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79 lines
3.0 KiB
79 lines
3.0 KiB
// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: https://codemirror.net/LICENSE
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(function(mod) {
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if (typeof exports == "object" && typeof module == "object") // CommonJS
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mod(require("../../lib/codemirror"));
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else if (typeof define == "function" && define.amd) // AMD
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define(["../../lib/codemirror"], mod);
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else // Plain browser env
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mod(CodeMirror);
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})(function(CodeMirror) {
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function continueComment(cm) {
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if (cm.getOption("disableInput")) return CodeMirror.Pass;
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var ranges = cm.listSelections(), mode, inserts = [];
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for (var i = 0; i < ranges.length; i++) {
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var pos = ranges[i].head
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if (!/\bcomment\b/.test(cm.getTokenTypeAt(pos))) return CodeMirror.Pass;
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var modeHere = cm.getModeAt(pos)
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if (!mode) mode = modeHere;
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else if (mode != modeHere) return CodeMirror.Pass;
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var insert = null;
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if (mode.blockCommentStart && mode.blockCommentContinue) {
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var line = cm.getLine(pos.line).slice(0, pos.ch)
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var end = line.lastIndexOf(mode.blockCommentEnd), found
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if (end != -1 && end == pos.ch - mode.blockCommentEnd.length) {
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// Comment ended, don't continue it
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} else if ((found = line.lastIndexOf(mode.blockCommentStart)) > -1 && found > end) {
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insert = line.slice(0, found)
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if (/\S/.test(insert)) {
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insert = ""
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for (var j = 0; j < found; ++j) insert += " "
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}
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} else if ((found = line.indexOf(mode.blockCommentContinue)) > -1 && !/\S/.test(line.slice(0, found))) {
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insert = line.slice(0, found)
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}
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if (insert != null) insert += mode.blockCommentContinue
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}
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if (insert == null && mode.lineComment && continueLineCommentEnabled(cm)) {
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var line = cm.getLine(pos.line), found = line.indexOf(mode.lineComment);
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if (found > -1) {
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insert = line.slice(0, found);
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if (/\S/.test(insert)) insert = null;
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else insert += mode.lineComment + line.slice(found + mode.lineComment.length).match(/^\s*/)[0];
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}
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}
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if (insert == null) return CodeMirror.Pass;
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inserts[i] = "\n" + insert;
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}
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cm.operation(function() {
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for (var i = ranges.length - 1; i >= 0; i--)
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cm.replaceRange(inserts[i], ranges[i].from(), ranges[i].to(), "+insert");
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});
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}
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function continueLineCommentEnabled(cm) {
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var opt = cm.getOption("continueComments");
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if (opt && typeof opt == "object")
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return opt.continueLineComment !== false;
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return true;
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}
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CodeMirror.defineOption("continueComments", null, function(cm, val, prev) {
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if (prev && prev != CodeMirror.Init)
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cm.removeKeyMap("continueComment");
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if (val) {
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var key = "Enter";
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if (typeof val == "string")
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key = val;
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else if (typeof val == "object" && val.key)
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key = val.key;
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var map = {name: "continueComment"};
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map[key] = continueComment;
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cm.addKeyMap(map);
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}
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});
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});
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