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glibc  2.9
Classes | Defines | Functions | Variables
gencat.c File Reference
#include <argp.h>
#include <assert.h>
#include <ctype.h>
#include <endian.h>
#include <errno.h>
#include <error.h>
#include <fcntl.h>
#include <iconv.h>
#include <langinfo.h>
#include <locale.h>
#include <libintl.h>
#include <limits.h>
#include <nl_types.h>
#include <obstack.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <wchar.h>
#include "version.h"
#include "catgetsinfo.h"

Go to the source code of this file.

Classes

struct  message_list
struct  set_list
struct  catalog

Defines

#define SWAPU32(w)   (((w) << 24) | (((w) & 0xff00) << 8) | (((w) >> 8) & 0xff00) | ((w) >> 24))
#define OPT_NEW   1
#define obstack_chunk_alloc   malloc
#define obstack_chunk_free   free

Functions

static void print_version (FILE *stream, struct argp_state *state)
static error_t parse_opt (int key, char *arg, struct argp_state *state)
static char * more_help (int key, const char *text, void *input)
void * xmalloc (size_t n)
void * xcalloc (size_t n, size_t s)
void * xrealloc (void *o, size_t n)
char * xstrdup (const char *)
static void error_print (void)
static struct catalogread_input_file (struct catalog *current, const char *fname)
static void write_out (struct catalog *result, const char *output_name, const char *header_name)
static struct set_listfind_set (struct catalog *current, int number)
static void normalize_line (const char *fname, size_t line, iconv_t cd, wchar_t *string, wchar_t quote_char, wchar_t escape_char)
static void read_old (struct catalog *catalog, const char *file_name)
static int open_conversion (const char *codesetp, iconv_t *cd_towcp, iconv_t *cd_tombp, wchar_t *escape_charp)
int main (int argc, char *argv[])

Variables

static int force_new
static const char * output_name
static const char * header_name
void(* argp_program_version_hook )(FILE *, struct argp_state *) = print_version
static struct argp_option []
static const char doc []
static const char args_doc []
static struct argp

Class Documentation

struct message_list

Definition at line 52 of file gencat.c.

Collaboration diagram for message_list:
Class Members
const char * fname
size_t line
const char * message
struct message_list * next
int number
const char * symbol
struct set_list

Definition at line 65 of file gencat.c.

Collaboration diagram for set_list:
Class Members
int deleted
const char * fname
int last_message
size_t line
struct message_list * messages
struct set_list * next
int number
const char * symbol
struct catalog

Definition at line 80 of file gencat.c.

Collaboration diagram for catalog:
Class Members
struct set_list * all_sets
struct set_list * current_set
int last_set
wint_t quote_char
size_t total_messages

Define Documentation

#define obstack_chunk_free   free
#define OPT_NEW   1

Definition at line 105 of file gencat.c.

#define SWAPU32 (   w)    (((w) << 24) | (((w) & 0xff00) << 8) | (((w) >> 8) & 0xff00) | ((w) >> 24))

Definition at line 49 of file gencat.c.


Function Documentation

static void error_print ( void  ) [static]

Definition at line 258 of file gencat.c.

{
  /* We don't want the program name to be printed in messages.  Emacs'
     compile.el does not like this.  */
}

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static struct set_list * find_set ( struct catalog current,
int  number 
) [static, read]

Definition at line 1083 of file gencat.c.

{
  struct set_list *result = current->all_sets;

  /* We must avoid set number 0 because a set of this number signals
     in the tables that the entry is not occupied.  */
  ++number;

  while (result != NULL)
    if (result->number == number)
      return result;
    else
      result = result->next;

  /* Prepare new message set.  */
  result = (struct set_list *) xcalloc (1, sizeof (*result));
  result->number = number;
  result->next = current->all_sets;
  current->all_sets = result;

  return result;
}

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int main ( int  argc,
char *  argv[] 
)

Definition at line 162 of file gencat.c.

{
  struct catalog *result;
  int remaining;

  /* Set program name for messages.  */
  error_print_progname = error_print;

  /* Set locale via LC_ALL.  */
  setlocale (LC_ALL, "");

  /* Set the text message domain.  */
  textdomain (PACKAGE);

  /* Initialize local variables.  */
  result = NULL;

  /* Parse and process arguments.  */
  argp_parse (&argp, argc, argv, 0, &remaining, NULL);

  /* Determine output file.  */
  if (output_name == NULL)
    output_name = remaining < argc ? argv[remaining++] : "-";

  /* Process all input files.  */
  setlocale (LC_CTYPE, "C");
  if (remaining < argc)
    do
      result = read_input_file (result, argv[remaining]);
    while (++remaining < argc);
  else
    result = read_input_file (NULL, "-");

  /* Write out the result.  */
  if (result != NULL)
    write_out (result, output_name, header_name);

  return error_message_count != 0;
}

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static char * more_help ( int  key,
const char *  text,
void *  input 
) [static]

Definition at line 226 of file gencat.c.

