diff options
Diffstat (limited to 'node_modules/camelcase/index.js')
-rw-r--r-- | node_modules/camelcase/index.js | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/node_modules/camelcase/index.js b/node_modules/camelcase/index.js new file mode 100644 index 0000000..c8492a2 --- /dev/null +++ b/node_modules/camelcase/index.js @@ -0,0 +1,64 @@ +'use strict'; + +function preserveCamelCase(str) { + let isLastCharLower = false; + let isLastCharUpper = false; + let isLastLastCharUpper = false; + + for (let i = 0; i < str.length; i++) { + const c = str[i]; + + if (isLastCharLower && /[a-zA-Z]/.test(c) && c.toUpperCase() === c) { + str = str.substr(0, i) + '-' + str.substr(i); + isLastCharLower = false; + isLastLastCharUpper = isLastCharUpper; + isLastCharUpper = true; + i++; + } else if (isLastCharUpper && isLastLastCharUpper && /[a-zA-Z]/.test(c) && c.toLowerCase() === c) { + str = str.substr(0, i - 1) + '-' + str.substr(i - 1); + isLastLastCharUpper = isLastCharUpper; + isLastCharUpper = false; + isLastCharLower = true; + } else { + isLastCharLower = c.toLowerCase() === c; + isLastLastCharUpper = isLastCharUpper; + isLastCharUpper = c.toUpperCase() === c; + } + } + + return str; +} + +module.exports = function (str) { + if (arguments.length > 1) { + str = Array.from(arguments) + .map(x => x.trim()) + .filter(x => x.length) + .join('-'); + } else { + str = str.trim(); + } + + if (str.length === 0) { + return ''; + } + + if (str.length === 1) { + return str.toLowerCase(); + } + + if (/^[a-z0-9]+$/.test(str)) { + return str; + } + + const hasUpperCase = str !== str.toLowerCase(); + + if (hasUpperCase) { + str = preserveCamelCase(str); + } + + return str + .replace(/^[_.\- ]+/, '') + .toLowerCase() + .replace(/[_.\- ]+(\w|$)/g, (m, p1) => p1.toUpperCase()); +}; |