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20220330_Vote/Ewide.Web.Entry/wwwroot/lib/xe-utils/kebabCase.js

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+var toValueString = require('./toValueString')
+var helperStringSubstring = require('./helperStringSubstring')
+var helperStringLowerCase = require('./helperStringLowerCase')
+
+var kebabCacheMaps = {}
+
+/**
+  * 将带驼峰字符串转成字符串,例如： projectName 转为 project-name
+  *
+  * @param {String} str 字符串
+  * @return {String}
+  */
+function kebabCase (str) {
+  str = toValueString(str)
+  if (kebabCacheMaps[str]) {
+    return kebabCacheMaps[str]
+  }
+  if (/^[A-Z]+$/.test(str)) {
+    return helperStringLowerCase(str)
+  }
+  var rest = str.replace(/^([a-z])([A-Z]+)([a-z]+)$/, function (text, prevLower, upper, nextLower) {
+    var upperLen = upper.length
+    if (upperLen > 1) {
+      return prevLower + '-' + helperStringLowerCase(helperStringSubstring(upper, 0, upperLen - 1)) + '-' + helperStringLowerCase(helperStringSubstring(upper, upperLen - 1, upperLen)) + nextLower
+    }
+    return helperStringLowerCase(prevLower + '-' + upper + nextLower)
+  }).replace(/^([A-Z]+)([a-z]+)?$/, function (text, upper, nextLower) {
+    var upperLen = upper.length
+    return helperStringLowerCase(helperStringSubstring(upper, 0, upperLen - 1) + '-' + helperStringSubstring(upper, upperLen - 1, upperLen) + (nextLower || ''))
+  }).replace(/([a-z]?)([A-Z]+)([a-z]?)/g, function (text, prevLower, upper, nextLower, index) {
+    var upperLen = upper.length
+    if (upperLen > 1) {
+      if (prevLower) {
+        prevLower += '-'
+      }
+      if (nextLower) {
+        return (prevLower || '') + helperStringLowerCase(helperStringSubstring(upper, 0, upperLen - 1)) + '-' + helperStringLowerCase(helperStringSubstring(upper, upperLen - 1, upperLen)) + nextLower
+      }
+    }
+    return (prevLower || '') + (index ? '-' : '') + helperStringLowerCase(upper) + (nextLower || '')
+  })
+  rest = rest.replace(/([-]+)/g, function (text, flag, index) {
+    return index && index + flag.length < rest.length ? '-' : ''
+  })
+  kebabCacheMaps[str] =  rest
+  return rest
+}
+
+module.exports = kebabCase