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      1 # $NetBSD: moderrs.mk,v 1.47 2025/06/28 22:39:29 rillig Exp $
      2 #
      3 # various modifier error tests
      4 
      5 VAR=		TheVariable
      6 # in case we have to change it ;-)
      7 MOD_UNKN=	Z
      8 MOD_TERM=	S,V,v
      9 MOD_S:=		${MOD_TERM},
     10 
     11 FIB=	1 1 2 3 5 8 13 21 34
     12 
     13 all:	mod-unknown-direct mod-unknown-indirect
     14 all:	unclosed-direct unclosed-indirect
     15 all:	unfinished-indirect unfinished-loop-{1,2,3}
     16 all:	loop-close-{1,2}
     17 all:	words-{1,2,3}
     18 all:	exclam-{1,2}
     19 all:	mod-subst-delimiter-{1,2,3,4,5,6,7}
     20 all:	mod-regex-delimiter-{1,2,3,4,5,6,7}
     21 all:	mod-ts-parse-{1,2,3,4,5}
     22 all:	mod-t-parse-{1,2,3,4}
     23 all:	mod-ifelse-parse-{1,2,3,4,5}
     24 all:	mod-remember-parse
     25 all:	mod-sysv-parse-{1,2,3,4}
     26 
     27 mod-unknown-direct:
     28 # expect: make: Unknown modifier ":Z"
     29 	@echo 'VAR:Z=before-${VAR:Z}-after'
     30 
     31 mod-unknown-indirect:
     32 # expect: make: Unknown modifier ":Z"
     33 	@echo 'VAR:${MOD_UNKN}=before-${VAR:${MOD_UNKN}:inner}-after'
     34 
     35 unclosed-direct:
     36 # expect: make: Unclosed expression, expecting "}" for modifier "S,V,v,"
     37 	@echo VAR:S,V,v,=${VAR:S,V,v,
     38 
     39 unclosed-indirect:
     40 # expect: make: Unclosed expression after indirect modifier, expecting "}"
     41 	@echo VAR:${MOD_TERM},=${VAR:${MOD_S}
     42 
     43 unfinished-indirect:
     44 # expect: make: Unfinished modifier after "v", expecting ","
     45 	-@echo "VAR:${MOD_TERM}=${VAR:${MOD_TERM}}"
     46 
     47 unfinished-loop-1:
     48 # expect: make: Unfinished modifier after "var}", expecting "@"
     49 	@echo ${UNDEF:U1 2 3:@var}
     50 unfinished-loop-2:
     51 # expect: make: Unfinished modifier after "...}", expecting "@"
     52 	@echo ${UNDEF:U1 2 3:@var (a] ...}
     53 unfinished-loop-3:
     54 	@echo ${UNDEF:U1 2 3:@var@${var}@}
     55 
     56 # The closing brace after the ${var} is part of the replacement string.
     57 # In ParseModifierPart, braces and parentheses don't have to be balanced.
     58 # This is contrary to the :M, :N modifiers, where both parentheses and
     59 # braces must be balanced.
     60 # This is also contrary to the SysV modifier, where only the actually
     61 # used delimiter (either braces or parentheses) must be balanced.
     62 loop-close-1:
     63 # expect: make: Unclosed expression, expecting "}" for modifier "@var@${var}}...@"
     64 	@echo ${UNDEF:U1 2 3:@var@${var}}...@
     65 loop-close-2:
     66 	@echo ${UNDEF:U1 2 3:@var@${var}}...@}
     67 
     68 words-1:
     69 # expect: make: Unfinished modifier after "}", expecting "]"
     70 	@echo ${UNDEF:U1 2 3:[}
     71 words-2:
     72 # expect: make: Unfinished modifier after "#}", expecting "]"
     73 	@echo ${UNDEF:U1 2 3:[#}
     74 
     75 words-3:
     76 	# out of bounds => empty
     77 	@echo 13=${UNDEF:U1 2 3:[13]}
     78 
     79 	# Word index out of bounds.
     80 	#
     81 	# Until 2020-11-01, the behavior in this case depended upon the size
     82 	# of unsigned long.
     83 	#
     84 	# On LP64I32, strtol returns LONG_MAX, which was then truncated to
     85 	# int (undefined behavior), typically resulting in -1.  This -1 was
     86 	# interpreted as "the last word".
     87 	#
     88 	# On ILP32, strtol returns LONG_MAX, which is a large number.  This
     89 	# resulted in a range from LONG_MAX - 1 to 3, which was empty.
     90 	#
     91 	# Since 2020-11-01, the numeric overflow is detected and generates an
     92 	# error.  In the remainder of the text, the '$,' is no longer parsed
     93 	# as part of a variable modifier, where it would have been interpreted
     94 	# as an anchor to the :S modifier, but as a normal variable named ','.
     95 	# That variable is undefined, resulting in an empty string.
     96 	@echo 12345=${UNDEF:U1 2 3:[123451234512345123451234512345]:S,^$,ok,:S,^3$,ok,}
     97 
     98 exclam-1:
     99 # expect: make: Unfinished modifier after "echo}", expecting "!"
    100 	@echo ${VARNAME:!echo}
    101 	# When the final exclamation mark is missing, there is no
    102 	# fallback to the SysV substitution modifier.
