Function parse_expansion

v2/engine/function.c:1898–1913

 */

static VAR_PARSE_GROUP * parse_expansion( char const * * string )
{
    VAR_PARSE_GROUP * result = var_parse_group_new();
    char const * s = *string;
    for ( ; ; )
    {
        if ( try_parse_variable( &s, string, result ) ) {}
        else if ( s[ 0 ] == '\0' )
        {
            var_parse_group_maybe_add_constant( result, *string, s );
            return result;
        }
        else
            ++s;
    }
}

static VAR_PARSE_ACTIONS * parse_actions( char const * string )
{