Difference between revisions of "Regular expressions"

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:<pre> \b[[:upper:]]{2,}\b</pre>
 
:<pre> \b[[:upper:]]{2,}\b</pre>
  
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find capital letter at the end of a line, insert period before newline
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<pre>(\s[[:upper:]])\n
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\1\.^p
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</pre>
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find period, capital letter at the end of a line
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:<pre> (\.[[:upper:]])\n </pre>
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<pre>
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\s\(([0-9]{4})
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\s[[:upper:]]+\r
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\L\1\n -- lowercases everything
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\L2\1\n -- inserts 2, space, lowercase of the string
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\L$2\1\n -- does not insert 2, lowercases string
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\U\L\1\n -- lowercases everything
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</pre>
 
== Links ==
 
== Links ==
  
 
* [https://www.tutorialspoint.com/perl/perl_regular_expressions.htm Perl Regular Expressions]
 
* [https://www.tutorialspoint.com/perl/perl_regular_expressions.htm Perl Regular Expressions]

Latest revision as of 07:13, 24 January 2019

Find capital letter, period, space, capital letter, period.

([A-Z]\.)[ ]([A-Z]\.)

Kill the space by using this for the replacement field:

$1$2

Perl: find uppercase words.

 \b[[:upper:]]{2,}\b

find capital letter at the end of a line, insert period before newline

(\s[[:upper:]])\n

\1\.^p

find period, capital letter at the end of a line

 (\.[[:upper:]])\n 
\s\(([0-9]{4})

\s[[:upper:]]+\r

\L\1\n -- lowercases everything

\L2\1\n -- inserts 2, space, lowercase of the string

\L$2\1\n -- does not insert 2, lowercases string

\U\L\1\n -- lowercases everything


Links