RegExp: const getter versions

alib/src/regexp/Alternation.cpp

@@ -46,6 +46,10 @@ list<RegExpElement*>& Alternation::getElements() {
 	return elements;
 }
+const list<RegExpElement*>& Alternation::getElements() const {
+	return elements;
+}
+
 RegExpElement* Alternation::clone() const {
 	return new Alternation(*this);
 }

alib/src/regexp/Alternation.h

@@ -33,6 +33,11 @@ public:
 	 */
 	list<RegExpElement*>& getElements();
+	/**
+	 * @return list of operands
+	 */
+	const list<RegExpElement*>& getElements() const;
+
 	/**
 	 * @copydoc RegExpElement::clone() const
 	 */

alib/src/regexp/Concatenation.cpp

@@ -46,6 +46,10 @@ list<RegExpElement*>& Concatenation::getElements() {
 	return elements;
 }
+const list<RegExpElement*>& Concatenation::getElements() const {
+	return elements;
+}
+
 RegExpElement* Concatenation::clone() const {
 	return new Concatenation(*this);
 }

alib/src/regexp/Concatenation.h

@@ -33,6 +33,11 @@ public:
 	 */
 	list<RegExpElement*>& getElements();
+	/**
+	 * @return list of operands
+	 */
+	const list<RegExpElement*>& getElements() const;
+
 	/**
 	 * @copydoc RegExpElement::clone() const
 	 */

alib/src/regexp/Iteration.cpp

@@ -53,6 +53,10 @@ RegExpElement* Iteration::getElement() {
 	return element;
 }
+const RegExpElement* Iteration::getElement() const {
+	return element;
+}
+
 void Iteration::setElement(RegExpElement* element) {
 	this->element = element;
 }

alib/src/regexp/Iteration.h

@@ -33,6 +33,11 @@ public:
 	 */
 	RegExpElement* getElement();
+	/**
+	 * @return element to iterate
+	 */
+	const RegExpElement* getElement() const;
+
 	/**
 	 * Sets the element to iterate. Doesn't perform the copy, just stores the pointer!
 	 * @param element RegExpElement to set

alib/src/regexp/RegExp.cpp

@@ -62,6 +62,10 @@ RegExpElement* RegExp::getRegExp() {
 	return regExp;
 }
+const RegExpElement* RegExp::getRegExp() const {
+	return regExp;
+}
+
 void RegExp::setRegExp(RegExpElement* regExp) {
 	this->regExp = regExp;
 }

alib/src/regexp/RegExp.h

@@ -12,6 +12,7 @@
 #include <list>
 #include <string>
 #include "RegExpElement.h"
+#include "RegExpEmpty.h"
 namespace regexp {
@@ -42,6 +43,11 @@ public:
 	 */
 	RegExpElement* getRegExp();
+	/**
+	 * @return Root node of the regular expression tree
+	 */
+	const RegExpElement* getRegExp() const;
+
 	/**
 	 * Sets the root node of the regular expression tree. Doesn't perform copy of the regExp param,
 	 * just stores it!