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- // configuration.cpp
- //
- // Copyright (C) 2004-2020 MicroNeil Research Corporation.
- //
- // This software is released under the MIT license. See LICENSE.TXT.
- //
- // Tools for efficiently parsing XML, usually in configuration files.
-
- #include "configuration.hpp"
-
- namespace codedweller {
-
- //// Configuration Element /////////////////////////////////////////////////////
-
- ConfigurationElement::ConfigurationElement(const char* Name) : // Construct with a cstring.
- myName(std::string(Name)),
- myParent(NULL),
- myLine(0),
- myIndex(0),
- myLength(0),
- myCleanFlag(true),
- myInitOnInterpretFlag(false) {
- }
-
- ConfigurationElement::ConfigurationElement(const std::string Name) : // Construct with a c++ string.
- myName(Name),
- myParent(NULL),
- myLine(0),
- myIndex(0),
- myLength(0),
- myCleanFlag(true),
- myInitOnInterpretFlag(false) {
- }
-
- ConfigurationElement::ConfigurationElement( // Construct sub element w/ cstring.
- const char* Name,
- ConfigurationElement& Parent) :
-
- myName(std::string(Name)),
- myParent(&Parent),
- myLine(0),
- myIndex(0),
- myLength(0),
- myCleanFlag(true),
- myInitOnInterpretFlag(false) {
- }
-
- ConfigurationElement::ConfigurationElement( // Construct sub element w/ string.
- const std::string Name,
- ConfigurationElement& Parent) :
-
- myName(Name),
- myParent(&Parent),
- myLine(0),
- myIndex(0),
- myLength(0),
- myCleanFlag(true),
- myInitOnInterpretFlag(false) {
- }
-
- std::string ConfigurationElement::Name() { return myName; } // Get the name of this element.
-
- ConfigurationElement& ConfigurationElement::Parent() { // Get the parrent of this element.
- if(NULL != myParent) { // If I have a parent
- return (*myParent); // then I dereference and return it.
- } // If I don't have a parent
- return (*this); // then I return myself.
- }
-
- ConfigurationElement& ConfigurationElement::Parent( // Set the parrent of this element.
- ConfigurationElement& Parent) { // Given this parent
- myParent = &Parent; // I take and store it's address
- return (*myParent); // then dereference and return it.
- }
-
- int ConfigurationElement::Line() { return myLine; } // Get the last line number.
-
- int ConfigurationElement::Index() { return myIndex; } // Get the last data position.
-
- int ConfigurationElement::Length() { return myLength; } // Get the last length.
-
- void ConfigurationElement::notifyDirty() { myCleanFlag = false; } // Attributes do this when they change.
-
- ConfigurationElement& ConfigurationElement::Element(const char* Name) { // Add a new sub element by c string name.
- return Element(std::string(Name)); // Use the string name version
- }
-
- ConfigurationElement& ConfigurationElement::Element(const std::string Name) { // Add a new sub element by c++ string name.
- ConfigurationElement* N = new ConfigurationElement( // Create a new Element with the
- Name, // name provided and
- (*this)); // myself as the parent.
-
- myElements.push_back(N); // Add it to the list.
- return (*N); // Return the new element.
- }
-
- ConfigurationElement& ConfigurationElement::Element( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- ConfigurationTranslator& newTranslator) { // Add a Translator to this element.
- return Element(std::string(Name), newTranslator); // Use the string name version
- }
-
- ConfigurationElement& ConfigurationElement::Element( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- std::string& x, std::string init) { // Map to a string.
- return Element(std::string(Name), x, init); // Use the string name version
- }
-
- ConfigurationElement& ConfigurationElement::Element( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- int& x, int init, int radix) { // Map to an int.
- return Element(std::string(Name), x, init, radix); // Use the string name version
- }
-
- ConfigurationElement& ConfigurationElement::Element( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- double& x, double init) { // Map to a double.
- return Element(std::string(Name), x, init); // Use the string name version
- }
-
- ConfigurationElement& ConfigurationElement::Element( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- bool& x, bool init) { // Map to a boolean.
- return Element(std::string(Name), x, init); // Use the string name version
- }
-
- ConfigurationElement& ConfigurationElement::End() { // Return this element's parent.
- return Parent(); // Borrow Parent()
- }
-
- ConfigurationElement& ConfigurationElement::End(const char* Name) { // Check the name and return the parent
- return End(std::string(Name)); // Borrow End(string)
- }
-
- ConfigurationElement& ConfigurationElement::End(const std::string Name) { // if the name is correct - or throw!
- if(0 != Name.compare(myName)) { // If Name is not myName
- throw EndNameDoesNotMatch(); // throw an exception!
- } // If the names match then
- return Parent(); // return the parent.
- }
-
- ConfigurationAttribute& ConfigurationElement::Attribute( // Add an attribute using a cstring.
- const char* Name) { // Given this cstring name
- return Attribute(std::string(Name)); // Convert it to a string and borrow
- } // Attribute(string)
-
- ConfigurationAttribute& ConfigurationElement::Attribute( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- ConfigurationTranslator& newTranslator) { // Add a Translator to this element.
- return Attribute(std::string(Name), newTranslator); // Borrow the string name version
- }
-
- ConfigurationAttribute& ConfigurationElement::Attribute( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- std::string& x, std::string init) { // Map to a string.
- return Attribute(std::string(Name), x, init); // Borrow the string name version
- }
-
- ConfigurationAttribute& ConfigurationElement::Attribute( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- int& x, int init, int radix) { // Map to an int.
- return Attribute(std::string(Name), x, init); // Borrow the string name version
- }
-
- ConfigurationAttribute& ConfigurationElement::Attribute( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- double& x, double init) { // Map to a double.
- return Attribute(std::string(Name), x, init); // Borrow the string name version
- }
-
- ConfigurationAttribute& ConfigurationElement::Attribute( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- bool& x, bool init) { // Map to a boolean.
- return Attribute(std::string(Name), x, init); // Borrow the string name version
- }
-
- ConfigurationElement& ConfigurationElement::setInitOnInterpret() { // Set the init on interpret flag.
- myInitOnInterpretFlag = true; // Set the flag.
- return(*this); // Dereference and return self.
- }
-
- ConfigurationElement& ConfigurationElement::atStartCall( // Add an atStart call-back.
- Configurator& Functor) { // Given this Functor,
- myStartConfigurators.push_back(&Functor); // add it to my atStart list then
- return(*this); // dereference and return myself.
- }
-
- ConfigurationElement& ConfigurationElement::atEndCall( // Add an atEnd call-back.
- Configurator& Functor) { // Given this Functor,
- myEndConfigurators.push_back(&Functor); // add it to my atEnd list then
- return(*this); // dereference and return myself.
- }
-
- ConfigurationElement& ConfigurationElement::Mnemonic( // Add a mnemonic using c strings.
- const char* name, const char* value) { // Given char* and char*
- return Mnemonic(std::string(name), std::string(value)); // make strings and borrow that method.
- }
-
- ConfigurationElement& ConfigurationElement::Mnemonic( // Add a mnemonic using mixed strings.
- const char* name, const std::string value) { // Given char* and string
- return Mnemonic(std::string(name), value); // make strings and borrow that method.
- }
-
- ConfigurationElement& ConfigurationElement::Mnemonic( // Add a mnemonic using mixed strings.
- const std::string name, const char* value) { // Given string and char*
- return Mnemonic(name, std::string(value)); // make strings and borrow that method.
- }
-
- ConfigurationElement& ConfigurationElement::Mnemonic( // Add a mnemonic using c++ strings.
- const std::string name, const std::string value) { // Givent string and string
- ConfigurationMnemonic* N = // Create a new Mnemonic
- new ConfigurationMnemonic(name, value); // using the values provided,
- myMnemonics.push_back(N); // add it to my list, then
- return(*this); // dereference and return myself.
- }
-
- //// Configuration Attribute ///////////////////////////////////////////////////
-
- ConfigurationAttribute::ConfigurationAttribute( // Attributes are constructed with a
- const char* Name, ConfigurationElement& Parent) : // Name and a Parent.
- myName(std::string(Name)), // We convert the name to a string.
- myParent(Parent), // We just grab the parent.
- myLine(0), // Everything else gets zeroed.
- myIndex(0),
- myLength(0) {
- }
-
- ConfigurationAttribute::ConfigurationAttribute( // Attributes are constrictued with a
- const std::string Name, ConfigurationElement& Parent) : // Name and a Parent.
