1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
// markdown-it plugin for:
// 1. adding target="_blank" to external links
// 2. converting internal links to <router-link>
const indexRE = /(.*)(index|readme).md(#?.*)$/i
module.exports = (md, externalAttrs) => {
let hasOpenRouterLink = false
let hasOpenExternalLink = false
md.renderer.rules.link_open = (tokens, idx, options, env, self) => {
const token = tokens[idx]
const hrefIndex = token.attrIndex('href')
if (hrefIndex >= 0) {
const link = token.attrs[hrefIndex]
const href = link[1]
const isExternal = /^https?:/.test(href)
const isSourceLink = /(\/|\.md|\.html)(#.*)?$/.test(href)
if (isExternal) {
Object.entries(externalAttrs).forEach(([key, val]) => {
token.attrSet(key, val)
})
if (/_blank/i.test(externalAttrs['target'])) {
hasOpenExternalLink = true
}
} else if (isSourceLink) {
hasOpenRouterLink = true
tokens[idx] = toRouterLink(token, link)
}
}
return self.renderToken(tokens, idx, options)
}
function toRouterLink (token, link) {
link[0] = 'to'
let to = link[1]
// convert link to filename and export it for existence check
const links = md.__data.links || (md.__data.links = [])
links.push(to)
const indexMatch = to.match(indexRE)
if (indexMatch) {
const [, path, , hash] = indexMatch
to = path + hash
} else {
to = to
.replace(/\.md$/, '.html')
.replace(/\.md(#.*)$/, '.html$1')
}
// relative path usage.
if (!to.startsWith('/')) {
to = ensureBeginningDotSlash(to)
}
// markdown-it encodes the uri
link[1] = decodeURI(to)
// export the router links for testing
const routerLinks = md.__data.routerLinks || (md.__data.routerLinks = [])
routerLinks.push(to)
return Object.assign({}, token, {
tag: 'router-link'
})
}
md.renderer.rules.link_close = (tokens, idx, options, env, self) => {
const token = tokens[idx]
if (hasOpenRouterLink) {
token.tag = 'router-link'
hasOpenRouterLink = false
}
if (hasOpenExternalLink) {
hasOpenExternalLink = false
// add OutBoundLink to the beforeend of this link if it opens in _blank.
return '<OutboundLink/>' + self.renderToken(tokens, idx, options)
}
return self.renderToken(tokens, idx, options)
}
}
const beginningSlashRE = /^\.\//
function ensureBeginningDotSlash (path) {
if (beginningSlashRE.test(path)) {
return path
}
return './' + path
}
|
