mirror of
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385 lines
14 KiB
JavaScript
385 lines
14 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 Tokenizer = require("../tokenizer").Tokenizer;
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var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;
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var Behaviour = require("./behaviour").Behaviour;
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var unicode = require("../unicode");
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var lang = require("../lib/lang");
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var TokenIterator = require("../token_iterator").TokenIterator;
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var Range = require("../range").Range;
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var Mode = function() {
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this.HighlightRules = TextHighlightRules;
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this.$behaviour = new Behaviour();
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};
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(function() {
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this.tokenRe = new RegExp("^["
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+ unicode.packages.L
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+ unicode.packages.Mn + unicode.packages.Mc
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+ unicode.packages.Nd
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+ unicode.packages.Pc + "\\$_]+", "g"
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);
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this.nonTokenRe = new RegExp("^(?:[^"
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+ unicode.packages.L
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+ unicode.packages.Mn + unicode.packages.Mc
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+ unicode.packages.Nd
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+ unicode.packages.Pc + "\\$_]|\s])+", "g"
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);
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this.getTokenizer = function() {
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if (!this.$tokenizer) {
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this.$highlightRules = new this.HighlightRules();
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this.$tokenizer = new Tokenizer(this.$highlightRules.getRules());
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}
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return this.$tokenizer;
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};
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this.lineCommentStart = "";
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this.blockComment = "";
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this.toggleCommentLines = function(state, session, startRow, endRow) {
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var doc = session.doc;
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var ignoreBlankLines = true;
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var shouldRemove = true;
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var minIndent = Infinity;
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var tabSize = session.getTabSize();
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var insertAtTabStop = false;
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if (!this.lineCommentStart) {
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if (!this.blockComment)
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return false;
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var lineCommentStart = this.blockComment.start;
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var lineCommentEnd = this.blockComment.end;
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var regexpStart = new RegExp("^(\\s*)(?:" + lang.escapeRegExp(lineCommentStart) + ")");
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var regexpEnd = new RegExp("(?:" + lang.escapeRegExp(lineCommentEnd) + ")\\s*$");
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var comment = function(line, i) {
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if (testRemove(line, i))
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return;
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if (!ignoreBlankLines || /\S/.test(line)) {
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doc.insertInLine({row: i, column: line.length}, lineCommentEnd);
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doc.insertInLine({row: i, column: minIndent}, lineCommentStart);
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}
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};
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var uncomment = function(line, i) {
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var m;
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if (m = line.match(regexpEnd))
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doc.removeInLine(i, line.length - m[0].length, line.length);
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if (m = line.match(regexpStart))
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doc.removeInLine(i, m[1].length, m[0].length);
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};
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var testRemove = function(line, row) {
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if (regexpStart.test(line))
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return true;
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var tokens = session.getTokens(row);
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for (var i = 0; i < tokens.length; i++) {
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if (tokens[i].type === 'comment')
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return true;
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}
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};
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} else {
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if (Array.isArray(this.lineCommentStart)) {
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var regexpStart = this.lineCommentStart.map(lang.escapeRegExp).join("|");
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var lineCommentStart = this.lineCommentStart[0];
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} else {
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var regexpStart = lang.escapeRegExp(this.lineCommentStart);
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var lineCommentStart = this.lineCommentStart;
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}
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regexpStart = new RegExp("^(\\s*)(?:" + regexpStart + ") ?");
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insertAtTabStop = session.getUseSoftTabs();
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var uncomment = function(line, i) {
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var m = line.match(regexpStart);
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if (!m) return;
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var start = m[1].length, end = m[0].length;
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if (!shouldInsertSpace(line, start, end) && m[0][end - 1] == " ")
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end--;
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doc.removeInLine(i, start, end);
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};
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var commentWithSpace = lineCommentStart + " ";
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var comment = function(line, i) {
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if (!ignoreBlankLines || /\S/.test(line)) {
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if (shouldInsertSpace(line, minIndent, minIndent))
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doc.insertInLine({row: i, column: minIndent}, commentWithSpace);
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else
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doc.insertInLine({row: i, column: minIndent}, lineCommentStart);
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}
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};
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var testRemove = function(line, i) {
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return regexpStart.test(line);
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};
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var shouldInsertSpace = function(line, before, after) {
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var spaces = 0;
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while (before-- && line.charAt(before) == " ")
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spaces++;
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if (spaces % tabSize != 0)
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return false;
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var spaces = 0;
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while (line.charAt(after++) == " ")
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spaces++;
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if (tabSize > 2)
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return spaces % tabSize != tabSize - 1;
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else
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return spaces % tabSize == 0;
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return true;
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};
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}
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function iter(fun) {
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for (var i = startRow; i <= endRow; i++)
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fun(doc.getLine(i), i);
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}
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var minEmptyLength = Infinity;
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iter(function(line, i) {
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var indent = line.search(/\S/);
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if (indent !== -1) {
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if (indent < minIndent)
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minIndent = indent;
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if (shouldRemove && !testRemove(line, i))
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shouldRemove = false;
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} else if (minEmptyLength > line.length) {
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minEmptyLength = line.length;
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}
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});
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if (minIndent == Infinity) {
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minIndent = minEmptyLength;
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ignoreBlankLines = false;
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shouldRemove = false;
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}
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if (insertAtTabStop && minIndent % tabSize != 0)
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minIndent = Math.floor(minIndent / tabSize) * tabSize;
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iter(shouldRemove ? uncomment : comment);
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};
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this.toggleBlockComment = function(state, session, range, cursor) {
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var comment = this.blockComment;
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if (!comment)
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return;
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if (!comment.start && comment[0])
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comment = comment[0];
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var iterator = new TokenIterator(session, cursor.row, cursor.column);
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var token = iterator.getCurrentToken();
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var sel = session.selection;
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var initialRange = session.selection.toOrientedRange();
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var startRow, colDiff;
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if (token && /comment/.test(token.type)) {
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var startRange, endRange;
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while (token && /comment/.test(token.type)) {
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var i = token.value.indexOf(comment.start);
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if (i != -1) {
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var row = iterator.getCurrentTokenRow();
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var column = iterator.getCurrentTokenColumn() + i;
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startRange = new Range(row, column, row, column + comment.start.length);
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break
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}
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token = iterator.stepBackward();
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};
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var iterator = new TokenIterator(session, cursor.row, cursor.column);
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var token = iterator.getCurrentToken();
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while (token && /comment/.test(token.type)) {
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var i = token.value.indexOf(comment.end);
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if (i != -1) {
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var row = iterator.getCurrentTokenRow();
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var column = iterator.getCurrentTokenColumn() + i;
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endRange = new Range(row, column, row, column + comment.end.length);
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break;
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}
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token = iterator.stepForward();
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}
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if (endRange)
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session.remove(endRange);
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if (startRange) {
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session.remove(startRange);
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startRow = startRange.start.row;
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colDiff = -comment.start.length
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}
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} else {
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colDiff = comment.start.length
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startRow = range.start.row;
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session.insert(range.end, comment.end);
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session.insert(range.start, comment.start);
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}
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// todo: selection should have ended up in the right place automatically!
