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-rw-r--r--src/fileobject.c384
1 files changed, 192 insertions, 192 deletions
diff --git a/src/fileobject.c b/src/fileobject.c
index 640e27b..09f19e5 100644
--- a/src/fileobject.c
+++ b/src/fileobject.c
@@ -2,12 +2,12 @@
Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
Netherlands.
- All Rights Reserved
+ All Rights Reserved
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in
+both that copyright notice and this permission notice appear in
supporting documentation, and that the names of Stichting Mathematisch
Centrum or CWI not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior permission.
@@ -24,11 +24,11 @@ OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
/* File object implementation */
-/* XXX This should become a built-in module 'io'. It should support more
- functionality, better exception handling for invalid calls, etc.
- (Especially reading on a write-only file or vice versa!)
- It should also cooperate with posix to support popen(), which should
- share most code but have a special close function. */
+/* XXX This should become a built-in module 'io'. It should support more
+ functionality, better exception handling for invalid calls, etc.
+ (Especially reading on a write-only file or vice versa!)
+ It should also cooperate with posix to support popen(), which should
+ share most code but have a special close function. */
#include "allobjects.h"
@@ -38,256 +38,256 @@ extern int errno;
#endif
typedef struct {
- OB_HEAD
- FILE *f_fp;
- object *f_name;
- object *f_mode;
- /* XXX Should move the 'need space' on printing flag here */
+ OB_HEAD
+ FILE *f_fp;
+ object *f_name;
+ object *f_mode;
+ /* XXX Should move the 'need space' on printing flag here */
} fileobject;
FILE *
getfilefile(f)
- object *f;
+ object *f;
{
- if (!is_fileobject(f)) {
- err_badcall();
- return NULL;
- }
- return ((fileobject *)f)->f_fp;
+ if (!is_fileobject(f)) {
+ err_badcall();
+ return NULL;
+ }
+ return ((fileobject *)f)->f_fp;
}
object *
newopenfileobject(fp, name, mode)
- FILE *fp;
- char *name;
- char *mode;
+ FILE *fp;
+ char *name;
+ char *mode;
{
- fileobject *f = NEWOBJ(fileobject, &Filetype);
- if (f == NULL)
- return NULL;
- f->f_fp = NULL;
- f->f_name = newstringobject(name);
- f->f_mode = newstringobject(mode);
- if (f->f_name == NULL || f->f_mode == NULL) {
- DECREF(f);
- return NULL;
- }
- f->f_fp = fp;
- return (object *) f;
+ fileobject *f = NEWOBJ(fileobject, &Filetype);
+ if (f == NULL)
+ return NULL;
+ f->f_fp = NULL;
+ f->f_name = newstringobject(name);
+ f->f_mode = newstringobject(mode);
+ if (f->f_name == NULL || f->f_mode == NULL) {
+ DECREF(f);
+ return NULL;
+ }
+ f->f_fp = fp;
+ return (object *) f;
}
object *
newfileobject(name, mode)
- char *name, *mode;
+ char *name, *mode;
{
- fileobject *f;
- FILE *fp;
- f = (fileobject *) newopenfileobject((FILE *)NULL, name, mode);
- if (f == NULL)
- return NULL;
+ fileobject *f;
+ FILE *fp;
+ f = (fileobject *) newopenfileobject((FILE *)NULL, name, mode);
+ if (f == NULL)
+ return NULL;
#ifdef THINK_C
- if (*mode == '*') {
- FILE *fopenRF();
- f->f_fp = fopenRF(name, mode+1);
- }
- else
+ if (*mode == '*') {
+ FILE *fopenRF();
+ f->f_fp = fopenRF(name, mode+1);
+ }
+ else
#endif
- f->f_fp = fopen(name, mode);
- if (f->f_fp == NULL) {
- err_errno(RuntimeError);
- DECREF(f);
