mirror of
https://github.com/overleaf/overleaf.git
synced 2024-11-07 20:31:06 -05:00
366 lines
15 KiB
JavaScript
366 lines
15 KiB
JavaScript
|
/* ***** 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 autoInsertedBrackets = 0;
|
||
|
|
var autoInsertedRow = -1;
|
||
|
|
var autoInsertedLineEnd = "";
|
||
|
|
var maybeInsertedBrackets = 0;
|
||
|
|
var maybeInsertedRow = -1;
|
||
|
|
var maybeInsertedLineStart = "";
|
||
|
|
var maybeInsertedLineEnd = "";
|
||
|
|
|
||
|
|
var CstyleBehaviour = function () {
|
||
|
|
|
||
|
|
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, autoInsertedLineEnd[0]))
|
||
|
|
autoInsertedBrackets = 0;
|
||
|
|
autoInsertedRow = cursor.row;
|
||
|
|
autoInsertedLineEnd = bracket + line.substr(cursor.column);
|
||
|
|
autoInsertedBrackets++;
|
||
|
|
};
|
||
|
|
|
||
|
|
CstyleBehaviour.recordMaybeInsert = function(editor, session, bracket) {
|
||
|
|
var cursor = editor.getCursorPosition();
|
||
|
|
var line = session.doc.getLine(cursor.row);
|
||
|
|
if (!this.isMaybeInsertedClosing(cursor, line))
|
||
|
|
maybeInsertedBrackets = 0;
|
||
|
|
maybeInsertedRow = cursor.row;
|
||
|
|
maybeInsertedLineStart = line.substr(0, cursor.column) + bracket;
|
||
|
|
maybeInsertedLineEnd = line.substr(cursor.column);
|
||
|
|
maybeInsertedBrackets++;
|
||
|
|
};
|
||
|
|
|
||
|
|
CstyleBehaviour.isAutoInsertedClosing = function(cursor, line, bracket) {
|
||
|
|
return autoInsertedBrackets > 0 &&
|
||
|
|
cursor.row === autoInsertedRow &&
|
||
|
|
bracket === autoInsertedLineEnd[0] &&
|
||
|
|
line.substr(cursor.column) === autoInsertedLineEnd;
|
||
|
|
};
|
||
|
|
|
||
|
|
CstyleBehaviour.isMaybeInsertedClosing = function(cursor, line) {
|
||
|
|
return maybeInsertedBrackets > 0 &&
|
||
|
|
cursor.row === maybeInsertedRow &&
|
||
|
|
line.substr(cursor.column) === maybeInsertedLineEnd &&
|
||
|
|
line.substr(0, cursor.column) == maybeInsertedLineStart;
|
||
|
|
};
|
||
|
|
|
||
|
|
CstyleBehaviour.popAutoInsertedClosing = function() {
|
||
|
|
autoInsertedLineEnd = autoInsertedLineEnd.substr(1);
|
||
|
|
autoInsertedBrackets--;
|
||
|
|
};
|
||
|
|
|
||
|
|
CstyleBehaviour.clearMaybeInsertedClosing = function() {
|
||
|
|
maybeInsertedBrackets = 0;
|
||
|
|
maybeInsertedRow = -1;
|
||
|
|
};
|
||
|
|
|
||
|
|
this.add("braces", "insertion", function (state, action, editor, session, text) {
|
||
|
|
var cursor = editor.getCursorPosition();
|
||
|
|
var line = session.doc.getLine(cursor.row);
|
||
|
|
if (text == '{') {
|
||
|
|
var selection = editor.getSelectionRange();
|
||
|
|
var selected = session.doc.getTextRange(selection);
|
||
|
|
if (selected !== "" && selected !== "{" && editor.getWrapBehavioursEnabled()) {
|
||
|
|
return {
|
||
|
|
text: '{' + selected + '}',
|
||
|
|
selection: false
|
||
|
|
};
|
||
|
|
} else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
|
||
|
|
if (/[\]\}\)]/.test(line[cursor.column])) {
|
||
|
|
CstyleBehaviour.recordAutoInsert(editor, session, "}");
|
||
|
|
return {
|
||
|
|
text: '{}',
|
||
|
|
selection: [1, 1]
|
||
|
|
};
|
||
|
|
} else {
|
||
|
|
CstyleBehaviour.recordMaybeInsert(editor, session, "{");
|
||
|
|
return {
|
||
|
|
text: '{',
|
||
|
|
selection: [1, 1]
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else if (text == '}') {
|
||
|
|
var rightChar = line.substring(cursor.column, cursor.column + 1);
