* 2002 #line directives by Francesco Potortì.
*
* Francesco Potortì <pot@gnu.org> has maintained and improved it since 1993.
- *
*/
-char pot_etags_version[] = "@(#) pot revision number is 16.58";
+/*
+ * If you want to add support for a new language, start by looking at the LUA
+ * language, which is the simplest. Alternatively, consider shipping a
+ * configuration file containing regexp definitions for etags.
+ */
+
+char pot_etags_version[] = "@(#) pot revision number is 17.4";
#define TRUE 1
#define FALSE 0
# ifndef __P /* for Xemacs */
# define __P(args) args
# endif
-#else
+#else /* no config.h */
# if defined(__STDC__) && (__STDC__ || defined(__SUNPRO_C))
# define __P(args) args /* use prototypes */
# define PTR void * /* for generic pointers */
-# else
+# else /* not standard C */
# define __P(args) () /* no prototypes */
# define const /* remove const for old compilers' sake */
# define PTR long * /* don't use void* */
# ifndef HAVE_GETCWD
# define HAVE_GETCWD
# endif /* undef HAVE_GETCWD */
-#else /* !WINDOWSNT */
+#else /* not WINDOWSNT */
# ifdef STDC_HEADERS
# include <stdlib.h>
# include <string.h>
-# else
+# else /* no standard C headers */
extern char *getenv ();
+# ifdef VMS
+# define EXIT_SUCCESS 1
+# define EXIT_FAILURE 0
+# else /* no VMS */
+# define EXIT_SUCCESS 0
+# define EXIT_FAILURE 1
+# endif
# endif
#endif /* !WINDOWSNT */
static void Fortran_functions __P((FILE *));
static void HTML_labels __P((FILE *));
static void Lisp_functions __P((FILE *));
+static void Lua_functions __P((FILE *));
static void Makefile_targets __P((FILE *));
static void Pascal_functions __P((FILE *));
static void Perl_functions __P((FILE *));
argument of any expression that starts with `(def' in column zero\n\
is a tag.";
+static char *Lua_suffixes [] =
+ { "lua", "LUA", NULL };
+static char Lua_help [] =
+"In Lua scripts, all functions are tags.";
+
static char *Makefile_filenames [] =
{ "Makefile", "makefile", "GNUMakefile", "Makefile.in", "Makefile.am", NULL};
static char Makefile_help [] =
{ "html", HTML_help, HTML_labels, HTML_suffixes },
{ "java", Cjava_help, Cjava_entries, Cjava_suffixes },
{ "lisp", Lisp_help, Lisp_functions, Lisp_suffixes },
+ { "lua", Lua_help, Lua_functions, Lua_suffixes },
{ "makefile", Makefile_help,Makefile_targets,NULL,Makefile_filenames},
{ "objc", Objc_help, plain_C_entries, Objc_suffixes },
{ "pascal", Pascal_help, Pascal_functions, Pascal_suffixes },
st_none,
st_C_objprot, st_C_objimpl, st_C_objend,
st_C_gnumacro,
- st_C_ignore,
+ st_C_ignore, st_C_attribute,
st_C_javastruct,
st_C_operator,
st_C_class, st_C_template,
- st_C_struct, st_C_extern, st_C_enum, st_C_define, st_C_typedef, st_C_typespec
+ st_C_struct, st_C_extern, st_C_enum, st_C_define, st_C_typedef
};
static unsigned int hash __P((const char *, unsigned int));
static enum sym_type C_symtype __P((char *, int, int));
/* Feed stuff between (but not including) %[ and %] lines to:
