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Performance optimizations

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This commit is contained in:
yuin 2019-05-01 20:43:10 +09:00
parent 987f65f813
commit e7cef1b7ca
2 changed files with 22 additions and 25 deletions
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6
README.md
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@ -121,9 +121,9 @@ Though goldmark builds clean extensible AST structure and get full compliance wi
Commonmark, it is resonably fast and less memory consumption.
```
BenchmarkGoldMark-4 200 7981524 ns/op 2485650 B/op 15716 allocs/op
BenchmarkGolangCommonMark-4 200 8609737 ns/op 3053758 B/op 18681 allocs/op
BenchmarkBlackFriday-4 200 6311112 ns/op 3356762 B/op 17481 allocs/op
BenchmarkGoldMark-4 200 7176000 ns/op 2482660 B/op 15597 allocs/op
BenchmarkGolangCommonMark-4 200 7874817 ns/op 3053775 B/op 18682 allocs/op
BenchmarkBlackFriday-4 300 5871891 ns/op 3356419 B/op 17481 allocs/op
```
Donation

41
util/util.go
View file

@ -377,16 +377,21 @@ func EscapeHTMLByte(b byte) []byte {
// EscapeHTML escapes characters that should be escaped in HTML text.
func EscapeHTML(v []byte) []byte {
result := make([]byte, 0, len(v)+10)
for _, c := range v {
cob := NewCopyOnWriteBuffer(v)
n := 0
for i := 0; i < len(v); i++ {
c := v[i]
escaped := htmlEscapeTable[c]
if escaped != nil {
result = append(result, escaped...)
} else {
result = append(result, c)
cob.Write(v[n:i])
cob.Write(escaped)
n = i + 1
}
}
return result
if cob.IsCopied() {
cob.Write(v[n:len(v)])
}
return cob.Bytes()
}
// UnescapePunctuations unescapes blackslash escaped punctuations.
@ -508,17 +513,9 @@ func URLEscape(v []byte, resolveReference bool) []byte {
v = ResolveNumericReferences(v)
v = ResolveEntityNames(v)
}
ret := v
changed := false
cob := NewCopyOnWriteBuffer(v)
limit := len(v)
n := 0
add := func(b []byte) {
if !changed {
ret = make([]byte, 0, len(v)+20)
changed = true
}
ret = append(ret, b...)
}
for i := 0; i < limit; {
c := v[i]
@ -536,21 +533,21 @@ func URLEscape(v []byte, resolveReference bool) []byte {
continue
}
if c == ' ' {
add(v[n:i])
add(htmlSpace)
cob.Write(v[n:i])
cob.Write(htmlSpace)
i++
n = i
continue
}
add(v[n:i])
add([]byte(url.QueryEscape(string(v[i : i+int(u8len)]))))
cob.Write(v[n:i])
cob.Write(StringToReadOnlyBytes(url.QueryEscape(string(v[i : i+int(u8len)]))))
i += int(u8len)
n = i
}
if changed {
add(v[n:len(v)])
if cob.IsCopied() {
cob.Write(v[n:len(v)])
}
return ret
return cob.Bytes()
}
// FindAttributeIndex searchs