Re: make, list and M pattern
On Wed, 08 Apr 2009 00:09:43 +0300 Giorgos Keramidas wrote:
> On Tue, 07 Apr 2009 23:54:13 +0400, Boris Samorodov wrote:
> >
> > I need to create a list with some valid values and check an input
> > value. Should this makefile work?
> >
> > -
> > LIST=f8 f9
> >
> > all:
> > @echo USE_LINUX=${USE_LINUX}, LIST=${LIST}
> > .if empty(LIST:M${USE_LINUX})
> > @echo The value is invalid
> > .else
> > @echo The value is valid
> > .endif
> > -
> > % make USE_LINUX=f8
> > USE_LINUX=f8, LIST=f8 f9
> > The value is invalid
> > -
> Hi Boris! :)
Hi Giorgos, Mel and list!
> This is not exactly what you asked for, but you can probably loop
> instead of trying to match regular expressions:
> keram...@kobe:/tmp$ cat -n Makefile
>1 LIST= f8 f9
>2 USE_LINUX?= f9
>3
>4 LINUX_VERSION= ${USE_LINUX:C/[ ]*([^ ]*)[ ]*/\1/}
>5
>6 .if defined(USE_LINUX)
>7 .for item in ${LIST}
>8 .if ${USE_LINUX} == ${item}
>9 RESULT= ${item}
> 10 .endif
> 11 .endfor
> 12 .endif
> 13
> 14 all:
> 15 .if empty(RESULT)
> 16 @echo Version ${LINUX_VERSION} is not valid.
> 17 .else
> 18 @echo Valid version ${RESULT} selected.
> 19 .endif
> keram...@kobe:/tmp$ make
> Valid version f9 selected.
> keram...@kobe:/tmp$ make -e USE_LINUX=f10
> Version f10 is not valid.
> keram...@kobe:/tmp$
Hm, And what if I need to compare two lists and detect if they
have any common items?
VALID_LIST=f8 f9
INPUT_LIST=f6 f7 f8
Nested .for loops are not helpful since .if statement is not
useful here:
.for x in ${VALID_LIST}
. for y in ${INPUT_LIST}
. if $x == $y -- make error here
Thanks!
WBR
--
Boris Samorodov (bsam)
Research Engineer, http://www.ipt.ru Telephone & Internet SP
FreeBSD Committer, http://www.FreeBSD.org The Power To Serve
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Re: make, list and M pattern
On Wed, 8 Apr 2009 08:45:04 +0200 Mel Flynn wrote:
> On Tuesday 07 April 2009 21:54:13 Boris Samorodov wrote:
> > Hello List,
> >
> >
> > I need to create a list with some valid values and check an input
> > value. Should this makefile work?
> > -
> > LIST=f8 f9
> >
> > all:
> > @echo USE_LINUX=${USE_LINUX}, LIST=${LIST}
> > .if empty(LIST:M${USE_LINUX})
> > @echo The value is invalid
> > .else
> > @echo The value is valid
> > .endif
> > -
> > % make USE_LINUX=f8
> > USE_LINUX=f8, LIST=f8 f9
> > The value is invalid
> > -
Hi Mel!
> Doesn't work because the match is not on words of the list but on the full
> list and you're not using globs.
You are ringht, but not for the case. The case here seems to exist
because variables are not guaranteed to be expanded for M modifier.
I.e. even with globs the result will not be as expected.
> Aside from Giorgos' method, one might consider:
> LIST=f8 f9
> LINUX_VER=invalid
> .for _VERSION in ${LIST}
> .if (${USE_LINUX} == "${_VERSION}")
> LINUX_VER=${_VERSION}
> .endif
> .endfor
> all:
> .if !empty(LINUX_VER:Minvalid)
> @echo "Invalid linux version: ${USE_LINUX}"
> .else
> @echo "Using linux version ${LINUX_VER}"
> .endif
Works. Thanks!
WBR
--
Boris Samorodov (bsam)
Research Engineer, http://www.ipt.ru Telephone & Internet SP
FreeBSD Committer, http://www.FreeBSD.org The Power To Serve
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Re: make, list and M pattern
On Wed, 08 Apr 2009 00:09:43 +0300 Giorgos Keramidas wrote:
> On Tue, 07 Apr 2009 23:54:13 +0400, Boris Samorodov wrote:
> > Hello List,
> >
> > I need to create a list with some valid values and check an input
> > value. Should this makefile work?
