mindoc/static/to-markdown/lib/md-converters.js

152 lines
3.4 KiB
JavaScript

'use strict'
module.exports = [
{
filter: 'p',
replacement: function (content) {
return '\n\n' + content + '\n\n'
}
},
{
filter: 'br',
replacement: function () {
return ' \n'
}
},
{
filter: ['h1', 'h2', 'h3', 'h4', 'h5', 'h6'],
replacement: function (content, node) {
var hLevel = node.nodeName.charAt(1)
var hPrefix = ''
for (var i = 0; i < hLevel; i++) {
hPrefix += '#'
}
return '\n\n' + hPrefix + ' ' + content + '\n\n'
}
},
{
filter: 'hr',
replacement: function () {
return '\n\n* * *\n\n'
}
},
{
filter: ['em', 'i'],
replacement: function (content) {
return '_' + content + '_'
}
},
{
filter: ['strong', 'b'],
replacement: function (content) {
return '**' + content + '**'
}
},
// Inline code
{
filter: function (node) {
var hasSiblings = node.previousSibling || node.nextSibling
var isCodeBlock = node.parentNode.nodeName === 'PRE' && !hasSiblings
return node.nodeName === 'CODE' && !isCodeBlock
},
replacement: function (content) {
return '`' + content + '`'
}
},
{
filter: function (node) {
return node.nodeName === 'A' && node.getAttribute('href')
},
replacement: function (content, node) {
var titlePart = node.title ? ' "' + node.title + '"' : ''
return '[' + content + '](' + node.getAttribute('href') + titlePart + ')'
}
},
{
filter: 'img',
replacement: function (content, node) {
var alt = node.alt || ''
var src = node.getAttribute('src') || ''
var title = node.title || ''
var titlePart = title ? ' "' + title + '"' : ''
return src ? '![' + alt + ']' + '(' + src + titlePart + ')' : ''
}
},
// Code blocks
{
filter: function (node) {
return node.nodeName === 'PRE' && node.firstChild.nodeName === 'CODE'
},
replacement: function (content, node) {
return '\n\n ' + node.firstChild.textContent.replace(/\n/g, '\n ') + '\n\n'
}
},
{
filter: 'blockquote',
replacement: function (content) {
content = content.trim()
content = content.replace(/\n{3,}/g, '\n\n')
content = content.replace(/^/gm, '> ')
return '\n\n' + content + '\n\n'
}
},
{
filter: 'li',
replacement: function (content, node) {
content = content.replace(/^\s+/, '').replace(/\n/gm, '\n ')
var prefix = '* '
var parent = node.parentNode
var index = Array.prototype.indexOf.call(parent.children, node) + 1
prefix = /ol/i.test(parent.nodeName) ? index + '. ' : '* '
return prefix + content
}
},
{
filter: ['ul', 'ol'],
replacement: function (content, node) {
var strings = []
for (var i = 0; i < node.childNodes.length; i++) {
strings.push(node.childNodes[i]._replacement)
}
if (/li/i.test(node.parentNode.nodeName)) {
return '\n' + strings.join('\n')
}
return '\n\n' + strings.join('\n') + '\n\n'
}
},
{
filter: function (node) {
return this.isBlock(node)
},
replacement: function (content, node) {
return '\n\n' + this.outer(node, content) + '\n\n'
}
},
// Anything else!
{
filter: function () {
return true
},
replacement: function (content, node) {
return this.outer(node, content)
}
}
]