1 # This file is part of NIT ( http://www.nitlanguage.org ).
3 # Copyright 2004-2008 Jean Privat <jean@pryen.org>
4 # Copyright 2008 Floréal Morandat <morandat@lirmm.fr>
5 # Copyright 2008 Jean-Sébastien Gélinas <calestar@gmail.com>
7 # This file is free software, which comes along with NIT. This software is
8 # distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
9 # without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
10 # PARTICULAR PURPOSE. You can modify it is you want, provided this header
11 # is kept unaltered, and a notification of the changes is added.
12 # You are allowed to redistribute it and sell it, alone or is a part of
15 # This module handle file input and output
25 # Print `objects' on the standard output (`stdout').
26 protected fun printn
(objects
: Object...)
28 stdout
.write
(objects
.to_s
)
31 # Print an `object' on the standard output (`stdout') and add a newline.
32 protected fun print
(object
: Object)
34 stdout
.write
(object
.to_s
)
38 # Read a character from the standard input (`stdin').
39 protected fun getc
: Char
41 return stdin
.read_char
.ascii
44 # Read a line from the standard input (`stdin').
45 protected fun gets
: String
47 return stdin
.read_line
51 # File Abstract Stream
54 super NativeFileCapable
55 # The path of the file.
56 readable var _path
: nullable String = null
59 var _file
: nullable NativeFile = null
61 fun file_stat
: FileStat
62 do return _file
.file_stat
end
74 _file
= io_open_read
(_path
.to_cstring
)
82 var i
= _file
.io_close
86 # Fill the internal read buffer. Needed by read operations.
89 var nb
= _file
.io_read
(_buffer
._items
, _buffer
._capacity
)
99 redef readable var _end_reached
: Bool = false
101 # Open the file at `path' for reading.
102 init open
(path
: String)
106 _file
= io_open_read
(_path
.to_cstring
)
107 assert cant_open_file
: _file
!= null
111 private init without_file
do end
123 write_native
(s
.to_cstring
, s
.length
)
126 redef fun is_writable
do return _writable
130 var i
= _file
.io_close
134 # Is the file open in write mode
137 # Write `len' bytes from `native'.
138 private fun write_native
(native
: NativeString, len
: Int)
141 var err
= _file
.io_write
(native
, len
)
144 printn
("Problem in writing : ", err
, " ", len
, "\n")
148 # Open the file at `path' for writing.
149 init open
(path
: String)
151 _file
= io_open_write
(path
.to_cstring
)
152 assert cant_open_file
: _file
!= null
158 private init without_file
do end
161 ###############################################################################
175 _file
= native_stdout
176 _path
= "/dev/stdout"
184 _file
= native_stderr
185 _path
= "/dev/stderr"
190 ###############################################################################
193 # return true if a file with this names exists
194 fun file_exists
: Bool do return to_cstring
.file_exists
196 fun file_stat
: FileStat do return to_cstring
.file_stat
198 fun file_delete
: Bool do return to_cstring
.file_delete
200 fun strip_extension
(ext
: String): String
202 if has_suffix
(ext
) then
203 return substring
(0, length
- ext
.length
)
208 fun basename
(ext
: String): String
210 var pos
= last_index_of_from
('/', _length
- 1)
213 n
= substring_from
(pos
+1)
215 return n
.strip_extension
(ext
)
220 var pos
= last_index_of_from
('/', _length
- 1)
222 return substring
(0, pos
)
228 fun file_path
: String
231 var pos
= last_index_of_from
('/', l
- 1)
233 return substring
(0, pos
)
238 # Create a directory (and all intermediate directories if needed)
241 var dirs
= self.split_with
("/")
242 var path
= new Buffer
243 if dirs
.is_empty
then return
244 if dirs
[0].is_empty
then
245 # it was a starting /
249 if d
.is_empty
then continue
252 path
.to_s
.to_cstring
.file_mkdir
257 redef class NativeString
258 private fun file_exists
: Bool is extern "string_NativeString_NativeString_file_exists_0"
259 private fun file_stat
: FileStat is extern "string_NativeString_NativeString_file_stat_0"
260 private fun file_mkdir
: Bool is extern "string_NativeString_NativeString_file_mkdir_0"
261 private fun file_delete
: Bool is extern "string_NativeString_NativeString_file_delete_0"
266 # This class is system dependent ... must reify the vfs
267 fun mode
: Int is extern "file_FileStat_FileStat_mode_0"
268 fun atime
: Int is extern "file_FileStat_FileStat_atime_0"
269 fun ctime
: Int is extern "file_FileStat_FileStat_ctime_0"
270 fun mtime
: Int is extern "file_FileStat_FileStat_mtime_0"
271 fun size
: Int is extern "file_FileStat_FileStat_size_0"
274 # Instance of this class are standard FILE * pointers
275 private universal NativeFile
277 fun io_read
(buf
: NativeString, len
: Int): Int is extern "file_NativeFile_NativeFile_io_read_2"
278 fun io_write
(buf
: NativeString, len
: Int): Int is extern "file_NativeFile_NativeFile_io_write_2"
279 fun io_close
: Int is extern "file_NativeFile_NativeFile_io_close_0"
280 fun file_stat
: FileStat is extern "file_NativeFile_NativeFile_file_stat_0"
283 private interface NativeFileCapable
284 fun io_open_read
(path
: NativeString): NativeFile is extern "file_NativeFileCapable_NativeFileCapable_io_open_read_1"
285 fun io_open_write
(path
: NativeString): NativeFile is extern "file_NativeFileCapable_NativeFileCapable_io_open_write_1"
286 fun native_stdin
: NativeFile is extern "file_NativeFileCapable_NativeFileCapable_native_stdin_0"
287 fun native_stdout
: NativeFile is extern "file_NativeFileCapable_NativeFileCapable_native_stdout_0"
288 fun native_stderr
: NativeFile is extern "file_NativeFileCapable_NativeFileCapable_native_stderr_0"
292 fun stdin
: IFStream do return once
new Stdin
295 fun stdout
: OFStream do return once
new Stdout
297 # Standard output for error.
298 fun stderr
: OFStream do return once
new Stderr