Function try_parse_variable

src/engine/function.cpp:2179–2212

 */

static int32_t try_parse_variable( char const * * s_, char const * * string,
    VAR_PARSE_GROUP * out )
{
    char const * s = *s_;
    if ( s[ 0 ] == '$' && s[ 1 ] == '(' )
    {
        var_parse_group_maybe_add_constant( out, *string, s );
        s += 2;
        var_parse_group_add( out, parse_variable( &s ) );
        *string = s;
        *s_ = s;
        return 1;
    }
    if ( s[ 0 ] == '@' && s[ 1 ] == '(' )
    {
        var_parse_group_maybe_add_constant( out, *string, s );
        s += 2;
        VAR_PARSE_VAR *vp = (VAR_PARSE_VAR*)parse_variable( &s );
        /* We at least need the empty (:E) modifier. */
        if (var_parse_var_mod_index(vp, 'E') >= 0)
        {
            vp->base.type = VAR_PARSE_TYPE_FILE;
            var_parse_group_add( out, (VAR_PARSE*)vp );
            *string = s;
            *s_ = s;
            return 1;
        }
        else
        {
            var_parse_var_free( vp );
        }
    }
    return 0;
}


static char const * current_file = "";