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Diffstat (limited to 'node_modules/camelcase/index.js')
-rw-r--r-- | node_modules/camelcase/index.js | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/node_modules/camelcase/index.js b/node_modules/camelcase/index.js new file mode 100644 index 0000000..579f99b --- /dev/null +++ b/node_modules/camelcase/index.js @@ -0,0 +1,76 @@ +'use strict'; + +const preserveCamelCase = string => { + let isLastCharLower = false; + let isLastCharUpper = false; + let isLastLastCharUpper = false; + + for (let i = 0; i < string.length; i++) { + const character = string[i]; + + if (isLastCharLower && /[a-zA-Z]/.test(character) && character.toUpperCase() === character) { + string = string.slice(0, i) + '-' + string.slice(i); + isLastCharLower = false; + isLastLastCharUpper = isLastCharUpper; + isLastCharUpper = true; + i++; + } else if (isLastCharUpper && isLastLastCharUpper && /[a-zA-Z]/.test(character) && character.toLowerCase() === character) { + string = string.slice(0, i - 1) + '-' + string.slice(i - 1); + isLastLastCharUpper = isLastCharUpper; + isLastCharUpper = false; + isLastCharLower = true; + } else { + isLastCharLower = character.toLowerCase() === character && character.toUpperCase() !== character; + isLastLastCharUpper = isLastCharUpper; + isLastCharUpper = character.toUpperCase() === character && character.toLowerCase() !== character; + } + } + + return string; +}; + +const camelCase = (input, options) => { + if (!(typeof input === 'string' || Array.isArray(input))) { + throw new TypeError('Expected the input to be `string | string[]`'); + } + + options = Object.assign({ + pascalCase: false + }, options); + + const postProcess = x => options.pascalCase ? x.charAt(0).toUpperCase() + x.slice(1) : x; + + if (Array.isArray(input)) { + input = input.map(x => x.trim()) + .filter(x => x.length) + .join('-'); + } else { + input = input.trim(); + } + + if (input.length === 0) { + return ''; + } + + if (input.length === 1) { + return options.pascalCase ? input.toUpperCase() : input.toLowerCase(); + } + + const hasUpperCase = input !== input.toLowerCase(); + + if (hasUpperCase) { + input = preserveCamelCase(input); + } + + input = input + .replace(/^[_.\- ]+/, '') + .toLowerCase() + .replace(/[_.\- ]+(\w|$)/g, (_, p1) => p1.toUpperCase()) + .replace(/\d+(\w|$)/g, m => m.toUpperCase()); + + return postProcess(input); +}; + +module.exports = camelCase; +// TODO: Remove this for the next major release +module.exports.default = camelCase; |