- return NULL;
- }
- return (object *)f;
+ f->f_fp = fopen(name, mode);
+ if (f->f_fp == NULL) {
+ err_errno(RuntimeError);
+ DECREF(f);
+ return NULL;
+ }
+ return (object *)f;
}
/* Methods */
static void
file_dealloc(f)
- fileobject *f;
+ fileobject *f;
{
- if (f->f_fp != NULL)
- fclose(f->f_fp);
- if (f->f_name != NULL)
- DECREF(f->f_name);
- if (f->f_mode != NULL)
- DECREF(f->f_mode);
- free((char *)f);
+ if (f->f_fp != NULL)
+ fclose(f->f_fp);
+ if (f->f_name != NULL)
+ DECREF(f->f_name);
+ if (f->f_mode != NULL)
+ DECREF(f->f_mode);
+ free((char *)f);
}
static void
file_print(f, fp, flags)
- fileobject *f;
- FILE *fp;
- int flags;
+ fileobject *f;
+ FILE *fp;
+ int flags;
{
- fprintf(fp, "<%s file ", f->f_fp == NULL ? "closed" : "open");
- printobject(f->f_name, fp, flags);
- fprintf(fp, ", mode ");
- printobject(f->f_mode, fp, flags);
- fprintf(fp, ">");
+ fprintf(fp, "<%s file ", f->f_fp == NULL ? "closed" : "open");
+ printobject(f->f_name, fp, flags);
+ fprintf(fp, ", mode ");
+ printobject(f->f_mode, fp, flags);
+ fprintf(fp, ">");
}
static object *
file_repr(f)
- fileobject *f;
+ fileobject *f;
{
- char buf[300];
- /* XXX This differs from file_print if the filename contains
- quotes or other funny characters. */
- sprintf(buf, "<%s file '%.256s', mode '%.10s'>",
- f->f_fp == NULL ? "closed" : "open",
- getstringvalue(f->f_name),
- getstringvalue(f->f_mode));
- return newstringobject(buf);
+ char buf[300];
+ /* XXX This differs from file_print if the filename contains
+ quotes or other funny characters. */
+ sprintf(buf, "<%s file '%.256s', mode '%.10s'>",
+ f->f_fp == NULL ? "closed" : "open",
+ getstringvalue(f->f_name),
+ getstringvalue(f->f_mode));
+ return newstringobject(buf);
}
static object *
file_close(f, args)
- fileobject *f;
- object *args;
+ fileobject *f;
+ object *args;
{
- if (args != NULL) {
- err_badarg();
- return NULL;
- }
- if (f->f_fp != NULL) {
- fclose(f->f_fp);
- f->f_fp = NULL;
- }
- INCREF(None);
- return None;
+ if (args != NULL) {
+ err_badarg();
+ return NULL;
+ }
+ if (f->f_fp != NULL) {
+ fclose(f->f_fp);
+ f->f_fp = NULL;
+ }
+ INCREF(None);
+ return None;
}
static object *
file_read(f, args)
- fileobject *f;
- object *args;
+ fileobject *f;
+ object *args;
{
- int n;
- object *v;
- if (f->f_fp == NULL) {
- err_badarg();
- return NULL;
- }
- if (args == NULL || !is_intobject(args)) {
- err_badarg();
- return NULL;
- }
- n = getintvalue(args);
- if (n < 0) {
- err_badarg();
- return NULL;
- }
- v = newsizedstringobject((char *)NULL, n);
- if (v == NULL)
- return NULL;
- n = fread(getstringvalue(v), 1, n, f->f_fp);
- /* EOF is reported as an empty string */
- /* XXX should detect real I/O errors? */
- resizestring(&v, n);
- return v;
+ int n;
+ object *v;
+ if (f->f_fp == NULL) {
+ err_badarg();
+ return NULL;
+ }
+ if (args == NULL || !is_intobject(args)) {
+ err_badarg();
+ return NULL;
+ }
+ n = getintvalue(args);
+ if (n < 0) {
+ err_badarg();
+ return NULL;
+ }
+ v = newsizedstringobject((char *)NULL, n);
+ if (v == NULL)
+ return NULL;
+ n = fread(getstringvalue(v), 1, n, f->f_fp);
+ /* EOF is reported as an empty string */
+ /* XXX should detect real I/O errors? */
+ resizestring(&v, n);
+ return v;
}
/* XXX Should this be unified with raw_input()? */
static object *
file_readline(f, args)
- fileobject *f;
- object *args;
+ fileobject *f;