- myName(Name), // We grab them and zero the rest.
- myParent(Parent),
- myLine(0),
- myIndex(0),
- myLength(0) {
- }
-
- std::string ConfigurationAttribute::Name() { // Get the name of this attribute.
- return myName;
- }
-
- ConfigurationElement& ConfigurationAttribute::Parent() { // Get the parent of this attribute.
- return myParent;
- }
-
- int ConfigurationAttribute::Line() { // Get the last line number.
- return myLine;
- }
-
- int ConfigurationAttribute::Index() { // Get the last data position.
- return myIndex;
- }
-
- int ConfigurationAttribute::Length() { // Get the last length.
- return myLength;
- }
-
- ConfigurationElement& ConfigurationAttribute::Element( // Add a new sub element by c string name.
- const char* Name) {
- return myParent.Element(Name);
- }
-
- ConfigurationElement& ConfigurationAttribute::Element( // Add a new sub element by c++ string name.
- const std::string Name) {
- return myParent.Element(Name);
- }
-
- ConfigurationElement& ConfigurationAttribute::Element( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- ConfigurationTranslator& newTranslator) { // Add a Translator to this element.
- return myParent.Element(Name, newTranslator);
- }
-
- ConfigurationElement& ConfigurationAttribute::Element( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- std::string& x, std::string init) { // Map to a string.
- return myParent.Element(Name, x, init);
- }
-
- ConfigurationElement& ConfigurationAttribute::Element( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- int& x, int init, int radix) { // Map to an int.
- return myParent.Element(Name, x, init, radix);
- }
-
- ConfigurationElement& ConfigurationAttribute::Element( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- double& x, double init) { // Map to a double.
- return myParent.Element(Name, x, init);
- }
-
- ConfigurationElement& ConfigurationAttribute::Element( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- bool& x, bool init) { // Map to a boolean.
- return myParent.Element(Name, x, init);
- }
-
- ConfigurationElement& ConfigurationAttribute::Element( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- ConfigurationTranslator& newTranslator) { // Add a Translator to this element.
- return myParent.Element(Name, newTranslator);
- }
-
- ConfigurationElement& ConfigurationAttribute::Element( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- std::string& x, std::string init) { // Map to a string.
- return myParent.Element(Name, x, init);
- }
-
- ConfigurationElement& ConfigurationAttribute::Element( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- int& x, int init, int radix) { // Map to an int.
- return myParent.Element(Name, x, init, radix);
- }
-
- ConfigurationElement& ConfigurationAttribute::Element( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- double& x, double init) { // Map to a double.
- return myParent.Element(Name, x, init);
- }
-
- ConfigurationElement& ConfigurationAttribute::Element( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- bool& x, bool init) { // Map to a boolean.
- return myParent.Element(Name, x, init);
- }
-
- ConfigurationElement& ConfigurationAttribute::End() { // Return this element's parent.
- return myParent.End();
- }
-
- ConfigurationElement& ConfigurationAttribute::End(const char* Name) { // Check the name and return the parent
- return myParent.End(Name);
- }
-
- ConfigurationElement& ConfigurationAttribute::End(const std::string Name) { // if the name is correct - or throw!
- return myParent.End(Name);
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Attribute( // Add an attribute using a cstring.
- const char* Name) {
- return myParent.Attribute(Name);
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Attribute( // Add an attribute using a c++ string.
- const std::string Name) {
- return myParent.Attribute(Name);
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Attribute( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- ConfigurationTranslator& newTranslator) { // Add a Translator to this element.
- return myParent.Attribute(Name, newTranslator);
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Attribute( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- std::string& x, std::string init) { // Map to a string.
- return myParent.Attribute(Name, x, init);
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Attribute( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- int& x, int init, int radix) { // Map to an int.
- return myParent.Attribute(Name, x, init, radix);
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Attribute( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- double& x, double init) { // Map to a double.
- return myParent.Attribute(Name, x, init);
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Attribute( // Mapping factory for convenience,
- const char* Name, // requires a name, of course,
- bool& x, bool init) { // Map to a boolean.
- return myParent.Attribute(Name, x, init);
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Attribute( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- ConfigurationTranslator& newTranslator) { // Add a Translator to this element.
- return myParent.Attribute(Name, newTranslator);
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Attribute( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- std::string& x, std::string init) { // Map to a string.
- return myParent.Attribute(Name, x, init);
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Attribute( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- int& x, int init, int radix) { // Map to an int.
- return myParent.Attribute(Name, x, init, radix);
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Attribute( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- double& x, double init) { // Map to a double.
- return myParent.Attribute(Name, x, init);
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Attribute( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- bool& x, bool init) { // Map to a boolean.
- return myParent.Attribute(Name, x, init);
- }
-
- ConfigurationElement& ConfigurationAttribute::setInitOnInterpret() { // Set the init on interpret flag.
- return myParent.setInitOnInterpret();
- }
-
- ConfigurationElement& ConfigurationAttribute::atStartCall( // Add an atStart call-back to this element.
- Configurator& Functor) {
- return myParent.atStartCall(Functor);
- }
-
- ConfigurationElement& ConfigurationAttribute::atEndCall( // Add an atEnd call-back to this element.
- Configurator& Functor) {
- return myParent.atEndCall(Functor);
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Mnemonic( // Add a mnemonic using c strings.
- const char* name, const char* value) { // Given char* and char*
- return Mnemonic(std::string(name), std::string(value)); // make strings and borrow that method.
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Mnemonic( // Add a mnemonic using mixed strings.
- const char* name, const std::string value) { // Given char* and string
- return Mnemonic(std::string(name), value); // make strings and borrow that method.
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Mnemonic( // Add a mnemonic using mixed strings.
- const std::string name, const char* value) { // Given string and char*
- return Mnemonic(name, std::string(value)); // make strings and borrow that method.
- }
-
- ConfigurationAttribute& ConfigurationAttribute::Mnemonic( // Add a mnemonic using c++ strings.
- const std::string name, const std::string value) { // Givent string and string
- ConfigurationMnemonic* N = // Create a new Mnemonic
- new ConfigurationMnemonic(name, value); // using the values provided,
- myMnemonics.push_back(N); // add it to my list, then
- return(*this); // dereference and return myself.
- }
-
- //// Configuration Data ////////////////////////////////////////////////////////
-
- char ConfigurationData::Data(int Index) { // Returns char from Data[Index]
- if(0 > Index || Index >= myBufferSize) { // Check that index is in range
- return 0; // and return 0 if it is not.
- } // If Index is within range then
- return myDataBuffer[Index]; // return the byte requested.
- }
-
- int ConfigurationData::Index() { // Reads the current Index.
- return myIndex;
- }
-
- int ConfigurationData::Index(int i) { // Changes the current Index.
- if(0 > i || i >= myBufferSize) { // If i is out of range then
- return myIndex; // return the current Index unchanged.
- } // If i is within range then
- myIndex = i; // change the Index to i and
- return myIndex; // return the changed Index.
- }
-
- int ConfigurationData::Line() { // Reads the current Line number.
- return myLine;
- }
-
- int ConfigurationData::addNewLines(int Count) { // Increments the Line number.
- myLine += Count; // Add the number of new lines.
- return myLine; // Return the current Line number.
- }
-
- //// Configuration Translator //////////////////////////////////////////////////
-
- StringTranslator::StringTranslator( // Construct this with
- std::string& Variable, // the variable to map,
- std::string Initializer) : // and the default value.
- myVariable(Variable),
- myInitializer(Initializer) {
- }
-
- void StringTranslator::translate(const char* Value) { // Provide a translation method.
- myVariable = std::string(Value); // String to String = simple copy.
- }
-
- void StringTranslator::initialize() { // Provide an initialization method.
- myVariable = myInitializer; // Revert to the initializer value.
- }
-
- IntegerTranslator::IntegerTranslator( // Construct this with
- int& Variable, // the variable to map,
- int Initializer, // and the default value.
- int Radix) : // For this one we also need a Radix.
- myVariable(Variable),
- myInitializer(Initializer),
- myRadix(Radix) {
- }
-
- void IntegerTranslator::translate(const char* Value) { // Provide a translation method.
- char* dummy; // Throw away ptr for strtol().
- myVariable = strtol(Value, &dummy, myRadix); // Convert the string w/ strtol().
- }
-
- void IntegerTranslator::initialize() { // Provide an initialization method.
- myVariable = myInitializer; // Revert to the initializer value.
