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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
; LATEX.CMD 
;
; microEMACS for Windows macros to give LaTeX functionality
;
; MODIFICATION HISTORY:
; Feb 10 94 Took out readhook line.  
; Feb 04 94 Modified for MEW 3.12
; Note that there are still some funny bugs, particularly with
; reference to file locking. If you get funny errors about
; files being in use, try deleting the "._xlk" sub-directories. 
; Jan 25 93  Use dviwin as viewer
;
; MEWLaTeX Version 1.0
;
; Original release Jan 11 1993.
;
;    Michael F. Reid <M.Reid@phys.canterbury.ac.nz>
;    Department of Physics and Astronomy, University of Canterbury
;    Christchurch, New Zealand. 
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
; There are three sections:
; GENERAL
; SPELL-CHECKING
; LATEX
;
; Key bindings and menu bindings are at the end of each section
;
; We begin with variables that must be setup locally by the user. 
; As a debug tool we have variable %l-menus-loaded to prevent menus
; from being loaded twice if we edit the file and re-run it. 
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
;                              VARIABLES
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;  GENERAL

set %x-rename "xrename.bat" ; delete and rename, used for backup-save
; if xrename.bat is not in your path, you won't get a backup!

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;  SPELL CHECKING

set %spell-exec "spell.pif"
; using spell.pif allows better control over the spell-checker
; amSpell likes to run full-screen, for example  

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;  LaTeX

set %l-file-path "e:\bin\mewin\latex\"     
			    ; finish with "\"
			    ; place to look for help and templates
set %l-latex     "latex.pif"
set %l-tex       "tex.pif"
set %l-view      "e:\tex\dviwin\dviwin"  
set %l-print     "texprint.pif"
set %l-dvi2ps    "dvi2ps.pif"
set %l-psview    "gs.pif"
set %l-makeindex "makeindx.pif"
set %l-bibtex    "bibtex.pif"

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
;           GENERAL COMMANDS
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

set $discmd FALSE 

print "[Loading general macros...]"

store-procedure toggle-overwrite ; make Insert key behave "normally"
  set $cmode &bxor $cmode 32 
!endm

store-procedure del-blanks   ; use ^Delete to delete to next non-blank
  !while TRUE
    !if &not &seq &chr $curchar " "
      !return
    !endif
    delete-next-character
  !endwhile 
!endm 

store-procedure insert-date
 insert-string $time 
!endm

store-procedure save-all-buffers
; This macro saves all the modified buffers to their respective
; files
; Modified by MFR - you could replace the version in emacs.rc
    set %tmp $cbufname
    !while TRUE
	!if &equ $cbflags 2  ;MFR don't try to save unchanged files
	    !force save-file
	!endif  
	!force next-buffer
	!if &seq %tmp $cbufname
	    !return
	!endif
    !endwhile
!endm

store-procedure readhook-proc  ; TeX and bib get C and Wrap modes
; modified by MFR - you could replace the version in emacs.rc
    run extension
    !if &sin "|c|h|cpp|hpp|dlg|def|rc|cmd|" &cat &cat "|" %ext "|"
	add-mode cmode
    !else
	!if &sin "||me|1st|doc|txt|" &cat &cat "|" %ext "|"
	    add-mode wrap
	!else
	    !if &sin "||tex|bib|" &cat &cat "|" %ext "|"
		add-mode cmode
		add-mode wrap
	    !endif
	!endif     
    !endif
!endm
; set $readhook readhook-proc ; commented out 10 Feb 94

store-procedure file-split 
; split $cfname into %f-dir %f-name %f-ext  
; uses %f-tmp1, %f-tmp2, %f-tmp3
    set %f-dir  &low $cfname
    set %f-name ""
    set %f-ext  ""
    set %f-tmp1 &length %f-dir
    set %f-tmp2 &sindex %f-dir "."
    !if &not &equ %f-tmp2 0
	set %f-ext &mid %f-dir &add %f-tmp2 1   &sub %f-tmp1 %f-tmp2
	set %f-dir &mid %f-dir 1              &sub %f-tmp2 1  
    !endif
    set %f-tmp1 &length %f-dir
    set %f-tmp2 &sindex %f-dir "\"
    !if &not &equ %f-tmp2 0
      set %f-tmp2 &length %f-dir
      !while &not &sequal "\" &mid %f-dir %f-tmp2 1
	 set %f-tmp3 &mid %f-dir %f-tmp2 1
	 set %f-tmp2 &sub %f-tmp2 1
      !endwhile
      set %f-name &mid %f-dir &add %f-tmp2 1   &sub %f-tmp1 %f-tmp2
      set %f-dir  &mid %f-dir 1              %f-tmp2
    !endif  
    ; print &cat &cat &cat &cat %f-dir "+" %f-name "+" %f-ext
!endm

store-procedure query-save-all
; This macro saves all the modified buffers to their respective
; files, but asks as it goes along
; uses %f-tmp1, %f-tmp2
    set %f-tmp1 $cbufname
    !while TRUE
	!if &equ $cbflags 2 
	  set %f-tmp2 @&cat &cat "Save " $cbufname " (y/n)? [y]: "
	  !if &not &sequal %f-tmp2 "n"
	    !force save-file  
	  !endif
	!endif  
	!force next-buffer
	!if &seq %f-tmp1 $cbufname
	    !return
	!endif
    !endwhile
!endm

