/* Tags file maker to go with GNU Emacs
- Copyright (C) 1984, 87, 88, 89, 93, 94, 95
+ Copyright (C) 1984, 87, 88, 89, 93, 94, 95, 98, 99
Free Software Foundation, Inc. and Ken Arnold
This file is not considered part of GNU Emacs.
* Francesco Potorti` reorganised C and C++ based on work by Joe Wells.
* Regexp tags by Tom Tromey.
*
- * Francesco Potorti` (F.Potorti@cnuce.cnr.it) is the current maintainer.
+ * Francesco Potorti` (pot@gnu.org) is the current maintainer.
*/
-char pot_etags_version[] = "@(#) pot revision number is 11.66";
+char pot_etags_version[] = "@(#) pot revision number is 13.44";
#define TRUE 1
#define FALSE 0
# define DEBUG FALSE
#endif
+#if defined(__STDC__) && (__STDC__ || defined(__SUNPRO_C))
+# define P_(proto) proto
+#else
+# define P_(proto) ()
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* On some systems, Emacs defines static as nothing for the sake
+ of unexec. We don't want that here since we don't use unexec. */
+# undef static
+# define ETAGS_REGEXPS /* use the regexp features */
+# define LONG_OPTIONS /* accept long options */
+#endif /* HAVE_CONFIG_H */
+
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE 1 /* enables some compiler checks on GNU */
+#endif
+
#ifdef MSDOS
-# include <string.h>
+# undef MSDOS
+# define MSDOS TRUE
# include <fcntl.h>
# include <sys/param.h>
+# include <io.h>
+# ifndef HAVE_CONFIG_H
+# define DOS_NT
+# include <sys/config.h>
+# endif
+#else
+# define MSDOS FALSE
#endif /* MSDOS */
#ifdef WINDOWSNT
# include <stdlib.h>
# include <fcntl.h>
# include <string.h>
+# include <direct.h>
# include <io.h>
# define MAXPATHLEN _MAX_PATH
-#endif
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
- /* On some systems, Emacs defines static as nothing for the sake
- of unexec. We don't want that here since we don't use unexec. */
-# undef static
-#endif
+# ifdef HAVE_CONFIG_H
+# undef HAVE_NTGUI
+# else
+# define DOS_NT
+# endif /* not HAVE_CONFIG_H */
+# ifndef HAVE_GETCWD
+# define HAVE_GETCWD
+# endif /* undef HAVE_GETCWD */
+#else /* !WINDOWSNT */
+# ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <string.h>
+# else
+ extern char *getenv ();
+# endif
+#endif /* !WINDOWSNT */
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# if defined (HAVE_GETCWD) && !WINDOWSNT
+ extern char *getcwd (char *buf, size_t size);
+# endif
+#endif /* HAVE_UNISTD_H */
#include <stdio.h>
#include <ctype.h>
#include <errno.h>
#ifndef errno
-extern int errno;
+ extern int errno;
#endif
#include <sys/types.h>
#include <sys/stat.h>
# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
#endif
-#include <getopt.h>
+#ifdef LONG_OPTIONS
+# include <getopt.h>
+#else
+# define getopt_long(argc,argv,optstr,lopts,lind) getopt (argc, argv, optstr)
+ extern char *optarg;
+ extern int optind, opterr;
+#endif /* LONG_OPTIONS */
#ifdef ETAGS_REGEXPS
# include <regex.h>
#endif /* ETAGS_REGEXPS */
/* Define CTAGS to make the program "ctags" compatible with the usual one.
- Let it undefined to make the program "etags", which makes emacs-style
+ Leave it undefined to make the program "etags", which makes emacs-style
tag tables and tags typedefs, #defines and struct/union/enum by default. */
#ifdef CTAGS
# undef CTAGS
/* C extensions. */
#define C_PLPL 0x00001 /* C++ */
#define C_STAR 0x00003 /* C* */
+#define C_JAVA 0x00005 /* JAVA */
#define YACC 0x10000 /* yacc file */
-#define streq(s,t) ((DEBUG &&!(s)&&!(t)&&(abort(),1)) || !strcmp(s,t))
-#define strneq(s,t,n) ((DEBUG &&!(s)&&!(t)&&(abort(),1)) || !strncmp(s,t,n))
+#define streq(s,t) ((DEBUG && (s) == NULL && (t) == NULL \
+ && (abort (), 1)) || !strcmp (s, t))
+#define strneq(s,t,n) ((DEBUG && (s) == NULL && (t) == NULL \
+ && (abort (), 1)) || !strncmp (s, t, n))
-#define lowcase(c) tolower ((unsigned char)c)
+#define lowcase(c) tolower ((char)c)
-#define iswhite(arg) (_wht[arg]) /* T if char is white */
-#define begtoken(arg) (_btk[arg]) /* T if char can start token */
-#define intoken(arg) (_itk[arg]) /* T if char can be in token */
-#define endtoken(arg) (_etk[arg]) /* T if char ends tokens */
-
-#ifdef DOS_NT
-# define absolutefn(fn) (fn[0] == '/' \
- || (fn[1] == ':' && fn[2] == '/'))
-#else
-# define absolutefn(fn) (fn[0] == '/')
-#endif
+#define CHARS 256 /* 2^sizeof(char) */
+#define CHAR(x) ((unsigned int)x & (CHARS - 1))
+#define iswhite(c) (_wht[CHAR(c)]) /* c is white */
+#define notinname(c) (_nin[CHAR(c)]) /* c is not in a name */
+#define begtoken(c) (_btk[CHAR(c)]) /* c can start token */
+#define intoken(c) (_itk[CHAR(c)]) /* c can be in token */
+#define endtoken(c) (_etk[CHAR(c)]) /* c ends tokens */
/*
- * xnew -- allocate storage
+ * xnew, xrnew -- allocate, reallocate storage
*
* SYNOPSIS: Type *xnew (int n, Type);
+ * Type *xrnew (OldPointer, int n, Type);
*/
-#define xnew(n,Type) ((Type *) xmalloc ((n) * sizeof (Type)))
+#ifdef chkmalloc
+# include "chkmalloc.h"
+# define xnew(n,Type) ((Type *) trace_malloc (__FILE__, __LINE__, \
+ (n) * sizeof (Type)))
+# define xrnew(op,n,Type) ((Type *) trace_realloc (__FILE__, __LINE__, \
+ (op), (n) * sizeof (Type)))
+#else
+# define xnew(n,Type) ((Type *) xmalloc ((n) * sizeof (Type)))
+# define xrnew(op,n,Type) ((Type *) xrealloc ((op), (n) * sizeof (Type)))
+#endif
+
+typedef int bool;
+
+typedef void Lang_function P_((FILE *));
-typedef int logical;
+typedef struct
+{
+ char *suffix;
+ char *command; /* Takes one arg and decompresses to stdout */
+} compressor;
+
+typedef struct
+{
+ char *name;
+ Lang_function *function;
+ char **suffixes;
+ char **interpreters;
+} language;
-typedef struct nd_st
+typedef struct node_st
{ /* sorting structure */
char *name; /* function or type name */
char *file; /* file name */
- logical is_func; /* use pattern or line no */
- logical been_warned; /* set if noticed dup */
+ bool is_func; /* use pattern or line no */
+ bool been_warned; /* set if noticed dup */
int lno; /* line number tag is on */
long cno; /* character number line starts on */
char *pat; /* search pattern */
- struct nd_st *left, *right; /* left and right sons */
-} NODE;
-
-extern char *getenv ();
-
-char *concat ();
-char *savenstr (), *savestr ();
-char *etags_strchr (), *etags_strrchr ();
-char *etags_getcwd ();
-char *relative_filename (), *absolute_filename (), *absolute_dirname ();
-long *xmalloc (), *xrealloc ();
-
-typedef void Lang_function ();
-#if FALSE /* many compilers barf on this */
-Lang_function Asm_labels;
-Lang_function default_C_entries;
-Lang_function C_entries;
-Lang_function Cplusplus_entries;
-Lang_function Cstar_entries;
-Lang_function Erlang_functions;
-Lang_function Fortran_functions;
-Lang_function Yacc_entries;
-Lang_function Lisp_functions;
-Lang_function Pascal_functions;
-Lang_function Perl_functions;
-Lang_function Prolog_functions;
-Lang_function Scheme_functions;
-Lang_function TeX_functions;
-Lang_function just_read_file;
-#else /* so let's write it this way */
-void Asm_labels ();
-void C_entries ();
-void default_C_entries ();
-void plain_C_entries ();
-void Cplusplus_entries ();
-void Cstar_entries ();
-void Erlang_functions ();
-void Fortran_functions ();
-void Yacc_entries ();
-void Lisp_functions ();
-void Pascal_functions ();
-void Perl_functions ();
-void Prolog_functions ();
-void Scheme_functions ();
-void TeX_functions ();
-void just_read_file ();
-#endif
+ struct node_st *left, *right; /* left and right sons */
+} node;
+
+/*
+ * A `linebuffer' is a structure which holds a line of text.
+ * `readline_internal' reads a line from a stream into a linebuffer
+ * and works regardless of the length of the line.
+ * SIZE is the size of BUFFER, LEN is the length of the string in
+ * BUFFER after readline reads it.
+ */
+typedef struct
+{
+ long size;
+ int len;
+ char *buffer;
+} linebuffer;
+
+/* Many compilers barf on this:
+ Lang_function Ada_funcs;
+ so let's write it this way */
+static void Ada_funcs P_((FILE *));
+static void Asm_labels P_((FILE *));
+static void C_entries P_((int c_ext, FILE *));
+static void default_C_entries P_((FILE *));
+static void plain_C_entries P_((FILE *));
+static void Cjava_entries P_((FILE *));
+static void Cobol_paragraphs P_((FILE *));
+static void Cplusplus_entries P_((FILE *));
+static void Cstar_entries P_((FILE *));
+static void Erlang_functions P_((FILE *));
+static void Fortran_functions P_((FILE *));
+static void Yacc_entries P_((FILE *));
+static void Lisp_functions P_((FILE *));
+static void Pascal_functions P_((FILE *));
+static void Perl_functions P_((FILE *));
+static void Postscript_functions P_((FILE *));
+static void Prolog_functions P_((FILE *));
+static void Python_functions P_((FILE *));
+static void Scheme_functions P_((FILE *));
+static void TeX_functions P_((FILE *));
+static void just_read_file P_((FILE *));
+
+static void print_language_names P_((void));
+static void print_version P_((void));
+static void print_help P_((void));
+int main P_((int, char **));
+static int number_len P_((long));
+
+static compressor *get_compressor_from_suffix P_((char *, char **));
+static language *get_language_from_name P_((char *));
+static language *get_language_from_interpreter P_((char *));
+static language *get_language_from_suffix P_((char *));
+static int total_size_of_entries P_((node *));
+static long readline P_((linebuffer *, FILE *));
+static long readline_internal P_((linebuffer *, FILE *));
+static void get_tag P_((char *));
-Lang_function *get_language_from_name ();
-Lang_function *get_language_from_interpreter ();
-Lang_function *get_language_from_suffix ();
-int total_size_of_entries ();
-long readline ();
-long readline_internal ();
#ifdef ETAGS_REGEXPS
-void add_regex ();
-#endif
-void add_node ();
-void error ();
-void suggest_asking_for_help ();
-void fatal (), pfatal ();
-void find_entries ();
-void free_tree ();
-void getit ();
-void init ();
-void initbuffer ();
-void pfnote ();
-void process_file ();
-void put_entries ();
-void takeprec ();
+static void analyse_regex P_((char *, bool));
+static void add_regex P_((char *, bool, language *));
+static void free_patterns P_((void));
+#endif /* ETAGS_REGEXPS */
+static void error P_((const char *, const char *));
+static void suggest_asking_for_help P_((void));
+static void fatal P_((char *, char *));
+static void pfatal P_((char *));
+static void add_node P_((node *, node **));
+
+static void init P_((void));
+static void initbuffer P_((linebuffer *));
+static void find_entries P_((char *, FILE *));
+static void free_tree P_((node *));
+static void pfnote P_((char *, bool, char *, int, int, long));
+static void new_pfnote P_((char *, int, bool, char *, int, int, long));
+static void process_file P_((char *));
+static void put_entries P_((node *));
+static void takeprec P_((void));
+
+static char *concat P_((char *, char *, char *));
+static char *skip_spaces P_((char *));
+static char *skip_non_spaces P_((char *));
+static char *savenstr P_((char *, int));
+static char *savestr P_((char *));
+static char *etags_strchr P_((const char *, int));
+static char *etags_strrchr P_((const char *, int));
+static char *etags_getcwd P_((void));
+static char *relative_filename P_((char *, char *));
+static char *absolute_filename P_((char *, char *));
+static char *absolute_dirname P_((char *, char *));
+static bool filename_is_absolute P_((char *f));
+static void canonicalize_filename P_((char *));
+static void grow_linebuffer P_((linebuffer *, int));
+static long *xmalloc P_((unsigned int));
+static long *xrealloc P_((char *, unsigned int));
\f
char searchar = '/'; /* use /.../ searches */
-int lineno; /* line number of current line */
-long charno; /* current character number */
-long linecharno; /* charno of start of line */
-
-char *curfile; /* current input file name */
char *tagfile; /* output file */
char *progname; /* name this program was invoked with */
char *cwd; /* current working directory */
char *tagfiledir; /* directory of tagfile */
-
FILE *tagf; /* ioptr for tags file */
-NODE *head; /* the head of the binary tree of tags */
-/*
- * A `struct linebuffer' is a structure which holds a line of text.
- * `readline' reads a line from a stream into a linebuffer and works
- * regardless of the length of the line.
- */
-#define GROW_LINEBUFFER(buf,toksize) \
-while (buf.size < toksize) \
- buf.buffer = (char *) xrealloc (buf.buffer, buf.size *= 2)
-struct linebuffer
-{
- long size;
- char *buffer;
-};
+char *curfile; /* current input file name */
+language *curlang; /* current language */
-struct linebuffer lb; /* the current line */
-struct linebuffer token_name; /* used by C_entries as a temporary area */
+int lineno; /* line number of current line */
+long charno; /* current character number */
+long linecharno; /* charno of start of current line */
+char *dbp; /* pointer to start of current tag */
+
+node *head; /* the head of the binary tree of tags */
+
+linebuffer lb; /* the current line */
+linebuffer token_name; /* used by C_entries as a temporary area */
struct
{
long linepos;
- struct linebuffer lb; /* used by C_entries instead of lb */
+ linebuffer lb; /* used by C_entries instead of lb */
} lbs[2];
/* boolean "functions" (see init) */
-logical _wht[0177], _etk[0177], _itk[0177], _btk[0177];
+bool _wht[CHARS], _nin[CHARS], _itk[CHARS], _btk[CHARS], _etk[CHARS];
char
/* white chars */
- *white = " \f\t\n\013",
+ *white = " \f\t\n\r\v",
+ /* not in a name */
+ *nonam = " \f\t\n\r(=,[;",
/* token ending chars */
- *endtk = " \t\n\013\"'#()[]{}=-+%*/&|^~!<>;,.:?",
+ *endtk = " \t\n\r\"'#()[]{}=-+%*/&|^~!<>;,.:?",
/* token starting chars */
*begtk = "ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz$~@",
/* valid in-token chars */
- *intk = "ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz$0123456789";
+ *midtk = "ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz$0123456789";
-logical append_to_tagfile; /* -a: append to tags */
-/* The following three default to TRUE for etags, but to FALSE for ctags. */
-logical typedefs; /* -t: create tags for typedefs */
-logical typedefs_and_cplusplus; /* -T: create tags for typedefs, level */
+bool append_to_tagfile; /* -a: append to tags */
+/* The following four default to TRUE for etags, but to FALSE for ctags. */
+bool typedefs; /* -t: create tags for C and Ada typedefs */
+bool typedefs_and_cplusplus; /* -T: create tags for C typedefs, level */
/* 0 struct/enum/union decls, and C++ */
/* member functions. */
-logical constantypedefs; /* -d: create tags for C #define and enum */
- /* constants. Enum consts not implemented. */
+bool constantypedefs; /* -d: create tags for C #define, enum */
+ /* constants and variables. */
/* -D: opposite of -d. Default under ctags. */
-logical update; /* -u: update tags */
-logical vgrind_style; /* -v: create vgrind style index output */
-logical no_warnings; /* -w: suppress warnings */
-logical cxref_style; /* -x: create cxref style output */
-logical cplusplus; /* .[hc] means C++, not C */
-logical noindentypedefs; /* -I: ignore indentation in C */
-
+bool declarations; /* --declarations: tag them and extern in C&Co*/
+bool globals; /* create tags for global variables */
+bool members; /* create tags for C member variables */
+bool update; /* -u: update tags */
+bool vgrind_style; /* -v: create vgrind style index output */
+bool no_warnings; /* -w: suppress warnings */
+bool cxref_style; /* -x: create cxref style output */
+bool cplusplus; /* .[hc] means C++, not C */
+bool noindentypedefs; /* -I: ignore indentation in C */
+bool packages_only; /* --packages-only: in Ada, only tag packages*/
+
+#ifdef LONG_OPTIONS
struct option longopts[] =
{
- { "append", no_argument, NULL, 'a' },
- { "backward-search", no_argument, NULL, 'B' },
- { "c++", no_argument, NULL, 'C' },
- { "cxref", no_argument, NULL, 'x' },
- { "defines", no_argument, NULL, 'd' },
- { "help", no_argument, NULL, 'h' },
- { "help", no_argument, NULL, 'H' },
- { "ignore-indentation", no_argument, NULL, 'I' },
- { "include", required_argument, NULL, 'i' },
- { "language", required_argument, NULL, 'l' },
- { "no-defines", no_argument, NULL, 'D' },
- { "no-regex", no_argument, NULL, 'R' },
- { "no-warn", no_argument, NULL, 'w' },
- { "output", required_argument, NULL, 'o' },
- { "regex", required_argument, NULL, 'r' },
- { "typedefs", no_argument, NULL, 't' },
- { "typedefs-and-c++", no_argument, NULL, 'T' },
- { "update", no_argument, NULL, 'u' },
- { "version", no_argument, NULL, 'V' },
- { "vgrind", no_argument, NULL, 'v' },
- { 0 }
+ { "packages-only", no_argument, &packages_only, TRUE },
+ { "append", no_argument, NULL, 'a' },
+ { "backward-search", no_argument, NULL, 'B' },
+ { "c++", no_argument, NULL, 'C' },
+ { "cxref", no_argument, NULL, 'x' },
+ { "defines", no_argument, NULL, 'd' },
+ { "declarations", no_argument, &declarations, TRUE },
+ { "no-defines", no_argument, NULL, 'D' },
+ { "globals", no_argument, &globals, TRUE },
+ { "no-globals", no_argument, &globals, FALSE },
+ { "help", no_argument, NULL, 'h' },
+ { "help", no_argument, NULL, 'H' },
+ { "ignore-indentation", no_argument, NULL, 'I' },
+ { "include", required_argument, NULL, 'i' },
+ { "language", required_argument, NULL, 'l' },
+ { "members", no_argument, &members, TRUE },
+ { "no-members", no_argument, &members, FALSE },
+ { "no-warn", no_argument, NULL, 'w' },
+ { "output", required_argument, NULL, 'o' },
+#ifdef ETAGS_REGEXPS
+ { "regex", required_argument, NULL, 'r' },
+ { "no-regex", no_argument, NULL, 'R' },
+ { "ignore-case-regex", required_argument, NULL, 'c' },
+#endif /* ETAGS_REGEXPS */
+ { "typedefs", no_argument, NULL, 't' },
+ { "typedefs-and-c++", no_argument, NULL, 'T' },
+ { "update", no_argument, NULL, 'u' },
+ { "version", no_argument, NULL, 'V' },
+ { "vgrind", no_argument, NULL, 'v' },
+ { NULL }
};
+#endif /* LONG_OPTIONS */
#ifdef ETAGS_REGEXPS
/* Structure defining a regular expression. Elements are
the compiled pattern, and the name string. */
-struct pattern
+typedef struct pattern
{
+ struct pattern *p_next;
+ language *language;
+ char *regex;
struct re_pattern_buffer *pattern;
struct re_registers regs;
char *name_pattern;
- logical error_signaled;
-};
+ bool error_signaled;
+} pattern;
-/* Number of regexps found. */
-int num_patterns = 0;
+/* List of all regexps. */
+pattern *p_head = NULL;
-/* Array of all regexps. */
-struct pattern *patterns = NULL;
+/* How many characters in the character set. (From regex.c.) */
+#define CHAR_SET_SIZE 256
+/* Translation table for case-insensitive matching. */
+char lc_trans[CHAR_SET_SIZE];
#endif /* ETAGS_REGEXPS */
+compressor compressors[] =
+{
+ { "z", "gzip -d -c"},
+ { "Z", "gzip -d -c"},
+ { "gz", "gzip -d -c"},
+ { "GZ", "gzip -d -c"},
+ { "bz2", "bzip2 -d -c" },
+ { NULL }
+};
+
/*
* Language stuff.
