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Bug fixes to sprintg() and fix to incomplete scang() implementation.

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This commit is contained in:
inmarket 2014-05-12 13:25:54 +10:00
parent 38fb787cbd
commit dfcd7e0e50
1 changed files with 113 additions and 59 deletions
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172
src/gfile/gfile.c
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@ -483,6 +483,8 @@ bool_t gfileEOF(GFILE *f) {
// Special String VMT // Special String VMT
static int StringRead(GFILE *f, void *buf, int size) { static int StringRead(GFILE *f, void *buf, int size) {
(void) size;
// size must be 1 for a complete read // size must be 1 for a complete read
if (!((char *)f->obj)[f->pos]) if (!((char *)f->obj)[f->pos])
return 0; return 0;
@ -490,6 +492,8 @@ bool_t gfileEOF(GFILE *f) {
return 1; return 1;
} }
static int StringWrite(GFILE *f, const void *buf, int size) { static int StringWrite(GFILE *f, const void *buf, int size) {
(void) size;
// size must be 1 for a complete write // size must be 1 for a complete write
((char *)f->obj)[f->pos] = ((char *)buf)[0]; ((char *)f->obj)[f->pos] = ((char *)buf)[0];
return 1; return 1;
@ -569,7 +573,7 @@ bool_t gfileEOF(GFILE *f) {
while (*fmt) { while (*fmt) {
if (*fmt != '%') { if (*fmt != '%') {
gfileWrite(f, fmt, 1); gfileWrite(f, fmt, 1);
ret++; if (--maxlen) return ret; ret++; if (!--maxlen) return ret;
fmt++; fmt++;
continue; continue;
} }
@ -592,24 +596,24 @@ bool_t gfileEOF(GFILE *f) {
while (1) { while (1) {
c = *fmt++; c = *fmt++;
if (c >= '0' && c <= '9') if (c >= '0' && c <= '9') {
c -= '0'; c -= '0';
else if (c == '*') width = width * 10 + c;
c = va_arg(arg, int); } else if (c == '*')
width = va_arg(arg, int);
else else
break; break;
width = width * 10 + c;
} }
if (c == '.') { if (c == '.') {
while (1) { while (1) {
c = *fmt++; c = *fmt++;
if (c >= '0' && c <= '9') if (c >= '0' && c <= '9') {
c -= '0'; c -= '0';
else if (c == '*') precision = precision * 10 + c;
c = va_arg(arg, int); } else if (c == '*')
precision = va_arg(arg, int);
else else
break; break;
precision = precision * 10 + c;
} }
} }
/* Long modifier.*/ /* Long modifier.*/
@ -694,21 +698,21 @@ bool_t gfileEOF(GFILE *f) {
if (width < 0) { if (width < 0) {
if (*s == '-' && filler == '0') { if (*s == '-' && filler == '0') {
gfileWrite(f, s++, 1); gfileWrite(f, s++, 1);
ret++; if (--maxlen) return ret; ret++; if (!--maxlen) return ret;
i--; i--;
} }
do { do {
gfileWrite(f, &filler, 1); gfileWrite(f, &filler, 1);
ret++; if (--maxlen) return ret; ret++; if (!--maxlen) return ret;
} while (++width != 0); } while (++width != 0);
} }
while (--i >= 0) { while (--i >= 0) {
gfileWrite(f, s++, 1); gfileWrite(f, s++, 1);
ret++; if (--maxlen) return ret; ret++; if (!--maxlen) return ret;
} }
while (width) { while (width) {
gfileWrite(f, &filler, 1); gfileWrite(f, &filler, 1);
ret++; if (--maxlen) return ret; ret++; if (!--maxlen) return ret;
width--; width--;
} }
} }
@ -722,9 +726,11 @@ bool_t gfileEOF(GFILE *f) {
va_list ap; va_list ap;
if (maxlen <= 1) { if (maxlen <= 1) {
if (maxlen == 1) if (maxlen == 1) {
*buf = 0; *buf = 0;
return 0; return 0;
}
maxlen += 1;
} }
f.flags = GFILEFLG_OPEN|GFILEFLG_WRITE; f.flags = GFILEFLG_OPEN|GFILEFLG_WRITE;
f.vmt = &StringVMT; f.vmt = &StringVMT;
@ -741,9 +747,11 @@ bool_t gfileEOF(GFILE *f) {
GFILE f; GFILE f;
if (maxlen <= 1) { if (maxlen <= 1) {
if (maxlen == 1) if (maxlen == 1) {
*buf = 0; *buf = 0;
return 0; return 0;
}
maxlen += 1;
} }
f.flags = GFILEFLG_OPEN|GFILEFLG_WRITE; f.flags = GFILEFLG_OPEN|GFILEFLG_WRITE;
f.vmt = &StringVMT; f.vmt = &StringVMT;
@ -772,9 +780,10 @@ bool_t gfileEOF(GFILE *f) {
int vfscang(GFILE *f, const char *fmt, va_list arg) { int vfscang(GFILE *f, const char *fmt, va_list arg) {
int res, width, size, base; int res, width, size, base;
unsigned long num;
char c; char c;
bool_t assign; bool_t assign, negate;
void *p; char *p;
for(res = 0; *fmt; fmt++) { for(res = 0; *fmt; fmt++) {
switch(*fmt) { switch(*fmt) {
@ -784,8 +793,10 @@ bool_t gfileEOF(GFILE *f) {
case '%': case '%':
fmt++; fmt++;
assign = TRUE; assign = TRUE;
negate = FALSE;
width = 0; width = 0;
size = 1; size = 1;
