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authordos-reis <gdr@axiomatics.org>2007-09-20 04:57:39 +0000
committerdos-reis <gdr@axiomatics.org>2007-09-20 04:57:39 +0000
commitc75b5923cb35d83910e45f13e9d15c981ea25387 (patch)
treea6c3a03b1ac5fef72e01fe1d60873d277222a52b /src/interp/pspad1.boot.pamphlet
parent516d3e4928185c380ffee8249454fe76ab6f2851 (diff)
downloadopen-axiom-c75b5923cb35d83910e45f13e9d15c981ea25387.tar.gz
remove pamphlets - part 7
Diffstat (limited to 'src/interp/pspad1.boot.pamphlet')
-rw-r--r--src/interp/pspad1.boot.pamphlet767
1 files changed, 0 insertions, 767 deletions
diff --git a/src/interp/pspad1.boot.pamphlet b/src/interp/pspad1.boot.pamphlet
deleted file mode 100644
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--- a/src/interp/pspad1.boot.pamphlet
+++ /dev/null
@@ -1,767 +0,0 @@
-\documentclass{article}
-\usepackage{axiom}
-
-\title{\File{src/interp/pspad1.boot} Pamphlet}
-\author{The Axiom Team}
-
-\begin{document}
-\maketitle
-\begin{abstract}
-\end{abstract}
-\eject
-\tableofcontents
-\eject
-
-\section{License}
-
-<<license>>=
--- Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd.
--- All rights reserved.
---
--- Redistribution and use in source and binary forms, with or without
--- modification, are permitted provided that the following conditions are
--- met:
---
--- - Redistributions of source code must retain the above copyright
--- notice, this list of conditions and the following disclaimer.
---
--- - Redistributions in binary form must reproduce the above copyright
--- notice, this list of conditions and the following disclaimer in
--- the documentation and/or other materials provided with the
--- distribution.
---
--- - Neither the name of The Numerical ALgorithms Group Ltd. nor the
--- names of its contributors may be used to endorse or promote products
--- derived from this software without specific prior written permission.
---
--- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
--- IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
--- TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
--- PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
--- OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
--- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
--- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
--- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
--- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
--- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
--- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-@
-<<*>>=
-<<license>>
-
-)package "BOOT"
-
-$escapeWords := ["always", "assert", "but", "define",
- "delay", "do", "except", "export", "extend", "fix", "fluid",
- "from", "generate", "goto", "import", "inline", "never", "select",
- "try", "yield"]
-$pileStyle := false
-$commentIndentation := 8
-$braceIndentation := 8
-$doNotResetMarginIfTrue := true
-$marginStack := nil
-$numberOfSpills := 0
-$lineFragmentBuffer:= nil
-$pspadRelationAlist := '((_= . _~_=) (_< . _>_=) (_<_= . _>)(_~_= . _=)(_>_= . _<) (_> . _<_=))
-$lineBuffer := nil
-$formatForcePren := nil
-$underScore := char ('__)
-$rightBraceFlag := nil
-$semicolonFlag := nil
-$newLineWritten := nil
-$comments := nil
-$noColonDeclaration := false
-$renameAlist := '(
- (SmallInteger . SingleInteger)
- (SmallFloat . DoubleFloat)
- (Void . _(_))
- (xquo . exquo)
- (setelt . set_!)
