* Francesco Potorti` (F.Potorti@cnuce.cnr.it) is the current maintainer.
*/
-char pot_etags_version[] = "@(#) pot revision number is 12.11";
+char pot_etags_version[] = "@(#) pot revision number is 13.31";
#define TRUE 1
#define FALSE 0
+#define _GNU_SOURCE /* enables some compiler checks on GNU */
#ifndef DEBUG
# define DEBUG FALSE
#endif
/* 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
-# define LONG_OPTIONS
-#endif
+# define ETAGS_REGEXPS /* use the regexp features */
+# define LONG_OPTIONS /* accept long options */
+#endif /* HAVE_CONFIG_H */
#ifdef MSDOS
-# include <string.h>
# include <fcntl.h>
# include <sys/param.h>
+# include <io.h>
+# ifndef HAVE_CONFIG_H
+# define DOS_NT
+# include <sys/config.h>
+# endif
#endif /* MSDOS */
#ifdef WINDOWSNT
# include <string.h>
# include <io.h>
# define MAXPATHLEN _MAX_PATH
-#endif
-
-#if !defined (MSDOS) && !defined (WINDOWSNT) && defined (STDC_HEADERS)
+# 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 */
+#endif /* WINDOWSNT */
+
+#if !defined (WINDOWSNT) && defined (STDC_HEADERS)
#include <stdlib.h>
#include <string.h>
#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# ifdef HAVE_GETCWD
+ extern char *getcwd ();
+# 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>
-/* This is to declare getcwd. */
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
#if !defined (S_ISREG) && defined (S_IFREG)
# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
#endif
#define lowcase(c) tolower ((char)c)
#define CHARS 256 /* 2^sizeof(char) */
-#define CHAR(x) ((int)x & (CHARS - 1))
+#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 */
-#ifdef DOS_NT
-# define absolutefn(fn) (fn[0] == '/' \
- || (fn[1] == ':' && fn[2] == '/'))
-#else
-# define absolutefn(fn) (fn[0] == '/')
-#endif
-
/*
- * xnew -- allocate storage
+ * xnew, xrnew -- allocate, reallocate storage
*
* SYNOPSIS: Type *xnew (int n, Type);
+ * Type *xrnew (OldPointer, int n, Type);
*/
#ifdef chkmalloc
# include "chkmalloc.h"
-# define xnew(n,Type) ((Type *) trace_xmalloc (__FILE__, __LINE__, \
- (n) * sizeof (Type)))
+# 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 xnew(n,Type) ((Type *) xmalloc ((n) * sizeof (Type)))
+# define xrnew(op,n,Type) ((Type *) xrealloc ((op), (n) * sizeof (Type)))
#endif
typedef int bool;
-typedef struct nd_st
-{ /* sorting structure */
- char *name; /* function or type name */
- char *file; /* file name */
- 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;
+typedef void Lang_function ();
-extern char *getenv ();
+typedef struct
+{
+ char *suffix;
+ char *command; /* Takes one arg and decompresses to stdout */
+} compressor;
-char *concat ();
-char *savenstr (), *savestr ();
-char *etags_strchr (), *etags_strrchr ();
-char *etags_getcwd ();
-char *relative_filename (), *absolute_filename (), *absolute_dirname ();
-void grow_linebuffer ();
-long *xmalloc (), *xrealloc ();
+typedef struct
+{
+ char *name;
+ Lang_function *function;
+ char **suffixes;
+ char **interpreters;
+} language;
+
+extern char *getenv ();
-typedef void Lang_function ();
/* Many compilers barf on this:
- Lang_function Asm_labels;
+ Lang_function Ada_funcs;
so let's write it this way */
+void Ada_funcs ();
void Asm_labels ();
void C_entries ();
void default_C_entries ();
void Perl_functions ();
void Postscript_functions ();
void Prolog_functions ();
+void Python_functions ();
void Scheme_functions ();
void TeX_functions ();
void just_read_file ();
-Lang_function *get_language_from_name ();
-Lang_function *get_language_from_interpreter ();
-Lang_function *get_language_from_suffix ();
+compressor *get_compressor_from_suffix ();
+language *get_language_from_name ();
+language *get_language_from_interpreter ();
+language *get_language_from_suffix ();
int total_size_of_entries ();
-long readline ();
-long readline_internal ();
+long readline (), readline_internal ();
+void get_tag ();
+
#ifdef ETAGS_REGEXPS
void analyse_regex ();
void add_regex ();
+void free_patterns ();
#endif /* ETAGS_REGEXPS */
-void add_node ();
void error ();
void suggest_asking_for_help ();
void fatal (), pfatal ();
-void find_entries ();
-void free_tree ();
-void getit ();
+void add_node ();
+
void init ();
void initbuffer ();
+void find_entries ();
+void free_tree ();
void pfnote (), new_pfnote ();
void process_file ();
void put_entries ();
void takeprec ();
+char *concat ();
+char *skip_spaces (), *skip_non_spaces ();
+char *savenstr (), *savestr ();
+char *etags_strchr (), *etags_strrchr ();
+char *etags_getcwd ();
+char *relative_filename (), *absolute_filename (), *absolute_dirname ();
+bool filename_is_absolute ();
+void canonicalize_filename ();
+void grow_linebuffer ();
+long *xmalloc (), *xrealloc ();
+
\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 */
+
+char *curfile; /* current input file name */
+language *curlang; /* current language */
+
+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 */
+
+typedef struct node_st
+{ /* sorting structure */
+ char *name; /* function or type name */
+ char *file; /* file name */
+ 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 node_st *left, *right; /* left and right sons */
+} node;
+
+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.
