107 lines
2.6 KiB
Makefile
107 lines
2.6 KiB
Makefile
# $NetBSD: varmod-order.mk,v 1.10 2023/02/27 08:29:36 rillig Exp $
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#
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# Tests for the :O variable modifier and its variants, which either sort the
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# words of the value or shuffle them.
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WORDS= one two three four five six seven eight nine ten
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NUMBERS= 8 5 4 9 1 7 6 10 3 2 # in English alphabetical order
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.if ${WORDS:O} != "eight five four nine one seven six ten three two"
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. error ${WORDS:O}
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.endif
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# Unknown modifier "OX"
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_:= ${WORDS:OX}
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# Unknown modifier "OxXX"
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_:= ${WORDS:OxXX}
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# Missing closing brace, to cover the error handling code.
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_:= ${WORDS:O
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_:= ${NUMBERS:On
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_:= ${NUMBERS:Onr
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# Shuffling numerically doesn't make sense, so don't allow 'x' and 'n' to be
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# combined.
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#
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# expect: make: Bad modifier ":Oxn" for variable "NUMBERS"
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# expect+1: Malformed conditional (${NUMBERS:Oxn})
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.if ${NUMBERS:Oxn}
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. error
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.else
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. error
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.endif
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# Extra characters after ':On' are detected and diagnosed.
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# TODO: Add line number information to the "Bad modifier" diagnostic.
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#
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# expect: make: Bad modifier ":On_typo" for variable "NUMBERS"
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.if ${NUMBERS:On_typo}
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. error
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.else
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. error
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.endif
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# Extra characters after ':Onr' are detected and diagnosed.
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#
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# expect: make: Bad modifier ":Onr_typo" for variable "NUMBERS"
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.if ${NUMBERS:Onr_typo}
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. error
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.else
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. error
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.endif
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# Extra characters after ':Orn' are detected and diagnosed.
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#
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# expect: make: Bad modifier ":Orn_typo" for variable "NUMBERS"
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.if ${NUMBERS:Orn_typo}
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. error
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.else
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. error
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.endif
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# Repeating the 'n' is not supported. In the typical use cases, the sorting
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# criteria are fixed, not computed, therefore allowing this redundancy does
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# not make sense.
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#
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# expect: make: Bad modifier ":Onn" for variable "NUMBERS"
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.if ${NUMBERS:Onn}
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. error
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.else
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. error
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.endif
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# Repeating the 'r' is not supported as well, for the same reasons as above.
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#
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# expect: make: Bad modifier ":Onrr" for variable "NUMBERS"
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.if ${NUMBERS:Onrr}
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. error
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.else
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. error
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.endif
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# Repeating the 'r' is not supported as well, for the same reasons as above.
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#
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# expect: make: Bad modifier ":Orrn" for variable "NUMBERS"
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.if ${NUMBERS:Orrn}
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. error
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.else
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. error
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.endif
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# If a modifier that starts with ':O' is not one of the known sort or shuffle
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# forms, it is a parse error. Several other modifiers such as ':H' or ':u'
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# fall back to the SysV modifier, for example, ':H=new' is not the standard
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# ':H' modifier but instead replaces a trailing 'H' with 'new' in each word.
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# There is no such fallback for the ':O' modifiers.
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SWITCH= On
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# expect: make: Bad modifier ":On=Off" for variable "SWITCH"
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.if ${SWITCH:On=Off} != "Off"
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. error
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.else
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. error
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.endif
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all:
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