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ergo/irc/utils/glob.go
2020-05-04 23:26:51 -04:00

31 lines
592 B
Go

// Copyright (c) 2020 Shivaram Lingamneni <slingamn@cs.stanford.edu>
// released under the MIT license
package utils
import (
"bytes"
"regexp"
"strings"
)
// yet another glob implementation in Go
func CompileGlob(glob string) (result *regexp.Regexp, err error) {
var buf bytes.Buffer
buf.WriteByte('^')
for {
i := strings.IndexByte(glob, '*')
if i == -1 {
buf.WriteString(regexp.QuoteMeta(glob))
break
} else {
buf.WriteString(regexp.QuoteMeta(glob[:i]))
buf.WriteString(".*")
glob = glob[i+1:]
}
}
buf.WriteByte('$')
return regexp.Compile(buf.String())
}