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backslash<newline> at end of input causes eval parse error
From: |
jim . avera |
Subject: |
backslash<newline> at end of input causes eval parse error |
Date: |
Mon, 25 Aug 2014 15:06:54 -0700 (PDT) |
Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64'
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-unknown-linux-gnu'
-DCONF_VENDOR='unknown' -DLOCALEDIR='/usr/local/share/locale' -DPACKAGE='bash'
-DSHELL -DHAVE_CONFIG_H -I. -I. -I./include -I./lib -g -O2
uname output: Linux lxjima 3.11.0-26-generic #45-Ubuntu SMP Tue Jul 15 04:02:06
UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
Machine Type: x86_64-unknown-linux-gnu
Bash Version: 4.3
Patch Level: 0
Release Status: release
Description:
A \<newline> is supposed to be ignored, but if it occurs at the very end of the
input then it causes a prior eval containing an array assignment to be
mis-parsed.
However if the eval contains something other than an array assignment then no
error occurs.
Repeat-By:
#!/bin/bash
PATH=/path/to/bash-4.3:$PATH; export PATH
type bash
# This one fails with the following error:
# bash: eval: line 1: syntax error near unexpected token `foo'
#
echo "*** eval containing array assignment; backslash-newline (FAILS)"
bash -ex <<'EOF'
eval "array=(foo bar)" ; echo AAA\
EOF
# But these work fine...
#
echo "*** eval containing something else; backslash-newline (works)"
bash -ex <<'EOF'
eval "scalar='(foo bar)'" ; echo AAA\
EOF
echo "*** eval containing array assignment; backslash-newline; text (works)"
bash -ex <<'EOF'
eval "array=(foo bar)" ; echo AAA\
BBB
EOF
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