diff options
Diffstat (limited to 'vendor/golang.org/x/mod/internal/lazyregexp/lazyre.go')
-rw-r--r-- | vendor/golang.org/x/mod/internal/lazyregexp/lazyre.go | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/vendor/golang.org/x/mod/internal/lazyregexp/lazyre.go b/vendor/golang.org/x/mod/internal/lazyregexp/lazyre.go deleted file mode 100644 index 150f887e7..000000000 --- a/vendor/golang.org/x/mod/internal/lazyregexp/lazyre.go +++ /dev/null @@ -1,78 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package lazyregexp is a thin wrapper over regexp, allowing the use of global -// regexp variables without forcing them to be compiled at init. -package lazyregexp - -import ( - "os" - "regexp" - "strings" - "sync" -) - -// Regexp is a wrapper around [regexp.Regexp], where the underlying regexp will be -// compiled the first time it is needed. -type Regexp struct { - str string - once sync.Once - rx *regexp.Regexp -} - -func (r *Regexp) re() *regexp.Regexp { - r.once.Do(r.build) - return r.rx -} - -func (r *Regexp) build() { - r.rx = regexp.MustCompile(r.str) - r.str = "" -} - -func (r *Regexp) FindSubmatch(s []byte) [][]byte { - return r.re().FindSubmatch(s) -} - -func (r *Regexp) FindStringSubmatch(s string) []string { - return r.re().FindStringSubmatch(s) -} - -func (r *Regexp) FindStringSubmatchIndex(s string) []int { - return r.re().FindStringSubmatchIndex(s) -} - -func (r *Regexp) ReplaceAllString(src, repl string) string { - return r.re().ReplaceAllString(src, repl) -} - -func (r *Regexp) FindString(s string) string { - return r.re().FindString(s) -} - -func (r *Regexp) FindAllString(s string, n int) []string { - return r.re().FindAllString(s, n) -} - -func (r *Regexp) MatchString(s string) bool { - return r.re().MatchString(s) -} - -func (r *Regexp) SubexpNames() []string { - return r.re().SubexpNames() -} - -var inTest = len(os.Args) > 0 && strings.HasSuffix(strings.TrimSuffix(os.Args[0], ".exe"), ".test") - -// New creates a new lazy regexp, delaying the compiling work until it is first -// needed. If the code is being run as part of tests, the regexp compiling will -// happen immediately. -func New(str string) *Regexp { - lr := &Regexp{str: str} - if inTest { - // In tests, always compile the regexps early. - lr.re() - } - return lr -} |