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gecko-dev/js2/semantics/RTF.lisp
waldemar%netscape.com a4ec14d393 Updated to work under Allegro Common Lisp
1999-11-20 02:16:56 +00:00

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;;; The contents of this file are subject to the Mozilla Public
;;; License Version 1.1 (the "License"); you may not use this file
;;; except in compliance with the License. You may obtain a copy of
;;; the License at http://www.mozilla.org/MPL/
;;;
;;; Software distributed under the License is distributed on an "AS
;;; IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
;;; implied. See the License for the specific language governing
;;; rights and limitations under the License.
;;;
;;; The Original Code is the Language Design and Prototyping Environment.
;;;
;;; The Initial Developer of the Original Code is Netscape Communications
;;; Corporation. Portions created by Netscape Communications Corporation are
;;; Copyright (C) 1999 Netscape Communications Corporation. All
;;; Rights Reserved.
;;;
;;; Contributor(s): Waldemar Horwat <waldemar@acm.org>
;;;
;;; RTF reader and writer
;;;
;;; Waldemar Horwat (waldemar@acm.org)
;;;
(defvar *rtf-author* "Waldemar Horwat")
(defvar *rtf-company* "Netscape")
;;; 1440 twips/inch
;;; 20 twips/pt
(defparameter *rtf-definitions*
'((:rtf-intro rtf 1 mac ansicpg 10000 uc 1 deff 0 deflang 2057 deflangfe 2057)
;Fonts
((+ :rtf-intro) :fonttbl)
(:fonttbl (fonttbl :fonts))
(:times f 0)
((+ :fonts) (:times froman fcharset 256 fprq 2 (* panose "02020603050405020304") "Times New Roman;"))
(:symbol f 3)
((+ :fonts) (:symbol ftech fcharset 2 fprq 2 "Symbol;"))
(:helvetica f 4)
((+ :fonts) (:helvetica fnil fcharset 256 fprq 2 "Helvetica;"))
(:courier f 5)
((+ :fonts) (:courier fmodern fcharset 256 fprq 2 "Courier New;"))
(:palatino f 6)
((+ :fonts) (:palatino fnil fcharset 256 fprq 2 "Palatino;"))
(:zapf-chancery f 7)
((+ :fonts) (:zapf-chancery fscript fcharset 256 fprq 2 "Zapf Chancery;"))
(:zapf-dingbats f 8)
((+ :fonts) (:zapf-dingbats ftech fcharset 2 fprq 2 "Zapf Dingbats;"))
;Color table
((+ :rtf-intro) :colortbl)
(:colortbl (colortbl ";" ;0
red 0 green 0 blue 0 ";" ;1
red 0 green 0 blue 255 ";" ;2
red 0 green 255 blue 255 ";" ;3
red 0 green 255 blue 0 ";" ;4
red 255 green 0 blue 255 ";" ;5
red 255 green 0 blue 0 ";" ;6
red 255 green 255 blue 0 ";" ;7
red 255 green 255 blue 255 ";" ;8
red 0 green 0 blue 128 ";" ;9
red 0 green 128 blue 128 ";" ;10
red 0 green 128 blue 0 ";" ;11
red 128 green 0 blue 128 ";" ;12
red 128 green 0 blue 0 ";" ;13
red 128 green 128 blue 0 ";" ;14
red 128 green 128 blue 128 ";" ;15
red 192 green 192 blue 192 ";")) ;16
(:black cf 1)
(:blue cf 2)
(:turquoise cf 3)
(:bright-green cf 4)
(:pink cf 5)
(:red cf 6)
(:yellow cf 7)
(:white cf 8)
(:dark-blue cf 9)
(:teal cf 10)
(:green cf 11)
(:violet cf 12)
(:dark-red cf 13)
(:dark-yellow cf 14)
(:gray-50 cf 15)
(:gray-25 cf 16)
;Misc.
(:spc " ")
(:tab2 tab)
(:tab3 tab)
(:nbhy _) ;Non-breaking hyphen
(:8-pt fs 16)
(:9-pt fs 18)
(:10-pt fs 20)
(:12-pt fs 24)
(:no-language lang 1024)
(:english-us lang 1033)
(:english-uk lang 2057)
(:english :english-us)
(:reset-section sectd)
(:new-section sect)
(:reset-paragraph pard plain)
((:new-paragraph t) par)
((:new-line t) line)
;Symbols (-10 suffix means 10-point, etc.)
