/* Open and close files for Bison.
- Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,
- 2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 1984, 1986, 1989, 1992, 2000-2012 Free Software
+ Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
- Bison is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- Bison is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with Bison; see the file COPYING. If not, write to the Free
- Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include "system.h"
#include <dirname.h>
#include <get-errno.h>
#include <quote.h>
+#include <quotearg.h>
#include <stdio-safer.h>
#include <xstrndup.h>
#include "getargs.h"
#include "gram.h"
-struct obstack pre_prologue_obstack;
-struct obstack post_prologue_obstack;
-
/* Initializing some values below (such SPEC_NAME_PREFIX to `yy') is
tempting, but don't do that: for the time being our handling of the
%directive vs --option leaves precedence to the options by deciding
char const *spec_outfile = NULL; /* for -o. */
char const *spec_file_prefix = NULL; /* for -b. */
char const *spec_name_prefix = NULL; /* for -p. */
-char const *spec_verbose_file = NULL; /* for --verbose. */
-char const *spec_graph_file = NULL; /* for -g. */
-char const *spec_defines_file = NULL; /* for --defines. */
-char const *parser_file_name;
+char *spec_verbose_file = NULL; /* for --verbose. */
+char *spec_graph_file = NULL; /* for -g. */
+char *spec_xml_file = NULL; /* for -x. */
+char *spec_defines_file = NULL; /* for --defines. */
+char *parser_file_name;
+
+/* All computed output file names. */
+static char **file_names = NULL;
+static int file_names_count = 0;
uniqstr grammar_file = NULL;
uniqstr current_file = NULL;
empty string (meaning the current directory); otherwise it is
`dir/'. */
-static char const *all_but_ext;
-static char const *all_but_tab_ext;
-char const *dir_prefix;
+char *all_but_ext;
+static char *all_but_tab_ext;
+char *dir_prefix;
/* C source file extension (the parser source). */
-static char const *src_extension = NULL;
+static char *src_extension = NULL;
/* Header file extension (if option ``-d'' is specified). */
-static char const *header_extension = NULL;
+static char *header_extension = NULL;
\f
/*-----------------------------------------------------------------.
| Return a newly allocated string composed of the concatenation of |
ptr = fopen_safer (name, mode);
if (!ptr)
- error (EXIT_FAILURE, get_errno (), _("cannot open file `%s'"), name);
+ error (EXIT_FAILURE, get_errno (),
+ _("%s: cannot open"), quotearg_colon (name));
return ptr;
}
return;
if (ferror (ptr))
- error (EXIT_FAILURE, 0, _("I/O error"));
+ error (EXIT_FAILURE, 0, _("input/output error"));
if (fclose (ptr) != 0)
error (EXIT_FAILURE, get_errno (), _("cannot close file"));
}
\f
+FILE *
+xfdopen (int fd, char const *mode)
+{
+ FILE *res = fdopen (fd, mode);
+ if (! res)
+ error (EXIT_FAILURE, get_errno (),
+ // On a separate line to please the "unmarked_diagnostics"
+ // syntax-check.
+ "fdopen");
+ return res;
+}
+
/*------------------------------------------------------------------.
| Compute ALL_BUT_EXT, ALL_BUT_TAB_EXT and output files extensions. |
`------------------------------------------------------------------*/
-/* Replace all characters FROM by TO in the string IN.