- gperf -c -k 1,3 -o -p -r -t
+ gperf -m 5
%[
+%compare-strncmp
+%enum
+%struct-type
struct C_stab_entry { char *name; int c_ext; enum sym_type type; }
%%
-if, 0, st_C_ignore
-for, 0, st_C_ignore
-while, 0, st_C_ignore
-switch, 0, st_C_ignore
-return, 0, st_C_ignore
-@interface, 0, st_C_objprot
-@protocol, 0, st_C_objprot
-@implementation,0, st_C_objimpl
-@end, 0, st_C_objend
-import, C_JAVA, st_C_ignore
-package, C_JAVA, st_C_ignore
-friend, C_PLPL, st_C_ignore
-extends, C_JAVA, st_C_javastruct
-implements, C_JAVA, st_C_javastruct
-interface, C_JAVA, st_C_struct
-class, 0, st_C_class
-namespace, C_PLPL, st_C_struct
-domain, C_STAR, st_C_struct
-union, 0, st_C_struct
-struct, 0, st_C_struct
-extern, 0, st_C_extern
-enum, 0, st_C_enum
-typedef, 0, st_C_typedef
-define, 0, st_C_define
-operator, C_PLPL, st_C_operator
-template, 0, st_C_template
-bool, C_PLPL, st_C_typespec
-long, 0, st_C_typespec
-short, 0, st_C_typespec
-int, 0, st_C_typespec
-char, 0, st_C_typespec
-float, 0, st_C_typespec
-double, 0, st_C_typespec
-signed, 0, st_C_typespec
-unsigned, 0, st_C_typespec
-auto, 0, st_C_typespec
-void, 0, st_C_typespec
-static, 0, st_C_typespec
-const, 0, st_C_typespec
-volatile, 0, st_C_typespec
-explicit, C_PLPL, st_C_typespec
-mutable, C_PLPL, st_C_typespec
-typename, C_PLPL, st_C_typespec
+if, 0, st_C_ignore
+for, 0, st_C_ignore
+while, 0, st_C_ignore
+switch, 0, st_C_ignore
+return, 0, st_C_ignore
+__attribute__, 0, st_C_attribute
+@interface, 0, st_C_objprot
+@protocol, 0, st_C_objprot
+@implementation,0, st_C_objimpl
+@end, 0, st_C_objend
+import, (C_JAVA & !C_PLPL), st_C_ignore
+package, (C_JAVA & !C_PLPL), st_C_ignore
+friend, C_PLPL, st_C_ignore
+extends, (C_JAVA & !C_PLPL), st_C_javastruct
+implements, (C_JAVA & !C_PLPL), st_C_javastruct
+interface, (C_JAVA & !C_PLPL), st_C_struct
+class, 0, st_C_class
+namespace, C_PLPL, st_C_struct
+domain, C_STAR, st_C_struct
+union, 0, st_C_struct
+struct, 0, st_C_struct
+extern, 0, st_C_extern
+enum, 0, st_C_enum
+typedef, 0, st_C_typedef
+define, 0, st_C_define
+operator, C_PLPL, st_C_operator
+template, 0, st_C_template
# DEFUN used in emacs, the next three used in glibc (SYSCALL only for mach).
-DEFUN, 0, st_C_gnumacro
-SYSCALL, 0, st_C_gnumacro
-ENTRY, 0, st_C_gnumacro
-PSEUDO, 0, st_C_gnumacro
+DEFUN, 0, st_C_gnumacro
+SYSCALL, 0, st_C_gnumacro
+ENTRY, 0, st_C_gnumacro
+PSEUDO, 0, st_C_gnumacro
# These are defined inside C functions, so currently they are not met.
# EXFUN used in glibc, DEFVAR_* in emacs.
-#EXFUN, 0, st_C_gnumacro
-#DEFVAR_, 0, st_C_gnumacro
+#EXFUN, 0, st_C_gnumacro
+#DEFVAR_, 0, st_C_gnumacro
%]
-and replace lines between %< and %> with its output,
-then make in_word_set and C_stab_entry static. */
+and replace lines between %< and %> with its output, then:
+ - remove the #if characterset check
+ - make in_word_set static and not inline. */
/*%<*/
-/* C code produced by gperf version 2.7.1 (19981006 egcs) */
-/* Command-line: gperf -c -k 1,3 -o -p -r -t */
-struct C_stab_entry { char *name; int c_ext; enum sym_type type; };
+/* C code produced by gperf version 3.0.1 */
+/* Command-line: gperf -m 5 */
+/* Computed positions: -k'1-2' */
-#define TOTAL_KEYWORDS 47
-#define MIN_WORD_LENGTH 2
-#define MAX_WORD_LENGTH 15
-#define MIN_HASH_VALUE 18
-#define MAX_HASH_VALUE 138
-/* maximum key range = 121, duplicates = 0 */
+struct C_stab_entry { char *name; int c_ext; enum sym_type type; };
+/* maximum key range = 31, duplicates = 0 */
#ifdef __GNUC__
__inline
+#else
+#ifdef __cplusplus
+inline
+#endif
#endif
static unsigned int
hash (str, len)
{
static unsigned char asso_values[] =
{
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 63, 139, 139, 139, 33, 44,
- 62, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 42, 139, 139, 12, 32, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 34, 59, 37,
- 24, 58, 33, 3, 139, 16, 139, 139, 42, 60,
- 18, 11, 39, 139, 23, 57, 4, 63, 6, 20,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139, 139, 139, 139, 139,
- 139, 139, 139, 139, 139, 139
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 1, 34, 34, 34, 14, 14,
+ 34, 34, 34, 34, 34, 34, 34, 34, 13, 34,
+ 13, 34, 34, 12, 34, 34, 34, 34, 34, 11,
+ 34, 34, 34, 34, 34, 8, 34, 11, 34, 12,
+ 11, 0, 1, 34, 7, 0, 34, 34, 11, 9,
+ 0, 4, 0, 34, 7, 4, 14, 21, 34, 15,
+ 0, 2, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 34, 34, 34, 34
};
- register int hval = len;
-
- switch (hval)
- {
- default:
- case 3:
- hval += asso_values[(unsigned char)str[2]];
- case 2:
- case 1:
- hval += asso_values[(unsigned char)str[0]];
- break;
- }
- return hval;
+ return len + asso_values[(unsigned char)str[1]] + asso_values[(unsigned char)str[0]];
}
-#ifdef __GNUC__
-__inline
-#endif
static struct C_stab_entry *
in_word_set (str, len)
register const char *str;
register unsigned int len;
{
+ enum
+ {
+ TOTAL_KEYWORDS = 31,
+ MIN_WORD_LENGTH = 2,
+ MAX_WORD_LENGTH = 15,
+ MIN_HASH_VALUE = 3,
+ MAX_HASH_VALUE = 33
+ };
+
static struct C_stab_entry wordlist[] =
{
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {"if", 0, st_C_ignore},
- {""}, {""}, {""}, {""},
- {"int", 0, st_C_typespec},
- {""}, {""},
- {"void", 0, st_C_typespec},
- {""}, {""},
- {"interface", C_JAVA, st_C_struct},
- {""},
- {"SYSCALL", 0, st_C_gnumacro},
- {""},
- {"return", 0, st_C_ignore},
- {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {"while", 0, st_C_ignore},
- {"auto", 0, st_C_typespec},
- {""}, {""}, {""}, {""}, {""}, {""},
- {"float", 0, st_C_typespec},
- {"typedef", 0, st_C_typedef},
- {"typename", C_PLPL, st_C_typespec},
{""}, {""}, {""},
- {"friend", C_PLPL, st_C_ignore},
- {"volatile", 0, st_C_typespec},
- {""}, {""},
- {"for", 0, st_C_ignore},
