planning

node_modules/micromark/lib/initialize/flow.mjs

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+export var tokenize = initializeFlow
+
+import assert from 'assert'
+import codes from '../character/codes.mjs'
+import markdownLineEnding from '../character/markdown-line-ending.mjs'
+import types from '../constant/types.mjs'
+import content from '../tokenize/content.mjs'
+import spaceFactory from '../tokenize/factory-space.mjs'
+import blank from '../tokenize/partial-blank-line.mjs'
+
+function initializeFlow(effects) {
+  var self = this
+  var initial = effects.attempt(
+    // Try to parse a blank line.
+    blank,
+    atBlankEnding,
+    // Try to parse initial flow (essentially, only code).
+    effects.attempt(
+      this.parser.constructs.flowInitial,
+      afterConstruct,
+      spaceFactory(
+        effects,
+        effects.attempt(
+          this.parser.constructs.flow,
+          afterConstruct,
+          effects.attempt(content, afterConstruct)
+        ),
+        types.linePrefix
+      )
+    )
+  )
+
+  return initial
+
+  function atBlankEnding(code) {
+    assert(
+      code === codes.eof || markdownLineEnding(code),
+      'expected eol or eof'
+    )
+
+    if (code === codes.eof) {
+      effects.consume(code)
+      return
+    }
+
+    effects.enter(types.lineEndingBlank)
+    effects.consume(code)
+    effects.exit(types.lineEndingBlank)
+    self.currentConstruct = undefined
+    return initial
+  }
+
+  function afterConstruct(code) {
+    assert(
+      code === codes.eof || markdownLineEnding(code),
+      'expected eol or eof'
+    )
+
+    if (code === codes.eof) {
+      effects.consume(code)
+      return
+    }
+
+    effects.enter(types.lineEnding)
+    effects.consume(code)
+    effects.exit(types.lineEnding)
+    self.currentConstruct = undefined
+    return initial
+  }
+}