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-rwxr-xr-xtools/pxlasm.py796
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diff --git a/tools/pxlasm.py b/tools/pxlasm.py
new file mode 100755
index 000000000..a28c5e9f9
--- /dev/null
+++ b/tools/pxlasm.py
@@ -0,0 +1,796 @@
+#!/usr/bin/env python
+# Portions Copyright (C) 2001 Artifex Software Inc.
+#
+# This software is distributed under license and may not be copied, modified
+# or distributed except as expressly authorized under the terms of that
+# license. Refer to licensing information at http://www.artifex.com/ or
+# contact Artifex Software, Inc., 101 Lucas Valley Road #110,
+# San Rafael, CA 94903, (415)492-9861, for further information.
+#
+# TODO
+# array data should be wrapped.
+#
+# text data should be printed as a string not an array of ascii values.
+#
+# enumerations should printed we now print the ordinal value of the enumeration.
+#
+# make self.unpack endian like with binding
+
+# DIFFS between HP
+# Artifex reports the file offset of each operator HP does not.
+
+# for packing and unpacking binary data
+import re
+from struct import *
+import string
+
+DEBUG = 0
+
+
+# tags
+pxl_tags_dict = {
+ 'ArcPath' : 0x91,
+ 'BeginChar' : 0x52,
+ 'BeginFontHeader' : 0x4f,
+ 'BeginImage' : 0xb0,
+ 'BeginPage' : 0x43,
+ 'BeginRastPattern' : 0xb3,
+ 'BeginScan' : 0xb6,
+ 'BeginSession' : 0x41,
+ 'BeginStream' : 0x5b,
+ 'BeginUserDefinedLineCap' : 0x82,
+ 'BezierPath' : 0x93,
+ 'BezierRelPath' : 0x95,
+ 'Chord' : 0x96,
+ 'ChordPath' : 0x97,
+ 'CloseDataSource' : 0x49,
+ 'CloseSubPath' : 0x84,
+ 'Comment' : 0x47,
+ 'Ellipse' : 0x98,
+ 'EllipsePath' : 0x99,
+ 'EndChar' : 0x54,
+ 'EndFontHeader' : 0x51,
+ 'EndImage' : 0xb2,
+ 'EndPage' : 0x44,
+ 'EndRastPattern' : 0xb5,
+ 'EndScan' : 0xb8,
+ 'EndSession' : 0x42,
+ 'EndStream' : 0x5d,
+ 'EndUserDefinedLineCaps' : 0x83,
+ 'ExecStream' : 0x5e,
+ 'LinePath' : 0x9b,
+ 'LineRelPath' : 0x9d,
+ 'NewPath' : 0x85,
+ 'OpenDataSource' : 0x48,
+ 'PaintPath' : 0x86,
+ 'Passthrough' : 0xbf,
+ 'Pie' : 0x9e,
+ 'PiePath' : 0x9f,
+ 'PopGS' : 0x60,
+ 'PushGS' : 0x61,
+ 'ReadChar' : 0x53,
