add support to abbreviations, subscript text, superscript text and definition lists

browser/components/markdown.styl

@@ -371,6 +371,35 @@ for name, val in admonition_types
         color: val[color]
         content: val[icon]
 
+dl
+  margin 2em 0
+  padding 0
+  display flex
+  width 100%
+  flex-wrap wrap
+  align-items flex-start
+  border-bottom 1px solid borderColor
+  background-color tableHeadBgColor
+
+dt
+  border-top 1px solid borderColor
+  font-weight bold
+  text-align right
+  overflow hidden
+  flex-basis 18%
+  padding 1%
+
+dd
+  border-top 1px solid borderColor
+  flex-basis 78%
+  max-width 78%
+  padding 1%
+  min-height 1.55em
+  background-color $ui-noteDetail-backgroundColor
+
+dd + dd
+  margin-left 20%
+
 themeDarkBackground = darken(#21252B, 10%)
 themeDarkText = #f9f9f9
 themeDarkBorder = lighten(themeDarkBackground, 20%)
@@ -421,6 +450,14 @@ body[data-theme="dark"]
   kbd
     background-color themeDarkBorder
     color themeDarkText
+  dl
+    border-color themeDarkBorder
+    background-color themeDarkTableHead
+  dt
+    border-color themeDarkBorder
+  dd
+    border-color themeDarkBorder
+    background-color themeDarkPreview
 
 themeSolarizedDarkTableOdd = $ui-solarized-dark-noteDetail-backgroundColor
 themeSolarizedDarkTableEven = darken($ui-solarized-dark-noteDetail-backgroundColor, 10%)
@@ -448,6 +485,14 @@ body[data-theme="solarized-dark"]
         border-color themeSolarizedDarkTableBorder
         &:last-child
           border-right solid 1px themeSolarizedDarkTableBorder
+  dl
+    border-color themeDarkBorder
+    background-color themeSolarizedDarkTableHead
+  dt
+    border-color themeDarkBorder
+  dd
+    border-color themeDarkBorder
+    background-color $ui-solarized-dark-noteDetail-backgroundColor
 
 themeMonokaiTableOdd = $ui-monokai-noteDetail-backgroundColor
 themeMonokaiTableEven = darken($ui-monokai-noteDetail-backgroundColor, 10%)
@@ -477,3 +522,11 @@ body[data-theme="monokai"]
           border-right solid 1px themeMonokaiTableBorder
   kbd
     background-color themeDarkBackground
+  dl
+    border-color themeDarkBorder
+    background-color themeMonokaiTableHead
+  dt
+    border-color themeDarkBorder
+  dd
+    border-color themeDarkBorder
+    background-color $ui-monokai-noteDetail-backgroundColor