{
  switch (key)
    {
    case ARGP_KEY_HELP_EXTRA:
      /* We print some extra information.  */
      return strdup (gettext ("\
For bug reporting instructions, please see:\n\
<http://www.gnu.org/software/libc/bugs.html>.\n"));
    default:
      break;
    }
  return (char *) text;
}

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static void normalize_line ( const char *  fname,
size_t  line,
iconv_t  cd,
wchar_t *  string,
wchar_t  quote_char,
wchar_t  escape_char 
) [static]

Definition at line 1110 of file gencat.c.

{
  int is_quoted;
  wchar_t *rp = string;
  wchar_t *wp = string;

  if (quote_char != L'\0' && *rp == quote_char)
    {
      is_quoted = 1;
      ++rp;
    }
  else
    is_quoted = 0;

  while (*rp != L'\0')
    if (*rp == quote_char)
      /* We simply end the string when we find the first time an
        not-escaped quote character.  */
       break;
    else if (*rp == escape_char)
      {
       ++rp;
       if (quote_char != L'\0' && *rp == quote_char)
         /* This is an extension to XPG.  */
         *wp++ = *rp++;
       else
         /* Recognize escape sequences.  */
         switch (*rp)
           {
           case L'n':
             *wp++ = L'\n';
             ++rp;
             break;
           case L't':
             *wp++ = L'\t';
             ++rp;
             break;
           case L'v':
             *wp++ = L'\v';
             ++rp;
             break;
           case L'b':
             *wp++ = L'\b';
             ++rp;
             break;
           case L'r':
             *wp++ = L'\r';
             ++rp;
             break;
           case L'f':
             *wp++ = L'\f';
             ++rp;
             break;
           case L'0' ... L'7':
             {
              int number;
              char cbuf[2];
              char *cbufptr;
              size_t cbufin;
              wchar_t wcbuf[2];
              char *wcbufptr;
              size_t wcbufin;

              number = *rp++ - L'0';
              while (number <= (255 / 8) && *rp >= L'0' && *rp <= L'7')
                {
                  number *= 8;
                  number += *rp++ - L'0';
                }

              cbuf[0] = (char) number;
              cbuf[1] = '\0';
              cbufptr = cbuf;
              cbufin = 2;

              wcbufptr = (char *) wcbuf;
              wcbufin = sizeof (wcbuf);

              /* Flush the state.  */
              iconv (cd, NULL, NULL, NULL, NULL);

              iconv (cd, &cbufptr, &cbufin, &wcbufptr, &wcbufin);
              if (cbufptr != &cbuf[2] || (wchar_t *) wcbufptr != &wcbuf[2])
                error_at_line (0, 0, fname, line,
                             gettext ("invalid escape sequence"));
              else
                *wp++ = wcbuf[0];
             }
             break;
           default:
             if (*rp == escape_char)
              {
                *wp++ = escape_char;
                ++rp;
              }
             else
              /* Simply ignore the backslash character.  */;
             break;
           }
      }
    else
      *wp++ = *rp++;

  /* If we saw a quote character at the beginning we expect another
     one at the end.  */
  if (is_quoted && *rp != quote_char)
    error_at_line (0, 0, fname, line, gettext ("unterminated message"));

  /* Terminate string.  */
  *wp = L'\0';
  return;
}

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static int open_conversion ( const char *  codesetp,
iconv_t cd_towcp,
iconv_t cd_tombp,
wchar_t *  escape_charp 
) [static]

Definition at line 1309 of file gencat.c.

{
  char buf[2];
  char *bufptr;
  size_t bufsize;
  wchar_t wbuf[2];
  char *wbufptr;
  size_t wbufsize;

  /* If the input file does not specify the codeset use the locale's.  */
  if (codeset == NULL)
    {
      setlocale (LC_ALL, "");
      codeset = nl_langinfo (CODESET);
      setlocale (LC_ALL, "C");
    }

  /* Get the conversion modules.  */
  *cd_towcp = iconv_open ("WCHAR_T", codeset);
  *cd_tombp = iconv_open (codeset, "WCHAR_T");
  if (*cd_towcp == (iconv_t) -1 || *cd_tombp == (iconv_t) -1)
    {
      error (0, 0, gettext ("conversion modules not available"));
      if (*cd_towcp != (iconv_t) -1)
       iconv_close (*cd_towcp);

      return 1;
    }

  /* One special case for historical reasons is the backslash
     character.  In some codesets the byte value 0x5c is not mapped to
     U005c in Unicode.  These charsets then don't have a backslash
     character at all.  Therefore we have to live with whatever the
     codeset provides and recognize, instead of the U005c, the character
     the byte value 0x5c is mapped to.  */
  buf[0] = '\\';
  buf[1] = '\0';
  bufptr = buf;
  bufsize = 2;

  wbufptr = (char *) wbuf;
  wbufsize = sizeof (wbuf);

  iconv (*cd_towcp, &bufptr, &bufsize, &wbufptr, &wbufsize);
  if (bufsize != 0 || wbufsize != 0)
    {
      /* Something went wrong, we couldn't convert the byte 0x5c.  Go
        on with using U005c.  */
      error (0, 0, gettext ("cannot determine escape character"));
      *escape_charp = L'\\';
    }
  else
    *escape_charp = wbuf[0];

  return 0;
}

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static error_t parse_opt ( int  key,
char *  arg,
struct argp_state state 
) [static]

Definition at line 205 of file gencat.c.