+ 'ReadFontHeader' : 0x50,
+ 'ReadImage' : 0xb1,
+ 'ReadRastPattern' : 0xb4,
+ 'ReadStream' : 0x5c,
+ 'Rectangle' : 0xa0,
+ 'RectanglePath' : 0xa1,
+ 'RemoveFont' : 0x55,
+ 'RemoveStream' : 0x5f,
+ 'RoundRectangle' : 0xa2,
+ 'RoundRectanglePath' : 0xa3,
+ 'ScanLineRel' : 0xb9,
+ 'SetAdaptiveHalftoning' : 0x94,
+ 'SetBrushSource' : 0x63,
+ 'SetCharAttributes' : 0x56,
+ 'SetCharAngle' : 0x64,
+ 'SetCharBoldValue' : 0x7d,
+ 'SetCharScale' : 0x65,
+ 'SetCharShear' : 0x66,
+ 'SetCharSubMode' : 0x81,
+ 'SetClipIntersect' : 0x67,
+ 'SetClipMode' : 0x7f,
+ 'SetClipRectangle' : 0x68,
+ 'SetClipReplace' : 0x62,
+ 'SetClipToPage' : 0x69,
+ 'SetColorSpace' : 0x6a,
+ 'SetColorTrapping' : 0x92,
+ 'SetColorTreatment' : 0x58,
+ 'SetCursor' : 0x6b,
+ 'SetCursorRel' : 0x6c,
+ 'SetDefaultGS' : 0x57,
+ 'SetHalftoneMethod' : 0x6d,
+ 'SetFillMode' : 0x6e,
+ 'SetFont' : 0x6f,
+ 'SetHalftoneMethod' : 0x6d,
+ 'SetLineCap' : 0x71,
+ 'SetLineDash' : 0x70,
+ 'SetLineJoin' : 0x72,
+ 'SetMiterLimit' : 0x73,
+ 'SetNeutralAxis' : 0x7e,
+ 'SetPageDefaultCTM' : 0x74,
+ 'SetPageOrigin' : 0x75,
+ 'SetPageRotation' : 0x76,
+ 'SetPageScale' : 0x77,
+ 'SetPathToClip' : 0x80,
+ 'SetPatternTxMode' : 0x78,
+ 'SetPenSource' : 0x79,
+ 'SetPenWidth' : 0x7a,
+ 'SetROP' : 0x7b,
+ 'SetSourceTxMode' : 0x7c,
+ 'Text' : 0xa8,
+ 'TextPath' : 0xa9,
+ 'VendorUnique' : 0x46,
+ 'attr_ubyte' : 0xf8,
+ 'attr_uint16' : 0xf9,
+ 'embedded_data' : 0xfa,
+ 'embedded_data_byte' : 0xfb,
+ 'real32' : 0xc5,
+ 'real32_array' : 0xcd,
+ 'real32_box' : 0xe5,
+ 'real32_xy' : 0xd5,
+ 'sint16' : 0xc3,
+ 'sint16_array' : 0xcb,
+ 'sint16_box' : 0xe3,
+ 'sint16_xy' : 0xd3,
+ 'sint32' : 0xc4,
+ 'sint32_array' : 0xcc,
+ 'sint32_box' : 0xe4,
+ 'sint32_xy' : 0xd4,
+ 'ubyte' : 0xc0,
+ 'ubyte_array' : 0xc8,
+ 'ubyte_box' : 0xe0,
+ 'ubyte_xy' : 0xd0,
+ 'uint16' : 0xc1,
+ 'uint16_array' : 0xc9,
+ 'uint16_box' : 0xe1,
+ 'uint16_xy' : 0xd1,
+ 'uint32' : 0xc2,
+ 'uint32_array' : 0xca,
+ 'uint32_box' : 0xe2,
+ 'uint32_xy' : 0xd2
+}
+
+pxl_enumerations_dict = {
+ 'ArcDirection' : [ 'eClockWise=0', 'eCounterClockWise=1' ],
+ 'BackCh' : ['eErrorPage=0'], # deprecated.
