Subject: [Boost-commit] svn:boost r61155 - in trunk/libs/spirit/example/scheme: detail input output test test/parse_qiexpr
From: hartmut.kaiser_at_[hidden]
Date: 2010-04-09 09:40:54
Author: hkaiser
Date: 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
New Revision: 61155
URL: http://svn.boost.org/trac/boost/changeset/61155
Log:
Spirit: added beginnings of Qi parser
Added:
trunk/libs/spirit/example/scheme/input/parse_qiexpr.hpp (contents, props changed)
trunk/libs/spirit/example/scheme/input/parse_qiexpr_impl.hpp (contents, props changed)
trunk/libs/spirit/example/scheme/input/qiexpr.hpp (contents, props changed)
trunk/libs/spirit/example/scheme/input/string.hpp (contents, props changed)
trunk/libs/spirit/example/scheme/test/parse_qiexpr/
trunk/libs/spirit/example/scheme/test/parse_qiexpr/generate_sexpr_to_ostream.cpp (contents, props changed)
trunk/libs/spirit/example/scheme/test/parse_qiexpr/input.txt (contents, props changed)
trunk/libs/spirit/example/scheme/test/parse_qiexpr/parse_qi_test.cpp (contents, props changed)
trunk/libs/spirit/example/scheme/test/parse_qiexpr/parse_qiexpr.cpp (contents, props changed)
Text files modified:
trunk/libs/spirit/example/scheme/detail/utree_detail3.hpp | 6 ++-
trunk/libs/spirit/example/scheme/input/parse_sexpr_impl.hpp | 4 +-
trunk/libs/spirit/example/scheme/input/sexpr.hpp | 80 ++-------------------------------------
trunk/libs/spirit/example/scheme/output/sexpr.hpp | 4 ++
trunk/libs/spirit/example/scheme/test/sexpr_input_test.cpp | 2
trunk/libs/spirit/example/scheme/test/sexpr_output_test.cpp | 4 +-
6 files changed, 18 insertions(+), 82 deletions(-)
Modified: trunk/libs/spirit/example/scheme/detail/utree_detail3.hpp
==============================================================================
--- trunk/libs/spirit/example/scheme/detail/utree_detail3.hpp (original)
+++ trunk/libs/spirit/example/scheme/detail/utree_detail3.hpp 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
@@ -73,7 +73,8 @@
typedef boost::iterator_range<utree::iterator> type;
static type call(utree const& x)
{
- return type(utree::iterator(x.l.first), utree::iterator(0));
+ return type(utree::iterator(x.l.first)
+ , utree::iterator(0, x.l.last));
}
};
@@ -83,7 +84,8 @@
typedef boost::iterator_range<utree::const_iterator> type;
static type call(utree const& x)
{
- return type(utree::const_iterator(x.l.first), utree::const_iterator(0));
+ return type(utree::const_iterator(x.l.first)
+ , utree::const_iterator(0, x.l.last));
}
};
Added: trunk/libs/spirit/example/scheme/input/parse_qiexpr.hpp
==============================================================================
--- (empty file)
+++ trunk/libs/spirit/example/scheme/input/parse_qiexpr.hpp 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
@@ -0,0 +1,19 @@
+// Copyright (c) 2001-2010 Hartmut Kaiser
+//
+// Distributed under 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)
+
+#if !defined(BOOST_SPIRIT_PARSE_QIEXPR)
+#define BOOST_SPIRIT_PARSE_QIEXPR
+
+#include "../utree.hpp"
+
+namespace scheme { namespace input
+{
+ template <typename String>
+ bool parse_qiexpr(String const& str, utree& result);
+}}
+
+#endif
+
+
Added: trunk/libs/spirit/example/scheme/input/parse_qiexpr_impl.hpp
==============================================================================
--- (empty file)
+++ trunk/libs/spirit/example/scheme/input/parse_qiexpr_impl.hpp 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
