diff options
Diffstat (limited to 'lib/mprintf.c')
| -rw-r--r-- | lib/mprintf.c | 292 |
1 files changed, 274 insertions, 18 deletions
diff --git a/lib/mprintf.c b/lib/mprintf.c index dd9a42f81..1a908b3f2 100644 --- a/lib/mprintf.c +++ b/lib/mprintf.c @@ -1,25 +1,281 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| +/**************************************************************************** * - * Copyright (C) 1998 - 2003, Daniel Stenberg, <daniel@haxx.se>, et al. + * $Id$ * - * 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. + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. * - * $Id$ - ***************************************************************************/ + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF + * MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE AUTHORS AND + * CONTRIBUTORS ACCEPT NO RESPONSIBILITY IN ANY CONCEIVABLE MANNER. + * + * Purpose: + * A merge of Bjorn Reese's format() function and Daniel's dsprintf() + * 1.0. A full blooded printf() clone with full support for <num>$ + * everywhere (parameters, widths and precisions) including variabled + * sized parameters (like doubles, long longs, long doubles and even + * void * in 64-bit architectures). + * + * Current restrictions: + * - Max 128 parameters + * - No 'long double' support. + * + * If you ever want truly portable and good *printf() clones, the project that + * took on from here is named 'Trio' and you find more details on the trio web + * page at http://daniel.haxx.se/trio/ + */ + + +#include "setup.h" +#include <sys/types.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <ctype.h> +#include <string.h> + +#ifndef SIZEOF_LONG_LONG +/* prevents warnings on picky compilers */ +#define SIZEOF_LONG_LONG 0 +#endif +#ifndef SIZEOF_LONG_DOUBLE +#define SIZEOF_LONG_DOUBLE 0 +#endif + + +/* The last #include file should be: */ +#ifdef MALLOCDEBUG +#include "memdebug.h" +#endif + +#define BUFFSIZE 256 /* buffer for long-to-str and float-to-str calcs */ +#define MAX_PARAMETERS 128 /* lame static limit */ + +#undef TRUE +#undef FALSE +#undef BOOL +#ifdef __cplusplus +# define TRUE true +# define FALSE false +# define BOOL bool +#else +# define TRUE ((char)(1 == 1)) +# define FALSE ((char)(0 == 1)) +# define BOOL char +#endif + + +/* Lower-case digits. */ +static const char lower_digits[] = "0123456789abcdefghijklmnopqrstuvwxyz"; + +/* Upper-case digits. */ +static const char upper_digits[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; + +#define OUTCHAR(x) done+=(stream(x, (FILE *)data)==-1?0:1) + +/* Data type to read from the arglist */ +typedef enum { + FORMAT_UNKNOWN = 0, + FORMAT_STRING, + FORMAT_PTR, + FORMAT_INT, + FORMAT_INTPTR, + FORMAT_LONG, + FORMAT_LONGLONG, + FORMAT_DOUBLE, + FORMAT_LONGDOUBLE, + FORMAT_WIDTH /* For internal use */ +} FormatType; + +/* convertion and display flags */ +enum { + FLAGS_NEW = 0, + FLAGS_SPACE = 1<<0, + FLAGS_SHOWSIGN = 1<<1, + FLAGS_LEFT = 1<<2, + FLAGS_ALT = 1<<3, + FLAGS_SHORT = 1<<4, + FLAGS_LONG = 1<<5, + FLAGS_LONGLONG = 1<<6, + FLAGS_LONGDOUBLE = 1<<7, + FLAGS_PAD_NIL = 1<<8, + FLAGS_UNSIGNED = 1<<9, + FLAGS_OCTAL = 1<<10, + FLAGS_HEX = 1<<11, + FLAGS_UPPER = 1<<12, + FLAGS_WIDTH = 1<<13, /* '*' or '*<num>$' used */ + FLAGS_WIDTHPARAM = 1<<14, /* width PARAMETER was specified */ + FLAGS_PREC = 1<<15, /* precision was specified */ + FLAGS_PRECPARAM = 1<<16, /* precision PARAMETER was specified */ + FLAGS_CHAR = 1<<17, /* %c story */ + FLAGS_FLOATE = 1<<18, /* %e or %E */ + FLAGS_FLOATG = 1<<19 /* %g