/* ebrowse.c --- parsing files for the ebrowse C++ browser
- Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+ 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
- This file is part of GNU Emacs.
+This file is part of GNU Emacs.
- GNU Emacs 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.
+GNU Emacs 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.
- GNU Emacs 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.
+GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+You should have received a copy of the GNU General Public License
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
+#include <config.h>
#include <stdio.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
-#ifdef HAVE_STRING_H
#include <string.h>
-#endif
-
#include <ctype.h>
#include <assert.h>
#include "getopt.h"
/* Conditionalize function prototypes. */
-#ifdef PROTOTYPES /* From config.h. */
-#define P_(x) x
-#else
-#define P_(x) ()
-#endif
-
/* Value is non-zero if strings X and Y compare equal. */
#define streq(X, Y) (*(X) == *(Y) && strcmp ((X) + 1, (Y) + 1) == 0)
int vis; /* Visibility (public, ...). */
int flags; /* See F_* above. */
char *regexp; /* Matching regular expression. */
- char *filename; /* Don't free this shared string. */
+ const char *filename; /* Don't free this shared string. */
int pos; /* Buffer position of occurrence. */
char *def_regexp; /* Regular expression matching definition. */
- char *def_filename; /* File name of definition. */
+ const char *def_filename; /* File name of definition. */
int def_pos; /* Buffer position of definition. */
char name[1]; /* Member name. */
};
struct member *types; /* List of local types. */
char *regexp; /* Matching regular expression. */
int pos; /* Buffer position. */
- char *filename; /* File in which it can be found. */
- char *sfilename; /* File in which members can be found. */
+ const char *filename; /* File in which it can be found. */
+ const char *sfilename; /* File in which members can be found. */
struct sym *namesp; /* Namespace in which defined. . */
char name[1]; /* Name of the class. */
};
/* The name of the current input file. */
-char *filename;
+const char *filename;
/* Three character class vectors, and macros to test membership
of characters. */
struct kw
{
- char *name; /* Spelling. */
+ const char *name; /* Spelling. */
int tk; /* Token value. */
struct kw *next; /* Next in collision chain. */
};
/* Function prototypes. */
-int yylex P_ ((void));
-void yyparse P_ ((void));
-void re_init_parser P_ ((void));
-char *token_string P_ ((int));
-char *matching_regexp P_ ((void));
-void init_sym P_ ((void));
-struct sym *add_sym P_ ((char *, struct sym *));
-void add_link P_ ((struct sym *, struct sym *));
-void add_member_defn P_ ((struct sym *, char *, char *,
- int, unsigned, int, int, int));
-void add_member_decl P_ ((struct sym *, char *, char *, int,
- unsigned, int, int, int, int));
-void dump_roots P_ ((FILE *));
-void *xmalloc P_ ((int));
-void xfree P_ ((void *));
-void add_global_defn P_ ((char *, char *, int, unsigned, int, int, int));
-void add_global_decl P_ ((char *, char *, int, unsigned, int, int, int));
-void add_define P_ ((char *, char *, int));
-void mark_inherited_virtual P_ ((void));
-void leave_namespace P_ ((void));
-void enter_namespace P_ ((char *));
-void register_namespace_alias P_ ((char *, struct link *));
-void insert_keyword P_ ((char *, int));
-void re_init_scanner P_ ((void));
-void init_scanner P_ ((void));
