File: grammar.go

package info (click to toggle)
gcc-arm-none-eabi 15%3A12.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 959,712 kB
  • sloc: cpp: 3,275,382; ansic: 2,061,766; ada: 840,956; f90: 208,513; makefile: 76,132; asm: 73,433; xml: 50,448; exp: 34,146; sh: 32,436; objc: 15,637; fortran: 14,012; python: 11,991; pascal: 6,787; awk: 4,779; perl: 3,054; yacc: 338; ml: 285; lex: 201; haskell: 122
file content (32 lines) | stat: -rw-r--r-- 828 bytes parent folder | download | duplicates (41) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
// Copyright 2010 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 mime

import (
	"strings"
)

// isTSpecial reports whether rune is in 'tspecials' as defined by RFC
// 1521 and RFC 2045.
func isTSpecial(r rune) bool {
	return strings.ContainsRune(`()<>@,;:\"/[]?=`, r)
}

// isTokenChar reports whether rune is in 'token' as defined by RFC
// 1521 and RFC 2045.
func isTokenChar(r rune) bool {
	// token := 1*<any (US-ASCII) CHAR except SPACE, CTLs,
	//             or tspecials>
	return r > 0x20 && r < 0x7f && !isTSpecial(r)
}

// isToken reports whether s is a 'token' as defined by RFC 1521
// and RFC 2045.
func isToken(s string) bool {
	if s == "" {
		return false
	}
	return strings.IndexFunc(s, isNotTokenChar) < 0
}