Upstream spencermountain/compromise state of the touched files before 642fe4f40a

src/1-one/output/api/html.js

@@ -0,0 +1,77 @@
+const isClass = /^\../
+const isId = /^#./
+
+const escapeXml = str => {
+  str = str.replaceAll('&', '&')
+  str = str.replaceAll('<', '&lt;')
+  str = str.replaceAll('>', '&gt;')
+  str = str.replaceAll('"', '&quot;')
+  str = str.replaceAll("'", '&apos;')
+  return str
+}
+
+// interpret .class, #id, tagName
+const toTag = function (k) {
+  let start = ''
+  let end = '</span>'
+  k = escapeXml(k)
+  if (isClass.test(k)) {
+    start = `<span class="${k.replace(/^\./, '')}"`
+  } else if (isId.test(k)) {
+    start = `<span id="${k.replace(/^#/, '')}"`
+  } else {
+    start = `<${k}`
+    end = `</${k}>`
+  }
+  start += '>'
+  return { start, end }
+}
+
+const getIndex = function (doc, obj) {
+  const starts = {}
+  const ends = {}
+  Object.keys(obj).forEach(k => {
+    let res = obj[k]
+    const tag = toTag(k)
+    if (typeof res === 'string') {
+      res = doc.match(res)
+    }
+    res.docs.forEach(terms => {
+      // don't highlight implicit terms
+      if (terms.every(t => t.implicit)) {
+        return
+      }
+      const a = terms[0].id
+      starts[a] ||= []
+      starts[a].push(tag.start)
+      const b = terms.at(-1).id
+      ends[b] ||= []
+      ends[b].push(tag.end)
+    })
+  })
+  return { starts, ends }
+}
+
+const html = function (obj) {
+  // index ids to highlight
+  const { starts, ends } = getIndex(this, obj)
+  // create the text output
+  let out = ''
+  this.docs.forEach(terms => {
+    for (let i = 0; i < terms.length; i += 1) {
+      const t = terms[i]
+      // do a span tag
+      if (Object.hasOwn(starts, t.id)) {
+        out += starts[t.id].join('')
+      }
+      out += t.pre || ''
+      out += t.text || ''
+      if (Object.hasOwn(ends, t.id)) {
+        out += ends[t.id].join('')
+      }
+      out += t.post || ''
+    }
+  })
+  return out
+}
+export default { html }