-void usage P_ ((int));
-void version P_ ((void));
-void process_file P_ ((char *));
-void add_search_path P_ ((char *));
-FILE *open_file P_ ((char *));
-int process_pp_line P_ ((void));
-int dump_members P_ ((FILE *, struct member *));
-void dump_sym P_ ((FILE *, struct sym *));
-int dump_tree P_ ((FILE *, struct sym *));
-struct member *find_member P_ ((struct sym *, char *, int, int, unsigned));
-struct member *add_member P_ ((struct sym *, char *, int, int, unsigned));
-void mark_virtual P_ ((struct sym *));
-void mark_virtual P_ ((struct sym *));
-struct sym *make_namespace P_ ((char *, struct sym *));
-char *sym_scope P_ ((struct sym *));
-char *sym_scope_1 P_ ((struct sym *));
-int skip_to P_ ((int));
-void skip_matching P_ ((void));
-void member P_ ((struct sym *, int));
-void class_body P_ ((struct sym *, int));
-void class_definition P_ ((struct sym *, int, int, int));
-void declaration P_ ((int));
-unsigned parm_list P_ ((int *));
-char *operator_name P_ ((int *));
-struct sym *parse_classname P_ ((void));
-struct sym *parse_qualified_ident_or_type P_ ((char **));
-void parse_qualified_param_ident_or_type P_ ((char **));
-int globals P_ ((int));
-void yyerror P_ ((char *, char *));
-void usage P_ ((int)) NO_RETURN;
-void version P_ (()) NO_RETURN;
+int yylex (void);
+void yyparse (void);
+void re_init_parser (void);
+const char *token_string (int);
+char *matching_regexp (void);
+void init_sym (void);
+struct sym *add_sym (const char *, struct sym *);
+void add_link (struct sym *, struct sym *);
+void add_member_defn (struct sym *, char *, char *,
+ int, unsigned, int, int, int);
+void add_member_decl (struct sym *, char *, char *, int,
+ unsigned, int, int, int, int);
+void dump_roots (FILE *);
+void *xmalloc (int);
+void xfree (void *);
+void add_global_defn (char *, char *, int, unsigned, int, int, int);
+void add_global_decl (char *, char *, int, unsigned, int, int, int);
+void add_define (char *, char *, int);
+void mark_inherited_virtual (void);
+void leave_namespace (void);
+void enter_namespace (char *);
+void register_namespace_alias (char *, struct link *);
+void insert_keyword (const char *, int);
+void re_init_scanner (void);
+void init_scanner (void);
+void process_file (char *);
+void add_search_path (char *);
+FILE *open_file (char *);
+int process_pp_line (void);
+int dump_members (FILE *, struct member *);
+void dump_sym (FILE *, struct sym *);
+int dump_tree (FILE *, struct sym *);
+struct member *find_member (struct sym *, char *, int, int, unsigned);
+struct member *add_member (struct sym *, char *, int, int, unsigned);
+void mark_virtual (struct sym *);
+struct sym *make_namespace (char *, struct sym *);
+char *sym_scope (struct sym *);
+char *sym_scope_1 (struct sym *);
+int skip_to (int);
+void skip_matching (void);
+void member (struct sym *, int);
+void class_body (struct sym *, int);
+void class_definition (struct sym *, int, int, int);
+void declaration (int);
+unsigned parm_list (int *);
+char *operator_name (int *);
+struct sym *parse_classname (void);
+struct sym *parse_qualified_ident_or_type (char **);
+void parse_qualified_param_ident_or_type (char **);
+int globals (int);
+void yyerror (const char *, const char *);
+void usage (int) NO_RETURN;
+void version (void) NO_RETURN;
\f
name and line number. */
void
-yyerror (format, s)
- char *format, *s;
+yyerror (const char *format, const char *s)
{
fprintf (stderr, "%s:%d: ", filename, yyline);
fprintf (stderr, format, s);
