commands/input/map_from_region: don't treat 0x prefix as hex identifier

When using the `map_from_region` for pen tables, we will usually make
the available area as big as possible while maintaining the proportions
with the screen.

As most of the tablets uses a 16:10 ratios while the most popular screen
ratios is still 16:9, the argument for most people should be `0x0 1x0.9`
to have the maximum effective area.

However, the argument above won't work because the current code will
treat `0x...` as a hexadecimal number, instead of setting both `x` and
`y` to `0`.

This fix allows the use of the following syntax:

```
input type:tablet_tool {
	map_from_region 0x0 1x0.9
}
```
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iff 2023-09-07 03:31:35 +02:00 committed by GitHub
parent 89f8531268
commit 3dd2f4a67f
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@ -11,11 +11,21 @@ static bool parse_coords(const char *str, double *x, double *y, bool *mm) {
*mm = false;
char *end;
// Check for "0x" prefix to avoid strtod treating the string as hex
if (str[0] == '0' && str[1] == 'x') {
if (strlen(str) < 3) {
return false;
}
*x = 0;
end = (char *)str + 2;
} else {
*x = strtod(str, &end);
if (end[0] != 'x') {
return false;
}
++end;
}
*y = strtod(end, &end);
if (end[0] == 'm') {