diff --git a/its/ruling/src/integrationTest/resources/expected/PHPWord/php-S1192.json b/its/ruling/src/integrationTest/resources/expected/PHPWord/php-S1192.json
index d38501ce92..c75921061b 100644
--- a/its/ruling/src/integrationTest/resources/expected/PHPWord/php-S1192.json
+++ b/its/ruling/src/integrationTest/resources/expected/PHPWord/php-S1192.json
@@ -13,6 +13,11 @@
 "PHPWord:src/PhpWord/Writer/Word2007/Part/Styles.php": [
 101
 ],
+"PHPWord:src/PhpWord/Writer/Word2007/Part/Theme.php": [
+224,
+227,
+228
+],
 "PHPWord:src/PhpWord/Writer/Word2007/Style/Font.php": [
 45
 ],
diff --git a/php-checks/src/main/java/org/sonar/php/checks/StringLiteralDuplicatedCheck.java b/php-checks/src/main/java/org/sonar/php/checks/StringLiteralDuplicatedCheck.java
index eb23975032..a223708881 100644
--- a/php-checks/src/main/java/org/sonar/php/checks/StringLiteralDuplicatedCheck.java
+++ b/php-checks/src/main/java/org/sonar/php/checks/StringLiteralDuplicatedCheck.java
@@ -21,6 +21,7 @@
 import java.util.List;
 import java.util.Map;
 import java.util.regex.Pattern;
+import org.apache.commons.lang3.StringUtils;
 import org.sonar.check.Rule;
 import org.sonar.check.RuleProperty;
 import org.sonar.plugins.php.api.tree.CompilationUnitTree;
@@ -29,57 +30,20 @@
 import org.sonar.plugins.php.api.visitors.PHPVisitorCheck;
 import org.sonar.plugins.php.api.visitors.PreciseIssue;
 
-import static org.sonar.php.checks.utils.RegexUtils.firstOf;
-import static org.sonar.php.checks.utils.RegexUtils.oneOrMore;
-import static org.sonar.php.checks.utils.RegexUtils.optional;
-import static org.sonar.php.checks.utils.RegexUtils.zeroOrMore;
-
 @Rule(key = "S1192")
 public class StringLiteralDuplicatedCheck extends PHPVisitorCheck {
 
   private static final String MESSAGE = "Define a constant instead of duplicating this literal \"%s\" %s times.";
   private static final String SECONDARY_MESSAGE = "Duplication.";
 
