code.delx.au - gnu-emacs/blob - lisp/calendar/cal-tex.el

   1 ;;; cal-tex.el --- calendar functions for printing calendars with LaTeX.
   2
   3 ;; Copyright (C) 1995 Free Software Foundation, Inc.
   4
   5 ;; Author: Steve Fisk <fisk@bowdoin.edu>
   6 ;;      Edward M. Reingold <reingold@cs.uiuc.edu>
   7 ;; Keywords: calendar
   8 ;; Human-Keywords: Calendar, LaTeX
   9
  10 ;; This file is part of GNU Emacs.
  11
  12 ;; GNU Emacs is free software; you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation; either version 2, or (at your option)
  15 ;; any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  25 ;; Boston, MA 02111-1307, USA.
  26
  27 ;;; Commentary:
  28
  29 ;; This collection of functions implements the creation of LaTeX calendars
  30 ;; based on the user's holiday choices and diary file.
  31
  32 ;; TO DO
  33 ;;
  34 ;;     (*)  Add holidays and diary entries to daily calendar.
  35 ;;
  36 ;;     (*)  Add diary entries to weekly calendar functions.
  37 ;;
  38 ;;     (*)  Make calendar styles for A4 paper.
  39 ;;
  40 ;;     (*)  Make daily and monthly styles Filofax paper.
  41 ;;
  42 ;;     (*)  Improve the LaTeX command that produces the boxes in the monthly
  43 ;;          calendar to eliminate slight gap--what causes it?!
  44
  45 ;;; Code:
  46
  47 (require 'calendar)
  48
  49 (autoload 'list-diary-entries "diary-lib" nil t)
  50 (autoload 'calendar-holiday-list "holidays" nil t)
  51 (autoload 'calendar-iso-from-absolute "cal-iso" nil t)
  52
  53 ;;;
  54 ;;; Customizable variables
  55 ;;;
  56
  57 (defvar cal-tex-which-days '(0 1 2 3 4 5 6)
  58   "*The days of the week that are displayed on the portrait monthly calendar.
  59 Sunday is 0, Monday is 1, and so on.  The default is to print from Sunday to
  60 Saturday.  For example, use
  61
  62                     (setq cal-tex-which-days '(1 3 5))
  63
  64 to only print Monday, Wednesday, Friday.")
  65
  66 (defvar cal-tex-holidays t
  67   "*If t (default), then the holidays are also printed.
  68 If finding the holidays is too slow, set this to nil.")
  69
  70 (defvar cal-tex-diary nil
  71   "*If t, the diary entries are printed in the calendar.")
  72
  73 (defvar cal-tex-daily-string
  74   '(let* ((year (extract-calendar-year date))
  75           (day  (calendar-day-number date))
  76           (days-remaining (- (calendar-day-number (list 12 31 year)) day)))
  77      (format "%d/%d" day  days-remaining))
  78   "*An expression in the variable `date' whose value is placed on date.
  79 The string resulting from evaluating this expression is placed at the bottom
  80 center of `date' on the monthly calendar, next to the date in the weekly
  81 calendars, and in the top center of daily calendars.
  82
  83 Default is ordinal day number of the year and the number of days remaining.
  84 As an example of what you do, setting this to
  85
  86     '(progn
  87        (require 'cal-hebrew)
  88        (calendar-hebrew-date-string date))
  89
  90 will put the Hebrew date at the bottom of each day.")
  91
  92 (defvar cal-tex-buffer "calendar.tex"
  93   "*The name for the tex-ed calendar.")
  94
  95 (defvar cal-tex-24 nil
  96   "*If t, use a 24 hour clock in the daily calendar.")
  97
  98 (defvar cal-tex-daily-start 8
  99   "*The first hour of the daily calendar page.")
 100
 101 (defvar cal-tex-daily-end 20
 102   "*The last hour of the daily calendar page.")
 103
 104 ;;;
 105 ;;; Definitions for LaTeX code
 106 ;;;
 107
 108 (defvar  cal-tex-day-prefix "\\caldate{%s}{%s}"
 109   "The initial LaTeX code for a day.
 110 The holidays, diary entries, bottom string, and the text follow.")
 111
 112 (defvar cal-tex-day-name-format "\\myday{%s}%%"
 113   "The format for LaTeX code for a day name.  The names are taken from
 114 calendar-day-name-array.")
 115
 116 (defvar cal-tex-cal-one-month
 117 "\\def\\calmonth#1#2%
 118 {\\begin{center}%
 119 \\Huge\\bf\\uppercase{#1} #2 \\\\[1cm]%
 120 \\end{center}}%
 121 \\vspace*{-1.5cm}%
 122 %
 123 "
 124   "LaTeX code for the month header")
 125
 126 (defvar cal-tex-cal-multi-month
 127 "\\def\\calmonth#1#2#3#4%
 128 {\\begin{center}%
 129 \\Huge\\bf #1 #2---#3 #4\\\\[1cm]%
 130 \\end{center}}%
 131 \\vspace*{-1.5cm}%
 132 %
 133 "
 134   "LaTeX code for the month header")
 135
 136 (defvar cal-tex-myday
 137 "\\renewcommand{\\myday}[1]%
 138 {\\makebox[\\cellwidth]{\\hfill\\large\\bf#1\\hfill}}
 139 %
 140 "
 141   "LaTeX code for a day heading")
 142
 143 (defvar cal-tex-caldate
 144 "\\fboxsep=0pt
 145 \\long\\def\\caldate#1#2#3#4#5#6{%
 146     \\fbox{\\hbox to\\cellwidth{%
 147      \\vbox to\\cellheight{%
 148        \\hbox to\\cellwidth{%
 149           {\\hspace*{1mm}\\Large \\bf \\strut #2}\\hspace{.05\\cellwidth}%
 150           \\raisebox{\\holidaymult\\cellheight}%
 151                    {\\parbox[t]{.75\\cellwidth}{\\tiny \\raggedright #4}}}
 152        \\hbox to\\cellwidth{%
 153            \\hspace*{1mm}\\parbox{.95\\cellwidth}{\\tiny \\raggedright #3}}
 154        \\hspace*{1mm}%
 155        \\hbox to\\cellwidth{#6}%
 156        \\vfill%
 157        \\hbox to\\cellwidth{\\hfill \\tiny #5 \\hfill}%
 158        \\vskip 1.4pt}%
 159      \\hskip -0.4pt}}}
 160 "
 161   "LaTeX code to insert one box with date info in calendar.
 162 This definition is the heart of the calendar!")
 163
 164 (defun cal-tex-list-holidays (d1 d2)
 165   "Generate a list of all holidays from absolute date D1 to D2."
 166   (let* ((result nil)
 167          (start (calendar-gregorian-from-absolute d1))
 168          (start-month (extract-calendar-month start))
 169          (start-year (extract-calendar-year start)))
 170     (increment-calendar-month start-month start-year 1)
 171     (let* ((end (calendar-gregorian-from-absolute d2))
 172            (end-month (extract-calendar-month end))
 173            (end-year (extract-calendar-year end)))
 174       (if (= (extract-calendar-day end) 1)
 175           (increment-calendar-month end-month end-year -1))
 176       (let* ((s (calendar-absolute-from-gregorian
 177                  (list start-month 1 start-year)))
 178              (e (calendar-absolute-from-gregorian
 179                  (list end-month 1 end-year)))
 180              (d s)
 181              (never t)
 182              (displayed-month start-month)
 183              (displayed-year start-year))
 184         (while (or never (<= d e))
 185           (setq result (append result (calendar-holiday-list)))
 186           (setq never nil)
 187           (increment-calendar-month displayed-month displayed-year 3)
 188           (setq d (calendar-absolute-from-gregorian
 189                    (list displayed-month 1 displayed-year))))))
 190     (let ((in-range)
 191           (p result))
 192       (while p
 193         (and (car (car p))
 194              (let ((a (calendar-absolute-from-gregorian (car (car p)))))
 195                (and (<= d1 a) (<= a d2)))
 196              (setq in-range (append (list (car p)) in-range)))
 197         (setq p (cdr p)))
 198       in-range)))
 199
 200 (defun cal-tex-list-diary-entries (d1 d2)
 201   "Generate a list of all diary-entries from absolute date D1 to D2."
 202   (let ((diary-display-hook nil))
 203     (list-diary-entries
 204      (calendar-gregorian-from-absolute d1)
 205      (1+ (- d2 d1)))))
 206
 207 (defun cal-tex-preamble (&optional args)
 208   "Insert the LaTeX preamble.
 209 Preamble Includes initial definitions for various LaTeX commands.
 210 Optional ARGS are included."
 211   (set-buffer (get-buffer-create cal-tex-buffer))
 212   (erase-buffer)
 213   (insert "\\documentstyle")
 214   (if args
 215       (insert "[" args "]"))
 216   (insert "{article}\n"
 217           "\\hbadness 20000
 218 \\hfuzz=1000pt
 219 \\vbadness 20000
 220 \\marginparwidth 0pt
 221 \\oddsidemargin  -2cm
 222 \\evensidemargin -2cm
 223 \\marginparsep   0pt
 224 \\topmargin      0pt
 225 \\textwidth      7.5in
 226 \\textheight     9.5in
 227 \\newlength{\\cellwidth}
 228 \\newlength{\\cellheight}
 229 \\newlength{\\boxwidth}
 230 \\newlength{\\boxheight}
 231 \\newlength{\\cellsize}
 232 \\newcommand{\\myday}[1]{}
 233 \\newcommand{\\caldate}[6]{}
 234 \\newcommand{\\nocaldate}[6]{}
 235 \\newcommand{\\calsmall}[6]{}
 236 %
 237 "))
 238
 239 ;;;
 240 ;;;  Yearly calendars
 241 ;;;
 242
 243 (defun cal-tex-cursor-year (&optional arg)
 244   "Make a buffer with LaTeX commands for the year cursor is on.
