main.py revision 12563:8d59ed22ae79 
1# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
2# Copyright (c) 2009 The Hewlett-Packard Development Company
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions are
7# met: redistributions of source code must retain the above copyright
8# notice, this list of conditions and the following disclaimer;
9# redistributions in binary form must reproduce the above copyright
10# notice, this list of conditions and the following disclaimer in the
11# documentation and/or other materials provided with the distribution;
12# neither the name of the copyright holders nor the names of its
13# contributors may be used to endorse or promote products derived from
14# this software without specific prior written permission.
15#
16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28from __future__ import print_function
29
30import os
31import sys
32
33from slicc.parser import SLICC
34
35usage="%prog [options] <files> ... "
36version="%prog v0.4"
37brief_copyright='''
38Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
39Copyright (c) 2009 The Hewlett-Packard Development Company
40All Rights Reserved.
41'''
42
43def nprint(format, *args):
44    pass
45
46def eprint(format, *args):
47    if args:
48        format = format % args
49
50    print(format, file=sys.stderr)
51
52def main(args=None):
53    import optparse
54
55    parser = optparse.OptionParser(usage=usage, version=version,
56                                   description=brief_copyright)
57    parser.add_option("-d", "--debug", default=False, action="store_true",
58                      help="Turn on PLY debugging")
59    parser.add_option("-C", "--code-path", default="generated",
60                      help="Path where C++ code output code goes")
61    parser.add_option("-H", "--html-path",
62                      help="Path where html output goes")
63    parser.add_option("-F", "--print-files",
64                      help="Print files that SLICC will generate")
65    parser.add_option("--tb", "--traceback", action='store_true',
66                      help="print traceback on error")
67    parser.add_option("-q", "--quiet",
68                      help="don't print messages")
69    opts,files = parser.parse_args(args=args)
70
71    if len(files) != 1:
72        parser.print_help()
73        sys.exit(2)
74
75    output = nprint if opts.quiet else eprint
76
77    output("SLICC v0.4")
78    output("Parsing...")
79
80    slicc = SLICC(files[0], verbose=True, debug=opts.debug, traceback=opts.tb)
81
82    if opts.print_files:
83        for i in sorted(slicc.files()):
84            print('    %s' % i)
85    else:
86        output("Processing AST...")
87        slicc.process()
88
89        output("Writing C++ files...")
90        slicc.writeCodeFiles(opts.code_path)
91
92        if opts.html_path:
93            output("Writing HTML files...")
94            slicc.writeHTMLFiles(opts.html_path)
95
96    output("SLICC is Done.")
97
98if __name__ == "__main__":
99    main()
100