((:bullet 1) bullet)
((:minus 1) endash)
((:not-equal 1) u 8800 \' 173)
((:less-or-equal 1) u 8804 \' 178)
((:greater-or-equal 1) u 8805 \' 179)
((:infinity 1) u 8734 \' 176)
((:left-single-quote 1) lquote)
((:right-single-quote 1) rquote)
((:left-double-quote 1) ldblquote)
((:right-double-quote 1) rdblquote)
((:left-angle-quote 1) u 171 \' 199)
((:right-angle-quote 1) u 187 \' 200)
((:bottom-10 1) (field (* fldinst "SYMBOL 94 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:vector-assign-10 2) (field (* fldinst "SYMBOL 172 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:up-arrow-10 1) (field (* fldinst "SYMBOL 173 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:function-arrow-10 2) (field (* fldinst "SYMBOL 174 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:cartesian-product-10 2) (field (* fldinst "SYMBOL 180 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:identical-10 2) (field (* fldinst "SYMBOL 186 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:circle-plus-10 2) (field (* fldinst "SYMBOL 197 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:empty-10 2) (field (* fldinst "SYMBOL 198 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:intersection-10 1) (field (* fldinst "SYMBOL 199 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:union-10 1) (field (* fldinst "SYMBOL 200 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:member-10 2) (field (* fldinst "SYMBOL 206 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:not-member-10 2) (field (* fldinst "SYMBOL 207 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:derives-10 2) (field (* fldinst "SYMBOL 222 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:left-triangle-bracket-10 1) (field (* fldinst "SYMBOL 225 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:right-triangle-bracket-10 1) (field (* fldinst "SYMBOL 241 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:big-plus-10 2) (field (* fldinst "SYMBOL 58 \\f \"Zapf Dingbats\" \\s 10") (fldrslt :zapf-dingbats :10-pt)))
((:alpha 1) (field (* fldinst "SYMBOL 97 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:beta 1) (field (* fldinst "SYMBOL 98 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:chi 1) (field (* fldinst "SYMBOL 99 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:delta 1) (field (* fldinst "SYMBOL 100 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:epsilon 1) (field (* fldinst "SYMBOL 101 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:phi 1) (field (* fldinst "SYMBOL 102 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:gamma 1) (field (* fldinst "SYMBOL 103 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:eta 1) (field (* fldinst "SYMBOL 104 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:iota 1) (field (* fldinst "SYMBOL 105 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:kappa 1) (field (* fldinst "SYMBOL 107 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:lambda 1) (field (* fldinst "SYMBOL 108 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:mu 1) (field (* fldinst "SYMBOL 109 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:nu 1) (field (* fldinst "SYMBOL 110 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:omicron 1) (field (* fldinst "SYMBOL 111 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:pi 1) (field (* fldinst "SYMBOL 112 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:theta 1) (field (* fldinst "SYMBOL 113 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:rho 1) (field (* fldinst "SYMBOL 114 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:sigma 1) (field (* fldinst "SYMBOL 115 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:tau 1) (field (* fldinst "SYMBOL 116 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:upsilon 1) (field (* fldinst "SYMBOL 117 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:omega 1) (field (* fldinst "SYMBOL 119 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:xi 1) (field (* fldinst "SYMBOL 120 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:psi 1) (field (* fldinst "SYMBOL 121 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
