view etc/etags.1 @ 814:a634e3b7acc8

[xemacs-hg @ 2002-04-14 12:41:59 by ben] latest changes TODO.ben-mule-21-5: Update. make-docfile.c: Add basic support for handling ISO 2022 doc strings -- we parse the basic charset designation sequences so we know whether we're in ASCII and have to pay attention to end quotes and such. Reformat code according to coding standards. abbrev.el: Add `global-abbrev-mode', which turns on or off abbrev-mode in all buffers. Added `defining-abbrev-turns-on-abbrev-mode' -- if non-nil, defining an abbrev through an interactive function will automatically turn on abbrev-mode, either globally or locally depending on the command. This is the "what you'd expect" behavior. indent.el: general function for indenting a balanced expression in a mode-correct way. Works similar to indent-region in that a mode can specify a specific command to do the whole operation; if not, figure out the region using forward-sexp and indent each line using indent-according-to-mode. keydefs.el: Removed. Modify M-C-backslash to do indent-region-or-balanced-expression. Make S-Tab just insert a TAB char, like it's meant to do. make-docfile.el: Now that we're using the call-process-in-lisp, we need to load an extra file win32-native.el because we're running a bare temacs. menubar-items.el: Totally redo the Cmds menu so that most used commands appear directly on the menu and less used commands appear in submenus. The old way may have been very pretty, but rather impractical. process.el: Under Windows, don't ever use old-call-process-internal, even in batch mode. We can do processes in batch mode. subr.el: Someone recoded truncate-string-to-width, saying "the FSF version is too complicated and does lots of hard-to-understand stuff" but the resulting recoded version was *totally* wrong! it misunderstood the basic point of this function, which is work in *columns* not chars. i dumped ours and copied the version from FSF 21.1. Also added truncate-string-with-continuation-dots, since this idiom is used often. config.inc.samp, xemacs.mak: Separate out debug and optimize flags. Remove all vestiges of USE_MINIMAL_TAGBITS, USE_INDEXED_LRECORD_IMPLEMENTATION, and GUNG_HO, since those ifdefs have long been removed. Make error-checking support actually work. Some rearrangement of config.inc.samp to make it more logical. Remove callproc.c and ntproc.c from xemacs.mak, no longer used. Make pdump the default. lisp.h: Add support for strong type-checking of Bytecount, Bytebpos, Charcount, Charbpos, and others, by making them classes, overloading the operators to provide integer-like operation and carefully controlling what operations are allowed. Not currently enabled in C++ builds because there are still a number of compile errors, and it won't really work till we merge in my "8-bit-Mule" workspace, in which I make use of the new types Charxpos, Bytexpos, Memxpos, representing a "position" either in a buffer or a string. (This is especially important in the extent code.) abbrev.c, alloc.c, eval.c, buffer.c, buffer.h, editfns.c, fns.c, text.h: Warning fixes, some of them related to new C++ strict type checking of Bytecount, Charbpos, etc. dired.c: Caught an actual error due to strong type checking -- char len being passed when should be byte len. alloc.c, backtrace.h, bytecode.c, bytecode.h, eval.c, sysdep.c: Further optimize Ffuncall: -- process arg list at compiled-function creation time, converting into an array for extra-quick access at funcall time. -- rewrite funcall_compiled_function to use it, and inline this function. -- change the order of check for magic stuff in SPECBIND_FAST_UNSAFE to be faster. -- move the check for need to garbage collect into the allocation code, so only a single flag needs to be checked in funcall. buffer.c, symbols.c: add debug funs to check on mule optimization info in buffers and strings. eval.c, emacs.c, text.c, regex.c, scrollbar-msw.c, search.c: Fix evil crashes due to eistrings not properly reinitialized under pdump. Redo a bit some of the init routines; convert some complex_vars_of() into simple vars_of(), because they didn't need complex processing. callproc.c, emacs.c, event-stream.c, nt.c, process.c, process.h, sysdep.c, sysdep.h, syssignal.h, syswindows.h, ntproc.c: Delete. Hallelujah, praise the Lord, there is no god but Allah!!! fix so that processes can be invoked in bare temacs -- thereby eliminating any need for callproc.c. (currently only eliminated under NT.) remove all crufty and unnecessary old process code in ntproc.c and elsewhere. move non-callproc-specific stuff (mostly environment) into process.c, so callproc.c can be left out under NT. console-tty.c, doc.c, file-coding.c, file-coding.h, lstream.c, lstream.h: fix doc string handling so it works with Japanese, etc docs. change handling of "character mode" so callers don't have to manually set it (quite error-prone). event-msw.c: spacing fixes. lread.c: eliminate unused crufty vintage-19 "FSF defun hack" code. lrecord.h: improve pdump description docs. buffer.c, ntheap.c, unexnt.c, win32.c, emacs.c: Mule-ize some unexec and startup code. It was pseudo-Mule-ized before by simply always calling the ...A versions of functions, but that won't cut it -- eventually we want to be able to run properly even if XEmacs has been installed in a Japanese directory. (The current problem is the timing of the loading of the Unicode tables; this will eventually be fixed.) Go through and fix various other places where the code was not Mule-clean. Provide a function mswindows_get_module_file_name() to get our own name without resort to PATH_MAX and such. Add a big comment in main() about the problem with Unicode table load timing that I just alluded to. emacs.c: When error-checking is enabled (interpreted as "user is developing XEmacs"), don't ask user to "pause to read messages" when a fatal error has occurred, because it will wedge if we are in an inner modal loop (typically when a menu is popped up) and make us unable to get a useful stack trace in the debugger. text.c: Correct update_entirely_ascii_p_flag to actually work. lisp.h, symsinit.h: declarations for above changes.
author ben
date Sun, 14 Apr 2002 12:43:31 +0000
parents c33ae14dd6d0
children 9d8bfee6e672
line wrap: on
line source

