/*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) 1998 - 2003, Daniel Stenberg, , et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms * are also available at http://curl.haxx.se/docs/copyright.html. * * You may opt to use, copy, modify, merge, publish, distribute and/or sell * copies of the Software, and permit persons to whom the Software is * furnished to do so, under the terms of the COPYING file. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * * $Id$ ***************************************************************************/ static int dprintf_Pass1(char *format, va_stack_t *vto, char **endpos, va_list arglist) { char *fmt = format; int param_num = 0; int this_param; int width; int precision; int flags; int max_param=0; int i; while (*fmt) { if (*fmt++ == '%') { if (*fmt == '%') { fmt++; continue; /* while */ } flags = FLAGS_NEW; /* Handle the positional case (N$) */ param_num++; this_param = dprintf_DollarString(fmt, &fmt); if (0 == this_param) /* we got no positional, get the next counter */ this_param = param_num; if (this_param > max_param) max_param = this_param; /* * The parameter with number 'i' should be used. Next, we need * to get SIZE and TYPE of the parameter. Add the information * to our array. */ width = 0; precision = 0; /* Handle the flags */ while (dprintf_IsQualifierNoDollar(*fmt)) { switch (*fmt++) { case ' ': flags |= FLAGS_SPACE; break; case '+': flags |= FLAGS_SHOWSIGN; break; case '-': flags |= FLAGS_LEFT; flags &= ~FLAGS_PAD_NIL; break; case '#': flags |= FLAGS_ALT; break; case '.': flags |= FLAGS_PREC; if ('*' == *fmt) { /* The precision is picked from a specified parameter */ flags |= FLAGS_PRECPARAM; fmt++; param_num++; i = dprintf_DollarString(fmt, &fmt); if (i) precision = i; else precision = param_num; if (precision > max_param) max_param = precision; } else { flags |= FLAGS_PREC; precision = strtol(fmt, &fmt, 10); } break; case 'h': flags |= FLAGS_SHORT; break; case 'l': if (flags & FLAGS_LONG) flags |= FLAGS_LONGLONG; else flags |= FLAGS_LONG; break; case 'L': flags |= FLAGS_LONGDOUBLE; break; case 'q': flags |= FLAGS_LONGLONG; break; case 'Z': if (sizeof(size_t) > sizeof(unsigned long int)) flags |= FLAGS_LONGLONG; if (sizeof(size_t) > sizeof(unsigned int)) flags |= FLAGS_LONG; break; case '0': if (!(flags & FLAGS_LEFT)) flags |= FLAGS_PAD_NIL; /* FALLTHROUGH */ case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': flags |= FLAGS_WIDTH; width = strtol(fmt-1, &fmt, 10); break; case '*': /* Special case */ flags |= FLAGS_WIDTHPARAM; param_num++; i = dprintf_DollarString(fmt, &fmt); if(i) width = i; else width = param_num; if(width > max_param) max_param=width; break; default: break; } } /* switch */ /* Handle the specifier */ i = this_param - 1; switch (*fmt) { case 'S': flags |= FLAGS_ALT; /* FALLTHROUGH */ case 's': vto[i].type = FORMAT_STRING; break; case 'n': vto[i].type = FORMAT_INTPTR; break; case 'p': vto[i].type = FORMAT_PTR; break; case 'd': case 'i': vto[i].type = FORMAT_INT; break; case 'u': vto[i].type = FORMAT_INT; flags |= FLAGS_UNSIGNED; break; case 'o': vto[i].type = FORMAT_INT; flags |= FLAGS_OCTAL; break; case 'x': vto[i].type = FORMAT_INT; flags |= FLAGS_HEX; break; case 'X': vto[i].type = FORMAT_INT; flags |= FLAGS_HEX|FLAGS_UPPER; break; case 'c': vto[i].type = FORMAT_INT; flags |= FLAGS_CHAR; break; case 'f': vto[i].type = FORMAT_DOUBLE; break; case 'e': case 'E': vto[i].type = FORMAT_DOUBLE; flags |= FLAGS_FLOATE| (('E' == *fmt)?FLAGS_UPPER:0); break; case 'g': case 'G': vto[i].type = FORMAT_DOUBLE; flags |= FLAGS_FLOATG| (('G' == *fmt)?FLAGS_UPPER:0); break; default: vto[i].type = FORMAT_UNKNOWN; break; } /* switch */ vto[i].flags = flags; vto[i].width = width; vto[i].precision = precision; if (flags & FLAGS_WIDTHPARAM) { /* we have the width specified from a parameter, so we make