 245 Optional prefix argument specifies number of years."
 246   (interactive "P")
 247   (cal-tex-year (extract-calendar-year (calendar-cursor-to-date t))
 248                 (if arg arg 1)))
 249
 250 (defun cal-tex-cursor-year-landscape (&optional arg)
 251   "Make a buffer with LaTeX commands for the year cursor is on.
 252 Optional prefix argument specifies number of years."
 253   (interactive "P")
 254   (cal-tex-year (extract-calendar-year (calendar-cursor-to-date t))
 255                 (if arg arg 1)
 256                 t))
 257
 258 (defun cal-tex-year (year n &optional landscape)
 259   "Make a one page yearly calendar of YEAR; do this for N years.
 260 There are four rows of three months each, unless optional LANDSCAPE is t,
 261 in which case the calendar isprinted in landscape mode with three rows of
 262 four months each."
 263   (cal-tex-insert-preamble 1 landscape "12pt")
 264   (if landscape
 265       (cal-tex-vspace "-.6cm")
 266     (cal-tex-vspace "-3.1cm"))
 267   (calendar-for-loop j from 1 to n do
 268      (insert "\\vfill%\n")
 269      (cal-tex-b-center)
 270      (cal-tex-Huge (number-to-string year))
 271      (cal-tex-e-center)
 272      (cal-tex-vspace "1cm")
 273      (cal-tex-b-center)
 274      (cal-tex-b-parbox "l" (if landscape "5.9in" "4.3in"))
 275      (insert "\n")
 276      (cal-tex-noindent)
 277      (cal-tex-nl)
 278      (calendar-for-loop i from 1 to 12 do
 279         (insert (cal-tex-mini-calendar i year "month" "1.1in" "1in"))
 280         (insert "\\month")
 281         (cal-tex-hspace "0.5in")
 282         (if (zerop (mod i (if landscape 4 3)))
 283             (cal-tex-nl "0.5in")))
 284      (cal-tex-e-parbox)
 285      (cal-tex-e-center)
 286      (insert "\\vfill%\n")
 287      (setq year (1+ year))
 288      (if (/= j n)
 289          (cal-tex-newpage)
 290        (cal-tex-end-document))
 291      (run-hooks 'cal-tex-year-hook))
 292   (run-hooks 'cal-tex-hook))
 293
 294 (defun cal-tex-cursor-filofax-year (&optional arg)
 295   "Make a Filofax one page yearly calendar of year indicated by cursor.
 296 Optional parameter specifies number of years."
 297   (interactive "P")
 298   (let* ((n (if arg arg 1))
 299          (year (extract-calendar-year (calendar-cursor-to-date t))))
 300     (cal-tex-preamble "twoside")
 301     (cal-tex-cmd "\\textwidth 3.25in")
 302     (cal-tex-cmd "\\textheight 6.5in")
 303     (cal-tex-cmd "\\oddsidemargin 1.6in")
 304     (cal-tex-cmd "\\evensidemargin 1.55in")
 305     (cal-tex-cmd "\\topmargin 0pt")
 306     (cal-tex-cmd "\\headheight -0.875in")
 307     (cal-tex-cmd "\\pagestyle{empty}")
 308     (cal-tex-b-document)
 309     (calendar-for-loop j from 1 to n do
 310        (insert (format "\\hfil {\\Large \\bf %s} \\hfil\\\\\n" year))
 311        (cal-tex-b-center)
 312        (cal-tex-b-parbox "l" "\\textwidth")
 313        (insert "\n")
 314        (cal-tex-noindent)
 315        (cal-tex-nl)
 316        (calendar-for-loop i from 1 to 12 do
 317           (insert (cal-tex-mini-calendar i year
 318                                          (calendar-month-name i)
 319                                          "1.05in" ".8in" "tiny")))
 320        (insert
 321 "\\noindent\\fbox{\\January}\\fbox{\\February}\\fbox{\\March}\\\\
 322 \\noindent\\fbox{\\April}\\fbox{\\May}\\fbox{\\June}\\\\
 323 \\noindent\\fbox{\\July}\\fbox{\\August}\\fbox{\\September}\\\\
 324 \\noindent\\fbox{\\October}\\fbox{\\November}\\fbox{\\December}
 325 ")
 326        (cal-tex-e-parbox)
 327        (cal-tex-e-center)
 328        (setq year (1+ year))
 329        (if (/= j n)
 330            (cal-tex-newpage)
 331          (cal-tex-end-document))
 332        (run-hooks 'cal-tex-year-hook))
 333     (run-hooks 'cal-tex-hook)))
 334
 335 ;;;
 336 ;;;  Monthly calendars
 337 ;;;
 338
 339 (defun cal-tex-cursor-month-landscape (&optional arg)
 340   "Make a buffer with LaTeX commands for the month cursor is on.
 341 Optional prefix argument specifies number of months to be produced.
 342 The output is in landscape format, one month to a page."
 343   (interactive "P")
 344   (let* ((n (if arg arg 1))
 345          (date (calendar-cursor-to-date t))
 346          (month (extract-calendar-month date))
 347          (year (extract-calendar-year date))
 348          (end-month month)
 349          (end-year year)
 350          (cal-tex-which-days '(0 1 2 3 4 5 6)))
 351     (increment-calendar-month end-month end-year (1- n))
 352     (let ((diary-list (if cal-tex-diary
 353                           (cal-tex-list-diary-entries
 354                            (calendar-absolute-from-gregorian
 355                             (list month 1 year))
 356                            (calendar-absolute-from-gregorian
 357                             (list end-month
 358                                   (calendar-last-day-of-month
 359                                    end-month end-year)
 360                                   end-year)))))
 361           (holidays (if cal-tex-holidays
 362                         (cal-tex-list-holidays
 363                          (calendar-absolute-from-gregorian
 364                           (list month 1 year))
 365                          (calendar-absolute-from-gregorian
 366                           (list end-month
 367                                 (calendar-last-day-of-month end-month end-year)
 368                                 end-year)))))
 369           (other-month)
 370           (other-year)
 371           (small-months-at-start))
 372       (cal-tex-insert-preamble (cal-tex-number-weeks month year 1) t "12pt")
 373       (cal-tex-cmd cal-tex-cal-one-month)
 374       (calendar-for-loop i from 1 to n do
 375          (setq other-month month)
 376          (setq other-year year)
 377          (increment-calendar-month other-month other-year -1)
 378          (insert (cal-tex-mini-calendar other-month other-year "lastmonth"
 379                                         "\\cellwidth" "\\cellheight"))
 380          (increment-calendar-month other-month other-year 2)
 381          (insert (cal-tex-mini-calendar other-month other-year "nextmonth"
 382                                         "\\cellwidth" "\\cellheight"))
 383          (cal-tex-insert-month-header 1 month year month year)
 384          (cal-tex-insert-day-names)
 385          (cal-tex-nl ".2cm")
 386          (setq small-months-at-start
 387                (< 1 (mod (- (calendar-day-of-week (list month 1 year))
 388                             calendar-week-start-day)
 389                          7)))
 390          (if small-months-at-start
 391              (insert "\\lastmonth\\nextmonth\\hspace*{-2\\cellwidth}"))
 392          (cal-tex-insert-blank-days month year cal-tex-day-prefix)
 393          (cal-tex-insert-days month year diary-list holidays
 394                               cal-tex-day-prefix)
 395          (cal-tex-insert-blank-days-at-end month year cal-tex-day-prefix)
 396          (if (and (not small-months-at-start)
 397                   (< 1 (mod (- (1- calendar-week-start-day)
 398                                (calendar-day-of-week
 399                                 (list month
 400                                       (calendar-last-day-of-month month year)
 401                                       year)))
 402                                  7)))
 403              (insert "\\vspace*{-\\cellwidth}\\hspace*{-2\\cellwidth}"
 404                      "\\lastmonth\\nextmonth"))
 405          (if (/= i n)
 406              (progn
 407                (run-hooks 'cal-tex-month-hook)
 408                (cal-tex-newpage)
 409                (increment-calendar-month month year 1)
 410                (cal-tex-vspace "-2cm")
 411                (cal-tex-insert-preamble
 412                 (cal-tex-number-weeks month year 1) t "12pt" t))))
 413       (cal-tex-end-document)
 414       (run-hooks 'cal-tex-hook))))
 415
 416 (defun cal-tex-cursor-month (arg)
 417   "Make a buffer with LaTeX commands for the month cursor is on.
