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kernel32: Replace the format_message() helper macro with a static function.

This commit is contained in:
Francois Gouget 2012-09-19 20:37:24 +02:00 committed by Alexandre Julliard
parent a273cac747
commit bca6e18d1b
1 changed files with 39 additions and 34 deletions
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73
dlls/kernel32/format_msg.c
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@ -261,30 +261,36 @@ static LPCWSTR format_insert( BOOL unicode_caller, int insert, LPCWSTR format,
return format;
}
struct _format_message_data
{
LPWSTR formatted;
DWORD size;
LPWSTR t;
};
static void format_add_char(struct _format_message_data *fmd, WCHAR c)
{
*fmd->t++ = c;
if ((DWORD)(fmd->t - fmd->formatted) == fmd->size) {
fmd->formatted = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, fmd->formatted, (fmd->size * 2) * sizeof(WCHAR));
fmd->t = fmd->formatted + fmd->size;
fmd->size *= 2;
}
}
/**********************************************************************
* format_message (internal)
*/
static LPWSTR format_message( BOOL unicode_caller, DWORD dwFlags, LPCWSTR fmtstr,
struct format_args *format_args )
{
LPWSTR target,t;
DWORD talloced;
struct _format_message_data fmd;
LPCWSTR f;
DWORD width = dwFlags & FORMAT_MESSAGE_MAX_WIDTH_MASK;
BOOL eos = FALSE;
WCHAR ch;
target = t = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, 100 * sizeof(WCHAR) );
talloced = 100;
#define ADD_TO_T(c) do {\
*t++=c;\
if ((DWORD)(t-target) == talloced) {\
target = HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,talloced*2*sizeof(WCHAR));\
t = target+talloced;\
talloced*=2;\
} \
} while (0)
fmd.size = 100;
fmd.formatted = fmd.t = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, fmd.size * sizeof(WCHAR) );
f = fmtstr;
while (*f && !eos) {
@ -302,7 +308,7 @@ static LPWSTR format_message( BOOL unicode_caller, DWORD dwFlags, LPCWSTR fmtstr
(!(dwFlags & FORMAT_MESSAGE_ARGUMENT_ARRAY) && !format_args->list))
{
SetLastError(ERROR_INVALID_PARAMETER);
HeapFree(GetProcessHeap(), 0, target);
HeapFree(GetProcessHeap(), 0, fmd.formatted);
return NULL;
}
insertnr = *f-'0';
@ -319,20 +325,20 @@ static LPWSTR format_message( BOOL unicode_caller, DWORD dwFlags, LPCWSTR fmtstr
break;
}
f = format_insert( unicode_caller, insertnr, f, dwFlags, format_args, &str );
for (x = str; *x; x++) ADD_TO_T(*x);
for (x = str; *x; x++) format_add_char(&fmd, *x);
HeapFree( GetProcessHeap(), 0, str );
break;
case 'n':
ADD_TO_T('\r');
ADD_TO_T('\n');
format_add_char(&fmd, '\r');
format_add_char(&fmd, '\n');
f++;
break;
case 'r':
ADD_TO_T('\r');
format_add_char(&fmd, '\r');
f++;
break;
case 't':
ADD_TO_T('\t');
format_add_char(&fmd, '\t');
f++;
break;
case '0':
@ -341,49 +347,48 @@ static LPWSTR format_message( BOOL unicode_caller, DWORD dwFlags, LPCWSTR fmtstr
break;
case '\0':
SetLastError(ERROR_INVALID_PARAMETER);
HeapFree(GetProcessHeap(), 0, target);
HeapFree(GetProcessHeap(), 0, fmd.formatted);
return NULL;
ignore_inserts:
default:
if (dwFlags & FORMAT_MESSAGE_IGNORE_INSERTS)
ADD_TO_T('%');
ADD_TO_T(*f++);
format_add_char(&fmd, '%');
format_add_char(&fmd, *f++);
break;
}
} else {
ch = *f;
WCHAR ch = *f;
f++;
if (ch == '\r') {
if (*f == '\n')
f++;
if(width)
ADD_TO_T(' ');
format_add_char(&fmd, ' ');
else
{
ADD_TO_T('\r');
ADD_TO_T('\n');
format_add_char(&fmd, '\r');
format_add_char(&fmd, '\n');
}
} else {
if (ch == '\n')
{
if(width)
ADD_TO_T(' ');
format_add_char(&fmd, ' ');
else
{
ADD_TO_T('\r');
ADD_TO_T('\n');
format_add_char(&fmd, '\r');
format_add_char(&fmd, '\n');
}
}
else
ADD_TO_T(ch);
format_add_char(&fmd, ch);
}
}
}
*t = '\0';
*fmd.t = '\0';
return target;
return fmd.formatted;
}
#undef ADD_TO_T
/***********************************************************************
* FormatMessageA (KERNEL32.@)