store-procedure backup-save
; renames then saves, like gnuemcs x.y -> x.~y
; uses %f-tmp1, %f-tmp2, %f-tmp3
; x-rename is a batch file name. Batch file contains:
; del     %2
; rename  %1 %2 
  !if &not &equ $cbflags 2                          ; needs saving?
    print "[File not modified]"
  !else
    file-split
    set %f-tmp1 $cbufname                             ; old buffer
    set %f-tmp2 $cfname                               ; old filename
    set %f-tmp3 &cat &cat &cat %f-name ".~~" %f-ext   ; backup filename
    print "[Backing up...]"
    ; 1 forces it to wait for completion
    1 shell-command &cat &cat &cat &cat %x-rename " " %f-tmp2 " " %f-tmp3
    save-file
  !endif
!endm

store-procedure s-insert-file
; insert file, keeping point at same place, like gnu emacs
; uses %s-tmp
  set %s-tmp $yankflag
  set $yankflag TRUE
  !force execute-named-command insert-file
  set $yankflag %s-tmp 
!endm

store-procedure force-current-directory
; make sure we are using directory of current buffer
  !if &not &seq $cfname "" ; e.g. main has no file name
    !force find-file $cfname ; force current directory
  !endif  
!endm

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; GENERAL MENU ADDITIONS
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

bind-to-key set-mark          ^@    ; gnu binding ; Doesn't work for 3.12
   ; This is because ^@ means ^-space --- see documentation :-(
                        			 
macro-to-key toggle-overwrite FNC   ; Insert key
macro-to-key del-blanks       FN^D  ; ^Delete
macro-to-key save-all-buffers M-^Z  ; bind to ESC Ctrl+Z
macro-to-key backup-save M-S        ; 
macro-to-key s-insert-file ^XI      ; gnu binding
macro-to-key s-insert-file ^X^I     ; old insert-file binding

!if &not %l-menus-loaded
  ; change from insert-file to s-insert-file
  unbind-menu ">&File>&Insert..."
  macro-to-menu s-insert-file ">&File>&Insert...@2" 
  ; add backup-save to File menu
  macro-to-menu backup-save ">&File>Back&up and Save@6"

  ; add insert-date to Edit menu
  macro-to-menu insert-date ">&Edit>Insert &Date@3"

  ; add clip-region to menu under Edit/Region
  bind-to-menu clip-region ">&Edit>&Region>To Clip&board@0"
  bind-to-menu    nop             "-"
!endif 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
;     SPELL-CHECKING COMMANDS
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

; Run spell checker on current buffer and re-read the file. 
; The spell-checker is a DOS program stored in %spell-exec 

write-message "[Loading Spell macros...]"


store-procedure spell-buffer
; uses s-tmp1
  save-file
  run force-current-directory
  ; the 1 forces it to wait for completion
  1 execute-program &cat &cat %spell-exec " " $cfname 
  set %s-tmp1 @"[Spell] (Wait until completion) Re-Read file (y/n)? [y]: "
  !if &not &sequal &lower %s-tmp1 "n"
     read-file $cfname
  !endif
!endm

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SPELL-CHECKING MENU ADDITIONS
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

!if &not %l-menus-loaded
  macro-to-menu spell-buffer ">S&pell@4>&Buffer"
!endif

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
;                  LaTeX COMMANDS
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;


print "[Loading LaTeX macros...]"

set $fmtlead "\ %"     ; to prevent formatting of TeX stuff. Note blank!
set $paralead "\% ~t" 

set %l-log-screen  "LaTeX LOG"
set %l-log-buffer  "_texlog"
set %l-fn        "?"  ; file name being processed (no extension)
set %l-prog      "?"  ; program being used
set %l-ext       "?"  ; extension for program (tex, dvi, etc.)
set %l-log       "?"  ; logfile extension

store-procedure set-latex-fn
; uses %l-fn, %l-tmp1
; set LaTeX file name 
; default is current buffer - remembers from run to run.
    !if &sequ %l-fn "?"
	 run file-split
	 set %l-fn %f-name
    !endif
    set %l-tmp1 ""
    set %l-tmp1 @&cat &cat &cat %l-prog " Filename (^G aborts )[" %l-fn "]: "
    !if &not &equ 0 &sindex %l-tmp1  "[" ; Hack for ^G
      print [Abort]
      set %l-fn "?"
      set %l-tmp1 ""
      !return
    !endif
    !if &not &equal 0 &length %l-tmp1
      set %l-fn %l-tmp1
    !endif 
    print &cat &cat %l-prog "file name: " %l-fn 
!endm