+ object *args;
{
- int n;
- object *v;
- if (f->f_fp == NULL) {
- err_badarg();
- return NULL;
- }
- if (args == NULL) {
- n = 10000; /* XXX should really be unlimited */
- }
- else if (is_intobject(args)) {
- n = getintvalue(args);
- if (n < 0) {
- err_badarg();
- return NULL;
- }
- }
- else {
- err_badarg();
- return NULL;
- }
- v = newsizedstringobject((char *)NULL, n);
- if (v == NULL)
- return NULL;
+ int n;
+ object *v;
+ if (f->f_fp == NULL) {
+ err_badarg();
+ return NULL;
+ }
+ if (args == NULL) {
+ n = 10000; /* XXX should really be unlimited */
+ }
+ else if (is_intobject(args)) {
+ n = getintvalue(args);
+ if (n < 0) {
+ err_badarg();
+ return NULL;
+ }
+ }
+ else {
+ err_badarg();
+ return NULL;
+ }
+ v = newsizedstringobject((char *)NULL, n);
+ if (v == NULL)
+ return NULL;
#ifndef THINK_C_3_0
- /* XXX Think C 3.0 wrongly reads up to n characters... */
- n = n+1;
+ /* XXX Think C 3.0 wrongly reads up to n characters... */
+ n = n+1;
#endif
- if (fgets(getstringvalue(v), n, f->f_fp) == NULL) {
- /* EOF is reported as an empty string */
- /* XXX should detect real I/O errors? */
- n = 0;
- }
- else {
- n = strlen(getstringvalue(v));
- }
- resizestring(&v, n);
- return v;
+ if (fgets(getstringvalue(v), n, f->f_fp) == NULL) {
+ /* EOF is reported as an empty string */
+ /* XXX should detect real I/O errors? */
+ n = 0;
+ }
+ else {
+ n = strlen(getstringvalue(v));
+ }
+ resizestring(&v, n);
+ return v;
}
static object *
file_write(f, args)
- fileobject *f;
- object *args;
+ fileobject *f;
+ object *args;
{
- int n, n2;
- if (f->f_fp == NULL) {
- err_badarg();
- return NULL;
- }
- if (args == NULL || !is_stringobject(args)) {
- err_badarg();
- return NULL;
- }
- errno = 0;
- n2 = fwrite(getstringvalue(args), 1, n = getstringsize(args), f->f_fp);
- if (n2 != n) {
- if (errno == 0)
- errno = EIO;
- err_errno(RuntimeError);
- return NULL;
- }
- INCREF(None);
- return None;
+ int n, n2;
+ if (f->f_fp == NULL) {
+ err_badarg();
+ return NULL;
+ }
+ if (args == NULL || !is_stringobject(args)) {
+ err_badarg();
+ return NULL;
+ }
+ errno = 0;
+ n2 = fwrite(getstringvalue(args), 1, n = getstringsize(args), f->f_fp);
+ if (n2 != n) {
+ if (errno == 0)
+ errno = EIO;
+ err_errno(RuntimeError);
+ return NULL;
+ }
+ INCREF(None);
+ return None;
}
static struct methodlist file_methods[] = {
- {"write", file_write},
- {"read", file_read},
- {"readline", file_readline},
- {"close", file_close},
- {NULL, NULL} /* sentinel */
+ {"write", file_write},
+ {"read", file_read},
+ {"readline", file_readline},
+ {"close", file_close},
+ {NULL, NULL} /* sentinel */
};
static object *
file_getattr(f, name)
- fileobject *f;
- char *name;
+ fileobject *f;
+ char *name;
{
- return findmethod(file_methods, (object *)f, name);
+ return findmethod(file_methods, (object *)f, name);
}
typeobject Filetype = {
- OB_HEAD_INIT(&Typetype)
- 0,
- "file",
- sizeof(fileobject),
- 0,
- file_dealloc, /*tp_dealloc*/
- file_print, /*tp_print*/
- file_getattr, /*tp_getattr*/
- 0, /*tp_setattr*/
- 0, /*tp_compare*/
- file_repr, /*tp_repr*/
+ OB_HEAD_INIT(&Typetype)
+ 0,
+ "file",
+ sizeof(fileobject),
+ 0,
+ file_dealloc, /*tp_dealloc*/
+ file_print, /*tp_print*/
+ file_getattr, /*tp_getattr*/
+ 0, /*tp_setattr*/
+ 0, /*tp_compare*/
+ file_repr, /*tp_repr*/
};
generated by cgit v1.2.3 (git 2.25.1) at 2026-06-17 13:25:52 +0000