static int unit_find(const char *str, bUnitDef *unit)
{
if (unit_find_str(str, unit->name_short)) return 1;
if (unit_find_str(str, unit->name_plural)) return 1;
if (unit_find_str(str, unit->name_alt)) return 1;
if (unit_find_str(str, unit->name)) return 1;
return 0;
}
static bool unit_find(const char *str, bUnitDef *unit)
{
if (unit_find_str(str, unit->name_short)) return true;
if (unit_find_str(str, unit->name_plural)) return true;
if (unit_find_str(str, unit->name_alt)) return true;
if (unit_find_str(str, unit->name)) return true;
return false;
}
static int unit_scale_str(char *str, int len_max, char *str_tmp, double scale_pref, bUnitDef *unit,
const char *replace_str)
{
char *str_found;
if ((len_max > 0) && (str_found = (char *)unit_find_str(str, replace_str))) {
/* XXX - investigate, does not respect len_max properly */
int len, len_num, len_name, len_move, found_ofs;
found_ofs = (int)(str_found - str);
len = strlen(str);
len_name = strlen(replace_str);
len_move = (len - (found_ofs + len_name)) + 1; /* 1+ to copy the string terminator */
len_num = BLI_snprintf(str_tmp, TEMP_STR_SIZE, "*%g"SEP_STR, unit->scalar / scale_pref); /* # removed later */
if (len_num > len_max)
len_num = len_max;
if (found_ofs + len_num + len_move > len_max) {
/* can't move the whole string, move just as much as will fit */
len_move -= (found_ofs + len_num + len_move) - len_max;
}
if (len_move > 0) {
/* resize the last part of the string */
memmove(str_found + len_num, str_found + len_name, len_move); /* may grow or shrink the string */
}
if (found_ofs + len_num > len_max) {
/* not even the number will fit into the string, only copy part of it */
len_num -= (found_ofs + len_num) - len_max;
}
if (len_num > 0) {
/* its possible none of the number could be copied in */
memcpy(str_found, str_tmp, len_num); /* without the string terminator */
}
/* since the null terminator wont be moved if the stringlen_max
* was not long enough to fit everything in it */
str[len_max - 1] = '\0';
return found_ofs + len_num;
}
return 0;
}
/* 45µm --> 45um */
void bUnit_ToUnitAltName(char *str, int len_max, const char *orig_str, int system, int type)
{
bUnitCollection *usys = unit_get_system(system, type);
bUnitDef *unit;
bUnitDef *unit_def = unit_default(usys);
/* find and substitute all units */
for (unit = usys->units; unit->name; unit++) {
if (len_max > 0 && (unit->name_alt || unit == unit_def)) {
const char *found = unit_find_str(orig_str, unit->name_short);
if (found) {
int offset = (int)(found - orig_str);
int len_name = 0;
/* copy everything before the unit */
offset = (offset < len_max ? offset : len_max);
strncpy(str, orig_str, offset);
str += offset;
orig_str += offset + strlen(unit->name_short);
len_max -= offset;
/* print the alt_name */
if (unit->name_alt)
len_name = BLI_strncpy_rlen(str, unit->name_alt, len_max);
else
len_name = 0;
len_name = (len_name < len_max ? len_name : len_max);
str += len_name;
len_max -= len_name;
}
}
}
/* finally copy the rest of the string */
strncpy(str, orig_str, len_max);
}