((:zeta 1) (field (* fldinst "SYMBOL 122 \\f \"Symbol\" \\s 10") (fldrslt :symbol :10-pt)))
;Styles
((+ :rtf-intro) :stylesheet)
(:stylesheet (stylesheet :styles))
(:normal-num 0)
(:normal s :normal-num)
((+ :styles) (widctlpar :10-pt :english snext :normal-num "Normal;"))
(:body-text-num 1)
(:body-text s :body-text-num qj sa 120 widctlpar :10-pt :english)
((+ :styles) (:body-text sbasedon :normal-num snext :body-text-num "Body Text;"))
(:header-num 2)
(:header s :header-num nowidctlpar tqr tx 8640 :10-pt :english)
((+ :styles) (:header sbasedon :normal-num snext :header-num "header;"))
(:footer-num 3)
(:footer s :footer-num nowidctlpar tqc tx 4320 :10-pt :english)
((+ :styles) (:footer sbasedon :normal-num snext :footer-num "footer;"))
(:section-heading-num 4)
(:section-heading s :section-heading-num sa 60 keep keepn nowidctlpar hyphpar 0 level 3 b :12-pt :english)
((+ :styles) (:section-heading sbasedon :subsection-heading-num snext :body-text-num "heading 3;"))
(:subsection-heading-num 5)
(:subsection-heading s :subsection-heading-num sa 30 keep keepn nowidctlpar hyphpar 0 level 4 b :10-pt :english)
((+ :styles) (:subsection-heading sbasedon :normal-num snext :body-text-num "heading 4;"))
(:grammar-num 10)
(:grammar s :grammar-num nowidctlpar hyphpar 0 :10-pt :no-language)
((+ :styles) (:grammar sbasedon :normal-num snext :grammar-num "Grammar;"))
(:grammar-header-num 11)
(:grammar-header s :grammar-header-num sb 60 keep keepn nowidctlpar hyphpar 0 b :10-pt :english)
((+ :styles) (:grammar-header sbasedon :normal-num snext :grammar-lhs-num "Grammar Header;"))
(:grammar-lhs-num 12)
(:grammar-lhs s :grammar-lhs-num fi -1440 li 1800 sb 120 keep keepn nowidctlpar hyphpar 0 outlinelevel 4 :10-pt :no-language)
((+ :styles) (:grammar-lhs sbasedon :grammar-num snext :grammar-rhs-num "Grammar LHS;"))
(:grammar-lhs-last-num 13)
(:grammar-lhs-last s :grammar-lhs-last-num fi -1440 li 1800 sb 120 sa 120 keep nowidctlpar hyphpar 0 outlinelevel 4 :10-pt :no-language)
((+ :styles) (:grammar-lhs-last sbasedon :grammar-num snext :grammar-lhs-num "Grammar LHS Last;"))
(:grammar-rhs-num 14)
(:grammar-rhs s :grammar-rhs-num fi -1260 li 1800 keep keepn nowidctlpar tx 720 hyphpar 0 :10-pt :no-language)
((+ :styles) (:grammar-rhs sbasedon :grammar-num snext :grammar-rhs-num "Grammar RHS;"))
(:grammar-rhs-last-num 15)
(:grammar-rhs-last s :grammar-rhs-last-num fi -1260 li 1800 sa 120 keep nowidctlpar tx 720 hyphpar 0 :10-pt :no-language)
((+ :styles) (:grammar-rhs-last sbasedon :grammar-rhs-num snext :grammar-lhs-num "Grammar RHS Last;"))
(:grammar-argument-num 16)
(:grammar-argument s :grammar-argument-num fi -1440 li 1800 sb 120 sa 120 keep nowidctlpar hyphpar 0 outlinelevel 4 :10-pt :no-language)
((+ :styles) (:grammar-argument sbasedon :grammar-num snext :grammar-lhs-num "Grammar Argument;"))
(:semantics-num 20)
(:semantics s :semantics-num li 180 sb 60 sa 60 keep nowidctlpar hyphpar 0 :10-pt :no-language)
((+ :styles) (:semantics sbasedon :normal-num snext :semantics-num "Semantics;"))
(:semantics-next-num 21)
(:semantics-next s :semantics-next-num li 540 sa 60 keep nowidctlpar hyphpar 0 :10-pt :no-language)
((+ :styles) (:semantics-next sbasedon :semantics-num snext :semantics-next-num "Semantics Next;"))
(:default-paragraph-font-num 30)
(:default-paragraph-font cs :default-paragraph-font-num)
((+ :styles) (* :default-paragraph-font additive "Default Paragraph Font;"))
(:page-number-num 31)
(:page-number cs :page-number-num)
((+ :styles) (* :page-number additive sbasedon :default-paragraph-font-num "page number;"))
(:character-literal-num 32)
(:character-literal cs :character-literal-num b :courier :blue :no-language)
((+ :styles) (* :character-literal additive sbasedon :default-paragraph-font-num "Character Literal;"))
(:character-literal-control-num 33)
(:character-literal-control cs :character-literal-control-num b 0 :times :dark-blue)
((+ :styles) (* :character-literal-control additive sbasedon :default-paragraph-font-num "Character Literal Control;"))
(:terminal-num 34)
