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+'use strict';
+
+var CleanCSS = require('clean-css');
+var decode = require('he').decode;
+var HTMLParser = require('./htmlparser').HTMLParser;
+var RelateUrl = require('relateurl');
+var TokenChain = require('./tokenchain');
+var UglifyJS = require('uglify-js');
+var utils = require('./utils');
+
+function trimWhitespace(str) {
+ return str && str.replace(/^[ \n\r\t\f]+/, '').replace(/[ \n\r\t\f]+$/, '');
+}
+
+function collapseWhitespaceAll(str) {
+ // Non-breaking space is specifically handled inside the replacer function here:
+ return str && str.replace(/[ \n\r\t\f\xA0]+/g, function(spaces) {
+ return spaces === '\t' ? '\t' : spaces.replace(/(^|\xA0+)[^\xA0]+/g, '$1 ');
+ });
+}
+
+function collapseWhitespace(str, options, trimLeft, trimRight, collapseAll) {
+ var lineBreakBefore = '', lineBreakAfter = '';
+
+ if (options.preserveLineBreaks) {
+ str = str.replace(/^[ \n\r\t\f]*?[\n\r][ \n\r\t\f]*/, function() {
+ lineBreakBefore = '\n';
+ return '';
+ }).replace(/[ \n\r\t\f]*?[\n\r][ \n\r\t\f]*$/, function() {
+ lineBreakAfter = '\n';
+ return '';
+ });
+ }
+
+ if (trimLeft) {
+ // Non-breaking space is specifically handled inside the replacer function here:
+ str = str.replace(/^[ \n\r\t\f\xA0]+/, function(spaces) {
+ var conservative = !lineBreakBefore && options.conservativeCollapse;
+ if (conservative && spaces === '\t') {
+ return '\t';
+ }
+ return spaces.replace(/^[^\xA0]+/, '').replace(/(\xA0+)[^\xA0]+/g, '$1 ') || (conservative ? ' ' : '');
+ });
+ }
+
+ if (trimRight) {
+ // Non-breaking space is specifically handled inside the replacer function here:
+ str = str.replace(/[ \n\r\t\f\xA0]+$/, function(spaces) {
+ var conservative = !lineBreakAfter && options.conservativeCollapse;
+ if (conservative && spaces === '\t') {
+ return '\t';
+ }
+ return spaces.replace(/[^\xA0]+(\xA0+)/g, ' $1').replace(/[^\xA0]+$/, '') || (conservative ? ' ' : '');
+ });
+ }
+
+ if (collapseAll) {
+ // strip non space whitespace then compress spaces to one
+ str = collapseWhitespaceAll(str);
+ }
+
+ return lineBreakBefore + str + lineBreakAfter;
+}
+
+var createMapFromString = utils.createMapFromString;
+// non-empty tags that will maintain whitespace around them
+var inlineTags = createMapFromString('a,abbr,acronym,b,bdi,bdo,big,button,cite,code,del,dfn,em,font,i,ins,kbd,label,mark,math,nobr,object,q,rp,rt,rtc,ruby,s,samp,select,small,span,strike,strong,sub,sup,svg,textarea,time,tt,u,var');
+// non-empty tags that will maintain whitespace within them
+var inlineTextTags = createMapFromString('a,abbr,acronym,b,big,del,em,font,i,ins,kbd,mark,nobr,rp,s,samp,small,span,strike,strong,sub,sup,time,tt,u,var');
+// self-closing tags that will maintain whitespace around them
+var selfClosingInlineTags = createMapFromString('comment,img,input,wbr');
+
+function collapseWhitespaceSmart(str, prevTag, nextTag, options) {
+ var trimLeft = prevTag && !selfClosingInlineTags(prevTag);
+ if (trimLeft && !options.collapseInlineTagWhitespace) {
+ trimLeft = prevTag.charAt(0) === '/' ? !inlineTags(prevTag.slice(1)) : !inlineTextTags(prevTag);
+ }
+ var trimRight = nextTag && !selfClosingInlineTags(nextTag);
+ if (trimRight && !options.collapseInlineTagWhitespace) {
+ trimRight = nextTag.charAt(0) === '/' ? !inlineTextTags(nextTag.slice(1)) : !inlineTags(nextTag);
+ }
+ return collapseWhitespace(str, options, trimLeft, trimRight, prevTag && nextTag);
+}
+
+function isConditionalComment(text) {
+ return /^\[if\s[^\]]+]|\[endif]$/.test(text);
+}
+
+function isIgnoredComment(text, options) {
+ for (var i = 0, len = options.ignoreCustomComments.length; i < len; i++) {
+ if (options.ignoreCustomComments[i].test(text)) {
+ return true;
+ }
+ }
+ return false;
+}
+
+function isEventAttribute(attrName, options) {
+ var patterns = options.customEventAttributes;
+ if (patterns) {
+ for (var i = patterns.length; i--;) {
+ if (patterns[i].test(attrName)) {
+ return true;
+ }
+ }
+ return false;
+ }
+ return /^on[a-z]{3,}$/.test(attrName);
+}
+
+function canRemoveAttributeQuotes(value) {
+ // https://mathiasbynens.be/notes/unquoted-attribute-values
+ return /^[^ \t\n\f\r"'`=<>]+$/.test(value);
+}
+
+function attributesInclude(attributes, attribute) {
+ for (var i = attributes.length; i--;) {
+ if (attributes[i].name.toLowerCase() === attribute) {
+ return true;
+ }
+ }
+ return false;
+}
+
+function isAttributeRedundant(tag, attrName, attrValue, attrs) {
+ attrValue = attrValue ? trimWhitespace(attrValue.toLowerCase()) : '';
+
+ return (
+ tag === 'script' &&
+ attrName === 'language' &&
+ attrValue === 'javascript' ||
+
+ tag === 'form' &&
+ attrName === 'method' &&
+ attrValue === 'get' ||
+
+ tag === 'input' &&
+ attrName === 'type' &&
+ attrValue === 'text' ||
+
+ tag === 'script' &&
+ attrName === 'charset' &&
+ !attributesInclude(attrs, 'src') ||
+
+ tag === 'a' &&
+ attrName === 'name' &&
+ attributesInclude(attrs, 'id') ||
+
+ tag === 'area' &&
+ attrName === 'shape' &&
+ attrValue === 'rect'
+ );
+}
+
+// https://mathiasbynens.be/demo/javascript-mime-type
