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/proc/1/cwd/proc/self/root/node24/lib/node_modules/npm/node_modules/diff/libesm/diff

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sentence.js1.9 KB · 44 lines
import Diff from './base.js';function isSentenceEndPunct(char) {    return char == '.' || char == '!' || char == '?';}class SentenceDiff extends Diff {    tokenize(value) {        var _a;        // If in future we drop support for environments that don't support lookbehinds, we can replace        // this entire function with:        //     return value.split(/(?<=[.!?])(\s+|$)/);        // but until then, for similar reasons to the trailingWs function in string.ts, we are forced        // to do this verbosely "by hand" instead of using a regex.        const result = [];        let tokenStartI = 0;        for (let i = 0; i < value.length; i++) {            if (i == value.length - 1) {                result.push(value.slice(tokenStartI));                break;            }            if (isSentenceEndPunct(value[i]) && value[i + 1].match(/\s/)) {                // We've hit a sentence break - i.e. a punctuation mark followed by whitespace.                // We now want to push TWO tokens to the result:                // 1. the sentence                result.push(value.slice(tokenStartI, i + 1));                // 2. the whitespace                i = tokenStartI = i + 1;                while ((_a = value[i + 1]) === null || _a === void 0 ? void 0 : _a.match(/\s/)) {                    i++;                }                result.push(value.slice(tokenStartI, i + 1));                // Then the next token (a sentence) starts on the character after the whitespace.                // (It's okay if this is off the end of the string - then the outer loop will terminate                // here anyway.)                tokenStartI = i + 1;            }        }        return result;    }}export const sentenceDiff = new SentenceDiff();export function diffSentences(oldStr, newStr, options) {    return sentenceDiff.diff(oldStr, newStr, options);}