add regular expression support in remember capabilities

see ChangeLog for details

1 files changed, 94 insertions, 0 deletions

diff --git a/src/RegExp.cc b/src/RegExp.cc
new file mode 100644
index 0000000..2e991da
--- /dev/null
+++ b/src/RegExp.cc
@@ -0,0 +1,94 @@
+// RegExp.cc for Fluxbox Window Manager
+// Copyright (c) 2003 Henrik Kinnunen (fluxgen at users.sourceforge.net)
+//                and Simon Bowden    (rathnor at users.sourceforge.net)
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+// $Id: RegExp.cc,v 1.1 2003/06/12 15:12:19 rathnor Exp $
+
+#include "RegExp.hh"
+
+//use GNU extensions
+#ifndef  _GNU_SOURCE
+#define  _GNU_SOURCE
+#endif // _GNU_SOURCE
+
+#include <string>
+#include <iostream>
+
+using namespace std;
+
+
+/********************************************************
+ * RegExp *
+ ***********/
+
+// full_match is to say if we match on this regexp using the full string
+// or just a substring. Substrings aren't supported if not HAVE_REGEXP
+RegExp::RegExp(const std::string &str, bool full_match):
+#ifdef USE_REGEXP
+m_regex(0) {
+    string match;
+    if (full_match) {
+        match = "^";
+        match.append(str);
+        match.append("$");
+    } else {
+        match = str;
+    }
+
+    m_regex = new regex_t;
+    int ret = regcomp(m_regex, match.c_str(), REG_NOSUB | REG_EXTENDED);
+    if (ret != 0) {
+        char *errstr = 0;
+        // gives us the length of the string
+        unsigned int size = regerror(ret, m_regex, errstr, 0);
+        errstr = new char[size];
+
+        regerror(ret, m_regex, errstr, size);
+        cerr<<"Error parsing regular expression: "<<errstr<<endl;
+        delete [] errstr;
+        delete m_regex; // I don't think I regfree a failed compile?
+        m_regex = 0;
+    }
+}
+#else // notdef USE_REGEXP
+m_str(str) {}
+#endif // USE_REGEXP
+
+RegExp::~RegExp() {
+#ifdef USE_REGEXP
+    if (m_regex != 0) {
+        regfree(m_regex);
+        delete m_regex;
+    }
+#endif // USE_REGEXP
+}
+
+bool RegExp::match(const std::string &str) {
+#ifdef USE_REGEXP
+    if (m_regex)
+        return (regexec(m_regex, str.c_str(), 0, 0, 0) == 0);
+    else
+        return false;
+#else // notdef USE_REGEXP
+    return (m_str == str);
+#endif // USE_REGEXP
+}
+