- and returns a new allocated string. */
-static char *
-tr (const char *in, char from, char to)
-{
- char *temp;
- char *out = xmalloc (strlen (in) + 1);
-
- for (temp = out; *in; in++, out++)
- if (*in == from)
- *out = to;
- else
- *out = *in;
- *out = 0;
- return (temp);
-}
-
/* Compute extensions from the grammar file extension. */
static void
compute_exts_from_gf (const char *ext)
{
- src_extension = tr (ext, 'y', 'c');
- src_extension = tr (src_extension, 'Y', 'C');
- header_extension = tr (ext, 'y', 'h');
- header_extension = tr (header_extension, 'Y', 'H');
+ if (STREQ (ext, ".y"))
+ {
+ src_extension = xstrdup (language->src_extension);
+ header_extension = xstrdup (language->header_extension);
+ }
+ else
+ {
+ src_extension = xstrdup (ext);
+ header_extension = xstrdup (ext);
+ tr (src_extension, 'y', 'c');
+ tr (src_extension, 'Y', 'C');
+ tr (header_extension, 'y', 'h');
+ tr (header_extension, 'Y', 'H');
+ }
}
/* Compute extensions from the given c source file extension. */
so the extenions must be computed unconditionally from the file name
given by this option. */
src_extension = xstrdup (ext);
- header_extension = tr (ext, 'c', 'h');
- header_extension = tr (header_extension, 'C', 'H');
+ header_extension = xstrdup (ext);
+ tr (header_extension, 'c', 'h');
+ tr (header_extension, 'C', 'H');
}
static void
file_name_split (const char *file_name,
- const char **base, const char **tab, const char **ext)
+ const char **base, const char **tab, const char **ext)
{
*base = last_component (file_name);
if (*ext)
{
size_t baselen = *ext - *base;
- size_t dottablen = 4;
+ size_t dottablen = sizeof (TAB_EXT) - 1;
if (dottablen < baselen
- && (strncmp (*ext - dottablen, ".tab", dottablen) == 0
- || strncmp (*ext - dottablen, "_tab", dottablen) == 0))
- *tab = *ext - dottablen;
+ && STRPREFIX_LIT (TAB_EXT, *ext - dottablen))
+ *tab = *ext - dottablen;
}
}
/* ALL_BUT_EXT goes up the EXT, excluding it. */
all_but_ext =
- xstrndup (spec_outfile,
- (strlen (spec_outfile) - (ext ? strlen (ext) : 0)));
+ xstrndup (spec_outfile,
+ (strlen (spec_outfile) - (ext ? strlen (ext) : 0)));
/* ALL_BUT_TAB_EXT goes up to TAB, excluding it. */
all_but_tab_ext =
- xstrndup (spec_outfile,
- (strlen (spec_outfile)
- - (tab ? strlen (tab) : (ext ? strlen (ext) : 0))));
+ xstrndup (spec_outfile,
+ (strlen (spec_outfile)
+ - (tab ? strlen (tab) : (ext ? strlen (ext) : 0))));
if (ext)
- compute_exts_from_src (ext);
+ compute_exts_from_src (ext);
}
else
{
file_name_split (grammar_file, &base, &tab, &ext);
if (spec_file_prefix)
- {
- /* If --file-prefix=foo was specified, ALL_BUT_TAB_EXT = `foo'. */
- dir_prefix = xstrndup (grammar_file, base - grammar_file);
- all_but_tab_ext = xstrdup (spec_file_prefix);
- }
+ {
+ /* If --file-prefix=foo was specified, ALL_BUT_TAB_EXT = `foo'. */
+ dir_prefix =
+ xstrndup (spec_file_prefix,
+ last_component (spec_file_prefix) - spec_file_prefix);
+ all_but_tab_ext = xstrdup (spec_file_prefix);
+ }
else if (yacc_flag)
- {
- /* If --yacc, then the output is `y.tab.c'. */
- dir_prefix = "";
- all_but_tab_ext = "y";
- }
+ {
+ /* If --yacc, then the output is `y.tab.c'. */
+ dir_prefix = xstrdup ("");
+ all_but_tab_ext = xstrdup ("y");
+ }
else
- {
- /* Otherwise, ALL_BUT_TAB_EXT is computed from the input
- grammar: `foo/bar.yy' => `bar'. */