(:terminal cs :terminal-num b :palatino :teal :no-language)
((+ :styles) (* :terminal additive sbasedon :default-paragraph-font-num "Terminal;"))
(:terminal-keyword-num 35)
(:terminal-keyword cs :terminal-keyword-num b :courier :blue :no-language)
((+ :styles) (* :terminal-keyword additive sbasedon :terminal-num "Terminal Keyword;"))
(:nonterminal-num 36)
(:nonterminal cs :nonterminal-num i :palatino :dark-red :no-language)
((+ :styles) (* :nonterminal additive sbasedon :default-paragraph-font-num "Nonterminal;"))
(:nonterminal-attribute-num 37)
(:nonterminal-attribute cs :nonterminal-attribute-num i 0)
((+ :styles) (* :nonterminal-attribute additive sbasedon :default-paragraph-font-num "Nonterminal Attribute;"))
(:nonterminal-argument-num 38)
(:nonterminal-argument cs :nonterminal-argument-num)
((+ :styles) (* :nonterminal-argument additive sbasedon :default-paragraph-font-num "Nonterminal Argument;"))
(:semantic-keyword-num 40)
(:semantic-keyword cs :semantic-keyword-num b :times)
((+ :styles) (* :semantic-keyword additive sbasedon :default-paragraph-font-num "Semantic Keyword;"))
(:type-expression-num 41)
(:type-expression cs :type-expression-num :times :red :no-language)
((+ :styles) (* :type-expression additive sbasedon :default-paragraph-font-num "Type Expression;"))
(:type-name-num 42)
(:type-name cs :type-name-num scaps :times :red :no-language)
((+ :styles) (* :type-name additive sbasedon :type-expression-num "Type Name;"))
(:field-name-num 43)
(:field-name cs :field-name-num :helvetica :red :no-language)
((+ :styles) (* :field-name additive sbasedon :type-expression-num "Field Name;"))
(:global-variable-num 44)
(:global-variable cs :global-variable-num i :times :green :no-language)
((+ :styles) (* :global-variable additive sbasedon :default-paragraph-font-num "Global Variable;"))
(:local-variable-num 45)
(:local-variable cs :local-variable-num i :times :bright-green :no-language)
((+ :styles) (* :local-variable additive sbasedon :default-paragraph-font-num "Local Variable;"))
(:action-name-num 46)
(:action-name cs :action-name-num :zapf-chancery :violet :no-language)
((+ :styles) (* :action-name additive sbasedon :default-paragraph-font-num "Action Name;"))
;Headers and Footers
(:header-group header :reset-paragraph :header)
(:footer-group (footer :reset-paragraph :footer tab (field (* fldinst (:page-number " PAGE ")) (fldrslt (:page-number :no-language "1")))))
;Document Formatting
(:docfmt widowctrl
ftnbj ;footnotes at bottom of page
aenddoc ;endnotes at end of document
fet 0 ;footnotes only -- no endnotes
formshade ;shade form fields
viewkind 4 ;normal view mode
viewscale 125 ;125% view
pgbrdrhead ;page border surrounds header
pgbrdrfoot) ;page border surrounds footer
;Section Formatting
;Specials
(:text :english)
(:invisible v)
((:but-not 6) (b "except"))
((:begin-negative-lookahead 13) "[lookahead" :not-member-10 "{")
((:end-negative-lookahead 2) "}]")
((:no-line-break 15) "[no" ~ "line" ~ "break]")
(:subscript sub)
(:superscript super)
(:plain-subscript b 0 i 0 :subscript)
((:action-begin 1) "[")
((:action-end 1) "]")
((:vector-begin 1) (b "["))
((:vector-end 1) (b "]"))
((:empty-vector 2) (b "[]"))
((:vector-append 2) :circle-plus-10)
((:tuple-begin 1) (b :left-triangle-bracket-10))
((:tuple-end 1) (b :right-triangle-bracket-10))
((:true 4) (:global-variable "true"))
((:false 5) (:global-variable "false"))
))
;;; ------------------------------------------------------------------------------------------------------
;;; SIMPLE LINE BREAKER
(defparameter *limited-line-right-margin* 100)
; Housekeeping dynamic variables
(defvar *current-limited-lines*) ;Items written so far via break-line to the innermost write-limited-lines
(defvar *current-limited-lines-non-empty*) ;True if something was written to *current-limited-lines*
(defvar *current-limited-position*) ;Number of characters written since the last newline to *current-limited-lines*
; Capture the text written by the emitter function to its single parameter
; (an output stream), dividing the text as specified by dynamically scoped calls
; to break-line. Return the text as a base-string.
