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bug: format size limits with little problems

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This commit is contained in:
Roberto Ierusalimschy 1998-01-27 17:11:36 -02:00
parent d22e2644dd
commit 8622dc18bf
2 changed files with 10 additions and 4 deletions
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6
bugs
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@ -18,3 +18,9 @@ Thu Jan 15 14:34:58 EDT 1998
** llex.c
Mon Jan 19 18:17:18 EDT 1998
>> wrong line number (+1) in error report when file starts with "#..."
** lstrlib.c
Tue Jan 27 15:27:49 EDT 1998
>> formats like "%020d" were considered too big (3 algarithms); moreover,
>> some sistems limit printf to at most 500 chars, so we can limit sizes
>> to 2 digits (99).

8
lstrlib.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lstrlib.c,v 1.6 1998/01/09 14:44:55 roberto Exp $
** $Id: lstrlib.c,v 1.7 1998/01/09 14:57:43 roberto Exp roberto $
** Standard library for strings and pattern-matching
** See Copyright Notice in lua.h
*/
@ -449,14 +449,14 @@ static void str_format (void)
char *initf = strfrmt;
form[0] = '%';
cap.level = 0;
strfrmt = match(strfrmt, "%d?%$?[-+ #]*(%d*)%.?(%d*)", &cap);
if (cap.capture[0].len > 3 || cap.capture[1].len > 3) /* < 1000? */
lua_error("invalid format (width or precision too long)");
if (isdigit((unsigned char)initf[0]) && initf[1] == '$') {
arg = initf[0] - '0';
initf += 2; /* skip the 'n$' */
}
arg++;
strfrmt = match(initf, "[-+ #0]*(%d*)%.?(%d*)", &cap);
if (cap.capture[0].len > 2 || cap.capture[1].len > 2) /* < 100? */
lua_error("invalid format (width or precision too long)");
strncpy(form+1, initf, strfrmt-initf+1); /* +1 to include convertion */
form[strfrmt-initf+2] = 0;
buff = luaL_openspace(1000); /* to store the formatted value */