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varmod-order.mk revision 1.14 
      1 # $NetBSD: varmod-order.mk,v 1.14 2024/07/05 18:59:33 rillig Exp $
      2 #
      3 # Tests for the :O variable modifier and its variants, which either sort the
      4 # words of the value or shuffle them.
      5 
      6 WORDS=		one two three four five six seven eight nine ten
      7 NUMBERS=	8 5 4 9 1 7 6 10 3 2	# in English alphabetical order
      8 
      9 .if ${WORDS:O} != "eight five four nine one seven six ten three two"
     10 .  error ${WORDS:O}
     11 .endif
     12 
     13 # Unknown modifier "OX"
     14 # FIXME: The error message "Undefined variable" is wrong.
     15 # expect+2: Undefined variable "${WORDS:OX"
     16 # expect+1: while evaluating variable "WORDS" with value "one two three four five six seven eight nine ten": Bad modifier ":OX"
     17 _:=	${WORDS:OX}
     18 
     19 # Unknown modifier "OxXX"
     20 # FIXME: The error message "Undefined variable" is wrong.
     21 # expect+2: Undefined variable "${WORDS:Ox"
     22 # expect+1: while evaluating variable "WORDS" with value "one two three four five six seven eight nine ten": Bad modifier ":OxXX"
     23 _:=	${WORDS:OxXX}
     24 
     25 # Missing closing brace, to cover the error handling code.
     26 # expect+1: while evaluating variable "WORDS" with value "eight five four nine one seven six ten three two": Unclosed expression, expecting '}' for modifier "O"
     27 _:=	${WORDS:O
     28 # expect+1: while evaluating variable "NUMBERS" with value "1 2 3 4 5 6 7 8 9 10": Unclosed expression, expecting '}' for modifier "On"
     29 _:=	${NUMBERS:On
     30 # expect+1: while evaluating variable "NUMBERS" with value "10 9 8 7 6 5 4 3 2 1": Unclosed expression, expecting '}' for modifier "Onr"
     31 _:=	${NUMBERS:Onr
     32 
     33 # Shuffling numerically doesn't make sense, so don't allow 'x' and 'n' to be
     34 # combined.
     35 #
     36 # expect+2: while evaluating variable "NUMBERS" with value "8 5 4 9 1 7 6 10 3 2": Bad modifier ":Oxn"
     37 # expect+1: Malformed conditional (${NUMBERS:Oxn})
     38 .if ${NUMBERS:Oxn}
     39 .  error
     40 .else
     41 .  error
     42 .endif
     43 
     44 # Extra characters after ':On' are detected and diagnosed.
     45 #
     46 # expect+2: while evaluating variable "NUMBERS" with value "8 5 4 9 1 7 6 10 3 2": Bad modifier ":On_typo"
     47 # expect+1: Malformed conditional (${NUMBERS:On_typo})
     48 .if ${NUMBERS:On_typo}
     49 .  error
     50 .else
     51 .  error
     52 .endif
     53 
     54 # Extra characters after ':Onr' are detected and diagnosed.
     55 #
     56 # expect+2: while evaluating variable "NUMBERS" with value "8 5 4 9 1 7 6 10 3 2": Bad modifier ":Onr_typo"
     57 # expect+1: Malformed conditional (${NUMBERS:Onr_typo})
     58 .if ${NUMBERS:Onr_typo}
     59 .  error
     60 .else
     61 .  error
     62 .endif
     63 
     64 # Extra characters after ':Orn' are detected and diagnosed.
     65 #
     66 # expect+2: while evaluating variable "NUMBERS" with value "8 5 4 9 1 7 6 10 3 2": Bad modifier ":Orn_typo"
     67 # expect+1: Malformed conditional (${NUMBERS:Orn_typo})
     68 .if ${NUMBERS:Orn_typo}
     69 .  error
     70 .else
     71 .  error
     72 .endif
     73 
     74 # Repeating the 'n' is not supported.  In the typical use cases, the sorting
     75 # criteria are fixed, not computed, therefore allowing this redundancy does
     76 # not make sense.
     77 #
     78 # expect+2: while evaluating variable "NUMBERS" with value "8 5 4 9 1 7 6 10 3 2": Bad modifier ":Onn"
     79 # expect+1: Malformed conditional (${NUMBERS:Onn})
     80 .if ${NUMBERS:Onn}
     81 .  error
     82 .else
     83 .  error
     84 .endif
     85 
     86 # Repeating the 'r' is not supported as well, for the same reasons as above.
     87 #
     88 # expect+2: while evaluating variable "NUMBERS" with value "8 5 4 9 1 7 6 10 3 2": Bad modifier ":Onrr"
     89 # expect+1: Malformed conditional (${NUMBERS:Onrr})
     90 .if ${NUMBERS:Onrr}
     91 .  error
     92 .else
     93 .  error
     94 .endif
     95 
     96 # Repeating the 'r' is not supported as well, for the same reasons as above.
     97 #
     98 # expect+2: while evaluating variable "NUMBERS" with value "8 5 4 9 1 7 6 10 3 2": Bad modifier ":Orrn"
     99 # expect+1: Malformed conditional (${NUMBERS:Orrn})
    100 .if ${NUMBERS:Orrn}
    101 .  error
    102 .else
    103 .  error
    104 .endif
    105 
    106 
    107 # If a modifier that starts with ':O' is not one of the known sort or shuffle
    108 # forms, it is a parse error.  Several other modifiers such as ':H' or ':u'
    109 # fall back to the SysV modifier, for example, ':H=new' is not the standard
    110 # ':H' modifier but instead replaces a trailing 'H' with 'new' in each word.
    111 # There is no such fallback for the ':O' modifiers.
    112 SWITCH=	On
    113 # expect+2: while evaluating variable "SWITCH" with value "On": Bad modifier ":On=Off"
    114 # expect+1: Malformed conditional (${SWITCH:On=Off} != "Off")
    115 .if ${SWITCH:On=Off} != "Off"
    116 .  error
    117 .else
    118 .  error
    119 .endif
    120 
    121 all:
    122