gcc/libgo/go/mime/grammar.go
Ian Lance Taylor 7a9389330e Add Go frontend, libgo library, and Go testsuite.
gcc/:
	* gcc.c (default_compilers): Add entry for ".go".
	* common.opt: Add -static-libgo as a driver option.
	* doc/install.texi (Configuration): Mention libgo as an option for
	--enable-shared.  Mention go as an option for --enable-languages.
	* doc/invoke.texi (Overall Options): Mention .go as a file name
	suffix.  Mention go as a -x option.
	* doc/frontends.texi (G++ and GCC): Mention Go as a supported
	language.
	* doc/sourcebuild.texi (Top Level): Mention libgo.
	* doc/standards.texi (Standards): Add section on Go language.
	Move references for other languages into their own section.
	* doc/contrib.texi (Contributors): Mention that I contributed the
	Go frontend.
gcc/testsuite/:
	* lib/go.exp: New file.
	* lib/go-dg.exp: New file.
	* lib/go-torture.exp: New file.
	* lib/target-supports.exp (check_compile): Match // Go.

From-SVN: r167407
2010-12-03 04:34:57 +00:00

37 lines
1.0 KiB
Go

// 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 returns true if rune is in 'tspecials' as defined by RFC
// 1531 and RFC 2045.
func isTSpecial(rune int) bool {
return strings.IndexRune(`()<>@,;:\"/[]?=`, rune) != -1
}
// IsTokenChar returns true if rune is in 'token' as defined by RFC
// 1531 and RFC 2045.
func IsTokenChar(rune int) bool {
// token := 1*<any (US-ASCII) CHAR except SPACE, CTLs,
// or tspecials>
return rune > 0x20 && rune < 0x7f && !isTSpecial(rune)
}
// IsQText returns true if rune is in 'qtext' as defined by RFC 822.
func IsQText(rune int) bool {
// CHAR = <any ASCII character> ; ( 0-177, 0.-127.)
// qtext = <any CHAR excepting <">, ; => may be folded
// "\" & CR, and including
// linear-white-space>
switch rune {
case '"', '\\', '\r':
return false
}
return rune < 0x80
}