|
||
|
|
if (rightChar == '}') {
|
||
|
|
var matching = session.$findOpeningBracket('}', {column: cursor.column + 1, row: cursor.row});
|
||
|
|
if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
|
||
|
|
CstyleBehaviour.popAutoInsertedClosing();
|
||
|
|
return {
|
||
|
|
text: '',
|
||
|
|
selection: [1, 1]
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else if (text == "\n" || text == "\r\n") {
|
||
|
|
var closing = "";
|
||
|
|
if (CstyleBehaviour.isMaybeInsertedClosing(cursor, line)) {
|
||
|
|
closing = lang.stringRepeat("}", maybeInsertedBrackets);
|
||
|
|
CstyleBehaviour.clearMaybeInsertedClosing();
|
||
|
|
}
|
||
|
|
var rightChar = line.substring(cursor.column, cursor.column + 1);
|
||
|
|
if (rightChar == '}' || closing !== "") {
|
||
|
|
var openBracePos = session.findMatchingBracket({row: cursor.row, column: cursor.column+1}, '}');
|
||
|
|
if (!openBracePos)
|
||
|
|
return null;
|
||
|
|
|
||
|
|
var indent = this.getNextLineIndent(state, line.substring(0, cursor.column), session.getTabString());
|
||
|
|
var next_indent = this.$getIndent(line);
|
||
|
|
|
||
|
|
return {
|
||
|
|
text: '\n' + indent + '\n' + next_indent + closing,
|
||
|
|
selection: [1, indent.length, 1, indent.length]
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
this.add("braces", "deletion", function (state, action, editor, session, range) {
|
||
|
|
var selected = session.doc.getTextRange(range);
|
||
|
|
if (!range.isMultiLine() && selected == '{') {
|
||
|
|
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 {
|
||
|
|
maybeInsertedBrackets--;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
this.add("parens", "insertion", function (state, action, editor, session, text) {
|
||
|
|
if (text == '(') {
|
||
|
|
var selection = editor.getSelectionRange();
|
||
|
|
var selected = session.doc.getTextRange(selection);
|
||
|
|
if (selected !== "" && editor.getWrapBehavioursEnabled()) {
|
||
|
|
return {
|
||
|
|
text: '(' + selected + ')',
|
||
|
|
selection: false
|
||
|
|
};
|
||
|
|
} else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
|
||
|
|
CstyleBehaviour.recordAutoInsert(editor, session, ")");
|
||
|
|
return {
|
||
|
|
text: '()',
|
||
|
|
selection: [1, 1]
|
||
|
|
};
|
||
|
|
}
|
||
|
|
} else if (text == ')') {
|
||
|
|
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.$findOpeningBracket(')', {column: cursor.column + 1, row: cursor.row});
|
||
|
|
if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
|
||
|
|
CstyleBehaviour.popAutoInsertedClosing();
|
||
|
|
return {
|
||
|
|
text: '',
|
||
|
|
selection: [1, 1]
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
this.add("parens", "deletion", function (state, action, editor, session, range) {
|
||
|
|
var selected = session.doc.getTextRange(range);
|
||
|
|
if (!range.isMultiLine() && selected == '(') {
|
||
|
|
var line = session.doc.getLine(range.start.row);
|
||
|
|
var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
|
||
|
|
if (rightChar == ')') {
|
||
|
|
range.end.column++;
|
||
|
|
return range;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
this.add("brackets", "insertion", function (state, action, editor, session, text) {
|
||
|
|
if (text == '[') {
|
||
|
|
var selection = editor.getSelectionRange();
|
||
|
|
var selected = session.doc.getTextRange(selection);