+// https://developer.mozilla.org/en/docs/Web/HTML/Element/script#attr-type
+var executableScriptsMimetypes = utils.createMap([
+ 'text/javascript',
+ 'text/ecmascript',
+ 'text/jscript',
+ 'application/javascript',
+ 'application/x-javascript',
+ 'application/ecmascript'
+]);
+
+function isScriptTypeAttribute(attrValue) {
+ attrValue = trimWhitespace(attrValue.split(/;/, 2)[0]).toLowerCase();
+ return attrValue === '' || executableScriptsMimetypes(attrValue);
+}
+
+function isExecutableScript(tag, attrs) {
+ if (tag !== 'script') {
+ return false;
+ }
+ for (var i = 0, len = attrs.length; i < len; i++) {
+ var attrName = attrs[i].name.toLowerCase();
+ if (attrName === 'type') {
+ return isScriptTypeAttribute(attrs[i].value);
+ }
+ }
+ return true;
+}
+
+function isStyleLinkTypeAttribute(attrValue) {
+ attrValue = trimWhitespace(attrValue).toLowerCase();
+ return attrValue === '' || attrValue === 'text/css';
+}
+
+function isStyleSheet(tag, attrs) {
+ if (tag !== 'style') {
+ return false;
+ }
+ for (var i = 0, len = attrs.length; i < len; i++) {
+ var attrName = attrs[i].name.toLowerCase();
+ if (attrName === 'type') {
+ return isStyleLinkTypeAttribute(attrs[i].value);
+ }
+ }
+ return true;
+}
+
+var isSimpleBoolean = createMapFromString('allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,default,defaultchecked,defaultmuted,defaultselected,defer,disabled,enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,required,reversed,scoped,seamless,selected,sortable,truespeed,typemustmatch,visible');
+var isBooleanValue = createMapFromString('true,false');
+
+function isBooleanAttribute(attrName, attrValue) {
+ return isSimpleBoolean(attrName) || attrName === 'draggable' && !isBooleanValue(attrValue);
+}
+
+function isUriTypeAttribute(attrName, tag) {
+ return (
+ /^(?:a|area|link|base)$/.test(tag) && attrName === 'href' ||
+ tag === 'img' && /^(?:src|longdesc|usemap)$/.test(attrName) ||
+ tag === 'object' && /^(?:classid|codebase|data|usemap)$/.test(attrName) ||
+ tag === 'q' && attrName === 'cite' ||
+ tag === 'blockquote' && attrName === 'cite' ||
+ (tag === 'ins' || tag === 'del') && attrName === 'cite' ||
+ tag === 'form' && attrName === 'action' ||
+ tag === 'input' && (attrName === 'src' || attrName === 'usemap') ||
+ tag === 'head' && attrName === 'profile' ||
+ tag === 'script' && (attrName === 'src' || attrName === 'for')
+ );
+}
+
+function isNumberTypeAttribute(attrName, tag) {
+ return (
+ /^(?:a|area|object|button)$/.test(tag) && attrName === 'tabindex' ||
+ tag === 'input' && (attrName === 'maxlength' || attrName === 'tabindex') ||
+ tag === 'select' && (attrName === 'size' || attrName === 'tabindex') ||
+ tag === 'textarea' && /^(?:rows|cols|tabindex)$/.test(attrName) ||
+ tag === 'colgroup' && attrName === 'span' ||
+ tag === 'col' && attrName === 'span' ||
+ (tag === 'th' || tag === 'td') && (attrName === 'rowspan' || attrName === 'colspan')
+ );
+}
+
+function isLinkType(tag, attrs, value) {
+ if (tag !== 'link') {
+ return false;
+ }
+ for (var i = 0, len = attrs.length; i < len; i++) {
+ if (attrs[i].name === 'rel' && attrs[i].value === value) {
+ return true;
+ }
+ }
+}
+
+function isMediaQuery(tag, attrs, attrName) {
+ return attrName === 'media' && (isLinkType(tag, attrs, 'stylesheet') || isStyleSheet(tag, attrs));
+}
+
+var srcsetTags = createMapFromString('img,source');
+
+function isSrcset(attrName, tag) {
+ return attrName === 'srcset' && srcsetTags(tag);
+}
+
+function cleanAttributeValue(tag, attrName, attrValue, options, attrs) {
+ if (isEventAttribute(attrName, options)) {
+ attrValue = trimWhitespace(attrValue).replace(/^javascript:\s*/i, '');
+ return options.minifyJS(attrValue, true);
+ }
+ else if (attrName === 'class') {
+ attrValue = trimWhitespace(attrValue);
+ if (options.sortClassName) {
+ attrValue = options.sortClassName(attrValue);
+ }
+ else {
+ attrValue = collapseWhitespaceAll(attrValue);
+ }
+ return attrValue;
+ }
+ else if (isUriTypeAttribute(attrName, tag)) {
+ attrValue = trimWhitespace(attrValue);
+ return isLinkType(tag, attrs, 'canonical') ? attrValue : options.minifyURLs(attrValue);
+ }
+ else if (isNumberTypeAttribute(attrName, tag)) {
+ return trimWhitespace(attrValue);
+ }
+ else if (attrName === 'style') {
+ attrValue = trimWhitespace(attrValue);
+ if (attrValue) {
+ if (/;$/.test(attrValue) && !/&#?[0-9a-zA-Z]+;$/.test(attrValue)) {
+ attrValue = attrValue.replace(/\s*;$/, ';');
+ }
+ attrValue = options.minifyCSS(attrValue, 'inline');
+ }
+ return attrValue;
+ }
+ else if (isSrcset(attrName, tag)) {
+ // https://html.spec.whatwg.org/multipage/embedded-content.html#attr-img-srcset
+ attrValue = trimWhitespace(attrValue).split(/\s+,\s*|\s*,\s+/).map(function(candidate) {
+ var url = candidate;
+ var descriptor = '';
+ var match = candidate.match(/\s+([1-9][0-9]*w|[0-9]+(?:\.[0-9]+)?x)$/);
+ if (match) {
+ url = url.slice(0, -match[0].length);
+ var num = +match[1].slice(0, -1);
+ var suffix = match[1].slice(-1);
+ if (num !== 1 || suffix !== 'x') {
+ descriptor = ' ' + num + suffix;
+ }
+ }
+ return options.minifyURLs(url) + descriptor;
