403 lines
17 KiB
JavaScript
403 lines
17 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 Behaviour = require("../behaviour").Behaviour;
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var TokenIterator = require("../../token_iterator").TokenIterator;
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var lang = require("../../lib/lang");
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var SAFE_INSERT_IN_TOKENS =
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["text", "paren.rparen", "punctuation.operator"];
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var SAFE_INSERT_BEFORE_TOKENS =
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["text", "paren.rparen", "punctuation.operator", "comment"];
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var context;
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var contextCache = {};
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var defaultQuotes = {'"' : '"', "'" : "'"};
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var initContext = function(editor) {
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var id = -1;
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if (editor.multiSelect) {
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id = editor.selection.index;
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if (contextCache.rangeCount != editor.multiSelect.rangeCount)
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contextCache = {rangeCount: editor.multiSelect.rangeCount};
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}
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if (contextCache[id])
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return context = contextCache[id];
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context = contextCache[id] = {
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autoInsertedBrackets: 0,
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autoInsertedRow: -1,
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autoInsertedLineEnd: "",
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maybeInsertedBrackets: 0,
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maybeInsertedRow: -1,
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maybeInsertedLineStart: "",
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maybeInsertedLineEnd: ""
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};
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};
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var getWrapped = function(selection, selected, opening, closing) {
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var rowDiff = selection.end.row - selection.start.row;
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return {
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text: opening + selected + closing,
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selection: [
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0,
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selection.start.column + 1,
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rowDiff,
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selection.end.column + (rowDiff ? 0 : 1)
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]
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};
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};
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var CstyleBehaviour = function(options) {
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this.add("braces", "insertion", function(state, action, editor, session, text) {
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var cursor = editor.getCursorPosition();
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var line = session.doc.getLine(cursor.row);
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if (text == '{') {
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initContext(editor);
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var selection = editor.getSelectionRange();
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var selected = session.doc.getTextRange(selection);
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if (selected !== "" && selected !== "{" && editor.getWrapBehavioursEnabled()) {
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return getWrapped(selection, selected, '{', '}');
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} else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
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if (/[\]\}\)]/.test(line[cursor.column]) || editor.inMultiSelectMode || options && options.braces) {
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CstyleBehaviour.recordAutoInsert(editor, session, "}");
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return {
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text: '{}',
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selection: [1, 1]
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};
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} else {
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CstyleBehaviour.recordMaybeInsert(editor, session, "{");
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return {
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text: '{',
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selection: [1, 1]
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};
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}
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}
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} else if (text == '}') {
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initContext(editor);
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var rightChar = line.substring(cursor.column, cursor.column + 1);
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if (rightChar == '}') {
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var matching = session.$findOpeningBracket('}', {column: cursor.column + 1, row: cursor.row});
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if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
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CstyleBehaviour.popAutoInsertedClosing();
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return {
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text: '',
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selection: [1, 1]
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};
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}
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}
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} else if (text == "\n" || text == "\r\n") {
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initContext(editor);
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var closing = "";
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if (CstyleBehaviour.isMaybeInsertedClosing(cursor, line)) {
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closing = lang.stringRepeat("}", context.maybeInsertedBrackets);
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CstyleBehaviour.clearMaybeInsertedClosing();
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}
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var rightChar = line.substring(cursor.column, cursor.column + 1);
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if (rightChar === '}') {
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var openBracePos = session.findMatchingBracket({row: cursor.row, column: cursor.column+1}, '}');
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if (!openBracePos)
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return null;
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var next_indent = this.$getIndent(session.getLine(openBracePos.row));
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} else if (closing) {
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var next_indent = this.$getIndent(line);
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} else {
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CstyleBehaviour.clearMaybeInsertedClosing();
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return;
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}
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var indent = next_indent + session.getTabString();
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return {
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text: '\n' + indent + '\n' + next_indent + closing,
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selection: [1, indent.length, 1, indent.length]
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};
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} else {
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CstyleBehaviour.clearMaybeInsertedClosing();
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}
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});
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this.add("braces", "deletion", function(state, action, editor, session, range) {
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var selected = session.doc.getTextRange(range);
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if (!range.isMultiLine() && selected == '{') {
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initContext(editor);
