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diff --git a/ml/dlib/dlib/cpp_pretty_printer/cpp_pretty_printer_kernel_2.h b/ml/dlib/dlib/cpp_pretty_printer/cpp_pretty_printer_kernel_2.h
deleted file mode 100644
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--- a/ml/dlib/dlib/cpp_pretty_printer/cpp_pretty_printer_kernel_2.h
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@@ -1,520 +0,0 @@
-// Copyright (C) 2005 Davis E. King (davis@dlib.net)
-// License: Boost Software License See LICENSE.txt for the full license.
-#ifndef DLIB_CPP_PRETTY_PRINTER_KERNEl_2_
-#define DLIB_CPP_PRETTY_PRINTER_KERNEl_2_
-
-#include <string>
-#include <iostream>
-#include <sstream>
-#include "cpp_pretty_printer_kernel_abstract.h"
-#include "../algs.h"
-
-namespace dlib
-{
-
- template <
- typename stack,
- typename tok
- >
- class cpp_pretty_printer_kernel_2
- {
- /*!
- REQUIREMENTS ON stack
- must be an implementation of stack/stack_kernel_abstract.h and
- stack::type == unsigned long
-
- REQUIREMENTS ON tok
- must be an implementation of tokenizer/tokenizer_kernel_abstract.h
-
- INFO
- This implementation applies a black and white color scheme suitable
- for printing on a black and white printer. It also places the document
- title prominently at the top of the pretty printed source file.
- !*/
-
- public:
-
- cpp_pretty_printer_kernel_2 (
- );
-
- virtual ~cpp_pretty_printer_kernel_2 (
- );
-
- void print (
- std::istream& in,
- std::ostream& out,
- const std::string& title
- ) const;
-
- void print_and_number (
- std::istream& in,
- std::ostream& out,
- const std::string& title
- ) const;
-
- private:
-
- // data members
- mutable tok t;
-
- const std::string htmlify (
- const std::string& str
- ) const;
- /*!
- ensures
- - str == str but with any '<' replaced with '&lt;', any '>' replaced
- with '&gt;', and any '&' replaced with '&amp;'
- !*/
-
- void number (
- std::istream& in,
- std::ostream& out
- ) const;
- /*!
- ensures
- - prints in to out and adds line numbers
- !*/
-
- // restricted functions
- cpp_pretty_printer_kernel_2(const cpp_pretty_printer_kernel_2&); // copy constructor
- cpp_pretty_printer_kernel_2& operator=(const cpp_pretty_printer_kernel_2&); // assignment operator
-
- };
-
-// ----------------------------------------------------------------------------------------
-// ----------------------------------------------------------------------------------------
- // member function definitions
-// ----------------------------------------------------------------------------------------
-// ----------------------------------------------------------------------------------------
-
- template <
- typename stack,
- typename tok
- >
- cpp_pretty_printer_kernel_2<stack,tok>::
- cpp_pretty_printer_kernel_2 (
- )
- {
- }
-
-// ----------------------------------------------------------------------------------------
-
- template <
- typename stack,
- typename tok
- >
- cpp_pretty_printer_kernel_2<stack,tok>::
- ~cpp_pretty_printer_kernel_2 (
- )
- {
- }
-
-// ----------------------------------------------------------------------------------------
-
- template <
- typename stack,
- typename tok
- >
- void cpp_pretty_printer_kernel_2<stack,tok>::
- print (
- std::istream& in,
- std::ostream& out,
- const std::string& title
- ) const
- {
- using namespace std;
-
- if (!out)
- throw std::ios::failure("error occurred in cpp_pretty_printer_kernel_2::print");
-
- t.set_stream(in);
-
- out << "<html><!-- "
- << "Created using the cpp_pretty_printer from the dlib C++ library. See http://dlib.net for updates."
- << " --><head>"
- << "<title>" << title << "</title></head><body bgcolor='white'>"
- << "<h1><center>" << title << "</center></h1><pre>\n"
- << "<font style='font-size:9pt' face='Lucida Console'>\n";
- if (!out)
- throw std::ios::failure("error occurred in cpp_pretty_printer_kernel_2::print");
-
- unsigned long scope = 0; // counts the number of new scopes we have entered
- // since we were at a scope where functions can be declared
-
- bool recently_seen_class_keyword = false;
- // true if we have seen the keywords class or struct and
- // we have not seen any identifiers or { characters
-
- bool recently_seen_include = false;
- // true if we have seen the #include keyword and have not seen double
- // quoted text or >
-
- bool recently_seen_new_scope = false;
- // true if we have seen the keywords class, namespace, or struct and
- // we have not seen the characters {, ), or ; since then
-
- bool recently_seen_paren = false;
- // true if we have seen a ) and we have only seen white_space or comments since
-
- bool in_initialization_list = false;
- // true if we have seen a ) followed by any white space or comments and then
- // followed by a : (in scope==0 with recently_seen_preprocessor==false) and we
- // have not yet seen the character { or ;
-
- bool recently_seen_preprocessor = false;
- // true if we have seen the #pragma or #if or #define or #elif keyword and
- // have not seen an identifier.
