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|
# Test the "emulate" builtin and related functions.
%prep
isset() {
print -n "${1}: "
if [[ -o $1 ]]; then print yes; else print no; fi
}
showopts() {
# Set for Bourne shell emulation
isset shwordsplit
# Set in native mode and unless "emulate -R" is in use
isset banghist
}
cshowopts() {
showopts
# Show a csh option, too
isset cshnullglob
}
%test
(print Before
showopts
fn() {
emulate sh
}
fn
print After
showopts)
0:Basic use of emulate
>Before
>shwordsplit: no
>banghist: yes
>After
>shwordsplit: yes
>banghist: yes
fn() {
emulate -L sh
print During
showopts
}
print Before
showopts
fn
print After
showopts
0:Use of emulate -L
>Before
>shwordsplit: no
>banghist: yes
>During
>shwordsplit: yes
>banghist: yes
>After
>shwordsplit: no
>banghist: yes
(print Before
showopts
emulate -R sh
print After
showopts)
0:Use of emulate -R
>Before
>shwordsplit: no
>banghist: yes
>After
>shwordsplit: yes
>banghist: no
print Before
showopts
emulate sh -c 'print During; showopts'
print After
showopts
0:Use of emulate -c
>Before
>shwordsplit: no
>banghist: yes
>During
>shwordsplit: yes
>banghist: yes
>After
>shwordsplit: no
>banghist: yes
print Before
showopts
emulate -R sh -c 'print During; showopts'
print After
showopts
0:Use of emulate -R -c
>Before
>shwordsplit: no
>banghist: yes
>During
>shwordsplit: yes
>banghist: no
>After
>shwordsplit: no
>banghist: yes
print Before
showopts
emulate -R sh -c 'shshowopts() { showopts; }'
print After definition
showopts
print In sticky emulation
shshowopts
print After sticky emulation
showopts
0:Basic sticky function emulation
>Before
>shwordsplit: no
>banghist: yes
>After definition
>shwordsplit: no
>banghist: yes
>In sticky emulation
>shwordsplit: yes
>banghist: no
>After sticky emulation
>shwordsplit: no
>banghist: yes
print Before
cshowopts
emulate -R sh -c 'shshowopts() { cshowopts; }'
emulate csh -c 'cshshowopts() {
cshowopts
print In nested sh emulation
shshowopts
}'
print After definition
cshowopts
print In sticky csh emulation
cshshowopts
print After sticky emulation
cshowopts
0:Basic sticky function emulation
>Before
>shwordsplit: no
>banghist: yes
>cshnullglob: no
>After definition
>shwordsplit: no
>banghist: yes
>cshnullglob: no
>In sticky csh emulation
>shwordsplit: no
>banghist: yes
>cshnullglob: yes
>In nested sh emulation
>shwordsplit: yes
>banghist: no
>cshnullglob: no
>After sticky emulation
>shwordsplit: no
>banghist: yes
>cshnullglob: no
isalp() { if [[ -o alwayslastprompt ]]; then print on; else print off; fi; }
emulate sh -c 'shfunc_inner() { setopt alwayslastprompt; }'
emulate csh -c 'cshfunc_inner() { setopt alwayslastprompt; }'
emulate sh -c 'shfunc_outer() {
unsetopt alwayslastprompt;
shfunc_inner;
isalp
unsetopt alwayslastprompt
cshfunc_inner
isalp
}'
shfunc_outer
0:Sticky emulation not triggered if sticky emulation unchanged
>on
>off
|