*/
/* Non-NULL if language fixed. */
-Lang_function *lang_func = NULL;
+language *forced_lang = NULL;
+
+/* Ada code */
+char *Ada_suffixes [] =
+ { "ads", "adb", "ada", NULL };
/* Assembly code */
char *Asm_suffixes [] = { "a", /* Unix assembler */
"inc", /* Microcontroller include files */
"ins", /* Microcontroller include files */
"s", "sa", /* Unix assembler */
+ "S", /* cpp-processed Unix assembler */
"src", /* BSO/Tasking C compiler output */
NULL
};
char *default_C_suffixes [] =
{ "c", "h", NULL };
-/* .M is for Objective C++ files. */
char *Cplusplus_suffixes [] =
- { "C", "H", "c++", "cc", "cpp", "cxx", "h++", "hh", "hpp", "hxx", "M", NULL};
+ { "C", "H", "c++", "cc", "cpp", "cxx", "h++", "hh", "hpp", "hxx",
+ "M", /* Objective C++ */
+ "pdb", /* Postscript with C syntax */
+ NULL };
+
+char *Cjava_suffixes [] =
+ { "java", NULL };
+
+char *Cobol_suffixes [] =
+ { "COB", "cob", NULL };
char *Cstar_suffixes [] =
{ "cs", "hs", NULL };
"lm", /* Objective lex file */
NULL };
+char *Postscript_suffixes [] =
+ { "ps", "psw", NULL }; /* .psw is for PSWrap */
+
char *Prolog_suffixes [] =
{ "prolog", NULL };
+char *Python_suffixes [] =
+ { "py", NULL };
+
/* Can't do the `SCM' or `scm' prefix with a version number. */
char *Scheme_suffixes [] =
- { "SCM", "SM", "oak", "sch", "scheme", "scm", "sm", "t", NULL };
+ { "SCM", "SM", "oak", "sch", "scheme", "scm", "sm", "ss", "t", NULL };
char *TeX_suffixes [] =
{ "TeX", "bib", "clo", "cls", "ltx", "sty", "tex", NULL };
char *Yacc_suffixes [] =
- { "y", "ym", NULL }; /* .ym is Objective yacc file */
+ { "y", "ym", "yy", "yxx", "y++", NULL }; /* .ym is Objective yacc file */
-/* Table of language names and corresponding functions, file suffixes
- and interpreter names.
- It is ok for a given function to be listed under more than one
- name. I just didn't. */
-struct lang_entry
-{
- char *name;
- Lang_function *function;
- char **suffixes;
- char **interpreters;
-};
+/*
+ * Table of languages.
+ *
+ * It is ok for a given function to be listed under more than one
+ * name. I just didn't.
+ */
-struct lang_entry lang_names [] =
+language lang_names [] =
{
- { "asm", Asm_labels, Asm_suffixes, NULL },
- { "c", default_C_entries, default_C_suffixes, NULL },
- { "c++", Cplusplus_entries, Cplusplus_suffixes, NULL },
- { "c*", Cstar_entries, Cstar_suffixes, NULL },
- { "erlang", Erlang_functions, Erlang_suffixes, NULL },
- { "fortran", Fortran_functions, Fortran_suffixes, NULL },
- { "lisp", Lisp_functions, Lisp_suffixes, NULL },
- { "pascal", Pascal_functions, Pascal_suffixes, NULL },
- { "perl", Perl_functions, Perl_suffixes, Perl_interpreters },
- { "proc", plain_C_entries, plain_C_suffixes, NULL },
- { "prolog", Prolog_functions, Prolog_suffixes, NULL },
- { "scheme", Scheme_functions, Scheme_suffixes, NULL },
- { "tex", TeX_functions, TeX_suffixes, NULL },
- { "yacc", Yacc_entries, Yacc_suffixes, NULL },
+ { "ada", Ada_funcs, Ada_suffixes, NULL },
+ { "asm", Asm_labels, Asm_suffixes, NULL },
+ { "c", default_C_entries, default_C_suffixes, NULL },
+ { "c++", Cplusplus_entries, Cplusplus_suffixes, NULL },
+ { "c*", Cstar_entries, Cstar_suffixes, NULL },
+ { "cobol", Cobol_paragraphs, Cobol_suffixes, NULL },
+ { "erlang", Erlang_functions, Erlang_suffixes, NULL },
+ { "fortran", Fortran_functions, Fortran_suffixes, NULL },
+ { "java", Cjava_entries, Cjava_suffixes, NULL },
+ { "lisp", Lisp_functions, Lisp_suffixes, NULL },
+ { "pascal", Pascal_functions, Pascal_suffixes, NULL },
+ { "perl", Perl_functions, Perl_suffixes, Perl_interpreters },
+ { "postscript", Postscript_functions, Postscript_suffixes, NULL },
+ { "proc", plain_C_entries, plain_C_suffixes, NULL },
+ { "prolog", Prolog_functions, Prolog_suffixes, NULL },
+ { "python", Python_functions, Python_suffixes, NULL },
+ { "scheme", Scheme_functions, Scheme_suffixes, NULL },
+ { "tex", TeX_functions, TeX_suffixes, NULL },
+ { "yacc", Yacc_entries, Yacc_suffixes, NULL },
{ "auto", NULL }, /* default guessing scheme */
{ "none", just_read_file }, /* regexp matching only */
{ NULL, NULL } /* end of list */
};
-
\f
-void
+static void
print_language_names ()
{
- struct lang_entry *lang;
+ language *lang;
char **ext;
puts ("\nThese are the currently supported languages, along with the\n\
If no language is specified and no matching suffix is found,\n\
the first line of the file is read for a sharp-bang (#!) sequence\n\
followed by the name of an interpreter. If no such sequence is found,\n\
-Fortran is tried first; if no tags are found, C is tried next.");
+Fortran is tried first; if no tags are found, C is tried next.\n\
+Compressed files are supported using gzip and bzip2.");
}
+#ifndef EMACS_NAME
+# define EMACS_NAME "GNU Emacs"
+#endif
#ifndef VERSION
-# define VERSION "19"
+# define VERSION "21"
#endif
-void
+static void
print_version ()
{
- printf ("%s for Emacs version %s\n", (CTAGS) ? "ctags" : "etags", VERSION);
+ printf ("%s (%s %s)\n", (CTAGS) ? "ctags" : "etags", EMACS_NAME, VERSION);
+ puts ("Copyright (C) 1999 Free Software Foundation, Inc. and Ken Arnold");
+ puts ("This program is distributed under the same terms as Emacs");
exit (GOOD);
}
-void
+static void
print_help ()
{
- printf ("These are the options accepted by %s. You may use unambiguous\n\
-abbreviations for the long option names. A - as file name means read\n\
-names from stdin.", progname);
+ printf ("Usage: %s [options] [[regex-option ...] file-name] ...\n\
+\n\
+These are the options accepted by %s.\n", progname, progname);
+#ifdef LONG_OPTIONS
+ puts ("You may use unambiguous abbreviations for the long option names.");
+#else
+ puts ("Long option names do not work with this executable, as it is not\n\
+linked with GNU getopt.");
+#endif /* LONG_OPTIONS */
+ puts ("A - as file name means read names from stdin (one per line).");
if (!CTAGS)
- printf (" Absolute names are stored in the output file as they\n\
-are. Relative ones are stored relative to the output file's directory.");
+ printf (" Absolute names are stored in the output file as they are.\n\
+Relative ones are stored relative to the output file's directory.");
puts ("\n");
puts ("-a, --append\n\
Append tag entries to existing tags file.");
+ puts ("--packages-only\n\
+ For Ada files, only generate tags for packages .");
+
if (CTAGS)
puts ("-B, --backward-search\n\
Write the search commands for the tag entries using '?', the\n\
puts ("-C, --c++\n\
Treat files whose name suffix defaults to C language as C++ files.");
+ puts ("--declarations\n\
+ In C and derived languages, create tags for function declarations,");
+ if (CTAGS)
+ puts ("\tand create tags for extern variables if --globals is used.");
+ else
+ puts
+ ("\tand create tags for extern variables unless --no-globals is used.");
+
if (CTAGS)
puts ("-d, --defines\n\
- Create tag entries for constant C #defines, too.");
+ Create tag entries for C #define constants and enum constants, too.");
else
puts ("-D, --no-defines\n\
- Don't create tag entries for constant C #defines. This makes\n\
- the tags file smaller.");
+ Don't create tag entries for C #define constants and enum constants.\n\
+ This makes the tags file smaller.");
if (!CTAGS)
{
named language up to the next --language=LANG option.");
}
+ if (CTAGS)
+ puts ("--globals\n\
+ Create tag entries for global variables in some languages.");
+ else
+ puts ("--no-globals\n\
+ Do not create tag entries for global variables in some\n\
+ languages. This makes the tags file smaller.");
+ puts ("--members\n\
+ Create tag entries for member variables in C and derived languages.");
+
#ifdef ETAGS_REGEXPS
- puts ("-r /REGEXP/, --regex=/REGEXP/\n\
- Make a tag for each line matching pattern REGEXP in the\n\
- following files. REGEXP is anchored (as if preceded by ^).\n\
- The form /REGEXP/NAME/ creates a named tag. For example Tcl\n\
- named tags can be created with:\n\
+ puts ("-r /REGEXP/, --regex=/REGEXP/ or --regex=@regexfile\n\
+ Make a tag for each line matching pattern REGEXP in the following\n\
+ files. {LANGUAGE}/REGEXP/ uses REGEXP for LANGUAGE files only.\n\
+ regexfile is a file containing one REGEXP per line.\n\
+ REGEXP is anchored (as if preceded by ^).\n\
+ The form /REGEXP/NAME/ creates a named tag.\n\
+ For example Tcl named tags can be created with:\n\
--regex=/proc[ \\t]+\\([^ \\t]+\\)/\\1/.");
+ puts ("-c /REGEXP/, --ignore-case-regex=/REGEXP/ or --ignore-case-regex=@regexfile\n\
+ Like -r, --regex but ignore case when matching expressions.");
puts ("-R, --no-regex\n\
Don't create tags from regexps for the following files.");
#endif /* ETAGS_REGEXPS */
if (CTAGS)
{
puts ("-t, --typedefs\n\
- Generate tag entries for C typedefs.");
+ Generate tag entries for C and Ada typedefs.");
puts ("-T, --typedefs-and-c++\n\
Generate tag entries for C typedefs, C struct/enum/union tags,\n\
and C++ member functions.");
print_language_names ();
+ puts ("");
+ puts ("Report bugs to bug-gnu-emacs@gnu.org");
+
exit (GOOD);
}
{
at_language,
at_regexp,
- at_filename
+ at_filename,
+ at_icregexp
};
-/* This structure helps us allow mixing of --lang and filenames. */
+/* This structure helps us allow mixing of --lang and file names. */
typedef struct
{
enum argument_type arg_type;
char *what;
- Lang_function *function;
+ language *lang; /* language of the regexp */
} argument;
#ifdef VMS /* VMS specific functions */
/*
v1.05 nmm 26-Jun-86 fn_exp - expand specification of list of file names
- returning in each successive call the next filename matching the input
+ returning in each successive call the next file name matching the input
spec. The function expects that each in_spec passed
to it will be processed to completion; in particular, up to and
including the call following that in which the last matching name
If an error occurs, on return out_spec contains the value
of in_spec when the error occurred.
- With each successive filename returned in out_spec, the
+ With each successive file name returned in out_spec, the
function's return value is one. When there are no more matching
names the function returns zero. If on the first call no file
matches in_spec, or there is any other error, -1 is returned.
#include <rmsdef.h>
#include <descrip.h>
#define OUTSIZE MAX_FILE_SPEC_LEN
-short
+static short
fn_exp (out, in)
vspec *out;
char *in;
static long context = 0;
static struct dsc$descriptor_s o;
static struct dsc$descriptor_s i;
- static logical pass1 = TRUE;
+ static bool pass1 = TRUE;
long status;
short retval;
v1.01 nmm 19-Aug-85 gfnames - return in successive calls the
name of each file specified by the provided arg expanding wildcards.
*/
-char *
+static char *
gfnames (arg, p_error)
char *arg;
- logical *p_error;
+ bool *p_error;
{
static vspec filename = {MAX_FILE_SPEC_LEN, "\0"};
system (cmd)
char *cmd;
{
- fprintf (stderr, "system() function not implemented under VMS\n");
+ error ("%s", "system() function not implemented under VMS");
}
#endif
char *argv[];
{
int i;
- unsigned int nincluded_files = 0;
- char **included_files = xnew (argc, char *);
+ unsigned int nincluded_files;
+ char **included_files;
char *this_file;
argument *argbuffer;
- int current_arg = 0, file_count = 0;
- struct linebuffer filename_lb;
+ int current_arg, file_count;
+ linebuffer filename_lb;
#ifdef VMS
- logical got_err;
+ bool got_err;
#endif
#ifdef DOS_NT
#endif /* DOS_NT */
progname = argv[0];
+ nincluded_files = 0;
+ included_files = xnew (argc, char *);
+ current_arg = 0;
+ file_count = 0;
/* Allocate enough no matter what happens. Overkill, but each one
is small. */
#ifdef ETAGS_REGEXPS
/* Set syntax for regular expression routines. */
- re_set_syntax (RE_SYNTAX_EMACS);
+ re_set_syntax (RE_SYNTAX_EMACS | RE_INTERVALS);
+ /* Translation table for case-insensitive search. */
+ for (i = 0; i < CHAR_SET_SIZE; i++)
+ lc_trans[i] = lowcase (i);
#endif /* ETAGS_REGEXPS */
/*
* If etags, always find typedefs and structure tags. Why not?
- * Also default is to find macro constants.
+ * Also default is to find macro constants, enum constants and
+ * global variables.
*/
if (!CTAGS)
- typedefs = typedefs_and_cplusplus = constantypedefs = TRUE;
+ {
+ typedefs = typedefs_and_cplusplus = constantypedefs = TRUE;
+ globals = TRUE;
+ members = FALSE;
+ }
while (1)
{
- int opt = getopt_long (argc, argv,
- "-aCdDf:Il:o:r:RStTi:BuvxwVhH", longopts, 0);
+ int opt;
+ char *optstring;
+
+#ifdef ETAGS_REGEXPS
+ optstring = "-aCdDf:Il:o:r:c:RStTi:BuvxwVhH";
+#else
+ optstring = "-aCdDf:Il:o:StTi:BuvxwVhH";
+#endif /* ETAGS_REGEXPS */
+
+#ifndef LONG_OPTIONS
+ optstring = optstring + 1;
+#endif /* LONG_OPTIONS */
+ opt = getopt_long (argc, argv, optstring, longopts, 0);
if (opt == EOF)
break;
break;
case 1:
- /* This means that a filename has been seen. Record it. */
+ /* This means that a file name has been seen. Record it. */
argbuffer[current_arg].arg_type = at_filename;
argbuffer[current_arg].what = optarg;
++current_arg;
break;
/* Common options. */
- case 'a':
- append_to_tagfile = TRUE;
- break;
- case 'C':
- cplusplus = TRUE;
- break;
- case 'd':
- constantypedefs = TRUE;
- break;
- case 'D':
- constantypedefs = FALSE;
- break;
+ case 'a': append_to_tagfile = TRUE; break;
+ case 'C': cplusplus = TRUE; break;
+ case 'd': constantypedefs = TRUE; break;
+ case 'D': constantypedefs = FALSE; break;
case 'f': /* for compatibility with old makefiles */
case 'o':
if (tagfile)
{
- fprintf (stderr, "%s: -%c option may only be given once.\n",
- progname, opt);
+ error ("-o option may only be given once.", (char *)NULL);
suggest_asking_for_help ();
}
tagfile = optarg;
noindentypedefs = TRUE;
break;
case 'l':
- argbuffer[current_arg].function = get_language_from_name (optarg);
- argbuffer[current_arg].arg_type = at_language;
- ++current_arg;
+ {
+ language *lang = get_language_from_name (optarg);
+ if (lang != NULL)
+ {
+ argbuffer[current_arg].lang = lang;
+ argbuffer[current_arg].arg_type = at_language;
+ ++current_arg;
+ }
+ }
break;
#ifdef ETAGS_REGEXPS
case 'r':
argbuffer[current_arg].what = NULL;
++current_arg;
break;
+ case 'c':
+ argbuffer[current_arg].arg_type = at_icregexp;
+ argbuffer[current_arg].what = optarg;
+ ++current_arg;
+ break;
#endif /* ETAGS_REGEXPS */
case 'V':
print_version ();
break;
#else /* CTAGS */
/* Ctags options. */
- case 'B':
- searchar = '?';
- break;
- case 'u':
- update = TRUE;
- break;
- case 'v':
- vgrind_style = TRUE;
- /*FALLTHRU*/
- case 'x':
- cxref_style = TRUE;
- break;
- case 'w':
- no_warnings = TRUE;
- break;
+ case 'B': searchar = '?'; break;
+ case 'u': update = TRUE; break;
+ case 'v': vgrind_style = TRUE; /*FALLTHRU*/
+ case 'x': cxref_style = TRUE; break;
+ case 'w': no_warnings = TRUE; break;
#endif /* CTAGS */
default:
suggest_asking_for_help ();
if (nincluded_files == 0 && file_count == 0)
{
- fprintf (stderr, "%s: No input files specified.\n", progname);
+ error ("no input files specified.", (char *)NULL);
suggest_asking_for_help ();
}
tagfile = CTAGS ? "tags" : "TAGS";
cwd = etags_getcwd (); /* the current working directory */
if (cwd[strlen (cwd) - 1] != '/')
- cwd = concat (cwd, "/", "");
+ {
+ char *oldcwd = cwd;
+ cwd = concat (oldcwd, "/", "");
+ free (oldcwd);
+ }
if (streq (tagfile, "-"))
tagfiledir = cwd;
else
switch (argbuffer[i].arg_type)
{
case at_language:
- lang_func = argbuffer[i].function;
+ forced_lang = argbuffer[i].lang;
break;
#ifdef ETAGS_REGEXPS
case at_regexp:
- add_regex (argbuffer[i].what);
+ analyse_regex (argbuffer[i].what, FALSE);
+ break;
+ case at_icregexp:
+ analyse_regex (argbuffer[i].what, TRUE);
break;
#endif
case at_filename:
{
if (got_err)
{
- error ("Can't find file %s\n", this_file);
+ error ("can't find file %s\n", this_file);
argc--, argv++;
}
else
this_file = argbuffer[i].what;
#endif
/* Input file named "-" means read file names from stdin
- and use them. */
+ (one per line) and use them. */
if (streq (this_file, "-"))
while (readline_internal (&filename_lb, stdin) > 0)
process_file (filename_lb.buffer);
}
}
+#ifdef ETAGS_REGEXPS
+ free_patterns ();
+#endif /* ETAGS_REGEXPS */
+
if (!CTAGS)
{
while (nincluded_files-- > 0)
because we want them ordered. Let's do it now. */
if (cxref_style)
{
- tagf = fopen (tagfile, append_to_tagfile ? "a" : "w");
- if (tagf == NULL)
- pfatal (tagfile);
put_entries (head);
+ free_tree (head);
+ head = NULL;
exit (GOOD);
}
"mv %s OTAGS;fgrep -v '\t%s\t' OTAGS >%s;rm OTAGS",
tagfile, argbuffer[i].what, tagfile);
if (system (cmd) != GOOD)
- fatal ("failed to execute shell command");
+ fatal ("failed to execute shell command", (char *)NULL);
}
append_to_tagfile = TRUE;
}
if (tagf == NULL)
pfatal (tagfile);
put_entries (head);
+ free_tree (head);
+ head = NULL;
fclose (tagf);
if (update)
sprintf (cmd, "sort %s -o %s", tagfile, tagfile);
exit (system (cmd));
}
- exit (GOOD);
+ return GOOD;
+}
+
+
+
+/*
+ * Return a compressor given the file name. If EXTPTR is non-zero,
+ * return a pointer into FILE where the compressor-specific
+ * extension begins. If no compressor is found, NULL is returned
+ * and EXTPTR is not significant.
