1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
-- Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd.
-- All rights reserved.
-- Copyright (C) 2007-2008, 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 '"macros"
)package "BOOT"
-- Scratchpad-II server
-- Assoc list of interpreter frame names and unique integer identifiers
$frameAlist := nil
$frameNumber := 0
$currentFrameNum := 0
$EndServerSession := false
$NeedToSignalSessionManager := false
$sockBufferLength := 9217
serverReadLine(stream) ==
-- used in place of READ-LINE in a scratchpad server system.
FORCE_-OUTPUT()
not $SpadServer or not IS_-CONSOLE stream =>
read_-line(stream)
IN_-STREAM: fluid := stream
_*EOF_*: fluid := NIL
line :=
while not $EndServerSession and not _*EOF_* repeat
if $NeedToSignalSessionManager then
sockSendInt($SessionManager, $EndOfOutput)
$NeedToSignalSessionManager := false
action := serverSwitch()
action = $CallInterp =>
l := read_-line(stream)
$NeedToSignalSessionManager := true
return l
action = $CreateFrame =>
frameName := GENTEMP('"frame")
addNewInterpreterFrame(frameName)
$frameAlist := [[$frameNumber,:frameName], :$frameAlist]
$currentFrameNum := $frameNumber
sockSendInt($SessionManager, $frameNumber)
$frameNumber := $frameNumber + 1
sockSendString($SessionManager, MKPROMPT())
action = $SwitchFrames =>
$currentFrameNum := sockGetInt($SessionManager)
currentFrame := LASSOC($currentFrameNum, $frameAlist)
changeToNamedInterpreterFrame currentFrame
action = $EndSession =>
$EndServerSession := true
action = $LispCommand =>
$NeedToSignalSessionManager := true
stringBuf := MAKE_-STRING $sockBufferLength
sockGetString($MenuServer, stringBuf, $sockBufferLength)
form := unescapeStringsInForm READ_-FROM_-STRING stringBuf
protectedEVAL form
action = $QuietSpadCommand =>
$NeedToSignalSessionManager := true
executeQuietCommand()
action = $SpadCommand =>
$NeedToSignalSessionManager := true
stringBuf := MAKE_-STRING 512
sockGetString($MenuServer, stringBuf, 512)
CATCH('coerceFailure,CATCH('top__level, CATCH('SPAD__READER,
parseAndInterpret stringBuf)))
PRINC MKPROMPT()
FINISH_-OUTPUT()
action = $NonSmanSession =>
$SpadServer := nil
action = $KillLispSystem =>
BYE()
NIL
line => line
""
parseAndInterpret str ==
$InteractiveMode :fluid := true
$BOOT: fluid := NIL
$SPAD: fluid := true
$e:fluid := $InteractiveFrame
ncParseAndInterpretString str
oldParseAndInterpret str ==
tree := string2SpadTree str
tree => processInteractive(parseTransform postTransform tree, NIL)
NIL
executeQuietCommand() ==
$QuietCommand: fluid := true
stringBuf := MAKE_-STRING 512
sockGetString($MenuServer, stringBuf, 512)
CATCH('coerceFailure,CATCH('top__level, CATCH('SPAD__READER,
parseAndInterpret stringBuf)))
-- Includued for compatability with old-parser systems
serverLoop() ==
IN_-STREAM: fluid := CURINSTREAM
_*EOF_*: fluid := NIL
while not $EndServerSession and not _*EOF_* repeat
if $Prompt then (PRINC MKPROMPT(); FINISH_-OUTPUT())
$Prompt := NIL
action := serverSwitch()
action = $CallInterp =>
CATCH('coerceFailure,CATCH('top__level, CATCH('SPAD__READER,
parseAndInterpret read_-line(CURINSTREAM) )))
PRINC MKPROMPT()
FINISH_-OUTPUT()
sockSendInt($SessionManager, $EndOfOutput)
action = $CreateFrame =>
frameName := GENTEMP('"frame")
addNewInterpreterFrame(frameName)
$frameAlist := [[$frameNumber,:frameName], :$frameAlist]
$currentFrameNum := $frameNumber
sockSendInt($SessionManager, $frameNumber)
$frameNumber := $frameNumber + 1
sockSendString($SessionManager, MKPROMPT())
action = $SwitchFrames =>
$currentFrameNum := sockGetInt($SessionManager)
currentFrame := LASSOC($currentFrameNum, $frameAlist)
changeToNamedInterpreterFrame currentFrame
action = $EndSession =>
$EndServerSession := true
action = $LispCommand =>
stringBuf := MAKE_-STRING 512
sockGetString($MenuServer, stringBuf, 512)
form := unescapeStringsInForm READ_-FROM_-STRING stringBuf
EVAL form
action = $QuietSpadCommand =>
executeQuietCommand()
action = $SpadCommand =>
stringBuf := MAKE_-STRING 512
sockGetString($MenuServer, stringBuf, 512)
CATCH('coerceFailure,CATCH('top__level, CATCH('SPAD__READER,
parseAndInterpret stringBuf)))
PRINC MKPROMPT()
FINISH_-OUTPUT()
sockSendInt($SessionManager, $EndOfOutput)
NIL
if _*EOF_* then $Prompt := true
NIL
parseAndEvalToHypertex str ==
lines := parseAndEvalToStringForHypertex str
len := LENGTH lines
sockSendInt($MenuServer, len)
for s in lines repeat
sockSendString($MenuServer, s)
parseAndEvalToString str ==
$collectOutput:local := true
$outputLines: local := nil
$IOindex: local := nil
v := CATCH('SPAD__READER, CATCH('top__level, parseAndEvalStr str))
v = 'restart => ['"error"]
NREVERSE $outputLines
parseAndEvalToStringForHypertex str ==
$collectOutput:local := true
$outputLines: local := nil
v := CATCH('SPAD__READER, CATCH('top__level, parseAndEvalStr str))
v = 'restart => ['"error"]
NREVERSE $outputLines
parseAndEvalToStringEqNum str ==
$collectOutput:local := true
$outputLines: local := nil
v := CATCH('SPAD__READER, CATCH('top__level, parseAndEvalStr str))
v = 'restart => ['"error"]
NREVERSE $outputLines
parseAndInterpToString str ==
v := applyWithOutputToString('parseAndEvalStr, [str])
breakIntoLines CDR v
parseAndEvalStr string ==
$InteractiveMode :fluid := true
$BOOT: fluid := NIL
$SPAD: fluid := true
$e:fluid := $InteractiveFrame
parseAndEvalStr1 string
parseAndEvalStr1 string ==
string.0 = char '")" =>
doSystemCommand SUBSEQ(string, 1)
processInteractive(ncParseFromString string, NIL)
protectedEVAL x ==
error := true
val := NIL
UNWIND_-PROTECT((val := EVAL x; error := NIL),
error => (resetStackLimits(); sendHTErrorSignal()))
val
|