store-procedure l-run
; uses %l-fn
; %l-prog and %l-ext must be set before running this
    run query-save-all 
    run set-latex-fn
    run force-current-directory
    !if &seq %l-fn "?" ; no file
      !return 
    !endif
    !if &not &exist &cat &cat %l-fn "." %l-ext
      print &cat &cat &cat &cat "[No file " %l-fn "." %l-ext "]"
      set %l-fn "?" 
    !else
      ; kill old log 
      !if &seq $scrname %l-log-screen      ; current screen is log
	!force delete-buffer %l-log-buffer ; kill buffer
	!force select-buffer %l-log-buffer 
	add-mode view
      !else                                ; current screen is not log
	!force delete-screen %l-log-screen ; kill screen and buffer
	!force delete-buffer %l-log-buffer
      !endif
      print &cat &cat &cat &cat "[" %l-prog " " %l-fn "]"
      !if &seq %l-ext "ps"                 ; gs requires the ".ps"
	execute-program &cat &cat &cat %l-prog " " %l-fn ".ps"
      !else
	execute-program &cat &cat %l-prog " " %l-fn
      !endif  
    !endif
!endm

store-procedure run-latex
  set %l-prog %l-latex
  set %l-ext  "tex"
  set %l-log  "log"
  run l-run
!endm

store-procedure run-tex
  set %l-prog %l-tex
  set %l-ext  "tex"
  set %l-log  "log"
  run l-run
!endm

store-procedure run-bibtex
  set %l-prog %l-bibtex
  set %l-ext  "aux"
  set %l-log  "blg"
  run l-run
!endm

store-procedure run-makeindex
  set %l-prog %l-makeindex
  set %l-ext  "aux"
  set %l-log  "ilg"
  run l-run
!endm

store-procedure print-latex
  set %l-prog %l-print
  set %l-ext  "dvi"
  set %l-log  "?"
  run l-run
!endm

store-procedure dvi2ps-latex
  set %l-prog %l-dvi2ps
  set %l-ext  "dvi"
  set %l-log  "?"
  run l-run
!endm

store-procedure psview-latex
  set %l-prog %l-psview
  set %l-ext  "ps"
  set %l-log  "?"
  run l-run
!endm

store-procedure view-latex
  set %l-prog %l-view
  set %l-ext "dvi"
  run set-latex-fn
  run force-current-directory
  !if &not &exist &cat %l-fn ".dvi"
      run file-split 
      print &cat &cat "[No file " %l-fn ".dvi]" 
      set %l-fn "?" 
  !else
    print &cat &cat "[view " %l-fn "]"
    execute-program &cat &cat &cat %l-view " " %l-fn ".dvi"
  !endif   
!endm

store-procedure view-charset  ; View LaTeX character set
  !if &not &exist &cat %l-file-path "charset.dvi"
     print &cat &cat "[No file " %l-file-path "charset.dvi]"
  !else
    print &cat &cat "[view " %l-file-path  "charset.dvi]"  
    execute-program &cat &cat &cat %l-view " " %l-file-path "charset.dvi"
  !endif  
!endm

store-procedure l-display-log
  run force-current-directory
  set %l-tmp1 &cat &cat %l-fn "." %l-log
  set %l-tmp2 @&cat &cat " Read Log (^G aborts )[" %l-tmp1 "]: "
  !if &not &equ 0 &sindex %l-tmp2  "[" ; Hack for ^G
    print "[Abort]"
    !return
  !endif
  !if &not &equ &len %l-tmp2 0
    set %l-tmp1 %l-tmp2
  !endif
  !if &not &exist %l-tmp1
    print &cat &cat "[No file " %l-tmp1 "]"
    !return
  !endif  
  !force find-screen   %l-log-screen
  !force select-buffer %l-log-buffer
  !force read-file %l-tmp1
  add-mode view
  print "[F4 to find error]"
!endm

store-procedure l-find-error
; Modified for 3.12 by turning $discmd on and off... 4 Feb 94
; parse LaTeX log-file for errors
; %e-upto is line in log-file we are up to
; %e-line and %e-file are where the errors are
; uses %l-tmp1
  print "[Searching for LaTeX error]"
  set $discmd FALSE
  find-screen   %l-log-screen 
  select-buffer %l-log-buffer
  set $discmd TRUE      ; turning it on seems essential 
  !if &seq $cfname ""   ; read log if there is none 
    l-display-log
    update-screen
    print "[Searching for LaTeX error]"
  !endif
  set $discmd FALSE
  !force search-forward "~nl."  ; find next error
  !if &not $status
    print "[No more errors]"
    !return
  !endif
  update-screen 
  set %e-upto $curline 
  set-mark
  end-of-word
  set %e-line $region
  set %e-paren 1              ; number of parentheses - count down to 0
  !force search-reverse "~!"             ; search back for file name
  !while TRUE
    !force previous-line
    !if &not $status
      print "[Cannot locate file name]"
      !return
    !endif
    beginning-of-line
    !if &seq &chr $curchar "?"       ; skip error listing
       !force search-reverse "~n!"
       !force next-line 
    !else
      !if &seq &chr $curchar "."     ; TeX warnings
	!force search-reverse "~n[]"
      !else
       !if &not &seq &mid $line 1 15 "LaTeX Warning: "
	 !if &not &seq &chr $curchar "\"
	   !if &not &and &equ &sindex $line "(" 0 &equ &sindex $line ")" 0
	   ; examine the line for brackets
	     ; update-screen
	     ; set %dummy @&cat &cat &cat "examining line" $line " " %e-paren
	   
