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PPScriptingTest.st
changeset 20 46d4542c5f5e
parent 4 90de244a7fa2
child 193 ab4c4dcb60f3 
--- a/PPScriptingTest.st	Sat May 05 00:00:45 2012 +0200
+++ b/PPScriptingTest.st	Sat May 05 00:00:57 2012 +0200
@@ -7,80 +7,79 @@
 	category:'PetitTests-Tests'
 !
 
-PPScriptingTest comment:'These are some simple demo-scripts of parser combinators for the compiler construction course.
-http://www.iam.unibe.ch/~scg/Teaching/CC/index.html'
+PPScriptingTest comment:'These are some simple demo-scripts of parser combinators for the compiler construction course.
http://www.iam.unibe.ch/~scg/Teaching/CC/index.html'
 !
 
 
 !PPScriptingTest methodsFor:'examples'!
 
 expressionInterpreter
-	"Same as #expressionInterpreter but with semantic actions."
-
-	| mul prim add dec |
-	add := PPUnresolvedParser new.
-	mul := PPUnresolvedParser new.
-	prim := PPUnresolvedParser new.
-	dec := ($0 ppMinus: $9) ==> [ :token | token codePoint - $0 codePoint ].
-	add def: ((mul , $+ asParser , add) ==> [ :nodes | (nodes at: 1) + (nodes at: 3) ])
-		/ mul.
-	mul def: ((prim , $* asParser , mul) ==> [ :nodes | (nodes at: 1) * (nodes at: 3) ])
-		/ prim.
-	prim def: (($( asParser , add , $) asParser) ==> [ :nodes | nodes at: 2 ])
-		/ dec.
-	^ add end
+        "Same as #expressionInterpreter but with semantic actions."
+        
+        | mul prim add dec |
+        add := PPUnresolvedParser new.
+        mul := PPUnresolvedParser new.
+        prim := PPUnresolvedParser new.
+        dec := ($0 ppMinus: $9) ==> [ :token | token codePoint - $0 codePoint ].
+        add def: ((mul , $+ asParser , add) ==> [ :nodes | (nodes at: 1) + (nodes at: 3) ])
+                / mul.
+        mul def: ((prim , $* asParser , mul) ==> [ :nodes | (nodes at: 1) * (nodes at: 3) ])
+                / prim.
+        prim def: (($( asParser , add , $) asParser) ==> [ :nodes | nodes at: 2 ])
+                / dec.
+        ^ add end
 
     "Modified: / 19-12-2010 / 18:13:51 / Jan Kurs <kurs.jan@post.cz>"
 !
 
 expressionParser
-	"Simple demo of scripting an expression parser."
-
-	| mul prim add dec |
-	add := PPUnresolvedParser new.
-	mul := PPUnresolvedParser new.
-	prim := PPUnresolvedParser new.
-	dec := ($0 ppMinus: $9).
-	add def: (mul , $+ asParser , add)
-		/ mul.
-	mul def: (prim , $* asParser , mul)
-		/ prim.
-	prim def: ($( asParser , add , $) asParser)
-		/ dec.
-	^ add end
+        "Simple demo of scripting an expression parser."
+        
+        | mul prim add dec |
+        add := PPUnresolvedParser new.
+        mul := PPUnresolvedParser new.
+        prim := PPUnresolvedParser new.
+        dec := ($0 ppMinus: $9).
+        add def: (mul , $+ asParser , add)
+                / mul.
+        mul def: (prim , $* asParser , mul)
+                / prim.
+        prim def: ($( asParser , add , $) asParser)
+                / dec.
+        ^ add end
 
     "Modified: / 19-12-2010 / 18:14:18 / Jan Kurs <kurs.jan@post.cz>"
 !
 