- {"const", 0, st_C_typespec},
- {"import", C_JAVA, st_C_ignore},
- {""},
- {"define", 0, st_C_define},
- {"long", 0, st_C_typespec},
- {"implements", C_JAVA, st_C_javastruct},
- {"signed", 0, st_C_typespec},
- {""},
- {"extern", 0, st_C_extern},
- {"extends", C_JAVA, st_C_javastruct},
- {""},
- {"mutable", C_PLPL, st_C_typespec},
- {"template", 0, st_C_template},
- {"short", 0, st_C_typespec},
- {"bool", C_PLPL, st_C_typespec},
- {"char", 0, st_C_typespec},
- {"class", 0, st_C_class},
- {"operator", C_PLPL, st_C_operator},
- {""},
- {"switch", 0, st_C_ignore},
- {""},
- {"ENTRY", 0, st_C_gnumacro},
- {""},
- {"package", C_JAVA, st_C_ignore},
- {"union", 0, st_C_struct},
- {"@end", 0, st_C_objend},
- {"struct", 0, st_C_struct},
- {"namespace", C_PLPL, st_C_struct},
- {""}, {""},
- {"domain", C_STAR, st_C_struct},
- {"@interface", 0, st_C_objprot},
- {"PSEUDO", 0, st_C_gnumacro},
- {"double", 0, st_C_typespec},
- {""},
- {"@protocol", 0, st_C_objprot},
- {""},
- {"static", 0, st_C_typespec},
- {""}, {""},
- {"DEFUN", 0, st_C_gnumacro},
- {""}, {""}, {""}, {""},
- {"explicit", C_PLPL, st_C_typespec},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""},
- {"enum", 0, st_C_enum},
- {""}, {""},
- {"unsigned", 0, st_C_typespec},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {"@implementation",0, st_C_objimpl}
+ {"if", 0, st_C_ignore},
+ {"enum", 0, st_C_enum},
+ {"@end", 0, st_C_objend},
+ {"extern", 0, st_C_extern},
+ {"extends", (C_JAVA & !C_PLPL), st_C_javastruct},
+ {"for", 0, st_C_ignore},
+ {"interface", (C_JAVA & !C_PLPL), st_C_struct},
+ {"@protocol", 0, st_C_objprot},
+ {"@interface", 0, st_C_objprot},
+ {"operator", C_PLPL, st_C_operator},
+ {"return", 0, st_C_ignore},
+ {"friend", C_PLPL, st_C_ignore},
+ {"import", (C_JAVA & !C_PLPL), st_C_ignore},
+ {"@implementation",0, st_C_objimpl},
+ {"define", 0, st_C_define},
+ {"package", (C_JAVA & !C_PLPL), st_C_ignore},
+ {"implements", (C_JAVA & !C_PLPL), st_C_javastruct},
+ {"namespace", C_PLPL, st_C_struct},
+ {"domain", C_STAR, st_C_struct},
+ {"template", 0, st_C_template},
+ {"typedef", 0, st_C_typedef},
+ {"struct", 0, st_C_struct},
+ {"switch", 0, st_C_ignore},
+ {"union", 0, st_C_struct},
+ {"while", 0, st_C_ignore},
+ {"class", 0, st_C_class},
+ {"__attribute__", 0, st_C_attribute},
+ {"SYSCALL", 0, st_C_gnumacro},
+ {"PSEUDO", 0, st_C_gnumacro},
+ {"ENTRY", 0, st_C_gnumacro},
+ {"DEFUN", 0, st_C_gnumacro}
};
if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
{
register const char *s = wordlist[key].name;
- if (*str == *s && !strncmp (str + 1, s + 1, len - 1))
+ if (*str == *s && !strncmp (str + 1, s + 1, len - 1) && s[len] == '\0')
return &wordlist[key];
}
}
}
\f
+/*
+ * Ignoring __attribute__ ((list))
+ */
+static bool inattribute; /* looking at an __attribute__ construct */
+
/*
* C functions and variables are recognized using a simple
* finite automaton. fvdef is its state variable.
static enum
{
snone, /* nothing seen yet,
- or in struct body if cblev > 0 */
+ or in struct body if bracelev > 0 */
skeyseen, /* struct-like keyword seen */
stagseen, /* struct-like tag seen */
- sintemplate, /* inside template (ignore) */
scolonseen /* colon seen after struct-like tag */
} structdef;
static struct {
char **cname; /* nested class names */
- int *cblev; /* nested class curly brace level */
+ int *bracelev; /* nested class brace level */
int nl; /* class nesting level (elements used) */
int size; /* length of the array */
} cstack; /* stack for nested declaration tags */
#define nestlev (cstack.nl)
/* After struct keyword or in struct body, not inside a nested function. */
#define instruct (structdef == snone && nestlev > 0 \
- && cblev == cstack.cblev[nestlev-1] + 1)
+ && bracelev == cstack.bracelev[nestlev-1] + 1)
static void
-pushclass_above (cblev, str, len)
- int cblev;
+pushclass_above (bracelev, str, len)
+ int bracelev;
char *str;
int len;
{
int nl;
- popclass_above (cblev);
+ popclass_above (bracelev);
nl = cstack.nl;
if (nl >= cstack.size)
{
int size = cstack.size *= 2;
xrnew (cstack.cname, size, char *);
- xrnew (cstack.cblev, size, int);
+ xrnew (cstack.bracelev, size, int);
}
- assert (nl == 0 || cstack.cblev[nl-1] < cblev);
+ assert (nl == 0 || cstack.bracelev[nl-1] < bracelev);
cstack.cname[nl] = (str == NULL) ? NULL : savenstr (str, len);
- cstack.cblev[nl] = cblev;
+ cstack.bracelev[nl] = bracelev;
cstack.nl = nl + 1;
}
static void
-popclass_above (cblev)
- int cblev;
+popclass_above (bracelev)
+ int bracelev;
{
int nl;
for (nl = cstack.nl - 1;
- nl >= 0 && cstack.cblev[nl] >= cblev;
+ nl >= 0 && cstack.bracelev[nl] >= bracelev;
nl--)
{
if (cstack.cname[nl] != NULL)
*/
static bool
-consider_token (str, len, c, c_extp, cblev, parlev, is_func_or_var)
+consider_token (str, len, c, c_extp, bracelev, parlev, is_func_or_var)
register char *str; /* IN: token pointer */
register int len; /* IN: token length */
register int c; /* IN: first char after the token */
int *c_extp; /* IN, OUT: C extensions mask */
- int cblev; /* IN: curly brace level */
+ int bracelev; /* IN: brace level */
int parlev; /* IN: parenthesis level */
bool *is_func_or_var; /* OUT: function or variable found */
{
- /* When structdef is stagseen, scolonseen, or snone with cblev > 0,
+ /* When structdef is stagseen, scolonseen, or snone with bracelev > 0,
structtype is the type of the preceding struct-like keyword, and
- structcblev is the curly brace level where it has been seen. */
+ structbracelev is the brace level where it has been seen. */
static enum sym_type structtype;
- static int structcblev;
+ static int structbracelev;
static enum sym_type toktype;
toktype = C_symtype (str, len, *c_extp);
/*
- * Advance the definedef state machine.
