Fix cross-references between manuals

* doc/misc/viper.texi (Viper Specials):
* doc/misc/url.texi (Tramp):
* doc/misc/sem-user.texi (Smart Jump):
* doc/lispintro/emacs-lisp-intro.texi (Finding More):
* doc/misc/efaq.texi (Replacing text across multiple files): Fix
cross-references between manuals.  (Bug#23612)
* doc/lispintro/emacs-lisp-intro.texi (etags): Node deleted: no
longer relevant to Emacs Lisp programming.

doc/lispintro/emacs-lisp-intro.texi

@@ -584,7 +584,6 @@ Regular Expression Searches
 * re-search-forward::           Very similar to @code{search-forward}.
 * forward-sentence::            A straightforward example of regexp search.
 * forward-paragraph::           A somewhat complex example.
-* etags::                       How to create your own @file{TAGS} table.
 * Regexp Review::
 * re-search Exercises::
 
@@ -4583,54 +4582,21 @@ definition.
 @end ignore
 
 More generally, if you want to see a function in its original source
-file, you can use the @code{find-tag} function to jump to it.
+file, you can use the @code{xref-find-definitions} function to jump to
-@code{find-tag} works with a wide variety of languages, not just
+it.  @code{xref-find-definitions} works with a wide variety of
-Lisp, and C, and it works with non-programming text as well.  For
+languages, not just Lisp, and C, and it works with non-programming
-example, @code{find-tag} will jump to the various nodes in the
+text as well.  For example, @code{xref-find-definitions} will jump to
-Texinfo source file of this document.
+the various nodes in the Texinfo source file of this document.
-The @code{find-tag} function depends on @dfn{tags tables} that record
-the locations of the functions, variables, and other items to which
-@code{find-tag} jumps.
 
-To use the @code{find-tag} command, type @kbd{M-.}  (i.e., press the
+To use the @code{xref-find-definitions} command, type @kbd{M-.}
-period key while holding down the @key{META} key, or else type the
+(i.e., press the period key while holding down the @key{META} key, or
-@key{ESC} key and then type the period key), and then, at the prompt,
+else type the @key{ESC} key and then type the period key), and then,
-type in the name of the function whose source code you want to see,
+at the prompt, type in the name of the function whose source code you
-such as @code{mark-whole-buffer}, and then type @key{RET}.  Emacs will
+want to see, such as @code{mark-whole-buffer}, and then type
-switch buffers and display the source code for the function on your
+@key{RET}.  Emacs will switch buffers and display the source code for
-screen.  To switch back to your current buffer, type @kbd{C-x b
+the function on your screen.  To switch back to your current buffer,
-@key{RET}}.  (On some keyboards, the @key{META} key is labeled
+type @kbd{C-x b @key{RET}}.  (On some keyboards, the @key{META} key is
-@key{ALT}.)
+labeled @key{ALT}.)
-
-@c !!! 22.1.1 tags table location in this paragraph
-@cindex TAGS table, specifying
-@findex find-tag
-Depending on how the initial default values of your copy of Emacs are
-set, you may also need to specify the location of your tags table,
-which is a file called @file{TAGS}.  For example, if you are
-interested in Emacs sources, the tags table you will most likely want,
-if it has already been created for you, will be in a subdirectory of
-the @file{/usr/local/share/emacs/} directory; thus you would use the
-@code{M-x visit-tags-table} command and specify a pathname such as
-@file{/usr/local/share/emacs/22.1.1/lisp/TAGS}.  If the tags table
-has not already been created, you will have to create it yourself.  It
-will be in a file such as @file{/usr/local/src/emacs/src/TAGS}.
-
-@need 1250
-To create a @file{TAGS} file in a specific directory, switch to that
-directory in Emacs using @kbd{M-x cd} command, or list the directory
-with @kbd{C-x d} (@code{dired}).  Then run the compile command, with
-@w{@code{etags *.el}} as the command to execute:
-
-@smallexample
-M-x compile RET etags *.el RET
-@end smallexample
-
-For more information, see @ref{etags, , Create Your Own @file{TAGS} File}.
-
-After you become more familiar with Emacs Lisp, you will find that you will
-frequently use @code{find-tag} to navigate your way around source code;
-and you will create your own @file{TAGS} tables.
 
