
#include <ngx_config.h>


#if 0

typedef struct ngx_conf_file_t {
    ngx_fd_t  fd;
    char     *name;
    int       line;
    char     *pos;
};

typedef struct ngx_conf_t {
    char             *name;
    ngx_array_t      *args;

    ngx_conf_file_t  *file;
    ngx_log_t        *log;

    void *context;             # ngx_http_conf_t
};

static int argument_number[] = {
    NGX_CONF_NOARGS,
    NGX_CONF_TAKE1,
    NGX_CONF_TAKE2,
    NGX_CONF_TAKE3
};


ngx_conf_parse(cf, container, filename)
{
    create cf;

    *conatiner(cf);

    if (filename) {
        open;
    }

    for ( ;; ) {
        rc = ngx_conf_read_token(cf);

NGX_OK, NGX_ERROR, NGX_CONF_FILE_DONE, NGX_CONF_BLOCK_DONE

        if (rc != NGX_OK)
            return rc;

"listen address:port;"
"location /images/ {"

        cmd = ngx_conf_find_token(cf);
        if (cmd == NULL) {
            ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
                          "unknown directive \"%s\" in %s:%d",
                          cf->name, cf->file->name, cf->file->line);
            return NGX_ERROR;
        }

        if (cmd->type == NGX_CONF_CONTAINER) {
            ngx_conf_parse(cf, cmd->container, NULL);

        } else if (cmd->type == NGX_CONF_FLAG) {

            if (cf->args->nelts != 1) {
                ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
                              "invalid number of arguments "
                              "in directive \"%s\" in %s:%d",
                              cf->name, cf->file->name, cf->file->line);
                return NGX_ERROR;
            }

            if (ngx_strcasecmp(cf->args->elts[0], "on") == 0) {
                flag = 1;

            } else if (ngx_strcasecmp(cf->args->elts[0], "off") == 0) {
                flag = 0;

            } else {
                ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
                              "invalid flag in directive \"%s\" in %s:%d",
                              cf->name, cf->file->name, cf->file->line);
                return NGX_ERROR;
            }

            rv = cmd->set(cf, cmd->offset, flag);
            if (rv) {
                 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
                               "%s in directive \"%s\" in %s:%d",
                               rv, cf->name, cf->file->name, cf->file->line);
                return NGX_ERROR;
            }

        } else if (cmd->type & argument_number[args->nelts]) {
            rv = cmd->set(cf, cmd->offset, cf->args);
            if (rv) {
                 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
                               "%s in directive \"%s\" in %s:%d",
                               rv, cf->name, cf->file->name, cf->file->line);
                return NGX_ERROR;
            }

        } else {
            ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
                          "invalid number of arguments "
                          "in directive \"%s\" in %s:%d",
                          cf->name, cf->file->name, cf->file->line);
            return NGX_ERROR;
        }
    }

    if (filename) {
        close;
    }
}    

int ngx_conf_read_token(ngx_conf_t *cf)
{

    need_space = 0;
    last_space = 1;
    len = 0;
    quoted = s_quoted = d_quoted = 0;

    cf->args->nelts = 0;

    for (/* void */ ; cf->pos < cf->end; cf->pos++) {

        ch = *cf->pos;

        if (ch == LF)
            cf->line++;

        if (quoted) {
            quoted = 0;
            continue;
        }

        len++;

        if (ch = '\\') {
            quoted = 1;
            continue;
        }

        if (d_quoted) {

            if (ch == '"') {
                d_qouted = 0;
                need_space = 1;
                last_space = 1;
                continue;
            }

        } else if (s_quoted) {

            if (ch == '\'') {
                s_qouted = 0;
                need_space = 1;
                last_space = 1;
                continue;
            }

        } else {

            if (ch == ' ' || ch == '\t' || ch == CR || ch == LF) {
                ngx_test_null(word, ngx_push_array(cf->args), NGX_ERRROR);
                ngx_test_null(*word, ngx_palloc(cf->temp_pool, len + 1),
                              NGX_ERROR);

                for (dst = *word, src = cf->start; src < cf->pos; /* void */) {
                    if (*src == '\\')
                        src++;
                    *dst++ = *src++;
                }
                *dst = '\0';

                need_space = 0;
                last_space = 1;
                continue;
            }

            if (need_space) {
                return NGX_ERROR;
            }

            if (ch == ';')
                return NGX_OK;

            if (ch == '{')
                return NGX_OK;

            if (ch == '}')
                return NGX_BLOCK_DONE;

            if (last_space) {
                if (ch == '"') {
                    d_qouted = 1;
                    continue;
                }

                if (ch == '\'') {
                    s_qouted = 1;
                    continue;
                }
            }

            last_space = 0;
        }
    }
}

container
    server
    location
    module
    if

http_conf current server
          current location


ngx_conf_t *ngx_conf_open(char *filename, ngx_log_t *log)
{
    ngx_cf->fd = ngx_open_file(config, NGX_FILE_RDONLY);
    if (ngx_conf->fd == -1) {
        ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
                      "ngx_conf_open: "
                      ngx_open_file_n " %s failed", filename);

        return NULL;
    }

    ngx_conf->name = filename;
    ngx_conf->log = log;
    return ngx_conf;
}

void ngx_conf_close(ngx_conf_t *cf)
{
    if (ngx_close_file(cf->fd) == -1) {
        ngx_log_error(NGX_LOG_ERR, cf->log, ngx_errno,
                      ngx_close_file_n " %s failed", cf->name);
    }

    cf->fd = -1;
}


#endif


char *ngx_conf_set_size_slot(char *conf, int offset, char *value)
{
    int size;

    size = atoi(value);
    if (size < 0)
        return "value must be greater or equal to zero";

    *(int *) (conf + offset) = size;
    return NULL;
}

char *ngx_conf_set_time_slot(char *conf, int offset, char *value)
{
    int size;

    size = atoi(value);
    if (size < 0)
        return "value must be greater or equal to zero";

    *(int *) (conf + offset) = size;
    return NULL;
}