136 lines
3.9 KiB
Text
136 lines
3.9 KiB
Text
|
# Empty values are permitted and reasonable, especially when just establishing
|
||
|
|
# expansion order.
|
||
|
|
#
|
||
|
|
# DEFINE: %{empty}=
|
||
|
|
# RUN: echo "'%{empty}'"
|
||
|
|
# CHECK:# | ''
|
||
|
|
#
|
||
|
|
# REDEFINE: %{empty}=
|
||
|
|
# RUN: echo "'%{empty}'"
|
||
|
|
# CHECK:# | ''
|
||
|
|
|
||
|
|
# A value consisting only of whitespace is trimmed to the empty string.
|
||
|
|
#
|
||
|
|
# v~~ intentional whitespace
|
||
|
|
# DEFINE: %{ws}=
|
||
|
|
# RUN: echo "'%{ws}'"
|
||
|
|
# CHECK:# | ''
|
||
|
|
#
|
||
|
|
# v intentional whitespace
|
||
|
|
# REDEFINE: %{ws}=
|
||
|
|
# RUN: echo "'%{ws}'"
|
||
|
|
# CHECK:# | ''
|
||
|
|
|
||
|
|
# Whitespace is not required around the name or value.
|
||
|
|
#
|
||
|
|
# DEFINE:%{no-whitespace}=abc
|
||
|
|
# RUN: echo "'%{no-whitespace}'"
|
||
|
|
# CHECK:# | 'abc'
|
||
|
|
#
|
||
|
|
# REDEFINE:%{no-whitespace}=HelloWorld
|
||
|
|
# RUN: echo "'%{no-whitespace}'"
|
||
|
|
# CHECK:# | 'HelloWorld'
|
||
|
|
|
||
|
|
# Whitespace is not required between substitutions in a value.
|
||
|
|
#
|
||
|
|
# DEFINE: %{adjacent0} = foo
|
||
|
|
# DEFINE: %{adjacent1} = bar
|
||
|
|
# DEFINE: %{has-adjacent-substs} = %{adjacent0}%{adjacent1}
|
||
|
|
# RUN: echo "'%{has-adjacent-substs}'"
|
||
|
|
# CHECK:# | 'foobar'
|
||
|
|
#
|
||
|
|
# REDEFINE: %{has-adjacent-substs} = %{adjacent0}%{adjacent1}%{adjacent0}
|
||
|
|
# RUN: echo "'%{has-adjacent-substs}'"
|
||
|
|
# CHECK:# | 'foobarfoo'
|
||
|
|
|
||
|
|
# Exact whitespace is preserved within the value, but whitespace enclosing the
|
||
|
|
# name or value is discarded. ('%{' and '}' are part of the name, and
|
||
|
|
# whitespace in between isn't permitted.)
|
||
|
|
#
|
||
|
|
# v~~ intentional whitespace
|
||
|
|
# DEFINE: %{whitespace} = abc def
|
||
|
|
# RUN: echo "'%{whitespace}'"
|
||
|
|
# CHECK:# | 'abc def'
|
||
|
|
# v intentional whitespace
|
||
|
|
# REDEFINE: %{whitespace} = Hello World
|
||
|
|
# RUN: echo "'%{whitespace}'"
|
||
|
|
# CHECK:# | 'Hello World'
|
||
|
|
|
||
|
|
# Line continuations in the value are permitted and collapse whitespace.
|
||
|
|
#
|
||
|
|
# DEFINE: %{continue} = abc\
|
||
|
|
# DEFINE:def \
|
||
|
|
# DEFINE:ghi\
|
||
|
|
# DEFINE: jkl \
|
||
|
|
# DEFINE: mno \
|
||
|
|
# DEFINE: pqr
|
||
|
|
# ^ intentional whitespace
|
||
|
|
# RUN: echo "'%{continue}'"
|
||
|
|
# CHECK:# | 'abc def ghi jkl mno pqr'
|
||
|
|
#
|
||
|
|
# REDEFINE: %{continue} = abc \
|
||
|
|
# REDEFINE: def
|
||
|
|
# RUN: echo "'%{continue}'"
|
||
|
|
# CHECK:# | 'abc def'
|
||
|
|
|
||
|
|
# Whitespace at the end of the line after a '\' is ignored, and it's treated as
|
||
|
|
# a line continuation. Otherwise, the behavior would be hard to understand
|
||
|
|
# because it looks like a line continuation.
|
||
|
|
#
|
||
|
|
# v~~~~~~~~~~~ intentional whitespace
|
||
|
|
# DEFINE: %{ws-after-continue}=foo \
|
||
|
|
# DEFINE: bar \
|
||
|
|
# ^ intentional whitespace
|
||
|
|
# DEFINE: baz
|
||
|
|
# RUN: echo "'%{ws-after-continue}'"
|
||
|
|
# CHECK:# | 'foo bar baz'
|
||
|
|
#
|
||
|
|
# v intentional whitespace
|
||
|
|
# REDEFINE: %{ws-after-continue}=foo \
|
||
|
|
# REDEFINE: bar \
|
||
|
|
# ^~~~~~~~~~~~ intentional whitespace
|
||
|
|
# REDEFINE: baz
|
||
|
|
# RUN: echo "'%{ws-after-continue}'"
|
||
|
|
# CHECK:# | 'foo bar baz'
|
||
|
|
|
||
|
|
# A line continuation is recognized anywhere. It should be used only where
|
||
|
|
# whitespace is permitted because it reduces to a single space.
|
||
|
|
#
|
||
|
|
# Directives with at least one non-whitespace character (could be '\') are
|
||
|
|
# permitted even if they contribute nothing to the value. There might be no
|
||
|
|
# practical use, but check that it behaves as expected.
|
||
|
|
#
|
||
|
|
# DEFINE:\
|
||
|
|
# DEFINE:%{blank-lines}\
|
||
|
|
# DEFINE:\
|
||
|
|
# DEFINE:=\
|
||
|
|
# DEFINE:\
|
||
|
|
# DEFINE:a
|
||
|
|
# RUN: echo "'%{blank-lines}'"
|
||
|
|
# CHECK:# | 'a'
|
||
|
|
#
|
||
|
|
# REDEFINE: \
|
||
|
|
# REDEFINE: %{blank-lines} \
|
||
|
|
# REDEFINE: \
|
||
|
|
# REDEFINE: = \
|
||
|
|
# REDEFINE: \
|
||
|
|
# REDEFINE: a \
|
||
|
|
# REDEFINE: \
|
||
|
|
# REDEFINE: b \
|
||
|
|
# REDEFINE: \
|
||
|
|
# REDEFINE: c
|
||
|
|
# RUN: echo "'%{blank-lines}'"
|
||
|
|
# CHECK:# | 'a b c'
|
||
|
|
|
||
|
|
# The fourth DEFINE line is deceptive because it looks like a new substitution,
|
||
|
|
# but it's actually a continuation of the previous value.
|
||
|
|
#
|
||
|
|
# DEFINE: %{name}=x
|
||
|
|
# DEFINE: %{value}=3
|
||
|
|
# DEFINE: %{deceptive-continue}=echo \
|
||
|
|
# DEFINE: %{name}=%{value}
|
||
|
|
# RUN: %{deceptive-continue}
|
||
|
|
# CHECK:# | x=3
|
||
|
|
|
||
|
|
# CHECK:{{ *}}Passed: 1 {{\([0-9]*\.[0-9]*%\)}}
|