+ * 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.
*/
-struct linebuffer
+typedef struct
{
long size;
int len;
char *buffer;
-};
+} linebuffer;
-struct linebuffer lb; /* the current line */
-struct linebuffer token_name; /* used by C_entries as a temporary area */
+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) */
bool _wht[CHARS], _nin[CHARS], _itk[CHARS], _btk[CHARS], _etk[CHARS];
char
/* white chars */
- *white = " \f\t\n\013",
+ *white = " \f\t\n\r",
/* not in a name */
- *nonam =" \f\t\n\013(=,[;",
+ *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 */
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 typedefs */
+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. */
bool constantypedefs; /* -d: create tags for C #define, enum */
/* constants and variables. */
/* -D: opposite of -d. Default under ctags. */
-bool globals; /* create tags for C global variables */
+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 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' },
- { "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' },
-#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' },
- { 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;
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 */
NULL };
char *Postscript_suffixes [] =
- { "ps", NULL };
+ { "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", "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 [] =
{
+ { "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 },
{ "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 },
{ "none", just_read_file }, /* regexp matching only */
{ NULL, NULL } /* end of list */
};
-
\f
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 VERSION
-# define VERSION "19"
+# define VERSION "20"
#endif
void
print_version ()
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.");
+ 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 C #define constants and enum constants, too.");
if (CTAGS)
puts ("--globals\n\
- Create tag entries for global variables in C and derived languages.");
+ Create tag entries for global variables in some languages.");
else
puts ("--no-globals\n\
- Do not create tag entries for global variables in C and\n\
- derived languages. This makes the tags file smaller.");
+ 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/ or --regex=@regexfile\n\
- Make a tag for each line matching pattern REGEXP in the\n\
- following files. regexfile is a file containing one REGEXP\n\
- per line. 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\
+ 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.");
{
at_language,
at_regexp,
- at_filename
+ at_filename,
+ at_icregexp
};
/* This structure helps us allow mixing of --lang and file names. */
{
enum argument_type arg_type;
char *what;
- Lang_function *function;
+ language *lang; /* language of the regexp */
} argument;
#ifdef VMS /* VMS specific functions */
char *this_file;
argument *argbuffer;
int current_arg, file_count;
- struct linebuffer filename_lb;
+ linebuffer filename_lb;
#ifdef VMS
bool got_err;
#endif
#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, enum constants and
- * global variables.
+ * global variables.
*/
if (!CTAGS)
{
char *optstring;
#ifdef ETAGS_REGEXPS
- optstring = "-aCdDf:Il:o:r:RStTi:BuvxwVhH";
+ optstring = "-aCdDf:Il:o:r:c:RStTi:BuvxwVhH";
#else
optstring = "-aCdDf:Il:o:StTi:BuvxwVhH";
#endif /* ETAGS_REGEXPS */
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 ();
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:
- analyse_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:
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)
if (cxref_style)
{
put_entries (head);
+ free_tree (head);
+ head = NULL;
exit (GOOD);
}
if (tagf == NULL)
pfatal (tagfile);
put_entries (head);
+ free_tree (head);
+ head = NULL;
fclose (tagf);
if (update)
}
+
+/*
+ * 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>
+ */
+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;
+#ifndef MSDOS
+ break;
+#endif
+ 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 *
+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;
- }
-
- error ("language \"%s\" not recognized.", 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 *
+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;
+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.
*/
{
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))
- {
- error ("skipping %s: it is not a regular file.", file);
- return;
- }
+ canonicalize_filename (file);
if (streq (file, tagfile) && !streq (tagfile, "-"))
{
error ("skipping inclusion of %s in self.", file);
return;
}
- inf = fopen (file, "r");
+ if ((compr = get_compressor_from_suffix (file, &ext)) == NULL)
+ {
+ 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)
+ {
+#ifdef 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;
+#endif
+ 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);
+ }
+ 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 file name. Canonicalise it. */
- filename = absolute_filename (file, cwd);
+ filename = absolute_filename (uncompressed_name, cwd);
}
else
{
/* 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"
register int i;
for (i = 0; i < CHARS; i++)
- _wht[i] = _nin[i] = _etk[i] = _itk[i] = _btk[i] = FALSE;
- for (sp = white; *sp; sp++) _wht[*sp] = TRUE; _wht[0] = _wht['\n'];
- for (sp = nonam; *sp; sp++) _nin[*sp] = TRUE; _nin[0] = _nin['\n'];
- for (sp = endtk; *sp; sp++) _etk[*sp] = TRUE; _etk[0] = _etk['\n'];
- for (sp = midtk; *sp; sp++) _itk[*sp] = TRUE; _btk[0] = _btk['\n'];
- for (sp = begtk; *sp; sp++) _btk[*sp] = TRUE; _itk[0] = _itk['\n'];
+ 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;
+ for (sp = begtk; *sp != '\0'; sp++) begtoken (*sp) = TRUE;
+ for (sp = midtk; *sp != '\0'; sp++) intoken (*sp) = TRUE;
+ for (sp = endtk; *sp != '\0'; sp++) endtoken (*sp) = TRUE;
+ iswhite('\0') = iswhite('\n');
+ notinname('\0') = notinname('\n');
+ begtoken('\0') = begtoken('\n');
+ intoken('\0') = intoken('\n');
+ endtoken('\0') = endtoken('\n');
}
/*
* This routine opens the specified file and calls the function
* which finds the function and type definitions.
