.config/coc/extensions/node_modules/coc-prettier/node_modules/stylelint/node_modules/camelcase/index.js

   1 'use strict';
   2
   3 function preserveCamelCase(str) {
   4         let isLastCharLower = false;
   5         let isLastCharUpper = false;
   6         let isLastLastCharUpper = false;
   7
   8         for (let i = 0; i < str.length; i++) {
   9                 const c = str[i];
  10
  11                 if (isLastCharLower && /[a-zA-Z]/.test(c) && c.toUpperCase() === c) {
  12                         str = str.substr(0, i) + '-' + str.substr(i);
  13                         isLastCharLower = false;
  14                         isLastLastCharUpper = isLastCharUpper;
  15                         isLastCharUpper = true;
  16                         i++;
  17                 } else if (isLastCharUpper && isLastLastCharUpper && /[a-zA-Z]/.test(c) && c.toLowerCase() === c) {
  18                         str = str.substr(0, i - 1) + '-' + str.substr(i - 1);
  19                         isLastLastCharUpper = isLastCharUpper;
  20                         isLastCharUpper = false;
  21                         isLastCharLower = true;
  22                 } else {
  23                         isLastCharLower = c.toLowerCase() === c;
  24                         isLastLastCharUpper = isLastCharUpper;
  25                         isLastCharUpper = c.toUpperCase() === c;
  26                 }
  27         }
  28
  29         return str;
  30 }
  31
  32 module.exports = function (str) {
  33         if (arguments.length > 1) {
  34                 str = Array.from(arguments)
  35                         .map(x => x.trim())
  36                         .filter(x => x.length)
  37                         .join('-');
  38         } else {
  39                 str = str.trim();
  40         }
  41
  42         if (str.length === 0) {
  43                 return '';
  44         }
  45
  46         if (str.length === 1) {
  47                 return str.toLowerCase();
  48         }
  49
  50         if (/^[a-z0-9]+$/.test(str)) {
  51                 return str;
  52         }
  53
  54         const hasUpperCase = str !== str.toLowerCase();
  55
  56         if (hasUpperCase) {
  57                 str = preserveCamelCase(str);
  58         }
  59
  60         return str
  61                 .replace(/^[_.\- ]+/, '')
  62                 .toLowerCase()
  63                 .replace(/[_.\- ]+(\w|$)/g, (m, p1) => p1.toUpperCase());
  64 };