(defun write-limited-lines (emitter)
(let ((limited-stream (make-string-output-stream :element-type #-mcl 'character #+mcl 'base-character))
(*current-limited-lines* (make-string-output-stream :element-type #-mcl 'character #+mcl 'base-character))
(*current-limited-lines-non-empty* nil)
(*current-limited-position* 0))
(funcall emitter limited-stream)
(break-line limited-stream)
(get-output-stream-string *current-limited-lines*)))
; Capture the text written by the emitter body to stream-var,
; dividing the text as specified by dynamically scoped calls
; to break-line. Write the result to the stream-var stream.
(defmacro write-limited-block (stream-var &body emitter)
`(progn
(write-string
(write-limited-lines #'(lambda (,stream-var) ,@emitter))
,stream-var)
nil))
; Indicate that this is a potential place for a line break in the stream provided
; by write-limited-lines. If subdivide is true, also indicate that line breaks can
; be inserted anywhere between the previous such point indicated by break-line
; (or the beginning of write-limited-lines if this is the first call to break-line)
; and this point.
(defun break-line (limited-stream &optional subdivide)
(let* ((new-chars (get-output-stream-string limited-stream))
(length (length new-chars)))
(unless (zerop length)
(labels
((subdivide-new-chars (start)
(let ((length-remaining (- length start))
(room-on-line (- *limited-line-right-margin* *current-limited-position*)))
(if (>= room-on-line length-remaining)
(progn
(write-string new-chars *current-limited-lines* :start start)
(incf *current-limited-position* length-remaining))
(let ((end (+ start room-on-line)))
(write-string new-chars *current-limited-lines* :start start :end end)
(write-char #\newline *current-limited-lines*)
(setq *current-limited-position* 0)
(subdivide-new-chars end))))))
(let ((position (+ *current-limited-position* length))
(has-newlines (find #\newline new-chars)))
(cond
((or has-newlines
(and (> position *limited-line-right-margin*) (not subdivide)))
(when *current-limited-lines-non-empty*
(write-char #\newline *current-limited-lines*))
(write-string new-chars *current-limited-lines*)
;Force a line break if break-line is called again and the current
;new-chars contained a line break.
(setq *current-limited-position*
(if has-newlines
(1+ *limited-line-right-margin*)
length)))
((<= position *limited-line-right-margin*)
(write-string new-chars *current-limited-lines*)
(setq *current-limited-position* position))
((>= *current-limited-position* *limited-line-right-margin*)
(write-char #\newline *current-limited-lines*)
(setq *current-limited-position* 0)
(subdivide-new-chars 0))
(t (subdivide-new-chars 0)))
(setq *current-limited-lines-non-empty* t))))))
;;; ------------------------------------------------------------------------------------------------------
;;; RTF READER
; Return true if char can be a part of an RTF control word.
(defun rtf-control-word-char? (char)
(and (char>= char #\a) (char<= char #\z)))
; Read RTF from the character stream and return it in list form.
; Each { ... } group is a sublist.
; Each RTF control symbol or word is represented by a lisp symbol.
; If an RTF control has a numeric argument, then its lisp symbol is followed
; by an integer equal to the argument's value.
; Newlines not escaped by backslashes are ignored.