@@ -0,0 +1,33 @@
+// Copyright (c) 2001-2010 Hartmut Kaiser
+//
+// Distributed under 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)
+
+#if !defined(BOOST_SPIRIT_PARSE_QIEXPR_IMPL)
+#define BOOST_SPIRIT_PARSE_QIEXPR_IMPL
+
+#include <iostream>
+#include <boost/spirit/include/support_istream_iterator.hpp>
+#include <boost/spirit/include/qi_parse.hpp>
+
+#include "../input/qiexpr.hpp"
+#include "../input/parse_qiexpr.hpp"
+
+namespace scheme { namespace input
+{
+ ///////////////////////////////////////////////////////////////////////////
+ template <typename String>
+ bool parse_qiexpr(String const& str, utree& result)
+ {
+ typedef typename String::const_iterator iterator_type;
+
+ scheme::input::qiexpr<iterator_type> p;
+ scheme::input::qiexpr_white_space<iterator_type> ws;
+
+ return phrase_parse(str.begin(), str.end(), p, ws, result);
+ }
+}}
+
+#endif
+
+
Modified: trunk/libs/spirit/example/scheme/input/parse_sexpr_impl.hpp
==============================================================================
--- trunk/libs/spirit/example/scheme/input/parse_sexpr_impl.hpp (original)
+++ trunk/libs/spirit/example/scheme/input/parse_sexpr_impl.hpp 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
@@ -27,7 +27,7 @@
iterator_type last;
scheme::input::sexpr<iterator_type> p;
- scheme::input::white_space<iterator_type> ws;
+ scheme::input::sexpr_white_space<iterator_type> ws;
return phrase_parse(first, last, p, ws, result);
}
@@ -44,7 +44,7 @@
iterator_type last;
scheme::input::sexpr<iterator_type> p;
- scheme::input::white_space<iterator_type> ws;
+ scheme::input::sexpr_white_space<iterator_type> ws;
return phrase_parse(first, last, +p, ws, result);
}
Added: trunk/libs/spirit/example/scheme/input/qiexpr.hpp
==============================================================================
--- (empty file)
+++ trunk/libs/spirit/example/scheme/input/qiexpr.hpp 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
@@ -0,0 +1,127 @@
+// Copyright (c) 2001-2010 Hartmut Kaiser
+//
+// Distributed under 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)
+
+#if !defined(BOOST_SPIRIT_QIEXPR)
+#define BOOST_SPIRIT_QIEXPR
+
+#include <string>
+
+#include <boost/cstdint.hpp>
+#include <boost/detail/iterator.hpp>
+#include <boost/spirit/include/qi.hpp>
+#include <boost/spirit/include/phoenix_core.hpp>
+#include <boost/spirit/include/phoenix_stl.hpp>
+
+#include "../utree.hpp"
+#include "../utree_operators.hpp"
+#include "string.hpp"
+
+namespace scheme { namespace input
+{
+ using boost::spirit::ascii::space;
+ using boost::spirit::qi::grammar;
+ using boost::spirit::qi::rule;
+ using boost::spirit::qi::symbols;
+ using boost::spirit::qi::eol;
+ using boost::spirit::qi::_val;
+ using boost::spirit::qi::_1;
+ using boost::phoenix::push_back;
+
+ ///////////////////////////////////////////////////////////////////////////
+ template <typename Iterator>
+ struct qiexpr_white_space : grammar<Iterator>
+ {
+ qiexpr_white_space() : qiexpr_white_space::base_type(start)
+ {
+ start =
+ space // tab/space/cr/lf
+ | "//" >> *(char_ - eol) >> eol // comments
+ | "/*" >> *(char_ - "*/") >> "*/"
+ ;
+
+// start.name("ws"); debug(start);
+ }
+
+ rule<Iterator> start;
+ };
+
+ ///////////////////////////////////////////////////////////////////////////
+ // a list of names for all supported parser primitives taking no parameters
+ static char const* const primitives0[] =