 418 Optional prefix argument specifies number of months to be produced.
 419 Calendar is condensed onto one page."
 420   (interactive "P")
 421   (let* ((date (calendar-cursor-to-date t))
 422          (month (extract-calendar-month date))
 423          (year (extract-calendar-year date))
 424          (end-month month)
 425          (end-year year)
 426          (n (if arg arg 1)))
 427     (increment-calendar-month end-month end-year (1- n))
 428     (let ((diary-list (if cal-tex-diary
 429                           (cal-tex-list-diary-entries
 430                            (calendar-absolute-from-gregorian
 431                             (list month 1 year))
 432                            (calendar-absolute-from-gregorian
 433                             (list end-month
 434                                   (calendar-last-day-of-month
 435                                    end-month end-year)
 436                                   end-year)))))
 437           (holidays (if cal-tex-holidays
 438                         (cal-tex-list-holidays
 439                          (calendar-absolute-from-gregorian
 440                           (list month 1 year))
 441                          (calendar-absolute-from-gregorian
 442                           (list end-month
 443                                 (calendar-last-day-of-month end-month end-year)
 444                                 end-year)))))
 445           (other-month)
 446           (other-year))
 447       (cal-tex-insert-preamble (cal-tex-number-weeks month year n) nil"12pt")
 448       (if (> n 1)
 449           (cal-tex-cmd cal-tex-cal-multi-month)
 450         (cal-tex-cmd cal-tex-cal-one-month))
 451       (cal-tex-insert-month-header n month year end-month end-year)
 452       (cal-tex-insert-day-names)
 453       (cal-tex-nl ".2cm")
 454       (cal-tex-insert-blank-days month year cal-tex-day-prefix)
 455       (calendar-for-loop i from 1 to n do
 456          (setq other-month month)
 457          (setq other-year year)
 458          (cal-tex-insert-days month year diary-list holidays
 459                               cal-tex-day-prefix)
 460          (increment-calendar-month month year 1))
 461       (cal-tex-insert-blank-days-at-end end-month end-year cal-tex-day-prefix)
 462       (cal-tex-end-document)))
 463   (run-hooks 'cal-tex-hook))
 464
 465 (defun cal-tex-insert-days (month year diary-list holidays day-format)
 466   "Insert LaTeX commands for a range of days in monthly calendars.
 467 LaTeX commands are inserted for the days of the MONTH in YEAR.
 468 Diary entries on DIARY-LIST are included. Holidays on HOLIDAYS are included.
 469 Each day is formatted using format DAY-FORMAT."
 470   (let* ((blank-days;; at start of month
 471           (mod
 472            (- (calendar-day-of-week (list month 1 year))
 473               calendar-week-start-day)
 474            7))
 475          (date)
 476          (last (calendar-last-day-of-month month year)))
 477     (calendar-for-loop i from 1 to last do
 478        (setq date (list month i year))
 479        (if (memq (calendar-day-of-week date) cal-tex-which-days)
 480            (progn
 481              (insert (format day-format (calendar-month-name month) i))
 482              (cal-tex-arg (cal-tex-latexify-list diary-list date))
 483              (cal-tex-arg (cal-tex-latexify-list holidays date))
 484              (cal-tex-arg (eval cal-tex-daily-string))
 485              (cal-tex-arg)
 486              (cal-tex-comment)))
 487        (if (and (zerop (mod (+ i blank-days) 7))
 488                 (/= i last))
 489            (progn
 490              (cal-tex-hfill)
 491              (cal-tex-nl))))))
 492
 493 (defun cal-tex-insert-day-names ()
 494   "Insert the names of the days at top of a monthly calendar."
 495   (calendar-for-loop i from 0 to 6 do
 496      (if (memq i cal-tex-which-days)
 497          (insert (format cal-tex-day-name-format
 498                          (aref calendar-day-name-array
 499                                (mod (+ calendar-week-start-day i) 7)))))
 500      (cal-tex-comment)))
 501
 502 (defun cal-tex-insert-month-header (n month year end-month end-year)
 503   "Create a title for a calendar.
 504 A title is inserted for a calendar with N months starting with
 505 MONTH YEAR and ending with END-MONTH END-YEAR."
 506   (let ( (month-name (calendar-month-name  month))
 507          (end-month-name (calendar-month-name  end-month)))
 508     (if (= 1 n)
 509         (insert (format "\\calmonth{%s}{%s}\n\\vspace*{-0.5cm}"
 510                 month-name year) )
 511         (insert (format "\\calmonth{%s}{%s}{%s}{%s}\n\\vspace*{-0.5cm}"
 512                 month-name year end-month-name end-year))))
 513   (cal-tex-comment))
 514
 515 (defun cal-tex-insert-blank-days (month year day-format)
 516   "Insert code for initial days not in calendar.
 517 Insert LaTeX code for the blank days at the beginning of the MONTH in
 518 YEAR.  The entry is formatted using DAY-FORMAT.  If the entire week is
 519 blank, no days are inserted."
 520   (if (cal-tex-first-blank-p month year)
 521       (let* ((blank-days;; at start of month
 522               (mod
 523                (- (calendar-day-of-week (list month 1 year))
 524                   calendar-week-start-day)
 525                7)))
 526         (calendar-for-loop i from 0 to (1- blank-days) do
 527             (if (memq i cal-tex-which-days)
 528                 (insert (format day-format " " " ") "{}{}{}{}%\n"))))))
 529
 530 (defun cal-tex-insert-blank-days-at-end (month year day-format)
 531   "Insert code for final days not in calendar.
 532 Insert LaTeX code for the blank days at the end of the MONTH in YEAR.
 533 The entry is formatted using DAY-FORMAT."
 534   (if (cal-tex-last-blank-p month year)
 535       (let* ((last-day (calendar-last-day-of-month month year))
 536              (blank-days;; at end of month
 537               (mod
 538                (- (calendar-day-of-week (list month last-day year))
 539                   calendar-week-start-day)
 540                7)))
 541         (calendar-for-loop i from (1+ blank-days) to 6 do
 542            (if (memq i cal-tex-which-days)
 543                (insert (format day-format "" "") "{}{}{}{}%\n"))))))
 544
 545 (defun cal-tex-first-blank-p (month year)
 546   "Determine if any days of the first week will be printed.
 547 Return t if there will there be any days of the first week printed
 548 in the calendar starting in MONTH YEAR."
 549   (let ((any-days nil)
 550         (the-saturday))                 ;the day of week of 1st Saturday
 551     (calendar-for-loop i from 1 to 7 do
 552        (if (= 6 (calendar-day-of-week (list month i year)))
 553            (setq the-saturday i)))
 554     (calendar-for-loop i from 1 to the-saturday do
 555        (if (memq (calendar-day-of-week (list month i year))
 556                  cal-tex-which-days)
 557            (setq any-days t)))
 558     any-days))
 559
 560 (defun cal-tex-last-blank-p (month year)
 561   "Determine if any days of the last week will be printed.
 562 Return t if there will there be any days of the last week printed
 563 in the calendar starting in MONTH YEAR."
 564   (let ((any-days nil)
 565         (last-day (calendar-last-day-of-month month year))
 566         (the-sunday))                   ;the day of week of last Sunday
 567     (calendar-for-loop i from (- last-day 6) to last-day do
 568        (if (= 0 (calendar-day-of-week (list month i year)))
 569            (setq the-sunday i)))
 570     (calendar-for-loop i from the-sunday to last-day do
 571        (if (memq (calendar-day-of-week (list month i year))
 572                  cal-tex-which-days)
 573            (setq any-days t)))
 574     any-days))
 575
 576 (defun cal-tex-number-weeks (month year n)
 577   "Determine the number of weeks in a range of dates.
 578 Compute the number of  weeks in the calendar starting with MONTH and YEAR,
 579 and lasting N months, including only the days in WHICH-DAYS. As it stands,
 580 this is only an upper bound."
 581   (let ((d (list month 1 year)))
 582     (increment-calendar-month month year (1- n))
 583     (/ (- (calendar-dayname-on-or-before
 584            calendar-week-start-day
 585            (+ 7 (calendar-absolute-from-gregorian
 586                    (list month (calendar-last-day-of-month month year) year))))
 587           (calendar-dayname-on-or-before
 588            calendar-week-start-day
 589            (calendar-absolute-from-gregorian d)))
 590        7)))
 591
 592 ;;;
 593 ;;; Weekly calendars
 594 ;;;
 595
 596 (defun cal-tex-cursor-week (&optional arg)
 597   "Make a buffer with LaTeX commands for a two-page one-week calendar.
