345 lines
10 KiB
JavaScript
345 lines
10 KiB
JavaScript
/**
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* pretty-data - nodejs plugin to pretty-print or minify data in XML, JSON and CSS formats.
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*
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* Version - 0.40.0
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* Copyright (c) 2012 Vadim Kiryukhin
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* vkiryukhin @ gmail.com
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* http://www.eslinstructor.net/pretty-data/
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*
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* Dual licensed under the MIT and GPL licenses:
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* http://www.opensource.org/licenses/mit-license.php
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* http://www.gnu.org/licenses/gpl.html
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*
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* pd.xml(data ) - pretty print XML;
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* pd.json(data) - pretty print JSON;
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* pd.css(data ) - pretty print CSS;
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* pd.sql(data) - pretty print SQL;
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*
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* pd.xmlmin(data [, preserveComments] ) - minify XML;
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* pd.jsonmin(data) - minify JSON;
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* pd.cssmin(data [, preserveComments] ) - minify CSS;
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* pd.sqlmin(data) - minify SQL;
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*
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* PARAMETERS:
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*
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* @data - String; XML, JSON, CSS or SQL text to beautify;
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* @preserveComments - Bool (optional, used in minxml and mincss only);
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* Set this flag to true to prevent removing comments from @text;
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* @Return - String;
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*
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* USAGE:
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*
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* var pd = require('pretty-data').pd;
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*
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* var xml_pp = pd.xml(xml_text);
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* var xml_min = pd.xmlmin(xml_text [,true]);
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* var json_pp = pd.json(json_text);
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* var json_min = pd.jsonmin(json_text);
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* var css_pp = pd.css(css_text);
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* var css_min = pd.cssmin(css_text [, true]);
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* var sql_pp = pd.sql(sql_text);
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* var sql_min = pd.sqlmin(sql_text);
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*
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* TEST:
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* comp-name:pretty-data$ node ./test/test_xml
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* comp-name:pretty-data$ node ./test/test_json
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* comp-name:pretty-data$ node ./test/test_css
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* comp-name:pretty-data$ node ./test/test_sql
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*/
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function pp() {
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this.shift = ['\n']; // array of shifts
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this.step = ' ', // 2 spaces
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maxdeep = 100, // nesting level
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ix = 0;
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// initialize array with shifts //
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for(ix=0;ix<maxdeep;ix++){
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this.shift.push(this.shift[ix]+this.step);
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}
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};
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// ----------------------- XML section ----------------------------------------------------
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pp.prototype.xml = function(text) {
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var ar = text.replace(/>\s{0,}</g,"><")
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.replace(/</g,"~::~<")
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.replace(/xmlns\:/g,"~::~xmlns:")
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.replace(/xmlns\=/g,"~::~xmlns=")
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.split('~::~'),
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len = ar.length,
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inComment = false,
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deep = 0,
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str = '',
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ix = 0;
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for(ix=0;ix<len;ix++) {
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// start comment or <![CDATA[...]]> or <!DOCTYPE //
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if(ar[ix].search(/<!/) > -1) {
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str += this.shift[deep]+ar[ix];
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inComment = true;
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// end comment or <![CDATA[...]]> //
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if(ar[ix].search(/-->/) > -1 || ar[ix].search(/\]>/) > -1 || ar[ix].search(/!DOCTYPE/) > -1 ) {
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inComment = false;
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}
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} else
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// end comment or <![CDATA[...]]> //
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if(ar[ix].search(/-->/) > -1 || ar[ix].search(/\]>/) > -1) {
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str += ar[ix];
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inComment = false;
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} else
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// <elm></elm> //
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if( /^<\w/.exec(ar[ix-1]) && /^<\/\w/.exec(ar[ix]) &&
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/^<[\w:\-\.\,]+/.exec(ar[ix-1]) == /^<\/[\w:\-\.\,]+/.exec(ar[ix])[0].replace('/','')) {
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str += ar[ix];
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if(!inComment) deep--;
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} else
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// <elm> //
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if(ar[ix].search(/<\w/) > -1 && ar[ix].search(/<\//) == -1 && ar[ix].search(/\/>/) == -1 ) {
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str = !inComment ? str += this.shift[deep++]+ar[ix] : str += ar[ix];
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} else
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// <elm>...</elm> //
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if(ar[ix].search(/<\w/) > -1 && ar[ix].search(/<\//) > -1) {