- }
-
- DoubleTranslator::DoubleTranslator( // Construct this with
- double& Variable, // the variable to map,
- double Initializer) : // and the default value.
- myVariable(Variable),
- myInitializer(Initializer) {
- }
-
- void DoubleTranslator::translate(const char* Value) { // Provide a translation method.
- char* dummy; // Throw away ptr for strtod().
- myVariable = strtod(Value, &dummy); // Convert the string w/ strtod().
- }
-
- void DoubleTranslator::initialize() { // Provide an initialization method.
- myVariable = myInitializer; // Revert to the initializer value.
- }
-
- BoolTranslator::BoolTranslator( // Construct this with
- bool& Variable, // the variable to map,
- bool Initializer) : // and the default value.
- myVariable(Variable),
- myInitializer(Initializer) {
- }
-
- void BoolTranslator::translate(const char* Value) { // Provide a translation method.
- if(
- (0 == strcmp(Value,"on")) ||
- (0 == strcmp(Value,"true")) || // on, true, yes, and 1 are
- (0 == strcmp(Value, "yes")) || // interpreted as a boolean true.
- (0 == strcmp(Value, "1"))
- ) {
- myVariable = true;
- } else { // Anything else is interpreted as
- myVariable = false; // boolean false.
- }
- }
-
- void BoolTranslator::initialize() { // Provide an initialization method.
- myVariable = myInitializer; // Revert to the initializer value.
- }
-
- //// Configuration Mnemonic ////////////////////////////////////////////////////
-
- ConfigurationMnemonic::ConfigurationMnemonic( // To make one, provide both parts.
- std::string Name, std::string Value) :
- myName(Name),
- myValue(Value) {
- }
-
- bool ConfigurationMnemonic::test(std::string Name) { // Test to see if this Mnemonic matches.
- return (0 == Name.compare(myName)); // Return true if Name and myName match.
- }
-
- std::string ConfigurationMnemonic::Value() { // If it does then we will need it's value.
- return myValue;
- }
-
- //// Helper functions //////////////////////////////////////////////////////////
-
- // isNameChar(const char x)
- // true if the character can be used in a name.
-
- bool isNameChar(const char x) {
- return (
- isalnum(x) ||
- ('.' == x) ||
- ('-' == x) ||
- ('_' == x) ||
- (':' == x)
- );
- }
-
- // Eat Spaces and Count Lines
- // While we're parsing the configuration file there are times we will need to
- // skip some amount of whitespace. While doing that we need to keep track of
- // any new-lines we cross so that we always know what line number we are on.
- // This function makes that work a one-liner in our parsing routines.
-
- int eatSpacesCountLines(ConfigurationData& Data, int& Index) { // Eat spaces and count lines.
- int LineCount = 0; // Keep the line count here.
- char C = 0; // Keep the current character here.
-
- for(;;) { // We'll be looping like this...
- C = Data.Data(Index); // Grab the character at the Index.
- if(0 == C) { // If we have run out of data
- break; // then we are certainly done.
- }
- if(isspace(C)) { // If it is a whitespace
- if('\n' == C) { // check to see if it's a new line
- ++LineCount; // and count it if it is.
- } // Since it was a space in any case
- ++Index; // move the index past it.
- } else { // As soon as we hit something not
- break; // a whitespace we are done looping.
- }
- }
- return LineCount; // In the end return the line count.
- }
-
- // Eat NonTagText Count Lines
- // This is a variation on the Eat Spaces theme except that it is used in an
- // element to bypass any floating text or spaces that might be in the file. In
- // a perfect world such a thing would not exist -- but just in case it does we
- // want to handle it gracefully. This function will get us to the first < that
- // we can find - presumably the opening tag of an element.
-
- int eatNonTagTextCountLines(ConfigurationData& Data, int& Index) { // Eat "stuff" and count lines.
- int LineCount = 0; // Keep the line count here.
- char C = 0; // Keep the current character here.
-
- for(;;) { // We'll be looping like this...
- C = Data.Data(Index); // Grab the character at the Index.
- if(0 == C) { // If we have run out of data
- break; // then we are certainly done.
- }
- if('\n' == C) { // check to see if it's a new line
- ++LineCount; // and count it if it is.
- } else
- if('<' == C) { // When we find our < we're done!
- break;
- } // If C wasn't what we're after
- ++Index; // move the index past this byte.
- }
- return LineCount; // In the end return the line count.
- }
-
- // Eat Comments Count Lines
- // This is another variant of Eat Spaces. In this if we are on a <!-- tag
- // opening, then we will eat the rest of it through -->
-
- int eatCommentsCountLines(ConfigurationData& Data, int& Index) { // Eat any <!-- -->
- int LineCount = 0; // Keep the line count here.
- char C = 0; // Keep the current character here.
-
- // First - are we on a comment?
-
- if( // If the text at Index doesn't
- Data.Data(Index) != '<' || // look like the start of a
- Data.Data(Index + 1) != '!' || // comment then we are done.
- Data.Data(Index + 2) != '-' ||
- Data.Data(Index + 3) != '-'
- ) {
- return 0; // Return after no changes.
- }
-
- // Since we are on a comment, let's eat
-
- Index += 4; // Move past the comment start.
-
- for(;;) { // We'll be looping like this...
- C = Data.Data(Index); // Grab the character at the Index.
- if(0 == C) { // If we have run out of data
- break; // then we are certainly done.
- }
- if('\n' == C) { // check to see if it's a new line
- ++LineCount; // and count it if it is.
- } else
- if('-' == C) { // When we find a - we check for -->
- if(
- '-' == Data.Data(Index + 1) && // If we have found the end of our
- '>' == Data.Data(Index + 2) // comment then we are ready to
- ) { // stop.
- Index += 3; // Move the Index past the end
- break; // and break out of the loop.
- }
- } // If C wasn't what we're after
- ++Index; // move the index past this byte.
- }
- return LineCount; // In the end return the line count.
- }
-
- // Eat DocSpecs Count Lines
- // Another variation of Eat Spaces - this time to eat <? doc specs ?>
-
- int eatDocSpecsCountLines(ConfigurationData& Data, int& Index) { // Eat any <? ?>
- int LineCount = 0; // Keep the line count here.
- char C = 0; // Keep the current character here.
-
- // First - are we on a doc spec?
-
- if( // If the text at Index doesn't
- Data.Data(Index) != '<' || // look like the start of a
- Data.Data(Index + 1) != '?' // doc spec then we are done.
- ) {
- return 0; // Return after no changes.
- }
-
- // Since we are on a doc spec, let's eat
-
- for(;;) { // We'll be looping like this...
- C = Data.Data(Index); // Grab the character at the Index.
- if(0 == C) { // If we have run out of data
- break; // then we are certainly done.
- }
- if('\n' == C) { // check to see if it's a new line
- ++LineCount; // and count it if it is.
- } else
- if('?' == C) { // When we find a - we check for ?>
- if('>' == Data.Data(Index + 1)) { // If we foudn the end we're done!
- Index += 2; // Move the Index past the end
- break; // and break out of the loop.
- }
- } // If C wasn't what we're after
- ++Index; // move the index past this byte.
- }
- return LineCount; // In the end return the line count.
- }
-
- // Eat Attribute Count Lines
- // Another variation of Eat Spaces - this time to eat unknown attributes.
-
- int eatAttributeCountLines(ConfigurationData& Data, int& Index) { // Eat Attribute ( name='data' )
- int LineCount = 0; // Keep the line count here.
- char C = 0; // Keep the current character here.
-
- while(isNameChar(Data.Data(Index))) ++Index; // Eat through the name.
-
- LineCount += eatSpacesCountLines(Data, Index); // Eat any spaces.
-
- if('=' != Data.Data(Index)) { // We should have found our = sign.
- return LineCount; // If we did NOT then we're done.
- } else { // If we did, then we're still
- ++Index; // going - so move past it.
- }
-
- LineCount += eatSpacesCountLines(Data, Index); // Eat any extra spaces.
-
- C = Data.Data(Index); // Grab the next byte.
- if( // It should be either a
- '\'' != Data.Data(Index) && // single quote or a
- '\"' != Data.Data(Index) // double quote.
- ) { // If it is neither of these
- return LineCount; // then we are done.
- } else { // If it was a quote then
- ++Index; // get ready to go.
- }
-
- while(Data.Data(Index) != C) { // Carefully eat the data.
- if(0 == Data.Data(Index)) { // If we run out of Data
- return LineCount; // we are done.
