mirror of
https://github.com/holub/mame
synced 2025-04-25 17:56:43 +03:00
153 lines
4.1 KiB
Python
153 lines
4.1 KiB
Python
#!/usr/bin/python
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##
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## license:BSD-3-Clause
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## copyright-holders:Vas Crabb
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import os
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import sys
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import xml.sax
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import xml.sax.saxutils
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import zlib
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class ErrorHandler(object):
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def __init__(self, **kwargs):
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super(ErrorHandler, self).__init__(**kwargs)
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self.errors = 0
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self.warnings = 0
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def error(self, exception):
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self.errors += 1
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sys.stderr.write('error: %s' % (exception))
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def fatalError(self, exception):
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raise exception
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def warning(self, exception):
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self.warnings += 1
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sys.stderr.write('warning: %s' % (exception))
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class Minifyer(object):
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def __init__(self, output, **kwargs):
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super(Minifyer, self).__init__(**kwargs)
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self.output = output
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self.incomplete_tag = False
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self.element_content = ''
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def setDocumentLocator(self, locator):
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pass
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def startDocument(self):
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self.output('<?xml version="1.0"?>')
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def endDocument(self):
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self.output('\n')
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def startElement(self, name, attrs):
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self.flushElementContent()
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if self.incomplete_tag:
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self.output('>')
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self.output('<%s' % (name))
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for name in attrs.getNames():
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self.output(' %s=%s' % (name, xml.sax.saxutils.quoteattr(attrs[name])))
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self.incomplete_tag = True
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def endElement(self, name):
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self.flushElementContent()
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if self.incomplete_tag:
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self.output('/>')
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else:
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self.output('</%s>' % (name))
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self.incomplete_tag = False
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def characters(self, content):
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self.element_content += content
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def ignorableWhitespace(self, whitespace):
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pass
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def processingInstruction(self, target, data):
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pass
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def flushElementContent(self):
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self.element_content = self.element_content.strip()
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if self.element_content:
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if self.incomplete_tag:
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self.output('>')
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self.incomplete_tag = False
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self.output(xml.sax.saxutils.escape(self.element_content))
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self.element_content = ''
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class XmlError(Exception):
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pass
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def compressLayout(src, dst, comp):
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state = [0, 0]
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def write(block):
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for ch in bytearray(block):
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if 0 == state[0]:
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dst('\t')
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elif 0 == (state[0] % 32):
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dst(',\n\t')
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else:
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dst(', ')
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state[0] += 1
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dst('%3u' % (ch))
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def output(text):
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block = text.encode('UTF-8')
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state[1] += len(block)
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write(comp.compress(block))
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error_handler = ErrorHandler()
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content_handler = Minifyer(output)
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parser = xml.sax.make_parser()
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parser.setErrorHandler(error_handler)
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parser.setContentHandler(content_handler)
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try:
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parser.parse(src)
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write(comp.flush())
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dst('\n')
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except xml.sax.SAXException as exception:
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print('fatal error: %s' % (exception))
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raise XmlError('Fatal error parsing XML')
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if (error_handler.errors > 0) or (error_handler.warnings > 0):
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raise XmlError('Error(s) and/or warning(s) parsing XML')
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return state[1], state[0]
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if __name__ == '__main__':
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if len(sys.argv) != 4:
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print('Usage:')
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print(' complay <source.lay> <output.h> <varname>')
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sys.exit(0 if len(sys.argv) <= 1 else 1)
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srcfile = sys.argv[1]
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dstfile = sys.argv[2]
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varname = sys.argv[3]
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comp_type = 1
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try:
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dst = open(dstfile,'w')
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dst.write('static const unsigned char %s_data[] = {\n' % (varname))
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byte_count, comp_size = compressLayout(srcfile, lambda x: dst.write(x), zlib.compressobj())
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dst.write('};\n\n')
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dst.write('const internal_layout %s = {\n' % (varname))
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dst.write('\t%d, sizeof(%s_data), %d, %s_data\n' % (byte_count, varname, comp_type, varname))
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dst.write('};\n')
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dst.close()
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except XmlError:
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dst.close()
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os.remove(dstfile)
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sys.exit(2)
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except IOError:
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sys.stderr.write("Unable to open output file '%s'\n" % dstfile)
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os.remove(dstfile)
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dst.close()
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sys.exit(3)
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