[Typescript][Angular] fix regression/bug that parameters with an _ ignore naming convention

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/TypeScriptAngularClientCodegen.java

@@ -1,7 +1,6 @@
 package io.swagger.codegen.languages;
 
 import java.io.File;
-import java.lang.StringBuffer;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
@@ -258,11 +257,9 @@ public Map<String, Object> postProcessOperations(Map<String, Object> operations)
             }
 
             // Prep a string buffer where we're going to set up our new version of the string.
-            StringBuffer pathBuffer = new StringBuffer();
-
-            // Set up other variables for tracking the current state of the string.
+            StringBuilder pathBuffer = new StringBuilder();
+            StringBuilder parameterName = new StringBuilder();
             int insideCurly = 0;
-            boolean foundUnderscore = false;
 
             // Iterate through existing string, one character at a time.
             for (int i = 0; i < op.path.length(); i++) {
@@ -279,23 +276,13 @@ public Map<String, Object> postProcessOperations(Map<String, Object> operations)
                     insideCurly--;
 
                     // Add the more complicated component instead of just the brace.
+                    pathBuffer.append(toVarName(parameterName.toString()));
                     pathBuffer.append("))}");
-                    break;
-                case '_':
-                    // If we're inside the curly brace, the following character will need to be uppercase.
-                    // Otherwise, just add the character.
-                    if (insideCurly > 0) {
-                        foundUnderscore = true;
-                    } else {
-                        pathBuffer.append(op.path.charAt(i));
-                    }
+                    parameterName.setLength(0);
                     break;
                 default:
-                    // If we previously found an underscore, we need an uppercase letter.
-                    // Otherwise, just add the character.
-                    if (foundUnderscore) {
-                        pathBuffer.append(Character.toUpperCase(op.path.charAt(i)));
-                        foundUnderscore = false;
+                    if (insideCurly > 0) {
+                        parameterName.append(op.path.charAt(i));
                     } else {
                         pathBuffer.append(op.path.charAt(i));
                     }

samples/client/petstore/typescript-angular-v2/default/.swagger-codegen/VERSION

@@ -1 +1 @@
-2.3.0-SNAPSHOT
+2.3.0

samples/client/petstore/typescript-angular-v2/npm/.swagger-codegen/VERSION

@@ -1 +1 @@
-2.3.0-SNAPSHOT
+2.3.0

samples/client/petstore/typescript-angular-v2/with-interfaces/.swagger-codegen/VERSION

@@ -1 +1 @@
-2.3.0-SNAPSHOT
+2.3.0

samples/client/petstore/typescript-angular-v4.3/npm/.swagger-codegen/VERSION

@@ -1 +1 @@
-2.3.0-SNAPSHOT
+2.3.0

samples/client/petstore/typescript-angular-v4/npm/.swagger-codegen/VERSION

@@ -1 +1 @@
-2.3.0-SNAPSHOT
+2.3.0