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Pattern replacing

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# 8  
Old 07-06-2015
With a standards conforming sed utility you could try:
Code:
sed -e 's/^100\([.]0*\)\{0,1\}%/"&"/g' \
    -e 's/ \(100\([.]0*\)\{0,1\}%\)/ "\1"/g' \
    -e 's/^9[0-9]\([.][0-9]*\)\{0,1\}%/"&"/g' \
    -e 's/ \(9[0-9]\([.][0-9]*\)\{0,1\}%\)/ "\1"/g' file

On a system using a GNU sed utility, you'd have to change that to:
Code:
sed --posix -e 's/^100\([.]0*\)\{0,1\}%/"&"/g' \
    -e 's/ \(100\([.]0*\)\{0,1\}%\)/ "\1"/g' \
    -e 's/^9[0-9]\([.][0-9]*\)\{0,1\}%/"&"/g' \
    -e 's/ \(9[0-9]\([.][0-9]*\)\{0,1\}%\)/ "\1"/g' file

You can flatten these to one-liners by removing the backslashes and <newline>s, but I find them easier to read this way.

If the file named file contains:
Code:
100% 100%
100.00000000% 100.00%
100.0000000000000001% 100.1%
101% 123%
10% 10%
10.0% 10.0%
89.9999999% 89.9%
90% 90%
90.123% 90.987%
99.94% 99.94%
90% 90% 8.98% 92% 193% 96.96%
9.98% 9.98%

it produces the output:
Code:
"100%" "100%"
"100.00000000%" "100.00%"
100.0000000000000001% 100.1%
101% 123%
10% 10%
10.0% 10.0%
89.9999999% 89.9%
"90%" "90%"
"90.123%" "90.987%"
"99.94%" "99.94%"
"90%" "90%" 8.98% "92%" 193% "96.96%"
9.98% 9.98%

This User Gave Thanks to Don Cragun For This Post:
ctrld
# 9  
Old 07-06-2015
Quote:
Originally Posted by ctrld
Aia, your one liner is cool, it works for now. [...] How do I modify this perl statement to take care of that?
Try and see if does what you want.
Code:
perl -pe 's/(?:9\d(?<![0-8]\d)\.\d+|(?<!\S)9\d|(?<!\S)100(\.0+)?)%/"$&"/g' file

Last edited by Aia; 07-06-2015 at 03:08 AM.. Reason: Added 100. support
This User Gave Thanks to Aia For This Post:
ctrld
# 10  
Old 07-06-2015
Quote:
Originally Posted by Aia
Try and see if does what you want.
Code:
perl -pe 's/(?:9\d(?<![0-8]\d)\.\d+|(?<!\S)9\d|100)%/"$&"/g' file

That doesn't quote either of the following in my sample input file:
Code:
100.00000000% 100.00%

which both seem to meet the stated requirements.
This User Gave Thanks to Don Cragun For This Post:
ctrld
# 11  
Old 07-16-2015
Thanks a ton for the suggestions. Its a privilege to interact with experts like you. Thanks Aia and Don.
# 12  
Old 07-16-2015
This awk should do it.
Code:
awk ' { gsub("[0-9]%","&\"",$0); gsub("^[0-9]","\"&",$0); gsub(" [0-9]","\"&",$0); gsub("\" ",FS"\"",$0) }1'

Anything wrong with this ?
Last edited by Peasant; 07-16-2015 at 07:47 AM.. Reason: Misread - Sorry didn't see additional conditions related (>90 etc.)
# 13  
Old 07-16-2015
Quote:
Originally Posted by Peasant
This awk should do it.
Code:
awk ' { gsub("[0-9]%","&\"",$0); gsub("^[0-9]","\"&",$0); gsub(" [0-9]","\"&",$0); gsub("\" ",FS"\"",$0) }1'

Anything wrong with this ?
The request was to quote percentages between 90% and 100% inclusive when the percentage appears at the start of a line or is preceded by a space character. So, with input like:
Code:
Get a loan of 1000 dollars at 5% interest.

no change should be made. But your suggestion changes it to:
Code:
Get a loan of "1000 dollars at "5% "interest.
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