Hexadecimal support for calibre-debug --subset-font ?

un_pogaz · 11-21-2018, 08:48 AM

Code:

calibre-debug --subset-font FontFile.otf FontFile-subset.otf --unicode 22A0-304F

Could you add support for the Hexadecimal format for the code range of the subset-font tool?
It is more common to designate the point code of a Unicode character in Hexa format (because make a manuel conversion Hexa to Decimal... not cool)
Thanks

kovidgoyal · 11-21-2018, 10:03 AM

you can do that already by using either U+ or 0x prefixes to the numbers.

un_pogaz · 11-21-2018, 10:28 AM

Euh, sure

calibre-debug -f "FontFile.otf" "FontFile-subset.otf" -c U+2220-U+222F

Code:

Python function terminated unexpectedly
  invalid syntax (<string>, line 1) (Error Code: 1)
Traceback (most recent call last):
  File "site.py", line 101, in main
  File "site.py", line 78, in run_entry_point
  File "site-packages\calibre\debug.py", line 276, in main
  File "<string>", line 1
    U+2220-U+222F
                ^
SyntaxError: invalid syntax

DNSB · 11-22-2018, 01:47 AM

The 0x syntax doesn't give an error but it also doesn't generate a subsetted font.

Edit: tried the following:

Code:

C:\Transact>calibre-debug --subset-font code2000.ttf code2k_subset.ttf -c 65-90

C:\Transact>

No error message but no font subset with A-Z either. trying --codes gave a no such option.

un_pogaz · 11-22-2018, 07:16 AM

The purpose of this post is precisely to not have use the decimal format (for the reasons above).
Currently, it is necessary to use a script/soft to convert from Hexa to Decimal format. Not impossible, but not the most practical.

DNSB · 11-22-2018, 11:50 AM

Quote:

Originally Posted by un_pogaz

The purpose of this post is precisely to not have use the decimal format (for the reasons above).
Currently, it is necessary to use a script/soft to convert from Hexa to Decimal format. Not impossible, but not the most practical.

My posts were pointing out that selecting codes using either the 0x hex format or decimal also fails though unlike the U+ format, there is no error message. Trying to use the --codes variant fails as well.

kovidgoyal · 11-22-2018, 12:38 PM

You need a --

something like

Code:

calibre-debug --subset-font -- --codes file.ttf out.ttf U+0067,U+0068

un_pogaz · 11-22-2018, 02:46 PM

Okay, it's work

Thank

But I would like to say that, beyond the fact that this feature is not documented, this syntax is inchoereal with the reste. This reduces that practicality.

kovidgoyal · 11-22-2018, 10:07 PM

this feature is not designed for end user use, it's part of calibre-debug and is provided to ease development/debugging of problems with the font subsetter.

DNSB · 11-23-2018, 04:00 AM

Quote:

Originally Posted by kovidgoyal

You need a --

something like

Code:

calibre-debug --subset-font -- --codes file.ttf out.ttf U+0067,U+0068

So that's where the -- mentioned in the help goes.

11-21-2018, 08:48 AM	#1
un_pogaz Chalut o/ Posts: 486 Karma: 678910 Join Date: Dec 2017 Device: Kobo	Hexadecimal support for calibre-debug --subset-font ? Code: calibre-debug --subset-font FontFile.otf FontFile-subset.otf --unicode 22A0-304F Could you add support for the Hexadecimal format for the code range of the subset-font tool? It is more common to designate the point code of a Unicode character in Hexa format (because make a manuel conversion Hexa to Decimal... not cool) Thanks Last edited by un_pogaz; 11-21-2018 at 09:59 AM.

11-22-2018, 01:47 AM	#4
DNSB Bibliophagist Posts: 48,163 Karma: 174315444 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	The 0x syntax doesn't give an error but it also doesn't generate a subsetted font. Edit: tried the following: Code: C:\Transact>calibre-debug --subset-font code2000.ttf code2k_subset.ttf -c 65-90 C:\Transact> No error message but no font subset with A-Z either. trying --codes gave a no such option. Last edited by DNSB; 11-22-2018 at 02:32 AM.

11-22-2018, 12:38 PM	#7
kovidgoyal creator of calibre Posts: 45,609 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	You need a -- something like Code: calibre-debug --subset-font -- --codes file.ttf out.ttf U+0067,U+0068

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11-21-2018, 10:03 AM	#2
kovidgoyal creator of calibre Posts: 45,609 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	you can do that already by using either U+ or 0x prefixes to the numbers.

11-22-2018, 07:16 AM	#5
un_pogaz Chalut o/ Posts: 486 Karma: 678910 Join Date: Dec 2017 Device: Kobo	The purpose of this post is precisely to not have use the decimal format (for the reasons above). Currently, it is necessary to use a script/soft to convert from Hexa to Decimal format. Not impossible, but not the most practical.

11-22-2018, 02:46 PM	#8
un_pogaz Chalut o/ Posts: 486 Karma: 678910 Join Date: Dec 2017 Device: Kobo	Okay, it's work Thank But I would like to say that, beyond the fact that this feature is not documented, this syntax is inchoereal with the reste. This reduces that practicality.

11-22-2018, 10:07 PM	#9
kovidgoyal creator of calibre Posts: 45,609 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	this feature is not designed for end user use, it's part of calibre-debug and is provided to ease development/debugging of problems with the font subsetter.