- (_$ . _%)
- (_$_$ . _$)
- (_*_* . _^)
- (_^_= . _~_=)
- (_^ . _~))
-
---$opRenameAlist := '(
--- (and . AND)
--- (or . OR)
--- (not . NOT))
-
-
---======================================================================
--- Main Translator Function
---======================================================================
---% lisp-fragment to boot-fragment functions
-lisp2Boot x ==
- --entry function
- $fieldNames := nil
- $pilesAreOkHere: local:= true
- $commentsToPrint: local:= nil
- $lineBuffer: local
- $braceStack: local := nil
- $marginStack: local:= [0]
- --$autoLine is true except when inside a try---if true, lines are allowed to break
- $autoLine:= true
- $lineFragmentBuffer:= nil
- $bc:=0 --brace count
- $m:= 0
- $c:= $m
- $numberOfSpills:= 0
- $lineLength:= 80
- format x
- formatOutput REVERSE $lineFragmentBuffer
- [fragmentsToLine y for y in REVERSE $lineBuffer]
-
-fragmentsToLine fragments ==
- string:= lispStringList2String fragments
- line:= GETSTR 240
- for i in 0..MAXINDEX string repeat line:= SUFFIX(string.i,line)
- line
-
-lispStringList2String x ==
- null x => '""
- atom x => STRINGIMAGE x
- CDR x => APPLY(function STRCONC,MAPCAR(function lispStringList2String,x))
- lispStringList2String CAR x
-
---% routines for buffer and margin adjustment
-
-formatOutput x ==
- for [currentColumn,start,end,stack] in REVERSE $commentsToPrint repeat
- startY:= rest start
- for [loc,comment] in stack repeat
- commentY:= rest loc
- gap:= startY-commentY
- gap>0 => before:= [[commentY,first loc,gap,comment],:before]
- gap=0 => same:= [[startY,1,gap,comment],:same]
- true => after:= [[startY,first loc,-gap,comment],:after]
- if before then putOut before
- if same then
- [y,:extraLines]:= "append"/[mkCommentLines u for u in orderList same]
- line:= fragmentsToLine x
- x:=
- #line+#y>$lineLength =>
- (y:= STRCONC(nBlanks $m,y); extraLines:= [y,:extraLines]; x)
- [line,y]
- consLineBuffer x
- for y in extraLines repeat consLineBuffer LIST y
- if after then putOut after
- $commentsToPrint:= nil
-
-consLineBuffer x == $lineBuffer := [x,:$lineBuffer]
-
-putOut x ==
- eject ("min"/[gap for [.,.,gap,:.] in x])
- for u in orderList x repeat addComment u
-
-eject n == for i in 2..n repeat consLineBuffer nil
-
-addComment u ==
- for x in mkCommentLines u repeat consLineBuffer LIST x
-
-mkCommentLines [.,n,.,s] ==
- lines:= breakComments s
- lines1:= [fragmentsToLine [nBlanks n,"_{",first lines],:rest lines]
- [:l,last]:= lines1
- [:l,fragmentsToLine [last,"_}"]]
-
-breakComments s ==
- n:= containsString(s,PNAME "ENDOFLINECHR") =>
- #s>n+12 => [SUBSTRING(s,0,n),:breakComments SUBSTRING(s,n+12,NIL)]
- LIST SUBSTRING(s,0,n)
- LIST s
-
-containsString(x,y) ==
- --if string x contains string y, return start index
- for i in 0..MAXINDEX x-MAXINDEX y repeat
- and/[x.(i+j)=y.j for j in 0..MAXINDEX y] => return i
-
---======================================================================
--- Character/String Buffer Functions
---======================================================================
-consBuffer item ==
- if item = '"failed" then item := 'failed
- n:=
- STRINGP item => 2+#item
- IDENTP item => #PNAME item
- #STRINGIMAGE item
- columnsLeft:= $lineLength-$c
- if columnsLeft <= 0 and isCloseDelimiter item then $lineLength := $lineLength + 2
- columnsLeft:= $lineLength-$c
- --cheat for semicolons, strings, and delimiters: they are NEVER too long
- not isSpecialBufferItem item and (n>columnsLeft or columnsLeft < 0) =>
- $autoLine =>
