planning

node_modules/micromark/lib/tokenize/factory-destination.js

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+'use strict'
+
+var asciiControl = require('../character/ascii-control.js')
+var codes = require('../character/codes.js')
+var markdownLineEndingOrSpace = require('../character/markdown-line-ending-or-space.js')
+var markdownLineEnding = require('../character/markdown-line-ending.js')
+var constants = require('../constant/constants.js')
+var types = require('../constant/types.js')
+
+// eslint-disable-next-line max-params
+function destinationFactory(
+  effects,
+  ok,
+  nok,
+  type,
+  literalType,
+  literalMarkerType,
+  rawType,
+  stringType,
+  max
+) {
+  var limit = max || Infinity
+  var balance = 0
+
+  return start
+
+  function start(code) {
+    if (code === codes.lessThan) {
+      effects.enter(type)
+      effects.enter(literalType)
+      effects.enter(literalMarkerType)
+      effects.consume(code)
+      effects.exit(literalMarkerType)
+      return destinationEnclosedBefore
+    }
+
+    if (asciiControl(code) || code === codes.rightParenthesis) {
+      return nok(code)
+    }
+
+    effects.enter(type)
+    effects.enter(rawType)
+    effects.enter(stringType)
+    effects.enter(types.chunkString, {contentType: constants.contentTypeString})
+    return destinationRaw(code)
+  }
+
+  function destinationEnclosedBefore(code) {
+    if (code === codes.greaterThan) {
+      effects.enter(literalMarkerType)
+      effects.consume(code)
+      effects.exit(literalMarkerType)
+      effects.exit(literalType)
+      effects.exit(type)
+      return ok
+    }
+
+    effects.enter(stringType)
+    effects.enter(types.chunkString, {contentType: constants.contentTypeString})
+    return destinationEnclosed(code)
+  }
+
+  function destinationEnclosed(code) {
+    if (code === codes.greaterThan) {
+      effects.exit(types.chunkString)
+      effects.exit(stringType)
+      return destinationEnclosedBefore(code)
+    }
+
+    if (
+      code === codes.eof ||
+      code === codes.lessThan ||
+      markdownLineEnding(code)
+    ) {
+      return nok(code)
+    }
+
+    effects.consume(code)
+    return code === codes.backslash
+      ? destinationEnclosedEscape
+      : destinationEnclosed
+  }
+
+  function destinationEnclosedEscape(code) {
+    if (
+      code === codes.lessThan ||
+      code === codes.greaterThan ||
+      code === codes.backslash
+    ) {
+      effects.consume(code)
+      return destinationEnclosed
+    }
+
+    return destinationEnclosed(code)
+  }
+
+  function destinationRaw(code) {
+    if (code === codes.leftParenthesis) {
+      if (++balance > limit) return nok(code)
+      effects.consume(code)
+      return destinationRaw
+    }
+
+    if (code === codes.rightParenthesis) {
+      if (!balance--) {
+        effects.exit(types.chunkString)
+        effects.exit(stringType)
+        effects.exit(rawType)
+        effects.exit(type)
+        return ok(code)
+      }
+
+      effects.consume(code)
+      return destinationRaw
+    }
+
+    if (code === codes.eof || markdownLineEndingOrSpace(code)) {
+      if (balance) return nok(code)
+      effects.exit(types.chunkString)
+      effects.exit(stringType)
+      effects.exit(rawType)
+      effects.exit(type)
+      return ok(code)
+    }
+
+    if (asciiControl(code)) return nok(code)
+    effects.consume(code)
+    return code === codes.backslash ? destinationRawEscape : destinationRaw
+  }
+
+  function destinationRawEscape(code) {
+    if (
+      code === codes.leftParenthesis ||
+      code === codes.rightParenthesis ||
+      code === codes.backslash
+    ) {
+      effects.consume(code)
+      return destinationRaw
+    }
+
+    return destinationRaw(code)
+  }
+}
+
+module.exports = destinationFactory