{
  switch (key)
    {
    case 'H':
      header_name = arg;
      break;
    case OPT_NEW:
      force_new = 1;
      break;
    case 'o':
      output_name = arg;
      break;
    default:
      return ARGP_ERR_UNKNOWN;
    }
  return 0;
}
static void print_version ( FILE stream,
struct argp_state state 
) [static]

Definition at line 243 of file gencat.c.

{
  fprintf (stream, "gencat (GNU %s) %s\n", PACKAGE, VERSION);
  fprintf (stream, gettext ("\
Copyright (C) %s Free Software Foundation, Inc.\n\
This is free software; see the source for copying conditions.  There is NO\n\
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
"), "2008");
  fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper");
}

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static struct catalog * read_input_file ( struct catalog current,
const char *  fname 
) [static, read]

Definition at line 266 of file gencat.c.

{
  FILE *fp;
  char *buf;
  size_t len;
  size_t line_number;
  wchar_t *wbuf;
  size_t wbufsize;
  iconv_t cd_towc = (iconv_t) -1;
  iconv_t cd_tomb = (iconv_t) -1;
  wchar_t escape_char = L'\\';
  char *codeset = NULL;

  if (strcmp (fname, "-") == 0 || strcmp (fname, "/dev/stdin") == 0)
    {
      fp = stdin;
      fname = gettext ("*standard input*");
    }
  else
    fp = fopen (fname, "r");
  if (fp == NULL)
    {
      error (0, errno, gettext ("cannot open input file `%s'"), fname);
      return current;
    }

  /* If we haven't seen anything yet, allocate result structure.  */
  if (current == NULL)
    {
      current = (struct catalog *) xcalloc (1, sizeof (*current));

#define obstack_chunk_alloc malloc
#define obstack_chunk_free free
      obstack_init (&current->mem_pool);

      current->current_set = find_set (current, NL_SETD);
    }

  buf = NULL;
  len = 0;
  line_number = 0;

  wbufsize = 1024;
  wbuf = (wchar_t *) xmalloc (wbufsize);

  while (!feof (fp))
    {
      int continued;
      int used;
      size_t start_line = line_number + 1;
      char *this_line;

      do
       {
         int act_len;

         act_len = getline (&buf, &len, fp);
         if (act_len <= 0)
           break;
         ++line_number;

         /* It the line continued?  */
         continued = 0;
         if (buf[act_len - 1] == '\n')
           {
             --act_len;

             /* There might be more than one backslash at the end of
               the line.  Only if there is an odd number of them is
               the line continued.  */
             if (act_len > 0 && buf[act_len - 1] == '\\')
              {
                int temp_act_len = act_len;

                do
                  {
                    --temp_act_len;
                    continued = !continued;
                  }
                while (temp_act_len > 0 && buf[temp_act_len - 1] == '\\');

                if (continued)
                  --act_len;
              }
           }

         /* Append to currently selected line.  */
         obstack_grow (&current->mem_pool, buf, act_len);
       }
      while (continued);

      obstack_1grow (&current->mem_pool, '\0');
      this_line = (char *) obstack_finish (&current->mem_pool);

      used = 0;
      if (this_line[0] == '$')
       {
         if (isblank (this_line[1]))
           {
             int cnt = 1;
             while (isblank (this_line[cnt]))
              ++cnt;
             if (strncmp (&this_line[cnt], "codeset=", 8) != 0)
              /* This is a comment line. Do nothing.  */;
             else if (codeset != NULL)
              /* Ignore multiple codeset. */;
             else
              {
                int start = cnt + 8;
                cnt = start;
                while (this_line[cnt] != '\0' && !isspace (this_line[cnt]))
                  ++cnt;
                if (cnt != start)
                  {
                    int len = cnt - start;
                    codeset = xmalloc (len + 1);
                    *((char *) mempcpy (codeset, &this_line[start], len))
                     = '\0';
                  }
              }
           }
         else if (strncmp (&this_line[1], "set", 3) == 0)
           {
             int cnt = sizeof ("set");
             int set_number;
             const char *symbol = NULL;
             while (isspace (this_line[cnt]))
              ++cnt;

             if (isdigit (this_line[cnt]))
              {
                set_number = atol (&this_line[cnt]);

