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-rw-r--r--apt-pkg/contrib/configuration.cc43
-rw-r--r--apt-pkg/contrib/configuration.h19
2 files changed, 61 insertions, 1 deletions
diff --git a/apt-pkg/contrib/configuration.cc b/apt-pkg/contrib/configuration.cc
index 9129d92f0..81cc87d15 100644
--- a/apt-pkg/contrib/configuration.cc
+++ b/apt-pkg/contrib/configuration.cc
@@ -843,3 +843,46 @@ bool ReadConfigDir(Configuration &Conf,const string &Dir,
return true;
}
/*}}}*/
+// MatchAgainstConfig Constructor /*{{{*/
+Configuration::MatchAgainstConfig::MatchAgainstConfig(char const * Config)
+{
+ std::vector<std::string> const strings = _config->FindVector(Config);
+ for (std::vector<std::string>::const_iterator s = strings.begin();
+ s != strings.end(); ++s)
+ {
+ regex_t *p = new regex_t;
+ if (regcomp(p, s->c_str(), REG_EXTENDED | REG_ICASE | REG_NOSUB) == 0)
+ patterns.push_back(p);
+ else
+ {
+ regfree(p);
+ delete p;
+ _error->Warning("Regex compilation error for '%s' in configuration option '%s'",
+ s->c_str(), Config);
+ }
+ }
+
+}
+ /*}}}*/
+// MatchAgainstConfig Destructor /*{{{*/
+Configuration::MatchAgainstConfig::~MatchAgainstConfig()
+{
+ for(std::vector<regex_t *>::const_iterator p = patterns.begin();
+ p != patterns.end(); ++p)
+ {
+ regfree(*p);
+ delete *p;
+ }
+}
+ /*}}}*/
+// MatchAgainstConfig::Match - returns true if a pattern matches /*{{{*/
+bool Configuration::MatchAgainstConfig::Match(char const * str) const
+{
+ for(std::vector<regex_t *>::const_iterator p = patterns.begin();
+ p != patterns.end(); ++p)
+ if (regexec(*p, str, 0, 0, 0) == 0)
+ return true;
+
+ return false;
+}
+ /*}}}*/
diff --git a/apt-pkg/contrib/configuration.h b/apt-pkg/contrib/configuration.h
index 2494c1d7c..cbe18e4e5 100644
--- a/apt-pkg/contrib/configuration.h
+++ b/apt-pkg/contrib/configuration.h
@@ -28,7 +28,7 @@
#ifndef PKGLIB_CONFIGURATION_H
#define PKGLIB_CONFIGURATION_H
-
+#include <regex.h>
#include <string>
#include <vector>
@@ -104,6 +104,23 @@ class Configuration
Configuration(const Item *Root);
Configuration();
~Configuration();
+
+ /** \brief match a string against a configurable list of patterns */
+ class MatchAgainstConfig
+ {
+ std::vector<regex_t *> patterns;
+
+ public:
+ MatchAgainstConfig(char const * Config);
+ virtual ~MatchAgainstConfig();
+
+ /** \brief Returns \b true for a string matching one of the patterns */
+ bool Match(char const * str) const;
+ bool Match(std::string const &str) const { return Match(str.c_str()); };
+
+ /** \brief returns if the matcher setup was successful */
+ bool wasConstructedSuccessfully() const { return patterns.empty() == false; }
+ };
};
extern Configuration *_config;