+ 'CharSubModeArray' : [ 'eNoSubstitution=0', 'eVerticalSubstitution=1' ],
+ 'ClipMode' : ['eNonZeroWinding=0', 'eEvenOdd=1' ],
+ 'ClipRegion' : ['eInterior=0', 'eExterior=1'],
+ 'ColorDepth' : [ 'e1Bit=0', 'e4Bit=1', 'e8Bit=2' ],
+ 'ColorMapping' : [ 'eDirectPixel=0', 'eIndexedPixel=1' ],
+ 'ColorSpace' : [ 'eGray=1', 'eRGB=2', 'eSRGB=3' ], # srgb deprecated
+ 'ColorTreatment' : [ 'eNoTreatment=0', 'eScreenMatch=1', 'eVivid=2' ],
+ 'CompressMode' : [ 'eNoCompression=0', 'eRLECompression=1',
+ 'eJPEGCompression=2', 'eDeltaRowCompression=3' ],
+ 'DataOrg' : [ 'eBinaryHighByteFirst=0', 'eBinaryLowByteFirst=1' ],
+ 'DataSource' : [ 'eDefault=0' ],
+ 'DataType' : [ 'eUByte=0', 'eSByte=1', 'eUint16=2', 'eSint16=3' ],
+ 'DitherMatrix' : [ 'eDeviceBest=0' ],
+ 'DuplexPageMode' : [ 'eDuplexHorizontalBinding=0', 'eDuplexVerticalBinding=1' ],
+ 'DuplexPageSide' : [ 'eFrontMediaSide=0', 'eBackMediaSide=1' ],
+ 'ErrorReport' : ['eNoReporting=0', 'eBackChannel=1', 'eErrorPage=2',
+ 'eBackChAndErrPage=3', 'eNWBackChannel=4', 'eNWErrorPage=5',
+ 'eNWBackChAndErrPage=6' ],
+ 'FillMode' : ['eNonZeroWinding=0', 'eEvenOdd=1' ],
+ 'LineJoineMiterJoin' : [ 'eRoundJoin=0', 'eBevelJoin=1', 'eNoJoin=2' ],
+ 'MediaSource' : [ 'eDefaultSource=0', 'eAutoSelect=1', 'eManualFeed=2',
+ 'eMultiPurposeTray=3', 'eUpperCassette=4', 'eLowerCassette=5',
+ 'eEnvelopeTray=6', 'eThirdCassette=7', 'External Trays=8-255' ],
+ 'MediaDestination' : [ 'eDefaultDestination=0', 'eFaceDownBin=1', 'eFaceUpBin=2',
+ 'eJobOffsetBin=3', 'External Bins=5-255' ],
+ 'LineCapStyle' : [ 'eButtCap=0' 'eRoundCap=1', 'eSquareCap=2', 'eTriangleCap=3' ],
+ 'LineJoin' : [ 'eMiterJoin=0', 'eRoundJoin=1', 'eBevelJoin=2', 'eNoJoin=3' ],
+ 'Measure' : [ 'eInch=0', 'eMillimeter=1', 'eTenthsOfAMillimeter=2' ],
+ 'MediaSize' : [ 'eDefault = 96', 'eLetterPaper=0', 'eLegalPaper=1', 'eA4Paper=2',
+ 'eExecPaper=3', 'eLedgerPaper=4', 'eA3Paper=5',
+ 'eCOM10Envelope=6', 'eMonarchEnvelope=7', 'eC5Envelope=8',
+ 'eDLEnvelope=9', 'eJB4Paper=10', 'eJB5Paper=11', 'eB5Paper=13',
+ 'eB5Envelope=12', 'eJPostcard=14', 'eJDoublePostcard=15',
+ 'eA5Paper=16', 'eA6Paper=17', 'eJBPaper=18', 'JIS8K=19',
+ 'JIS16K=20', 'JISExec=21' ],
+ 'Orientation' : ['ePortraitOrientation=0', 'eLandscapeOrientation=1',
+ 'eReversePortrait=2', 'eReverseLandscape=3',
+ 'eDefaultOrientation=4' ],
+ 'PatternPersistence' : [ 'eTempPattern=0', 'ePagePattern=1', 'eSessionPattern=2'],
+ 'SimplexPageMode' : ['eSimplexFrontSide=0'],
+ 'TxMode' : [ 'eOpaque=0', 'eTransparent=1' ],