that parameter's info setup properly */ vto[i].width = width - 1; i = width - 1; vto[i].type = FORMAT_WIDTH; vto[i].flags = FLAGS_NEW; vto[i].precision = vto[i].width = 0; /* can't use width or precision of width! */ } if (flags & FLAGS_PRECPARAM) { /* we have the precision specified from a parameter, so we make that parameter's info setup properly */ vto[i].precision = precision - 1; i = precision - 1; vto[i].type = FORMAT_WIDTH; vto[i].flags = FLAGS_NEW; vto[i].precision = vto[i].width = 0; /* can't use width or precision of width! */ } *endpos++ = fmt + 1; /* end of this sequence */ } } #ifdef DPRINTF_DEBUG2 dprintf_Pass1Report(vto, max_param); #endif /* Read the arg list parameters into our data list */ for (i=0; i$ sequence */ param=dprintf_DollarString(f, &f); if(!param) param = param_num; else --param; param_num++; /* increase this always to allow "%2$s %1$s %s" and then the third %s will pick the 3rd argument */ p = &vto[param]; /* pick up the specified width */ if(p->flags & FLAGS_WIDTHPARAM) width = vto[p->width].data.num; else width = p->width; /* pick up the specified precision */ if(p->flags & FLAGS_PRECPARAM) prec = vto[p->precision].data.num; else if(p->flags & FLAGS_PREC) prec = p->precision; else prec = -1; alt = p->flags & FLAGS_ALT; switch (p->type) { case FORMAT_INT: num = p->data.num; if(p->flags & FLAGS_CHAR) { /* Character. */ if (!(p->flags & FLAGS_LEFT)) while (--width > 0) OUTCHAR(' '); OUTCHAR((char) num); if (p->flags & FLAGS_LEFT) while (--width > 0) OUTCHAR(' '); break; } if(p->flags & FLAGS_UNSIGNED) { /* Decimal unsigned integer. */ base = 10; goto unsigned_number; } if(p->flags & FLAGS_OCTAL) { /* Octal unsigned integer. */ base = 8; goto unsigned_number; } if(p->flags & FLAGS_HEX) { /* Hexadecimal unsigned integer. */ digits = (p->flags & FLAGS_UPPER)? upper_digits : lower_digits; base = 16; goto unsigned_number; } /* Decimal integer. */ base = 10; #if SIZEOF_LONG_LONG if(p->flags & FLAGS_LONGLONG) { /* long long */ is_neg = p->data.lnum < 0; num = is_neg ? (- p->data.lnum) : p->data.lnum; } else #endif { signed_num = (long) num; is_neg = signed_num < 0; num = is_neg ? (- signed_num) : signed_num; } goto number; unsigned_number:; /* Unsigned number of base BASE. */ is_neg = 0; number:; /* Number of base BASE. */ { char *workend = &work[sizeof(work) - 1]; register char *w; /* Supply a default precision if none was given. */ if (prec == -1) prec = 1; /* Put the number in WORK. */ w = workend; while (num > 0) { *w-- = digits[num % base]; num /= base; } width -= workend - w; prec -= workend - w; if (alt && base == 8 && prec <= 0) { *w-- = '0'; --width; } if (prec > 0) { width -= prec; while (prec-- > 0) *w-- = '0'; } if (alt && base == 16) width -= 2; if (is_neg || (p->flags & FLAGS_SHOWSIGN) || (p->flags & FLAGS_SPACE)) --width; if (!(p->flags & FLAGS_LEFT) && !(p->flags & FLAGS_PAD_NIL)) while (width-- > 0) OUTCHAR(' '); if (is_neg) OUTCHAR('-'); else if (p->flags & FLAGS_SHOWSIGN) OUTCHAR('+'); else if (p->flags & FLAGS_SPACE) OUTCHAR(' '); if (alt && base == 16) { OUTCHAR('0'); if(p->flags & FLAGS_UPPER) OUTCHAR('X'); else OUTCHAR('x'); } if (!(p->flags & FLAGS_LEFT) && (p->flags & FLAGS_PAD_NIL)) while (width-- > 0) OUTCHAR('0'); /* Write the number. */ while (++w <= workend) { OUTCHAR(*w); } if (p->flags & FLAGS_LEFT) while (width-- > 0) OUTCHAR(' '); } break; case FORMAT_STRING: /* String. */ { static char null[] = "(nil)"; char *str; size_t len; str = (char *) p->data.str; if ( str == NULL) { /* Write null[] if there's space. */ if (prec == -1 || prec >= (long) sizeof(null) - 1) { str = null; len = sizeof(null) - 1; /* Disable quotes around (nil) */ p->flags &= (~FLAGS_ALT); } else { str = (char *)""; len = 0; } } else len = strlen(str); if (prec != -1 && (size_t) prec < len) len = prec; width -= len; if (p->flags & FLAGS_ALT) OUTCHAR('"'); if (!