+ * Idea by Vladimir Alexiev <vladimir@cs.ualberta.ca>
+ */
+static compressor *
+get_compressor_from_suffix (file, extptr)
+ char *file;
+ char **extptr;
+{
+ compressor *compr;
+ char *slash, *suffix;
+
+ /* This relies on FN to be after canonicalize_filename,
+ so we don't need to consider backslashes on DOS_NT. */
+ slash = etags_strrchr (file, '/');
+ suffix = etags_strrchr (file, '.');
+ if (suffix == NULL || suffix < slash)
+ return NULL;
+ if (extptr != NULL)
+ *extptr = suffix;
+ suffix += 1;
+ /* Let those poor souls who live with DOS 8+3 file name limits get
+ some solace by treating foo.cgz as if it were foo.c.gz, etc.
+ Only the first do loop is run if not MSDOS */
+ do
+ {
+ for (compr = compressors; compr->suffix != NULL; compr++)
+ if (streq (compr->suffix, suffix))
+ return compr;
+ if (!MSDOS)
+ break; /* do it only once: not really a loop */
+ if (extptr != NULL)
+ *extptr = ++suffix;
+ } while (*suffix != '\0');
+ return NULL;
}
+
/*
- * Return a Lang_function given the name.
+ * Return a language given the name.
*/
-Lang_function *
+static language *
get_language_from_name (name)
char *name;
{
- struct lang_entry *lang;
+ language *lang;
- if (name != NULL)
- for (lang = lang_names; lang->name != NULL; lang++)
- {
+ if (name == NULL)
+ error ("empty language name", (char *)NULL);
+ else
+ {
+ for (lang = lang_names; lang->name != NULL; lang++)
if (streq (name, lang->name))
- return lang->function;
- }
-
- fprintf (stderr, "%s: language \"%s\" not recognized.\n",
- progname, optarg);
- suggest_asking_for_help ();
+ return lang;
+ error ("unknown language \"%s\"", name);
+ }
- /* This point should never be reached. The function should either
- return a function pointer or never return. Note that a NULL
- pointer cannot be considered as an error, as it means that the
- language has not been explicitely imposed by the user ("auto"). */
- return NULL; /* avoid warnings from compiler */
+ return NULL;
}
/*
- * Return a Lang_function given the interpreter name.
+ * Return a language given the interpreter name.
*/
-Lang_function *
+static language *
get_language_from_interpreter (interpreter)
char *interpreter;
{
- struct lang_entry *lang;
+ language *lang;
char **iname;
if (interpreter == NULL)
if (lang->interpreters != NULL)
for (iname = lang->interpreters; *iname != NULL; iname++)
if (streq (*iname, interpreter))
- return lang->function;
+ return lang;
return NULL;
}
/*
- * Return a Lang_function given the file suffix.
+ * Return a language given the file name.
*/
-Lang_function *
-get_language_from_suffix (suffix)
- char *suffix;
+static language *
+get_language_from_suffix (file)
+ char *file;
{
- struct lang_entry *lang;
- char **ext;
+ language *lang;
+ char **ext, *suffix;
+ suffix = etags_strrchr (file, '.');
if (suffix == NULL)
return NULL;
+ suffix += 1;
for (lang = lang_names; lang->name != NULL; lang++)
if (lang->suffixes != NULL)
for (ext = lang->suffixes; *ext != NULL; ext++)
if (streq (*ext, suffix))
- return lang->function;
-
+ return lang;
return NULL;
}
+
/*
* This routine is called on each file argument.
*/
-void
+static void
process_file (file)
char *file;
{
struct stat stat_buf;
FILE *inf;
-#ifdef DOS_NT
- char *p;
+ compressor *compr;
+ char *compressed_name, *uncompressed_name;
+ char *ext, *real_name;
- for (p = file; *p != '\0'; p++)
- if (*p == '\\')
- *p = '/';
-#endif
- if (stat (file, &stat_buf) == 0 && !S_ISREG (stat_buf.st_mode))
+ canonicalize_filename (file);
+ if (streq (file, tagfile) && !streq (tagfile, "-"))
{
- fprintf (stderr, "Skipping %s: it is not a regular file.\n", file);
+ error ("skipping inclusion of %s in self.", file);
return;
}
- if (streq (file, tagfile) && !streq (tagfile, "-"))
+ if ((compr = get_compressor_from_suffix (file, &ext)) == NULL)
{
- fprintf (stderr, "Skipping inclusion of %s in self.\n", file);
- return;
+ compressed_name = NULL;
+ real_name = uncompressed_name = savestr (file);
+ }
+ else
+ {
+ real_name = compressed_name = savestr (file);
+ uncompressed_name = savenstr (file, ext - file);
+ }
+
+ /* If the canonicalised uncompressed name has already be dealt with,
+ skip it silently, else add it to the list. */
+ {
+ typedef struct processed_file
+ {
+ char *filename;
+ struct processed_file *next;
+ } processed_file;
+ static processed_file *pf_head = NULL;
+ register processed_file *fnp;
+
+ for (fnp = pf_head; fnp != NULL; fnp = fnp->next)
+ if (streq (uncompressed_name, fnp->filename))
+ goto exit;
+ fnp = pf_head;
+ pf_head = xnew (1, struct processed_file);
+ pf_head->filename = savestr (uncompressed_name);
+ pf_head->next = fnp;
+ }
+
+ if (stat (real_name, &stat_buf) != 0)
+ {
+ /* Reset real_name and try with a different name. */
+ real_name = NULL;
+ if (compressed_name != NULL) /* try with the given suffix */
+ {
+ if (stat (uncompressed_name, &stat_buf) == 0)
+ real_name = uncompressed_name;
+ }
+ else /* try all possible suffixes */
+ {
+ for (compr = compressors; compr->suffix != NULL; compr++)
+ {
+ compressed_name = concat (file, ".", compr->suffix);
+ if (stat (compressed_name, &stat_buf) != 0)
+ {
+ if (MSDOS)
+ {
+ char *suf = compressed_name + strlen (file);
+ size_t suflen = strlen (compr->suffix) + 1;
+ for ( ; suf[1]; suf++, suflen--)
+ {
+ memmove (suf, suf + 1, suflen);
+ if (stat (compressed_name, &stat_buf) == 0)
+ {
+ real_name = compressed_name;
+ break;
+ }
+ }
+ if (real_name != NULL)
+ break;
+ } /* MSDOS */
+ free (compressed_name);
+ compressed_name = NULL;
+ }
+ else
+ {
+ real_name = compressed_name;
+ break;
+ }
+ }
+ }
+ if (real_name == NULL)
+ {
+ perror (file);
+ goto exit;
+ }
+ } /* try with a different name */
+
+ if (!S_ISREG (stat_buf.st_mode))
+ {
+ error ("skipping %s: it is not a regular file.", real_name);
+ goto exit;
+ }
+ if (real_name == compressed_name)
+ {
+ char *cmd = concat (compr->command, " ", real_name);
+ inf = popen (cmd, "r");
+ free (cmd);
}
- inf = fopen (file, "r");
+ else
+ inf = fopen (real_name, "r");
if (inf == NULL)
{
- perror (file);
- return;
+ perror (real_name);
+ goto exit;
}
- find_entries (file, inf);
+ find_entries (uncompressed_name, inf);
+
+ if (real_name == compressed_name)
+ pclose (inf);
+ else
+ fclose (inf);
if (!CTAGS)
{
char *filename;
- if (absolutefn (file))
+ if (filename_is_absolute (uncompressed_name))
{
- /* file is an absolute filename. Canonicalise it. */
- filename = absolute_filename (file, cwd);
+ /* file is an absolute file name. Canonicalise it. */
+ filename = absolute_filename (uncompressed_name, cwd);
}
else
{
- /* file is a filename relative to cwd. Make it relative
+ /* file is a file name relative to cwd. Make it relative
to the directory of the tags file. */
- filename = relative_filename (file, tagfiledir);
+ filename = relative_filename (uncompressed_name, tagfiledir);
}
fprintf (tagf, "\f\n%s,%d\n", filename, total_size_of_entries (head));
free (filename);
free_tree (head);
head = NULL;
}
+
+ exit:
+ if (compressed_name) free(compressed_name);
+ if (uncompressed_name) free(uncompressed_name);
+ return;
}
/*
* This routine sets up the boolean pseudo-functions which work
- * by setting boolean flags dependent upon the corresponding character
+ * by setting boolean flags dependent upon the corresponding character.
* Every char which is NOT in that string is not a white char. Therefore,
* all of the array "_wht" is set to FALSE, and then the elements
* subscripted by the chars in "white" are set to TRUE. Thus "_wht"
* of a char is TRUE if it is the string "white", else FALSE.
*/
-void
+static void
init ()
{
register char *sp;
register int i;
- for (i = 0; i < 0177; i++)
- _wht[i] = _etk[i] = _itk[i] = _btk[i] = FALSE;
- for (sp = white; *sp; sp++)
- _wht[*sp] = TRUE;
- for (sp = endtk; *sp; sp++)
- _etk[*sp] = TRUE;
- for (sp = intk; *sp; sp++)
- _itk[*sp] = TRUE;
- for (sp = begtk; *sp; sp++)
- _btk[*sp] = TRUE;
- _wht[0] = _wht['\n'];
- _etk[0] = _etk['\n'];
- _btk[0] = _btk['\n'];
- _itk[0] = _itk['\n'];
+ for (i = 0; i < CHARS; i++)
+ iswhite(i) = notinname(i) = begtoken(i) = intoken(i) = endtoken(i) = FALSE;
+ for (sp = white; *sp != '\0'; sp++) iswhite (*sp) = TRUE;
+ for (sp = nonam; *sp != '\0'; sp++) notinname (*sp) = TRUE;
+ notinname('\0') = notinname('\n');
+ for (sp = begtk; *sp != '\0'; sp++) begtoken (*sp) = TRUE;
+ begtoken('\0') = begtoken('\n');
+ for (sp = midtk; *sp != '\0'; sp++) intoken (*sp) = TRUE;
+ intoken('\0') = intoken('\n');
+ for (sp = endtk; *sp != '\0'; sp++) endtoken (*sp) = TRUE;
+ endtoken('\0') = endtoken('\n');
}
/*
* This routine opens the specified file and calls the function
* which finds the function and type definitions.
*/
-void
+node *last_node = NULL;
+
+static void
find_entries (file, inf)
char *file;
FILE *inf;
{
char *cp;
- Lang_function *function;
- NODE *old_last_node;
- extern NODE *last_node;
-
-
- /* Memory leakage here: the memory block pointed by curfile is never
- released. The amount of memory leaked here is the sum of the
- lengths of the input file names. */
+ language *lang;
+ node *old_last_node;
+
+ /* Memory leakage here: the string pointed by curfile is
+ never released, because curfile is copied into np->file
+ for each node, to be used in CTAGS mode. The amount of
+ memory leaked here is the sum of the lengths of the
+ file names. */
curfile = savestr (file);
/* If user specified a language, use it. */
- function = lang_func;
- if (function != NULL)
+ lang = forced_lang;
+ if (lang != NULL && lang->function != NULL)
{
- function (inf);
- fclose (inf);
+ curlang = lang;
+ lang->function (inf);
return;
}
- cp = etags_strrchr (file, '.');
- if (cp != NULL)
+ /* Try to guess the language given the file name. */
+ lang = get_language_from_suffix (file);
+ if (lang != NULL && lang->function != NULL)
{
- cp += 1;
- function = get_language_from_suffix (cp);
- if (function != NULL)
- {
- function (inf);
- fclose (inf);
- return;
- }
+ curlang = lang;
+ lang->function (inf);
+ return;
}
/* Look for sharp-bang as the first two characters. */
- if (readline_internal (&lb, inf) > 2
+ if (readline_internal (&lb, inf) > 0
+ && lb.len >= 2
&& lb.buffer[0] == '#'
&& lb.buffer[1] == '!')
{
if (lp != NULL)
lp += 1;
else
- for (lp = lb.buffer+2; *lp != '\0' && isspace (*lp); lp++)
- continue;
- for (cp = lp; *cp != '\0' && !isspace (*cp); cp++)
- continue;
+ lp = skip_spaces (lb.buffer + 2);
+ cp = skip_non_spaces (lp);
*cp = '\0';
if (strlen (lp) > 0)
{
- function = get_language_from_interpreter (lp);
- if (function != NULL)
+ lang = get_language_from_interpreter (lp);
+ if (lang != NULL && lang->function != NULL)
{
- function (inf);
- fclose (inf);
+ curlang = lang;
+ lang->function (inf);
return;
}
}
}
+ /* We rewind here, even if inf may be a pipe. We fail if the
+ length of the first line is longer than the pipe block size,
+ which is unlikely. */
rewind (inf);
/* Try Fortran. */
old_last_node = last_node;
+ curlang = get_language_from_name ("fortran");
Fortran_functions (inf);
/* No Fortran entries found. Try C. */
if (old_last_node == last_node)
{
+ /* We do not tag if rewind fails.
+ Only the file name will be recorded in the tags file. */
rewind (inf);
+ curlang = get_language_from_name (cplusplus ? "c++" : "c");
default_C_entries (inf);
}
- fclose (inf);
return;
}
\f
/* Record a tag. */
-void
+static void
pfnote (name, is_func, linestart, linelen, lno, cno)
char *name; /* tag name, or NULL if unnamed */
- logical is_func; /* tag is a function */
+ bool is_func; /* tag is a function */
char *linestart; /* start of the line where tag is */
int linelen; /* length of the line where tag is */
int lno; /* line number */
long cno; /* character number */
{
- register NODE *np;
+ register node *np;
if (CTAGS && name == NULL)
return;
- np = xnew (1, NODE);
+ np = xnew (1, node);
/* If ctags mode, change name "main" to M<thisfilename>. */
if (CTAGS && !cxref_style && streq (name, "main"))
{
register char *fp = etags_strrchr (curfile, '/');
- np->name = concat ("M", fp == 0 ? curfile : fp + 1, "");
+ np->name = concat ("M", fp == NULL ? curfile : fp + 1, "");
fp = etags_strrchr (np->name, '.');
- if (fp && fp[1] != '\0' && fp[2] == '\0')
- fp[0] = 0;
+ if (fp != NULL && fp[1] != '\0' && fp[2] == '\0')
+ fp[0] = '\0';
}
else
np->name = name;
add_node (np, &head);
}
+/* Date: Wed, 22 Jan 1997 02:56:31 -0500 [last amended 18 Sep 1997]
+ * From: Sam Kendall <kendall@mv.mv.com>
+ * Subject: Proposal for firming up the TAGS format specification
+ * To: F.Potorti@cnuce.cnr.it
+ *
+ * pfnote should emit the optimized form [unnamed tag] only if:
+ * 1. name does not contain any of the characters " \t\r\n(),;";
+ * 2. linestart contains name as either a rightmost, or rightmost but
+ * one character, substring;
+ * 3. the character, if any, immediately before name in linestart must
+ * be one of the characters " \t(),;";
+ * 4. the character, if any, immediately after name in linestart must
+ * also be one of the characters " \t(),;".
+ *
+ * The real implementation uses the notinname() macro, which recognises
+ * characters slightly different form " \t\r\n(),;". See the variable
+ * `nonam'.
+ */
+#define traditional_tag_style TRUE
+static void
+new_pfnote (name, namelen, is_func, linestart, linelen, lno, cno)
+ char *name; /* tag name, or NULL if unnamed */
+ int namelen; /* tag length */
+ bool is_func; /* tag is a function */
+ char *linestart; /* start of the line where tag is */
+ int linelen; /* length of the line where tag is */
+ int lno; /* line number */
+ long cno; /* character number */
+{
+ register char *cp;
+ bool named;
+
+ named = TRUE;
+ if (!CTAGS)
+ {
+ for (cp = name; !notinname (*cp); cp++)
+ continue;
+ if (*cp == '\0') /* rule #1 */
+ {
+ cp = linestart + linelen - namelen;
+ if (notinname (linestart[linelen-1]))
+ cp -= 1; /* rule #4 */
+ if (cp >= linestart /* rule #2 */
+ && (cp == linestart
+ || notinname (cp[-1])) /* rule #3 */
+ && strneq (name, cp, namelen)) /* rule #2 */
+ named = FALSE; /* use unnamed tag */
+ }
+ }
+
+ if (named)
+ name = savenstr (name, namelen);
+ else
+ name = NULL;
+ pfnote (name, is_func, linestart, linelen, lno, cno);
+}
+
/*
* free_tree ()
* recurse on left children, iterate on right children.
*/
-void
-free_tree (node)
- register NODE *node;
+static void
+free_tree (np)
+ register node *np;
{
- while (node)
+ while (np)
{
- register NODE *node_right = node->right;
- free_tree (node->left);
- if (node->name != NULL)
- free (node->name);
- free (node->pat);
- free ((char *) node);
- node = node_right;
+ register node *node_right = np->right;
+ free_tree (np->left);
+ if (np->name != NULL)
+ free (np->name);
+ free (np->pat);
+ free (np);
+ np = node_right;
}
}
* add_node is the only function allowed to add nodes, so it can
* maintain state.
*/
-NODE *last_node = NULL;
-void
-add_node (node, cur_node_p)
- NODE *node, **cur_node_p;
+static void
+add_node (np, cur_node_p)
+ node *np, **cur_node_p;
{
register int dif;
- register NODE *cur_node = *cur_node_p;
+ register node *cur_node = *cur_node_p;
if (cur_node == NULL)
{
- *cur_node_p = node;
- last_node = node;
+ *cur_node_p = np;
+ last_node = np;
return;
}
{
/* Etags Mode */
if (last_node == NULL)
- fatal ("internal error in add_node", 0);
- last_node->right = node;
- last_node = node;
+ fatal ("internal error in add_node", (char *)NULL);
+ last_node->right = np;
+ last_node = np;
}
else
{
/* Ctags Mode */
- dif = strcmp (node->name, cur_node->name);
+ dif = strcmp (np->name, cur_node->name);
/*
* If this tag name matches an existing one, then
*/
if (!dif)
{
- if (streq (node->file, cur_node->file))
+ if (streq (np->file, cur_node->file))
{
if (!no_warnings)
{
fprintf (stderr, "Duplicate entry in file %s, line %d: %s\n",
- node->file, lineno, node->name);
+ np->file, lineno, np->name);
fprintf (stderr, "Second entry ignored\n");
}
}
fprintf
(stderr,
"Duplicate entry in files %s and %s: %s (Warning only)\n",
- node->file, cur_node->file, node->name);
+ np->file, cur_node->file, np->name);
cur_node->been_warned = TRUE;
}
return;
}
/* Actually add the node */
- add_node (node, dif < 0 ? &cur_node->left : &cur_node->right);
+ add_node (np, dif < 0 ? &cur_node->left : &cur_node->right);
}
}
\f
-void
-put_entries (node)
- register NODE *node;
+static void
+put_entries (np)
+ register node *np;
{
register char *sp;
- if (node == NULL)
+ if (np == NULL)
return;
/* Output subentries that precede this one */
- put_entries (node->left);
+ put_entries (np->left);
/* Output this entry */
if (!CTAGS)
{
- if (node->name != NULL)
- fprintf (tagf, "%s\177%s\001%d,%d\n",
- node->pat, node->name, node->lno, node->cno);
+ if (np->name != NULL)
+ fprintf (tagf, "%s\177%s\001%d,%ld\n",
+ np->pat, np->name, np->lno, np->cno);
else
- fprintf (tagf, "%s\177%d,%d\n",
- node->pat, node->lno, node->cno);
+ fprintf (tagf, "%s\177%d,%ld\n",
+ np->pat, np->lno, np->cno);
}
else
{
- if (node->name == NULL)
- error ("internal error: NULL name in ctags mode.", 0);
+ if (np->name == NULL)
+ error ("internal error: NULL name in ctags mode.", (char *)NULL);
if (cxref_style)
{
if (vgrind_style)
fprintf (stdout, "%s %s %d\n",
- node->name, node->file, (node->lno + 63) / 64);
+ np->name, np->file, (np->lno + 63) / 64);
else
fprintf (stdout, "%-16s %3d %-16s %s\n",
- node->name, node->lno, node->file, node->pat);
+ np->name, np->lno, np->file, np->pat);
}
else
{
- fprintf (tagf, "%s\t%s\t", node->name, node->file);
+ fprintf (tagf, "%s\t%s\t", np->name, np->file);
- if (node->is_func)
+ if (np->is_func)
{ /* a function */
putc (searchar, tagf);
putc ('^', tagf);
- for (sp = node->pat; *sp; sp++)
+ for (sp = np->pat; *sp; sp++)
{
if (*sp == '\\' || *sp == searchar)
putc ('\\', tagf);
}
else
{ /* a typedef; text pattern inadequate */
- fprintf (tagf, "%d", node->lno);
+ fprintf (tagf, "%d", np->lno);
}
putc ('\n', tagf);
}
}
/* Output subentries that follow this one */
- put_entries (node->right);
+ put_entries (np->right);
}
/* Length of a number's decimal representation. */
-int
+static int
number_len (num)
long num;
{
- int len = 0;
- if (!num)
- return 1;
- for (; num; num /= 10)
- ++len;
+ int len = 1;
+ while ((num /= 10) > 0)
+ len += 1;
return len;
}
* is irrelevant with the new tags.el, but is still supplied for
* backward compatibility.
