thematic-earth
Version:
HTML-based, whole-Earth thematic maps using locally hosted data layers
2 lines • 17.9 kB
JavaScript
/* The code in this file (c) 2013, Tab Atkins, Jr. http://www.xanthir.com/blog/b4Ju0. It is licensed under the CC0 license. */
var between=function(e,n,t){return e>=n&&e<=t};function digit(e){return between(e,48,57)}function hexdigit(e){return digit(e)||between(e,65,70)||between(e,97,102)}function uppercaseletter(e){return between(e,65,90)}function lowercaseletter(e){return between(e,97,122)}function letter(e){return uppercaseletter(e)||lowercaseletter(e)}function nonascii(e){return e>=160}function namestartchar(e){return letter(e)||nonascii(e)||95==e}function namechar(e){return namestartchar(e)||digit(e)||45==e}function nonprintable(e){return between(e,0,8)||between(e,14,31)||between(e,127,159)}function newline(e){return 10==e||13==e}function whitespace(e){return newline(e)||9==e||32==e}function badescape(e){return newline(e)||isNaN(e)}var maximumallowedcodepoint=1114111;export default function cssTokenizer(e,n){null==n&&(n={transformFunctionWhitespace:!1,scientificNotation:!1});for(var t,o,r=-1,i=[],a='data',s=1,p=1,u=0,d={line:s,column:p},next=function(n){return void 0===n&&(n=1),e.charCodeAt(r+n)},consume=function(n){if(void 0===n&&(n=1),r+=n,newline(t=e.charCodeAt(r)))!function(e){10==e&&(s+=1),u=p,p=1}(t);else if(9==t){switch((p-1)%4){case 0:p+=4;break;case 1:p+=3;break;case 2:p+=2;break;case 3:p+=1}}else p+=n;return!0},reconsume=function(){return r-=1,newline(t)?(s-=1,p=u):p-=1,d.line=s,d.column=p,!0},eof=function(){return r>=e.length},emit=function(e){return e?e.finish():e=o.finish(),!0===n.loc&&(e.loc={},e.loc.start={line:d.line,column:d.column},d={line:s,column:p},e.loc.end=d),i.push(e),o=void 0,!0},create=function(e){return o=e,!0},parseerror=function(){return console.error(`Unable to properly tokenize Thematic Earth Symbol Specifier declarations at line ${s} (state ${a}).`),!0},catchfire=function(e){return console.error('MAJOR SPEC ERROR: '+e),!0},switchto=function(e){return a=e,!0},consumeEscape=function(){if(consume(),hexdigit(t)){for(var e=[],n=0;n<6&&hexdigit(t);n++)e.push(t),consume();var o=parseInt(e.map(String.fromCharCode).join(''),16);return o>maximumallowedcodepoint&&(o=65533),whitespace(t)||reconsume(),o}return t};;){if(r>2*e.length)return'I\'m infinite-looping!';switch(consume(),a){case'data':if(whitespace(t))for(emit(new WhitespaceToken);whitespace(next());)consume();else if(34==t)switchto('double-quote-string');else if(35==t)switchto('hash');else if(39==t)switchto('single-quote-string');else if(40==t)emit(new OpenParenToken);else if(41==t)emit(new CloseParenToken);else if(43==t)digit(next())||46==next()&&digit(next(2))?switchto('number')&&reconsume():emit(new DelimToken(t));else if(45==t)45==next(1)&&62==next(2)?consume(2)&&emit(new CDCToken):digit(next())||46==next(1)&&digit(next(2))?switchto('number')&&reconsume():switchto('ident')&&reconsume();else if(46==t)digit(next())?switchto('number')&&reconsume():emit(new DelimToken(t));else if(47==t)42==next()?consume()&&switchto('comment'):emit(new DelimToken(t));else if(58==t)emit(new ColonToken);else if(59==t)emit(new SemicolonToken);else if(60==t)33==next(1)&&45==next(2)&&45==next(3)?consume(3)&&emit(new CDOToken):emit(new DelimToken(t));else if(64==t)switchto('at-keyword');else if(91==t)emit(new OpenSquareToken);else if(92==t)badescape(next())?parseerror()&&emit(new DelimToken(t)):switchto('ident')&&reconsume();else if(93==t)emit(new CloseSquareToken);else if(123==t)emit(new OpenCurlyToken);else if(125==t)emit(new CloseCurlyToken);else