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SFNTWriterDirectoryEntryWOFFFlavorDatasfntDirectoryFormatsfntDirectorySizeSFNTDirectoryEntrysfntDirectoryEntrySize calcChecksum) ttProgram_g_l_y_fzfontTools.ttLib.woff2FTc @ sL e Zd ZdZdddZdd Zdd Zdd d Zd
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zWOFF2Writer.__init__c C sb || j krtd| |dkr0| jd8 _dS | j }t||_t|j|_||_|| j |< dS )z4Associate new entry named 'tag' with raw table data.zcannot rewrite '%s' tableZDSIGr N) r. r r0 r r r2 getKnownTagIndexflagsr? )r= r2 r? rA rB rB rC __setitem__ s
zWOFF2Writer.__setitem__c C s t | j| jkr(td| jt | jf | jdkr8d}n| jdkrHd}ntd|rvd| jjkrvd| jkrv| jd d
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| j dS )zN All tags must have been specified. Now write the table data and directory.
z-wrong number of tables; expected %d, found %d trueTOTTOFz1Not a TrueType or OpenType font (bad sfntVersion)rJ r )rK )moder )sizeN)rq rr ) r+ r. r0 r rj r; r[ _normaliseGlyfAndLoca_setHeadTransformFlagr sorteditems#_calcSFNTChecksumsLengthsAndOffsetsZ
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zWOFF2Writer.closer c C sN | j dkrdS xdD ]}| j| qW || jd _xdD ]}| j| q8W dS ) z Recompile glyf and loca tables, aligning glyph offsets to multiples of
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compiling loca.
rs NrX rZ rL rJ )rX rZ rL rJ )rJ rL )rj r\ r< rK
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z!WOFF2Writer._normaliseGlyfAndLocac C s, | j d | jd jdO _| jd dS )z Set bit 11 of 'head' table flags to indicate that the font has undergone
a lossless modifying transform. Re-compile head table data.rZ r Ni )r\ r< ro r )r= rB rB rC rw s
z!WOFF2Writer._setHeadTransformFlagc C s t |}|| jkr td| | jj|r.dS | j| j}|dkrHt}n$|dkrVt}n|dkrdt}nt |}||}|| jj|< |j
|| j dS )zB Fetch table data, decompile it, and store it inside self.ttFont. zmissing required table: %sNrL rJ rM ) r r. r r< r_ r? rR rS r] r r` )r= r2 r? ra rb rB rB rC r\ s
zWOFF2Writer._decompileTablec C s | j | j| j | j| _dS )z5 Compile table and store it in its 'data' attribute. N)r< rU r. r? )r= r2 rB rB rC r 0 s zWOFF2Writer._compileTablec C s t tt| j }xt| jj D ]f\}}|j}||_t||_|dkrht|dd d |dd |_ n
t||_ ||jd d@ 7 }q W |S )z Compute the 'original' SFNT checksums, lengths and offsets for checksum
adjustment calculation. Return the total size of the uncompressed font.
rZ N s )
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z/WOFF2Writer._calcSFNTChecksumsLengthsAndOffsetsc C s | j j}xt| jj D ]f\}}d}||kr@| j|}|dk r@d|_|dkrT|j}d|_| j|_|j | j
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}|S )z Return transformed font data.NTF)r; r[ r. ry transformTablerF r? rm r3 ZsaveDatar8 r4 writeMasterChecksumgetvalue)r= r[ r2 rA r? r rB rB rC r{ D s
z WOFF2Writer._transformTablesc C s |dkrd}n|dkrFxd
D ]}| j | q W | jd }|j| j}nR|dkrd| jkr\dS xd D ]}| j | qbW | jd }|j| j}n td | |S ) zReturn transformed table data, or None if some pre-conditions aren't
met -- in which case, the non-transformed table data will be used.