*/
-int
-total_size_of_entries (node)
- register NODE *node;
+static int
+total_size_of_entries (np)
+ register node *np;
{
register int total;
- if (node == NULL)
+ if (np == NULL)
return 0;
- total = 0;
- for (; node; node = node->right)
+ for (total = 0; np != NULL; np = np->right)
{
/* Count left subentries. */
- total += total_size_of_entries (node->left);
+ total += total_size_of_entries (np->left);
/* Count this entry */
- total += strlen (node->pat) + 1;
- total += number_len ((long) node->lno) + 1 + number_len (node->cno) + 1;
- if (node->name != NULL)
- total += 1 + strlen (node->name); /* \001name */
+ total += strlen (np->pat) + 1;
+ total += number_len ((long) np->lno) + 1 + number_len (np->cno) + 1;
+ if (np->name != NULL)
+ total += 1 + strlen (np->name); /* \001name */
}
return total;
*/
enum sym_type
{
- st_none, st_C_objprot, st_C_objimpl, st_C_objend, st_C_gnumacro,
- st_C_struct, st_C_enum, st_C_define, st_C_typedef, st_C_typespec
+ st_none,
+ st_C_objprot, st_C_objimpl, st_C_objend,
+ st_C_gnumacro,
+ st_C_ignore,
+ st_C_javastruct,
+ st_C_operator,
+ st_C_struct, st_C_extern, st_C_enum, st_C_define, st_C_typedef, st_C_typespec
};
+static unsigned int hash P_((const char *, unsigned int));
+static struct C_stab_entry * in_word_set 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
%[
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, C_PLPL, st_C_struct
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
bool, C_PLPL, st_C_typespec
long, 0, st_C_typespec
short, 0, st_C_typespec
unsigned, 0, st_C_typespec
auto, 0, st_C_typespec
void, 0, st_C_typespec
-extern, 0, st_C_typespec
static, 0, st_C_typespec
const, 0, st_C_typespec
volatile, 0, st_C_typespec
%]
and replace lines between %< and %> with its output. */
/*%<*/
-/* C code produced by gperf version 2.1 (K&R C version) */
+/* 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; };
-#define MIN_WORD_LENGTH 3
+#define TOTAL_KEYWORDS 46
+#define MIN_WORD_LENGTH 2
#define MAX_WORD_LENGTH 15
-#define MIN_HASH_VALUE 34
-#define MAX_HASH_VALUE 121
-/*
- 34 keywords
- 88 is the maximum key range
-*/
+#define MIN_HASH_VALUE 13
+#define MAX_HASH_VALUE 123
+/* maximum key range = 111, duplicates = 0 */
-static int
+#ifdef __GNUC__
+__inline
+#endif
+static unsigned int
hash (str, len)
- register char *str;
- register unsigned int len;
+ register const char *str;
+ register unsigned int len;
{
- static unsigned char hash_table[] =
+ static unsigned char asso_values[] =
+ {
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 3, 124, 124, 124, 43, 6,
+ 11, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 11, 124, 124, 58, 7, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 57, 7, 42,
+ 4, 14, 52, 0, 124, 53, 124, 124, 29, 11,
+ 6, 35, 32, 124, 29, 34, 59, 58, 51, 24,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
+ 124, 124, 124, 124, 124, 124
+ };
+ register int hval = len;
+
+ switch (hval)
{
- 121, 121, 121, 121, 121, 121, 121, 121, 121, 121,
- 121, 121, 121, 121, 121, 121, 121, 121, 121, 121,
- 121, 121, 121, 121, 121, 121, 121, 121, 121, 121,
- 121, 121, 121, 121, 121, 121, 121, 121, 121, 121,
- 121, 121, 121, 121, 121, 121, 121, 121, 121, 121,
- 121, 121, 121, 121, 121, 121, 121, 121, 121, 121,
- 121, 121, 121, 121, 45, 121, 121, 121, 16, 19,
- 61, 121, 121, 121, 121, 121, 121, 121, 121, 121,
- 10, 121, 121, 20, 53, 121, 121, 121, 121, 121,
- 121, 121, 121, 121, 121, 121, 121, 41, 45, 22,
- 60, 47, 37, 28, 121, 55, 121, 121, 20, 14,
- 29, 30, 5, 121, 50, 59, 30, 54, 6, 121,
- 121, 121, 121, 121, 121, 121, 121, 121,
- };
- return len + hash_table[str[2]] + hash_table[str[0]];
+ default:
+ case 3:
+ hval += asso_values[(unsigned char)str[2]];
+ case 2:
+ case 1:
+ hval += asso_values[(unsigned char)str[0]];
+ break;
+ }
+ return hval;
}
-struct C_stab_entry *
+#ifdef __GNUC__
+__inline
+#endif
+static struct C_stab_entry *
in_word_set (str, len)
- register char *str;
+ register const char *str;
register unsigned int len;
{
-
- static struct C_stab_entry wordlist[] =
+ static struct C_stab_entry wordlist[] =
{
- {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",},
- {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",},
- {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",},
- {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",},
- {"volatile", 0, st_C_typespec},
- {"PSEUDO", 0, st_C_gnumacro},
- {"",}, {"",}, {"",}, {"",}, {"",}, {"",},
- {"typedef", 0, st_C_typedef},
- {"typename", C_PLPL, st_C_typespec},
- {"",}, {"",}, {"",},
- {"SYSCALL", 0, st_C_gnumacro},
- {"",}, {"",}, {"",},
- {"mutable", C_PLPL, st_C_typespec},
- {"namespace", C_PLPL, st_C_struct},
- {"long", 0, st_C_typespec},
- {"",}, {"",},
- {"const", 0, st_C_typespec},
- {"",}, {"",}, {"",},
- {"explicit", C_PLPL, st_C_typespec},
- {"",}, {"",}, {"",}, {"",},
- {"void", 0, st_C_typespec},
- {"",},
- {"char", 0, st_C_typespec},
- {"class", C_PLPL, st_C_struct},
- {"",}, {"",}, {"",},
- {"float", 0, st_C_typespec},
- {"",},
- {"@implementation", 0, st_C_objimpl},
- {"auto", 0, st_C_typespec},
- {"",},
- {"ENTRY", 0, st_C_gnumacro},
- {"@end", 0, st_C_objend},
- {"bool", C_PLPL, st_C_typespec},
- {"domain", C_STAR, st_C_struct},
- {"",},
- {"DEFUN", 0, st_C_gnumacro},
- {"extern", 0, st_C_typespec},
- {"@interface", 0, st_C_objprot},
- {"",}, {"",}, {"",},
- {"int", 0, st_C_typespec},
- {"",}, {"",}, {"",}, {"",},
- {"signed", 0, st_C_typespec},
- {"short", 0, st_C_typespec},
- {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",},
- {"define", 0, st_C_define},
- {"@protocol", 0, st_C_objprot},
- {"enum", 0, st_C_enum},
- {"static", 0, st_C_typespec},
- {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",},
- {"union", 0, st_C_struct},
- {"struct", 0, st_C_struct},
- {"",}, {"",}, {"",}, {"",},
- {"double", 0, st_C_typespec},
- {"unsigned", 0, st_C_typespec},
+ {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
+ {""}, {""}, {""}, {""},
+ {"@end", 0, st_C_objend},
+ {""}, {""}, {""}, {""},
+ {"ENTRY", 0, st_C_gnumacro},
+ {"@interface", 0, st_C_objprot},
+ {""},
+ {"domain", C_STAR, st_C_struct},
+ {""},
+ {"PSEUDO", 0, st_C_gnumacro},
+ {""}, {""},
+ {"namespace", C_PLPL, st_C_struct},
+ {""}, {""},
+ {"@implementation",0, st_C_objimpl},
+ {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
+ {"long", 0, st_C_typespec},
+ {"signed", 0, st_C_typespec},
+ {"@protocol", 0, st_C_objprot},
+ {""}, {""}, {""}, {""},
+ {"bool", C_PLPL, st_C_typespec},
+ {""}, {""}, {""}, {""}, {""}, {""},
+ {"const", 0, st_C_typespec},
+ {"explicit", C_PLPL, st_C_typespec},
+ {"if", 0, st_C_ignore},
+ {""},
+ {"operator", C_PLPL, st_C_operator},
+ {""},
+ {"DEFUN", 0, st_C_gnumacro},
+ {""}, {""},
+ {"define", 0, st_C_define},
+ {""}, {""}, {""}, {""}, {""},
+ {"double", 0, st_C_typespec},
+ {"struct", 0, st_C_struct},
+ {""}, {""}, {""}, {""},
+ {"short", 0, st_C_typespec},
+ {""},
+ {"enum", 0, st_C_enum},
+ {"mutable", C_PLPL, st_C_typespec},
+ {""},
+ {"extern", 0, st_C_extern},
+ {"extends", C_JAVA, st_C_javastruct},
+ {"package", C_JAVA, st_C_ignore},
+ {"while", 0, st_C_ignore},
+ {""},
+ {"for", 0, st_C_ignore},
+ {""}, {""}, {""},
+ {"volatile", 0, st_C_typespec},
+ {""}, {""},
+ {"import", C_JAVA, st_C_ignore},
+ {"float", 0, st_C_typespec},
+ {"switch", 0, st_C_ignore},
+ {"return", 0, st_C_ignore},
+ {"implements", C_JAVA, st_C_javastruct},
+ {""},
+ {"static", 0, st_C_typespec},
+ {"typedef", 0, st_C_typedef},
+ {"typename", C_PLPL, st_C_typespec},
+ {"unsigned", 0, st_C_typespec},
+ {""}, {""},
+ {"char", 0, st_C_typespec},
+ {"class", C_PLPL, st_C_struct},
+ {""}, {""}, {""},
+ {"void", 0, st_C_typespec},
+ {""}, {""},
+ {"friend", C_PLPL, st_C_ignore},
+ {""}, {""}, {""},
+ {"int", 0, st_C_typespec},
+ {"union", 0, st_C_struct},
+ {""}, {""}, {""},
+ {"auto", 0, st_C_typespec},
+ {"interface", C_JAVA, st_C_struct},
+ {""},
+ {"SYSCALL", 0, st_C_gnumacro}
};
if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
{
register int key = hash (str, len);
- if (key <= MAX_HASH_VALUE && key >= MIN_HASH_VALUE)
+ if (key <= MAX_HASH_VALUE && key >= 0)
{
- register char *s = wordlist[key].name;
+ register const char *s = wordlist[key].name;
- if (*s == *str && !strncmp (str + 1, s + 1, len - 1))
+ if (*str == *s && !strncmp (str + 1, s + 1, len - 1))
return &wordlist[key];
}
}
}
/*%>*/
-enum sym_type
-C_symtype(str, len, c_ext)
+static enum sym_type
+C_symtype (str, len, c_ext)
char *str;
int len;
int c_ext;
{
- register struct C_stab_entry *se = in_word_set(str, len);
+ register struct C_stab_entry *se = in_word_set (str, len);
if (se == NULL || (se->c_ext && !(c_ext & se->c_ext)))
return st_none;
}
\f
/*
- * C functions are recognized using a simple finite automaton.
- * funcdef is its state variable.
+ * C functions and variables are recognized using a simple
+ * finite automaton. fvdef is its state variable.
*/
enum
{
- fnone, /* nothing seen */
- ftagseen, /* function-like tag seen */
- fstartlist, /* just after open parenthesis */
- finlist, /* in parameter list */
- flistseen, /* after parameter list */
- fignore /* before open brace */
-} funcdef;
-
+ fvnone, /* nothing seen */
+ foperator, /* func: operator keyword seen (cplpl) */
+ fvnameseen, /* function or variable name seen */
+ fstartlist, /* func: just after open parenthesis */
+ finlist, /* func: in parameter list */
+ flistseen, /* func: after parameter list */
+ fignore, /* func: before open brace */
+ vignore /* var-like: ignore until ';' */
+} fvdef;
+
+bool fvextern; /* func or var: extern keyword seen; */
/*
* typedefs are recognized using a simple finite automaton.
enum
{
tnone, /* nothing seen */
- ttypedseen, /* typedef keyword seen */
+ tkeyseen, /* typedef keyword seen */
+ ttypeseen, /* defined type seen */
tinbody, /* inside typedef body */
tend, /* just before typedef tag */
tignore /* junk after typedef tag */
/*
* State machine for Objective C protocols and implementations.
+ * Tom R.Hageman <tom@basil.icce.rug.nl>
*/
enum
{
oignore /* wait for @end */
} objdef;
+
+/*
+ * Use this structure to keep info about the token read, and how it
+ * should be tagged. Used by the make_C_tag function to build a tag.
+ */
+typedef struct
+{
+ bool valid;
+ char *str;
+ bool named;
+ int linelen;
+ int lineno;
+ long linepos;
+ char *buffer;
+} token;
+
+token tok; /* latest token read */
+
/*
* Set this to TRUE, and the next token considered is called a function.
* Used only for GNU emacs's function-defining macros.
*/
-logical next_token_is_func;
+bool next_token_is_func;
/*
* TRUE in the rules part of a yacc file, FALSE outside (parse as C).
*/
-logical yacc_rules;
+bool yacc_rules;
/*
* methodlen is the length of the method name stored in token_name.
*/
int methodlen;
+static bool consider_token P_((char *, int, int, int, int, int, bool *));
+static void make_C_tag P_((bool));
+
/*
* consider_token ()
* checks to see if the current token is at the start of a
- * function, or corresponds to a typedef, or is a struct/union/enum
- * tag.
- *
- * *IS_FUNC gets TRUE iff the token is a function or macro with args.
- * C_EXT is which language we are looking at.
+ * function or variable, or corresponds to a typedef, or
+ * is a struct/union/enum tag, or #define, or an enum constant.
*
- * In the future we will need some way to adjust where the end of
- * the token is; for instance, implementing the C++ keyword
- * `operator' properly will adjust the end of the token to be after
- * whatever follows `operator'.
+ * *IS_FUNC gets TRUE iff the token is a function or #define macro
+ * with args. C_EXT is which language we are looking at.
*
* Globals
- * funcdef IN OUT
+ * fvdef IN OUT
* structdef IN OUT
* definedef IN OUT
* typdef IN OUT
* next_token_is_func IN OUT
*/
-logical
-consider_token (str, len, c, c_ext, cblev, parlev, is_func)
+static bool
+consider_token (str, len, c, c_ext, cblev, parlev, is_func_or_var)
register char *str; /* IN: token pointer */
register int len; /* IN: token length */
- register char c; /* IN: first char after the token */
+ register int c; /* IN: first char after the token */
int c_ext; /* IN: C extensions mask */
int cblev; /* IN: curly brace level */
int parlev; /* IN: parenthesis level */
- logical *is_func; /* OUT: function found */
+ bool *is_func_or_var; /* OUT: function or variable found */
{
enum sym_type toktype = C_symtype (str, len, c_ext);
* and constantypedefs is FALSE.
*/
definedef = dignorerest;
- *is_func = (c == '(');
- if (!*is_func && !constantypedefs)
+ *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.", 0);
+ error ("internal error: definedef value.", (char *)NULL);
}
/*
if (toktype == st_C_typedef)
{
if (typedefs)
- typdef = ttypedseen;
- funcdef = fnone;
+ typdef = tkeyseen;
+ fvextern = FALSE;
+ fvdef = fvnone;
return FALSE;
}
break;
- case ttypedseen:
+ case tkeyseen:
switch (toktype)
{
case st_none:
case st_C_typespec:
- typdef = tend;
- break;
case st_C_struct:
case st_C_enum:
+ typdef = ttypeseen;
break;
}
/* Do not return here, so the structdef stuff has a chance. */
* 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.
- *
- * This if statement deals with the typdef state machine as
- * follows: if typdef==ttypedseen and token is struct/union/class/enum,
- * return FALSE. All the other code here is for the structdef
- * state machine.
*/
switch (toktype)
{
+ case st_C_javastruct:
+ if (structdef == stagseen)
+ structdef = scolonseen;
+ return FALSE;
case st_C_struct:
case st_C_enum:
- if (typdef == ttypedseen
+ if (typdef == tkeyseen
|| (typedefs_and_cplusplus && cblev == 0 && structdef == snone))
{
structdef = skeyseen;
}
return FALSE;
}
+
if (structdef == skeyseen)
{
- /* Save the tag for struct/union/class, for functions that may be
- defined inside. */
+ /* Save the tag for struct/union/class, for functions and variables
+ that may be defined inside. */
if (structtype == st_C_struct)
structtag = savenstr (str, len);
else
return TRUE;
}
- /* Avoid entering funcdef stuff if typdef is going on. */
if (typdef != tnone)
- {
- definedef = dnone;
- return FALSE;
- }
-
- /* Detect GNU macros. */
+ definedef = dnone;
+
+ /* Detect GNU macros.
+
+ Writers of emacs code are recommended to put the
+ first two args of a DEFUN on the same line.
+
+ The DEFUN macro, used in emacs C source code, has a first arg
+ that is a string (the lisp function name), and a second arg that
+ is a C function name. Since etags skips strings, the second arg
+ is tagged. This is unfortunate, as it would be better to tag the
+ first arg. The simplest way to deal with this problem would be
+ to name the tag with a name built from the function name, by
+ removing the initial 'F' character and substituting '-' for '_'.
+ Anyway, this assumes that the conventions of naming lisp
+ functions will never change. Currently, this method is not
+ implemented. */
if (definedef == dnone && toktype == st_C_gnumacro)
{
next_token_is_func = TRUE;
if (next_token_is_func)
{
next_token_is_func = FALSE;
- funcdef = fignore;
- *is_func = TRUE;
+ fvdef = fignore;
+ *is_func_or_var = TRUE;
return TRUE;
}
- /*
- * Detecting Objective C constructs.
- */
+ /* Detect Objective C constructs. */
switch (objdef)
{
case onone:
}
break;
case oimplementation:
- /* Save the class tag for functions that may be defined inside. */
+ /* Save the class tag for functions or variables defined inside. */
objtag = savenstr (str, len);
objdef = oinbody;
return FALSE;
/* Save the class tag for categories. */
objtag = savenstr (str, len);
objdef = otagseen;
- *is_func = TRUE;
+ *is_func_or_var = TRUE;
return TRUE;
case oparenseen:
objdef = ocatseen;
- *is_func = TRUE;
+ *is_func_or_var = TRUE;
return TRUE;
case oinbody:
break;
{
objdef = omethodtag;
methodlen = len;
- GROW_LINEBUFFER (token_name, methodlen+1);
+ grow_linebuffer (&token_name, methodlen + 1);
strncpy (token_name.buffer, str, len);
token_name.buffer[methodlen] = '\0';
+ token_name.len = methodlen;
return TRUE;
}
return FALSE;
{
objdef = omethodtag;
methodlen += len;
- GROW_LINEBUFFER (token_name, methodlen+1);
+ grow_linebuffer (&token_name, methodlen + 1);
strncat (token_name.buffer, str, len);
+ token_name.len = methodlen;
return TRUE;
}
return FALSE;
return FALSE;
}
- /* A function? */
+ /* A function, variable or enum constant? */
switch (toktype)
{
+ case st_C_extern:
+ fvextern = TRUE;
+ /* FALLTHRU */
case st_C_typespec:
- if (funcdef != finlist && funcdef != fignore)
- funcdef = fnone; /* should be useless */
+ if (fvdef != finlist && fvdef != fignore && fvdef != vignore)
+ fvdef = fvnone; /* should be useless */
return FALSE;
- default:
- if (funcdef == fnone)
+ 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 ((c_ext & C_PLPL) && strneq (str+len-10, "::operator", 10))
+ {
+ fvdef = foperator;
+ *is_func_or_var = TRUE;
+ return TRUE;
+ }
+ if (constantypedefs && structdef == sinbody && structtype == st_C_enum)
+ return TRUE;
+ if (fvdef == fvnone)
{
- funcdef = ftagseen;
- *is_func = TRUE;
+ fvdef = fvnameseen; /* function or variable */
+ *is_func_or_var = TRUE;
return TRUE;
}
+ break;
}
return FALSE;
/*
* C_entries ()
- * This routine finds functions, typedefs, #define's and
- * struct/union/enum definitions in C syntax and adds them
- * to the list.