-
-
- bool recently_seen_extern = false;
- // true if we have seen the extern keyword and haven't yet seen a
- // { or ; character.
-
- unsigned long paren_count = 0;
- // this is the number of ( we have seen minus the number of ) we have
- // seen.
-
-
- int type;
- stack scopes; // a stack to hold old scopes
- string token, temp;
- t.get_token(type,token);
- while (type != tok::END_OF_FILE)
- {
- switch (type)
- {
- case tok::IDENTIFIER: // ------------------------------------------
- if ( recently_seen_class_keyword)
- {
- // this might be a class name so check if there is a
- // ; or identifier or * or &amp; coming up.
- type = t.peek_type();
- temp.clear();
- if (type == tok::WHITE_SPACE)
- {
- t.get_token(type,temp);
- if (temp.find_first_of("\n\r") != string::npos)
- recently_seen_preprocessor = false;
- }
- if (t.peek_token() != ";" && t.peek_type() != tok::IDENTIFIER &&
- t.peek_token() != "*" && t.peek_token() != "&amp;")
- {
- // this is the name of a class or struct in a class or
- // struct declaration.
- out << "<b><i>" << token << "</i></b>" << temp;
- }
- else
- {
- out << token << temp;
- }
- }
- else if ( !in_initialization_list &&
- !recently_seen_preprocessor &&
- scope == 0 &&
- paren_count == 0)
- {
- // this might be a function name so check if there is a
- // ( coming up.
- type = t.peek_type();
- temp.clear();
- if (type == tok::WHITE_SPACE)
- {
- t.get_token(type,temp);
- type = t.peek_type();
- }
- if (type == tok::OTHER && t.peek_token() == "(")
- {
- // this is a function definition or prototype
- out << "<b><i>" << token << "</i></b>" << temp;
- }
- else
- {
- out << token << temp;
- }
- }
- else
- {
- out << token;
- }
-
-
-
- recently_seen_class_keyword = false;
- recently_seen_paren = false;
- break;
-
- case tok::KEYWORD: // ---------------------------------------------
- if (scope == 0 && token == "operator")
- {
- // Doing this is sort of weird since operator is really a keyword
- // but I just like how this looks.
- out << "<b><i>" << token << "</i></b>";
- }
- // this isn't a keyword if it is something like #include <new>
- else if (!recently_seen_include)
- {
- // This is a normal keyword
- out << "<u><font face='Fixedsys'>" << token << "</font></u>";
- }
- else
- {
- out << token;
- }
-
- if (token == "#include")
- {
- recently_seen_include = true;
- }
- else if (token == "class")
- {
- recently_seen_new_scope = true;
- recently_seen_class_keyword = true;
- }
- else if (token == "namespace")
- {
- recently_seen_new_scope = true;
- }
- else if (token == "struct")
- {
- recently_seen_new_scope = true;
- recently_seen_class_keyword = true;
- }
- else if (token == "#pragma" || token == "#define" || token == "#elif" || token == "#if")
- {
- recently_seen_preprocessor = true;
- }
- else if (token == "extern")
- {
- recently_seen_extern = true;
- }
- recently_seen_paren = false;
- break;
-
- case tok::COMMENT: // ---------------------------------------------
- {
- out << "<font face='Courier New'>" << htmlify(token) << "</font>";
- }
- break;
-
- case tok::SINGLE_QUOTED_TEXT: // ----------------------------------
- {
- out << htmlify(token);
- recently_seen_paren = false;
- }
- break;
-
- case tok::WHITE_SPACE: // -----------------------------------------
- {
- out << token;
- if (token.find_first_of("\n\r") != string::npos)
- recently_seen_preprocessor = false;
- }
- break;
-
- case tok::DOUBLE_QUOTED_TEXT: // ----------------------------------
- {
- out << htmlify(token);
- recently_seen_paren = false;
- recently_seen_include = false;
- }
- break;
-
- case tok::NUMBER:
- case tok::OTHER: // -----------------------------------------------
- switch (token[0])
- {
- case '{':
- out << "<b>{</b>";
- // if we are entering a new scope
- if (recently_seen_new_scope || recently_seen_extern)
- {
- recently_seen_new_scope = false;
- scopes.push(scope);