	     end-of-line
	     !while &not &equ $curcol 0
	       backward-character
	       !if &seq &chr $curchar "("
		 set %e-paren &sub %e-paren 1
	       !endif
	       !if &seq &chr $curchar ")"
		 set %e-paren &add %e-paren 1
	       !endif
	       !if &equ %e-paren 0
		 !break
	       !endif  
	     !endwhile
	     !if &equ %e-paren 0
	       !break
	     !endif
	   !endif ; end of examine the line for brackets
	 !endif
       !endif 
      !endif
    !endif
  !endwhile      ; should now be at filename
  !if &not &seq &chr $curchar "("
    print "[Cannot locate file name]"
    !return
  !endif
  forward-character
  set-mark 
  end-of-line
  set %e-file $region
  set %l-tmp1 &sindex %e-file " "    ; always a blank before [n] etc.
  !if &not &equ 0 %l-tmp1
    set %e-file &mid %e-file 1 &sub %l-tmp1 1
  !endif
  goto-line %e-upto
  !force next-line
  beginning-of-line
  set $discmd TRUE
  update-screen
  print &cat &cat %e-file " " %e-line
  set %l-tmp1 @&cat &cat &cat "Enter for error: " %e-file " " %e-line
  set $discmd FALSE
  !force find-file %e-file
  set %l-tmp $cbufname       ; juggle the buffers - must be easier way!
  !force find-screen   %l-tmp
  !force select-buffer %l-tmp
  !force find-screen   %l-log-screen
  !force select-buffer %l-log-buffer
  !force find-screen   %l-tmp
  !if &not $status
    set $discmd TRUE
    print &cat &cat "[Cannot find file " %e-file "]"
    set $discmd FALSE
  !endif
  !force goto-line %e-line
  set $discmd TRUE
  print "[F4 for next error]"
!endm



store-procedure clear-latex-file
  set %l-fn "?"
!endm

; superscripts/subscripts

store-procedure superscript-b
  insert-string "^{}"
  backward-character
!endm

store-procedure subscript-b
  insert-string "_{}"
  backward-character
!endm

; useful pairs of delimiters

store-procedure curly-b
  insert-string "{}"
  backward-character
!endm

store-procedure round-b
  insert-string "()"
  backward-character
!endm

store-procedure square-b
  insert-string "[]"
  backward-character
!endm

store-procedure angle-b
  insert-string "\langle\rangle"
  7 backward-character
!endm

store-procedure vert-b
  insert-string "||"
  backward-character
!endm

store-procedure d-vert-b
  insert-string "\|\|"
  2 backward-character
!endm

store-procedure quote-b
  insert-string "``''"
  backward-character
  backward-character
!endm

store-procedure slash-curly-b
  insert-string "\{\}"
  2 backward-character
!endm

store-procedure slash-round-b
  insert-string "\(\)"
  2 backward-character
!endm

store-procedure slash-square-b
  insert-string "\[\]"
  2 backward-character
!endm

store-procedure dollar-b
  insert-string "$$"
  backward-character
!endm

store-procedure double-dollar-b
  insert-string "$$$$"
  2 backward-character
!endm

store-procedure sizable-curly-b
  insert-string "\left\{\right\}"
  8 backward-character
!endm

store-procedure sizable-square-b
  insert-string "\left[\right]"
  7 backward-character
!endm

store-procedure sizable-round-b
  insert-string "\left(\right)"
  7 backward-character
!endm

store-procedure sizable-angle-b
  insert-string "\left\langle\right\rangle"
  13 backward-character
!endm

store-procedure sizable-vert-b
  insert-string "\left|\right|"
  7 backward-character
!endm

store-procedure sizable-d-vert-b
  insert-string "\left\|\right\|"
  8 backward-character
!endm

set %p-doline FALSE   ; default is to do a "word"
set %p-gotop  TRUE    ; default is to go to top of file
		      ; other choices may be useful

; store the general motion commands for position-cursor
; in %motion-c1 and %motion-c2
; NOTE: Too long a string crashes the program !!
set %motion-c1               "!forward-character!backward-character!"
set %motion-c1 &cat %motion-c1 "next-line!previous-line!"
set %motion-c1 &cat %motion-c1 "beginning-of-line!end-of-line!"
set %motion-c2                "!beginning-of-file!end-of-file!"
set %motion-c2 &cat %motion-c2 "end-of-word!previous-word!"
set %motion-c2 &cat %motion-c2 "next-page!previous-page!"

