Here strings (`<<<`) cause syntax highlight issues with command substitution

[dnicolson]

Here strings (<<<) when used with command substitution cause two issues:

• The closing bracket ()) is a different color to the opening one
• The use of backticks (`) results in improper syntax highlighting on the lines below

#!/bin/bash

echo one two
cat <<< $(echo one two)
echo one two

echo one two
cat <<< `echo one two`
echo one two

echo one two
cat <<< $(echo one two)
echo one two

[mkhl]

nice catch! currently after the here string operator we only recognize either rather simple strings or barewords so i expect the grammar to also fail for sufficiently complicated variable substitutions. it might make more sense to drop those rules altogether, i.e. recognize the <<< but let the regular shell grammar take back over immediately after, since we can't reliably detect where the actual here string ends :thinking:

my availability is kind of limited right now, would you consider submitting a pr?

for completeness' sake i should point out that here strings with command substitutions don't make a lot of semantic sense since foo <<<$(bar) is equivalent to bar | foo, and that you should generally quote command substitutions (although bash doesn't seem to apply word splitting here :shrug:), but that's not what this issue is about :vulcan_salute:

[dnicolson]

I guess I could try a bit later, I don't have experience with .tmLanguage files so it's not immediately obvious to me where to make the changes.

[mkhl]

i found some time to do it, could you check if cd4cf53 works for you?

[dnicolson]

It works, thanks for the quick fix!