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https://github.com/mudabbir-ahmad/MYOL-TB2-prog3-Py.git
synced 2026-10-07 19:40:21 +00:00
Add ANTLR grammar rules for 'bye' and 'goodbye' with parser and listener updates
This commit is contained in:
bobbert committed
1 parent
6205020013
commit
d913d95b8b
9 files changed
+147
-29
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@@ -0,0 +1,28 @@
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import sys
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from antlr4 import *
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from week3Listener import week3Listener
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from week3Lexer import week3Lexer
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from week3Parser import week3Parser
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from antlr4.tree.Trees import Trees
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def main(argv):
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if len(argv) == 1 :
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InputStream = StdinStream()
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else :
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inpname = argv[1]
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InputStream = FileStream(inpname)
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# create lexer, token stream and parser using the selected input
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lexer = week3Lexer(InputStream)
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tokstream = CommonTokenStream(lexer)
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parser = week3Parser(tokstream)
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tree = parser.start()
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print(Trees.toStringTree(tree, None, parser))
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if __name__ == '__main__' :
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main(sys.argv)
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@@ -3,3 +3,4 @@ grammar week3;
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start : 'minimal' ID ;
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ID : [a-zA-Z]+ ;
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WS : [ \t\r\n]+ -> skip ;
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bye : ('bye'| 'goodbye') ID ;
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+6
-1
@@ -1,18 +1,23 @@
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token literal names:
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null
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'minimal'
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'bye'
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'goodbye'
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null
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null
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token symbolic names:
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null
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null
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null
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null
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ID
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WS
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rule names:
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start
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bye
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atn:
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[4, 1, 3, 6, 2, 0, 7, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 4, 0, 2, 1, 0, 0, 0, 2, 3, 5, 1, 0, 0, 3, 4, 5, 2, 0, 0, 4, 1, 1, 0, 0, 0, 0]
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[4, 1, 5, 11, 2, 0, 7, 0, 2, 1, 7, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 2, 0, 2, 0, 1, 1, 0, 2, 3, 8, 0, 4, 1, 0, 0, 0, 2, 7, 1, 0, 0, 0, 4, 5, 5, 1, 0, 0, 5, 6, 5, 4, 0, 0, 6, 1, 1, 0, 0, 0, 7, 8, 7, 0, 0, 0, 8, 9, 5, 4, 0, 0, 9, 3, 1, 0, 0, 0, 0]
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+6
-2
@@ -1,4 +1,8 @@
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T__0=1
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ID=2
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WS=3
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T__1=2
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T__2=3
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ID=4
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WS=5
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'minimal'=1
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'bye'=2
