File: accept.cc

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#include "selector.ih"

// alternatives is  +.> or -,<
// if ch in alternatives, use alternatives.front() for accepted:
// accepted is      +  -  or -+
// 

    // by action.cc

// static
bool Selector::accept(int ch, string const &alternatives, 
                              string const &accepted) 
{
    return alternatives.find(ch) != string::npos    // +.>  -,<  or both
           and 
           accepted.find(alternatives.front()) != string::npos;
}