store-procedure position-cursor
; Uses %p-tmp %p-tmp-t %p-tmp-l.
; if %p-gotop make sure we are at top of file. 
; Use arrow, paging keys, mouse, or search to position cursor
; OR type into %p-tmp-t
; Enter terminates it, C-G aborts. 
; %p-tmp-t is not blank, return it in %p-tmp,
; else if $curcol!=0 and $curline!=1 return blank-delimited string 
; (not "word") at current point. If %p-doline get whole line. 
  !if %p-gotop
    set $curcol  0
    set $curline 1
  !endif  
  set %p-tmp ""
  set %p-tmp-t ""
  !while TRUE               ; break out with newline
    print &cat "[Type, or Select, then Enter (^G aborts)]: " %p-tmp-t 
    update-screen
    set %p-tmp &gtcmd
    !if &equ &len %p-tmp 1               ; Then it's a printable character
      set %p-tmp-t &cat %p-tmp-t %p-tmp
    !else
      set %p-tmp &bind %p-tmp              ; translate command
      !if &seq %p-tmp "delete-previous-character" ; delete last character
	set %p-tmp-l &len %p-tmp-t 
	!if &greater %p-tmp-l 0 
	  set %p-tmp-t &mid %p-tmp-t 1 &sub %p-tmp-l 1 
	!endif
      !else
	; print %p-tmp
	!if &seq %p-tmp newline  ; break out with newline 
	  !break
	!endif
	!if &seq %p-tmp abort-command  ; break out with ^G 
	  !break
	!endif
	!if &not &seq %p-tmp ERROR ; if valid command
	  !while TRUE              ; break out if recognized motion key 
				   ; first look for general motion 
	    !if &not &equ 0 &sindex %motion-c1 &cat &cat "!" %p-tmp "!"
	      !force %p-tmp
	      !break
	    !endif
	    !if &not &equ 0 &sindex %motion-c2 &cat &cat "!" %p-tmp "!"
	      !force %p-tmp
	      !break
	    !endif
	    !if &seq %p-tmp [MSleft-down]      ; mouse strokes
	      !force run MSleft-down
	      !break
	    !endif  
	    !if &seq %p-tmp [MSleft-up]
	      !force run MSleft-up
	      !break 
	    !endif  
	    !if &seq %p-tmp search-forward     ; searching 
	      execute-named-command search-forward
	    !endif
	    !if &seq %p-tmp search-reverse
	      execute-named-command search-reverse
	    !endif
	    !break              ; break if we didnt get anything
	  !endwhile             ; test for motion commands
	!endif ; not ERROR
      !endif 
    !endif 
    update-screen
  !endwhile             ; test for return
  !if &seq %p-tmp abort-command ; return nothing if aborted
    set %p-tmp ""
  !else
    !if &greater &len %p-tmp-t 0
      set %p-tmp %p-tmp-t
    !else
     !if &and &equ $curline 1 &equ $curcol 0 
       set %p-tmp ""
     !else
       !if %p-doline  ; copy line 
	 beginning-of-line
	 !while &and &equ &chr $curchar " " &not &equ $curcol $lwidth
	   forward-character
	 !endwhile 
	 set-mark
	 end-of-line
       !else         ; copy word
	 !while &and &not &seq &chr $curchar " " &not &equ $curcol 0  
	   backward-character
	 !endwhile
	 !if &seq &chr $curchar " "
	   forward-character
	 !endif  
	 set-mark
	 !while &and &not &seq &chr $curchar " " &not &equ $curcol $lwidth
	   forward-character 
	 !endwhile
       !endif
       set %p-tmp $region
     !endif
   !endif 
  !endif
  ; print %p-tmp
!endm

store-procedure get-help-word
; uses %h-oldfile, %h-file, %h-buffer
; display file %h-file and return a word using position-cursor
; word is returned in %p-tmp
  set %h-oldfile $cfname
  !if &not &exist &cat %l-file-path %h-file
    print &cat &cat &cat "[No file " %l-file-path %h-file "]"
    set %p-tmp "ERROR"
    !return
  !endif    
  find-file &cat %l-file-path %h-file
  add-mode VIEW
  update-screen 
  run position-cursor
  set %h-buffer $cbufname
  !force find-file %h-oldfile
  !force delete-buffer %h-buffer
!endm

store-procedure l-insert-word 
; Insert command from file %h-file
; If it has a {, position after the first one.
; Used by many of below command, but some have to add things, so
; do similar things themselves.
  run get-help-word
  !if &seq %p-tmp "ERROR"
    !return
  !endif
  set %l-tmp1 %p-tmp
  ; print %l-tmp1
  !if &not &equ &len %l-tmp1 0
    insert-string &cat %l-tmp1
    set %l-tmp2 &sindex %l-tmp1 "{"
    !if &not &equ %l-tmp2 0  
      set %l-tmp3 &sub &len %l-tmp1 %l-tmp2
      !force %l-tmp3 backward-character
    !endif
  !endif
!endm

store-procedure l-env-pair
; uses %l-tmp1, %p-tmp
; create a LaTeX environment from user input
  set %h-file "environ.lh"
  run get-help-word
  !if &seq %p-tmp "ERROR"
    !return
  !endif
  set %l-tmp1 %p-tmp
  !if &not &equ &len %l-tmp1 0
     2 open-line
     insert-string &cat &cat "\begin{" %l-tmp1 "}"
     !if &seq %l-tmp1 "array"
       insert-string  "{lrc}"
     !endif
     !if &seq %l-tmp1 "list"
       insert-string  "{labeling}{spacing}"
     !endif
     !if &seq %l-tmp1 "minipage"
       insert-string  "[pos]{vsize}"
     !endif
     !if &seq %l-tmp1 "picture"
       insert-string  "(x,y)(xl,yl)"
     !endif
     !if &seq %l-tmp1 "tabular"
       insert-string  "{lrc}"
     !endif
     !if &seq %l-tmp1 "thebibliography"
       insert-string  "{99}"
     !endif
     2 next-line
     insert-string &cat &cat "\end{" %l-tmp1 "}"
     previous-line
  !endif
!endm

