File: variable_expansion.test

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###	SPAR <http://www.cpan.org/scripts/>
###	1	644	1151611756	1212336947	.makepprc
over1=over1 over2=over2 over4=not4 'bar=not ok'
###	304	644	1171960619	1329839344	RootMakeppfile
#
# This makefile tests variable setting and expansion as completely as we can.
#

.PHONY: all

targets := colon_equal_test patsubst_test rc_expansion shell_command \
	misc_gnu_make_functions user_func question_equal_test rc_test \
	filename_test define_test x y root_test global_test undef_test \
	globalize/over_test map_test bracket_test Makepp

ifeq $(mktemp) $(mktemp)
or ifeq $(mktemp xy) $(mktemp xy)
or ifeq $(mktemp xy.X) $(mktemp xy.X)
or ifneq $(mktemp) $(mktemp /)
or ifneq $(mktemp xy) $(mktemp /)
or ifneq $(mktemp xy.X) $(mktemp /)
  targets += mktemp_error	# This assignment is not supposed to take place
endif

all: $(targets)

#
# Check the difference between :=, ;= and regular variables, and test the
# += and &= constructs.
#
V1P_NOCOLON = 0
V1P_COLON := 0
V12 = 1
V1_NOCOLON = $(V12)		# Initially equal to 1, then finally equal to 2.
V1P_NOCOLON += $(V12)
V1P_NOCOLON &= $(V12)		# Should expand to "2 0 2" at the end.
V1P_COLON += $(V12)		# Should expand to "0 1" at the end.
V1_COLON := $(V12)
V12 = 12
V1_COLON &= $(V12)		# Should be equal to 12 1.
V12 = 2
V2_COLON := $(V12)		# Should be equal to 2.

i = 5
V1_SEMICOLON ;= $(perl 10 + ++$i)
V1_SEMICOLON += $(makeperl (100 + ++$$i)) # Nested parens (don't work with plain perl)
V1_SEMICOLON &= $(perl ++$i . '$') # Should expand each of these once and remember.
i = 0

colon_equal_test:
	&echo $(V1_NOCOLON) $(V2_NOCOLON) -o $@
	&echo ${V1_COLON} $(V2_COLON) -o>>$@
	&echo $(V1P_NOCOLON) $(V1P_COLON) -o>>$@
	&echo $(V1_SEMICOLON) $(V1_SEMICOLON) $(V1_SEMICOLON) -o>>$@

X = 1

QUESEQ ?= 1 $(X)
QUESEQ ?= 2 $(X)

X = 2

question_equal_test:
	&echo $(QUESEQ) -o $@

#
# Check the pattern substitution operator.
#
P = a.o b.o c.o d.o
Q = ax.o ay.o az.o
A := a
absurd	white space = ab
patsubst_test:
	&echo $(patsubst %.o, %.c, $(P)) -o $@
	&echo ${P:.o=.c} $(absurd	white space) $(absurd	white space:b=z) -o>>$@
	&echo $(patsubst a%.o, b%.c, $(Q)) -o>>$@
    ifeq $(&cut -d' ' -f0 .makepprc),over1=over1 # Builtin command as function
	&echo $(Q:$(A)%.o=$(X)%.c) : $(Q:a%=z) -o>>$@
    endif

#
# Check RC-style expansion
#
MAYBE_EMPTY =
GONE := a$( $(MAYBE_EMPTY))b
MAYBE_EMPTY = 1
ONE := a$( $(MAYBE_EMPTY))b
MAYBE_EMPTY = 2 3
TWO := a$( $(MAYBE_EMPTY))b
rc_expansion:
	&echo "a$(P)b" -o $@
	&echo z$(patsubst %.o, %.c, a$(P))y -o>>$@
	&echo a$( b c d)e -o>>$@
	&echo $(GONE) $(ONE) $(TWO) -o>>$@

#
# Check running shell commands:
#
SHELLVAR != echo Percy Bryce Shell

shell_command:
    ifperl Mpp::is_windows < 2
	exec > $@; \
	echo "$(shell echo she sells Bourne shells) "; \
	echo $(shell echo by the C shore) ''
    else
	echo $(shell echo she sells Bourne shells) > $@
	echo $(shell echo by the C shore) >> $@
    endif
	&echo $(SHELLVAR) -o>>$@

#
# Quick check on miscellaneous GNU-make style functions:
#
reverse = $(2) $1
map = $(foreach a,$2,$(call $1,$a))
one = $(1) $(2) $(3)
two = $(call one,$(1),foo,$(2))
DEP_foo = bar baz quux
DEP_baz = quux blarp
rest = $(wordlist 2,$(words ${1}),${1})
tclose = $(if $1,$(firstword $1) \
		$(call tclose,$(sort ${DEP_$(firstword $1)} $(call rest,$1))))