available. */
void *
-xmalloc (nbytes)
- int nbytes;
+xmalloc (int nbytes)
{
void *p = malloc (nbytes);
if (p == NULL)
/* Like realloc but print an error and exit if out of memory. */
void *
-xrealloc (p, sz)
- void *p;
- int sz;
+xrealloc (void *p, int sz)
{
p = realloc (p, sz);
if (p == NULL)
}
-/* Like free but always check for null pointers.. */
-
-void
-xfree (p)
- void *p;
-{
- if (p)
- free (p);
-}
-
-
/* Like strdup, but print an error and exit if not enough memory is
available.. If S is null, return null. */
char *
-xstrdup (s)
- char *s;
+xstrdup (char *s)
{
if (s)
s = strcpy (xmalloc (strlen (s) + 1), s);
special symbol for globals (`*Globals*'). */
void
-init_sym ()
+init_sym (void)
{
global_symbols = add_sym (GLOBALS_NAME, NULL);
}
create a new symbol and set it to default values. */
struct sym *
-add_sym (name, nested_in_class)
- char *name;
- struct sym *nested_in_class;
+add_sym (const char *name, struct sym *nested_in_class)
{
struct sym *sym;
unsigned h;
- char *s;
+ const char *s;
struct sym *scope = nested_in_class ? nested_in_class : current_namespace;
for (s = name, h = 0; *s; ++s)
}
sym = (struct sym *) xmalloc (sizeof *sym + strlen (name));
- bzero (sym, sizeof *sym);
+ memset (sym, 0, sizeof *sym);
strcpy (sym->name, name);
sym->namesp = scope;
sym->next = class_table[h];
/* Add links between superclass SUPER and subclass SUB. */
void
-add_link (super, sub)
- struct sym *super, *sub;
+add_link (struct sym *super, struct sym *sub)
{
struct link *lnk, *lnk2, *p, *prev;
found or null if not found. */
struct member *
-find_member (cls, name, var, sc, hash)
- struct sym *cls;
- char *name;
- int var, sc;
- unsigned hash;
+find_member (struct sym *cls, char *name, int var, int sc, unsigned int hash)
{
struct member **list;
struct member *p;
F_* defines). */
void
-add_member_decl (cls, name, regexp, pos, hash, var, sc, vis, flags)
- struct sym *cls;
- char *name;
- char *regexp;
- int pos;
- unsigned hash;
- int var;
- int sc;
- int vis;
- int flags;
+add_member_decl (struct sym *cls, char *name, char *regexp, int pos, unsigned int hash, int var, int sc, int vis, int flags)
{
struct member *m;
F_* defines). */
void
-add_member_defn (cls, name, regexp, pos, hash, var, sc, flags)
- struct sym *cls;
- char *name;
- char *regexp;
- int pos;
- unsigned hash;
- int var;
- int sc;
- int flags;
+add_member_defn (struct sym *cls, char *name, char *regexp, int pos, unsigned int hash, int var, int sc, int flags)
{
struct member *m;
if it is non-null. POS is the position in the file. */
void
-add_define (name, regexp, pos)
- char *name, *regexp;
- int pos;
+add_define (char *name, char *regexp, int pos)
{
add_global_defn (name, regexp, pos, 0, 1, SC_FRIEND, F_DEFINE);
add_global_decl (name, regexp, pos, 0, 1, SC_FRIEND, F_DEFINE);
F_* defines). */
void
-add_global_defn (name, regexp, pos, hash, var, sc, flags)
- char *name, *regexp;
- int pos;
- unsigned hash;
- int var;
- int sc;
- int flags;
+add_global_defn (char *name, char *regexp, int pos, unsigned int hash, int var, int sc, int flags)
{
int i;
struct sym *sym;
F_* defines). */
void
-add_global_decl (name, regexp, pos, hash, var, sc, flags)
- char *name, *regexp;
- int pos;
- unsigned hash;
- int var;
- int sc;
- int flags;
+add_global_decl (char *name, char *regexp, int pos, unsigned int hash, int var, int sc, int flags)
{
/* Add declaration only if not already declared. Header files must
be processed before source files for this to have the right effect.