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'goodbye'=3
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@@ -1,17 +1,23 @@
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token literal names:
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null
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'minimal'
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'bye'
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'goodbye'
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null
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null
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token symbolic names:
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null
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null
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null
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null
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ID
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WS
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rule names:
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T__0
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T__1
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T__2
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ID
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WS
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@@ -23,4 +29,4 @@ mode names:
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DEFAULT_MODE
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atn:
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[4, 0, 3, 27, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 4, 1, 17, 8, 1, 11, 1, 12, 1, 18, 1, 2, 4, 2, 22, 8, 2, 11, 2, 12, 2, 23, 1, 2, 1, 2, 0, 0, 3, 1, 1, 3, 2, 5, 3, 1, 0, 2, 2, 0, 65, 90, 97, 122, 3, 0, 9, 10, 13, 13, 32, 32, 28, 0, 1, 1, 0, 0, 0, 0, 3, 1, 0, 0, 0, 0, 5, 1, 0, 0, 0, 1, 7, 1, 0, 0, 0, 3, 16, 1, 0, 0, 0, 5, 21, 1, 0, 0, 0, 7, 8, 5, 109, 0, 0, 8, 9, 5, 105, 0, 0, 9, 10, 5, 110, 0, 0, 10, 11, 5, 105, 0, 0, 11, 12, 5, 109, 0, 0, 12, 13, 5, 97, 0, 0, 13, 14, 5, 108, 0, 0, 14, 2, 1, 0, 0, 0, 15, 17, 7, 0, 0, 0, 16, 15, 1, 0, 0, 0, 17, 18, 1, 0, 0, 0, 18, 16, 1, 0, 0, 0, 18, 19, 1, 0, 0, 0, 19, 4, 1, 0, 0, 0, 20, 22, 7, 1, 0, 0, 21, 20, 1, 0, 0, 0, 22, 23, 1, 0, 0, 0, 23, 21, 1, 0, 0, 0, 23, 24, 1, 0, 0, 0, 24, 25, 1, 0, 0, 0, 25, 26, 6, 2, 0, 0, 26, 6, 1, 0, 0, 0, 3, 0, 18, 23, 1, 6, 0, 0]
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[4, 0, 5, 43, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7, 4, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 3, 4, 3, 33, 8, 3, 11, 3, 12, 3, 34, 1, 4, 4, 4, 38, 8, 4, 11, 4, 12, 4, 39, 1, 4, 1, 4, 0, 0, 5, 1, 1, 3, 2, 5, 3, 7, 4, 9, 5, 1, 0, 2, 2, 0, 65, 90, 97, 122, 3, 0, 9, 10, 13, 13, 32, 32, 44, 0, 1, 1, 0, 0, 0, 0, 3, 1, 0, 0, 0, 0, 5, 1, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0, 9, 1, 0, 0, 0, 1, 11, 1, 0, 0, 0, 3, 19, 1, 0, 0, 0, 5, 23, 1, 0, 0, 0, 7, 32, 1, 0, 0, 0, 9, 37, 1, 0, 0, 0, 11, 12, 5, 109, 0, 0, 12, 13, 5, 105, 0, 0, 13, 14, 5, 110, 0, 0, 14, 15, 5, 105, 0, 0, 15, 16, 5, 109, 0, 0, 16, 17, 5, 97, 0, 0, 17, 18, 5, 108, 0, 0, 18, 2, 1, 0, 0, 0, 19, 20, 5, 98, 0, 0, 20, 21, 5, 121, 0, 0, 21, 22, 5, 101, 0, 0, 22, 4, 1, 0, 0, 0, 23, 24, 5, 103, 0, 0, 24, 25, 5, 111, 0, 0, 25, 26, 5, 111, 0, 0, 26, 27, 5, 100, 0, 0, 27, 28, 5, 98, 0, 0, 28, 29, 5, 121, 0, 0, 29, 30, 5, 101, 0, 0, 30, 6, 1, 0, 0, 0, 31, 33, 7, 0, 0, 0, 32, 31, 1, 0, 0, 0, 33, 34, 1, 0, 0, 0, 34, 32, 1, 0, 0, 0, 34, 35, 1, 0, 0, 0, 35, 8, 1, 0, 0, 0, 36, 38, 7, 1, 0, 0, 37, 36, 1, 0, 0, 0, 38, 39, 1, 0, 0, 0, 39, 37, 1, 0, 0, 0, 39, 40, 1, 0, 0, 0, 40, 41, 1, 0, 0, 0, 41, 42, 6, 4, 0, 0, 42, 10, 1, 0, 0, 0, 3, 0, 34, 39, 1, 6, 0, 0]
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+21
-14
@@ -10,16 +10,21 @@ else:
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def serializedATN():
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return [
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4,0,3,27,6,-1,2,0,7,0,2,1,7,1,2,2,7,2,1,0,1,0,1,0,1,0,1,0,1,0,1,
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0,1,0,1,1,4,1,17,8,1,11,1,12,1,18,1,2,4,2,22,8,2,11,2,12,2,23,1,
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2,1,2,0,0,3,1,1,3,2,5,3,1,0,2,2,0,65,90,97,122,3,0,9,10,13,13,32,
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32,28,0,1,1,0,0,0,0,3,1,0,0,0,0,5,1,0,0,0,1,7,1,0,0,0,3,16,1,0,0,
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0,5,21,1,0,0,0,7,8,5,109,0,0,8,9,5,105,0,0,9,10,5,110,0,0,10,11,
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5,105,0,0,11,12,5,109,0,0,12,13,5,97,0,0,13,14,5,108,0,0,14,2,1,
