Re: Extracting hte font name from a TrueType font file

[Steve Holden]

Fredrik Lundh wrote:

Steve Holden wrote:
>

>Does anyone have a Python recipe for this?

>

>>>from PIL import ImageFont
>>>f = ImageFont.truet ype("/windows/fonts/verdanai.ttf", 1)
>>>f.font.famil y

'Verdana'

>>>f.font.sty le

'Italic'
>

Thanks so much, Fredrik. The reason I asked is because I found the
specification completely opaque ...

regards
Steve
--
Steve Holden +1 571 484 6266 +1 800 494 3119
Holden Web LLC http://www.holdenweb.com/

[Aaron \Castironpi\ Brady]

Re: Extracting hte font name from a TrueType font file

On Sep 18, 7:48 pm, Steve Holden <st...@holdenwe b.comwrote:

Fredrik Lundh wrote:

Steve Holden wrote:

>

Does anyone have a Python recipe for this?

>

>>from PIL import ImageFont
>>f = ImageFont.truet ype("/windows/fonts/verdanai.ttf", 1)
>>f.font.fami ly

'Verdana'

>>f.font.styl e

'Italic'

>
Thanks so much, Fredrik. The reason I asked is because I found the
specification completely opaque ...
>
regards
 Steve
--
Steve Holden        +1 571 484 6266   +1 800 494 3119
Holden Web LLC              http://www.holdenweb.com/

Here's the code to parse the spec.

#customize path
f= open( '\\windows\\fon ts\\arial.ttf', 'rb' )
from struct import *

#header
shead= Struct( '>IHHHH' )
fhead= f.read( shead.size )
dhead= shead.unpack_fr om( fhead, 0 )

#font directory
stable= Struct( '>4sIII' )
ftable= f.read( stable.size* dhead[ 1 ] )
for i in range( dhead[1] ): #directory records
dtable= stable.unpack_f rom(
ftable, i* stable.size )
if dtable[0]== 'name': break
assert dtable[0]== 'name'

#name table
f.seek( dtable[2] ) #at offset
fnametable= f.read( dtable[3] ) #length
snamehead= Struct( '>HHH' ) #name table head
dnamehead= snamehead.unpac k_from( fnametable, 0 )

sname= Struct( '>HHHHHH' )
for i in range( dnamehead[1] ): #name table records
dname= sname.unpack_fr om(
fnametable, snamehead.size+ i* sname.size )
if dname[3]== 4: #key == 4: "full name of font"
s= unpack_from(
'%is'% dname[4], fnametable,
dnamehead[2]+ dname[5] )[0]
print dname, s

This outputs:

(0, 3, 0, 4, 10, 318) A r i a l
(1, 0, 0, 4, 5, 4081) Arial
(3, 1, 1033, 4, 10, 318) A r i a l

First 3 fields:

0, 3, 0= Unicode, Unicode 2.0, English
1, 0, 0= Macintosh, Default, English
3, 1, 1033= Windows, Version 1.1, Language "1033"

[Steve Holden]

Re: Extracting hte font name from a TrueType font file

Aaron "Castironpi " Brady wrote:

On Sep 18, 7:48 pm, Steve Holden <st...@holdenwe b.comwrote:

>Fredrik Lundh wrote:

>>Steve Holden wrote:
>>>Does anyone have a Python recipe for this?
>>>>>from PIL import ImageFont
>>>>>f = ImageFont.truet ype("/windows/fonts/verdanai.ttf", 1)
>>>>>f.font.fam ily
>>'Verdana'
>>>>>f.font.sty le
>>'Italic'

>Thanks so much, Fredrik. The reason I asked is because I found the
>specificatio n completely opaque ...
>>
>regards
> Steve
>--
>Steve Holden +1 571 484 6266 +1 800 494 3119
>Holden Web LLC http://www.holdenweb.com/

>
Here's the code to parse the spec.
>
#customize path
f= open( '\\windows\\fon ts\\arial.ttf', 'rb' )
from struct import *
>
#header
shead= Struct( '>IHHHH' )
fhead= f.read( shead.size )
dhead= shead.unpack_fr om( fhead, 0 )
>
#font directory
stable= Struct( '>4sIII' )
ftable= f.read( stable.size* dhead[ 1 ] )
for i in range( dhead[1] ): #directory records
dtable= stable.unpack_f rom(
ftable, i* stable.size )
if dtable[0]== 'name': break
assert dtable[0]== 'name'
>
#name table
f.seek( dtable[2] ) #at offset
fnametable= f.read( dtable[3] ) #length
snamehead= Struct( '>HHH' ) #name table head
dnamehead= snamehead.unpac k_from( fnametable, 0 )
>
sname= Struct( '>HHHHHH' )
for i in range( dnamehead[1] ): #name table records
dname= sname.unpack_fr om(
fnametable, snamehead.size+ i* sname.size )
if dname[3]== 4: #key == 4: "full name of font"
s= unpack_from(
'%is'% dname[4], fnametable,
dnamehead[2]+ dname[5] )[0]
print dname, s
>
This outputs:
>
(0, 3, 0, 4, 10, 318) A r i a l
(1, 0, 0, 4, 5, 4081) Arial
(3, 1, 1033, 4, 10, 318) A r i a l
>
First 3 fields:
>
0, 3, 0= Unicode, Unicode 2.0, English
1, 0, 0= Macintosh, Default, English
3, 1, 1033= Windows, Version 1.1, Language "1033"

Well you clearly understood it better than *I* did!

regards
Steve
--
Steve Holden +1 571 484 6266 +1 800 494 3119
Holden Web LLC http://www.holdenweb.com/