- } else
- if('\n' == Data.Data(Index)) { // If we find a newline then
- ++LineCount; // we count it.
- }
- ++Index; // Whatever it is move past it.
- } // Once we've found our ending
- ++Index; // quote, we move past it and
- return LineCount; // return our Line count.
- }
-
- // Eat DocSpecs Count Lines
- // Another variation of Eat Spaces - this time to eat unknown elements.
-
- int eatElementCountLines(ConfigurationData& Data, int& Index) { // Eat Element ( <name>..</name> )
- int LineCount = 0; // Keep the line count here.
-
- // Are we on a tag?
-
- if( // If we are on an element tag then
- '<' != Data.Data(Index) || // it will start with a < followed by
- false == isNameChar(Data.Data(Index + 1)) // a name char (usually alpha).
- ) { // If that is not the case then
- return 0; // we are already done.
- }
-
- // Capture the tag name position.
-
- ++Index; // Move the Index to the start of the
- int NameIndex = Index; // name and record that spot.
-
- while(isNameChar(Data.Data(Index))) ++Index; // Move the Index past the name.
-
- int NameEndex = Index; // Record the end position.
-
- // Scan for the end of this tag.
-
- for(;;) { // We're looking for a > character.
- if(0 == Data.Data(Index)) { // If we run out of data
- return LineCount; // we are done.
- }
-
- LineCount += eatSpacesCountLines(Data, Index); // Eat any spaces.
-
- if( // Check for an empty element tag.
- '/' == Data.Data(Index) && // It will look like a /
- '>' == Data.Data(Index + 1) // followed by a >
- ) { // If this is an empty element
- Index += 2; // Move past it and return our
- return LineCount; // Line Count... consider it
- } // eaten.
-
- if('>' == Data.Data(Index)) { // If we come to an ordinary end
- ++Index; // of element start tag then move
- break; // past it and break out for the
- } // next phase.
-
- ++Index; // Just move past anything else.
- }
-
- // At this point we've passed the start tag for this element and
- // we know it's name. We also know the element is not empty so we'll
- // need to go inside it, eat those things, and look for it's end
- // tag.
-
- // Scan for the matching end tag and eat children.
-
- while( // Keep going until we get to
- '<' != Data.Data(Index) || // an end tag (starts with < followed
- '/' != Data.Data(Index + 1) // by a /). If we get to something that
- ) { // isn't a tag we're done anyway.
-
- int CheckIndex = Index; // Keep track of where we start.
-
- LineCount += eatNonTagTextCountLines(Data, Index); // Eat up to the next < we encounter.
- LineCount += eatElementCountLines(Data, Index); // Eat any elements we encounter.
- LineCount += eatCommentsCountLines(Data, Index); // Eat any comments we encounter.
- LineCount += eatDocSpecsCountLines(Data, Index); // Eat any doc specs we encounter.
-
- // If we stop moving break out!
-
- if(CheckIndex == Index) { // If we didn't move at all then
- break; // we need to break out. Could be
- } // out of data or just confused.
- };
-
- if( // If we find we are not even on
- '<' != Data.Data(Index) || // an end tag then we'll just quit
- '/' != Data.Data(Index + 1) // right now.
- ) {
- return LineCount; // Even so we return our line count.
- }
-
- // If we find an end tag - it had better be the one we want.
- // If it is not then we'll return with the index pointing at the
- // offending end tag so that parent instances will have a shot at it
- // and/or discover the problem.
-
- int t = 0; // t is for terminus, it stays in scope.
- for(t = 0; (NameIndex + t) < NameEndex; t++) { // Scan over the name and make sure
- if(Data.Data(NameIndex + t) != Data.Data(Index + 2 + t)) { // it matches character by character.
- return LineCount; // If any don't match, the end tag is
- } // wron so we return w/ Index pointing
- } // at the bad end tag.
-
- if('>' == Data.Data(Index + 2 + t)) { // If the name matched and the next
- Index += (3 + t); // character is our > then we move the
- } // Index past it - all is good.
- // If not then we leave the index.
- return LineCount; // Either way we return the Line Count.
- }
-
- // Copy Data and Count Lines
- // At some point in the parsing, we need to extract content from our Data
- // stream and convert it into a null terminated c string. While we're at it
- // we also need to keep track of any new-line characters we cross so we will
- // still know what line we're on. This function makes that task a one-liner.
-
- int copyDataCountLines(char* Bfr, ConfigurationData& Data, int Start, int End) {
- int Lines = 0; // Keep track of the lines we cross.
- int DataIndex = Start; // The Data index is separate from
- int BfrIndex = 0; // our Bfr index.
- char C = 0; // We will be looking at each character.
- while(DataIndex < End) { // While there's more segment to do...
- C = Data.Data(DataIndex); // Grab each byte.
- Bfr[BfrIndex] = C; // Copy it to our buffer.
- if('\n' == C) { // Check to see if it's a new-line
- ++Lines; // and count it if it is.
- }
- ++BfrIndex; // Move our buffer and our
- ++DataIndex; // data index pointers and
- } // keep on going.
- Bfr[BfrIndex] = 0; // At the end, null terminate.
- return Lines; // Return our line count.
- }
-
- //// Configuration Element /////////////////////////////////////////////////////
-
- ConfigurationElement::~ConfigurationElement() { // The descrutor clears and deletes all!
-
- // A configuration Element is "in charge of" or "owns" all of it's
- // down-stream components. So, when it is destroyed, it is responsible
- // for destroying all of those parts to prevent memory leaks.
-
- // Delete my attributes
-
- if(0 < myAttributes.size()) { // If we have attributes...
- std::list<ConfigurationAttribute*>::iterator iAttribute; // Iterate through our attributes list.
- iAttribute = myAttributes.begin(); // Start at the beginning and
- while(iAttribute != myAttributes.end()) { // loop through the whole list.
- delete (*iAttribute); // Delete each attribute
- iAttribute++; // then move the iterator.
- } // When we're done deleting them
- myAttributes.clear(); // clear the list.
- }
-
- // Delete my sub-elements
-
- if(0 < myElements.size()) { // If we have elements...
- std::list<ConfigurationElement*>::iterator iElement; // Iterate through our elements list.
- iElement = myElements.begin(); // Start at the beginning and
- while(iElement != myElements.end()) { // loop through the whole list.
- delete (*iElement); // Delete each element
- iElement++; // then move the iterator.
- } // When we're done deleting them
- myElements.clear(); // clear the list.
- }
-
- // Delete my mnemonics
-
- if(0 < myMnemonics.size()) { // If we have mnemonics...
- std::list<ConfigurationMnemonic*>::iterator iMnemonic; // Iterate through our mnemonics list.
- iMnemonic = myMnemonics.begin(); // Start at the beginning and
- while(iMnemonic != myMnemonics.end()) { // loop through the whole list.
- delete (*iMnemonic); // Delete each mnemonic
- iMnemonic++; // then move the iterator.
- } // When we're done deleting them
- myMnemonics.clear(); // clear the list.
- }
-
- // Delete my translators
-
- if(0 < myTranslators.size()) { // If we have translators...
- std::list<ConfigurationTranslator*>::iterator iTranslator; // Iterate through our translators list.
- iTranslator = myTranslators.begin(); // Start at the beginning and
- while(iTranslator != myTranslators.end()) { // loop through the whole list.
- delete (*iTranslator); // Delete each translator
- iTranslator++; // then move the iterator.
- } // When we're done deleting them
- myTranslators.clear(); // clear the list.
- }
-
- // zero things out
-
- myLine = 0; // If I'm going away then I will leave
- myIndex = 0; // with everything at zero and clean.
- myLength = 0;
- myCleanFlag = true;
-
- }
-
- ConfigurationElement& ConfigurationElement::Element( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- ConfigurationTranslator& newTranslator) { // Add a Translator to this element.
-
- ConfigurationElement* N = new ConfigurationElement( // Create a new Element with the
- Name, // name provided and
- (*this)); // myself as the parent.
-
- myElements.push_back(N); // Add it to the list.
- N->mapTo(newTranslator); // Map the translator to it.
- return (*N); // Return the new element.
- }
-
- ConfigurationElement& ConfigurationElement::Element( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- std::string& x, std::string init) { // Map to a string.
-
- ConfigurationElement* N = new ConfigurationElement( // Create a new Element with the
- Name, // name provided and
- (*this)); // myself as the parent.
-
- myElements.push_back(N); // Add it to the list.
- N->mapTo(x, init); // Map the variable into it.