# The functions above are inspired by GNU make 3.81 testsuite.

downcase = ${map $1, $_ = lc}
mymap = $(if $2,$(call $1,$(firstword $2)) $(call $0,$1,$(call rest,$2)))
surround = ">$1<"

three = $$1 $$2
four = $(three)
five = $(call three,foo,bar)
six = $(call four,foo,bar)
seven := $(three)

misc_gnu_make_functions: makepp_simple_concatenation=1
misc_gnu_make_functions:
	&echo $(basename mydir.with.periods/version-1.0-module.c) \
	  $(basename subdir/xyz) -o $@
	&echo $(notdir some/directories/here/file) -o>>$@
	&echo $(addprefix a, b c d e) -o>>$@
	&echo $(addsuffix a, b c d e) -o>>$@
	&echo $(call reverse,bar,foo) -o>>$@
	&echo $(call reverse,bar) -o>>$@
	&echo $(call reverse,,foo) -o>>$@
	&echo $(call reverse,bar,foo,baz) -o>>$@
	&echo $(call map,surround,1 2 3 4 5) -o>>$@
	&echo $(call mymap,surround,A B C D E) -o>>$@
	&echo $(call mymap,downcase,ALL THESE WORDS ARE UPCASE) -o>>$@
	&echo $(call tclose,foo) -o>>$@
	&echo $(call two,bar,baz) -o>>$@
	&echo $(call three,bar,baz) -o>>$@
	&echo $(call four,bar,baz) -o>>$@
	&echo $(call five,bar,baz) -o>>$@
	&echo $(call six,bar,baz) -o>>$@
	&echo $(call seven,bar,baz) -o>>$@
	&echo $(dir abc/def/ghi file-without-dir) -o>>$@
	&echo $(filter %.c %.s, foo.c bar.c baz.s ugh.h) -o>>$@
	# Above test from GNU make docs.
	&echo $(filter-out main1.o main2.o,main1.o foo.o main2.o bar.o) -o>>$@
	&echo $(findstring a,a b c) x$(findstring a,b c)y -o>>$@
	&echo $(firstword word1 word2 word3) -o>>$@
	&echo $(sort a b c a q v b) -o>>$@
	&echo '"$(strip a   b c )"' -o>>$@
	&echo $(subst :, ,a:b:c) -o>>$@
	&echo $(suffix src/foo.c src-1.0/bar.c hacks) -o>>$@
	&echo $(word 2, foo bar baz) -o>>$@
	&echo $(wordlist 2, 3, foo bar baz) -o>>$@
	&echo $(words a b c) -o>>$@
	&echo $(if , $(print echo generated error), b) $(if true, c, $(print echo generated error)) -o>>$@
	# Above test checks for partial evaluation if the if operands.
	&echo $(foreach var, 1 2 3 4 5 6, number $(var)) -o>>$@
	&echo $(join a b c, .o .c) -o>>$@
	&echo $(origin RM) $(origin ^) $(origin I_hope_this_is_undefined) $(origin inputs) $(origin PATH) $(origin V12) -o>>$@

#
# Test of rc-style substitution:
#
rc_test: rc_off/rc_off_test
	&echo prefix_$( a b c d)_suffix -o $@
	&cat $^ -o>>$@

#
# Test of relative and absolute filenames and multiline $(( )):
#
filename_test:
	&echo $(relative_filename rc_off/.././././test) -o $@
	&echo $((relative_to a rc_off/Makeppfile,
		rc_off)) -o>>$@

#
# Test of define:
#
define echo-lines
	&echo $@ -o $@
	&echo This is the second line -o>>$@
endef

# Check that appending with define puts a newline, but that a newline in
# $(&command) gets turned into a space with deferred expansion.
define echo-lines +=
	&echo This is the third line -o>>$@
$(&echo '&echo transformed\nnewline -o>>$@')

endef

# Check override and that $(&command) preserves \n when expanded in define
override define bar :=
&echo OK -o>>define_test
$(&echo '&echo one line -o>>define_test\n&echo another line -o>>define_test')
enddef

define bar =
should not get here
enddef

define_test:
	$(echo-lines)
        $(bar)