rL rJ rX rZ rM NrY z#Transform for table '%s' is unknown)rX rZ rL rJ )rX rZ rY rL rJ rM )r\ r< transformr. r )r= r2 r? rV r^ rB rB rC r X s
zWOFF2Writer.transformTablec C s t | jj }g }x*tt|D ]}|j| j|| j q W t| jd\| _ | _
| _ t j
t| }t| jj }xB|D ]:\}}t }|j|_|j|_|j|_|j|_||j }qvW tt| jt } | t|kst|jt| t |d@ }
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d@ } | S )z Calculate checkSumAdjustment. l l /ac ) listr. keysr/ r+ appendr r r0 Z searchRangeZ
entrySelectorZ
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directory_endZchecksumchecksumadjustmentrB rB rC _calcMasterChecksumn s( z WOFF2Writer._calcMasterChecksumc C s8 | j }| jj| jd jd | jjtjd| dS )z0Write checkSumAdjustment to the transformBuffer.rZ r z>LN)r r8 r( r. r3 r structr )r= r rB rB rC r s z WOFF2Writer.writeMasterChecksumc C sN | j }x"| jj D ]}|t|j 7 }qW || j7 }|d d@ }| j|}|S )zLCalculate total size of WOFF2 font, including any meta- and/or private data.r r )rl r. valuesr+ r r5 _calcFlavorDataOffsetsAndSize)r= r3 rA rB rB rC r} s
zWOFF2Writer._calcTotalSizec C s |}| j }|jrNt|j| _|| _tj|jtjd| _t| j| _ || j 7 }nd | _ | _ | _d| _|j
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| _ || j 7 }n d | _ | _ |S )z@Calculate offsets and lengths for any meta- and/or private data.)rt r r r r )
r; metaDatar+ ZmetaOrigLength
metaOffsetr6 r| Z MODE_TEXTcompressedMetaDataZ
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privLength)r= startr3 r? rB rB rC r s$ z)WOFF2Writer._calcFlavorDataOffsetsAndSizec C sT | j }|jdk r&|jdk r&|j|jfS d| jkrLtjd| jd jdd S dS dS )z;Return the WOFF2 font's (majorVersion, minorVersion) tuple.NrZ z>HHr r r )r r )r; r r r. r r, r? )r= r? rB rB rC r~ s
zWOFF2Writer._getVersionc C s2 t j| j| }x | jj D ]}||j }qW |S )z"Return WOFF2 table directory data.)r r rk r. r r )r= r rA rB rB rC r s z WOFF2Writer._packTableDirectoryc C s | j }| jj}|r"|r"t|dd}|rT| jj| j | jj | jksHt| jj | |r| jj| j
| jj | j
kszt| jj | dS )z # big endian
signature: 4s # "wOF2"
sfntVersion: 4s
length: L # total woff2 file size
numTables: H # number of tables
reserved: H # set to 0
totalSfntSize: L # uncompressed size
totalCompressedSize: L # compressed size
majorVersion: H # major version of WOFF file
minorVersion: H # minor version of WOFF file
metaOffset: L # offset to metadata block
metaLength: L # length of compressed metadata
metaOrigLength: L # length of uncompressed metadata
privOffset: L # offset to private data block
privLength: L # length of private data block
cmaprZ rY rM rX nameOS/2postcvt fpgmrJ rL prepCFF VORGEBDTEBLCgasphdmxkernLTSHPCLTVDMXvheavmtxBASEGDEFGPOSGSUBEBSCJSTFMATHCBDTCBLCCOLRCPALSVG sbixacntavarbdatblocbslncvarfdscfeatfmtxfvargvarhstyjustlcarmortmorxopbdproptrakZapfSilfGlatGlocFeatSillz5
> # big endian
flags: B # table type and flags
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> # big endian
tag: 4s # 4-byte tag (optional)
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> # big endian
version: L # = 0x00000000
numGlyphs: H # Number of glyphs
indexFormat: H # Offset format for loca table
nContourStreamSize: L # Size of nContour stream
nPointsStreamSize: L # Size of nPoints stream
flagStreamSize: L # Size of flag stream
glyphStreamSize: L # Size of glyph stream
compositeStreamSize: L # Size of composite stream
bboxStreamSize: L # Comnined size of bboxBitmap and bboxStream
instructionStreamSize: L # Size of instruction stream
zF
> # big endian
xMin: h
yMin: h
xMax: h
yMax: h
