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