is-html-tag-opening/dist/is-html-tag-opening.esm.js

Does an HTML tag start at given position?

/**
 * @name is-html-tag-opening
 * @fileoverview Does an HTML tag start at given position?
 * @version 4.0.22
 * @author Roy Revelt, Codsen Ltd
 * @license MIT
 * {@link https://codsen.com/os/is-html-tag-opening/}
 */

import{matchRight as N,matchRightIncl as x}from"string-match-left-right";import{left as c}from"string-left-right";var d={allowCustomTagNames:!1,skipOpeningBracket:!1},m="\\",g=["a","abbr","acronym","address","applet","area","article","aside","audio","b","base","basefont","bdi","bdo","big","blockquote","body","br","button","canvas","caption","center","cite","code","col","colgroup","data","datalist","dd","del","details","dfn","dialog","dir","div","dl","doctype","dt","em","embed","fieldset","figcaption","figure","font","footer","form","frame","frameset","h1","h1 - h6","h2","h3","h4","h5","h6","head","header","hgroup","hr","html","i","iframe","img","input","ins","kbd","keygen","label","legend","li","link","main","map","mark","math","menu","menuitem","meta","meter","nav","noframes","noscript","object","ol","optgroup","option","output","p","param","picture","pre","progress","q","rb","rp","rt","rtc","ruby","s","samp","script","section","select","slot","small","source","span","strike","strong","style","sub","summary","sup","svg","table","tbody","td","template","textarea","tfoot","th","thead","time","title","tr","track","tt","u","ul","var","video","wbr","xml"];function b(e){return e===void 0||e.toUpperCase()===e.toLowerCase()&&!/\d/.test(e)&&e!=="="}import{left as T}from"string-left-right";function p(e,t){return e[t]==="<"||e[T(e,t)]==="<"}var f="4.0.22";var K=f;function U(e,t=0,h){if(typeof e!="string")throw new Error(`is-html-tag-opening: [THROW_ID_01] the first input argument should have been a string but it was given as "${typeof e}", value being ${JSON.stringify(e,null,4)}`);if(!Number.isInteger(t)||t<0)throw new Error(`is-html-tag-opening: [THROW_ID_02] the second input argument should have been a natural number string index but it was given as "${typeof t}", value being ${JSON.stringify(t,null,4)}`);let n={...d,...h},i="[\\\\ \\t\\r\\n/]*",r="._a-z0-9\xB7\xC0-\xD6\xD8-\xF6\xF8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\uFFFF",w=new RegExp(`^<${n.skipOpeningBracket?"?":""}${i}\\w+${i}\\/?${i}>`,"g"),k=new RegExp(`^<${n.skipOpeningBracket?"?":""}${i}[${r}]+[-${r}]*${i}>`,"g"),E=new RegExp(`^<${n.skipOpeningBracket?"?":""}\\s*\\w+\\s+\\w+(?:-\\w+)?\\s*=\\s*['"\\w]`,"g"),D=new RegExp(`^<${n.skipOpeningBracket?"?":""}\\s*\\w+\\s+[${r}]+[-${r}]*(?:-\\w+)?\\s*=\\s*['"\\w]`),y=new RegExp(`^<${n.skipOpeningBracket?"?":""}\\s*\\/?\\s*\\w+\\s*\\/?\\s*>`,"g"),O=new RegExp(`^<${n.skipOpeningBracket?"?":""}\\s*\\/?\\s*[${r}]+[-${r}]*\\s*\\/?\\s*>`,"g"),R=new RegExp(`^<${n.skipOpeningBracket?"?":""}${i}\\w+(?:\\s*\\w+)?\\s*\\w+=['"]`,"g"),v=new RegExp(`^<${n.skipOpeningBracket?"?":""}${i}[${r}]+[-${r}]*\\s+(?:\\s*\\w+)?\\s*\\w+=['"]`,"g"),$=new RegExp(`^<${n.skipOpeningBracket?"?\\/?":""}(${i}[${r}]+)+${i}[\\\\/=>]`,""),V=new RegExp("^\\/\\s*\\w+s*>"),s=t?e.slice(t):e,a=c(e,t),l=!1,o=!1,B={cb:b,i:!0,trimCharsBeforeMatching:["/",m,"!"," ","	",`
`,"\r"]};return n.allowCustomTagNames?((n.skipOpeningBracket&&(e[t-1]==="<"||e[t-1]==="/"&&e[c(e,a)]==="<")||s[0]==="<"&&s[1]?.trim())&&($.test(s)||/^<\w+$/.test(s))||k.test(s)&&p(e,t)||D.test(s)||O.test(s)&&p(e,t)||v.test(s)||e[t]==="/"&&e[a]!=="<"&&V.test(s))&&(o=!0):(((n.skipOpeningBracket&&(e[t-1]==="<"||e[t-1]==="/"&&e[c(e,a)]==="<")||(s[0]==="<"||s[0]==="/"&&(!e[a]||e[a]!=="<"))&&s[1]?.trim())&&$.test(s)||w.test(s)&&p(e,t)||E.test(s)||y.test(s)&&p(e,t)||R.test(s))&&(l=!0),l&&x(e,t,g,{cb:u=>u===void 0?((e[t]==="<"&&e[t+1]?.trim()||e[t-1]==="<")&&(o=!0),!0):u.toUpperCase()===u.toLowerCase()&&!/\d/.test(u)&&u!=="=",i:!0,trimCharsBeforeMatching:["<","/",m,"!"," ","	",`
`,"\r"]})&&(o=!0)),!o&&e[t]==="<"&&e[t+1]?.trim()&&N(e,t,g,B)&&(o=!0),typeof e=="string"&&t<e.length&&o}export{d as defaults,U as isOpening,K as version};