mirror of
https://github.com/JGRennison/OpenTTD-patches.git
synced 2024-11-02 09:40:35 +00:00
128 lines
2.7 KiB
C
128 lines
2.7 KiB
C
/* $Id$ */
|
|
|
|
#include "stdafx.h"
|
|
#include "string.h"
|
|
|
|
#include <stdarg.h>
|
|
#include <ctype.h> // required for tolower()
|
|
|
|
void ttd_strlcat(char *dst, const char *src, size_t size)
|
|
{
|
|
assert(size > 0);
|
|
for (; size > 0 && *dst != '\0'; --size, ++dst) {}
|
|
assert(size > 0);
|
|
while (--size > 0 && *src != '\0') *dst++ = *src++;
|
|
*dst = '\0';
|
|
}
|
|
|
|
|
|
void ttd_strlcpy(char *dst, const char *src, size_t size)
|
|
{
|
|
assert(size > 0);
|
|
while (--size > 0 && *src != '\0') *dst++ = *src++;
|
|
*dst = '\0';
|
|
}
|
|
|
|
|
|
char* strecat(char* dst, const char* src, const char* last)
|
|
{
|
|
assert(last == NULL || dst <= last);
|
|
for (; *dst != '\0'; ++dst)
|
|
if (dst == last) return dst;
|
|
for (; *src != '\0' && dst != last; ++dst, ++src) *dst = *src;
|
|
*dst = '\0';
|
|
return strecpy(dst, src, last);
|
|
}
|
|
|
|
|
|
char* strecpy(char* dst, const char* src, const char* last)
|
|
{
|
|
assert(last == NULL || dst <= last);
|
|
for (; *src != '\0' && dst != last; ++dst, ++src) *dst = *src;
|
|
*dst = '\0';
|
|
return dst;
|
|
}
|
|
|
|
|
|
char* CDECL str_fmt(const char* str, ...)
|
|
{
|
|
char buf[4096];
|
|
va_list va;
|
|
int len;
|
|
char* p;
|
|
|
|
va_start(va, str);
|
|
len = vsnprintf(buf, lengthof(buf), str, va);
|
|
va_end(va);
|
|
p = malloc(len + 1);
|
|
if (p != NULL) memcpy(p, buf, len + 1);
|
|
return p;
|
|
}
|
|
|
|
void str_validate(char *str)
|
|
{
|
|
for (; *str != '\0'; str++)
|
|
if (!IsValidAsciiChar(*str, CS_ALPHANUMERAL)) *str = '?';
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
* @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)
|
|
{
|
|
bool firsttest = false;
|
|
|
|
switch (afilter) {
|
|
case CS_ALPHANUMERAL:
|
|
firsttest = (key >= ' ' && key < 127);
|
|
break;
|
|
|
|
/* We are very strict here */
|
|
case CS_NUMERAL:
|
|
return (key >= '0' && key <= '9');
|
|
|
|
case CS_ALPHA:
|
|
default:
|
|
firsttest = ((key >= 'A' && key <= 'Z') || (key >= 'a' && key <= 'z'));
|
|
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);
|
|
}
|
|
|
|
#ifdef WIN32
|
|
int CDECL snprintf(char *str, size_t size, const char *format, ...)
|
|
{
|
|
va_list ap;
|
|
int ret;
|
|
|
|
va_start(ap, format);
|
|
ret = vsnprintf(str, size, format, ap);
|
|
va_end(ap);
|
|
return ret;
|
|
}
|
|
|
|
#ifdef _MSC_VER
|
|
int CDECL vsnprintf(char *str, size_t size, const char *format, va_list ap)
|
|
{
|
|
int ret;
|
|
ret = _vsnprintf(str, size, format, ap);
|
|
if (ret < 0) str[size - 1] = '\0';
|
|
return ret;
|
|
}
|
|
#endif /* _MSC_VER */
|
|
|
|
#endif /* WIN32 */
|