+ }).join(', ');
+ }
+ else if (isMetaViewport(tag, attrs) && attrName === 'content') {
+ attrValue = attrValue.replace(/\s+/g, '').replace(/[0-9]+\.[0-9]+/g, function(numString) {
+ // "0.90000" -> "0.9"
+ // "1.0" -> "1"
+ // "1.0001" -> "1.0001" (unchanged)
+ return (+numString).toString();
+ });
+ }
+ else if (options.customAttrCollapse && options.customAttrCollapse.test(attrName)) {
+ attrValue = attrValue.replace(/\n+|\r+|\s{2,}/g, '');
+ }
+ else if (tag === 'script' && attrName === 'type') {
+ attrValue = trimWhitespace(attrValue.replace(/\s*;\s*/g, ';'));
+ }
+ else if (isMediaQuery(tag, attrs, attrName)) {
+ attrValue = trimWhitespace(attrValue);
+ return options.minifyCSS(attrValue, 'media');
+ }
+ return attrValue;
+}
+
+function isMetaViewport(tag, attrs) {
+ if (tag !== 'meta') {
+ return false;
+ }
+ for (var i = 0, len = attrs.length; i < len; i++) {
+ if (attrs[i].name === 'name' && attrs[i].value === 'viewport') {
+ return true;
+ }
+ }
+}
+
+function ignoreCSS(id) {
+ return '/* clean-css ignore:start */' + id + '/* clean-css ignore:end */';
+}
+
+// Wrap CSS declarations for CleanCSS > 3.x
+// See https://github.com/jakubpawlowicz/clean-css/issues/418
+function wrapCSS(text, type) {
+ switch (type) {
+ case 'inline':
+ return '*{' + text + '}';
+ case 'media':
+ return '@media ' + text + '{a{top:0}}';
+ default:
+ return text;
+ }
+}
+
+function unwrapCSS(text, type) {
+ var matches;
+ switch (type) {
+ case 'inline':
+ matches = text.match(/^\*\{([\s\S]*)\}$/);
+ break;
+ case 'media':
+ matches = text.match(/^@media ([\s\S]*?)\s*{[\s\S]*}$/);
+ break;
+ }
+ return matches ? matches[1] : text;
+}
+
+function cleanConditionalComment(comment, options) {
+ return options.processConditionalComments ? comment.replace(/^(\[if\s[^\]]+]>)([\s\S]*?)(<!\[endif])$/, function(match, prefix, text, suffix) {
+ return prefix + minify(text, options, true) + suffix;
+ }) : comment;
+}
+
+function processScript(text, options, currentAttrs) {
+ for (var i = 0, len = currentAttrs.length; i < len; i++) {
+ if (currentAttrs[i].name.toLowerCase() === 'type' &&
+ options.processScripts.indexOf(currentAttrs[i].value) > -1) {
+ return minify(text, options);
+ }
+ }
+ return text;
+}
+
+// Tag omission rules from https://html.spec.whatwg.org/multipage/syntax.html#optional-tags
+// with the following deviations:
+// - retain <body> if followed by <noscript>
+// - </rb>, </rt>, </rtc>, </rp> & </tfoot> follow https://www.w3.org/TR/html5/syntax.html#optional-tags
+// - retain all tags which are adjacent to non-standard HTML tags
+var optionalStartTags = createMapFromString('html,head,body,colgroup,tbody');
+var optionalEndTags = createMapFromString('html,head,body,li,dt,dd,p,rb,rt,rtc,rp,optgroup,option,colgroup,caption,thead,tbody,tfoot,tr,td,th');
+var headerTags = createMapFromString('meta,link,script,style,template,noscript');
+var descriptionTags = createMapFromString('dt,dd');
+var pBlockTags = createMapFromString('address,article,aside,blockquote,details,div,dl,fieldset,figcaption,figure,footer,form,h1,h2,h3,h4,h5,h6,header,hgroup,hr,main,menu,nav,ol,p,pre,section,table,ul');
+var pInlineTags = createMapFromString('a,audio,del,ins,map,noscript,video');
+var rubyTags = createMapFromString('rb,rt,rtc,rp');
+var rtcTag = createMapFromString('rb,rtc,rp');
+var optionTag = createMapFromString('option,optgroup');
+var tableContentTags = createMapFromString('tbody,tfoot');
+var tableSectionTags = createMapFromString('thead,tbody,tfoot');
+var cellTags = createMapFromString('td,th');
+var topLevelTags = createMapFromString('html,head,body');
+var compactTags = createMapFromString('html,body');
+var looseTags = createMapFromString('head,colgroup,caption');
+var trailingTags = createMapFromString('dt,thead');
+var htmlTags = createMapFromString('a,abbr,acronym,address,applet,area,article,aside,audio,b,base,basefont,bdi,bdo,bgsound,big,blink,blockquote,body,br,button,canvas,caption,center,cite,code,col,colgroup,command,content,data,datalist,dd,del,details,dfn,dialog,dir,div,dl,dt,element,em,embed,fieldset,figcaption,figure,font,footer,form,frame,frameset,h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,i,iframe,image,img,input,ins,isindex,kbd,keygen,label,legend,li,link,listing,main,map,mark,marquee,menu,menuitem,meta,meter,multicol,nav,nobr,noembed,noframes,noscript,object,ol,optgroup,option,output,p,param,picture,plaintext,pre,progress,q,rb,rp,rt,rtc,ruby,s,samp,script,section,select,shadow,small,source,spacer,span,strike,strong,style,sub,summary,sup,table,tbody,td,template,textarea,tfoot,th,thead,time,title,tr,track,tt,u,ul,var,video,wbr,xmp');
+
+function canRemoveParentTag(optionalStartTag, tag) {
+ switch (optionalStartTag) {
+ case 'html':
+ case 'head':
+ return true;
+ case 'body':
+ return !headerTags(tag);
+ case 'colgroup':
+ return tag === 'col';
+ case 'tbody':
+ return tag === 'tr';
+ }
+ return false;
+}
+
+function isStartTagMandatory(optionalEndTag, tag) {
+ switch (tag) {
+ case 'colgroup':
+ return optionalEndTag === 'colgroup';
+ case 'tbody':
+ return tableSectionTags(optionalEndTag);
