Finds rich text in strings, ex: links, mentions, emails, your own parser, in an non overlapping way to prevent dubble matching.
Example
import {richStringParser} from 'rich-string-parser' import {emailParser} from 'rich-string-parser/lib/parsers/email-parser' import {linkParser} from 'rich-string-parser/lib/parsers/link-parser' const result = richStringParser( 'https://www.typescriptlang.org/ text example@example.com more text', [emailParser(), linkParser()], ) // log result /* [ { type: 'LinkParser', match: 'https://www.typescriptlang.org/', index: 0, subIndex: 0 }, ' text ', { type: 'EmailParser', match: 'example@example.com', index: 37, subIndex: 37 }, ' more text' ] */
required parameters
{
"type": "", // uniq for each parser
"match": "", // result from parser
"index": 0, // where match is found based on whole string
"subIndex": 0 // where match is found based on parsed substring
}MentionParser
Matches on @(number|string), @(9712|John)
Result:
Without mention type:
{ type: 'MentionParser', match: '@(9712|John)', id: 9712, name: 'John', index: 0, subIndex: 0, target: undefined }
With mention type provided:
{ type: 'MentionParser', match: '@(0|Testgroupchatroom|group)', id: 0, name: 'Testgroupchatroom', index: 0, subIndex: 0, target: 'group' }
EmailParser
Matches on example@example.com,
Result:
{ type: 'EmailParser', match: 'example@example.com', index: 0, subIndex: 0, }
LinkParser
Matches on https://example.com,
Result:
{ type: 'LinkParser', match: 'https://example.com', index: 0, subIndex: 0, }
Create a function that retrurns a Parser interface with a custom string in generic type, example Parser<'HashtagParser'>.
Implemente the required return object function parse.
Example
function hashtagParser(): Parser<'HashtagParser'> { const regex: RegExp = /(#[a-z\d-]+)/gi return { parse: (text, index) => { const result = regex.exec(text) if (result === null) return null return { type: 'HashtagParser', match: result[0], index: index + result.index, // don't forget to add the global index subIndex: result.index, } }, } }