-  private static final String ONLY_ALPHANUMERIC_UNDERSCORES_HYPHENS_AND_PERIODS = "^[a-zA-Z_][.\\-\\w]+$";
-
-  // Single elements
-  private static final String IDENTIFIER = "[a-zA-Z][a-zA-Z0-9\\-_:.]*+";
-  private static final String OPT_SPACING = "\\s*+";
-  private static final String OPT_TEXT_OUTSIDE_OF_TAGS = "[^<>]*+";
-  private static final String DOUBLE_QUOTED_STRING = "\"(?:\\\\.|[^\"])*+\"";
-  private static final String SINGLE_QUOTED_STRING = "'(?:\\\\.|[^'])*+'";
-  private static final String NO_QUOTED_STRING = "[a-zA-Z0-9\\-_:./]++";
-
-  // Partial elements matching
-  private static final String DOUBLE_QUOTED_STRING_PARTIAL_START = "\"(?:\\\\.|[^\"])*+";
-  private static final String SINGLE_QUOTED_STRING_PARTIAL_START = "'(?:\\\\.|[^'])*+";
-  private static final String NO_QUOTED_STRING_PARTIAL_START = "[a-zA-Z0-9\\-_:./]++";
-  private static final String TAG_ATTRIBUTE_PARTIAL_START = OPT_SPACING
-    + optional("=", OPT_SPACING, optional(firstOf(DOUBLE_QUOTED_STRING_PARTIAL_START, SINGLE_QUOTED_STRING_PARTIAL_START, NO_QUOTED_STRING_PARTIAL_START)));
-
-  // Complex regexes
-  private static final String TAG_ATTRIBUTE = IDENTIFIER + OPT_SPACING + optional("=", OPT_SPACING, firstOf(DOUBLE_QUOTED_STRING, SINGLE_QUOTED_STRING, NO_QUOTED_STRING));
-  private static final String HTML_TAG_FULL = "</?" + OPT_SPACING + IDENTIFIER + OPT_SPACING + zeroOrMore(TAG_ATTRIBUTE, OPT_SPACING) + "/?+>";
-  private static final String HTML_TAG_PARTIAL_START = OPT_SPACING + "</?+" + OPT_SPACING
-    + optional(IDENTIFIER, OPT_SPACING, zeroOrMore(TAG_ATTRIBUTE, OPT_SPACING), optional(TAG_ATTRIBUTE_PARTIAL_START));
-  private static final String HTML_TAG_PARTIAL_END = "[\"']?+" + OPT_SPACING + zeroOrMore(TAG_ATTRIBUTE, OPT_SPACING) + "/?+>";
-  private static final String HTML_CONTENT = optional(HTML_TAG_PARTIAL_END) + oneOrMore(OPT_TEXT_OUTSIDE_OF_TAGS, HTML_TAG_FULL) + OPT_TEXT_OUTSIDE_OF_TAGS
-    + optional(HTML_TAG_PARTIAL_START);
-
-  private static final String FULL_ALLOWED_LITERALS_REGEX = firstOf(
-    HTML_CONTENT,
-    OPT_TEXT_OUTSIDE_OF_TAGS + HTML_TAG_PARTIAL_START,
-    HTML_TAG_PARTIAL_END + OPT_TEXT_OUTSIDE_OF_TAGS,
-    HTML_TAG_PARTIAL_END + OPT_TEXT_OUTSIDE_OF_TAGS + HTML_TAG_PARTIAL_START,
-    ONLY_ALPHANUMERIC_UNDERSCORES_HYPHENS_AND_PERIODS);
-  private static final Pattern ALLOWED_DUPLICATED_LITERALS = Pattern.compile(FULL_ALLOWED_LITERALS_REGEX);
-
-  public static final int THRESHOLD_DEFAULT = 3;
-  public static final int MINIMAL_LITERAL_LENGTH_DEFAULT = 5;
+  private static final Pattern ALLOWED_DUPLICATED_LITERALS = Pattern.compile("^[a-zA-Z_][.\\-\\w]+$");
 
   private final Map<String, LiteralTree> firstOccurrenceTrees = new HashMap<>();
   private final Map<String, List<LiteralTree>> sameLiteralOccurrences = new HashMap<>();
 
+  public static final int THRESHOLD_DEFAULT = 3;
+  public static final int MINIMAL_LITERAL_LENGTH_DEFAULT = 5;
+
   @RuleProperty(
     key = "threshold",
     defaultValue = "" + THRESHOLD_DEFAULT)
@@ -102,10 +66,9 @@ public void visitCompilationUnit(CompilationUnitTree tree) {
 
   private void finish() {
     for (Map.Entry<String, List<LiteralTree>> literalOccurrences : sameLiteralOccurrences.entrySet()) {
-      String value = literalOccurrences.getKey();
       List<LiteralTree> occurrences = literalOccurrences.getValue();
 
-      if (occurrences.size() >= threshold && !ALLOWED_DUPLICATED_LITERALS.matcher(value).matches()) {
+      if (occurrences.size() >= threshold) {
         String literal = literalOccurrences.getKey();
         String message = String.format(MESSAGE, literal, occurrences.size());
         LiteralTree firstOccurrenceTree = firstOccurrenceTrees.get(literal);
@@ -120,15 +83,17 @@ private void finish() {
   @Override
   public void visitLiteral(LiteralTree tree) {
     if (tree.is(Kind.REGULAR_STRING_LITERAL)) {
-      String literal = tree.value().replace("\\'", "'").replace("\\\"", "\"");
-      String value = removeQuotesAndQuotesEscaping(literal);
+      String literal = tree.value();
+      String value = StringUtils.substring(literal, 1, literal.length() - 1);
+
+      if (value.length() >= minimalLiteralLength && !ALLOWED_DUPLICATED_LITERALS.matcher(value).find()) {
 
