code-block-folding.js

code-block-folding.js

/* eslint-disable */

  (function(mod) {
  mod(require("codemirror"));
})(function(CodeMirror) {
  "use strict";

  CodeMirror.registerHelper("fold", "codeBlock", function(cm, start) {
    var firstLine = cm.getLine(start.line);
    var spaceTo = firstLine.search(/^::: [a-z]+/);
    if (spaceTo === -1) {
      return;
    }

    var lastLineNo = cm.lastLine();
    var end = start.line, nextLine = cm.getLine(start.line + 1);
    while (end < lastLineNo) {
      if (nextLine.search(/^:::$/) > -1) {
        break;
      }
      ++end;
      nextLine = cm.getLine(end);
    }

    return {
      from: CodeMirror.Pos(start.line, firstLine.length),
      to: CodeMirror.Pos(end, cm.getLine(end).length)
    };
  });

});