thematic-earth/joe/tess/css-parser.js

HTML-based, whole-Earth thematic maps using locally hosted data layers

/* The code in this file (c) 2013, Tab Atkins, Jr. http://www.xanthir.com/blog/b4Ju0. It is licensed under the CC0 license. */
export default function cssParser(e){var t,r='top-level',n=-1,a=new Stylesheet,o=[a],u=o[0];function CSSParserToken(e){return this}function EOFToken(){return this}CSSParserToken.prototype.finish=function(){return this},CSSParserToken.prototype.toString=function(){return this.tokenType},CSSParserToken.prototype.toJSON=function(){return this.toString()},EOFToken.prototype=new CSSParserToken,EOFToken.prototype.tokenType='EOF';for(var consume=function(r){return void 0===r&&(r=1),t=(n+=r)<e.length?e[n]:new EOFToken,!0},reprocess=function(){return n--,!0},next=function(){return e[n+1]},switchto=function(e){return void 0===e?''!==u.fillType?r=u.fillType:'STYLESHEET'==u.type?r='top-level':(console.warn(`Unknown rule-type while switching to current rule's content mode "${u}" while parsing Thematic Earth Symbol Specifiers`),r=''):r=e,!0},push=function(e){return u=e,o.push(u),!0},parseerror=function(e){var r=t.loc.start,n=`line ${r.line} column ${r.column}`;return console.warn(`Unable to properly parse Thematic Earth Symbol Specifiers beginning with ${n} - ${e}`),!0},pop=function(){var e=o.pop();return(u=o[o.length-1]).append(e),!0},discard=function(){return o.pop(),u=o[o.length-1],!0},finish=function(){for(;o.length>1;)pop()};;)switch(consume(),r){case'top-level':switch(t.tokenType){case'CDO':case'CDC':case'WHITESPACE':break;case'AT-KEYWORD':push(new AtRule(t.value))&&switchto('at-rule');break;case'{':parseerror('Attempt to open a curly-block at top-level.')&&consumeAPrimitive();break;case'EOF':return finish(),a;default:push(new StyleRule)&&switchto('selector')&&reprocess()}break;case'at-rule':switch(t.tokenType){case';':pop()&&switchto();break;case'{':''!==u.fillType?switchto(u.fillType):parseerror('Attempt to open a curly-block in a statement-type at-rule.')&&discard()&&switchto('next-block')&&reprocess();break;case'EOF':return finish(),a;default:u.appendPrelude(consumeAPrimitive())}break;case'rule':switch(t.tokenType){case'WHITESPACE':break;case'}':pop()&&switchto();break;case'AT-KEYWORD':push(new AtRule(t.value))&&switchto('at-rule');break;case'EOF':return finish(),a;default:push(new StyleRule)&&switchto('selector')&&reprocess()}break;case'selector':switch(t.tokenType){case'{':switchto('declaration');break;case'EOF':return discard()&&finish(),a;default:u.appendSelector(consumeAPrimitive())}break;case'declaration':switch(t.tokenType){case'WHITESPACE':case';':break;case'}':pop()&&switchto();break;case'AT-RULE':push(new AtRule(t.value))&&switchto('at-rule');break;case'IDENT':push(new Declaration(t.value))&&switchto('after-declaration-name');break;case'EOF':return finish(),a;default:parseerror()&&discard()&&switchto('next-declaration')}break;case'after-declaration-name':switch(t.tokenType){case'WHITESPACE':break;case':':switchto('declaration-value');break;case';':parseerror('Incomplete declaration - semicolon after property name.')&&discard()&&switchto();break;case'EOF':return discard()&&finish(),a;default:parseerror('Invalid declaration - additional token after property name')&&discard()&&switchto('next-declaration')}break;case'declaration-value':switch(t.tokenType){case'DELIM':'!'==t.value&&'IDENTIFIER'==next().tokenType&&'important'==next().value.toLowerCase()?(consume(),u.important=!0,switchto('declaration-end')):u.append(t);break;case';':pop()&&switchto();break;case'}':pop()&&pop()&&switchto();break;case'EOF':return finish(),a;default:u.append(consumeAPrimitive())}break;case'declaration-end':switch(t.tokenType){case'WHITESPACE':break;case';':pop()&&switchto();break;case'}':pop()&&pop()&&switchto();break;case'EOF':return finish(),a;default:parseerror('Invalid declaration - additional token after !important.')