> >
> > -
> > LIST=f8 f9
> >
> > all:
> > @echo USE_LINUX=${USE_LINUX}, LIST=${LIST}
> > .if empty(LIST:M${USE_LINUX})
> > @echo The value is invalid
> > .else
> > @echo The value is valid
> > .endif
> > -
> > % make USE_LINUX=f8
> > USE_LINUX=f8, LIST=f8 f9
> > The value is invalid
> > -
> Hi Boris! :)
Hi Giorgos! :)
> This is not exactly what you asked for, but you can probably loop
> instead of trying to match regular expressions:
> keram...@kobe:/tmp$ cat -n Makefile
>1 LIST= f8 f9
>2 USE_LINUX?= f9
>3
>4 LINUX_VERSION= ${USE_LINUX:C/[ ]*([^ ]*)[ ]*/\1/}
>5
>6 .if defined(USE_LINUX)
>7 .for item in ${LIST}
>8 .if ${USE_LINUX} == ${item}
>9 RESULT= ${item}
> 10 .endif
> 11 .endfor
> 12 .endif
> 13
> 14 all:
> 15 .if empty(RESULT)
> 16 @echo Version ${LINUX_VERSION} is not valid.
> 17 .else
> 18 @echo Valid version ${RESULT} selected.
> 19 .endif
> keram...@kobe:/tmp$ make
> Valid version f9 selected.
> keram...@kobe:/tmp$ make -e USE_LINUX=f10
> Version f10 is not valid.
> keram...@kobe:/tmp$
Thanks, that would fit enough.
WBR
--
Boris Samorodov (bsam)
Research Engineer, http://www.ipt.ru Telephone & Internet SP
FreeBSD Committer, http://www.FreeBSD.org The Power To Serve
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Re: make, list and M pattern
On Tuesday 07 April 2009 21:54:13 Boris Samorodov wrote:
> Hello List,
>
>
> I need to create a list with some valid values and check an input
> value. Should this makefile work?
> -
> LIST=f8 f9
>
> all:
> @echo USE_LINUX=${USE_LINUX}, LIST=${LIST}
> .if empty(LIST:M${USE_LINUX})
> @echo The value is invalid
> .else
> @echo The value is valid
> .endif
> -
> % make USE_LINUX=f8
> USE_LINUX=f8, LIST=f8 f9
> The value is invalid
> -
Doesn't work because the match is not on words of the list but on the full
list and you're not using globs.
Aside from Giorgos' method, one might consider:
LIST=f8 f9
LINUX_VER=invalid
.for _VERSION in ${LIST}
.if (${USE_LINUX} == "${_VERSION}")
LINUX_VER=${_VERSION}
.endif
.endfor
all:
.if !empty(LINUX_VER:Minvalid)
@echo "Invalid linux version: ${USE_LINUX}"
.else
@echo "Using linux version ${LINUX_VER}"
.endif
--
Mel
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Re: make, list and M pattern
On Tue, 07 Apr 2009 23:54:13 +0400, Boris Samorodov wrote:
> Hello List,
>
> I need to create a list with some valid values and check an input
> value. Should this makefile work?
>
> -
> LIST=f8 f9
>
> all:
> @echo USE_LINUX=${USE_LINUX}, LIST=${LIST}
> .if empty(LIST:M${USE_LINUX})
> @echo The value is invalid
> .else
> @echo The value is valid
> .endif
> -
> % make USE_LINUX=f8
> USE_LINUX=f8, LIST=f8 f9
> The value is invalid
> -
Hi Boris! :)
This is not exactly what you asked for, but you can probably loop
instead of trying to match regular expressions:
keram...@kobe:/tmp$ cat -n Makefile
1 LIST= f8 f9
2 USE_LINUX?= f9
3
4 LINUX_VERSION= ${USE_LINUX:C/[ ]*([^ ]*)[ ]*/\1/}
5
6 .if defined(USE_LINUX)
7 .for item in ${LIST}
8 .if ${USE_LINUX} == ${item}
9 RESULT= ${item}
10 .endif
11 .endfor
12 .endif
13
14 all:
15 .if empty(RESULT)
16 @echo Version ${LINUX_VERSION} is not valid.
17 .else
18 @echo Valid version ${RESULT} selected.
19 .endif
keram...@kobe:/tmp$ make
Valid version f9 selected.
keram...@kobe:/tmp$ make -e USE_LINUX=f10
Version f10 is not valid.
keram...@kobe:/tmp$
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