50 lines
2.5 KiB
JavaScript
50 lines
2.5 KiB
JavaScript
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/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import * as strings from './strings.js';
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export function buildReplaceStringWithCasePreserved(matches, pattern) {
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if (matches && (matches[0] !== '')) {
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const containsHyphens = validateSpecificSpecialCharacter(matches, pattern, '-');
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const containsUnderscores = validateSpecificSpecialCharacter(matches, pattern, '_');
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if (containsHyphens && !containsUnderscores) {
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return buildReplaceStringForSpecificSpecialCharacter(matches, pattern, '-');
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}
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else if (!containsHyphens && containsUnderscores) {
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return buildReplaceStringForSpecificSpecialCharacter(matches, pattern, '_');
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}
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if (matches[0].toUpperCase() === matches[0]) {
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return pattern.toUpperCase();
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}
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else if (matches[0].toLowerCase() === matches[0]) {
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return pattern.toLowerCase();
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}
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else if (strings.containsUppercaseCharacter(matches[0][0]) && pattern.length > 0) {
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return pattern[0].toUpperCase() + pattern.substr(1);
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}
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else if (matches[0][0].toUpperCase() !== matches[0][0] && pattern.length > 0) {
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return pattern[0].toLowerCase() + pattern.substr(1);
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}
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else {
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// we don't understand its pattern yet.
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return pattern;
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}
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}
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else {
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return pattern;
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}
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}
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function validateSpecificSpecialCharacter(matches, pattern, specialCharacter) {
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const doesContainSpecialCharacter = matches[0].indexOf(specialCharacter) !== -1 && pattern.indexOf(specialCharacter) !== -1;
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return doesContainSpecialCharacter && matches[0].split(specialCharacter).length === pattern.split(specialCharacter).length;
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}
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function buildReplaceStringForSpecificSpecialCharacter(matches, pattern, specialCharacter) {
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const splitPatternAtSpecialCharacter = pattern.split(specialCharacter);
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const splitMatchAtSpecialCharacter = matches[0].split(specialCharacter);
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let replaceString = '';
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splitPatternAtSpecialCharacter.forEach((splitValue, index) => {
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replaceString += buildReplaceStringWithCasePreserved([splitMatchAtSpecialCharacter[index]], splitValue) + specialCharacter;
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});
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return replaceString.slice(0, -1);
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}
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