+ 'WritingMode' : [ 'eHorizontal=0', 'eVertical=1' ]
+}
+
+pxl_attribute_name_to_attribute_number_dict = {
+ 'AllObjectTypes' : 29,
+ 'ArcDirection' : 65,
+ 'BlockByteLength' : 111,
+ 'BlockHeight' : 99,
+ 'BoundingBox' : 66,
+ 'ColorimetricColorSpace': 17, # deprecated
+ 'CharAngle' : 161,
+ 'CharBoldValue' : 177,
+ 'CharCode' : 162,
+ 'CharDataSize' : 163,
+ 'CharScale' : 164,
+ 'CharShear' : 165,
+ 'CharSize' : 166,
+ 'CharSubModeArray' : 172,
+ 'ClipMode' : 84,
+ 'ClipRegion' : 83,
+ 'ColorDepth' : 98,
+ 'ColorMapping' : 100,
+ 'ColorSpace' : 3,
+ 'ColorTreatment' : 120,
+ 'CommentData' : 129,
+ 'CompressMode' : 101,
+ 'ControlPoint1' : 81,
+ 'ControlPoint2' : 82,
+ 'CRGBMinMax' : 20, # deprecated
+ 'CustomMediaSize' : 47,
+ 'CustomMediaSizeUnits' : 48,
+ 'DashOffset' : 67,
+ 'DataOrg' : 130,
+ 'DestinationBox' : 102,
+ 'DestinationSize' : 103,
+ 'DeviceMatrix' : 33,
+ 'DitherMatrixDataType' : 34,
+ 'DitherMatrixDepth' : 51,
+ 'DitherMatrixSize' : 50,
+ 'DitherOrigin' : 35,
+ 'DuplexPageMode' : 53,
+ 'DuplexPageSide' : 54,
+ 'EllipseDimension' : 68,
+ 'EndPoint' : 69,
+ 'ErrorReport' : 143,
+ 'FillMode' : 70,
+ 'FontFormat' : 169,
+ 'FontHeaderLength' : 167,
+ 'FontName' : 168,
+ 'GammaGain' : 21, # deprecated.
+ 'GrayLevel' : 9,
+ 'LineCapStyle' : 71,
+ 'LineDashStyle' : 74,
+ 'LineJoinStyle' : 72,
+ 'Measure' : 134,
+ 'MediaDestination' : 36,
+ 'MediaSize' : 37,
+ 'MediaSource' : 38,
+ 'MediaType' : 39,
+ 'MiterLength' : 73,
+ 'NewDestinationSize' : 13,
+ 'NullBrush' : 4,
+ 'NullPen' : 5,
+ 'NumberOfPoints' : 77,
+ 'NumberOfScanLines' : 115,
+ 'Orientation' : 40,
+ 'PCLSelectFont' : 173,
+ 'PadBytesMultiple' : 110,
+ 'PageAngle' : 41,
+ 'PageCopies' : 49,
+ 'PageOrigin' : 42,
+ 'PageScale' : 43,
+ 'PaletteData' : 6,
+ 'PaletteDepth' : 2,
+ 'PatternDefineID' : 105,
+ 'PatternOrigin' : 12,
+ 'PatternPersistence' : 104,
+ 'PatternSelectID' : 8,
+ 'PenWidth' : 75,
+ 'Point' : 76,
+ 'PointType' : 80,
+ 'PrimaryArray' : 14,
+ 'PrimaryDepth' : 15,
+ 'RGBColor' : 11,
+ 'ROP3' : 44,
+ 'RasterObjects' : 32,
+ 'SimplexPageMode' : 52,
+ 'SolidLine' : 78,
+ 'SourceHeight' : 107,
+ 'SourceType' : 136,
+ 'SourceWidth' : 108,
+ 'StartLine' : 109,
+ 'StartPoint' : 79,
+ 'StreamDataLength' : 140,
+ 'StreamName' : 139,
+ 'SymbolSet' : 170,
+ 'TextData' : 171,
+ 'TextObjects' : 30,
+ 'TxMode' : 45,
+ 'UnitsPerMeasure' : 137,
+ 'VectorObjects' : 31,
+ 'VUExtension' : 145,
+ 'VUAttr' : 147,
+ 'WhiteReferencePoint' : 19, # deprecated.
+ 'WritingMode' : 173, # deprecated.
+ 'XSpacingData' : 175,
+ 'XYChromaticities' : 18, # deprecated.
