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authorDave Beckett <dave@dajobe.org>2007-08-28 05:14:35 +0000
committerDave Beckett <dave@dajobe.org>2007-08-28 05:14:35 +0000
commited18aa70cdeb80dc7dff97d89883005c7e577cb1 (patch)
tree67e70b20d81f2171f9d34714fb09357d8bb0c82b /src
parent542b5b4736b5eeb6bfea934725c8bd22d9708178 (diff)
downloadraptor-ed18aa70cdeb80dc7dff97d89883005c7e577cb1.tar.gz
just leave raptor_format_float for now.
Diffstat (limited to 'src')
-rw-r--r--src/snprintf.c620
1 files changed, 7 insertions, 613 deletions
diff --git a/src/snprintf.c b/src/snprintf.c
index bd541cd7..8e2db9c1 100644
--- a/src/snprintf.c
+++ b/src/snprintf.c
@@ -1,51 +1,11 @@
-/**************************************************************
- * Original:
- * Patrick Powell Tue Apr 11 09:48:21 PDT 1995
- * A bombproof version of doprnt (dopr) included.
- * Sigh. This sort of thing is always nasty do deal with. Note that
- * the version here does not include floating point...
- *
- * snprintf() is used instead of sprintf() as it does limit checks
- * for string length. This covers a nasty loophole.
- *
- * The other functions are there to prevent NULL pointers from
- * causing nast effects.
- *
- * More Recently:
- * Brandon Long <blong@fiction.net> 9/15/96 for mutt 0.43
- * This was ugly. It is still ugly. I opted out of floating point
- * numbers, but the formatter understands just about everything
- * from the normal C string format, at least as far as I can tell from
- * the Solaris 2.5 printf(3S) man page.
+/*
+ * This file is in the Public Domain
*
- * Brandon Long <blong@fiction.net> 10/22/97 for mutt 0.87.1
- * Ok, added some minimal floating point support, which means this
- * probably requires libm on most operating systems. Don't yet
- * support the exponent (e,E) and sigfig (g,G). Also, fmtint()
- * was pretty badly broken, it just wasn't being exercised in ways
- * which showed it, so that's been fixed. Also, formated the code
- * to mutt conventions, and removed dead code left over from the
- * original. Also, there is now a builtin-test, just compile with:
- * gcc -DTEST_SNPRINTF -o snprintf snprintf.c -lm
- * and run snprintf for results.
+ * Based on code from Public Domain snprintf.c from mutt
+ * http://dev.mutt.org/hg/mutt/file/55cd4cb611d9/snprintf.c
+ * Tue Aug 08 22:49:12 2006 +0000
*
- * Thomas Roessler <roessler@does-not-exist.org> 01/27/98 for mutt 0.89i
- * The PGP code was using unsigned hexadecimal formats.
- * Unfortunately, unsigned formats simply didn't work.
- *
- * Michael Elkins <me@mutt.org> 03/05/98 for mutt 0.90.8
- * The original code assumed that both snprintf() and vsnprintf() were
- * missing. Some systems only have snprintf() but not vsnprintf(), so
- * the code is now broken down under HAVE_SNPRINTF and HAVE_VSNPRINTF.
- *
- * Holger Weiss <holger@zedat.fu-berlin.de> 07/23/06 for mutt 1.5.13
- * A C99 compliant [v]snprintf() returns the number of characters that
- * would have been written to a sufficiently sized buffer (excluding
- * the '\0'). Mutt now relies on this behaviour, but the original
- * code simply returned the length of the resulting output string, so
- * that's been fixed.