*/
+node *last_node = NULL;
+
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)
+ 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
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
- * From: Sam Kendall <kendall@cybercom.net>
+/* 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()";
+ * 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()";
+ * be one of the characters " \t(),;";
* 4. the character, if any, immediately after name in linestart must
- * also be one of the characters " \t()".
+ * 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
void
named = FALSE; /* use unnamed tag */
}
}
-
+
if (named)
name = savenstr (name, namelen);
else
* recurse on left children, iterate on right children.
*/
void
-free_tree (node)
- register NODE *node;
+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;
+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", (char *)NULL);
- last_node->right = node;
- last_node = node;
+ 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;
+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)
+ if (np->name != NULL)
fprintf (tagf, "%s\177%s\001%d,%ld\n",
- node->pat, node->name, node->lno, node->cno);
+ np->pat, np->name, np->lno, np->cno);
else
fprintf (tagf, "%s\177%d,%ld\n",
- node->pat, node->lno, node->cno);
+ np->pat, np->lno, np->cno);
}
else
{
- if (node->name == NULL)
+ 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. */
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;
}
* backward compatibility.
*/
int
-total_size_of_entries (node)
- register NODE *node;
+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;
st_C_gnumacro,
st_C_ignore,
st_C_javastruct,
- st_C_struct, st_C_enum, st_C_define, st_C_typedef, st_C_typespec
+ st_C_operator,
+ st_C_struct, st_C_extern, st_C_enum, st_C_define, st_C_typedef, st_C_typespec
};
/* Feed stuff between (but not including) %[ and %] lines to:
%[
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
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. */
/*%<*/
-/* starting time is 10:31:16 */
-/* 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 15
-#define MAX_HASH_VALUE 128
-/*
- 39 keywords
- 114 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[] =
{
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 39, 128, 128, 128, 54, 48,
- 46, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 28, 128, 128, 40, 32, 128, 128, 128, 128, 128,
- 128, 128, 128, 128, 128, 128, 128, 24, 30, 47,
- 62, 7, 60, 27, 128, 60, 128, 128, 59, 16,
- 31, 23, 45, 128, 4, 14, 2, 55, 5, 128,
- 128, 128, 128, 128, 128, 128, 128, 128,
- };
- return len + hash_table[str[2]] + hash_table[str[0]];
+ 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)
+ {
+ default:
+ case 3:
+ hval += asso_values[(unsigned char)str[2]];
+ case 2:
+ case 1:
+ hval += asso_values[(unsigned char)str[0]];
+ break;
+ }
+ return hval;
}
+#ifdef __GNUC__
+__inline
+#endif
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[] =
{
- {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",},
- {"",}, {"",}, {"",}, {"",}, {"",}, {"",},
- {"extern", 0, st_C_typespec},
- {"extends", C_JAVA, st_C_javastruct},
- {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",},
- {"struct", 0, st_C_struct},
- {"mutable", C_PLPL, st_C_typespec},
- {"",}, {"",}, {"",}, {"",},
- {"auto", 0, st_C_typespec},
- {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",}, {"",},
- {"",}, {"",},
- {"short", 0, st_C_typespec},
- {"",},
- {"static", 0, st_C_typespec},
- {"",}, {"",},
- {"signed", 0, st_C_typespec},
- {"",}, {"",}, {"",}, {"",},
- {"@protocol", 0, st_C_objprot},
- {"",},
- {"typedef", 0, st_C_typedef},
- {"typename", C_PLPL, st_C_typespec},
- {"namespace", C_PLPL, st_C_struct},
- {"bool", C_PLPL, st_C_typespec},
- {"",}, {"",},
- {"explicit", C_PLPL, st_C_typespec},
- {"",}, {"",}, {"",}, {"",},
- {"int", 0, st_C_typespec},
- {"enum", 0, st_C_enum},
- {"",}, {"",},
- {"void", 0, st_C_typespec},
- {"@implementation", 0, st_C_objimpl},
- {"",},
- {"volatile", 0, st_C_typespec},
- {"",},
- {"@end", 0, st_C_objend},
- {"char", 0, st_C_typespec},
- {"class", C_PLPL, st_C_struct},
- {"unsigned", 0, st_C_typespec},
- {"",}, {"",},
- {"@interface", 0, st_C_objprot},
- {"",},
- {"PSEUDO", 0, st_C_gnumacro},
- {"const", 0, st_C_typespec},
- {"domain", C_STAR, st_C_struct},
- {"ENTRY", 0, st_C_gnumacro},
- {"",},
- {"SYSCALL", 0, st_C_gnumacro},
- {"float", 0, st_C_typespec},
- {"",}, {"",}, {"",}, {"",}, {"",},
- {"long", 0, st_C_typespec},
- {"",}, {"",}, {"",}, {"",},
- {"package", C_JAVA, st_C_ignore},
- {"",}, {"",}, {"",}, {"",}, {"",},
- {"DEFUN", 0, st_C_gnumacro},
- {"",}, {"",}, {"",}, {"",}, {"",},
- {"import", C_JAVA, st_C_ignore},
- {"",}, {"",}, {"",},
- {"implements", C_JAVA, st_C_javastruct},
- {"",}, {"",}, {"",}, {"",},
- {"union", 0, st_C_struct},
- {"",}, {"",},
- {"double", 0, st_C_typespec},
- {"",}, {"",},
- {"friend", C_PLPL, st_C_ignore},
- {"",},
- {"define", 0, st_C_define},
+ {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
+ {""}, {""}, {""}, {""},
+ {"@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];
}
}
return 0;
}
-/* ending time is 10:31:16 */
/*%>*/
enum sym_type
enum
{
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 */
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 */
int lineno;
long linepos;
char *buffer;
-} TOKEN;
-TOKEN tok; /* latest token read */
+} token;
+token tok; /* latest token read */
/*
* Set this to TRUE, and the next token considered is called a function.