if(digit(t))switchto('number')&&reconsume();else if(85==t||117==t)43==next(1)&&hexdigit(next(2))?consume()&&switchto('unicode-range'):switchto('ident')&&reconsume();else if(namestartchar(t))switchto('ident')&&reconsume();else{if(eof())return emit(new EOFToken),i;emit(new DelimToken(t))}break;case'double-quote-string':null==o&&create(new StringToken),34==t?emit()&&switchto('data'):eof()?parseerror()&&emit()&&switchto('data')&&reconsume():newline(t)?parseerror()&&emit(new BadStringToken)&&switchto('data')&&reconsume():92==t?badescape(next())?parseerror()&&emit(new BadStringToken)&&switchto('data'):newline(next())?consume():o.append(consumeEscape()):o.append(t);break;case'single-quote-string':null==o&&create(new StringToken),39==t?emit()&&switchto('data'):eof()?parseerror()&&emit()&&switchto('data'):newline(t)?parseerror()&&emit(new BadStringToken)&&switchto('data')&&reconsume():92==t?badescape(next())?parseerror()&&emit(new BadStringToken)&&switchto('data'):newline(next())?consume():o.append(consumeEscape()):o.append(t);break;case'hash':namechar(t)?create(new HashToken(t))&&switchto('hash-rest'):92==t?badescape(next())?parseerror()&&emit(new DelimToken(35))&&switchto('data')&&reconsume():create(new HashToken(consumeEscape()))&&switchto('hash-rest'):emit(new DelimToken(35))&&switchto('data')&&reconsume();break;case'hash-rest':case'at-keyword-rest':case'dimension':namechar(t)?o.append(t):92==t?badescape(next())?parseerror()&&emit()&&switchto('data')&&reconsume():o.append(consumeEscape()):emit()&&switchto('data')&&reconsume();break;case'comment':42==t?47==next()&&consume()&&switchto('data'):eof()&&parseerror()&&switchto('data')&&reconsume();break;case'at-keyword':45==t?namestartchar(next())?create(new AtKeywordToken(45))&&switchto('at-keyword-rest'):92!=next(1)||badescape(next(2))?parseerror()&&emit(new DelimToken(64))&&switchto('data')&&reconsume():create(new AtKeywordtoken(45))&&switchto('at-keyword-rest'):namestartchar(t)?create(new AtKeywordToken(t))&&switchto('at-keyword-rest'):92==t?badescape(next())?parseerror()&&emit(new DelimToken(35))&&switchto('data')&&reconsume():create(new AtKeywordToken(consumeEscape()))&&switchto('at-keyword-rest'):emit(new DelimToken(64))&&switchto('data')&&reconsume();break;case'ident':45==t?namestartchar(next())?create(new IdentifierToken(t))&&switchto('ident-rest'):92!=next(1)||badescape(next(2))?emit(new DelimToken(45))&&switchto('data'):create(new IdentifierToken(t))&&switchto('ident-rest'):namestartchar(t)?create(new IdentifierToken(t))&&switchto('ident-rest'):92==t?badescape(next())?parseerror()&&switchto('data')&&reconsume():create(new IdentifierToken(consumeEscape()))&&switchto('ident-rest'):catchfire('Hit the generic \'else\' clause in ident state.')&&switchto('data')&&reconsume();break;case'ident-rest':namechar(t)?o.append(t):92==t?badescape(next())?parseerror()&&emit()&&switchto('data')&&reconsume():o.append(consumeEscape()):40==t?o.ASCIImatch('url')?switchto('url'):emit(new FunctionToken(o))&&switchto('data'):whitespace(t)&&n.transformFunctionWhitespace?switchto('transform-function-whitespace')&&reconsume():emit()&&switchto('data')&&reconsume();break;case'transform-function-whitespace':whitespace(next())||(40==t?emit(new FunctionToken(o))&&switchto('data'):emit()&&switchto('data')&&reconsume());break;case'number':create(new