- scope = 0;
- }
- else
- {
- ++scope;
- }
- in_initialization_list = false;
- recently_seen_paren = false;
- recently_seen_class_keyword = false;
- recently_seen_extern = false;
- break;
- case '}':
- out << "<b>}</b>";
- if (scope > 0)
- {
- --scope;
- }
- else if (scopes.size())
- {
- scopes.pop(scope);
- }
- recently_seen_paren = false;
- break;
-
- case ':':
- out << ':';
- if (recently_seen_paren && scope == 0 &&
- recently_seen_preprocessor == false)
- {
- in_initialization_list = true;
- }
- recently_seen_paren = false;
- break;
-
- case ';':
- out << ';';
- recently_seen_new_scope = false;
- recently_seen_paren = false;
- recently_seen_extern = false;
- break;
-
- case ')':
- out << ')';
- recently_seen_paren = true;
- recently_seen_new_scope = false;
- --paren_count;
- break;
-
- case '(':
- out << '(';
- recently_seen_paren = false;
- ++paren_count;
- break;
-
- case '>':
- recently_seen_include = false;
- out << "&gt;";
- recently_seen_paren = true;
- break;
-
- case '<':
- out << "&lt;";
- recently_seen_paren = true;
- break;
-
- case '&':
- out << "&amp;";
- recently_seen_paren = true;
- break;
-
- default:
- out << token;
- recently_seen_paren = false;
- if (token == "&gt;")
- recently_seen_include = false;
- break;
-
- } // switch (token[0])
- break;
-
- } // switch (type)
-
- t.get_token(type,token);
- } // while (type != tok::END_OF_FILE)
-
-
- out << "</font></pre></body></html>";
- if (!out)
- throw std::ios::failure("error occurred in cpp_pretty_printer_kernel_2::print");
- }
-
-// ----------------------------------------------------------------------------------------
-
- template <
- typename stack,
- typename tok
- >
- void cpp_pretty_printer_kernel_2<stack,tok>::
- print_and_number (
- std::istream& in,
- std::ostream& out,
- const std::string& title
- ) const
- {
- using namespace std;
- ostringstream sout;
- print(in,sout,title);
- istringstream sin(sout.str());
- number(sin,out);
- }
-
-// ----------------------------------------------------------------------------------------
-// ----------------------------------------------------------------------------------------
- // private member function definitions
-// ----------------------------------------------------------------------------------------
-// ----------------------------------------------------------------------------------------
-
- template <
- typename stack,
- typename tok
- >
- void cpp_pretty_printer_kernel_2<stack,tok>::
- number (
- std::istream& in,
- std::ostream& out
- ) const
- {
- if (!out)
- throw std::ios::failure("error occurred in cpp_pretty_printer_kernel_2::number");
-
- std::string space = "&nbsp;&nbsp;&nbsp;";
- std::ios::int_type ch;
- unsigned long count = 1;
- while ((ch=in.get()) != EOF)
- {
- if (ch != '\n')
- {
- out << (char)ch;
- }
- else
- {
- out << "\n<i><font face='Courier New'>" << count << " </font></i> " + space;
- ++count;
- if (count == 10)
- space = "&nbsp;&nbsp;";
- if (count == 100)
- space = "&nbsp;";
- if (count == 1000)
- space = "";
- }
- }
- if (!out)
- throw std::ios::failure("error occurred in cpp_pretty_printer_kernel_2::number");
- }
-
-// ----------------------------------------------------------------------------------------
-
- template <
- typename stack,
- typename tok
- >
- const std::string cpp_pretty_printer_kernel_2<stack,tok>::
- htmlify (
- const std::string& str
- ) const
- {
- std::string::size_type i;
- std::string temp;
- for (i = 0; i < str.size(); ++i)
- {
- if (str[i] == '<')
- temp += "&lt;";
- else if (str[i] == '>')
- temp += "&gt;";
- else if (str[i] == '&')
- temp += "&amp;";
- else
- temp += str[i];
- }
- return temp;
- }
-
-// ----------------------------------------------------------------------------------------
-
-}
-
-#endif // DLIB_CPP_PRETTY_PRINTER_KERNEl_2_
-
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