-      if (value.length() >= minimalLiteralLength) {
         if (!sameLiteralOccurrences.containsKey(value)) {
           List<LiteralTree> occurrences = new ArrayList<>();
           occurrences.add(tree);
           sameLiteralOccurrences.put(value, occurrences);
           firstOccurrenceTrees.put(value, tree);
+
         } else {
           sameLiteralOccurrences.get(value).add(tree);
         }
@@ -136,9 +101,4 @@ public void visitLiteral(LiteralTree tree) {
     }
   }
 
-  private static String removeQuotesAndQuotesEscaping(String s) {
-    var quote = s.charAt(0);
-    return s.substring(1, s.length() - 1).replace("\\" + quote, String.valueOf(quote));
-  }
-
 }
diff --git a/php-checks/src/main/java/org/sonar/php/checks/utils/RegexUtils.java b/php-checks/src/main/java/org/sonar/php/checks/utils/RegexUtils.java
deleted file mode 100644
index 689b044ec4..0000000000
--- a/php-checks/src/main/java/org/sonar/php/checks/utils/RegexUtils.java
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * SonarQube PHP Plugin
- * Copyright (C) 2010-2024 SonarSource SA
- * mailto:info AT sonarsource DOT com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the Sonar Source-Available License Version 1, as published by SonarSource SA.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the Sonar Source-Available License for more details.
- *
- * You should have received a copy of the Sonar Source-Available License
- * along with this program; if not, see https://sonarsource.com/license/ssal/
- */
-package org.sonar.php.checks.utils;
-
-public final class RegexUtils {
-  private RegexUtils() {
-  }
-
-  public static String oneOrMore(String... s) {
-    return "(?:" + String.join("", s) + ")++";
-  }
-
-  public static String zeroOrMore(String... s) {
-    return "(?:" + String.join("", s) + ")*+";
-  }
-
-  public static String optional(String... s) {
-    return "(?:" + String.join("", s) + ")?+";
-  }
-
-  public static String firstOf(String... s) {
-    return "(?:(?:" + String.join(")|(?:", s) + "))";
-  }
-}
diff --git a/php-checks/src/test/java/org/sonar/php/checks/utils/RegexUtilsTest.java b/php-checks/src/test/java/org/sonar/php/checks/utils/RegexUtilsTest.java
deleted file mode 100644
index 4af364bca4..0000000000
--- a/php-checks/src/test/java/org/sonar/php/checks/utils/RegexUtilsTest.java
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * SonarQube PHP Plugin
- * Copyright (C) 2010-2024 SonarSource SA
- * mailto:info AT sonarsource DOT com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the Sonar Source-Available License Version 1, as published by SonarSource SA.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the Sonar Source-Available License for more details.
- *
- * You should have received a copy of the Sonar Source-Available License
- * along with this program; if not, see https://sonarsource.com/license/ssal/
- */
-package org.sonar.php.checks.utils;
-
-import org.junit.jupiter.api.Test;
-
-import static org.assertj.core.api.Assertions.assertThat;
-
-class RegexUtilsTest {
-
-  @Test
-  void shouldCreateOneOrMoreRegexExpression() {
-    var regex = RegexUtils.oneOrMore("a", "b");
-    assertThat(regex).isEqualTo("(?:ab)++");
-  }
-
-  @Test
-  void shouldCreateZeroOrMoreRegexExpression() {
-    var regex = RegexUtils.zeroOrMore("a", "b");
-    assertThat(regex).isEqualTo("(?:ab)*+");
-  }
-
-  @Test
-  void shouldCreateOptionalRegexExpression() {
-    var regex = RegexUtils.optional("a", "b");
-    assertThat(regex).isEqualTo("(?:ab)?+");
-  }
-
-  @Test
-  void shouldCreateFirstOfRegexExpression() {
-    var regex = RegexUtils.firstOf("a", "b");
-    assertThat(regex).isEqualTo("(?:(?:a)|(?:b))");
-  }
-
-  @Test
-  void shouldCreateFirstOfRegexExpressionSingleValue() {
-    var regex = RegexUtils.firstOf("a");
-    assertThat(regex).isEqualTo("(?:(?:a))");
-  }
-}
diff --git a/php-checks/src/test/resources/checks/StringLiteralDuplicatedCheck/default.php b/php-checks/src/test/resources/checks/StringLiteralDuplicatedCheck/default.php
index 003ed8a6e3..e297170394 100644
--- a/php-checks/src/test/resources/checks/StringLiteralDuplicatedCheck/default.php
+++ b/php-checks/src/test/resources/checks/StringLiteralDuplicatedCheck/default.php
@@ -32,11 +32,11 @@
 echo "$totototo";
 
