mediawiki-extensions-CodeEditor/modules/ace/ext-beautify.js

ace.define("ace/ext/beautify",["require","exports","module","ace/token_iterator"], function(require, exports, module){// [WIP]
"use strict";
var TokenIterator = require("../token_iterator").TokenIterator;
function is(token, type) {
    return token.type.lastIndexOf(type + ".xml") > -1;
}
exports.singletonTags = ["area", "base", "br", "col", "command", "embed", "hr", "html", "img", "input", "keygen", "link", "meta", "param", "source", "track", "wbr"];
exports.blockTags = ["article", "aside", "blockquote", "body", "div", "dl", "fieldset", "footer", "form", "head", "header", "html", "nav", "ol", "p", "script", "section", "style", "table", "tbody", "tfoot", "thead", "ul"];
exports.formatOptions = {
    lineBreaksAfterCommasInCurlyBlock: true
};
exports.beautify = function (session) {
    var iterator = new TokenIterator(session, 0, 0);
    var token = iterator.getCurrentToken();
    var tabString = session.getTabString();
    var singletonTags = exports.singletonTags;
    var blockTags = exports.blockTags;
    var formatOptions = exports.formatOptions || {};
    var nextToken;
    var breakBefore = false;
    var spaceBefore = false;
    var spaceAfter = false;
    var code = "";
    var value = "";
    var tagName = "";
    var depth = 0;
    var lastDepth = 0;
    var lastIndent = 0;
    var indent = 0;
    var unindent = 0;
    var roundDepth = 0;
    var curlyDepth = 0;
    var row;
    var curRow = 0;
    var rowsToAdd = 0;
    var rowTokens = [];
    var abort = false;
    var i;
    var indentNextLine = false;
    var inTag = false;
    var inCSS = false;
    var inBlock = false;
    var levels = { 0: 0 };
    var parents = [];
    var caseBody = false;
    var trimNext = function () {
        if (nextToken && nextToken.value && nextToken.type !== 'string.regexp')
            nextToken.value = nextToken.value.replace(/^\s*/, "");
    };
    var trimLine = function () {
        var end = code.length - 1;
        while (true) {
            if (end == 0)
                break;
            if (code[end] !== " ")
                break;
            end = end - 1;
        }
        code = code.slice(0, end + 1);
    };
    var trimCode = function () {
        code = code.trimRight();
        breakBefore = false;
    };
    while (token !== null) {
        curRow = iterator.getCurrentTokenRow();
        rowTokens = iterator.$rowTokens;
        nextToken = iterator.stepForward();
        if (typeof token !== "undefined") {
            value = token.value;
            unindent = 0;
            inCSS = (tagName === "style" || session.$modeId === "ace/mode/css");
            if (is(token, "tag-open")) {
                inTag = true;
                if (nextToken)
                    inBlock = (blockTags.indexOf(nextToken.value) !== -1);
                if (value === "</") {
                    if (inBlock && !breakBefore && rowsToAdd < 1)
                        rowsToAdd++;
                    if (inCSS)
                        rowsToAdd = 1;
                    unindent = 1;
                    inBlock = false;
                }
            }
            else if (is(token, "tag-close")) {
                inTag = false;
            }
            else if (is(token, "comment.start")) {
                inBlock = true;
            }
            else if (is(token, "comment.end")) {
                inBlock = false;
            }
            if (!inTag && !rowsToAdd && token.type === "paren.rparen" && token.value.substr(0, 1) === "}") {
                rowsToAdd++;
            }
            if (curRow !== row) {
                rowsToAdd = curRow;
                if (row)
                    rowsToAdd -= row;
            }
            if (rowsToAdd) {
                trimCode();
                for (; rowsToAdd > 0; rowsToAdd--)
                    code += "\n";
                breakBefore = true;
                if (!is(token, "comment") && !token.type.match(/^(comment|string)$/))
                    value = value.trimLeft();
            }
            if (value) {
                if (token.type === "keyword" && value.match(/^(if|else|elseif|for|foreach|while|switch)$/)) {
                    parents[depth] = value;
                    trimNext();
                    spaceAfter = true;
                    if (value.match(/^(else|elseif)$/)) {
                        if (code.match(/\}[\s]*$/)) {
                            trimCode();
                            spaceBefore = true;
                        }
                    }
                }
                else if (token.type === "paren.lparen") {
                    trimNext();
                    if (value.substr(-1) === "{") {
                        spaceAfter = true;
                        indentNextLine = false;
                        if (!inTag)
                            rowsToAdd = 1;
                    }
                    if (value.substr(0, 1) === "{") {
                        spaceBefore = true;
                        if (code.substr(-1) !== '[' && code.trimRight().substr(-1) === '[') {
                            trimCode();
                            spaceBefore = false;
                        }
                        else if (code.trimRight().substr(-1) === ')') {
                            trimCode();
                        }
                        else {
                            trimLine();
                        }
                    }
                }
                else if (token.type === "paren.rparen") {
                    unindent = 1;
                    if (value.substr(0, 1) === "}") {
                        if (parents[depth - 1] === 'case')
                            unindent++;
                        if (code.trimRight().substr(-1) === '{') {
                            trimCode();
                        }
                        else {
                            spaceBefore = true;
                            if (inCSS)
                                rowsToAdd += 2;
                        }
                    }
                    if (value.substr(0, 1) === "]") {
                        if (code.substr(-1) !== '}' && code.trimRight().substr(-1) === '}') {
                            spaceBefore = false;
                            indent++;
                            trimCode();
                        }
                    }
                    if (value.substr(0, 1) === ")") {
                        if (code.substr(-1) !== '(' && code.trimRight().substr(-1) === '(') {
                            spaceBefore = false;
                            indent++;
                            trimCode();
                        }
