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1 | | -import {h, s} from 'hastscript' |
2 | | -import {html, svg, find} from 'property-information' |
3 | | -import vfileLocation from 'vfile-location' |
4 | | -import {webNamespaces} from 'web-namespaces' |
| 1 | +/** |
| 2 | + * @typedef {import('./lib/index.js').Options} Options |
| 3 | + */ |
5 | 4 |
|
6 | | -var own = {}.hasOwnProperty |
7 | | - |
8 | | -// Handlers. |
9 | | -var map = { |
10 | | - '#document': root, |
11 | | - '#document-fragment': root, |
12 | | - '#text': text, |
13 | | - '#comment': comment, |
14 | | - '#documentType': doctype |
15 | | -} |
16 | | - |
17 | | -// Wrapper to normalise options. |
18 | | -export function fromParse5(ast, options) { |
19 | | - var settings = options || {} |
20 | | - var file |
21 | | - |
22 | | - if (settings.messages) { |
23 | | - file = settings |
24 | | - settings = {} |
25 | | - } else { |
26 | | - file = settings.file |
27 | | - } |
28 | | - |
29 | | - return transform(ast, { |
30 | | - schema: settings.space === 'svg' ? svg : html, |
31 | | - file, |
32 | | - verbose: settings.verbose |
33 | | - }) |
34 | | -} |
35 | | - |
36 | | -// Transform a node. |
37 | | -function transform(ast, config) { |
38 | | - var schema = config.schema |
39 | | - var fn = own.call(map, ast.nodeName) ? map[ast.nodeName] : element |
40 | | - var children |
41 | | - var result |
42 | | - var position |
43 | | - |
44 | | - if (fn === element) { |
45 | | - config.schema = ast.namespaceURI === webNamespaces.svg ? svg : html |
46 | | - } |
47 | | - |
48 | | - if (ast.childNodes) { |
49 | | - children = nodes(ast.childNodes, config) |
50 | | - } |
51 | | - |
52 | | - result = fn(ast, children, config) |
53 | | - |
54 | | - if (ast.sourceCodeLocation && config.file) { |
55 | | - position = location(result, ast.sourceCodeLocation, config) |
56 | | - |
57 | | - if (position) { |
58 | | - config.location = true |
59 | | - result.position = position |
60 | | - } |
61 | | - } |
62 | | - |
63 | | - config.schema = schema |
64 | | - |
65 | | - return result |
66 | | -} |
67 | | - |
68 | | -// Transform children. |
69 | | -function nodes(children, config) { |
70 | | - var index = -1 |
71 | | - var result = [] |
72 | | - |
73 | | - while (++index < children.length) { |
74 | | - result[index] = transform(children[index], config) |
75 | | - } |
76 | | - |
77 | | - return result |
78 | | -} |
79 | | - |
80 | | -// Transform a document. |
81 | | -// Stores `ast.quirksMode` in `node.data.quirksMode`. |
82 | | -function root(ast, children, config) { |
83 | | - var result = { |
84 | | - type: 'root', |
85 | | - children, |
86 | | - data: {quirksMode: ast.mode === 'quirks' || ast.mode === 'limited-quirks'} |
87 | | - } |
88 | | - var doc |
89 | | - var location |
90 | | - |
91 | | - if (config.file && config.location) { |
92 | | - doc = String(config.file) |
93 | | - location = vfileLocation(doc) |
94 | | - result.position = { |
95 | | - start: location.toPoint(0), |
96 | | - end: location.toPoint(doc.length) |
97 | | - } |
98 | | - } |
99 | | - |
100 | | - return result |
101 | | -} |
102 | | - |
103 | | -// Transform a doctype. |
104 | | -function doctype(ast) { |
105 | | - return { |
106 | | - type: 'doctype', |
107 | | - name: ast.name || '', |
108 | | - public: ast.publicId || null, |
109 | | - system: ast.systemId || null |
110 | | - } |
111 | | -} |
112 | | - |
113 | | -// Transform a text. |
114 | | -function text(ast) { |
115 | | - return {type: 'text', value: ast.value} |
116 | | -} |
117 | | - |
118 | | -// Transform a comment. |
119 | | -function comment(ast) { |
120 | | - return {type: 'comment', value: ast.data} |
121 | | -} |
122 | | - |
123 | | -// Transform an element. |
124 | | -function element(ast, children, config) { |
125 | | - var fn = config.schema.space === 'svg' ? s : h |
126 | | - var props = {} |
127 | | - var index = -1 |
128 | | - var result |
129 | | - var attribute |
130 | | - var pos |
131 | | - var start |
132 | | - var end |
133 | | - |
134 | | - while (++index < ast.attrs.length) { |
135 | | - attribute = ast.attrs[index] |
136 | | - props[(attribute.prefix ? attribute.prefix + ':' : '') + attribute.name] = |
137 | | - attribute.value |
138 | | - } |
139 | | - |
140 | | - result = fn(ast.tagName, props, children) |
141 | | - |
142 | | - if (result.tagName === 'template' && 'content' in ast) { |
143 | | - pos = ast.sourceCodeLocation |
144 | | - start = pos && pos.startTag && position(pos.startTag).end |
145 | | - end = pos && pos.endTag && position(pos.endTag).start |
146 | | - |
147 | | - result.content = transform(ast.content, config) |
148 | | - |
149 | | - if ((start || end) && config.file) { |
150 | | - result.content.position = {start, end} |
151 | | - } |
152 | | - } |
153 | | - |
154 | | - return result |
155 | | -} |
156 | | - |
157 | | -// Create clean positional information. |
158 | | -function location(node, location, config) { |
159 | | - var result = position(location) |
160 | | - var tail |
161 | | - var key |
162 | | - var props |
163 | | - |
164 | | - if (node.type === 'element') { |
165 | | - tail = node.children[node.children.length - 1] |
166 | | - |
167 | | - // Bug for unclosed with children. |
168 | | - // See: <https://github.com/inikulin/parse5/issues/109>. |
169 | | - if (!location.endTag && tail && tail.position && tail.position.end) { |
170 | | - result.end = Object.assign({}, tail.position.end) |
171 | | - } |
172 | | - |
173 | | - if (config.verbose) { |
174 | | - props = {} |
175 | | - |
176 | | - for (key in location.attrs) { |
177 | | - if (own.call(location.attrs, key)) { |
178 | | - props[find(config.schema, key).property] = position( |
179 | | - location.attrs[key] |
180 | | - ) |
181 | | - } |
182 | | - } |
183 | | - |
184 | | - node.data = { |
185 | | - position: { |
186 | | - opening: position(location.startTag), |
187 | | - closing: location.endTag ? position(location.endTag) : null, |
188 | | - properties: props |
189 | | - } |
190 | | - } |
191 | | - } |
192 | | - } |
193 | | - |
194 | | - return result |
195 | | -} |
196 | | - |
197 | | -function position(loc) { |
198 | | - var start = point({ |
199 | | - line: loc.startLine, |
200 | | - column: loc.startCol, |
201 | | - offset: loc.startOffset |
202 | | - }) |
203 | | - var end = point({ |
204 | | - line: loc.endLine, |
205 | | - column: loc.endCol, |
206 | | - offset: loc.endOffset |
207 | | - }) |
208 | | - return start || end ? {start, end} : null |
209 | | -} |
210 | | - |
211 | | -function point(point) { |
212 | | - return point.line && point.column ? point : null |
213 | | -} |
| 5 | +export {fromParse5} from './lib/index.js' |
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