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var line = session.doc.getLine(range.start.row);
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var rightChar = line.substring(range.end.column, range.end.column + 1);
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if (rightChar == '}') {
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range.end.column++;
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return range;
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} else {
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context.maybeInsertedBrackets--;
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}
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}
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});
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this.add("parens", "insertion", function(state, action, editor, session, text) {
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if (text == '(') {
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initContext(editor);
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var selection = editor.getSelectionRange();
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var selected = session.doc.getTextRange(selection);
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if (selected !== "" && editor.getWrapBehavioursEnabled()) {
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return getWrapped(selection, selected, '(', ')');
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} else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
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CstyleBehaviour.recordAutoInsert(editor, session, ")");
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return {
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text: '()',
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selection: [1, 1]
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};
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}
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} else if (text == ')') {
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initContext(editor);
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var cursor = editor.getCursorPosition();
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var line = session.doc.getLine(cursor.row);
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var rightChar = line.substring(cursor.column, cursor.column + 1);
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if (rightChar == ')') {
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var matching = session.$findOpeningBracket(')', {column: cursor.column + 1, row: cursor.row});
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if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
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CstyleBehaviour.popAutoInsertedClosing();
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return {
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text: '',
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selection: [1, 1]
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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.add("parens", "deletion", function(state, action, editor, session, range) {
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var selected = session.doc.getTextRange(range);
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if (!range.isMultiLine() && selected == '(') {
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initContext(editor);
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var line = session.doc.getLine(range.start.row);
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var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
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if (rightChar == ')') {
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range.end.column++;
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return range;
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}
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}
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});
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this.add("brackets", "insertion", function(state, action, editor, session, text) {
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if (text == '[') {
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initContext(editor);
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var selection = editor.getSelectionRange();
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var selected = session.doc.getTextRange(selection);
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if (selected !== "" && editor.getWrapBehavioursEnabled()) {
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return getWrapped(selection, selected, '[', ']');
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} else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
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CstyleBehaviour.recordAutoInsert(editor, session, "]");
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return {
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text: '[]',
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selection: [1, 1]
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};
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}
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} else if (text == ']') {
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initContext(editor);
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var cursor = editor.getCursorPosition();
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var line = session.doc.getLine(cursor.row);
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var rightChar = line.substring(cursor.column, cursor.column + 1);
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if (rightChar == ']') {
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var matching = session.$findOpeningBracket(']', {column: cursor.column + 1, row: cursor.row});
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if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
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CstyleBehaviour.popAutoInsertedClosing();
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return {
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text: '',
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selection: [1, 1]
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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.add("brackets", "deletion", function(state, action, editor, session, range) {
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var selected = session.doc.getTextRange(range);
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if (!range.isMultiLine() && selected == '[') {
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initContext(editor);
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var line = session.doc.getLine(range.start.row);
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var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
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if (rightChar == ']') {
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range.end.column++;
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return range;
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}
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}
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});
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this.add("string_dquotes", "insertion", function(state, action, editor, session, text) {
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var quotes = session.$mode.$quotes || defaultQuotes;
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if (text.length == 1 && quotes[text]) {
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if (this.lineCommentStart && this.lineCommentStart.indexOf(text) != -1)
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return;
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initContext(editor);
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var quote = text;
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var selection = editor.getSelectionRange();
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var selected = session.doc.getTextRange(selection);
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if (selected !== "" && (selected.length != 1 || !quotes[selected]) && editor.getWrapBehavioursEnabled()) {
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return getWrapped(selection, selected, quote, quote);
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} else if (!selected) {
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var cursor = editor.getCursorPosition();
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var line = session.doc.getLine(cursor.row);
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var leftChar = line.substring(cursor.column-1, cursor.column);
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var rightChar = line.substring(cursor.column, cursor.column + 1);
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var token = session.getTokenAt(cursor.row, cursor.column);
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var rightToken = session.getTokenAt(cursor.row, cursor.column + 1);
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// We're escaped.