* *IS_FUNC gets TRUE iff the token is a function or #define macro
* with args. C_EXT is which language we are looking at.
*
- * 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'.
- *
* Globals
* fvdef IN OUT
* structdef IN OUT
if (toktype == st_C_typedef)
{
if (typedefs)
- typdef = ttypedseen;
+ 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. */
if (structdef == stagseen)
structdef = scolonseen;
return FALSE;
- break;
case st_C_struct:
case st_C_enum:
- if (typdef == ttypedseen
+ if (typdef == tkeyseen
|| (typedefs_and_cplusplus && cblev == 0 && structdef == snone))
{
structdef = skeyseen;
return TRUE;
}
- /* Avoid entering fvdef stuff if typdef is going on. */
if (typdef != tnone)
- {
- definedef = dnone;
- return FALSE;
- }
+ definedef = dnone;
/* Detect GNU macros.
- DEFUN note for writers of emacs C code:
+ 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
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, so writers of emacs code are recommended to put the
- first two args of a DEFUN on the same line. */
+ implemented. */
if (definedef == dnone && toktype == st_C_gnumacro)
{
next_token_is_func = TRUE;
/* A function, variable or enum constant? */
switch (toktype)
{
+ case st_C_extern:
+ fvextern = TRUE;
+ /* FALLTHRU */
case st_C_typespec:
- if (fvdef != finlist && fvdef != fignore && fvdef != vignore)
- fvdef = fvnone; /* should be useless */
+ if (fvdef != finlist && fvdef != fignore && fvdef != vignore)
+ fvdef = fvnone; /* should be useless */
return FALSE;
case st_C_ignore:
+ fvextern = FALSE;
fvdef = vignore;
return FALSE;
+ case st_C_operator:
+ fvdef = foperator;
+ *is_func_or_var = TRUE;
+ return TRUE;
case st_none:
+ if ((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)
*is_func_or_var = TRUE;
return TRUE;
}
+ break;
}
return FALSE;
* C_entries ()
* This routine finds functions, variables, typedefs,
* #define's, enum constants and struct/union/enum definitions in
- * #C syntax and adds them to the list.
+ * C syntax and adds them to the list.
*/
#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; \
int cblev; /* current curly brace level */
int parlev; /* current parenthesis level */
bool incomm, inquote, inchar, quotednl, midtoken;
- bool cplpl, cjava;
- TOKEN savetok; /* token saved during preprocessor handling */
+ 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;
- fvdef = fvnone; 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;
+ 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)
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 (fvdef != finlist && fvdef != fignore && fvdef !=vignore)
- fvdef = fvnone;
+ {
+ fvextern = FALSE;
+ fvdef = fvnone;
+ }
continue;
case '\'':
inchar = TRUE;
if (fvdef != finlist && fvdef != fignore && fvdef !=vignore)
- fvdef = fvnone;
+ {
+ fvextern = FALSE;
+ fvdef = fvnone;
+ }
continue;
case '/':
if (*lp == '*')
{
/* entering or exiting rules section in yacc file */
lp++;
- definedef = dnone; fvdef = fvnone;
+ definedef = dnone; fvdef = fvnone; fvextern = FALSE;
typdef = tnone; structdef = snone;
next_token_is_func = FALSE;
midtoken = inquote = inchar = incomm = quotednl = FALSE;
if ((definedef != dnone
|| (cblev == 0 && structdef != scolonseen)
|| (cblev == 1 && cplpl && structdef == sinbody)
- || (structdef == sinbody && structtype == st_C_enum))
+ || (structdef == sinbody && purec))
&& typdef != tignore
&& definedef != dignorerest
&& fvdef != finlist)
{
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 intoken;
}
else
{
- bool funorvar = FALSE;
-
if (yacc_rules
|| consider_token (newlb.buffer + tokoff, toklen, c,
c_ext, cblev, parlev, &funorvar))
{
+ if (fvdef == foperator)
+ {
+ char *oldlp = lp;
+ lp = skip_spaces (lp-1);
+ if (*lp != '\0')
+ lp += 1;
+ while (*lp != '\0'
+ && !isspace (*lp) && *lp != '(')
+ lp += 1;
+ c = *lp++;
+ toklen += lp - oldlp;
+ }
tok.named = FALSE;
- if (structdef == sinbody
+ if (!purec
+ && funorvar
&& definedef == dnone
- && funorvar)
+ && structdef == sinbody)
/* function or var defined in C++ class body */
{
int len = strlen (structtag) + qlen + toklen;
newlb.buffer + tokoff, toklen);
token_name.buffer[toklen] = '\0';
token_name.len = toklen;
- /* Name macros. */
+ /* Name macros and members. */
tok.named = (structdef == stagseen
+ || typdef == ttypeseen
|| typdef == tend
|| (funorvar
- && definedef == dignorerest));
+ && definedef == dignorerest)
+ || (funorvar
+ && definedef == dnone
+ && structdef == sinbody));
}
tok.lineno = lineno;
tok.linelen = tokoff + toklen + 1;
if (definedef == dnone
&& (fvdef == fvnameseen
+ || fvdef == foperator
