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@ r4456:1e356a1bef6a
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Location: cpp/openttd-patchpack/source/string.c
r4456:1e356a1bef6a
2.7 KiB
text/x-c
(svn r6239) -Code cleanup: cleaned up PlayerVehWndProc
code to delete an empty shared orders list is now much simpler
cleaned up the code to handle button clicks
fixed an assert if widget 9 was pressed on a list with vehicles for another company
code to delete an empty shared orders list is now much simpler
cleaned up the code to handle button clicks
fixed an assert if widget 9 was pressed on a list with vehicles for another company
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#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 */
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