+ {
+ "char_"
+ , "long_long", "long_", "int_", "short_"
+ , "ulong_long", "ulong_", "uint_", "ushort_"
+ , "bool_", "true_", "false_"
+ , "long_double", "double_", "float_"
+ , 0
+ };
+
+ // a list of names for all supported parser primitives taking 1 parameter
+ static char const* const primitives1[] =
+ {
+ "char_", "lit", "string"
+ , 0
+ };
+
+ // a list of names for all supported parser primitives taking 2 parameter
+ static char const* const primitives2[] =
+ {
+ "char_"
+ , 0
+ };
+
+ ///////////////////////////////////////////////////////////////////////////
+ template <typename Iterator>
+ struct qiexpr : grammar<Iterator, qiexpr_white_space<Iterator>, utree()>
+ {
+ typedef typename boost::detail::iterator_traits<Iterator>::value_type
+ char_type;
+
+ qiexpr() : qiexpr::base_type(start)
+ {
+ start = *expr;
+
+ expr =
+ primitive2 >> '(' >> literal >> ',' >> literal >> ')'
+ | primitive1 >> '(' >> literal >> ')'
+ | primitive0 // taking no parameter
+ ;
+
+ literal =
+ string_lit [ push_back(_val, _1) ]
+ | string_lit.char_lit [ push_back(_val, _1) ]
+ ;
+
+ // fill the symbol tables with all known primitive parser names
+ for (char const* const* p = primitives0; *p; ++p)
+ {
+ utree l;
+ l.push_back(utf8_symbol(*p));
+ primitive0.add(*p, l);
+ }
+
+ for (char const* const* p = primitives1; *p; ++p)
+ {
+ utree l;
+ l.push_back(utf8_symbol(*p));
+ primitive1.add(*p, l);
+ }
+
+ for (char const* const* p = primitives2; *p; ++p)
+ {
+ utree l;
+ l.push_back(utf8_symbol(*p));
+ primitive2.add(*p, l);
+ }
+ }
+
+ rule<Iterator, qiexpr_white_space<Iterator>, utree()> start, expr, literal;
+ symbols<char_type, utree> primitive0, primitive1, primitive2;
+ scheme::input::string<Iterator> string_lit;
+ };
+}}
+
+#endif
Modified: trunk/libs/spirit/example/scheme/input/sexpr.hpp
==============================================================================
--- trunk/libs/spirit/example/scheme/input/sexpr.hpp (original)
+++ trunk/libs/spirit/example/scheme/input/sexpr.hpp 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
@@ -19,6 +19,7 @@
#include "../utree.hpp"
#include "../utree_operators.hpp"
+#include "string.hpp"
namespace scheme { namespace input
{
@@ -27,28 +28,23 @@
using boost::spirit::qi::grammar;
using boost::spirit::qi::rule;
using boost::spirit::qi::eol;
- using boost::spirit::qi::_val;
- using boost::spirit::qi::_r1;
- using boost::spirit::qi::_1;
using boost::spirit::qi::uint_parser;
using boost::spirit::qi::real_parser;
using boost::spirit::qi::strict_real_policies;
- using boost::spirit::qi::char_set;
using boost::spirit::qi::int_;
using boost::spirit::qi::hex;
using boost::spirit::qi::oct;
using boost::spirit::qi::bool_;
using boost::spirit::qi::no_case;
using boost::spirit::qi::lexeme;
- using boost::spirit::qi::lit;
using boost::phoenix::function;
typedef boost::uint32_t uchar; // a unicode code point
template <typename Iterator>
- struct white_space : grammar<Iterator>
+ struct sexpr_white_space : grammar<Iterator>
{
- white_space() : white_space::base_type(start)
+ sexpr_white_space() : sexpr_white_space::base_type(start)
{
start =
space // tab/space/cr/lf
@@ -59,74 +55,8 @@
rule<Iterator> start;
};
- namespace detail
- {
- struct push_utf8
- {
- template <typename S, typename C>
- struct result { typedef void type; };
-
- void operator()(std::string& utf8, uchar code_point) const
- {