- dir_prefix = "";
- all_but_tab_ext =
- xstrndup (base, (strlen (base) - (ext ? strlen (ext) : 0)));
- }
-
- all_but_ext = concat2 (all_but_tab_ext, TAB_EXT);
+ {
+ /* Otherwise, ALL_BUT_TAB_EXT is computed from the input
+ grammar: `foo/bar.yy' => `bar'. */
+ dir_prefix = xstrdup ("");
+ all_but_tab_ext =
+ xstrndup (base, (strlen (base) - (ext ? strlen (ext) : 0)));
+ }
+
+ if (language->add_tab)
+ all_but_ext = concat2 (all_but_tab_ext, TAB_EXT);
+ else
+ all_but_ext = xstrdup (all_but_tab_ext);
/* Compute the extensions from the grammar file name. */
if (ext && !yacc_flag)
- compute_exts_from_gf (ext);
+ compute_exts_from_gf (ext);
}
}
void
compute_output_file_names (void)
{
- char const *name[4];
- int i;
- int j;
- int names = 0;
-
compute_file_name_parts ();
/* If not yet done. */
if (!src_extension)
- src_extension = ".c";
+ src_extension = xstrdup (".c");
if (!header_extension)
- header_extension = ".h";
+ header_extension = xstrdup (".h");
- name[names++] = parser_file_name =
- spec_outfile ? spec_outfile : concat2 (all_but_ext, src_extension);
+ parser_file_name =
+ (spec_outfile
+ ? xstrdup (spec_outfile)
+ : concat2 (all_but_ext, src_extension));
if (defines_flag)
{
if (! spec_defines_file)
- spec_defines_file = concat2 (all_but_ext, header_extension);
- name[names++] = spec_defines_file;
+ spec_defines_file = concat2 (all_but_ext, header_extension);
}
if (graph_flag)
{
if (! spec_graph_file)
- spec_graph_file = concat2 (all_but_tab_ext, ".dot");
- name[names++] = spec_graph_file;
+ spec_graph_file = concat2 (all_but_tab_ext, ".dot");
+ output_file_name_check (&spec_graph_file);
+ }
+
+ if (xml_flag)
+ {
+ if (! spec_xml_file)
+ spec_xml_file = concat2 (all_but_tab_ext, ".xml");
+ output_file_name_check (&spec_xml_file);
}
if (report_flag)
{
- spec_verbose_file = concat2 (all_but_tab_ext, OUTPUT_EXT);
- name[names++] = spec_verbose_file;
+ if (!spec_verbose_file)
+ spec_verbose_file = concat2 (all_but_tab_ext, OUTPUT_EXT);
+ output_file_name_check (&spec_verbose_file);
+ }
+
+ free (all_but_tab_ext);
+ free (src_extension);
+ free (header_extension);
+}
+
+void
+output_file_name_check (char **file_name)
+{
+ bool conflict = false;
+ if (STREQ (*file_name, grammar_file))
+ {
+ complain (complaint, _("refusing to overwrite the input file %s"),
+ quote (*file_name));
+ conflict = true;
+ }
+ else
+ {
+ int i;
+ for (i = 0; i < file_names_count; i++)
+ if (STREQ (file_names[i], *file_name))
+ {
+ complain (Wother, _("conflicting outputs to file %s"),
+ quote (*file_name));
+ conflict = true;
+ }
+ }
+ if (conflict)
+ {
+ free (*file_name);
+ *file_name = strdup ("/dev/null");
+ }
+ else
+ {
+ file_names = xnrealloc (file_names, ++file_names_count,
+ sizeof *file_names);
+ file_names[file_names_count-1] = xstrdup (*file_name);
}
+}
- for (j = 0; j < names; j++)
- for (i = 0; i < j; i++)
- if (strcmp (name[i], name[j]) == 0)
- warn (_("conflicting outputs to file %s"), quote (name[i]));
+void
+output_file_names_free (void)
+{
+ free (all_but_ext);
+ free (spec_verbose_file);
+ free (spec_graph_file);
+ free (spec_xml_file);
+ free (spec_defines_file);
+ free (parser_file_name);
+ free (dir_prefix);
+ {
+ int i;
+ for (i = 0; i < file_names_count; i++)
+ free (file_names[i]);
+ }
+ free (file_names);
}
projects / bison.git / blobdiff