#
# User defined function:
#
sub f_my_func {
  return 'a'.&arg.'b';
}
user_func:
	&echo $(my_func $(P)) -o $@

XX = $(Y)			# Test the difference between := and
Y = 1				# regular assignment for export.
Z := $(Y)

export XX Z

 YY := y

export FOO1 := $(YY)
var = FOO2
export $(var) = $(YY)
    export $(var:2=3) = y3
export $(subst 2,4, $(var)) = y4

YY = y2

x:
    ifperl Mpp::is_windows < 2
	echo "$$FOO1 $$FOO2 $$FOO3 $$FOO4 $$XX $$Z " > $@ # Call external echo to test export.
    else
	echo %FOO1% %FOO2% %FOO3% %FOO4% %XX% %Z% > $@
    endif

root := $(ROOT)
ROOT := bla

root_test: rc_off/root_test
	&cp $(input) $(output)
	&echo $(root) $(ROOT) -o>>$@

LOCAL = A

global G_0 = A
global G_A1 = a $(LOCAL)
global G_A2 := a $(LOCAL)

load_makefile rc_off

global_test: rc_off/global_test
	&echo $(G_A1) : $(G_A2) : $(G_B1) : $(G_B2) : $(G_C1) : $(G_C2) -o $@
	&echo $(G_0) : $(G_LATE1) : $(G_LATE2) -o >>$@

# Test putting a conditional and a rule into a variable
define bracket_rule =
  ifdef bracket_rule
    bracket_test: rc_off/bracket_test
	&cp $(input) $(output)
	&echo $[ a b]$[[ 1 2]] -o >>$(output)
  endif
enddef

$[bracket_rule]

OLDCHARS = abc
NEWCHARS = xyz
map_test:
	&echo $((map a-b c d-e, s/(.+)-(.+)/$2-$1/; $_ .= '$')) -o$(output)
	&echo $(makemap a-b c d-e, tr/$(OLDCHARS)/$(NEWCHARS)/ or $$_ = 'failed') -o>>$(output)
	&echo $(map a-b c d-e fg, undef $_ if /[cd]/) -o>>$(output)

# This comes from former 2004_04_27_target_specific_append.test:
y: YYY += yy$@

y:
	&echo "$(YYY)" -o $@


M%: RootM%file			# file- or patsubst used to overwrite $*
   &echo sh$* $(filesubst RootM%, t%, RootMakeppfile) -o M$*


# This comes from former 2004_04_01_append_to_undef.test:
B = YYY
C += $(B)
B = BBB

undef_test:
	&echo 'B = $(B)\nC = $(C)' -o $@
###	D	755	1171960696	1171960688	globalize/
###	28	644	1171960620	1149012551	globalize/Makeppfile
# This should be the last Makefile that gets read.

LOCAL = C

G_0 = C
G_A1 += c $(LOCAL)
G_A2 += c $(LOCAL)
G_B1 += c $(LOCAL)
G_B2 += c $(LOCAL)
global G_C1 = c $(LOCAL)
global G_C2 := c $(LOCAL)

global G_LATE1 G_LATE2
G_LATE1 = late1
G_LATE2 := late2

over1 += 1not
override over1 += 1more
over1 += 1not
override over1 += 1again

override over3 = 3		# override an unset var

over_test: override over4 = 4
over_test: over4 += 4not
over_test: override over4 += 4more
over_test:
	&echo $(over1) : $(over2) : $(over3) : $(over4) -o $@
###	D	755	1171960696	1171960688	rc_off/
###	60	644	1293060494	1316312410	rc_off/Makeppfile
#
# Test substitution with rc-style substitution turned off.
#
makepp_simple_concatenation = 1

words := a b c d e

null :=

X := a $(null)		# X has a trailing space.

rc_off_test:
	&echo prefix_$(words)_suffix -o $@
	&echo $(X)a -o>>$@

root := $(ROOT)
ROOT = bla

sub relative {
  my $dir = Mpp::File::path_file_info( 'a/b/c/d/e/f' )->{'..'};
  my $ret = Mpp::File::relative_filename( $dir ) . "\n";
  for my $name ( qw(a/b/c/d/e a/b/c/d/4 a/b/c/d a/b/c/3 a/b/c a/b/2 a/b a/1 a) ) {
    my $finfo = Mpp::File::path_file_info $name;
    $ret .= Mpp::File::relative_filename( $dir, $finfo ) . ' ' if $name !~ /\d/; # Only for dirs
    $ret .= Mpp::File::relative_filename( $finfo, $dir ) . ' ' . Mpp::File::relative_filename( $finfo ) . "\n";
  }
  chop $ret;
  $ret;
}

root_test:
	&echo $(root) $(ROOT) $(map $(find-upwards RootMakeppfile $(root) rc_off Makeppfile), tr/RM/rm/) -o>$@
	&expr &relative -o>>$@

