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//
// Mmark Markdown Processor, based up Blackfriday Markdown Processor
// Available at http://github.com/russross/mmark
//
// Copyright © 2011 Russ Ross <russ@russross.com>.
// Distributed under the Simplified BSD License.
// See README.md for details.
// Copyright © 2014 Miek Gieben <miek@miek.nl>.
// Example front-end for command-line use
package main
import (
"flag"
"fmt"
"io/ioutil"
"log"
"os"
"github.com/miekg/mmark"
)
var githash string
const DEFAULT_TITLE = ""
func main() {
// parse command-line options
var page, xml, xml2, toml, rfc7328, version bool
var css, head string
flag.BoolVar(&page, "page", false, "generate a standalone HTML page")
flag.BoolVar(&xml, "xml", false, "generate xml2rfc v3 output")
flag.BoolVar(&xml2, "xml2", false, "generate xml2rfc v2 output")
flag.BoolVar(&version, "version", false, "show mmark version")
flag.StringVar(&css, "css", "", "link to a CSS stylesheet (implies -page)")
flag.StringVar(&head, "head", "", "link to HTML to be included in head (implies -page)")
flag.StringVar(&mmark.CitationsID, "bib-id", mmark.CitationsID, "ID bibliography URL")
flag.StringVar(&mmark.CitationsRFC, "bib-rfc", mmark.CitationsRFC, "RFC bibliography URL")
flag.BoolVar(&toml, "toml", false, "input file is xml2rfc XML which is convert to TOML titleblock")
flag.BoolVar(&rfc7328, "rfc7328", false, "parse RFC 7328 style input")
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "Mmark Markdown Processor"+
"\nAvailable at http://github.com/miekg/mmark\n\n"+
"Copyright © 2014 Miek Gieben <miek@miek.nl>\n"+
"Copyright © 2011 Russ Ross <russ@russross.com>\n"+
"Distributed under the Simplified BSD License\n\n"+
"Usage:\n"+
" %s [options] [inputfile [outputfile]]\n\n"+
"Options:\n",
os.Args[0])
flag.PrintDefaults()
}
flag.Parse()
if version{
if githash != "" {
githash = "+" + githash
}
fmt.Printf("%s%s\n", mmark.Version, githash)
return
}
// enforce implied options
if css != "" {
page = true
}
if head != "" {
page = true
}
// read the input
var input []byte
var err error
args := flag.Args()
switch len(args) {
case 0:
if input, err = ioutil.ReadAll(os.Stdin); err != nil {
log.Fatalf("error reading from standard input: %v", err)
}
case 1, 2:
if input, err = ioutil.ReadFile(args[0]); err != nil {
log.Fatalf("error reading from %s: %s", args[0], err)
}
default:
flag.Usage()
return
}
// separate mode for parsing XML to TOML
if toml {
parseXMLtoTOML(input)
return
}
// set up options
extensions := 0
extensions |= mmark.EXTENSION_TABLES
extensions |= mmark.EXTENSION_FENCED_CODE
extensions |= mmark.EXTENSION_AUTOLINK
extensions |= mmark.EXTENSION_SPACE_HEADERS
extensions |= mmark.EXTENSION_CITATION
extensions |= mmark.EXTENSION_TITLEBLOCK_TOML
extensions |= mmark.EXTENSION_HEADER_IDS
extensions |= mmark.EXTENSION_AUTO_HEADER_IDS
extensions |= mmark.EXTENSION_UNIQUE_HEADER_IDS
extensions |= mmark.EXTENSION_FOOTNOTES
extensions |= mmark.EXTENSION_SHORT_REF
extensions |= mmark.EXTENSION_INCLUDE
extensions |= mmark.EXTENSION_PARTS
extensions |= mmark.EXTENSION_ABBREVIATIONS
extensions |= mmark.EXTENSION_DEFINITION_LISTS
if rfc7328 {
extensions |= mmark.EXTENSION_RFC7328
}
var renderer mmark.Renderer
xmlFlags := 0
switch {
case xml:
if page {
xmlFlags = mmark.XML_STANDALONE
}
renderer = mmark.XmlRenderer(xmlFlags)
case xml2:
if page {
xmlFlags = mmark.XML2_STANDALONE
}
renderer = mmark.Xml2Renderer(xmlFlags)
default:
// render the data into HTML
htmlFlags := 0
if page {
htmlFlags |= mmark.HTML_COMPLETE_PAGE
}
renderer = mmark.HtmlRenderer(htmlFlags, css, head)
}
// parse and render
output := mmark.Parse(input, renderer, extensions).Bytes()
// output the result
out := os.Stdout
if len(args) == 2 {
if out, err = os.Create(args[1]); err != nil {
log.Fatalf("error creating %s: %v", args[1], err)
}
defer out.Close()
}
if _, err = out.Write(output); err != nil {
log.Fatalf("error writing output:", err)
}
}
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