slicc: Pure python implementation of slicc.

This is simply a translation of the C++ slicc into python with very minimal
reorganization of the code.  The output can be verified as nearly identical
by doing a "diff -wBur".

Slicc can easily be run manually by using util/slicc

1 files changed, 108 insertions, 0 deletions

diff --git a/src/mem/slicc/main.py b/src/mem/slicc/main.py
new file mode 100644
index 000000000..0bc2ef37a
--- /dev/null
+++ b/src/mem/slicc/main.py
@@ -0,0 +1,108 @@
+# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
+# Copyright (c) 2009 The Hewlett-Packard Development Company
+# 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 copyright holders 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 os
+import sys
+
+from slicc.parser import SLICC
+
+usage="%prog [options] <files> ... "
+version="%prog v0.4"
+brief_copyright='''
+Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
+Copyright (c) 2009 The Hewlett-Packard Development Company
+All Rights Reserved.
+'''
+
+def nprint(format, *args):
+    pass
+
+def eprint(format, *args):
+    if args:
+        format = format % args
+
+    print >>sys.stderr, format
+
+def main(args=None):
+    import optparse
+
+    parser = optparse.OptionParser(usage=usage, version=version,
+                                   description=brief_copyright)
+    parser.add_option("-d", "--debug", default=False, action="store_true",
+                      help="Turn on PLY debugging")
+    parser.add_option("-C", "--code-path", default="generated",
+                      help="Path where C++ code output code goes")
+    parser.add_option("-H", "--html-path",
+                      help="Path where html output goes")
+    parser.add_option("-F", "--print-files",
+                      help="Print files that SLICC will generate")
+    parser.add_option("-q", "--quiet",
+                      help="don't print messages")
+    opts,files = parser.parse_args(args=args)
+
+    if len(files) < 1:
+        parser.print_help()
+        sys.exit(2)
+
+    output = nprint if opts.quiet else eprint
+
+    output("SLICC v0.4")
+    slicc = SLICC(debug=opts.debug)
+
+    output("Parsing...")
+    for filename in slicc.load(files, verbose=True):
+        output("    %s", filename)
+
+    if opts.print_files:
+        hh, cc = slicc.files()
+        hh = sorted(hh)
+        cc = sorted(cc)
+        print 'Headers:'
+        for i in hh:
+            print '    %s' % i
+
+        print 'Sources:'
+        for i in cc:
+            print '    %s' % i
+    else:
+        output("Generator pass 1...")
+        slicc.findMachines()
+
+        output("Generator pass 2...")
+        slicc.generate()
+
+        output("Generating C++ files...")
+        slicc.writeCodeFiles(opts.code_path)
+
+        if opts.html_path:
+            nprint("Writing HTML files...")
+            slicc.writeHTMLFiles(opts.html_path)
+
+    eprint("SLICC is Done.")
+
+if __name__ == "__main__":
+    main()