- *
- **************************************************************/
+ */
#ifdef HAVE_CONFIG_H
#include <raptor_config.h>
@@ -54,458 +14,10 @@
#include "raptor.h"
#include "raptor_internal.h"
-#if !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF)
-
-#include <string.h>
-#include <ctype.h>
-#include <sys/types.h>
-#include <stdarg.h>
#include <float.h>
-
#define __USE_ISOC99
#include <math.h>
-#if 0
-int snprintf(char *str, size_t count, const char *fmt, ...);
-int vsnprintf(char *str, size_t count, const char *fmt, va_list arg);
-#endif
-
-/*
-static int dopr(char *buffer, size_t maxlen, const char *format,
- va_list args);
-static void fmtstr(char *buffer, size_t *currlen, size_t maxlen,
- char *value, int flags, int min, int max);
-static void fmtint(char *buffer, size_t *currlen, size_t maxlen,
- long value, int base, int min, int max, int flags);
-const char* raptor_format_float(char *buffer, size_t *currlen, size_t maxlen,
- double fvalue, int min, int max, int flags);
-*/
-#if 0
-static void dopr_outch(char *buffer, size_t *currlen, size_t maxlen, char c );
-#endif
-
-/*
- * dopr(): poor man's version of doprintf
- */
-
-/* format read states */
-#define DP_S_DEFAULT 0
-#define DP_S_FLAGS 1
-#define DP_S_MIN 2
-#define DP_S_DOT 3
-#define DP_S_MAX 4
-#define DP_S_MOD 5
-#define DP_S_CONV 6
-#define DP_S_DONE 7
-
-/* format flags - Bits */
-#define DP_F_MINUS (1 << 0)
-#define DP_F_PLUS (1 << 1)
-#define DP_F_SPACE (1 << 2)
-#define DP_F_NUM (1 << 3)
-#define DP_F_ZERO (1 << 4)
-#define DP_F_UP (1 << 5)
-#define DP_F_UNSIGNED (1 << 6)
-
-/* Conversion Flags */
-#define DP_C_SHORT 1
-#define DP_C_LONG 2
-#define DP_C_LDOUBLE 3
-
-#define char_to_int(p) (p - '0')
-#undef MAX
-#define MAX(p,q) ((p >= q) ? p : q)
-
-#if 0
-static int
-dopr(char *buffer, size_t maxlen, const char *format, va_list args)
-{
- char ch;
- long value;
- long double fvalue;
- char *strvalue;
- int min;
- int max;
- int state;
- int flags;
- int cflags;
- size_t currlen;
-
- state = DP_S_DEFAULT;
- currlen = flags = cflags = min = 0;
- max = -1;
- ch = *format++;
-
- while (state != DP_S_DONE)
- {
- if(ch == '\0')
- state = DP_S_DONE;
-
- switch(state)
- {
- case DP_S_DEFAULT:
- if(ch == '%')
- state = DP_S_FLAGS;
- else
- dopr_outch (buffer, &currlen, maxlen, ch);
- ch = *format++;
- break;
- case DP_S_FLAGS:
- switch (ch)
- {
- case '-':
- flags |= DP_F_MINUS;
- ch = *format++;
- break;
- case '+':
- flags |= DP_F_PLUS;
- ch = *format++;
- break;
- case ' ':
- flags |= DP_F_SPACE;
- ch = *format++;
- break;
- case '#':
- flags |= DP_F_NUM;
- ch = *format++;
- break;
- case '0':
- flags |= DP_F_ZERO;
- ch = *format++;
- break;
- default:
- state = DP_S_MIN;
- break;
- }
- break;
- case DP_S_MIN:
- if(isdigit((unsigned char)ch))
- {
- min = 10*min + char_to_int (ch);
- ch = *format++;
- }
- else if(ch == '*')
- {
- min = va_arg (args, int);
- ch = *format++;
- state = DP_S_DOT;
- }
- else
- state = DP_S_DOT;
- break;
- case DP_S_DOT:
- if(ch == '.')