 598 It applies to the week that point is in.
 599 Optional prefix argument specifies number of weeks.
 600 Holidays are included if `cal-tex-holidays' is t."
 601   (interactive "P")
 602   (let* ((n (if arg arg 1))
 603          (date (calendar-gregorian-from-absolute
 604                 (calendar-dayname-on-or-before
 605                  calendar-week-start-day
 606                  (calendar-absolute-from-gregorian
 607                   (calendar-cursor-to-date t)))))
 608          (month (extract-calendar-month date))
 609          (year (extract-calendar-year date))
 610          (holidays (if cal-tex-holidays
 611                        (cal-tex-list-holidays
 612                         (calendar-absolute-from-gregorian date)
 613                         (+ (* 7 n)
 614                            (calendar-absolute-from-gregorian date))))))
 615     (cal-tex-preamble "11pt")
 616     (cal-tex-cmd "\\textwidth   6.5in")
 617     (cal-tex-cmd "\\textheight 10.5in")
 618     (cal-tex-cmd "\\oddsidemargin 0in")
 619     (cal-tex-cmd "\\evensidemargin 0in")
 620     (insert cal-tex-LaTeX-hourbox)
 621     (cal-tex-b-document)
 622     (cal-tex-cmd "\\pagestyle{empty}")
 623     (calendar-for-loop i from 1 to n do
 624        (cal-tex-vspace "-1.5in")
 625        (cal-tex-b-center)
 626        (cal-tex-Huge-bf (format "\\uppercase{%s}"
 627                                 (calendar-month-name month)))
 628        (cal-tex-hspace "2em")
 629        (cal-tex-Huge-bf (number-to-string year))
 630        (cal-tex-nl ".5cm")
 631        (cal-tex-e-center)
 632        (cal-tex-hspace "-.2in")
 633        (cal-tex-b-parbox "l" "7in")
 634        (calendar-for-loop j from 1 to 7 do
 635           (cal-tex-week-hours date holidays "3.1")
 636           (setq date (cal-tex-incr-date date)))
 637        (cal-tex-e-parbox)
 638        (setq month (extract-calendar-month date))
 639        (setq year (extract-calendar-year date))
 640        (if (/= i n)
 641            (progn
 642              (run-hooks 'cal-tex-week-hook)
 643              (cal-tex-newpage))))
 644     (cal-tex-end-document)
 645     (run-hooks 'cal-tex-hook)))
 646
 647 (defun cal-tex-cursor-week2 (&optional arg)
 648   "Make a buffer with LaTeX commands for a two-page one-week calendar.
 649 It applies to the week that point is in.
 650 Optional prefix argument specifies number of weeks.
 651 Holidays are included if `cal-tex-holidays' is t."
 652   (interactive "P")
 653   (let* ((n (if arg arg 1))
 654          (date (calendar-gregorian-from-absolute
 655                 (calendar-dayname-on-or-before
 656                  calendar-week-start-day
 657                  (calendar-absolute-from-gregorian
 658                   (calendar-cursor-to-date t)))))
 659          (month (extract-calendar-month date))
 660          (year (extract-calendar-year date))
 661          (d date)
 662          (holidays (if cal-tex-holidays
 663                        (cal-tex-list-holidays
 664                         (calendar-absolute-from-gregorian date)
 665                         (+ (* 7 n)
 666                            (calendar-absolute-from-gregorian date))))))
 667     (cal-tex-preamble "12pt")
 668     (cal-tex-cmd "\\textwidth   6.5in")
 669     (cal-tex-cmd "\\textheight 10.5in")
 670     (cal-tex-cmd "\\oddsidemargin 0in")
 671     (cal-tex-cmd "\\evensidemargin 0in")
 672     (insert cal-tex-LaTeX-hourbox)
 673     (cal-tex-b-document)
 674     (cal-tex-cmd "\\pagestyle{empty}")
 675     (calendar-for-loop i from 1 to n do
 676        (cal-tex-vspace "-1.5in")
 677        (cal-tex-b-center)
 678        (cal-tex-Huge-bf (format "\\uppercase{%s}"
 679                                 (calendar-month-name month)))
 680        (cal-tex-hspace "2em")
 681        (cal-tex-Huge-bf (number-to-string year))
 682        (cal-tex-nl ".5cm")
 683        (cal-tex-e-center)
 684        (cal-tex-hspace "-.2in")
 685        (cal-tex-b-parbox "l" "\\textwidth")
 686        (calendar-for-loop j from 1 to 3 do
 687           (cal-tex-week-hours date holidays "5")
 688           (setq date (cal-tex-incr-date date)))
 689        (cal-tex-e-parbox)
 690        (cal-tex-nl)
 691        (insert (cal-tex-mini-calendar
 692                 (extract-calendar-month (cal-tex-previous-month date))
 693                 (extract-calendar-year (cal-tex-previous-month date))
 694                 "lastmonth" "1.1in" "1in"))
 695        (insert (cal-tex-mini-calendar
 696                 (extract-calendar-month date)
 697                 (extract-calendar-year date)
 698                 "thismonth" "1.1in" "1in"))
 699        (insert (cal-tex-mini-calendar
 700                 (extract-calendar-month (cal-tex-next-month date))
 701                 (extract-calendar-year (cal-tex-next-month date))
 702                 "nextmonth" "1.1in" "1in"))
 703        (insert "\\hbox to \\textwidth{")
 704        (cal-tex-hfill)
 705        (insert "\\lastmonth")
 706        (cal-tex-hfill)
 707        (insert "\\thismonth")
 708        (cal-tex-hfill)
 709        (insert "\\nextmonth")
 710        (cal-tex-hfill)
 711        (insert "}")
 712        (cal-tex-nl)
 713        (cal-tex-b-parbox "l" "\\textwidth")
 714        (calendar-for-loop j from 4 to 7 do
 715                           (cal-tex-week-hours date holidays "5")
 716                           (setq date (cal-tex-incr-date date)))
 717        (cal-tex-e-parbox)
 718        (setq month (extract-calendar-month date))
 719        (setq year (extract-calendar-year date))
 720        (if (/= i n)
 721            (progn
 722              (run-hooks 'cal-tex-week-hook)
 723              (cal-tex-newpage))))
 724     (cal-tex-end-document)
 725     (run-hooks 'cal-tex-hook)))
 726
 727 (defun cal-tex-cursor-week-iso (&optional arg)
 728   "Make a buffer with LaTeX commands for a one page ISO-style weekly calendar.
 729 Optional prefix argument specifies number of weeks.
 730 Diary entries are included if `cal-tex-diary' is t.
 731 Holidays are included if `cal-tex-holidays' is t."
 732   (interactive "P")
 733   (let* ((n (if arg arg 1))
 734          (date (calendar-gregorian-from-absolute
 735                 (calendar-dayname-on-or-before
 736                  1
 737                  (calendar-absolute-from-gregorian
 738                   (calendar-cursor-to-date t)))))
 739          (month (extract-calendar-month date))
 740          (year (extract-calendar-year date))
 741          (day (extract-calendar-day date))
 742          (holidays (if cal-tex-holidays
 743                        (cal-tex-list-holidays
 744                         (calendar-absolute-from-gregorian date)
 745                         (+ (* 7 n)
 746                            (calendar-absolute-from-gregorian date)))))
 747          (diary-list (if cal-tex-diary
 748                          (cal-tex-list-diary-entries
 749                           (calendar-absolute-from-gregorian
 750                            (list month 1 year))
 751                         (+ (* 7 n)
 752                            (calendar-absolute-from-gregorian date))))))
 753     (cal-tex-preamble "11pt")
 754     (cal-tex-cmd "\\textwidth 6.5in")
 755     (cal-tex-cmd "\\textheight 10.5in")
 756     (cal-tex-cmd "\\oddsidemargin 0in")
 757     (cal-tex-cmd "\\evensidemargin 0in")
 758     (cal-tex-b-document)
 759     (cal-tex-cmd "\\pagestyle{empty}")
 760     (calendar-for-loop i from 1 to n do
 761        (cal-tex-vspace "-1.5in")
 762        (cal-tex-b-center)
 763        (cal-tex-Huge-bf
 764         (let* ((d (calendar-iso-from-absolute
 765                    (calendar-absolute-from-gregorian date))))
 766           (format "Week %d of %d"
 767                   (extract-calendar-month d)
 768                   (extract-calendar-year d))))
 769        (cal-tex-nl ".5cm")
 770        (cal-tex-e-center)
 771        (cal-tex-b-parbox "l" "\\textwidth")
 772        (calendar-for-loop j from 1 to 7 do
 773           (cal-tex-b-parbox "t" "\\textwidth")
 774           (cal-tex-b-parbox "t" "\\textwidth")
 775           (cal-tex-rule "0pt" "\\textwidth" ".2mm")
 776           (cal-tex-nl)
 777           (cal-tex-b-parbox "t" "\\textwidth")
 778           (cal-tex-large-bf (calendar-day-name date))
 779           (insert ", ")
 780           (cal-tex-large-bf (calendar-month-name month))
 781           (insert " ")
 782           (cal-tex-large-bf (number-to-string day))
 783           (if (not (string= "" (cal-tex-latexify-list holidays date)))
 784               (progn
 785                 (insert ": ")
 786                 (cal-tex-large-bf (cal-tex-latexify-list holidays date "; "))))
 787           (cal-tex-hfill)
 788           (insert " " (eval cal-tex-daily-string))
 789           (cal-tex-e-parbox)
 790           (cal-tex-nl)
 791           (cal-tex-noindent)
 792           (cal-tex-b-parbox "t" "\\textwidth")
 793           (if (not (string= "" (cal-tex-latexify-list diary-list date)))
 794               (progn
 795                 (insert "\\vbox to 0pt{")
 796                 (cal-tex-large-bf
 797                  (cal-tex-latexify-list diary-list date))
 798                 (insert "}")))
 799           (cal-tex-e-parbox)
 800           (cal-tex-nl)
 801           (setq date (cal-tex-incr-date date))
 802           (setq month (extract-calendar-month date))
 803           (setq day (extract-calendar-day date))
 804           (cal-tex-e-parbox)
 805           (cal-tex-e-parbox "2cm")
 806           (cal-tex-nl)
 807           (setq month (extract-calendar-month date))
 808           (setq year (extract-calendar-year date)))
 809        (cal-tex-e-parbox)%
 810        (if (/= i n)
 811            (progn
 812              (run-hooks 'cal-tex-week-hook)
 813              (cal-tex-newpage))))
 814     (cal-tex-end-document)
 815     (run-hooks 'cal-tex-hook)))
 816
 817 (defvar cal-tex-LaTeX-hourbox
 818   "\\newcommand{\\hourbox}[2]%
 819 {\\makebox[2em]{\\rule{0cm}{#2ex}#1}\\rule{3in}{.15mm}}\n"
 820   "One hour and a line on the right.")