(p->flags&FLAGS_LEFT)) while (width-- > 0) OUTCHAR(' '); while (len-- > 0) OUTCHAR(*str++); if (p->flags&FLAGS_LEFT) while (width-- > 0) OUTCHAR(' '); if (p->flags & FLAGS_ALT) OUTCHAR('"'); } break; case FORMAT_PTR: /* Generic pointer. */ { void *ptr; ptr = (void *) p->data.ptr; if (ptr != NULL) { /* If the pointer is not NULL, write it as a %#x spec. */ base = 16; digits = (p->flags & FLAGS_UPPER)? upper_digits : lower_digits; alt = 1; num = (unsigned long) ptr; is_neg = 0; goto number; } else { /* Write "(nil)" for a nil pointer. */ static char strnil[] = "(nil)"; register char *point; width -= sizeof(strnil) - 1; if (p->flags & FLAGS_LEFT) while (width-- > 0) OUTCHAR(' '); for (point = strnil; *point != '\0'; ++point) OUTCHAR(*point); if (! (p->flags & FLAGS_LEFT)) while (width-- > 0) OUTCHAR(' '); } } break; case FORMAT_DOUBLE: { char formatbuf[32]="%"; char *fptr; width = -1; if (p->flags & FLAGS_WIDTH) width = p->width; else if (p->flags & FLAGS_WIDTHPARAM) width = vto[p->width].data.num; prec = -1; if (p->flags & FLAGS_PREC) prec = p->precision; else if (p->flags & FLAGS_PRECPARAM) prec = vto[p->precision].data.num; if (p->flags & FLAGS_LEFT) strcat(formatbuf, "-"); if (p->flags & FLAGS_SHOWSIGN) strcat(formatbuf, "+"); if (p->flags & FLAGS_SPACE) strcat(formatbuf, " "); if (p->flags & FLAGS_ALT) strcat(formatbuf, "#"); fptr=&formatbuf[strlen(formatbuf)]; if(width >= 0) { /* RECURSIVE USAGE */ fptr += curl_msprintf(fptr, "%d", width); } if(prec >= 0) { /* RECURSIVE USAGE */ fptr += curl_msprintf(fptr, ".%d", prec); } if (p->flags & FLAGS_LONG) strcat(fptr, "l"); if (p->flags & FLAGS_FLOATE) strcat(fptr, p->flags&FLAGS_UPPER?"E":"e"); else if (p->flags & FLAGS_FLOATG) strcat(fptr, (p->flags & FLAGS_UPPER) ? "G" : "g"); else strcat(fptr, "f"); /* NOTE NOTE NOTE!! Not all sprintf() implementations returns number of output characters */ #if SIZEOF_LONG_DOUBLE if (p->flags & FLAGS_LONG) /* This is for support of the 'long double' type */ (sprintf)(work, formatbuf, p->data.ldnum); else #endif (sprintf)(work, formatbuf, p->data.dnum); for(fptr=work; *fptr; fptr++) OUTCHAR(*fptr); } break; case FORMAT_INTPTR: /* Answer the count of characters written. */ #if SIZEOF_LONG_LONG if (p->flags & FLAGS_LONGLONG) *(long long int *) p->data.ptr = done; else #endif if (p->flags & FLAGS_LONG) *(long int *) p->data.ptr = done; else if (!(p->flags & FLAGS_SHORT)) *(int *) p->data.ptr = done; else *(short int *) p->data.ptr = done; break; default: break; } f = *end++; /* goto end of %-code */ } return done; } /* fputc() look-alike */ static int addbyter(int output, FILE *data) { struct nsprintf *infop=(struct nsprintf *)data; if(infop->length < infop->max) { /* only do this if we haven't reached max length yet */ infop->buffer[0] = (char)output; /* store */ infop->buffer++; /* increase pointer */ infop->length++; /* we are now one byte larger */ return output; /* fputc() returns like this on success */ } return -1; } int curl_msnprintf(char *buffer, size_t maxlength, const char *format, ...) { va_list ap_save; /* argument pointer */ int retcode; struct nsprintf info; info.buffer = buffer; info.length = 0; info.max = maxlength; va_start(ap_save, format); retcode = dprintf_formatf(&info, addbyter, format, ap_save); va_end(ap_save); info.buffer[0] = 0; /* we terminate this with a zero byte */ /* we could even return things like */ return retcode; } int curl_mvsnprintf(char *buffer, size_t maxlength, const char *format, va_list ap_save) { int retcode; struct nsprintf info; info.buffer = buffer; info.length = 0; info.max = maxlength; retcode = dprintf_formatf(&info, addbyter, format, ap_save); info.buffer[0] = 0; /* we terminate this with a zero byte */ return retcode; } /* fputc() look-alike */ static int alloc_addbyter(int output, FILE *data) { struct