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   arr.g

   arrstr.g

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   buf.g

   console.g

   fcopy.g

   ffind.g

   file.g

   hash.g

   math.g

   process.g

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   stack.g

   stdlib.g

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   stradv.g

   strfile.g

   system.g

   ustr.g

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  1 /******************************************************************************
  2 *
  3 * Copyright (C) 2004-2007, The Gentee Group. All rights reserved. 
  4 * This file is part of the Gentee open source project - http://www.gentee.com. 
  5 * 
  6 * THIS FILE IS PROVIDED UNDER THE TERMS OF THE GENTEE LICENSE ("AGREEMENT"). 
  7 * ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS FILE CONSTITUTES RECIPIENTS 
  8 * ACCEPTANCE OF THE AGREEMENT.
  9 *
 10 * Author: Alexey Krivonogov ( gentee )
 11 *
 12 ******************************************************************************/
 13 
 14 define <export> {
 15 /*-----------------------------------------------------------------------------
 16 * Id: fileflags D
 17 * 
 18 * Summary: File flags for file.open.
 19 *
 20 -----------------------------------------------------------------------------*/
 21    OP_READONLY  = 0x0001   // Open as read-only.
 22    OP_EXCLUSIVE = 0x0002   // Open in the exclusive mode.
 23    OP_CREATE    = 0x0004   // Create the file.
 24    OP_ALWAYS    = 0x0008   // Create the file only if it does not exist.
 25 
 26 //-----------------------------------------------------------------------------
 27 }
 28 
 29 /*-----------------------------------------------------------------------------
 30 * Id: tfile T file 
 31 * 
 32 * Summary: File structure.
 33 *
 34 -----------------------------------------------------------------------------*/
 35 
 36 type file {
 37    uint fopen           // 1 if the file is opened.
 38    uint handle          // The handle of the opened file.
 39    str  name            // The name of the file.
 40 }
 41 
 42 /*-----------------------------------------------------------------------------
 43 * Id: file_close F3
 44 *
 45 * Summary: Close a file. 
 46 *  
 47 * Return: #lng/retf#
 48 *
 49 -----------------------------------------------------------------------------*/
 50 
 51 method uint file.close( )
 52 {
 53    if .fopen
 54    {
 55       .fopen = 0
 56       return CloseHandle( .handle )
 57    }
 58    return 0
 59 }
 60 
 61 /*-----------------------------------------------------------------------------
 62 * Id: file_open F2
 63 *
 64 * Summary: Open a file. 
 65 *  
 66 * Params: name - The name of the file to be opened. 
 67           flag - The following flags can be used.$$[fileflags] 
 68 * 
 69 * Return: #lng/retf#
 70 *
 71 -----------------------------------------------------------------------------*/
 72 
 73 method uint file.open( str name, uint flag )
 74 {
 75    .name = name
 76    .handle = CreateFile( 
 77          name.ptr(), 
 78          ?( flag & $OP_READONLY, $GENERIC_READ, $GENERIC_RW ), 
 79          ?( flag & $OP_EXCLUSIVE, 0, 
 80             ?( flag & $OP_READONLY, $FILE_SHARE_RW, $FILE_SHARE_RW )), 
 81          0, 
 82          ?( flag & $OP_CREATE, $CREATE_ALWAYS, 
 83             ?( flag & $OP_ALWAYS, $OPEN_ALWAYS, $OPEN_EXISTING )), 
 84          0, 
 85          0 )      
 86    return .fopen = .handle != $INVALID_HANDLE_VALUE
 87 }
 88 
 89 /*-----------------------------------------------------------------------------
 90 * Id: file_getsize F3
 91 *
 92 * Summary: Get the size of the file. 
 93 *  
 94 * Return: The size of the file less 4GB.
 95 *
 96 -----------------------------------------------------------------------------*/
 97 
 98 method uint file.getsize( )
 99 {
100    if .fopen
101    { 
102       return GetFileSize( .handle, 0 )
103    }
104    return 0
105 }
106 
107 /*-----------------------------------------------------------------------------
108 * Id: file_read F2
109 *
110 * Summary: Reading a file. 
111 *  
112 * Params: ptr - The pointer where the file will be read. 
113           size - The size of the data being read. 
114 * 
115 * Return: The function returns the size of the read data.
116 *
117 -----------------------------------------------------------------------------*/
118 
119 method uint file.read( uint ptr, uint size )
120 {
121    uint  read
122    
123    if .fopen 
124    {
125    /*   if size > 16000000 
126       {
127          uint fsize = .getsize()
128          if size > fsize : size = fsize
129       } 
130       rbuf.expand( rbuf.use + size + 1 );*/
131       