 straightLineParser
-	| goal stm stmList id char dec exp expList mulExp primExp nonzero num lower upper |
-	goal := PPUnresolvedParser new.
-	stmList := PPUnresolvedParser new.
-	stm := PPUnresolvedParser new.
-	exp := PPUnresolvedParser new.
-	expList := PPUnresolvedParser new.
-	mulExp := PPUnresolvedParser new.
-	primExp := PPUnresolvedParser new.
+        | goal stm stmList id char dec exp expList mulExp primExp nonzero num lower upper |
+        goal := PPUnresolvedParser new.
+        stmList := PPUnresolvedParser new.
+        stm := PPUnresolvedParser new.
+        exp := PPUnresolvedParser new.
+        expList := PPUnresolvedParser new.
+        mulExp := PPUnresolvedParser new.
+        primExp := PPUnresolvedParser new.
+        
+        lower := $a ppMinus: $z.
+        upper := $A ppMinus: $Z.
+        char := lower / upper.
+        nonzero := $1 ppMinus: $9.
+        dec := $0 ppMinus: $9.
+        id := char, ( char / dec ) star.
+        num := $0 asParser / ( nonzero, dec star).
 
-	lower := $a ppMinus: $z.
-	upper := $A ppMinus: $Z.
-	char := lower / upper.
-	nonzero := $1 ppMinus: $9.
-	dec := $0 ppMinus: $9.
-	id := char, ( char / dec ) star.
-	num := $0 asParser / ( nonzero, dec star).
-
-	goal def: stmList end.
-	stmList def: stm , ( $; asParser, stm ) star.
-	stm def: ( id, ':=' asParser, exp )
-		/ ( 'print' asParser, $( asParser, expList, $) asParser ).
-	exp def: mulExp, ( ( $+ asParser / $- asParser ), mulExp ) star.
-	expList def: exp, ( $, asParser, exp ) star.
-	mulExp def: primExp, ( ( $* asParser / $/ asParser ), primExp ) star.
-	primExp def: id
-		/ num
-		/ ( $( asParser, stmList, $, asParser, exp, $) asParser ).
-	^ goal
+        goal def: stmList end.
+        stmList def: stm , ( $; asParser, stm ) star.
+        stm def: ( id, ':=' asParser, exp )
+                / ( 'print' asParser, $( asParser, expList, $) asParser ). 
+        exp def: mulExp, ( ( $+ asParser / $- asParser ), mulExp ) star.
+        expList def: exp, ( $, asParser, exp ) star.
+        mulExp def: primExp, ( ( $* asParser / $/ asParser ), primExp ) star.
+        primExp def: id
+                / num
+                / ( $( asParser, stmList, $, asParser, exp, $) asParser ).
+        ^ goal
 
     "Modified: / 19-12-2010 / 18:15:14 / Jan Kurs <kurs.jan@post.cz>"
 ! !
@@ -88,7 +87,7 @@
 !PPScriptingTest methodsFor:'tests'!
 
 testExpressionInterpreter
-	self
+	self 
 		assert: self expressionInterpreter
 		parse: '2*(3+4)'
 		to: 14
@@ -102,14 +101,14 @@
 !
 
 testSLassign
-
+	
 	self assert: self straightLineParser
 		parse: 'abc:=1'
 		to: #(#($a #($b $c) ':=' #(#(#($1 #()) #()) #())) #())
 !
 
 testSLprint
-	self
+	self 
 		assert: self straightLineParser
 		parse: 'print(3,4)'
 		to: #(('print' $( ((($3 ()) ()) () (($, ((($4 ()) ()) ())))) $)) ())
@@ -117,6 +116,14 @@
 
 !PPScriptingTest class methodsFor:'documentation'!
 
+version
+    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPScriptingTest.st,v 1.3 2012-05-04 22:00:57 vrany Exp $'
+!
+
+version_CVS
+    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPScriptingTest.st,v 1.3 2012-05-04 22:00:57 vrany Exp $'
+!
+
 version_SVN
-    ^ '$Id: PPScriptingTest.st,v 1.2 2012-01-13 11:22:50 cg Exp $'
+    ^ '§Id: PPScriptingTest.st 5 2010-12-19 17:38:27Z kursjan §'
 ! !
hg/stx-goodies-petitparser