                    }
                    trimLine();
                }
                else if ((token.type === "keyword.operator" || token.type === "keyword") && value.match(/^(=|==|===|!=|!==|&&|\|\||and|or|xor|\+=|.=|>|>=|<|<=|=>)$/)) {
                    trimCode();
                    trimNext();
                    spaceBefore = true;
                    spaceAfter = true;
                }
                else if (token.type === "punctuation.operator" && value === ';') {
                    trimCode();
                    trimNext();
                    spaceAfter = true;
                    if (inCSS)
                        rowsToAdd++;
                }
                else if (token.type === "punctuation.operator" && value.match(/^(:|,)$/)) {
                    trimCode();
                    trimNext();
                    if (value.match(/^(,)$/) && curlyDepth > 0 && roundDepth === 0 && formatOptions.lineBreaksAfterCommasInCurlyBlock) {
                        rowsToAdd++;
                    }
                    else {
                        spaceAfter = true;
                        breakBefore = false;
                    }
                }
                else if (token.type === "support.php_tag" && value === "?>" && !breakBefore) {
                    trimCode();
                    spaceBefore = true;
                }
                else if (is(token, "attribute-name") && code.substr(-1).match(/^\s$/)) {
                    spaceBefore = true;
                }
                else if (is(token, "attribute-equals")) {
                    trimLine();
                    trimNext();
                }
                else if (is(token, "tag-close")) {
                    trimLine();
                    if (value === "/>")
                        spaceBefore = true;
                }
                else if (token.type === "keyword" && value.match(/^(case|default)$/)) {
                    if (caseBody)
                        unindent = 1;
                }
                if (breakBefore && !(token.type.match(/^(comment)$/) && !value.substr(0, 1).match(/^[/#]$/)) && !(token.type.match(/^(string)$/) && !value.substr(0, 1).match(/^['"@]$/))) {
                    indent = lastIndent;
                    if (depth > lastDepth) {
                        indent++;
                        for (i = depth; i > lastDepth; i--)
                            levels[i] = indent;
                    }
                    else if (depth < lastDepth)
                        indent = levels[depth];
                    lastDepth = depth;
                    lastIndent = indent;
                    if (unindent)
                        indent -= unindent;
                    if (indentNextLine && !roundDepth) {
                        indent++;
                        indentNextLine = false;
                    }
                    for (i = 0; i < indent; i++)
                        code += tabString;
                }
                if (token.type === "keyword" && value.match(/^(case|default)$/)) {
                    if (caseBody === false) {
                        parents[depth] = value;
                        depth++;
                        caseBody = true;
                    }
                }
                else if (token.type === "keyword" && value.match(/^(break)$/)) {
                    if (parents[depth - 1] && parents[depth - 1].match(/^(case|default)$/)) {
                        depth--;
                        caseBody = false;
                    }
                }
                if (token.type === "paren.lparen") {
                    roundDepth += (value.match(/\(/g) || []).length;
                    curlyDepth += (value.match(/\{/g) || []).length;
                    depth += value.length;
                }
                if (token.type === "keyword" && value.match(/^(if|else|elseif|for|while)$/)) {
                    indentNextLine = true;
                    roundDepth = 0;
                }
                else if (!roundDepth && value.trim() && token.type !== "comment")
                    indentNextLine = false;
                if (token.type === "paren.rparen") {
                    roundDepth -= (value.match(/\)/g) || []).length;
                    curlyDepth -= (value.match(/\}/g) || []).length;
                    for (i = 0; i < value.length; i++) {
                        depth--;
                        if (value.substr(i, 1) === '}' && parents[depth] === 'case') {
                            depth--;
                        }
                    }
                }
                if (token.type == "text")
                    value = value.replace(/\s+$/, " ");
                if (spaceBefore && !breakBefore) {
                    trimLine();
                    if (code.substr(-1) !== "\n")
                        code += " ";
                }
                code += value;
                if (spaceAfter)
                    code += " ";
                breakBefore = false;
                spaceBefore = false;
                spaceAfter = false;
                if ((is(token, "tag-close") && (inBlock || blockTags.indexOf(tagName) !== -1)) || (is(token, "doctype") && value === ">")) {
                    if (inBlock && nextToken && nextToken.value === "</")
                        rowsToAdd = -1;
                    else
                        rowsToAdd = 1;
                }
                if (nextToken && singletonTags.indexOf(nextToken.value) === -1) {
                    if (is(token, "tag-open") && value === "</") {
                        depth--;
                    }
                    else if (is(token, "tag-open") && value === "<") {
                        depth++;
                    }
                    else if (is(token, "tag-close") && value === "/>") {
                        depth--;
                    }
                }
                if (is(token, "tag-name")) {
                    tagName = value;
                }
                row = curRow;
            }
        }
        token = nextToken;
    }
    code = code.trim();
    session.doc.setValue(code);
};
exports.commands = [{
        name: "beautify",
        description: "Format selection (Beautify)",
        exec: function (editor) {
            exports.beautify(editor.session);
        },
        bindKey: "Ctrl-Shift-B"
    }];

});                (function() {
                    ace.require(["ace/ext/beautify"], function(m) {
                        if (typeof module == "object" && typeof exports == "object" && module) {
                            module.exports = m;
                        }
                    });
                })();