diff options
Diffstat (limited to 'string.c')
| -rw-r--r-- | string.c | 26 |
1 files changed, 15 insertions, 11 deletions
@@ -65,18 +65,15 @@ void str_validate(char *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] +/** + * Only allow certain keys. You can define the filter to be used. This makes + * sure no invalid keys can get into an editbox, like BELL. * @param key character to be checked - * @return true or false depending if the character is printable/valid or not */ + * @param afilter the filter to use + * @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) { @@ -84,8 +81,9 @@ bool IsValidAsciiChar(byte key, CharSetFilter afilter) firsttest = (key >= ' ' && key < 127); break; - case CS_NUMERAL://we are quite strict, here - return (key >= 48 && key <= 57); + /* We are very strict here */ + case CS_NUMERAL: + return (key >= '0' && key <= '9'); case CS_ALPHA: default: @@ -93,7 +91,13 @@ bool IsValidAsciiChar(byte key, CharSetFilter afilter) break; } + /* Allow some special chars too that are non-ASCII but still valid (like '^' above 'a') */ return (firsttest || (key >= 160 && key != 0xAA && key != 0xAC && key != 0xAD && key != 0xAF && key != 0xB5 && key != 0xB6 && key != 0xB7 && key != 0xB9)); } + +void strtolower(char *str) +{ + for (; *str != '\0'; str++) *str = tolower(*str); +} |