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make(1): demonstrate parse error in string interpolation in condition

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This commit is contained in:
rillig 2020-10-30 08:13:17 +00:00
parent c743b1bd9f
commit 9b4bcdd1d9
2 changed files with 21 additions and 1 deletions
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1
usr.bin/make/unit-tests/cond-cmp-string.exp
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@ -3,6 +3,7 @@ make: "cond-cmp-string.mk" line 37: Malformed conditional ("string" != "str""ing
make: "cond-cmp-string.mk" line 42: warning: String comparison operator must be either == or !=
make: "cond-cmp-string.mk" line 42: Malformed conditional (!("value" = "value"))
make: "cond-cmp-string.mk" line 49: Malformed conditional (!("value" === "value"))
make: "cond-cmp-string.mk" line 63: Malformed conditional (${:Uword} != "${:Uword} ")
make: Fatal errors encountered -- cannot continue
make: stopped in unit-tests
exit status 1

21
usr.bin/make/unit-tests/cond-cmp-string.mk
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@ -1,4 +1,4 @@
# $NetBSD: cond-cmp-string.mk,v 1.6 2020/10/24 08:46:08 rillig Exp $
# $NetBSD: cond-cmp-string.mk,v 1.7 2020/10/30 08:13:17 rillig Exp $
#
# Tests for string comparisons in .if conditions.
@ -52,3 +52,22 @@
. error
.endif
# A variable expression can be enclosed in double quotes.
.if ${:Uword} != "${:Uword}"
. error
.endif
# XXX: As of 2020-10-30, adding a space to the string results in a parse
# error. This is a bug and should have been caught much earlier.
# I wonder since when it exists.
.if ${:Uword} != "${:Uword} "
. error
.else
. error
.endif
# Adding a space at the beginning of the quoted variable expression works
# though.
.if ${:U word } != " ${:Uword} "
. error
.endif