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- const NUMBER_CHAR_RE = /\d/;
- const STR_SPLITTERS = ["-", "_", "/", "."];
- function isUppercase(char = "") {
- if (NUMBER_CHAR_RE.test(char)) {
- return void 0;
- }
- return char !== char.toLowerCase();
- }
- function splitByCase(str, separators) {
- const splitters = separators ?? STR_SPLITTERS;
- const parts = [];
- if (!str || typeof str !== "string") {
- return parts;
- }
- let buff = "";
- let previousUpper;
- let previousSplitter;
- for (const char of str) {
- const isSplitter = splitters.includes(char);
- if (isSplitter === true) {
- parts.push(buff);
- buff = "";
- previousUpper = void 0;
- continue;
- }
- const isUpper = isUppercase(char);
- if (previousSplitter === false) {
- if (previousUpper === false && isUpper === true) {
- parts.push(buff);
- buff = char;
- previousUpper = isUpper;
- continue;
- }
- if (previousUpper === true && isUpper === false && buff.length > 1) {
- const lastChar = buff.at(-1);
- parts.push(buff.slice(0, Math.max(0, buff.length - 1)));
- buff = lastChar + char;
- previousUpper = isUpper;
- continue;
- }
- }
- buff += char;
- previousUpper = isUpper;
- previousSplitter = isSplitter;
- }
- parts.push(buff);
- return parts;
- }
- function upperFirst(str) {
- return str ? str[0].toUpperCase() + str.slice(1) : "";
- }
- function lowerFirst(str) {
- return str ? str[0].toLowerCase() + str.slice(1) : "";
- }
- function pascalCase(str, opts) {
- return str ? (Array.isArray(str) ? str : splitByCase(str)).map((p) => upperFirst(opts?.normalize ? p.toLowerCase() : p)).join("") : "";
- }
- function camelCase(str, opts) {
- return lowerFirst(pascalCase(str || "", opts));
- }
- function kebabCase(str, joiner) {
- return str ? (Array.isArray(str) ? str : splitByCase(str)).map((p) => p.toLowerCase()).join(joiner ?? "-") : "";
- }
- function snakeCase(str) {
- return kebabCase(str || "", "_");
- }
- function flatCase(str) {
- return kebabCase(str || "", "");
- }
- function trainCase(str, opts) {
- return (Array.isArray(str) ? str : splitByCase(str)).filter(Boolean).map((p) => upperFirst(opts?.normalize ? p.toLowerCase() : p)).join("-");
- }
- const titleCaseExceptions = /^(a|an|and|as|at|but|by|for|if|in|is|nor|of|on|or|the|to|with)$/i;
- function titleCase(str, opts) {
- return (Array.isArray(str) ? str : splitByCase(str)).filter(Boolean).map(
- (p) => titleCaseExceptions.test(p) ? p.toLowerCase() : upperFirst(opts?.normalize ? p.toLowerCase() : p)
- ).join(" ");
- }
- export { camelCase, flatCase, isUppercase, kebabCase, lowerFirst, pascalCase, snakeCase, splitByCase, titleCase, trainCase, upperFirst };
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