- --is true except within try
- formatOutput REVERSE $lineFragmentBuffer
- $c:= REMAINDER($m+2*($numberOfSpills:= $numberOfSpills+1), $lineLength)
- $lineFragmentBuffer:= LIST nBlanks $c
- consBuffer item
- nil
- $lineFragmentBuffer:=
- ^item or IDENTP item => [PNAME item,:$lineFragmentBuffer]
- NUMBERP item or CHARP item => [STRINGIMAGE item,:$lineFragmentBuffer]
- STRINGP item => ["_"",string2PrintImage item,"_"",:$lineFragmentBuffer]
- sayBrightly ['"Unexpected line buffer item: ", STRINGIMAGE item]
- $lineFragmentBuffer
- $rightBraceFlag := item = "}"
- $semicolonFlag := item = "; " --prevents consecutive semicolons
- $c:= $c+n
-
-isSpecialBufferItem item ==
- item = "; " or STRINGP item => true
- false
-
-isCloseDelimiter item == EQ(item,")") or EQ(item,"]") or EQ(item,"}")
-
---======================================================================
--- Formatting/Line Control Functions
---======================================================================
-newLine() ==
- null $autoLine => nil
- $newLineWritten := true
- formatOutput REVERSE $lineFragmentBuffer
- $lineFragmentBuffer:= LIST nBlanks $m
- $c:= $m
-
-optNewLine() ==
- $newLineWritten => newLine()
- $c
-
-spillLine() ==
- null $autoLine => nil
- formatOutput REVERSE $lineFragmentBuffer
- $c:= $m+2*($numberOfSpills:= $numberOfSpills+1)
- $lineFragmentBuffer:= LIST nBlanks $c
- $c
-
-indent() ==
- $m:= $m+2*($numberOfSpills+1)
- $marginStack:= [$m,:$marginStack]
- $numberOfSpills:= 0
- $m
-
-undent() ==
--- $doNotResetMarginIfTrue=true =>
--- pp '"hoho"
--- $c
- $marginStack is [m,:r] =>
- $marginStack := r
- $m := m
- 0
-
-spill(fn,a) ==
- u := try FUNCALL(fn,a) => u
- (nearMargin() or spillLine()) and FUNCALL(fn,a)
-
-formatSpill(fn,a) ==
- u := try FUNCALL(fn,a) => u
- v := (stay:= nearMargin() or indent() and newLine()) and FUNCALL(fn,a)
- w := stay or undent()
- v and w
-
-formatSpill2(fn,f,a) ==
- u := try FUNCALL(fn,f,a) => u
- v := (stay:= nearMargin() or indent() and newLine()) and FUNCALL(fn,f,a)
- w := stay or undent()
- v and w
-
-nearMargin() ==
- $c=$m or $c=$m+1 => $c
-
---======================================================================
--- Main Formatting Functions
---======================================================================
-format(x,:options) ==
- oldC:= $c
- qualification := IFCAR options
- newCOrNil:=
- x is [op,:argl] =>
- if op = 'return then argl := rest argl
- n := #argl
- op is ['elt,y,"construct"] => formatDollar(y,'construct,argl)
- op is ['elt,name,p] and UPPER_-CASE_-P (STRINGIMAGE opOf name).0 =>
- formatDollar(name,p,argl)
- op = 'elt and UPPER_-CASE_-P (STRINGIMAGE opOf CAR argl).0 =>
- formatDollar1(CAR argl,CADR argl)
- fn:= GETL(op,"PSPAD") => formatFn(fn,x,$m,$c)
- if MEMQ(op,'(AND OR NOT)) then op:= DOWNCASE op
- n=1 and GETL(op,'Nud) and (lbp:= formatOpBindingPower(op,"Nud","left")) =>
- formatPrefix(op,first argl,lbp,formatOpBindingPower(op,"Nud","right"),qualification)
- n=2 and (op = '_$ or getOp(op,'Led)) and (lbp:= formatOpBindingPower(op,"Led","left")) =>
- formatInfix(op,argl,lbp,formatOpBindingPower(op,"Led","right"),qualification)
- formatForm x
- formatAtom x
- null newCOrNil => ($c:= oldC; nil)
- null FIXP newCOrNil => error()
- $c:= newCOrNil
-
-
-getOp(op,kind) ==
- kind = 'Led =>
- MEMQ(op,'(_div _exquo)) => nil
- GET(op,'Led)
- GET(op,'Nud)
-
-formatDollar(name,p,argl) ==
- name := markMacroTran name
- n := #argl
- kind := (n=1 => "Nud"; "Led")
- IDENTP name and GETL(p,kind) => format([p,:argl],name)
