apds / lib / frontmatter.js

/* esm.sh - esbuild bundle(@jsr/std__front-matter@1.0.5) es2022 production */
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r=+e[1],n=+e[2]-1,i=+e[3];if(!e[4])return new Date(Date.UTC(r,n,i));let s=+e[4],o=+e[5],l=+e[6],a=0;if(e[7]){let h=e[7].slice(0,3);for(;h.length<3;)h+="0";a=+h}let c=null;if(e[9]&&e[10]){let h=+e[10],x=+(e[11]||0);c=(h*60+x)*6e4,e[9]==="-"&&(c=-c)}let f=new Date(Date.UTC(r,n,i,s,o,l,a));return c&&f.setTime(f.getTime()-c),f}function hr(t){return t.toISOString()}var qt={tag:"tag:yaml.org,2002:timestamp",construct:lr,predicate(t){return t instanceof Date},kind:"scalar",represent:hr,resolve:ar};var Wt={tag:"tag:yaml.org,2002:js/undefined",kind:"scalar",resolve(){return!0},construct(){},predicate(t){return typeof t>"u"},represent(){return""}};function ur(t,e){let r={fallback:new Map,mapping:new Map,scalar:new Map,sequence:new Map},n=r.fallback;for(let i of[...t,...e])r[i.kind].set(i.tag,i),n.set(i.tag,i);return r}function I({explicitTypes:t=[],implicitTypes:e=[],include:r}){r&&(e.push(...r.implicitTypes),t.push(...r.explicitTypes));let 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`.repeat(n?1+o:o),n=!0,i=!0,o=0;let h=this.position;for(;!E(a)&&a!==0;)a=this.next();this.captureSegment(h,this.position,!1)}return!0}readBlockMapping(e,r){let n=this.tag,i=this.anchor,s={},o=new Set,l,a=!1,c,f,h=null,x=null,w=null,d=!1,S=!1,m;for(this.anchor!==null&&typeof this.anchor<"u"&&this.anchorMap.set(this.anchor,s),m=this.peek();m!==0;){if(l=this.peek(1),c=this.line,f=this.position,(m===63||m===58)&&g(l)){if(m===63)d&&(this.storeMappingPair(s,o,h,x,null),h=x=w=null),S=!0,d=!0,a=!0;else if(d)d=!1,a=!0;else return this.throwError("Cannot read block as explicit mapping pair is incomplete: a key node is missed or followed by a non-tabulated empty line");this.position+=1,m=l}else if(this.composeNode(r,ae,!1,!0))if(this.line===c){for(m=this.peek();k(m);)m=this.next();if(m===58){if(m=this.next(),!g(m))return this.throwError("Cannot read block: a whitespace character is expected after the key-value separator within a block mapping");d&&(this.storeMappingPair(s,o,h,x,null),h=x=w=null),S=!0,d=!1,a=!1,h=this.tag,x=this.result}else return S?this.throwError("Cannot read an implicit mapping pair: missing colon"):(this.tag=n,this.anchor=i,!0)}else return S?this.throwError("Cannot read a block mapping entry: a multiline key may not be an implicit key"):(this.tag=n,this.anchor=i,!0);else break;if((this.line===c||this.lineIndent>e)&&(this.composeNode(e,D,!0,a)&&(d?x=this.result:w=this.result),d||(this.storeMappingPair(s,o,h,x,w,c,f),h=x=w=null),this.skipSeparationSpace(!0,-1),m=this.peek()),this.lineIndent>e&&m!==0)return this.throwError("Cannot read block: bad indentation of a mapping entry");if(this.lineIndent<e)break}return d&&this.storeMappingPair(s,o,h,x,null),S&&(this.tag=n,this.anchor=i,this.kind="mapping",this.result=s),S}readTagProperty(){let e,r=!1,n=!1,i="",s,o;if(o=this.peek(),o!==33)return!1;if(this.tag!==null)return this.throwError("Cannot read tag property: duplication of a tag property");if(o=this.next(),o===60?(r=!0,o=this.next()):o===33?(n=!0,i="!!",o=this.next()):i="!",e=this.position,r){do o=this.next();while(o!==0&&o!==62);if(this.position<this.length)s=this.input.slice(e,this.position),o=this.next();else return this.throwError("Cannot read tag property: unexpected end of stream")}else{for(;o!==0&&!g(o);){if(o===33){if(n)return this.throwError("Cannot read tag property: tag suffix cannot contain an exclamation mark");if(i=this.input.slice(e-1,this.position+1),!ue.test(i))return this.throwError("Cannot read tag property: named tag handle contains invalid characters");n=!0,e=this.position+1}o=this.next()}if(s=this.input.slice(e,this.position),Cr.test(s))return this.throwError("Cannot read tag property: tag suffix cannot contain flow indicator characters")}if(s&&!ce.test(s))return this.throwError(`Cannot read tag property: invalid characters in tag name "${s}"`);if(r)this.tag=s;else if(this.tagMap.has(i))this.tag=this.tagMap.get(i)+s;else if(i==="!")this.tag=`!${s}`;else if(i==="!!")this.tag=`tag:yaml.org,2002:${s}`;else return this.throwError(`Cannot read tag property: undeclared tag handle "${i}"`);return!0}readAnchorProperty(){let e=this.peek();if(e!==38)return!1;if(this.anchor!==null)return this.throwError("Cannot read anchor property: duplicate anchor property");e=this.next();let r=this.position;for(;e!==0&&!g(e)&&!y(e);)e=this.next();return this.position===r?this.throwError("Cannot read anchor property: name of an anchor node must contain at least one character"):(this.anchor=this.input.slice(r,this.position),!0)}readAlias(){if(this.peek()!==42)return!1;let e=this.next(),r=this.position;for(;e!