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blackfriday
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allocate new buffers on stack; mild speed improvement

pull/2/head
Russ Ross 2011-05-31 11:11:04 -06:00
parent 9d23b68fa5
commit df64ec5d0f
4 changed files with 57 additions and 57 deletions
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66
block.go
View File

@ -116,8 +116,8 @@ func blockPrefixHeader(out *bytes.Buffer, rndr *render, data []byte) int {
end--
}
if end > i {
work := bytes.NewBuffer(nil)
parseInline(work, rndr, data[i:end])
var work bytes.Buffer
parseInline(&work, rndr, data[i:end])
if rndr.mk.Header != nil {
rndr.mk.Header(out, work.Bytes(), level, rndr.mk.Opaque)
}
@ -450,7 +450,7 @@ func blockFencedCode(out *bytes.Buffer, rndr *render, data []byte) int {
return 0
}
work := bytes.NewBuffer(nil)
var work bytes.Buffer
for beg < len(data) {
fence_end := isFencedCode(data[beg:], nil)
@ -491,10 +491,10 @@ func blockFencedCode(out *bytes.Buffer, rndr *render, data []byte) int {
}
func blockTable(out *bytes.Buffer, rndr *render, data []byte) int {
header_work := bytes.NewBuffer(nil)
i, columns, col_data := blockTableHeader(header_work, rndr, data)
var header_work bytes.Buffer
i, columns, col_data := blockTableHeader(&header_work, rndr, data)
if i > 0 {
body_work := bytes.NewBuffer(nil)
var body_work bytes.Buffer
for i < len(data) {
pipes, row_start := 0, i
@ -509,7 +509,7 @@ func blockTable(out *bytes.Buffer, rndr *render, data []byte) int {
break
}
blockTableRow(body_work, rndr, data[row_start:i], columns, col_data)
blockTableRow(&body_work, rndr, data[row_start:i], columns, col_data)
i++
}
@ -609,7 +609,7 @@ func blockTableHeader(out *bytes.Buffer, rndr *render, data []byte) (size int, c
func blockTableRow(out *bytes.Buffer, rndr *render, data []byte, columns int, col_data []int) {
i, col := 0, 0
row_work := bytes.NewBuffer(nil)
var row_work bytes.Buffer
if i < len(data) && data[i] == '|' {
i++
@ -632,15 +632,15 @@ func blockTableRow(out *bytes.Buffer, rndr *render, data []byte, columns int, co
cell_end--
}
cell_work := bytes.NewBuffer(nil)
parseInline(cell_work, rndr, data[cell_start:cell_end+1])
var cell_work bytes.Buffer
parseInline(&cell_work, rndr, data[cell_start:cell_end+1])
if rndr.mk.TableCell != nil {
cdata := 0
if col < len(col_data) {
cdata = col_data[col]
}
rndr.mk.TableCell(row_work, cell_work.Bytes(), cdata, rndr.mk.Opaque)
rndr.mk.TableCell(&row_work, cell_work.Bytes(), cdata, rndr.mk.Opaque)
}
i++
@ -653,7 +653,7 @@ func blockTableRow(out *bytes.Buffer, rndr *render, data []byte, columns int, co
if col < len(col_data) {
cdata = col_data[col]
}
rndr.mk.TableCell(row_work, empty_cell, cdata, rndr.mk.Opaque)
rndr.mk.TableCell(&row_work, empty_cell, cdata, rndr.mk.Opaque)
}
}
@ -679,8 +679,8 @@ func blockQuotePrefix(data []byte) int {
// parse a blockquote fragment
func blockQuote(out *bytes.Buffer, rndr *render, data []byte) int {
block := bytes.NewBuffer(nil)
work := bytes.NewBuffer(nil)
var block bytes.Buffer
var work bytes.Buffer
beg, end := 0, 0
for beg < len(data) {
for end = beg + 1; end < len(data) && data[end-1] != '\n'; end++ {
@ -701,7 +701,7 @@ func blockQuote(out *bytes.Buffer, rndr *render, data []byte) int {
