sed translate link arguments into make dependency

The following test script shows what I'm attempting to do. It will end
up in a make file translating a make macro for library list into a
macro for target dependency.

pre_fix=lib
suffix=.so
echo Starting with:
echo -L/usr/local/lib -ltom -ldick -lharry -L/usr/lib -ljane -ldoe
echo -L/usr/local/lib -ltom -ldick -lharry -L/usr/lib -ljane -ldoe |
sed -r \
-e 's|(-l)([^ ]+)|'$pre_fix'\2'$suffix'|g' \
-e ':a;s|(([ ]*-L)([^ ]+))+([ ]+)+('$pre_fix'[^ ]+)+|\1 \3/\5|g;ta'

# Use lines below if not GNU sed and -r option
#-e 's|\(-l\)\([^ ]\+\)|'$pre_fix'\2'$suffix'|g' \
#-e 's|\(\([ ]*-L\)\([^ ]\+\)\)\+\([ ]\+\)\+\('$pre_fix'[^ ]\+\)\+|
\3/\5|g'

Current output is:
sh junk.txt
Starting with:
-L/usr/local/lib -ltom -ldick -lharry -L/usr/lib -ljane -ldoe
-L/usr/local/lib /usr/local/lib/libtom.so libdick.so libharry.so -L/
usr/lib /usr/lib/libjane.so libdoe.so

should look like this when done:
/usr/local/lib/libtom.so /usr/local/lib/libdick.so /usr/local/lib/
libharry.so /usr/lib/libjane.so /usr/lib/libdoe.so

In article <070ce6c5-620e-40bb-b1d8-85e07eb9bf69@v16g2000prc.googlegroups.com>,
dhighley <dhighley@highley-recommended.com> wrote:
>The following test script shows what I'm attempting to do. It will end
>up in a make file translating a make macro for library list into a
>macro for target dependency.
>
>pre_fix=lib
>suffix=.so
>echo Starting with:
>echo -L/usr/local/lib -ltom -ldick -lharry -L/usr/lib -ljane -ldoe
>echo -L/usr/local/lib -ltom -ldick -lharry -L/usr/lib -ljane -ldoe |
>sed -r \
>-e 's|(-l)([^ ]+)|'$pre_fix'\2'$suffix'|g' \
>-e ':a;s|(([ ]*-L)([^ ]+))+([ ]+)+('$pre_fix'[^ ]+)+|\1 \3/\5|g;ta'
>
># Use lines below if not GNU sed and -r option
>#-e 's|\(-l\)\([^ ]\+\)|'$pre_fix'\2'$suffix'|g' \
>#-e 's|\(\([ ]*-L\)\([^ ]\+\)\)\+\([ ]\+\)\+\('$pre_fix'[^ ]\+\)\+|
>\3/\5|g'

What part of comp.lang.AWK don't you understand?

On Aug 15, 12:17*am, gaze...@shell.xmission.com (Kenny McCormack)
wrote:
> In article <070ce6c5-620e-40bb-b1d8-85e07eb9b...@v16g2000prc.googlegroups..com>,
>
>
>
> dhighley *<dhigh...@highley-recommended.com> wrote:
> >The following test script shows what I'm attempting to do. It will end
> >up in a make file translating a make macro for library list into a
> >macro for target dependency.
>
> >pre_fix=lib
> >suffix=.so
> >echo Starting with:
> >echo -L/usr/local/lib -ltom -ldick -lharry -L/usr/lib -ljane -ldoe
> >echo -L/usr/local/lib -ltom -ldick -lharry -L/usr/lib -ljane -ldoe |
> >sed -r \
> >-e 's|(-l)([^ ]+)|'$pre_fix'\2'$suffix'|g' \
> >-e ':a;s|(([ ]*-L)([^ ]+))+([ ]+)+('$pre_fix'[^ ]+)+|\1 \3/\5|g;ta'
>
> ># Use lines below if not GNU sed and -r option
> >#-e 's|\(-l\)\([^ ]\+\)|'$pre_fix'\2'$suffix'|g' \
> >#-e 's|\(\([ ]*-L\)\([^ ]\+\)\)\+\([ ]\+\)\+\('$pre_fix'[^ ]\+\)\+|
> >\3/\5|g'
>
> What part of comp.lang.AWK don't you understand?

Not meaning to stir the pot I did a search before to see where sed
type questions were being asked. There is no sed group and I had
posted on comp.editors before. Many books do combine sed and awk. But
programming both I do know that they are not that close together as
languages.

