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// --------------------------------------------------------------------------
//
// File
// Name: ExcludeList.cpp
// Purpose: General purpose exclusion list
// Created: 28/1/04
//
// --------------------------------------------------------------------------
#include "Box.h"
#ifndef PLATFORM_REGEX_NOT_SUPPORTED
#include <regex.h>
#define EXCLUDELIST_IMPLEMENTATION_REGEX_T_DEFINED
#endif
#include "ExcludeList.h"
#include "Utils.h"
#include "Configuration.h"
#include "MemLeakFindOn.h"
// --------------------------------------------------------------------------
//
// Function
// Name: ExcludeList::ExcludeList()
// Purpose: Constructor. Generates an exclude list which will allow everything
// Created: 28/1/04
//
// --------------------------------------------------------------------------
ExcludeList::ExcludeList()
: mpAlwaysInclude(0)
{
}
// --------------------------------------------------------------------------
//
// Function
// Name: ExcludeList::~ExcludeList()
// Purpose: Destructor
// Created: 28/1/04
//
// --------------------------------------------------------------------------
ExcludeList::~ExcludeList()
{
#ifndef PLATFORM_REGEX_NOT_SUPPORTED
// free regex memory
while(mRegex.size() > 0)
{
regex_t *pregex = mRegex.back();
mRegex.pop_back();
// Free regex storage, and the structure itself
::regfree(pregex);
delete pregex;
}
#endif
// Clean up exceptions list
if(mpAlwaysInclude != 0)
{
delete mpAlwaysInclude;
mpAlwaysInclude = 0;
}
}
// --------------------------------------------------------------------------
//
// Function
// Name: ExcludeList::AddDefiniteEntries(const std::string &)
// Purpose: Adds a number of definite entries to the exclude list -- ones which
// will be excluded if and only if the test string matches exactly.
// Uses the Configuration classes' multi-value conventions, with
// multiple entires in one string separated by Configuration::MultiValueSeparator
// Created: 28/1/04
//
// --------------------------------------------------------------------------
void ExcludeList::AddDefiniteEntries(const std::string &rEntries)
{
// Split strings up
std::vector<std::string> ens;
SplitString(rEntries, Configuration::MultiValueSeparator, ens);
// Add to set of excluded strings
for(std::vector<std::string>::const_iterator i(ens.begin()); i != ens.end(); ++i)
{
if(i->size() > 0)
{
mDefinite.insert(*i);
}
}
}
// --------------------------------------------------------------------------
//
// Function
// Name: ExcludeList::AddRegexEntries(const std::string &)
// Purpose: Adds a number of regular expression entries to the exclude list --
// if the test expression matches any of these regex, it will be excluded.
// Uses the Configuration classes' multi-value conventions, with
// multiple entires in one string separated by Configuration::MultiValueSeparator
// Created: 28/1/04
//
// --------------------------------------------------------------------------
void ExcludeList::AddRegexEntries(const std::string &rEntries)
{
#ifndef PLATFORM_REGEX_NOT_SUPPORTED
// Split strings up
std::vector<std::string> ens;
SplitString(rEntries, Configuration::MultiValueSeparator, ens);
// Create and add new regular expressions
for(std::vector<std::string>::const_iterator i(ens.begin()); i != ens.end(); ++i)
{
if(i->size() > 0)
{
// Allocate memory
regex_t *pregex = new regex_t;
try
{
// Compile
if(::regcomp(pregex, i->c_str(), REG_EXTENDED | REG_NOSUB) != 0)
{
THROW_EXCEPTION(CommonException, BadRegularExpression)
}
// Store in list of regular expressions
mRegex.push_back(pregex);
}
catch(...)
{
delete pregex;
throw;
}
}
}
#else
THROW_EXCEPTION(CommonException, RegexNotSupportedOnThisPlatform)
#endif
}
// --------------------------------------------------------------------------
//
// Function
// Name: ExcludeList::IsExcluded(const std::string &)
// Purpose: Returns true if the entry should be excluded
// Created: 28/1/04
//
// --------------------------------------------------------------------------
bool ExcludeList::IsExcluded(const std::string &rTest) const
{
// Check against the always include list
if(mpAlwaysInclude != 0)
{
if(mpAlwaysInclude->IsExcluded(rTest))
{
// Because the "always include" list says it's 'excluded'
// this means it should actually be included.
return false;
}
}
// Is it in the set of definite entries?
if(mDefinite.find(rTest) != mDefinite.end())
{
return true;
}
// Check against regular expressions
#ifndef PLATFORM_REGEX_NOT_SUPPORTED
for(std::vector<regex_t *>::const_iterator i(mRegex.begin()); i != mRegex.end(); ++i)
{
// Test against this expression
if(regexec(*i, rTest.c_str(), 0, 0 /* no match information required */, 0 /* no flags */) == 0)
{
// match happened
return true;
}
// In all other cases, including an error, just continue to the next expression
}
#endif
return false;
}
// --------------------------------------------------------------------------
//
// Function
// Name: ExcludeList::SetAlwaysIncludeList(ExcludeList *)
// Purpose: Takes ownership of the list, deletes any pre-existing list.
// NULL is acceptable to delete the list.
// The AlwaysInclude list is a list of exceptions to the exclusions.
// Created: 19/2/04
//
// --------------------------------------------------------------------------
void ExcludeList::SetAlwaysIncludeList(ExcludeList *pAlwaysInclude)
{
// Delete old list
if(mpAlwaysInclude != 0)
{
delete mpAlwaysInclude;
mpAlwaysInclude = 0;
}
// Store the pointer
mpAlwaysInclude = pAlwaysInclude;
}
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