md2vim/md2vim.go

88 lines
2.7 KiB
Go

/*
* Copyright (c) 2015-2021 Alex Yatskov <alex@foosoft.net>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package main
import (
"flag"
"fmt"
"io/ioutil"
"log"
"os"
"path"
"github.com/russross/blackfriday"
)
func usage() {
fmt.Fprintf(os.Stderr, "Usage: %s [options] input output\n", path.Base(os.Args[0]))
fmt.Fprintf(os.Stderr, "https://foosoft.net/projects/md2vim/\n\n")
fmt.Fprintf(os.Stderr, "Parameters:\n")
flag.PrintDefaults()
}
func main() {
cols := flag.Int("cols", defNumCols, "number of columns to use for layout")
tabs := flag.Int("tabs", defTabSize, "tab width specified in number of spaces")
notoc := flag.Bool("notoc", false, "do not generate table of contents for headings")
norules := flag.Bool("norules", false, "do not generate horizontal rules above headings")
pascal := flag.Bool("pascal", false, "use PascalCase for abbreviating tags")
desc := flag.String("desc", "", "short description of the help file")
flag.Usage = usage
flag.Parse()
args := flag.Args()
if len(args) < 2 {
flag.Usage()
os.Exit(2)
}
input, err := ioutil.ReadFile(args[0])
if err != nil {
log.Fatalf("unable to read from file: %s", args[0])
}
flags := 0
if *notoc {
flags |= flagNoToc
}
if *norules {
flags |= flagNoRules
}
if *pascal {
flags |= flagPascal
}
renderer := VimDocRenderer(args[1], *desc, *cols, *tabs, flags)
extensions := blackfriday.EXTENSION_FENCED_CODE | blackfriday.EXTENSION_NO_INTRA_EMPHASIS | blackfriday.EXTENSION_SPACE_HEADERS
output := blackfriday.Markdown(input, renderer, extensions)
file, err := os.Create(args[1])
if err != nil {
log.Fatalf("unable to write to file: %s", args[1])
}
defer file.Close()
if _, err := file.Write(output); err != nil {
log.Fatal("unable to write output")
}
}