Android Extensions: Support '.', '-' and ':' in View identifiers (KT-22700)

plugins/android-extensions/android-extensions-compiler/src/org/jetbrains/kotlin/android/synthetic/AndroidConst.kt

@@ -32,7 +32,7 @@ object AndroidConst {
     val ID_ATTRIBUTE_NO_NAMESPACE: String = "id"
     val CLASS_ATTRIBUTE_NO_NAMESPACE: String = "class"
 
-    private val IDENTIFIER_WORD_REGEX = "[(?:\\p{L}\\p{M}*)0-9_\\.]+"
+    private val IDENTIFIER_WORD_REGEX = "[(?:\\p{L}\\p{M}*)0-9_\\.\\:\\-]+"
     val IDENTIFIER_REGEX = "^@(\\+)?(($IDENTIFIER_WORD_REGEX)\\:)?id\\/($IDENTIFIER_WORD_REGEX)$".toRegex()
 
     val CLEAR_FUNCTION_NAME = "clearFindViewByIdCache"
@@ -58,7 +58,21 @@ object AndroidConst {
 fun androidIdToName(id: String): ResourceIdentifier? {
     val values = AndroidConst.IDENTIFIER_REGEX.matchEntire(id)?.groupValues ?: return null
     val packageName = values[3]
-    return ResourceIdentifier(values[4], if (packageName.isEmpty()) null else packageName)
+
+    return ResourceIdentifier(
+        getJavaIdentifierNameForResourceName(values[4]),
+        if (packageName.isEmpty()) null else packageName
+    )
+}
+
+// See also AndroidResourceUtil#getFieldNameByResourceName()
+fun getJavaIdentifierNameForResourceName(styleName: String) = buildString {
+    for (char in styleName) {
+        when (char) {
+            '.', '-', ':' -> append('_')
+            else -> append(char)
+        }
+    }
 }
 
 fun isWidgetTypeIgnored(xmlType: String): Boolean {