- {
- state = DP_S_MAX;
- ch = *format++;
- }
- else
- state = DP_S_MOD;
- break;
- case DP_S_MAX:
- if(isdigit((unsigned char)ch))
- {
- if(max < 0)
- max = 0;
- max = 10*max + char_to_int (ch);
- ch = *format++;
- }
- else if(ch == '*')
- {
- max = va_arg (args, int);
- ch = *format++;
- state = DP_S_MOD;
- }
- else
- state = DP_S_MOD;
- break;
- case DP_S_MOD:
- /* Currently, we don't support Long Long, bummer */
- switch (ch)
- {
- case 'h':
- cflags = DP_C_SHORT;
- ch = *format++;
- break;
- case 'l':
- cflags = DP_C_LONG;
- ch = *format++;
- break;
- case 'L':
- cflags = DP_C_LDOUBLE;
- ch = *format++;
- break;
- default:
- break;
- }
- state = DP_S_CONV;
- break;
- case DP_S_CONV:
- switch (ch)
- {
- case 'd':
- case 'i':
- if(cflags == DP_C_SHORT)
- value = va_arg (args, int);
- else if(cflags == DP_C_LONG)
- value = va_arg (args, long int);
- else
- value = va_arg (args, int);
- fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags);
- break;
- case 'o':
- flags |= DP_F_UNSIGNED;
- if(cflags == DP_C_SHORT)
- value = va_arg (args, unsigned int);
- else if(cflags == DP_C_LONG)
- value = va_arg (args, unsigned long int);
- else
- value = va_arg (args, unsigned int);
- fmtint (buffer, &currlen, maxlen, value, 8, min, max, flags);
- break;
- case 'u':
- flags |= DP_F_UNSIGNED;
- if(cflags == DP_C_SHORT)
- value = va_arg (args, unsigned int);
- else if(cflags == DP_C_LONG)
- value = va_arg (args, unsigned long int);
- else
- value = va_arg (args, unsigned int);
- fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags);
- break;
- case 'X':
- flags |= DP_F_UP;
- case 'x':
- flags |= DP_F_UNSIGNED;
- if(cflags == DP_C_SHORT)
- value = va_arg (args, unsigned int);
- else if(cflags == DP_C_LONG)
- value = va_arg (args, unsigned long int);
- else
- value = va_arg (args, unsigned int);
- fmtint (buffer, &currlen, maxlen, value, 16, min, max, flags);
- break;
- case 'f':
- if(cflags == DP_C_LDOUBLE)
- fvalue = va_arg (args, long double);
- else
- fvalue = va_arg (args, double);
- /* um, floating point? */
- fmtfp (buffer, &currlen, maxlen, fvalue, min, max, flags);
- break;
- case 'E':
- flags |= DP_F_UP;
- case 'e':
- if(cflags == DP_C_LDOUBLE)
- fvalue = va_arg (args, long double);
- else
- fvalue = va_arg (args, double);
- break;
- case 'G':
- flags |= DP_F_UP;
- case 'g':
- if(cflags == DP_C_LDOUBLE)
- fvalue = va_arg (args, long double);
- else
- fvalue = va_arg (args, double);
- break;
- case 'c':
- dopr_outch (buffer, &currlen, maxlen, va_arg (args, int));
- break;
- case 's':
- strvalue = va_arg (args, char *);
- fmtstr (buffer, &currlen, maxlen, strvalue, flags, min, max);
- break;
- case 'p':
- strvalue = va_arg (args, void *);
- fmtint (buffer, &currlen, maxlen, (long) strvalue, 16, min, max, flags);
- break;
- case 'n':
- if(cflags == DP_C_SHORT)
- {
- short int *num;
- num = va_arg (args, short int *);
- *num = currlen;
- }
- else if(cflags == DP_C_LONG)
- {
- long int *num;
- num = va_arg (args, long int *);
- *num = currlen;
- }
- else
- {
- int *num;
- num = va_arg (args, int *);
- *num = currlen;
- }
- break;
- case '%':
- dopr_outch (buffer, &currlen, maxlen, ch);
- break;
- case 'w':