 
-$a["name1_name-2."];    // OK - Only alphanumeric, -, _ and .
-$a["name1_name-2."];
-$a["name1_name-2."];
-$a["name1_name-2."];
-$a["name1_name-2."];
+$a["name1_name-2"];    // OK - Only alphanumeric, - and _
+$a["name1_name-2"];
+$a["name1_name-2"];
+$a["name1_name-2"];
+$a["name1_name-2"];
 
 $a["name1/name2"];    // Noncompliant {{Define a constant instead of duplicating this literal "name1/name2" 5 times.}}
 $a["name1/name2"];
@@ -53,117 +53,3 @@
 $score = $request->getParam('_score'); // OK - Only alphanumeric, -, _ and .
 $score = $request->getParam('_score');
 $score = $request->getParam('_score');
-
-$output = '';
-$output .= '<span class="payment">'.$total.'</span>';
-$output .= '<span class="payment-summary">'.$total_payment.'</span>';
-$output .= '<span class="badge normal">'.$inc_vat_text.'</span>';
-
-$output .= '<div>'.$total.'</div>';
-$output .= '<div>'.$total_payment.'</div>';
-$output .= '<div>'.$inc_vat_text.'</div>';
-
-$output = '<custom-tag_name:example.class>'.$var1.'</custom-tag_name:example.class>';
-$output = '<custom-tag_name:example.class>'.$var2.'</custom-tag_name:example.class>';
-$output = '<custom-tag_name:example.class>'.$var3.'</custom-tag_name:example.class>';
-
-$output .= '<div class="beautiful">'.$total.'</div>';
-$output .= '<div class="beautiful">'.$total_payment.'</div>';
-$output .= '<div class="beautiful">'.$inc_vat_text.'</div>';
-
-$output .= '<span class="payment">'.$total.'</span' + '>';
-$output .= '<span class="payment-summary">'.$total_payment.'</span' + '>';
-$output .= '<span class="badge normal">'.$inc_vat_text.'</span' + '>';
-
-// HTML tag with attribute and escaping '
-$output .= '<div some-attribute-1="value1" some-attribute-2=\'value2\' some-attribute-3=value3 some-attribute-4>'.$total.'</div>';
-$output .= '<div some-attribute-1="value1" some-attribute-2=\'value2\' some-attribute-3=value3 some-attribute-4>'.$total.'</div>';
-$output .= '<div some-attribute-1="value1" some-attribute-2=\'value2\' some-attribute-3=value3 some-attribute-4>'.$total.'</div>';
-
-// HTML tag with attribute and escaping "
-$output .= "<span class=\"payment\">".$total.'</span>';
-$output .= "<span class=\"payment\">".$total.'</span>';
-$output .= "<span class=\"payment\">".$total.'</span>';
-
-// partial HTML tag start
-$output .= '<div some-attr='.$value.'>';
-$output .= '<div some-attr='.$value.'>';
-$output .= '<div some-attr='.$value.'>';
-
-// partial HTML tag start with content before
-$test = 'When handling an <a href="http://';
-$test = 'When handling an <a href="http://';
-$test = 'When handling an <a href="http://';
-
-// partial HTML tag end
-$output .= '<div><'.$tag_name.' with="value">';
-$output .= '<div><'.$tag_name.' with="value">';
