/*

    Terminal Mixer - multi-point multi-user access to terminal applications

    Copyright (C) 2007  Lluís Batlle i Rossell

    Please find the license in the provided COPYING file.

*/

#include <stdlib.h>

#include <string.h>

#include "filter.h"

#include "main.h"

struct FTildes

{

    struct FFilter base;

};

static void ftildes_reset(struct FFilter *ff)

{

    ff->matched = 0;

}

static int ftildes_function(struct FFilter *ff, unsigned char c)

{

    struct FTildes *fs = (struct FTildes *) ff;

    dump_line("ftildes: base.matched: %i\n", fs->base.matched);

    switch(fs->base.matched)

    {

        case 0:

            if (c == '~')

                fs->base.matched++;

            else

                fs->base.matched = 0;

            break;

        case 1:

            if (c == '~')

                fs->base.matched++;

            else

                fs->base.matched = 0;

            break;

        case 2:

            if (c == '.')

            {

                fs->base.matched++;

                return 1;

            }

            else if (c == '~')

            {

                fs->base.matched++;

                return 1;

            } else

                fs->base.matched = 0;

            break;

        default:

            fs->base.matched = 0;

    }

    return 0;

}

struct FFilter *new_ftildes(char *p)

{

    struct FTildes *fs;

    fs = (struct FTildes *) malloc(sizeof(*fs));

    fs->base.matched = 0;

    fs->base.function = ftildes_function;

    fs->base.reset = ftildes_reset;

    fs->base.callback = 0;

    return (struct FFilter *) fs;

}

struct FFilter *new_ftildes_len(char *p, int len)

{

    struct FTildes *fs;

    fs = (struct FTildes *) malloc(sizeof(*fs));

    fs->base.matched = 0;

    fs->base.function = ftildes_function;

    fs->base.reset = ftildes_reset;

    fs->base.callback = 0;

    return (struct FFilter *) fs;

}