- /* not supported yet, treat as next char */
- ch = *format++;
- break;
- default:
- /* Unknown, skip */
- break;
- }
- ch = *format++;
- state = DP_S_DEFAULT;
- flags = cflags = min = 0;
- max = -1;
- break;
- case DP_S_DONE:
- break;
- default:
- /* hmm? */
- break; /* some picky compilers need this */
- }
- }
- if(currlen < maxlen - 1)
- buffer[currlen] = '\0';
- else
- buffer[maxlen - 1] = '\0';
-
- return (int)currlen;
-}
-
-
-static void
-fmtstr(char *buffer, size_t *currlen, size_t maxlen,
- char *value, int flags, int min, int max)
-{
- int padlen, strln; /* amount to pad */
- int cnt = 0;
-
- if(value == 0)
- {
- value = (char*)"<NULL>";
- }
-
- for(strln = 0; value[strln]; ++strln); /* strlen */
- padlen = min - strln;
- if(padlen < 0)
- padlen = 0;
- if(flags & DP_F_MINUS)
- padlen = -padlen; /* Left Justify */
-
- while ((padlen > 0) && (max == -1 || cnt < max))
- {
- dopr_outch (buffer, currlen, maxlen, ' ');
- --padlen;
- ++cnt;
- }
- while (*value && (max == -1 || cnt < max))
- {
- dopr_outch (buffer, currlen, maxlen, *value++);
- ++cnt;
- }
- while ((padlen < 0) && (max == -1 || cnt < max))
- {
- dopr_outch (buffer, currlen, maxlen, ' ');
- ++padlen;
- ++cnt;
- }
-}
-
-
-/* Have to handle DP_F_NUM (ie 0x and 0 alternates) */
-
-static void
-fmtint(char *buffer, size_t *currlen, size_t maxlen,
- long value, int base, int min, int max, int flags)
-{
- int signvalue = 0;
- unsigned long uvalue;
- char convert[20];
- int place = 0;
- int spadlen = 0; /* amount to space pad */
- int zpadlen = 0; /* amount to zero pad */
- int caps = 0;
-
- if(max < 0)
- max = 0;
-
- uvalue = value;
-
- if(!(flags & DP_F_UNSIGNED))
- {
- if( value < 0 ) {
- signvalue = '-';
- uvalue = -value;
- }
- else
- if(flags & DP_F_PLUS) /* Do a sign (+/i) */
- signvalue = '+';
- else
- if(flags & DP_F_SPACE)
- signvalue = ' ';
- }
-
- if(flags & DP_F_UP) caps = 1; /* Should characters be upper case? */
-
- do {
- convert[place++] =
- (caps? "0123456789ABCDEF":"0123456789abcdef")
- [uvalue % (unsigned)base ];
- uvalue = (uvalue / (unsigned)base );
- } while(uvalue && (place < 20));
- if(place == 20) place--;
- convert[place] = 0;
-
- zpadlen = max - place;
- spadlen = min - MAX (max, place) - (signvalue ? 1 : 0);
- if(zpadlen < 0) zpadlen = 0;
- if(spadlen < 0) spadlen = 0;
- if(flags & DP_F_ZERO)
- {
- zpadlen = MAX(zpadlen, spadlen);
- spadlen = 0;
- }
- if(flags & DP_F_MINUS)
- spadlen = -spadlen; /* Left Justifty */
-
-#ifdef DEBUG_SNPRINTF
- dprint (1, (debugfile, "zpad: %d, spad: %d, min: %d, max: %d, place: %d\n",
- zpadlen, spadlen, min, max, place));
-#endif
-
- /* Spaces */
- while (spadlen > 0)
- {
- dopr_outch (buffer, currlen, maxlen, ' ');
- --spadlen;
- }
-
- /* Sign */
- if(signvalue)
- dopr_outch (buffer, currlen, maxlen, signvalue);
-
- /* Zeros */
- if(zpadlen > 0)
- {
- while (zpadlen > 0)
- {
- dopr_outch (buffer, currlen, maxlen, '0');
- --zpadlen;
- }
- }
-
- /* Digits */
- while (place > 0)
- dopr_outch (buffer, currlen, maxlen, convert[--place]);
-
- /* Left Justified spaces */
- while (spadlen < 0) {
- dopr_outch (buffer, currlen, maxlen, ' ');
- ++spadlen;
- }
-}
-#endif
-
-
/* Convert a double to xsd:decimal representation.
