bash/tests/heredoc.tests

#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# basics
cat <<EOF
a
b
c
EOF
read x <<EOF
a
b
c
EOF
echo "$x"
read x y <<\EOF
$PS4
EOF
echo "$x"

# empty here-documents
read x <<EOF
EOF
echo "$x"
read x <<\EOF
EOF
echo "$x"
read x <<EOF
$empty
EOF
echo "$x"

# check order and content of multiple here docs
cat << EOF1 << EOF2 
hi
EOF1
there
EOF2

while read line1; do
	read line2 <&3
	echo $line1 - $line2
done <<EOF1 3<<EOF2
one
two
three
EOF1
alpha
beta
gamma
EOF2


# check quoted here-doc is protected

a=foo
cat << 'EOF'
hi\
there$a
stuff
EOF

# check that quoted here-documents don't have \newline processing done

cat << 'EOF'
hi\
there
EO\
F
EOF
true

# but unquoted here-documents remove backslash-newline
cat <<EOF
line 1\
line 2
EOF

# check that \newline is removed at start of here-doc
cat << EO\
F
hi
EOF

# check that \newline removal works for here-doc delimiter
cat << EOF
hi
EO\
F

# backslash-newline processing is performed before the check for the delimiter
cat <<EOF
next\
EOF
EOF

# check operation of tab removal in here documents
cat <<- EOF
	tab 1
	tab 2
	tab 3
	EOF

# check appending of text to file from here document
rm -f ${TMPDIR}/bash-zzz-$$
cat > ${TMPDIR}/bash-zzz-$$ << EOF
abc
EOF
cat >> ${TMPDIR}/bash-zzz-$$ << EOF
def ghi
jkl mno
EOF
cat ${TMPDIR}/bash-zzz-$$
rm -f ${TMPDIR}/bash-zzz-$$

# check behavior of double quotes and backslashes in here-documents
cat <<EOF
echo "
EOF

cat <<EOF
echo \"
EOF

# make sure command printing puts the here-document as the last redirection
# on the line, and the function export code preserves syntactic correctness
fff()
{
  ed ${TMPDIR}/foo <<ENDOFINPUT >/dev/null
/^name/d
w
q
ENDOFINPUT
aa=1
}

type fff
export -f fff
${THIS_SH} -c 'type fff'

${THIS_SH} ./heredoc1.sub

# test heredocs in command substitutions
${THIS_SH} ./heredoc2.sub
${THIS_SH} ./heredoc3.sub
${THIS_SH} ./heredoc4.sub

# heredoc tests that use different size documents to test pipe implementation
${THIS_SH} ./heredoc5.sub

# test $'...' and $"..." quoted strings in here-documents
${THIS_SH} ./heredoc6.sub

# interaction between here-documents and command substitutions
${THIS_SH} ./heredoc7.sub
${THIS_SH} ./heredoc8.sub

# various tests for printing here-documents in function bodies
${THIS_SH} ./heredoc9.sub

# test various combinations of here-documents and aliases
${THIS_SH} ./heredoc10.sub

echo $(
	cat <<< "comsub here-string"
)

# check that end of file delimits a here-document
# THIS MUST BE LAST!

cat <<''
hi
there
''