Chris@16: /*
Chris@16:  *
Chris@16:  * Copyright (c) 1998-2002
Chris@16:  * John Maddock
Chris@16:  *
Chris@16:  * Use, modification and distribution are subject to the 
Chris@16:  * Boost Software License, Version 1.0. (See accompanying file 
Chris@16:  * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16:  *
Chris@16:  */
Chris@16:  
Chris@16:  /*
Chris@16:   *   LOCATION:    see http://www.boost.org for most recent version.
Chris@16:   *   FILE         fileiter.hpp
Chris@16:   *   VERSION      see <boost/version.hpp>
Chris@16:   *   DESCRIPTION: Declares various platform independent file and
Chris@16:   *                directory iterators, plus binary file input in
Chris@16:   *                the form of class map_file.
Chris@16:   */
Chris@16: 
Chris@16: #ifndef BOOST_RE_FILEITER_HPP_INCLUDED
Chris@16: #define BOOST_RE_FILEITER_HPP_INCLUDED
Chris@16: 
Chris@16: #ifndef BOOST_REGEX_CONFIG_HPP
Chris@16: #include <boost/regex/config.hpp>
Chris@16: #endif
Chris@16: #include <boost/assert.hpp>
Chris@16: 
Chris@16: #ifndef BOOST_REGEX_NO_FILEITER
Chris@16: 
Chris@16: #if (defined(__CYGWIN__) || defined(__CYGWIN32__)) && !defined(BOOST_REGEX_NO_W32)
Chris@16: #error "Sorry, can't mix <windows.h> with STL code and gcc compiler: if you ran configure, try again with configure --disable-ms-windows"
Chris@16: #define BOOST_REGEX_FI_WIN32_MAP
Chris@16: #define BOOST_REGEX_FI_POSIX_DIR
Chris@16: #elif (defined(__WIN32__) || defined(_WIN32) || defined(WIN32)) && !defined(BOOST_REGEX_NO_W32)
Chris@16: #define BOOST_REGEX_FI_WIN32_MAP
Chris@16: #define BOOST_REGEX_FI_WIN32_DIR
Chris@16: #else
Chris@16: #define BOOST_REGEX_FI_POSIX_MAP
Chris@16: #define BOOST_REGEX_FI_POSIX_DIR
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(BOOST_REGEX_FI_WIN32_MAP)||defined(BOOST_REGEX_FI_WIN32_DIR)
Chris@16: #include <windows.h>
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(BOOST_REGEX_FI_WIN32_DIR)
Chris@16: 
Chris@16: #include <cstddef>
Chris@16: 
Chris@16: namespace boost{
Chris@16:    namespace re_detail{
Chris@16: 
Chris@16: #ifndef BOOST_NO_ANSI_APIS
Chris@16: typedef WIN32_FIND_DATAA _fi_find_data;
Chris@16: #else
Chris@16: typedef WIN32_FIND_DATAW _fi_find_data;
Chris@16: #endif
Chris@16: typedef HANDLE _fi_find_handle;
Chris@16: 
Chris@16:    } // namespace re_detail
Chris@16: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #define _fi_invalid_handle INVALID_HANDLE_VALUE
Chris@16: #define _fi_dir FILE_ATTRIBUTE_DIRECTORY
Chris@16: 
Chris@16: #elif defined(BOOST_REGEX_FI_POSIX_DIR)
Chris@16: 
Chris@16: #include <cstddef>
Chris@16: #include <cstdio>
Chris@16: #include <cctype>
Chris@16: #include <iterator>
Chris@16: #include <list>
Chris@16: #include <cassert>
Chris@16: #include <dirent.h>
Chris@16: 
Chris@16: #if defined(__SUNPRO_CC)
Chris@16: using std::list;
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef MAX_PATH
Chris@16: #define MAX_PATH 256
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost{
Chris@16:    namespace re_detail{
Chris@16: 
Chris@16: #ifdef BOOST_HAS_ABI_HEADERS
Chris@16: #  include BOOST_ABI_PREFIX
Chris@16: #endif
Chris@16: 
Chris@16: struct _fi_find_data
Chris@16: {
Chris@16:    unsigned dwFileAttributes;
Chris@16:    char cFileName[MAX_PATH];
Chris@16: };
Chris@16: 
Chris@16: struct _fi_priv_data;
Chris@16: 
Chris@16: typedef _fi_priv_data* _fi_find_handle;
Chris@16: #define _fi_invalid_handle 0
Chris@16: #define _fi_dir 1
Chris@16: 
Chris@16: _fi_find_handle _fi_FindFirstFile(const char* lpFileName, _fi_find_data* lpFindFileData);
Chris@16: bool _fi_FindNextFile(_fi_find_handle hFindFile,   _fi_find_data* lpFindFileData);
Chris@16: bool _fi_FindClose(_fi_find_handle hFindFile);
Chris@16: 
Chris@16: #ifdef BOOST_HAS_ABI_HEADERS
Chris@16: #  include BOOST_ABI_SUFFIX
Chris@16: #endif
Chris@16: 
Chris@16:    } // namespace re_detail
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #ifdef FindFirstFile
