Initial population.

1 files changed, 164 insertions, 0 deletions

diff --git a/src/interp/serror.boot.pamphlet b/src/interp/serror.boot.pamphlet
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+\documentclass{article}
+\usepackage{axiom}
+\begin{document}
+\title{\$SPAD/src/interp serror.boot}
+\author{The Axiom Team}
+\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>>
+
+--% Functions to handle specific errors (mostly syntax)
+ 
+)package "BOOT"
+
+syGeneralErrorHere() ==
+   sySpecificErrorHere('S2CY0002, [])
+ 
+sySpecificErrorHere(key, args) ==
+   sySpecificErrorAtToken($stok, key, args)
+ 
+sySpecificErrorAtToken(tok, key, args) ==
+   pos := tokPosn tok
+   ncSoftError(pos, key, args)
+ 
+syIgnoredFromTo(pos1, pos2) ==
+  if pfGlobalLinePosn pos1 = pfGlobalLinePosn pos2 then
+      ncSoftError(FromTo(pos1,pos2), 'S2CY0005, [])
+  else
+      ncSoftError(From pos1, 'S2CY0003, [])
+      ncSoftError(To   pos2, 'S2CY0004, [])
+ 
+npMissingMate(close,open)==
+   ncSoftError(tokPosn open, 'S2CY0008, [])
+   npMissing close
+ 
+npMissing s==
+   ncSoftError(tokPosn $stok,'S2CY0007, [PNAME s])
+   THROW("TRAPPOINT","TRAPPED")
+ 
+npCompMissing s == npEqKey s or npMissing s
+ 
+pfSourceStok x==
+       if pfLeaf? x
+       then x
+       else if null pfParts x
+            then 'NoToken
+            else pfSourceStok pfFirst x
+ 
+npTrapForm(x)==
+   a:=pfSourceStok x
+   EQ(a,'NoToken)=>
+         syGeneralErrorHere()
+         THROW("TRAPPOINT","TRAPPED")
+   ncSoftError(tokPosn a, 'S2CY0002, [])
+   THROW("TRAPPOINT","TRAPPED")
+ 
+npTrap()==
+   ncSoftError(tokPosn $stok,'S2CY0002,[])
+   THROW("TRAPPOINT","TRAPPED")
+ 
+npRecoverTrap()==
+  npFirstTok()
+  pos1 := tokPosn $stok
+  npMoveTo 0
+  pos2 := tokPosn $stok
+  syIgnoredFromTo(pos1, pos2)
+  npPush [pfWrong(pfDocument ['"pile syntax error"],pfListOf [])]
+ 
+ 
+npListAndRecover(f)==
+   a:=$stack
+   b:=nil
+   $stack:=nil
+   done:=false
+   c:=$inputStream
+   while not done repeat
+     found:=CATCH("TRAPPOINT",APPLY(f,nil))
+     if found="TRAPPED"
+     then
+        $inputStream:=c
+        npRecoverTrap()
+     else if not found
+          then
+            $inputStream:=c
+            syGeneralErrorHere()
+            npRecoverTrap()
+     if npEqKey "BACKSET"
+     then
+        c:=$inputStream
+     else if npEqPeek "BACKTAB"
+          then
+             done:=true
+          else
+            $inputStream:=c
+            syGeneralErrorHere()
+            npRecoverTrap()
+            if npEqPeek "BACKTAB"
+            then done:=true
+            else
+                npNext()
+                c:=$inputStream
+     b:=cons(npPop1(),b)
+   $stack:=a
+   npPush NREVERSE b
+ 
+npMoveTo n==
+      if null $inputStream
+      then true
+      else
+           if npEqPeek "BACKTAB"
+           then if n=0
+                then true
+                else (npNext();npMoveTo(n-1))
+           else if npEqPeek "BACKSET"
+                then if n=0
+                     then true
+                     else (npNext();npMoveTo n)
+                 else if npEqKey "SETTAB"
+                      then npMoveTo(n+1)
+                      else (npNext();npMoveTo n)
+@
+\eject
+\begin{thebibliography}{99}
+\bibitem{1} nothing
+\end{thebibliography}
+\end{document}