28 lines
952 B
JavaScript
28 lines
952 B
JavaScript
function resolveHtmlImage (tokens, idx) {
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let content = tokens[idx].content || ''
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content = content.replace(/<img\s+([^>]*?)src\s*=\s*(["'])([^\2>]+?)\2([^>]*)>/gm, (m, g1, g2, g3, g4) => {
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if (/^(http|\/\/|data:)/.test(g3)) {
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return m
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}
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return `<img ${g1}src="/_local_image_${encodeURIComponent(g3)}"${g4}>`
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})
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return content
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}
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function resolveImage (tokens, idx) {
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const src = tokens[idx].attrs[0][1]
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const alt = tokens[idx].content
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const resAttrs = tokens[idx].attrs.slice(2).reduce((pre, cur) => `${pre} ${cur[0]}=${cur[1]}`, '')
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if (/^(http|\/\/|data:)/.test(src)) {
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return `<img src="${src}" alt="${alt}" ${resAttrs} />`
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}
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return `<img src="/_local_image_${encodeURIComponent(src)}" alt="${alt}" ${resAttrs} />`
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}
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export default function localImage (md) {
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md.renderer.rules.image = resolveImage
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md.renderer.rules.html_block = resolveHtmlImage
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md.renderer.rules.html_inline = resolveHtmlImage
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}
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