Chris@16:  #undef FindFirstFile
Chris@16: #endif
Chris@16: #ifdef FindNextFile
Chris@16:  #undef FindNextFile
Chris@16: #endif
Chris@16: #ifdef FindClose
Chris@16:  #undef FindClose
Chris@16: #endif
Chris@16: 
Chris@16: #define FindFirstFileA _fi_FindFirstFile
Chris@16: #define FindNextFileA _fi_FindNextFile
Chris@16: #define FindClose _fi_FindClose
Chris@16: 
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost{
Chris@16:    namespace re_detail{
Chris@16: 
Chris@16: #ifdef BOOST_HAS_ABI_HEADERS
Chris@16: #  include BOOST_ABI_PREFIX
Chris@16: #endif
Chris@16: 
Chris@16: #ifdef BOOST_REGEX_FI_WIN32_MAP // win32 mapfile
Chris@16: 
Chris@16: class BOOST_REGEX_DECL mapfile
Chris@16: {
Chris@16:    HANDLE hfile;
Chris@16:    HANDLE hmap;
Chris@16:    const char* _first;
Chris@16:    const char* _last;
Chris@16: public:
Chris@16: 
Chris@16:    typedef const char* iterator;
Chris@16: 
Chris@16:    mapfile(){ hfile = hmap = 0; _first = _last = 0; }
Chris@16:    mapfile(const char* file){ hfile = hmap = 0; _first = _last = 0; open(file); }
Chris@16:    ~mapfile(){ close(); }
Chris@16:    void open(const char* file);
Chris@16:    void close();
Chris@16:    const char* begin(){ return _first; }
Chris@16:    const char* end(){ return _last; }
Chris@16:    size_t size(){ return _last - _first; }
Chris@16:    bool valid(){ return (hfile != 0) && (hfile != INVALID_HANDLE_VALUE); }
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: #else
Chris@16: 
Chris@16: class BOOST_REGEX_DECL mapfile_iterator;
Chris@16: 
Chris@16: class BOOST_REGEX_DECL mapfile
Chris@16: {
Chris@16:    typedef char* pointer;
Chris@16:    std::FILE* hfile;
Chris@16:    long int _size;
Chris@16:    pointer* _first;
Chris@16:    pointer* _last;
Chris@16:    mutable std::list<pointer*> condemed;
Chris@16:    enum sizes
Chris@16:    {
Chris@16:       buf_size = 4096
Chris@16:    };
Chris@16:    void lock(pointer* node)const;
Chris@16:    void unlock(pointer* node)const;
Chris@16: public:
Chris@16: 
Chris@16:    typedef mapfile_iterator iterator;
Chris@16: 
Chris@16:    mapfile(){ hfile = 0; _size = 0; _first = _last = 0; }
Chris@16:    mapfile(const char* file){ hfile = 0; _size = 0; _first = _last = 0; open(file); }
Chris@16:    ~mapfile(){ close(); }
Chris@16:    void open(const char* file);
Chris@16:    void close();
Chris@16:    iterator begin()const;
Chris@16:    iterator end()const;
Chris@16:    unsigned long size()const{ return _size; }
Chris@16:    bool valid()const{ return hfile != 0; }
Chris@16:    friend class mapfile_iterator;
Chris@16: };
Chris@16: 
Chris@16: class BOOST_REGEX_DECL mapfile_iterator
Chris@16: #if !defined(BOOST_NO_STD_ITERATOR) || defined(BOOST_MSVC_STD_ITERATOR)
Chris@16: : public std::iterator<std::random_access_iterator_tag, char>
Chris@16: #endif
Chris@16: {
Chris@16:    typedef mapfile::pointer internal_pointer;
Chris@16:    internal_pointer* node;
Chris@16:    const mapfile* file;
Chris@16:    unsigned long offset;
Chris@16:    long position()const
Chris@16:    {
Chris@16:       return file ? ((node - file->_first) * mapfile::buf_size + offset) : 0;
Chris@16:    }
Chris@16:    void position(long pos)
Chris@16:    {
Chris@16:       if(file)
Chris@16:       {
Chris@16:          node = file->_first + (pos / mapfile::buf_size);
Chris@16:          offset = pos % mapfile::buf_size;
Chris@16:       }
Chris@16:    }
Chris@16: public:
Chris@16:    typedef std::ptrdiff_t                  difference_type;
Chris@16:    typedef char                            value_type;
Chris@16:    typedef const char*                     pointer;
Chris@16:    typedef const char&                     reference;
Chris@16:    typedef std::random_access_iterator_tag iterator_category;
Chris@16: 
Chris@16:    mapfile_iterator() { node = 0; file = 0; offset = 0; }
Chris@16:    mapfile_iterator(const mapfile* f, long arg_position)
Chris@16:    {
Chris@16:       file = f;
