/*
* Automated Testing Framework (atf)
*
* Copyright (c) 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include <errno.h>
#include <limits.h>
#include <string.h>
#include <stdlib.h>

#include "atf-c/error.h"

#include "dynstr.h"
#include "sanity.h"
#include "text.h"

atf_error_t
atf_text_for_each_word(const char *instr, const char *sep,
                      atf_error_t (*func)(const char *, void *),
                      void *data)
{
   atf_error_t err;
   char *str, *str2, *last;

   str = strdup(instr);
   if (str == NULL) {
       err = atf_no_memory_error();
       goto out;
   }

   err = atf_no_error();
   str2 = strtok_r(str, sep, &last);
   while (str2 != NULL && !atf_is_error(err)) {
       err = func(str2, data);
       str2 = strtok_r(NULL, sep, &last);
   }

   free(str);
out:
   return err;
}

atf_error_t
atf_text_format(char **dest, const char *fmt, ...)
{
   atf_error_t err;
   va_list ap;

   va_start(ap, fmt);
   err = atf_text_format_ap(dest, fmt, ap);
   va_end(ap);

   return err;
}

atf_error_t
atf_text_format_ap(char **dest, const char *fmt, va_list ap)
{
   atf_error_t err;
   atf_dynstr_t tmp;
   va_list ap2;

   va_copy(ap2, ap);
   err = atf_dynstr_init_ap(&tmp, fmt, ap2);
   va_end(ap2);
   if (!atf_is_error(err))
       *dest = atf_dynstr_fini_disown(&tmp);

   return err;
}

atf_error_t
atf_text_split(const char *str, const char *delim, atf_list_t *words)
{
   atf_error_t err;
   const char *end;
   const char *iter;

   err = atf_list_init(words);
   if (atf_is_error(err))
       goto err;

   end = str + strlen(str);
   INV(*end == '\0');
   iter = str;
   while (iter < end) {
       const char *ptr;

       INV(iter != NULL);
       ptr = strstr(iter, delim);
       if (ptr == NULL)
           ptr = end;

       INV(ptr >= iter);
       if (ptr > iter) {
           atf_dynstr_t word;

           err = atf_dynstr_init_raw(&word, iter, ptr - iter);
           if (atf_is_error(err))
               goto err_list;

           err = atf_list_append(words, atf_dynstr_fini_disown(&word), true);
           if (atf_is_error(err))
               goto err_list;
       }

       iter = ptr + strlen(delim);
   }

   INV(!atf_is_error(err));
   return err;

err_list:
   atf_list_fini(words);
err:
   return err;
}

atf_error_t
atf_text_to_bool(const char *str, bool *b)
{
   atf_error_t err;

   if (strcasecmp(str, "yes") == 0 ||
       strcasecmp(str, "true") == 0) {
       *b = true;
       err = atf_no_error();
   } else if (strcasecmp(str, "no") == 0 ||
              strcasecmp(str, "false") == 0) {
       *b = false;
       err = atf_no_error();
   } else {
       /* XXX Not really a libc error. */
       err = atf_libc_error(EINVAL, "Cannot convert string '%s' "
                            "to boolean", str);
   }

   return err;
}

atf_error_t
atf_text_to_long(const char *str, long *l)
{
   atf_error_t err;
   char *endptr;
   long tmp;

   errno = 0;
   tmp = strtol(str, &endptr, 10);
   if (str[0] == '\0' || *endptr != '\0')
       err = atf_libc_error(EINVAL, "'%s' is not a number", str);
   else if (errno == ERANGE || (tmp == LONG_MAX || tmp == LONG_MIN))
       err = atf_libc_error(ERANGE, "'%s' is out of range", str);
   else {
       *l = tmp;
       err = atf_no_error();
   }

   return err;
}