Value is a pointer to the member's structure. */
struct member *
-add_member (cls, name, var, sc, hash)
- struct sym *cls;
- char *name;
- int var;
- int sc;
- unsigned hash;
+add_member (struct sym *cls, char *name, int var, int sc, unsigned int hash)
{
struct member *m = (struct member *) xmalloc (sizeof *m + strlen (name));
struct member **list;
in base classes. */
void
-mark_virtual (r)
- struct sym *r;
+mark_virtual (struct sym *r)
{
struct link *p;
struct member *m, *m2;
are virtual because of a virtual declaration in a base class. */
void
-mark_inherited_virtual ()
+mark_inherited_virtual (void)
{
struct sym *r;
int i;
/* Create and return a symbol for a namespace with name NAME. */
struct sym *
-make_namespace (name, context)
- char *name;
- struct sym *context;
+make_namespace (char *name, struct sym *context)
{
struct sym *s = (struct sym *) xmalloc (sizeof *s + strlen (name));
- bzero (s, sizeof *s);
+ memset (s, 0, sizeof *s);
strcpy (s->name, name);
s->next = all_namespaces;
s->namesp = context;
/* Find the symbol for namespace NAME. If not found, retrun NULL */
struct sym *
-check_namespace (name, context)
- char *name;
- struct sym *context;
+check_namespace (char *name, struct sym *context)
{
struct sym *p = NULL;
{
if (streq (p->name, name) && (p->namesp == context))
break;
- }
+ }
return p;
- }
+}
/* Find the symbol for namespace NAME. If not found, add a new symbol
for NAME to all_namespaces. */
struct sym *
-find_namespace (name, context)
- char *name;
- struct sym *context;
+find_namespace (char *name, struct sym *context)
{
struct sym *p = check_namespace (name, context);
/* Find namespace alias with name NAME. If not found return NULL. */
struct link *
-check_namespace_alias (name)
- char *name;
+check_namespace_alias (char *name)
{
struct link *p = NULL;
struct alias *al;
/* Register the name NEW_NAME as an alias for namespace list OLD_NAME. */
void
-register_namespace_alias (new_name, old_name)
- char *new_name;
- struct link *old_name;
+register_namespace_alias (char *new_name, struct link *old_name)
{
unsigned h;
char *s;
/* Enter namespace with name NAME. */
void
-enter_namespace (name)
- char *name;
+enter_namespace (char *name)
{
struct sym *p = find_namespace (name, current_namespace);
/* Leave the current namespace. */
void
-leave_namespace ()
+leave_namespace (void)
{
assert (namespace_sp > 0);
current_namespace = namespace_stack[--namespace_sp];
/* Make sure scope_buffer has enough room to add LEN chars to it. */
void
-ensure_scope_buffer_room (len)
- int len;
+ensure_scope_buffer_room (int len)
{
if (scope_buffer_len + len >= scope_buffer_size)
{
scope name constructed. */
char *
-sym_scope_1 (p)
- struct sym *p;
+sym_scope_1 (struct sym *p)
{
int len;
as it would appear in a C*+ source file. */
char *
-sym_scope (p)
- struct sym *p;
+sym_scope (struct sym *p)
{
if (!scope_buffer)
{
list. */
int
-dump_members (fp, m)
- FILE *fp;
- struct member *m;
+dump_members (FILE *fp, struct member *m)
{
int n;
/* Dump class ROOT to stream FP. */
void
-dump_sym (fp, root)
- FILE *fp;
- struct sym *root;
+dump_sym (FILE *fp, struct sym *root)
{
fputs (CLASS_STRUCT, fp);
PUTSTR (root->name, fp);
number of classes written. */
int
-dump_tree (fp, root)
- FILE *fp;
- struct sym *root;
+dump_tree (FILE *fp, struct sym *root)
{
struct link *lk;