Chris@16:       node = f->_first + arg_position / mapfile::buf_size;
Chris@16:       offset = arg_position % mapfile::buf_size;
Chris@16:       if(file)
Chris@16:          file->lock(node);
Chris@16:    }
Chris@16:    mapfile_iterator(const mapfile_iterator& i)
Chris@16:    {
Chris@16:       file = i.file;
Chris@16:       node = i.node;
Chris@16:       offset = i.offset;
Chris@16:       if(file)
Chris@16:          file->lock(node);
Chris@16:    }
Chris@16:    ~mapfile_iterator()
Chris@16:    {
Chris@16:       if(file && node)
Chris@16:          file->unlock(node);
Chris@16:    }
Chris@16:    mapfile_iterator& operator = (const mapfile_iterator& i);
Chris@16:    char operator* ()const
Chris@16:    {
Chris@16:       BOOST_ASSERT(node >= file->_first);
Chris@16:       BOOST_ASSERT(node < file->_last);
Chris@16:       return file ? *(*node + sizeof(int) + offset) : char(0);
Chris@16:    }
Chris@16:    char operator[] (long off)const
Chris@16:    {
Chris@16:       mapfile_iterator tmp(*this);
Chris@16:       tmp += off;
Chris@16:       return *tmp;
Chris@16:    }
Chris@16:    mapfile_iterator& operator++ ();
Chris@16:    mapfile_iterator operator++ (int);
Chris@16:    mapfile_iterator& operator-- ();
Chris@16:    mapfile_iterator operator-- (int);
Chris@16: 
Chris@16:    mapfile_iterator& operator += (long off)
Chris@16:    {
Chris@16:       position(position() + off);
Chris@16:       return *this;
Chris@16:    }
Chris@16:    mapfile_iterator& operator -= (long off)
Chris@16:    {
Chris@16:       position(position() - off);
Chris@16:       return *this;
Chris@16:    }
Chris@16: 
Chris@16:    friend inline bool operator==(const mapfile_iterator& i, const mapfile_iterator& j)
Chris@16:    {
Chris@16:       return (i.file == j.file) && (i.node == j.node) && (i.offset == j.offset);
Chris@16:    }
Chris@16: 
Chris@16:    friend inline bool operator!=(const mapfile_iterator& i, const mapfile_iterator& j)
Chris@16:    {
Chris@16:       return !(i == j);
Chris@16:    }
Chris@16: 
Chris@16:    friend inline bool operator<(const mapfile_iterator& i, const mapfile_iterator& j)
Chris@16:    {
Chris@16:       return i.position() < j.position();
Chris@16:    }
Chris@16:    friend inline bool operator>(const mapfile_iterator& i, const mapfile_iterator& j)
Chris@16:    {
Chris@16:       return i.position() > j.position();
Chris@16:    }
Chris@16:    friend inline bool operator<=(const mapfile_iterator& i, const mapfile_iterator& j)
Chris@16:    {
Chris@16:       return i.position() <= j.position();
Chris@16:    }
Chris@16:    friend inline bool operator>=(const mapfile_iterator& i, const mapfile_iterator& j)
Chris@16:    {
Chris@16:       return i.position() >= j.position();
Chris@16:    }
Chris@16: 
Chris@16:    friend mapfile_iterator operator + (const mapfile_iterator& i, long off);
Chris@16:    friend mapfile_iterator operator + (long off, const mapfile_iterator& i)
Chris@16:    {
Chris@16:       mapfile_iterator tmp(i);
Chris@16:       return tmp += off;
Chris@16:    }
Chris@16:    friend mapfile_iterator operator - (const mapfile_iterator& i, long off);
Chris@16:    friend inline long operator - (const mapfile_iterator& i, const mapfile_iterator& j)
Chris@16:    {
Chris@16:       return i.position() - j.position();
Chris@16:    }
Chris@16: };
Chris@16: 
Chris@16: #endif
Chris@16: 
Chris@16: // _fi_sep determines the directory separator, either '\\' or '/'
Chris@16: BOOST_REGEX_DECL extern const char* _fi_sep;
Chris@16: 
Chris@16: struct file_iterator_ref
Chris@16: {
Chris@16:    _fi_find_handle hf;
Chris@16:    _fi_find_data _data;
Chris@16:    long count;
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: class BOOST_REGEX_DECL file_iterator 
Chris@16: {
Chris@16:    char* _root;
Chris@16:    char* _path;
Chris@16:    char* ptr;
Chris@16:    file_iterator_ref* ref;
Chris@16: 
Chris@16: public:
Chris@16:    typedef std::ptrdiff_t            difference_type;
Chris@16:    typedef const char*               value_type;