                /* If the given number for the character set is
                   higher than any we used for symbolic set names
                   avoid clashing by using only higher numbers for
                   the following symbolic definitions.  */
                if (set_number > current->last_set)
                  current->last_set = set_number;
              }
             else
              {
                /* See whether it is a reasonable identifier.  */
                int start = cnt;
                while (isalnum (this_line[cnt]) || this_line[cnt] == '_')
                  ++cnt;

                if (cnt == start)
                  {
                    /* No correct character found.  */
                    error_at_line (0, 0, fname, start_line,
                                 gettext ("illegal set number"));
                    set_number = 0;
                  }
                else
                  {
                    /* We have found seomthing that looks like a
                      correct identifier.  */
                    struct set_list *runp;

                    this_line[cnt] = '\0';
                    used = 1;
                    symbol = &this_line[start];

                    /* Test whether the identifier was already used.  */
                    runp = current->all_sets;
                    while (runp != 0)
                     if (runp->symbol != NULL
                         && strcmp (runp->symbol, symbol) == 0)
                       break;
                     else
                       runp = runp->next;

                    if (runp != NULL)
                     {
                       /* We cannot allow duplicate identifiers for
                          message sets.  */
                       error_at_line (0, 0, fname, start_line,
                                    gettext ("duplicate set definition"));
                       error_at_line (0, 0, runp->fname, runp->line,
                                    gettext ("\
this is the first definition"));
                       set_number = 0;
                     }
                    else
                     /* Allocate next free message set for identifier.  */
                     set_number = ++current->last_set;
                  }
              }

             if (set_number != 0)
              {
                /* We found a legal set number.  */
                current->current_set = find_set (current, set_number);
                if (symbol != NULL)
                    used = 1;
                current->current_set->symbol = symbol;
                current->current_set->fname = fname;
                current->current_set->line = start_line;
              }
           }
         else if (strncmp (&this_line[1], "delset", 6) == 0)
           {
             int cnt = sizeof ("delset");
             size_t set_number;
             while (isspace (this_line[cnt]))
              ++cnt;

             if (isdigit (this_line[cnt]))
              {
                size_t set_number = atol (&this_line[cnt]);
                struct set_list *set;

                /* Mark the message set with the given number as
                   deleted.  */
                set = find_set (current, set_number);
                set->deleted = 1;
              }
             else
              {
                /* See whether it is a reasonable identifier.  */
                int start = cnt;
                while (isalnum (this_line[cnt]) || this_line[cnt] == '_')
                  ++cnt;

                if (cnt == start)
                  {
                    error_at_line (0, 0, fname, start_line,
                                 gettext ("illegal set number"));
                    set_number = 0;
                  }
                else
                  {
                    const char *symbol;
                    struct set_list *runp;

                    this_line[cnt] = '\0';
                    used = 1;
                    symbol = &this_line[start];

                    /* We have a symbolic set name.  This name must
                      appear somewhere else in the catalogs read so
                      far.  */
                    set_number = 0;
                    for (runp = current->all_sets; runp != NULL;
                        runp = runp->next)
                     {
                       if (strcmp (runp->symbol, symbol) == 0)
                         {
                           runp->deleted = 1;
                           break;
                         }
                     }
                    if (runp == NULL)
                     /* Name does not exist before.  */
                     error_at_line (0, 0, fname, start_line,
                                   gettext ("unknown set `%s'"), symbol);
                  }
              }
           }
         else if (strncmp (&this_line[1], "quote", 5) == 0)
           {
             char buf[2];
             char *bufptr;
             size_t buflen;
             char *wbufptr;
             size_t wbuflen;
             int cnt;

             cnt = sizeof ("quote");
             while (isspace (this_line[cnt]))
              ++cnt;

             /* We need the conversion.  */
             if (cd_towc == (iconv_t) -1
                && open_conversion (codeset, &cd_towc, &cd_tomb,
                                  &escape_char) != 0)
              /* Something is wrong.  */
              goto out;

             /* Yes, the quote char can be '\0'; this means no quote
               char.  The function using the information works on
               wide characters so we have to convert it here.  */
             buf[0] = this_line[cnt];
             buf[1] = '\0';
             bufptr = buf;
             buflen = 2;

             wbufptr = (char *) wbuf;
             wbuflen = wbufsize;

