Remove the 'how' parameter to rsindex(), making it reverse-search for only the first matching character,
as sindex() already does. There are only two callers, and one already passed a hardcoded value of 1.
Also change rsindex() so that it starts searching at the character BEFORE the passed in position. This
makes it easier to repeatedly call rsindex() in a loop to search for the Nth matching character, and
also fixes a technical instance of undefined behaviour where a pointer is decremented to point before
the start of the string.
Remove the 'mark' parameter to strsearch(). Instead, always forward-search from the beginning of the
string and reverse-search from the end of the string, as this is what the two callers want anyway.
Bump the module ABI version because these functions are exported to modules.
The old code could move the variable 'pointer' backwards one character before the start
of the string (then incremented it again before returning). Formally this is undefined
behaviour, so fix it.
like x86-64, where sizeof(int) != sizeof (void *). This involves correctly
casting every function pointer from the global table to the correct
function type, which has the added benefit of allowing type-checking of
function arguments and return values.
git-svn-id: svn://svn.code.sf.net/p/bitchx/code/trunk@26 13b04d17-f746-0410-82c6-800466cd88b0
