diff options
Diffstat (limited to 'unit-tests/modmisc.mk')
| -rw-r--r-- | unit-tests/modmisc.mk | 113 |
1 files changed, 39 insertions, 74 deletions
diff --git a/unit-tests/modmisc.mk b/unit-tests/modmisc.mk index d0c334342934..f2977da8a0ba 100644 --- a/unit-tests/modmisc.mk +++ b/unit-tests/modmisc.mk @@ -1,4 +1,4 @@ -# $Id: modmisc.mk,v 1.1.1.3 2020/07/09 22:35:19 sjg Exp $ +# $Id: modmisc.mk,v 1.1.1.15 2020/08/23 15:52:08 sjg Exp $ # # miscellaneous modifier tests @@ -15,13 +15,15 @@ MOD_HOMES=S,/home/,/homes/, MOD_OPT=@d@$${exists($$d):?$$d:$${d:S,/usr,/opt,}}@ 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 +all: modvar modvarloop modsysv emptyvar undefvar +all: mod-quote +all: mod-break-many-words +# See also sysv.mk. modsysv: @echo "The answer is ${libfoo.a:L:libfoo.a=42}" +# Demonstrates modifiers that are given indirectly from a variable. modvar: @echo "path='${path}'" @echo "path='${path:${MOD_NODOT}}'" @@ -39,13 +41,6 @@ modvarloop: @echo "paths=${paths}" @echo "PATHS=${paths:tu}" -PATHNAMES= a/b/c def a.b.c a.b/c a a.a .gitignore a a.a -mod-HTE: - @echo "dirname of '"${PATHNAMES:Q}"' is '"${PATHNAMES:H:Q}"'" - @echo "basename of '"${PATHNAMES:Q}"' is '"${PATHNAMES:T:Q}"'" - @echo "suffix of '"${PATHNAMES:Q}"' is '"${PATHNAMES:E:Q}"'" - @echo "root of '"${PATHNAMES:Q}"' is '"${PATHNAMES:R:Q}"'" - # When a modifier is applied to the "" variable, the result is discarded. emptyvar: @echo S:${:S,^$,empty,} @@ -61,67 +56,37 @@ undefvar: @echo C:${:U:C,^$,empty,} @echo @:${:U:@var@empty@} -mod-S: - @echo :${:Ua b b c:S,a b,,:Q}: - @echo :${:Ua b b c:S,a b,,1:Q}: - @echo :${:Ua b b c:S,a b,,W:Q}: - @echo :${:Ua b b c:S,b,,g:Q}: - @echo :${:U1 2 3 1 2 3:S,1 2,___,Wg:S,_,x,:Q}: - -mod-C: - @echo :${:Ua b b c:C,a b,,:Q}: - @echo :${:Ua b b c:C,a b,,1:Q}: - @echo :${:Ua b b c:C,a b,,W:Q}: - @echo :${:Uword1 word2:C,****,____,g:C,word,____,:Q}: - @echo :${:Ua b b c:C,b,,g:Q}: - @echo :${:U1 2 3 1 2 3:C,1 2,___,Wg:C,_,x,:Q}: - -# In the :@ modifier, the name of the loop variable can even be generated -# dynamically. There's no practical use-case for this, and hopefully nobody -# will ever depend on this, but technically it's possible. -mod-at-varname: - @echo :${:Uone two three:@${:Ubar:S,b,v,}@+${var}+@:Q}: - -# The :@ modifier resolves the variables a little more often than expected. -# In particular, it resolves _all_ variables from the context, and not only -# the loop variable (in this case v). -# -# The d means direct reference, the i means indirect reference. -RESOLVE= ${RES1} $${RES1} -RES1= 1d${RES2} 1i$${RES2} -RES2= 2d${RES3} 2i$${RES3} -RES3= 3 - -mod-at-resolve: - @echo $@:${RESOLVE:@v@w${v}w@:Q}: - -# No matter how many dollar characters there are, they all get merged -# into a single dollar by the :S modifier. -mod-subst-dollar: - @echo $@:${:U1:S,^,$,:Q}: - @echo $@:${:U2:S,^,$$,:Q}: - @echo $@:${:U3:S,^,$$$,:Q}: - @echo $@:${:U4:S,^,$$$$,:Q}: - @echo $@:${:U5:S,^,$$$$$,:Q}: - @echo $@:${:U6:S,^,$$$$$$,:Q}: - @echo $@:${:U7:S,^,$$$$$$$,:Q}: - @echo $@:${:U8:S,^,$$$$$$$$,:Q}: -# This generates no dollar at all: - @echo $@:${:UU8:S,^,${:U$$$$$$$$},:Q}: -# Here is an alternative way to generate dollar characters. -# It's unexpectedly complicated though. - @echo $@:${:U:range=5:ts\x24:C,[0-9],,g:Q}: - -# Demonstrate that it is possible to generate dollar characters using the -# :@ modifier. + +mod-quote: + @echo $@: new${.newline:Q}${.newline:Q}line + +# Cover the bmake_realloc in brk_string. +mod-break-many-words: + @echo $@: ${UNDEF:U:range=500:[#]} + +# To apply a modifier indirectly via another variable, the whole +# modifier must be put into a single variable. +.if ${value:L:${:US}${:U,value,replacement,}} != "S,value,replacement,}" +.warning unexpected +.endif + +# Adding another level of indirection (the 2 nested :U expressions) helps. +.if ${value:L:${:U${:US}${:U,value,replacement,}}} != "replacement" +.warning unexpected +.endif + +# Multiple indirect modifiers can be applied one after another as long as +# they are separated with colons. +.if ${value:L:${:US,a,A,}:${:US,e,E,}} != "vAluE" +.warning unexpected +.endif + +# An indirect variable that evaluates to the empty string is allowed though. +# This makes it possible to define conditional modifiers, like this: # -# These are edge cases that could have resulted in a parse error as well -# since the $@ at the end could have been interpreted as a variable, which -# would mean a missing closing @ delimiter. -mod-loop-dollar: - @echo $@:${:U1:@word@${word}$@:Q}: - @echo $@:${:U2:@word@$${word}$$@:Q}: - @echo $@:${:U3:@word@$$${word}$$$@:Q}: - @echo $@:${:U4:@word@$$$${word}$$$$@:Q}: - @echo $@:${:U5:@word@$$$$${word}$$$$$@:Q}: - @echo $@:${:U6:@word@$$$$$${word}$$$$$$@:Q}: +# M.little-endian= S,1234,4321, +# M.big-endian= # none +.if ${value:L:${:Dempty}S,a,A,} != "vAlue" +.warning unexpected +.endif + |