-/* Open and close files for bison,
+/* Open and close files for Bison.
+
Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002
Free Software Foundation, Inc.
#include "system.h"
-#include "getargs.h"
+
+#include <error.h>
+#include <get-errno.h>
+
+#include "complain.h"
#include "files.h"
+#include "getargs.h"
#include "gram.h"
-#include "error.h"
-#include "complain.h"
/* From basename.c. Almost a lie, as it returns a char *. */
-const char *base_name PARAMS ((char const *name));
+const char *base_name (char const *name);
FILE *finput = NULL;
char *spec_defines_file = NULL; /* for --defines. */
char *parser_file_name = NULL;
-char *infile = NULL;
+uniqstr grammar_file = NULL;
+uniqstr current_file = NULL;
static char *full_base_name = NULL;
/* Prefix used to generate output file names. */
char *short_base_name = NULL;
-/* Infix used to generate output file names (i.e., `.tab', or `_tab',
- or `'). */
-char *output_infix = NULL;
-
/* C source file extension (the parser source). */
const char *src_extension = NULL;
/* Header file extension (if option ``-d'' is specified). */
const char *header_extension = NULL;
\f
-
-/*--------------------------.
-| Is SUFFIX ending STRING? |
-`--------------------------*/
-
-int
-strsuffix (const char *string, const char *suffix)
-{
- size_t string_len = strlen (string);
- size_t suffix_len = strlen (suffix);
- if (suffix_len <= string_len)
- return !strcmp (string + string_len - suffix_len, suffix);
- else
- return 0;
-}
-
-
/*-----------------------------------------------------------------.
| Return a newly allocated string composed of the concatenation of |
-| STRING1, and STRING2. |
+| STR1, and STR2. |
`-----------------------------------------------------------------*/
-char*
-stringappend (const char *string1, const char *string2)
+static char *
+concat2 (char const *str1, char const *str2)
{
- size_t len = strlen (string1) + strlen (string2);
- char *res = XMALLOC (char, len + 1);
+ size_t len = strlen (str1) + strlen (str2);
+ char *res = xmalloc (len + 1);
char *cp;
- cp = stpcpy (res, string1);
- cp = stpcpy (cp, string2);
+ cp = stpcpy (res, str1);
+ cp = stpcpy (cp, str2);
return res;
}
-
-/*-----------------------------------------------------------------.
-| Computes the macro name used to avoid double inclusion in the |
-| header of the parser and store it in header_macro_name. Be sure |
-| to produce valid CPP names (don't start with digit, remain |
-| alphanumerical + underscore). |
-`-----------------------------------------------------------------*/
-
-char *
-compute_header_macro (void)
-{
- const char *prefix = "BISON_";
- char *macro_name, *cp;
-
- if (spec_defines_file)
- {
- macro_name = XMALLOC (char,
- strlen (prefix) +
- strlen (spec_defines_file) + 1);
- cp = stpcpy (macro_name, prefix);
- cp = stpcpy (cp, spec_defines_file);
- }
- else
- {
- macro_name = XMALLOC (char,
- strlen (prefix) +
- strlen (full_base_name) +
- strlen (header_extension) + 1);
- cp = stpcpy (macro_name, prefix);
- cp = stpcpy (cp, full_base_name);
- cp = stpcpy (cp, header_extension);
- }
-
- for (cp = macro_name; *cp; ++cp)
- if (islower (*cp))
- *cp = toupper (*cp);
- else if (!isalnum (*cp))
- *cp = '_';
-
- return macro_name;
-}
-
-
/*-----------------------------------------------------------------.
| Try to open file NAME with mode MODE, and print an error message |
| if fails. |
ptr = fopen (name, mode);
if (!ptr)
- error (2, errno, _("cannot open file `%s'"), name);
+ error (EXIT_FAILURE, get_errno (), _("cannot open file `%s'"), name);
return ptr;
}
| Try to close file PTR, and print an error message if fails. |
`-------------------------------------------------------------*/
-int
+void
xfclose (FILE *ptr)
{
- int result;
-
if (ptr == NULL)
- return 0;
-
- result = fclose (ptr);
- if (result == EOF)
- error (2, errno, _("cannot close file"));
-
- return result;
-}
-
-
-/*------------------------------------------------------------------.
