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[/] [eco32/] [trunk/] [lcc/] [src/] [output.c] - Rev 149
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#include "c.h" static char rcsid[] = "$Id: output.c,v 1.1 2002/08/28 23:12:45 drh Exp $"; static char *outs(const char *str, FILE *f, char *bp) { if (f) fputs(str, f); else while (*bp = *str++) bp++; return bp; } static char *outd(long n, FILE *f, char *bp) { unsigned long m; char buf[25], *s = buf + sizeof buf; *--s = '\0'; if (n < 0) m = -n; else m = n; do *--s = m%10 + '0'; while ((m /= 10) != 0); if (n < 0) *--s = '-'; return outs(s, f, bp); } static char *outu(unsigned long n, int base, FILE *f, char *bp) { char buf[25], *s = buf + sizeof buf; *--s = '\0'; do *--s = "0123456789abcdef"[n%base]; while ((n /= base) != 0); return outs(s, f, bp); } void print(const char *fmt, ...) { va_list ap; va_start(ap, fmt); vfprint(stdout, NULL, fmt, ap); va_end(ap); } /* fprint - formatted output to f */ void fprint(FILE *f, const char *fmt, ...) { va_list ap; va_start(ap, fmt); vfprint(f, NULL, fmt, ap); va_end(ap); } /* stringf - formatted output to a saved string */ char *stringf(const char *fmt, ...) { char buf[1024]; va_list ap; va_start(ap, fmt); vfprint(NULL, buf, fmt, ap); va_end(ap); return string(buf); } /* vfprint - formatted output to f or string bp */ void vfprint(FILE *f, char *bp, const char *fmt, va_list ap) { for (; *fmt; fmt++) if (*fmt == '%') switch (*++fmt) { case 'd': bp = outd(va_arg(ap, int), f, bp); break; case 'D': bp = outd(va_arg(ap, long), f, bp); break; case 'U': bp = outu(va_arg(ap, unsigned long), 10, f, bp); break; case 'u': bp = outu(va_arg(ap, unsigned), 10, f, bp); break; case 'o': bp = outu(va_arg(ap, unsigned), 8, f, bp); break; case 'X': bp = outu(va_arg(ap, unsigned long), 16, f, bp); break; case 'x': bp = outu(va_arg(ap, unsigned), 16, f, bp); break; case 'f': case 'e': case 'g': { static char format[] = "%f"; char buf[128]; format[1] = *fmt; sprintf(buf, format, va_arg(ap, double)); bp = outs(buf, f, bp); } ; break; case 's': bp = outs(va_arg(ap, char *), f, bp); break; case 'p': { void *p = va_arg(ap, void *); if (p) bp = outs("0x", f, bp); bp = outu((unsigned long)p, 16, f, bp); break; } case 'c': if (f) fputc(va_arg(ap, int), f); else *bp++ = va_arg(ap, int); break; case 'S': { char *s = va_arg(ap, char *); int n = va_arg(ap, int); if (s) for ( ; n-- > 0; s++) if (f) (void)putc(*s, f); else *bp++ = *s; } break; case 'k': { int t = va_arg(ap, int); static char *tokens[] = { #define xx(a,b,c,d,e,f,g) g, #define yy(a,b,c,d,e,f,g) g, #include "token.h" }; assert(tokens[t&0177]); bp = outs(tokens[t&0177], f, bp); } break; case 't': { Type ty = va_arg(ap, Type); assert(f); outtype(ty ? ty : voidtype, f); } break; case 'w': { Coordinate *p = va_arg(ap, Coordinate *); if (p->file && *p->file) { bp = outs(p->file, f, bp); bp = outs(":", f, bp); } bp = outd(p->y, f, bp); } break; case 'I': { int n = va_arg(ap, int); while (--n >= 0) if (f) (void)putc(' ', f); else *bp++ = ' '; } break; default: if (f) (void)putc(*fmt, f); else *bp++ = *fmt; break; } else if (f) (void)putc(*fmt, f); else *bp++ = *fmt; if (!f) *bp = '\0'; }
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