@terminus/ngx-tools
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83 lines • 9.28 kB
JavaScript
/*
* 'Inspired' by https://github.com/sindresorhus/camelcase
*/
/**
* Function that preserves camel case
*
* @param input - The string input
* @returns The adjusted string
*/
function preserveCamelCase(input) {
var isLastCharLower = false;
var isLastCharUpper = false;
var isLastLastCharUpper = false;
for (var i = 0; i < input.length; i++) {
var c = input[i];
if (isLastCharLower && /[a-zA-Z]/.test(c) && c.toUpperCase() === c) {
input = input.slice(0, i) + "-" + input.slice(i);
isLastCharLower = false;
isLastLastCharUpper = isLastCharUpper;
isLastCharUpper = true;
i++;
}
else if (isLastCharUpper && isLastLastCharUpper && /[a-zA-Z]/.test(c) && c.toLowerCase() === c) {
input = input.slice(0, i - 1) + "-" + input.slice(i - 1);
isLastLastCharUpper = isLastCharUpper;
isLastCharUpper = false;
isLastCharLower = true;
}
else {
isLastCharLower = c.toLowerCase() === c;
isLastLastCharUpper = isLastCharUpper;
isLastCharUpper = c.toUpperCase() === c;
}
}
return input;
}
/**
* Post process a conversion into PascalCase if necessary
*
* @param x - The string
* @param pascalCase - A boolean representing if the string should be converted to PascalCase
* @returns The final string
*/
var postProcess = function (x, pascalCase) { return (pascalCase ? x.charAt(0).toUpperCase() + x.slice(1) : x); };
var ɵ0 = postProcess;
/**
* Convert a string to camelCase
*
* @param input - The string to convert
* @param pascalCase - A boolean representing if the string should be converted to PascalCase
* @returns The camelCase version of the string
*
* @example
* toCamelCase('MY_TEXT') // Returns: `myText`
* toCamelCase('MY_TEXT', true) // Returns: `MyText`
*/
export function toCamelCase(input, pascalCase) {
if (pascalCase === void 0) { pascalCase = false; }
if (!input) {
return undefined;
}
// Trim whitespace
input = input.trim();
// Test for a single character
if (input.length === 1) {
return pascalCase ? input.toUpperCase() : input.toLowerCase();
}
// Test if we are dealing with a single lowercased word
if (/^[a-z\d]+$/.test(input)) {
return postProcess(input, pascalCase);
}
// Test if there are any uppercase
if (input !== input.toLowerCase()) {
input = preserveCamelCase(input);
}
input = input
.replace(/^[_.\- ]+/, '')
.toLowerCase()
.replace(/[_.\- ]+(\w|$)/g, function (m, p1) { return p1.toUpperCase(); });
return postProcess(input, pascalCase);
}
export { ɵ0 };
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