+ }
+ return false;
+}
+
+function canRemovePrecedingTag(optionalEndTag, tag) {
+ switch (optionalEndTag) {
+ case 'html':
+ case 'head':
+ case 'body':
+ case 'colgroup':
+ case 'caption':
+ return true;
+ case 'li':
+ case 'optgroup':
+ case 'tr':
+ return tag === optionalEndTag;
+ case 'dt':
+ case 'dd':
+ return descriptionTags(tag);
+ case 'p':
+ return pBlockTags(tag);
+ case 'rb':
+ case 'rt':
+ case 'rp':
+ return rubyTags(tag);
+ case 'rtc':
+ return rtcTag(tag);
+ case 'option':
+ return optionTag(tag);
+ case 'thead':
+ case 'tbody':
+ return tableContentTags(tag);
+ case 'tfoot':
+ return tag === 'tbody';
+ case 'td':
+ case 'th':
+ return cellTags(tag);
+ }
+ return false;
+}
+
+var reEmptyAttribute = new RegExp(
+ '^(?:class|id|style|title|lang|dir|on(?:focus|blur|change|click|dblclick|mouse(' +
+ '?:down|up|over|move|out)|key(?:press|down|up)))$');
+
+function canDeleteEmptyAttribute(tag, attrName, attrValue, options) {
+ var isValueEmpty = !attrValue || /^\s*$/.test(attrValue);
+ if (!isValueEmpty) {
+ return false;
+ }
+ if (typeof options.removeEmptyAttributes === 'function') {
+ return options.removeEmptyAttributes(attrName, tag);
+ }
+ return tag === 'input' && attrName === 'value' || reEmptyAttribute.test(attrName);
+}
+
+function hasAttrName(name, attrs) {
+ for (var i = attrs.length - 1; i >= 0; i--) {
+ if (attrs[i].name === name) {
+ return true;
+ }
+ }
+ return false;
+}
+
+function canRemoveElement(tag, attrs) {
+ switch (tag) {
+ case 'textarea':
+ return false;
+ case 'audio':
+ case 'script':
+ case 'video':
+ if (hasAttrName('src', attrs)) {
+ return false;
+ }
+ break;
+ case 'iframe':
+ if (hasAttrName('src', attrs) || hasAttrName('srcdoc', attrs)) {
+ return false;
+ }
+ break;
+ case 'object':
+ if (hasAttrName('data', attrs)) {
+ return false;
+ }
+ break;
+ case 'applet':
+ if (hasAttrName('code', attrs)) {
+ return false;
+ }
+ break;
+ }
+ return true;
+}
+
+function canCollapseWhitespace(tag) {
+ return !/^(?:script|style|pre|textarea)$/.test(tag);
+}
+
+function canTrimWhitespace(tag) {
+ return !/^(?:pre|textarea)$/.test(tag);
+}
+
+function normalizeAttr(attr, attrs, tag, options) {
+ var attrName = options.name(attr.name),
+ attrValue = attr.value;
+
+ if (options.decodeEntities && attrValue) {
+ attrValue = decode(attrValue, { isAttributeValue: true });
+ }
+
+ if (options.removeRedundantAttributes &&
+ isAttributeRedundant(tag, attrName, attrValue, attrs) ||
+ options.removeScriptTypeAttributes && tag === 'script' &&
+ attrName === 'type' && isScriptTypeAttribute(attrValue) ||
+ options.removeStyleLinkTypeAttributes && (tag === 'style' || tag === 'link') &&
+ attrName === 'type' && isStyleLinkTypeAttribute(attrValue)) {
+ return;
+ }
+
+ if (attrValue) {
+ attrValue = cleanAttributeValue(tag, attrName, attrValue, options, attrs);
+ }
+
+ if (options.removeEmptyAttributes &&
+ canDeleteEmptyAttribute(tag, attrName, attrValue, options)) {
+ return;
+ }
+
+ if (options.decodeEntities && attrValue) {
+ attrValue = attrValue.replace(/&(#?[0-9a-zA-Z]+;)/g, '&amp;$1');
+ }
+
+ return {
+ attr: attr,
+ name: attrName,
+ value: attrValue
+ };
+}
+
+function buildAttr(normalized, hasUnarySlash, options, isLast, uidAttr) {
+ var attrName = normalized.name,
+ attrValue = normalized.value,
+ attr = normalized.attr,
+ attrQuote = attr.quote,
+ attrFragment,
+ emittedAttrValue;
+
+ if (typeof attrValue !== 'undefined' && (!options.removeAttributeQuotes ||
+ ~attrValue.indexOf(uidAttr) || !canRemoveAttributeQuotes(attrValue))) {
+ if (!options.preventAttributesEscaping) {
+ if (typeof options.quoteCharacter === 'undefined') {
+ var apos = (attrValue.match(/'/g) || []).length;
+ var quot = (attrValue.match(/"/g) || []).length;
+ attrQuote = apos < quot ? '\'' : '"';
+ }
+ else {
+ attrQuote = options.quoteCharacter === '\'' ? '\'' : '"';
+ }
+ if (attrQuote === '"') {
+ attrValue = attrValue.replace(/"/g, '&#34;');
+ }
+ else {
+ attrValue = attrValue.replace(/'/g, '&#39;');
+ }
+ }
+ emittedAttrValue = attrQuote + attrValue + attrQuote;
+ if (!isLast && !options.removeTagWhitespace) {
+ emittedAttrValue += ' ';
+ }
+ }
+ // make sure trailing slash is not interpreted as HTML self-closing tag
+ else if (isLast && !hasUnarySlash && !/\/$/.test(attrValue)) {
+ emittedAttrValue = attrValue;
+ }
+ else {
+ emittedAttrValue = attrValue + ' ';
+ }
+
+ if (typeof attrValue === 'undefined' || options.collapseBooleanAttributes &&
+ isBooleanAttribute(attrName.toLowerCase(), attrValue.toLowerCase())) {
+ attrFragment = attrName;
+ if (!isLast) {
+ attrFragment += ' ';
+ }
+ }
+ else {
+ attrFragment = attrName + attr.customAssign + emittedAttrValue;
+ }
+
+ return attr.customOpen + attrFragment + attr.customClose;
+}
+
+function identity(value) {
+ return value;
+}
+
+function processOptions(values) {
+ var options = {
+ name: function(name) {
+ return name.toLowerCase();
+ },
+ canCollapseWhitespace: canCollapseWhitespace,
+ canTrimWhitespace: canTrimWhitespace,
+ html5: true,
+ ignoreCustomComments: [/^!/],
+ ignoreCustomFragments: [
+ /<%[\s\S]*?%>/,
+ /<\?[\s\S]*?\?>/