- formatForcePren [p,:argl] and
- (try (format "$$" and formatForcePren name)
- or (indent() and format "$__" and formatForcePren name and undent()))
-
-formatMacroCheck name ==
- ATOM name => name
- u := or/[x for [x,:y] in $globalMacroStack | y = name] => u
- u := or/[x for [x,:y] in $localMacroStack | y = name] => u
- [op,:argl] := name
- MEMQ(op,'(Record Union)) =>
- pp ['"Cannot find: ",name]
- name
- [op,:[formatMacroCheck x for x in argl]]
-
-formatDOLLAR ['DOLLAR,x,y] == formatDollar1(y, x)
-
-formatDollar1(name,arg) ==
- id :=
- IDENTP name => name
- name is [p] and GETL(p,'NILADIC) => p
- name
- format arg and format "$$" and formatForcePren id
-
-
-formatForcePren x ==
- $formatForcePren: local := true
- format x
-
-formatAtom(x,:options) ==
- if u := LASSOC(x,$renameAlist) then x := u
- null x or isIdentifier x =>
- if MEMQ(x,$escapeWords) then
- consBuffer $underScore
- consBuffer ident2PrintImage PNAME x
- consBuffer x
-
-formatFn(fn,x,$m,$c) == FUNCALL(fn,x)
-
-formatFree(['free,:u]) ==
- format 'free and format " " and formatComma u
-
-formatUnion(['Union,:r]) ==
- $count : local := 0
- formatFormNoColonDecl formatTestForPartial ['Union,:[fn x for x in r]] where fn x ==
- x is [":",y,'Branch] => fn STRINGIMAGE y
- STRINGP x => [":", INTERN x, ['Enumeration,x]]
- x is [":",:.] => x
- tag := INTERN STRCONC("value",STRINGIMAGE ($count := $count + 1))
- [":", tag, x]
-
-formatTestForPartial u ==
- u is ['Union,a,b] and b is [":","failed",:.] and a is [":",.,S] =>
- ['Partial, S]
- u
-
-formatEnumeration(y is ['Enumeration,:r]) ==
- r is [x] => format "'" and format INTERN STRINGIMAGE x and format "'"
- formatForm y
-
-formatRecord(u) == formatFormNoColonDecl u
-
-formatFormNoColonDecl u ==
- $noColonDeclaration: local := true
- formatForm u
-
-formatElt(u) ==
- u is ["elt",a,b] => formatApplication rest u
- formatForm u
-
-formatForm (u) ==
- [op,:argl] := u
- if MEMQ(op, '(Record Union)) then
- $fieldNames := union(getFieldNames argl,$fieldNames)
- MEMQ(op,'((QUOTE T) true)) => format "true"
- MEMQ(op,'(false nil)) => format op
- u='(Zero) => format 0
- u='(One) => format 1
- 1=#argl => formatApplication u
- formatFunctionCall u
-
-formatFunctionCall u ==
- $pilesAreOkHere: local
- spill("formatFunctionCall1",u)
-
-formatFunctionCall1 [op,:argl] ==
---null argl and getConstructorProperty(op,'niladic) => formatOp op
- null argl =>
- GETL(op,'NILADIC) => formatOp op
- formatOp op and format "()"
- formatOp op and formatFunctionCallTail argl
-
-formatFunctionCallTail argl == format "_(" and formatComma argl and format "_)"
-
-formatComma argl ==
- format first argl and (and/[format "," and formatCut x for x in rest argl]) and $c
-
-formatOp op ==
- atom op => formatAtom op
- formatPren op
-
-formatApplication u ==
- [op,a] := u
- MEMQ(a, $fieldNames) => formatSelection u
- atom op =>
- formatHasDotLeadOp a => formatOpPren(op,a)
- formatApplication0 u
- formatSelection u
-
-formatHasDotLeadOp u ==
- u is [op,:.] and (op = "." or not atom op)
-
-formatApplication0 u ==
---format as f(x) as f x if possible
- $pilesAreOkHere: local
- formatSpill("formatApplication1",u)
-
-formatApplication1 u ==
- [op,x] := u
- formatHasDollarOp x or $formatForcePren or
- pspadBindingPowerOf("left",x) < 1000 => formatOpPren(op,x)
- try (formatOp op and format " ") and
- (try formatApplication2 x or
- format "(" and formatApplication2 x and format ")")
-
-formatHasDollarOp x ==
- x is ["elt",a,b] and isTypeProbably? a
