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remove bytes.Copy

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replace all calls with calls to copy
use copy in regexp and bytes.Buffer

R=rsc
CC=golang-dev
https://golang.org/cl/157073
This commit is contained in:
Rob Pike 2009-11-18 15:24:24 -08:00
parent 093493c6a5
commit e70cedfaec
22 changed files with 147 additions and 218 deletions
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22
src/pkg/regexp/regexp.go
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@ -277,9 +277,8 @@ func newParser(re *Regexp) *parser {
}
func special(c int) bool {
s := `\.+*?()|[]^$`;
for i := 0; i < len(s); i++ {
if c == int(s[i]) {
for _, r := range `\.+*?()|[]^$` {
if c == r {
return true
}
}
@ -287,9 +286,8 @@ func special(c int) bool {
}
func specialcclass(c int) bool {
s := `\-[]`;
for i := 0; i < len(s); i++ {
if c == int(s[i]) {
for _, r := range `\-[]` {
if c == r {
return true
}
}
@ -675,9 +673,7 @@ func (re *Regexp) addState(s []state, inst instr, match []int, pos, end int) []s
}
if l == cap(s) {
s1 := make([]state, 2*l)[0:l];
for i := 0; i < l; i++ {
s1[i] = s[i]
}
copy(s1, s);
s = s1;
}
s = s[0 : l+1];
@ -685,15 +681,11 @@ func (re *Regexp) addState(s []state, inst instr, match []int, pos, end int) []s
s[l].match = match;
if inst.kind() == _ALT {
s1 := make([]int, 2*(re.nbra+1));
for i := 0; i < len(s1); i++ {
s1[i] = match[i]
}
copy(s1, match);
s = re.addState(s, inst.(*_Alt).left, s1, pos, end);
// give other branch a copy of this match vector
s1 = make([]int, 2*(re.nbra+1));
for i := 0; i < len(s1); i++ {
s1[i] = match[i]
}
copy(s1, match);
s = re.addState(s, inst.next(), s1, pos, end);
}
return s;