+ ],
+ includeAutoGeneratedTags: true,
+ log: identity,
+ minifyCSS: identity,
+ minifyJS: identity,
+ minifyURLs: identity
+ };
+ Object.keys(values).forEach(function(key) {
+ var value = values[key];
+ if (key === 'caseSensitive') {
+ if (value) {
+ options.name = identity;
+ }
+ }
+ else if (key === 'log') {
+ if (typeof value === 'function') {
+ options.log = value;
+ }
+ }
+ else if (key === 'minifyCSS' && typeof value !== 'function') {
+ if (!value) {
+ return;
+ }
+ if (typeof value !== 'object') {
+ value = {};
+ }
+ options.minifyCSS = function(text, type) {
+ text = text.replace(/(url\s*\(\s*)("|'|)(.*?)\2(\s*\))/ig, function(match, prefix, quote, url, suffix) {
+ return prefix + quote + options.minifyURLs(url) + quote + suffix;
+ });
+ var cleanCssOutput = new CleanCSS(value).minify(wrapCSS(text, type));
+ if (cleanCssOutput.errors.length > 0) {
+ cleanCssOutput.errors.forEach(options.log);
+ return text;
+ }
+ return unwrapCSS(cleanCssOutput.styles, type);
+ };
+ }
+ else if (key === 'minifyJS' && typeof value !== 'function') {
+ if (!value) {
+ return;
+ }
+ if (typeof value !== 'object') {
+ value = {};
+ }
+ (value.parse || (value.parse = {})).bare_returns = false;
+ options.minifyJS = function(text, inline) {
+ var start = text.match(/^\s*<!--.*/);
+ var code = start ? text.slice(start[0].length).replace(/\n\s*-->\s*$/, '') : text;
+ value.parse.bare_returns = inline;
+ var result = UglifyJS.minify(code, value);
+ if (result.error) {
+ options.log(result.error);
+ return text;
+ }
+ return result.code.replace(/;$/, '');
+ };
+ }
+ else if (key === 'minifyURLs' && typeof value !== 'function') {
+ if (!value) {
+ return;
+ }
+ if (typeof value === 'string') {
+ value = { site: value };
+ }
+ else if (typeof value !== 'object') {
+ value = {};
+ }
+ options.minifyURLs = function(text) {
+ try {
+ return RelateUrl.relate(text, value);
+ }
+ catch (err) {
+ options.log(err);
+ return text;
+ }
+ };
+ }
+ else {
+ options[key] = value;
+ }
+ });
+ return options;
+}
+
+function uniqueId(value) {
+ var id;
+ do {
+ id = Math.random().toString(36).replace(/^0\.[0-9]*/, '');
+ } while (~value.indexOf(id));
+ return id;
+}
+
+var specialContentTags = createMapFromString('script,style');
+
+function createSortFns(value, options, uidIgnore, uidAttr) {
+ var attrChains = options.sortAttributes && Object.create(null);
+ var classChain = options.sortClassName && new TokenChain();
+
+ function attrNames(attrs) {
+ return attrs.map(function(attr) {
+ return options.name(attr.name);
+ });
+ }
+
+ function shouldSkipUID(token, uid) {
+ return !uid || token.indexOf(uid) === -1;
+ }
+
+ function shouldSkipUIDs(token) {
+ return shouldSkipUID(token, uidIgnore) && shouldSkipUID(token, uidAttr);
+ }
+
+ function scan(input) {
+ var currentTag, currentType;
+ new HTMLParser(input, {
+ start: function(tag, attrs) {
+ if (attrChains) {
+ if (!attrChains[tag]) {
+ attrChains[tag] = new TokenChain();
+ }
+ attrChains[tag].add(attrNames(attrs).filter(shouldSkipUIDs));
+ }
+ for (var i = 0, len = attrs.length; i < len; i++) {
+ var attr = attrs[i];
+ if (classChain && attr.value && options.name(attr.name) === 'class') {
+ classChain.add(trimWhitespace(attr.value).split(/[ \t\n\f\r]+/).filter(shouldSkipUIDs));
+ }
+ else if (options.processScripts && attr.name.toLowerCase() === 'type') {
+ currentTag = tag;
+ currentType = attr.value;
+ }
+ }
+ },
+ end: function() {
+ currentTag = '';
+ },
+ chars: function(text) {
+ if (options.processScripts && specialContentTags(currentTag) &&
+ options.processScripts.indexOf(currentType) > -1) {
+ scan(text);
+ }
+ }
+ });
+ }
+
+ var log = options.log;
+ options.log = identity;
+ options.sortAttributes = false;
+ options.sortClassName = false;
+ scan(minify(value, options));
+ options.log = log;
+ if (attrChains) {
+ var attrSorters = Object.create(null);
+ for (var tag in attrChains) {
+ attrSorters[tag] = attrChains[tag].createSorter();
+ }
+ options.sortAttributes = function(tag, attrs) {
+ var sorter = attrSorters[tag];
+ if (sorter) {
+ var attrMap = Object.create(null);
+ var names = attrNames(attrs);
+ names.forEach(function(name, index) {
+ (attrMap[name] || (attrMap[name] = [])).push(attrs[index]);
+ });
+ sorter.sort(names).forEach(function(name, index) {
+ attrs[index] = attrMap[name].shift();
+ });
+ }
+ };
+ }
+ if (classChain) {
+ var sorter = classChain.createSorter();
+ options.sortClassName = function(value) {
+ return sorter.sort(value.split(/[ \n\f\r]+/)).join(' ');
+ };
+ }
+}
+
+function minify(value, options, partialMarkup) {
+ if (options.collapseWhitespace) {
+ value = collapseWhitespace(value, options, true, true);
+ }
+
+ var buffer = [],
+ charsPrevTag,
+ currentChars = '',
+ hasChars,
+ currentTag = '',
+ currentAttrs = [],
+ stackNoTrimWhitespace = [],
+ stackNoCollapseWhitespace = [],
+ optionalStartTag = '',
+ optionalEndTag = '',
+ ignoredMarkupChunks = [],
+ ignoredCustomMarkupChunks = [],
+ uidIgnore,
+ uidAttr,
+ uidPattern;
+
+ // temporarily replace ignored chunks with comments,
+ // so that we don't have to worry what's there.