(defun read-rtf (stream)
(labels
((read (&optional (eof-error-p t))
(read-char stream eof-error-p nil))
(read-group (nested)
(let ((char (read nested)))
(case char
((nil) nil)
(#\} (if nested
nil
(error "Mismatched }")))
(#\{ (cons
(read-group t)
(read-group nested)))
(#\\ (append
(read-control)
(read-group nested)))
(#\newline (read-group nested))
(t (read-text nested (list char))))))
(read-text (nested chars)
(let ((char (read nested)))
(case char
((nil)
(list (coerce (nreverse chars) 'string)))
((#\{ #\} #\\)
(cons (coerce (nreverse chars) 'string)
(progn
(unread-char char stream)
(read-group nested))))
(#\newline (read-text nested chars))
(t (read-text nested (cons char chars))))))
(read-integer (value need-digit)
(let* ((char (read))
(digit (digit-char-p char)))
(cond
(digit (read-integer (+ (* value 10) digit) nil))
(need-digit (error "Empty number"))
((eql char #\space) value)
(t (unread-char char stream)
value))))
(read-hex (n-digits)
(let ((value 0))
(dotimes (n n-digits)
(let ((digit (digit-char-p (read) 16)))
(unless digit
(error "Bad hex digit"))
(setq value (+ (* value 16) digit))))
value))
(read-control ()
(let ((char (read)))
(if (rtf-control-word-char? char)
(let* ((control-string (read-control-word (list char)))
(control-symbol (intern (string-upcase control-string)))
(char (read)))
(case char
(#\space (list control-symbol))
(#\- (list control-symbol (- (read-integer 0 t))))
((#\0 #\1 #\2 #\3 #\4 #\5 #\6 #\7 #\8 #\9)
(unread-char char stream)
(list control-symbol (read-integer 0 t)))
(t (unread-char char stream)
(list control-symbol))))
(let* ((control-string (string char))
(control-symbol (intern (string-upcase control-string))))
(if (eq control-symbol '\')
(list control-symbol (read-hex 2))
(list control-symbol))))))
(read-control-word (chars)
(let ((char (read)))
(if (rtf-control-word-char? char)
(read-control-word (cons char chars))
(progn
(unread-char char stream)
(coerce (nreverse chars) 'string))))))
(read-group nil)))
; Read RTF from the text file with the given name (relative to the
; local directory) and return it in list form.
(defun read-rtf-from-local-file (filename)
(with-open-file (stream (filename-to-semantic-engine-pathname filename)
:direction :input)
(read-rtf stream)))
;;; ------------------------------------------------------------------------------------------------------
;;; RTF WRITER
(defconstant *rtf-special* '(#\\ #\{ #\}))
; Return the string with characters in *rtf-special* preceded by backslashes.
; If there are no such characters, the returned string may be eq to the input string.
(defun escape-rtf (string)
(let ((i (position-if #'(lambda (char) (member char *rtf-special*)) string)))
(if i
(let* ((string-length (length string))
(result-string (make-array string-length :element-type #-mcl 'character #+mcl 'base-character :adjustable t :fill-pointer i)))
(replace result-string string)
(do ((i i (1+ i)))
((= i string-length))
(let ((char (char string i)))
(when (member char *rtf-special*)
(vector-push-extend #\\ result-string))
(vector-push-extend char result-string)))
result-string)
string)))
; Write the string with characters in *rtf-special* preceded by backslashes and not allowing
; linebreaks between a backslash and the character it is escaping. Start with the character
; at offset start in the given string.
(defun write-escaped-rtf (stream string start)
(let ((end (position-if #'(lambda (char) (member char *rtf-special*)) string :start start)))
(if end
(progn
(unless (= start end)
(write-string string stream :start start :end end)
(break-line stream t))
(write-char #\\ stream)
(write-char (char string end) stream)
(break-line stream)
(write-escaped-rtf stream string (1+ end)))
(unless (= start (length string))
(write-string string stream :start start)
(break-line stream t)))))
; Write RTF to the character stream. See read-rtf for a description
; of the layout of the rtf list.
(defun write-rtf (rtf &optional (stream t))
(labels
((write-group-contents (rtf stream)
(let ((first-rtf (first rtf))
(rest-rtf (rest rtf)))
(cond
((listp first-rtf)
(write-group first-rtf stream t))
((stringp first-rtf)
(write-escaped-rtf stream first-rtf 0))
((symbolp first-rtf)
(write-char #\\ stream)
(write first-rtf :stream stream)
(cond
((alpha-char-p (char (symbol-name first-rtf) 0))
(when (integerp (first rest-rtf))
(write (first rest-rtf) :stream stream)
(setq rest-rtf (rest rest-rtf)))
(let ((first-rest (first rest-rtf)))
(when (and (stringp first-rest)
(or (zerop (length first-rest))
(let ((ch (char first-rest 0)))
(or (alphanumericp ch)
(eql ch #\space)
(eql ch #\-)
(eql ch #\+)))))
(write-char #\space stream))))
((eq first-rtf '\')
(unless (integerp (first rest-rtf))
(error "Bad rtf: ~S" rtf))
(format stream "~2,'0x" (first rest-rtf))
(setq rest-rtf (rest rest-rtf)))))
(t (error "Bad rtf: ~S" rtf)))
(when rest-rtf
(break-line stream)
(write-group-contents rest-rtf stream))))
(write-group (rtf stream nested)
(write-limited-block stream
(when nested
(write-char #\{ stream))
(when rtf
(write-group-contents rtf stream))
(when nested
(write-char #\} stream)))))
(with-standard-io-syntax
(let ((*print-readably* nil)
(*print-escape* nil)
(*print-case* :downcase))
(write-group rtf stream nil)))))
; Write RTF to the text file with the given name (relative to the
; local directory).