store-procedure l-heading
; uses %h-file, %l-tmp1, %p-tmp
; create a LaTeX heading from user input
  set %h-file "headings.lh"
  run get-help-word
  !if &seq %p-tmp "ERROR"
    !return
  !endif
  set %l-tmp1 %p-tmp
  ; print %l-tmp1
  !if &not &equ &len %l-tmp1 0
     insert-string &cat &cat "\" %l-tmp1 "{}"
     backward-character
  !endif
!endm

store-procedure l-template
; LaTeX templates
; uses %l-tmp1, %l-tmp2, %h-file, %p-tmp
  set %h-file "ltemp.lh"
  run get-help-word
  !if &seq %p-tmp "ERROR"
    !return
  !endif
  set %l-tmp1 %p-tmp
  !if &not &equ &len %l-tmp1 0
    set %l-tmp1 &cat &cat %l-file-path %l-tmp1 ".lt"
    !if &not &exist %l-tmp1 
      print &cat &cat &cat "[No file " %l-tmp1 "]"
    !else
      set %l-tmp2 $yankflag
      set $yankflag TRUE    ; keep point at start of included file
      insert-file %l-tmp1
      set $yankflag %l-tmp2
    !endif   
  !endif
!endm

store-procedure b-template
; BibTeX templates
; uses %l-tmp1, %l-tmp2, %h-file, %p-tmp
  set %h-file "btemp.lh"
  run get-help-word
  !if &seq %p-tmp "ERROR"
    !return
  !endif
  set %l-tmp1 %p-tmp
  !if &not &equ &len %l-tmp1 0
    set %l-tmp1 &cat &cat %l-file-path %l-tmp1 ".bt"
    !if &not &exist %l-tmp1 
      print &cat &cat &cat "[No file " %l-file-path %l-tmp1 "]"
    !else
      set %l-tmp2 $yankflag
      set $yankflag TRUE    ; keep point at start of included file
      insert-file %l-tmp1
      set $yankflag %l-tmp2
      end-of-line
      backward-character
    !endif   
  !endif
!endm

store-procedure l-misc
; Miscellaneous LaTeX commands
  set %h-file "misc.lh"
  run l-insert-word
!endm

store-procedure l-taccents
; Text accents
  set %h-file "taccents.lh"
  run l-insert-word
!endm

store-procedure l-tspecial
; special sybols
  set %h-file "tspecial.lh"
  run l-insert-word
!endm

store-procedure l-tforeign
; foreign symbols
  set %h-file "tforeign.lh"
  run l-insert-word
!endm

store-procedure l-maccents
; math accents 
  set %h-file "maccents.lh"
  run l-insert-word
!endm

store-procedure l-greek
; greek letters 
  set %h-file "greek.lh"
  run l-insert-word
!endm

store-procedure l-mbinops
; math binary operators
  set %h-file "mbinops.lh"
  run l-insert-word
!endm

store-procedure l-mrel
; math relations
  set %h-file "mrel.lh"
  run l-insert-word
!endm

store-procedure l-marrow
; math arrows
  set %h-file "marrow.lh"
  run l-insert-word
!endm

store-procedure l-mmisc
; math miscellaneous
  set %h-file "mmisc.lh"
  run l-insert-word
!endm

store-procedure l-mloglike
; math loglike
  set %h-file "mloglike.lh"
  run l-insert-word
!endm

store-procedure l-mdelim
; math delimiters
  set %h-file "mdelim.lh"
  run l-insert-word
!endm

store-procedure l-mvarsym
; math variable-sized symbols
  set %h-file "mvarsym.lh"
  run l-insert-word
!endm

store-procedure l-mline
; math overline/underline
  set %h-file "mline.lh"
  run l-insert-word
!endm

store-procedure latex-help
  help-engine &cat %l-file-path latex.hlp
!endm

store-procedure search-latex-help
; uses %s-tmp
; pull keyword off the current file and search help.
; only works for exact match. 
  !force end-of-word
  set-mark
  !force previous-word
  set %s-tmp @&cat &cat "Search Help for [" $region "]: "
  !if &equ &len %s-tmp 0
    set %s-tmp $region
  !endif
  help-engine &cat %l-file-path latex.hlp
  help-engine &cat %l-file-path latex.hlp  %s-tmp
  ; note that there are two parameters to help engine in this case
  print &cat &cat "[Searching help file for " %s-tmp "]"
!endm

store-procedure interface-help
  help-engine &cat %l-file-path "interfac.hlp"
!endm

store-procedure installation-help
  !force find-screen "Installation Help"
  !force find-file &cat %l-file-path mewlatex.txt
  add-mode view
!endm  

store-procedure tex-info
; TeX information files, e.g. FAQ
; You will want to change texinfo.lh for you local setup 
  set %h-file "texinfo.lh"
  run get-help-word
  !if &seq %p-tmp "ERROR"
    !return
  !endif
  !if &not &equ &len %p-tmp 0
    !if &not &exist %p-tmp 
      print &cat &cat "[No file " %p-tmp "]"
    !else
      !force find-screen &cat "Information: "%p-tmp
      !force find-file   %p-tmp
      add-mode view
    !endif   
  !endif
!endm

