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Denys Vlasenko 9ee5892798 ash: expand: Fix trailing newlines processing in backquote expanding 
Upstream commit:

    Date: Mon, 29 Apr 2019 19:13:37 +0500
    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>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-02-17 10:24:32 +01:00
..
ash-alias
ash-arith ash: parser: Add syntax stack for recursive parsing 2018-04-02 13:15:37 +02:00
ash-getopts hush: fix "getopts" builtin to not be upset by other builtins calling getopt() 2017-08-29 13:38:30 +02:00
ash-glob ash: expand: Do not quote backslashes in unquoted parameter expansion 2018-08-07 18:58:02 +02:00
ash-heredoc hush: add "heredoc.tests" from ash, tweak ash "is a function" message 2018-07-24 17:10:18 +02:00
ash-invert
ash-misc ash: [BUILTIN] Exit without arguments in a trap should use status outside traps 2020-02-16 19:14:45 +01:00
ash-parsing hush: fix recent breakage from parse_stream() changes 2018-04-11 20:00:43 +02:00
ash-psubst ash: expand: Fix trailing newlines processing in backquote expanding 2020-02-17 10:24:32 +01:00
ash-quoting hush: fix handling of '' in ${var:+ARG} 2018-07-20 17:36:06 +02:00
ash-read shell: optional support for read -t N.NNN, closes 10101 2017-07-20 16:09:31 +02:00
ash-redir hush: restore redirected stdin 2019-11-01 14:16:07 +01:00
ash-signals ash: copy three tests from hush_test/hush-signals/* 2017-07-24 19:42:46 +02:00
ash-standalone ash: fix nofork bug where environment is not properly passed to a command 2017-11-03 14:16:25 +01:00
ash-vars ash: parser: Only accept single-digit parameter expansion outside of braces 2020-02-17 10:15:35 +01:00
ash-z_slow hush: improve ${var#...}, ${var:+...} and ${var/.../...} - handle quoting 2018-07-17 14:21:38 +02:00
.gitignore
printenv.c do not use `a' quoting style in comments 2017-08-02 14:26:33 +02:00
recho.c
run-all ash: add all hush parsing tests to ast tests 2017-07-24 02:49:56 +02:00
zecho.c