(defun write-rtf-to-local-file (filename rtf)
(with-open-file (stream (filename-to-semantic-engine-pathname filename)
:direction :output
:if-exists :supersede
#+mcl :external-format #+mcl "RTF "
#+mcl :mac-file-creator #+mcl "MSWD")
(write-rtf rtf stream)))
;;; ------------------------------------------------------------------------------------------------------
;;; RTF STREAMS
(defstruct (rtf-stream (:include markup-stream)
(:constructor allocate-rtf-stream (env head tail level logical-position))
(:copier nil)
(:predicate rtf-stream?))
(style nil :type symbol)) ;Current section or paragraph style or nil if none or emitting paragraph contents
(defmethod print-object ((rtf-stream rtf-stream) stream)
(print-unreadable-object (rtf-stream stream :identity t)
(write-string "rtf-stream" stream)))
; Make a new, empty, open rtf-stream with the given definitions for its markup-env.
(defun make-rtf-stream (markup-env level &optional logical-position)
(let ((head (list nil)))
(allocate-rtf-stream markup-env head head level logical-position)))
; Make a new, empty, open, top-level rtf-stream with the given definitions
; for its markup-env.
(defun make-top-level-rtf-stream (rtf-definitions)
(let ((head (list nil))
(markup-env (make-markup-env nil)))
(markup-env-define-alist markup-env rtf-definitions)
(allocate-rtf-stream markup-env head head *markup-stream-top-level* nil)))
; Append a block to the end of the rtf-stream. The block may be inlined
; if nothing else follows it in the rtf-stream.
(defun rtf-stream-append-or-inline-block (rtf-stream block)
(assert-type block list)
(when block
(let ((pretail (markup-stream-tail rtf-stream)))
(markup-stream-append1 rtf-stream block)
(setf (markup-stream-pretail rtf-stream) pretail))))
; Return the approximate width of the rtf item; return t if it is a line break.
; Also allow rtf groups as long as they do not contain line breaks.
(defmethod markup-group-width ((rtf-stream rtf-stream) item)
(if (consp item)
(reduce #'+ item :key #'(lambda (subitem) (markup-group-width rtf-stream subitem)))
(markup-width rtf-stream item)))
; Return the information group or nil if none is needed.
; Any of the inputs can be nil, in which case the corresponding info entry is omitted.
(defun generate-document-info (title author company time)
(and (or title author company time)
(cons 'info
(nconc
(and title (list (list 'title (assert-type title string))))
(and author (list (list 'author (assert-type author string))
(list 'operator author)))
(and time (multiple-value-bind (second minute hour day month year) (decode-universal-time time)
(let ((rtf-time (list 'yr year 'mo month 'dy day 'hr hour 'min minute 'sec second)))
(list (cons 'creatim rtf-time)
(cons 'revtim rtf-time)
(list 'edmins 0)))))
(and company (list (list '* 'company (assert-type company string))))))))
(defun time-to-string (time)
(multiple-value-bind (second minute hour day month year weekday) (decode-universal-time time)
(declare (ignore second minute hour))
(format nil "~A, ~A ~D, ~D"
(nth weekday '("Monday" "Tuesday" "Wednesday" "Thursday" "Friday" "Saturday" "Sunday"))
(nth (1- month) '("January" "February" "March" "April" "May" "June" "July" "August" "September" "October" "November" "December"))
day
year)))
; Return the header group.
(defun generate-header-group (title time)
(list :header-group (assert-type title string) 'tab (time-to-string time)))
; Create a top-level rtf-stream and call emitter to emit its contents.
; emitter takes one argument -- an rtf-stream to which it should emit paragraphs.
