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comparison wdown.go @ 6:a5f397e25cb7

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Add ability to render the markdown inside a template
author Jonatan Werpers <jonatan@werpers.com>
date Tue, 16 Jun 2020 22:10:31 +0200
parents 534fa4c6668e
children a5aa39557726
comparison
equal deleted inserted replaced
5:534fa4c6668e 6:a5f397e25cb7
1 package main 1 package main
2 2
3 import ( 3 import (
4 "bytes"
4 "flag" 5 "flag"
5 "fmt" 6 "fmt"
6 "io/ioutil" 7 "io/ioutil"
7 "log" 8 "log"
8 "os" 9 "os"
9 10
11 "github.com/cbroglie/mustache"
10 "github.com/yuin/goldmark" 12 "github.com/yuin/goldmark"
11 highlighting "github.com/yuin/goldmark-highlighting" 13 highlighting "github.com/yuin/goldmark-highlighting"
12 "github.com/yuin/goldmark/extension" 14 "github.com/yuin/goldmark/extension"
13 "github.com/yuin/goldmark/parser" 15 "github.com/yuin/goldmark/parser"
14 ) 16 )
15 17
16 func main() { 18 func main() {
19 var templateFilename string
20
21 flag.StringVar(&templateFilename, "tmpl", "", "Template file to render the html inside. The content of the markdown file will replace the placeholder {{content}}.")
22
17 flag.Parse() 23 flag.Parse()
18 24
19 if flag.NArg() < 1 { 25 if flag.NArg() < 1 {
20 fmt.Println("Please provide a markdown file for parsing.") 26 fmt.Println("Please provide a markdown file for parsing.")
21 os.Exit(1) 27 os.Exit(1)
28 }
29
30 var useTemplate = false
31 if templateFilename != "" {
32 useTemplate = true
33 }
34
35 tmpl, err := mustache.ParseFile(templateFilename)
36 if err != nil {
37 log.Fatal(err)
22 } 38 }
23 39
24 source, err := ioutil.ReadFile(flag.Arg(0)) 40 source, err := ioutil.ReadFile(flag.Arg(0))
25 41
26 if err != nil { 42 if err != nil {
35 goldmark.WithParserOptions( 51 goldmark.WithParserOptions(
36 parser.WithAutoHeadingID(), 52 parser.WithAutoHeadingID(),
37 ), 53 ),
38 ) 54 )
39 55
40 err = md.Convert(source, os.Stdout) 56 var htmlContent bytes.Buffer
41 57 err = md.Convert(source, &htmlContent)
42 if err != nil { 58 if err != nil {
43 log.Fatal(err) 59 log.Fatal(err)
44 } 60 }
61
62 if useTemplate {
63 context := map[string]string{
64 "content": htmlContent.String(),
65 }
66 err := tmpl.FRender(os.Stdout, context)
67 if err != nil {
68 log.Fatal(err)
69 }
70 } else {
71 fmt.Print(htmlContent)
72 }
45 } 73 }