 821
 822 (defun cal-tex-week-hours (date holidays height)
 823   "Insert hourly entries for DATE with HOLIDAYS, with line height HEIGHT."
 824   (let ((month (extract-calendar-month date))
 825         (day   (extract-calendar-day date))
 826         (year  (extract-calendar-year date))
 827         (afternoon))
 828   (cal-tex-comment "begin cal-tex-week-hours")
 829   (cal-tex-cmd  "\\ \\\\[-.2cm]")
 830   (cal-tex-cmd "\\noindent")
 831   (cal-tex-b-parbox "l" "6.8in")
 832   (cal-tex-large-bf (calendar-day-name date))
 833   (insert ", ")
 834   (cal-tex-large-bf (calendar-month-name month))
 835   (insert " ")
 836   (cal-tex-large-bf (number-to-string day))
 837   (if (not (string= "" (cal-tex-latexify-list holidays date)))
 838       (progn
 839         (insert ": ")
 840         (cal-tex-large-bf (cal-tex-latexify-list holidays date "; "))))
 841   (cal-tex-hfill)
 842   (insert " " (eval cal-tex-daily-string))
 843   (cal-tex-e-parbox)
 844   (cal-tex-nl "-.3cm")
 845   (cal-tex-rule "0pt" "6.8in" ".2mm")
 846   (cal-tex-nl "-.1cm")
 847   (calendar-for-loop i from 8 to 12 do
 848      (if cal-tex-24
 849          (setq afternoon (+ i 5))
 850        (setq afternoon (- i 7)))
 851      (cal-tex-cmd "\\hourbox"  (number-to-string i))
 852      (cal-tex-arg height)
 853      (cal-tex-hspace ".4cm")
 854      (cal-tex-cmd "\\hourbox"  (number-to-string afternoon))
 855      (cal-tex-arg height)
 856      (cal-tex-nl))))
 857
 858 (defun cal-tex-cursor-week-monday (&optional arg)
 859   "Make a buffer with LaTeX commands for a two-page one-week calendar.
 860 It applies to the week that point is in, and starts on Monday.
 861 Optional prefix argument specifies number of weeks.
 862 Holidays are included if `cal-tex-holidays' is t."
 863   (interactive "P")
 864   (let* ((n (if arg arg 1))
 865          (date (calendar-gregorian-from-absolute
 866                 (calendar-dayname-on-or-before
 867                  0
 868                  (calendar-absolute-from-gregorian
 869                   (calendar-cursor-to-date t))))))
 870     (cal-tex-preamble "11pt")
 871     (cal-tex-cmd "\\textwidth   6.5in")
 872     (cal-tex-cmd "\\textheight 10.5in")
 873     (cal-tex-cmd "\\oddsidemargin 0in")
 874     (cal-tex-cmd "\\evensidemargin 0in")
 875     (cal-tex-b-document)
 876     (calendar-for-loop i from 1 to n do
 877        (cal-tex-vspace "-1cm")
 878        (insert "\\noindent ")
 879        (cal-tex-weekly4-box (cal-tex-incr-date date) nil)
 880        (cal-tex-weekly4-box (cal-tex-incr-date date 4) nil)
 881        (cal-tex-nl ".2cm")
 882        (cal-tex-weekly4-box (cal-tex-incr-date date 2) nil)
 883        (cal-tex-weekly4-box (cal-tex-incr-date date 5) nil)
 884        (cal-tex-nl ".2cm")
 885        (cal-tex-weekly4-box (cal-tex-incr-date date 3) nil)
 886        (cal-tex-weekly4-box (cal-tex-incr-date date 6) t)
 887        (if (/= i n)
 888            (progn
 889              (run-hooks 'cal-tex-week-hook)
 890              (setq date (cal-tex-incr-date date 7))
 891              (cal-tex-newpage))))
 892     (cal-tex-end-document)
 893     (run-hooks 'cal-tex-hook)))
 894
 895 (defun cal-tex-weekly4-box (date weekend)
 896   "Make one box for DATE, different if WEEKEND."
 897   (let* (
 898         (day (extract-calendar-day date))
 899         (month (extract-calendar-month date))
 900         (year (extract-calendar-year date))
 901         (dayname (calendar-day-name date))
 902         (date1 (cal-tex-incr-date date))
 903         (day1 (extract-calendar-day date1))
 904         (month1 (extract-calendar-month date1))
 905         (year1 (extract-calendar-year date1))
 906         (dayname1 (calendar-day-name date1))
 907         )
 908     (cal-tex-b-framebox "8cm" "l")
 909     (cal-tex-b-parbox "b" "7.5cm")
 910     (insert (format "{\\Large\\bf %s,} %s/%s/%s\\\\\n" dayname month day year))
 911     (cal-tex-rule "0pt" "7.5cm" ".5mm")
 912     (cal-tex-nl)
 913     (if (not weekend)
 914         (progn
 915           (calendar-for-loop i from 8 to 12 do
 916              (insert (format "{\\large\\sf %d}\\\\\n" i)))
 917           (calendar-for-loop i from 1 to 5 do
 918              (insert (format "{\\large\\sf %d}\\\\\n" i)))))
 919     (cal-tex-nl ".5cm")
 920     (if weekend
 921         (progn
 922           (cal-tex-vspace "1cm")
 923           (insert "\\ \\vfill")
 924           (insert (format "{\\Large\\bf %s,} %s/%s/%s\\\\\n"
 925                           dayname1 month1 day1 year1))
 926           (cal-tex-rule "0pt" "7.5cm" ".5mm")
 927           (cal-tex-nl "1.5cm")
 928           (cal-tex-vspace "1cm")))
 929      (cal-tex-e-parbox)
 930      (cal-tex-e-framebox)
 931      (cal-tex-hspace "1cm")))
 932
 933 (defun cal-tex-cursor-filofax-2week (&optional arg)
 934   "Two-weeks-at-a-glance Filofax style calendar for week indicated by cursor.
 935 Optional prefix argument specifies number of weeks.
 936 Diary entries are included if `cal-tex-diary' is t.
 937 Holidays are included if `cal-tex-holidays' is t."
 938   (interactive "P")
 939   (let* ((n (if arg arg 1))
 940          (date (calendar-gregorian-from-absolute
 941                 (calendar-dayname-on-or-before
 942                  calendar-week-start-day
 943                  (calendar-absolute-from-gregorian
 944                   (calendar-cursor-to-date t)))))
 945          (month (extract-calendar-month date))
 946          (year (extract-calendar-year date))
 947          (day (extract-calendar-day date))
 948          (holidays (if cal-tex-holidays
 949                        (cal-tex-list-holidays
 950                         (calendar-absolute-from-gregorian date)
 951                         (+ (* 7 n)
 952                            (calendar-absolute-from-gregorian date)))))
 953          (diary-list (if cal-tex-diary
 954                          (cal-tex-list-diary-entries
 955                           (calendar-absolute-from-gregorian
 956                            (list month 1 year))
 957                         (+ (* 7 n)
 958                            (calendar-absolute-from-gregorian date))))))
 959     (cal-tex-preamble "twoside")
 960     (cal-tex-cmd "\\textwidth 3.25in")
 961     (cal-tex-cmd "\\textheight 6.5in")
 962     (cal-tex-cmd "\\oddsidemargin 1.75in")
 963     (cal-tex-cmd "\\evensidemargin 1.5in")
 964     (cal-tex-cmd "\\topmargin 0pt")
 965     (cal-tex-cmd "\\headheight -0.875in")
 966     (cal-tex-cmd "\\headsep 0.125in")
 967     (cal-tex-cmd "\\footskip .125in")
 968     (insert "\\def\\righthead#1{\\hfill {\\normalsize \\bf #1}\\\\[-6pt]}
 969 \\long\\def\\rightday#1#2#3#4#5{%
 970    \\rule{\\textwidth}{0.3pt}\\\\%
 971    \\hbox to \\textwidth{%
 972      \\vbox to 0.7in{%
 973           \\vspace*{2pt}%
 974           \\hbox to \\textwidth{\\small #5 \\hfill #1 {\\normalsize \\bf #2}}%
 975           \\hbox to \\textwidth{\\vbox {\\raggedleft \\footnotesize \\em #4}}%
 976           \\hbox to \\textwidth{\\vbox to 0pt {\\noindent \\footnotesize #3}}}}\\\\}
 977 \\def\\lefthead#1{\\noindent {\\normalsize \\bf #1}\\hfill\\\\[-6pt]}
 978 \\long\\def\\leftday#1#2#3#4#5{%
 979    \\rule{\\textwidth}{0.3pt}\\\\%
 980    \\hbox to \\textwidth{%
 981      \\vbox to 0.7in{%
 982           \\vspace*{2pt}%
 983           \\hbox to \\textwidth{\\noindent {\\normalsize \\bf #2} \\small #1 \\hfill #5}%
 984           \\hbox to \\textwidth{\\vbox {\\noindent \\footnotesize \\em #4}}%
 985           \\hbox to \\textwidth{\\vbox to 0pt {\\noindent \\footnotesize #3}}}}\\\\}
 986 ")
 987     (cal-tex-b-document)
 988     (cal-tex-cmd "\\pagestyle{empty}")
 989     (calendar-for-loop i from 1 to n do
 990        (if (= (mod i 2) 1)
 991            (insert "\\righthead")
 992          (insert "\\lefthead"))
 993        (cal-tex-arg
 994         (let ((d (cal-tex-incr-date date 6)))
 995           (if (= (extract-calendar-month date)
 996                  (extract-calendar-month d))
 997               (format "%s %s"
 998                       (calendar-month-name
 999                        (extract-calendar-month date))
1000                       (extract-calendar-year date))
1001             (if (=  (extract-calendar-year date)
1002                     (extract-calendar-year d))
1003                 (format "%s---%s %s"
1004                         (calendar-month-name
1005                          (extract-calendar-month date))
1006                         (calendar-month-name
1007                          (extract-calendar-month d))
1008                         (extract-calendar-year date))
1009               (format "%s %s---%s %s"
1010                       (calendar-month-name
1011                        (extract-calendar-month date))
1012                       (extract-calendar-year date)
1013                       (calendar-month-name (extract-calendar-month d))
1014                       (extract-calendar-year d))))))
1015        (insert "%\n")
1016        (calendar-for-loop j from 1 to 7 do
1017           (if (= (mod i 2) 1)
1018               (insert "\\rightday")
1019             (insert "\\leftday"))
1020           (cal-tex-arg (calendar-day-name date))
1021           (cal-tex-arg (int-to-string (extract-calendar-day date)))
1022           (cal-tex-arg (cal-tex-latexify-list diary-list date))
1023           (cal-tex-arg (cal-tex-latexify-list holidays date))
1024           (cal-tex-arg (eval cal-tex-daily-string))
1025           (insert "%\n")
1026           (setq date (cal-tex-incr-date date)))
1027        (if (/= i n)
1028            (progn
1029              (run-hooks 'cal-tex-week-hook)
1030              (cal-tex-newpage))))
1031     (cal-tex-end-document)
1032     (run-hooks 'cal-tex-hook)))
1033
1034 (defun cal-tex-cursor-filofax-week (&optional arg)
1035   "One-week-at-a-glance Filofax style calendar for week indicated by cursor.