             /* Flush the state.  */
             iconv (cd_towc, NULL, NULL, NULL, NULL);

             iconv (cd_towc, &bufptr, &buflen, &wbufptr, &wbuflen);
             if (buflen != 0 || (wchar_t *) wbufptr != &wbuf[2])
              error_at_line (0, 0, fname, start_line,
                            gettext ("invalid quote character"));
             else
              /* Use the converted wide character.  */
              current->quote_char = wbuf[0];
           }
         else
           {
             int cnt;
             cnt = 2;
             while (this_line[cnt] != '\0' && !isspace (this_line[cnt]))
              ++cnt;
             this_line[cnt] = '\0';
             error_at_line (0, 0, fname, start_line,
                          gettext ("unknown directive `%s': line ignored"),
                          &this_line[1]);
           }
       }
      else if (isalnum (this_line[0]) || this_line[0] == '_')
       {
         const char *ident = this_line;
         char *line = this_line;
         int message_number;

         do
           ++line;
         while (line[0] != '\0' && !isspace (line[0]));
         if (line[0] != '\0')
           *line++ = '\0';  /* Terminate the identifier.  */

         /* Now we found the beginning of the message itself.  */

         if (isdigit (ident[0]))
           {
             struct message_list *runp;
             struct message_list *lastp;

             message_number = atoi (ident);

             /* Find location to insert the new message.  */
             runp = current->current_set->messages;
             lastp = NULL;
             while (runp != NULL)
              if (runp->number == message_number)
                break;
              else
                {
                  lastp = runp;
                  runp = runp->next;
                }
             if (runp != NULL)
              {
                /* Oh, oh.  There is already a message with this
                   number in the message set.  */
                if (runp->symbol == NULL)
                  {
                    /* The existing message had its number specified
                      by the user.  Fatal collision type uh, oh.  */
                    error_at_line (0, 0, fname, start_line,
                                 gettext ("duplicated message number"));
                    error_at_line (0, 0, runp->fname, runp->line,
                                 gettext ("this is the first definition"));
                    message_number = 0;
                  }
                else
                  {
                    /* Collision was with number auto-assigned to a
                      symbolic.  Change existing symbolic number
                      and move to end the list (if not already there).  */
                    runp->number = ++current->current_set->last_message;

                    if (runp->next != NULL)
                     {
                       struct message_list *endp;

                       if (lastp == NULL)
                         current->current_set->messages=runp->next;
                       else
                         lastp->next=runp->next;

                       endp = runp->next;
                       while (endp->next != NULL)
                         endp = endp->next;

                       endp->next = runp;
                       runp->next = NULL;
                     }
                  }
              }
             ident = NULL;  /* We don't have a symbol.  */

             if (message_number != 0
                && message_number > current->current_set->last_message)
              current->current_set->last_message = message_number;
           }
         else if (ident[0] != '\0')
           {
             struct message_list *runp;
             struct message_list *lastp;

             /* Test whether the symbolic name was not used for
               another message in this message set.  */
             runp = current->current_set->messages;
             lastp = NULL;
             while (runp != NULL)
              if (runp->symbol != NULL && strcmp (ident, runp->symbol) == 0)
                break;
              else
                runp = runp->next;
             if (runp != NULL)
              {
                /* The name is already used.  */
                error_at_line (0, 0, fname, start_line, gettext ("\
duplicated message identifier"));
                error_at_line (0, 0, runp->fname, runp->line,
                             gettext ("this is the first definition"));
                message_number = 0;
              }
             else
              /* Give the message the next unused number.  */
              message_number = ++current->current_set->last_message;
           }
         else
           message_number = 0;

         if (message_number != 0)
           {
             char *inbuf;
             size_t inlen;
             char *outbuf;
             size_t outlen;
             struct message_list *newp;
             size_t line_len = strlen (line) + 1;
             size_t ident_len = 0;

             /* We need the conversion.  */
             if (cd_towc == (iconv_t) -1
                && open_conversion (codeset, &cd_towc, &cd_tomb,
                                  &escape_char) != 0)
              /* Something is wrong.  */
              goto out;

             /* Convert to a wide character string.  We have to
               interpret escape sequences which will be impossible
               without doing the conversion if the codeset of the
               message is stateful.  */
             while (1)
              {
                inbuf = line;
                inlen = line_len;
                outbuf = (char *) wbuf;
                outlen = wbufsize;

                /* Flush the state.  */
                iconv (cd_towc, NULL, NULL, NULL, NULL);

                iconv (cd_towc, &inbuf, &inlen, &outbuf, &outlen);
                if (inlen == 0)
                  {
                    /* The string is converted.  */
                    assert (outlen < wbufsize);
                    assert (wbuf[(wbufsize - outlen) / sizeof (wchar_t) - 1]
                           == L'\0');
                    break;
                  }

                if (outlen != 0)
                  {
                    /* Something is wrong with this string, we ignore it.  */
                    error_at_line (0, 0, fname, start_line, gettext ("\
invalid character: message ignored"));
                    goto ignore;
                  }

                /* The output buffer is too small.  */
                wbufsize *= 2;
                wbuf = (wchar_t *) xrealloc (wbuf, wbufsize);
              }

             /* Strip quote characters, change escape sequences into
               correct characters etc.  */
             normalize_line (fname, start_line, cd_towc, wbuf,
                           current->quote_char, escape_char);

             if (ident)
              ident_len = line - this_line;