    103 	# If there were a fallback, the output would be "exclam",
    104 	# and the above would have produced an "Unknown modifier '!'".
    105 exclam-2:
    106 # expect: make: Unfinished modifier after "=exclam}", expecting "!"
    107 	@echo ${!:L:!=exclam}
    108 
    109 mod-subst-delimiter-1:
    110 # expect: make: Missing delimiter for modifier ":S"
    111 	@echo 1: ${VAR:S
    112 mod-subst-delimiter-2:
    113 # expect: make: Unfinished modifier after "", expecting ","
    114 	@echo 2: ${VAR:S,
    115 mod-subst-delimiter-3:
    116 # expect: make: Unfinished modifier after "from", expecting ","
    117 	@echo 3: ${VAR:S,from
    118 mod-subst-delimiter-4:
    119 # expect: make: Unfinished modifier after "", expecting ","
    120 	@echo 4: ${VAR:S,from,
    121 mod-subst-delimiter-5:
    122 # expect: make: Unfinished modifier after "to", expecting ","
    123 	@echo 5: ${VAR:S,from,to
    124 mod-subst-delimiter-6:
    125 # expect: make: Unclosed expression, expecting "}" for modifier "S,from,to,"
    126 	@echo 6: ${VAR:S,from,to,
    127 mod-subst-delimiter-7:
    128 	@echo 7: ${VAR:S,from,to,}
    129 
    130 mod-regex-delimiter-1:
    131 # expect: make: Missing delimiter for modifier ":C"
    132 	@echo 1: ${VAR:C
    133 mod-regex-delimiter-2:
    134 # expect: make: Unfinished modifier after "", expecting ","
    135 	@echo 2: ${VAR:C,
    136 mod-regex-delimiter-3:
    137 # expect: make: Unfinished modifier after "from", expecting ","
    138 	@echo 3: ${VAR:C,from
    139 mod-regex-delimiter-4:
    140 # expect: make: Unfinished modifier after "", expecting ","
    141 	@echo 4: ${VAR:C,from,
    142 mod-regex-delimiter-5:
    143 # expect: make: Unfinished modifier after "to", expecting ","
    144 	@echo 5: ${VAR:C,from,to
    145 mod-regex-delimiter-6:
    146 # expect: make: Unclosed expression, expecting "}" for modifier "C,from,to,"
    147 	@echo 6: ${VAR:C,from,to,
    148 mod-regex-delimiter-7:
    149 	@echo 7: ${VAR:C,from,to,}
    150 
    151 mod-ts-parse-1:
    152 	@echo ${FIB:ts}
    153 mod-ts-parse-2:
    154 	@echo ${FIB:ts\65}	# octal 065 == U+0035 == '5'
    155 mod-ts-parse-3:
    156 # expect: make: Unknown modifier ":ts\65oct"
    157 	@echo ${FIB:ts\65oct}	# bad modifier
    158 mod-ts-parse-4:
    159 # expect: make: Unknown modifier ":ts\65oct"
    160 	@echo ${:U${FIB}:ts\65oct} # bad modifier, variable name is ""
    161 mod-ts-parse-5:
    162 # expect: make: Unknown modifier ":tsxy"
    163 	@echo ${FIB:tsxy}	# modifier too long
    164 
    165 mod-t-parse-1:
    166 # expect: make: Unknown modifier ":t"
    167 	@echo ${FIB:t
    168 mod-t-parse-2:
    169 # expect: make: Unknown modifier ":txy"
    170 	@echo ${FIB:txy}
    171 mod-t-parse-3:
    172 # expect: make: Unknown modifier ":t"
    173 	@echo ${FIB:t}
    174 mod-t-parse-4:
    175 # expect: make: Unknown modifier ":t"
    176 	@echo ${FIB:t:M*}
    177 
    178 mod-ifelse-parse-1:
    179 # expect: make: Unfinished modifier after "", expecting ":"
    180 	@echo ${FIB:?
    181 mod-ifelse-parse-2:
    182 # expect: make: Unfinished modifier after "then", expecting ":"
    183 	@echo ${FIB:?then
    184 mod-ifelse-parse-3:
    185 # expect: make: Unfinished modifier after "", expecting "}"
    186 	@echo ${FIB:?then:
    187 mod-ifelse-parse-4:
    188 # expect: make: Unfinished modifier after "else", expecting "}"
    189 	@echo ${FIB:?then:else
    190 mod-ifelse-parse-5:
    191 	@echo ${FIB:?then:else}
    192 
    193 mod-remember-parse:
    194 	@echo ${FIB:_}		# ok
    195 # expect: make: Unknown modifier ":__"
    196 	@echo ${FIB:__}		# modifier name too long
    197 
    198 mod-sysv-parse-1:
    199 # expect: make: Unknown modifier ":3"
    200 	@echo ${FIB:3
    201 mod-sysv-parse-2:
    202 # expect: make: Unfinished modifier after "", expecting "}"
    203 	@echo ${FIB:3=
    204 mod-sysv-parse-3:
    205 # expect: make: Unfinished modifier after "x3", expecting "}"
    206 	@echo ${FIB:3=x3
    207 mod-sysv-parse-4:
    208 	@echo ${FIB:3=x3}	# ok
    209