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template: cosmetic cleanups.

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Remove the idea of space being white.  Sometimes space is green.
Simplify a comment and remove the Latin.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4532096
This commit is contained in:
Rob Pike 2011-05-29 16:13:41 +10:00
parent e11d94fcd7
commit 62943df829
1 changed files with 13 additions and 13 deletions
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26
src/pkg/template/template.go
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@ -236,8 +236,8 @@ func isExported(name string) bool {
// -- Lexical analysis
// Is c a white space character?
func white(c uint8) bool { return c == ' ' || c == '\t' || c == '\r' || c == '\n' }
// Is c a space character?
func isSpace(c uint8) bool { return c == ' ' || c == '\t' || c == '\r' || c == '\n' }
// Safely, does s[n:n+len(t)] == t?
func equal(s []byte, n int, t []byte) bool {
@ -292,9 +292,9 @@ func (t *Template) nextItem() []byte {
t.linenum++
i++
}
// Leading white space up to but not including newline
// Leading space up to but not including newline
for i = start; i < len(t.buf); i++ {
if t.buf[i] == '\n' || !white(t.buf[i]) {
if t.buf[i] == '\n' || !isSpace(t.buf[i]) {
break
}
}
@ -339,7 +339,7 @@ func (t *Template) nextItem() []byte {
firstChar := t.buf[left+len(t.ldelim)]
if firstChar == '.' || firstChar == '#' {
// It's special and the first thing on the line. Is it the last?
for j := right; j < len(t.buf) && white(t.buf[j]); j++ {
for j := right; j < len(t.buf) && isSpace(t.buf[j]); j++ {
if t.buf[j] == '\n' {
// Yes it is. Drop the surrounding space and return the {.foo}
t.linenum++
@ -351,7 +351,7 @@ func (t *Template) nextItem() []byte {
}
// No it's not. If there's leading space, return that.
if leadingSpace {
// not trimming space: return leading white space if there is some.
// not trimming space: return leading space if there is some.
t.p = left
return t.buf[start:left]
}
@ -374,13 +374,13 @@ func (t *Template) nextItem() []byte {
return item
}
// Turn a byte array into a white-space-split array of strings,
// Turn a byte array into a space-split array of strings,
// taking into account quoted strings.
func words(buf []byte) []string {
s := make([]string, 0, 5)
for i := 0; i < len(buf); {
// One word per loop
for i < len(buf) && white(buf[i]) {
for i < len(buf) && isSpace(buf[i]) {
i++
}
if i == len(buf) {
@ -396,9 +396,9 @@ func words(buf []byte) []string {
i++
}
}
// Even with quotes, break on whitespace only. This will
// work with e.g. {""|} and catch quoting mistakes properly.
for i < len(buf) && !white(buf[i]) {
// Even with quotes, break on space only. This handles input
// such as {""|} and catches quoting mistakes.
for i < len(buf) && !isSpace(buf[i]) {
i++
}
s = append(s, string(buf[start:i]))
@ -1013,13 +1013,13 @@ func (t *Template) executeRepeated(r *repeatedElement, st *state) {
}
}
// A valid delimiter must contain no white space and be non-empty.
// A valid delimiter must contain no space and be non-empty.
func validDelim(d []byte) bool {
if len(d) == 0 {
return false
}
for _, c := range d {
if white(c) {
if isSpace(c) {
return false
}
}