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author | Nikolai Merinov <n.merinov@inango-systems.com> | 2019-04-29 19:13:37 +0500 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-01-20 17:52:07 +0800 |
commit | c4f4ee8ecf85834811c252fc1df3892863572bbd (patch) | |
tree | 2f377c0f421747e5c8656c636730a824c59de625 /src/redir.h | |
parent | parser: Fix old-style command substitution here-document crash (diff) | |
download | dash-c4f4ee8ecf85834811c252fc1df3892863572bbd.tar.gz dash-c4f4ee8ecf85834811c252fc1df3892863572bbd.zip |
expand: Fix trailing newlines processing in backquote expanding
According to POSIX.1-2008 we should remove newlines only at the end of the substitution. Newlines-only substitions causes dash to remove newlines before beggining of the substitution. The following code: cat <<END 1 $(echo "") 2 END prints "1<newline>2" instead of expected "1<newline><newline>2". This patch fixes trailing newlines processing in backquote expanding. Signed-off-by: Nikolai Merinov <n.merinov@inango-systems.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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