4 lines
144 KiB
JavaScript
4 lines
144 KiB
JavaScript
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"use strict";var e=require("obsidian"),t=require("@codemirror/view"),n=require("@codemirror/state"),r=require("@codemirror/language");class i{static get version(){return"1.4.0"}static toString(){return"JavaScript Expression Parser (JSEP) v"+i.version}static addUnaryOp(e){return i.max_unop_len=Math.max(e.length,i.max_unop_len),i.unary_ops[e]=1,i}static addBinaryOp(e,t,n){return i.max_binop_len=Math.max(e.length,i.max_binop_len),i.binary_ops[e]=t,n?i.right_associative.add(e):i.right_associative.delete(e),i}static addIdentifierChar(e){return i.additional_identifier_chars.add(e),i}static addLiteral(e,t){return i.literals[e]=t,i}static removeUnaryOp(e){return delete i.unary_ops[e],e.length===i.max_unop_len&&(i.max_unop_len=i.getMaxKeyLen(i.unary_ops)),i}static removeAllUnaryOps(){return i.unary_ops={},i.max_unop_len=0,i}static removeIdentifierChar(e){return i.additional_identifier_chars.delete(e),i}static removeBinaryOp(e){return delete i.binary_ops[e],e.length===i.max_binop_len&&(i.max_binop_len=i.getMaxKeyLen(i.binary_ops)),i.right_associative.delete(e),i}static removeAllBinaryOps(){return i.binary_ops={},i.max_binop_len=0,i}static removeLiteral(e){return delete i.literals[e],i}static removeAllLiterals(){return i.literals={},i}get char(){return this.expr.charAt(this.index)}get code(){return this.expr.charCodeAt(this.index)}constructor(e){this.expr=e,this.index=0}static parse(e){return new i(e).parse()}static getMaxKeyLen(e){return Math.max(0,...Object.keys(e).map(e=>e.length))}static isDecimalDigit(e){return e>=48&&e<=57}static binaryPrecedence(e){return i.binary_ops[e]||0}static isIdentifierStart(e){return e>=65&&e<=90||e>=97&&e<=122||e>=128&&!i.binary_ops[String.fromCharCode(e)]||i.additional_identifier_chars.has(String.fromCharCode(e))}static isIdentifierPart(e){return i.isIdentifierStart(e)||i.isDecimalDigit(e)}throwError(e){const t=new Error(e+" at character "+this.index);throw t.index=this.index,t.description=e,t}runHook(e,t){if(i.hooks[e]){const n={context:this,node:t};return i.hooks.run(e,n),n.node}return t}searchHook(e){if(i.hooks[e]){const t={context:this};return i.hooks[e].find(function(e){return e.call(t.context,t),t.node}),t.node}}gobbleSpaces(){let e=this.code;for(;e===i.SPACE_CODE||e===i.TAB_CODE||e===i.LF_CODE||e===i.CR_CODE;)e=this.expr.charCodeAt(++this.index);this.runHook("gobble-spaces")}parse(){this.runHook("before-all");const e=this.gobbleExpressions(),t=1===e.length?e[0]:{type:i.COMPOUND,body:e};return this.runHook("after-all",t)}gobbleExpressions(e){let t,n,r=[];for(;this.index<this.expr.length;)if(t=this.code,t===i.SEMCOL_CODE||t===i.COMMA_CODE)this.index++;else if(n=this.gobbleExpression())r.push(n);else if(this.index<this.expr.length){if(t===e)break;this.throwError('Unexpected "'+this.char+'"')}return r}gobbleExpression(){const e=this.searchHook("gobble-expression")||this.gobbleBinaryExpression();return this.gobbleSpaces(),this.runHook("after-expression",e)}gobbleBinaryOp(){this.gobbleSpaces();let e=this.expr.substr(this.index,i.max_binop_len),t=e.length;for(;t>0;){if(i.binary_ops.hasOwnProperty(e)&&(!i.isIdentifierStart(this.code)||this.index+e.length<this.expr.length&&!i.isIdentifierPart(this.expr.charCodeAt(this.index+e.length))))return this.index+=t,e;e=e.substr(0,--t)}return!1}gobbleBinaryExpression(){let e,t,n,r,o,s,a,c,l;if(s=this.gobbleToken(),!s)return s;if(t=this.gobbleBinaryOp(),!t)return s;for(o={value:t,prec:i.binaryPrecedence(t),right_a:i.right_associative.has(t)},a=this.gobbleToken(),a||this.throwError("Expected expression after "+t),r=[s,o,a];t=this.gobbleBinaryOp();){if(n=i.binaryPrecedence(t),0===n){this.index-=t.length;break}o={value:t,prec:n,right_a:i.right_associative.has(t)},l=t;const c=e=>o.right_a&&e.right_a?n>e.prec:n<=e.prec;for(;r.length>2&&c(r[r.length-2]);)a=r.pop(),t=r.pop().value,s=r.pop(),e={type:i.BINARY_EXP,operator:t,left:s,right:a},r.push(e);e=this.gobbleToken(),e||this.throwError("Expected expression after "+l),r.push(o,e)}for(c=r.length-1,e=r[c];c>1;)e={type:i.BINARY_EXP,operator:r[c-1].value,left:r[c-2],right:e},c-=2;return e}gobbleToken(){let e,t,n,r;if(thi
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/* nosourcemap */
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