|| structdef == stagseen
|| typdef == tend
|| objdef != onone))
}
} /* if (endtoken (c)) */
else if (intoken (c))
+ intoken:
{
toklen++;
continue;
}
break;
case fstartlist:
+ fvextern = FALSE;
fvdef = fvnone;
break;
}
case fignore:
break;
case fvnameseen:
- if ((globals && cblev == 0) || (members && cblev == 1))
+ 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
}
switch (fvdef)
{
+ case foperator:
case finlist:
case fignore:
case vignore:
break;
case fvnameseen:
- if ((globals && cblev == 0) || (members && cblev == 1))
+ if ((members && cblev == 1)
+ || (globals && cblev == 0 && (!fvextern || declarations)))
make_C_tag (FALSE); /* a variable */
break;
default:
}
switch (fvdef)
{
+ case foperator:
case finlist:
case fignore:
case vignore:
break;
case fvnameseen:
- if ((globals && cblev == 0) || (members && cblev == 1))
+ if ((members && cblev == 1)
+ || (globals && cblev == 0 && (!fvextern || declarations)))
make_C_tag (FALSE); /* a variable */
/* FALLTHRU */
default:
objdef = oparenseen;
switch (fvdef)
{
- case fvnone:
- switch (typdef)
- {
- case ttypedseen:
- case tend:
- if (tok.valid && *lp != '*')
- {
- /* This handles constructs like:
- typedef void OperatorFun (int fun); */
- make_C_tag (FALSE);
- typdef = tignore;
- }
- break;
- } /* switch (typdef) */
- break;
case fvnameseen:
- fvdef = fstartlist;
+ if (typdef == ttypeseen
+ && tok.valid
+ && *lp != '*'
+ && structdef != sinbody)
+ {
+ /* This handles constructs like:
+ typedef void OperatorFun (int fun); */
+ make_C_tag (FALSE);
+ typdef = tignore;
+ }
+ /* FALLTHRU */
+ case foperator:
+ fvdef = fstartlist;
break;
case flistseen:
fvdef = finlist;
fvdef = flistseen;
break;
}
- if (cblev == 0 && typdef == tend)
+ if (cblev == 0 && (typdef == tend))
{
typdef = tignore;
make_C_tag (FALSE); /* a typedef */
case '{':
if (definedef != dnone)
break;
- if (typdef == ttypedseen)
+ if (typdef == ttypeseen)
typdef = tinbody;
switch (structdef)
{
break;
switch (fvdef)
{
+ case foperator:
case finlist:
case fignore:
case vignore:
break;
case fvnameseen:
- if ((globals && cblev == 0) || (members && cblev == 1))
+ if ((members && cblev == 1)
+ || (globals && cblev == 0 && (!fvextern || declarations)))
make_C_tag (FALSE); /* a variable */
/* FALLTHRU */
default:
case '^': case '!': case '<': case '>': case '.': case '?': case ']':
if (definedef != dnone)
break;
- /* These surely cannot follow a function tag. */
- if (fvdef != finlist && fvdef != fignore && fvdef != vignore)
- fvdef = fvnone;
+ /* 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)
}
/* 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) */
C_entries (YACC, inf);
}
\f
-/* Fortran parsing */
+/* 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); \
+ )
-char *dbp;
+
+/*
+ * 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;
+{
+ register char *dummy;
+
+ LOOP_ON_INPUT_LINES (inf, lb, dummy)
+ continue;
+}
+\f
+/* Fortran parsing */
bool
tail (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;
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;
{
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 (savenstr (dbp, cp-dbp), TRUE,
lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
}
+
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"))
- {
- getit (inf);
- continue;
- }
- if (tail ("procedure"))
- getit (inf);
- continue;
case 'b':
if (tail ("blockdata") || tail ("block data"))
{
- while (isspace (*dbp))
- dbp++;
+ dbp = skip_spaces (dbp);
if (*dbp == '\0') /* assume un-named */
- pfnote (savestr ("blockdata"), TRUE, lb.buffer,
- dbp - lb.buffer, lineno, linecharno);
+ pfnote (savestr ("blockdata"), TRUE,
+ lb.buffer, dbp - lb.buffer, lineno, linecharno);
else
getit (inf); /* look for name */
}
}
}
\f
+/*
+ * Philippe Waroquiers <philippe.waroquiers@eurocontrol.be>, 1998-04-24
+ * Ada parsing
+ */
+/* Once we are positioned after an "interesting" keyword, let's get
+ the real tag value necessary. */
+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;
+ }
+}
+
+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
{
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 [_.$], test for colon
following identifier. */
if (isalpha (*cp) || *cp == '_' || *cp == '.' || *cp == '$')
\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
Perl_functions (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' && isspace (*cp++))
+ {
+ cp = skip_spaces (cp);
+ if (*cp != '\0')
+ {
+ char *sp = cp;
+ while (*cp != '\0'
+ && !isspace (*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 == '(' || isspace (*cp)))
+ {