num = 0;
if (*fmt == '*') { if (*fmt == '*') {
fmt++; fmt++;
@ -823,13 +834,13 @@ bool_t gfileEOF(GFILE *f) {
if (!gfileRead(f, &c, 1)) return res; if (!gfileRead(f, &c, 1)) return res;
} }
if (assign) { if (assign) {
p = va_arg(ap, char *); p = va_arg(arg, char *);
res++; res++;
*((char *)p)++ = c; *p++ = c;
} }
while(--width) { while(--width) {
if (!gfileRead(f, &c, 1)) return res; if (!gfileRead(f, &c, 1)) return res;
if (assign) *((char *)p)++ = c; if (assign) *p++ = c;
} }
break; break;
case 's': case 's':
@ -842,9 +853,9 @@ bool_t gfileEOF(GFILE *f) {
break; break;
} }
if (assign) { if (assign) {
p = va_arg(ap, char *); p = va_arg(arg, char *);
res++; res++;
*((char *)p)++ = c; *p++ = c;
} }
if (width) { if (width) {
while(--width) { while(--width) {
@ -852,7 +863,7 @@ bool_t gfileEOF(GFILE *f) {
if (assign) *((char *)p) = 0; if (assign) *((char *)p) = 0;
return res; return res;
} }
if (assign) *((char *)p)++ = c; if (assign) *p++ = c;
} }
} else { } else {
while(1) { while(1) {
@ -864,50 +875,93 @@ bool_t gfileEOF(GFILE *f) {
case ' ': case '\t': case '\r': case ' ': case '\t': case '\r':
case '\n': case '\v': case '\f': break; case '\n': case '\v': case '\f': break;
default: default:
if (assign) *((char *)p)++ = c; if (assign) *p++ = c;
continue; continue;
} }
break; break;
} }
//ungetch(c); //ungetch(c);
} }
if (assign) *((char *)p) = 0; if (assign) *p = 0;
break; break;
case 'd': case 'd': base = 10; goto getnum;
case 'i': case 'i': base = -1; goto getnum;
case 'o': case 'o': base = 8; goto getnum;
case 'u': case 'u': base = 10; goto getnum;
case 'x': case 'x': base = 16; goto getnum;
case 'b': case 'b': base = 2;
/* getnum:
while (isspace (*buf)) while(1) {
buf++; if (!gfileRead(f, &c, 1)) return res;
if (*s == 'd' || *s == 'u') switch(c) {
base = 10; case ' ': case '\t': case '\r':
else if (*s == 'x') case '\n': case '\v': case '\f': continue;
base = 16; }
else if (*s == 'o') break;
base = 8;
else if (*s == 'b')
base = 2;
if (!width) {
if (isspace (*(s + 1)) || *(s + 1) == 0)
width = strcspn (buf, ISSPACE);
else
width = strchr (buf, *(s + 1)) - buf;
} }
strncpy (tmp, buf, width); if (c == '-' && *fmt != 'u') {
tmp[width] = '\0'; negate = TRUE;
buf += width; if ((width && !--width) || !gfileRead(f, &c, 1)) return res;
if (!noassign) }
atob (va_arg (ap, u_int32_t *), tmp, base); if (base == -1) {
if (c == '0') {
if ((width && !--width) || !gfileRead(f, &c, 1)) goto assignnum;
switch(c) {
case 'x': case 'X':
base = 16;
if ((width && !--width) || !gfileRead(f, &c, 1)) return res;
break;
case 'b': case 'B':
base = 2;
if ((width && !--width) || !gfileRead(f, &c, 1)) return res;
break;
default:
base = 8;
break;
}
} else
base = 10;
}
while(1) {
if (c >= '0' && c <= '9' && c - '0' < base)
num = num * base + (c - '0');
else if (c >= 'A' && c <= 'F' && base == 16)
num = num * base + (c - ('A'-10));
else if (c >= 'a' && c <= 'f' && base == 16)
num = num * base + (c - ('a'-10));
else {
// ungetch(c)
break;
}
if ((width && !--width) || !gfileRead(f, &c, 1))
break;
}
assignnum:
if (negate)
num = -num;
if (assign) {
switch(size) {
case 0: // short
p = (char *)va_arg(arg, short *);
res++;
*((short *)p) = (short)num;
case 1: // int
p = (char *)va_arg(arg, int *);
res++;
*((int *)p) = (int)num;
case 2: case 3: // long
p = (char *)va_arg(arg, long *);
res++;
*((long *)p) = (long)num;
}
} }
if (!noassign) break;
count++;
*/
#if GFILE_ALLOW_FLOATS #if GFILE_ALLOW_FLOATS
case 'e': case 'f': case 'g': case 'e': case 'f': case 'g':
// TODO
#endif #endif
default: default:
return res; return res;
@ -941,7 +995,7 @@ bool_t gfileEOF(GFILE *f) {
f.flags = GFILEFLG_OPEN|GFILEFLG_READ; f.flags = GFILEFLG_OPEN|GFILEFLG_READ;
f.vmt = &StringVMT; f.vmt = &StringVMT;
f.pos = 0; f.pos = 0;
f.obj = buf; f.obj = (void *)buf;
va_start(ap, fmt); va_start(ap, fmt);
res = vfscang(&f, fmt, ap); res = vfscang(&f, fmt, ap);
va_end(ap); va_end(ap);
@ -955,7 +1009,7 @@ bool_t gfileEOF(GFILE *f) {
f.flags = GFILEFLG_OPEN|GFILEFLG_READ; f.flags = GFILEFLG_OPEN|GFILEFLG_READ;
f.vmt = &StringVMT; f.vmt = &StringVMT;
f.pos = 0; f.pos = 0;
f.obj = buf; f.obj = (void *)buf;
res = vfscang(&f, fmt, arg); res = vfscang(&f, fmt, arg);
return res; return res;
} }