1036 Optional prefix argument specifies number of weeks.
1037 Weeks start on Monday.
1038 Diary entries are included if `cal-tex-diary' is t.
1039 Holidays are included if `cal-tex-holidays' is t."
1040   (interactive "P")
1041   (let* ((n (if arg arg 1))
1042          (date (calendar-gregorian-from-absolute
1043                 (calendar-dayname-on-or-before
1044                  1
1045                  (calendar-absolute-from-gregorian
1046                   (calendar-cursor-to-date t)))))
1047          (month (extract-calendar-month date))
1048          (year (extract-calendar-year date))
1049          (day (extract-calendar-day date))
1050          (holidays (if cal-tex-holidays
1051                        (cal-tex-list-holidays
1052                         (calendar-absolute-from-gregorian date)
1053                         (+ (* 7 n)
1054                            (calendar-absolute-from-gregorian date)))))
1055          (diary-list (if cal-tex-diary
1056                          (cal-tex-list-diary-entries
1057                           (calendar-absolute-from-gregorian
1058                            (list month 1 year))
1059                         (+ (* 7 n)
1060                            (calendar-absolute-from-gregorian date))))))
1061     (cal-tex-preamble "twoside")
1062     (cal-tex-cmd "\\textwidth 3.25in")
1063     (cal-tex-cmd "\\textheight 6.5in")
1064     (cal-tex-cmd "\\oddsidemargin 1.75in")
1065     (cal-tex-cmd "\\evensidemargin 1.5in")
1066     (cal-tex-cmd "\\topmargin 0pt")
1067     (cal-tex-cmd "\\headheight -0.875in")
1068     (cal-tex-cmd "\\headsep 0.125in")
1069     (cal-tex-cmd "\\footskip .125in")
1070     (insert "\\def\\righthead#1{\\hfill {\\normalsize \\bf #1}\\\\[-6pt]}
1071 \\long\\def\\rightday#1#2#3#4#5{%
1072    \\rule{\\textwidth}{0.3pt}\\\\%
1073    \\hbox to \\textwidth{%
1074      \\vbox to 1.85in{%
1075           \\vspace*{2pt}%
1076           \\hbox to \\textwidth{\\small #5 \\hfill #1 {\\normalsize \\bf #2}}%
1077           \\hbox to \\textwidth{\\vbox {\\raggedleft \\footnotesize \\em #4}}%
1078           \\hbox to \\textwidth{\\vbox to 0pt {\\noindent \\footnotesize #3}}}}\\\\}
1079 \\long\\def\\weekend#1#2#3#4#5{%
1080    \\rule{\\textwidth}{0.3pt}\\\\%
1081    \\hbox to \\textwidth{%
1082      \\vbox to .8in{%
1083           \\vspace*{2pt}%
1084           \\hbox to \\textwidth{\\small #5 \\hfill #1 {\\normalsize \\bf #2}}%
1085           \\hbox to \\textwidth{\\vbox {\\raggedleft \\footnotesize \\em #4}}%
1086           \\hbox to \\textwidth{\\vbox to 0pt {\\noindent \\footnotesize #3}}}}\\\\}
1087 \\def\\lefthead#1{\\noindent {\\normalsize \\bf #1}\\hfill\\\\[-6pt]}
1088 \\long\\def\\leftday#1#2#3#4#5{%
1089    \\rule{\\textwidth}{0.3pt}\\\\%
1090    \\hbox to \\textwidth{%
1091      \\vbox to 1.85in{%
1092           \\vspace*{2pt}%
1093           \\hbox to \\textwidth{\\noindent {\\normalsize \\bf #2} \\small #1 \\hfill #5}%
1094           \\hbox to \\textwidth{\\vbox {\\noindent \\footnotesize \\em #4}}%
1095           \\hbox to \\textwidth{\\vbox to 0pt {\\noindent \\footnotesize #3}}}}\\\\}
1096 ")
1097     (cal-tex-b-document)
1098     (cal-tex-cmd "\\pagestyle{empty}\\ ")
1099     (cal-tex-newpage)
1100     (calendar-for-loop i from 1 to n do
1101        (insert "\\lefthead")
1102        (cal-tex-arg
1103         (let ((d (cal-tex-incr-date date 2)))
1104           (if (= (extract-calendar-month date)
1105                  (extract-calendar-month d))
1106               (format "%s %s"
1107                       (calendar-month-name
1108                        (extract-calendar-month date))
1109                       (extract-calendar-year date))
1110             (if (=  (extract-calendar-year date)
1111                     (extract-calendar-year d))
1112                 (format "%s---%s %s"
1113                         (calendar-month-name
1114                          (extract-calendar-month date))
1115                         (calendar-month-name
1116                          (extract-calendar-month d))
1117                         (extract-calendar-year date))
1118               (format "%s %s---%s %s"
1119                       (calendar-month-name
1120                        (extract-calendar-month date))
1121                       (extract-calendar-year date)
1122                       (calendar-month-name (extract-calendar-month d))
1123                       (extract-calendar-year d))))))
1124        (insert "%\n")
1125        (calendar-for-loop j from 1 to 3 do
1126           (insert "\\leftday")
1127           (cal-tex-arg (calendar-day-name date))
1128           (cal-tex-arg (int-to-string (extract-calendar-day date)))
1129           (cal-tex-arg (cal-tex-latexify-list diary-list date))
1130           (cal-tex-arg (cal-tex-latexify-list holidays date))
1131           (cal-tex-arg (eval cal-tex-daily-string))
1132           (insert "%\n")
1133           (setq date (cal-tex-incr-date date)))
1134        (insert "\\noindent\\rule{\\textwidth}{0.3pt}\\\\%\n")
1135        (cal-tex-newpage)
1136        (insert "\\righthead")
1137        (cal-tex-arg
1138         (let ((d (cal-tex-incr-date date 3)))
1139           (if (= (extract-calendar-month date)
1140                  (extract-calendar-month d))
1141               (format "%s %s"
1142                       (calendar-month-name
1143                        (extract-calendar-month date))
1144                       (extract-calendar-year date))
1145             (if (=  (extract-calendar-year date)
1146                     (extract-calendar-year d))
1147                 (format "%s---%s %s"
1148                         (calendar-month-name
1149                          (extract-calendar-month date))
1150                         (calendar-month-name
1151                          (extract-calendar-month d))
1152                         (extract-calendar-year date))
1153               (format "%s %s---%s %s"
1154                       (calendar-month-name
1155                        (extract-calendar-month date))
1156                       (extract-calendar-year date)
1157                       (calendar-month-name (extract-calendar-month d))
1158                       (extract-calendar-year d))))))
1159        (insert "%\n")
1160        (calendar-for-loop j from 1 to 2 do
1161           (insert "\\rightday")
1162           (cal-tex-arg (calendar-day-name date))
1163           (cal-tex-arg (int-to-string (extract-calendar-day date)))
1164           (cal-tex-arg (cal-tex-latexify-list diary-list date))
1165           (cal-tex-arg (cal-tex-latexify-list holidays date))
1166           (cal-tex-arg (eval cal-tex-daily-string))
1167           (insert "%\n")
1168           (setq date (cal-tex-incr-date date)))
1169        (calendar-for-loop j from 1 to 2 do
1170           (insert "\\weekend")
1171           (cal-tex-arg (calendar-day-name date))
1172           (cal-tex-arg (int-to-string (extract-calendar-day date)))
1173           (cal-tex-arg (cal-tex-latexify-list diary-list date))
1174           (cal-tex-arg (cal-tex-latexify-list holidays date))
1175           (cal-tex-arg (eval cal-tex-daily-string))
1176           (insert "%\n")
1177           (setq date (cal-tex-incr-date date)))
1178        (if (/= i n)
1179            (progn
1180              (run-hooks 'cal-tex-week-hook)
1181              (cal-tex-newpage))))
1182     (cal-tex-end-document)
1183     (run-hooks 'cal-tex-hook)))
1184 ;;;
1185 ;;;  Daily calendars
1186 ;;;
1187
1188 (defun cal-tex-cursor-day (&optional arg)
1189   "Make a buffer with LaTeX commands for the day cursor is on.