asprintf *infop=(struct asprintf *)data; if(!infop->buffer) { infop->buffer=(char *)malloc(32); if(!infop->buffer) return -1; /* fail */ infop->alloc = 32; infop->len =0; } else if(infop->len+1 >= infop->alloc) { char *newptr; newptr = (char *)realloc(infop->buffer, infop->alloc*2); if(!newptr) { return -1; } infop->buffer = newptr; infop->alloc *= 2; } infop->buffer[ infop->len ] = output; infop->len++; return output; /* fputc() returns like this on success */ } char *curl_maprintf(const char *format, ...) { va_list ap_save; /* argument pointer */ int retcode; struct asprintf info; info.buffer = NULL; info.len = 0; info.alloc = 0; va_start(ap_save, format); retcode = dprintf_formatf(&info, alloc_addbyter, format, ap_save); va_end(ap_save); if(-1 == retcode) { if(info.alloc) free(info.buffer); return NULL; } if(info.alloc) { info.buffer[info.len] = 0; /* we terminate this with a zero byte */ return info.buffer; } else return strdup(""); } char *curl_mvaprintf(const char *format, va_list ap_save) { int retcode; struct asprintf info; info.buffer = NULL; info.len = 0; info.alloc = 0; retcode = dprintf_formatf(&info, alloc_addbyter, format, ap_save); if(-1 == retcode) { if(info.alloc) free(info.buffer); return NULL; } if(info.alloc) { info.buffer[info.len] = 0; /* we terminate this with a zero byte */ return info.buffer; } else return strdup(""); } static int storebuffer(int output, FILE *data) { char **buffer = (char **)data; **buffer = (char)output; (*buffer)++; return output; /* act like fputc() ! */ } int curl_msprintf(char *buffer, const char *format, ...) { va_list ap_save; /* argument pointer */ int retcode; va_start(ap_save, format); retcode = dprintf_formatf(&buffer, storebuffer, format, ap_save); va_end(ap_save); *buffer=0; /* we terminate this with a zero byte */ return retcode; } #ifndef WIN32 /* not needed on win32 */ extern int fputc(int, FILE *); #endif int curl_mprintf(const char *format, ...) { int retcode; va_list ap_save; /* argument pointer */ va_start(ap_save, format); retcode = dprintf_formatf(stdout, fputc, format, ap_save); va_end(ap_save); return retcode; } int curl_mfprintf(FILE *whereto, const char *format, ...) { int retcode; va_list ap_save; /* argument pointer */ va_start(ap_save, format); retcode = dprintf_formatf(whereto, fputc, format, ap_save); va_end(ap_save); return retcode; } int curl_mvsprintf(char *buffer, const char *format, va_list ap_save) { int retcode; retcode = dprintf_formatf(&buffer, storebuffer, format, ap_save); *buffer=0; /* we terminate this with a zero byte */ return retcode; } int curl_mvprintf(const char *format, va_list ap_save) { return dprintf_formatf(stdout, fputc, format, ap_save); } int curl_mvfprintf(FILE *whereto, const char *format, va_list ap_save) { return dprintf_formatf(whereto, fputc, format, ap_save); } #ifdef DPRINTF_DEBUG int main() { char buffer[129]; char *ptr; #if SIZEOF_LONG_LONG>0 long long hullo; dprintf("%3$12s %1$s %2$qd %4$d\n", "daniel", hullo, "stenberg", 65); #endif mprintf("%3d %5d\n", 10, 1998); ptr=maprintf("test this then baby %s%s%s%s%s%s %d %d %d loser baby get a hit in yer face now!", "", "pretty long string pretty long string pretty long string pretty long string pretty long string", "/", "/", "/", "pretty long string", 1998, 1999, 2001); puts(ptr); memset(ptr, 55, strlen(ptr)+1); free(ptr); #if 1 mprintf(buffer, "%s %s %d", "daniel", "stenberg", 19988); puts(buffer); mfprintf(stderr, "%s %#08x\n", "dummy", 65); printf("%s %#08x\n", "dummy", 65); { double tryout = 3.14156592; mprintf(buffer, "%.2g %G %f %e %E", tryout, tryout, tryout, tryout, tryout); puts(buffer); printf("%.2g %G %f %e %E\n", tryout, tryout, tryout, tryout, tryout); } #endif return 0; } #endif /* * local variables: * eval: (load-file "../curl-mode.el") * end: * vim600: fdm=marker * vim: et sw=2 ts=2 sts=2 tw=78 */