struct_2_log

import sys
import os.path
import re

if len( sys.argv ) < 2:
    sys.exit( "usage: " + os.path.split( sys.argv[ 0 ] )[ 1 ] + " <h-file>" )

rgStructName = re.compile( r"struct\s+([a-zA-Z0-9_]+)" )
insideComment = False
insideStruct = False
structName = ""
formatStr = ""
argsStr = ""
firstField = True

hFile = open( sys.argv[ 1 ], "rt" )
outFileName = os.path.splitext( sys.argv[ 1 ] )[ 0 ] + "_logging.h"
outFile = open( outFileName, "wt" )
for line in hFile:
    line = line.strip()
    if line.startswith( "//" ):
        continue
    if not insideComment:
        if line.startswith( "/*" ):
            insideComment = True
    if line.endswith( "*/" ):
        insideComment = False
        continue
    if insideComment:
        continue

    if not insideStruct:
        m = rgStructName.search( line )
        if m != None:
            insideStruct = True
            structName = m.group( 1 )
            formatStr = "#define " + structName.upper() + "_FORMAT \""
            argsStr = "#define " + structName.upper() + "_ARGS(p) "
            firstField = True
    else:
        if line.find( "}" ) != -1:
            insideStruct = False
            formatStr += "\""
            print formatStr
            print argsStr
            outFile.write( formatStr + "\n" )
            outFile.write( argsStr + "\n" )
        else:
            dtPos = line.find( ";" )
            if dtPos != -1:
                line = line[ : dtPos ]
            isPointer = False
            starPos = line.find( "*" )
            if starPos != -1:
                isPointer = True
                line = "".join( line.split( "*" ) )
            isArray = False
            pos_arr0 = line.find( "[" )
            pos_arr1 = line.find( "]" )
            if pos_arr0 != -1 and pos_arr1 != -1:
                isArray = True
                line = line[ : pos_arr0 ];
            words = line.split()
            isStruct = "struct" in words
            if ( isStruct or "void" in words ) and not isPointer:
                continue
            if isStruct:
                del words[ 0 ]
            if words[ 0 ] == "const":
                del words[ 0 ]
            isUnsigned = words[ 0 ] == "unsigned"
            if isUnsigned:
                del words[ 0 ]
            fmt = ""
            if isArray:
                if words[ 0 ] == "char":
                    fmt = "%s"
                else:
                    continue
            elif isPointer:
                fmt = "%s" if words[ 0 ] == "char" else "%p"
            elif words[ 0 ] == "int" or words[ 0 ] == "short":
                fmt = "%ui" if isUnsigned else "%i"
            elif words[ 0 ] == "long":
                if words[ 1 ] == "long":
                    fmt = "%llui" if isUnsigned else "%lli"
                    del words[ 0 ]
                else:
                    fmt = "%lui" if isUnsigned else "%li"
            elif words[ 0 ] == "float":
                fmt = "%f"
            elif words[ 0 ] == "double":
                fmt = "%lf"
            fieldName = words[ 1 ]
            if not firstField:
                formatStr += ", "
                argsStr += ", "
            formatStr += fieldName + "=" + fmt
            argsStr += "(p)->" + fieldName
            firstField = False