+ /* After "my" or "local", but before any following paren or space. */
+ char *varname = NULL;
- if (*cp++ == 's' && *cp++ == 'u' && *cp++ == 'b' && isspace (*cp++))
+ 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(:]+/
+ */
+void
+Python_functions (inf)
+ FILE *inf;
+{
+ register char *cp;
+
+ LOOP_ON_INPUT_LINES (inf, lb, cp)
+ {
+ if (*cp++ == 'd'
+ && *cp++ == 'e'
+ && *cp++ == 'f' && isspace (*cp++))
{
- while (*cp && isspace (*cp))
+ cp = skip_spaces (cp);
+ while (*cp != '\0' && !isspace (*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' && isspace (*cp++))
+ {
+ cp = skip_spaces (cp);
+ while (*cp != '\0' && !isspace (*cp) && *cp != '(' && *cp != ':')
cp++;
- pfnote (savenstr (lb.buffer, cp-lb.buffer), TRUE,
+ pfnote (NULL, TRUE,
lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
}
}
Cobol_paragraphs (inf)
FILE *inf;
{
- register char *cp;
-
- lineno = 0;
- charno = 0;
+ register char *bp, *ep;
- while (!feof (inf))
+ LOOP_ON_INPUT_LINES (inf, lb, bp)
{
- lineno++;
- linecharno = charno;
- charno += readline (&lb, inf);
-
if (lb.len < 9)
continue;
- dbp = lb.buffer + 8;
+ bp += 8;
/* If eoln, compiler option or comment ignore whole line. */
- if (dbp[-1] != ' ' || !isalnum (dbp[0]))
+ if (bp[-1] != ' ' || !isalnum (bp[0]))
continue;
- for (cp = dbp; isalnum (*cp) || *cp == '-'; cp++)
+ for (ep = bp; isalnum (*ep) || *ep == '-'; ep++)
continue;
- if (*cp++ == '.')
- pfnote (savenstr (dbp, cp-dbp), TRUE,
- lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ if (*ep++ == '.')
+ pfnote (savenstr (bp, ep-bp), TRUE,
+ lb.buffer, ep - lb.buffer + 1, lineno, linecharno);
}
}
\f
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;
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 */
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')
+ && isspace (*++strp));
}
void
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 != '\0' && *cp != '(' && *cp != ' ' && *cp != ')';
+ *cp != '\0' && *cp != '(' && !isspace(*cp) && *cp != ')';
cp++)
continue;
if (cp == dbp)
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' && !isspace (*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 ();
}
}
* 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>
*/
-void
+void
Postscript_functions (inf)
FILE *inf;
{
- lineno = 0;
- charno = 0;
+ register char *bp, *ep;
- while (!feof (inf))
+ LOOP_ON_INPUT_LINES (inf, lb, bp)
{
- lineno++;
- linecharno = charno;
- charno += readline (&lb, inf);
- dbp = lb.buffer;
- if (dbp[0] == '/')
+ if (bp[0] == '/')
{
- register char *cp;
- for (cp = dbp+1;
- *cp != '\0' && *cp != ' ' && *cp != '{';
- cp++)
+ for (ep = bp+1;
+ *ep != '\0' && *ep != ' ' && *ep != '{';
+ ep++)
continue;
- pfnote (savenstr (dbp, cp-dbp), TRUE,
- lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
+ 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);
}
}
}
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 (isspace (*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] == '!')
+ && (isspace (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 (savenstr (dbp, cp-dbp), TRUE,
- lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
-}
\f
/* Find tags in TeX and LaTeX input files. */
TeX_functions (inf)
FILE *inf;
{
- char *lasthit;
+ char *cp, *lasthit;
register int i;
- lineno = 0;
- charno = 0;
-
/* 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)
{
- if (!*(++dbp))
+ if (*++cp == '\0')
break;
- linecharno += dbp - lasthit;
- lasthit = dbp;
+ linecharno += cp - lasthit;
+ lasthit = cp;
i = TEX_Token (lasthit);
if (i >= 0)
{
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);
}
/* 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);
/* 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
TEX_Token (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.
*/
int prolog_pred ();
void prolog_skip_comment ();
int prolog_atom ();
-int eat_white ();
void
Prolog_functions (inf)
FILE *inf;
{
- 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 (isspace (cp[0])) /* Not a predicate */
continue;
- else if (dbp[0] == '/' && dbp[1] == '*') /* comment. */
+ else if (cp[0] == '/' && cp[1] == '*') /* comment. */
prolog_skip_comment (&lb, inf);
- else if (len = prolog_pred (dbp, last))
+ else if ((len = prolog_pred (cp, last)) > 0)
{
/* Predicate. Store the function name so that we only
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
prolog_skip_comment (plb, inf)
- struct linebuffer *plb;
+ linebuffer *plb;
FILE *inf;
{
char *cp;
return 0;
len = pos;
- pos += eat_white (s, pos);
+ pos = skip_spaces (s + pos) - s;
if ((s[pos] == '(') || (s[pos] == '.'))
