183 lines
6.2 KiB
JavaScript
183 lines
6.2 KiB
JavaScript
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/* ***** BEGIN LICENSE BLOCK *****
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* Distributed under the BSD license:
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*
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* Copyright (c) 2010, Ajax.org B.V.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Ajax.org B.V. nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ***** END LICENSE BLOCK ***** */
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define(function(require, exports, module) {
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"use strict";
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var oop = require("../lib/oop");
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var TextMode = require("./text").Mode;
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var LuaHighlightRules = require("./lua_highlight_rules").LuaHighlightRules;
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var LuaFoldMode = require("./folding/lua").FoldMode;
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var Range = require("../range").Range;
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var WorkerClient = require("../worker/worker_client").WorkerClient;
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var Mode = function() {
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this.HighlightRules = LuaHighlightRules;
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this.foldingRules = new LuaFoldMode();
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this.$behaviour = this.$defaultBehaviour;
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};
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oop.inherits(Mode, TextMode);
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(function() {
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this.lineCommentStart = "--";
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this.blockComment = {start: "--[", end: "]--"};
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var indentKeywords = {
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"function": 1,
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"then": 1,
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"do": 1,
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"else": 1,
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"elseif": 1,
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"repeat": 1,
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"end": -1,
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"until": -1
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};
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var outdentKeywords = [
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"else",
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"elseif",
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"end",
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"until"
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];
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function getNetIndentLevel(tokens) {
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var level = 0;
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// Support single-line blocks by decrementing the indent level if
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// an ending token is found
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for (var i = 0; i < tokens.length; i++) {
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var token = tokens[i];
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if (token.type == "keyword") {
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if (token.value in indentKeywords) {
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level += indentKeywords[token.value];
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}
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} else if (token.type == "paren.lparen") {
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level += token.value.length;
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} else if (token.type == "paren.rparen") {
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level -= token.value.length;
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}
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}
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// Limit the level to +/- 1 since usually users only indent one level
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// at a time regardless of the logical nesting level
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if (level < 0) {
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return -1;
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} else if (level > 0) {
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return 1;
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} else {
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return 0;
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}
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}
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this.getNextLineIndent = function(state, line, tab) {
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var indent = this.$getIndent(line);
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var level = 0;
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var tokenizedLine = this.getTokenizer().getLineTokens(line, state);
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var tokens = tokenizedLine.tokens;
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if (state == "start") {
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level = getNetIndentLevel(tokens);
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}
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if (level > 0) {
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return indent + tab;
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} else if (level < 0 && indent.substr(indent.length - tab.length) == tab) {
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// Don't do a next-line outdent if we're going to do a real outdent of this line
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if (!this.checkOutdent(state, line, "\n")) {
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return indent.substr(0, indent.length - tab.length);
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}
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}
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return indent;
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};
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this.checkOutdent = function(state, line, input) {
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if (input != "\n" && input != "\r" && input != "\r\n")
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return false;
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if (line.match(/^\s*[\)\}\]]$/))
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return true;
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var tokens = this.getTokenizer().getLineTokens(line.trim(), state).tokens;
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if (!tokens || !tokens.length)
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return false;
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return (tokens[0].type == "keyword" && outdentKeywords.indexOf(tokens[0].value) != -1);
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};
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this.getMatching = function(session, row, column) {
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if (row == undefined) {
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var pos = session.selection.lead;
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column = pos.column;
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row = pos.row;
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}
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var startToken = session.getTokenAt(row, column);
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if (startToken && startToken.value in indentKeywords)
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return this.foldingRules.luaBlock(session, row, column, true);
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};
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this.autoOutdent = function(state, session, row) {
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var line = session.getLine(row);
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var column = line.match(/^\s*/)[0].length;
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if (!column || !row) return;
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var startRange = this.getMatching(session, row, column + 1);
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if (!startRange || startRange.start.row == row)
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return;
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var indent = this.$getIndent(session.getLine(startRange.start.row));
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if (indent.length != column) {
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session.replace(new Range(row, 0, row, column), indent);
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session.outdentRows(new Range(row + 1, 0, row + 1, 0));
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}
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};
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this.createWorker = function(session) {
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var worker = new WorkerClient(["ace"], "ace/mode/lua_worker", "Worker");
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worker.attachToDocument(session.getDocument());
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worker.on("annotate", function(e) {
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session.setAnnotations(e.data);
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});
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worker.on("terminate", function() {
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session.clearAnnotations();
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});
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return worker;
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};
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this.$id = "ace/mode/lua";
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}).call(Mode.prototype);
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exports.Mode = Mode;
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});
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