beg = end
}
parseBlock(block, rndr, work.Bytes())
parseBlock(&block, rndr, work.Bytes())
if rndr.mk.BlockQuote != nil {
rndr.mk.BlockQuote(out, block.Bytes(), rndr.mk.Opaque)
}
@ -720,7 +720,7 @@ func blockCodePrefix(data []byte) int {
}
func blockCode(out *bytes.Buffer, rndr *render, data []byte) int {
work := bytes.NewBuffer(nil)
var work bytes.Buffer
beg, end := 0, 0
for beg < len(data) {
@ -754,7 +754,7 @@ func blockCode(out *bytes.Buffer, rndr *render, data []byte) int {
n++
}
if n > 0 {
work = bytes.NewBuffer(workbytes[:len(workbytes)-n])
work.Truncate(len(workbytes)-n)
}
work.WriteByte('\n')
@ -798,11 +798,11 @@ func blockOliPrefix(data []byte) int {
// parse ordered or unordered list block
func blockList(out *bytes.Buffer, rndr *render, data []byte, flags int) int {
work := bytes.NewBuffer(nil)
var work bytes.Buffer
i, j := 0, 0
for i < len(data) {
j = blockListItem(work, rndr, data[i:], &flags)
j = blockListItem(&work, rndr, data[i:], &flags)
i += j
if j == 0 || flags&LIST_ITEM_END_OF_LIST != 0 {
@ -846,8 +846,8 @@ func blockListItem(out *bytes.Buffer, rndr *render, data []byte, flags *int) int
}
// get working buffers
work := bytes.NewBuffer(nil)
inter := bytes.NewBuffer(nil)
var work bytes.Buffer
var inter bytes.Buffer
// put the first line into the working buffer
work.Write(data[beg:end])
@ -924,18 +924,18 @@ func blockListItem(out *bytes.Buffer, rndr *render, data []byte, flags *int) int
if *flags&LIST_ITEM_CONTAINS_BLOCK != 0 {
// intermediate render of block li
if sublist > 0 && sublist < len(workbytes) {
parseBlock(inter, rndr, workbytes[:sublist])
parseBlock(inter, rndr, workbytes[sublist:])
parseBlock(&inter, rndr, workbytes[:sublist])
parseBlock(&inter, rndr, workbytes[sublist:])
} else {
parseBlock(inter, rndr, workbytes)
parseBlock(&inter, rndr, workbytes)
}
} else {
// intermediate render of inline li
if sublist > 0 && sublist < len(workbytes) {
parseInline(inter, rndr, workbytes[:sublist])
parseBlock(inter, rndr, workbytes[sublist:])
parseInline(&inter, rndr, workbytes[:sublist])
parseBlock(&inter, rndr, workbytes[sublist:])
} else {
parseInline(inter, rndr, workbytes)
parseInline(&inter, rndr, workbytes)
}
}
@ -983,8 +983,8 @@ func blockParagraph(out *bytes.Buffer, rndr *render, data []byte) int {
}
if level == 0 {
tmp := bytes.NewBuffer(nil)
parseInline(tmp, rndr, work[:size])
var tmp bytes.Buffer
parseInline(&tmp, rndr, work[:size])
if rndr.mk.Paragraph != nil {
rndr.mk.Paragraph(out, tmp.Bytes(), rndr.mk.Opaque)
}
@ -1004,8 +1004,8 @@ func blockParagraph(out *bytes.Buffer, rndr *render, data []byte) int {
}
if size > 0 {
tmp := bytes.NewBuffer(nil)
parseInline(tmp, rndr, work[:size])
var tmp bytes.Buffer
parseInline(&tmp, rndr, work[:size])
if rndr.mk.Paragraph != nil {
rndr.mk.Paragraph(out, tmp.Bytes(), rndr.mk.Opaque)
}
@ -1017,8 +1017,8 @@ func blockParagraph(out *bytes.Buffer, rndr *render, data []byte) int {
}
}
header_work := bytes.NewBuffer(nil)
parseInline(header_work, rndr, work[:size])
var header_work bytes.Buffer
parseInline(&header_work, rndr, work[:size])
if rndr.mk.Header != nil {
rndr.mk.Header(out, header_work.Bytes(), level, rndr.mk.Opaque)