c C s* x$t ttD ]}| t| kr|S qW tS )zEReturn index of 'tag' in woff2KnownTags list. Return 63 if not found.)r/ r+ woff2KnownTagswoff2UnknownTagIndex)r2 r@ rB rB rC rn % s rn c @ sX e Zd Zdd Zdd Zdd Zedd Zejd d Zed
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| j | _ t |\| _ }| j | _
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dkrtd|S )Nr z)can't read table 'flags': not enough datar z'can't read table 'tag': not enough datarL r z1the transformLength of the 'loca' table must be 0)r+ r r unpack2woff2FlagsFormatro woff2UnknownTagSizewoff2UnknownTagFormatr r2 r
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z WOFF2DirectoryEntry.toStringc C s
| j d? S )z~Return bits 6-7 of table entry's flags, which indicate the preprocessing
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)ro )r= rB rB rC transformVersionV s z$WOFF2DirectoryEntry.transformVersionc C s2 d| kodkn s t | j|d> O _d S )Nr r r )r ro )r= valuerB rB rC r ] s c C s" | j dkr| jdkS | jdkS dS )zCReturn True if the table has any transformation, else return False.rJ rL r r N> rJ rL )r2 r )r= rB rB rC rF b s
z WOFF2DirectoryEntry.transformedc C s( | j dkr|sdnd| _n
t|| _d S )NrJ rL r r > rJ rL )r2 r int)r= Z booleanValuerB rB rC rF n s
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rd re rf r1 r r propertyr setterrF rB rB rB rC r) - s r) c s* e Zd ZdZdddZ fddZ ZS )rR zSame as parent class. The only difference is that it attempts to preserve
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Nr rJ indexFormati z,indexFormat is 0 but local offsets > 0x20000c s s | ]}|d dkV qdS )r r NrB ).0lrB rB rC s z)WOFF2LocaTable.compile..z5indexFormat is 0 but local offsets not multiples of 2Hr Ibig)max locationsAttributeErrorsetrE r r allarrayr/ r+ r sys byteorderbyteswapr superrR rU )r= r< Z max_locationr r r@ r? ) __class__rB rC rU s*
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d jD 7 }|S ) z Return transformed 'glyf' data rX rZ r r r r r r r c s g | ]}t |qS rB )r )r s)r= rB rC r s z,WOFF2GlyfTable.transform..)r+ r& r r$ r r" r r r r r! r/ _encodeGlyphr r r versionr r r r )r= r< r) r* r+ r? rB )r= rC r s$ zWOFF2GlyfTable.transformc C sT t dj }| j| |_|jdkr&|S |j r:| j| n
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ZGlyphr numberOfContours isComposite_decodeComponents_decodeCoordinates _decodeBBox)r= r+ r- rB rB rC r( s
zWOFF2GlyfTable._decodeGlyphc C sh | j }g |_d}d}x:|rNtdj }|j|| \}}}||B }|jj| qW || _ |rd| j| d S )Nr r rJ )r
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ZGlyphComponentr` r _decodeInstructions)r= r- r? morehaveInstructions componentZ haveInstrrB rB rC r3 s z WOFF2GlyfTable._decodeComponentsc C sd | j }g }d}x0t|jD ]"}t|\}}||7 }|j| qW ||_|| _ | j| | j| d S )Nr rc )r r/ r1 unpack255UShortr endPtsOfContours_decodeTripletsr7 )r= r- r? r< endPointr@ ptsOfContourrB rB rC r4 s
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z"WOFF2GlyfTable._decodeInstructionsc C sb t | j|d? d|d@ ? @ }|j r8| r8td| |rTtjt| j|\}| _n
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zWOFF2GlyfTable._encodeGlyphc C sx t |jd }d}d}xNtt |jD ]<}||kr@t|d}d}|j| }| j|j||| 7 _q&W |rt| j| d S )Nr r r@ )r+ r6 r/ rE r rU _encodeInstructions)r= r- Z
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|d r|j}|dkrt}t|| _dS ) a Data class that holds the WOFF2 header major/minor version, any
metadata or private data (as bytes strings), and the set of
table tags that have transformations applied (if reader is not None),
or will have once the WOFF2 font is compiled.