- */
- switch (definedef)
- {
- case dnone:
- /* We're not on a preprocessor line. */
- if (toktype == st_C_gnumacro)
- {
- fvdef = fdefunkey;
- return FALSE;
- }
- break;
- case dsharpseen:
- if (toktype == st_C_define)
- {
- definedef = ddefineseen;
- }
- else
- {
- definedef = dignorerest;
- }
- return FALSE;
- case ddefineseen:
- /*
- * Make a tag for any macro, unless it is a constant
- * and constantypedefs is FALSE.
- */
- definedef = dignorerest;
- *is_func_or_var = (c == '(');
- if (!*is_func_or_var && !constantypedefs)
- return FALSE;
- else
- return TRUE;
- case dignorerest:
- return FALSE;
- default:
- error ("internal error: definedef value.", (char *)NULL);
- }
-
- /*
- * Now typedefs
- */
- switch (typdef)
- {
- case tnone:
- if (toktype == st_C_typedef)
- {
- if (typedefs)
- typdef = tkeyseen;
- fvextern = FALSE;
- fvdef = fvnone;
- return FALSE;
- }
- break;
- case tkeyseen:
- switch (toktype)
- {
- case st_none:
- case st_C_typespec:
- case st_C_class:
- case st_C_struct:
- case st_C_enum:
- typdef = ttypeseen;
- break;
- }
- break;
- case ttypeseen:
- if (structdef == snone && fvdef == fvnone)
- {
- fvdef = fvnameseen;
- return TRUE;
- }
- break;
- case tend:
- switch (toktype)
- {
- case st_C_typespec:
- case st_C_class:
- case st_C_struct:
- case st_C_enum:
- return FALSE;
- }
- return TRUE;
- }
-
- /*
- * This structdef business is NOT invoked when we are ctags and the
- * file is plain C. This is because a struct tag may have the same
- * name as another tag, and this loses with ctags.
+ * Skip __attribute__
*/
- switch (toktype)
- {
- case st_C_javastruct:
- if (structdef == stagseen)
- structdef = scolonseen;
- return FALSE;
- case st_C_template:
- case st_C_class:
- if ((*c_extp & C_AUTO) /* automatic detection of C++ language */
- && cblev == 0
- && definedef == dnone && structdef == snone
- && typdef == tnone && fvdef == fvnone)
- *c_extp = (*c_extp | C_PLPL) & ~C_AUTO;
- if (toktype == st_C_template)
- break;
- /* FALLTHRU */
- case st_C_struct:
- case st_C_enum:
- if (parlev == 0
- && fvdef != vignore
- && (typdef == tkeyseen
- || (typedefs_or_cplusplus && structdef == snone)))
- {
- structdef = skeyseen;
- structtype = toktype;
- structcblev = cblev;
- }
- return FALSE;
- }
-
- if (structdef == skeyseen)
+ if (toktype == st_C_attribute)
{
- structdef = stagseen;
- return TRUE;
- }
-
- if (typdef != tnone)
- definedef = dnone;
-
- /* Detect Objective C constructs. */
- switch (objdef)
- {
- case onone:
- switch (toktype)
- {
- case st_C_objprot:
- objdef = oprotocol;
- return FALSE;
- case st_C_objimpl:
- objdef = oimplementation;
- return FALSE;
- }
- break;
- case oimplementation:
- /* Save the class tag for functions or variables defined inside. */
- objtag = savenstr (str, len);
- objdef = oinbody;
+ inattribute = TRUE;
return FALSE;
- case oprotocol:
- /* Save the class tag for categories. */
- objtag = savenstr (str, len);
- objdef = otagseen;
- *is_func_or_var = TRUE;
- return TRUE;
- case oparenseen:
- objdef = ocatseen;
- *is_func_or_var = TRUE;
- return TRUE;
- case oinbody:
- break;
- case omethodsign:
- if (parlev == 0)
- {
- objdef = omethodtag;
- linebuffer_setlen (&token_name, len);
- strncpy (token_name.buffer, str, len);
- token_name.buffer[len] = '\0';
- return TRUE;
- }
- return FALSE;
- case omethodcolon:
- if (parlev == 0)
- objdef = omethodparm;
- return FALSE;
- case omethodparm:
- if (parlev == 0)
- {
- objdef = omethodtag;
- linebuffer_setlen (&token_name, token_name.len + len);
- strncat (token_name.buffer, str, len);
- return TRUE;
- }
- return FALSE;
- case oignore:
- if (toktype == st_C_objend)
- {
- /* Memory leakage here: the string pointed by objtag is
- never released, because many tests would be needed to
- avoid breaking on incorrect input code. The amount of
- memory leaked here is the sum of the lengths of the
- class tags.