+ 'YSpacingData' : 176,
+}
+
+class pxl_asm:
+
+ def __init__(self, data):
+ # ` HP-PCL XL;3;0
+ index = data.index("` HP-PCL XL;")
+ data = data[index:]
+ self.data = data
+ # parse out data order and protocol
+ self.binding = data[0]
+ self.protocol = data[12]
+ self.revision = data[14]
+
+ # pointer to data
+ self.index = 0
+ # NB this screws up file indexing - remove all comments
+ self.data = re.sub( '\/\/.*\n', '', self.data )
+
+ # print out big endian protocol and revision. NB should check
+ # revisions are the same.
+ print "\033%-12345X@PJL ENTER LANGUAGE = PCLXL"
+ print ") HP-PCL XL;" + self.protocol + ";" + self.revision
+
+ # skip over protocol and revision
+ while( data[self.index] != '\n' ):
+ self.index = self.index + 1
+ self.index = self.index + 1
+
+ # saved size of last array parsed
+ self.size_of_array = -1;
+ self.pack_string = ""
+
+ # dictionary of streams keyed by stream name
+ self.user_defined_streams = {}
+
+ # the n'th operator in the stream
+ self.operator_position = 0
+ self.__verbose = DEBUG
+
+ # the file must be ascii encode to assemble.
+ if (self.binding != '`'):
+ raise(SyntaxError)
+
+ # output is always little endian.
+ self.assembled_binding = '<'
+
+ def nullAttributeList(self):
+ return 0
+
+ # does not consume the string
+ def next_string(self):
+ index = self.index
+ while self.data[index] in string.whitespace: index = index + 1
+ start = index
+ while self.data[index] not in string.whitespace: index = index + 1
+ end = index
+ return self.data[start:end]
+
+ def consume_next_string(self):
+ while self.data[self.index] in string.whitespace:
+ self.index = self.index + 1
+ while self.data[self.index] not in string.whitespace:
+ self.index = self.index + 1
+
+ # redefine pack to handle endianness
+ def pack(self, format, *data):
+ for args in data:
+ try:
+ sys.stdout.write(pack(self.assembled_binding + format, args))
+ except:
+ sys.stderr.write("assemble failed at: ")
+ # dump surrounding context.
+ sys.stderr.write(self.data[self.index:self.index+40])
+ sys.stderr.write("\n")
+ raise
+ # implicitly read when parsing the tag
+ def attributeIDValue(self):
+ return 1
+
+ # search for next expected tag "tag" and print its hex value.
+ def getTag(self, tag):
+ new_tag = self.next_string()
+ if ( new_tag == tag ):
+ self.consume_next_string()
+ self.pack( "B", pxl_tags_dict[tag] )
+ return 1
+
+ return 0
+
+ # get the next operator
+ def operatorTag(self):
+ tag = self.next_string()
+ if ( not self.is_Embedded(tag) ):
+ self.operator_position = self.operator_position + 1
+ if ( tag in pxl_tags_dict.keys() ):
+ self.pack( 'B', pxl_tags_dict[tag] )
+ self.consume_next_string()
+ # handle special cases
+ if ( self.is_Embedded(tag) ):
+ self.process_EmbeddedInfo(tag)
+ return 1
+ return 0
+
+ def Tag_ubyte(self):
+ if ( self.getTag( 'ubyte' ) ):
+ self.pack_string = 'B'
+ return 1
+ return 0
+
+ def Tag_sint16(self):
+ if ( self.getTag( 'sint16' ) ):
+ self.pack_string = 'h'
+ return 1
+ return 0
+
+ def Tag_uint16(self):
+ if ( self.getTag( 'uint16' ) ):
+ self.pack_string = 'H'
+ return 1
+ return 0
+
+ def Tag_sint32(self):
+ if ( self.getTag( 'sint32' ) ):
+ self.pack_string = 'l'
+ return 1
+ return 0
+
+ def Tag_uint32(self):
