Parse error for here document inside an if with variable

[skovhus]

Parse fails for the entire document when you have a here document inside an if, that contains a variable as the first expression.

MWE:

if true; then
  a_string='some stuff to cat'
  cat <<XXX
${a_string}
XXX
fi

The issue does not occur if:

• not inside an if
• there is anything except newlines before ${a_string}, including whitespace

---

Origin: bash-lsp/bash-language-server#136

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[deedf]

Also fails with for :

for a in b c d; do
     read NAME <<EOF
${a}
EOF
done

[deedf]

Also fails within function definitions.

[brandonkal]

It also fails everywhere.

[skovhus]

This seems to have been fixed in the newer version of the grammar