Function strGsubFunc

stringlib.go:267–293

(L *LState, str string, repl *LFunction, matches []*pm.MatchData)

}

func strGsubFunc(L *LState, str string, repl *LFunction, matches []*pm.MatchData) string {
	infoList := make([]replaceInfo, 0, len(matches))
	for _, match := range matches {
		start, end := match.Capture(0), match.Capture(1)
		L.Push(repl)
		nargs := 0
		if match.CaptureLength() > 2 { // has captures
			for i := 2; i < match.CaptureLength(); i += 2 {
				if match.IsPosCapture(i) {
					L.Push(LNumber(match.Capture(i)))
				} else {
					L.Push(LString(capturedString(L, match, str, i)))
				}
				nargs++
			}
		} else {
			L.Push(LString(capturedString(L, match, str, 0)))
			nargs++
		}
		L.Call(nargs, 1)
		ret := L.reg.Pop()
		if !LVIsFalse(ret) {
			infoList = append(infoList, replaceInfo{[]int{start, end}, LVAsString(ret)})
		}
	}
	return strGsubDoReplace(str, infoList)
}

type strMatchData struct {
	str     string