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authorNathan Binkert <binkertn@umich.edu>2007-05-24 21:54:51 -0700
committerNathan Binkert <binkertn@umich.edu>2007-05-24 21:54:51 -0700
commit44ebb8d3e27329e9f0b501897585359b4ab696f2 (patch)
tree536ed9dba1458f0d13d680ccfbb5f7ec3b79109c /ext/ply/example/BASIC/basic.py
parent9f1c104ccd835ce390d9e9fd24e59a6ea626ed17 (diff)
downloadgem5-44ebb8d3e27329e9f0b501897585359b4ab696f2.tar.xz
Update to ply 2.3
ext/ply/ply/lex.py: ext/ply/ply/yacc.py: ext/ply/CHANGES: ext/ply/README: ext/ply/TODO: ext/ply/doc/ply.html: ext/ply/example/ansic/clex.py: ext/ply/example/ansic/cparse.py: ext/ply/example/calc/calc.py: ext/ply/example/hedit/hedit.py: ext/ply/example/optcalc/calc.py: ext/ply/test/README: ext/ply/test/calclex.py: ext/ply/test/lex_doc1.exp: ext/ply/test/lex_doc1.py: ext/ply/test/lex_dup1.exp: ext/ply/test/lex_dup1.py: ext/ply/test/lex_dup2.exp: ext/ply/test/lex_dup2.py: ext/ply/test/lex_dup3.exp: ext/ply/test/lex_dup3.py: ext/ply/test/lex_empty.py: ext/ply/test/lex_error1.py: ext/ply/test/lex_error2.py: ext/ply/test/lex_error3.exp: ext/ply/test/lex_error3.py: ext/ply/test/lex_error4.exp: ext/ply/test/lex_error4.py: ext/ply/test/lex_hedit.exp: ext/ply/test/lex_hedit.py: ext/ply/test/lex_ignore.exp: ext/ply/test/lex_ignore.py: ext/ply/test/lex_re1.exp: ext/ply/test/lex_re1.py: ext/ply/test/lex_rule1.py: ext/ply/test/lex_token1.py: ext/ply/test/lex_token2.py: ext/ply/test/lex_token3.py: ext/ply/test/lex_token4.py: ext/ply/test/lex_token5.exp: ext/ply/test/lex_token5.py: ext/ply/test/yacc_badargs.exp: ext/ply/test/yacc_badargs.py: ext/ply/test/yacc_badprec.exp: ext/ply/test/yacc_badprec.py: ext/ply/test/yacc_badprec2.exp: ext/ply/test/yacc_badprec2.py: ext/ply/test/yacc_badrule.exp: ext/ply/test/yacc_badrule.py: ext/ply/test/yacc_badtok.exp: ext/ply/test/yacc_badtok.py: ext/ply/test/yacc_dup.exp: ext/ply/test/yacc_dup.py: ext/ply/test/yacc_error1.exp: ext/ply/test/yacc_error1.py: ext/ply/test/yacc_error2.exp: ext/ply/test/yacc_error2.py: ext/ply/test/yacc_error3.exp: ext/ply/test/yacc_error3.py: ext/ply/test/yacc_inf.exp: ext/ply/test/yacc_inf.py: ext/ply/test/yacc_missing1.exp: ext/ply/test/yacc_missing1.py: ext/ply/test/yacc_nodoc.exp: ext/ply/test/yacc_nodoc.py: ext/ply/test/yacc_noerror.exp: ext/ply/test/yacc_noerror.py: ext/ply/test/yacc_nop.exp: ext/ply/test/yacc_nop.py: ext/ply/test/yacc_notfunc.exp: ext/ply/test/yacc_notfunc.py: ext/ply/test/yacc_notok.exp: ext/ply/test/yacc_notok.py: ext/ply/test/yacc_rr.exp: ext/ply/test/yacc_rr.py: ext/ply/test/yacc_simple.exp: ext/ply/test/yacc_simple.py: ext/ply/test/yacc_sr.exp: ext/ply/test/yacc_sr.py: ext/ply/test/yacc_term1.exp: ext/ply/test/yacc_term1.py: ext/ply/test/yacc_unused.exp: ext/ply/test/yacc_unused.py: ext/ply/test/yacc_uprec.exp: ext/ply/test/yacc_uprec.py: Import patch ply.diff src/arch/isa_parser.py: everything is now within the ply package --HG-- rename : ext/ply/lex.py => ext/ply/ply/lex.py rename : ext/ply/yacc.py => ext/ply/ply/yacc.py extra : convert_revision : fca8deabd5c095bdeabd52a1f236ae1404ef106e
Diffstat (limited to 'ext/ply/example/BASIC/basic.py')
-rw-r--r--ext/ply/example/BASIC/basic.py68
1 files changed, 68 insertions, 0 deletions
diff --git a/ext/ply/example/BASIC/basic.py b/ext/ply/example/BASIC/basic.py
new file mode 100644
index 000000000..3a07acdbf
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+++ b/ext/ply/example/BASIC/basic.py
@@ -0,0 +1,68 @@
+# An implementation of Dartmouth BASIC (1964)
+#
+
+import sys
+sys.path.insert(0,"../..")
+
+import basiclex
+import basparse
+import basinterp
+
+# If a filename has been specified, we try to run it.
+# If a runtime error occurs, we bail out and enter
+# interactive mode below
+if len(sys.argv) == 2:
+ data = open(sys.argv[1]).read()
+ prog = basparse.parse(data)
+ if not prog: raise SystemExit
+ b = basinterp.BasicInterpreter(prog)
+ try:
+ b.run()
+ raise SystemExit
+ except RuntimeError:
+ pass
+
+else:
+ b = basinterp.BasicInterpreter({})
+
+# Interactive mode. This incrementally adds/deletes statements
+# from the program stored in the BasicInterpreter object. In
+# addition, special commands 'NEW','LIST',and 'RUN' are added.
+# Specifying a line number with no code deletes that line from
+# the program.
+
+while 1:
+ try:
+ line = raw_input("[BASIC] ")
+ except EOFError:
+ raise SystemExit
+ if not line: continue
+ line += "\n"
+ prog = basparse.parse(line)
+ if not prog: continue
+
+ keys = prog.keys()
+ if keys[0] > 0:
+ b.add_statements(prog)
+ else:
+ stat = prog[keys[0]]
+ if stat[0] == 'RUN':
+ try:
+ b.run()
+ except RuntimeError:
+ pass
+ elif stat[0] == 'LIST':
+ b.list()
+ elif stat[0] == 'BLANK':
+ b.del_line(stat[1])
+ elif stat[0] == 'NEW':
+ b.new()
+
+
+
+
+
+
+
+
+