile(i int) {
f, openErr := os.Open(entries[i])
if openErr != nil {
@ -52,7 +55,7 @@ func showFile(i int) {
fmt.Print(strings.Repeat("-", width-1) + "\n")
var lines int
var done bool = false
var done = false
for !done {
line, err := reader.ReadString('\n')
done = err != nil
@ -66,6 +69,7 @@ func showFile(i int) {
user.ReadString('\n')
}
// The coordinating function to show the different entries.
func viewEntry() {
entries = make([]string, 0)
err := filepath.Walk(".", filepath.WalkFunc(getFilenames))