-
-isTypeProbably? x ==
- IDENTP x and UPPER_-CASE_-P (PNAME x).0
-
-formatOpPren(op,x) == formatOp op and formatPren x
-
-formatApplication2 x ==
- leadOp :=
- x is [['elt,.,y],:.] => y
- opOf x
- MEMQ(leadOp,'(COLLECT LIST construct)) or
- pspadBindingPowerOf("left",x)<1000 => formatPren x
- format x
-
-formatDot ["dot",a,x] ==
- try (formatOp a and format ".") and
- ATOM x => format x
- formatPren x
-
-formatSelection u ==
- $pilesAreOkHere: local
- formatSpill("formatSelection1",u)
-
-formatSelection1 [f,x] == formatSelectionOp f and format "." and
- ATOM x => format x
- formatPren x
-
-formatSelectionOp op ==
- op is [f,.] and not GET(f,'Nud) or
- 1000 < pspadBindingPowerOf("right",op) => formatSelectionOp1 op
- formatPren1("formatSelectionOp1",op)
-
-formatSelectionOp1 f ==
- f is [op,:argl] =>
- argl is [a] =>
- not ATOM op and ATOM a => formatSelection1 [op,a]
- formatPren f
- format f
- formatOp f
-
-formatPren a ==
- $pilesAreOkHere: local
- formatSpill("formatPrenAux",a)
-
-formatPrenAux a == format "_(" and format a and format "_)"
-
-formatPren1(f,a) ==
- $pilesAreOkHere: local
- formatSpill2("formatPren1Aux",f,a)
-
-formatPren1Aux(f,a) == format "_(" and FUNCALL(f,a) and format "_)"
-
-formatLeft(fn,x,op,key) ==
- lbp:= formatOpBindingPower(op,key,"left")
- formatOpBindingPower(opOf x,key,"right")<lbp => formatPren1(fn,x)
- FUNCALL(fn,x)
-
-formatRight(fn,x,op,key) ==
- --are there exceptional cases where piles are ok?
- x is ['LET,:.] => FUNCALL(fn,x)
- --decide on basis of binding power whether prens are needed
- rbp := formatOpBindingPower(op,key,"right")
- lbp := formatOpBindingPower(opOf x,key,"left")
- lbp < rbp => formatPren1(fn,x)
- FUNCALL(fn,x)
-
-formatCut a == formatSpill("format",a)
-
---======================================================================
--- Prefix/Infix Operators
---======================================================================
-formatPrefix(op,arg,lbp,rbp,:options) ==
- qualification := IFCAR options
- $pilesAreOkHere: local
- formatPrefixOp(op,qualification) and
- (rbp>formatGetBindingPowerOf("left",arg) => formatPren arg; format arg)
-
-formatPrefixOp(op,:options) ==
- qualification := IFCAR options
- op=char '" " => format " ="
- qualification or GET(op,"Nud") and ^MEMQ(op,$spadTightList) =>
- formatQual(op,qualification) and format " "
- format op
-
-formatQual(op,D) ==
- null D => format op
- format op and format "$$" and format D
-
-formatInfix(op,[a,b],lbp,rbp,:options) ==
- qualification := IFCAR options
- $pilesAreOkHere: local
- (if formatGetBindingPowerOf("right",a)<lbp then formatPren a else format a) and
- formatInfixOp(op,qualification) and (if rbp>formatGetBindingPowerOf("left",b)
- then formatPren b else format b)
-
-formatGetBindingPowerOf(leftOrRight,x) ==
--- this function is nearly identical with getBindingPowerOf
--- leftOrRight = "left" => 0
--- 1
- pspadBindingPowerOf(leftOrRight,x)
-
-pspadBindingPowerOf(key,x) ==
- --binding powers can be found in file NEWAUX LISP
- x is ['REDUCE,:.] => (key='left => 130; key='right => 0)
- x is ["REPEAT",:.] => (key="left" => 130; key="right" => 0)
- x is ["COND",:.] => (key="left" => 130; key="right" => 0)
- x is [op,:argl] =>
- if op is [a,:.] then op:= a
- op = 'SLASH => pspadBindingPowerOf(key,["/",:argl]) - 1
- op = 'OVER => pspadBindingPowerOf(key,["/",:argl])
- (n:= #argl)=1 =>
- key="left" and (m:= pspadOpBindingPower(op,"Nud","left")) => m
- key="right" and (m:= pspadOpBindingPower(op,"Nud","right")) => m