store-procedure clean-bibitem
; get rid of pairs of quotes from bibTeX item.
; only makes sense for a .bib file.
; NOTE!: assumes the format in the template files, i.e.
; one item per line, and the closing } on an separate line. 
  set $discmd FALSE
  !force search-reverse "@"
  beginning-of-line
  !if &not &sequal "@" &mid $line 1 1
    !return
  !endif
  !while TRUE
    !force next-line
    !if &not $status
      !break
    !endif
    !if &sequal "@" &mid $line 1 1
      !break
    !endif
    !if &not &equ 0 &sindex $line "~"~""
      1 kill-to-end-of-line
      !force previous-line
    !endif
  !endwhile
  !force backward-character
  !if &not $status
    !return
  !endif
  !while &or &seq &chr $curchar " " &seq &chr $curchar "~n" 
    !force backward-character
    !if &not $status
      !return
    !endif
  !endwhile
  !if &not &seq &chr $curchar "}"
    !return
  !endif
  !force backward-character
  !while &or &seq &chr $curchar " " &seq &chr $curchar "~n" 
    !force backward-character
    !if &not $status
      !return
    !endif
  !endwhile
  !if &seq &chr $curchar ","
    delete-next-character
  !endif
  ; clear-message-line
  set $discmd TRUE
!endm

store-procedure clean-bibfile
; run clean-bib-item on whole file
  run query-save-all
  set %l-tmp1 @"Do you really want to clean your entire bibTeX file? [n]: "
  !if &not &sequal &lower %l-tmp1 "y"
     !return 
  !endif
  print "[Cleaning BibTeX file. This may take a while...]"
  set $discmd FALSE
  beginning-of-file
  !while TRUE
    !force search-forward "@"
    !if &not $status
      !break
    !endif
    run clean-bibitem
    ; update-screen
    !force next-line
    end-of-line 
  !endwhile
  beginning-of-file
  open-line
  insert-string "BibFile Cleaned: "
  run insert-date
  print "[Please check this has not messed up your file!]"
  set $discmd TRUE
!endm

store-procedure get-bib-key
; get bibkey from current line, assuming "@name{key," synatax
  set %b-key ""
  !force search-forward "{"
  !if &not $status
    !return
  !endif
  set-mark
  !force end-of-word
  set %b-key $region
  ; print %b-key 
!endm

store-procedure find-min-key
; return %m-key and %m-pos
  set %m-key ""
  set %m-pos 0
  !force search-forward "@"
  !if &not $status
    !return
  !endif
  run get-bib-key
  set %m-key %b-key
  set %m-pos $curline
  !while TRUE
    !force search-forward "@"
    !if &not $status
      !break
    !endif
    run get-bib-key
    !if &sless %b-key %m-key
      set %m-key %b-key
      set %m-pos $curline
    !endif
  !endwhile
  ; print &cat &cat %m-key " " %m-pos
!endm

store-procedure sort-bibfile
; sort a .bib file on the cite key
; uses %s-pos to remember the current position
; works through the file, doing an insertion sort on the  %b-key
;
  run query-save-all
  set %l-tmp1 @"Do you really want to sort your entire bibTeX file? [n]: "
  !if &not &sequal &lower %l-tmp1 "y"
     !return 
  !endif
  print "[Sorting BibTeX file. This may take a while...]"
  set $discmd FALSE
  beginning-of-file
  !while TRUE
    !force search-forward "@"
    !if &not $status
      !break
    !endif
    set %s-pos $curline
    beginning-of-line
    run find-min-key
    ; update-screen
    ; set %dummy @&cat &cat &cat %s-pos " " %m-pos    
    !if &greater %m-pos %s-pos
       goto-line %m-pos
       beginning-of-line
       set-mark
       end-of-line 
       !force search-forward "@"
       !if &not $status
	  end-of-file
       !else 
	  beginning-of-line
       !endif
       kill-region
       goto-line %s-pos
       yank
    !endif
    goto-line %s-pos
    end-of-line
  !endwhile
  beginning-of-file
  open-line
  insert-string "BibFile Sorted:  "
  run insert-date
  print "[Please check this has not messed up your file!]"
  set $discmd TRUE
!endm

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; LaTeX MENU ADDITIONS
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

; help
macro-to-key latex-help        FN1 
macro-to-key search-latex-help FN2

; debug
macro-to-key l-display-log     FN3
macro-to-key l-find-error      FN4

; environment pair
macro-to-key l-env-pair        A-V

; super/subscripts
macro-to-key superscript-b     A-^   ; ^{}
macro-to-key subscript-b       A-_   ; _{}

