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Refactor html parsing and template import logic
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| import { | ||
| isDefined, | ||
| isNotDefined, | ||
| } from '@togglecorp/fujs'; | ||
| import { type CellRichTextValue } from 'exceljs'; | ||
|
|
||
| export interface Plugin { | ||
| tag: string, | ||
| transformer: (token: string, richText: CellRichTextValue['richText'][number]) => CellRichTextValue['richText'][number], | ||
| } | ||
|
|
||
| const boldPlugin: Plugin = { | ||
| tag: 'b', | ||
| transformer: (_: string, richText) => ({ | ||
| ...richText, | ||
| font: { | ||
| ...richText.font, | ||
| bold: true, | ||
| }, | ||
| }), | ||
| }; | ||
| const italicsPlugin: Plugin = { | ||
| tag: 'i', | ||
| transformer: (_: string, richText) => ({ | ||
| ...richText, | ||
| font: { | ||
| ...richText.font, | ||
| italic: true, | ||
| }, | ||
| }), | ||
| }; | ||
| const underlinePlugin: Plugin = { | ||
| tag: 'u', | ||
| transformer: (_: string, richText) => ({ | ||
| ...richText, | ||
| font: { | ||
| ...richText.font, | ||
| underline: true, | ||
| }, | ||
| }), | ||
| }; | ||
|
|
||
| /** | ||
| * Convert subset of html into excel's richtext format | ||
| * @param value string with or without html tags | ||
| */ | ||
| export function parsePseudoHtml( | ||
| value: undefined, | ||
| extraPlugins?: Plugin[], | ||
| ): undefined; | ||
| export function parsePseudoHtml( | ||
| value: string, | ||
| extraPlugins?: Plugin[], | ||
| ): string | CellRichTextValue | ||
| export function parsePseudoHtml( | ||
| value: string | undefined, | ||
| extraPlugins?: Plugin[], | ||
| ): string | CellRichTextValue | undefined | ||
| export function parsePseudoHtml( | ||
| value: string | undefined, | ||
| extraPlugins: Plugin[] = [], | ||
| ): string | CellRichTextValue | undefined { | ||
| if (isNotDefined(value)) { | ||
| return value; | ||
| } | ||
|
|
||
| const plugins: Plugin[] = [ | ||
| boldPlugin, | ||
| italicsPlugin, | ||
| underlinePlugin, | ||
| ...extraPlugins, | ||
| ]; | ||
|
|
||
| const tagRegex = RegExp(`</?(?:${plugins.map((p) => p.tag).join('|')})>`); | ||
| const tokens = value.split(tagRegex); | ||
| if (tokens.length === 1) { | ||
| return value; | ||
| } | ||
|
|
||
| const openTagRegex = RegExp(`<(?:${plugins.map((p) => p.tag).join('|')})>`); | ||
| const closeTagRegex = RegExp(`</(?:${plugins.map((p) => p.tag).join('|')})>`); | ||
|
|
||
| const stack: string[] = []; | ||
| const richText = tokens.map((token) => { | ||
| if (token.match(openTagRegex)) { | ||
| stack.push(token); | ||
| return undefined; | ||
| } | ||
| if (token.match(closeTagRegex)) { | ||
| // TODO: Check correctness by checking closeTag with last openTag | ||
| stack.pop(); | ||
| return undefined; | ||
| } | ||
|
|
||
| const richTextItem: CellRichTextValue['richText'][number] = plugins | ||
| .filter((plugin) => stack.includes(`<${plugin.tag}>`)) | ||
| .reduce( | ||
| (acc, plugin) => plugin.transformer(token, acc), | ||
| { text: token }, | ||
| ); | ||
| return richTextItem; | ||
| }).filter(isDefined); | ||
|
|
||
| // TODO: Check correctness to check that stack is empty | ||
| return { richText }; | ||
| } |
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