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-- Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd.
-- All rights reserved.
-- Copyright (C) 2007-2010, Gabriel Dos Reis.
-- 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.
import g_-util
namespace BOOT
module i_-util
--%
$intTopLevel ==
"top__level"
--% The function for making prompts
inputPrompt str ==
-- replaces older INPUT-PROMPT
atom (x := $SCREENSIZE()) => NIL
p := first(x) - 2
y := $OLDLINE
SETQ($OLDLINE,NIL)
y => _$SHOWLINE(strconc(str,EBCDIC 19,y),p)
0 = SIZE str => NIL
_$SHOWLINE(strconc(str,EBCDIC 19),p)
protectedPrompt(:p) ==
[str,:br] := p
0 = SIZE str => inputPrompt str
msg := EBCDIC 29 -- start of field
msg :=
if br then strconc(msg,EBCDIC 232) -- bright write protect
else strconc(msg,EBCDIC 96) -- write protect
msg := strconc(msg,str,EBCDIC 29,EBCDIC 64) -- unprotect again
inputPrompt msg
MKPROMPT() ==
$inputPromptType = 'none => '""
$inputPromptType = 'plain => '"-> "
$inputPromptType = 'step =>
strconc('"(",STRINGIMAGE $IOindex,'") -> ")
$inputPromptType = 'frame =>
strconc(STRINGIMAGE $interpreterFrameName,
'" (",STRINGIMAGE $IOindex,'") -> ")
strconc(STRINGIMAGE $interpreterFrameName,
'" [", SUBSTRING(CURRENTTIME(),8,NIL),'"] [",
STRINGIMAGE $IOindex, '"] -> ")
printPrompt(flush? == false) ==
PRINC(MKPROMPT(), $OutputStream)
if flush? then
FORCE_-OUTPUT $OutputStream
++ Return the name of a text editor, if possible.
textEditor() ==
prog := getEnv '"EDITOR" => prog
# $EditorProgram ~= 0 => $EditorProgram
%hasFeature KEYWORD::WIN32 => '"notepad"
throwKeyedMsg("S2IZ0091",nil)
--% Miscellaneous
$ZeroVecCache := nil
Zeros n ==
#$ZeroVecCache = n => $ZeroVecCache
$ZeroVecCache := MAKE_-VEC n
for i in 0..n-1 repeat $ZeroVecCache.i:=0
$ZeroVecCache
LZeros n ==
n < 1 => nil
l := [0]
for i in 2..n repeat l := [0, :l]
l
-- bpi2FunctionName x ==
-- s:= BPINAME x => s
-- x
-- subrToName x == BPINAME x
$variableNumberAlist := nil
variableNumber(x) ==
p := ASSQ(x, $variableNumberAlist)
null p =>
$variableNumberAlist := [[x,:0], :$variableNumberAlist]
0
p.rest := 1+rest p
rest p
newType? t == nil
-- functions used at run-time which were formerly in the compiler files
Undef(:u) ==
u':= LAST u
[[domain,slot],op,sig]:= u'
domain':=eval mkEvalable domain
not EQ(first domain'.slot, function Undef) =>
-- OK - thefunction is now defined
[:u'',.]:=u
if $reportBottomUpFlag then
sayMessage concat ['" Retrospective determination of slot",'%b,
slot,'%d,'"of",'%b,:prefix2String domain,'%d]
apply(first domain'.slot,[:u'',rest domain'.slot])
throwKeyedMsg("S2IF0008",[formatOpSignature(op,sig),domain])
makeInitialModemapFrame() ==
COPY $InitialModemapFrame
isCapitalWord x ==
(y := PNAME x) and and/[upperCase? y.i for i in 0..MAXINDEX y]
mkPredList listOfEntries ==
[['%ieq,['%head,"#1"],i] for arg in listOfEntries for i in 0..]
--%
++ Validate variable name `var', or abort analysis.
validateVariableNameOrElse var ==
not IDENTP var => throwKeyedMsg("S2IS0016",[STRINGIMAGE var])
var in '(% %%) => throwKeyedMsg("S2IS0050",[var])
true
--%
flattenCOND body ==
-- transforms nested COND clauses to flat ones, if possible
body isnt ['COND,:.] => body
['COND,:extractCONDClauses body]
extractCONDClauses clauses ==
-- extracts nested COND clauses into a flat structure
clauses is ['COND, [pred1,:act1],:restClauses] =>
if act1 is [['PROGN,:acts]] then act1 := acts
restClauses is [[''T,restCond]] =>
[[pred1,:act1],:extractCONDClauses restCond]
[[pred1,:act1],:restClauses]
[[''T,clauses]]
++ Returns true if symbol `id' is either a local variable
++ or an iterator variable.
isLocallyBound id ==
id in $localVars or id in $iteratorVars
|