&&discard()&&switchto('next-declaration')}break;case'next-block':switch(t.tokenType){case'{':consumeAPrimitive()&&switchto();break;case'EOF':return finish(),a;default:consumeAPrimitive()}break;case'next-declaration':switch(t.tokenType){case';':switchto('declaration');break;case'}':switchto('declaration')&&reprocess();break;case'EOF':return finish(),a;default:consumeAPrimitive()}break;default:return void console.log('Unknown parsing mode: '+r)}function consumeAPrimitive(){switch(t.tokenType){case'(':case'[':case'{':return function consumeASimpleBlock(){for(var e={'(':')','[':']','{':'}'}[t.tokenType],r=new SimpleBlock(t.tokenType);;)switch(consume(),t.tokenType){case'EOF':case e:return r;default:r.append(consumeAPrimitive())}}();case'FUNCTION':return function consumeAFunc(){for(var e=new Func(t.value),r=new FuncArg;;)switch(consume(),t.tokenType){case'EOF':case')':return e.append(r),e;case'DELIM':','==t.value?(e.append(r),r=new FuncArg):r.append(t);break;default:r.append(consumeAPrimitive())}}();default:return t}}}function CSSParserRule(){return this}function Stylesheet(){return this.value=[],this}function AtRule(e){return this.name=e,this.prelude=[],this.value=[],e in AtRule.registry&&(this.fillType=AtRule.registry[e]),this}function StyleRule(){return this.selector=[],this.value=[],this}function Declaration(e){return this.name=e,this.value=[],this}function SimpleBlock(e){return this.name=e,this.value=[],this}function Func(e){return this.name=e,this.value=[],this}function FuncArg(){return this.value=[],this}CSSParserRule.prototype.fillType='',CSSParserRule.prototype.toString=function(e){return JSON.stringify(this.toJSON(),null,e)},CSSParserRule.prototype.append=function(e){return this.value.push(e),this},Stylesheet.prototype=new CSSParserRule,Stylesheet.prototype.type='STYLESHEET',Stylesheet.prototype.toJSON=function(){return{type:'stylesheet',value:this.value.map((function(e){return e.toJSON()}))}},AtRule.prototype=new CSSParserRule,AtRule.prototype.type='AT-RULE',AtRule.prototype.appendPrelude=function(e){return this.prelude.push(e),this},AtRule.prototype.toJSON=function(){return{type:'at',name:this.name,prelude:this.prelude.map((function(e){return e.toJSON()})),value:this.value.map((function(e){return e.toJSON()}))}},AtRule.registry={import:'',media:'rule','font-face':'declaration',page:'declaration',keyframes:'rule',namespace:'','counter-style':'declaration',supports:'rule',document:'rule','font-feature-values':'declaration',viewport:'','region-style':'rule',scale:'rule'},StyleRule.prototype=new CSSParserRule,StyleRule.prototype.type='STYLE-RULE',StyleRule.prototype.fillType='declaration',StyleRule.prototype.appendSelector=function(e){return this.selector.push(e),this},StyleRule.prototype.toJSON=function(){return{type:'selector',selector:this.selector.map((function(e){return e.toJSON()})),value:this.value.map((function(e){return e.toJSON()}))}},Declaration.prototype=new CSSParserRule,Declaration.prototype.type='DECLARATION',Declaration.prototype.toJSON=function(){return{type:'declaration',name:this.name,value:this.value.map((function(e){return e.toJSON()}))}},SimpleBlock.prototype=new CSSParserRule,SimpleBlock.prototype.type='BLOCK',SimpleBlock.prototype.toJSON=function(){return{type:'block',name:this.name,value:this.value.map((function(e){return e.toJSON()}))}},Func.prototype=new CSSParserRule,Func.prototype.type='FUNCTION',Func.prototype.toJSON=function(){return{type:'func',name:this.name,value:this.value.map((function(e){return e.toJSON()}))}},FuncArg.prototype=new CSSParserRule,FuncArg.prototype.type='FUNCTION-ARG',FuncArg.prototype.toJSON=function(){return this.value.map((function(e){return e.toJSON()}))};