- free (objtag); */
- objdef = onone;
- }
- return FALSE;
- }
-
- /* A function, variable or enum constant? */
- switch (toktype)
- {
- case st_C_extern:
- fvextern = TRUE;
- /* FALLTHRU */
- case st_C_typespec:
- switch (fvdef)
- {
- case finlist:
- case flistseen:
- case fignore:
- case vignore:
- break;
- default:
- fvdef = fvnone;
- }
- return FALSE;
- case st_C_ignore:
- fvextern = FALSE;
- fvdef = vignore;
- return FALSE;
- case st_C_operator:
- fvdef = foperator;
- *is_func_or_var = TRUE;
- return TRUE;
- case st_none:
- if (constantypedefs
- && structdef == snone
- && structtype == st_C_enum && cblev > structcblev)
- return TRUE; /* enum constant */
- switch (fvdef)
- {
- case fdefunkey:
- if (cblev > 0)
- break;
- fvdef = fdefunname; /* GNU macro */
- *is_func_or_var = TRUE;
- return TRUE;
- case fvnone:
- if ((strneq (str, "asm", 3) && endtoken (str[3]))
- || (strneq (str, "__asm__", 7) && endtoken (str[7])))
- {
- fvdef = vignore;
- return FALSE;
- }
+ }
+
+ /*
+ * Advance the definedef state machine.
+ */
+ switch (definedef)
+ {
+ case dnone:
+ /* We're not on a preprocessor line. */
+ if (toktype == st_C_gnumacro)
+ {
+ fvdef = fdefunkey;
+ return FALSE;
+ }
+ break;
+ case dsharpseen:
+ if (toktype == st_C_define)
+ {
+ definedef = ddefineseen;
+ }
+ else
+ {
+ definedef = dignorerest;
+ }
+ return FALSE;
+ case ddefineseen:
+ /*
+ * Make a tag for any macro, unless it is a constant
+ * and constantypedefs is FALSE.
+ */
+ definedef = dignorerest;
+ *is_func_or_var = (c == '(');
+ if (!*is_func_or_var && !constantypedefs)
+ return FALSE;
+ else
+ return TRUE;
+ case dignorerest:
+ return FALSE;
+ default:
+ error ("internal error: definedef value.", (char *)NULL);
+ }
+
+ /*
+ * Now typedefs
+ */
+ switch (typdef)
+ {
+ case tnone:
+ if (toktype == st_C_typedef)
+ {
+ if (typedefs)
+ typdef = tkeyseen;
+ fvextern = FALSE;
+ fvdef = fvnone;
+ return FALSE;
+ }
+ break;
+ case tkeyseen:
+ switch (toktype)
+ {
+ case st_none:
+ case st_C_class:
+ case st_C_struct:
+ case st_C_enum:
+ typdef = ttypeseen;
+ }
+ break;
+ case ttypeseen:
+ if (structdef == snone && fvdef == fvnone)
+ {
+ fvdef = fvnameseen;
+ return TRUE;
+ }
+ break;
+ case tend:
+ switch (toktype)
+ {
+ case st_C_class:
+ case st_C_struct:
+ case st_C_enum:
+ return FALSE;
+ }
+ return TRUE;
+ }
+
+ /*
+ * This structdef business is NOT invoked when we are ctags and the
+ * file is plain C. This is because a struct tag may have the same
+ * name as another tag, and this loses with ctags.
+ */
+ switch (toktype)
+ {
+ case st_C_javastruct:
+ if (structdef == stagseen)
+ structdef = scolonseen;
+ return FALSE;
+ case st_C_template:
+ case st_C_class:
+ if ((*c_extp & C_AUTO) /* automatic detection of C++ language */
+ && bracelev == 0
+ && definedef == dnone && structdef == snone
+ && typdef == tnone && fvdef == fvnone)
+ *c_extp = (*c_extp | C_PLPL) & ~C_AUTO;
+ if (toktype == st_C_template)
+ break;
+ /* FALLTHRU */
+ case st_C_struct:
+ case st_C_enum:
+ if (parlev == 0
+ && fvdef != vignore
+ && (typdef == tkeyseen
+ || (typedefs_or_cplusplus && structdef == snone)))
+ {
+ structdef = skeyseen;
+ structtype = toktype;
+ structbracelev = bracelev;
+ if (fvdef == fvnameseen)
+ fvdef = fvnone;
+ }
+ return FALSE;
+ }
+
+ if (structdef == skeyseen)
+ {
+ structdef = stagseen;
+ return TRUE;
+ }
+
+ if (typdef != tnone)
+ definedef = dnone;
+
+ /* Detect Objective C constructs. */
+ switch (objdef)
+ {
+ case onone:
+ switch (toktype)
+ {
+ case st_C_objprot:
+ objdef = oprotocol;
+ return FALSE;
+ case st_C_objimpl:
+ objdef = oimplementation;
+ return FALSE;
+ }
+ break;
+ case oimplementation:
+ /* Save the class tag for functions or variables defined inside. */
+ objtag = savenstr (str, len);
+ objdef = oinbody;
+ return FALSE;
+ case oprotocol:
+ /* Save the class tag for categories. */
+ objtag = savenstr (str, len);
+ objdef = otagseen;
+ *is_func_or_var = TRUE;
+ return TRUE;
+ case oparenseen:
+ objdef = ocatseen;
+ *is_func_or_var = TRUE;
+ return TRUE;
+ case oinbody:
+ break;
+ case omethodsign:
+ if (parlev == 0)
+ {
+ fvdef = fvnone;
+ objdef = omethodtag;
+ linebuffer_setlen (&token_name, len);
+ strncpy (token_name.buffer, str, len);
+ token_name.buffer[len] = '\0';
+ return TRUE;
+ }
+ return FALSE;
+ case omethodcolon:
+ if (parlev == 0)
+ objdef = omethodparm;
+ return FALSE;
+ case omethodparm:
+ if (parlev == 0)
+ {
+ fvdef = fvnone;
+ objdef = omethodtag;
+ linebuffer_setlen (&token_name, token_name.len + len);
+ strncat (token_name.buffer, str, len);
+ return TRUE;
+ }
+ return FALSE;
+ case oignore:
+ if (toktype == st_C_objend)
+ {
+ /* Memory leakage here: the string pointed by objtag is
+ never released, because many tests would be needed to
+ avoid breaking on incorrect input code. The amount of
+ memory leaked here is the sum of the lengths of the
+ class tags.