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if (leftChar == "\\" && token && /escape/.test(token.type))
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return null;
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var stringBefore = token && /string|escape/.test(token.type);
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var stringAfter = !rightToken || /string|escape/.test(rightToken.type);
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var pair;
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if (rightChar == quote) {
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pair = stringBefore !== stringAfter;
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if (pair && /string\.end/.test(rightToken.type))
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pair = false;
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} else {
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if (stringBefore && !stringAfter)
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return null; // wrap string with different quote
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if (stringBefore && stringAfter)
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return null; // do not pair quotes inside strings
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var wordRe = session.$mode.tokenRe;
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wordRe.lastIndex = 0;
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var isWordBefore = wordRe.test(leftChar);
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wordRe.lastIndex = 0;
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var isWordAfter = wordRe.test(leftChar);
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if (isWordBefore || isWordAfter)
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return null; // before or after alphanumeric
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if (rightChar && !/[\s;,.})\]\\]/.test(rightChar))
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return null; // there is rightChar and it isn't closing
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pair = true;
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}
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return {
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text: pair ? quote + quote : "",
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selection: [1,1]
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};
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}
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}
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});
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this.add("string_dquotes", "deletion", function(state, action, editor, session, range) {
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var quotes = session.$mode.$quotes || defaultQuotes;
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var selected = session.doc.getTextRange(range);
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if (!range.isMultiLine() && quotes.hasOwnProperty(selected)) {
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initContext(editor);
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var line = session.doc.getLine(range.start.row);
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var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
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if (rightChar == selected) {
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range.end.column++;
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return range;
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}
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}
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});
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};
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CstyleBehaviour.isSaneInsertion = function(editor, session) {
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var cursor = editor.getCursorPosition();
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var iterator = new TokenIterator(session, cursor.row, cursor.column);
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// Don't insert in the middle of a keyword/identifier/lexical
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if (!this.$matchTokenType(iterator.getCurrentToken() || "text", SAFE_INSERT_IN_TOKENS)) {
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// Look ahead in case we're at the end of a token
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var iterator2 = new TokenIterator(session, cursor.row, cursor.column + 1);
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if (!this.$matchTokenType(iterator2.getCurrentToken() || "text", SAFE_INSERT_IN_TOKENS))
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return false;
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}
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// Only insert in front of whitespace/comments
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iterator.stepForward();
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return iterator.getCurrentTokenRow() !== cursor.row ||
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this.$matchTokenType(iterator.getCurrentToken() || "text", SAFE_INSERT_BEFORE_TOKENS);
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};
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CstyleBehaviour.$matchTokenType = function(token, types) {
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return types.indexOf(token.type || token) > -1;
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};
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CstyleBehaviour.recordAutoInsert = function(editor, session, bracket) {
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var cursor = editor.getCursorPosition();
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var line = session.doc.getLine(cursor.row);
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// Reset previous state if text or context changed too much
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if (!this.isAutoInsertedClosing(cursor, line, context.autoInsertedLineEnd[0]))
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context.autoInsertedBrackets = 0;
|
||
|
|
context.autoInsertedRow = cursor.row;
|
||
|
|
context.autoInsertedLineEnd = bracket + line.substr(cursor.column);
|
||
|
|
context.autoInsertedBrackets++;
|
||
|
|
};
|
||
|
|
|
||
|
|
CstyleBehaviour.recordMaybeInsert = function(editor, session, bracket) {
|
||
|
|
var cursor = editor.getCursorPosition();
|
||
|
|
var line = session.doc.getLine(cursor.row);
|
||
|
|
if (!this.isMaybeInsertedClosing(cursor, line))
|
||
|
|
context.maybeInsertedBrackets = 0;
|
||
|
|
context.maybeInsertedRow = cursor.row;
|
||
|
|
context.maybeInsertedLineStart = line.substr(0, cursor.column) + bracket;
|
||
|
|
context.maybeInsertedLineEnd = line.substr(cursor.column);
|
||
|
|
context.maybeInsertedBrackets++;
|
||
|
|
};
|
||
|
|
|
||
|
|
CstyleBehaviour.isAutoInsertedClosing = function(cursor, line, bracket) {
|
||
|
|
return context.autoInsertedBrackets > 0 &&
|
||
|
|
cursor.row === context.autoInsertedRow &&
|
||
|
|
bracket === context.autoInsertedLineEnd[0] &&
|
||
|
|
line.substr(cursor.column) === context.autoInsertedLineEnd;
|
||
|
|
};
|
||
|
|
|
||
|
|
CstyleBehaviour.isMaybeInsertedClosing = function(cursor, line) {
|
||
|
|
return context.maybeInsertedBrackets > 0 &&
|
||
|
|
cursor.row === context.maybeInsertedRow &&
|
||
|
|
line.substr(cursor.column) === context.maybeInsertedLineEnd &&
|
||
|
|
line.substr(0, cursor.column) == context.maybeInsertedLineStart;
|
||
|
|
};
|
||
|
|
|
||
|
|
CstyleBehaviour.popAutoInsertedClosing = function() {
|
||
|
|
context.autoInsertedLineEnd = context.autoInsertedLineEnd.substr(1);
|
||
|
|
context.autoInsertedBrackets--;
|
||
|
|
};
|
||
|
|
|
||
|
|
CstyleBehaviour.clearMaybeInsertedClosing = function() {
|
||
|
|
if (context) {
|
||
|
|
context.maybeInsertedBrackets = 0;
|
||
|
|
context.maybeInsertedRow = -1;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
oop.inherits(CstyleBehaviour, Behaviour);
|
||
|
|
|
||
|
|
exports.CstyleBehaviour = CstyleBehaviour;
|
||
|
|
});
|