280 lines
9.1 KiB
Scheme
280 lines
9.1 KiB
Scheme
#| -*-Scheme-*-
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Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
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1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
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2017, 2018, 2019, 2020 Massachusetts Institute of Technology
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This file is part of MIT/GNU Scheme.
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MIT/GNU Scheme is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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MIT/GNU Scheme is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with MIT/GNU Scheme; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301,
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USA.
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|#
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;;;; Texinfo Mode
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(define-command texinfo-mode
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"Make the current mode be Texinfo mode."
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()
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(lambda ()
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(set-current-major-mode! (ref-mode-object texinfo))))
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(define-major-mode texinfo text "Texinfo"
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"Major mode for editing Texinfo files.
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These are files that are used as input for TeX to make printed manuals
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and also to be turned into Info files by \\[texinfo-format-buffer] or
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`makeinfo'. These files must be written in a very restricted and
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modified version of TeX input format.
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Editing commands are like text-mode except that the syntax table is
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set up so expression commands skip Texinfo bracket groups.
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In addition, Texinfo mode provides commands that insert various
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frequently used @-sign commands into the buffer. You can use these
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commands to save keystrokes.
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\\{texinfo}"
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(lambda (buffer)
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(local-set-variable! syntax-table texinfo-mode:syntax-table buffer)
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(local-set-variable! fill-column 72 buffer)
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(local-set-variable! require-final-newline #t buffer)
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(local-set-variable! indent-tabs-mode #f buffer)
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(local-set-variable!
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page-delimiter
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"^@\\(chapter\\|unnumbered \\|appendix \\|majorheading\\|chapheading\\)"
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buffer)
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(local-set-variable! paragraph-start
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(string-append "\010\\|@[a-zA-Z]*[ \n]\\|"
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(ref-variable paragraph-start buffer))
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buffer)
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(local-set-variable! paragraph-separate
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(string-append "\010\\|@[a-zA-Z]*[ \n]\\|"
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(ref-variable paragraph-separate
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buffer))
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buffer)
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(local-set-variable! local-abbrev-table
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(ref-variable texinfo-mode-abbrev-table buffer)
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buffer)
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(event-distributor/invoke! (ref-variable texinfo-mode-hook buffer)
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buffer)))
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(define texinfo-mode:syntax-table (make-char-syntax-table))
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(set-char-syntax! texinfo-mode:syntax-table #\" " ")
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(set-char-syntax! texinfo-mode:syntax-table #\\ " ")
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(set-char-syntax! texinfo-mode:syntax-table #\@ "\\")
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(set-char-syntax! texinfo-mode:syntax-table #\DC1 "\\")
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(set-char-syntax! texinfo-mode:syntax-table #\' "w")
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(define-key 'texinfo '(#\C-c #\{) 'texinfo-insert-braces)
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(define-key 'texinfo '(#\C-c #\}) 'up-list)
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(define-key 'texinfo '(#\C-c #\C-c #\c) 'texinfo-insert-@code)
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(define-key 'texinfo '(#\C-c #\C-c #\d) 'texinfo-insert-@dfn)
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(define-key 'texinfo '(#\C-c #\C-c #\e) 'texinfo-insert-@end)
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(define-key 'texinfo '(#\C-c #\C-c #\f) 'texinfo-insert-@file)
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(define-key 'texinfo '(#\C-c #\C-c #\i) 'texinfo-insert-@item)
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(define-key 'texinfo '(#\C-c #\C-c #\k) 'texinfo-insert-@kbd)
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(define-key 'texinfo '(#\C-c #\C-c #\n) 'texinfo-insert-@node)
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(define-key 'texinfo '(#\C-c #\C-c #\o) 'texinfo-insert-@noindent)
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(define-key 'texinfo '(#\C-c #\C-c #\s) 'texinfo-insert-@samp)
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(define-key 'texinfo '(#\C-c #\C-c #\t) 'texinfo-insert-@table)
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(define-key 'texinfo '(#\C-c #\C-c #\v) 'texinfo-insert-@var)
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(define-key 'texinfo '(#\C-c #\C-c #\x) 'texinfo-insert-@example)
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(define ((texinfo-insert-@-with-arg keyword) argument)
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(call-with-values
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(lambda ()
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(if argument
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(let ((n (command-argument-value argument)))
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(if (< n 0)
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(let ((end
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(skip-chars-backward " \t\n\r\f" (current-point))))
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(values (forward-sexp end n 'ERROR) end))
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(let ((start
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(skip-chars-forward " \t\n\r\f" (current-point))))
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(values start (forward-sexp start n 'ERROR)))))
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(let ((start (current-point)))
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(values start start))))
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(lambda (start end)
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(let ((end (mark-left-inserting-copy end)))
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(insert-string (string-append "@" keyword "{") start)
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(insert-string "}" end)
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(set-current-point! (if argument end (mark-1+ end)))
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(mark-temporary! end)))))
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(define-command texinfo-insert-braces
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"Make a pair of braces and be poised to type inside of them.
