Re: "mtxrun --script fonts --reload" hangs when loading "LXGWNeoXiHei.ttf"

On 3/25/2026 11:34 AM, luigi scarso wrote:
> 
> 
> On Wed, 25 Mar 2026 at 10:53, Hans Hagen via ntg-context <ntg- 
> [email protected] <mailto:[email protected]>> wrote:
> 
>     On 3/25/2026 5:40 AM, Max Chernoff via ntg-context wrote:
> 
>      >      $ wget 'https://mirrors.ctan.org/fonts/lxgw-fonts/
>     LXGWNeoXiHei.ttf <https://mirrors.ctan.org/fonts/lxgw-fonts/
>     LXGWNeoXiHei.ttf>'
> 
>     are these fonts actually tested at all before being uploaded
> 
> 
> Using ttx should be doable, I think
> 
> $ ttx LXGWNeoXiHei.ttf
> 
> Dumping "LXGWNeoXiHei.ttf" to "LXGWNeoXiHei#2.ttx"...
> Dumping 'GlyphOrder' table...
> ERROR: An exception occurred during the decompilation of the 'post' table
> Traceback (most recent call last):
>    File "/<..>/lib/python3.10/site-packages/fontTools/ttLib/ttFont.py", 
> line 482, in _readTable
>      table.decompile(data, self)
>    File "/<..>/lib/python3.10/site-packages/fontTools/ttLib/tables/ 
> _p_o_s_t.py", line 52, in decompile
>      raise ttLib.TTLibError(
> fontTools.ttLib.TTLibError: 'post' table format 7865.120026 not supported
> ERROR: Unhandled exception has occurred
> Traceback (most recent call last):
>    File "/<..>/lib/python3.10/site-packages/fontTools/ttx.py", line 452, 
> in main
>      process(jobs, options)
>    File "/<..>/lib/python3.10/site-packages/fontTools/ttx.py", line 434, 
> in process
>      action(input, output, options)
>    File "/<..>/lib/python3.10/site-packages/fontTools/misc/ 
> loggingTools.py", line 375, in wrapper
>      return func(*args, **kwds)
>    File "/<..>/lib/python3.10/site-packages/fontTools/ttx.py", line 295, 
> in ttDump
>      ttf.saveXML(
>    File "/<..>/lib/python3.10/site-packages/fontTools/ttLib/ttFont.py", 
> line 289, in saveXML
>      self._saveXML(writer, **kwargs)
>    File "/<..>/lib/python3.10/site-packages/fontTools/ttLib/ttFont.py", 
> line 354, in _saveXML
>      self._tableToXML(tableWriter, tag, splitGlyphs=splitGlyphs)
>    File "/<..>/lib/python3.10/site-packages/fontTools/ttLib/ttFont.py", 
> line 386, in _tableToXML
>      table.toXML(writer, self)
>    File "/<..>/lib/python3.10/site-packages/fontTools/ttLib/ttFont.py", 
> line 866, in toXML
>      glyphOrder = ttFont.getGlyphOrder()
>    File "/<..>/lib/python3.10/site-packages/fontTools/ttLib/ttFont.py", 
> line 543, in getGlyphOrder
>      glyphOrder = self["post"].getGlyphOrder()
> AttributeError: 'DefaultTable' object has no attribute 'getGlyphOrder'
> 
> at least as long as it's supported...

ah, it already crashes out on the post table ... lucky it doesn't 
continue till it has to read features (billions of reads to get these 
basic script/language tables loaded, apart from lookups etc) .. no 
surprise that applicatiosn that allocate mem beforehand crap out (lua 
allocates as it goes along so indeed we use gigabytes of mem here) .. 
imagine the xml files ttx would produce

Hans

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                                           Hans Hagen | PRAGMA ADE
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