             /* Now the string is free of escape sequences.  Convert it
               back into a multibyte character string.  First free the
               memory allocated for the original string.  */
             obstack_free (&current->mem_pool, this_line);

             used = 1;      /* Yes, we use the line.  */

             /* Now fill in the new string.  It should never happen that
               the replaced string is longer than the original.  */
             inbuf = (char *) wbuf;
             inlen = (wcslen (wbuf) + 1) * sizeof (wchar_t);

             outlen = obstack_room (&current->mem_pool);
             obstack_blank (&current->mem_pool, outlen);
             this_line = (char *) obstack_base (&current->mem_pool);
             outbuf = this_line + ident_len;
             outlen -= ident_len;

             /* Flush the state.  */
             iconv (cd_tomb, NULL, NULL, NULL, NULL);

             iconv (cd_tomb, &inbuf, &inlen, &outbuf, &outlen);
             if (inlen != 0)
              {
                error_at_line (0, 0, fname, start_line,
                             gettext ("invalid line"));
                goto ignore;
              }
             assert (outbuf[-1] == '\0');

             /* Free the memory in the obstack we don't use.  */
             obstack_blank (&current->mem_pool, -(int) outlen);
             line = obstack_finish (&current->mem_pool);

             newp = (struct message_list *) xmalloc (sizeof (*newp));
             newp->number = message_number;
             newp->message = line + ident_len;
             /* Remember symbolic name; is NULL if no is given.  */
             newp->symbol = ident ? line : NULL;
             /* Remember where we found the character.  */
             newp->fname = fname;
             newp->line = start_line;

             /* Find place to insert to message.  We keep them in a
               sorted single linked list.  */
             if (current->current_set->messages == NULL
                || current->current_set->messages->number > message_number)
              {
                newp->next = current->current_set->messages;
                current->current_set->messages = newp;
              }
             else
              {
                struct message_list *runp;
                runp = current->current_set->messages;
                while (runp->next != NULL)
                  if (runp->next->number > message_number)
                    break;
                  else
                    runp = runp->next;
                newp->next = runp->next;
                runp->next = newp;
              }
           }
         ++current->total_messages;
       }
      else
       {
         size_t cnt;

         cnt = 0;
         /* See whether we have any non-white space character in this
            line.  */
         while (this_line[cnt] != '\0' && isspace (this_line[cnt]))
           ++cnt;

         if (this_line[cnt] != '\0')
           /* Yes, some unknown characters found.  */
           error_at_line (0, 0, fname, start_line,
                        gettext ("malformed line ignored"));
       }

    ignore:
      /* We can save the memory for the line if it was not used.  */
      if (!used)
       obstack_free (&current->mem_pool, this_line);
    }

  /* Close the conversion modules.  */
  iconv_close (cd_towc);
  iconv_close (cd_tomb);
  free (codeset);

 out:
  free (wbuf);

  if (fp != stdin)
    fclose (fp);
  return current;
}

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static void read_old ( struct catalog catalog,
const char *  file_name 
) [static]

Definition at line 1226 of file gencat.c.

{
  struct catalog_info old_cat_obj;
  struct set_list *set = NULL;
  int last_set = -1;
  size_t cnt;

  /* Try to open catalog, but don't look through the NLSPATH.  */
  if (__open_catalog (file_name, NULL, NULL, &old_cat_obj) != 0)
    {
      if (errno == ENOENT)
       /* No problem, the catalog simply does not exist.  */
       return;
      else
       error (EXIT_FAILURE, errno,
              gettext ("while opening old catalog file"));
    }

  /* OK, we have the catalog loaded.  Now read all messages and merge
     them.  When set and message number clash for any message the new
     one is used.  If the new one is empty it indicates that the
     message should be deleted.  */
  for (cnt = 0; cnt < old_cat_obj.plane_size * old_cat_obj.plane_depth; ++cnt)
    {
      struct message_list *message, *last;

      if (old_cat_obj.name_ptr[cnt * 3 + 0] == 0)
       /* No message in this slot.  */
       continue;

      if (old_cat_obj.name_ptr[cnt * 3 + 0] - 1 != (uint32_t) last_set)
       {
         last_set = old_cat_obj.name_ptr[cnt * 3 + 0] - 1;
         set = find_set (catalog, old_cat_obj.name_ptr[cnt * 3 + 0] - 1);
       }

      last = NULL;
      message = set->messages;
      while (message != NULL)
       {
         if ((uint32_t) message->number >= old_cat_obj.name_ptr[cnt * 3 + 1])
           break;
         last = message;
         message = message->next;
       }

      if (message == NULL
         || (uint32_t) message->number > old_cat_obj.name_ptr[cnt * 3 + 1])
       {
         /* We have found a message which is not yet in the catalog.
            Insert it at the right position.  */
         struct message_list *newp;

         newp = (struct message_list *) xmalloc (sizeof(*newp));
         newp->number = old_cat_obj.name_ptr[cnt * 3 + 1];
         newp->message =
           &old_cat_obj.strings[old_cat_obj.name_ptr[cnt * 3 + 2]];
         newp->fname = NULL;
         newp->line = 0;
         newp->symbol = NULL;
         newp->next = message;

         if (last == NULL)
           set->messages = newp;
         else
           last->next = newp;