- typedef std::back_insert_iterator<std::string> insert_iter;
- insert_iter out_iter(utf8);
- boost::utf8_output_iterator<insert_iter> utf8_iter(out_iter);
- *utf8_iter++ = code_point;
- }
- };
-
- struct push_esc
- {
- template <typename S, typename C>
- struct result { typedef void type; };
-
- void operator()(std::string& utf8, uchar c) const
- {
- switch (c)
- {
- case 'b': utf8 += '\b'; break;
- case 't': utf8 += '\t'; break;
- case 'n': utf8 += '\n'; break;
- case 'f': utf8 += '\f'; break;
- case 'r': utf8 += '\r'; break;
- case '"': utf8 += '"'; break;
- case '\\': utf8 += '\\'; break;
- }
- }
- };
- }
-
- template <typename Iterator>
- struct string : grammar<Iterator, std::string()>
- {
- string() : string::base_type(start)
- {
- uint_parser<uchar, 16, 4, 4> hex4;
- uint_parser<uchar, 16, 8, 8> hex8;
- function<detail::push_utf8> push_utf8;
- function<detail::push_esc> push_esc;
-
- str_esc
- = '\\'
- >> ( ('u' >> hex4) [push_utf8(_r1, _1)]
- | ('U' >> hex8) [push_utf8(_r1, _1)]
- | char_("btnfr\\\"'") [push_esc(_r1, _1)]
- )
- ;
-
- start
- = '"'
- >> *(str_esc(_val) | (~char_('"')) [_val += _1])
- >> '"'
- ;
- }
-
- rule<Iterator, void(std::string&)> str_esc;
- rule<Iterator, std::string()> start;
- };
-
template <typename Iterator>
- struct sexpr : grammar<Iterator, white_space<Iterator>, utree()>
+ struct sexpr : grammar<Iterator, sexpr_white_space<Iterator>, utree()>
{
sexpr() : sexpr::base_type(start)
{
@@ -156,7 +86,7 @@
byte_str = lexeme[no_case['b'] >> +hex2];
}
- rule<Iterator, white_space<Iterator>, utree()> start, list;
+ rule<Iterator, sexpr_white_space<Iterator>, utree()> start, list;
rule<Iterator, int()> integer;
rule<Iterator, utree()> atom;
rule<Iterator, utf8_symbol()> symbol;
Added: trunk/libs/spirit/example/scheme/input/string.hpp
==============================================================================
--- (empty file)
+++ trunk/libs/spirit/example/scheme/input/string.hpp 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
@@ -0,0 +1,110 @@
+/*=============================================================================
+ Copyright (c) 2001-2010 Joel de Guzman
+
+ Distributed under 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)
+=============================================================================*/
+#if !defined(BOOST_SPIRIT_SEXPR_STRING)
+#define BOOST_SPIRIT_SEXPR_STRING
+
+#include <string>
+
+#include <boost/cstdint.hpp>
+#include <boost/spirit/include/qi.hpp>
+#include <boost/spirit/include/phoenix_core.hpp>
+#include <boost/spirit/include/phoenix_container.hpp>
+#include <boost/spirit/include/phoenix_statement.hpp>
+#include <boost/spirit/include/phoenix_operator.hpp>
+#include <boost/regex/pending/unicode_iterator.hpp>
+
+#include "../utree.hpp"
+#include "../utree_operators.hpp"
+
+namespace scheme { namespace input
+{
+ using boost::spirit::ascii::char_;
+ using boost::spirit::qi::grammar;
+ using boost::spirit::qi::rule;
+ using boost::spirit::qi::_val;
+ using boost::spirit::qi::_r1;
+ using boost::spirit::qi::_1;
+ using boost::spirit::qi::uint_parser;
+ using boost::phoenix::function;
+
+ typedef boost::uint32_t uchar; // a unicode code point
+
+ namespace detail
+ {
+ struct push_utf8
+ {
+ template <typename S, typename C>
+ struct result { typedef void type; };
+
+ void operator()(std::string& utf8, uchar code_point) const
+ {
+ typedef std::back_insert_iterator<std::string> insert_iter;
