3 * Copyright (c) 1998-2000
6 * Permission to use, copy, modify, distribute and sell this software
7 * and its documentation for any purpose is hereby granted without fee,
8 * provided that the above copyright notice appear in all copies and
9 * that both that copyright notice and this permission notice appear
10 * in supporting documentation. Dr John Maddock makes no representations
11 * about the suitability of this software for any purpose.
12 * It is provided "as is" without express or implied warranty.
17 * LOCATION: see http://www.boost.org for most recent version.
20 * DESCRIPTION: Declares various platform independent file and
21 * directory iterators, plus binary file input in
22 * the form of class map_file.
25 #ifndef BOOST_RE_FILEITER_HPP
26 #define BOOST_RE_FILEITER_HPP
28 #include <boost/re_detail/regex_config.hpp>
30 #if (defined(__CYGWIN__) || defined(__CYGWIN32__)) && !defined(BOOST_RE_NO_W32)
31 #error "Sorry, can't mix <windows.h> with STL code and gcc compiler: if you ran configure, try again with configure --disable-ms-windows"
34 #elif (defined(__WIN32__) || defined(_WIN32) || defined(WIN32)) && !defined(BOOST_RE_NO_W32)
42 #if defined(FI_WIN32_MAP)||defined(FI_WIN32_DIR)
46 #if defined(FI_WIN32_DIR)
51 typedef WIN32_FIND_DATA _fi_find_data;
52 typedef HANDLE _fi_find_handle;
54 } // namespace re_detail
58 #define _fi_invalid_handle INVALID_HANDLE_VALUE
59 #define _fi_dir FILE_ATTRIBUTE_DIRECTORY
61 #elif defined(FI_POSIX_DIR)
70 #if defined(__SUNPRO_CC)
82 #if __BORLANDC__ == 0x530
83 #pragma option push -a4 -b -Ve
84 #elif __BORLANDC__ > 0x530
85 #pragma option push -a8 -b -Ve
91 unsigned dwFileAttributes;
92 char cFileName[MAX_PATH];
97 typedef _fi_priv_data* _fi_find_handle;
98 #define _fi_invalid_handle NULL
101 _fi_find_handle _fi_FindFirstFile(const char* lpFileName, _fi_find_data* lpFindFileData);
102 bool _fi_FindNextFile(_fi_find_handle hFindFile, _fi_find_data* lpFindFileData);
103 bool _fi_FindClose(_fi_find_handle hFindFile);
106 #if __BORLANDC__ > 0x520
111 } // namespace re_detail
124 #define FindFirstFile _fi_FindFirstFile
125 #define FindNextFile _fi_FindNextFile
126 #define FindClose _fi_FindClose
134 #if __BORLANDC__ == 0x530
135 #pragma option push -a4 -b
136 #elif __BORLANDC__ > 0x530
137 #pragma option push -a8 -b
141 #ifdef FI_WIN32_MAP // win32 mapfile
143 class BOOST_RE_IX_DECL mapfile
151 typedef const char* iterator;
153 mapfile(){ hfile = hmap = 0; _first = _last = 0; }
154 mapfile(const char* file){ hfile = hmap = 0; _first = _last = 0; open(file); }
155 ~mapfile(){ close(); }
156 void open(const char* file);
158 const char* begin(){ return _first; }
159 const char* end(){ return _last; }
160 size_t size(){ return _last - _first; }
161 bool valid(){ return (hfile != 0) && (hfile != INVALID_HANDLE_VALUE); }
165 #elif !defined(BOOST_RE_NO_STL) // use C API to emulate the memory map:
167 class BOOST_RE_IX_DECL mapfile_iterator;
169 class BOOST_RE_IX_DECL mapfile
171 typedef char* pointer;
176 mutable std::list<pointer*> condemed;
181 void lock(pointer* node)const;
182 void unlock(pointer* node)const;
185 typedef mapfile_iterator iterator;
187 mapfile(){ hfile = 0; _size = 0; _first = _last = 0; }
188 mapfile(const char* file){ hfile = 0; _size = 0; _first = _last = 0; open(file); }
189 ~mapfile(){ close(); }
190 void open(const char* file);
192 iterator begin()const;
194 unsigned long size()const{ return _size; }
195 bool valid()const{ return hfile != 0; }
196 friend class mapfile_iterator;
199 class BOOST_RE_IX_DECL mapfile_iterator : public BOOST_RE_RA_ITERATOR(char, long)
201 typedef mapfile::pointer internal_pointer;
202 internal_pointer* node;
204 unsigned long offset;
207 return file ? ((node - file->_first) * mapfile::buf_size + offset) : 0;
209 void position(long pos)
213 node = file->_first + (pos / mapfile::buf_size);
214 offset = pos % mapfile::buf_size;
218 typedef std::ptrdiff_t difference_type;
219 typedef char value_type;
220 typedef const char* pointer;
221 typedef const char& reference;
222 typedef std::random_access_iterator_tag iterator_category;
224 mapfile_iterator() { node = 0; file = 0; offset = 0; }
225 mapfile_iterator(const mapfile* f, long position)
228 node = f->_first + position / mapfile::buf_size;
229 offset = position % mapfile::buf_size;
