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/* open-po - search for .po file along search path list and open for reading
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Copyright (C) 1995-1996, 2000-2003 Free Software Foundation, Inc.
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Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, April 1995.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#define _(str) gettext (str)
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/* This macro is used to determine the number of elements in an erray. */
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#define SIZEOF(a) (sizeof(a)/sizeof(a[0]))
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try_open_po_file (const char *input_name, char **real_file_name_p)
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static const char *extension[] = { "", ".po", ".pot", };
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if (strcmp (input_name, "-") == 0 || strcmp (input_name, "/dev/stdin") == 0)
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*real_file_name_p = xstrdup (_("<stdin>"));
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/* We have a real name for the input file. If the name is absolute,
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try the various extensions, but ignore the directory search list. */
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if (IS_ABSOLUTE_PATH (input_name))
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for (k = 0; k < SIZEOF (extension); ++k)
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file_name = concatenated_pathname ("", input_name, extension[k]);
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ret_val = fopen (file_name, "r");
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if (ret_val != NULL || errno != ENOENT)
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/* We found the file. */
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*real_file_name_p = file_name;
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/* For relative file names, look through the directory search list,
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trying the various extensions. If no directory search list is
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specified, the current directory is used. */
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for (j = 0; (dir = dir_list_nth (j)) != NULL; ++j)
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for (k = 0; k < SIZEOF (extension); ++k)
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file_name = concatenated_pathname (dir, input_name, extension[k]);
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ret_val = fopen (file_name, "r");
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if (ret_val != NULL || errno != ENOENT)
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*real_file_name_p = file_name;
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/* File does not exist. */
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*real_file_name_p = xstrdup (input_name);
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/* Open the input file with the name INPUT_NAME. The ending .po is added
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if necessary. If INPUT_NAME is not an absolute file name and the file is
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not found, the list of directories in "dir-list.h" is searched. The
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file's pathname is returned in *REAL_FILE_NAME_P, for error message
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open_po_file (const char *input_name, char **real_file_name_p,
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FILE *fp = try_open_po_file (input_name, real_file_name_p);
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if (fp == NULL && exit_on_error)
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error (EXIT_FAILURE, errno,
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_("error while opening \"%s\" for reading"), *real_file_name_p);