{
/* Save only the first clause. */
if (last == NULL
- || len != strlen (last)
+ || len != (int)strlen (last)
|| !strneq (s, last, len))
{
- pfnote (savenstr (s, len), TRUE,
- s, pos, lineno, linecharno);
+ pfnote (savenstr (s, len), TRUE, s, pos, lineno, linecharno);
return len;
}
}
{
pos++;
- while (1)
+ while (1)
{
if (s[pos] == '\'')
{
else
return -1;
}
-
-/* Consume whitespace. Return the number of bytes eaten. */
-int
-eat_white (s, pos)
- char *s;
- int pos;
-{
- int origpos = pos;
-
- 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.
Erlang_functions (inf)
FILE *inf;
{
- 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 (isspace (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);
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 0;
len = pos;
- pos += eat_white (s, pos);
+ pos = skip_spaces (s + pos) - s;
/* Save only the first clause. */
if (s[pos++] == '('
&& (last == NULL
- || len != strlen (last)
+ || len != (int)strlen (last)
|| !strneq (s, last, len)))
{
- pfnote (savenstr (s, len), TRUE,
- s, pos, lineno, linecharno);
+ pfnote (savenstr (s, len), TRUE, s, pos, lineno, linecharno);
return len;
}
/*
- * Handle attributes. Currently, tags are generated for defines
+ * Handle attributes. Currently, tags are generated for defines
* and records.
*
* They are on the form:
if (strneq (s, "-define", 7) || strneq (s, "-record", 7))
{
- pos = 7 + eat_white (s, 7);
- if (s[pos++] == '(')
+ pos = skip_spaces (s + 7) - s;
+ if (s[pos++] == '(')
{
- pos += eat_white (s, pos);
- if (len = erlang_atom (s, pos))
- pfnote (savenstr (& s[pos], len), 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;
{
pos++;
- while (1)
+ while (1)
{
if (s[pos] == '\'')
{
}
\f
#ifdef ETAGS_REGEXPS
+
/* 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
}
/* Look at the argument of --regex or --no-regex and do the right
- thing. */
+ thing. Same for each line of a regexp file. */
void
-analyse_regex (regex_arg)
+analyse_regex (regex_arg, ignore_case)
char *regex_arg;
+ bool ignore_case;
{
- struct stat stat_buf;
-
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])
{
- /* Remove existing regexps. */
- num_patterns = 0;
- patterns = NULL;
- return;
- }
- if (regex_arg[0] == '\0')
- {
- error ("missing regexp", (char *)NULL);
- return;
- }
- if (regex_arg[0] == '@'
- && stat (regex_arg + 1, &stat_buf) == 0)
- {
- FILE *regexfp;
- struct linebuffer regexbuf;
- char *regexfile = regex_arg + 1;
+ /* Comments in regexp file or null arg to --regex. */
+ case '\0':
+ case ' ':
+ case '\t':
+ break;
- /* regexfile is a file containing regexps, one per line. */
- regexfp = fopen (regexfile, "r");
- if (regexfp == NULL)
- {
- perror (regexfile);
+ /* 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;
- }
- initbuffer (®exbuf);
- while (readline_internal (®exbuf, regexfp))
- add_regex (regexbuf.buffer);
- free (regexbuf.buffer);
- fclose (regexfp);
- }
- else
- {
- add_regex (regex_arg);
+ 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)
+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[strlen(regexp_pattern)-1] != regexp_pattern[0])
(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;
- re_syntax_options = RE_INTERVALS;
err = re_compile_pattern (regexp_pattern, strlen (regexp_pattern), patbuf);
if (err != NULL)
{
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;
}
/*
*t++ = *out;
*t = '\0';
- if (DEBUG && (t > result + size || t - result != strlen (result)))
+ if (DEBUG && (t > result + size || t - result != (int)strlen (result)))
abort ();
return result;
}
+
+/* Deallocate all patterns. */
+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
+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 != ')' && !isspace (*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;
+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;
+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)
{
}
*p++ = c;
}
- linebuffer->len = p - buffer;
+ lbp->len = p - buffer;
- return linebuffer->len + chars_deleted;
+ return lbp->len + chars_deleted;
}
/*
* Like readline_internal, above, but in addition try to match the
- * input line against any existing regular expressions.
+ * input line against relevant regular expressions.
