/******************************************************************************
* SWBuf::append - appends a value to the current value of this SWBuf
*
*/
void SWBuf::append(const char *str, long max) {
// if (!str) //A null string was passed
// return;
if (max < 0)
max = strlen(str);
assureMore(max+1);
for (;((max)&&(*str));max--)
*end++ = *str++;
*end = 0;
}
/******************************************************************************
* SWBuf::appendFormatted - appends formatted strings to the current value of this SWBuf
* WARNING: This function can only write at most
* JUNKBUFSIZE to the string per call.
*/
void SWBuf::appendFormatted(const char *format, ...) {
va_list argptr;
va_start(argptr, format);
#ifdef NO_VSNPRINTF
int len = vsprintf(junkBuf, format, argptr)+1;
#else
int len = vsnprintf(0, 0, format, argptr)+1;
#endif
va_end(argptr);
assureMore(len);
va_start(argptr, format);
end += vsprintf(end, format, argptr);
va_end(argptr);
}
/******************************************************************************
* SWBuf::appendFormatted - appends formatted strings to the current value of this SWBuf
* WARNING: This function can only write at most
* JUNKBUFSIZE to the string per call.
*/
SWBuf &SWBuf::appendFormatted(const char *format, ...) {
va_list argptr;
va_start(argptr, format);
#ifdef NO_VSNPRINTF
static char junkBuf[JUNKBUFSIZE];
int len = vsprintf(junkBuf, format, argptr)+1;
#else
int len = vsnprintf(0, 0, format, argptr)+1;
#endif
va_end(argptr);
assureMore(len);
va_start(argptr, format);
end += vsprintf(end, format, argptr);
va_end(argptr);
return *this;
}
void SWBuf::insert(unsigned long pos, const char* str, unsigned long start, signed long max) {
// if (!str) //A null string was passed
// return;
str += start;
int len = (max > -1) ? max : strlen(str);
if (!len || (pos > length())) //nothing to do, return
return;
// pos==length(), so we can call append in this case
if (pos == length()) { //append is more efficient
append(str, max);
return;
}
assureMore( len );
memmove(buf + pos + len, buf + pos, (end - buf) - pos); //make a gap of "len" bytes
memcpy(buf+pos, str, len);
end += len;
*end = 0;
}