unsigned n = 0;
/* Dump the entire class tree to file FP. */
void
-dump_roots (fp)
- FILE *fp;
+dump_roots (FILE *fp)
{
int i, n = 0;
struct sym *r;
input buffer not consumed. */
int
-process_pp_line ()
+process_pp_line (void)
{
int in_comment = 0, in_string = 0;
int c;
/* Value is the next token from the input buffer. */
int
-yylex ()
+yylex (void)
{
int c;
char end_char;
case '/':
while (GET (c) && c != '\n')
;
+ /* Don't try to read past the end of the input buffer if
+ the file ends in a C++ comment without a newline. */
+ if (c == 0)
+ return YYEOF;
+
INCREMENT_LINENO;
break;
shorter than min_regexp. */
char *
-matching_regexp ()
+matching_regexp (void)
{
char *p;
char *s;
while (in - p < min_regexp && p > inbuffer)
{
/* Line probably not significant enough */
- for (--p; p >= inbuffer && *p != '\n'; --p)
+ for (--p; p > inbuffer && *p != '\n'; --p)
;
}
if (*p == '\n')
/* Return a printable representation of token T. */
-char *
-token_string (t)
- int t;
+const char *
+token_string (int t)
{
static char b[3];
/* Reinitialize the scanner for a new input file. */
void
-re_init_scanner ()
+re_init_scanner (void)
{
in = inbuffer;
yyline = 1;
table. */
void
-insert_keyword (name, tk)
- char *name;
- int tk;
+insert_keyword (const char *name, int tk)
{
- char *s;
+ const char *s;
unsigned h = 0;
struct kw *k = (struct kw *) xmalloc (sizeof *k);
character class vectors and fills the keyword hash table. */
void
-init_scanner ()
+init_scanner (void)
{
int i;
the current lookahead token after skipping. */
int
-skip_to (token)
- int token;
+skip_to (int token)
{
while (!LOOKING_AT2 (YYEOF, token))
MATCH ();
angle brackets, curly brackets) matching the current lookahead. */
void
-skip_matching ()
+skip_matching (void)
{
int open, close, n;
}
void
-skip_initializer ()
+skip_initializer (void)
{
for (;;)
{
/* Build qualified namespace alias (A::B::c) and return it. */
struct link *
-match_qualified_namespace_alias ()
+match_qualified_namespace_alias (void)
{
struct link *head = NULL;
struct link *cur = NULL;
{
case IDENT:
tmp = (struct link *) xmalloc (sizeof *cur);
- tmp->sym = find_namespace (yytext, cur);
+ tmp->sym = find_namespace (yytext, cur ? cur->sym : NULL);
tmp->next = NULL;
if (head)
{
/* Re-initialize the parser by resetting the lookahead token. */
void
-re_init_parser ()
+re_init_parser (void)
{
tk = -1;
}
distinguish between overloaded functions. */
unsigned
-parm_list (flags)
- int *flags;
+parm_list (int *flags)
{
unsigned hash = 0;
int type_seen = 0;
/* Print position info to stdout. */
void
-print_info ()
+print_info (void)
{
if (info_position >= 0 && BUFFER_POS () <= info_position)
if (info_cls)
public). */
void
-member (cls, vis)
- struct sym *cls;
- int vis;
+member (struct sym *cls, int vis)
{
char *id = NULL;
int sc = SC_MEMBER;
if (LOOKING_AT ('{') && id && cls)
add_member_defn (cls, id, regexp, pos, hash, 0, sc, flags);
- xfree (id);
+ free (id);
id = NULL;
sc = SC_MEMBER;
break;
print_info ();
}
- xfree (id);
+ free (id);
}
union, class). */
void
-class_body (cls, tag)
- struct sym *cls;
- int tag;
+class_body (struct sym *cls, int tag)
{
int vis = tag == CLASS ? PRIVATE : PUBLIC;
int temp;
symbol for that class. */
struct sym *
-parse_classname ()
+parse_classname (void)
{
struct sym *last_class = NULL;
a static buffer holding the constructed operator name string. */
