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make(1): add test for double expansion in SySV modifier

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This commit is contained in:
rillig 2020-10-06 21:19:17 +00:00
parent c4464b7b4b
commit 80fb3ceeda
1 changed files with 13 additions and 1 deletions
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14
usr.bin/make/unit-tests/varmod-sysv.mk
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@ -1,4 +1,4 @@
# $NetBSD: varmod-sysv.mk,v 1.4 2020/10/06 21:05:21 rillig Exp $
# $NetBSD: varmod-sysv.mk,v 1.5 2020/10/06 21:19:17 rillig Exp $
#
# Tests for the ${VAR:from=to} variable modifier, which replaces the suffix
# "from" with "to". It can also use '%' as a wildcard.
@ -88,3 +88,15 @@ LIST= one two
.if ${LIST:%nes=%xxx} != "one two" # lhs is longer than the word "one"
. error
.endif
# As of 2020-10-06, the right-hand side of the SysV modifier is expanded
# twice. The first expansion happens in ApplyModifier_SysV, where the
# modifier is split into its two parts. The second expansion happens
# when each word is replaced in ModifyWord_SYSVSubst.
# XXX: This is unexpected. Add more test case to demonstrate the effects
# of removing one of the expansions.
VALUE= value
INDIRECT= 1:${VALUE} 2:$${VALUE} 4:$$$${VALUE}
.if ${x:L:x=${INDIRECT}} != "1:value 2:value 4:\${VALUE}"
. error
.endif