Incs/codemirror/mode/jsx/jsx.js

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// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"), require("../xml/xml"), require("../javascript/javascript"))
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror", "../xml/xml", "../javascript/javascript"], mod)
  else // Plain browser env
    mod(CodeMirror)
})(function(CodeMirror) {
  "use strict"

  // Depth means the amount of open braces in JS context, in XML
  // context 0 means not in tag, 1 means in tag, and 2 means in tag
  // and js block comment.
  function Context(state, mode, depth, prev) {
    this.state = state; this.mode = mode; this.depth = depth; this.prev = prev
  }

  function copyContext(context) {
    return new Context(CodeMirror.copyState(context.mode, context.state),
                       context.mode,
                       context.depth,
                       context.prev && copyContext(context.prev))
  }

  CodeMirror.defineMode("jsx", function(config, modeConfig) {
    var xmlMode = CodeMirror.getMode(config, {name: "xml", allowMissing: true, multilineTagIndentPastTag: false, allowMissingTagName: true})
    var jsMode = CodeMirror.getMode(config, modeConfig && modeConfig.base || "javascript")

    function flatXMLIndent(state) {
      var tagName = state.tagName
      state.tagName = null
      var result = xmlMode.indent(state, "")
      state.tagName = tagName
      return result
    }

    function token(stream, state) {
      if (state.context.mode == xmlMode)
        return xmlToken(stream, state, state.context)
      else
        return jsToken(stream, state, state.context)
    }

    function xmlToken(stream, state, cx) {
      if (cx.depth == 2) { // Inside a JS /* */ comment
        if (stream.match(/^.*?\*\//)) cx.depth = 1
        else stream.skipToEnd()
        return "comment"
      }

      if (stream.peek() == "{") {
        xmlMode.skipAttribute(cx.state)

        var indent = flatXMLIndent(cx.state), xmlContext = cx.state.context
        // If JS starts on same line as tag
        if (xmlContext && stream.match(/^[^>]*>\s*$/, false)) {
          while (xmlContext.prev && !xmlContext.startOfLine)