[Texmacs-dev] bug in text list output from weak spring

[Sam Liddicott]

The list macro appends a space to the end of the final item when the 
document is converted to verbatim mode.

This is due to a tail weak spring <htab|0fn|first> emitted as part of 
the padding.

Perhaps weak springs should not have a representation in text output 
mode? Perhaps at least tail weak springs?



Explanation notes below:

<\list|<inactive|<macro|x|<arg|x>>>|<inactive|<macro|x|<arg|x>>>>
  apple

  pear
</list>

when converted with

texmacs -s -c in.tm out.txt

the word "pear" has a trailing space.

I think this should not be the case.

The fault seems to be in <htab|0fn|first> used by padded-normal as used 
by render-list

<assign|render-list|<\macro|body>
<\padded-normal|<item-vsep>|<item-vsep>>
<\indent-left|<item-hsep>>
<surround|<no-page-break*>|<no-indent*>|<arg|body>>
</indent-left>
</padded-normal>
</macro>>

padded-normal is:
<assign|padded-normal|<macro|before|after|body|<surround|<vspace*|<arg|before>><no-indent>|<htab|0fn|first><vspace|<arg|after>>|<arg|body>>>>

It passes a <htab|0fn|first> as part of the argument to surround.



Sam