+ // for all we care there might be
+ // completely-horribly-broken-alien-non-html-emoj-cthulhu-filled content
+ value = value.replace(/<!-- htmlmin:ignore -->([\s\S]*?)<!-- htmlmin:ignore -->/g, function(match, group1) {
+ if (!uidIgnore) {
+ uidIgnore = uniqueId(value);
+ var pattern = new RegExp('^' + uidIgnore + '([0-9]+)$');
+ if (options.ignoreCustomComments) {
+ options.ignoreCustomComments = options.ignoreCustomComments.slice();
+ }
+ else {
+ options.ignoreCustomComments = [];
+ }
+ options.ignoreCustomComments.push(pattern);
+ }
+ var token = '<!--' + uidIgnore + ignoredMarkupChunks.length + '-->';
+ ignoredMarkupChunks.push(group1);
+ return token;
+ });
+
+ var customFragments = options.ignoreCustomFragments.map(function(re) {
+ return re.source;
+ });
+ if (customFragments.length) {
+ var reCustomIgnore = new RegExp('\\s*(?:' + customFragments.join('|') + ')+\\s*', 'g');
+ // temporarily replace custom ignored fragments with unique attributes
+ value = value.replace(reCustomIgnore, function(match) {
+ if (!uidAttr) {
+ uidAttr = uniqueId(value);
+ uidPattern = new RegExp('(\\s*)' + uidAttr + '([0-9]+)(\\s*)', 'g');
+ if (options.minifyCSS) {
+ options.minifyCSS = (function(fn) {
+ return function(text, type) {
+ text = text.replace(uidPattern, function(match, prefix, index) {
+ var chunks = ignoredCustomMarkupChunks[+index];
+ return chunks[1] + uidAttr + index + chunks[2];
+ });
+ var ids = [];
+ new CleanCSS().minify(wrapCSS(text, type)).warnings.forEach(function(warning) {
+ var match = uidPattern.exec(warning);
+ if (match) {
+ var id = uidAttr + match[2];
+ text = text.replace(id, ignoreCSS(id));
+ ids.push(id);
+ }
+ });
+ text = fn(text, type);
+ ids.forEach(function(id) {
+ text = text.replace(ignoreCSS(id), id);
+ });
+ return text;
+ };
+ })(options.minifyCSS);
+ }
+ if (options.minifyJS) {
+ options.minifyJS = (function(fn) {
+ return function(text, type) {
+ return fn(text.replace(uidPattern, function(match, prefix, index) {
+ var chunks = ignoredCustomMarkupChunks[+index];
+ return chunks[1] + uidAttr + index + chunks[2];
+ }), type);
+ };
+ })(options.minifyJS);
+ }
+ }
+ var token = uidAttr + ignoredCustomMarkupChunks.length;
+ ignoredCustomMarkupChunks.push(/^(\s*)[\s\S]*?(\s*)$/.exec(match));
+ return '\t' + token + '\t';
+ });
+ }
+
+ if (options.sortAttributes && typeof options.sortAttributes !== 'function' ||
+ options.sortClassName && typeof options.sortClassName !== 'function') {
+ createSortFns(value, options, uidIgnore, uidAttr);
+ }
+
+ function _canCollapseWhitespace(tag, attrs) {
+ return options.canCollapseWhitespace(tag, attrs, canCollapseWhitespace);
+ }
+
+ function _canTrimWhitespace(tag, attrs) {
+ return options.canTrimWhitespace(tag, attrs, canTrimWhitespace);
+ }
+
+ function removeStartTag() {
+ var index = buffer.length - 1;
+ while (index > 0 && !/^<[^/!]/.test(buffer[index])) {
+ index--;
+ }
+ buffer.length = Math.max(0, index);
+ }
+
+ function removeEndTag() {
+ var index = buffer.length - 1;
+ while (index > 0 && !/^<\//.test(buffer[index])) {
+ index--;
+ }
+ buffer.length = Math.max(0, index);
+ }
+
+ // look for trailing whitespaces, bypass any inline tags
+ function trimTrailingWhitespace(index, nextTag) {
+ for (var endTag = null; index >= 0 && _canTrimWhitespace(endTag); index--) {
+ var str = buffer[index];
+ var match = str.match(/^<\/([\w:-]+)>$/);
+ if (match) {
+ endTag = match[1];
+ }
+ else if (/>$/.test(str) || (buffer[index] = collapseWhitespaceSmart(str, null, nextTag, options))) {
+ break;
+ }
+ }
+ }
+
+ // look for trailing whitespaces from previously processed text
+ // which may not be trimmed due to a following comment or an empty
+ // element which has now been removed
+ function squashTrailingWhitespace(nextTag) {
+ var charsIndex = buffer.length - 1;
+ if (buffer.length > 1) {
+ var item = buffer[buffer.length - 1];
+ if (/^(?:<!|$)/.test(item) && item.indexOf(uidIgnore) === -1) {
+ charsIndex--;
+ }
+ }
+ trimTrailingWhitespace(charsIndex, nextTag);
+ }
+
+ new HTMLParser(value, {
+ partialMarkup: partialMarkup,
+ html5: options.html5,
+
+ start: function(tag, attrs, unary, unarySlash, autoGenerated) {
+ if (tag.toLowerCase() === 'svg') {
+ options = Object.create(options);
+ options.caseSensitive = true;
+ options.keepClosingSlash = true;
+ options.name = identity;
+ }
+ tag = options.name(tag);
+ currentTag = tag;
+ charsPrevTag = tag;
+ if (!inlineTextTags(tag)) {
+ currentChars = '';
+ }
+ hasChars = false;
+ currentAttrs = attrs;
+
+ var optional = options.removeOptionalTags;
+ if (optional) {
+ var htmlTag = htmlTags(tag);
+ // <html> may be omitted if first thing inside is not comment
+ // <head> may be omitted if first thing inside is an element
+ // <body> may be omitted if first thing inside is not space, comment, <meta>, <link>, <script>, <style> or <template>
+ // <colgroup> may be omitted if first thing inside is <col>
+ // <tbody> may be omitted if first thing inside is <tr>
+ if (htmlTag && canRemoveParentTag(optionalStartTag, tag)) {
+ removeStartTag();
+ }
+ optionalStartTag = '';
+ // end-tag-followed-by-start-tag omission rules
+ if (htmlTag && canRemovePrecedingTag(optionalEndTag, tag)) {
+ removeEndTag();
+ // <colgroup> cannot be omitted if preceding </colgroup> is omitted
+ // <tbody> cannot be omitted if preceding </tbody>, </thead> or </tfoot> is omitted
+ optional = !isStartTagMandatory(optionalEndTag, tag);
+ }
+ optionalEndTag = '';
+ }
+
+ // set whitespace flags for nested tags (eg. <code> within a <pre>)
+ if (options.collapseWhitespace) {
+ if (!stackNoTrimWhitespace.length) {
+ squashTrailingWhitespace(tag);
+ }
+ if (!unary) {
+ if (!_canTrimWhitespace(tag, attrs) || stackNoTrimWhitespace.length) {
+ stackNoTrimWhitespace.push(tag);
+ }
+ if (!_canCollapseWhitespace(tag, attrs) || stackNoCollapseWhitespace.length) {
+ stackNoCollapseWhitespace.push(tag);