+ * This routine finds functions, variables, typedefs,
+ * #define's, enum constants and struct/union/enum definitions in
+ * C syntax and adds them to the list.
*/
-typedef struct
-{
- logical valid;
- char *str;
- logical named;
- int linelen;
- int lineno;
- long linepos;
- char *buffer;
-} TOKEN;
-
#define current_lb_is_new (newndx == curndx)
#define switch_line_buffers() (curndx = 1 - curndx)
#define othlinepos (lbs[1-curndx].linepos)
#define newlinepos (lbs[newndx].linepos)
-#define CNL_SAVE_DEFINEDEF \
+#define CNL_SAVE_DEFINEDEF() \
do { \
curlinepos = charno; \
lineno++; \
newndx = curndx; \
} while (0)
-#define CNL \
+#define CNL() \
do { \
- CNL_SAVE_DEFINEDEF; \
+ CNL_SAVE_DEFINEDEF(); \
if (savetok.valid) \
{ \
tok = savetok; \
definedef = dnone; \
} while (0)
-/* Ideally this macro should never be called wihen tok.valid is FALSE,
- but this would mean that the state machines always guess right. */
-#define make_tag(isfun) do \
-if (tok.valid) { \
- char *name = NULL; \
- if (CTAGS || tok.named) \
- name = savestr (token_name.buffer); \
- pfnote (name, isfun, tok.buffer, tok.linelen, tok.lineno, tok.linepos); \
- tok.valid = FALSE; \
-} while (0)
-void
+static void
+make_C_tag (isfun)
+ bool isfun;
+{
+ /* This function should never be called when tok.valid is FALSE, but
+ we must protect against invalid input or internal errors. */
+ if (tok.valid)
+ {
+ if (traditional_tag_style)
+ {
+ /* This was the original code. Now we call new_pfnote instead,
+ which uses the new method for naming tags (see new_pfnote). */
+ char *name = NULL;
+
+ if (CTAGS || tok.named)
+ name = savestr (token_name.buffer);
+ pfnote (name, isfun,
+ tok.buffer, tok.linelen, tok.lineno, tok.linepos);
+ }
+ else
+ new_pfnote (token_name.buffer, token_name.len, isfun,
+ tok.buffer, tok.linelen, tok.lineno, tok.linepos);
+ tok.valid = FALSE;
+ }
+ else if (DEBUG)
+ abort ();
+}
+
+
+static void
C_entries (c_ext, inf)
int c_ext; /* extension of C */
FILE *inf; /* input file */
register char c; /* latest char read; '\0' for end of line */
register char *lp; /* pointer one beyond the character `c' */
int curndx, newndx; /* indices for current and new lb */
- TOKEN tok; /* latest token read */
register int tokoff; /* offset in line of start of current token */
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 parlev; /* current parenthesis level */
- logical incomm, inquote, inchar, quotednl, midtoken;
- logical cplpl;
- TOKEN savetok; /* token saved during preprocessor handling */
+ bool incomm, inquote, inchar, quotednl, midtoken;
+ bool purec, cplpl, cjava;
+ token savetok; /* token saved during preprocessor handling */
+ tokoff = toklen = 0; /* keep compiler quiet */
curndx = newndx = 0;
lineno = 0;
charno = 0;
lp = curlb.buffer;
*lp = 0;
- funcdef = fnone; typdef = tnone; structdef = snone;
- definedef = dnone; objdef = onone;
+ fvdef = fvnone; fvextern = FALSE; typdef = tnone;
+ structdef = snone; definedef = dnone; objdef = onone;
next_token_is_func = yacc_rules = FALSE;
midtoken = inquote = inchar = incomm = quotednl = FALSE;
tok.valid = savetok.valid = FALSE;
cblev = 0;
parlev = 0;
- cplpl = c_ext & C_PLPL;
+ purec = !(c_ext & ~YACC); /* no extensions (apart from possibly yacc) */
+ cplpl = (c_ext & C_PLPL) == C_PLPL;
+ cjava = (c_ext & C_JAVA) == C_JAVA;
+ if (cjava)
+ { qualifier = "."; qlen = 1; }
+ else
+ { qualifier = "::"; qlen = 2; }
while (!feof (inf))
{
case '\0':
/* Newlines inside comments do not end macro definitions in
traditional cpp. */
- CNL_SAVE_DEFINEDEF;
+ CNL_SAVE_DEFINEDEF ();
break;
}
continue;
/* Newlines inside strings do not end macro definitions
in traditional cpp, even though compilers don't
usually accept them. */
- CNL_SAVE_DEFINEDEF;
+ CNL_SAVE_DEFINEDEF ();
break;
}
continue;
{
case '\0':
/* Hmmm, something went wrong. */
- CNL;
+ CNL ();
/* FALLTHRU */
case '\'':
inchar = FALSE;
{
case '"':
inquote = TRUE;
- if (funcdef != finlist && funcdef != fignore)
- funcdef = fnone;
+ if (fvdef != finlist && fvdef != fignore && fvdef !=vignore)
+ {
+ fvextern = FALSE;
+ fvdef = fvnone;
+ }
continue;
case '\'':
inchar = TRUE;
- if (funcdef != finlist && funcdef != fignore)
- funcdef = fnone;
+ if (fvdef != finlist && fvdef != fignore && fvdef !=vignore)
+ {
+ fvextern = FALSE;
+ fvdef = fvnone;
+ }
continue;
case '/':
if (*lp == '*')
{
/* entering or exiting rules section in yacc file */
lp++;
- definedef = dnone; funcdef = fnone;
+ definedef = dnone; fvdef = fvnone; fvextern = FALSE;
typdef = tnone; structdef = snone;
next_token_is_func = FALSE;
midtoken = inquote = inchar = incomm = quotednl = FALSE;
if (definedef == dnone)
{
char *cp;
- logical cpptoken = TRUE;
+ bool cpptoken = TRUE;
/* Look back on this line. If all blanks, or nonblanks
followed by an end of comment, this is a preprocessor
/* Consider token only if some complicated conditions are satisfied. */
if ((definedef != dnone
|| (cblev == 0 && structdef != scolonseen)
- || (cblev == 1 && cplpl && structdef == sinbody))
+ || (cblev == 1 && cplpl && structdef == sinbody)
+ || (structdef == sinbody && purec))
&& typdef != tignore
&& definedef != dignorerest
- && funcdef != finlist)
+ && fvdef != finlist)
{
if (midtoken)
{
if (endtoken (c))
{
- if (c == ':' && cplpl && *lp == ':' && begtoken(*(lp + 1)))
+ bool funorvar = FALSE;
+
+ if (c == ':' && cplpl && *lp == ':' && begtoken (lp[1]))
{
/*
* This handles :: in the middle, but not at the
- * beginning of an identifier.
+ * beginning of an identifier. Also, space-separated
+ * :: is not recognised.
*/
lp += 2;
- toklen += 3;
+ toklen += 2;
+ c = lp[-1];
+ goto intok;
}
else
{
- logical is_func = FALSE;
-
if (yacc_rules
|| consider_token (newlb.buffer + tokoff, toklen, c,
- c_ext, cblev, parlev, &is_func))
+ c_ext, cblev, parlev, &funorvar))
{
- if (structdef == sinbody
+ if (fvdef == foperator)
+ {
+ char *oldlp = lp;
+ lp = skip_spaces (lp-1);
+ if (*lp != '\0')
+ lp += 1;
+ while (*lp != '\0'
+ && !iswhite (*lp) && *lp != '(')
+ lp += 1;
+ c = *lp++;
+ toklen += lp - oldlp;
+ }
+ tok.named = FALSE;
+ if (!purec
+ && funorvar
&& definedef == dnone
- && is_func)
- /* function defined in C++ class body */
+ && structdef == sinbody)
+ /* function or var defined in C++ class body */
{
- GROW_LINEBUFFER (token_name,
- strlen(structtag)+2+toklen+1);
+ int len = strlen (structtag) + qlen + toklen;
+ grow_linebuffer (&token_name, len + 1);
strcpy (token_name.buffer, structtag);
- strcat (token_name.buffer, "::");
+ strcat (token_name.buffer, qualifier);
strncat (token_name.buffer,
- newlb.buffer+tokoff, toklen);
+ newlb.buffer + tokoff, toklen);
+ token_name.len = len;
tok.named = TRUE;
}
else if (objdef == ocatseen)
/* Objective C category */
{
- GROW_LINEBUFFER (token_name,
- strlen(objtag)+2+toklen+1);
+ int len = strlen (objtag) + 2 + toklen;
+ grow_linebuffer (&token_name, len + 1);
strcpy (token_name.buffer, objtag);
strcat (token_name.buffer, "(");
strncat (token_name.buffer,
- newlb.buffer+tokoff, toklen);
+ newlb.buffer + tokoff, toklen);
strcat (token_name.buffer, ")");
+ token_name.len = len;
tok.named = TRUE;
}
else if (objdef == omethodtag
}
else
{
- GROW_LINEBUFFER (token_name, toklen+1);
+ grow_linebuffer (&token_name, toklen + 1);
strncpy (token_name.buffer,
- newlb.buffer+tokoff, toklen);
+ newlb.buffer + tokoff, toklen);
token_name.buffer[toklen] = '\0';
- if (structdef == stagseen
- || typdef == tend
- || (is_func
- && definedef == dignorerest)) /* macro */
- tok.named = TRUE;
- else
- tok.named = FALSE;
+ token_name.len = toklen;
+ /* Name macros and members. */
+ tok.named = (structdef == stagseen
+ || typdef == ttypeseen
+ || typdef == tend
+ || (funorvar
+ && definedef == dignorerest)
+ || (funorvar
+ && definedef == dnone
+ && structdef == sinbody));
}
tok.lineno = lineno;
tok.linelen = tokoff + toklen + 1;
tok.valid = TRUE;
if (definedef == dnone
- && (funcdef == ftagseen
+ && (fvdef == fvnameseen
+ || fvdef == foperator
|| structdef == stagseen
|| typdef == tend
|| objdef != onone))
switch_line_buffers ();
}
else
- make_tag (is_func);
+ make_C_tag (funorvar);
}
midtoken = FALSE;
}
} /* if (endtoken (c)) */
else if (intoken (c))
+ intok:
{
toklen++;
continue;
switch (definedef)
{
case dnone:
- switch (funcdef)
+ switch (fvdef)
{
case fstartlist:
- funcdef = finlist;
+ fvdef = finlist;
continue;
case flistseen:
- make_tag (TRUE);
- funcdef = fignore;
+ make_C_tag (TRUE); /* a function */
+ fvdef = fignore;
break;
- case ftagseen:
- funcdef = fnone;
+ case fvnameseen:
+ fvdef = fvnone;
break;
}
- if (structdef == stagseen)
+ if (structdef == stagseen && !cjava)
structdef = snone;
break;
case dsharpseen:
{
case otagseen:
objdef = oignore;
- make_tag (TRUE);
+ make_C_tag (TRUE); /* an Objective C class */
break;
case omethodtag:
case omethodparm:
objdef = omethodcolon;
methodlen += 1;
- GROW_LINEBUFFER (token_name, methodlen+1);
+ grow_linebuffer (&token_name, methodlen + 1);
strcat (token_name.buffer, ":");
+ token_name.len = methodlen;
break;
}
if (structdef == stagseen)
structdef = scolonseen;
else
- switch (funcdef)
+ switch (fvdef)
{
- case ftagseen:
+ case fvnameseen:
if (yacc_rules)
{
- make_tag (FALSE);
- funcdef = fignore;
+ make_C_tag (FALSE); /* a yacc function */
+ fvdef = fignore;
}
break;
case fstartlist:
- funcdef = fnone;
+ fvextern = FALSE;
+ fvdef = fvnone;
break;
}
break;
switch (typdef)
{
case tend:
- make_tag (FALSE);
+ make_C_tag (FALSE); /* a typedef */
/* FALLTHRU */
default:
typdef = tnone;
}
- if (funcdef != fignore)
+ switch (fvdef)
{
- funcdef = fnone;
+ case fignore:
+ break;
+ case fvnameseen:
+ if ((members && cblev == 1)
+ || (globals && cblev == 0 && (!fvextern || declarations)))
+ make_C_tag (FALSE); /* a variable */
+ fvextern = FALSE;
+ fvdef = fvnone;
+ tok.valid = FALSE;
+ break;
+ case flistseen:
+ if (declarations && (cblev == 0 || cblev == 1))
+ make_C_tag (TRUE); /* a function declaration */
+ /* FALLTHRU */
+ default:
+ fvextern = FALSE;
+ fvdef = fvnone;
/* The following instruction invalidates the token.
Probably the token should be invalidated in all
other cases where some state machine is reset. */
{
case omethodtag:
case omethodparm:
- make_tag (TRUE);
+ make_C_tag (TRUE); /* an Objective C method */
objdef = oinbody;
break;
}
- if (funcdef != finlist && funcdef != fignore)
- funcdef = fnone;
+ switch (fvdef)
+ {
+ case foperator:
+ case finlist:
+ case fignore:
+ case vignore:
+ break;
+ case fvnameseen:
+ if ((members && cblev == 1)
+ || (globals && cblev == 0 && (!fvextern || declarations)))
+ make_C_tag (FALSE); /* a variable */
+ break;
+ default:
+ fvdef = fvnone;
+ }
if (structdef == stagseen)
structdef = snone;
break;
if (cblev == 0 && typdef == tend)
{
typdef = tignore;
- make_tag (FALSE);
+ make_C_tag (FALSE); /* a typedef */
+ break;
+ }
+ switch (fvdef)
+ {
+ case foperator:
+ case finlist:
+ case fignore:
+ case vignore:
break;
+ case fvnameseen:
+ if ((members && cblev == 1)
+ || (globals && cblev == 0 && (!fvextern || declarations)))
+ make_C_tag (FALSE); /* a variable */
+ /* FALLTHRU */
+ default:
+ fvdef = fvnone;
}
- if (funcdef != finlist && funcdef != fignore)
- funcdef = fnone;
if (structdef == stagseen)
structdef = snone;
break;
break;
if (objdef == otagseen && parlev == 0)
objdef = oparenseen;
- switch (funcdef)
+ switch (fvdef)
{
- case fnone:
- switch (typdef)
+ case fvnameseen:
+ if (typdef == ttypeseen
+ && tok.valid
+ && *lp != '*'
+ && structdef != sinbody)
{
- case ttypedseen:
- case tend:
- /* Make sure that the next char is not a '*'.
- This handles constructs like:
+ /* This handles constructs like:
typedef void OperatorFun (int fun); */
- if (*lp != '*')
- {
- typdef = tignore;
- make_tag (FALSE);
- }
- break;
- } /* switch (typdef) */
- break;
- case ftagseen:
- funcdef = fstartlist;
+ make_C_tag (FALSE);
+ typdef = tignore;
+ }
+ /* FALLTHRU */
+ case foperator:
+ fvdef = fstartlist;
break;
case flistseen:
- funcdef = finlist;
+ fvdef = finlist;
break;
}
parlev++;
break;
if (objdef == ocatseen && parlev == 1)
{
- make_tag (TRUE);
+ make_C_tag (TRUE); /* an Objective C category */
objdef = oignore;
}
if (--parlev == 0)
{
- switch (funcdef)
+ switch (fvdef)
{
case fstartlist:
case finlist:
- funcdef = flistseen;
+ fvdef = flistseen;
break;
}
- if (cblev == 0 && typdef == tend)
+ if (cblev == 0 && (typdef == tend))
{
typdef = tignore;
- make_tag (FALSE);
+ make_C_tag (FALSE); /* a typedef */
}
}
else if (parlev < 0) /* can happen due to ill-conceived #if's. */
case '{':
if (definedef != dnone)
break;
- if (typdef == ttypedseen)
+ if (typdef == ttypeseen)
typdef = tinbody;
switch (structdef)
{
case skeyseen: /* unnamed struct */
- structtag = "_anonymous_";
structdef = sinbody;
+ structtag = "_anonymous_";
break;
case stagseen:
case scolonseen: /* named struct */
structdef = sinbody;
- make_tag (FALSE);
+ make_C_tag (FALSE); /* a struct */
break;
}
- switch (funcdef)
+ switch (fvdef)
{
case flistseen:
- make_tag (TRUE);
+ make_C_tag (TRUE); /* a function */
/* FALLTHRU */
case fignore:
- funcdef = fnone;
+ fvdef = fvnone;
break;
- case fnone:
+ case fvnone:
switch (objdef)
{
case otagseen:
- make_tag (TRUE);
+ make_C_tag (TRUE); /* an Objective C class */
objdef = oignore;
break;
case omethodtag:
case omethodparm:
- make_tag (TRUE);
+ make_C_tag (TRUE); /* an Objective C method */
objdef = oinbody;
break;
default:
- /* Neutralize `extern "C" {' grot and look inside structs. */
+ /* Neutralize `extern "C" {' grot. */
if (cblev == 0 && structdef == snone && typdef == tnone)
cblev = -1;
}
case '*':
if (definedef != dnone)
break;
- if (funcdef == fstartlist)
- funcdef = fnone; /* avoid tagging `foo' in `foo (*bar()) ()' */
+ if (fvdef == fstartlist)
+ fvdef = fvnone; /* avoid tagging `foo' in `foo (*bar()) ()' */
break;
case '}':
if (definedef != dnone)
structtag = "<error>";
}
break;
+ case '=':
+ if (definedef != dnone)
+ break;
+ switch (fvdef)
+ {
+ case foperator:
+ case finlist:
+ case fignore:
+ case vignore:
+ break;
+ case fvnameseen:
+ if ((members && cblev == 1)
+ || (globals && cblev == 0 && (!fvextern || declarations)))
+ make_C_tag (FALSE); /* a variable */
+ /* FALLTHRU */
+ default:
+ fvdef = vignore;
+ }
+ break;
case '+':
case '-':
if (objdef == oinbody && cblev == 0)
break;
}
/* FALLTHRU */
- case '=': case '#': case '~': case '&': case '%': 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. */
- if (funcdef != finlist && funcdef != fignore)
- funcdef = fnone;
+ /* These surely cannot follow a function tag in C. */
+ switch (fvdef)
+ {
+ case foperator:
+ case finlist:
+ case fignore:
+ case vignore:
+ break;
+ default:
+ fvdef = fvnone;
+ }
break;
case '\0':
if (objdef == otagseen)
{
- make_tag (TRUE);
+ make_C_tag (TRUE); /* an Objective C class */
objdef = oignore;
}
/* If a macro spans multiple lines don't reset its state. */
if (quotednl)
- CNL_SAVE_DEFINEDEF;
+ CNL_SAVE_DEFINEDEF ();
else
- CNL;
+ CNL ();
break;
} /* switch (c) */
* Process either a C++ file or a C file depending on the setting
* of a global flag.
*/
-void
+static void
default_C_entries (inf)
FILE *inf;
{
}
/* Always do plain ANSI C. */
-void
+static void
plain_C_entries (inf)
FILE *inf;
{
}
/* Always do C++. */
-void
+static void
Cplusplus_entries (inf)
FILE *inf;
{
C_entries (C_PLPL, inf);
}
+/* Always do Java. */
+static void
+Cjava_entries (inf)
+ FILE *inf;
+{
+ C_entries (C_JAVA, inf);
+}
+
/* Always do C*. */
-void
+static void
Cstar_entries (inf)
FILE *inf;
{
}
/* Always do Yacc. */
-void
+static void
Yacc_entries (inf)
FILE *inf;
{
C_entries (YACC, inf);
}
\f
+/* A useful macro. */
+#define LOOP_ON_INPUT_LINES(file_pointer, line_buffer, char_pointer) \
+ for (lineno = charno = 0; /* loop initialization */ \
+ !feof (file_pointer) /* loop test */ \
+ && (lineno++, /* instructions at start of loop */ \
+ linecharno = charno, \
+ charno += readline (&line_buffer, file_pointer), \
+ char_pointer = lb.buffer, \
+ TRUE); \
+ )
+
+
+/*
+ * Read a file, but do no processing. This is used to do regexp
+ * matching on files that have no language defined.
