small wildcard/regexp wrapper

2013-01-14 18:07:23 +01:00 · 2013-01-14 18:07:23 +01:00 · af214b3aa0
commit af214b3aa0
parent e0640357ce
2 changed files with 185 additions and 0 deletions
--- a/src/utils/strmatcher.cpp
+++ b/src/utils/strmatcher.cpp
@ -0,0 +1,90 @@
+/* Copyright (C) 2012 J.F.Dockes
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the
+ *   Free Software Foundation, Inc.,
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#include "autoconfig.h"
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <regex.h>
+#include <fnmatch.h>
+
+#include <string>
+using std::string;
+
+#include "cstr.h"
+
+#include "strmatcher.h"
+
+bool StrWildMatcher::match(const string& val) const
+{
+    return fnmatch(m_sexp.c_str(), val.c_str(), 0) != FNM_NOMATCH;
+}
+
+string::size_type StrWildMatcher::baseprefixlen() const
+{
+    return m_sexp.find_first_of(cstr_wildSpecStChars);
+}
+
+StrRegexpMatcher::StrRegexpMatcher(const string& exp)
+    : StrMatcher(exp), m_compiled(0), m_errcode(0) 
+{
+    setExp(exp);
+}
+
+bool StrRegexpMatcher::setExp(const string& exp)
+{
+    if (m_compiled) {
+	regfree((regex_t*)m_compiled);
+	delete (regex_t*)m_compiled;
+    }
+    m_compiled = new regex_t;
+    if ((m_errcode = 
+	 regcomp((regex_t*)m_compiled, exp.c_str(), REG_EXTENDED|REG_NOSUB))) {
+	char errbuf[200];
+	regerror(m_errcode, (regex_t*)m_compiled, errbuf, 199);
+	m_reason = string("StrRegexpMatcher:regcomp failed for ")
+	    + exp + string(errbuf);
+	return false;
+    }
+    m_sexp = exp;
+    return true;
+}
+
+StrRegexpMatcher::~StrRegexpMatcher()
+{
+    if (m_compiled) {
+	regfree((regex_t*)m_compiled);
+	delete (regex_t*)m_compiled;
+    }
+}
+
+bool StrRegexpMatcher::match(const string& val) const
+{
+    if (m_errcode) 
+	return false;
+    return regexec((regex_t*)m_compiled, val.c_str(), 0, 0, 0) != REG_NOMATCH;
+}
+
+string::size_type StrRegexpMatcher::baseprefixlen() const
+{
+    return m_sexp.find_first_of(cstr_regSpecStChars);
+}
+
+bool StrRegexpMatcher::ok() const
+{
+    return !m_errcode;
+}