gbx_local.c

Gambas is a graphical development environment based on a Basic interpreter, like Visual Basic. It us

  if (len_fmt >= COMMON_BUF_MAX)
    return TRUE;

  /* on recherche les formats de nombre n�atif et nul */

  pos = search(fmt, len_fmt, ";", 0, FALSE);

  if (number <= 0.0)
  {
    if (pos < len_fmt)
    {
      if (number < 0.0)
      {
        if ((pos < (len_fmt - 1)) && fmt[pos + 1] != ';')
        {
          fmt = &fmt[pos + 1];
          len_fmt -= pos + 1;
        }
        else
          len_fmt = pos;
      }
      else /* nombre �al �0 */
      {
        pos2 = search(fmt, len_fmt, ";", pos + 1, FALSE);
        if (pos2 < len_fmt)
        {
          if ((pos2 < (len_fmt - 1)) && fmt[pos2 + 1] != ';')
          {
            fmt = &fmt[pos2 + 1];
            len_fmt -= pos2 + 1;
          }
          else
            len_fmt = pos;
        }
      }
    }
  }
  else if (pos < len_fmt)
    len_fmt = pos;


  /* on transcrit le format du basic en format pour sprintf */

  sign = 0;
  comma = FALSE;
  before = 0;
  before_zero = 0;
  point = FALSE;
  after = 0;
  after_zero = 0;
  exposant = 0;
  exp_sign = 0;
  exp_zero = 0;

  begin();

  /* Recherche du '%' */

  pos = search(fmt, len_fmt, "%", 0, FALSE);
  if (pos < len_fmt)
    number *= 100;

  /* pr�ixe de formatage */

  pos = search(fmt, len_fmt, "-+#0.,", 0, FALSE);

  if (pos >= len_fmt)
    return TRUE;

  if (pos > 0)
    add_string(fmt, pos, NULL);

  /* on d�ermine le signe */

  if (fmt[pos] == '-')
  {
    sign = ' ';
    pos++;
  }
  else if (fmt[pos] == '+')
  {
    sign = '+';
    pos++;
  }

  if (pos >= len_fmt)
    return TRUE;

  /* Les chiffres avant la virgule */

  for(; pos < len_fmt; pos++)
  {
    c = fmt[pos];

    if (c == ',')
    {
      comma = TRUE;
      continue;
    }

    if (c == '#' || c == '0')
    {
      before++;
      if (c == '0' || before_zero > 0)
        before_zero++;
      continue;
    }

    break;
  }

  if (pos >= len_fmt)
    goto _FORMAT;

  /* La virgule */

  if (fmt[pos] != '.')
    goto _FORMAT;

  pos++;
  point = TRUE;

  if (pos >= len_fmt)
    goto _FORMAT;

  /* Les chiffres apr� la virgule */

  for(; pos < len_fmt; pos++)
  {
    c = fmt[pos];

    if (c == '#' || c == '0')
    {
      after++;
      if (c == '0')
        after_zero = after;
      continue;
    }

    break;
  }

  if (pos >= len_fmt)
    goto _FORMAT;

  /* L'exposant */

  if (fmt[pos] == 'e' || fmt[pos] == 'E')
  {
    exposant = fmt[pos];
    exp_sign = ' ';

    pos++;
    if (pos >= len_fmt)
      return TRUE;

    if (fmt[pos] == '-')
    {
      pos++;
    }
    else if (fmt[pos] == '+')
    {
      exp_sign = '+';
      pos++;
    }

    if (pos >= len_fmt)
      return TRUE;

    for(; pos < len_fmt; pos++)
    {
      c = fmt[pos];

      if (c == '#' || c == '0')
      {
        exp_digit++;
        if (c == '0' || exp_zero > 0)
          exp_zero++;
        continue;
      }

      break;
    }
  }

_FORMAT:

  if (before == 0 && after == 0)
    return TRUE;

  /* le signe */

  number_sign = fsgn(number);
  add_sign(sign, number_sign);

