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new function for file input. rewind the filedescriptor to the current

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Tue Oct 27 07:25:53 1998  Tim Janik  <timj@gtk.org>

        * glib.h:
        * gscanner.c:
        (g_scanner_sync_file_offset): new function for file input.
        rewind the filedescriptor to the current buffer position and blow
        the file read ahead buffer. usefull for third party uses of our
        filedescriptor, which hooks onto the current scanning position.
        (this became neccessary with the implementation of buffered
        reads).
        (g_scanner_input_file):
        (g_scanner_input_text): automatically blow the read ahead buffer.
        (g_scanner_get_char): blow the read ahead buffer when the end of
        input is reached, i.e. a '\000' char is read.
This commit is contained in:
Tim Janik 1998-10-28 01:32:54 +00:00 committed by Tim Janik
parent 167b4fbbfc
commit 7428120d37
12 changed files with 200 additions and 0 deletions
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15
ChangeLog
View File

@ -1,3 +1,18 @@
Tue Oct 27 07:25:53 1998 Tim Janik <timj@gtk.org>
* glib.h:
* gscanner.c:
(g_scanner_sync_file_offset): new function for file input.
rewind the filedescriptor to the current buffer position and blow
the file read ahead buffer. usefull for third party uses of our
filedescriptor, which hooks onto the current scanning position.
(this became neccessary with the implementation of buffered
reads).
(g_scanner_input_file):
(g_scanner_input_text): automatically blow the read ahead buffer.
(g_scanner_get_char): blow the read ahead buffer when the end of
input is reached, i.e. a '\000' char is read.
Tue Oct 27 00:27:31 PST 1998 Manish Singh <yosh@gimp.org>
* glib.h: get rid of duplicate #g_htonl and friends in the

15
ChangeLog.pre-2-0
View File

@ -1,3 +1,18 @@
Tue Oct 27 07:25:53 1998 Tim Janik <timj@gtk.org>
* glib.h:
* gscanner.c:
(g_scanner_sync_file_offset): new function for file input.
rewind the filedescriptor to the current buffer position and blow
the file read ahead buffer. usefull for third party uses of our
filedescriptor, which hooks onto the current scanning position.
(this became neccessary with the implementation of buffered
reads).
(g_scanner_input_file):
(g_scanner_input_text): automatically blow the read ahead buffer.
(g_scanner_get_char): blow the read ahead buffer when the end of
input is reached, i.e. a '\000' char is read.
Tue Oct 27 00:27:31 PST 1998 Manish Singh <yosh@gimp.org>
* glib.h: get rid of duplicate #g_htonl and friends in the

15
ChangeLog.pre-2-10
View File

@ -1,3 +1,18 @@
Tue Oct 27 07:25:53 1998 Tim Janik <timj@gtk.org>
* glib.h:
* gscanner.c:
(g_scanner_sync_file_offset): new function for file input.
rewind the filedescriptor to the current buffer position and blow
the file read ahead buffer. usefull for third party uses of our
filedescriptor, which hooks onto the current scanning position.
(this became neccessary with the implementation of buffered
reads).
(g_scanner_input_file):
(g_scanner_input_text): automatically blow the read ahead buffer.
(g_scanner_get_char): blow the read ahead buffer when the end of
input is reached, i.e. a '\000' char is read.
Tue Oct 27 00:27:31 PST 1998 Manish Singh <yosh@gimp.org>
* glib.h: get rid of duplicate #g_htonl and friends in the

15
ChangeLog.pre-2-12
View File

@ -1,3 +1,18 @@
Tue Oct 27 07:25:53 1998 Tim Janik <timj@gtk.org>
* glib.h:
* gscanner.c:
(g_scanner_sync_file_offset): new function for file input.
rewind the filedescriptor to the current buffer position and blow
the file read ahead buffer. usefull for third party uses of our
filedescriptor, which hooks onto the current scanning position.
(this became neccessary with the implementation of buffered
reads).
(g_scanner_input_file):
(g_scanner_input_text): automatically blow the read ahead buffer.
(g_scanner_get_char): blow the read ahead buffer when the end of
input is reached, i.e. a '\000' char is read.
Tue Oct 27 00:27:31 PST 1998 Manish Singh <yosh@gimp.org>
* glib.h: get rid of duplicate #g_htonl and friends in the

