# CHECK: -- Testing:{{.*}}
# CHECK-NEXT: PASS: shtest-if-else :: test.txt (1 of 1)
# CHECK: Command Output (stdout):
# CHECK-NEXT: --
# RUN: %if feature %{ echo "test-1" %}
# CHECK: # {{RUN}}: at line [[#@LINE-1]]
# CHECK-NEXT: echo "test-1"
# If %else is not present it is treated like %else %{%}. Empty commands
# are ignored.
#
# RUN: %if nofeature %{ echo "fail" %}
# CHECK: # {{RUN}}: at line [[#@LINE-1]] has no command after substitutions
# CHECK-NOT: fail
# RUN: %if nofeature %{ echo "fail" %} %else %{ echo "test-2" %}
# CHECK: # {{RUN}}: at line [[#@LINE-1]]
# CHECK-NEXT: echo "test-2"
# Spaces inside curly braces are not ignored
#
# RUN: echo test-%if feature %{ 3 %} %else %{ fail %}-test
# RUN: echo test-%if feature %{ 4 4 %} %else %{ fail %}-test
# RUN: echo test-%if nofeature %{ fail %} %else %{ 5 5 %}-test
# CHECK: # {{RUN}}: at line [[#@LINE-3]]
# CHECK-NEXT: echo test- 3 -test
# CHECK: # {{RUN}}: at line [[#@LINE-4]]
# CHECK-NEXT: echo test- 4 4 -test
# CHECK: # {{RUN}}: at line [[#@LINE-5]]
# CHECK-NEXT: echo test- 5 5 -test
# Escape line breaks for multi-line expressions
#
# RUN: %if feature \
# RUN: %{ echo \
# RUN: "test-5" \
# RUN: %}
# CHECK: # {{RUN}}: at line [[#@LINE-4]]
# CHECK-NEXT: echo "test-5"
# RUN: %if nofeature \
# RUN: %{ echo "fail" %} \
# RUN: %else \
# RUN: %{ echo "test-6" %}
# CHECK: # {{RUN}}: at line [[#@LINE-4]]
# CHECK-NEXT: echo "test-6"
# RUN: echo "test%if feature %{%} %else %{%}-7"
# CHECK: # {{RUN}}: at line [[#@LINE-1]]
# CHECK-NEXT: echo "test-7"
# Escape %if. Without %if..%else context '%{' and '%}' are treated
# literally.
#
# RUN: echo %%if feature %{ echo "test-8" %}
# CHECK: # {{RUN}}: at line [[#@LINE-1]]
# CHECK-NEXT: echo %if feature %{ echo "test-8" %}
# Nested expressions are supported:
#
# RUN: echo %if feature %{ %if feature %{ %if nofeature %{"fail"%} %else %{"test-9"%} %} %}
# CHECK: # {{RUN}}: at line [[#@LINE-1]]
# CHECK-NEXT: echo "test-9"
# Binary expression evaluation and regex match can be used as
# conditions.
#
# RUN: echo %if feature && !nofeature %{ "test-10" %}
# RUN: echo %if feature && nofeature %{ "fail" %} %else %{ "test-11" %}
# RUN: echo %if {{fea.+}} %{ "test-12" %} %else %{ "fail" %}
# CHECK: # {{RUN}}: at line [[#@LINE-3]]
# CHECK-NEXT: echo "test-10"
# CHECK: # {{RUN}}: at line [[#@LINE-4]]
# CHECK-NEXT: echo "test-11"
# CHECK: # {{RUN}}: at line [[#@LINE-5]]
# CHECK-NEXT: echo "test-12"
# Spaces between %if and %else are ignored. If there is no %else -
# space after %if %{...%} is not ignored.
#
# RUN: echo XX %if feature %{YY%} ZZ
# RUN: echo AA %if feature %{BB%} %else %{CC%} DD
# RUN: echo AA %if nofeature %{BB%} %else %{CC%} DD
# CHECK: # {{RUN}}: at line [[#@LINE-3]]
# CHECK-NEXT: echo XX YY ZZ
# CHECK: # {{RUN}}: at line [[#@LINE-4]]
# CHECK-NEXT: echo AA BB DD
# CHECK: # {{RUN}}: at line [[#@LINE-5]]
# CHECK-NEXT: echo AA CC DD
# '{' and '}' can be used without escaping
#
# RUN: %if feature %{echo {}%}
# CHECK: # {{RUN}}: at line [[#@LINE-1]]
# CHECK-NEXT: echo {}
# Spaces are not required
#
# RUN: echo %if feature%{"ok"%}%else%{"fail"%}
# CHECK: # {{RUN}}: at line [[#@LINE-1]]
# CHECK-NEXT: echo "ok"
# Substitutions with braces are handled correctly
#
# RUN: echo %{sub} %if feature%{test-%{sub}%}%else%{"fail"%}
# CHECK: # {{RUN}}: at line [[#@LINE-1]]
# CHECK-NEXT: echo ok test-ok
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