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Use \\[up-list] to move forward out of the braces."
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()
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(lambda ()
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(insert-string "{}")
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(set-current-point! (mark-1+ (current-point)))))
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(define-command texinfo-insert-@code
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"Insert a `@code{...}' command in a texinfo buffer.
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A numeric argument says how many words the braces should surround.
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The default is not to surround any existing words with the braces."
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"P"
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(texinfo-insert-@-with-arg "code"))
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(define-command texinfo-insert-@dfn
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"Insert a `@dfn{...}' command in a texinfo buffer.
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A numeric argument says how many words the braces should surround.
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The default is not to surround any existing words with the braces."
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"P"
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(texinfo-insert-@-with-arg "dfn"))
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(define-command texinfo-insert-@example
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"Insert the string `@example' in a texinfo buffer."
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()
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(lambda () (insert-string "@example\n")))
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(define-command texinfo-insert-@file
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"Insert a `@file{...}' command in a texinfo buffer.
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A numeric argument says how many words the braces should surround.
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The default is not to surround any existing words with the braces."
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"P"
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(texinfo-insert-@-with-arg "file"))
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(define-command texinfo-insert-@item
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"Insert the string `@item' in a texinfo buffer."
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()
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(lambda () (insert-string "@item\n")))
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(define-command texinfo-insert-@kbd
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"Insert a `@kbd{...}' command in a texinfo buffer.
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A numeric argument says how many words the braces should surround.
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The default is not to surround any existing words with the braces."
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"P"
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(texinfo-insert-@-with-arg "kbd"))
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(define-command texinfo-insert-@node
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"Insert the string `@node' in a texinfo buffer.
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This also inserts on the following line a comment indicating
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the order of arguments to @node."
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()
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(lambda ()
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(insert-string "@node ")
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(let ((m (mark-right-inserting-copy (current-point))))
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(insert-string "\n@comment node-name, next, previous, up")
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(set-current-point! m)
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(mark-temporary! m))))
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(define-command texinfo-insert-@noindent
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"Insert the string `@noindent' in a texinfo buffer."
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()
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(lambda () (insert-string "@noindent\n")))
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(define-command texinfo-insert-@samp
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"Insert a `@samp{...}' command in a texinfo buffer.
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A numeric argument says how many words the braces should surround.
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The default is not to surround any existing words with the braces."
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"P"
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(texinfo-insert-@-with-arg "samp"))
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(define-command texinfo-insert-@table
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"Insert the string `@table' in a texinfo buffer."
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()
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(lambda () (insert-string "@table ")))
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(define-command texinfo-insert-@var
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"Insert a `@var{...}' command in a texinfo buffer.
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A numeric argument says how many words the braces should surround.
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The default is not to surround any existing words with the braces."
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"P"
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(texinfo-insert-@-with-arg "var"))
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(define-command texinfo-insert-@end
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"Insert the matching `@end' for the last Texinfo command that needs one."
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()
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(lambda ()
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(let ((start (buffer-start (selected-buffer))))
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(let loop ((mark (current-point)) (depth 1))
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(let ((m
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(re-search-backward texinfo-environment-regexp mark start #f)))
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(if m
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(let ((string (re-match-extract-string 1)))
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(cond ((string=? string "end")
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(loop m (+ depth 1)))
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((> depth 1)
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(loop m (- depth 1)))
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(else
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(insert-string "@end ")
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(insert-string string)
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(insert-newline))))
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(insert-string "@end ")))))))
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(define texinfo-environment-regexp
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(string-append "^@"
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(regexp-group "cartouche"
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"copying"
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"defcv"
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"deffn"
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"defivar"
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"defmac"
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"defmethod"
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"defop"
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"defopt"
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"defspec"
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"deftp"
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"deftypefn"
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"deftypefun"
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"deftypevar"
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"deftypevr"
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"defun"
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"defvar"
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"defvr"
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"description"
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"detailmenu"
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"direntry"
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"display"
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"end"
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"enumerate"
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"example"
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"flushleft"
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"flushright"
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"format"
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"ftable"
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"group"
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"html"
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"ifclear"
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"ifhtml"
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"ifinfo"
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"ifnothtml"
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"ifnotinfo"
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"ifnottex"
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"ifset"
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"iftex"
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"ignore"
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"itemize"
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"lisp"
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"macro"
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"menu"
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"multitable"
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"quotation"
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"smalldisplay"
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"smallexample"
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"smallformat"
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"smalllisp"
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"table"
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"tex"
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"titlepage"
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"vtable")
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"\\>"))
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