From 04b08da9af0c450d645ab7389d1467308cfc2db8 Mon Sep 17 00:00:00 2001 From: Michael Stapelberg Date: Mon, 4 Mar 2013 21:27:36 +0100 Subject: Imported Upstream version 1.1~hg20130304 --- src/pkg/net/textproto/textproto.go | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'src/pkg/net/textproto/textproto.go') diff --git a/src/pkg/net/textproto/textproto.go b/src/pkg/net/textproto/textproto.go index ad5840cf7..eb6ced1c5 100644 --- a/src/pkg/net/textproto/textproto.go +++ b/src/pkg/net/textproto/textproto.go @@ -121,3 +121,34 @@ func (c *Conn) Cmd(format string, args ...interface{}) (id uint, err error) { } return id, nil } + +// TrimString returns s without leading and trailing ASCII space. +func TrimString(s string) string { + for len(s) > 0 && isASCIISpace(s[0]) { + s = s[1:] + } + for len(s) > 0 && isASCIISpace(s[len(s)-1]) { + s = s[:len(s)-1] + } + return s +} + +// TrimBytes returns b without leading and trailing ASCII space. +func TrimBytes(b []byte) []byte { + for len(b) > 0 && isASCIISpace(b[0]) { + b = b[1:] + } + for len(b) > 0 && isASCIISpace(b[len(b)-1]) { + b = b[:len(b)-1] + } + return b +} + +func isASCIISpace(b byte) bool { + return b == ' ' || b == '\t' || b == '\n' || b == '\r' +} + +func isASCIILetter(b byte) bool { + b |= 0x20 // make lower case + return 'a' <= b && b <= 'z' +} -- cgit v1.2.3