15
ChangeLog.pre-2-2
View File

@ -1,3 +1,18 @@
Tue Oct 27 07:25:53 1998 Tim Janik <timj@gtk.org>
* glib.h:
* gscanner.c:
(g_scanner_sync_file_offset): new function for file input.
rewind the filedescriptor to the current buffer position and blow
the file read ahead buffer. usefull for third party uses of our
filedescriptor, which hooks onto the current scanning position.
(this became neccessary with the implementation of buffered
reads).
(g_scanner_input_file):
(g_scanner_input_text): automatically blow the read ahead buffer.
(g_scanner_get_char): blow the read ahead buffer when the end of
input is reached, i.e. a '\000' char is read.
Tue Oct 27 00:27:31 PST 1998 Manish Singh <yosh@gimp.org>
* glib.h: get rid of duplicate #g_htonl and friends in the

15
ChangeLog.pre-2-4
View File

@ -1,3 +1,18 @@
Tue Oct 27 07:25:53 1998 Tim Janik <timj@gtk.org>
* glib.h:
* gscanner.c:
(g_scanner_sync_file_offset): new function for file input.
rewind the filedescriptor to the current buffer position and blow
the file read ahead buffer. usefull for third party uses of our
filedescriptor, which hooks onto the current scanning position.
(this became neccessary with the implementation of buffered
reads).
(g_scanner_input_file):
(g_scanner_input_text): automatically blow the read ahead buffer.
(g_scanner_get_char): blow the read ahead buffer when the end of
input is reached, i.e. a '\000' char is read.
Tue Oct 27 00:27:31 PST 1998 Manish Singh <yosh@gimp.org>
* glib.h: get rid of duplicate #g_htonl and friends in the

15
ChangeLog.pre-2-6
View File

@ -1,3 +1,18 @@
Tue Oct 27 07:25:53 1998 Tim Janik <timj@gtk.org>
* glib.h:
* gscanner.c:
(g_scanner_sync_file_offset): new function for file input.
rewind the filedescriptor to the current buffer position and blow
the file read ahead buffer. usefull for third party uses of our
filedescriptor, which hooks onto the current scanning position.
(this became neccessary with the implementation of buffered
reads).
(g_scanner_input_file):
(g_scanner_input_text): automatically blow the read ahead buffer.
(g_scanner_get_char): blow the read ahead buffer when the end of
input is reached, i.e. a '\000' char is read.
Tue Oct 27 00:27:31 PST 1998 Manish Singh <yosh@gimp.org>
* glib.h: get rid of duplicate #g_htonl and friends in the

15
ChangeLog.pre-2-8
View File

@ -1,3 +1,18 @@
Tue Oct 27 07:25:53 1998 Tim Janik <timj@gtk.org>
* glib.h:
* gscanner.c:
(g_scanner_sync_file_offset): new function for file input.
rewind the filedescriptor to the current buffer position and blow
the file read ahead buffer. usefull for third party uses of our
filedescriptor, which hooks onto the current scanning position.
(this became neccessary with the implementation of buffered
reads).
(g_scanner_input_file):
(g_scanner_input_text): automatically blow the read ahead buffer.
(g_scanner_get_char): blow the read ahead buffer when the end of
input is reached, i.e. a '\000' char is read.
Tue Oct 27 00:27:31 PST 1998 Manish Singh <yosh@gimp.org>
* glib.h: get rid of duplicate #g_htonl and friends in the

1
glib.h
View File

@ -2085,6 +2085,7 @@ GScanner* g_scanner_new (GScannerConfig *config_templ);
void g_scanner_destroy (GScanner *scanner);
void g_scanner_input_file (GScanner *scanner,
gint input_fd);
void g_scanner_sync_file_offset (GScanner *scanner);
void g_scanner_input_text (GScanner *scanner,
const gchar *text,
guint text_len);