- 1000
- n>1 =>
- key="left" and (m:= pspadOpBindingPower(op,"Led","left")) => m
- key="right" and (m:= pspadOpBindingPower(op,"Led","right")) => m
- op="ELT" => 1002
- 1000
- 1000
- 1002
-
-pspadOpBindingPower(op,LedOrNud,leftOrRight) ==
- if op in '(SLASH OVER) then op := "/"
- MEMQ(op,'(_:)) and LedOrNud = 'Led =>
- leftOrRight = 'left => 195
- 196
- exception:=
- leftOrRight="left" => 0
- 105
- bp:=
- leftOrRight="left" => leftBindingPowerOf(op,LedOrNud)
- rightBindingPowerOf(op,LedOrNud)
- bp^=exception => bp
- 1000
-
-formatOpBindingPower(op,key,leftOrRight) ==
- if op in '(SLASH OVER) then op := "/"
- op = '_$ => 1002
- MEMQ(op,'(_:)) and key = 'Led =>
- leftOrRight = 'left => 195
- 196
- MEMQ(op,'(_^_= _>_=)) => 400
- op = "not" and key = "Nud" =>
- leftOrRight = 'left => 1000
- 1001
- GETL(op,key) is [.,.,:r] =>
- leftOrRight = 'left => KAR r or 0
- KAR KDR r or 1
- 1000
-
-formatInfixOp(op,:options) ==
- qualification := IFCAR options
- qualification or
- (op ^= '_$) and ^MEMQ(op,$spadTightList) => format " " and formatQual(op,qualification) and format " "
- format op
-
---======================================================================
--- Special Handlers: DEF forms
---======================================================================
-
-formatDEF def == formatDEF0(def,$DEFdepth + 1)
-
-formatDEF0(["DEF",form,tlist,sclist,body],$DEFdepth) ==
- if not MEMQ(KAR form,'(Exports Implementation)) then
- $form :=
- form is [":",a,:.] => a
- form
- con := opOf $form
- $comments: local := SUBST('_$,'_%,GETDATABASE(con,'DOCUMENTATION))
- $abb :local := constructor? opOf $form
- if $DEFdepth < 2 then
- condoc := (u := LASSOC('constructor,$comments)) and KDR KAR u or ['""]
- $numberOfSpills := -1
- consComments(condoc,'"+++ ")
- form := formatDeftranForm(form,tlist)
- u := ["DEF",form,tlist,sclist,body]
- v := formatDEF1 u => v
- $insideDEF: local := $DEFdepth > 1
- $DEFdepth = 1 =>
- exname := 'Exports
- impname := 'Implementation
- form is [":",.,=exname] or body = impname => nil
- exports :=
- form is [":",a,b] =>
- form := a
- [["MDEF",exname,'(NIL),'(NIL),b]]
- nil
- [op,:argl] := form
--- decls := [x for x in argl | x is [":",:.]]
--- form := [op,:[(a is [":",b,t] => b; a) for a in argl]]
--- $DEFdepth := $DEFdepth - 1
- formatWHERE(["where",
- ["DEF",[":",form,exname],[nil for x in form],sclist,impname],
- ['PROGN,:exports,["MDEF",impname,'(NIL),'(NIL),body]]])
- $insideTypeExpression: local := true
- body := formatDeftran(body,false)
- body is ["add",a,:b] => formatAddDef(form,a,b)
---body is ["with",a,:b] => formatWithDef(form,a,b)
- tryBreakNB(format form and format " == ",body,"==","Led")
-
-formatDEF1 ["DEF",form,tlist,b,body] ==
- $insideDEF: local := $DEFdepth > 1
- $insideEXPORTS: local := form = 'Exports
- $insideTypeExpression: local := true
- form := formatDeftran(form,false)
- body := formatDeftran(body,false)
- ---------> terrible, hideous, but temporary, hack
- if not $insideDEF and body is ['SEQ,:.] then body := ["add", body]
- prefix := (opOf tlist = 'Category => "define "; nil)
- body is ["add",a,b] => formatAddDef(form,a,b)
- body is ["with",a,:b] => formatWithDef(form,a,b,"==",prefix)
- prefix =>
- tryBreak(format prefix and format form and format " == ",body,"==","Led")
- tryBreak(format form and format " == ",body,"==","Led")
-
-formatDefForm(form,:options) ==
- prefix := IFCAR options
- $insideTypeExpression : local := true
