big-moving.ru/api/soft/Ace/lib/ace/mode/behaviour/cstyle.js

403 lines
17 KiB
JavaScript
Executable File

/* ***** BEGIN LICENSE BLOCK *****
* Distributed under the BSD license:
*
* Copyright (c) 2010, Ajax.org B.V.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Ajax.org B.V. nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ***** END LICENSE BLOCK ***** */
define(function(require, exports, module) {
"use strict";
var oop = require("../../lib/oop");
var Behaviour = require("../behaviour").Behaviour;
var TokenIterator = require("../../token_iterator").TokenIterator;
var lang = require("../../lib/lang");
var SAFE_INSERT_IN_TOKENS =
["text", "paren.rparen", "punctuation.operator"];
var SAFE_INSERT_BEFORE_TOKENS =
["text", "paren.rparen", "punctuation.operator", "comment"];
var context;
var contextCache = {};
var defaultQuotes = {'"' : '"', "'" : "'"};
var initContext = function(editor) {
var id = -1;
if (editor.multiSelect) {
id = editor.selection.index;
if (contextCache.rangeCount != editor.multiSelect.rangeCount)
contextCache = {rangeCount: editor.multiSelect.rangeCount};
}
if (contextCache[id])
return context = contextCache[id];
context = contextCache[id] = {
autoInsertedBrackets: 0,
autoInsertedRow: -1,
autoInsertedLineEnd: "",
maybeInsertedBrackets: 0,
maybeInsertedRow: -1,
maybeInsertedLineStart: "",
maybeInsertedLineEnd: ""
};
};
var getWrapped = function(selection, selected, opening, closing) {
var rowDiff = selection.end.row - selection.start.row;
return {
text: opening + selected + closing,
selection: [
0,
selection.start.column + 1,
rowDiff,
selection.end.column + (rowDiff ? 0 : 1)
]
};
};
var CstyleBehaviour = function(options) {
this.add("braces", "insertion", function(state, action, editor, session, text) {
var cursor = editor.getCursorPosition();
var line = session.doc.getLine(cursor.row);
if (text == '{') {
initContext(editor);
var selection = editor.getSelectionRange();
var selected = session.doc.getTextRange(selection);
if (selected !== "" && selected !== "{" && editor.getWrapBehavioursEnabled()) {
return getWrapped(selection, selected, '{', '}');
} else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
if (/[\]\}\)]/.test(line[cursor.column]) || editor.inMultiSelectMode || options && options.braces) {
CstyleBehaviour.recordAutoInsert(editor, session, "}");
return {
text: '{}',
selection: [1, 1]
};
} else {
CstyleBehaviour.recordMaybeInsert(editor, session, "{");
return {
text: '{',
selection: [1, 1]
};
}
}
} else if (text == '}') {
initContext(editor);
var rightChar = line.substring(cursor.column, cursor.column + 1);
if (rightChar == '}') {
var matching = session.$findOpeningBracket('}', {column: cursor.column + 1, row: cursor.row});
if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
CstyleBehaviour.popAutoInsertedClosing();
return {
text: '',
selection: [1, 1]
};
}
}
} else if (text == "\n" || text == "\r\n") {
initContext(editor);
var closing = "";
if (CstyleBehaviour.isMaybeInsertedClosing(cursor, line)) {
closing = lang.stringRepeat("}", context.maybeInsertedBrackets);
CstyleBehaviour.clearMaybeInsertedClosing();
}
var rightChar = line.substring(cursor.column, cursor.column + 1);
if (rightChar === '}') {
var openBracePos = session.findMatchingBracket({row: cursor.row, column: cursor.column+1}, '}');
if (!openBracePos)
return null;
var next_indent = this.$getIndent(session.getLine(openBracePos.row));
} else if (closing) {
var next_indent = this.$getIndent(line);
} else {
CstyleBehaviour.clearMaybeInsertedClosing();
return;
}
var indent = next_indent + session.getTabString();
return {
text: '\n' + indent + '\n' + next_indent + closing,
selection: [1, indent.length, 1, indent.length]
};
} else {
CstyleBehaviour.clearMaybeInsertedClosing();
}
});
this.add("braces", "deletion", function(state, action, editor, session, range) {
var selected = session.doc.getTextRange(range);
if (!range.isMultiLine() && selected == '{') {
initContext(editor);
var line = session.doc.getLine(range.start.row);
var rightChar = line.substring(range.end.column, range.end.column + 1);
if (rightChar == '}') {
range.end.column++;
return range;
} else {
context.maybeInsertedBrackets--;
}
}
});
this.add("parens", "insertion", function(state, action, editor, session, text) {
if (text == '(') {
initContext(editor);
var selection = editor.getSelectionRange();
var selected = session.doc.getTextRange(selection);
if (selected !== "" && editor.getWrapBehavioursEnabled()) {
return getWrapped(selection, selected, '(', ')');
} else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
CstyleBehaviour.recordAutoInsert(editor, session, ")");
return {
text: '()',
selection: [1, 1]
};
}
} else if (text == ')') {
initContext(editor);
var cursor = editor.getCursorPosition();
var line = session.doc.getLine(cursor.row);
var rightChar = line.substring(cursor.column, cursor.column + 1);
if (rightChar == ')') {
var matching = session.$findOpeningBracket(')', {column: cursor.column + 1, row: cursor.row});
if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
CstyleBehaviour.popAutoInsertedClosing();
return {
text: '',
selection: [1, 1]
};
}
}
}
});
this.add("parens", "deletion", function(state, action, editor, session, range) {