+ if ( self.getTag( 'uint32' ) ):
+ self.pack_string = 'L'
+ return 1
+ return 0
+
+ def Tag_real32(self):
+ if ( self.getTag( 'real32' ) ):
+ self.pack_string = 'f'
+ return 1
+ return 0
+
+ def consume_to_char_plus_one(self, chr):
+ while (self.data[self.index:self.index+len(chr)] != chr):
+ self.index = self.index + 1
+ self.index = self.index + len(chr)
+
+ def Tag_ubyte_array(self):
+ if ( self.getTag( 'ubyte_array' ) ):
+ self.consume_to_char_plus_one('[')
+ self.pack_string = 'B'
+ return 1
+ return 0
+
+ def Tag_uint16_array(self):
+ if ( self.getTag( 'uint16_array' ) ):
+ self.pack_string = 'H'
+ self.consume_to_char_plus_one('[')
+ return 1
+ return 0
+
+ def Tag_sint16_array(self):
+ if ( self.getTag( 'sint16_array' ) ):
+ self.pack_string = 'h'
+ self.consume_to_char_plus_one('[')
+ return 1
+ return 0
+
+ def Tag_uint32_array(self):
+ if ( self.getTag( 'uint32_array' ) ):
+ self.pack_string = 'L'
+ self.consume_to_char_plus_one('[')
+ return 1
+ return 0
+
+ def Tag_sint32_array(self):
+ if ( self.getTag( 'sint32_array' ) ):
+ self.pack_string = 'l'
+ self.consume_to_char_plus_one('[')
+ return 1
+ return 0
+
+ def Tag_real32_array(self):
+ if ( self.getTag( 'real32_array' ) ):
+ self.pack_string = 'f'
+ self.consume_to_char_plus_one('[')
+ return 1
+ return 0
+
+ def Tag_ubyte_xy(self):
+ if ( self.getTag( 'ubyte_xy' ) ):
+ self.pack('B', self.next_num(), self.next_num())
+ return 1
+ return 0
+
+ def Tag_uint16_xy(self):
+ if ( self.getTag( 'uint16_xy' ) ):
+ self.pack('H', self.next_num(), self.next_num())
+ return 1
+ return 0
+
+ def Tag_sint16_xy(self):
+ if ( self.getTag( 'sint16_xy' ) ):
+ self.pack('h', self.next_num(), self.next_num())
+ return 1
+ return 0
+
+ def Tag_uint32_xy(self):
+ if ( self.getTag( 'uint32_xy' ) ):
+ self.pack('L', self.next_num(), self.next_num())
+ return 1
+ return 0
+
+ def Tag_sint32_xy(self):
+ if ( self.getTag( 'sint32_xy' ) ):
+ self.pack('l', self.next_num(), self.next_num())
+ return 1
+ return 0
+
+ def Tag_real32_xy(self):
+ if ( self.getTag( 'real32_xy' ) ):
+ self.pack('f', self.next_num(), self.next_num())
+ return 1
+ return 0
+
+ def Tag_ubyte_box(self):
+ if ( self.getTag( 'ubyte_box' ) ):
+ self.pack('B', self.next_num(), self.next_num(),
+ self.next_num(), self.next_num())
+ return 1
+ return 0
+
+ def Tag_uint16_box(self):
+ if ( self.getTag( 'uint16_box' ) ):
+ self.pack('H', self.next_num(), self.next_num(),
+ self.next_num(), self.next_num())
+ return 1
+ return 0
+
+ def Tag_sint16_box(self):
+ if ( self.getTag( 'sint16_box' ) ):
+ self.pack('h', self.next_num(), self.next_num(),
+ self.next_num(), self.next_num())
+ return 1
+ return 0
+
+ def Tag_uint32_box(self):
+ if ( self.getTag( 'uint32_box' ) ):
+ self.pack('L', self.next_num(), self.next_num(),
+ self.next_num(), self.next_num())
+ return 1
+ return 0
+
+ def Tag_sint32_box(self):
+ if ( self.getTag( 'sint32_box' ) ):
+ self.pack('l', self.next_num(), self.next_num(),
+ self.next_num(), self.next_num())
+ return 1
+ return 0
+
+ def Tag_real32_box(self):
+ if ( self.getTag( 'real32_box' ) ):
+ self.pack('f', self.next_num(), self.next_num(),
+ self.next_num(), self.next_num())
+ return 1
+ return 0
+
+ # check for embedded tags.
