Re: libtextstyle vs Emacs

[Bruno Haible]

Hi Akim,

> In compilation-mode, Emacs reveals the escape for hyperlinks:
> 
> cd ~/src/faveod/rbs_parser/ && make BSN=~/src/gnu/bison/_build/g9d/src/bison
> /Users/akim/src/gnu/bison/_build/g9d/src/bison -o src/Parser.cc src/Parser.ypp
> src/Parser.ypp:270.7-13: avertissement: conflit de type pour l'action par 
> défaut: <string> != <> 
> []8;id=155289640005abcae1cc42ed00000000;https://www.gnu.org/software/bison/manual/html_node/Diagnostics.html#Wother\-Wother]8;;\]
>   270 |     | tLIDENT
>       |       ^~~~~~~

Please, can you provide a reproducible test case? Parser.ypp from
'git clone https://github.com/Shopify/rbs_parser.git' does not give a warning
for me, when bison-3.7 is invoked on it.

> Maybe hyperlinks should be disabled when $EMACS == "t"?  This is Emacs 26.3.

Please, can you also give the value of $TERM ? This is the common way to
determine the capabilities of a terminal emulator, not $EMACS.

You should know that
  - There is some doc regarding Emacs [1],
  - libtextstyle does not assume that hyperlinking is supported if $TERM
    starts with "eterm" [2],
  - The user can turn off hyperlink output by setting the environment variable
    NO_TERM_HYPERLINKS [3].

Bruno

[1] 
https://www.gnu.org/software/gettext/libtextstyle/manual/html_node/Emacs.html
[2] 
https://git.savannah.gnu.org/gitweb/?p=gettext.git;a=blob;f=libtextstyle/gnulib-local/lib/term-ostream.oo.c;h=36d84d31c8db1d9e91d889afa0d9d97244bbfa98;hb=HEAD#l2316
[3] 
https://www.gnu.org/software/gettext/libtextstyle/manual/html_node/The-NO_005fTERM_005fHYPERLINKS-variable.html