# case-p.sh: test of case command for any POSIX-compliant shell posix="true" test_oE 'case word is subject to tilde expansion' HOME=/home case ~/foo in /home/foo) echo matched;; esac __IN__ matched __OUT__ test_oE 'case word is subject to parameter expansion' HOME=/home case $HOME/foo in /home/foo) echo matched;; esac __IN__ matched __OUT__ test_oE 'case word is subject to command substitution' case $(echo foo)`echo bar` in foobar) echo matched;; esac __IN__ matched __OUT__ test_oE 'case word is subject to arithmetic expansion' case $((1+2)) in 3) echo matched;; esac __IN__ matched __OUT__ test_oE 'case word is subject to quote removal' w='"1"'"'2'"\3 case '"1"'"'2'"\3 in $w) echo matched;; esac __IN__ matched __OUT__ test_oE 'quotations arising from expansion in case word' # XCU 2.6.7 says: # The quote characters that were present in the original word shall be # removed unless they have themselves been quoted. # That means backslashes in the word are not special here (because they are # arising from expansion, not in the original word). bs='\a\z' case $bs in '\a\z') echo bs1; esac case "$bs" in '\a\z') echo bs2; esac __IN__ bs1 bs2 __OUT__ test_oE 'case pattern is subject to tilde expansion' HOME=/home case /home/foo in ~/foo) echo matched;; esac __IN__ matched __OUT__ test_oE 'case pattern is subject to parameter expansion' HOME=/home case /home/foo in $HOME/foo) echo matched;; esac __IN__ matched __OUT__ test_oE 'case pattern is subject to command substitution' case foobar in $(echo foo)`echo bar`) echo matched;; esac __IN__ matched __OUT__ test_oE 'case pattern is subject to arithmetic expansion' case 3 in $((1+2))) echo matched;; esac __IN__ matched __OUT__ test_oE 'case pattern is subject to quote removal' w='"1"'"'2'"\3 case $w in '"1"'"'2'"\3) echo matched;; esac __IN__ matched __OUT__ test_oE 'backslashes arising from expansion in case pattern' # XCU 2.9.4 implies unquoted backslashes are special in the pattern. bs='\a\z' case 'az' in $bs ) echo bs1; esac case '\a\z' in "$bs") echo bs2; esac __IN__ bs1 bs2 __OUT__ test_oE 'pattern matching and quotes (*)' case '*ab' in \*\*\*) echo not reached;; '***') echo not reached;; "***") echo not reached;; \**) echo matched;; esac __IN__ matched __OUT__ test_oE 'pattern matching and quotes (?)' case '?a' in \?\?) echo not reached;; '??') echo not reached;; "??") echo not reached;; \??) echo matched;; esac __IN__ matched __OUT__ test_oE 'pattern matching and quotes ([])' case '[a' in \[\[abc]) echo not reached;; '[['abc]) echo not reached;; "[["abc]) echo not reached;; \[[abc]) echo matched;; esac __IN__ matched __OUT__ test_oE '* and ? match / and .' case //-/-.-. in *-?-*-?) echo matched;; esac __IN__ matched __OUT__ test_oe 'patterns are not expanded after first match' case 1 in $(echo expanded 0 >&2; echo 0)) echo matched 0;; $(echo expanded 1 >&2; echo 1)) echo matched 1;; $(echo expanded 2 >&2; echo 2)) echo matched 2;; esac __IN__ matched 1 __OUT__ expanded 0 expanded 1 __ERR__ test_oE 'multiple patterns for single command list' case 1 in a|b|c) echo not reached;; 0 | 1 | 2 ) echo matched;; esac __IN__ matched __OUT__ test_OE -e 0 'exit status of case command (unmatched, empty)' false case $(false) in esac __IN__ test_OE -e 0 'exit status of case command (unmatched, non-empty)' case $(false) in 