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23 lines
611 B
JavaScript

const visit = require('unist-util-visit')
module.exports = ({ markdownAST }, { width = '1024px', height = '473px' } = {}) => {
visit(markdownAST, 'text', node => {
const { value } = node
const match = /https:\/\/carbon\.now\.sh\/{0,1}(.*)/.exec(value)
if (match) {
const url = match[1]
node.type = 'html'
node.value = `<iframe
src="https://carbon.now.sh/embed${url}"
width="${width}"
height="${height}"
frameborder="0"
style="transform:scale(0.7); border: 0; overflow:hidden;"
sandbox="allow-scripts allow-same-origin">
</iframe>`
}
})
return markdownAST
}