Module Name: src
Committed By: rillig
Date: Sun Sep 27 18:11:31 UTC 2020
Modified Files:
src/usr.bin/make/unit-tests: varmod-range.mk
Log Message:
make(1): add test cases for the :range variable modifier
To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 src/usr.bin/make/unit-tests/varmod-range.mk
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/usr.bin/make/unit-tests/varmod-range.mk
diff -u src/usr.bin/make/unit-tests/varmod-range.mk:1.3 src/usr.bin/make/unit-tests/varmod-range.mk:1.4
--- src/usr.bin/make/unit-tests/varmod-range.mk:1.3 Sun Aug 23 15:13:21 2020
+++ src/usr.bin/make/unit-tests/varmod-range.mk Sun Sep 27 18:11:31 2020
@@ -1,8 +1,36 @@
-# $NetBSD: varmod-range.mk,v 1.3 2020/08/23 15:13:21 rillig Exp $
+# $NetBSD: varmod-range.mk,v 1.4 2020/09/27 18:11:31 rillig Exp $
#
# Tests for the :range variable modifier, which generates sequences
# of integers from the given range.
+# The :range modifier generates a sequence of integers, one number per
+# word of the variable expression's value.
+.if ${a b c:L:range} != "1 2 3"
+. error
+.endif
+
+# To preserve spaces in a word, they can be enclosed in quotes, just like
+# everywhere else.
+.if ${:U first "the second word" third 4 :range} != "1 2 3 4"
+. error
+.endif
+
+# The :range modifier takes the number of words from the value of the
+# variable expression. If that expression is undefined, the range is
+# undefined as well. This should not come as a surprise.
+.if "${:range}" != ""
+. error
+.endif
+
+# The :range modifier can be given a parameter, which makes the generated
+# range independent from the value or the name of the variable expression.
+#
+# XXX: As of 2020-09-27, the :range=... modifier does not turn the undefined
+# expression into a defined one. This looks like an oversight.
+.if "${:range=5}" != ""
+. error
+.endif
+
all:
@echo ${a b c:L:rang} # modifier name too short
@echo ${a b c:L:range} # ok
