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Use raw strings to describe regexes, avoids double escaping

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This commit is contained in:
Jakob Borg 2015-09-02 22:19:45 +02:00
parent fea0ae7f2f
commit 2581e56503
1 changed files with 17 additions and 17 deletions
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34
lib/fnmatch/fnmatch.go
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@ -27,43 +27,43 @@ func Convert(pattern string, flags int) (*regexp.Regexp, error) {
flags |= NoEscape | CaseFold
pattern = filepath.FromSlash(pattern)
if flags&PathName != 0 {
any = "[^\\\\]"
any = `[^\\]`
}
case "darwin":
flags |= CaseFold
fallthrough
default:
if flags&PathName != 0 {
any = "[^/]"
any = `[^/]`
}
}
if flags&NoEscape != 0 {
pattern = strings.Replace(pattern, "\\", "\\\\", -1)
pattern = strings.Replace(pattern, `\`, `\\`, -1)
} else {
pattern = strings.Replace(pattern, "\\*", "[:escapedstar:]", -1)
pattern = strings.Replace(pattern, "\\?", "[:escapedques:]", -1)
pattern = strings.Replace(pattern, "\\.", "[:escapeddot:]", -1)
pattern = strings.Replace(pattern, `\*`, "[:escapedstar:]", -1)
pattern = strings.Replace(pattern, `\?`, "[:escapedques:]", -1)
pattern = strings.Replace(pattern, `\.`, "[:escapeddot:]", -1)
}
// Characters that are special in regexps but not in glob, must be
// escaped.
for _, char := range []string{".", "+", "$", "^", "(", ")", "|"} {
pattern = strings.Replace(pattern, char, "\\"+char, -1)
for _, char := range []string{`.`, `+`, `$`, `^`, `(`, `)`, `|`} {
pattern = strings.Replace(pattern, char, `\`+char, -1)
}
pattern = strings.Replace(pattern, "**", "[:doublestar:]", -1)
pattern = strings.Replace(pattern, "*", any+"*", -1)
pattern = strings.Replace(pattern, "[:doublestar:]", ".*", -1)
pattern = strings.Replace(pattern, "?", any, -1)
pattern = strings.Replace(pattern, `**`, `[:doublestar:]`, -1)
pattern = strings.Replace(pattern, `*`, any+`*`, -1)
pattern = strings.Replace(pattern, `[:doublestar:]`, `.*`, -1)
pattern = strings.Replace(pattern, `?`, any, -1)
pattern = strings.Replace(pattern, "[:escapedstar:]", "\\*", -1)
pattern = strings.Replace(pattern, "[:escapedques:]", "\\?", -1)
pattern = strings.Replace(pattern, "[:escapeddot:]", "\\.", -1)
pattern = strings.Replace(pattern, `[:escapedstar:]`, `\*`, -1)
pattern = strings.Replace(pattern, `[:escapedques:]`, `\?`, -1)
pattern = strings.Replace(pattern, `[:escapeddot:]`, `\.`, -1)
pattern = "^" + pattern + "$"
pattern = `^` + pattern + `$`
if flags&CaseFold != 0 {
pattern = "(?i)" + pattern
pattern = `(?i)` + pattern
}
return regexp.Compile(pattern)
}