#!/bin/bash
. ./Common

#
# Note that we have to escape things for the shell as well. In general,
# for any character C, \C becomes C. However, in the case of <<EOF ... EOF,
# \ is left as is if it doesn't precede a special character.
#

###############################################################################

tst "substitutions: escape x in regexp" -R '*\\x' <<EOF
EOF

expect <<EOF
^.*\\x\$
EOF

#------------------------------------------------------------------------------
tst "substitutions: escape * in regexp" -R '*\\*' <<EOF
EOF

expect <<EOF
^.*\*\$
EOF

#------------------------------------------------------------------------------

tst "substitutions: escape . in regexp (implicit)" -R 'x.y' <<EOF
EOF

expect <<EOF
^x\.y\$
EOF

#------------------------------------------------------------------------------

tst "substitutions: escape | in regexp" -R 'a\\\|b' <<EOF
EOF

expect <<EOF
^a\\|b\$
EOF

#------------------------------------------------------------------------------

tst "substitutions: escape \\ in regexp" -R 'x\\\\y' <<EOF
EOF

expect <<EOF
^x\\\\y\$
EOF

#------------------------------------------------------------------------------

tst_fail "substitutions: try to escape EOL in regexp" -R 'x\\' <<EOF
EOF

expect <<EOF
dummy:2: regexp ends with backslash
EOF

#------------------------------------------------------------------------------

tst "substitutions: escape space in regexp (match)" -q '"x=a c"' <<EOF
!-s
y=a
x=a\ c { y=b }
EOF

expect <<EOF
y=b
EOF

#------------------------------------------------------------------------------

tst "substitutions: escape space in regexp (no match)" -q '"x=a b"' <<EOF
!-s
y=a
x=a\ c { y=b }
EOF

expect <<EOF
y=a
EOF

#------------------------------------------------------------------------------

tst "substitutions: escape \$ in value" -q <<EOF
!-s
x=y\\$
EOF

expect <<EOF
x=y\$
EOF

#------------------------------------------------------------------------------

tst "substitutions: escape x in value" -q <<EOF
!-s
x=y\x
EOF

expect <<EOF
x=yx
EOF

#------------------------------------------------------------------------------

tst "substitutions: escape space in value" -q <<EOF
!-s
x=x\ y
EOF

expect <<EOF
x=x y
EOF

#------------------------------------------------------------------------------

tst "substitutions: escape \\ in value" -q <<EOF
!-s
x=a\\\\b
EOF

expect <<EOF
x=a\\b
EOF

#------------------------------------------------------------------------------

tst_fail "substitutions: try to escape EOL in value" -q <<EOF
!-s
x=y\\
EOF

expect <<EOF
s:1: syntax error
EOF

###############################################################################