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str = !inComment ? str += this.shift[deep]+ar[ix] : str += ar[ix];
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} else
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// </elm> //
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if(ar[ix].search(/<\//) > -1) {
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str = !inComment ? str += this.shift[--deep]+ar[ix] : str += ar[ix];
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} else
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// <elm/> //
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if(ar[ix].search(/\/>/) > -1 ) {
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str = !inComment ? str += this.shift[deep]+ar[ix] : str += ar[ix];
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} else
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// <? xml ... ?> //
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if(ar[ix].search(/<\?/) > -1) {
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str += this.shift[deep]+ar[ix];
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} else
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// xmlns //
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if( ar[ix].search(/xmlns\:/) > -1 || ar[ix].search(/xmlns\=/) > -1) {
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str += this.shift[deep]+ar[ix];
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}
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else {
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str += ar[ix];
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}
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}
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return (str[0] == '\n') ? str.slice(1) : str;
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}
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// ----------------------- JSON section ----------------------------------------------------
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pp.prototype.json = function(text) {
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if ( typeof text === "string" ) {
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return JSON.stringify(JSON.parse(text), null, this.step);
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}
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if ( typeof text === "object" ) {
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return JSON.stringify(text, null, this.step);
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}
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return null;
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}
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// ----------------------- CSS section ----------------------------------------------------
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pp.prototype.css = function(text) {
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var ar = text.replace(/\s{1,}/g,' ')
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.replace(/\{/g,"{~::~")
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.replace(/\}/g,"~::~}~::~")
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.replace(/\;/g,";~::~")
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.replace(/\/\*/g,"~::~/*")
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.replace(/\*\//g,"*/~::~")
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.replace(/~::~\s{0,}~::~/g,"~::~")
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.split('~::~'),
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len = ar.length,
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deep = 0,
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str = '',
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ix = 0;
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for(ix=0;ix<len;ix++) {
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if( /\{/.exec(ar[ix])) {
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str += this.shift[deep++]+ar[ix];
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} else
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if( /\}/.exec(ar[ix])) {
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str += this.shift[--deep]+ar[ix];
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} else
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if( /\*\\/.exec(ar[ix])) {
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str += this.shift[deep]+ar[ix];
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}
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else {
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str += this.shift[deep]+ar[ix];
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}
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}
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return str.replace(/^\n{1,}/,'');
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}
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// ----------------------- SQL section ----------------------------------------------------
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function isSubquery(str, parenthesisLevel) {
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return parenthesisLevel - (str.replace(/\(/g,'').length - str.replace(/\)/g,'').length )
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}
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function split_sql(str, tab) {
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return str.replace(/\s{1,}/g," ")
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.replace(/ AND /ig,"~::~"+tab+tab+"AND ")
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.replace(/ BETWEEN /ig,"~::~"+tab+"BETWEEN ")
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.replace(/ CASE /ig,"~::~"+tab+"CASE ")
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.replace(/ ELSE /ig,"~::~"+tab+"ELSE ")
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.replace(/ END /ig,"~::~"+tab+"END ")
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.replace(/ FROM /ig,"~::~FROM ")
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.replace(/ GROUP\s{1,}BY/ig,"~::~GROUP BY ")
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.replace(/ HAVING /ig,"~::~HAVING ")
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//.replace(/ IN /ig,"~::~"+tab+"IN ")
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.replace(/ IN /ig," IN ")
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.replace(/ JOIN /ig,"~::~JOIN ")
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.replace(/ CROSS~::~{1,}JOIN /ig,"~::~CROSS JOIN ")
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.replace(/ INNER~::~{1,}JOIN /ig,"~::~INNER JOIN ")
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.replace(/ LEFT~::~{1,}JOIN /ig,"~::~LEFT JOIN ")
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.replace(/ RIGHT~::~{1,}JOIN /ig,"~::~RIGHT JOIN ")
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.replace(/ ON /ig,"~::~"+tab+"ON ")
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.replace(/ OR /ig,"~::~"+tab+tab+"OR ")
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.replace(/ ORDER\s{1,}BY/ig,"~::~ORDER BY ")
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.replace(/ OVER /ig,"~::~"+tab+"OVER ")
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.replace(/\(\s{0,}SELECT /ig,"~::~(SELECT ")
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.replace(/\)\s{0,}SELECT /ig,")~::~SELECT ")
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.replace(/ THEN /ig," THEN~::~"+tab+"")
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.replace(/ UNION /ig,"~::~UNION~::~")
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.replace(/ USING /ig,"~::~USING ")
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.replace(/ WHEN /ig,"~::~"+tab+"WHEN ")
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.replace(/ WHERE /ig,"~::~WHERE ")