Args:
reader: an SFNTReader (or subclass) object to read flavor data from.
data: another WOFFFlavorData object to initialise data from.
transformedTables: set of strings containing table tags to be transformed.
Raises:
ImportError if the brotli module is not installed.
NOTE: The 'reader' argument, on the one hand, and the 'data' and
'transformedTables' arguments, on the other hand, are mutually exclusive.
zNo module named brotliNz4'reader' and 'data' arguments are mutually exclusivezA'reader' and 'transformedTables' arguments are mutually exclusiverJ rL z7'glyf' and 'loca' must be transformed (or not) together)readerc S s g | ]\}}|j r|qS rB )rF )r r2 rA rB rB rC r s z,WOFF2FlavorData.__init__..r[ )r" r% TypeError
ValueErrorr r: rD r. ry r r r r rE r[ woff2TransformedTableTagsr )r= rk r? r[ )r rB rC rD q s8 zWOFF2FlavorData.__init__c C s
t j|S )N)r6 r7 )r= rQ rB rB rC _decompress s zWOFF2FlavorData._decompress)NNN)rd re rf ZFlavorrD ro r rB rB )r rC r: m s 9r: c C s t | dkrtdd}t| d dkr0tdxpttD ]d}t | dkrRtdt| d }| dd } |d@ rztd|d > |d
@ B }|d@ dkr:|| fS q:W td dS ) a Read one to five bytes from UIntBase128-encoded input string, and return
a tuple containing the decoded integer plus any leftover data.
>>> unpackBase128(b'\x3f\x00\x00') == (63, b"\x00\x00")
True
>>> unpackBase128(b'\x8f\xff\xff\xff\x7f')[0] == 4294967295
True
>>> unpackBase128(b'\x80\x80\x3f') # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
File "", line 1, in ?
TTLibError: UIntBase128 value must not start with leading zeros
>>> unpackBase128(b'\x8f\xff\xff\xff\xff\x7f')[0] # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
File "", line 1, in ?
TTLibError: UIntBase128-encoded sequence is longer than 5 bytes
>>> unpackBase128(b'\x90\x80\x80\x80\x00')[0] # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
File "", line 1, in ?
TTLibError: UIntBase128 value exceeds 2**32-1
r z%not enough data to unpack UIntBase128rA z3UIntBase128 value must not start with leading zerosr Nl | z!UIntBase128 value exceeds 2**32-1rB rG z3UIntBase128-encoded sequence is longer than 5 bytes)r+ r r r/ woff2Base128MaxSize)r? resultr@ coderB rB rC r s r c C s2 | dks t d}x | dkr,|d7 }| dL } qW |S )z Return the length in bytes of a UIntBase128-encoded sequence with value n.
>>> base128Size(0)
1
>>> base128Size(24567)
3
>>> base128Size(2**32-1)
5
r r rA rB )r )nru rB rB rC base128Size s
rt c C sv | dk s| d krt dd}t| }xLt|D ]@}| d|| d ? d@ }||d k r^|d O }|tjd
|7 }q.W |S ) a Encode unsigned integer in range 0 to 2**32-1 (inclusive) to a string of
bytes using UIntBase128 variable-length encoding. Produce the shortest possible
encoding.
