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From 34d3f46d7240bebe608f453dfb575f545452469f Mon Sep 17 00:00:00 2001 From: alexlamsl Date: Mon, 29 Feb 2016 16:22:44 +0800 Subject: [PATCH] fixes #503 add more tests to clarify whitespace handling rules --- dist/htmlminifier.js | 12 ++++++---- dist/htmlminifier.min.js | 2 +- src/htmlminifier.js | 12 ++++++---- tests/minifier.js | 51 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 68 insertions(+), 9 deletions(-) diff --git a/dist/htmlminifier.js b/dist/htmlminifier.js index 42590ca..cb24d64 100644 --- a/dist/htmlminifier.js +++ b/dist/htmlminifier.js @@ -925,6 +925,7 @@ // with the following deviations: // - retain if followed by

, <style> or <template> // <colgroup> may be omitted if first thing inside is <col> // <tbody> may be omitted if first thing inside is <tr> - if (canRemoveParentTag(optionalStartTag, tag)) { + if (htmlTag && canRemoveParentTag(optionalStartTag, tag)) { removeStartTag(); } optionalStartTag = ''; // end-tag-followed-by-start-tag omission rules - if (canRemovePrecedingTag(optionalEndTag, tag)) { + 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 @@ -1461,7 +1465,7 @@ // </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 (optionalEndTag && optionalEndTag !== 'dt' && optionalEndTag !== 'thead' && (optionalEndTag !== 'p' || !pInlineTags(tag))) { + if (htmlTags(tag) && optionalEndTag && !trailingTags(optionalEndTag) && (optionalEndTag !== 'p' || !pInlineTags(tag))) { removeEndTag(); } optionalEndTag = optionalEndTags(tag) ? tag : ''; @@ -1584,7 +1588,7 @@ removeStartTag(); } // except for </dt> or </thead>, end tags may be omitted if no more content in parent element - if (optionalEndTag && optionalEndTag !== 'dt' && optionalEndTag !== 'thead') { + if (optionalEndTag && !trailingTags(optionalEndTag)) { removeEndTag(); } } diff --git a/dist/htmlminifier.min.js b/dist/htmlminifier.min.js index 2393e4e..7617653 100644 --- a/dist/htmlminifier.min.js +++ b/dist/htmlminifier.min.js @@ -3,4 +3,4 @@ * Copyright 2010-2016 Juriy "kangax" Zaytsev * Licensed under the MIT license */ -!function(a){"use strict";function b(a){var b,c=new RegExp("[\\w:\\.-]+(?:\\s*(?:"+d(a)+")\\s*(?:\"[^\"]*\"+?|'[^']*'+?|[^>\\s\"']+?))?");if(a.customAttrSurround){for(var 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Try replacing it with styling.")},h.prototype.testAttribute=function(a,b,c){d(b)?this.log.push('Found <span class="event-attribute">event attribute</span> (<strong>'+b+"</strong>) on <strong><code><"+a+"></code></strong> element."):f(a,b)?this.log.push('Found <span class="deprecated-attribute">deprecated</span> <strong>'+b+"</strong> attribute on <strong><code><"+a+"></code></strong> element."):e(b)?this.log.push('Found <span class="style-attribute">style attribute</span> on <strong><code><'+a+"></code></strong> element."):g(b,c)&&this.log.push('Found <span class="inaccessible-attribute">inaccessible attribute</span> (on <strong><code><'+a+"></code></strong> element).")},h.prototype.testChars=function(a){this._lastElement="",/( \s*){2,}/.test(a)&&this.log.push("Found repeating <strong><code>&nbsp;</code></strong> sequence. Try replacing it with styling.")},h.prototype.test=function(a,b,c){this.testElement(a),this.testAttribute(a,b,c)},h.prototype.populate=function(a){if(this._isElementRepeated&&this._reportRepeatingElement(),this.log.length)if(a)a.innerHTML="<ol><li>"+this.log.join("<li>")+"</ol>";else{var b=" - "+this.log.join("\n - ").replace(/(<([^>]+)>)/gi,"").replace(/</g,"<").replace(/>/g,">");console.log(b)}},a.HTMLLint=h}("undefined"==typeof exports?this:exports); \ No newline at end of file diff --git a/src/htmlminifier.js b/src/htmlminifier.js index 7b131fc..1602371 100644 --- a/src/htmlminifier.js +++ b/src/htmlminifier.js @@ -387,6 +387,7 @@ // with the following deviations: // - retain <body> if followed by <noscript> // - </rb>, </rt>, </rtc>, </rp> & </tfoot> follow