- return (*N); // Return the new element.
- }
-
- ConfigurationElement& ConfigurationElement::Element( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- int& x, int init, int radix) { // Map to an int.
-
- ConfigurationElement* N = new ConfigurationElement( // Create a new Element with the
- Name, // name provided and
- (*this)); // myself as the parent.
-
- myElements.push_back(N); // Add it to the list.
- N->mapTo(x, init, radix); // Map the variable into it.
- return (*N); // Return the new element.
- }
-
- ConfigurationElement& ConfigurationElement::Element( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- double& x, double init) { // Map to a double.
-
- ConfigurationElement* N = new ConfigurationElement( // Create a new Element with the
- Name, // name provided and
- (*this)); // myself as the parent.
-
- myElements.push_back(N); // Add it to the list.
- N->mapTo(x, init); // Map the variable into it.
- return (*N); // Return the new element.
- }
-
- ConfigurationElement& ConfigurationElement::Element( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- bool& x, bool init) { // Map to a boolean.
-
- ConfigurationElement* N = new ConfigurationElement( // Create a new Element with the
- Name, // name provided and
- (*this)); // myself as the parent.
-
- myElements.push_back(N); // Add it to the list.
- N->mapTo(x, init); // Map the variable into it.
- return (*N); // Return the new element.
- }
-
- ConfigurationAttribute& ConfigurationElement::Attribute(const std::string Name) { // Add an attribute using a c++ string.
- ConfigurationAttribute* N = // Create a new attribute by name and
- new ConfigurationAttribute(Name, (*this)); // provide myself as the parent.
-
- myCleanFlag = false; // New attributes make us dirty.
-
- myAttributes.push_back(N); // Add the attribute to my list,
- return (*N); // dereference and return it.
- }
-
- ConfigurationAttribute& ConfigurationElement::Attribute( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- ConfigurationTranslator& newTranslator) { // Add a Translator to this element.
-
- myCleanFlag = false; // New attributes make us dirty.
-
- ConfigurationAttribute* N = // Create a new attribute by name and
- new ConfigurationAttribute(Name, (*this)); // provide myself as the parent.
-
- myAttributes.push_back(N); // Add the attribute to my list.
- N->mapTo(newTranslator); // Map in the provided translator.
- return(*N); // Dereference and return the attribute.
- }
-
- ConfigurationAttribute& ConfigurationElement::Attribute( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- std::string& x, std::string init) { // Map to a string.
-
- myCleanFlag = false; // New attributes make us dirty.
-
- ConfigurationAttribute* N = // Create a new attribute by name and
- new ConfigurationAttribute(Name, (*this)); // provide myself as the parent.
-
- myAttributes.push_back(N); // Add the attribute to my list.
- N->mapTo(x, init); // Map in the provided variable.
- return(*N); // Dereference and return the attribute.
- }
-
- ConfigurationAttribute& ConfigurationElement::Attribute( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- int& x, int init, int radix) { // Map to an int.
-
- myCleanFlag = false; // New attributes make us dirty.
-
- ConfigurationAttribute* N = // Create a new attribute by name and
- new ConfigurationAttribute(Name, (*this)); // provide myself as the parent.
-
- myAttributes.push_back(N); // Add the attribute to my list.
- N->mapTo(x, init, radix); // Map in the provided variable.
- return(*N); // Dereference and return the attribute.
- }
-
- ConfigurationAttribute& ConfigurationElement::Attribute( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- double& x, double init) { // Map to a double.
-
- myCleanFlag = false; // New attributes make us dirty.
-
- ConfigurationAttribute* N = // Create a new attribute by name and
- new ConfigurationAttribute(Name, (*this)); // provide myself as the parent.
-
- myAttributes.push_back(N); // Add the attribute to my list.
- N->mapTo(x, init); // Map in the provided variable.
- return(*N); // Dereference and return the attribute.
- }
-
- ConfigurationAttribute& ConfigurationElement::Attribute( // Mapping factory for convenience,
- const std::string Name, // requires a name, of course,
- bool& x, bool init) { // Map to a boolean.
-
- myCleanFlag = false; // New attributes make us dirty.
-
- ConfigurationAttribute* N = // Create a new attribute by name and
- new ConfigurationAttribute(Name, (*this)); // provide myself as the parent.
-
- myAttributes.push_back(N); // Add the attribute to my list.
- N->mapTo(x, init); // Map in the provided variable.
- return(*N); // Dereference and return the attribute.
- }
-
- ConfigurationElement& ConfigurationElement::mapTo( // Add a Translator to this element.
- ConfigurationTranslator& newTranslator) { // Given a new translator I can own,
- myTranslators.push_back(&newTranslator); // add the translator to my list
- myCleanFlag = false; // get dirty for the new translator
- return(*this); // then dereference and return myself.
- }
-
- ConfigurationElement& ConfigurationElement::mapTo( // Map to a string.
- std::string& x, std::string init) { // Given a string and init value,
- ConfigurationTranslator* N = // create a new translator for it
- new StringTranslator(x, init); // with the values i'm given,
- myTranslators.push_back(N); // push it onto my list, then
- myCleanFlag = false; // get dirty for the new translator
- return(*this); // then dereference and return myself.
- }
-
- ConfigurationElement& ConfigurationElement::mapTo( // Map to an int.
- int& x, int init, int radix) { // Given an int and init values,
- ConfigurationTranslator* N = // create a new translator for it
- new IntegerTranslator(x, init, radix); // with the values i'm given,
- myTranslators.push_back(N); // push it onto my list, then
- myCleanFlag = false; // get dirty for the new translator
- return(*this); // then dereference and return myself.
- }
-
- ConfigurationElement& ConfigurationElement::mapTo( // Map to a double.
- double& x, double init) { // Given a double and it's init value,
- ConfigurationTranslator* N = // create a new translator for it
- new DoubleTranslator(x, init); // with the values i'm given,
- myTranslators.push_back(N); // push it onto my list, then
- myCleanFlag = false; // get dirty for the new translator
- return(*this); // then dereference and return myself.
- }
-
- ConfigurationElement& ConfigurationElement::mapTo( // Map to a boolean.
- bool& x, bool init) { // Given a bool and it's init value,
- ConfigurationTranslator* N = // create a new translator for it
- new BoolTranslator(x, init); // with the values i'm given,
- myTranslators.push_back(N); // push it onto my list, then
- myCleanFlag = false; // get dirty for the new translator
- return(*this); // then dereference and return myself.
- }
-
- void ConfigurationElement::initialize() { // Reset all translators to defaults.
-
- // Initialize the elements below me
-
- if(0 < myElements.size()) { // If we have elements...
- std::list<ConfigurationElement*>::iterator iElement; // Iterate through our elements list.
- iElement = myElements.begin(); // Start at the beginning and
- while(iElement != myElements.end()) { // loop through the whole list.
- (*iElement)->initialize(); // Initialize each element
- iElement++; // then move the iterator.
- }
- }
-
- // Once that's done, see about myself
-
- if(true == myCleanFlag) return; // If I'm already clean, return.
-
- // Initialize my own translators
-
- if(0 < myTranslators.size()) { // If we have translators...
- std::list<ConfigurationTranslator*>::iterator iTranslator; // Iterate through our translators list.
- iTranslator = myTranslators.begin(); // Start at the beginning and
- while(iTranslator != myTranslators.end()) { // loop through the whole list.
- (*iTranslator)->initialize(); // Initialize each translator
- iTranslator++; // then move the iterator.
- }
- }
-
- // Initialize my own attributes
-
- if(0 < myAttributes.size()) { // If we have attributes...
- std::list<ConfigurationAttribute*>::iterator iAttribute; // Iterate through our attributes list.
- iAttribute = myAttributes.begin(); // Start at the beginning and
- while(iAttribute != myAttributes.end()) { // loop through the whole list.
- (*iAttribute)->initialize(); // Initialize each attribute
- ++iAttribute; // then move the iterator.
- }
- }
-
- // Zero things out
-
- myLine = 0; // Initialized means to be as if
- myIndex = 0; // no interpet() call has been made.
- myLength = 0;
-
- // At this point we know we are clean
-
- myCleanFlag = true; // Clean as a whistle!
-
- }
-
- void ConfigurationElement::runStartConfigurators(ConfigurationData& D) { // Does what it says ;-)
- std::list<Configurator*>::iterator iConfigurator; // Iterate through our Configurators list.
