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-rw-r--r--Source/cmListCommand.cxx109
-rw-r--r--Source/cmListCommand.h6
2 files changed, 115 insertions, 0 deletions
diff --git a/Source/cmListCommand.cxx b/Source/cmListCommand.cxx
index 6041fb7..15a1af5 100644
--- a/Source/cmListCommand.cxx
+++ b/Source/cmListCommand.cxx
@@ -14,6 +14,7 @@
#include <cmsys/SystemTools.hxx>
#include "cmAlgorithms.h"
+#include <algorithm>
#include <stdlib.h> // required for atoi
#include <ctype.h>
#include <assert.h>
@@ -68,6 +69,10 @@ bool cmListCommand
{
return this->HandleReverseCommand(args);
}
+ if(subCommand == "FILTER")
+ {
+ return this->HandleFilterCommand(args);
+ }
std::string e = "does not recognize sub-command "+subCommand;
this->SetError(e);
@@ -517,3 +522,107 @@ bool cmListCommand::HandleRemoveAtCommand(
return true;
}
+//----------------------------------------------------------------------------
+bool cmListCommand::HandleFilterCommand(
+ std::vector<std::string> const& args)
+{
+ if(args.size() < 2)
+ {
+ this->SetError("sub-command FILTER requires a list to be specified.");
+ return false;
+ }
+
+ if(args.size() < 3)
+ {
+ this->SetError("sub-command FILTER requires an operator to be specified.");
+ return false;
+ }
+
+ if(args.size() < 4)
+ {
+ this->SetError("sub-command FILTER requires a mode to be specified.");
+ return false;
+ }
+
+ const std::string& listName = args[1];
+ // expand the variable
+ std::vector<std::string> varArgsExpanded;
+ if ( !this->GetList(varArgsExpanded, listName) )
+ {
+ this->SetError("sub-command FILTER requires list to be present.");
+ return false;
+ }
+
+ const std::string& op = args[2];
+ bool includeMatches;
+ if(op == "INCLUDE")
+ {
+ includeMatches = true;
+ }
+ else if(op == "EXCLUDE")
+ {
+ includeMatches = false;
+ }
+ else
+ {
+ this->SetError("sub-command FILTER does not recognize operator " + op);
+ return false;
+ }
+
+ const std::string& mode = args[3];
+ if(mode == "REGEX")
+ {
+ if(args.size() != 5)
+ {
+ this->SetError("sub-command FILTER, mode REGEX "
+ "requires five arguments.");
+ return false;
+ }
+ return this->FilterRegex(args, includeMatches, listName, varArgsExpanded);
+ }
+
+ this->SetError("sub-command FILTER does not recognize mode " + mode);
+ return false;
+}
+
+//----------------------------------------------------------------------------
+class MatchesRegex {
+public:
+ MatchesRegex(cmsys::RegularExpression& in_regex, bool in_includeMatches)
+ : regex(in_regex), includeMatches(in_includeMatches) {}
+
+ bool operator()(const std::string& target) {
+ return regex.find(target) ^ includeMatches;
+ }
+
+private:
+ cmsys::RegularExpression& regex;
+ const bool includeMatches;
+};
+
+bool cmListCommand::FilterRegex(std::vector<std::string> const& args,
+ bool includeMatches,
+ std::string const& listName,
+ std::vector<std::string>& varArgsExpanded)
+{
+ const std::string& pattern = args[4];
+ cmsys::RegularExpression regex(pattern);
+ if(!regex.is_valid())
+ {
+ std::string error = "sub-command FILTER, mode REGEX ";
+ error += "failed to compile regex \"";
+ error += pattern;
+ error += "\".";
+ this->SetError(error);
+ return false;
+ }
+
+ std::vector<std::string>::iterator argsBegin = varArgsExpanded.begin();
+ std::vector<std::string>::iterator argsEnd = varArgsExpanded.end();
+ std::vector<std::string>::iterator newArgsEnd =
+ std::remove_if(argsBegin, argsEnd, MatchesRegex(regex, includeMatches));
+
+ std::string value = cmJoin(cmMakeRange(argsBegin, newArgsEnd), ";");
+ this->Makefile->AddDefinition(listName, value.c_str());
+ return true;
+}
diff --git a/Source/cmListCommand.h b/Source/cmListCommand.h
index 5ea1d9f..25edee8 100644
--- a/Source/cmListCommand.h
+++ b/Source/cmListCommand.h
@@ -58,6 +58,12 @@ protected:
bool HandleRemoveDuplicatesCommand(std::vector<std::string> const& args);
bool HandleSortCommand(std::vector<std::string> const& args);
bool HandleReverseCommand(std::vector<std::string> const& args);
+ bool HandleFilterCommand(std::vector<std::string> const& args);
+ bool FilterRegex(std::vector<std::string> const& args,
+ bool includeMatches,
+ std::string const& listName,
+ std::vector<std::string>& varArgsExpanded
+ );
bool GetList(std::vector<std::string>& list, const std::string& var);