From 41a2c1fdaa07b3b51bf6073bf6fbb0156b085fa5 Mon Sep 17 00:00:00 2001
From: Alexander Sulfrian <alexander@sulfrian.net>
Date: Tue, 23 Jun 2009 03:21:32 +0200
Subject: added parser
- commited parser (Michael Popov)
- changed encoding of parser.py to utf8
---
src/front/__init__.py | 26 ++++++++++++++------------
1 file changed, 14 insertions(+), 12 deletions(-)
(limited to 'src/front/__init__.py')
diff --git a/src/front/__init__.py b/src/front/__init__.py
index fdf35a8..747efde 100644
--- a/src/front/__init__.py
+++ b/src/front/__init__.py
@@ -1,11 +1,12 @@
from front.lexer import Lexer
from front.parser import Parser
-from front.symbols import SymbolTable
+#from front.symbols import SymbolTable
def main():
source = '''fun fib[a]
if a < 2
@1
+ end
@( fib[a-1] + fib[a-2] )
end
@@ -14,23 +15,24 @@ fun main[]
sum = 0
i = 0
while (i < 10)
- sum = sum + fib[i = i + 1]
+ sum = sum + fib[i]
+ i = i + 1
end
@sum
end'''
- symbols = SymbolTable()
- lex = Lexer(source)
+ #symbols = SymbolTable()
+ #lex = Lexer(source)
# testing
- while True:
- token = lex.scan()
- print token.__repr__()
- if not token:
- break
-
- # parse = Parser(lex)
- # parse.program()
+ #while True:
+ # token = lex.scan()
+ # print token.__repr__()
+ # if not token:
+ # break
+
+ parse = Parser(Lexer(source))
+ print parse.parse()
if __name__ == "__main__":
main()
--
cgit v1.2.3
From a4f2a248273064ec464e7d376f8f5778ac808bd6 Mon Sep 17 00:00:00 2001
From: Alexander Sulfrian <alexander@sulfrian.net>
Date: Sun, 28 Jun 2009 15:10:57 +0200
Subject: fixed error with not newline at file end
moved __init__.py with testcode from src/front to src/
added in lexer "\n\n" at source end to have a newline at file end
added unexpected end of file message, if matched token is None
---
src/front/__init__.py | 38 --------------------------------------
1 file changed, 38 deletions(-)
(limited to 'src/front/__init__.py')
diff --git a/src/front/__init__.py b/src/front/__init__.py
index 747efde..e69de29 100644
--- a/src/front/__init__.py
+++ b/src/front/__init__.py
@@ -1,38 +0,0 @@
-from front.lexer import Lexer
-from front.parser import Parser
-#from front.symbols import SymbolTable
-
-def main():
- source = '''fun fib[a]
- if a < 2
- @1
- end
- @( fib[a-1] + fib[a-2] )
-end
-
-# main function
-fun main[]
- sum = 0
- i = 0
- while (i < 10)
- sum = sum + fib[i]
- i = i + 1
- end
- @sum
-end'''
-
- #symbols = SymbolTable()
- #lex = Lexer(source)
-
- # testing
- #while True:
- # token = lex.scan()
- # print token.__repr__()
- # if not token:
- # break
-
- parse = Parser(Lexer(source))
- print parse.parse()
-
-if __name__ == "__main__":
- main()
--
cgit v1.2.3