#include "system.h"
#include "getargs.h"
#include "files.h"
-#include "xalloc.h"
#include "gram.h"
+#include "error.h"
#include "complain.h"
FILE *finput = NULL;
struct obstack action_obstack;
struct obstack attrs_obstack;
-struct obstack table_obstack;
-struct obstack defines_obstack;
struct obstack guard_obstack;
struct obstack output_obstack;
-struct obstack graph_obstack;
char *spec_outfile = NULL; /* for -o. */
char *spec_file_prefix = NULL; /* for -b. */
-char *spec_name_prefix = NULL; /* for -p. */
+const char *spec_name_prefix = "yy"; /* for -p. */
+char *spec_verbose_file = NULL; /* for --verbose. */
+char *spec_graph_file = NULL; /* for -g. */
+char *spec_defines_file = NULL; /* for --defines. */
+char *parser_file_name = NULL;
char *infile = NULL;
char *attrsfile = NULL;
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 (base_name) +
+ strlen (header_extension) + 1);
+ cp = stpcpy (macro_name, prefix);
+ cp = stpcpy (cp, 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. |
xfclose (out);
}
-
/*------------------------------------------------------------------.
| Return the path to the skeleton which locaction might be given in |
| ENVVAR, otherwise return SKELETON_NAME. |
{
const char *res = getenv (envvar);
-#ifdef MSDOS
- const char *cp;
-
- /* File doesn't exist in current directory; try in INIT directory. */
- if (!res && (cp = getenv ("INIT")))
+#if defined (MSDOS) || defined (_WIN32)
+ if (!res)
{
- res = XMALLOC (char, strlen (cp) + strlen (skeleton_name) + 2);
- sprintf (res, "%s%c%s", cp, '/', skeleton_name);
+ /* 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;
+
+ /* File doesn't exist in current directory; try in INIT directory. */
+ const char *cp = getenv ("INIT");
+ 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 /* !MSDOS */
-
+#endif /* defined (MSDOS) || defined (_WIN32) */
if (!res)
res = skeleton_name;
static void
compute_exts_from_gf (const char *ext)
{
- /* Checks if SRC_EXTENSION is NULL. In the other case, %source_extension
- was specified in the grammar file. */
- if (src_extension == NULL)
- {
- src_extension = tr (ext, 'y', 'c');
- src_extension = tr (src_extension, 'Y', 'C');
- }
- /* Checks if HEADER_EXTENSION is NULL. In the other case,
- %header_extension was specified in the grammar file. */
- if (header_extension == NULL)
- {
- header_extension = tr (ext, 'y', 'h');
- header_extension = tr (header_extension, 'Y', 'H');
- }
+ 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');
}
/* Computes extensions from the given c source file extension. */
}
}
+/*-------------------------------------------------------.
+| Close the open files, compute the output files names. |
+`-------------------------------------------------------*/
+
+void
+compute_output_file_names (void)
+{
+ compute_base_names ();
+
+ parser_file_name =
+ spec_outfile ? spec_outfile : stringappend (base_name, src_extension);
+
+ /* If not yet done. */
+ if (!src_extension)
+ src_extension = ".c";
+ if (!header_extension)
+ header_extension = ".h";
+
+ /* It the defines filename if not given, we create it. */
+ if (!spec_defines_file)
+ spec_defines_file = stringappend (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_verbose_file = stringappend (short_base_name, EXT_OUTPUT);
+
+ attrsfile = stringappend (short_base_name, EXT_STYPE_H);
+#ifndef MSDOS
+ attrsfile = stringappend (attrsfile, header_extension);
+#endif /* MSDOS */
+}
+
/*-----------------------------------------------------------------.
| Open the input file. Look for the skeletons. Find the names of |
| the output files. Prepare the obstacks. |
/* Initialize the obstacks. */
obstack_init (&action_obstack);
obstack_init (&attrs_obstack);
- obstack_init (&table_obstack);
- obstack_init (&defines_obstack);
obstack_init (&guard_obstack);
obstack_init (&output_obstack);
- obstack_init (&graph_obstack);
}
-/*-----------------------------------------------------.
-| Close the open files, produce all the output files. |
-`-----------------------------------------------------*/
+/*-----------------------.
+| Close the open file.. |
+`-----------------------*/
void
-output_files (void)
+close_files (void)
{
xfclose (finput);
+}
- compute_base_names ();
-
- /* Set default extensions */
- if (!src_extension)
- src_extension = ".c";
- if (!header_extension)
- header_extension = ".h";
-
- attrsfile = stringappend (short_base_name, EXT_STYPE_H);
-#ifndef MSDOS
- stringappend (attrsfile, header_extension);
-#endif /* MSDOS */
-
- /* Output the main file. */
- if (spec_outfile)
- obstack_save (&table_obstack, spec_outfile);
- else
- obstack_save (&table_obstack, stringappend (base_name, src_extension));
+/*---------------------------.
+| Produce the output files. |
+`---------------------------*/
- /* Output the header file if wanted. */
- if (defines_flag)
- obstack_save (&defines_obstack,
- stringappend (base_name, header_extension));
+void
+output_files (void)
+{
+#if 0
+ /* Seems to be invalid now --akim. */
/* If we output only the table, dump the actions in ACTFILE. */
if (no_parser_flag)
obstack_save (&action_obstack, stringappend (short_base_name, ".act"));
+ obstack_free (&action_obstack, NULL);
+#endif
/* If we produced a semantic parser ATTRS_OBSTACK must be dumped
into its own file, ATTTRSFILE. */
obstack_save (&guard_obstack, temp_name);
}
- if (verbose_flag)
- /* We used to use just .out if spec_name_prefix (-p) was used, but
- that conflicts with Posix. */
- obstack_save (&output_obstack,
- stringappend (short_base_name, EXT_OUTPUT));
-
- if (graph_flag)
- obstack_save (&graph_obstack, stringappend (short_base_name, ".vcg"));
+ obstack_free (&guard_obstack, NULL);
+ obstack_free (&attrs_obstack, NULL);
}
projects / bison.git / blobdiff