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(svn r5944) -Merge TGP (r5578, r5579, r5724, r5726): -Feature: filter for textboxes to only

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allow certain patterns (like numbers only)
This commit is contained in:
truelight
2006-08-19 09:31:22 +00:00
parent ee0daa0a4f
commit 83d56d6d79
19 changed files with 95 additions and 57 deletions
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30
string.c
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@@ -62,10 +62,38 @@ char* CDECL str_fmt(const char* str, ...)
void str_validate(char *str)
{
for (; *str != '\0'; str++)
if (!IsValidAsciiChar(*str)) *str = '?';
if (!IsValidAsciiChar(*str, CS_ALPHANUMERAL)) *str = '?';
}
void strtolower(char *str)
{
for (; *str != '\0'; str++) *str = tolower(*str);
}
/** Only allow valid ascii-function codes. Filter special codes like BELL and
* so on [we need a special filter here later]
* @param key character to be checked
* @return true or false depending if the character is printable/valid or not */
bool IsValidAsciiChar(byte key, CharSetFilter afilter)
{
// XXX This filter stops certain crashes, but may be too restrictive.
bool firsttest = false;
switch (afilter) {
case CS_ALPHANUMERAL:
firsttest = (key >= ' ' && key < 127);
break;
case CS_NUMERAL://we are quite strict, here
return (key >= 48 && key <= 57);
case CS_ALPHA:
default:
firsttest = ((key >= 'A' && key <= 'Z') || (key >= 'a' && key <= 'z'));
break;
}
return (firsttest || (key >= 160 &&
key != 0xAA && key != 0xAC && key != 0xAD && key != 0xAF &&
key != 0xB5 && key != 0xB6 && key != 0xB7 && key != 0xB9));
}