String Algorithm Library: initial commit

[SVN r22431]

string/example/replace_example.cpp

@@ -0,0 +1,88 @@
+//  Boost string_algo library example file  ---------------------------------//
+
+//  Copyright Pavol Droba 2002-2003. Use, modification and
+//  distribution is subject to the Boost Software License, Version
+//  1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <string>
+#include <iostream>
+#include <iterator>
+#include <boost/algorithm/string/replace.hpp>
+#include <boost/algorithm/string/erase.hpp>
+#include <boost/algorithm/string/case_conv.hpp>
+
+//Following two includes contain second-layer function.
+//They are already included by first-layer header
+
+//#include <boost/algorithm/string/replace2.hpp>
+//#include <boost/algorithm/string/find2.hpp>
+
+using namespace std;
+using namespace boost;
+
+// uppercase formatter
+/*
+    Convert an input to upper case. 
+    Note, that this formatter can be used only on std::string inputs.
+*/
+inline string upcase_formatter( 
+    const iterator_range<string::const_iterator>& Replace )
+{
+    string Temp(Replace.begin(), Replace.end());
+    to_upper(Temp);
+    return Temp;
+}
+
+int main()
+{  
+    cout << "* Replace Example *" << endl << endl;
+
+    string str1("abc___cde___efg");
+
+    // Erase 6-9th characters from the string
+    cout << "str1 without 6th to 9th character:" <<
+        erase_range_copy( str1, make_iterator_range(str1.begin()+6, str1.begin()+9) ) << endl;
+
+    // Replace 6-9th character with '+++'
+    cout << "str1 with 6th to 9th character replaced with '+++': " << 
+        replace_range_copy( 
+            str1, make_iterator_range(str1.begin()+6, str1.begin()+9), "+++" ) << endl;
+
+    cout << "str1 with 'cde' replaced with 'XYZ': ";
+    
+    // Replace first 'cde' with 'XYZ'. Modify the input
+    replace_first_copy( ostream_iterator<char>(cout), str1, "cde", "XYZ" );
+    cout << endl;
+    
+    // Replace all '___'
+    cout << "str1 with all '___' replaced with '---': " << 
+        replace_all_copy( str1, "___", "---" ) << endl;
+
+    // Erase all '___'
+    cout << "str1 without all '___': " << 
+        erase_all_copy( str1, "___" ) << endl;
+
+    // replace third and 5th occurrence of _ in str1
+    // note that nth argument is 0-based
+    replace_nth( str1, "_", 4, "+" );
+    replace_nth( str1, "_", 2, "+" );
+
+    cout << "str1 with third and 5th occurrence of _ replace: " << str1 << endl;
+
+    // Custom formatter examples
+    string str2("abC-xxxx-AbC-xxxx-abc");
+
+    // Find string 'abc' ignoring the case and convert it to upper case
+    cout << "Upcase all 'abc'(s) in the str2: " <<
+        find_format_all_copy( 
+            str2,
+            first_finder("abc", is_iequal()), 
+            upcase_formatter );
+    
+    cout << endl;
+
+    return 0;
+}