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return result instead of taking buffer as input

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This commit is contained in:
Russ Ross 2011-05-28 22:37:12 -06:00
parent 6c6efa13b5
commit 3ee2b137f8
2 changed files with 8 additions and 7 deletions
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8
example/main.go
View File

@ -13,7 +13,6 @@
package main
import (
"bytes"
"fmt"
"io/ioutil"
"github.com/russross/blackfriday"
@ -41,7 +40,6 @@ func main() {
}
// set up options
output := bytes.NewBuffer(nil)
var extensions uint32
extensions |= blackfriday.EXTENSION_NO_INTRA_EMPHASIS
extensions |= blackfriday.EXTENSION_TABLES
@ -57,16 +55,16 @@ func main() {
html_flags |= blackfriday.HTML_SMARTYPANTS_LATEX_DASHES
// render the data
blackfriday.Markdown(output, input, blackfriday.HtmlRenderer(html_flags), extensions)
output := blackfriday.Markdown(input, blackfriday.HtmlRenderer(html_flags), extensions)
// output the result
if len(os.Args) == 3 {
if err = ioutil.WriteFile(os.Args[2], output.Bytes(), 0644); err != nil {
if err = ioutil.WriteFile(os.Args[2], output, 0644); err != nil {
fmt.Fprintln(os.Stderr, "Error writing to", os.Args[2], ":", err)
os.Exit(-1)
}
} else {
if _, err = os.Stdout.Write(output.Bytes()); err != nil {
if _, err = os.Stdout.Write(output); err != nil {
fmt.Fprintln(os.Stderr, "Error writing to Stdout:", err)
os.Exit(-1)
}

7
markdown.go
View File

@ -166,10 +166,10 @@ const (
// Parse and render a block of markdown-encoded text.
// The renderer is used to format the output, and extensions dictates which
// non-standard extensions are enabled.
func Markdown(output *bytes.Buffer, input []byte, renderer *Renderer, extensions uint32) {
func Markdown(input []byte, renderer *Renderer, extensions uint32) []byte {
// no point in parsing if we can't render
if renderer == nil {
return
return nil
}
// fill in the character-level parsers
@ -255,6 +255,7 @@ func Markdown(output *bytes.Buffer, input []byte, renderer *Renderer, extensions
}
// second pass: actual rendering
output := bytes.NewBuffer(nil)
if rndr.mk.doc_header != nil {
rndr.mk.doc_header(output, rndr.mk.opaque)
}
@ -275,6 +276,8 @@ func Markdown(output *bytes.Buffer, input []byte, renderer *Renderer, extensions
if rndr.nesting != 0 {
panic("Nesting level did not end at zero")
}
return output.Bytes()
}