- form is [":",form1,["with",a,:b]] => formatWithDef(form1,a,b,":",prefix)
- prefix => format prefix and format form
- format form
-
-formatAddDef(form,a,b) ==
- $insideCAPSULE : local := true
- $insideDEF : local := false
- formatDefForm form or return nil
- $marginStack := [0]
- $m := $c := 0
- $insideTypeExpression : local := false
- cap := (b => b; "")
- tryBreakNB(newLine() and format "== " and formatLeft("format",a,"add","Led")
- and format " add ", cap,"add","Led")
-
-formatWithDef(form,a,b,separator,:options) ==
- prefix := IFCAR options
- $insideEXPORTS : local := true
- $insideCAPSULE : local := true
- $insideDEF : local := false
- $insideTypeExpression : local := false
- a1 := formatWithKillSEQ a
- b => tryBreakNB(formatDefForm(form,prefix) and format separator and format " with " and formatLeft("format",a,"with","Led")
- and format " with ",first b,"with","Led")
- tryBreak(formatDefForm(form,prefix) and format separator and format " with ",a1,"with","Nud")
-
-formatWithKillSEQ x ==
- x is ['SEQ,['exit,.,y]] => ['BRACE, y]
- x
-
-formatBrace ['BRACE, x] == format "{" and format x and format "}"
-
-formatWith ["with",a,:b] ==
- $pilesAreOkHere: local := true
- b =>
- tryBreakNB(formatLeft("format",a,"with","Led") and format " with ",first b,"with","Led")
- tryBreak(format "with ",a,"with","Nud")
-
-formatWithDefault ["withDefault",a,b] ==
- if a is ['with,:init,["SEQ",:items,["exit",.,x]]] then
- part2 := ["SEQ",:items,x,["exit", nil,["defaultDefs", b]]]
- if IFCAR init then
- a:= IFCAR init
- b:= [part2]
- else
- a := part2
- b := nil
- $pilesAreOkHere: local := true
- b =>
- tryBreakNB(formatLeft("format",a,"with","Led") and format " with ",first b,"with","Led")
- tryBreak(format "with ",a,"with","Nud")
-
-formatDefaultDefs ["default",a, :b] ==
- $insideCAPSULE : local := true
- $insideDEF : local := false
- $insideTypeExpression : local := false
- b =>
- tryBreak(formatLeft("format",a,"default","Led") and
- format " default ", first b,"default","Led")
- tryBreak(format "default ",a,"default","Nud")
---format "add " and formatRight("formatPreferPile",a,"add","Nud") --==> brace
-
-formatAdd ["add",a,:b] ==
- $insideCAPSULE : local := true
- $insideDEF : local := false
- $insideTypeExpression : local := false
- b =>
- tryBreakNB(formatLeft("format",a,"and","Led") and
- format " and ", first b,"and","Led")
- tryBreakNB(format "add ",a,"and","Nud")
---format "add " and formatRight("formatPreferPile",a,"add","Nud") --==> brace
-
-formatMDEF ["MDEF",form,.,.,body] ==
- form is '(Rep) => formatDEF ["DEF",form,.,.,body]
- $insideEXPORTS: local := form = 'Exports
- $insideTypeExpression: local := true
- body := formatDeftran(body,false)
- name := opOf form
- tryBreakNB(format name and format " ==> ",body,"==","Led")
- and ($insideCAPSULE and $c or format(";"))
-
-insideCat() == $insideCategoryIfTrue and not $insideFunctorIfTrue
- or $noColonDeclaration
-
-formatImport ["import",a] ==
- addFieldNames a
- addFieldNames macroExpand(a,$e)
- format "import from " and formatLocal1 a
-
-addFieldNames a ==
- a is [op,:r] and MEMQ(op,'(Record Union)) =>
- $fieldNames := union(getFieldNames r,$fieldNames)
- a is ['List,:b] => addFieldNames b
- nil
-
-getFieldNames r ==
- r is [[":",a,b],:r] => [a,:getFieldNames r]
- nil
-
-formatLocal ["local",a] == format "local " and formatLocal1 a
-
-formatLocal1 a ==
- $insideTypeExpression: local := true
- format a
-
-@
-\eject
-\begin{thebibliography}{99}
-\bibitem{1} nothing
-\end{thebibliography}
-\end{document}