+ def is_Embedded(self, name):
+ return ( name == 'embedded_data' or name == 'embedded_data_byte' )
+
+ def process_EmbeddedInfo(self, name):
+ # skip over the
+ # finally write the list
+ self.consume_to_char_plus_one( '[' )
+ number_list = []
+ while (1):
+ num = self.next_hex_num()
+ # trick - num will fail on ']'
+ if (num != None):
+ number_list.append(num)
+ else:
+ break
+ # write the length of the list as the embedded data's size
+ if ( name == 'embedded_data' ):
+ format = 'L'
+ else:
+ format = 'B'
+ self.pack(format, len(number_list))
+ # NB needs wrapping
+ for num in number_list:
+ self.pack( 'B', num )
+
+ def Tag_attr_ubyte(self):
+ tag = self.next_string()
+ if ( tag in pxl_attribute_name_to_attribute_number_dict.keys() ):
+ self.pack( 'B', pxl_tags_dict['attr_ubyte'] )
+ self.pack( 'B', pxl_attribute_name_to_attribute_number_dict[tag] )
+ self.consume_next_string()
+ # handle special cases
+ if ( self.is_Embedded(tag) ):
+ self.process_EmbeddedInfo(tag)
+ return 1
+ return 0
+
+ def Tag_attr_uint16(self):
+ if ( self.getTag( 'attr_uint16' ) ):
+ print "Attribute tag uint16 # NOT IMPLEMENTED #", self.pack('HH', self.data[self.index] )
+ self.index = self.index + 2
+ return 1
+ return 0
+
+ def attributeID(self):
+ return (self.Tag_attr_ubyte() or self.Tag_attr_uint16()) and self.attributeIDValue()
+
+ # return the start and end position of the next string
+ def next_token(self):
+ # token begins or end on a line
+ while self.data[self.index] in string.whitespace:
+ self.index = self.index + 1
+ start = self.index
+ while self.data[self.index] not in string.whitespace:
+ self.index = self.index + 1
+ end = self.index
+ pos = start
+ # return offset within the line of the start of the token.
+ # Useful for assembling hex format.
+ while (self.data[pos] != '\n'):
+ if pos == 0:
+ break
+ pos -= 1
+ return self.data[start:end], start-pos-1
+
+ def next_hex_num(self):
+ num_str, offset = self.next_token()
+ # end of data
+ if ( offset == 0 and num_str == ']' ):
+ return None
+
+ # offset or ascii columns
+ if ( offset < 7 or offset > 57 ):
+ return self.next_hex_num()
+
+ # hex number
+ return string.atoi(num_str, 16)
+
+ def next_num(self):
+ # no checking.
+ num_str, offset = self.next_token()
+ try:
+ num = string.atoi(num_str)
+ except ValueError:
+ try:
+ num = string.atof(num_str)
+ except:
+ num = None
+ return num
+
+ def singleValueType(self):
+ if ( self.Tag_ubyte() or self.Tag_uint16() or self.Tag_uint32() or \
+ self.Tag_sint16() or self.Tag_sint32() or self.Tag_real32() ):
+ self.pack(self.pack_string, self.next_num()),
+ return 1
+ return 0
+
+ def xyValueType(self):
+ return self.Tag_ubyte_xy() or self.Tag_uint16_xy() or self.Tag_uint32_xy() or \
+ self.Tag_sint16_xy() or self.Tag_sint32_xy() or self.Tag_real32_xy()
+
+ def boxValueType(self):
+ return self.Tag_ubyte_box() or self.Tag_uint16_box() or self.Tag_uint32_box() or \
+ self.Tag_sint16_box() or self.Tag_sint32_box() or self.Tag_real32_box()
+
+ def valueType(self):
+ return self.singleValueType() or self.xyValueType() or self.boxValueType()
+
+ # don't confuse the size of the type with the size of the elements
+ # in the array
+ def arraySizeType(self):
+ return (self.Tag_ubyte() or self.Tag_uint16())
+
+ def arraySize(self):
+ # save the old pack string for the type of the array, the data
+ # type for the size will replace it.