-$output .= '<div><'.$tag_name.' with="value">';
-
-// partial HTML tag end with content after
-$test = 'with="value"> some content after';
-$test = 'with="value"> some content after';
-$test = 'with="value"> some content after';
-
-// multiple HTML tags
-$output .= '<div><p><span>'.$tag_name.'</div></p></span>';
-$output .= '<div><p><span>'.$tag_name.'</div></p></span>';
-$output .= '<div><p><span>'.$tag_name.'</div></p></span>';
-
-// multiple HTML tags with text content outside of them
-$output .= '<div> some <p> content <span> here '.$tag_name.'</div> and </p> there </span>';
-$output .= '<div> some <p> content <span> here '.$tag_name.'</div> and </p> there </span>';
-$output .= '<div> some <p> content <span> here '.$tag_name.'</div> and </p> there </span>';
-
-// multiple HTML tags with partial end or start tag
-$output .= ' left-from-previous="string"> here '.$tag_name.'</div><div';
-$output .= ' left-from-previous="string"> here '.$tag_name.'</div><div';
-$output .= ' left-from-previous="string"> here '.$tag_name.'</div><div';
-
-// end and start tag in the same string literal
-$output .= 'end-of-tag="val"><div start-of-tag="val" '.$additionl_attribute;
-$output .= 'end-of-tag="val"><div start-of-tag="val" '.$additionl_attribute;
-$output .= 'end-of-tag="val"><div start-of-tag="val" '.$additionl_attribute;
-
-// end and start tag with content between
-$test = 'end-of-tag="val"> some content <div start-of-tag="val" ';
-$test = 'end-of-tag="val"> some content <div start-of-tag="val" ';
-$test = 'end-of-tag="val"> some content <div start-of-tag="val" ';
-
-// end and start tag with content and HTML tags between
-$test = 'end-of-tag="val"> some <i>extra</i> content <div start-of-tag="val" ';
-$test = 'end-of-tag="val"> some <i>extra</i> content <div start-of-tag="val" ';
-$test = 'end-of-tag="val"> some <i>extra</i> content <div start-of-tag="val" ';
-
-// self closing tag
-$test = "<br/>";
-$test = "<br/>";
-$test = "<br/>";
-$test = "<br />";
-$test = "<br />";
-$test = "<br />";
-
-// Examples that still raise an issue
-$test = "<!-- /wp:query -->"; // Noncompliant
-$test = "<!-- /wp:query -->";
-$test = "<!-- /wp:query -->";
-
-$test = "/^<div>Content<\/div>$/"; // Noncompliant
-$test = "/^<div>Content<\/div>$/";
-$test = "/^<div>Content<\/div>$/";
-
-$test = '<<B>%s</B>%s>'; // Noncompliant
-$test = '<<B>%s</B>%s>';
-$test = '<<B>%s</B>%s>';
-
-$test = '<div><!--[if (gte mso 9)|(IE)]>'; // Noncompliant
-$test = '<div><!--[if (gte mso 9)|(IE)]>';
-$test = '<div><!--[if (gte mso 9)|(IE)]>';
-
-$test = '$age < 5'; // Noncompliant
-$test = '$age < 5';
-$test = '$age < 5';
-
-$test = '$name => "abc"'; // Noncompliant
-$test = '$name => "abc"';
-$test = '$name => "abc"';