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Modified most (but not yet all) I/O to always go through sys.stdout or

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sys.stderr or sys.stdin, and to work with any object as long as it has
a write() (respectively readline()) methods.  Some functions that took
a FILE* argument now take an object* argument.
This commit is contained in:
Guido van Rossum 1992-09-25 21:59:05 +00:00
parent 3a40ae4ef3
commit 3165fe6a56
8 changed files with 217 additions and 76 deletions
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48
Python/ceval.c
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@ -176,7 +176,6 @@ eval_code(co, globals, locals, arg)
object *trace = NULL; /* Trace function or NULL */
object *retval; /* Return value iff why == WHY_RETURN */
char *name; /* Name used by some instructions */
FILE *fp; /* Used by print operations */
#ifdef LLTRACE
int lltrace = dictlookup(globals, "__lltrace__") != NULL;
#endif
@ -598,12 +597,12 @@ eval_code(co, globals, locals, arg)
case PRINT_EXPR:
v = POP();
fp = sysgetfile("stdout", stdout);
/* Print value except if procedure result */
if (v != None) {
flushline();
softspace(sysget("stdout"), 1);
err = printobject(v, fp, 0);
x = sysget("stdout");
softspace(x, 1);
err = writeobject(v, x, 0);
flushline();
}
DECREF(v);
@ -611,30 +610,30 @@ eval_code(co, globals, locals, arg)
case PRINT_ITEM:
v = POP();
fp = sysgetfile("stdout", stdout);
if (softspace(sysget("stdout"), 1))
fprintf(fp, " ");
w = sysget("stdout");
if (softspace(w, 1))
writestring(" ", w);
if (is_stringobject(v)) {
char *s = getstringvalue(v);
int len = getstringsize(v);
fwrite(s, 1, len, fp);
if (ferror(fp)) {
err_errno(IOError);
err = -1;
}
else if (len > 0 && s[len-1] == '\n')
softspace(sysget("stdout"), 0);
err = writeobject(v, w, PRINT_RAW);
if (err == 0 && len > 0 && s[len-1] == '\n')
softspace(w, 0);
}
else {
err = printobject(v, fp, 0);
err = writeobject(v, w, 0);
}
DECREF(v);
break;
case PRINT_NEWLINE:
fp = sysgetfile("stdout", stdout);
fprintf(fp, "\n");
softspace(sysget("stdout"), 0);
x = sysget("stdout");
if (x == NULL)
err_setstr(RuntimeError, "lost sys.stdout");
else {
writestring("\n", x);
softspace(x, 0);
}
break;
case BREAK_LOOP:
@ -1395,13 +1394,13 @@ getglobals()
}
void
printtraceback(fp)
FILE *fp;
printtraceback(f)
object *f;
{
object *v = tb_fetch();
if (v != NULL) {
fprintf(fp, "Stack backtrace (innermost last):\n");
tb_print(v, fp);
writestring("Stack backtrace (innermost last):\n", f);
tb_print(v, f);
DECREF(v);
}
}
@ -1410,8 +1409,9 @@ printtraceback(fp)
void
flushline()
{
if (softspace(sysget("stdout"), 0))
fprintf(sysgetfile("stdout", stdout), "\n");
object *f = sysget("stdout");
if (softspace(f, 0))
writestring("\n", f);
}