Chris@16:    typedef const char**              pointer;
Chris@16:    typedef const char*&              reference;
Chris@16:    typedef std::input_iterator_tag   iterator_category;
Chris@16: 
Chris@16:    file_iterator();
Chris@16:    file_iterator(const char* wild);
Chris@16:    ~file_iterator();
Chris@16:    file_iterator(const file_iterator&);
Chris@16:    file_iterator& operator=(const file_iterator&);
Chris@16:    const char* root()const { return _root; }
Chris@16:    const char* path()const { return _path; }
Chris@16:    const char* name()const { return ptr; }
Chris@16:    _fi_find_data* data() { return &(ref->_data); }
Chris@16:    void next();
Chris@16:    file_iterator& operator++() { next(); return *this; }
Chris@16:    file_iterator operator++(int);
Chris@16:    const char* operator*() { return path(); }
Chris@16: 
Chris@16:    friend inline bool operator == (const file_iterator& f1, const file_iterator& f2)
Chris@16:    {
Chris@16:       return ((f1.ref->hf == _fi_invalid_handle) && (f2.ref->hf == _fi_invalid_handle));
Chris@16:    }
Chris@16: 
Chris@16:    friend inline bool operator != (const file_iterator& f1, const file_iterator& f2)
Chris@16:    {
Chris@16:       return !(f1 == f2);
Chris@16:    }
Chris@16: 
Chris@16: };
Chris@16: 
Chris@16: // dwa 9/13/00 - suppress unused parameter warning
Chris@16: inline bool operator < (const file_iterator&, const file_iterator&)
Chris@16: {
Chris@16:    return false;
Chris@16: }
Chris@16: 
Chris@16: 
Chris@16: class BOOST_REGEX_DECL directory_iterator
Chris@16: {
Chris@16:    char* _root;
Chris@16:    char* _path;
Chris@16:    char* ptr;
Chris@16:    file_iterator_ref* ref;
Chris@16: 
Chris@16: public:
Chris@16:    typedef std::ptrdiff_t            difference_type;
Chris@16:    typedef const char*               value_type;
Chris@16:    typedef const char**              pointer;
Chris@16:    typedef const char*&              reference;
Chris@16:    typedef std::input_iterator_tag   iterator_category;
Chris@16: 
Chris@16:    directory_iterator();
Chris@16:    directory_iterator(const char* wild);
Chris@16:    ~directory_iterator();
Chris@16:    directory_iterator(const directory_iterator& other);
Chris@16:    directory_iterator& operator=(const directory_iterator& other);
Chris@16: 
Chris@16:    const char* root()const { return _root; }
Chris@16:    const char* path()const { return _path; }
Chris@16:    const char* name()const { return ptr; }
Chris@16:    _fi_find_data* data() { return &(ref->_data); }
Chris@16:    void next();
Chris@16:    directory_iterator& operator++() { next(); return *this; }
Chris@16:    directory_iterator operator++(int);
Chris@16:    const char* operator*() { return path(); }
Chris@16: 
Chris@16:    static const char* separator() { return _fi_sep; }
Chris@16: 
Chris@16:    friend inline bool operator == (const directory_iterator& f1, const directory_iterator& f2)
Chris@16:    {
Chris@16:       return ((f1.ref->hf == _fi_invalid_handle) && (f2.ref->hf == _fi_invalid_handle));
Chris@16:    }
Chris@16: 
Chris@16: 
Chris@16:    friend inline bool operator != (const directory_iterator& f1, const directory_iterator& f2)
Chris@16:    {
Chris@16:       return !(f1 == f2);
Chris@16:    }
Chris@16: 
Chris@16:    };
Chris@16: 
Chris@16: inline bool operator < (const directory_iterator&, const directory_iterator&)
Chris@16: {
Chris@16:    return false;
Chris@16: }
Chris@16: 
Chris@16: #ifdef BOOST_HAS_ABI_HEADERS
Chris@16: #  include BOOST_ABI_SUFFIX
Chris@16: #endif
Chris@16: 
Chris@16: 
Chris@16: } // namespace re_detail
Chris@16: using boost::re_detail::directory_iterator;
Chris@16: using boost::re_detail::file_iterator;
Chris@16: using boost::re_detail::mapfile;
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif     // BOOST_REGEX_NO_FILEITER
Chris@16: #endif     // BOOST_RE_FILEITER_HPP
Chris@16: 
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