example markdown binary: try to guess a title

This commit is contained in:
Russ Ross 2011-06-28 10:58:37 -06:00
parent 2a18706ca4
commit 84eeba2562
1 changed files with 16 additions and 2 deletions

View File

@ -16,6 +16,7 @@
package main
import (
"bytes"
"flag"
"fmt"
"io/ioutil"
@ -46,7 +47,7 @@ func main() {
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "Usage:\n"+
" %s [options] [inputfile [outputfile]]\n\n"+
"Options:\n", os.Args[0])
"Options:\n",os.Args[0])
flag.PrintDefaults()
}
flag.Parse()
@ -135,6 +136,19 @@ func main() {
}
if page {
// if it starts with an <h1>, make that the title
title := ""
if bytes.HasPrefix(output, []byte("<h1>")) {
end := 0
// we know the buffer ends with a newline, so no need to check bounds
for output[end] != '\n' {
end++
}
if bytes.HasSuffix(output[:end], []byte("</h1>")) {
title = string(output[len("<h1>") : end-len("</h1>")])
}
}
ending := ""
if xhtml {
fmt.Fprint(out, "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" ")
@ -147,7 +161,7 @@ func main() {
fmt.Fprintln(out, "<html>")
}
fmt.Fprintln(out, "<head>")
fmt.Fprintln(out, " <title></title>")
fmt.Fprintf(out, " <title>%s</title>\n", title)
fmt.Fprintf(out, " <meta name=\"GENERATOR\" content=\"Blackfriday markdown processor\"%s>\n", ending)
fmt.Fprintf(out, " <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"%s>\n", ending)
if css != "" {