1190 Optional prefix argument specifies number of days."
1191   (interactive "P")
1192   (let ((n (if arg arg 1))
1193         (date (calendar-absolute-from-gregorian (calendar-cursor-to-date t))))
1194     (cal-tex-preamble "12pt")
1195     (cal-tex-cmd "\\textwidth       6.5in")
1196     (cal-tex-cmd "\\textheight 10.5in")
1197     (cal-tex-b-document)
1198     (cal-tex-cmd "\\pagestyle{empty}")
1199     (calendar-for-loop i from 1 to n do
1200        (cal-tex-vspace "-1.7in")
1201        (cal-tex-daily-page (calendar-gregorian-from-absolute date))
1202        (setq date (1+ date))
1203        (if (/= i n)
1204           (progn
1205             (cal-tex-newpage)
1206             (run-hooks 'cal-tex-daily-hook))))
1207     (cal-tex-end-document)
1208     (run-hooks 'cal-tex-hook)))
1209
1210 (defun cal-tex-daily-page (date)
1211   "Make a calendar page for Gregorian DATE on 8.5 by 11 paper."
1212   (let* ((hour)
1213          (month-name (calendar-month-name (extract-calendar-month date))))
1214     (cal-tex-banner "cal-tex-daily-page")
1215     (cal-tex-b-makebox "4cm" "l")
1216     (cal-tex-b-parbox "b" "3.8cm")
1217     (cal-tex-rule "0mm" "0mm" "2cm")
1218     (cal-tex-Huge (number-to-string (extract-calendar-day date)))
1219     (cal-tex-nl ".5cm")
1220     (cal-tex-bf month-name )
1221     (cal-tex-e-parbox)
1222     (cal-tex-hspace "1cm")
1223     (cal-tex-scriptsize (eval cal-tex-daily-string))
1224     (cal-tex-hspace "3.5cm")
1225     (cal-tex-e-makebox)
1226     (cal-tex-hfill)
1227     (cal-tex-b-makebox "4cm" "r")
1228     (cal-tex-bf (calendar-day-name date))
1229     (cal-tex-e-makebox)
1230     (cal-tex-nl)
1231     (cal-tex-hspace ".4cm")
1232     (cal-tex-rule "0mm" "16.1cm" "1mm")
1233     (cal-tex-nl ".1cm")
1234     (calendar-for-loop i from cal-tex-daily-start to cal-tex-daily-end do
1235        (cal-tex-cmd "\\noindent")
1236        (setq hour (if cal-tex-24
1237                       i
1238                     (mod i 12)))
1239        (if (= 0 hour) (setq hour 12))
1240        (cal-tex-b-makebox "1cm" "c")
1241        (cal-tex-arg (number-to-string hour))
1242        (cal-tex-e-makebox)
1243        (cal-tex-rule "0mm" "15.5cm" ".2mm")
1244        (cal-tex-nl ".2cm")
1245        (cal-tex-b-makebox "1cm" "c")
1246        (cal-tex-arg "$\\diamond$" )
1247        (cal-tex-e-makebox)
1248        (cal-tex-rule "0mm" "15.5cm" ".2mm")
1249        (cal-tex-nl ".2cm"))
1250     (cal-tex-hfill)
1251     (insert (cal-tex-mini-calendar
1252              (extract-calendar-month (cal-tex-previous-month date))
1253              (extract-calendar-year (cal-tex-previous-month date))
1254              "lastmonth" "1.1in" "1in"))
1255     (insert (cal-tex-mini-calendar
1256              (extract-calendar-month date)
1257              (extract-calendar-year date)
1258              "thismonth" "1.1in" "1in"))
1259     (insert (cal-tex-mini-calendar
1260              (extract-calendar-month (cal-tex-next-month date))
1261              (extract-calendar-year (cal-tex-next-month date))
1262              "nextmonth" "1.1in" "1in"))
1263     (insert "\\hbox to \\textwidth{")
1264     (cal-tex-hfill)
1265     (insert "\\lastmonth")
1266     (cal-tex-hfill)
1267     (insert "\\thismonth")
1268     (cal-tex-hfill)
1269     (insert "\\nextmonth")
1270     (cal-tex-hfill)
1271     (insert "}")
1272     (cal-tex-banner "end of cal-tex-daily-page")))
1273
1274 ;;;
1275 ;;;  Mini calendars
1276 ;;;
1277
1278 (defun cal-tex-mini-calendar (month year name width height &optional size)
1279   "Produce mini-calendar for MONTH, YEAR in macro NAME with WIDTH and HEIGHT.
1280 Optional SIZE gives the point size; scriptsize is the default,"
1281   (let* ((blank-days;; at start of month
1282           (mod
1283            (- (calendar-day-of-week (list month 1 year))
1284               calendar-week-start-day)
1285            7))
1286          (last (calendar-last-day-of-month month year))
1287          (str (concat "\\def\\" name "{\\hbox to" width "{%\n"
1288                       "\\vbox to" height "{%\n"
1289                       "\\vfil  \\hbox to" width "{%\n"
1290                       "\\hfil\\"
1291                       (if size size "scriptsize")
1292                       "\\begin{tabular}"
1293                       "{@{\\hspace{1mm}}r@{\\hspace{1mm}}r@{\\hspace{1mm}}r@{\\hspace{1mm}}"
1294                       "r@{\\hspace{1mm}}r@{\\hspace{1mm}}r@{\\hspace{1mm}}r@{\\hspace{1mm}}}%\n"
1295                       "\\multicolumn{7}{c}{"
1296                       (calendar-month-name month)
1297                       " "
1298                       (int-to-string year)
1299                       "}\\\\[0.5mm]\n")))
1300     (calendar-for-loop i from 0 to 6 do
1301       (setq str (concat str
1302                         (substring (aref calendar-day-name-array
1303                                          (mod (+ calendar-week-start-day i) 7))
1304                                    0 2)
1305                         (if (/= i 6)
1306                             " & "
1307                           "\\\\[0.5mm]\n"))))
1308     (calendar-for-loop i from 1 to blank-days do
1309       (setq str (concat str " & ")))
1310     (calendar-for-loop i from 1 to last do
1311       (setq str (concat str (int-to-string i)))
1312       (setq str (concat str (if (zerop (mod (+ i blank-days) 7))
1313                                 (if (/= i last) "\\\\[0.5mm]\n" "")
1314                               " & "))))
1315     (setq str (concat str "\n\\end{tabular}\\hfil}\\vfil}}}%\n"))
1316    str))
1317
1318 ;;;
1319 ;;;  Various calendar functions
1320 ;;;
1321
1322 (defun cal-tex-incr-date (date &optional n)
1323   "The date of the day following DATE.
1324 If optional N is given, the date of N days after DATE."
1325   (calendar-gregorian-from-absolute
1326    (+ (if n n 1) (calendar-absolute-from-gregorian date))))
1327
1328 (defun cal-tex-latexify-list (date-list date &optional separator)
1329   "Return string with concatenated, LaTeXified entries in DATE_LIST for DATE.
1330 Use double backslash as a separator unless optional SEPARATOR is given."
1331   (mapconcat '(lambda (x) (cal-tex-LaTeXify-string  x))
1332              (let ((result)
1333                    (p date-list))
1334                (while p
1335                  (and (car (car p))
1336                       (calendar-date-equal date (car (car p)))
1337                       (setq result (append (cdr (car p)) result)))
1338                  (setq p (cdr p)))
1339                result)
1340              (if separator separator "\\\\")))
1341
1342 (defun cal-tex-previous-month (date)
1343   "Return the date of the first day in the month previous to DATE."
1344   (let* ((month (extract-calendar-month date))
1345          (year (extract-calendar-year date)))
1346     (increment-calendar-month month year -1)
1347     (list month 1 year)))
1348
1349 (defun cal-tex-next-month (date)
1350   "Return the date of the first day in the  month following DATE."
1351   (let* ((month (extract-calendar-month date))
1352          (year (extract-calendar-year date)))
1353     (increment-calendar-month month year 1)
1354     (list month 1 year)))
1355
1356 ;;;
1357 ;;;  LaTeX Code
1358 ;;;
1359
1360 (defun cal-tex-end-document ()
1361   "Finish the LaTeX document.
1362 Insert the trailer to LaTeX document, pop to LaTeX buffer, add
1363 informative header, and run HOOK."