- iConfigurator = myStartConfigurators.begin(); // Start at the beginning and
- while(iConfigurator != myStartConfigurators.end()) { // loop through the whole list.
- (** iConfigurator)(*this, D); // Launch each configurator with self.
- ++iConfigurator; // Move to the next.
- }
- }
-
- void ConfigurationElement::runEndConfigurators(ConfigurationData& D) { // Does what it says ;-)
- std::list<Configurator*>::iterator iConfigurator; // Iterate through our Configurators list.
- iConfigurator = myEndConfigurators.begin(); // Start at the beginning and
- while(iConfigurator != myEndConfigurators.end()) { // loop through the whole list.
- (** iConfigurator)(*this, D); // Launch each configurator with self.
- ++iConfigurator; // Move to the next.
- }
- }
-
- bool ConfigurationElement::interpret(ConfigurationData& Data) { // (re) Interpret this data.
-
- int Index = Data.Index(); // Our working index.
- int Startdex = 0; // Where our data starts.
- int Stopdex = 0; // Where our data stops.
- int NewLines = 0; // Keep a count of new lines.
-
- //// Pre-Processing / Cleanup / Find <name...
- // Eat anything up to the first <
- // Eat any comments <!-- this is a comment etc -->
- // Eat any doctype headers <?xml version="1.0" etc ?>
-
- for(;;) {
- int StartingPoint = Index; // Where did we start each pass?
- NewLines += eatNonTagTextCountLines(Data, Index); // Eat any spaces we find.
- NewLines += eatCommentsCountLines(Data, Index); // Eat any <!-- -->
- NewLines += eatDocSpecsCountLines(Data, Index); // Eat any <? ?>
- if(StartingPoint == Index) { break; } // If we didn't move on this pass
- } // then we are done with cleanup!
-
- // Update Data to move past any of the preceeding junk. This way, other
- // element processors will be able to skip any cleanup work we did.
-
- Data.Index(Index); // Move the Index.
- Data.addNewLines(NewLines); // Update the Line Number.
- NewLines = 0; // Reset our internal Lines counter.
-
- // Find my name.
-
- if(Data.Data(Index) != '<') { // If we're not on a tag open then
- return false; // we are not at an element.
- } else { // Otherwise we are safe to move
- ++Index; // past it and scan for our name.
- }
-
- for(unsigned int I = 0; I < myName.length(); I++) { // For the length of our name,
- char x = Data.Data(Index + I); // get each corresponding Data byte
- if(x != myName.at(I)) { // check it sudden death style.
- return false; // No-Match means we are not it.
- }
- } // If the name checks out then
- Index += myName.length(); // move the Index past our name.
-
- // At this point we have found ourselves so we will activate and interpret
- // our Data.
-
- if(true == myInitOnInterpretFlag) { // If we are supposed to Init before
- initialize(); // we Interpret then do it.
- }
-
- // Since we are activating we must set our state so we know where we are.
-
- myLine = Data.Line(); // We know where we start...
- myIndex = Data.Index(); // We know our index...
- myLength = 0; // We don't know our length yet.
-
- runStartConfigurators(Data); // Run the start configurators.
-
- myCleanFlag = false; // Now we start to get dirty.
-
- // First, we will run through any attributes we have.
-
- bool ThisIsAnEmptyElement = false; // We'll use this to signal empties.
-
- for(;;) { // This is how we roll..
-
- NewLines += eatSpacesCountLines(Data, Index); // Eat any spaces we find.
- Data.Index(Index); // Move the Index.
- Data.addNewLines(NewLines); // Update the Line Number.
- NewLines = 0; // Reset our internal Lines counter.
-
- // Now we look at the next character. Either it's an attribute, or
- // it's the end of the tag, or it's some kind of junk. If it's junk
- // we will skip it. We will continue parsing until we get to the end
- // of the Data or the end of the opening tag (either stopping at / if
- // the element is empty or > if the element is not empty.
-
- if(isalpha(Data.Data(Index))) { // If it looks like an attribute...
- bool ParseHappened = false; // Start pessimistically at each pass.
- std::list<ConfigurationAttribute*>::iterator iAttribute; // Iterate through our attributes list.
- iAttribute = myAttributes.begin(); // Start at the beginning and
- while(iAttribute != myAttributes.end()) { // loop through the whole list.
- ParseHappened = (* iAttribute)->interpret(Data); // Have each attribute interpret(Data)
- ++iAttribute; // Remember to move to the next one.
- if(ParseHappened) break; // If a Parse Happened, break the inner
- } // loop and start the next pass.
- if(false == ParseHappened) { // If we didn't recognize the attribute
- NewLines += eatAttributeCountLines(Data, Index); // then eat it.
- Data.Index(Index); // Sync up our Index.
- Data.addNewLines(NewLines); // Sync up our NewLines.
- NewLines = 0; // Zero our NewLines count.
- } else { // If we DID recognize the attribute then
- Index = Data.Index(); // sync up our Index for the next one.
- }
- } else
- if(0 == Data.Data(Index)) { // If it looks like the end of Data
- break; // we will break out - we're done.
- } else
- if( // If it looks like the end of an empty
- '/' == Data.Data(Index) && // element (starts with / and ends with
- '>' == Data.Data(Index + 1) // >) then this must be an empty element.
- ) {
- ThisIsAnEmptyElement = true; // Set the empty element flag and
- Index += 2; // Move past the end of the tag and
- break; // break out of the loop.
- } else
- if('>' == Data.Data(Index)) { // If it looks like the end of an open
- Index += 1; // tag then move past the end and
- break; // break out of the loop.
-
- } else { // If it looks like anything else then
- ++Index; // we don't know what it is so we creep
- } // past it.
- }
-
- Data.Index(Index); // Sync up our index
-
- // At this point we're done processing our open tag and any attributes it
- // may have contained, and we are syncrhonized with Data.
-
- if(ThisIsAnEmptyElement) { // If the element was self closing then
- runEndConfigurators(Data); // run the End Configurators and return
- return true; // true to the caller.
- }
-
- // At this point we have contents and/or elements to process. We will keep
- // track of any contents using Startdex and Stopdex.
-
- Startdex = Index;
-
- // Now we will process through any elements there may be until we reach
- // our end tag. If we have no sub-elements listed, we'll simply skip that
- // step on each pass... So, we roll like this:
- // Check for end of Data.
- // Check for our end tag.
- // Check for a sub-element.
- // If none of these work then break out.
-
- for(;;) { // Loop through our content like this.
-
- int CheckPoint = Index; // Where did we start each pass?
-
- // Check for end of data //
-
- if(0 == Data.Data(Index)) { // If we are at end of data then we're
- return false; // broken so we return false.
- } else
-
- // Check for our own end tag //
-
- if( // If this looks like an end tag
- '<' == Data.Data(Index) && // (Starts with < followed by
- '/' == Data.Data(Index + 1) // a / character)
- ) { // Then it _should_ be our own.
- Stopdex = Index; // Capture this position for content.
- Index += 2; // Move Index to where the name starts.
- for(unsigned int I = 0; I < myName.length(); I++) { // For the length of the name,
- char x = Data.Data(Index + I); // check each corresponding Data byte.
- if(x != myName.at(I)) { // If we fail to match at any point
- return false; // then things are very broken
- } // so we return false.
- } // If the name checks out then
- Index += myName.length(); // move past our name.
- if('>' != Data.Data(Index)) { // Being very strict, if the next
- return false; // byte is not > then fail!
- } else { // If all goes well then we move
- ++Index; // past the > and we are done.
- break; // Break to move to the next step.
- }
- } else
-
- // Check for a subordinate element //
-
- if( // If this looks like an element
- '<' == Data.Data(Index) && // starting with < and a name
- isalpha(Data.Data(Index + 1)) // beginning with an alpha character...
- ) {
- bool ElementHappened = false; // We'll check our elements.
- Data.Index(Index); // Sync our index.
- Data.addNewLines(NewLines); // Sync our lines.
- NewLines = 0; // Reset our new lines count.
- if(0 < myElements.size()) { // If we have elements check them.
-
- std::list<ConfigurationElement*>::iterator iElement; // Iterate through our elements list.
- iElement = myElements.begin(); // Start at the beginning and
- while(iElement != myElements.end()) { // loop through the whole list.
- ConfigurationElement& doNode = **iElement; // Grab the element we're on.
- ElementHappened = doNode.interpret(Data); // Have each element interpret(Data)
- Index = Data.Index(); // Capitalze on any cleanup work.
- ++iElement; // Remember to move to the next.