32
inline.go
View File

@ -334,7 +334,7 @@ func inlineLink(out *bytes.Buffer, rndr *render, data []byte, offset int) int {
// find the reference
if link_b == link_e {
if text_has_nl {
b := bytes.NewBuffer(nil)
var b bytes.Buffer
for j := 1; j < txt_e; j++ {
switch {
@ -371,7 +371,7 @@ func inlineLink(out *bytes.Buffer, rndr *render, data []byte, offset int) int {
// craft the id
if text_has_nl {
b := bytes.NewBuffer(nil)
var b bytes.Buffer
for j := 1; j < txt_e; j++ {
switch {
@ -403,19 +403,19 @@ func inlineLink(out *bytes.Buffer, rndr *render, data []byte, offset int) int {
}
// build content: img alt is escaped, link content is parsed
content := bytes.NewBuffer(nil)
var content bytes.Buffer
if txt_e > 1 {
if isImg {
content.Write(data[1:txt_e])
} else {
parseInline(content, rndr, data[1:txt_e])
parseInline(&content, rndr, data[1:txt_e])
}
}
var u_link []byte
if len(link) > 0 {
u_link_buf := bytes.NewBuffer(nil)
unescapeText(u_link_buf, link)
var u_link_buf bytes.Buffer
unescapeText(&u_link_buf, link)
u_link = u_link_buf.Bytes()
}
@ -449,8 +449,8 @@ func inlineLAngle(out *bytes.Buffer, rndr *render, data []byte, offset int) int
if end > 2 {
switch {
case rndr.mk.AutoLink != nil && altype != LINK_TYPE_NOT_AUTOLINK:
u_link := bytes.NewBuffer(nil)
unescapeText(u_link, data[1:end+1-2])
var u_link bytes.Buffer
unescapeText(&u_link, data[1:end+1-2])
ret = rndr.mk.AutoLink(out, u_link.Bytes(), altype, rndr.mk.Opaque)
case rndr.mk.RawHtmlTag != nil:
ret = rndr.mk.RawHtmlTag(out, data[:end], rndr.mk.Opaque)
@ -632,8 +632,8 @@ func inlineAutoLink(out *bytes.Buffer, rndr *render, data []byte, offset int) in
}
if rndr.mk.AutoLink != nil {
u_link := bytes.NewBuffer(nil)
unescapeText(u_link, data[:link_end])
var u_link bytes.Buffer
unescapeText(&u_link, data[:link_end])
rndr.mk.AutoLink(out, u_link.Bytes(), LINK_TYPE_NORMAL, rndr.mk.Opaque)
}
@ -884,8 +884,8 @@ func inlineHelperEmph1(out *bytes.Buffer, rndr *render, data []byte, c byte) int
}
}
work := bytes.NewBuffer(nil)
parseInline(work, rndr, data[:i])
var work bytes.Buffer
parseInline(&work, rndr, data[:i])
r := rndr.mk.Emphasis(out, work.Bytes(), rndr.mk.Opaque)
if r > 0 {
return i + 1
@ -918,8 +918,8 @@ func inlineHelperEmph2(out *bytes.Buffer, rndr *render, data []byte, c byte) int
i += length
if i+1 < len(data) && data[i] == c && data[i+1] == c && i > 0 && !isspace(data[i-1]) {
work := bytes.NewBuffer(nil)
parseInline(work, rndr, data[:i])
var work bytes.Buffer
parseInline(&work, rndr, data[:i])
r := render_method(out, work.Bytes(), rndr.mk.Opaque)
if r > 0 {
return i + 2
@ -952,9 +952,9 @@ func inlineHelperEmph3(out *bytes.Buffer, rndr *render, data []byte, offset int,
switch {
case (i+2 < len(data) && data[i+1] == c && data[i+2] == c && rndr.mk.TripleEmphasis != nil):
// triple symbol found
work := bytes.NewBuffer(nil)
var work bytes.Buffer
parseInline(work, rndr, data[:i])
parseInline(&work, rndr, data[:i])
r := rndr.mk.TripleEmphasis(out, work.Bytes(), rndr.mk.Opaque)
if r > 0 {
return i + 3

12
markdown.go
View File

@ -191,7 +191,7 @@ func Markdown(input []byte, renderer *Renderer, extensions uint32) []byte {
}
// first pass: look for references, copy everything else
text := bytes.NewBuffer(nil)
var text bytes.Buffer
beg, end := 0, 0
for beg < len(input) { // iterate over lines
if end = isReference(rndr, input[beg:]); end > 0 {
@ -204,7 +204,7 @@ func Markdown(input []byte, renderer *Renderer, extensions uint32) []byte {
// add the line body if present
if end > beg {
expandTabs(text, input[beg:end])
expandTabs(&text, input[beg:end])
}
for end < len(input) && (input[end] == '\n' || input[end] == '\r') {
@ -220,9 +220,9 @@ func Markdown(input []byte, renderer *Renderer, extensions uint32) []byte {
}
// second pass: actual rendering
output := bytes.NewBuffer(nil)
var output bytes.Buffer
if rndr.mk.DocumentHeader != nil {
rndr.mk.DocumentHeader(output, rndr.mk.Opaque)
rndr.mk.DocumentHeader(&output, rndr.mk.Opaque)
}
if text.Len() > 0 {
@ -231,11 +231,11 @@ func Markdown(input []byte, renderer *Renderer, extensions uint32) []byte {
if finalchar != '\n' && finalchar != '\r' {
text.WriteByte('\n')
}
parseBlock(output, rndr, text.Bytes())
parseBlock(&output, rndr, text.Bytes())
}
if rndr.mk.DocumentFooter != nil {
rndr.mk.DocumentFooter(output, rndr.mk.Opaque)
rndr.mk.DocumentFooter(&output, rndr.mk.Opaque)
}
if rndr.nesting != 0 {

4
smartypants.go
View File

@ -332,8 +332,8 @@ func htmlSmartypants(ob *bytes.Buffer, text []byte, opaque interface{}) {
smrt := smartypantsData{false, false}
// first do normal entity escaping
escaped := bytes.NewBuffer(nil)
attrEscape(escaped, text)
var escaped bytes.Buffer
attrEscape(&escaped, text)
text = escaped.Bytes()
mark := 0