var selected = session.doc.getTextRange(range);
if (!range.isMultiLine() && selected == '(') {
initContext(editor);
var line = session.doc.getLine(range.start.row);
var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
if (rightChar == ')') {
range.end.column++;
return range;
}
}
});
this.add("brackets", "insertion", function(state, action, editor, session, text) {
if (text == '[') {
initContext(editor);
var selection = editor.getSelectionRange();
var selected = session.doc.getTextRange(selection);
if (selected !== "" && editor.getWrapBehavioursEnabled()) {
return getWrapped(selection, selected, '[', ']');
} else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
CstyleBehaviour.recordAutoInsert(editor, session, "]");
return {
text: '[]',
selection: [1, 1]
};
}
} else if (text == ']') {
initContext(editor);
var cursor = editor.getCursorPosition();
var line = session.doc.getLine(cursor.row);
var rightChar = line.substring(cursor.column, cursor.column + 1);
if (rightChar == ']') {
var matching = session.$findOpeningBracket(']', {column: cursor.column + 1, row: cursor.row});
if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
CstyleBehaviour.popAutoInsertedClosing();
return {
text: '',
selection: [1, 1]
};
}
}
}
});
this.add("brackets", "deletion", function(state, action, editor, session, range) {
var selected = session.doc.getTextRange(range);
if (!range.isMultiLine() && selected == '[') {
initContext(editor);
var line = session.doc.getLine(range.start.row);
var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
if (rightChar == ']') {
range.end.column++;
return range;
}
}
});
this.add("string_dquotes", "insertion", function(state, action, editor, session, text) {
var quotes = session.$mode.$quotes || defaultQuotes;
if (text.length == 1 && quotes[text]) {
if (this.lineCommentStart && this.lineCommentStart.indexOf(text) != -1)
return;
initContext(editor);
var quote = text;
var selection = editor.getSelectionRange();
var selected = session.doc.getTextRange(selection);
if (selected !== "" && (selected.length != 1 || !quotes[selected]) && editor.getWrapBehavioursEnabled()) {
return getWrapped(selection, selected, quote, quote);
} else if (!selected) {
var cursor = editor.getCursorPosition();
var line = session.doc.getLine(cursor.row);
var leftChar = line.substring(cursor.column-1, cursor.column);
var rightChar = line.substring(cursor.column, cursor.column + 1);
var token = session.getTokenAt(cursor.row, cursor.column);
var rightToken = session.getTokenAt(cursor.row, cursor.column + 1);
// We're escaped.
if (leftChar == "\\" && token && /escape/.test(token.type))
return null;
var stringBefore = token && /string|escape/.test(token.type);
var stringAfter = !rightToken || /string|escape/.test(rightToken.type);
var pair;
if (rightChar == quote) {
pair = stringBefore !== stringAfter;
if (pair && /string\.end/.test(rightToken.type))
pair = false;
} else {
if (stringBefore && !stringAfter)
return null; // wrap string with different quote
if (stringBefore && stringAfter)
return null; // do not pair quotes inside strings
var wordRe = session.$mode.tokenRe;
wordRe.lastIndex = 0;
var isWordBefore = wordRe.test(leftChar);
wordRe.lastIndex = 0;
var isWordAfter = wordRe.test(leftChar);
if (isWordBefore || isWordAfter)
return null; // before or after alphanumeric
if (rightChar && !/[\s;,.})\]\\]/.test(rightChar))
return null; // there is rightChar and it isn't closing
pair = true;
}
return {
text: pair ? quote + quote : "",
selection: [1,1]
};
}
}
});
this.add("string_dquotes", "deletion", function(state, action, editor, session, range) {
var quotes = session.$mode.$quotes || defaultQuotes;
var selected = session.doc.getTextRange(range);
if (!range.isMultiLine() && quotes.hasOwnProperty(selected)) {
initContext(editor);
var line = session.doc.getLine(range.start.row);
var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
if (rightChar == selected) {
range.end.column++;
return range;
}
}
});
};
CstyleBehaviour.isSaneInsertion = function(editor, session) {
var cursor = editor.getCursorPosition();
var iterator = new TokenIterator(session, cursor.row, cursor.column);
// Don't insert in the middle of a keyword/identifier/lexical
if (!this.$matchTokenType(iterator.getCurrentToken() || "text", SAFE_INSERT_IN_TOKENS)) {
// Look ahead in case we're at the end of a token
var iterator2 = new TokenIterator(session, cursor.row, cursor.column + 1);
if (!this.$matchTokenType(iterator2.getCurrentToken() || "text", SAFE_INSERT_IN_TOKENS))
return false;
}
// Only insert in front of whitespace/comments
iterator.stepForward();
return iterator.getCurrentTokenRow() !== cursor.row ||
this.$matchTokenType(iterator.getCurrentToken() || "text", SAFE_INSERT_BEFORE_TOKENS);
};
CstyleBehaviour.$matchTokenType = function(token, types) {
return types.indexOf(token.type || token) > -1;
};
CstyleBehaviour.recordAutoInsert = function(editor, session, bracket) {
var cursor = editor.getCursorPosition();
var line = session.doc.getLine(cursor.row);
// Reset previous state if text or context changed too much
if (!this.isAutoInsertedClosing(cursor, line, context.autoInsertedLineEnd[0]))
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;
});