+ pack_string = self.pack_string
+ if ( self.arraySizeType() ):
+ self.size_of_array = self.next_num()
+ self.pack(self.pack_string, self.size_of_array)
+ # restore the pack string
+ self.pack_string = pack_string
+ return 1
+ return 0
+
+ def singleValueArrayType(self):
+ return self.Tag_ubyte_array() or self.Tag_uint16_array() or \
+ self.Tag_uint32_array() or self.Tag_sint16_array() or \
+ self.Tag_sint32_array() or self.Tag_real32_array()
+
+ def arrayType(self):
+ if (self.singleValueArrayType() and self.arraySize()):
+ hex_dump_format = (self.pack_string == 'B')
+ for num in range(0, self.size_of_array):
+ # reading byte data hex dump format
+ if hex_dump_format:
+ n = self.next_hex_num()
+ # not hex dump format
+ else:
+ n = self.next_num()
+ self.pack(self.pack_string, n)
+ if hex_dump_format:
+ self.consume_to_char_plus_one('\n]')
+ else:
+ self.consume_to_char_plus_one(']')
+ return 1
+ return 0
+
+ def dataType(self):
+ return( self.valueType() or self.arrayType() or self.boxValueType() )
+
+ # these get parsed when doing the tags
+ def numericValue(self):
+ return 1;
+
+ def attributeValue(self):
+ return( self.dataType() and self.numericValue() )
+
+ def singleAttributePair(self):
+ return( self.attributeValue() and self.attributeID() )
+
+ def multiAttributeList(self):
+ # NB should be many 1+ not sure how this get handled yet
+ return( self.singleAttributePair() )
+
+ def nullAttributeList(self):
+ return 0
+
+ def attributeList(self):
+ return (self.singleAttributePair() or self.multiAttributeList() or self.nullAttributeList())
+
+ def attributeLists(self):
+ # save the beginning of the attribute list even if it is
+ # empty. So we can report the position of the command.
+ self.begin_attribute_pos = self.index
+ # 0 or more attribute lists
+ while( self.attributeList() ):
+ continue
+ return 1
+
+ def UEL(self):
+ uel_string_1 = 'string*'
+ uel_string_2 = '-12345X'
+ tag = self.next_string()
+ if ( tag == uel_string_1 ):
+ self.consume_next_string()
+ # an approximate search
+ if ( string.find(self.data[self.index:], uel_string_2 ) >= 0 ):
+ self.consume_to_char_plus_one('X')
+ sys.stdout.write( "\033%-12345X" )
+ return 1
+ return 0
+
+ def operatorSequences(self):
+ while ( self.attributeLists() and self.operatorTag() ) or self.UEL():
+ continue
+
+ def assemble(self):
+ try:
+ self.operatorSequences()
+ # assume an index error means we have processed everything - ugly
+ except IndexError:
+ return
+ else:
+ sys.stderr.write("assemble failed\n")
+
+if __name__ == '__main__':
+ import sys
+
+ if not sys.argv[1:]:
+ print "Usage: %s pxl files" % sys.argv[0]
+
+ for file in sys.argv[1:]:
+ try:
+ fp = open(file, 'rb')
+ except:
+ sys.stderr.write("Cannot find file %s" % file)
+ continue
+ # read the whole damn thing. Removing comments and blank lines.
+ pxl_code = fp.read()
+ fp.close()
+
+ # initialize and assemble.
+ pxl_stream = pxl_asm(pxl_code)
+ pxl_stream.assemble()
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