+ insert_iter out_iter(utf8);
+ boost::utf8_output_iterator<insert_iter> utf8_iter(out_iter);
+ *utf8_iter++ = code_point;
+ }
+ };
+
+ struct push_esc
+ {
+ template <typename S, typename C>
+ struct result { typedef void type; };
+
+ void operator()(std::string& utf8, uchar c) const
+ {
+ switch (c)
+ {
+ case 'b': utf8 += '\b'; break;
+ case 't': utf8 += '\t'; break;
+ case 'n': utf8 += '\n'; break;
+ case 'f': utf8 += '\f'; break;
+ case 'r': utf8 += '\r'; break;
+ case '"': utf8 += '"'; break;
+ case '\\': utf8 += '\\'; break;
+ }
+ }
+ };
+ }
+
+ template <typename Iterator>
+ struct string : grammar<Iterator, std::string()>
+ {
+ string() : string::base_type(start)
+ {
+ uint_parser<uchar, 16, 4, 4> hex4;
+ uint_parser<uchar, 16, 8, 8> hex8;
+ function<detail::push_utf8> push_utf8;
+ function<detail::push_esc> push_esc;
+
+ char_esc
+ = '\\'
+ >> ( ('u' >> hex4) [push_utf8(_r1, _1)]
+ | ('U' >> hex8) [push_utf8(_r1, _1)]
+ | char_("btnfr\\\"'") [push_esc(_r1, _1)]
+ )
+ ;
+
+ char_lit
+ = '\''
+ >> (char_esc(_val) | (~char_('\'')) [_val += _1])
+ >> '\''
+ ;
+
+ start
+ = '"'
+ >> *(char_esc(_val) | (~char_('"')) [_val += _1])
+ >> '"'
+ ;
+ }
+
+ rule<Iterator, void(std::string&)> char_esc;
+ rule<Iterator, std::string()> char_lit;
+ rule<Iterator, std::string()> start;
+ };
+}}
+
+#endif
Modified: trunk/libs/spirit/example/scheme/output/sexpr.hpp
==============================================================================
--- trunk/libs/spirit/example/scheme/output/sexpr.hpp (original)
+++ trunk/libs/spirit/example/scheme/output/sexpr.hpp 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
@@ -144,6 +144,7 @@
using boost::spirit::karma::int_;
using boost::spirit::karma::char_;
using boost::spirit::karma::bool_;
+ using boost::spirit::karma::eps;
using boost::spirit::karma::space_type;
using boost::spirit::karma::uint_generator;
@@ -163,6 +164,7 @@
| symbol
| byte_str
| list
+ | nil_
;
list = '(' << *start << ')';
@@ -170,6 +172,7 @@
string = '"' << *char_ << '"';
symbol = *char_;
byte_str = 'b' << *hex2;
+ nil_ = eps;
}
typedef boost::iterator_range<utree::const_iterator> utree_list;
@@ -179,6 +182,7 @@
rule<OutputIterator, utf8_symbol_range()> symbol;
rule<OutputIterator, utf8_string_range()> string;
rule<OutputIterator, binary_range()> byte_str;
+ rule<OutputIterator, nil()> nil_;
};
}}
Added: trunk/libs/spirit/example/scheme/test/parse_qiexpr/generate_sexpr_to_ostream.cpp
==============================================================================
--- (empty file)
+++ trunk/libs/spirit/example/scheme/test/parse_qiexpr/generate_sexpr_to_ostream.cpp 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
@@ -0,0 +1,16 @@
+// Copyright (c) 2001-2010 Hartmut Kaiser
+//
+// Distributed under 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)
+
+#include <fstream>
+
+#include "../../output/generate_sexpr.hpp"
+#include "../../output/generate_sexpr_impl.hpp"
+
+// explicit template instantiation for the function parse_sexpr
+namespace scheme { namespace output
+{
+ template bool generate_sexpr(BOOST_TYPEOF(std::cout)&, utree const& result);
+}}
+
Added: trunk/libs/spirit/example/scheme/test/parse_qiexpr/input.txt
==============================================================================
--- (empty file)
+++ trunk/libs/spirit/example/scheme/test/parse_qiexpr/input.txt 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
@@ -0,0 +1,9 @@