==0&&!g(e)&&!y(e);)e=this.next();if(this.position===r)return this.throwError("Cannot read alias: alias name must contain at least one character");let n=this.input.slice(r,this.position);return this.anchorMap.has(n)?(this.result=this.anchorMap.get(n),this.skipSeparationSpace(!0,-1),!0):this.throwError(`Cannot read alias: unidentified alias "${n}"`)}composeNode(e,r,n,i){let s,o,l=1,a=!1,c=!1,f,h,x;this.tag=null,this.anchor=null,this.kind=null,this.result=null;let w=s=o=D===r||le===r;if(n&&this.skipSeparationSpace(!0,-1)&&(a=!0,this.lineIndent>e?l=1:this.lineIndent===e?l=0:this.lineIndent<e&&(l=-1)),l===1)for(;this.readTagProperty()||this.readAnchorProperty();)this.skipSeparationSpace(!0,-1)?(a=!0,o=w,this.lineIndent>e?l=1:this.lineIndent===e?l=0:this.lineIndent<e&&(l=-1)):o=!1;if(o&&(o=a||i),l===1||D===r)if(h=F===r||ae===r?e:e+1,x=this.position-this.lineStart,l===1)if(o&&(this.readBlockSequence(x)||this.readBlockMapping(x,h))||this.readFlowCollection(h))c=!0;else{if(s&&this.readBlockScalar(h)||this.readSingleQuotedScalar(h)||this.readDoubleQuotedScalar(h))c=!0;else if(this.readAlias()){if(c=!0,this.tag!==null||this.anchor!==null)return this.throwError("Cannot compose node: alias node should not have any properties")}else this.readPlainScalar(h,F===r)&&(c=!0,this.tag===null&&(this.tag="?"));this.anchor!==null&&this.anchorMap.set(this.anchor,this.result)}else l===0&&(c=o&&this.readBlockSequence(x));if(this.tag!==null&&this.tag!=="!")if(this.tag==="?"){for(let d=0;d<this.implicitTypes.length;d++)if(f=this.implicitTypes[d],f.resolve(this.result)){this.result=f.construct(this.result),this.tag=f.tag,this.anchor!==null&&this.anchorMap.set(this.anchor,this.result);break}}else if(this.typeMap[this.kind??"fallback"].has(this.tag)){if(f=this.typeMap[this.kind??"fallback"].get(this.tag),this.result!==null&&f.kind!==this.kind)return this.throwError(`Unacceptable node kind for !<${this.tag}> tag: it should be "${f.kind}", not "${this.kind}"`);if(f.resolve(this.result))this.result=f.construct(this.result),this.anchor!==null&&this.anchorMap.set(this.anchor,this.result);else return this.throwError(`Cannot resolve a node with !<${this.tag}> explicit tag`)}else return this.throwError(`Cannot resolve unknown tag !<${this.tag}>`);return this.tag!==null||this.anchor!==null||c}readDocument(){let e=this.position,r,n,i,s=!1,o;for(this.version=null,this.checkLineBreaks=!1,this.tagMap=new Map,this.anchorMap=new Map;(o=this.peek())!==0&&(this.skipSeparationSpace(!0,-1),o=this.peek(),!(this.lineIndent>0||o!==37));){for(s=!0,o=this.next(),r=this.position;o!==0&&!g(o);)o=this.next();if(n=this.input.slice(r,this.position),i=[],n.length<1)return this.throwError("Cannot read document: directive name length must be greater than zero");for(;o!==0;){for(;k(o);)o=this.next();if(o===35){do o=this.next();while(o!==0&&!E(o));break}if(E(o))break;for(r=this.position;o!==0&&!g(o);)o=this.next();i.push(this.input.slice(r,this.position))}switch(o!==0&&this.readLineBreak(),n){case"YAML":this.yamlDirectiveHandler(...i);break;case"TAG":this.tagDirectiveHandler(...i);break;default:this.dispatchWarning(`unknown document directive "${n}"`);break}}if(this.skipSeparationSpace(!0,-1),this.lineIndent===0&&this.peek()===45&&this.peek(1)===45&&this.peek(2)===45)this.position+=3,this.skipSeparationSpace(!0,-1);else if(s)return this.throwError("Cannot read document: directives end mark is expected");if(this.composeNode(this.lineIndent-1,D,!1,!0),this.skipSeparationSpace(!0,-1),this.checkLineBreaks&&Ar.test(this.input.slice(e,this.position))&&this.dispatchWarning("non-ASCII line breaks are interpreted as content"),this.position===this.lineStart&&this.testDocumentSeparator())this.peek()===46&&(this.position+=3,this.skipSeparationSpace(!0,-1));else if(this.position<this.length-1)return this.throwError("Cannot read document: end of the stream or a document separator is expected");return this.result}*readDocuments(){for(;this.position<this.length-1;)yield this.readDocument()}};function Nr(t){return t=String(t),t.length>0&&(E(t.charCodeAt(t.length-1))||(t+=`
`),t.charCodeAt(0)===65279&&(t=t.slice(1))),t+="\0",t}function me(t,e={}){t=Nr(t);let n=new B(t,{...e,schema:Jt.get(e.schema)}).readDocuments(),i=n.next().value;if(!n.next().done)throw new SyntaxError("Found more than 1 document in the stream: expected a single document");return i??null}function Rr(t){return T(t,X,e=>me(e))}function Vi(t,e){e||(e=[...q.keys()]);for(let r of e){let n=q.get(r);if(!n)throw new TypeError(`Unable to test for ${r} front matter format`);if(n.exec(t)?.index===0)return!0}return!1}export{Se as extractJson,Be as extractToml,Rr as extractYaml,Vi as test};
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