Enable use of multiple patterns at the same time.

[ghost]

Enable use of multiple patterns at the same time. review 3

[kokke]

Hi @komdivkote

I can't review all these changes at once. There is so much that has been changed, so I feel it has moved a bit away from the original project, with the dynamic allocation and all.

I do like the changes however and I would like to have both styles available in this library.
Is it possible for me to merge these changes to a separate branch?

I haven't had much experiencing using branches with PRs on Github...

[ghost]

I would like to have both styles available in this library.

I have two branches in the forked repo i.e master an freebsd. I also have limited expirience with github. I was working a lot with SVN.

[ghost]

By the way, I have noticed that the branching code is causing recursion when the
else if (pattern[1].type == BRANCH) { return (matchpattern(pattern, text) || matchpattern(&pattern[2], text)); }
and working generally incorrectly. For example, regex '^abcd|abdc$' applied on the string abdc will fail because the '|'-branch will never be reached.
Also there is lack of the grouping '()'. For this reason the branching is not possible to use. I tried to implement grouping but it is quite complicated.

Also in function __re_compile_count there is improperly length of the objects list calculation, I forgot that the '' is an escape character and does not require space in array.
`
while (pattern[i] != '\0')
{
c = pattern[i];

    objs++;  

    if (c == '\\')  
    {  
        i+=2;  
        continue;  
    }  

`

Unfortunately, on the complex regex expressions using interactive matching, it still requires large stack, so I have to develop the code almost from scratch and will not be able to make further commits.