12 lines
168 KiB
JavaScript
12 lines
168 KiB
JavaScript
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syntax: `+o.syntax+`
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||
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`+t+`
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||
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--`+new Array((r||t.length)+1).join("-")+"^"})}var Pl=9,Il=10,Dl=12,Ol=13,Nl=32,Wt=class{constructor(t){this.str=t,this.pos=0}charCodeAt(t){return t<this.str.length?this.str.charCodeAt(t):0}charCode(){return this.charCodeAt(this.pos)}nextCharCode(){return this.charCodeAt(this.pos+1)}nextNonWsCode(t){return this.charCodeAt(this.findWsEnd(t))}findWsEnd(t){for(;t<this.str.length;t++){let r=this.str.charCodeAt(t);if(r!==Ol&&r!==Il&&r!==Dl&&r!==Nl&&r!==Pl)break}return t}substringToPos(t){return this.str.substring(this.pos,this.pos=t)}eat(t){this.charCode()!==t&&this.error("Expect `"+String.fromCharCode(t)+"`"),this.pos++}peek(){return this.pos<this.str.length?this.str.charAt(this.pos++):""}error(t){throw new jt(t,this.str,this.pos)}};var zl=9,Ml=10,Rl=12,Fl=13,Bl=32,Ki=33,Mr=35,Ui=38,Ht=39,Qi=40,_l=41,Xi=42,Rr=43,Fr=44,ji=45,Br=60,$i=62,zr=63,ql=64,Kt=91,_r=93,Yt=123,Wi=124,Hi=125,Yi=8734,ht=new Uint8Array(128).map((e,t)=>/[a-zA-Z0-9\-]/.test(String.fromCharCode(t))?1:0),Gi={" ":1,"&&":2,"||":3,"|":4};function Gt(e){return e.substringToPos(e.findWsEnd(e.pos))}function Ve(e){let t=e.pos;for(;t<e.str.length;t++){let r=e.str.charCodeAt(t);if(r>=128||ht[r]===0)break}return e.pos===t&&e.error("Expect a keyword"),e.substringToPos(t)}function Vt(e){let t=e.pos;for(;t<e.str.length;t++){let r=e.str.charCodeAt(t);if(r<48||r>57)break}return e.pos===t&&e.error("Expect a number"),e.substringToPos(t)}function Ul(e){let t=e.str.indexOf("'",e.pos+1);return t===-1&&(e.pos=e.str.length,e.error("Expect an apostrophe")),e.substringToPos(t+1)}function Vi(e){let t=null,r=null;return e.eat(Yt),t=Vt(e),e.charCode()===Fr?(e.pos++,e.charCode()!==Hi&&(r=Vt(e))):r=t,e.eat(Hi),{min:Number(t),max:r?Number(r):0}}function jl(e){let t=null,r=!1;switch(e.charCode()){case Xi:e.pos++,t={min:0,max:0};break;case Rr:e.pos++,t={min:1,max:0};break;case zr:e.pos++,t={min:0,max:1};break;case Mr:e.pos++,r=!0,e.charCode()===Yt?t=Vi(e):e.charCode()===zr?(e.pos++,t={min:0,max:0}):t={min:1,max:0};break;case Yt:t=Vi(e);break;default:return null}return{type:"Multiplier",comma:r,min:t.min,max:t.max,term:null}}function Ke(e,t){let r=jl(e);return r!==null?(r.term=t,e.charCode()===Mr&&e.charCodeAt(e.pos-1)===Rr?Ke(e,r):r):t}function Nr(e){let t=e.peek();return t===""?null:{type:"Token",value:t}}function Wl(e){let t;return e.eat(Br),e.eat(Ht),t=Ve(e),e.eat(Ht),e.eat($i),Ke(e,{type:"Property",name:t})}function Hl(e){let t=null,r=null,n=1;return e.eat(Kt),e.charCode()===ji&&(e.peek(),n=-1),n==-1&&e.charCode()===Yi?e.peek():(t=n*Number(Vt(e)),ht[e.charCode()]!==0&&(t+=Ve(e))),Gt(e),e.eat(Fr),Gt(e),e.charCode()===Yi?e.peek():(n=1,e.charCode()===ji&&(e.peek(),n=-1),r=n*Number(Vt(e)),ht[e.charCode()]!==0&&(r+=Ve(e))),e.eat(_r),{type:"Range",min:t,max:r}}function Yl(e){let t,r=null;return e.eat(Br),t=Ve(e),e.charCode()===Qi&&e.nextCharCode()===_l&&(e.pos+=2,t+="()"),e.charCodeAt(e.findWsEnd(e.pos))===Kt&&(Gt(e),r=Hl(e)),e.eat($i),Ke(e,{type:"Type",name:t,opts:r})}function Gl(e){let t=Ve(e);return e.charCode()===Qi?(e.pos++,{type:"Function",name:t}):Ke(e,{type:"Keyword",name:t})}function Vl(e,t){function r(o,i){return{type:"Group",terms:o,combinator:i,disallowEmpty:!1,explicit:!1}}let n;for(t=Object.keys(t).sort((o,i)=>Gi[o]-Gi[i]);t.length>0;){n=t.shift();let o=0,i=0;for(;o<e.length;o++){let s=e[o];s.type==="Combinator"&&(s.value===n?(i===-1&&(i=o-1),e.splice(o,1),o--):(i!==-1&&o-i>1&&(e.splice(i,o-i,r(e.slice(i,o),n)),o=i+1),i=-1))}i!==-1&&t.length&&e.splice(i,o-i,r(e.slice(i,o),n))}return n}function Zi(e){let t=[],r={},n,o=null,i=e.pos;for(;n=Ql(e);)n.type!=="Spaces"&&(n.type==="Combinator"?((o===null||o.type==="Combinator")&&(e.pos=i,e.error("Unexpected combinator")),r[n.value]=!0):o!==null&&o.type!=="Combinator"&&(r[" "]=!0,t.push({type:"Combinator",value:" "})),t.push(n),o=n,i=e.pos);return o!==null&&o.type==="Combinator"&&(e.pos-=i,e.error("Unexpected combinator")),{type:"Group",terms:t,combinator:Vl(t,r)||" ",disallowEmpty:!1,explicit:!1}}function Kl(e){let t;return e.eat(Kt),t=Zi(e),e.eat(_r),t.explicit=!0,e.charCode()===Ki&&(e.pos++,t.disallowEmpty=!0),t}function Ql(e){let t=e
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