NumberToken),45==t?digit(next())?consume()&&o.append([45,t])&&switchto('number-rest'):46==next(1)&&digit(next(2))?consume(2)&&o.append([45,46,t])&&switchto('number-fraction'):switchto('data')&&reconsume():43==t?digit(next())?consume()&&o.append([43,t])&&switchto('number-rest'):46==next(1)&&digit(next(2))?consume(2)&&o.append([43,46,t])&&switchto('number-fraction'):switchto('data')&&reconsume():digit(t)?o.append(t)&&switchto('number-rest'):46==t&&digit(next())?consume()&&o.append([46,t])&&switchto('number-fraction'):switchto('data')&&reconsume();break;case'number-rest':digit(t)?o.append(t):46==t?digit(next())?consume()&&o.append([46,t])&&switchto('number-fraction'):emit()&&switchto('data')&&reconsume():37==t?emit(new PercentageToken(o))&&switchto('data'):69==t||101==t?digit(next())?consume()&&o.append([37,t])&&switchto('sci-notation'):43!=next(1)&&45!=next(1)||!digit(next(2))?create(new DimensionToken(o,t))&&switchto('dimension'):o.append([37,next(1),next(2)])&&consume(2)&&switchto('sci-notation'):45==t?namestartchar(next())?consume()&&create(new DimensionToken(o,[45,t]))&&switchto('dimension'):92==next(1)&&badescape(next(2))?parseerror()&&emit()&&switchto('data')&&reconsume():92==next(1)?consume()&&create(new DimensionToken(o,[45,consumeEscape()]))&&switchto('dimension'):emit()&&switchto('data')&&reconsume():namestartchar(t)?create(new DimensionToken(o,t))&&switchto('dimension'):92==t?badescape(next)?parseerror()&&emit()&&switchto('data')&&reconsume():create(new DimensionToken(o,consumeEscape))&&switchto('dimension'):emit()&&switchto('data')&&reconsume();break;case'number-fraction':o.type='number',digit(t)?o.append(t):37==t?emit(new PercentageToken(o))&&switchto('data'):69==t||101==t?digit(next())?consume()&&o.append([101,t])&&switchto('sci-notation'):43!=next(1)&&45!=next(1)||!digit(next(2))?create(new DimensionToken(o,t))&&switchto('dimension'):o.append([101,next(1),next(2)])&&consume(2)&&switchto('sci-notation'):45==t?namestartchar(next())?consume()&&create(new DimensionToken(o,[45,t]))&&switchto('dimension'):92==next(1)&&badescape(next(2))?parseerror()&&emit()&&switchto('data')&&reconsume():92==next(1)?consume()&&create(new DimensionToken(o,[45,consumeEscape()]))&&switchto('dimension'):emit()&&switchto('data')&&reconsume():namestartchar(t)?create(new DimensionToken(o,t))&&switchto('dimension'):92==t?badescape(next)?parseerror()&&emit()&&switchto('data')&&reconsume():create(new DimensionToken(o,consumeEscape()))&&switchto('dimension'):emit()&&switchto('data')&&reconsume();break;case'sci-notation':o.type='number',digit(t)?o.append(t):emit()&&switchto('data')&&reconsume();break;case'url':eof()?parseerror()&&emit(new BadURLToken)&&switchto('data'):34==t?switchto('url-double-quote'):39==t?switchto('url-single-quote'):41==t?emit(new URLToken)&&switchto('data'):whitespace(t)||switchto('url-unquoted')&&reconsume();break;case'url-double-quote':o instanceof URLToken||create(new URLToken),eof()?parseerror()&&emit(new BadURLToken)&&switchto('data'):34==t?switchto('url-end'):newline(t)?parseerror()&&switchto('bad-url'):92==t?newline(next())?consume():badescape(next())?parseerror()&&emit(new BadURLToken)&&switchto('data')&&reconsume():o.append(consumeEscape()):o.append(t);break;case'url-single-quote':o instanceof URLToken||create(new URLToken),eof()?parseerror()&&emit(new BadURLToken)&&switchto('data'):39==t?switchto('url-end'):newline(t)?parseerror()&&switchto('bad-url'):92==t?newline(next())?consume():badescape(next())?parseerror()&&emit(new BadURLToken)&&switchto('data')&&reconsume():o.append(consumeEscape()):o.append(t);break;case'url-end':eof()?parseerror()&&emit(new BadURLToken)&&switchto('data'):whitespace(t)||(41==t?emit()&&switchto('data'):parseerror()&&switchto('bad-url')&&reconsume());break;case'url-unquoted':o instanceof URLToken||create(new URLToken),eof()?parseerror()&&emit(new