transform-require.js
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// vue compiler module for transforming `<tag>:<attribute>` to `require`
const urlToRequire = require('../url-to-require')
const defaultOptions = {
video: ['src', 'poster'],
source: 'src',
img: 'src',
image: 'xlink:href'
}
module.exports = userOptions => {
const options = userOptions
? Object.assign({}, defaultOptions, userOptions)
: defaultOptions
return {
postTransformNode: node => {
transform(node, options)
}
}
}
function transform (node, options) {
for (const tag in options) {
if ((tag === '*' || node.tag === tag) && node.attrs) {
const attributes = options[tag]
if (typeof attributes === 'string') {
node.attrs.some(attr => rewrite(attr, attributes))
} else if (Array.isArray(attributes)) {
attributes.forEach(item => node.attrs.some(attr => rewrite(attr, item)))
}
}
}
}
function rewrite (attr, name) {
if (attr.name === name) {
const value = attr.value
// only transform static URLs
if (value.charAt(0) === '"' && value.charAt(value.length - 1) === '"') {
attr.value = urlToRequire(value.slice(1, -1))
return true
}
}
}