browser/lib/markdown-it-deflist.js

@@ -0,0 +1,221 @@
+'use strict'
+
+module.exports = function definitionListPlugin (md) {
+  var isSpace = md.utils.isSpace
+
+  // Search `[:~][\n ]`, returns next pos after marker on success
+  // or -1 on fail.
+  function skipMarker (state, line) {
+    let start = state.bMarks[line] + state.tShift[line]
+    const max = state.eMarks[line]
+
+    if (start >= max) { return -1 }
+
+    // Check bullet
+    const marker = state.src.charCodeAt(start++)
+    if (marker !== 0x7E/* ~ */ && marker !== 0x3A/* : */) { return -1 }
+
+    const pos = state.skipSpaces(start)
+
+    // require space after ":"
+    if (start === pos) { return -1 }
+
+    return start
+  }
+
+  function markTightParagraphs (state, idx) {
+    const level = state.level + 2
+
+    let i
+    let l
+    for (i = idx + 2, l = state.tokens.length - 2; i < l; i++) {
+      if (state.tokens[i].level === level && state.tokens[i].type === 'paragraph_open') {
+        state.tokens[i + 2].hidden = true
+        state.tokens[i].hidden = true
+        i += 2
+      }
+    }
+  }
+
+  function deflist (state, startLine, endLine, silent) {
+    var ch,
+      contentStart,
+      ddLine,
+      dtLine,
+      itemLines,
+      listLines,
+      listTokIdx,
+      max,
+      nextLine,
+      offset,
+      oldDDIndent,
+      oldIndent,
+      oldParentType,
+      oldSCount,
+      oldTShift,
+      oldTight,
+      pos,
+      prevEmptyEnd,
+      tight,
+      token
+
+    if (silent) {
+      // quirk: validation mode validates a dd block only, not a whole deflist
+      if (state.ddIndent < 0) { return false }
+      return skipMarker(state, startLine) >= 0
+    }
+
+    nextLine = startLine + 1
+    if (nextLine >= endLine) { return false }
+
+    if (state.isEmpty(nextLine)) {
+      nextLine++
+      if (nextLine >= endLine) { return false }
+    }
+
+    if (state.sCount[nextLine] < state.blkIndent) { return false }
+    contentStart = skipMarker(state, nextLine)
+    if (contentStart < 0) { return false }
+
+    // Start list
+    listTokIdx = state.tokens.length
+    tight = true
+
+    token = state.push('dl_open', 'dl', 1)
+    token.map = listLines = [ startLine, 0 ]
+
+    //
+    // Iterate list items
+    //
+
+    dtLine = startLine
+    ddLine = nextLine
+
+    // One definition list can contain multiple DTs,
+    // and one DT can be followed by multiple DDs.
+    //
+    // Thus, there is two loops here, and label is
+    // needed to break out of the second one
+    //
+    /* eslint no-labels:0,block-scoped-var:0 */
+    OUTER:
+    for (;;) {
+      prevEmptyEnd = false
+
+      token = state.push('dt_open', 'dt', 1)
+      token.map = [ dtLine, dtLine ]
+
+      token = state.push('inline', '', 0)
+      token.map = [ dtLine, dtLine ]
+      token.content = state.getLines(dtLine, dtLine + 1, state.blkIndent, false).trim()
+      token.children = []
+
+      token = state.push('dt_close', 'dt', -1)
+
+      for (;;) {
+        token = state.push('dd_open', 'dd', 1)
+        token.map = itemLines = [ nextLine, 0 ]
+
+        pos = contentStart
+        max = state.eMarks[ddLine]
+        offset = state.sCount[ddLine] + contentStart - (state.bMarks[ddLine] + state.tShift[ddLine])
+
+        while (pos < max) {
+          ch = state.src.charCodeAt(pos)
+
+          if (isSpace(ch)) {
+            if (ch === 0x09) {
+              offset += 4 - offset % 4
+            } else {
+              offset++
+            }
+          } else {
+            break
+          }
+
+          pos++
+        }
+
+        contentStart = pos
+
+        oldTight = state.tight
+        oldDDIndent = state.ddIndent
+        oldIndent = state.blkIndent
+        oldTShift = state.tShift[ddLine]
+        oldSCount = state.sCount[ddLine]
+        oldParentType = state.parentType
+        state.blkIndent = state.ddIndent = state.sCount[ddLine] + 2
+        state.tShift[ddLine] = contentStart - state.bMarks[ddLine]
+        state.sCount[ddLine] = offset
+        state.tight = true
+        state.parentType = 'deflist'
+
+        state.md.block.tokenize(state, ddLine, endLine, true)
+
+        // If any of list item is tight, mark list as tight
+        if (!state.tight || prevEmptyEnd) {
+          tight = false
+        }
+        // Item become loose if finish with empty line,
+        // but we should filter last element, because it means list finish
+        prevEmptyEnd = (state.line - ddLine) > 1 && state.isEmpty(state.line - 1)
+
+        state.tShift[ddLine] = oldTShift
+        state.sCount[ddLine] = oldSCount
+        state.tight = oldTight
+        state.parentType = oldParentType
+        state.blkIndent = oldIndent
+        state.ddIndent = oldDDIndent
+
+        token = state.push('dd_close', 'dd', -1)
+
+        itemLines[1] = nextLine = state.line
+
+        if (nextLine >= endLine) { break OUTER }
+
+        if (state.sCount[nextLine] < state.blkIndent) { break OUTER }
+        contentStart = skipMarker(state, nextLine)
+        if (contentStart < 0) { break }
+
+        ddLine = nextLine
+
+        // go to the next loop iteration:
+        // insert DD tag and repeat checking
+      }
+
+      if (nextLine >= endLine) { break }
+      dtLine = nextLine
+
+      if (state.isEmpty(dtLine)) { break }
+      if (state.sCount[dtLine] < state.blkIndent) { break }
+
+      ddLine = dtLine + 1
+      if (ddLine >= endLine) { break }
+      if (state.isEmpty(ddLine)) { ddLine++ }
+      if (ddLine >= endLine) { break }
+
+      if (state.sCount[ddLine] < state.blkIndent) { break }
+      contentStart = skipMarker(state, ddLine)
+      if (contentStart < 0) { break }
+
+      // go to the next loop iteration:
+      // insert DT and DD tags and repeat checking
+    }
+
+    // Finilize list
+    token = state.push('dl_close', 'dl', -1)
+
+    listLines[1] = nextLine
+
+    state.line = nextLine
+
+    // mark paragraphs tight if needed
+    if (tight) {
+      markTightParagraphs(state, listTokIdx)
+    }
+
+    return true
+  }
+
+  md.block.ruler.before('paragraph', 'deflist', deflist, { alt: [ 'paragraph', 'reference' ] })
+}