*/
long
-readline (linebuffer, stream)
- struct linebuffer *linebuffer;
+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. */
- if (linebuffer->len > 0)
- for (i = 0; i < num_patterns; ++i)
+ /* Match against relevant patterns. */
+ if (lbp->len > 0)
+ for (pp = p_head; pp != NULL; pp = pp->p_next)
{
- int match = re_match (patterns[i].pattern, linebuffer->buffer,
- linebuffer->len, 0, &patterns[i].regs);
+ /* 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 (!patterns[i].error_signaled)
+ if (!pp->error_signaled)
{
- error ("error while matching pattern %d", i);
- patterns[i].error_signaled = TRUE;
+ error ("error while matching \"%s\"", pp->regex);
+ pp->error_signaled = TRUE;
}
break;
case -1:
break;
default:
/* Match occurred. Construct a tag. */
- if (patterns[i].name_pattern[0] != '\0')
+ if (pp->name_pattern[0] != '\0')
{
/* Make a named tag. */
- char *name = substitute (linebuffer->buffer,
- patterns[i].name_pattern,
- &patterns[i].regs);
+ char *name = substitute (lbp->buffer,
+ pp->name_pattern, &pp->regs);
if (name != NULL)
- pfnote (name, TRUE,
- linebuffer->buffer, match, lineno, linecharno);
+ pfnote (name, TRUE, lbp->buffer, match, lineno, linecharno);
}
else
{
/* Make an unnamed tag. */
pfnote ((char *)NULL, TRUE,
- linebuffer->buffer, match, lineno, linecharno);
+ 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);
- }
+ return result;
}
-
\f
/*
* Return a pointer to a space of size strlen(cp)+1 allocated
return NULL;
}
+/* Skip spaces, return new pointer. */
+char *
+skip_spaces (cp)
+ char *cp;
+{
+ while (isspace (*cp)) /* isspace('\0')==FALSE */
+ cp++;
+ return cp;
+}
+
+/* Skip non spaces, return new pointer. */
+char *
+skip_non_spaces (cp)
+ char *cp;
+{
+ while (!iswhite (*cp)) /* iswhite('\0')==TRUE */
+ cp++;
+ return cp;
+}
+
/* Print error message and exit. */
void
fatal (s1, s2)
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);
}
char *
etags_getcwd ()
{
-#if defined (HAVE_GETCWD) || defined (WINDOWSNT)
+#ifdef HAVE_GETCWD
int bufsize = 200;
char *path = xnew (bufsize, char);
path = xnew (bufsize, char);
}
-#if WINDOWSNT
- {
- /* Convert backslashes to slashes. */
- char *p;
- for (p = path; *p != '\0'; p++)
- if (*p == '\\')
- *p = '/';
- /* Canonicalize drive letter case. */
- if (islower (path[0]))
- path[0] = toupper (path[0]);
- }
-#endif
-
+ canonicalize_filename (path);
return path;
#else /* not HAVE_GETCWD */
return strdup (path);
#else /* not MSDOS */
- struct linebuffer path;
+ linebuffer path;
FILE *pipe;
initbuffer (&path);
#endif /* not HAVE_GETCWD */
}
-/* Return a newly allocated string containing the file name
- of FILE relative to the absolute directory DIR (which
- should end with a slash). */
+/* Return a newly allocated string containing the file name of FILE
+ relative to the absolute directory DIR (which should end with a slash). */
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 (with a trailing slash). */
- abs = absolute_filename (file, cwd);
- fp = abs;
+ afn = absolute_filename (file, cwd);
+ fp = afn;
dp = dir;
while (*fp++ == *dp++)
continue;
fp--, dp--; /* back to the first differing char */
- do { /* look at the equal chars until '/' */
- if (fp == abs) return abs; /* first char differs, give up */
+#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 != '/');
+ while (*fp != '/');
/* Build a sequence of "../" strings for the resulting relative file name. */
i = 0;
/* Add the file name relative to the common root of file and dir. */
strcat (res, fp + 1);
- free (abs);
+ free (afn);
return res;
}
-/* Return a newly allocated string containing the
- absolute file name of FILE given CWD (which should
- end with a slash). */
+/* Return a newly allocated string containing the absolute file name
+ of FILE given DIR (which should end with a slash). */
char *
-absolute_filename (file, cwd)
- char *file, *cwd;
+absolute_filename (file, dir)
+ char *file, *dir;
{
char *slashp, *cp, *res;
- if (absolutefn (file))
+ if (filename_is_absolute (file))
res = savestr (file);
#ifdef DOS_NT
/* We don't support non-absolute file names with a drive
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));
+ while (cp >= res && !filename_is_absolute (cp));
if (cp < res)
cp = slashp; /* the absolute name begins with "/.." */
#ifdef DOS_NT
slashp = etags_strchr (slashp + 1, '/');
}
-#ifdef DOS_NT
- /* Canonicalize drive letter case. */
- if (res[0] && islower (res[0]))
- res[0] = toupper (res[0]);
-#endif
-
if (res[0] == '\0')
return savestr ("/");
else
}
/* Return a newly allocated string containing the absolute
- file name 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;
+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 savestr (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. */
+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. */
+void
+canonicalize_filename (fn)
+ register char *fn;
+{
+#ifdef DOS_NT
+ /* Convert backslashes to slashes. */
+ for (; *fn != '\0'; fn++)
+ if (*fn == '\\')
+ *fn = '/';
+ /* Canonicalize drive letter case. */
+ if (islower (path[0]))
+ path[0] = toupper (path[0]);
+#else
+ /* No action. */
+ fn = NULL; /* shut up the compiler */
+#endif
+}
+
/* Increase the size of a linebuffer. */
void
-grow_linebuffer (bufp, toksize)
- struct linebuffer *bufp;
+grow_linebuffer (lbp, toksize)
+ linebuffer *lbp;
int toksize;
{
- while (bufp->size < toksize)
- bufp->size *= 2;
- bufp->buffer = (char *) xrealloc (bufp->buffer, bufp->size);
+ 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. */
HCoop / bpt / emacs.git / commitdiff