>>> packBase128(63) == b"\x3f"
True
>>> packBase128(2**32-1) == b'\x8f\xff\xff\xff\x7f'
True
r r z3UIntBase128 format requires 0 <= integer <= 2**32-1r rB r rG rA r l )r rt r/ r r )rs r? ru r@ brB rB rC r s
r c C s t | dd }| dd } |dkr\t| dk r8tdtjd| dd \}| dd } n|dkrt| dkrxtdt | dd }|d 7 }| dd } nF|d
krt| dkrtdt | dd }|d7 }| dd } n|}|| fS ) a Read one to three bytes from 255UInt16-encoded input string, and return a
tuple containing the decoded integer plus any leftover data.
>>> unpack255UShort(bytechr(252))[0]
252
Note that some numbers (e.g. 506) can have multiple encodings:
>>> unpack255UShort(struct.pack("BB", 254, 0))[0]
506
>>> unpack255UShort(struct.pack("BB", 255, 253))[0]
506
>>> unpack255UShort(struct.pack("BBB", 253, 1, 250))[0]
506
Nr r z#not enough data to unpack 255UInt16z>H r i r] )r r+ r r r, )r? rr rq rB rB rC r; s* r; c C sr | dk s| dkrt d| dk r,tjd| S | dk rFtjdd| d S | d k r`tjdd
| d S tjd d| S d S )
z Encode unsigned integer in range 0 to 65535 (inclusive) to a bytestring
using 255UInt16 variable-length encoding.
>>> pack255UShort(252) == b'\xfc'
True
>>> pack255UShort(506) == b'\xfe\x00'
True
>>> pack255UShort(762) == b'\xfd\x02\xfa'
True
r i z/255UInt16 format requires 0 <= integer <= 65535rw z>Bi z>BBr] i rx z>BHN)r r r )r rB rB rC rZ 0 s rZ c C sP t jd| |f t| ddd}d|_|dk r>t|j|d|_|j|dd dS )a Compress OpenType font to WOFF2.
Args:
input_file: a file path, file or file-like object (open in binary mode)
containing an OpenType font (either CFF- or TrueType-flavored).
output_file: a file path, file or file-like object where to save the
compressed WOFF2 font.
transform_tables: Optional[Iterable[str]]: a set of table tags for which
to enable preprocessing transformations. By default, only 'glyf'
and 'loca' tables are transformed. An empty set means disable all
transformations.
zProcessing %s => %sF)r r! r N)r? r[ )
reorderTables)r# infor rg r: r; save)
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r| c C s> t jd| |f t| ddd}d|_d|_|j|dd dS )a Decompress WOFF2 font to OpenType font.
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containing a compressed WOFF2 font.
output_file: a file path, file or file-like object where to save the
decompressed OpenType font.
zProcessing %s => %sF)r r! NT)ry )r# rz r rg r; r{ )r| r} r rB rB rC r7 b s
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r } z|j | W Y dd}~X nX dS )Ez#Compress and decompress WOFF2 fontsr N) configLogger)makeOutputFileNamec s e Zd Zd fdd ZdS )zmain.._HelpActionNc sR fdd|j D }x0|D ](}x"|jj D ]\}}t|j q*W qW |j d S )Nc s g | ]}t | jr|qS rB )
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z"main.._HelpAction.__call__)N)rd re rf r rB )r rB rC _HelpActiony s r c @ s e Zd ZdddZdS )z$main.._NoGlyfTransformActionNc S s |j jddh d S )NrJ rL )r~ difference_update)r= r r r r rB rB rC r s z-main.._NoGlyfTransformAction.__call__)N)rd re rf r rB rB rB rC _NoGlyfTransformAction s r c @ s e Zd ZdddZdS )z"main.._HmtxTransformActionNc S s |j jd d S )NrM )r~ add)r= r r r r rB rB rC r s z+main.._HmtxTransformAction.__call__)N)rd re rf r rB rB rB rC _HmtxTransformAction s r zfonttools ttLib.woff2F)prog descriptionadd_helpz-hz--helpz show this help message and exit)r helpz sub-commands)titler| z#Compress a TTF or OTF font to WOFF2)r r7 z Decompress a WOFF2 font to OTF)requiredz-vz --verbose
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