  /* le nomber */

  number_mant = frexp10(fabs(number), &number_exp);
  number_exp++; /* simplifie les choses */

  number_real_exp = number_exp;

  if (exposant != 0)
    number_exp = 1;

  ndigit = sprintf(buf, "%.*f", MinMax(after + number_exp - 1 + 1, 0, DBL_DIG - 2), number_mant / 10);

  // should return "0[.]...", or "1[.]..." if the number is rounded up.

  buf_start = buf;

  if (buf_start[0] == '1') // the number has been rounded up.
    number_exp++;

  if (ndigit > 1) // so there is a point
  {
    if (buf_start[0] == '0')
    {
      buf_start += 2;
      ndigit -= 2;
    }
    else
    {
      buf_start[1] = buf_start[0];
      ndigit--;
      buf_start++;
    }

    while (ndigit > 1 && buf_start[ndigit - 1] == '0')
      ndigit--;
  }

  /* les chiffres avant la virgule */

  thousand = Max(before_zero, number_exp);
  thousand_ptr = comma ? &thousand : NULL;

  if (number_exp > 0)
  {
    if (before_zero > number_exp)
      add_zero(before_zero - number_exp, thousand_ptr);

    add_string(buf_start, Min(number_exp, ndigit), thousand_ptr);

    if (number_exp > ndigit)
      add_zero(number_exp - ndigit, thousand_ptr);
  }
  else
  {
    if (before_zero > 0)
      add_zero(before_zero, thousand_ptr);
  }

  /* la virgule */

  if (point)
    put_char(local_current->decimal_point);

  /* les chiffres apr� la virgule */

  if ((ndigit - number_exp) > 0)
  {
    if (number_exp < 0)
    {
      n = Min(after, (- number_exp));
      if (n == after)
      {
        add_zero(after_zero, NULL);
        goto _EXPOSANT;
      }
      else
      {
        add_zero(n, NULL);
        after -= n;
        after_zero -= n;
      }
    }

    if (number_exp > 0)
    {
      buf_start += number_exp;
      ndigit -= number_exp;
    }

    n = Min(ndigit, after);
    add_string(buf_start, n, NULL);

    after -= n;
    after_zero -= n;

    if (after_zero > 0)
      add_zero(after_zero, NULL);
  }
  else
    add_zero(after_zero, NULL);

_EXPOSANT:

  /* exposant */

  if (exposant != 0 && number != 0.0)
  {
    put_char(exposant);
    n = sprintf(buf, "%+.*d", exp_zero, number_real_exp - 1);
    add_string(buf, n, NULL);
  }

  /* suffixe de formatage */

  if (pos < len_fmt)
    add_string(&fmt[pos], len_fmt - pos, NULL);

  /* On enl�e la virgule si elle se trouve �la fin */

  buffer_pos--;
  if (look_char() != local_current->decimal_point)
    buffer_pos++;

  /* on retourne le r�ultat */

  end(str, len_str);
  return FALSE;
}
#endif

PRIVATE void add_strftime(const char *format, struct tm *tm)
{
  int n;

  n = strftime(get_current(), get_size_left(), format, tm);
  buffer_pos += n;
}


PRIVATE void add_date_token(DATE_SERIAL *date, char *token, int count)
{
  struct tm tm;
  char buf[8];
  int n;

  if (*token == 0)
    return;

  switch (*token)
  {
    case 'd':

      if (count <= 2)
      {
        n = sprintf(buf, (count == 1 ? "%d" : "%02d"), date->day);
        add_string(buf, n, NULL);
      }
      else if (count >= 3)
      {
        tm.tm_wday = date->weekday;
        add_strftime(count == 3 ? "%a" : "%A", &tm);
      }

      break;

    case 'm':

      if (count <= 2)
      {
        n = sprintf(buf, (count == 1 ? "%d" : "%02d"), date->month);
        add_string(buf, n, NULL);
      }
      else if (count >= 3)
      {
        tm.tm_mon = date->month - 1;
        add_strftime(count == 3 ? "%b" : "%B", &tm);
      }

      break;

    case 'y':