         ++catalog->total_messages;
       }
      else if (*message->message == '\0')
       {
         /* The new empty message has overridden the old one thus
            "deleting" it as required.  Now remove the empty remains. */
         if (last == NULL)
           set->messages = message->next;
         else
           last->next = message->next;
       }
    }
}

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static void write_out ( struct catalog result,
const char *  output_name,
const char *  header_name 
) [static]

Definition at line 852 of file gencat.c.

{
  /* Computing the "optimal" size.  */
  struct set_list *set_run;
  size_t best_total, best_size, best_depth;
  size_t act_size, act_depth;
  struct catalog_obj obj;
  struct obstack string_pool;
  const char *strings;
  size_t strings_size;
  uint32_t *array1, *array2;
  size_t cnt;
  int fd;

  /* If not otherwise told try to read file with existing
     translations.  */
  if (!force_new)
    read_old (catalog, output_name);

  /* Initialize best_size with a very high value.  */
  best_total = best_size = best_depth = UINT_MAX;

  /* We need some start size for testing.  Let's start with
     TOTAL_MESSAGES / 5, which theoretically provides a mean depth of
     5.  */
  act_size = 1 + catalog->total_messages / 5;

  /* We determine the size of a hash table here.  Because the message
     numbers can be chosen arbitrary by the programmer we cannot use
     the simple method of accessing the array using the message
     number.  The algorithm is based on the trivial hash function
     NUMBER % TABLE_SIZE, where collisions are stored in a second
     dimension up to TABLE_DEPTH.  We here compute TABLE_SIZE so that
     the needed space (= TABLE_SIZE * TABLE_DEPTH) is minimal.  */
  while (act_size <= best_total)
    {
      size_t deep[act_size];

      act_depth = 1;
      memset (deep, '\0', act_size * sizeof (size_t));
      set_run = catalog->all_sets;
      while (set_run != NULL)
       {
         struct message_list *message_run;

         message_run = set_run->messages;
         while (message_run != NULL)
           {
             size_t idx = (message_run->number * set_run->number) % act_size;

             ++deep[idx];
             if (deep[idx] > act_depth)
              {
                act_depth = deep[idx];
                if (act_depth * act_size > best_total)
                  break;
              }
             message_run = message_run->next;
           }
         set_run = set_run->next;
       }

      if (act_depth * act_size <= best_total)
       {
         /* We have found a better solution.  */
         best_total = act_depth * act_size;
         best_size = act_size;
         best_depth = act_depth;
       }

      ++act_size;
    }

  /* let's be prepared for an empty message file.  */
  if (best_size == UINT_MAX)
    {
      best_size = 1;
      best_depth = 1;
    }

  /* OK, now we have the size we will use.  Fill in the header, build
     the table and the second one with swapped byte order.  */
  obj.magic = CATGETS_MAGIC;
  obj.plane_size = best_size;
  obj.plane_depth = best_depth;

  /* Allocate room for all needed arrays.  */
  array1 =
    (uint32_t *) alloca (best_size * best_depth * sizeof (uint32_t) * 3);
  memset (array1, '\0', best_size * best_depth * sizeof (uint32_t) * 3);
  array2
    = (uint32_t *) alloca (best_size * best_depth * sizeof (uint32_t) * 3);
  obstack_init (&string_pool);

  set_run = catalog->all_sets;
  while (set_run != NULL)
    {
      struct message_list *message_run;

      message_run = set_run->messages;
      while (message_run != NULL)
       {
         size_t idx = (((message_run->number * set_run->number) % best_size)
                     * 3);
         /* Determine collision depth.  */
         while (array1[idx] != 0)
           idx += best_size * 3;

         /* Store set number, message number and pointer into string
            space, relative to the first string.  */
         array1[idx + 0] = set_run->number;
         array1[idx + 1] = message_run->number;
         array1[idx + 2] = obstack_object_size (&string_pool);

         /* Add current string to the continuous space containing all
            strings.  */
         obstack_grow0 (&string_pool, message_run->message,
                      strlen (message_run->message));

         message_run = message_run->next;
       }

      set_run = set_run->next;
    }
  strings_size = obstack_object_size (&string_pool);
  strings = obstack_finish (&string_pool);

  /* Compute ARRAY2 by changing the byte order.  */
  for (cnt = 0; cnt < best_size * best_depth * 3; ++cnt)
    array2[cnt] = SWAPU32 (array1[cnt]);