.\" Copyright (c) 1992 Free Software Foundation
.\" See section COPYING for conditions for redistribution
.TH etags 1 "14gen2001" "GNU Tools" "GNU Tools"
.de BP
.sp
.ti -.2i
\(**
..

.SH NAME
etags, ctags \- generate tag file for Emacs, vi
.SH SYNOPSIS
.hy 0
.na
.B etags [\|\-aCDGImRVh\|] [\|\-i \fIfile\fP\|] [\|\-l \fIlanguage\fP\|]
.if n .br
.B [\|\-o \fItagfile\fP\|] [\|\-r \fIregexp\fP\|]
.br
.B [\|\-\-append\|] [\|\-\-no\-defines\|]
.B [\|\-\-no\-globals\|] [\|\-\-include=\fIfile\fP\|]
.B [\|\-\-ignore\-indentation\|] [\|\-\-language=\fIlanguage\fP\|]
.B [\|\-\-members\|] [\|\-\-output=\fItagfile\fP\|]
.B [\|\-\-regex=\fIregexp\fP\|] [\|\-\-no\-regex\|]
.B [\|\-\-ignore\-case\-regex=\fIregexp\fP\|]
.B [\|\-\-help\|] [\|\-\-version\|]
\fIfile\fP .\|.\|.

.B ctags [\|\-aCdgImRVh\|] [\|\-BtTuvwx\|] [\|\-l \fIlanguage\fP\|]
.if n .br
.B [\|\-o \fItagfile\fP\|] [\|\-r \fIregexp\fP\|]
.br
.B [\|\-\-append\|] [\|\-\-backward\-search\|]
.B [\|\-\-cxref\|] [\|\-\-defines\|] [\|\-\-forward\-search\|]
.B [\|\-\-globals\|] [\|\-\-ignore\-indentation\|]
.B [\|\-\-language=\fIlanguage\fP\|] [\|\-\-members\|]
.B [\|\-\-output=\fItagfile\fP\|] [\|\-\-regex=\fIregexp\fP\|]
.B [\|\-\-ignore\-case\-regex=\fIregexp\fP\|]
.B [\|\-\-typedefs\|] [\|\-\-typedefs\-and\-c++\|]
.B [\|\-\-update\|] [\|\-\-no\-warn\|]
.B [\|\-\-help\|] [\|\-\-version\|]
\fIfile\fP .\|.\|.
.ad b
.hy 1
.SH DESCRIPTION
The `\|\fBetags\fP\|' program is used to create a tag table file, in a format
understood by
.BR emacs ( 1 )\c
\&; the `\|\fBctags\fP\|' program is used to create a similar table in a
format understood by
.BR vi ( 1 )\c
\&.  Both forms of the program understand the syntax of C, Objective C,
C++, Java, Fortran, Ada, Cobol, Erlang, LaTeX, Emacs Lisp/Common Lisp,
makefiles, Pascal, Perl, Postscript, Python, Prolog, Scheme and most
assembler\-like syntaxes.
Both forms read the files specified on the command line, and write a tag
table (defaults: `\|TAGS\|' for \fBetags\fP, `\|tags\|' for
\fBctags\fP) in the current working directory.
Files specified with relative file names will be recorded in the tag
table with file names relative to the directory where the tag table
resides.  Files specified with absolute file names will be recorded
with absolute file names.
The programs recognize the language used in an input file based on its
file name and contents.  The --language switch can be used to force
parsing of the file names following the switch according to the given
language, overriding guesses based on filename extensions.
.SH OPTIONS
Some options make sense only for the \fBvi\fP style tag files produced
by ctags;
\fBetags\fP does not recognize them.
The programs accept unambiguous abbreviations for long option names.
.TP
.B \-a, \-\-append
Append to existing tag file.  (For vi-format tag files, see also
\fB\-\-update\fP.)
.TP
.B \-B, \-\-backward\-search
Tag files written in the format expected by \fBvi\fP contain regular
expression search instructions; the \fB\-B\fP option writes them using
the delimiter `\|\fB?\fP\|', to search \fIbackwards\fP through files.
The default is to use the delimiter `\|\fB/\fP\|', to search \fIforwards\fP
through files.
Only \fBctags\fP accepts this option.
.TP
.B \-\-declarations
In C and derived languages, create tags for function declarations,
and create tags for extern variables unless \-\-no\-globals is used.