+ */
+static void
+just_read_file (inf)
+ FILE *inf;
+{
+ register char *dummy;
+
+ LOOP_ON_INPUT_LINES (inf, lb, dummy)
+ continue;
+}
+\f
/* Fortran parsing */
-char *dbp;
+static bool tail P_((char *));
+static void takeprec P_((void));
+static void getit P_((FILE *));
-logical
+static bool
tail (cp)
char *cp;
{
register int len = 0;
- while (*cp && lowcase(*cp) == lowcase(dbp[len]))
+ while (*cp != '\0' && lowcase (*cp) == lowcase (dbp[len]))
cp++, len++;
- if (*cp == '\0' && !intoken(dbp[len]))
+ if (*cp == '\0' && !intoken (dbp[len]))
{
dbp += len;
return TRUE;
return FALSE;
}
-void
+static void
takeprec ()
{
- while (isspace (*dbp))
- dbp++;
+ dbp = skip_spaces (dbp);
if (*dbp != '*')
return;
dbp++;
- while (isspace (*dbp))
- dbp++;
+ dbp = skip_spaces (dbp);
if (strneq (dbp, "(*)", 3))
{
dbp += 3;
while (isdigit (*dbp));
}
-void
+static void
getit (inf)
FILE *inf;
{
register char *cp;
- while (isspace (*dbp))
- dbp++;
+ dbp = skip_spaces (dbp);
if (*dbp == '\0')
{
lineno++;
if (dbp[5] != '&')
return;
dbp += 6;
- while (isspace (*dbp))
- dbp++;
+ dbp = skip_spaces (dbp);
}
- if (!isalpha (*dbp)
- && *dbp != '_'
- && *dbp != '$')
+ if (!isalpha (*dbp) && *dbp != '_' && *dbp != '$')
return;
- for (cp = dbp + 1;
- (*cp
- && (isalpha (*cp) || isdigit (*cp) || (*cp == '_') || (*cp == '$')));
- cp++)
+ for (cp = dbp + 1; *cp != '\0' && intoken (*cp); cp++)
continue;
- pfnote ((CTAGS) ? savenstr (dbp, cp-dbp) : NULL, TRUE,
+ pfnote (savenstr (dbp, cp-dbp), TRUE,
lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
}
-void
+
+static void
Fortran_functions (inf)
FILE *inf;
{
- lineno = 0;
- charno = 0;
-
- while (!feof (inf))
+ LOOP_ON_INPUT_LINES (inf, lb, dbp)
{
- lineno++;
- linecharno = charno;
- charno += readline (&lb, inf);
- dbp = lb.buffer;
if (*dbp == '%')
dbp++; /* Ratfor escape to fortran */
- while (isspace (*dbp))
- dbp++;
+ dbp = skip_spaces (dbp);
if (*dbp == '\0')
continue;
switch (lowcase (*dbp))
case 'd':
if (tail ("double"))
{
- while (isspace (*dbp))
- dbp++;
+ dbp = skip_spaces (dbp);
if (*dbp == '\0')
continue;
if (tail ("precision"))
}
break;
}
- while (isspace (*dbp))
- dbp++;
+ dbp = skip_spaces (dbp);
if (*dbp == '\0')
continue;
switch (lowcase (*dbp))
if (tail ("entry"))
getit (inf);
continue;
- case 'p':
- if (tail ("program"))
+ case 'b':
+ if (tail ("blockdata") || tail ("block data"))
{
- getit (inf);
- continue;
+ dbp = skip_spaces (dbp);
+ if (*dbp == '\0') /* assume un-named */
+ pfnote (savestr ("blockdata"), TRUE,
+ lb.buffer, dbp - lb.buffer, lineno, linecharno);
+ else
+ getit (inf); /* look for name */
}
- if (tail ("procedure"))
- getit (inf);
continue;
}
}
}
\f
+/*
+ * Philippe Waroquiers <philippe.waroquiers@eurocontrol.be>, 1998-04-24
+ * Ada parsing
+ */
+
+static void adagetit P_((FILE *, char *));
+
+/* Once we are positioned after an "interesting" keyword, let's get
+ the real tag value necessary. */
+static void
+adagetit (inf, name_qualifier)
+ FILE *inf;
+ char *name_qualifier;
+{
+ register char *cp;
+ char *name;
+ char c;
+
+ while (!feof (inf))
+ {
+ dbp = skip_spaces (dbp);
+ if (*dbp == '\0'
+ || (dbp[0] == '-' && dbp[1] == '-'))
+ {
+ lineno++;
+ linecharno = charno;
+ charno += readline (&lb, inf);
+ dbp = lb.buffer;
+ }
+ switch (*dbp)
+ {
+ case 'b':
+ case 'B':
+ if (tail ("body"))
+ {
+ /* Skipping body of procedure body or package body or ....
+ resetting qualifier to body instead of spec. */
+ name_qualifier = "/b";
+ continue;
+ }
+ break;
+ case 't':
+ case 'T':
+ /* Skipping type of task type or protected type ... */
+ if (tail ("type"))
+ continue;
+ break;
+ }
+ if (*dbp == '"')
+ {
+ dbp += 1;
+ for (cp = dbp; *cp != '\0' && *cp != '"'; cp++)
+ continue;
+ }
+ else
+ {
+ dbp = skip_spaces (dbp);
+ for (cp = dbp;
+ (*cp != '\0'
+ && (isalpha (*cp) || isdigit (*cp) || *cp == '_' || *cp == '.'));
+ cp++)
+ continue;
+ if (cp == dbp)
+ return;
+ }
+ c = *cp;
+ *cp = '\0';
+ name = concat (dbp, name_qualifier, "");
+ *cp = c;
+ pfnote (name, TRUE, lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ if (c == '"')
+ dbp = cp + 1;
+ return;
+ }
+}
+
+static void
+Ada_funcs (inf)
+ FILE *inf;
+{
+ bool inquote = FALSE;
+
+ LOOP_ON_INPUT_LINES (inf, lb, dbp)
+ {
+ while (*dbp != '\0')
+ {
+ /* Skip a string i.e. "abcd". */
+ if (inquote || (*dbp == '"'))
+ {
+ dbp = etags_strchr ((inquote) ? dbp : dbp+1, '"');
+ if (dbp != NULL)
+ {
+ inquote = FALSE;
+ dbp += 1;
+ continue; /* advance char */
+ }
+ else
+ {
+ inquote = TRUE;
+ break; /* advance line */
+ }
+ }
+
+ /* Skip comments. */
+ if (dbp[0] == '-' && dbp[1] == '-')
+ break; /* advance line */
+
+ /* Skip character enclosed in single quote i.e. 'a'
+ and skip single quote starting an attribute i.e. 'Image. */
+ if (*dbp == '\'')
+ {
+ dbp++ ;
+ if (*dbp != '\0')
+ dbp++;
+ continue;
+ }
+
+ /* Search for beginning of a token. */
+ if (!begtoken (*dbp))
+ {
+ dbp++;
+ continue; /* advance char */
+ }
+
+ /* We are at the beginning of a token. */
+ switch (*dbp)
+ {
+ case 'f':
+ case 'F':
+ if (!packages_only && tail ("function"))
+ adagetit (inf, "/f");
+ else
+ break; /* from switch */
+ continue; /* advance char */
+ case 'p':
+ case 'P':
+ if (!packages_only && tail ("procedure"))
+ adagetit (inf, "/p");
+ else if (tail ("package"))
+ adagetit (inf, "/s");
+ else if (tail ("protected")) /* protected type */
+ adagetit (inf, "/t");
+ else
+ break; /* from switch */
+ continue; /* advance char */
+ case 't':
+ case 'T':
+ if (!packages_only && tail ("task"))
+ adagetit (inf, "/k");
+ else if (typedefs && !packages_only && tail ("type"))
+ {
+ adagetit (inf, "/t");
+ while (*dbp != '\0')
+ dbp += 1;
+ }
+ else
+ break; /* from switch */
+ continue; /* advance char */
+ }
+
+ /* Look for the end of the token. */
+ while (!endtoken (*dbp))
+ dbp++;
+
+ } /* advance char */
+ } /* advance line */
+}
+\f
/*
* Bob Weiner, Motorola Inc., 4/3/94
* Unix and microcontroller assembly tag handling
* look for '^[a-zA-Z_.$][a-zA_Z0-9_.$]*[: ^I^J]'
*/
-void
+static void
Asm_labels (inf)
FILE *inf;
{
register char *cp;
- lineno = 0;
- charno = 0;
-
- while (!feof (inf))
+ LOOP_ON_INPUT_LINES (inf, lb, cp)
{
- lineno++;
- linecharno = charno;
- charno += readline (&lb, inf);
- cp = lb.buffer;
-
/* If first char is alphabetic or one of [_.$], test for colon
following identifier. */
if (isalpha (*cp) || *cp == '_' || *cp == '.' || *cp == '$')
cp++;
while (isalnum (*cp) || *cp == '_' || *cp == '.' || *cp == '$')
cp++;
- if (*cp == ':' || isspace (*cp))
+ if (*cp == ':' || iswhite (*cp))
{
/* Found end of label, so copy it and add it to the table. */
- pfnote ((CTAGS) ? savenstr(lb.buffer, cp-lb.buffer) : NULL, TRUE,
+ pfnote (savenstr(lb.buffer, cp-lb.buffer), TRUE,
lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
}
}
\f
/*
* Perl support by Bart Robinson <lomew@cs.utah.edu>
+ * enhanced by Michael Ernst <mernst@alum.mit.edu>
* Perl sub names: look for /^sub[ \t\n]+[^ \t\n{]+/
+ * Perl variable names: /^(my|local).../
*/
-void
+static void
Perl_functions (inf)
FILE *inf;
{
register char *cp;
- lineno = 0;
- charno = 0;
-
- while (!feof (inf))
+ LOOP_ON_INPUT_LINES (inf, lb, cp)
{
- lineno++;
- linecharno = charno;
- charno += readline (&lb, inf);
- cp = lb.buffer;
+ if (*cp++ == 's'
+ && *cp++ == 'u'
+ && *cp++ == 'b' && iswhite (*cp++))
+ {
+ cp = skip_spaces (cp);
+ if (*cp != '\0')
+ {
+ char *sp = cp;
+ while (*cp != '\0'
+ && !iswhite (*cp) && *cp != '{' && *cp != '(')
+ cp++;
+ pfnote (savenstr (sp, cp-sp), TRUE,
+ lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ }
+ }
+ else if (globals /* only if tagging global vars is enabled */
+ && ((cp = lb.buffer,
+ *cp++ == 'm'
+ && *cp++ == 'y')
+ || (cp = lb.buffer,
+ *cp++ == 'l'
+ && *cp++ == 'o'
+ && *cp++ == 'c'
+ && *cp++ == 'a'
+ && *cp++ == 'l'))
+ && (*cp == '(' || iswhite (*cp)))
+ {
+ /* After "my" or "local", but before any following paren or space. */
+ char *varname = NULL;
+
+ cp = skip_spaces (cp);
+ if (*cp == '$' || *cp == '@' || *cp == '%')
+ {
+ char* varstart = ++cp;
+ while (isalnum (*cp) || *cp == '_')
+ cp++;
+ varname = savenstr (varstart, cp-varstart);
+ }
+ else
+ {
+ /* Should be examining a variable list at this point;
+ could insist on seeing an open parenthesis. */
+ while (*cp != '\0' && *cp != ';' && *cp != '=' && *cp != ')')
+ cp++;
+ }
+
+ /* Perhaps I should back cp up one character, so the TAGS table
+ doesn't mention (and so depend upon) the following char. */
+ pfnote ((CTAGS) ? savenstr (lb.buffer, cp-lb.buffer) : varname,
+ FALSE, lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ }
+ }
+}
+\f
+/*
+ * Python support by Eric S. Raymond <esr@thyrsus.com>
+ * Look for /^def[ \t\n]+[^ \t\n(:]+/ or /^class[ \t\n]+[^ \t\n(:]+/
+ */
+static void
+Python_functions (inf)
+ FILE *inf;
+{
+ register char *cp;
- if (*cp++ == 's' && *cp++ == 'u' && *cp++ == 'b' && isspace(*cp++))
+ LOOP_ON_INPUT_LINES (inf, lb, cp)
+ {
+ if (*cp++ == 'd'
+ && *cp++ == 'e'
+ && *cp++ == 'f' && iswhite (*cp++))
{
- while (*cp && isspace(*cp))
+ cp = skip_spaces (cp);
+ while (*cp != '\0' && !iswhite (*cp) && *cp != '(' && *cp != ':')
cp++;
- while (*cp && ! isspace(*cp) && *cp != '{')
+ pfnote (NULL, TRUE,
+ lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ }
+
+ cp = lb.buffer;
+ if (*cp++ == 'c'
+ && *cp++ == 'l'
+ && *cp++ == 'a'
+ && *cp++ == 's'
+ && *cp++ == 's' && iswhite (*cp++))
+ {
+ cp = skip_spaces (cp);
+ while (*cp != '\0' && !iswhite (*cp) && *cp != '(' && *cp != ':')
cp++;
- pfnote ((CTAGS) ? savenstr (lb.buffer, cp-lb.buffer) : NULL, TRUE,
+ pfnote (NULL, TRUE,
lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
}
}
}
\f
+/* Idea by Corny de Souza
+ * Cobol tag functions
+ * We could look for anything that could be a paragraph name.
+ * i.e. anything that starts in column 8 is one word and ends in a full stop.
+ */
+static void
+Cobol_paragraphs (inf)
+ FILE *inf;
+{
+ register char *bp, *ep;
+
+ LOOP_ON_INPUT_LINES (inf, lb, bp)
+ {
+ if (lb.len < 9)
+ continue;
+ bp += 8;
+
+ /* If eoln, compiler option or comment ignore whole line. */
+ if (bp[-1] != ' ' || !isalnum (bp[0]))
+ continue;
+
+ for (ep = bp; isalnum (*ep) || *ep == '-'; ep++)
+ continue;
+ if (*ep++ == '.')
+ pfnote (savenstr (bp, ep-bp), TRUE,
+ lb.buffer, ep - lb.buffer + 1, lineno, linecharno);
+ }
+}
+\f
/* Added by Mosur Mohan, 4/22/88 */
/* Pascal parsing */
* "forward" immediately following the procedure statement; if found,
* the tag is skipped.
*/
-void
+static void
Pascal_functions (inf)
FILE *inf;
{
- struct linebuffer tline; /* mostly copied from C_entries */
+ linebuffer tline; /* mostly copied from C_entries */
long save_lcno;
int save_lineno, save_len;
char c, *cp, *namebuf;
- logical /* each of these flags is TRUE iff: */
+ bool /* each of these flags is TRUE iff: */
incomment, /* point is inside a comment */
inquote, /* point is inside '..' string */
get_tagname, /* point is after PROCEDURE/FUNCTION
is a FORWARD/EXTERN to be ignored, or
whether it is a real tag */
+ save_lcno = save_lineno = save_len = 0; /* keep compiler quiet */
+ namebuf = NULL; /* keep compiler quiet */
lineno = 0;
charno = 0;
dbp = lb.buffer;
*dbp = '\0';
- save_len = 0;
initbuffer (&tline);
incomment = inquote = FALSE;
inparms = FALSE; /* found '(' after "proc" */
verify_tag = FALSE; /* check if "extern" is ahead */
- /* long main loop to get next char */
- while (!feof (inf))
+
+ while (!feof (inf)) /* long main loop to get next char */
{
c = *dbp++;
if (c == '\0') /* if end of line */
dbp = lb.buffer;
if (*dbp == '\0')
continue;
- if (!((found_tag && verify_tag) ||
- get_tagname))
+ if (!((found_tag && verify_tag)
+ || get_tagname))
c = *dbp++; /* only if don't need *dbp pointing
to the beginning of the name of
the procedure or function */
continue;
/* save all values for later tagging */
- GROW_LINEBUFFER (tline, strlen (lb.buffer) + 1);
+ grow_linebuffer (&tline, lb.len + 1);
strcpy (tline.buffer, lb.buffer);
save_lineno = lineno;
save_lcno = linecharno;
/* grab block name */
- for (cp = dbp + 1; *cp && (!endtoken (*cp)); cp++)
+ for (cp = dbp + 1; *cp != '\0' && !endtoken (*cp); cp++)
continue;
- namebuf = (CTAGS) ? savenstr (dbp, cp-dbp) : NULL;
+ namebuf = savenstr (dbp, cp-dbp);
dbp = cp; /* set dbp to e-o-token */
save_len = dbp - lb.buffer + 1;
get_tagname = FALSE;
* lisp tag functions
* look for (def or (DEF, quote or QUOTE
*/
-int
+
+static int L_isdef P_((char *));
+static int L_isquote P_((char *));
+static void L_getit P_((void));
+
+static int
L_isdef (strp)
register char *strp;
{
&& (strp[3] == 'f' || strp[3] == 'F'));
}
-int
+static int
L_isquote (strp)
register char *strp;
{
- return ((*(++strp) == 'q' || *strp == 'Q')
- && (*(++strp) == 'u' || *strp == 'U')
- && (*(++strp) == 'o' || *strp == 'O')
- && (*(++strp) == 't' || *strp == 'T')
- && (*(++strp) == 'e' || *strp == 'E')
- && isspace(*(++strp)));
+ return ((*++strp == 'q' || *strp == 'Q')
+ && (*++strp == 'u' || *strp == 'U')
+ && (*++strp == 'o' || *strp == 'O')
+ && (*++strp == 't' || *strp == 'T')
+ && (*++strp == 'e' || *strp == 'E')
+ && iswhite (*++strp));
}
-void
+static void
L_getit ()
{
register char *cp;
if (*dbp == '\'') /* Skip prefix quote */
dbp++;
- else if (*dbp == '(' && L_isquote (dbp)) /* Skip "(quote " */
+ else if (*dbp == '(')
{
- dbp += 7;
- while (isspace(*dbp))
- dbp++;
+ if (L_isquote (dbp))
+ dbp += 7; /* Skip "(quote " */
+ else
+ dbp += 1; /* Skip "(" before name in (defstruct (foo)) */
+ dbp = skip_spaces (dbp);
}
+
for (cp = dbp /*+1*/;
- *cp && *cp != '(' && *cp != ' ' && *cp != ')';
+ *cp != '\0' && *cp != '(' && !iswhite(*cp) && *cp != ')';
cp++)
continue;
if (cp == dbp)
return;
- pfnote ((CTAGS) ? savenstr (dbp, cp-dbp) : NULL, TRUE,
+ pfnote (savenstr (dbp, cp-dbp), TRUE,
lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
}
-void
+static void
Lisp_functions (inf)
FILE *inf;
{
- lineno = 0;
- charno = 0;
-
- while (!feof (inf))
+ LOOP_ON_INPUT_LINES (inf, lb, dbp)
{
- lineno++;
- linecharno = charno;
- charno += readline (&lb, inf);
- dbp = lb.buffer;
if (dbp[0] == '(')
{
if (L_isdef (dbp))
{
- while (!isspace (*dbp))
- dbp++;
- while (isspace (*dbp))
- dbp++;
+ dbp = skip_non_spaces (dbp);
+ dbp = skip_spaces (dbp);
L_getit ();
}
else
/* Check for (foo::defmumble name-defined ... */
do
dbp++;
- while (*dbp && !isspace (*dbp)
+ while (*dbp != '\0' && !iswhite (*dbp)
&& *dbp != ':' && *dbp != '(' && *dbp != ')');
if (*dbp == ':')
{
if (L_isdef (dbp - 1))
{
- while (!isspace (*dbp))
- dbp++;
- while (isspace (*dbp))
- dbp++;
+ dbp = skip_non_spaces (dbp);
+ dbp = skip_spaces (dbp);
L_getit ();
}
}
}
}
}
+\f
+/*
+ * Postscript tag functions
+ * Just look for lines where the first character is '/'
+ * Richard Mlynarik <mly@adoc.xerox.com>
+ * Also look at "defineps" for PSWrap
+ * suggested by Masatake YAMATO <masata-y@is.aist-nara.ac.jp>
+ */
+static void
+Postscript_functions (inf)
+ FILE *inf;
+{
+ register char *bp, *ep;
+
+ LOOP_ON_INPUT_LINES (inf, lb, bp)
+ {
+ if (bp[0] == '/')
+ {
+ for (ep = bp+1;
+ *ep != '\0' && *ep != ' ' && *ep != '{';
+ ep++)
+ continue;
+ pfnote (savenstr (bp, ep-bp), TRUE,
+ lb.buffer, ep - lb.buffer + 1, lineno, linecharno);
+ }
+ else if (strneq (bp, "defineps", 8))
+ {
+ bp = skip_non_spaces (bp);
+ bp = skip_spaces (bp);
+ get_tag (bp);
+ }
+ }
+}
+
\f
/*
* Scheme tag functions
* look for (set! xyzzy
*/
-void get_scheme ();
-
-void
+static void
Scheme_functions (inf)
FILE *inf;
{
- lineno = 0;
- charno = 0;
+ register char *bp;
- while (!feof (inf))
+ LOOP_ON_INPUT_LINES (inf, lb, bp)
{
- lineno++;
- linecharno = charno;
- charno += readline (&lb, inf);
- dbp = lb.buffer;
- if (dbp[0] == '(' &&
- (dbp[1] == 'D' || dbp[1] == 'd') &&
- (dbp[2] == 'E' || dbp[2] == 'e') &&
- (dbp[3] == 'F' || dbp[3] == 'f'))
+ if (bp[0] == '('
+ && (bp[1] == 'D' || bp[1] == 'd')
+ && (bp[2] == 'E' || bp[2] == 'e')
+ && (bp[3] == 'F' || bp[3] == 'f'))
{
- while (!isspace (*dbp))
- dbp++;
+ bp = skip_non_spaces (bp);
/* Skip over open parens and white space */
- while (*dbp && (isspace (*dbp) || *dbp == '('))
- dbp++;
- get_scheme ();
+ while (iswhite (*bp) || *bp == '(')
+ bp++;
+ get_tag (bp);
}
- if (dbp[0] == '(' &&
- (dbp[1] == 'S' || dbp[1] == 's') &&
- (dbp[2] == 'E' || dbp[2] == 'e') &&
- (dbp[3] == 'T' || dbp[3] == 't') &&
- (dbp[4] == '!' || dbp[4] == '!') &&
- (isspace (dbp[5])))
+ if (bp[0] == '('
+ && (bp[1] == 'S' || bp[1] == 's')
+ && (bp[2] == 'E' || bp[2] == 'e')
+ && (bp[3] == 'T' || bp[3] == 't')
+ && (bp[4] == '!' || bp[4] == '!')
