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refactor: enhance html attribute extractor util

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This commit is contained in:
Hossein Mehrabi 2023-08-31 00:57:22 +03:30
parent 61a229d015
commit 3c5467a7f4
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GPG Key ID: 45C04964191AFAA1
1 changed files with 25 additions and 10 deletions
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35
src/utils/html.utils.ts
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@ -1,6 +1,4 @@
const regexForInnerHtml = /<[^>]*>/ const attributeRegex = (name: string) => new RegExp(`^<[^>]*${name}="([^"]*)"`)
const regexForId = /id="([^"]*)"/
const regexForClass = /class="([^"]*)"/
export function extractInnerHtml(htmlString: string) { export function extractInnerHtml(htmlString: string) {
var regex = /^<[^>]+>([\s\S]*)<\/[^>]+>$/ var regex = /^<[^>]+>([\s\S]*)<\/[^>]+>$/
@ -13,14 +11,31 @@ export function extractInnerHtml(htmlString: string) {
} }
} }
export const extractIdFromFirstTag = (html: string) => { export const extractIdFromFirstTag = (html: string) =>
const match = html.match(regexForId) extractAttributeFromHTML(html, 'id')
return match ? match[1] : null
}
export const extractClassFromFirstTag = (html: string) => { export const extractClassFromFirstTag = (html: string) =>
const match = html.match(regexForClass) extractAttributeFromHTML(html, 'class')
return match ? match[1] : null
export function extractAttributeFromHTML(
html: string,
attribute: string,
): string | null
export function extractAttributeFromHTML(
html: string,
attribute: string,
defaultValue: string,
): string
export function extractAttributeFromHTML(
html: string,
attribute: string,
defaultValue?: string,
): string | null {
return (
(html.match(attributeRegex(attribute))?.[1] as string) ||
defaultValue ||
null
)
} }
export const isAuthorsParagraph = (html: string) => { export const isAuthorsParagraph = (html: string) => {