; delimiter pairs -- you may want to personalize these key-bindings 
macro-to-key curly-b           A-{   ; {}
macro-to-key round-b           A-(   ; ()
macro-to-key square-b          A-[   ; []
macro-to-key angle-b           A-<   ; \langle\rangle
macro-to-key vert-b            A-|   ; ||
macro-to-key d-vert-b          A-\   ; \|\|
macro-to-key quote-b           A-"   ; ``''
macro-to-key slash-curly-b     A-}   ; \{\}
macro-to-key slash-round-b     A-)   ; \(\)
macro-to-key slash-square-b    A-]   ; \{\}
macro-to-key dollar-b          A-$   ; $$
macro-to-key double-dollar-b   ^XA-$ ; $$$$
macro-to-key sizable-curly-b   ^XA-{ ; \left\{\right\}
macro-to-key sizable-square-b  ^XA-[ ; \left[\right]
macro-to-key sizable-round-b   ^XA-( ; \left(\right)
macro-to-key sizable-angle-b   ^XA-< ; \left\langle\right\rangle
macro-to-key sizable-vert-b    ^XA-| ; \left|\right|
macro-to-key sizable-d-vert-b  ^XA-\ ; \left\|\right\|

!if &not %l-menus-loaded
  print "[Setting up LaTeX Menus]"
  macro-to-menu l-template ">&TeX@5>LaTeX &Input>&Templates"
  macro-to-menu l-heading                       "&Headings"
  macro-to-menu l-env-pair                      "En&vironments"

  macro-to-menu dollar-b  ">&TeX>LaTeX &Input>Math E&nvironments@3>$ $"
  macro-to-menu double-dollar-b                                   "$$ $$"
  macro-to-menu slash-round-b                                     "\( \)"
  macro-to-menu slash-square-b                                    "\[ \]"
  

  macro-to-menu curly-b   ">&TeX>LaTeX &Input>&Brackets@4>{ }"
  macro-to-menu slash-curly-b                            "\{ \}"
  macro-to-menu round-b                                  "( )"
  macro-to-menu square-b                                 "[ ]"
  macro-to-menu angle-b                      "\langle \rangle"
  macro-to-menu vert-b                                   "| |"
  macro-to-menu d-vert-b                                 "\| \|"
  macro-to-menu quote-b                                  "`` ''"

  macro-to-menu l-taccents ">&TeX>LaTeX &Input>Te&xt@5>&Accents"
  macro-to-menu l-tspecial                    "&Special Symbols"
  macro-to-menu l-tforeign                    "&Foreign Symbols"

  macro-to-menu superscript-b ">&TeX>LaTeX &Input>&Math@6>&Super/Subscripts>^{}"
  macro-to-menu subscript-b                                          "_{}"
  
  macro-to-menu sizable-curly-b ">&TeX>LaTeX &Input>&Math>Variable &Brackets@1>left\{ \right\}"
  macro-to-menu sizable-round-b                "left( \right)"
  macro-to-menu sizable-square-b               "left[ \right]"
  macro-to-menu sizable-angle-b   "\left\langle \right\rangle"
  macro-to-menu sizable-vert-b                 "left| \right|"
  macro-to-menu sizable-d-vert-b             "left\| \right\|"

  macro-to-menu l-maccents  ">&TeX>LaTeX &Input>&Math>&Accents@2"
  macro-to-menu l-greek                              "&Greek"
  macro-to-menu l-mbinops                            "Binary &Operators"
  macro-to-menu l-mrel                               "&Relation Symbols"
  macro-to-menu l-marrow                             "Arro&ws"
  macro-to-menu l-mmisc                              "&Miscellanous"  
  macro-to-menu l-mloglike                           "&Log Like"
  macro-to-menu l-mdelim                             "&Delimiters"
  macro-to-menu l-mvarsym                            "&Variable Symbols"
  macro-to-menu l-mline                              "Over/&Under Line"
  
  macro-to-menu l-misc     ">&TeX>LaTeX &Input>Mis&cellaneous@7"  

  macro-to-menu b-template ">&TeX>&BibTeX Input@1>&Templates"
  macro-to-menu clean-bibitem                     "Clean Bib&Item"
  macro-to-menu clean-bibfile                     "Clean Bib&File"
  macro-to-menu sort-bibfile                      "&Sort BibFile"

  macro-to-menu run-latex ">&TeX>E&xecute@2>&LaTeX"
  macro-to-menu run-tex                    "&TeX"
  macro-to-menu view-latex                 "&View"
  macro-to-menu dvi2ps-latex               "&DVI to PostScript"
  macro-to-menu psview-latex               "Post&Script Preview"
  macro-to-menu print-latex                "&Print"
  macro-to-menu run-bibtex                 "&BibTeX"
  macro-to-menu run-makeindex              "&MakeIndex"
  macro-to-menu clear-latex-file           "&Clear Filename"

  macro-to-menu l-display-log ">&TeX>&Debug@3>&Read Logfile"
  macro-to-menu l-find-error                 "&Find Next Error"

  macro-to-menu latex-help ">&TeX>&Help@4>&LaTeX Commands"
  macro-to-menu search-latex-help        "&Search LaTeX Commands"
  macro-to-menu view-charset             "&Character Set"
  macro-to-menu tex-info                 "&TeX Information"
  macro-to-menu interface-help           "&MicroEMACS Interface"
  macro-to-menu installation-help        "MicroEMACS I&nstallation"
!endif

set %l-menus-loaded "TRUE" ; so menu commands are only done once.
print "[LaTeX Interface Loaded]"
set $discmd TRUE
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;