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Open Source Computer Vision Library
https://opencv.org/
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76 lines
2.2 KiB
76 lines
2.2 KiB
15 years ago
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import sys
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from pyparsing import Word, CharsNotIn, Optional, OneOrMore, ZeroOrMore, Group, ParseException, Literal, replaceWith
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import pyparsing
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help(pyparsing)
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class Argument:
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def __init__(self, s, loc, toks):
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self.str = toks[1]
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def __repr__(self):
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return "[%s]" % self.str
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def argfun(s, loc, toks):
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return Argument(s, loc, toks)
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class Parameter:
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def __init__(self, s, loc, toks):
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self.str = toks[1]
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def __repr__(self):
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return "{%s}" % self.str
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def paramfun(s, loc, toks):
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return Parameter(s, loc, toks)
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class TexCmd:
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def __init__(self, s, loc, toks):
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self.cmd = str(toks[0])[1:]
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#print 'cmd', self.cmd
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self.args = toks[1].asList()
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self.params = toks[2].asList()
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def __repr__(self):
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return self.cmd + "".join([repr(a) for a in self.args]) + "".join([repr(p) for p in self.params])
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class ZeroOrMoreAsList(ZeroOrMore):
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def __init__(self, *args):
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ZeroOrMore.__init__(self, *args)
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def listify(s, loc, toks):
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return [toks]
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self.setParseAction(listify)
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arg = '[' + CharsNotIn("]") + ']'
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arg.setParseAction(argfun)
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param = '{' + Optional(CharsNotIn("}")) + '}'
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param.setParseAction(paramfun)
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texcmd = Word("\\", "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789") + ZeroOrMoreAsList(arg) + ZeroOrMoreAsList(param)
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def texcmdfun(s, loc, toks):
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if str(toks[0])[1:] == 'input':
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filename = toks[2].asList()[0].str + "-py.tex"
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print 'Now parsing', filename
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return parsefile(filename)
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else:
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return TexCmd(s, loc, toks)
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texcmd.setParseAction(texcmdfun)
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legal = "".join([chr(x) for x in set(range(32, 127)) - set("\\")])
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document = ZeroOrMore(texcmd | Word(legal)) + Literal(chr(127)).suppress()
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def parsefile(filename):
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f = open(filename, "rt")
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lines = list(f)
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def uncomment(s):
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if '%' in s:
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return s[:s.index('%')] + '\n'
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else:
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return s
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lines = [uncomment(l) for l in lines]
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docstr = "".join(lines) + chr(127)
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# document.setFailAction(None)
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return document.parseString(docstr)
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for x in parsefile(sys.argv[1]):
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if isinstance(x, TexCmd):
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if x.cmd == 'chapter':
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print repr(x)
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