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Merge pull request #1055 from ajaxorg/selective-bracket-insertion

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Selective bracket insertion/skipping
This commit is contained in:
Harutyun Amirjanyan 2012-10-22 05:25:33 -07:00
commit f38a4e0e5b
1 changed files with 63 additions and 7 deletions
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70
lib/ace/mode/behaviour/cstyle.js
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@ -33,19 +33,70 @@ define(function(require, exports, module) {
var oop = require("../../lib/oop");
var Behaviour = require("../behaviour").Behaviour;
var TokenIterator = require("../../token_iterator").TokenIterator;
var autoInsertedBrackets = 0;
var autoInsertedRow = -1;
var autoInsertedLineEnd = "";
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.$matchTokenType(iterator.getCurrentToken() || "text", ["text", "paren.rparen"])) {
// Look ahead in case we're at the end of a token
iterator = new TokenIterator(session, cursor.row, cursor.column + 1);
if (!this.$matchTokenType(iterator.getCurrentToken() || "text", ["text", "paren.rparen"]))
return false;
}
// Only insert in front of whitespace/comments
iterator.stepForward();
return iterator.getCurrentTokenRow() !== cursor.row ||
this.$matchTokenType(iterator.getCurrentToken() || "text", ["text", "comment", "paren.rparen"]);
};
CstyleBehaviour.$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.isAutoInsertedClosing = function(cursor, line, bracket) {
return autoInsertedBrackets > 0 &&
cursor.row === autoInsertedRow &&
bracket === autoInsertedLineEnd[0] &&
line.substr(cursor.column) === autoInsertedLineEnd;
};
CstyleBehaviour.popAutoInsertedClosing = function() {
autoInsertedLineEnd = autoInsertedLineEnd.substr(1);
autoInsertedBrackets--;
};
this.add("braces", "insertion", function (state, action, editor, session, text) {
if (text == '{') {
var selection = editor.getSelectionRange();
var selected = session.doc.getTextRange(selection);
if (selected !== "") {
if (selected !== "" && selected !== "{") {
return {
text: '{' + selected + '}',
selection: false
};
} else {
} else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
CstyleBehaviour.recordAutoInsert(editor, session, "}");
return {
text: '{}',
selection: [1, 1]
@ -57,7 +108,8 @@ var CstyleBehaviour = function () {
var rightChar = line.substring(cursor.column, cursor.column + 1);
if (rightChar == '}') {
var matching = session.$findOpeningBracket('}', {column: cursor.column + 1, row: cursor.row});
if (matching !== null) {
if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
CstyleBehaviour.popAutoInsertedClosing();
return {
text: '',
selection: [1, 1]
@ -105,7 +157,8 @@ var CstyleBehaviour = function () {
text: '(' + selected + ')',
selection: false
};
} else {
} else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
CstyleBehaviour.recordAutoInsert(editor, session, ")");
return {
text: '()',
selection: [1, 1]
@ -117,7 +170,8 @@ var CstyleBehaviour = function () {
var rightChar = line.substring(cursor.column, cursor.column + 1);
if (rightChar == ')') {
var matching = session.$findOpeningBracket(')', {column: cursor.column + 1, row: cursor.row});
if (matching !== null) {
if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
CstyleBehaviour.popAutoInsertedClosing();
return {
text: '',
selection: [1, 1]
@ -148,7 +202,8 @@ var CstyleBehaviour = function () {
text: '[' + selected + ']',
selection: false
};
} else {
} else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
CstyleBehaviour.recordAutoInsert(editor, session, "]");
return {
text: '[]',
selection: [1, 1]
@ -160,7 +215,8 @@ var CstyleBehaviour = function () {
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) {
if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
CstyleBehaviour.popAutoInsertedClosing();
return {
text: '',
selection: [1, 1]