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if (initialRange.start.row == startRow)
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initialRange.start.column += colDiff;
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if (initialRange.end.row == startRow)
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initialRange.end.column += colDiff;
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session.selection.fromOrientedRange(initialRange);
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};
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this.getNextLineIndent = function(state, line, tab) {
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return this.$getIndent(line);
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};
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this.checkOutdent = function(state, line, input) {
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return false;
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};
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this.autoOutdent = function(state, doc, row) {
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};
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this.$getIndent = function(line) {
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return line.match(/^\s*/)[0];
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};
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this.createWorker = function(session) {
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return null;
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};
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this.createModeDelegates = function (mapping) {
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this.$embeds = [];
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this.$modes = {};
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for (var i in mapping) {
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if (mapping[i]) {
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this.$embeds.push(i);
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this.$modes[i] = new mapping[i]();
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}
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}
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var delegations = ['toggleCommentLines', 'getNextLineIndent', 'checkOutdent', 'autoOutdent', 'transformAction', 'getCompletions'];
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for (var i = 0; i < delegations.length; i++) {
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(function(scope) {
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var functionName = delegations[i];
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var defaultHandler = scope[functionName];
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scope[delegations[i]] = function() {
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return this.$delegator(functionName, arguments, defaultHandler);
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}
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} (this));
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}
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};
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this.$delegator = function(method, args, defaultHandler) {
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var state = args[0];
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if (typeof state != "string")
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state = state[0];
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for (var i = 0; i < this.$embeds.length; i++) {
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if (!this.$modes[this.$embeds[i]]) continue;
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var split = state.split(this.$embeds[i]);
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if (!split[0] && split[1]) {
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args[0] = split[1];
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var mode = this.$modes[this.$embeds[i]];
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return mode[method].apply(mode, args);
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}
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}
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var ret = defaultHandler.apply(this, args);
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return defaultHandler ? ret : undefined;
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};
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this.transformAction = function(state, action, editor, session, param) {
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if (this.$behaviour) {
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var behaviours = this.$behaviour.getBehaviours();
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for (var key in behaviours) {
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if (behaviours[key][action]) {
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var ret = behaviours[key][action].apply(this, arguments);
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if (ret) {
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return ret;
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}
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}
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}
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}
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};
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this.getKeywords = function(append) {
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// this is for autocompletion to pick up regexp'ed keywords
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if (!this.completionKeywords) {
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var rules = this.$tokenizer.rules;
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var completionKeywords = [];
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for (var rule in rules) {
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var ruleItr = rules[rule];
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for (var r = 0, l = ruleItr.length; r < l; r++) {
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if (typeof ruleItr[r].token === "string") {
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if (/keyword|support|storage/.test(ruleItr[r].token))
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completionKeywords.push(ruleItr[r].regex);
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}
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else if (typeof ruleItr[r].token === "object") {
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for (var a = 0, aLength = ruleItr[r].token.length; a < aLength; a++) {
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if (/keyword|support|storage/.test(ruleItr[r].token[a])) {
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// drop surrounding parens
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var rule = ruleItr[r].regex.match(/\(.+?\)/g)[a];
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completionKeywords.push(rule.substr(1, rule.length - 2));
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}
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}
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}
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}
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}
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this.completionKeywords = completionKeywords;
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}
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// this is for highlighting embed rules, like HAML/Ruby or Obj-C/C
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if (!append)
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return this.$keywordList;
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return completionKeywords.concat(this.$keywordList || []);
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};
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this.$createKeywordList = function() {
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if (!this.$highlightRules)
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this.getTokenizer();
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return this.$keywordList = this.$highlightRules.$keywordList || [];
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}
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this.getCompletions = function(state, session, pos, prefix) {
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var keywords = this.$keywordList || this.$createKeywordList();
|
||
|
|
return keywords.map(function(word) {
|
||
|
|
return {
|
||
|
|
name: word,
|
||
|
|
value: word,
|
||
|
|
score: 0,
|
||
|
|
meta: "keyword"
|
||
|
|
};
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
}).call(Mode.prototype);
|
||
|
|
|
||
|
|
exports.Mode = Mode;
|
||
|
|
});
|