-| Return the path to the skeleton which locaction might be given in |
-| ENVVAR, otherwise return SKELETON_NAME. |
-`------------------------------------------------------------------*/
-
-const char *
-skeleton_find (const char *envvar, const char *skeleton_name)
-{
- const char *res = getenv (envvar);
-
-#if defined (MSDOS) || defined (_WIN32)
- const char *cp = getenv ("INIT");
- if (!res)
- {
- /* Skeleton file name without path */
- const char *skel_name = strrchr (skeleton_name, '/');
- if (!skel_name)
- skel_name = strrchr (skeleton_name, '\\');
- if (!skel_name)
- skel_name = skeleton_name;
- else
- ++skel_name;
+ return;
- /* File doesn't exist in current directory; try in INIT directory. */
- if (cp)
- {
- res = XMALLOC (char, strlen (cp) + strlen (skel_name) + 2);
- sprintf (res, "%s%c%s", cp, '\\', skel_name);
- }
- else if (access (skel_name, 4) == 0) /* Look in current dir. */
- res = skel_name;
- else
- {
- /* Look in program locations dir. */
- extern char *program_name;
- cp = strrchr(program_name, '\\');
- if (!cp)
- return skeleton_name;
- else
- ++cp;
- res = XMALLOC (char, cp - program_name + strlen (skel_name) + 1);
- strncpy (res, program_name, cp - program_name);
- strcpy (res + (cp - program_name), skel_name);
- }
- }
-#endif /* defined (MSDOS) || defined (_WIN32) */
- if (!res)
- res = skeleton_name;
+ if (ferror (ptr))
+ error (EXIT_FAILURE, 0, _("I/O error"));
- return res;
+ if (fclose (ptr) != 0)
+ error (EXIT_FAILURE, get_errno (), _("cannot close file"));
}
\f
tr (const char *in, char from, char to)
{
char *temp;
- char *out;
-
- out = XMALLOC (char, strlen (in) + 1);
+ char *out = xmalloc (strlen (in) + 1);
for (temp = out; *in; in++, out++)
if (*in == from)
*ext = strrchr (*base, '.');
*tab = NULL;
- /* If there is an exentension, check if there is a `.tab' part right
+ /* If there is an extension, check if there is a `.tab' part right
before. */
- if (*ext
- && (*ext - *base) > (int) strlen (".tab")
- && (!strncmp (*ext - strlen (".tab"), ".tab", strlen (".tab"))
- || !strncmp (*ext - strlen ("_tab"), "_tab", strlen ("_tab"))))
- *tab = *ext - strlen (".tab");
+ if (*ext)
+ {
+ size_t baselen = *ext - *base;
+ size_t dottablen = 4;
+ if (dottablen < baselen
+ && (strncmp (*ext - dottablen, ".tab", dottablen) == 0
+ || strncmp (*ext - dottablen, "_tab", dottablen) == 0))
+ *tab = *ext - dottablen;
+ }
}
(strlen (spec_outfile)
- (tab ? strlen (tab) : (ext ? strlen (ext) : 0))));
- if (tab)
- output_infix = xstrndup (tab,
- (strlen (tab) - (ext ? strlen (ext) : 0)));
-
if (ext)
compute_exts_from_src (ext);
}
{
/* Otherwise, the short base name is computed from the input
grammar: `foo/bar.yy' => `bar'. */
- filename_split (infile, &base, &tab, &ext);
+ filename_split (grammar_file, &base, &tab, &ext);
short_base_name =
xstrndup (base,
(strlen (base) - (ext ? strlen (ext) : 0)));
}
- /* In these cases, always append `.tab'. */
- output_infix = xstrdup (EXT_TAB);
-
- full_base_name = XMALLOC (char,
- strlen (short_base_name)
- + strlen (EXT_TAB) + 1);
- stpcpy (stpcpy (full_base_name, short_base_name), EXT_TAB);
+ full_base_name = xmalloc (strlen (short_base_name)
+ + strlen (TAB_EXT) + 1);
+ stpcpy (stpcpy (full_base_name, short_base_name), TAB_EXT);
/* Computes the extensions from the grammar file name. */
- filename_split (infile, &base, &tab, &ext);
+ filename_split (grammar_file, &base, &tab, &ext);
if (ext && !yacc_flag)
compute_exts_from_gf (ext);
}
header_extension = ".h";
parser_file_name =
- spec_outfile ? spec_outfile : stringappend (full_base_name, src_extension);
+ spec_outfile ? spec_outfile : concat2 (full_base_name, src_extension);
/* It the defines filename if not given, we create it. */
if (!spec_defines_file)
- spec_defines_file = stringappend (full_base_name, header_extension);
+ spec_defines_file = concat2 (full_base_name, header_extension);
/* It the graph filename if not given, we create it. */
if (!spec_graph_file)
- spec_graph_file = stringappend (short_base_name, ".vcg");
+ spec_graph_file = concat2 (short_base_name, ".vcg");
- spec_verbose_file = stringappend (short_base_name, EXT_OUTPUT);
+ spec_verbose_file = concat2 (short_base_name, OUTPUT_EXT);
}
projects / bison.git / blobdiff