- if(ElementHappened) break; // If an Element Happened, break the
- } // loop and start the next pass.
- if(false == ElementHappened) { // If we did not recognize the Element
- NewLines += eatElementCountLines(Data, Index); // then eat it *****
- Data.Index(Index); // Resync our Index.
- Data.addNewLines(NewLines); // Sync our line count.
- NewLines = 0; // Reset our internal count.
- }
- } else { // If we don't own any elements then
- NewLines += eatElementCountLines(Data, Index); // eat the ones we find.
- }
-
- // Handle any untidy messes here //
-
- } else { // If we're on something unknown then
- NewLines += eatSpacesCountLines(Data, Index); // Eat any spaces we find.
- NewLines += eatCommentsCountLines(Data, Index); // Eat any <!-- -->
- NewLines += eatDocSpecsCountLines(Data, Index); // Eat any <? ?>
- NewLines += eatNonTagTextCountLines(Data, Index); // Eat any non tag bytes.
- Data.Index(Index); // Sync our Index.
- Data.addNewLines(NewLines); // Sync our line number.
- NewLines = 0; // Clear our lines count.
- }
-
- // If we get stuck looping on something we don't know how to clean
- // and don't know how to interpret then we need to break out of the
- // insanity. This way, anything that doesn't make sense won't be able
- // to stall us or cause us to interpret something incorrectly later
- // on... If we're the top element, the interpret() process will end.
- // If we are deeper then it is likely our superirors will also not
- // understand and so they will also end the same way.
-
- if(CheckPoint == Index) return false; // If we haven't moved, punt!
- }
-
- // When we're done with our loop sync up with Data again.
-
- Data.Index(Index); // Sync up our Index.
- Data.addNewLines(NewLines); // Sync up our NewLines count.
- NewLines = 0; // zero our local count.
-
- // Once our elements have been procssed and we get to our end tag we can
- // process our content (if we have Translators registered).
-
- if(
- 0 < myTranslators.size() && // If we have translators and
- Stopdex > Startdex // we have content to translate
- ) { // then translate the content!
- // Create the Content buffer...
-
- int BfrSize = Stopdex - Startdex +1; // How big a buffer do we need?
- std::vector<char> heapBfr(BfrSize,0); // Make one that size.
- char* Bfr = &heapBfr[0];
-
- copyDataCountLines(Bfr, Data, Startdex, Stopdex); // Get our data and ignore our lines.
-
- // Now we can get on with translation.
-
- char* TranslationData = Bfr; // TranslationData is what we translate.
-
- // Translate our data by Mnemonic
-
- if(0 < myMnemonics.size()) { // If we have mnemonics...
- std::list<ConfigurationMnemonic*>::iterator iMnemonic; // Iterate through our mnemonics list.
- iMnemonic = myMnemonics.begin(); // Start at the beginning and
- while(iMnemonic != myMnemonics.end()) { // loop through the whole list.
- if(true == ((*iMnemonic)->test(TranslationData))) { // Check to see if the mnemonic matches.
- TranslationData = const_cast<char*>( // If it does match, substitute it's
- (*iMnemonic)->Value().c_str()); // value for translation and stop
- break; // looking.
- } else { // If it does not match, move to the
- ++iMnemonic; // next mnemonic and test again.
- } // That is, until we run out of
- } // mnemonics to test.
- }
-
- // Put our TranslationData through each Translator.
-
- std::list<ConfigurationTranslator*>::iterator iTranslator; // Iterate through our translators list.
- iTranslator = myTranslators.begin(); // Start at the beginning and
- while(iTranslator != myTranslators.end()) { // loop through the whole list.
- (*iTranslator)->translate(TranslationData); // Pass the data to each one then
- ++iTranslator; // move on to the next.
- }
- }
-
- // And finally, after all is done successfully...
-
- runEndConfigurators(Data); // Launch the End Configurators.
- return true; // Return our success!
- }
-
- //// Configuration Attribute ///////////////////////////////////////////////////
-
- ConfigurationAttribute::~ConfigurationAttribute() { // Crush, Kill, Destroy!
-
- // Delete my mnemonics
-
- if(0 < myMnemonics.size()) { // If we have mnemonics...
- std::list<ConfigurationMnemonic*>::iterator iMnemonic; // Iterate through our mnemonics list.
- iMnemonic = myMnemonics.begin(); // Start at the beginning and
- while(iMnemonic != myMnemonics.end()) { // loop through the whole list.
- delete (*iMnemonic); // Delete each mnemonic
- iMnemonic++; // then move the iterator.
- } // When we're done deleting them
- myMnemonics.clear(); // clear the list.
- }
-
- // Delete my translators
-
- if(0 < myTranslators.size()) { // If we have translators...
- std::list<ConfigurationTranslator*>::iterator iTranslator; // Iterate through our translators list.
- iTranslator = myTranslators.begin(); // Start at the beginning and
- while(iTranslator != myTranslators.end()) { // loop through the whole list.
- delete (*iTranslator); // Delete each translator
- iTranslator++; // then move the iterator.
- } // When we're done deleting them
- myTranslators.clear(); // clear the list.
- }
-
- // zero things out
-
- myLine = 0; // If I'm going away then I will leave
- myIndex = 0; // with everything at zero and clean.
- myLength = 0;
- }
-
- ConfigurationAttribute& ConfigurationAttribute::mapTo( // Add a Translator to this attribute.
- ConfigurationTranslator& newTranslator) { // Given a new translator I can own,
- myTranslators.push_back(&newTranslator); // add the translator to my list
- myParent.notifyDirty(); // get dirty for the new translator
- return(*this); // then dereference and return myself.
- }
-
- ConfigurationAttribute& ConfigurationAttribute::mapTo( // Map to a string.
- std::string& x, std::string init) { // Given a string and init value,
- ConfigurationTranslator* N = // create a new translator for it
- new StringTranslator(x, init); // with the values i'm given,
- myTranslators.push_back(N); // push it onto my list, then
- myParent.notifyDirty(); // get dirty for the new translator
- return(*this); // dereference and return myself.
- }
-
- ConfigurationAttribute& ConfigurationAttribute::mapTo( // Map to an int.
- int& x, int init, int radix) { // Given an int and init values,
- ConfigurationTranslator* N = // create a new translator for it
- new IntegerTranslator(x, init, radix); // with the values i'm given,
- myTranslators.push_back(N); // push it onto my list, then
- myParent.notifyDirty(); // get dirty for the new translator
- return(*this); // dereference and return myself.
- }
-
- ConfigurationAttribute& ConfigurationAttribute::mapTo( // Map to a double.
- double& x, double init) { // Given a double and it's init value,
- ConfigurationTranslator* N = // create a new translator for it
- new DoubleTranslator(x, init); // with the values i'm given,
- myTranslators.push_back(N); // push it onto my list, then
- myParent.notifyDirty(); // get dirty for the new translator
- return(*this); // then dereference and return myself.
- }
-
- ConfigurationAttribute& ConfigurationAttribute::mapTo( // Map to a boolean.
- bool& x, bool init) { // Given a bool and it's init value,
- ConfigurationTranslator* N = // create a new translator for it
- new BoolTranslator(x, init); // with the values i'm given,
- myTranslators.push_back(N); // push it onto my list, then
- myParent.notifyDirty(); // get dirty for the new translator
- return(*this); // then dereference and return myself.
- }
-
- void ConfigurationAttribute::initialize() { // Reset all translators to defaults.
-
- if(0 < myTranslators.size()) { // If we have translators...
- std::list<ConfigurationTranslator*>::iterator iTranslator; // Iterate through our translators list.
- iTranslator = myTranslators.begin(); // Start at the beginning and
- while(iTranslator != myTranslators.end()) { // loop through the whole list.
- (*iTranslator)->initialize(); // initialize each translator
- iTranslator++; // then move the iterator.
- } // When we're done deleting them
- }
-
- // zero things out
-
- myLine = 0; // Initialized means to be as if
- myIndex = 0; // no interpet() call has been made.
- myLength = 0;
- }
-
- bool ConfigurationAttribute::interpret(ConfigurationData& Data) { // (re) Interpret this data.
-
- int Index = Data.Index(); // Our working index.
- int Startdex = 0; // Where our data starts.
- int Stopdex = 0; // Where our data stops.
- int NewLines = 0; // Keep a count of new lines.
-
- // Find our name.
