Mercurial > hg > xemacs-beta
annotate netinstall/nio-file.cc @ 4549:68d1ca56cffa
First part of interactive checks that coding systems encode regions.
2008-01-21 Aidan Kehoe <kehoea@parhasard.net>
* coding.el (decode-coding-string):
(encode-coding-string): Accept GNU's NOCOPY argument for
these. Todo; write compiler macros to use it.
(query-coding-warning-face): New face, to show unencodable
characters.
(default-query-coding-region-safe-charset-skip-chars-map):
New variable, a cache used by #'default-query-coding-region.
(default-query-coding-region): Default implementation of
#'query-coding-region, using the safe-charsets and safe-chars
coding systemproperties.
(query-coding-region): New function; can a given coding system
encode a given region?
(query-coding-string): New function; can a given coding system
encode a given string?
(unencodable-char-position): Function API taken from GNU; return
the first unencodable position given a string and coding system.
(encode-coding-char): Function API taken from GNU; return CHAR
encoded using CODING-SYSTEM, or nil if CODING-SYSTEM would trash
CHAR.
((unless (featurep 'mule)): Override the default
query-coding-region implementation on non-Mule.
* mule/mule-coding.el (make-8-bit-generate-helper): Eliminate a
duplicate comment.
(make-8-bit-choose-category): Simplify implementation.
(8-bit-fixed-query-coding-region): Implementation of
#'query-coding-region for coding systems created with
#'make-8-bit-coding-system.
(make-8-bit-coding-system): Initialise the #'query-coding-region
implementation for these character sets.
(make-8-bit-coding-system): Ditto for the compiler macro version
of this function.
* unicode.el (unicode-query-coding-skip-chars-arg): New variable,
used by unicode-query-coding-region, initialised in
mule/general-late.el.
(unicode-query-coding-region): New function, the
#'query-coding-region implementation for Unicode coding systems.
Initialise the query-coding-function property for the Unicode
coding systems to #'unicode-query-coding-region.
* mule/mule-charset.el (charset-skip-chars-string): New
function. Return a #'skip-chars-forward argument that skips all
characters in CHARSET.
(map-charset-chars): Function synced from GNU, modified to work
with XEmacs. Map FUNC across the int value charset ranges of
CHARSET.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Mon, 21 Jan 2008 22:51:21 +0100 |
| parents | 3078fd1074e8 |
| children |
| rev | line source |
|---|---|
| 448 | 1 /* |
| 2 * Copyright (c) 2000, Red Hat, Inc. | |
| 3 * | |
| 4 * This program is free software; you can redistribute it and/or modify | |
| 5 * it under the terms of the GNU General Public License as published by | |
| 6 * the Free Software Foundation; either version 2 of the License, or | |
| 7 * (at your option) any later version. | |
| 8 * | |
| 9 * A copy of the GNU General Public License can be found at | |
| 10 * http://www.gnu.org/ | |
| 11 * | |
| 12 * Written by DJ Delorie <dj@cygnus.com> | |
| 13 * | |
| 14 */ | |
| 15 | |
| 16 /* The purpose of this file is to manage access to files stored on the | |
| 17 local disk (i.e. "downloading" setup.ini). Called from netio.cc */ | |
| 18 | |
| 19 #include <stdio.h> | |
| 20 #include <sys/types.h> | |
| 21 #include <sys/stat.h> | |
| 22 #include <errno.h> | |
| 23 #include "win32.h" | |
| 24 #include "netio.h" | |
| 25 #include "nio-file.h" | |
| 26 #include "resource.h" | |
| 27 #include "msg.h" | |
| 28 | |
| 29 NetIO_File::NetIO_File (char *Purl) | |
| 30 : NetIO (Purl) | |
| 31 { | |
| 32 struct stat s; | |
| 33 fd = fopen (path, "rb"); | |
| 34 if (fd) | |
| 35 { | |
| 36 stat (path, &s); | |
| 37 file_size = s.st_size; | |
| 38 } | |
| 39 else | |
| 40 { | |
| 41 char *err = strerror (errno); | |
| 42 if (!err) | |
| 43 err = "(unknown error)"; | |
| 44 note (IDS_ERR_OPEN_READ, path, err); | |
| 45 } | |
| 46 } | |
| 47 | |
| 48 NetIO_File::~NetIO_File () | |
| 49 { | |
| 50 if (fd) | |
| 51 fclose ((FILE *)fd); | |
| 52 } | |
| 53 | |
| 54 int | |
| 55 NetIO_File::ok () | |
| 56 { | |
| 57 return fd ? 1 : 0; | |
| 58 } | |
| 59 | |
| 60 int | |
| 61 NetIO_File::read (char *buf, int nbytes) | |
| 62 { | |
| 63 return fread (buf, 1, nbytes, (FILE *)fd); | |
| 64 } |