syntax highlighting for eval

[pascalpoitras]

Feature description

It would be useful to have syntax highlighting for eval. It would be available in two ways

1. using /eval -h
2. using ${highlighting:...}

the highlighting variable would have the second top priority (so just after raw). Nothing would be evaluated inside highlighting (exactly like raw does).

So if the cut variable is green and the rev variable is red, both

/eval -h ${cut:1,,${rev:hello}}

and

/eval -n ${highlighting:${cut:1,,${rev:hello}}}

will print

We could also have an option similar to weechat.color.chat_nick_colors which contains a list of colors and an option similar to weechat.look.nick_color_hash taking an algorithm so the color will be choosed automatically

All ${info:...} would be colored the same way no matter the info name, same for ${modifier:...} OR different color not sure what is the best here

the ${define:...} is interesting since it priority allow it to redefine variable so for example what the color the following ${info:version} should be

/eval -h ${define:info:version,hello}${info:version}

the color for info or the color for custom variables ?

This feature is useful in many scenario, for example

1. sending an eval string on IRC with syntax highlighting

/eval ${modifier:irc_color_decode_ansi,1,${modifier:color_encode_ansi,,${highlighting:${cut:1,,${rev:hello}}}}}

2. using it in a input_text_display modifier so you have syntax highlighting when writting a code snippet in the input bar

[pascalpoitras]

Ok so, FlashCode accepted this feature so here it was it look like in the input bar

[flashcode]

Done with ${raw_hl:...} (raw string with syntax highlighting) and ${hl:...} (evaluated string with syntax highlighting).

[flashcode]

Trigger to colorize /eval command in input:

/trigger add eval_hl modifier "input_text_display" "${tg_string} =~ ^/eval" "/.*/${hl:${re:0}}/"