|
||
|
|
if (selected !== "" && editor.getWrapBehavioursEnabled()) {
|
||
|
|
return {
|
||
|
|
text: '[' + selected + ']',
|
||
|
|
selection: false
|
||
|
|
};
|
||
|
|
} else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
|
||
|
|
CstyleBehaviour.recordAutoInsert(editor, session, "]");
|
||
|
|
return {
|
||
|
|
text: '[]',
|
||
|
|
selection: [1, 1]
|
||
|
|
};
|
||
|
|
}
|
||
|
|
} else if (text == ']') {
|
||
|
|
var cursor = editor.getCursorPosition();
|
||
|
|
var line = session.doc.getLine(cursor.row);
|
||
|
|
var rightChar = line.substring(cursor.column, cursor.column + 1);
|
||
|
|
if (rightChar == ']') {
|
||
|
|
var matching = session.$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 == '[') {
|
||
|
|
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) {
|
||
|
|
if (text == '"' || text == "'") {
|
||
|
|
var quote = text;
|
||
|
|
var selection = editor.getSelectionRange();
|
||
|
|
var selected = session.doc.getTextRange(selection);
|
||
|
|
if (selected !== "" && selected !== "'" && selected != '"' && editor.getWrapBehavioursEnabled()) {
|
||
|
|
return {
|
||
|
|
text: quote + selected + quote,
|
||
|
|
selection: false
|
||
|
|
};
|
||
|
|
} else {
|
||
|
|
var cursor = editor.getCursorPosition();
|
||
|
|
var line = session.doc.getLine(cursor.row);
|
||
|
|
var leftChar = line.substring(cursor.column-1, cursor.column);
|
||
|
|
|
||
|
|
// We're escaped.
|
||
|
|
if (leftChar == '\\') {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Find what token we're inside.
|
||
|
|
var tokens = session.getTokens(selection.start.row);
|
||
|
|
var col = 0, token;
|
||
|
|
var quotepos = -1; // Track whether we're inside an open quote.
|
||
|
|
|
||
|
|
for (var x = 0; x < tokens.length; x++) {
|
||
|
|
token = tokens[x];
|
||
|
|
if (token.type == "string") {
|
||
|
|
quotepos = -1;
|
||
|
|
} else if (quotepos < 0) {
|
||
|
|
quotepos = token.value.indexOf(quote);
|
||
|
|
}
|
||
|
|
if ((token.value.length + col) > selection.start.column) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
col += tokens[x].value.length;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Try and be smart about when we auto insert.
|
||
|
|
if (!token || (quotepos < 0 && token.type !== "comment" && (token.type !== "string" || ((selection.start.column !== token.value.length+col-1) && token.value.lastIndexOf(quote) === token.value.length-1)))) {
|
||
|
|
if (!CstyleBehaviour.isSaneInsertion(editor, session))
|
||
|
|
return;
|
||
|
|
return {
|
||
|
|
text: quote + quote,
|
||
|
|
selection: [1,1]
|
||
|
|
};
|
||
|
|
} else if (token && token.type === "string") {
|
||
|
|
// Ignore input and move right one if we're typing over the closing quote.
|
||
|
|
var rightChar = line.substring(cursor.column, cursor.column + 1);
|
||
|
|
if (rightChar == quote) {
|
||
|
|
return {
|
||
|
|
text: '',
|
||
|
|
selection: [1, 1]
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
this.add("string_dquotes", "deletion", function (state, action, editor, session, range) {
|
||
|
|
var selected = session.doc.getTextRange(range);
|
||
|
|
if (!range.isMultiLine() && (selected == '"' || selected == "'")) {
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
oop.inherits(CstyleBehaviour, Behaviour);
|
||
|
|
|
||
|
|
exports.CstyleBehaviour = CstyleBehaviour;
|
||
|
|
});
|