char *
-operator_name (sc)
- int *sc;
+operator_name (int *sc)
{
static int id_size = 0;
static char *id = NULL;
- char *s;
+ const char *s;
int len;
MATCH ();
symbol structure for the ident. */
struct sym *
-parse_qualified_ident_or_type (last_id)
- char **last_id;
+parse_qualified_ident_or_type (char **last_id)
{
struct sym *cls = NULL;
char *id = NULL;
cls = add_sym (id, cls);
*last_id = NULL;
- xfree (id);
+ free (id);
id = NULL;
id_size = 0;
MATCH ();
symbol structure for the ident. */
void
-parse_qualified_param_ident_or_type (last_id)
- char **last_id;
+parse_qualified_param_ident_or_type (char **last_id)
{
struct sym *cls = NULL;
static char *id = NULL;
Current lookahead is the class name. */
void
-class_definition (containing, tag, flags, nested)
- struct sym *containing;
- int tag;
- int flags;
- int nested;
+class_definition (struct sym *containing, int tag, int flags, int nested)
{
struct sym *current;
struct sym *base_class;
information about the member (see the F_* defines). */
void
-add_declarator (cls, id, flags, sc)
- struct sym **cls;
- char **id;
- int flags, sc;
+add_declarator (struct sym **cls, char **id, int flags, int sc)
{
if (LOOKING_AT2 (';', ','))
{
print_info ();
}
- xfree (*id);
+ free (*id);
*id = NULL;
*cls = NULL;
}
/* Parse a declaration. */
void
-declaration (flags)
- int flags;
+declaration (int flags)
{
char *id = NULL;
struct sym *cls = NULL;
`declare (X, Y)\n class A : ...'. */
if (id)
{
- xfree (id);
+ free (id);
return;
}
if (!cls && id && LOOKING_AT ('{'))
add_global_defn (id, regexp, pos, hash, 0, sc, flags);
- xfree (id);
+ free (id);
id = NULL;
break;
}
otherwise. */
int
-globals (start_flags)
- int start_flags;
+globals (int start_flags)
{
int anonymous;
int class_tk;
MATCH_IF ('}');
}
- xfree (namespace_name);
+ free (namespace_name);
}
}
break;
/* Parse the current input file. */
void
-yyparse ()
+yyparse (void)
{
while (globals (0) == 0)
MATCH_IF ('}');
input files. */
void
-add_search_path (path_list)
- char *path_list;
+add_search_path (char *path_list)
{
while (*path_list)
{
unchanged file name. */
FILE *
-open_file (file)
- char *file;
+open_file (char *file)
{
FILE *fp = NULL;
static char *buffer;
"
void
-usage (error)
- int error;
+usage (int error)
{
puts (USAGE);
exit (error ? EXIT_FAILURE : EXIT_SUCCESS);
#endif
void
-version ()
+version (void)
{
+ /* Makes it easier to update automatically. */
+ char emacs_copyright[] = "Copyright (C) 2010 Free Software Foundation, Inc.";
+
printf ("ebrowse %s\n", VERSION);
- puts ("Copyright (C) 1992-2007 Free Software Foundation, Inc.");
+ puts (emacs_copyright);
puts ("This program is distributed under the same terms as Emacs.");
exit (EXIT_SUCCESS);
}
table. */
void
-process_file (file)
- char *file;
+process_file (char *file)
{
FILE *fp;
is null when EOF is reached. */
char *
-read_line (fp)
- FILE *fp;
+read_line (FILE *fp)
{
static char *buffer;
static int buffer_size;
/* Main entry point. */
int
-main (argc, argv)
- int argc;
- char **argv;
+main (int argc, char **argv)
{
int i;
int any_inputfiles = 0;
- static char *out_filename = DEFAULT_OUTFILE;
+ static const char *out_filename = DEFAULT_OUTFILE;
static char **input_filenames = NULL;
static int input_filenames_size = 0;
static int n_input_files;
HCoop / bpt / emacs.git / blobdiff