browser/lib/markdown.js

@@ -149,6 +149,10 @@ class Markdown {
     })
     this.md.use(require('markdown-it-kbd'))
     this.md.use(require('markdown-it-admonition'))
+    this.md.use(require('markdown-it-abbr'))
+    this.md.use(require('markdown-it-sub'))
+    this.md.use(require('markdown-it-sup'))
+    this.md.use(require('./markdown-it-deflist'))
 
     const deflate = require('markdown-it-plantuml/lib/deflate')
     this.md.use(require('markdown-it-plantuml'), '', {

package.json

@@ -71,6 +71,7 @@
     "lodash": "^4.11.1",
     "lodash-move": "^1.1.1",
     "markdown-it": "^6.0.1",
+    "markdown-it-abbr": "^1.0.4",
     "markdown-it-admonition": "^1.0.4",
     "markdown-it-emoji": "^1.1.1",
     "markdown-it-footnote": "^3.0.0",
@@ -80,6 +81,8 @@
     "markdown-it-named-headers": "^0.0.4",
     "markdown-it-plantuml": "^1.1.0",
     "markdown-it-smartarrows": "^1.0.1",
+    "markdown-it-sub": "^1.0.0",
+    "markdown-it-sup": "^1.0.0",
     "mdurl": "^1.0.1",
     "mermaid": "^8.0.0-rc.8",
     "moment": "^2.10.3",

yarn.lock

@@ -5723,6 +5723,10 @@ map-visit@^1.0.0:
   dependencies:
     object-visit "^1.0.0"
 
+markdown-it-abbr@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/markdown-it-abbr/-/markdown-it-abbr-1.0.4.tgz#d66b5364521cbb3dd8aa59dadfba2fb6865c8fd8"
+
 markdown-it-admonition@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/markdown-it-admonition/-/markdown-it-admonition-1.0.4.tgz#d7bbc7eb1fe6168fc8cc304de7a9d8c993acb2f5"
@@ -5763,6 +5767,14 @@ markdown-it-smartarrows@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/markdown-it-smartarrows/-/markdown-it-smartarrows-1.0.1.tgz#b570e9c0ff9812e0db6ace19afa5ba12b64bb9a7"
 
+markdown-it-sub@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/markdown-it-sub/-/markdown-it-sub-1.0.0.tgz#375fd6026eae7ddcb012497f6411195ea1e3afe8"
+
+markdown-it-sup@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/markdown-it-sup/-/markdown-it-sup-1.0.0.tgz#cb9c9ff91a5255ac08f3fd3d63286e15df0a1fc3"
+
 markdown-it@^5.0.3:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/markdown-it/-/markdown-it-5.1.0.tgz#25286b8465bac496f3f1b77eed544643e9bd718d"