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0,0,0,15,17,7,0,0,0,16,15,1,0,0,0,17,18,1,0,0,0,18,16,1,0,0,0,18,
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19,1,0,0,0,19,4,1,0,0,0,20,22,7,1,0,0,21,20,1,0,0,0,22,23,1,0,0,
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0,23,21,1,0,0,0,23,24,1,0,0,0,24,25,1,0,0,0,25,26,6,2,0,0,26,6,1,
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0,0,0,3,0,18,23,1,6,0,0
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4,0,5,43,6,-1,2,0,7,0,2,1,7,1,2,2,7,2,2,3,7,3,2,4,7,4,1,0,1,0,1,
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0,1,0,1,0,1,0,1,0,1,0,1,1,1,1,1,1,1,1,1,2,1,2,1,2,1,2,1,2,1,2,1,
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2,1,2,1,3,4,3,33,8,3,11,3,12,3,34,1,4,4,4,38,8,4,11,4,12,4,39,1,
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4,1,4,0,0,5,1,1,3,2,5,3,7,4,9,5,1,0,2,2,0,65,90,97,122,3,0,9,10,
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13,13,32,32,44,0,1,1,0,0,0,0,3,1,0,0,0,0,5,1,0,0,0,0,7,1,0,0,0,0,
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9,1,0,0,0,1,11,1,0,0,0,3,19,1,0,0,0,5,23,1,0,0,0,7,32,1,0,0,0,9,
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37,1,0,0,0,11,12,5,109,0,0,12,13,5,105,0,0,13,14,5,110,0,0,14,15,
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5,105,0,0,15,16,5,109,0,0,16,17,5,97,0,0,17,18,5,108,0,0,18,2,1,
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0,0,0,19,20,5,98,0,0,20,21,5,121,0,0,21,22,5,101,0,0,22,4,1,0,0,
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0,23,24,5,103,0,0,24,25,5,111,0,0,25,26,5,111,0,0,26,27,5,100,0,
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0,27,28,5,98,0,0,28,29,5,121,0,0,29,30,5,101,0,0,30,6,1,0,0,0,31,
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33,7,0,0,0,32,31,1,0,0,0,33,34,1,0,0,0,34,32,1,0,0,0,34,35,1,0,0,
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0,35,8,1,0,0,0,36,38,7,1,0,0,37,36,1,0,0,0,38,39,1,0,0,0,39,37,1,
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0,0,0,39,40,1,0,0,0,40,41,1,0,0,0,41,42,6,4,0,0,42,10,1,0,0,0,3,
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0,34,39,1,6,0,0
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]
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class week3Lexer(Lexer):
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@@ -29,20 +34,22 @@ class week3Lexer(Lexer):
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decisionsToDFA = [ DFA(ds, i) for i, ds in enumerate(atn.decisionToState) ]
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T__0 = 1
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ID = 2
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WS = 3
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T__1 = 2
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T__2 = 3
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ID = 4
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WS = 5
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channelNames = [ u"DEFAULT_TOKEN_CHANNEL", u"HIDDEN" ]
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modeNames = [ "DEFAULT_MODE" ]
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literalNames = [ "<INVALID>",
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"'minimal'" ]
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"'minimal'", "'bye'", "'goodbye'" ]
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symbolicNames = [ "<INVALID>",
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"ID", "WS" ]
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ruleNames = [ "T__0", "ID", "WS" ]
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ruleNames = [ "T__0", "T__1", "T__2", "ID", "WS" ]
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grammarFileName = "week3.g4"
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@@ -1,4 +1,8 @@
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T__0=1
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ID=2
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WS=3
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T__1=2
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T__2=3
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ID=4
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WS=5
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'minimal'=1
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'bye'=2
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'goodbye'=3
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@@ -17,5 +17,14 @@ class week3Listener(ParseTreeListener):
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pass
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# Enter a parse tree produced by week3Parser#bye.