BadURLToken)&&switchto('data'):whitespace(t)?switchto('url-end'):41==t?emit()&&switchto('data'):34==t||39==t||40==t||nonprintable(t)?parseerror()&&switchto('bad-url'):92==t?badescape(next())?parseerror()&&switchto('bad-url'):o.append(consumeEscape()):o.append(t);break;case'bad-url':eof()?parseerror()&&emit(new BadURLToken)&&switchto('data'):41==t?emit(new BadURLToken)&&switchto('data'):92==t&&(badescape(next())||consumeEscape());break;case'unicode-range':for(var k=[t],c=[t],T=1;T<6&&hexdigit(next());T++)consume(),k.push(t),c.push(t);if(63==next()){for(;T<6&&63==next();T++)consume(),k.push('0'.charCodeAt(0)),c.push('f'.charCodeAt(0));emit(new UnicodeRangeToken(k,c))&&switchto('data')}else if(45==next(1)&&hexdigit(next(2))){consume(),consume(),c=[t];for(T=1;T<6&&hexdigit(next());T++)consume(),c.push(t);emit(new UnicodeRangeToken(k,c))&&switchto('data')}else emit(new UnicodeRangeToken(k))&&switchto('data');break;default:catchfire('Unknown state \''+a+'\'')}}}function stringFromCodeArray(e){return String.fromCharCode.apply(null,e.filter((function(e){return e})))}function CSSParserToken(e){return this}function BadStringToken(){return this}function BadURLToken(){return this}function WhitespaceToken(){return this}function CDOToken(){return this}function CDCToken(){return this}function ColonToken(){return this}function SemicolonToken(){return this}function OpenCurlyToken(){return this}function CloseCurlyToken(){return this}function OpenSquareToken(){return this}function CloseSquareToken(){return this}function OpenParenToken(){return this}function CloseParenToken(){return this}function EOFToken(){return this}function DelimToken(e){return this.value=String.fromCharCode(e),this}function StringValuedToken(){return this}function IdentifierToken(e){this.value=[],this.append(e)}function FunctionToken(e){this.value=e.finish().value}function AtKeywordToken(e){this.value=[],this.append(e)}function HashToken(e){this.value=[],this.append(e)}function StringToken(e){this.value=[],this.append(e)}function URLToken(e){this.value=[],this.append(e)}function NumberToken(e){this.value=[],this.append(e),this.type='integer'}function PercentageToken(e){e.finish(),this.value=e.value,this.repr=e.repr}function DimensionToken(e,n){e.finish(),this.num=e.value,this.unit=[],this.repr=e.repr,this.append(n)}function UnicodeRangeToken(e,n){return e=parseInt(stringFromCodeArray(e),16),n=void 0===n?e+1:parseInt(stringFromCodeArray(n),16),e>maximumallowedcodepoint&&(n=e),n<e&&(n=e),n>maximumallowedcodepoint&&(n=maximumallowedcodepoint),this.start=e,this.end=n,this}CSSParserToken.prototype.finish=function(){return this},CSSParserToken.prototype.toString=function(){return this.tokenType},CSSParserToken.prototype.toJSON=function(){return this.toString()},BadStringToken.prototype=new CSSParserToken,BadStringToken.prototype.tokenType='BADSTRING',BadURLToken.prototype=new CSSParserToken,BadURLToken.prototype.tokenType='BADURL',WhitespaceToken.prototype=new CSSParserToken,WhitespaceToken.prototype.tokenType='WHITESPACE',WhitespaceToken.prototype.toString=function(){return'WS'},CDOToken.prototype=new CSSParserToken,CDOToken.prototype.tokenType='CDO',CDCToken.prototype=new CSSParserToken,CDCToken.prototype.tokenType='CDC',ColonToken.prototype=new CSSParserToken,ColonToken.prototype.tokenType=':',SemicolonToken.prototype=new CSSParserToken,SemicolonToken.prototype.tokenType=';',OpenCurlyToken.prototype=new CSSParserToken,OpenCurlyToken.prototype.tokenType='{',CloseCurlyToken.prototype=new CSSParserToken,CloseCurlyToken.prototype.tokenType='}',OpenSquareToken.prototype=new CSSParserToken,OpenSquareToken.prototype.tokenType='[',CloseSquareToken.prototype=new