+ free (objtag); */
+ objdef = onone;
+ }
+ return FALSE;
+ }
+
+ /* A function, variable or enum constant? */
+ switch (toktype)
+ {
+ case st_C_extern:
+ fvextern = TRUE;
+ switch (fvdef)
+ {
+ case finlist:
+ case flistseen:
+ case fignore:
+ case vignore:
+ break;
+ default:
+ fvdef = fvnone;
+ }
+ return FALSE;
+ case st_C_ignore:
+ fvextern = FALSE;
+ fvdef = vignore;
+ return FALSE;
+ case st_C_operator:
+ fvdef = foperator;
+ *is_func_or_var = TRUE;
+ return TRUE;
+ case st_none:
+ if (constantypedefs
+ && structdef == snone
+ && structtype == st_C_enum && bracelev > structbracelev)
+ return TRUE; /* enum constant */
+ switch (fvdef)
+ {
+ case fdefunkey:
+ if (bracelev > 0)
+ break;
+ fvdef = fdefunname; /* GNU macro */
+ *is_func_or_var = TRUE;
+ return TRUE;
+ case fvnone:
+ switch (typdef)
+ {
+ case ttypeseen:
+ return FALSE;
+ case tnone:
+ if ((strneq (str, "asm", 3) && endtoken (str[3]))
+ || (strneq (str, "__asm__", 7) && endtoken (str[7])))
+ {
+ fvdef = vignore;
+ return FALSE;
+ }
+ break;
+ }
+ /* FALLTHRU */
+ case fvnameseen:
if (len >= 10 && strneq (str+len-10, "::operator", 10))
{
if (*c_extp & C_AUTO) /* automatic detection of C++ */
*is_func_or_var = TRUE;
return TRUE;
}
- if (cblev > 0 && !instruct)
+ if (bracelev > 0 && !instruct)
break;
fvdef = fvnameseen; /* function or variable */
*is_func_or_var = TRUE;
register int toklen; /* length of current token */
char *qualifier; /* string used to qualify names */
int qlen; /* length of qualifier */
- int cblev; /* current curly brace level */
+ int bracelev; /* current brace level */
+ int bracketlev; /* current bracket level */
int parlev; /* current parenthesis level */
- int typdefcblev; /* cblev where a typedef struct body begun */
+ int attrparlev; /* __attribute__ parenthesis level */
+ int templatelev; /* current template level */
+ int typdefbracelev; /* bracelev where a typedef struct body begun */
bool incomm, inquote, inchar, quotednl, midtoken;
bool yacc_rules; /* in the rules part of a yacc file */
struct tok savetoken; /* token saved during preprocessor handling */
cstack.size = (DEBUG) ? 1 : 4;
cstack.nl = 0;
cstack.cname = xnew (cstack.size, char *);
- cstack.cblev = xnew (cstack.size, int);
+ cstack.bracelev = xnew (cstack.size, int);
}
- tokoff = toklen = typdefcblev = 0; /* keep compiler quiet */
+ tokoff = toklen = typdefbracelev = 0; /* keep compiler quiet */
curndx = newndx = 0;
lp = curlb.buffer;
*lp = 0;
yacc_rules = FALSE;
midtoken = inquote = inchar = incomm = quotednl = FALSE;
token.valid = savetoken.valid = FALSE;
- cblev = 0;
- parlev = 0;
+ bracelev = bracketlev = parlev = attrparlev = templatelev = 0;
if (cjava)
{ qualifier = "."; qlen = 1; }
else
c = *lp++;
if (c == '\\')
{
- /* If we're at the end of the line, the next character is a
- '\0'; don't skip it, because it's the thing that tells us
+ /* If we are at the end of the line, the next character is a
+ '\0'; do not skip it, because it is what tells us
to read the next line. */
if (*lp == '\0')
{
}
continue;
}
- else
- switch (c)
- {
- case '"':
- inquote = TRUE;
- switch (fvdef)
- {
- case fdefunkey:
- case fstartlist:
- case finlist:
- case fignore:
- case vignore:
- break;
- default:
- fvextern = FALSE;
- fvdef = fvnone;
- }
- continue;
- case '\'':
- inchar = TRUE;
- if (fvdef != finlist && fvdef != fignore && fvdef !=vignore)
- {
- fvextern = FALSE;
- fvdef = fvnone;
- }
- continue;
- case '/':
- if (*lp == '*')
- {
- lp++;
- incomm = TRUE;
+ else if (bracketlev > 0)
+ {
+ switch (c)
+ {
+ case ']':
+ if (--bracketlev > 0)
continue;
- }
- else if (/* cplpl && */ *lp == '/')
- {
- c = '\0';
- break;
- }
- else
break;
- case '%':
- if ((c_ext & YACC) && *lp == '%')
- {
- /* Entering or exiting rules section in yacc file. */
- lp++;
- definedef = dnone; fvdef = fvnone; fvextern = FALSE;
- typdef = tnone; structdef = snone;
- midtoken = inquote = inchar = incomm = quotednl = FALSE;
- cblev = 0;
- yacc_rules = !yacc_rules;
- continue;
- }
- else
+ case '\0':
+ CNL_SAVE_DEFINEDEF ();
break;
- case '#':
- if (definedef == dnone)
- {
- char *cp;
- bool cpptoken = TRUE;
-
- /* Look back on this line. If all blanks, or nonblanks
- followed by an end of comment, this is a preprocessor
- token. */
- for (cp = newlb.buffer; cp < lp-1; cp++)
- if (!iswhite (*cp))
- {
- if (*cp == '*' && *(cp+1) == '/')
- {
- cp++;
- cpptoken = TRUE;
- }
- else
- cpptoken = FALSE;
- }
- if (cpptoken)
- definedef = dsharpseen;