1
glib/glib.h
View File

@ -2085,6 +2085,7 @@ GScanner* g_scanner_new (GScannerConfig *config_templ);
void g_scanner_destroy (GScanner *scanner);
void g_scanner_input_file (GScanner *scanner,
gint input_fd);
void g_scanner_sync_file_offset (GScanner *scanner);
void g_scanner_input_text (GScanner *scanner,
const gchar *text,
guint text_len);

39
glib/gscanner.c
View File

@ -658,6 +658,9 @@ g_scanner_input_file (GScanner *scanner,
g_return_if_fail (scanner != NULL);
g_return_if_fail (input_fd >= 0);
if (scanner->input_fd >= 0)
g_scanner_sync_file_offset (scanner);
scanner->token = G_TOKEN_NONE;
scanner->value.v_int = 0;
scanner->line = 1;
@ -683,6 +686,9 @@ g_scanner_input_text (GScanner *scanner,
else
text = NULL;
if (scanner->input_fd >= 0)
g_scanner_sync_file_offset (scanner);
scanner->token = G_TOKEN_NONE;
scanner->value.v_int = 0;
scanner->line = 1;
@ -737,6 +743,33 @@ g_scanner_peek_next_char (GScanner *scanner)
return 0;
}
void
g_scanner_sync_file_offset (GScanner *scanner)
{
g_return_if_fail (scanner != NULL);
/* for file input, rewind the filedescriptor to the current
* buffer position and blow the file read ahead buffer. usefull for
* third party uses of our filedescriptor, which hooks onto the current
* scanning position.
*/
if (scanner->input_fd >= 0 && scanner->text_end > scanner->text)
{
gint buffered;
buffered = scanner->text_end - scanner->text;
if (lseek (scanner->input_fd, - buffered, SEEK_CUR) >= 0)
{
/* we succeeded, blow our buffer's contents now */
scanner->text = NULL;
scanner->text_end = NULL;
}
else
errno = 0;
}
}
static guchar
g_scanner_get_char (GScanner *scanner,
guint *line_p,
@ -768,6 +801,12 @@ g_scanner_get_char (GScanner *scanner,
scanner->text = buffer + 1;
scanner->text_end = buffer + count;
fchar = *buffer;
if (!fchar)
{
g_scanner_sync_file_offset (scanner);
scanner->text_end = scanner->text;
scanner->input_fd = -1;
}
}
}
else

39
gscanner.c
View File

@ -658,6 +658,9 @@ g_scanner_input_file (GScanner *scanner,
g_return_if_fail (scanner != NULL);
g_return_if_fail (input_fd >= 0);
if (scanner->input_fd >= 0)
g_scanner_sync_file_offset (scanner);
scanner->token = G_TOKEN_NONE;
scanner->value.v_int = 0;
scanner->line = 1;
@ -683,6 +686,9 @@ g_scanner_input_text (GScanner *scanner,
else
text = NULL;
if (scanner->input_fd >= 0)
g_scanner_sync_file_offset (scanner);
scanner->token = G_TOKEN_NONE;
scanner->value.v_int = 0;
scanner->line = 1;
@ -737,6 +743,33 @@ g_scanner_peek_next_char (GScanner *scanner)
return 0;
}
void
g_scanner_sync_file_offset (GScanner *scanner)
{
g_return_if_fail (scanner != NULL);
/* for file input, rewind the filedescriptor to the current
* buffer position and blow the file read ahead buffer. usefull for
* third party uses of our filedescriptor, which hooks onto the current
* scanning position.
*/
if (scanner->input_fd >= 0 && scanner->text_end > scanner->text)
{
gint buffered;
buffered = scanner->text_end - scanner->text;
if (lseek (scanner->input_fd, - buffered, SEEK_CUR) >= 0)
{
/* we succeeded, blow our buffer's contents now */
scanner->text = NULL;
scanner->text_end = NULL;
}
else
errno = 0;
}
}
static guchar
g_scanner_get_char (GScanner *scanner,
guint *line_p,
@ -768,6 +801,12 @@ g_scanner_get_char (GScanner *scanner,
scanner->text = buffer + 1;
scanner->text_end = buffer + count;
fchar = *buffer;
if (!fchar)
{
g_scanner_sync_file_offset (scanner);
scanner->text_end = scanner->text;
scanner->input_fd = -1;
}
}
}
else