+ && (iswhite (bp[5])))
{
- while (!isspace (*dbp))
- dbp++;
- /* Skip over white space */
- while (isspace (*dbp))
- dbp++;
- get_scheme ();
+ bp = skip_non_spaces (bp);
+ bp = skip_spaces (bp);
+ get_tag (bp);
}
}
}
-
-void
-get_scheme ()
-{
- register char *cp;
-
- if (*dbp == '\0')
- return;
- /* Go till you get to white space or a syntactic break */
- for (cp = dbp + 1;
- *cp && *cp != '(' && *cp != ')' && !isspace (*cp);
- cp++)
- continue;
- pfnote ((CTAGS) ? savenstr (dbp, cp-dbp) : NULL, TRUE,
- lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
-}
\f
/* Find tags in TeX and LaTeX input files. */
:chapter:section:subsection:subsubsection:eqno:label:ref:cite:bibitem\
:part:appendix:entry:index";
-void TEX_mode ();
-struct TEX_tabent *TEX_decode_env ();
-int TEX_Token ();
-#if TeX_named_tokens
-void TEX_getit ();
-#endif
+static void TEX_mode P_((FILE *));
+static struct TEX_tabent *TEX_decode_env P_((char *, char *));
+static int TEX_Token P_((char *));
char TEX_esc = '\\';
char TEX_opgrp = '{';
/*
* TeX/LaTeX scanning loop.
*/
-void
+static void
TeX_functions (inf)
FILE *inf;
{
- char *lasthit;
-
- lineno = 0;
- charno = 0;
+ char *cp, *lasthit;
+ register int i;
/* Select either \ or ! as escape character. */
TEX_mode (inf);
if (!TEX_toktab)
TEX_toktab = TEX_decode_env ("TEXTAGS", TEX_defenv);
- while (!feof (inf))
- { /* Scan each line in file */
- lineno++;
- linecharno = charno;
- charno += readline (&lb, inf);
- dbp = lb.buffer;
- lasthit = dbp;
- while (dbp = etags_strchr (dbp, TEX_esc)) /* Look at each esc in line */
+ LOOP_ON_INPUT_LINES (inf, lb, cp)
+ {
+ lasthit = cp;
+ /* Look at each esc in line. */
+ while ((cp = etags_strchr (cp, TEX_esc)) != NULL)
{
- register int i;
-
- if (!*(++dbp))
+ if (*++cp == '\0')
break;
- linecharno += dbp - lasthit;
- lasthit = dbp;
+ linecharno += cp - lasthit;
+ lasthit = cp;
i = TEX_Token (lasthit);
- if (0 <= i)
+ if (i >= 0)
{
- pfnote (NULL, TRUE,
- lb.buffer, strlen (lb.buffer), lineno, linecharno);
-#if TeX_named_tokens
- TEX_getit (lasthit, TEX_toktab[i].len);
-#endif
- break; /* We only save a line once */
+ /* We seem to include the TeX command in the tag name.
+ register char *p;
+ for (p = lasthit + TEX_toktab[i].len;
+ *p != '\0' && *p != TEX_clgrp;
+ p++)
+ continue; */
+ pfnote (/*savenstr (lasthit, p-lasthit)*/ (char *)NULL, TRUE,
+ lb.buffer, lb.len, lineno, linecharno);
+ break; /* We only tag a line once */
}
}
}
/* Figure out whether TeX's escapechar is '\\' or '!' and set grouping
chars accordingly. */
-void
+static void
TEX_mode (inf)
FILE *inf;
{
TEX_opgrp = '<';
TEX_clgrp = '>';
}
+ /* If the input file is compressed, inf is a pipe, and rewind may fail.
+ No attempt is made to correct the situation. */
rewind (inf);
}
/* Read environment and prepend it to the default string.
Build token table. */
-struct TEX_tabent *
+static struct TEX_tabent *
TEX_decode_env (evarname, defenv)
char *evarname;
char *defenv;
if (!env)
env = defenv;
else
- env = concat (env, defenv, "");
+ {
+ char *oldenv = env;
+ env = concat (oldenv, defenv, "");
+ }
/* Allocate a token table */
for (size = 1, p = env; p;)
- if ((p = etags_strchr (p, ':')) && *(++p))
+ if ((p = etags_strchr (p, ':')) && *++p != '\0')
size++;
/* Add 1 to leave room for null terminator. */
tab = xnew (size + 1, struct TEX_tabent);
return tab;
}
-#if TeX_named_tokens
-/* Record a tag defined by a TeX command of length LEN and starting at NAME.
- The name being defined actually starts at (NAME + LEN + 1).
- But we seem to include the TeX command in the tag name. */
-void
-TEX_getit (name, len)
- char *name;
- int len;
-{
- char *p = name + len;
-
- if (*name == '\0')
- return;
-
- /* Let tag name extend to next group close (or end of line) */
- while (*p && *p != TEX_clgrp)
- p++;
- pfnote (savenstr (name, p-name), TRUE,
- lb.buffer, strlen (lb.buffer), lineno, linecharno);
-}
-#endif
-
/* If the text at CP matches one of the tag-defining TeX command names,
return the pointer to the first occurrence of that command in TEX_toktab.
Otherwise return -1.
- Keep the capital `T' in `Token' for dumb truncating compilers
+ Keep the capital `T' in `token' for dumb truncating compilers
(this distinguishes it from `TEX_toktab' */
-int
+static int
TEX_Token (cp)
char *cp;
{
* Prolog support (rewritten) by Anders Lindgren, Mar. 96
*
* Assumes that the predicate starts at column 0.
- * Only the first clause of a predicate is added.
+ * Only the first clause of a predicate is added.
*/
-void
+static int prolog_pred P_((char *, char *));
+static void prolog_skip_comment P_((linebuffer *, FILE *));
+static int prolog_atom P_((char *, int));
+
+static void
Prolog_functions (inf)
FILE *inf;
{
- int prolog_pred ();
- void prolog_skip_comment ();
-
- char * last;
+ char *cp, *last;
int len;
int allocated;
len = 0;
last = NULL;
- lineno = 0;
- linecharno = 0;
- charno = 0;
-
- while (!feof (inf))
+ LOOP_ON_INPUT_LINES (inf, lb, cp)
{
- lineno++;
- linecharno += charno;
- charno = readline (&lb, inf);
- dbp = lb.buffer;
- if (dbp[0] == '\0') /* Empty line */
+ if (cp[0] == '\0') /* Empty line */
continue;
- else if (isspace (dbp[0])) /* Not a predicate */
+ else if (iswhite (cp[0])) /* Not a predicate */
continue;
- else if (dbp[0] == '/' && dbp[1] == '*') /* comment. */
- prolog_skip_comment (&lb, inf, &lineno, &linecharno);
- else if (len = prolog_pred (dbp, last))
+ else if (cp[0] == '/' && cp[1] == '*') /* comment. */
+ prolog_skip_comment (&lb, inf);
+ else if ((len = prolog_pred (cp, last)) > 0)
{
/* Predicate. Store the function name so that we only
- * generates a tag for the first clause. */
+ generate a tag for the first clause. */
if (last == NULL)
last = xnew(len + 1, char);
else if (len + 1 > allocated)
- last = (char *) xrealloc(last, len + 1);
+ last = xrnew (last, len + 1, char);
allocated = len + 1;
- strncpy (last, dbp, len);
+ strncpy (last, cp, len);
last[len] = '\0';
}
}
}
-void
+static void
prolog_skip_comment (plb, inf)
- struct linebuffer *plb;
+ linebuffer *plb;
FILE *inf;
{
char *cp;
* Return the size of the name of the predicate, or 0 if no header
* was found.
*/
-int
+static int
prolog_pred (s, last)
char *s;
char *last; /* Name of last clause. */
{
- int prolog_atom();
- int prolog_white();
-
int pos;
int len;
- pos = prolog_atom(s, 0);
+ pos = prolog_atom (s, 0);
if (pos < 1)
return 0;
len = pos;
- pos += prolog_white(s, pos);
+ pos = skip_spaces (s + pos) - s;
if ((s[pos] == '(') || (s[pos] == '.'))
{
pos++;
/* Save only the first clause. */
- if ((last == NULL) ||
- (len != strlen(last)) ||
- (strncmp(s, last, len) != 0))
+ if (last == NULL
+ || len != (int)strlen (last)
+ || !strneq (s, last, len))
{
- pfnote ((CTAGS) ? savenstr (s, len) : NULL, TRUE,
- s, pos, lineno, linecharno);
+ pfnote (savenstr (s, len), TRUE, s, pos, lineno, linecharno);
return len;
}
}
* - A quoted arbitrary string. Single quotes can escape themselves.
* Backslash quotes everything.
*/
-int
+static int
prolog_atom (s, pos)
char *s;
int pos;
{
pos++;
- while (1)
+ while (1)
{
if (s[pos] == '\'')
{
else
return -1;
}
-
-/* Consume whitespace. Return the number of bytes eaten. */
-int
-prolog_white (s, pos)
- char *s;
- int pos;
-{
- int origpos;
-
- origpos = pos;
-
- while (isspace(s[pos]))
- pos++;
-
- return pos - origpos;
-}
\f
-/*
+/*
* Support for Erlang -- Anders Lindgren, Feb 1996.
*
* Generates tags for functions, defines, and records.
*
* Assumes that Erlang functions start at column 0.
*/
-void
+static int erlang_func P_((char *, char *));
+static void erlang_attribute P_((char *));
+static int erlang_atom P_((char *, int));
+
+static void
Erlang_functions (inf)
FILE *inf;
{
- int erlang_func ();
- void erlang_attribute ();
-
- char * last;
+ char *cp, *last;
int len;
int allocated;
len = 0;
last = NULL;
- lineno = 0;
- linecharno = 0;
- charno = 0;
-
- while (!feof (inf))
+ LOOP_ON_INPUT_LINES (inf, lb, cp)
{
- lineno++;
- linecharno += charno;
- charno = readline (&lb, inf);
- dbp = lb.buffer;
- if (dbp[0] == '\0') /* Empty line */
+ if (cp[0] == '\0') /* Empty line */
continue;
- else if (isspace (dbp[0])) /* Not function nor attribute */
+ else if (iswhite (cp[0])) /* Not function nor attribute */
continue;
- else if (dbp[0] == '%') /* comment */
+ else if (cp[0] == '%') /* comment */
continue;
- else if (dbp[0] == '"') /* Sometimes, strings start in column one */
+ else if (cp[0] == '"') /* Sometimes, strings start in column one */
continue;
- else if (dbp[0] == '-') /* attribute, e.g. "-define" */
+ else if (cp[0] == '-') /* attribute, e.g. "-define" */
{
- erlang_attribute(dbp);
+ erlang_attribute (cp);
last = NULL;
}
- else if (len = erlang_func (dbp, last))
+ else if ((len = erlang_func (cp, last)) > 0)
{
- /*
+ /*
* Function. Store the function name so that we only
* generates a tag for the first clause.
*/
if (last == NULL)
- last = xnew(len + 1, char);
+ last = xnew (len + 1, char);
else if (len + 1 > allocated)
- last = (char *) xrealloc(last, len + 1);
+ last = xrnew (last, len + 1, char);
allocated = len + 1;
- strncpy (last, dbp, len);
+ strncpy (last, cp, len);
last[len] = '\0';
}
}
* Return the size of the name of the function, or 0 if no function
* was found.
*/
-int
+static int
erlang_func (s, last)
char *s;
char *last; /* Name of last clause. */
{
- int erlang_atom ();
- int erlang_white ();
-
int pos;
int len;
- pos = erlang_atom(s, 0);
+ pos = erlang_atom (s, 0);
if (pos < 1)
return 0;
len = pos;
- pos += erlang_white(s, pos);
+ pos = skip_spaces (s + pos) - s;
- if (s[pos++] == '(')
- {
- /* Save only the first clause. */
- if ((last == NULL) ||
- (len != strlen(last)) ||
- (strncmp(s, last, len) != 0))
+ /* Save only the first clause. */
+ if (s[pos++] == '('
+ && (last == NULL
+ || len != (int)strlen (last)
+ || !strneq (s, last, len)))
{
- pfnote ((CTAGS) ? savenstr (s, len) : NULL, TRUE,
- s, pos, lineno, linecharno);
+ pfnote (savenstr (s, len), TRUE, s, pos, lineno, linecharno);
return len;
}
- }
+
return 0;
}
/*
- * Handle attributes. Currently, tags are generated for defines
+ * Handle attributes. Currently, tags are generated for defines
* and records.
*
* They are on the form:
* -define(Foo(M, N), M+N).
* -record(graph, {vtab = notable, cyclic = true}).
*/
-void
+static void
erlang_attribute (s)
char *s;
{
- int erlang_atom ();
- int erlang_white ();
-
int pos;
int len;
- if ((strncmp(s, "-define", 7) == 0) ||
- (strncmp(s, "-record", 7) == 0))
+ if (strneq (s, "-define", 7) || strneq (s, "-record", 7))
{
- pos = 7;
- pos += erlang_white(s, pos);
-
- if (s[pos++] == '(')
+ pos = skip_spaces (s + 7) - s;
+ if (s[pos++] == '(')
{
- pos += erlang_white(s, pos);
-
- if (len = erlang_atom(s, pos))
- {
- pfnote ((CTAGS) ? savenstr (& s[pos], len) : NULL, TRUE,
- s, pos + len, lineno, linecharno);
- }
+ pos = skip_spaces (s + pos) - s;
+ len = erlang_atom (s, pos);
+ if (len != 0)
+ pfnote (savenstr (& s[pos], len), TRUE,
+ s, pos + len, lineno, linecharno);
}
}
return;
* Consume an Erlang atom (or variable).
* Return the number of bytes consumed, or -1 if there was an error.
*/
-int
+static int
erlang_atom (s, pos)
char *s;
int pos;
{
pos++;
- while (1)
+ while (1)
{
if (s[pos] == '\'')
{
else
return -1;
}
-
-/* Consume whitespace. Return the number of bytes eaten */
-int
-erlang_white (s, pos)
- char *s;
- int pos;
-{
- int origpos;
-
- origpos = pos;
-
- while (isspace (s[pos]))
- pos++;
-
- return pos - origpos;
-}
\f
#ifdef ETAGS_REGEXPS
+
+static char *scan_separators P_((char *));
+static void analyse_regex P_((char *, bool));
+static void add_regex P_((char *, bool, language *));
+static char *substitute P_((char *, char *, struct re_registers *));
+
/* Take a string like "/blah/" and turn it into "blah", making sure
that the first and last characters are the same, and handling
quoted separator characters. Actually, stops on the occurrence of
an unquoted separator. Also turns "\t" into a Tab character.
Returns pointer to terminating separator. Works in place. Null
terminates name string. */
-char *
+static char *
scan_separators (name)
char *name;
{
char sep = name[0];
char *copyto = name;
- logical quoted = FALSE;
+ bool quoted = FALSE;
for (++name; *name != '\0'; ++name)
{
return name;
}
+/* Look at the argument of --regex or --no-regex and do the right
+ thing. Same for each line of a regexp file. */
+static void
+analyse_regex (regex_arg, ignore_case)
+ char *regex_arg;
+ bool ignore_case;
+{
+ if (regex_arg == NULL)
+ free_patterns (); /* --no-regex: remove existing regexps */
+
+ /* A real --regexp option or a line in a regexp file. */
+ switch (regex_arg[0])
+ {
+ /* Comments in regexp file or null arg to --regex. */
+ case '\0':
+ case ' ':
+ case '\t':
+ break;
+
+ /* Read a regex file. This is recursive and may result in a
+ loop, which will stop when the file descriptors are exhausted. */
+ case '@':
+ {
+ FILE *regexfp;
+ linebuffer regexbuf;
+ char *regexfile = regex_arg + 1;
+
+ /* regexfile is a file containing regexps, one per line. */
+ regexfp = fopen (regexfile, "r");
+ if (regexfp == NULL)
+ {
+ pfatal (regexfile);
+ return;
+ }
+ initbuffer (®exbuf);
+ while (readline_internal (®exbuf, regexfp) > 0)
+ analyse_regex (regexbuf.buffer, ignore_case);
+ free (regexbuf.buffer);
+ fclose (regexfp);
+ }
+ break;
+
+ /* Regexp to be used for a specific language only. */
+ case '{':
+ {
+ language *lang;
+ char *lang_name = regex_arg + 1;
+ char *cp;
+
+ for (cp = lang_name; *cp != '}'; cp++)
+ if (*cp == '\0')
+ {
+ error ("unterminated language name in regex: %s", regex_arg);
+ return;
+ }
+ *cp = '\0';
+ lang = get_language_from_name (lang_name);
+ if (lang == NULL)
+ return;
+ add_regex (cp + 1, ignore_case, lang);
+ }
+ break;
+
+ /* Regexp to be used for any language. */
+ default:
+ add_regex (regex_arg, ignore_case, NULL);
+ break;
+ }
+}
+
/* Turn a name, which is an ed-style (but Emacs syntax) regular
expression, into a real regular expression by compiling it. */
-void
-add_regex (regexp_pattern)
+static void
+add_regex (regexp_pattern, ignore_case, lang)
char *regexp_pattern;
+ bool ignore_case;
+ language *lang;
{
char *name;
const char *err;
struct re_pattern_buffer *patbuf;
+ pattern *pp;
- if (regexp_pattern == NULL)
- {
- /* Remove existing regexps. */
- num_patterns = 0;
- patterns = NULL;
- return;
- }
- if (regexp_pattern[0] == '\0')
- {
- error ("missing regexp", 0);
- return;
- }
if (regexp_pattern[strlen(regexp_pattern)-1] != regexp_pattern[0])
{
error ("%s: unterminated regexp", regexp_pattern);
name = scan_separators (regexp_pattern);
if (regexp_pattern[0] == '\0')
{
- error ("null regexp", 0);
+ error ("null regexp", (char *)NULL);
return;
}
(void) scan_separators (name);
patbuf = xnew (1, struct re_pattern_buffer);
- patbuf->translate = NULL;
+ /* Translation table to fold case if appropriate. */
+ patbuf->translate = (ignore_case) ? lc_trans : NULL;
patbuf->fastmap = NULL;
patbuf->buffer = NULL;
patbuf->allocated = 0;
return;
}
- num_patterns += 1;
- if (num_patterns == 1)
- patterns = xnew (1, struct pattern);
- else
- patterns = ((struct pattern *)
- xrealloc (patterns,
- (num_patterns * sizeof (struct pattern))));
- patterns[num_patterns - 1].pattern = patbuf;
- patterns[num_patterns - 1].name_pattern = savestr (name);
- patterns[num_patterns - 1].error_signaled = FALSE;
+ pp = p_head;
+ p_head = xnew (1, pattern);
+ p_head->regex = savestr (regexp_pattern);
+ p_head->p_next = pp;
+ p_head->language = lang;
+ p_head->pattern = patbuf;
+ p_head->name_pattern = savestr (name);
+ p_head->error_signaled = FALSE;
}
/*
* Do the substitutions indicated by the regular expression and
* arguments.
