138 lines
4.9 KiB
C++
138 lines
4.9 KiB
C++
/*
|
|
*
|
|
* Copyright (c) 1998-2002
|
|
* John Maddock
|
|
*
|
|
* Use, modification and distribution are 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)
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* LOCATION: see http://www.boost.org for most recent version.
|
|
* FILE regex_merge_example.cpp
|
|
* VERSION see <boost/version.hpp>
|
|
* DESCRIPTION: regex_merge example:
|
|
* converts a C++ file to syntax highlighted HTML.
|
|
*/
|
|
|
|
#include <boost/regex.hpp>
|
|
#include <iostream>
|
|
#include <fstream>
|
|
#include <sstream>
|
|
#include <string>
|
|
#include <iterator>
|
|
#include <fstream>
|
|
#include <iostream>
|
|
|
|
// purpose:
|
|
// takes the contents of a file and transform to
|
|
// syntax highlighted code in html format
|
|
|
|
boost::regex e1, e2;
|
|
extern const char* expression_text;
|
|
extern const char* format_string;
|
|
extern const char* pre_expression;
|
|
extern const char* pre_format;
|
|
extern const char* header_text;
|
|
extern const char* footer_text;
|
|
|
|
void load_file(std::string& s, std::istream& is)
|
|
{
|
|
s.erase();
|
|
if(is.bad()) return;
|
|
s.reserve(static_cast<std::string::size_type>(is.rdbuf()->in_avail()));
|
|
char c;
|
|
while(is.get(c))
|
|
{
|
|
if(s.capacity() == s.size())
|
|
s.reserve(s.capacity() * 3);
|
|
s.append(1, c);
|
|
}
|
|
}
|
|
|
|
int main(int argc, const char** argv)
|
|
{
|
|
try{
|
|
e1.assign(expression_text);
|
|
e2.assign(pre_expression);
|
|
for(int i = 1; i < argc; ++i)
|
|
{
|
|
std::cout << "Processing file " << argv[i] << std::endl;
|
|
std::ifstream fs(argv[i]);
|
|
std::string in;
|
|
load_file(in, fs);
|
|
fs.close();
|
|
std::string out_name = std::string(argv[i]) + std::string(".htm");
|
|
std::ofstream os(out_name.c_str());
|
|
os << header_text;
|
|
// strip '<' and '>' first by outputting to a
|
|
// temporary string stream
|
|
std::ostringstream t(std::ios::out | std::ios::binary);
|
|
std::ostream_iterator<char> oi(t);
|
|
boost::regex_merge(oi, in.begin(), in.end(), e2, pre_format, boost::match_default | boost::format_all);
|
|
// then output to final output stream
|
|
// adding syntax highlighting:
|
|
std::string s(t.str());
|
|
std::ostream_iterator<char> out(os);
|
|
boost::regex_merge(out, s.begin(), s.end(), e1, format_string, boost::match_default | boost::format_all);
|
|
os << footer_text;
|
|
os.close();
|
|
}
|
|
}
|
|
catch(...)
|
|
{ return -1; }
|
|
return 0;
|
|
}
|
|
|
|
const char* pre_expression = "(<)|(>)|\\r";
|
|
const char* pre_format = "(?1<)(?2>)";
|
|
|
|
|
|
const char* expression_text = // preprocessor directives: index 1
|
|
"(^[[:blank:]]*#(?:[^\\\\\\n]|\\\\[^\\n[:punct:][:word:]]*[\\n[:punct:][:word:]])*)|"
|
|
// comment: index 2
|
|
"(//[^\\n]*|/\\*.*?\\*/)|"
|
|
// literals: index 3
|
|
"\\<([+-]?(?:(?:0x[[:xdigit:]]+)|(?:(?:[[:digit:]]*\\.)?[[:digit:]]+(?:[eE][+-]?[[:digit:]]+)?))u?(?:(?:int(?:8|16|32|64))|L)?)\\>|"
|
|
// string literals: index 4
|
|
"('(?:[^\\\\']|\\\\.)*'|\"(?:[^\\\\\"]|\\\\.)*\")|"
|
|
// keywords: index 5
|
|
"\\<(__asm|__cdecl|__declspec|__export|__far16|__fastcall|__fortran|__import"
|
|
"|__pascal|__rtti|__stdcall|_asm|_cdecl|__except|_export|_far16|_fastcall"
|
|
"|__finally|_fortran|_import|_pascal|_stdcall|__thread|__try|asm|auto|bool"
|
|
"|break|case|catch|cdecl|char|class|const|const_cast|continue|default|delete"
|
|
"|do|double|dynamic_cast|else|enum|explicit|extern|false|float|for|friend|goto"
|
|
"|if|inline|int|long|mutable|namespace|new|operator|pascal|private|protected"
|
|
"|public|register|reinterpret_cast|return|short|signed|sizeof|static|static_cast"
|
|
"|struct|switch|template|this|throw|true|try|typedef|typeid|typename|union|unsigned"
|
|
"|using|virtual|void|volatile|wchar_t|while)\\>"
|
|
;
|
|
|
|
const char* format_string = "(?1<font color=\"#008040\">$&</font>)"
|
|
"(?2<I><font color=\"#000080\">$&</font></I>)"
|
|
"(?3<font color=\"#0000A0\">$&</font>)"
|
|
"(?4<font color=\"#0000FF\">$&</font>)"
|
|
"(?5<B>$&</B>)";
|
|
|
|
const char* header_text = "<HTML>\n<HEAD>\n"
|
|
"<TITLE>Auto-generated html formated source</TITLE>\n"
|
|
"<META HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; charset=windows-1252\">\n"
|
|
"</HEAD>\n"
|
|
"<BODY LINK=\"#0000ff\" VLINK=\"#800080\" BGCOLOR=\"#ffffff\">\n"
|
|
"<P> </P>\n<PRE>";
|
|
|
|
const char* footer_text = "</PRE>\n</BODY>\n\n";
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|