66 行
2.1 KiB
JavaScript
66 行
2.1 KiB
JavaScript
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// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
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// See LICENSE in the project root for license information.
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import { Text } from '@rushstack/node-core-library';
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import { TextRewriter } from './TextRewriter';
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/**
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* For use with {@link TextRewriterTransform}, this rewriter converts all newlines to
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* a standard format.
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*
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* @public
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*/
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export class NormalizeNewlinesTextRewriter extends TextRewriter {
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constructor(options) {
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super();
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this.newlineKind = options.newlineKind;
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this.newline = Text.getNewline(options.newlineKind);
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this.ensureNewlineAtEnd = !!options.ensureNewlineAtEnd;
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}
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initialize() {
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return {
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characterToIgnore: '',
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incompleteLine: false
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};
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}
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process(unknownState, text) {
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const state = unknownState;
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let result = '';
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if (text.length > 0) {
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let i = 0;
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do {
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const c = text[i];
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++i;
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if (c === state.characterToIgnore) {
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state.characterToIgnore = '';
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}
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else if (c === '\r') {
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result += this.newline;
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state.characterToIgnore = '\n';
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state.incompleteLine = false;
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}
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else if (c === '\n') {
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result += this.newline;
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state.characterToIgnore = '\r';
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state.incompleteLine = false;
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}
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else {
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result += c;
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state.characterToIgnore = '';
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state.incompleteLine = true;
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}
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} while (i < text.length);
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}
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return result;
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}
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close(unknownState) {
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const state = unknownState;
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state.characterToIgnore = '';
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if (state.incompleteLine) {
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state.incompleteLine = false;
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return this.newline;
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}
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else {
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return '';
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}
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}
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}
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//# sourceMappingURL=NormalizeNewlinesTextRewriter.js.map
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