42 lines
590 B
Go
42 lines
590 B
Go
package util
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import (
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"unicode/utf8"
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)
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func LuaRuneAt(str string, runeidx int) string {
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i := 0
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for len(str) > 0 {
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r, size := utf8.DecodeRuneInString(str)
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str = str[size:]
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if i == runeidx {
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return string(r)
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}
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i++
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}
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return ""
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}
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func LuaGetLeadingWhitespace(s string) string {
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ws := []byte{}
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for len(s) > 0 {
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r, size := utf8.DecodeRuneInString(s)
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if r == ' ' || r == '\t' {
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ws = append(ws, byte(r))
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} else {
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break
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}
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s = s[size:]
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}
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return string(ws)
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}
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func LuaIsWordChar(s string) bool {
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r, _ := utf8.DecodeRuneInString(s)
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return IsWordChar(r)
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}
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