233 mapfile_iterator(const mapfile_iterator& i)
246 mapfile_iterator& operator = (const mapfile_iterator& i);
247 char operator* ()const
249 assert(node >= file->_first);
250 assert(node < file->_last);
251 return file ? *(*node + sizeof(int) + offset) : char(0);
253 char operator[] (long off)const
255 mapfile_iterator tmp(*this);
259 mapfile_iterator& operator++ ();
260 mapfile_iterator operator++ (int);
261 mapfile_iterator& operator-- ();
262 mapfile_iterator operator-- (int);
264 mapfile_iterator& operator += (long off)
266 position(position() + off);
269 mapfile_iterator& operator -= (long off)
271 position(position() - off);
275 friend inline bool operator==(const mapfile_iterator& i, const mapfile_iterator& j)
277 return (i.file == j.file) && (i.node == j.node) && (i.offset == j.offset);
279 #ifndef BOOST_RE_NO_NOT_EQUAL
280 friend inline bool operator!=(const mapfile_iterator& i, const mapfile_iterator& j)
285 friend inline bool operator<(const mapfile_iterator& i, const mapfile_iterator& j)
287 return i.position() < j.position();
289 friend inline bool operator>(const mapfile_iterator& i, const mapfile_iterator& j)
291 return i.position() > j.position();
293 friend inline bool operator<=(const mapfile_iterator& i, const mapfile_iterator& j)
295 return i.position() <= j.position();
297 friend inline bool operator>=(const mapfile_iterator& i, const mapfile_iterator& j)
299 return i.position() >= j.position();
302 friend mapfile_iterator operator + (const mapfile_iterator& i, long off);
303 friend mapfile_iterator operator + (long off, const mapfile_iterator& i)
305 mapfile_iterator tmp(i);
308 friend mapfile_iterator operator - (const mapfile_iterator& i, long off);
309 friend inline long operator - (const mapfile_iterator& i, const mapfile_iterator& j)
311 return i.position() - j.position();
317 // _fi_sep determines the directory separator, either '\\' or '/'
318 BOOST_RE_IX_DECL extern const char* _fi_sep;
320 struct file_iterator_ref
328 class BOOST_RE_IX_DECL file_iterator : public BOOST_RE_INPUT_ITERATOR(const char*, std::ptrdiff_t)
333 file_iterator_ref* ref;
337 file_iterator(const char* wild);
339 file_iterator(const file_iterator&);
340 file_iterator& operator=(const file_iterator&);
341 const char* root()const { return _root; }
342 const char* path()const { return _path; }
343 const char* name()const { return ptr; }
344 _fi_find_data* data() { return &(ref->_data); }
346 file_iterator& operator++() { next(); return *this; }
347 file_iterator operator++(int);
348 const char* operator*() { return path(); }
350 friend inline bool operator == (const file_iterator& f1, const file_iterator& f2)
352 return ((f1.ref->hf == _fi_invalid_handle) && (f2.ref->hf == _fi_invalid_handle));
354 #ifndef BOOST_RE_NO_NOT_EQUAL
355 friend inline bool operator != (const file_iterator& f1, const file_iterator& f2)
362 // dwa 9/13/00 - suppress unused parameter warning
363 inline bool operator < (const file_iterator&, const file_iterator&)
369 class BOOST_RE_IX_DECL directory_iterator : public BOOST_RE_INPUT_ITERATOR(const char*, std::ptrdiff_t)
374 file_iterator_ref* ref;
377 directory_iterator();
378 directory_iterator(const char* wild);
379 ~directory_iterator();
380 directory_iterator(const directory_iterator& other);
381 directory_iterator& operator=(const directory_iterator& other);
383 const char* root()const { return _root; }
384 const char* path()const { return _path; }
385 const char* name()const { return ptr; }
386 _fi_find_data* data() { return &(ref->_data); }
388 directory_iterator& operator++() { next(); return *this; }
389 directory_iterator operator++(int);
390 const char* operator*() { return path(); }
392 static const char* separator() { return _fi_sep; }
394 friend inline bool operator == (const directory_iterator& f1, const directory_iterator& f2)
396 return ((f1.ref->hf == _fi_invalid_handle) && (f2.ref->hf == _fi_invalid_handle));
399 #ifndef BOOST_RE_NO_NOT_EQUAL
400 friend inline bool operator != (const directory_iterator& f1, const directory_iterator& f2)
407 inline bool operator < (const directory_iterator&, const directory_iterator&)
413 #if __BORLANDC__ > 0x520
419 } // namespace re_detail
420 using boost::re_detail::directory_iterator;
421 using boost::re_detail::file_iterator;
422 using boost::re_detail::mapfile;
425 #endif // _FILEITER_H