 @cindex Library, as term for ``file''
 Incidentally, the files that contain Lisp code are conventionally
@@ -12142,7 +12108,6 @@ introduces several new features.
 * re-search-forward::           Very similar to @code{search-forward}.
 * forward-sentence::            A straightforward example of regexp search.
 * forward-paragraph::           A somewhat complex example.
-* etags::                       How to create your own @file{TAGS} table.
 * Regexp Review::
 * re-search Exercises::
 @end menu
@@ -13294,130 +13259,6 @@ key; you will be taken directly to the source.  (Be sure to install
 your sources!  Without them, you are like a person who tries to drive
 a car with his eyes shut!)
 
-@node etags
-@section Create Your Own @file{TAGS} File
-@findex etags
-@cindex @file{TAGS} file, create own
-
-Besides @kbd{C-h f} (@code{describe-function}), another way to see the
-source of a function is to type @kbd{M-.} (@code{find-tag}) and the
-name of the function when prompted for it.  This is a good habit to
-get into.  The @kbd{M-.} (@code{find-tag}) command takes you directly
-to the source for a function, variable, or node.  The function depends
-on tags tables to tell it where to go.
-
-If the @code{find-tag} function first asks you for the name of a
-@file{TAGS} table, give it the name of a @file{TAGS} file such as
-@file{/usr/local/src/emacs/src/TAGS}.  (The exact path to your
-@file{TAGS} file depends on how your copy of Emacs was installed.  I
-just told you the location that provides both my C and my Emacs Lisp
-sources.)
-
-You can also create your own @file{TAGS} file for directories that
-lack one.
-
-You often need to build and install tags tables yourself.  They are
-not built automatically.  A tags table is called a @file{TAGS} file;
-the name is in upper case letters.
-
-You can create a @file{TAGS} file by calling the @code{etags} program
-that comes as a part of the Emacs distribution.  Usually, @code{etags}
-is compiled and installed when Emacs is built.  (@code{etags} is not
-an Emacs Lisp function or a part of Emacs; it is a C program.)
-
-@need 1250
-To create a @file{TAGS} file, first switch to the directory in which
-you want to create the file.  In Emacs you can do this with the
-@kbd{M-x cd} command, or by visiting a file in the directory, or by
-listing the directory with @kbd{C-x d} (@code{dired}).  Then run the
-compile command, with @w{@code{etags *.el}} as the command to execute
-
-@smallexample
-M-x compile RET etags *.el RET
-@end smallexample
-
-@noindent
-to create a @file{TAGS} file for Emacs Lisp.
-
-For example, if you have a large number of files in your
-@file{~/emacs} directory, as I do---I have 137 @file{.el} files in it,
-of which I load 12---you can create a @file{TAGS} file for the Emacs
-Lisp files in that directory.
-
-@need 1250
-The @code{etags} program takes all the usual shell wildcards.  For
-example, if you have two directories for which you want a single
-@file{TAGS} file, type @w{@code{etags *.el ../elisp/*.el}}, where
-@file{../elisp/} is the second directory:
-
-@smallexample
-M-x compile RET etags *.el ../elisp/*.el RET
-@end smallexample
-
-@need 1250
-Type
-
-@smallexample
-M-x compile RET etags --help RET
-@end smallexample
-
-@noindent
-to see a list of the options accepted by @code{etags} as well as a
-list of supported languages.
-
-The @code{etags} program handles more than 20 languages, including
-Emacs Lisp, Common Lisp, Scheme, C, C++, Ada, Fortran, HTML, Java,
-LaTeX, Pascal, Perl, PostScript, Python, TeX, Texinfo, makefiles, and
-most assemblers.  The program has no switches for specifying the
-language; it recognizes the language in an input file according to its
-file name and contents.
-
-@file{etags} is very helpful when you are writing code yourself and
-want to refer back to functions you have already written.  Just run
-@code{etags} again at intervals as you write new functions, so they
-become part of the @file{TAGS} file.
-
-If you think an appropriate @file{TAGS} file already exists for what
-you want, but do not know where it is, you can use the @code{locate}
-program to attempt to find it.
-
-Type @w{@kbd{M-x locate @key{RET} TAGS @key{RET}}} and Emacs will list
-for you the full path names of all your @file{TAGS} files.  On my
-system, this command lists 34 @file{TAGS} files.  On the other hand, a
-plain vanilla system I recently installed did not contain any
-@file{TAGS} files.
-
-If the tags table you want has been created, you can use the @code{M-x
-visit-tags-table} command to specify it.  Otherwise, you will need to
-create the tag table yourself and then use @code{M-x
-visit-tags-table}.
-
-@subsubheading Building Tags in the Emacs sources
-@cindex Building Tags in the Emacs sources
-@cindex Tags in the Emacs sources
-@findex make tags
-
-The GNU Emacs sources come with a @file{Makefile} that contains a
-sophisticated @code{etags} command that creates, collects, and merges
-tags tables from all over the Emacs sources and puts the information
-into one @file{TAGS} file in the @file{src/} directory.  (The
-@file{src/} directory is below the top level of your Emacs directory.)
-
-@need 1250
-To build this @file{TAGS} file, go to the top level of your Emacs
-source directory and run the compile command @code{make tags}:
-
-@smallexample
-M-x compile RET make tags RET
-@end smallexample
-
-@noindent
-(The @code{make tags} command works well with the GNU Emacs sources,
-as well as with some other source packages.)
-
-For more information, see @ref{Tags, , Tag Tables, emacs, The GNU Emacs
-Manual}.
-
 @node Regexp Review
 @section Review
 