132       if ReadFile( .handle, ptr, size, &read, 0 ) 
133       {
134          return read
135       }      
136    }
137    return 0
138 }
139 
140 /*-----------------------------------------------------------------------------
141 * Id: file_read_1 FA
142 *
143 * Summary: Reading a file. 
144 *  
145 * Params: rbuf - The buffer where data will be read. Reading is carried out /
146                  by adding data to the buffer. It means that read data will /
147                  be added to those already existing in the buffer.  
148           size - The size of the data being read. 
149 * 
150 * Return: The function returns the size of the read data.
151 *
152 -----------------------------------------------------------------------------*/
153 
154 method uint file.read( buf rbuf, uint size )
155 {
156    if size > 16000000 
157    {
158       uint fsize = .getsize()
159       if size > fsize : size = fsize
160    } 
161    rbuf.expand( rbuf.use + size + 1 )
162    uint fread = this.read( rbuf.data + rbuf.use, size )
163    rbuf.use += fread
164    return fread
165 }
166 
167 /*-----------------------------------------------------------------------------
168 * Id: file_setpos F2
169 *
170 * Summary: Set the current position in the file. 
171 *  
172 * Params: offset - Position offset. 
173           mode - The type of moving the position.$$[filesetmode] 
174 * 
175 * Return: The function returns the current position in the file.
176 *
177 -----------------------------------------------------------------------------*/
178 
179 method uint file.setpos( int offset, uint mode )
180 {
181    if .fopen
182    {
183       return SetFilePointer( .handle, offset, 0, mode )
184    }
185    return 0
186 }
187 
188 /*-----------------------------------------------------------------------------
189 * Id: file_write F2
190 *
191 * Summary: Writing to a file. 
192 *  
193 * Params: data - The pointer to the memory which data will be written.
194           size - The size of the data being written.   
195 * 
196 * Return: The function returns the size of the written data.
197 *
198 -----------------------------------------------------------------------------*/
199 
200 method uint  file.write( uint data, uint size )
201 {
202    uint  write
203    if .fopen
204    {
205       if WriteFile( .handle, data, size, &write, 0 ) && write == size
206       {
207          return write
208       }
209    }
210    return 0
211 }
212 
213 /*-----------------------------------------------------------------------------
214 * Id: file_write_1 FA
215 *
216 * Summary: Writing to a file. 
217 *  
218 * Params: rbuf - The buffer from which data will be written.   
219 * 
220 * Return: The function returns the size of the written data.
221 *
222 -----------------------------------------------------------------------------*/
223 
224 method uint file.write( buf rbuf )
225 {  
226    return .write( rbuf.data, *rbuf )
227 }
228 
229 /*-----------------------------------------------------------------------------
230 * Id: file_write_2 FA
231 *
232 * Summary: Writing to a file from the position. 
233 *  
234 * Params: pos - The start position for writing. 
235           data - The pointer to the memory which data will be written.
236           size - The size of the data being written.   
237 * 
238 * Return: The function returns the size of the written data.
239 *
240 -----------------------------------------------------------------------------*/
241 
242 method uint file.writepos( uint pos, uint data, uint size )
243 {
244    uint write
245    
246    if .setpos( pos, $FILE_BEGIN ) != pos : return 0
247    
248    return .write( data, size )   
249 }
250 
251 //В Linux нет
252 /*-----------------------------------------------------------------------------
253 * Id: file_gettime F2
254 *
255 * Summary: Get the time when the file was last modified. 
256 *  
257 * Params: ft - The variable for getting the time of a file.   
258 * 
259 * Return: #lng/retf#
260 *
261 -----------------------------------------------------------------------------*/
262 
263 method uint file.gettime( filetime ft )
264 {   
265    return GetFileTime( this.handle, 0->filetime, 0->filetime, ft )
266 }
267 
268 /*-----------------------------------------------------------------------------
269 ** Id: file_settime F2
270 *
271 * Summary: Set time for a file. 
272 *  
273 * Params: ft - New time for the file.   
274 * 
275 * Return: #lng/retf#
276 *
277 -----------------------------------------------------------------------------*/
278 
279 method uint file.settime( filetime ft )
280 {
281    return SetFileTime( this.handle, ft, ft, ft )
282 }
283 
284 //-------------------------------------------------
285 
286