; Return the top-level rtf-stream.
(defun depict-rtf-top-level (title emitter)
(let* ((top-rtf-stream (make-top-level-rtf-stream *rtf-definitions*))
(rtf-stream (make-rtf-stream (markup-stream-env top-rtf-stream) *markup-stream-paragraph-level*))
(time (get-universal-time)))
(markup-stream-append1 rtf-stream ':rtf-intro)
(let ((info (generate-document-info title *rtf-author* *rtf-company* time)))
(when info
(markup-stream-append1 rtf-stream info)))
(markup-stream-append1 rtf-stream ':docfmt)
(markup-stream-append1 rtf-stream ':reset-section)
(markup-stream-append1 rtf-stream (generate-header-group title time))
(markup-stream-append1 rtf-stream ':footer-group)
(funcall emitter rtf-stream)
(markup-stream-append1 top-rtf-stream (markup-stream-unexpanded-output rtf-stream))
top-rtf-stream))
; Create a top-level rtf-stream and call emitter to emit its contents.
; emitter takes one argument -- an rtf-stream to which it should emit paragraphs.
; Write the resulting RTF to the text file with the given name (relative to the
; local directory).
(defun depict-rtf-to-local-file (filename title emitter)
(let ((top-rtf-stream (depict-rtf-top-level title emitter)))
(write-rtf-to-local-file filename (markup-stream-output top-rtf-stream)))
filename)
; Return the markup accumulated in the markup-stream after expanding all of its macros.
; The markup-stream is closed after this function is called.
(defmethod markup-stream-output ((rtf-stream rtf-stream))
(markup-env-expand (markup-stream-env rtf-stream) (markup-stream-unexpanded-output rtf-stream) nil))
(defmethod depict-block-style-f ((rtf-stream rtf-stream) block-style emitter)
(declare (ignore block-style))
(assert-true (= (markup-stream-level rtf-stream) *markup-stream-paragraph-level*))
(funcall emitter rtf-stream))
(defmethod depict-paragraph-f ((rtf-stream rtf-stream) paragraph-style emitter)
(assert-true (= (markup-stream-level rtf-stream) *markup-stream-paragraph-level*))
(assert-true (and paragraph-style (symbolp paragraph-style)))
(unless (eq paragraph-style (rtf-stream-style rtf-stream))
(markup-stream-append1 rtf-stream ':reset-paragraph)
(markup-stream-append1 rtf-stream paragraph-style))
(setf (rtf-stream-style rtf-stream) nil)
(setf (markup-stream-level rtf-stream) *markup-stream-content-level*)
(setf (markup-stream-logical-position rtf-stream) (make-logical-position))
(prog1
(funcall emitter rtf-stream)
(setf (markup-stream-level rtf-stream) *markup-stream-paragraph-level*)
(setf (rtf-stream-style rtf-stream) paragraph-style)
(setf (markup-stream-logical-position rtf-stream) nil)
(markup-stream-append1 rtf-stream ':new-paragraph)))
(defmethod depict-char-style-f ((rtf-stream rtf-stream) char-style emitter)
(assert-true (>= (markup-stream-level rtf-stream) *markup-stream-content-level*))
(assert-true (and char-style (symbolp char-style)))
(let ((inner-rtf-stream (make-rtf-stream (markup-stream-env rtf-stream) *markup-stream-content-level* (markup-stream-logical-position rtf-stream))))
(markup-stream-append1 inner-rtf-stream char-style)
(prog1
(funcall emitter inner-rtf-stream)
(rtf-stream-append-or-inline-block rtf-stream (markup-stream-unexpanded-output inner-rtf-stream)))))
(defmethod depict-anchor ((rtf-stream rtf-stream) link-prefix link-name duplicate)
(declare (ignore link-prefix link-name duplicate))
(assert-true (= (markup-stream-level rtf-stream) *markup-stream-content-level*)))
(defmethod depict-link-reference-f ((rtf-stream rtf-stream) link-prefix link-name external emitter)
(declare (ignore link-prefix link-name external))
(assert-true (= (markup-stream-level rtf-stream) *markup-stream-content-level*))
(funcall emitter rtf-stream))
#|
(setq r (read-rtf-from-local-file "SampleStyles.rtf"))
(write-rtf-to-local-file "Y.rtf" r)
|#
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