Adding regex support via boost xpressive

README

@@ -2,6 +2,13 @@ This is a free implementation of the Cisco ios/asa/catalyst output modifier "beg
 
 http://www.cisco.com/en/US/docs/ios/preface/usingios.html#wp1012384
 
+DEPENDENCIES
+This program depends on boost/xpressive header only library. On RedHat(-ish) systems do:
+
+yum install boost-devel
+
+before installation
+
 INSTALLATION
 git clone git://github.com/mickenordin/begin.git
 cd begin

begin.cxx

@@ -22,16 +22,18 @@
 
 #include <iostream>
 #include <string>
+#include <boost/xpressive/xpressive.hpp>
 
 using namespace std;
 
 void begin(string needle)
 {
 	string input;
+	boost::xpressive::sregex regex = boost::xpressive::sregex::compile( needle, boost::xpressive::regex_constants::icase );
 
 	while(cin) {
 		getline(cin, input);
-		if (input.find(needle) != string::npos) {
+		if ( boost::xpressive::regex_search(input, regex) ) {
 			cout << input << endl;
 			while(cin) {
 				getline(cin,input);
@@ -42,10 +44,4 @@ void begin(string needle)
 
 }
 
-string tolower(string str) {
-	for( unsigned int i = 0; i < str.length(); i++) {
-		str[i] = tolower(str[i]);
-	}
-	return str;
-} 
 

begin.hpp

@@ -23,9 +23,9 @@
 #include <iostream>
 #include <string>
 
+
 using namespace std;
 
 void begin(string needle);
-string tolower(string str);
 
 #endif

main.cxx

@@ -29,8 +29,6 @@ int main(int argc, char **argv)
 {
 	args myargs(argc, argv);
 	
-	myargs.print();
-	
 	if( argc == 2) {
 		begin(argv[1]);
 	}