text-case-converter/dist/index.js

[DEPRECATED] A modern TypeScript library to convert strings between various case formats (camelCase, PascalCase, snake_case, etc.).

// src/utils.ts
function splitWords(input) {
  if (typeof input !== "string") throw new TypeError("Input must be a string");
  const processed = input.replace(/[_\-\s]+/g, " ").replace(/[^a-zA-Z0-9 ]+/g, " ").trim();
  const words = processed.length ? processed.split(/\s+/) : [];
  const result = [];
  for (const word of words) {
    const parts = word.replace(/([a-z0-9])([A-Z])/g, "$1 $2").replace(/([A-Z]+)([A-Z][a-z0-9]+)/g, "$1 $2").split(" ");
    for (const part of parts) {
      if (part.length > 1) {
        result.push(part.toLowerCase());
      } else {
        result.push(part);
      }
    }
  }
  const final = [];
  for (const w of result) {
    if (/^[a-zA-Z]+[0-9]+$/.test(w) || /^[0-9]+$/.test(w)) {
      final.push(w);
    } else if (/^[a-zA-Z]+$/.test(w)) {
      final.push(w);
    } else {
      const match = w.match(/[a-zA-Z]+|[0-9]+/g);
      if (match) final.push(...match);
    }
  }
  return final;
}
function capitalize(word) {
  return word.charAt(0).toUpperCase() + word.slice(1).toLowerCase();
}
function lowerFirst(word) {
  return word.charAt(0).toLowerCase() + word.slice(1);
}

// src/index.ts
function toCamelCase(input) {
  if (typeof input !== "string") throw new TypeError("Input must be a string");
  if (input === "") return "";
  const words = splitWords(input);
  if (words.length === 0) return "";
  return [lowerFirst(words[0]), ...words.slice(1).map(capitalize)].join("");
}
function toPascalCase(input) {
  if (typeof input !== "string") throw new TypeError("Input must be a string");
  if (input === "") return "";
  const words = splitWords(input);
  if (words.length === 0) return "";
  return words.map(capitalize).join("");
}
function toSnakeCase(input) {
  if (typeof input !== "string") throw new TypeError("Input must be a string");
  if (input === "") return "";
  const words = splitWords(input);
  if (words.length === 0) return "";
  return words.map((w) => w.toLowerCase()).join("_");
}
function toKebabCase(input) {
  if (typeof input !== "string") throw new TypeError("Input must be a string");
  if (input === "") return "";
  const words = splitWords(input);
  if (words.length === 0) return "";
  return words.map((w) => w.toLowerCase()).join("-");
}
function toConstantCase(input) {
  if (typeof input !== "string") throw new TypeError("Input must be a string");
  if (input === "") return "";
  const words = splitWords(input);
  if (words.length === 0) return "";
  return words.map((w) => w.toUpperCase()).join("_");
}
export {
  toCamelCase,
  toConstantCase,
  toKebabCase,
  toPascalCase,
  toSnakeCase
};
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