On 2008-08-15, dhighley <dhighley@highley-recommended.com> wrote:
> The following test script shows what I'm attempting to do. It will end
> up in a make file translating a make macro for library list into a
> macro for target dependency.
>
> pre_fix=lib
> suffix=.so
> echo Starting with:
> echo -L/usr/local/lib -ltom -ldick -lharry -L/usr/lib -ljane -ldoe
> echo -L/usr/local/lib -ltom -ldick -lharry -L/usr/lib -ljane -ldoe |
> sed -r \
> -e 's|(-l)([^ ]+)|'$pre_fix'\2'$suffix'|g' \
> -e ':a;s|(([ ]*-L)([^ ]+))+([ ]+)+('$pre_fix'[^ ]+)+|\1 \3/\5|g;ta'
>
> # Use lines below if not GNU sed and -r option
> #-e 's|\(-l\)\([^ ]\+\)|'$pre_fix'\2'$suffix'|g' \
> #-e 's|\(\([ ]*-L\)\([^ ]\+\)\)\+\([ ]\+\)\+\('$pre_fix'[^ ]\+\)\+|
> \3/\5|g'
>
> Current output is:
> sh junk.txt
> Starting with:
> -L/usr/local/lib -ltom -ldick -lharry -L/usr/lib -ljane -ldoe
> -L/usr/local/lib /usr/local/lib/libtom.so libdick.so libharry.so -L/
> usr/lib /usr/lib/libjane.so libdoe.so
>
> should look like this when done:
> /usr/local/lib/libtom.so /usr/local/lib/libdick.so /usr/local/lib/
> libharry.so /usr/lib/libjane.so /usr/lib/libdoe.so

Use awk instead:

echo -LAndTheRestOfTheLine | tr ' ' \\n | awk '....(see below)...'

And the awk command:

awk '$0 ~ /^-L/ {path=$0}
$0 ~ /^-l/ {print path "/lib" lib ".so"}'

Use an awk function (substr perhaps) in the path=$0 to eliminate the -L

You can omit the "tr" command: awk -F' '

Hope it helps you.

Best regars,
Claudio.

On Aug 16, 12:07*pm, Claudio <clau...@example.org> wrote:
> On 2008-08-15, dhighley <dhigh...@highley-recommended.com> wrote:
>
>
>
> > The following test script shows what I'm attempting to do. It will end
> > up in a make file translating a make macro for library list into a
> > macro for target dependency.
>
> > pre_fix=lib
> > suffix=.so
> > echo Starting with:
> > echo -L/usr/local/lib -ltom -ldick -lharry -L/usr/lib -ljane -ldoe
> > echo -L/usr/local/lib -ltom -ldick -lharry -L/usr/lib -ljane -ldoe |
> > sed -r \
> > -e 's|(-l)([^ ]+)|'$pre_fix'\2'$suffix'|g' \
> > -e ':a;s|(([ ]*-L)([^ ]+))+([ ]+)+('$pre_fix'[^ ]+)+|\1 \3/\5|g;ta'
>
> > # Use lines below if not GNU sed and -r option
> > #-e 's|\(-l\)\([^ ]\+\)|'$pre_fix'\2'$suffix'|g' \
> > #-e 's|\(\([ ]*-L\)\([^ ]\+\)\)\+\([ ]\+\)\+\('$pre_fix'[^ ]\+\)\+|
> > \3/\5|g'
>
> > Current output is:
> > sh junk.txt
> > Starting with:
> > -L/usr/local/lib -ltom -ldick -lharry -L/usr/lib -ljane -ldoe
> > -L/usr/local/lib /usr/local/lib/libtom.so libdick.so libharry.so -L/
> > usr/lib /usr/lib/libjane.so libdoe.so
>
> > should look like this when done:
> > /usr/local/lib/libtom.so /usr/local/lib/libdick.so /usr/local/lib/
> > libharry.so /usr/lib/libjane.so /usr/lib/libdoe.so
>
> Use awk instead:
>
> echo -LAndTheRestOfTheLine | tr ' ' \\n | awk '....(see below)...'
>
> And the awk command:
>
> awk '$0 ~ /^-L/ {path=$0}
> $0 ~ /^-l/ {print path "/lib" lib ".so"}'
>
> Use an awk function (substr perhaps) in the path=$0 to eliminate the -L
>
> You can omit the "tr" command: awk -F' '
>
> Hope it helps you.
>
> Best regars,
> Claudio.

Not quite. Below is a working example:

#!/bin/sh
LIBS='-L/usr/local/lib -ltom -ldick -lharry -L/usr/lib -ljane -ldoe'
echo Starting with:
echo $LIBS
echo
echo what did we get?:

echo $LIBS |
awk -F' ' '
BEGIN{pre_fix="lib"; suffix=".so";out=""}
{
for(i=1; i<=NF; i++)
{
if($i ~ /^-L/) {path=substr($i,3)}
if($i ~ /^-l/) {out=out path "/" pre_fix substr($i,3) suffix "
"}
}
}
END{print out}'