doc/misc/efaq.texi

@@ -2290,7 +2290,7 @@ is actually typical for regexp syntax.)
 @cindex Recursive search/replace operations
 
 Dired mode (@kbd{M-x dired @key{RET}}, or @kbd{C-x d}) supports the
-command @code{dired-do-query-replace-regexp} (@kbd{Q}), which allows
+command @code{dired-do-find-regexp-and-replace} (@kbd{Q}), which allows
 users to replace regular expressions in multiple files.
 
 You can use this command to perform search/replace operations on
@@ -2315,7 +2315,7 @@ To accept all replacements in each file, hit @kbd{!}.
 Another way to do the same thing is to use the ``tags'' feature of
 Emacs: it includes the command @code{tags-query-replace} which performs
 a query-replace across all the files mentioned in the @file{TAGS} file.
-@xref{Tags Search,,, emacs, The GNU Emacs Manual}.
+@xref{Identifier Search,,, emacs, The GNU Emacs Manual}.
 
 @node Documentation for etags
 @section Where is the documentation for @code{etags}?

doc/misc/sem-user.texi

@@ -874,9 +874,9 @@ command, like this:
 @end example
 @end defun
 
-These commands are often more accurate than the @code{find-tag}
+These commands are often more accurate than the @code{xref-find-definitions}
-command (@pxref{Tags,,,emacs,Emacs manual}), because the Semantic
+command (@pxref{Looking Up Identifiers,,,emacs,Emacs manual}), because
-Analyzer is context-sensitive.
+the Semantic Analyzer is context-sensitive.
 
 You can also use @kbd{C-c , j} (@code{semantic-complete-jump-local})
 and @kbd{C-c , J} (@code{semantic-complete-jump}) to navigate tags.

doc/misc/url.texi

@@ -820,12 +820,12 @@ The file transfer protocol.  @xref{file/ftp}.
 
 @item ssh
 @cindex ssh
-The secure shell protocol.  @xref{Inline Methods,,, tramp, The Tramp
+The secure shell protocol.  @xref{Inline methods,,, tramp, The Tramp
 Manual}.
 
 @item scp
 @cindex scp
-The secure file copy protocol.  @xref{External Methods,,, tramp, The
+The secure file copy protocol.  @xref{External methods,,, tramp, The
 Tramp Manual}.
 
 @item rsync

doc/misc/viper.texi

@@ -2568,7 +2568,7 @@ above block should be commented out.
 
 Even though these commands are sometimes useful, they are no substitute for
 the powerful @emph{tag table} facility of Emacs.  Viper's @kbd{:tag} command
-in a primitive interface to Emacs tags.  @xref{Tags,Tags,Tags,emacs,
+in a primitive interface to Emacs tags.  @xref{Tags Tables,,,emacs,
 The GNU Emacs Manual}, for more information on tags.
 
 The following two commands are normally bound to a mouse click and are part