| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119 | // 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"));  else if (typeof define == "function" && define.amd) // AMD    define(["../../lib/codemirror"], mod);  else // Plain browser env    mod(CodeMirror);})(function(CodeMirror) {"use strict";function bracketFolding(pairs) {  return function(cm, start) {    var line = start.line, lineText = cm.getLine(line);    function findOpening(pair) {      var tokenType;      for (var at = start.ch, pass = 0;;) {        var found = at <= 0 ? -1 : lineText.lastIndexOf(pair[0], at - 1);        if (found == -1) {          if (pass == 1) break;          pass = 1;          at = lineText.length;          continue;        }        if (pass == 1 && found < start.ch) break;        tokenType = cm.getTokenTypeAt(CodeMirror.Pos(line, found + 1));        if (!/^(comment|string)/.test(tokenType)) return {ch: found + 1, tokenType: tokenType, pair: pair};        at = found - 1;      }    }    function findRange(found) {      var count = 1, lastLine = cm.lastLine(), end, startCh = found.ch, endCh      outer: for (var i = line; i <= lastLine; ++i) {        var text = cm.getLine(i), pos = i == line ? startCh : 0;        for (;;) {          var nextOpen = text.indexOf(found.pair[0], pos), nextClose = text.indexOf(found.pair[1], pos);          if (nextOpen < 0) nextOpen = text.length;          if (nextClose < 0) nextClose = text.length;          pos = Math.min(nextOpen, nextClose);          if (pos == text.length) break;          if (cm.getTokenTypeAt(CodeMirror.Pos(i, pos + 1)) == found.tokenType) {            if (pos == nextOpen) ++count;            else if (!--count) { end = i; endCh = pos; break outer; }          }          ++pos;        }      }      if (end == null || line == end) return null      return {from: CodeMirror.Pos(line, startCh),              to: CodeMirror.Pos(end, endCh)};    }    var found = []    for (var i = 0; i < pairs.length; i++) {      var open = findOpening(pairs[i])      if (open) found.push(open)    }    found.sort(function(a, b) { return a.ch - b.ch })    for (var i = 0; i < found.length; i++) {      var range = findRange(found[i])      if (range) return range    }    return null  }}CodeMirror.registerHelper("fold", "brace", bracketFolding([["{", "}"], ["[", "]"]]));CodeMirror.registerHelper("fold", "brace-paren", bracketFolding([["{", "}"], ["[", "]"], ["(", ")"]]));CodeMirror.registerHelper("fold", "import", function(cm, start) {  function hasImport(line) {    if (line < cm.firstLine() || line > cm.lastLine()) return null;    var start = cm.getTokenAt(CodeMirror.Pos(line, 1));    if (!/\S/.test(start.string)) start = cm.getTokenAt(CodeMirror.Pos(line, start.end + 1));    if (start.type != "keyword" || start.string != "import") return null;    // Now find closing semicolon, return its position    for (var i = line, e = Math.min(cm.lastLine(), line + 10); i <= e; ++i) {      var text = cm.getLine(i), semi = text.indexOf(";");      if (semi != -1) return {startCh: start.end, end: CodeMirror.Pos(i, semi)};    }  }  var startLine = start.line, has = hasImport(startLine), prev;  if (!has || hasImport(startLine - 1) || ((prev = hasImport(startLine - 2)) && prev.end.line == startLine - 1))    return null;  for (var end = has.end;;) {    var next = hasImport(end.line + 1);    if (next == null) break;    end = next.end;  }  return {from: cm.clipPos(CodeMirror.Pos(startLine, has.startCh + 1)), to: end};});CodeMirror.registerHelper("fold", "include", function(cm, start) {  function hasInclude(line) {    if (line < cm.firstLine() || line > cm.lastLine()) return null;    var start = cm.getTokenAt(CodeMirror.Pos(line, 1));    if (!/\S/.test(start.string)) start = cm.getTokenAt(CodeMirror.Pos(line, start.end + 1));    if (start.type == "meta" && start.string.slice(0, 8) == "#include") return start.start + 8;  }  var startLine = start.line, has = hasInclude(startLine);  if (has == null || hasInclude(startLine - 1) != null) return null;  for (var end = startLine;;) {    var next = hasInclude(end + 1);    if (next == null) break;    ++end;  }  return {from: CodeMirror.Pos(startLine, has + 1),          to: cm.clipPos(CodeMirror.Pos(end))};});});
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