mirror of
https://github.com/octoleo/syncthing.git
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70 lines
1.9 KiB
Go
70 lines
1.9 KiB
Go
// Copyright (C) 2014 Jakob Borg and Contributors (see the CONTRIBUTORS file).
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// All rights reserved. Use of this source code is governed by an MIT-style
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// license that can be found in the LICENSE file.
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package fnmatch
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import (
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"path/filepath"
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"regexp"
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"runtime"
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"strings"
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)
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const (
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FNM_NOESCAPE = (1 << iota)
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FNM_PATHNAME
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FNM_CASEFOLD
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)
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func Convert(pattern string, flags int) (*regexp.Regexp, error) {
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any := "."
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switch runtime.GOOS {
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case "windows":
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flags |= FNM_NOESCAPE | FNM_CASEFOLD
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pattern = filepath.FromSlash(pattern)
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if flags&FNM_PATHNAME != 0 {
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any = "[^\\\\]"
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}
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case "darwin":
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flags |= FNM_CASEFOLD
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fallthrough
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default:
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if flags&FNM_PATHNAME != 0 {
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any = "[^/]"
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}
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}
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if flags&FNM_NOESCAPE != 0 {
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pattern = strings.Replace(pattern, "\\", "\\\\", -1)
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} else {
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pattern = strings.Replace(pattern, "\\*", "[:escapedstar:]", -1)
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pattern = strings.Replace(pattern, "\\?", "[:escapedques:]", -1)
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pattern = strings.Replace(pattern, "\\.", "[:escapeddot:]", -1)
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}
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pattern = strings.Replace(pattern, ".", "\\.", -1)
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pattern = strings.Replace(pattern, "**", "[:doublestar:]", -1)
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pattern = strings.Replace(pattern, "*", any+"*", -1)
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pattern = strings.Replace(pattern, "[:doublestar:]", ".*", -1)
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pattern = strings.Replace(pattern, "?", any, -1)
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pattern = strings.Replace(pattern, "[:escapedstar:]", "\\*", -1)
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pattern = strings.Replace(pattern, "[:escapedques:]", "\\?", -1)
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pattern = strings.Replace(pattern, "[:escapeddot:]", "\\.", -1)
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pattern = "^" + pattern + "$"
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if flags&FNM_CASEFOLD != 0 {
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pattern = "(?i)" + pattern
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}
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return regexp.Compile(pattern)
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}
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// Matches the pattern against the string, with the given flags,
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// and returns true if the match is successful.
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func Match(pattern, s string, flags int) (bool, error) {
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exp, err := Convert(pattern, flags)
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if err != nil {
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return false, err
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}
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return exp.MatchString(s), nil
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}
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