      if (count <= 2 && date->year >= 1939 && date->year <= 2038)
        n = sprintf(buf, "%02d", date->year - (date->year >= 2000 ? 2000 : 1900));
      else
        n = sprintf(buf, "%d", date->year);

      add_string(buf, n, NULL);

      break;

    case 'h':
    case 'n':
    case 's':

      n = sprintf(buf, (count == 1) ? "%d" : "%02d",
        (*token == 'h') ? date->hour : ((*token == 'n') ? date->min : date->sec));

      add_string(buf, n, NULL);

      break;
  }

  *token = 0;
}


PUBLIC boolean LOCAL_format_date(DATE_SERIAL *date, int fmt_type, const char *fmt, long len_fmt, char **str, long *len_str)
{
  char c;
  long pos;
  long pos_ampm = -1;
  struct tm date_tm;
  char real_hour = 0;

  char token;
  int token_count;

  local_current = &LOCAL_local;

  switch(fmt_type)
  {
    case LF_USER:
      break;

    case LF_STANDARD:
    case LF_GENERAL_DATE:
      if (date->year == 0)
        fmt = local_current->long_time;
      else if (date->hour == 0 && date->min == 0 && date->sec == 0)
        fmt = local_current->short_date;
      else
        fmt = local_current->general_date;
      break;

    case LF_LONG_DATE:
      fmt = local_current->long_date;
      break;

    case LF_MEDIUM_DATE:
      fmt = local_current->medium_date;
      break;

    case LF_SHORT_DATE:
      fmt = local_current->short_date;
      break;

    case LF_LONG_TIME:
      fmt = local_current->long_time;
      break;

    case LF_MEDIUM_TIME:
      fmt = local_current->medium_time;
      break;

    case LF_SHORT_TIME:
      fmt = local_current->short_time;
      break;

    default:
      return TRUE;
  }

  if (len_fmt == 0)
    len_fmt = strlen(fmt);

  if (len_fmt >= COMMON_BUF_MAX)
    return TRUE;

  /* recherche de AM/PM */

  for (pos = 0; pos < len_fmt - 4; pos++)
  {
    if (fmt[pos] == '\\')
    {
      pos++;
      continue;
    }

    if (strncasecmp(&fmt[pos], "am/pm", 5) == 0)
    {
      pos_ampm = pos;
      real_hour = date->hour;
      if (date->hour >= 12)
        date->hour -= 12;
      if (date->hour == 0)
      	date->hour = 12;
      break;
    }
  }

  /* Formatage */

  begin();

  token = 0;
  token_count = 0;

  for (pos = 0; pos < len_fmt; pos++)
  {
    c = fmt[pos];

    if (pos == pos_ampm)
    {
      /* passage en struct tm */

      date_tm.tm_sec = date->sec;
      date_tm.tm_min = date->min;
      date_tm.tm_hour = real_hour;
      date_tm.tm_mday = 1;
      date_tm.tm_mon = 0;
      date_tm.tm_year = 0;

      add_strftime((c == 'a' ? "%P" : "%p"), &date_tm);

      pos += 4;
      continue;
    }

    if (index("dmyhns", c) != NULL)
    {
      if (c != token)
      {
        add_date_token(date, &token, token_count);
        if (token == 'h' && c == 'm')
          c = 'n';

        token = c;
        token_count = 0;
      }

      token_count++;
    }
    else
    {
      add_date_token(date, &token, token_count);
      if (c == '/')
        put_char(local_current->date_sep);
      else if (c == ':')
        put_char(local_current->time_sep);
      else
        put_char(c);
    }
  }

  add_date_token(date, &token, token_count);

  /* on retourne le r�ultat */

  end(str, len_str);
  return FALSE;
}



PUBLIC const char *LOCAL_gettext(const char *msgid)
{
  const char *tr;

  if (local_trans)
    load_translation();

  tr = gettext(msgid);

  /*printf("tr: %s -> %s\n", msgid, tr);*/

  if (tr[0] == '-' && (tr[1] == 0 || (tr[1] == '\n' && tr[2] == 0)))
    return msgid;
  else
    return tr;
}