- } /* if (definedef == dnone) */
-
+ }
+ continue;
+ }
+ else switch (c)
+ {
+ case '"':
+ inquote = TRUE;
+ if (inattribute)
+ break;
+ switch (fvdef)
+ {
+ case fdefunkey:
+ case fstartlist:
+ case finlist:
+ case fignore:
+ case vignore:
+ break;
+ default:
+ fvextern = FALSE;
+ fvdef = fvnone;
+ }
+ continue;
+ case '\'':
+ inchar = TRUE;
+ if (inattribute)
+ break;
+ if (fvdef != finlist && fvdef != fignore && fvdef !=vignore)
+ {
+ fvextern = FALSE;
+ fvdef = fvnone;
+ }
+ continue;
+ case '/':
+ if (*lp == '*')
+ {
+ lp++;
+ incomm = TRUE;
+ continue;
+ }
+ else if (/* cplpl && */ *lp == '/')
+ {
+ c = '\0';
+ break;
+ }
+ else
+ break;
+ case '%':
+ if ((c_ext & YACC) && *lp == '%')
+ {
+ /* Entering or exiting rules section in yacc file. */
+ lp++;
+ definedef = dnone; fvdef = fvnone; fvextern = FALSE;
+ typdef = tnone; structdef = snone;
+ midtoken = inquote = inchar = incomm = quotednl = FALSE;
+ bracelev = 0;
+ yacc_rules = !yacc_rules;
+ continue;
+ }
+ else
+ break;
+ case '#':
+ if (definedef == dnone)
+ {
+ char *cp;
+ bool cpptoken = TRUE;
+
+ /* Look back on this line. If all blanks, or nonblanks
+ followed by an end of comment, this is a preprocessor
+ token. */
+ for (cp = newlb.buffer; cp < lp-1; cp++)
+ if (!iswhite (*cp))
+ {
+ if (*cp == '*' && *(cp+1) == '/')
+ {
+ cp++;
+ cpptoken = TRUE;
+ }
+ else
+ cpptoken = FALSE;
+ }
+ if (cpptoken)
+ definedef = dsharpseen;
+ } /* if (definedef == dnone) */
+ continue;
+ case '[':
+ bracketlev++;
continue;
- } /* switch (c) */
+ } /* switch (c) */
/* Consider token only if some involved conditions are satisfied. */
if (typdef != tignore
&& definedef != dignorerest
&& fvdef != finlist
- && structdef != sintemplate
+ && templatelev == 0
&& (definedef != dnone
- || structdef != scolonseen))
+ || structdef != scolonseen)
+ && !inattribute)
{
if (midtoken)
{
if (yacc_rules
|| consider_token (newlb.buffer + tokoff, toklen, c,
- &c_ext, cblev, parlev, &funorvar))
+ &c_ext, bracelev, parlev,
+ &funorvar))
{
if (fvdef == foperator)
{
|| (funorvar
&& definedef == dnone
&& structdef == snone
- && cblev > 0));
+ && bracelev > 0));
}
token.lineno = lineno;
token.offset = tokoff;
|| instruct)
make_C_tag (funorvar);
}
+ else /* not yacc and consider_token failed */
+ {
+ if (inattribute && fvdef == fignore)
+ {
+ /* We have just met __attribute__ after a
+ function parameter list: do not tag the
+ function again. */
+ fvdef = fvnone;
+ }
+ }
midtoken = FALSE;
}
} /* if (endtoken (c)) */
switch (fvdef)
{
case fstartlist:
+ /* This prevents tagging fb in
+ void (__attribute__((noreturn)) *fb) (void);
+ Fixing this is not easy and not very important. */
fvdef = finlist;
continue;
case flistseen:
fvdef = fignore;
}
break;
- case fvnameseen:
- fvdef = fvnone;
- break;
}
if (structdef == stagseen && !cjava)
{
- popclass_above (cblev);
+ popclass_above (bracelev);
structdef = snone;
}
break;
switch (c)
{
case ':':
+ if (inattribute)
+ break;
if (yacc_rules && token.offset == 0 && token.valid)
{
make_C_tag (FALSE); /* a yacc function */
}
break;
case ';':
- if (definedef != dnone)
+ if (definedef != dnone || inattribute)
break;
switch (typdef)
{
fvdef = fvnone;
break;
case fvnameseen:
- if ((globals && cblev == 0 && (!fvextern || declarations))
+ if ((globals && bracelev == 0 && (!fvextern || declarations))
|| (members && instruct))
make_C_tag (FALSE); /* a variable */
fvextern = FALSE;
token.valid = FALSE;
break;
case flistseen:
- if (declarations
- && (typdef == tnone || (typdef != tignore && instruct)))
- make_C_tag (TRUE); /* a function declaration */
+ if ((declarations
+ && (cplpl || !instruct)
+ && (typdef == tnone || (typdef != tignore && instruct)))
+ || (members
+ && plainc && instruct))
+ make_C_tag (TRUE); /* a function */
/* FALLTHRU */
default:
fvextern = FALSE;
structdef = snone;
break;
case ',':
- if (definedef != dnone)
+ if (definedef != dnone || inattribute)
break;
switch (objdef)
{
case fdefunname:
fvdef = fignore;
break;
- case fvnameseen: /* a variable */
- if ((globals && cblev == 0 && (!fvextern || declarations))
- || (members && instruct))
- make_C_tag (FALSE);
+ case fvnameseen:
+ if (parlev == 0
+ && ((globals
+ && bracelev == 0
+ && templatelev == 0
+ && (!fvextern || declarations))
+ || (members && instruct)))
+ make_C_tag (FALSE); /* a variable */
break;
- case flistseen: /* a function */
+ case flistseen:
if ((declarations && typdef == tnone && !instruct)
|| (members && typdef != tignore && instruct))
