1992-03-02 12:20:32 -04:00
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#! /usr/local/python
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# Read #define's from stdin and translate to Python code on stdout.
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# Very primitive: non-#define's are ignored, no check for valid Python
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# syntax is made -- you will have to edit the output in most cases.
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# XXX To do:
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# - accept filename arguments
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# - turn trailing C comments into Python comments
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# - turn C string quotes into Python comments
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# - turn C Boolean operators "&& || !" into Python "and or not"
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# - what to do about #if(def)?
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# - what to do about macros with parameters?
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# - reject definitions with semicolons in them
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import sys, regex, string
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p_define = regex.compile('^#[\t ]*define[\t ]+\([a-zA-Z0-9_]+\)[\t ]+')
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1992-06-05 12:13:53 -03:00
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p_comment = regex.compile('/\*\([^*]+\|\*+[^/]\)*\(\*+/\)?')
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1992-03-02 12:20:32 -04:00
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def main():
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process(sys.stdin)
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def process(fp):
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lineno = 0
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while 1:
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line = fp.readline()
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if not line: break
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lineno = lineno + 1
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if p_define.match(line) >= 0:
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# gobble up continuation lines
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while line[-2:] == '\\\n':
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nextline = fp.readline()
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if not nextline: break
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lineno = lineno + 1
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line = line + nextline
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regs = p_define.regs
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a, b = regs[1] # where the macro name is
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name = line[a:b]
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a, b = regs[0] # the whole match
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body = line[b:]
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# replace comments by spaces
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while p_comment.search(body) >= 0:
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a, b = p_comment.regs[0]
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body = body[:a] + ' ' + body[b:]
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print name, '=', string.strip(body)
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main()
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