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			63 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			63 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
import re
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preprocessorRe = re.compile( r'\s*#.*' )
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fdefineRe = re.compile( r'\s*#\s*define\s*(\S*)\s*\(' ) # #defines that take arguments
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defineRe = re.compile( r'\s*#\s*define\s*(\S*)(\s+)(.*)' ) # all #defines
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undefRe = re.compile( r'\s*#\s*undef\s*(\S*)' ) # all #undefs
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ifdefCommonRe = re.compile( r'\s*#\s*if' ) # all #ifdefs
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ifdefRe = re.compile( r'\s*#\s*ifdef\s*(\S*)' )
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ifndefRe = re.compile( r'\s*#\s*ifndef\s*(\S*)' )
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endifRe = re.compile( r'\s*#\s*endif\s*//\s*(.*)' )
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elseRe = re.compile( r'\s*#\s*else' )
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ifRe = re.compile( r'\s*#\s*if\s+(.*)' )
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nsRe = re.compile( r'(.*?\s*\s*namespace\s+)(\w+)(\s*{?)(.*)' )
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nsCloseRe = re.compile( r'(.*\s*})(\s*\/\/\s*namespace\s+)(\w+)(\s*)(.*)' )
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class LineMapper:
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    def __init__( self, idMap, outerNamespace ):
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        self.idMap = idMap
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        self.outerNamespace = outerNamespace
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    # TBD:
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    #  #if, #ifdef, comments after #else
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    def mapLine( self, lineNo, line ):
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        for idFrom, idTo in self.idMap.items():
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            r = re.compile("(.*)" + idFrom + "(.*)")
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            m = r.match( line )
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            if m:
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                line = m.group(1) + idTo + m.group(2) + "\n"
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        m = nsCloseRe.match( line )
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        if m:
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            originalNs = m.group(3)
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            # print("[{0}] originalNs: '{1}' - closing".format(lineNo, originalNs))
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            # print( "  " + line )
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            # print( "  1:[{0}]\n  2:[{1}]\n  3:[{2}]\n  4:[{3}]\n  5:[{4}]".format( m.group(1), m.group(2), m.group(3), m.group(4), m.group(5) ) )
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            if originalNs in self.outerNamespace:
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                outerNs, innerNs = self.outerNamespace[originalNs]
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                return "{0}}}{1}{2}::{3}{4}{5}\n".format( m.group(1), m.group(2), outerNs, innerNs, m.group(4), m.group(5))
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        m = nsRe.match( line )
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        if m:
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            originalNs = m.group(2)
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            # print("[{0}] originalNs: '{1}'".format(lineNo, originalNs))
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            # print( "  " + line )
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            # print( "  1:[{0}]\n  2:[{1}]\n  3:[{2}]\n  4:[{3}]".format( m.group(1), m.group(2), m.group(3), m.group(4) ) )
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            if originalNs in self.outerNamespace:
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                outerNs, innerNs = self.outerNamespace[originalNs]
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                return "{0}{1} {{ namespace {2}{3}{4}\n".format( m.group(1), outerNs, innerNs, m.group(3), m.group(4) )
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        return line
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    def mapFile(self, filenameIn, filenameOut ):
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        print( "Embedding:\n  {0}\nas:\n  {1}".format( filenameIn, filenameOut ) )
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        with open( filenameIn, 'r' ) as f, open( filenameOut, 'w' ) as outf:
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            lineNo = 1
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            for line in f:
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                outf.write( self.mapLine( lineNo, line ) )
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                lineNo = lineNo + 1
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        print( "Written {0} lines".format( lineNo ) ) |