+// Copyright (c) 2001-2010 Hartmut Kaiser
+//
+// Distributed under 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)
+
+char_("abc")
+char_
+char_('a')
+char_('a', 'b')
Added: trunk/libs/spirit/example/scheme/test/parse_qiexpr/parse_qi_test.cpp
==============================================================================
--- (empty file)
+++ trunk/libs/spirit/example/scheme/test/parse_qiexpr/parse_qi_test.cpp 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
@@ -0,0 +1,47 @@
+// Copyright (c) 2001-2010 Hartmut Kaiser
+//
+// Distributed under 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)
+
+#include <boost/config/warning_disable.hpp>
+
+#define BOOST_SPIRIT_UNICODE
+
+#include <iostream>
+#include <fstream>
+#include <iterator>
+
+#include "../../input/parse_qiexpr.hpp"
+#include "../../output/generate_sexpr.hpp"
+
+///////////////////////////////////////////////////////////////////////////////
+// Main program
+///////////////////////////////////////////////////////////////////////////////
+int main(int argc, char **argv)
+{
+ std::string str;
+ while (std::getline(std::cin, str))
+ {
+ if (str.empty() || str[0] == 'q' || str[0] == 'Q')
+ break;
+ str += '\n';
+
+ scheme::utree result;
+ if (scheme::input::parse_qiexpr(str, result))
+ {
+ if (scheme::output::generate_sexpr(std::cout, result))
+ {
+ std::cout << std::endl;
+ }
+ else
+ {
+ std::cout << "generate error" << std::endl;
+ }
+ }
+ else
+ {
+ std::cout << "parse error" << std::endl;
+ }
+ }
+ return 0;
+}
Added: trunk/libs/spirit/example/scheme/test/parse_qiexpr/parse_qiexpr.cpp
==============================================================================
--- (empty file)
+++ trunk/libs/spirit/example/scheme/test/parse_qiexpr/parse_qiexpr.cpp 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
@@ -0,0 +1,16 @@
+// Copyright (c) 2001-2010 Hartmut Kaiser
+//
+// Distributed under 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)
+
+#include <fstream>
+
+#include "../../input/parse_qiexpr.hpp"
+#include "../../input/parse_qiexpr_impl.hpp"
+
+// explicit template instantiation for the function parse_sexpr
+namespace scheme { namespace input
+{
+ template bool parse_qiexpr(std::string const&, utree& result);
+}}
+
Modified: trunk/libs/spirit/example/scheme/test/sexpr_input_test.cpp
==============================================================================
--- trunk/libs/spirit/example/scheme/test/sexpr_input_test.cpp (original)
+++ trunk/libs/spirit/example/scheme/test/sexpr_input_test.cpp 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
@@ -22,7 +22,7 @@
///////////////////////////////////////////////////////////////////////////////
int main(int argc, char **argv)
{
- char const* filename;
+ char const* filename = NULL;
if (argc > 1)
{
filename = argv[1];
Modified: trunk/libs/spirit/example/scheme/test/sexpr_output_test.cpp
==============================================================================
--- trunk/libs/spirit/example/scheme/test/sexpr_output_test.cpp (original)
+++ trunk/libs/spirit/example/scheme/test/sexpr_output_test.cpp 2010-04-09 09:40:53 EDT (Fri, 09 Apr 2010)
@@ -62,7 +62,7 @@
int main(int argc, char **argv)
{
- char const* filename_in;
+ char const* filename_in = NULL;
if (argc > 1)
{
filename_in = argv[1];
@@ -73,7 +73,7 @@
return -1;
}
- char const* filename_out;
+ char const* filename_out = NULL;
if (argc > 2)
{
filename_out = argv[2];