[src/trunk]: src/usr.bin/make/unit-tests make(1): demonstrate inconsistent :t...

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/44b9d8c9efe2
branches:  trunk
changeset: 936096:44b9d8c9efe2
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sun Jul 19 07:08:09 2020 +0000

description:
make(1): demonstrate inconsistent :ts behavior among modifiers

diffstat:

 usr.bin/make/unit-tests/modts.exp |   5 +++++
 usr.bin/make/unit-tests/modts.mk  |  18 +++++++++++++++++-
 2 files changed, 22 insertions(+), 1 deletions(-)

diffs (45 lines):

diff -r ed1ee2421936 -r 44b9d8c9efe2 usr.bin/make/unit-tests/modts.exp
--- a/usr.bin/make/unit-tests/modts.exp Sun Jul 19 06:56:09 2020 +0000
+++ b/usr.bin/make/unit-tests/modts.exp Sun Jul 19 07:08:09 2020 +0000
@@ -36,4 +36,9 @@
 FU_mod-ts="a/b/cool"
 FU_mod-ts:ts:T="cool" == cool?
 B.${AAA:ts}="Baaa" == Baaa?
+:ts :S => aaxBbxaaxbbxaaxbb
+:ts :S space    => axa a axc
+:ts :S space :M => axaxaxaxc
+:ts :S    => axa a axc
+:ts :S :@ => axa a axc
 exit status 0
diff -r ed1ee2421936 -r 44b9d8c9efe2 usr.bin/make/unit-tests/modts.mk
--- a/usr.bin/make/unit-tests/modts.mk  Sun Jul 19 06:56:09 2020 +0000
+++ b/usr.bin/make/unit-tests/modts.mk  Sun Jul 19 07:08:09 2020 +0000
@@ -7,7 +7,7 @@
 AAA= a a a
 B.aaa= Baaa
 
-all:   mod-ts
+all:   mod-ts mod-ts-space
 
 # Use print or printf iff they are builtin.
 # XXX note that this causes problems, when make decides 
@@ -42,3 +42,19 @@
        @${PRINT} 'FU_$@="${FU_${@:ts}:ts}"'
        @${PRINT} 'FU_$@:ts:T="${FU_${@:ts}:ts:T}" == cool?'
        @${PRINT} 'B.$${AAA:ts}="${B.${AAA:ts}}" == Baaa?'
+
+mod-ts-space:
+       # After the :ts modifier, the whole string is interpreted as a single
+       # word since all spaces have been replaced with x.
+       @${PRINT} ':ts :S => '${aa bb aa bb aa bb:L:tsx:S,b,B,:Q}
+
+       # The :ts modifier also applies to word separators that are added
+       # afterwards.
+       @${PRINT} ':ts :S space    => '${a ababa c:L:tsx:S,b, ,g:Q}
+       @${PRINT} ':ts :S space :M => '${a ababa c:L:tsx:S,b, ,g:M*:Q}
+
+       # Not all modifiers behave this way though.  Some of them always use
+       # a space as word separator instead of the :ts separator.
+       # This seems like an oversight during implementation.
+       @${PRINT} ':ts :S    => '${a ababa c:L:tsx:S,b, ,g:Q}
+       @${PRINT} ':ts :S :@ => '${a ababa c:L:tsx:S,b, ,g:@v@${v}@:Q}