.TP
.B \-d, \-\-defines
Create tag entries for C preprocessor constant definitions
and enum constants, too.  This is the
default behavior for \fBetags\fP.
.TP
.B \-D, \-\-no\-defines
Do not create tag entries for C preprocessor constant definitions
and enum constants.
This may make the tags file much smaller if many header files are tagged.
This is the default behavior for \fBctags\fP.
.TP
.B \-g, \-\-globals
Create tag entries for global variables in C, C++, Objective C, Java,
and Perl.
This is the default behavior for \fBetags\fP.
.TP
.B \-G, \-\-no\-globals
Do not tag global variables.  Typically this reduces the file size by
one fourth.  This is the default behavior for \fBctags\fP.
.TP
\fB\-i\fP \fIfile\fP, \fB\-\-include=\fIfile\fP
Include a note in the tag file indicating that, when searching for a
tag, one should also consult the tags file \fIfile\fP after checking the
current file.  This options is only accepted by \fBetags\fP.
.TP
.B \-I, \-\-ignore\-indentation
Don't rely on indentation as much as we normally do.  Currently, this
means not to assume that a closing brace in the first column is the
final brace of a function or structure definition in C and C++.
.TP
\fB\-l\fP \fIlanguage\fP, \fB\-\-language=\fIlanguage\fP
Parse the following files according to the given language.  More than
one such options may be intermixed with filenames.  Use \fB\-\-help\fP
to get a list of the available languages and their default filename
extensions.  The `auto' language can be used to restore automatic
detection of language based on the file name.  The `none'
language may be used to disable language parsing altogether; only
regexp matching is done in this case (see the \fB\-\-regex\fP option).
.TP
.B \-m, \-\-members
Create tag entries for variables that are members of structure-like
constructs in C++, Objective C, Java.
.TP
.B \-M, \-\-no\-members
Do not tag member variables.  This is the default behavior.
.TP
.B \-\-packages\-only
Only tag packages in Ada files.
.TP
\fB\-o\fP \fItagfile\fP, \fB\-\-output=\fItagfile\fP
Explicit name of file for tag table; overrides default `\|TAGS\|' or
`\|tags\|'.   (But ignored with \fB\-v\fP or \fB\-x\fP.)
.TP
\fB\-r\fP \fIregexp\fP, \fB\-\-regex=\fIregexp\fP, \fB\-\-ignore\-case\-regex=\fIregexp\fP
Make tags based on regexp matching for each line of the files following
this option, in addition to the tags made with the standard parsing based
on language.  When using \-\-regex, case is significant, while it is not
with \-\-ignore\-case\-regex. May be freely intermixed with filenames and
the \fB\-R\fP option.  The regexps are cumulative, i.e. each option will
add to the previous ones.  The regexps are of the form:
.br
	\fB/\fP\fItagregexp\fP[\fB/\fP\fInameregexp\fP]\fB/\fP
.br

where \fItagregexp\fP is used to match the lines that must be tagged.
It should not match useless characters.  If the match is
such that more characters than needed are unavoidably matched by
\fItagregexp\fP, it may be useful to add a \fInameregexp\fP, to
narrow down the tag scope.  \fBctags\fP ignores regexps without a
\fInameregexp\fP.  The syntax of regexps is the same as in emacs,
augmented with intervals of the form \\{m,n\\}, as in ed or grep.
.br
Here are some examples.  All the regexps are quoted to protect them
from shell interpretation.
.br