CSSParserToken,CloseSquareToken.prototype.tokenType=']',OpenParenToken.prototype=new CSSParserToken,OpenParenToken.prototype.tokenType='(',CloseParenToken.prototype=new CSSParserToken,CloseParenToken.prototype.tokenType=')',EOFToken.prototype=new CSSParserToken,EOFToken.prototype.tokenType='EOF',DelimToken.prototype=new CSSParserToken,DelimToken.prototype.tokenType='DELIM',DelimToken.prototype.toString=function(){return'DELIM('+this.value+')'},StringValuedToken.prototype=new CSSParserToken,StringValuedToken.prototype.append=function(e){if(e instanceof Array)for(var n=0;n<e.length;n++)this.value.push(e[n]);else this.value.push(e);return!0},StringValuedToken.prototype.finish=function(){return this.value=this.valueAsString(),this},StringValuedToken.prototype.ASCIImatch=function(e){return this.valueAsString().toLowerCase()==e.toLowerCase()},StringValuedToken.prototype.valueAsString=function(){return'string'==typeof this.value?this.value:stringFromCodeArray(this.value)},StringValuedToken.prototype.valueAsCodes=function(){if('string'==typeof this.value){for(var e=[],n=0;n<this.value.length;n++)e.push(this.value.charCodeAt(n));return e}return this.value.filter((function(e){return e}))},IdentifierToken.prototype=new StringValuedToken,IdentifierToken.prototype.tokenType='IDENT',IdentifierToken.prototype.toString=function(){return'IDENT('+this.value+')'},FunctionToken.prototype=new StringValuedToken,FunctionToken.prototype.tokenType='FUNCTION',FunctionToken.prototype.toString=function(){return'FUNCTION('+this.value+')'},AtKeywordToken.prototype=new StringValuedToken,AtKeywordToken.prototype.tokenType='AT-KEYWORD',AtKeywordToken.prototype.toString=function(){return'AT('+this.value+')'},HashToken.prototype=new StringValuedToken,HashToken.prototype.tokenType='HASH',HashToken.prototype.toString=function(){return'HASH('+this.value+')'},StringToken.prototype=new StringValuedToken,StringToken.prototype.tokenType='STRING',StringToken.prototype.toString=function(){return'"'+this.value+'"'},URLToken.prototype=new StringValuedToken,URLToken.prototype.tokenType='URL',URLToken.prototype.toString=function(){return'URL('+this.value+')'},NumberToken.prototype=new StringValuedToken,NumberToken.prototype.tokenType='NUMBER',NumberToken.prototype.toString=function(){return'integer'==this.type?'INT('+this.value+')':'NUMBER('+this.value+')'},NumberToken.prototype.finish=function(){return this.repr=this.valueAsString(),this.value=1*this.repr,Math.abs(this.value)%1!=0&&(this.type='number'),this},PercentageToken.prototype=new CSSParserToken,PercentageToken.prototype.tokenType='PERCENTAGE',PercentageToken.prototype.toString=function(){return'PERCENTAGE('+this.value+')'},DimensionToken.prototype=new CSSParserToken,DimensionToken.prototype.tokenType='DIMENSION',DimensionToken.prototype.toString=function(){return'DIM('+this.num+','+this.unit+')'},DimensionToken.prototype.append=function(e){if(e instanceof Array)for(var n=0;n<e.length;n++)this.unit.push(e[n]);else this.unit.push(e);return!0},DimensionToken.prototype.finish=function(){return this.unit=stringFromCodeArray(this.unit),this.repr+=this.unit,this},UnicodeRangeToken.prototype=new CSSParserToken,UnicodeRangeToken.prototype.tokenType='UNICODE-RANGE',UnicodeRangeToken.prototype.toString=function(){return this.start+1==this.end?'UNICODE-RANGE('+this.start.toString(16).toUpperCase()+')':this.start<this.end?'UNICODE-RANGE('+this.start.toString(16).toUpperCase()+'-'+this.end.toString(16).toUpperCase()+')':'UNICODE-RANGE()'},UnicodeRangeToken.prototype.contains=function(e){return e>=this.start&&e<this.end};