60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
// examples/transform_strings.cc
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// This file is part of libpbe; see http://decimail.org
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// (C) 2004 Philip Endecott
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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// Example for use of StringTransformer class
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// Create a string transformer object to transform strings.
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// Create the object once (a bit expensive) and use it many time (cheapish)
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// For example: transform a string to escape quotes, make upper case etc.
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#include "StringTransformer.hh"
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#include <iostream>
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#include <sstream>
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using namespace std;
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bool is_ctrl(char c) {
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return c<32;
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}
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string to_escseq(char c) {
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ostringstream s;
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s << '\\' << static_cast<int>(c);
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return s.str();
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}
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int main(int argc, char* argv[])
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{
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StringTransformer escape_quotes;
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escape_quotes.add_cs_rule('\"', "\\\""); // replace " with \"
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StringTransformer escape_ctrl;
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escape_ctrl.add_pf_rule(is_ctrl, to_escseq);
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while (1) {
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char buf[128];
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cin.getline(buf,sizeof(buf));
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string s(buf);
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cout << "Escape quotes: " << escape_quotes(s) << endl;
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cout << "Escape ctrls: " << escape_ctrl(s) << endl;
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}
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}
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