Fix incorrect indentation behavior apache#6731

- apache#6731
- When a multi-line parameter of a method invocation has a string with a variable(e.g. `"example {$example}"`), ignore the variable within the string(i.e. {$example}) to avoid adding extra indentations

Example:
```php
$x = test(
    "test {$test}"
);// enter key here
```

Before:
```php
$x = test(
    "test {$test}"
);
    // one indentation is added
```

After:
```php
$x = test(
    "test {$test}"
);
// no indentation
```

php/php.editor/src/org/netbeans/modules/php/editor/lexer/LexUtilities.java

@@ -507,6 +507,7 @@ public static int findStartTokenOfExpression(TokenSequence ts) {
         Token token;
         int balance = 0;
         int curlyBalance = 0;
+        boolean isInQuotes = false; // GH-6731 for checking a variable in string
         do {
             token = ts.token();
             if (token.id() == PHPTokenId.PHP_TOKEN) {
@@ -520,6 +521,14 @@ public static int findStartTokenOfExpression(TokenSequence ts) {
                     default:
                         //no-op
                 }
+            } else if (token.id() == PHPTokenId.PHP_CONSTANT_ENCAPSED_STRING) {
+                // GH-6731 for checking a variable in string
+                // e.g. "example {$example}"
+                if ((token.text().length() == 1 && TokenUtilities.textEquals(token.text(), "\"")) // NOI18N
+                        || (!TokenUtilities.startsWith(token.text(), "\"") && TokenUtilities.endsWith(token.text(), "\"")) // NOI18N
+                        || (TokenUtilities.startsWith(token.text(), "\"") && !TokenUtilities.endsWith(token.text(), "\""))) { // NOI18N
+                    isInQuotes = !isInQuotes;
+                }
             } else if ((token.id() == PHPTokenId.PHP_SEMICOLON || token.id() == PHPTokenId.PHP_OPENTAG)
                     && ts.moveNext()) {
                 // we found previous end of expression => find begin of the current.
@@ -584,7 +593,7 @@ public static int findStartTokenOfExpression(TokenSequence ts) {
                 break;
             } else if (token.id() == PHPTokenId.PHP_CURLY_CLOSE) {
                 curlyBalance--;
-                if (curlyBalance == -1 && ts.moveNext()) {
+                if (!isInQuotes && curlyBalance == -1 && ts.moveNext()) {
                     // we are after previous blog close
                     LexUtilities.findNext(ts, Arrays.asList(
                             PHPTokenId.WHITESPACE,
@@ -600,7 +609,7 @@ public static int findStartTokenOfExpression(TokenSequence ts) {
                 }
             } else if (token.id() == PHPTokenId.PHP_CURLY_OPEN) {
                 curlyBalance++;
-                if (curlyBalance == 1 && ts.moveNext()) {
+                if (!isInQuotes && curlyBalance == 1 && ts.moveNext()) {
                     // we are at the begining of a blog
                     LexUtilities.findNext(ts, Arrays.asList(
                             PHPTokenId.WHITESPACE,

php/php.editor/test/unit/data/testfiles/indent/gh6731_01.php

@@ -0,0 +1,23 @@
+<?php
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+$result = test(
+    "test {$test}"
+);^

php/php.editor/test/unit/data/testfiles/indent/gh6731_01.php.indented

@@ -0,0 +1,24 @@
+<?php
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+$result = test(
+    "test {$test}"
+);
+^

php/php.editor/test/unit/data/testfiles/indent/gh6731_02.php

@@ -0,0 +1,23 @@
+<?php
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+$result = test(
+    "test {$test} test"
+);^

php/php.editor/test/unit/data/testfiles/indent/gh6731_02.php.indented

@@ -0,0 +1,24 @@
+<?php
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+$result = test(
+    "test {$test} test"
+);
+^

php/php.editor/test/unit/data/testfiles/indent/gh6731_03.php

@@ -0,0 +1,21 @@
+<?php
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+$result = test("test {$test} test");^

php/php.editor/test/unit/data/testfiles/indent/gh6731_03.php.indented

@@ -0,0 +1,22 @@
+<?php
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+$result = test("test {$test} test");
+^

php/php.editor/test/unit/data/testfiles/indent/gh6731_04.php

@@ -0,0 +1,27 @@
+<?php
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+$result = test(
+    "test"
+        . "test"
+        . "test"
+        . "test"
+        . "test {$test}"
+);^

php/php.editor/test/unit/data/testfiles/indent/gh6731_04.php.indented

@@ -0,0 +1,28 @@
+<?php
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+$result = test(
+    "test"
+        . "test"
+        . "test"
+        . "test"
+        . "test {$test}"
+);
+^

php/php.editor/test/unit/data/testfiles/indent/gh6731_05.php

@@ -0,0 +1,28 @@
+<?php
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+class GH6731 {
+
+    public function test() {
+        $result = test(
+            "test {$test}"
+        );^
+    }
+}

php/php.editor/test/unit/data/testfiles/indent/gh6731_05.php.indented

@@ -0,0 +1,29 @@
+<?php
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+class GH6731 {
+
+    public function test() {
+        $result = test(
+            "test {$test}"
+        );
+        ^
+    }
+}

php/php.editor/test/unit/src/org/netbeans/modules/php/editor/indent/PHPNewLineIndenterTest.java

@@ -1234,6 +1234,26 @@ public void testEnumerationsWithBackingType_03() throws Exception {
         testIndentInFile("testfiles/indent/php81/enumerationsWithBackingType_03.php");
     }
 
+    public void testGH6731_01() throws Exception {
+        testIndentInFile("testfiles/indent/gh6731_01.php");
+    }
+
+    public void testGH6731_02() throws Exception {
+        testIndentInFile("testfiles/indent/gh6731_02.php");
+    }
+
+    public void testGH6731_03() throws Exception {
+        testIndentInFile("testfiles/indent/gh6731_03.php");
+    }
+
+    public void testGH6731_04() throws Exception {
+        testIndentInFile("testfiles/indent/gh6731_04.php");
+    }
+
+    public void testGH6731_05() throws Exception {
+        testIndentInFile("testfiles/indent/gh6731_05.php");
+    }
+
     @Override
     protected boolean runInEQ() {
         return true;