diff options
Diffstat (limited to 'unit-tests/modmisc.mk')
| -rw-r--r-- | unit-tests/modmisc.mk | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/unit-tests/modmisc.mk b/unit-tests/modmisc.mk index 8c20304ba1ef2..d0c334342934a 100644 --- a/unit-tests/modmisc.mk +++ b/unit-tests/modmisc.mk @@ -1,4 +1,4 @@ -# $Id: modmisc.mk,v 1.1.1.2 2020/07/04 17:52:46 sjg Exp $ +# $Id: modmisc.mk,v 1.1.1.3 2020/07/09 22:35:19 sjg Exp $ # # miscellaneous modifier tests @@ -17,6 +17,7 @@ MOD_SEP=S,:, ,g all: modvar modvarloop modsysv mod-HTE emptyvar undefvar all: mod-S mod-C mod-at-varname mod-at-resolve +all: mod-subst-dollar mod-loop-dollar modsysv: @echo "The answer is ${libfoo.a:L:libfoo.a=42}" @@ -93,3 +94,34 @@ RES3= 3 mod-at-resolve: @echo $@:${RESOLVE:@v@w${v}w@:Q}: + +# No matter how many dollar characters there are, they all get merged +# into a single dollar by the :S modifier. +mod-subst-dollar: + @echo $@:${:U1:S,^,$,:Q}: + @echo $@:${:U2:S,^,$$,:Q}: + @echo $@:${:U3:S,^,$$$,:Q}: + @echo $@:${:U4:S,^,$$$$,:Q}: + @echo $@:${:U5:S,^,$$$$$,:Q}: + @echo $@:${:U6:S,^,$$$$$$,:Q}: + @echo $@:${:U7:S,^,$$$$$$$,:Q}: + @echo $@:${:U8:S,^,$$$$$$$$,:Q}: +# This generates no dollar at all: + @echo $@:${:UU8:S,^,${:U$$$$$$$$},:Q}: +# Here is an alternative way to generate dollar characters. +# It's unexpectedly complicated though. + @echo $@:${:U:range=5:ts\x24:C,[0-9],,g:Q}: + +# Demonstrate that it is possible to generate dollar characters using the +# :@ modifier. +# +# These are edge cases that could have resulted in a parse error as well +# since the $@ at the end could have been interpreted as a variable, which +# would mean a missing closing @ delimiter. +mod-loop-dollar: + @echo $@:${:U1:@word@${word}$@:Q}: + @echo $@:${:U2:@word@$${word}$$@:Q}: + @echo $@:${:U3:@word@$$${word}$$$@:Q}: + @echo $@:${:U4:@word@$$$${word}$$$$@:Q}: + @echo $@:${:U5:@word@$$$$${word}$$$$$@:Q}: + @echo $@:${:U6:@word@$$$$$${word}$$$$$$@:Q}: |