or %G */ +}; + +typedef struct { + FormatType type; + int flags; + int width; /* width OR width parameter number */ + int precision; /* precision OR precision parameter number */ + union { + char *str; + void *ptr; + long num; +#if SIZEOF_LONG_LONG /* if this is non-zero */ + long long lnum; +#endif + double dnum; +#if SIZEOF_LONG_DOUBLE + long double ldnum; +#endif + } data; +} va_stack_t; + +struct nsprintf { + char *buffer; + size_t length; + size_t max; +}; + +struct asprintf { + char *buffer; /* allocated buffer */ + size_t len; /* length of string */ + size_t alloc; /* length of alloc */ +}; + +int curl_msprintf(char *buffer, const char *format, ...); + +static int dprintf_DollarString(char *input, char **end) +{ + int number=0; + while(isdigit((int)*input)) { + number *= 10; + number += *input-'0'; + input++; + } + if(number && ('$'==*input++)) { + *end = input; + return number; + } + return 0; +} + +static BOOL dprintf_IsQualifierNoDollar(char c) +{ + switch (c) { + case '-': case '+': case ' ': case '#': case '.': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + case 'h': case 'l': case 'L': case 'Z': case 'q': + return TRUE; + default: + return FALSE; + } +} + +#ifdef DPRINTF_DEBUG2 +int dprintf_Pass1Report(va_stack_t *vto, int max) +{ + int i; + char buffer[128]; + int bit; + int flags; + + for(i=0; i<max; i++) { + char *type; + switch(vto[i].type) { + case FORMAT_UNKNOWN: + type = "unknown"; + break; + case FORMAT_STRING: + type ="string"; + break; + case FORMAT_PTR: + type ="pointer"; + break; + case FORMAT_INT: + type = "int"; + break; + case FORMAT_LONG: + type = "long"; + break; + case FORMAT_LONGLONG: + type = "long long"; + break; + case FORMAT_DOUBLE: + type = "double"; + break; + case FORMAT_LONGDOUBLE: + type = "long double"; + break; + } + + + buffer[0]=0; + + for(bit=0; bit<31; bit++) { + flags = vto[i].flags & (1<<bit); + + if(flags & FLAGS_SPACE) + strcat(buffer, "space "); + else if(flags & FLAGS_SHOWSIGN) + strcat(buffer, "plus "); + else if(flags & FLAGS_LEFT) + strcat(buffer, "left "); + else if(flags & FLAGS_ALT) + strcat(buffer, "alt "); + else if(flags & FLAGS_SHORT) + strcat(buffer, "short "); + else if(flags & FLAGS_LONG) + strcat(buffer, "long "); + else if(flags & FLAGS_LONGLONG) + strcat(buffer, "longlong "); + else if(flags & FLAGS_LONGDOUBLE) + strcat(buffer, "longdouble "); + else if(flags & FLAGS_PAD_NIL) + strcat(buffer, "padnil "); + else if(flags & FLAGS_UNSIGNED) + strcat(buffer, "unsigned "); + else if(flags & FLAGS_OCTAL) + strcat(buffer, "octal "); + else if(flags & FLAGS_HEX) + strcat(buffer, "hex "); + else if(flags & FLAGS_UPPER) + strcat(buffer, "upper "); + else if(flags & FLAGS_WIDTH) + strcat(buffer, "width "); + else if(flags & FLAGS_WIDTHPARAM) + strcat(buffer, "widthparam "); + else if(flags & FLAGS_PREC) + strcat(buffer, "precision "); + else if(flags & FLAGS_PRECPARAM) + strcat(buffer, "precparam "); + else if(flags & FLAGS_CHAR) + strcat(buffer, "char "); + else if(flags & FLAGS_FLOATE) + strcat(buffer, "floate "); + else if(flags & FLAGS_FLOATG) + strcat(buffer, "floatg "); + } + printf("REPORT: %d. %s [%s]\n", i, type, buffer); + + } + + +} +#endif + +/****************************************************************** + * + * Pass 1: + * Create an index with the type of each parameter entry and its + * value (may vary in size) + * + ******************************************************************/ static int dprintf_Pass1(char *format, va_stack_t *vto, char **endpos, va_list arglist) { |