  /* Now we can write out the whole data.  */
  if (strcmp (output_name, "-") == 0
      || strcmp (output_name, "/dev/stdout") == 0)
    fd = STDOUT_FILENO;
  else
    {
      fd = creat (output_name, 0666);
      if (fd < 0)
       error (EXIT_FAILURE, errno, gettext ("cannot open output file `%s'"),
              output_name);
    }

  /* Write out header.  */
  write (fd, &obj, sizeof (obj));

  /* We always write out the little endian version of the index
     arrays.  */
#if __BYTE_ORDER == __LITTLE_ENDIAN
  write (fd, array1, best_size * best_depth * sizeof (uint32_t) * 3);
  write (fd, array2, best_size * best_depth * sizeof (uint32_t) * 3);
#elif __BYTE_ORDER == __BIG_ENDIAN
  write (fd, array2, best_size * best_depth * sizeof (uint32_t) * 3);
  write (fd, array1, best_size * best_depth * sizeof (uint32_t) * 3);
#else
# error Cannot handle __BYTE_ORDER byte order
#endif

  /* Finally write the strings.  */
  write (fd, strings, strings_size);

  if (fd != STDOUT_FILENO)
    close (fd);

  /* If requested now write out the header file.  */
  if (header_name != NULL)
    {
      int first = 1;
      FILE *fp;

      /* Open output file.  "-" or "/dev/stdout" means write to
        standard output.  */
      if (strcmp (header_name, "-") == 0
         || strcmp (header_name, "/dev/stdout") == 0)
       fp = stdout;
      else
       {
         fp = fopen (header_name, "w");
         if (fp == NULL)
           error (EXIT_FAILURE, errno,
                 gettext ("cannot open output file `%s'"), header_name);
       }

      /* Iterate over all sets and all messages.  */
      set_run = catalog->all_sets;
      while (set_run != NULL)
       {
         struct message_list *message_run;

         /* If the current message set has a symbolic name write this
            out first.  */
         if (set_run->symbol != NULL)
           fprintf (fp, "%s#define %sSet %#x\t/* %s:%Zu */\n",
                   first ? "" : "\n", set_run->symbol, set_run->number - 1,
                   set_run->fname, set_run->line);
         first = 0;

         message_run = set_run->messages;
         while (message_run != NULL)
           {
             /* If the current message has a symbolic name write
               #define out.  But we have to take care for the set
               not having a symbolic name.  */
             if (message_run->symbol != NULL)
              {
                if (set_run->symbol == NULL)
                  fprintf (fp, "#define AutomaticSet%d%s %#x\t/* %s:%Zu */\n",
                          set_run->number, message_run->symbol,
                          message_run->number, message_run->fname,
                          message_run->line);
                else
                  fprintf (fp, "#define %s%s %#x\t/* %s:%Zu */\n",
                          set_run->symbol, message_run->symbol,
                          message_run->number, message_run->fname,
                          message_run->line);
              }

             message_run = message_run->next;
           }

         set_run = set_run->next;
       }

      if (fp != stdout)
       fclose (fp);
    }
}

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void* xcalloc ( size_t  n,
size_t  s 
)

Definition at line 91 of file xmalloc.c.

{
  VOID *p;

  p = calloc (n, s);
  if (p == 0)
    p = fixup_null_alloc (n);
  return p;
}

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void* xmalloc ( size_t  n)

Definition at line 77 of file xmalloc.c.

{
  VOID *p;

  p = malloc (n);
  if (p == 0)
    p = fixup_null_alloc (n);
  return p;
}
void* xrealloc ( void *  o,
size_t  n 
)

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char* xstrdup ( const char *  )

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Variable Documentation

struct argp [static]
Initial value:

Definition at line 134 of file gencat.c.

struct argp_option[] [static]
Initial value:
{
  { "header", 'H', N_("NAME"), 0,
    N_("Create C header file NAME containing symbol definitions") },
  { "new", OPT_NEW, NULL, 0,
    N_("Do not use existing catalog, force new output file") },
  { "output", 'o', N_("NAME"), 0, N_("Write output to file NAME") },
  { NULL, 0, NULL, 0, NULL }
}

Definition at line 108 of file gencat.c.

Definition at line 103 of file gencat.c.

const char args_doc[] [static]
Initial value:
 N_("\
-o OUTPUT-FILE [INPUT-FILE]...\n[OUTPUT-FILE [INPUT-FILE]...]")

Definition at line 124 of file gencat.c.

const char doc[] [static]
Initial value:
 N_("Generate message catalog.\
\vIf INPUT-FILE is -, input is read from standard input.  If OUTPUT-FILE\n\
is -, output is written to standard output.\n")

Definition at line 119 of file gencat.c.

int force_new [static]

Definition at line 93 of file gencat.c.

const char* header_name [static]

Definition at line 99 of file gencat.c.

const char* output_name [static]

Definition at line 96 of file gencat.c.