*/
-char *
+static char *
substitute (in, out, regs)
char *in, *out;
struct re_registers *regs;
{
- char *result = NULL, *t;
- int size = 0;
-
- /* Pass 1: figure out how much size to allocate. */
- for (t = out; *t; ++t)
- {
- if (*t == '\\')
- {
- ++t;
- if (!*t)
- {
- fprintf (stderr, "%s: pattern substitution ends prematurely\n",
- progname);
- return NULL;
- }
- if (isdigit (*t))
- {
- int dig = *t - '0';
- size += regs->end[dig] - regs->start[dig];
- }
- }
- }
+ char *result, *t;
+ int size, dig, diglen;
+
+ result = NULL;
+ size = strlen (out);
+
+ /* Pass 1: figure out how much to allocate by finding all \N strings. */
+ if (out[size - 1] == '\\')
+ fatal ("pattern error in \"%s\"", out);
+ for (t = etags_strchr (out, '\\');
+ t != NULL;
+ t = etags_strchr (t + 2, '\\'))
+ if (isdigit (t[1]))
+ {
+ dig = t[1] - '0';
+ diglen = regs->end[dig] - regs->start[dig];
+ size += diglen - 2;
+ }
+ else
+ size -= 1;
/* Allocate space and do the substitutions. */
result = xnew (size + 1, char);
- size = 0;
- for (; *out; ++out)
- {
- if (*out == '\\')
- {
- ++out;
- if (isdigit (*out))
- {
- /* Using "dig2" satisfies my debugger. Bleah. */
- int dig2 = *out - '0';
- strncpy (result + size, in + regs->start[dig2],
- regs->end[dig2] - regs->start[dig2]);
- size += regs->end[dig2] - regs->start[dig2];
- }
- else
- result[size++] = *out;
- }
- else
- result[size++] = *out;
- }
- result[size] = '\0';
+
+ for (t = result; *out != '\0'; out++)
+ if (*out == '\\' && isdigit (*++out))
+ {
+ /* Using "dig2" satisfies my debugger. Bleah. */
+ dig = *out - '0';
+ diglen = regs->end[dig] - regs->start[dig];
+ strncpy (t, in + regs->start[dig], diglen);
+ t += diglen;
+ }
+ else
+ *t++ = *out;
+ *t = '\0';
+
+ if (DEBUG && (t > result + size || t - result != (int)strlen (result)))
+ abort ();
return result;
}
+
+/* Deallocate all patterns. */
+static void
+free_patterns ()
+{
+ pattern *pp;
+ while (p_head != NULL)
+ {
+ pp = p_head->p_next;
+ free (p_head->regex);
+ free (p_head->name_pattern);
+ free (p_head);
+ p_head = pp;
+ }
+ return;
+}
\f
+static void
+get_tag (bp)
+ register char *bp;
+{
+ register char *cp;
+
+ if (*bp == '\0')
+ return;
+ /* Go till you get to white space or a syntactic break */
+ for (cp = bp + 1;
+ *cp != '\0' && *cp != '(' && *cp != ')' && !iswhite (*cp);
+ cp++)
+ continue;
+ pfnote (savenstr (bp, cp-bp), TRUE,
+ lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+}
+
#endif /* ETAGS_REGEXPS */
/* Initialize a linebuffer for use */
-void
-initbuffer (linebuffer)
- struct linebuffer *linebuffer;
+static void
+initbuffer (lbp)
+ linebuffer *lbp;
{
- linebuffer->size = 200;
- linebuffer->buffer = xnew (200, char);
+ lbp->size = 200;
+ lbp->buffer = xnew (200, char);
}
/*
- * Read a line of text from `stream' into `linebuffer'.
- * Return the number of characters read from `stream',
- * which is the length of the line including the newline, if any.
+ * Read a line of text from `stream' into `lbp', excluding the
+ * newline or CR-NL, if any. Return the number of characters read from
+ * `stream', which is the length of the line including the newline.
+ *
+ * On DOS or Windows we do not count the CR character, if any, before the
+ * NL, in the returned length; this mirrors the behavior of emacs on those
+ * platforms (for text files, it translates CR-NL to NL as it reads in the
+ * file).
*/
-long
-readline_internal (linebuffer, stream)
- struct linebuffer *linebuffer;
+static long
+readline_internal (lbp, stream)
+ linebuffer *lbp;
register FILE *stream;
{
- char *buffer = linebuffer->buffer;
- register char *p = linebuffer->buffer;
+ char *buffer = lbp->buffer;
+ register char *p = lbp->buffer;
register char *pend;
int chars_deleted;
- pend = p + linebuffer->size; /* Separate to avoid 386/IX compiler bug. */
+ pend = p + lbp->size; /* Separate to avoid 386/IX compiler bug. */
while (1)
{
register int c = getc (stream);
if (p == pend)
{
- linebuffer->size *= 2;
- buffer = (char *) xrealloc (buffer, linebuffer->size);
- p += buffer - linebuffer->buffer;
- pend = buffer + linebuffer->size;
- linebuffer->buffer = buffer;
+ /* We're at the end of linebuffer: expand it. */
+ lbp->size *= 2;
+ buffer = xrnew (buffer, lbp->size, char);
+ p += buffer - lbp->buffer;
+ pend = buffer + lbp->size;
+ lbp->buffer = buffer;
}
if (c == EOF)
{
{
if (p > buffer && p[-1] == '\r')
{
- *--p = '\0';
+ p -= 1;
+#ifdef DOS_NT
+ /* Assume CRLF->LF translation will be performed by Emacs
+ when loading this file, so CRs won't appear in the buffer.
+ It would be cleaner to compensate within Emacs;
+ however, Emacs does not know how many CRs were deleted
+ before any given point in the file. */
+ chars_deleted = 1;
+#else
chars_deleted = 2;
+#endif
}
else
{
- *p = '\0';
chars_deleted = 1;
}
+ *p = '\0';
break;
}
*p++ = c;
}
+ lbp->len = p - buffer;
- return p - buffer + chars_deleted;
+ return lbp->len + chars_deleted;
}
/*
- * Like readline_internal, above, but try to match the input
- * line against any existing regular expressions.
+ * Like readline_internal, above, but in addition try to match the
+ * input line against relevant regular expressions.
*/
-long
-readline (linebuffer, stream)
- struct linebuffer *linebuffer;
+static long
+readline (lbp, stream)
+ linebuffer *lbp;
FILE *stream;
{
/* Read new line. */
- long result = readline_internal (linebuffer, stream);
+ long result = readline_internal (lbp, stream);
#ifdef ETAGS_REGEXPS
- int i;
+ int match;
+ pattern *pp;
- /* Match against all listed patterns. */
- for (i = 0; i < num_patterns; ++i)
- {
- int match = re_match (patterns[i].pattern, linebuffer->buffer,
- (int)result, 0, &patterns[i].regs);
- switch (match)
- {
- case -2:
- /* Some error. */
- if (!patterns[i].error_signaled)
- {
- error ("error while matching pattern %d", i);
- patterns[i].error_signaled = TRUE;
- }
- break;
- case -1:
- /* No match. */
- break;
- default:
- /* Match occurred. Construct a tag. */
- if (patterns[i].name_pattern[0] != '\0')
- {
- /* Make a named tag. */
- char *name = substitute (linebuffer->buffer,
- patterns[i].name_pattern,
- &patterns[i].regs);
- if (name != NULL)
- pfnote (name, TRUE,
- linebuffer->buffer, match, lineno, linecharno);
- }
- else
- {
- /* Make an unnamed tag. */
- pfnote (NULL, TRUE,
- linebuffer->buffer, match, lineno, linecharno);
- }
- break;
- }
- }
+ /* Match against relevant patterns. */
+ if (lbp->len > 0)
+ for (pp = p_head; pp != NULL; pp = pp->p_next)
+ {
+ /* Only use generic regexps or those for the current language. */
+ if (pp->language != NULL && pp->language != curlang)
+ continue;
+
+ match = re_match (pp->pattern, lbp->buffer, lbp->len, 0, &pp->regs);
+ switch (match)
+ {
+ case -2:
+ /* Some error. */
+ if (!pp->error_signaled)
+ {
+ error ("error while matching \"%s\"", pp->regex);
+ pp->error_signaled = TRUE;
+ }
+ break;
+ case -1:
+ /* No match. */
+ break;
+ default:
+ /* Match occurred. Construct a tag. */
+ if (pp->name_pattern[0] != '\0')
+ {
+ /* Make a named tag. */
+ char *name = substitute (lbp->buffer,
+ pp->name_pattern, &pp->regs);
+ if (name != NULL)
+ pfnote (name, TRUE, lbp->buffer, match, lineno, linecharno);
+ }
+ else
+ {
+ /* Make an unnamed tag. */
+ pfnote ((char *)NULL, TRUE,
+ lbp->buffer, match, lineno, linecharno);
+ }
+ break;
+ }
+ }
#endif /* ETAGS_REGEXPS */
return result;
}
-
-/*
- * Read a file, but do no processing. This is used to do regexp
- * matching on files that have no language defined.
- */
-void
-just_read_file (inf)
- FILE *inf;
-{
- lineno = 0;
- charno = 0;
-
- while (!feof (inf))
- {
- ++lineno;
- linecharno = charno;
- charno += readline (&lb, inf) + 1;
- }
-}
-
\f
/*
* Return a pointer to a space of size strlen(cp)+1 allocated
* with xnew where the string CP has been copied.
*/
-char *
+static char *
savestr (cp)
char *cp;
{
* Return a pointer to a space of size LEN+1 allocated with xnew where
* the string CP has been copied for at most the first LEN characters.
*/
-char *
+static char *
savenstr (cp, len)
char *cp;
int len;
* Return the ptr in sp at which the character c last
* appears; NULL if not found
*
- * Identical to System V strrchr, included for portability.
+ * Identical to POSIX strrchr, included for portability.
*/
-char *
+static char *
etags_strrchr (sp, c)
- register char *sp, c;
+ register const char *sp;
+ register int c;
{
- register char *r;
+ register const char *r;
r = NULL;
do
if (*sp == c)
r = sp;
} while (*sp++);
- return r;
+ return (char *)r;
}
* Return the ptr in sp at which the character c first
* appears; NULL if not found
*
- * Identical to System V strchr, included for portability.
+ * Identical to POSIX strchr, included for portability.
*/
-char *
+static char *
etags_strchr (sp, c)
- register char *sp, c;
+ register const char *sp;
+ register int c;
{
do
{
if (*sp == c)
- return sp;
+ return (char *)sp;
} while (*sp++);
return NULL;
}
+/* Skip spaces, return new pointer. */
+static char *
+skip_spaces (cp)
+ char *cp;
+{
+ while (iswhite (*cp))
+ cp++;
+ return cp;
+}
+
+/* Skip non spaces, return new pointer. */
+static char *
+skip_non_spaces (cp)
+ char *cp;
+{
+ while (*cp != '\0' && !iswhite (*cp))
+ cp++;
+ return cp;
+}
+
/* Print error message and exit. */
-void
+static void
fatal (s1, s2)
char *s1, *s2;
{
exit (BAD);
}
-void
+static void
pfatal (s1)
char *s1;
{
exit (BAD);
}
-void
+static void
suggest_asking_for_help ()
{
- fprintf (stderr, "\tTry `%s --help' for a complete list of options.\n",
- progname);
+ fprintf (stderr, "\tTry `%s %s' for a complete list of options.\n",
+ progname,
+#ifdef LONG_OPTIONS
+ "--help"
+#else
+ "-h"
+#endif
+ );
exit (BAD);
}
/* Print error message. `s1' is printf control string, `s2' is arg for it. */
-void
+static void
error (s1, s2)
- char *s1, *s2;
+ const char *s1, *s2;
{
fprintf (stderr, "%s: ", progname);
fprintf (stderr, s1, s2);
/* Return a newly-allocated string whose contents
concatenate those of s1, s2, s3. */
-char *
+static char *
concat (s1, s2, s3)
char *s1, *s2, *s3;
{
\f
/* Does the same work as the system V getcwd, but does not need to
guess the buffer size in advance. */
-char *
+static char *
etags_getcwd ()
{
-#ifdef MSDOS
- char *p, path[MAXPATHLEN + 1]; /* Fixed size is safe on MSDOS. */
-
- getwd (path);
- for (p = path; *p != '\0'; p++)
- if (*p == '\\')
- *p = '/';
- else
- *p = lowcase (*p);
-
- return strdup (path);
-#else /* not MSDOS */
-#if HAVE_GETCWD
+#ifdef HAVE_GETCWD
int bufsize = 200;
char *path = xnew (bufsize, char);
if (errno != ERANGE)
pfatal ("getcwd");
bufsize *= 2;
+ free (path);
path = xnew (bufsize, char);
}
+ canonicalize_filename (path);
return path;
-#else /* not MSDOS and not HAVE_GETCWD */
- struct linebuffer path;
+
+#else /* not HAVE_GETCWD */
+#ifdef MSDOS
+ char *p, path[MAXPATHLEN + 1]; /* Fixed size is safe on MSDOS. */
+
+ getwd (path);
+
+ for (p = path; *p != '\0'; p++)
+ if (*p == '\\')
+ *p = '/';
+ else
+ *p = lowcase (*p);
+
+ return strdup (path);
+#else /* not MSDOS */
+ linebuffer path;
FILE *pipe;
initbuffer (&path);
pclose (pipe);
return path.buffer;
-#endif /* not HAVE_GETCWD */
#endif /* not MSDOS */
+#endif /* not HAVE_GETCWD */
}
-/* Return a newly allocated string containing the filename
- of FILE relative to the absolute directory DIR (which
- should end with a slash). */
-char *
+/* Return a newly allocated string containing the file name of FILE
+ relative to the absolute directory DIR (which should end with a slash). */
+static char *
relative_filename (file, dir)
char *file, *dir;
{
- char *fp, *dp, *abs, *res;
+ char *fp, *dp, *afn, *res;
+ int i;
- /* Find the common root of file and dir. */
- abs = absolute_filename (file, cwd);
- fp = abs;
+ /* Find the common root of file and dir (with a trailing slash). */
+ afn = absolute_filename (file, cwd);
+ fp = afn;
dp = dir;
while (*fp++ == *dp++)
continue;
- do
- {
- fp--;
- dp--;
- }
+ fp--, dp--; /* back to the first differing char */
+#ifdef DOS_NT
+ if (fp == afn && afn[0] != '/') /* cannot build a relative name */
+ return afn;
+#endif
+ do /* look at the equal chars until '/' */
+ fp--, dp--;
while (*fp != '/');
- /* Build a sequence of "../" strings for the resulting relative filename. */
- for (dp = etags_strchr (dp + 1, '/'), res = "";
- dp != NULL;
- dp = etags_strchr (dp + 1, '/'))
- {
- res = concat (res, "../", "");
- }
+ /* Build a sequence of "../" strings for the resulting relative file name. */
+ i = 0;
+ while ((dp = etags_strchr (dp + 1, '/')) != NULL)
+ i += 1;
+ res = xnew (3*i + strlen (fp + 1) + 1, char);
+ res[0] = '\0';
+ while (i-- > 0)
+ strcat (res, "../");
- /* Add the filename relative to the common root of file and dir. */
- res = concat (res, fp + 1, "");
- free (abs);
+ /* Add the file name relative to the common root of file and dir. */
+ strcat (res, fp + 1);
+ free (afn);
return res;
}
-/* Return a newly allocated string containing the
- absolute filename of FILE given CWD (which should
- end with a slash). */
-char *
-absolute_filename (file, cwd)
- char *file, *cwd;
+/* Return a newly allocated string containing the absolute file name
+ of FILE given DIR (which should end with a slash). */
+static char *
+absolute_filename (file, dir)
+ char *file, *dir;
{
char *slashp, *cp, *res;
- if (absolutefn (file))
- res = concat (file, "", "");
+ if (filename_is_absolute (file))
+ res = savestr (file);
#ifdef DOS_NT
- /* We don't support non-absolute filenames with a drive
+ /* We don't support non-absolute file names with a drive
letter, like `d:NAME' (it's too much hassle). */
else if (file[1] == ':')
- fatal ("%s: relative filenames with drive letters not supported", file);
+ fatal ("%s: relative file names with drive letters not supported", file);
#endif
else
- res = concat (cwd, file, "");
+ res = concat (dir, file, "");
/* Delete the "/dirname/.." and "/." substrings. */
slashp = etags_strchr (res, '/');
cp = slashp;
do
cp--;
- while (cp >= res && !absolutefn (cp));
- if (*cp == '/')
- {
- strcpy (cp, slashp + 3);
- }
+ while (cp >= res && !filename_is_absolute (cp));
+ if (cp < res)
+ cp = slashp; /* the absolute name begins with "/.." */
#ifdef DOS_NT
/* Under MSDOS and NT we get `d:/NAME' as absolute
- filename, so the luser could say `d:/../NAME'.
+ file name, so the luser could say `d:/../NAME'.
We silently treat this as `d:/NAME'. */
- else if (cp[1] == ':')
- strcpy (cp + 3, slashp + 4);
+ else if (cp[0] != '/')
+ cp = slashp;
#endif
- else /* else (cp == res) */
- {
- if (slashp[3] != '\0')
- strcpy (cp, slashp + 4);
- else
- return ".";
- }
+ strcpy (cp, slashp + 3);
slashp = cp;
continue;
}
slashp = etags_strchr (slashp + 1, '/');
}
- return res;
+ if (res[0] == '\0')
+ return savestr ("/");
+ else
+ return res;
}
/* Return a newly allocated string containing the absolute
- filename of dir where FILE resides given CWD (which should
+ file name of dir where FILE resides given DIR (which should
end with a slash). */
-char *
-absolute_dirname (file, cwd)
- char *file, *cwd;
+static char *
+absolute_dirname (file, dir)
+ char *file, *dir;
{
char *slashp, *res;
char save;
-#ifdef DOS_NT
- char *p;
-
- for (p = file; *p != '\0'; p++)
- if (*p == '\\')
- *p = '/';
-#endif
+ canonicalize_filename (file);
slashp = etags_strrchr (file, '/');
if (slashp == NULL)
- return cwd;
+ return savestr (dir);
save = slashp[1];
slashp[1] = '\0';
- res = absolute_filename (file, cwd);
+ res = absolute_filename (file, dir);
slashp[1] = save;
return res;
}
+/* Whether the argument string is an absolute file name. The argument
+ string must have been canonicalized with canonicalize_filename. */
+static bool
+filename_is_absolute (fn)
+ char *fn;
+{
+ return (fn[0] == '/'
+#ifdef DOS_NT
+ || (isalpha(fn[0]) && fn[1] == ':' && fn[2] == '/')
+#endif
+ );
+}
+
+/* Translate backslashes into slashes. Works in place. */
+static void
+canonicalize_filename (fn)
+ register char *fn;
+{
+#ifdef DOS_NT
+ /* Canonicalize drive letter case. */
+ if (islower (fn[0]))
+ fn[0] = toupper (fn[0]);
+ /* Convert backslashes to slashes. */
+ for (; *fn != '\0'; fn++)
+ if (*fn == '\\')
+ *fn = '/';
+#else
+ /* No action. */
+ fn = NULL; /* shut up the compiler */
+#endif
+}
+
+/* Increase the size of a linebuffer. */
+static void
+grow_linebuffer (lbp, toksize)
+ linebuffer *lbp;
+ int toksize;
+{
+ while (lbp->size < toksize)
+ lbp->size *= 2;
+ lbp->buffer = xrnew (lbp->buffer, lbp->size, char);
+}
+
/* Like malloc but get fatal error if memory is exhausted. */
-long *
+static long *
xmalloc (size)
unsigned int size;
{
long *result = (long *) malloc (size);
if (result == NULL)
- fatal ("virtual memory exhausted", 0);
+ fatal ("virtual memory exhausted", (char *)NULL);
return result;
}
-long *
+static long *
xrealloc (ptr, size)
char *ptr;
unsigned int size;
{
long *result = (long *) realloc (ptr, size);
if (result == NULL)
- fatal ("virtual memory exhausted");
+ fatal ("virtual memory exhausted", (char *)NULL);
return result;
}