line_select.c

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/***************************************************************************
 *   Copyright (C) 2007-2011 Mike Kinghan, imk@strudl.org                  *
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#include "line_select.h"
#include "args.h"
#include "if_control.h"
#include "directives_tally.h"
#include "io.h"

NO_PRIVATE_STATE(line_select);
IMPLEMENT(line_select,ZERO_INITABLE);
/* API */

bool
dropping_line(void)
{
    return INSOURCE && (dead_line() ^ GET_PUBLIC(args,complement));
}

bool
eligible_line(int cmd_code, int directive)
{
    bool verdict = false;
    if (((1 << (cmd_code - 1)) & GET_PUBLIC(args,command)->cmd_mask) != 0) {
        if (GET_PUBLIC(args,list_only_inactive)) {
            verdict = GET_PUBLIC(line_select,dropping_line) &&
                        !is_unconditional_line();
        } else if (GET_PUBLIC(args,list_only_active)) {
            verdict = !GET_PUBLIC(line_select,dropping_line) &&
                        is_unconditional_line();
        } else {
            verdict = true;
        }
        if (verdict && cmd_code == CMD_SYMBOLS) {
            switch(directive) {
            case HASH_IFDEF:
            case HASH_IFNDEF:
            case HASH_IF:
                verdict = GET_PUBLIC(args,list_symbols_in_ifs);
                break;
            case HASH_DEFINE:
                verdict = GET_PUBLIC(args,list_symbols_in_defs);
                break;
            case HASH_UNDEF:
                verdict = GET_PUBLIC(args,list_symbols_in_undefs);
                break;
            case HASH_INCLUDE:
                verdict = GET_PUBLIC(args,list_symbols_in_includes);
                break;
            default:
                ;
            }
        }
    }
    return verdict;
}


/* EOF */