1364   (cal-tex-e-document)
1365   (latex-mode)
1366   (pop-to-buffer cal-tex-buffer)
1367   (goto-char (point-min))
1368   (cal-tex-comment "       This buffer was produced by cal-tex.el.")
1369   (cal-tex-comment "       To print a calendar, type")
1370   (cal-tex-comment "          M-x tex-buffer RET")
1371   (cal-tex-comment "          M-x tex-print  RET")
1372   (goto-char (point-min)))
1373
1374 (defun cal-tex-insert-preamble (weeks landscape size &optional append)
1375   "Initialize the output buffer.
1376 Select the output buffer, and insert the preamble for a calendar of
1377 WEEKS weeks.  Insert code for landscape mode if LANDSCAPE is true.
1378 Use pointsize SIZE.  Optional argument APPEND, if t, means add to end of
1379 without erasing current contents."
1380   (let ((width "18cm")
1381         (height "24cm"))
1382     (if landscape
1383         (progn
1384           (setq width "24cm")
1385           (setq height "18cm")))
1386     (if (not append)
1387         (progn
1388           (cal-tex-preamble size)
1389           (if (not landscape)
1390             (progn
1391               (cal-tex-cmd "\\oddsidemargin -1.75cm")
1392               (cal-tex-cmd "\\def\\holidaymult{.06}"))
1393             (cal-tex-cmd "\\special{landscape}")
1394             (cal-tex-cmd "\\textwidth  9.5in")
1395             (cal-tex-cmd "\\textheight 7in")
1396             (cal-tex-comment)
1397             (cal-tex-cmd "\\def\\holidaymult{.08}"))
1398           (cal-tex-cmd  cal-tex-caldate)
1399           (cal-tex-cmd  cal-tex-myday)
1400           (cal-tex-b-document)
1401           (cal-tex-cmd "\\pagestyle{empty}")))
1402     (cal-tex-cmd "\\setlength{\\cellwidth}" width)
1403     (insert (format "\\setlength{\\cellwidth}{%f\\cellwidth}\n"
1404                     (/ 1.1 (length cal-tex-which-days))))
1405     (cal-tex-cmd "\\setlength{\\cellheight}" height)
1406     (insert (format "\\setlength{\\cellheight}{%f\\cellheight}\n"
1407                     (/ 1.0 weeks)))
1408     (cal-tex-cmd "\\ \\par")
1409     (cal-tex-vspace "-3cm")))
1410
1411 (defvar cal-tex-LaTeX-subst-list
1412   '(("\"". "``")
1413     ("\"". "''");; Quote changes meaning when list is reversed.
1414     ("@" . "\\verb|@|")
1415     ("&" . "\\&")
1416     ("%" . "\\%")
1417     ("$" . "\\$")
1418     ("#" . "\\#")
1419     ("_" . "\\_")
1420     ("{" . "\\{")
1421     ("}" . "\\}")
1422     ("<" . "$<$")
1423     (">" . "$>$")
1424     ("\n" . "\\ \\\\"))  ;\\ needed for e.g \begin{center}\n AA\end{center}
1425   "List of symbols and their replacements.")
1426
1427 (defun cal-tex-LaTeXify-string (string)
1428   "Protect special characters in STRING from LaTeX."
1429   (if (not string)
1430       ""
1431     (let ((head "")
1432           (tail string)
1433           (list cal-tex-LaTeX-subst-list))
1434       (while (not (string-equal tail ""))
1435         (let* ((ch (substring tail 0 1))
1436                (pair (assoc ch list)))
1437           (if (and pair (string-equal ch "\""))
1438               (setq list (reverse list)));; Quote changes meaning each time.
1439           (setq tail (substring tail 1))
1440           (setq head (concat head (if pair (cdr pair) ch)))))
1441       head)))
1442
1443 (defun cal-tex-hfill () "Insert hfill." (insert "\\hfill"))
1444
1445 (defun cal-tex-newpage () "Insert newpage." (insert "\\newpage%\n"))
1446
1447 (defun cal-tex-noindent () "Insert noindent." (insert "\\noindent"))
1448
1449 (defun cal-tex-vspace (space)
1450   "Insert vspace command to move SPACE vertically."
1451   (insert "\\vspace*{" space "}")
1452   (cal-tex-comment))
1453
1454 (defun cal-tex-hspace (space)
1455   "Insert hspace command to move SPACE horizontally."
1456   (insert "\\hspace*{" space "}")
1457   (cal-tex-comment))
1458
1459 (defun cal-tex-comment (&optional comment)
1460   "Insert % at end of line, include COMMENT if present, and move
1461    to next line."
1462   (insert "% ")
1463   (if comment
1464       (insert comment))
1465   (insert "\n"))
1466
1467 (defun cal-tex-banner (comment)
1468   "Insert the COMMENT separated by blank lines."
1469   (cal-tex-comment)
1470   (cal-tex-comment)
1471   (cal-tex-comment (concat "\t\t\t" comment))
1472   (cal-tex-comment))
1473
1474
1475 (defun cal-tex-nl (&optional skip comment)
1476   "End a line with \\.  If SKIP, then add that much spacing.
1477    Add COMMENT if present"
1478   (insert "\\\\")
1479   (if skip
1480       (insert "[" skip "]"))
1481   (cal-tex-comment comment))
1482
1483 (defun cal-tex-arg (&optional text)
1484   "Insert optional TEXT surrounded by braces."
1485   (insert "{")
1486   (if text (insert text))
1487   (insert "}"))
1488
1489 (defun cal-tex-cmd (cmd &optional arg)
1490   "Insert LaTeX CMD, with optional ARG, and end with %"
1491   (insert cmd)
1492   (cal-tex-arg arg)
1493   (cal-tex-comment))
1494
1495 ;;;
1496 ;;;   Environments
1497 ;;;
1498
1499 (defun cal-tex-b-document ()
1500   "Insert beginning of document."
1501   (cal-tex-cmd "\\begin{document}"))
1502
1503 (defun cal-tex-e-document ()
1504   "Insert end of document."
1505   (cal-tex-cmd "\\end{document}"))
1506
1507 (defun cal-tex-b-center ()
1508   "Insert beginning of centered block."
1509   (cal-tex-cmd "\\begin{center}"))
1510
1511 (defun cal-tex-e-center ()
1512   "Insert end of centered block."
1513   (cal-tex-comment)
1514   (cal-tex-cmd "\\end{center}"))
1515
1516
1517 ;;;
1518 ;;;  Boxes
1519 ;;;
1520
1521
1522 (defun cal-tex-b-parbox (position width)
1523   "Insert parbox with parameters POSITION and WIDTH."
1524   (insert "\\parbox[" position "]{" width "}{")
1525   (cal-tex-comment))
1526
1527 (defun cal-tex-e-parbox (&optional height)
1528   "Insert end of parbox. Force it to be a given HEIGHT."
1529   (cal-tex-comment)
1530   (if height
1531       (cal-tex-rule "0mm" "0mm" height))
1532   (insert "}")
1533   (cal-tex-comment "end parbox"))
1534
1535 (defun cal-tex-b-framebox ( width position )
1536   "Insert  framebox with parameters WIDTH and POSITION (clr)."
1537   (insert "\\framebox[" width "][" position "]{" )
1538   (cal-tex-comment))
1539
1540 (defun cal-tex-e-framebox ()
1541   "Insert end of framebox."
1542   (cal-tex-comment)
1543   (insert "}")
1544   (cal-tex-comment "end framebox"))
1545
1546
1547 (defun cal-tex-b-makebox ( width position )
1548   "Insert  makebox with parameters WIDTH and POSITION (clr)."
1549   (insert "\\makebox[" width "][" position "]{" )
1550   (cal-tex-comment))
1551
1552 (defun cal-tex-e-makebox ()
1553   "Insert end of makebox."
1554   (cal-tex-comment)
1555   (insert "}")
1556   (cal-tex-comment "end makebox"))
1557
1558
1559 (defun cal-tex-rule (lower width height)
1560   "Insert a rule with parameters LOWER WIDTH HEIGHT."
1561   (insert "\\rule[" lower "]{" width "}{" height "}"))
1562
1563 ;;;
1564 ;;;     Fonts
1565 ;;;
1566
1567 (defun cal-tex-em (string)
1568   "Insert STRING in bf font."
1569   (insert "{\\em " string "}"))
1570
1571 (defun cal-tex-bf (string)
1572   "Insert STRING in bf font."
1573   (insert "{\\bf " string "}"))
1574
1575 (defun cal-tex-scriptsize (string)
1576   "Insert STRING in scriptsize font."
1577   (insert "{\\scriptsize " string "}"))
1578
1579 (defun cal-tex-huge (string)
1580   "Insert STRING in huge size."
1581   (insert "{\\huge " string "}"))
1582
1583 (defun cal-tex-Huge (string)
1584   "Insert STRING in Huge size."
1585   (insert "{\\Huge " string "}"))
1586
1587 (defun cal-tex-Huge-bf (string)
1588   "Insert STRING in Huge bf size."
1589   (insert "{\\Huge\\bf " string "}"))
1590
1591 (defun cal-tex-large (string)
1592   "Insert STRING in large size."
1593   (insert "{\\large " string "}"))
1594
1595 (defun cal-tex-large-bf (string)
1596   "Insert STRING in large bf size."
1597   (insert "{\\large\\bf  " string "}"))
1598
1599 (provide 'cal-tex)
1600
1601 ;;; cal-tex.el ends here