-
- for(unsigned int I = 0; I < myName.length(); I++) { // For the length of the name,
- char x = Data.Data(Index + I); // get each corresponding Data byte
- if(x != myName.at(I)) { // check it sudden death style.
- return false; // No-Match means we are not it.
- }
- } // If the name checks out then
- Index += myName.length(); // move the Index past our name.
-
- NewLines += eatSpacesCountLines(Data, Index); // Eat any spaces we find.
-
- // Find our = sign.
-
- if('=' != Data.Data(Index)) { // Next we should see an =
- return false; // If we don't we're done.
- } else { // If we do then we can
- ++Index; // move past it.
- }
-
- NewLines += eatSpacesCountLines(Data, Index); // Eat any spaces we find.
-
- // Find our first quote character.
-
- char QuoteCharacter = 0;
- if('\'' == Data.Data(Index) || '\"' == Data.Data(Index)) { // Next we should find ' or "
- QuoteCharacter = Data.Data(Index); // If we found it record it then
- ++Index; Startdex = Index; // move to and record our start of data.
- } else { // If we don't
- return false; // we are done.
- }
-
- // Find our last quote character.
-
- for(;;) { // Here is how we will roll...
- char C = Data.Data(Index); // Grab the character at Index.
- if(0 == C) { // If we run out of Data then
- return false; // We didn't find anything.
- }
- if(QuoteCharacter == C) { // If we find our QuoteCharacter
- Stopdex = Index; // we have our Stopdex and
- break; // we can stop the loop.
- }
- ++Index; // Otherwise keep on looking.
- }
-
- // Read our data.
-
- int BfrSize = Stopdex - Startdex +1; // How big a buffer do we need?
- std::vector<char> heapBfr(BfrSize,0); // Make one that size.
- char* Bfr = &heapBfr[0];
-
- NewLines += copyDataCountLines(Bfr, Data, Startdex, Stopdex); // Get our data and count our lines.
-
- // Now we can get on with translation.
-
- char* TranslationData = Bfr; // TranslationData is what we translate.
-
- // Translate our data by Mnemonic
-
- if(0 < myMnemonics.size()) { // If we have mnemonics...
- std::list<ConfigurationMnemonic*>::iterator iMnemonic; // Iterate through our mnemonics list.
- iMnemonic = myMnemonics.begin(); // Start at the beginning and
- while(iMnemonic != myMnemonics.end()) { // loop through the whole list.
- if(true == ((*iMnemonic)->test(TranslationData))){ // Check to see if the mnemonic matches.
- TranslationData = const_cast<char*>( // If it does match, substitute it's
- (*iMnemonic)->Value().c_str()); // value for translation and stop
- break; // looking.
- } else { // If it does not match, move to the
- ++iMnemonic; // next mnemonic and test again.
- } // That is, until we run out of
- } // mnemonics to test.
- }
-
- // Put our TranslationData through each Translator.
-
- if(0 < myTranslators.size()) { // We'd better have translators!
- std::list<ConfigurationTranslator*>::iterator iTranslator; // Iterate through our translators list.
- iTranslator = myTranslators.begin(); // Start at the beginning and
- while(iTranslator != myTranslators.end()) { // loop through the whole list.
- (*iTranslator)->translate(TranslationData); // Pass the data to each one and
- ++iTranslator; // move on to the next one.
- }
- }
-
- // Capture our position data.
-
- myLine = Data.Line(); // Capture the line I was on.
- myIndex = Data.Index(); // Capture the Index where I started.
- myLength = Stopdex + 1 - myIndex; // Capture my segment length.
-
- // Update Data for the next segment.
-
- Data.Index(Stopdex + 1); // Move the Index.
- Data.addNewLines(NewLines); // Update the Line Number.
-
- return true; // If we got here, we succeeded!
- }
-
- //// Configuratino Data ////////////////////////////////////////////////////////
-
- char* newCStringBuffer(size_t requestedSize) {
- const char NullTerminator = 0;
- size_t safeSize = requestedSize + 1;
- char* theBufferPointer = new char[safeSize];
- theBufferPointer[requestedSize] = NullTerminator;
- return theBufferPointer;
- }
-
- ConfigurationData::ConfigurationData(const char* Data, int Length) : // Raw constructor from buffer.
- myBufferSize(Length), // and it's length.
- myIndex(0), // Our Index is zero
- myLine(1) { // We start on line 1
- myDataBuffer = newCStringBuffer(myBufferSize); // Allocate a buffer.
- memcpy(myDataBuffer, Data, myBufferSize); // Copy the data.
- }
-
- ConfigurationData::ConfigurationData(const char* FileName) :
- myDataBuffer(NULL), // No data buffer yet.
- myBufferSize(0), // No length yet.
- myIndex(0), // Our Index is zero
- myLine(1) { // We start on line 1
- try { // Capture any throws.
- std::ifstream CFGFile(FileName); // Open the file.
- CFGFile.seekg(0,std::ios::end); // Seek to the end
- myBufferSize = CFGFile.tellg(); // to find out what size it is.
- myDataBuffer = newCStringBuffer(myBufferSize); // Make a new buffer the right size.
- CFGFile.seekg(0,std::ios::beg); // Seek to the beginning and
- CFGFile.read(myDataBuffer, myBufferSize); // read the file into the buffer.
- if(CFGFile.bad()) { // If the read failed, we're unusable!
- delete[] myDataBuffer; // Delete the buffer
- myDataBuffer = NULL; // and Null it's pointer.
- myBufferSize = 0; // Set the length to zero.
- } // Usually everything will work
- CFGFile.close(); // At the end, always close our file.
- } catch (...) { // If something went wrong clean up.
- if(NULL != myDataBuffer) { // If the data buffer was allocated
- delete[] myDataBuffer; // Delete the buffer
- myDataBuffer = NULL; // and Null it's pointer.
- }
- myBufferSize = 0; // The BufferSize will be zero
- } // indicating there is no Data.
- }
-
- ConfigurationData::ConfigurationData(const std::string FileName) : // Raw constructor from file.
- myDataBuffer(NULL), // No data buffer yet.
- myBufferSize(0), // No length yet.
- myIndex(0), // Our Index is zero
- myLine(1) { // We start on line 1
- try { // Capture any throws.
- std::ifstream CFGFile(FileName.c_str()); // Open the file.
- CFGFile.seekg(0,std::ios::end); // Seek to the end
- myBufferSize = CFGFile.tellg(); // to find out what size it is.
- myDataBuffer = newCStringBuffer(myBufferSize); // Make a new buffer the right size.
- CFGFile.seekg(0,std::ios::beg); // Seek to the beginning and
- CFGFile.read(myDataBuffer, myBufferSize); // read the file into the buffer.
- if(CFGFile.bad()) { // If the read failed, we're unusable!
- delete[] myDataBuffer; // Delete the buffer
- myDataBuffer = NULL; // and Null it's pointer.
- myBufferSize = 0; // Set the length to zero.
- } // Usually everything will work
- CFGFile.close(); // At the end, always close our file.
- } catch (...) { // If something went wrong clean up.
- if(NULL != myDataBuffer) { // If the data buffer was allocated
- delete[] myDataBuffer; // Delete the buffer
- myDataBuffer = NULL; // and Null it's pointer.
- }
- myBufferSize = 0; // The BufferSize will be zero
- } // indicating there is no Data.
- }
-
- ConfigurationData::~ConfigurationData() { // Destroys the internal buffer etc.
- if(NULL != myDataBuffer) { // If we have allocated a buffer,
- delete[] myDataBuffer; // delete that buffer
- myDataBuffer = NULL; // and null the pointer.
- }
- myBufferSize = 0; // Zero everything for safety.
- myIndex = 0;
- myLine = 0;
- }
-
- //// Utilities /////////////////////////////////////////////////////////////////
-
- // SetTrueOnComplete Configurator //////////////////////////////////////////////
-
- ConfiguratorSetTrueOnComplete::ConfiguratorSetTrueOnComplete() : // Constructor ensures the pointer
- myBoolean(NULL) { // is NULL for safety.
- }
-
- void ConfiguratorSetTrueOnComplete::setup(bool& Target) { // The setup() method links us to a
- myBoolean = &Target; // target boolean.
- }
-
- void ConfiguratorSetTrueOnComplete::operator()( // The operator()
- ConfigurationElement& E, ConfigurationData& D) { // When activated, this fellow
- if(NULL != myBoolean) { // checks it's pointer for safety
- *myBoolean = true; // and if ok, sets the target to
- } // true.
- }
-
- } // End namespace codedweller
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