Upgraded Utility::ReplaceXmlAttribute to ignore elements in comments.

git-svn-id: https://svn.microneil.com/svn/SNFUtility/trunk@53 aa37657e-1934-4a5f-aa6d-2d8eab27ff7c

Common/Utility.cpp

 void
 Utility::ReplaceXmlAttribute(std::string *Content, std::string ElementName, std::string AttributeName, std::string AttributeValue) {
 
+    bool FoundElement;
+
+    FoundElement = false;
+
     std::string::size_type ElementContentBegin;                                 // Index of start of the element content.
     std::string::size_type ElementContentEnd;                                   // One past the end of the element content.
 
-    ElementContentBegin = Content->find("<" + ElementName);                     // Get indices of element content.
-    ElementContentEnd = Content->find("</" + ElementName);
+    ElementContentBegin = 0;
+    while (!FoundElement) {
 
-    if (std::string::npos == ElementContentBegin) {
-	std::string Temp;
+	ElementContentBegin = Content->find("<" + ElementName, ElementContentBegin); // Get indices of element content.
+	ElementContentEnd = Content->find("</" + ElementName, ElementContentBegin);
 
-	Temp = "Unable to find the start of element '" + ElementName;
-	Temp += "'.";
-	throw std::runtime_error(Temp);
+	if (std::string::npos == ElementContentBegin) {
+	    std::string Temp;
+
+	    Temp = "Unable to find the start of element '" + ElementName;
+	    Temp += "'.";
+	    throw std::runtime_error(Temp);
+
+	}
+
+	// Check whether the element is in a comment.
+	std::string::size_type PrevCommentBegin;
+	std::string::size_type PrevCommentEnd;
+
+	PrevCommentBegin = Content->rfind("<!--", ElementContentBegin);
+	PrevCommentEnd = Content->rfind("-->", ElementContentBegin);
+
+	if ( (PrevCommentBegin == std::string::npos) ||
+	     (PrevCommentEnd < ElementContentBegin) ) {
+
+	    FoundElement = true;
+            break;                                                              // Not in comment; continue processing.
+
+	}
+
+	ElementContentBegin++;                                                  // In comment; continue search.
 
     }
 

CommonTests/TestUtility.cpp

 
     }
 
+    // Element in comment.
+    Content = "<!-- License file created by SNFIdentity\n"
+      "<TestElement TestAttribute =  \"testmode\" authentication='setuptestingonly'/>\n"
+      "-->\n"
+      "<snf>\n"
+      "<TestElement TestAttribute =  \"testmode\" authentication='setuptestingonly'/>\n"
+      "</snf>\n";
+    OriginalContent = Content;
+
+    ExpectedContent =  "<!-- License file created by SNFIdentity\n"
+      "<TestElement TestAttribute =  \"testmode\" authentication='setuptestingonly'/>\n"
+      "-->\n"
+      "<snf>\n"
+      "<TestElement TestAttribute =  \"NewValue\" authentication='setuptestingonly'/>\n"
+      "</snf>\n";
+
+    try {
+
+	Utility::ReplaceXmlAttribute(&Content, ElementName, AttributeName, AttributeNewValue);
+
+    } catch (std::exception &e) {
+	std::string Temp;
+
+	Temp = "TestReplaceXmlAttribute:  Unexpected exception thrown with valid input:  ";
+	Temp += e.what();
+	Temp += "\n\nOriginal Content:\n\n";
+	Temp += OriginalContent + "\n";
+	Error(Temp);
+	return false;
+
+    }
+
+    if (Content != ExpectedContent) {
+	std::string Temp;
+
+	Temp = "TestReplaceXmlAttribute:  Incorrect result with valid input.  Content after replacement:\n\n";
+	Temp += Content;
+	Temp += "\n\nExpected:\n\n";
+	Temp += ExpectedContent + "\n";
+	Error(Temp);
+	return false;
+
+    }
+
     // Test with invalid input.
     // Duplicate element.
     Content = "<!-- License file created by SNFIdentity-->\n"
 	return false;
 
     } catch (std::exception &e) {
-	std::cout << "Duplicate TestElement:  " << e.what() << "\n\n";
+
     }
 
     // Missing element.
 	return false;
 
     } catch (std::exception &e) {
-	std::cout << "Missing TestElement:  " << e.what() << "\n\n";
 
     }
 
 	return false;
 
     } catch (std::exception &e) {
-	std::cout << "No closing to TestElement:  " <<  e.what() << "\n\n";
 
     }
 
 	return false;
 
     } catch (std::exception &e) {
-	std::cout << "Duplicate attribute:  " << e.what() << "\n\n";
 
     }
 
 	return false;
 
     } catch (std::exception &e) {
-	std::cout << "TestAttribute in another element:  " << e.what() << "\n\n";
 
     }
 
 	return false;
 
     } catch (std::exception &e) {
-	std::cout << "Missing attribute:  " << e.what() << "\n\n";
 
     }
 
 	return false;
 
     } catch (std::exception &e) {
-	std::cout << "No closing to attribute:  " << e.what() << "\n\n";
 
     }