http://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'); @@ -402,6 +403,8 @@ 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,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) { @@ -812,17 +815,18 @@ 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 (canRemoveParentTag(optionalStartTag, tag)) { + if (htmlTag && canRemoveParentTag(optionalStartTag, tag)) { removeStartTag(); } optionalStartTag = ''; // end-tag-followed-by-start-tag omission rules - if (canRemovePrecedingTag(optionalEndTag, tag)) { + 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 @@ -923,7 +927,7 @@ // </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 (optionalEndTag && optionalEndTag !== 'dt' && optionalEndTag !== 'thead' && (optionalEndTag !== 'p' || !pInlineTags(tag))) { + if (htmlTags(tag) && optionalEndTag && !trailingTags(optionalEndTag) && (optionalEndTag !== 'p' || !pInlineTags(tag))) { removeEndTag(); } optionalEndTag = optionalEndTags(tag) ? tag : ''; @@ -1046,7 +1050,7 @@ removeStartTag(); } // except for </dt> or </thead>, end tags may be omitted if no more content in parent element - if (optionalEndTag && optionalEndTag !== 'dt' && optionalEndTag !== 'thead') { + if (optionalEndTag && !trailingTags(optionalEndTag)) { removeEndTag(); } } diff --git a/tests/minifier.js b/tests/minifier.js index 852b766..c15365b 100644 --- a/tests/minifier.js +++ b/tests/minifier.js @@ -840,6 +840,54 @@ equal(minify(input, { removeOptionalTags: true }), output); equal(minify(input, { removeOptionalTags: true, removeEmptyElements: true }), output); + input = ' <html></html>'; + output = ' '; + equal(minify(input, { removeOptionalTags: true }), output); + output = ''; + equal(minify(input, { collapseWhitespace: true, removeOptionalTags: true }), output); + + input = '<html> </html>'; + output = ' '; + equal(minify(input, { removeOptionalTags: true }), output); + output = ''; + equal(minify(input, { collapseWhitespace: true, removeOptionalTags: true }), output); + + input = '<html></html> '; + output = ' '; + equal(minify(input, { removeOptionalTags: true }), output); + output = ''; + equal(minify(input, { collapseWhitespace: true, removeOptionalTags: true }), output); + + input = ' <html><body></body></html>'; + output = ' '; + equal(minify(input, { removeOptionalTags: true }), output); + output = ''; + equal(minify(input, { collapseWhitespace: true, removeOptionalTags: true }), output); + + input = '<html> <body></body></html>'; + output = ' '; + equal(minify(input, { removeOptionalTags: true }), output); + output = ''; + equal(minify(input, { collapseWhitespace: true, removeOptionalTags: true }), output); + + input = '<html><body> </body></html>'; + output = '<body> '; + equal(minify(input, { removeOptionalTags: true }), output); + output = ''; + equal(minify(input, { collapseWhitespace: true, removeOptionalTags: true }), output); + + input = '<html><body></body> </html>'; + output = ' '; + equal(minify(input, { removeOptionalTags: true }), output); + output = ''; + equal(minify(input, { collapseWhitespace: true, removeOptionalTags: true }), output); + + input = '<html><body></body></html> '; + output = ' '; + equal(minify(input, { removeOptionalTags: true }), output); + output = ''; + equal(minify(input, { collapseWhitespace: true, removeOptionalTags: true }), output); + input = '<html><head><title>hello</title></head><body><p>foo<span>bar</span></p></body></html>'; equal(minify(input), input); output = '<title>hello</title><p>foo<span>bar</span>'; @@ -862,6 +910,9 @@ input = '<!DOCTYPE html><html><head><title>Blah</title></head><body><noscript><p>This is some text in a noscript</p><details>Followed by some details</details>

'; output = 'Blah'; equal(minify(input, { removeOptionalTags: true }), output); + + input = '

Configure

'; + equal(minify(input, { removeOptionalTags: true }), input); }); test('removing optional tags in tables', function() { -- 2.34.1