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def enterBye(self, ctx:week3Parser.ByeContext):
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pass
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# Exit a parse tree produced by week3Parser#bye.
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def exitBye(self, ctx:week3Parser.ByeContext):
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pass
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del week3Parser
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+63
-9
@@ -10,8 +10,9 @@ else:
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def serializedATN():
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return [
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4,1,3,6,2,0,7,0,1,0,1,0,1,0,1,0,0,0,1,0,0,0,4,0,2,1,0,0,0,2,3,5,
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1,0,0,3,4,5,2,0,0,4,1,1,0,0,0,0
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4,1,5,11,2,0,7,0,2,1,7,1,1,0,1,0,1,0,1,1,1,1,1,1,1,1,0,0,2,0,2,0,
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1,1,0,2,3,8,0,4,1,0,0,0,2,7,1,0,0,0,4,5,5,1,0,0,5,6,5,4,0,0,6,1,
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1,0,0,0,7,8,7,0,0,0,8,9,5,4,0,0,9,3,1,0,0,0,0
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]
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class week3Parser ( Parser ):
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@@ -24,18 +25,22 @@ class week3Parser ( Parser ):
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sharedContextCache = PredictionContextCache()
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literalNames = [ "<INVALID>", "'minimal'" ]
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literalNames = [ "<INVALID>", "'minimal'", "'bye'", "'goodbye'" ]
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symbolicNames = [ "<INVALID>", "<INVALID>", "ID", "WS" ]
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symbolicNames = [ "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>",
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"ID", "WS" ]
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RULE_start = 0
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RULE_bye = 1
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ruleNames = [ "start" ]
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ruleNames = [ "start", "bye" ]
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EOF = Token.EOF
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T__0=1
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ID=2
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WS=3
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T__1=2
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T__2=3
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ID=4
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WS=5
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def __init__(self, input:TokenStream, output:TextIO = sys.stdout):
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super().__init__(input, output)
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@@ -76,9 +81,58 @@ class week3Parser ( Parser ):
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self.enterRule(localctx, 0, self.RULE_start)
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try:
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self.enterOuterAlt(localctx, 1)
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self.state = 2
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self.state = 4
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self.match(week3Parser.T__0)
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self.state = 3
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self.state = 5
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self.match(week3Parser.ID)
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except RecognitionException as re:
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localctx.exception = re
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self._errHandler.reportError(self, re)
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self._errHandler.recover(self, re)
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finally:
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self.exitRule()
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return localctx
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class ByeContext(ParserRuleContext):
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__slots__ = 'parser'
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def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
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super().__init__(parent, invokingState)
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self.parser = parser
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def ID(self):
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return self.getToken(week3Parser.ID, 0)
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def getRuleIndex(self):
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return week3Parser.RULE_bye
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def enterRule(self, listener:ParseTreeListener):
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if hasattr( listener, "enterBye" ):
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listener.enterBye(self)
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def exitRule(self, listener:ParseTreeListener):
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if hasattr( listener, "exitBye" ):
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listener.exitBye(self)
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def bye(self):
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localctx = week3Parser.ByeContext(self, self._ctx, self.state)
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self.enterRule(localctx, 2, self.RULE_bye)
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self._la = 0 # Token type
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try:
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self.enterOuterAlt(localctx, 1)
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self.state = 7
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_la = self._input.LA(1)
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if not(_la==2 or _la==3):
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self._errHandler.recoverInline(self)
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else:
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self._errHandler.reportMatch(self)
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self.consume()
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self.state = 8
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self.match(week3Parser.ID)
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except RecognitionException as re:
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localctx.exception = re
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