{
- make_C_tag (TRUE); /* a function declaration */
+ make_C_tag (TRUE); /* a function */
fvdef = fvnameseen;
}
else if (!declarations)
if (structdef == stagseen)
structdef = snone;
break;
- case '[':
- if (definedef != dnone)
+ case ']':
+ if (definedef != dnone || inattribute)
break;
if (structdef == stagseen)
structdef = snone;
case vignore:
break;
case fvnameseen:
- if ((members && cblev == 1)
- || (globals && cblev == 0
+ if ((members && bracelev == 1)
+ || (globals && bracelev == 0
&& (!fvextern || declarations)))
make_C_tag (FALSE); /* a variable */
/* FALLTHRU */
}
break;
case '(':
+ if (inattribute)
+ {
+ attrparlev++;
+ break;
+ }
if (definedef != dnone)
break;
if (objdef == otagseen && parlev == 0)
parlev++;
break;
case ')':
+ if (inattribute)
+ {
+ if (--attrparlev == 0)
+ inattribute = FALSE;
+ break;
+ }
if (definedef != dnone)
break;
if (objdef == ocatseen && parlev == 1)
if (typdef == ttypeseen)
{
/* Whenever typdef is set to tinbody (currently only
- here), typdefcblev should be set to cblev. */
+ here), typdefbracelev should be set to bracelev. */
typdef = tinbody;
- typdefcblev = cblev;
+ typdefbracelev = bracelev;
}
switch (fvdef)
{
break;
default:
/* Neutralize `extern "C" {' grot. */
- if (cblev == 0 && structdef == snone && nestlev == 0
+ if (bracelev == 0 && structdef == snone && nestlev == 0
&& typdef == tnone)
- cblev = -1;
+ bracelev = -1;
}
break;
}
switch (structdef)
{
case skeyseen: /* unnamed struct */
- pushclass_above (cblev, NULL, 0);
+ pushclass_above (bracelev, NULL, 0);
structdef = snone;
break;
case stagseen: /* named struct or enum */
case scolonseen: /* a class */
- pushclass_above (cblev, token.line+token.offset, token.length);
+ pushclass_above (bracelev,token.line+token.offset, token.length);
structdef = snone;
make_C_tag (FALSE); /* a struct or enum */
break;
}
- cblev++;
+ bracelev++;
break;
case '*':
if (definedef != dnone)
break;
if (!ignoreindent && lp == newlb.buffer + 1)
{
- if (cblev != 0)
+ if (bracelev != 0)
token.valid = FALSE;
- cblev = 0; /* reset curly brace level if first column */
+ bracelev = 0; /* reset brace level if first column */
parlev = 0; /* also reset paren level, just in case... */
}
- else if (cblev > 0)
- cblev--;
+ else if (bracelev > 0)
+ bracelev--;
else
token.valid = FALSE; /* something gone amiss, token unreliable */
- popclass_above (cblev);
+ popclass_above (bracelev);
structdef = snone;
- /* Only if typdef == tinbody is typdefcblev significant. */
- if (typdef == tinbody && cblev <= typdefcblev)
+ /* Only if typdef == tinbody is typdefbracelev significant. */
+ if (typdef == tinbody && bracelev <= typdefbracelev)
{
- assert (cblev == typdefcblev);
+ assert (bracelev == typdefbracelev);
typdef = tend;
}
break;
case vignore:
break;
case fvnameseen:
- if ((members && cblev == 1)
- || (globals && cblev == 0 && (!fvextern || declarations)))
+ if ((members && bracelev == 1)
+ || (globals && bracelev == 0 && (!fvextern || declarations)))
make_C_tag (FALSE); /* a variable */
/* FALLTHRU */
default:
}
break;
case '<':
- if (cplpl && structdef == stagseen)
+ if (cplpl
+ && (structdef == stagseen || fvdef == fvnameseen))
{
- structdef = sintemplate;
+ templatelev++;
break;
}
goto resetfvdef;
case '>':
- if (structdef == sintemplate)
+ if (templatelev > 0)
{
- structdef = stagseen;
+ templatelev--;
break;
}
goto resetfvdef;
case '+':
case '-':
- if (objdef == oinbody && cblev == 0)
+ if (objdef == oinbody && bracelev == 0)
{
objdef = omethodsign;
break;
}
/* FALLTHRU */
resetfvdef:
- case '#': case '~': case '&': case '%': case '/': case '|':
- case '^': case '!': case '.': case '?': case ']':
+ case '#': case '~': case '&': case '%': case '/':
+ case '|': case '^': case '!': case '.': case '?':
if (definedef != dnone)
break;
/* These surely cannot follow a function tag in C. */
}
\f
+/*
+ * Lua script language parsing
+ * Original code by David A. Capello <dacap@users.sourceforge.net> (2004)
+ *
+ * "function" and "local function" are tags if they start at column 1.
+ */
+static void
+Lua_functions (inf)
+ FILE *inf;
+{
+ register char *bp;
+
+ LOOP_ON_INPUT_LINES (inf, lb, bp)
+ {
+ if (bp[0] != 'f' && bp[0] != 'l')
+ continue;
+
+ LOOKING_AT (bp, "local"); /* skip possible "local" */
+
+ if (LOOKING_AT (bp, "function"))
+ get_tag (bp, NULL);
+ }
+}
+
+\f
/*
* Postscript tag functions
* Just look for lines where the first character is '/'
HCoop / bpt / emacs.git / commitdiff