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.replace(/ WITH /ig,"~::~WITH ")
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//.replace(/\,\s{0,}\(/ig,",~::~( ")
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//.replace(/\,/ig,",~::~"+tab+tab+"")
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.replace(/ ALL /ig," ALL ")
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.replace(/ AS /ig," AS ")
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.replace(/ ASC /ig," ASC ")
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.replace(/ DESC /ig," DESC ")
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.replace(/ DISTINCT /ig," DISTINCT ")
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.replace(/ EXISTS /ig," EXISTS ")
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.replace(/ NOT /ig," NOT ")
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.replace(/ NULL /ig," NULL ")
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.replace(/ LIKE /ig," LIKE ")
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.replace(/\s{0,}SELECT /ig,"SELECT ")
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.replace(/~::~{1,}/g,"~::~")
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.split('~::~');
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}
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pp.prototype.sql = function(text) {
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var ar_by_quote = text.replace(/\s{1,}/g," ")
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.replace(/\'/ig,"~::~\'")
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.split('~::~'),
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len = ar_by_quote.length,
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ar = [],
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deep = 0,
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tab = this.step,//+this.step,
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inComment = true,
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inQuote = false,
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parenthesisLevel = 0,
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str = '',
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ix = 0;
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for(ix=0;ix<len;ix++) {
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if(ix%2) {
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ar = ar.concat(ar_by_quote[ix]);
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} else {
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ar = ar.concat(split_sql(ar_by_quote[ix], tab) );
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}
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}
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len = ar.length;
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for(ix=0;ix<len;ix++) {
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parenthesisLevel = isSubquery(ar[ix], parenthesisLevel);
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if( /\s{0,}\s{0,}SELECT\s{0,}/.exec(ar[ix])) {
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ar[ix] = ar[ix].replace(/\,/g,",\n"+tab+tab+"")
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}
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if( /\s{0,}\(\s{0,}SELECT\s{0,}/.exec(ar[ix])) {
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deep++;
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str += this.shift[deep]+ar[ix];
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} else
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if( /\'/.exec(ar[ix]) ) {
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if(parenthesisLevel<1 && deep) {
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deep--;
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}
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str += ar[ix];
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}
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else {
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str += this.shift[deep]+ar[ix];
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if(parenthesisLevel<1 && deep) {
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deep--;
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}
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}
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}
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str = str.replace(/^\n{1,}/,'').replace(/\n{1,}/g,"\n");
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return str;
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}
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// ----------------------- min section ----------------------------------------------------
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pp.prototype.xmlmin = function(text, preserveComments) {
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var str = preserveComments ? text
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: text.replace(/\<![ \r\n\t]*(--([^\-]|[\r\n]|-[^\-])*--[ \r\n\t]*)\>/g,"");
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return str.replace(/>\s{0,}</g,"><");
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}
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pp.prototype.jsonmin = function(text) {
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return text.replace(/\s{0,}\{\s{0,}/g,"{")
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.replace(/\s{0,}\[$/g,"[")
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.replace(/\[\s{0,}/g,"[")
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.replace(/:\s{0,}\[/g,':[')
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.replace(/\s{0,}\}\s{0,}/g,"}")
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.replace(/\s{0,}\]\s{0,}/g,"]")
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.replace(/\"\s{0,}\,/g,'",')
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.replace(/\,\s{0,}\"/g,',"')
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.replace(/\"\s{0,}:/g,'":')
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.replace(/:\s{0,}\"/g,':"')
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.replace(/:\s{0,}\[/g,':[')
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.replace(/\,\s{0,}\[/g,',[')
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.replace(/\,\s{2,}/g,', ')
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.replace(/\]\s{0,},\s{0,}\[/g,'],[');
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}
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pp.prototype.cssmin = function(text, preserveComments) {
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var str = preserveComments ? text
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: text.replace(/\/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+\//g,"") ;
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return str.replace(/\s{1,}/g,' ')
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.replace(/\{\s{1,}/g,"{")
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.replace(/\}\s{1,}/g,"}")
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.replace(/\;\s{1,}/g,";")
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.replace(/\/\*\s{1,}/g,"/*")
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.replace(/\*\/\s{1,}/g,"*/");
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}
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pp.prototype.sqlmin = function(text) {
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return text.replace(/\s{1,}/g," ").replace(/\s{1,}\(/,"(").replace(/\s{1,}\)/,")");
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}
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// --------------------------------------------------------------------------------------------
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exports.pd= new pp;
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