Tag the DEFVAR macros in the emacs source files:
.br
\fI\-\-regex\='/[ \\t]*DEFVAR_[A-Z_ \\t(]+"\\([^"]+\\)"\/'\fP
.br

Tag VHDL files (this example is a single long line, broken here for
formatting reasons):
.br
\fI\-\-language\=none\ \-\-regex='/[\ \\t]*\\(ARCHITECTURE\\|\\
CONFIGURATION\\)\ +[^\ ]*\ +OF/'\ \-\-regex\='/[\ \\t]*\\
\\(ATTRIBUTE\\|ENTITY\\|FUNCTION\\|PACKAGE\\(\ BODY\\)?\\
\\|PROCEDURE\\|PROCESS\\|TYPE\\)[\ \\t]+\\([^\ \\t(]+\\)/\\3/'\fP
.br

Tag TCL files (this last example shows the usage of a \fItagregexp\fP):
.br
\fI\-\-lang\=none \-\-regex\='/proc[\ \\t]+\\([^\ \\t]+\\)/\\1/'\fP

.br
A regexp can be preceded by {lang}, thus restriciting it to match lines of
files of the specified language.  Use \fBetags --help\fP to obtain a list
of the recognised languages.  This feature is particularly useful inside
\fBregex files\fP.  A regex file contains one regex per line.  Empty lines,
and those lines beginning with space or tab are ignored.  Lines beginning
with @ are references to regex files whose name follows the @ sign.  Other
lines are considered regular expressions like those following \-\-regex.
.br
For example, the command
.br
etags \-\-regex=@regex.file *.c
.br
reads the regexes contained in the file regex.file.
.TP
.B \-R, \-\-no\-regex
Don't do any more regexp matching on the following files.  May be
freely intermixed with filenames and the \fB\-\-regex\fP option.
.TP
.B \-t, \-\-typedefs
Record typedefs in C code as tags.  Since this is the default behaviour
of \fBetags\fP, only \fBctags\fP accepts this option.
.TP
.B \-T, \-\-typedefs\-and\-c++
Generate tag entries for typedefs, struct, enum, and union tags, and
C++ member functions.  Since this is the default behaviour
of \fBetags\fP, only \fBctags\fP accepts this option.
.TP
.B \-u, \-\-update
Update tag entries for \fIfiles\fP specified on command line, leaving
tag entries for other files in place.  Currently, this is implemented
by deleting the existing entries for the given files and then
rewriting the new entries at the end of the tags file.  It is often
faster to simply rebuild the entire tag file than to use this.
Only \fBctags\fP accepts this option.
.TP
.B \-v, \-\-vgrind
Instead of generating a tag file, write index (in \fBvgrind\fP format)
to standard output.  Only \fBctags\fP accepts this option.
.TP
.B \-w, \-\-no\-warn
Suppress warning messages about duplicate entries.  The \fBetags\fP
program does not check for duplicate entries, so this option is not
allowed with it.
.TP
.B \-x, \-\-cxref
Instead of generating a tag file, write a cross reference (in
\fBcxref\fP format) to standard output.  Only \fBctags\fP accepts this option.
.TP
.B \-h, \-H, \-\-help
Print usage information.
.TP
.B \-V, \-\-version
Print the current version of the program (same as the version of the
emacs \fBetags\fP is shipped with).

.SH "SEE ALSO"
`\|\fBemacs\fP\|' entry in \fBinfo\fP; \fIGNU Emacs Manual\fP, Richard
Stallman.
.br
.BR cxref ( 1 ),
.BR emacs ( 1 ),
.BR vgrind ( 1 ),
.BR vi ( 1 ).

.SH COPYING
Copyright (c) 1999 Free Software Foundation, Inc.
.PP
Permission is granted to make and distribute verbatim copies of
this manual provided the copyright notice and this permission notice
are preserved on all copies.
.PP
Permission is granted to copy and distribute modified versions of this
manual under the conditions for verbatim copying, provided that the
entire resulting derived work is distributed under the terms of a
permission notice identical to this one.
.PP
Permission is granted to copy and distribute translations of this
manual into another language, under the above conditions for modified
versions, except that this permission notice may be included in
translations approved by the Free Software Foundation instead of in
the original English.