+ }
+ }
+ }
+
+ var openTag = '<' + tag;
+ var hasUnarySlash = unarySlash && options.keepClosingSlash;
+
+ buffer.push(openTag);
+
+ if (options.sortAttributes) {
+ options.sortAttributes(tag, attrs);
+ }
+
+ var parts = [];
+ for (var i = attrs.length, isLast = true; --i >= 0;) {
+ var normalized = normalizeAttr(attrs[i], attrs, tag, options);
+ if (normalized) {
+ parts.unshift(buildAttr(normalized, hasUnarySlash, options, isLast, uidAttr));
+ isLast = false;
+ }
+ }
+ if (parts.length > 0) {
+ buffer.push(' ');
+ buffer.push.apply(buffer, parts);
+ }
+ // start tag must never be omitted if it has any attributes
+ else if (optional && optionalStartTags(tag)) {
+ optionalStartTag = tag;
+ }
+
+ buffer.push(buffer.pop() + (hasUnarySlash ? '/' : '') + '>');
+
+ if (autoGenerated && !options.includeAutoGeneratedTags) {
+ removeStartTag();
+ optionalStartTag = '';
+ }
+ },
+ end: function(tag, attrs, autoGenerated) {
+ if (tag.toLowerCase() === 'svg') {
+ options = Object.getPrototypeOf(options);
+ }
+ tag = options.name(tag);
+
+ // check if current tag is in a whitespace stack
+ if (options.collapseWhitespace) {
+ if (stackNoTrimWhitespace.length) {
+ if (tag === stackNoTrimWhitespace[stackNoTrimWhitespace.length - 1]) {
+ stackNoTrimWhitespace.pop();
+ }
+ }
+ else {
+ squashTrailingWhitespace('/' + tag);
+ }
+ if (stackNoCollapseWhitespace.length &&
+ tag === stackNoCollapseWhitespace[stackNoCollapseWhitespace.length - 1]) {
+ stackNoCollapseWhitespace.pop();
+ }
+ }
+
+ var isElementEmpty = false;
+ if (tag === currentTag) {
+ currentTag = '';
+ isElementEmpty = !hasChars;
+ }
+
+ if (options.removeOptionalTags) {
+ // <html>, <head> or <body> may be omitted if the element is empty
+ if (isElementEmpty && topLevelTags(optionalStartTag)) {
+ removeStartTag();
+ }
+ optionalStartTag = '';
+ // </html> or </body> may be omitted if not followed by comment
+ // </head> may be omitted if not followed by space or comment
+ // </p> may be omitted if no more content in non-</a> parent
+ // except for </dt> or </thead>, end tags may be omitted if no more content in parent element
+ if (htmlTags(tag) && optionalEndTag && !trailingTags(optionalEndTag) && (optionalEndTag !== 'p' || !pInlineTags(tag))) {
+ removeEndTag();
+ }
+ optionalEndTag = optionalEndTags(tag) ? tag : '';
+ }
+
+ if (options.removeEmptyElements && isElementEmpty && canRemoveElement(tag, attrs)) {
+ // remove last "element" from buffer
+ removeStartTag();
+ optionalStartTag = '';
+ optionalEndTag = '';
+ }
+ else {
+ if (autoGenerated && !options.includeAutoGeneratedTags) {
+ optionalEndTag = '';
+ }
+ else {
+ buffer.push('</' + tag + '>');
+ }
+ charsPrevTag = '/' + tag;
+ if (!inlineTags(tag)) {
+ currentChars = '';
+ }
+ else if (isElementEmpty) {
+ currentChars += '|';
+ }
+ }
+ },
+ chars: function(text, prevTag, nextTag) {
+ prevTag = prevTag === '' ? 'comment' : prevTag;
+ nextTag = nextTag === '' ? 'comment' : nextTag;
+ if (options.decodeEntities && text && !specialContentTags(currentTag)) {
+ text = decode(text);
+ }
+ if (options.collapseWhitespace) {
+ if (!stackNoTrimWhitespace.length) {
+ if (prevTag === 'comment') {
+ var prevComment = buffer[buffer.length - 1];
+ if (prevComment.indexOf(uidIgnore) === -1) {
+ if (!prevComment) {
+ prevTag = charsPrevTag;
+ }
+ if (buffer.length > 1 && (!prevComment || !options.conservativeCollapse && / $/.test(currentChars))) {
+ var charsIndex = buffer.length - 2;
+ buffer[charsIndex] = buffer[charsIndex].replace(/\s+$/, function(trailingSpaces) {
+ text = trailingSpaces + text;
+ return '';
+ });
+ }
+ }
+ }
+ if (prevTag) {
+ if (prevTag === '/nobr' || prevTag === 'wbr') {
+ if (/^\s/.test(text)) {
+ var tagIndex = buffer.length - 1;
+ while (tagIndex > 0 && buffer[tagIndex].lastIndexOf('<' + prevTag) !== 0) {
+ tagIndex--;
+ }
+ trimTrailingWhitespace(tagIndex - 1, 'br');
+ }
+ }
+ else if (inlineTextTags(prevTag.charAt(0) === '/' ? prevTag.slice(1) : prevTag)) {
+ text = collapseWhitespace(text, options, /(?:^|\s)$/.test(currentChars));
+ }
+ }
+ if (prevTag || nextTag) {
+ text = collapseWhitespaceSmart(text, prevTag, nextTag, options);
+ }
+ else {
+ text = collapseWhitespace(text, options, true, true);
+ }
+ if (!text && /\s$/.test(currentChars) && prevTag && prevTag.charAt(0) === '/') {
+ trimTrailingWhitespace(buffer.length - 1, nextTag);
+ }
+ }
+ if (!stackNoCollapseWhitespace.length && nextTag !== 'html' && !(prevTag && nextTag)) {
+ text = collapseWhitespace(text, options, false, false, true);
+ }
+ }
+ if (options.processScripts && specialContentTags(currentTag)) {
+ text = processScript(text, options, currentAttrs);
+ }
+ if (isExecutableScript(currentTag, currentAttrs)) {
+ text = options.minifyJS(text);
+ }
+ if (isStyleSheet(currentTag, currentAttrs)) {
+ text = options.minifyCSS(text);
+ }
+ if (options.removeOptionalTags && text) {
+ // <html> may be omitted if first thing inside is not comment
+ // <body> may be omitted if first thing inside is not space, comment, <meta>, <link>, <script>, <style> or <template>
+ if (optionalStartTag === 'html' || optionalStartTag === 'body' && !/^\s/.test(text)) {
+ removeStartTag();
+ }
+ optionalStartTag = '';
+ // </html> or </body> may be omitted if not followed by comment
+ // </head>, </colgroup> or </caption> may be omitted if not followed by space or comment
+ if (compactTags(optionalEndTag) || looseTags(optionalEndTag) && !/^\s/.test(text)) {
+ removeEndTag();
+ }
+ optionalEndTag = '';
+ }
+ charsPrevTag = /^\s*$/.test(text) ? prevTag : 'comment';
+ if (options.decodeEntities && text && !specialContentTags(currentTag)) {
+ // Escape any `&` symbols that start either:
+ // 1) a legacy named character reference (i.e. one that doesn't end with `;`)
+ // 2) or any other character reference (i.e. one that does end with `;`)
+ // Note that `&` can be escaped as `&amp`, without the semi-colon.