1) true; (exit 11);; 2) true; (exit 17);; 3) true; (exit 19);; esac __IN__ # The behavior is POSIXly-unspecified for this case. See case-y.sh. #test_OE -e 0 'exit status of case command (matched, empty)' test_OE -e 17 'exit status of case command (matched, non-empty)' case $(echo 2; exit 2) in 1) true; (exit 11);; 2) true; (exit 17);; 3) true; (exit 19);; esac __IN__ test_oE -e 42 'executing item after ;&' case 1 in 0) echo not reached 0;; 1) echo matched 1;& 2) echo matched 2; (exit 42);& esac __IN__ matched 1 matched 2 __OUT__ test_oE 'exit status after empty ;& in case command' (exit 1) case i in i) ;& j) echo $? esac __IN__ 1 __OUT__ test_oE 'patterns can be preceded by (' case a in (a) echo matched 1;; (b) echo not reached 1 b;; (c) echo not reached 1 c;; esac case a in a) echo matched 2;; (b) echo not reached 2 b;; c) echo not reached 2 c;; (d) echo not reached 2 d;; esac __IN__ matched 1 matched 2 __OUT__ test_oE 'linebreak after word' case foo in foo)echo matched;;esac __IN__ matched __OUT__ test_oE 'linebreak after in' case foo in foo)echo matched;;esac __IN__ matched __OUT__ test_oE 'linebreak after )' case foo in foo) echo matched;;esac __IN__ matched __OUT__ test_oE 'linebreak before ;;' case foo in foo)echo matched ;;esac __IN__ matched __OUT__ test_oE '; before ;;' case foo in foo)echo matched; ;;esac __IN__ matched __OUT__ test_oE '& before ;;' case foo in foo)echo matched&;;esac wait __IN__ matched __OUT__ test_oE 'linebreak after ;;' case foo in bar)echo not reached;; foo)echo matched;;esac __IN__ matched __OUT__ test_oE 'linebreak before esac' case foo in foo)echo matched;; esac __IN__ matched __OUT__ test_oE ';; can be omitted before esac' case 2 in 0) echo a;; 1) echo b;; 2) echo c esac case 2 in 0) echo A;; 1) echo B;; 2) echo C; esac case 2 in 0) echo A;; 1) echo B;; *) esac case 2 in 0) echo A;; 1) echo B;; *) esac __IN__ c C __OUT__ # $1 = LINENO # $2 = reserved word test_reserved_word_as_pattern() { testcase "$1" "reserved word $2 as pattern" 3<<__IN__ 4<<'__OUT__' case $2 in $2) echo matched;; esac __IN__ matched __OUT__ } test_reserved_word_as_pattern "$LINENO" ! test_reserved_word_as_pattern "$LINENO" { test_reserved_word_as_pattern "$LINENO" } test_reserved_word_as_pattern "$LINENO" [[ test_reserved_word_as_pattern "$LINENO" ]] test_reserved_word_as_pattern "$LINENO" case test_reserved_word_as_pattern "$LINENO" do test_reserved_word_as_pattern "$LINENO" done test_reserved_word_as_pattern "$LINENO" elif test_reserved_word_as_pattern "$LINENO" else #test_reserved_word_as_pattern "$LINENO" esac test_reserved_word_as_pattern "$LINENO" fi test_reserved_word_as_pattern "$LINENO" for test_reserved_word_as_pattern "$LINENO" function test_reserved_word_as_pattern "$LINENO" if test_reserved_word_as_pattern "$LINENO" in test_reserved_word_as_pattern "$LINENO" select test_reserved_word_as_pattern "$LINENO" then test_reserved_word_as_pattern "$LINENO" until test_reserved_word_as_pattern "$LINENO" while test_oE 'esac as first pattern' case esac in (esac) echo matched;; esac __IN__ matched __OUT__ test_oE 'esac as non-first pattern' case esac in -|esac) echo matched;; esac __IN__ matched __OUT__ test_oE 'redirection on case command' case $(echo foo >&2) in $(echo bar >&2)) echo baz >&2;; esac 2>redir_out cat redir_out __IN__ foo bar baz __OUT__