LOCAL = B

G_0 = B
G_A1 += b $(LOCAL)
G_A2 += b $(LOCAL)
global G_B1 = b $(LOCAL)
global G_B2 := b $(LOCAL)

G_LATE1 = early1
G_LATE2 := early2

override global over2 += 2more

load_makefile ../globalize	# Should not globalize our already existing locals.

global_test:
	&echo $(G_A1) : $(G_A2) : $(G_B1) : $(G_B2) : $(G_C1) : $(G_C2) -o $@
	&echo $(G_0) : $(G_LATE1) : $(G_LATE2) -o >>$@

ab = a b
define bracket_rule =
  bracket_$1:
	&echo $[ab]$[[ 1 2]] -o $$(output)
enddef
ab = x y z			# make sure define did this
$[bracket_rule test]
###	D	755	1171960696	1171960666	answers/
###	2	644	1151612515	1178277103	answers/bracket_test
a b1 2
a1 a2 b1 b2
###	4	644	1171960657	1171960657	answers/colon_equal_test
2
12 1 2
2 0 2 0 1
1$ 12 103 1$ 12 103 1$ 12 103
###	7	644	1151612515	1177022033	answers/define_test
define_test
This is the second line
This is the third line
transformed newline
OK
one line
another line
###	2	755	1149026136	1149015251	answers/global_test
a A b A c A : a A b B c C : b A c A : b B c C : c A : c C
C : late1 : late2
###	1	644	1322084693	1322084693	answers/Makepp
shakepp takeppfile
###	3	755	1171960541	1171960541	answers/map_test
b-a$ c$ e-d$
x-y z failed
a-b fg
###	34	644	1067451880	1211098944	answers/misc_gnu_make_functions
mydir.with.periods/version-1.0-module subdir/xyz
file
ab ac ad ae
ba ca da ea
foo bar
bar
foo
foo bar
>1< >2< >3< >4< >5<
>A< >B< >C< >D< >E<
all these words are upcase
foo bar baz blarp quux
bar foo baz
$1 $2
$1 $2
$1 $2
$1 $2
$1 $2
abc/def/ ./
foo.c bar.c baz.s
foo.o bar.o
a xy
word1
a b c q v
"a b c"
a b c
.c .c
bar
bar baz
3
b c
number 1 number 2 number 3 number 4 number 5 number 6
a.o b.c c
default automatic undefined automatic environment file
###	1	644	1067451880	1190053951	answers/n_files
23 1 0
###	4	644	1067451880	1329839323	answers/patsubst_test
a.c b.c c.c d.c
a.c b.c c.c d.c ab az
bx.c by.c bz.c
2x.c 2y.c 2z.c : z z z
###	1	644	1067451880	967520887	answers/question_equal_test
1 2
###	4	644	1067451880	1172185915	answers/rc_expansion
aa.ob ab.ob ac.ob ad.ob
zaa.cy zab.cy zac.cy zad.cy
abe ace ade
a1b a2b a3b
###	3	644	1067451880	990030852	answers/rc_test
prefix_a_suffix prefix_b_suffix prefix_c_suffix prefix_d_suffix
prefix_a b c d e_suffix
a a
###	12	644	1293060509	1293060509	answers/root_test
.. bla ../rootmakeppfile .. . makeppfile
a/b/c/d/e
. . a/b/c/d/e
../4 a/b/c/d/4
e .. a/b/c/d
../../3 a/b/c/3
d/e ../.. a/b/c
../../../2 a/b/2
c/d/e ../../.. a/b
../../../../1 a/1
b/c/d/e ../../../.. a
. bla
###	3	644	1067451880	967520645	answers/shell_command
she sells Bourne shells 
by the C shore 
Percy Bryce Shell
###	2	644	1151520389	1080869684	answers/undef_test
B = BBB
C = BBB
###	1	644	1067451880	965338704	answers/user_func
aa.o b.o c.o d.ob
###	1	644	1148550085	1076548106	answers/x
y y2 y3 y4 1 1 
###	1	644	1083086704	1083086676	answers/y
yyy
###	D	755	1171960696	1151611756	answers/globalize/
###	1	644	1151611756	1151611756	answers/globalize/over_test
over1 1more 1again : over2 2more : 3 : 4 4more
###	D	755	1171960696	1149012551	answers/rc_off/
###	2	755	1149026140	1149012551	answers/rc_off/global_test
a B b B c B : a A b B c C : b B c B : b B c C : c B : c C
C : early1 : early2