+ // https://mathiasbynens.be/notes/ambiguous-ampersands
+ text = text.replace(/&((?:Iacute|aacute|uacute|plusmn|Otilde|otilde|agrave|Agrave|Yacute|yacute|Oslash|oslash|atilde|Atilde|brvbar|ccedil|Ccedil|Ograve|curren|divide|eacute|Eacute|ograve|Oacute|egrave|Egrave|Ugrave|frac12|frac14|frac34|ugrave|oacute|iacute|Ntilde|ntilde|Uacute|middot|igrave|Igrave|iquest|Aacute|cedil|laquo|micro|iexcl|Icirc|icirc|acirc|Ucirc|Ecirc|ocirc|Ocirc|ecirc|ucirc|Aring|aring|AElig|aelig|acute|pound|raquo|Acirc|times|THORN|szlig|thorn|COPY|auml|ordf|ordm|Uuml|macr|uuml|Auml|ouml|Ouml|para|nbsp|euml|quot|QUOT|Euml|yuml|cent|sect|copy|sup1|sup2|sup3|iuml|Iuml|ETH|shy|reg|not|yen|amp|AMP|REG|uml|eth|deg|gt|GT|LT|lt)(?!;)|(?:#?[0-9a-zA-Z]+;))/g, '&amp$1').replace(/</g, '&lt;');
+ }
+ if (uidPattern && options.collapseWhitespace && stackNoTrimWhitespace.length) {
+ text = text.replace(uidPattern, function(match, prefix, index) {
+ return ignoredCustomMarkupChunks[+index][0];
+ });
+ }
+ currentChars += text;
+ if (text) {
+ hasChars = true;
+ }
+ buffer.push(text);
+ },
+ comment: function(text, nonStandard) {
+ var prefix = nonStandard ? '<!' : '<!--';
+ var suffix = nonStandard ? '>' : '-->';
+ if (isConditionalComment(text)) {
+ text = prefix + cleanConditionalComment(text, options) + suffix;
+ }
+ else if (options.removeComments) {
+ if (isIgnoredComment(text, options)) {
+ text = '<!--' + text + '-->';
+ }
+ else {
+ text = '';
+ }
+ }
+ else {
+ text = prefix + text + suffix;
+ }
+ if (options.removeOptionalTags && text) {
+ // preceding comments suppress tag omissions
+ optionalStartTag = '';
+ optionalEndTag = '';
+ }
+ buffer.push(text);
+ },
+ doctype: function(doctype) {
+ buffer.push(options.useShortDoctype ? '<!doctype' +
+ (options.removeTagWhitespace ? '' : ' ') + 'html>' :
+ collapseWhitespaceAll(doctype));
+ },
+ customAttrAssign: options.customAttrAssign,
+ customAttrSurround: options.customAttrSurround
+ });
+
+ if (options.removeOptionalTags) {
+ // <html> may be omitted if first thing inside is not comment
+ // <head> or <body> may be omitted if empty
+ if (topLevelTags(optionalStartTag)) {
+ removeStartTag();
+ }
+ // except for </dt> or </thead>, end tags may be omitted if no more content in parent element
+ if (optionalEndTag && !trailingTags(optionalEndTag)) {
+ removeEndTag();
+ }
+ }
+ if (options.collapseWhitespace) {
+ squashTrailingWhitespace('br');
+ }
+
+ return joinResultSegments(buffer, options, uidPattern ? function(str) {
+ return str.replace(uidPattern, function(match, prefix, index, suffix) {
+ var chunk = ignoredCustomMarkupChunks[+index][0];
+ if (options.collapseWhitespace) {
+ if (prefix !== '\t') {
+ chunk = prefix + chunk;
+ }
+ if (suffix !== '\t') {
+ chunk += suffix;
+ }
+ return collapseWhitespace(chunk, {
+ preserveLineBreaks: options.preserveLineBreaks,
+ conservativeCollapse: !options.trimCustomFragments
+ }, /^[ \n\r\t\f]/.test(chunk), /[ \n\r\t\f]$/.test(chunk));
+ }
+ return chunk;
+ });
+ } : identity, uidIgnore ? function(str) {
+ return str.replace(new RegExp('<!--' + uidIgnore + '([0-9]+)-->', 'g'), function(match, index) {
+ return ignoredMarkupChunks[+index];
+ });
+ } : identity);
+}
+
+function joinResultSegments(results, options, restoreCustom, restoreIgnore) {
+ var str;
+ var maxLineLength = options.maxLineLength;
+ if (maxLineLength) {
+ var line = '', lines = [];
+ while (results.length) {
+ var len = line.length;
+ var end = results[0].indexOf('\n');
+ if (end < 0) {
+ line += restoreIgnore(restoreCustom(results.shift()));
+ }
+ else {
+ line += restoreIgnore(restoreCustom(results[0].slice(0, end)));
+ results[0] = results[0].slice(end + 1);
+ }
+ if (len > 0 && line.length > maxLineLength) {
+ lines.push(line.slice(0, len));
+ line = line.slice(len);
+ }
+ else if (end >= 0) {
+ lines.push(line);
+ line = '';
+ }
+ }
+ if (line) {
+ lines.push(line);
+ }
+ str = lines.join('\n');
+ }
+ else {
+ str = restoreIgnore(restoreCustom(results.join('')));
+ }
+ return options.collapseWhitespace ? collapseWhitespace(str, options, true, true) : str;
+}
+
+exports.minify = function(value, options) {
+ var start = Date.now();
+ options = processOptions(options || {});
+ var result = minify(value, options);
+ options.log('minified in: ' + (Date.now() - start) + 'ms');
+ return result;
+};
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-20 07:41:19 +0000