* Returned is a pointer to the first character of the number
* in buffer (don't free it).
@@ -589,127 +101,9 @@ raptor_format_float(char *buffer, size_t *currlen, size_t maxlen,
/* Write a sign, if requested */
if(fvalue < 0)
buffer[idx--] = '-';
- else if(flags & DP_F_PLUS)
+ else if(flags)
buffer[idx--] = '+';
*currlen = maxlen - idx - 2;
return buffer + idx + 1;
}
-
-
-#if 0
-static void
-dopr_outch(char *buffer, size_t *currlen, size_t maxlen, char c)
-{
- if(*currlen < maxlen)
- buffer[*currlen] = c;
- (*currlen)++;
-}
-#endif
-
-#endif /* !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF) */
-
-
-#if 0
-#ifndef HAVE_VSNPRINTF
-int
-vsnprintf(char *str, size_t count, const char *fmt, va_list args)
-{
- str[0] = 0;
- return(dopr(str, count, fmt, args));
-}
-#endif /* !HAVE_VSNPRINTF */
-
-
-#ifndef HAVE_SNPRINTF
-/* VARARGS3 */
-int
-snprintf(char *str, size_t count, const char *fmt, ...)
-{
- int len;
- va_list ap;
-
- va_start(ap, fmt);
- len = vsnprintf(str, count, fmt, ap);
- va_end(ap);
- return(len);
-}
-#endif
-
-
-#ifdef TEST_SNPRINTF
-#ifndef LONG_STRING
-#define LONG_STRING 1024
-#endif
-int
-main(void)
-{
- char buf1[LONG_STRING];
- char buf2[LONG_STRING];
- char *fp_fmt[] = {
- "%-1.5f",
- "%1.5f",
- "%123.9f",
- "%10.5f",
- "% 10.5f",
- "%+22.9f",
- "%+4.9f",
- "%01.3f",
- "%4f",
- "%3.1f",
- "%3.2f",
- NULL
- };
- double fp_nums[] = { -1.5, 134.21, 91340.2, 341.1234, 0203.9, 0.96, 0.996,
- 0.9996, 1.996, 4.136, 0};
- char *int_fmt[] = {
- "%-1.5d",
- "%1.5d",
- "%123.9d",
- "%5.5d",
- "%10.5d",
- "% 10.5d",
- "%+22.33d",
- "%01.3d",
- "%4d",
- NULL
- };
- long int_nums[] = { -1, 134, 91340, 341, 0203, 0};
- int x, y;
- int fail = 0;
- int num = 0;
-
- printf ("Testing snprintf format codes against system sprintf...\n");
-
- for(x = 0; fp_fmt[x] != NULL ; x++)
- for(y = 0; fp_nums[y] != 0 ; y++)
- {
- snprintf (buf1, sizeof (buf1), fp_fmt[x], fp_nums[y]);
- sprintf (buf2, fp_fmt[x], fp_nums[y]);
- if(strcmp (buf1, buf2))
- {
- printf("snprintf doesn't match Format: %s\n\tsnprintf = %s\n\tsprintf = %s\n", /* __SPRINTF_CHECKED__ */
- fp_fmt[x], buf1, buf2);
- fail++;
- }
- num++;
- }
-
- for(x = 0; int_fmt[x] != NULL ; x++)
- for(y = 0; int_nums[y] != 0 ; y++)
- {
- snprintf (buf1, sizeof (buf1), int_fmt[x], int_nums[y]);
- sprintf (buf2, int_fmt[x], int_nums[y]);
- if(strcmp (buf1, buf2))
- {
- printf("snprintf doesn't match Format: %s\n\tsnprintf = %s\n\tsprintf = %s\n", /* __SPRINTF_CHECKED__ */
- int_fmt[x], buf1, buf2);
- fail++;
- }
- num++;
- }
- printf ("%d tests failed out of %d.\n", fail, num);
-}
-#endif /* SNPRINTF_TEST */
-
-#endif /* !HAVE_SNPRINTF */