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Full Discussion: Delete new lines based on search criteria
Top Forums Shell Programming and Scripting Delete new lines based on search criteria Post 302387908 by jayarkay on Tuesday 19th of January 2010 12:05:57 AM
Old 01-19-2010
Delete new lines based on search criteria
Hi all!

A bit of background: I am trying to create a script that formats SQL statements. I have gotten so far as to add new lines based on certain match criteria like commas, keywords etc. In the process, I end up adding newlines where I don't want.

For example: substr(colName, 1, 10) becomes:
substr(colName,
1,
10) - I don't want this particular comma to be replaced with a newline.

With that in mind, my questions are:

1. Is there a way I can ignore the commas within braces - ( )
2. If not, how can I delete the newlines on lines starting with numbers, i.e. look for numbers at the beginning of a line and remove the newline before it.

In other words, if my input is:
substr(colName,
1,
10)

my output should be: substr(colName, 1, 10).

Any help is really appreciated! Thanks in advance.
Jay.

---------- Post updated 01-19-10 at 12:05 AM ---------- Previous update was 01-18-10 at 11:13 PM ----------

Another thing I forgot to mention: can I make the script intelligent enough to recognize negative numbers as well? Another example along the lines of the substr above is:

add_months(somedate, -6)
is becoming
add_months(somedate,
-6).

Don't want this to happen either.
 

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LEARN ABOUT DEBIAN

perl::critic::policy::builtinfunctions::prohibitlvaluesubstr

Perl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSuUser(Contributed Perl DocPerl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSubstr(3pm)

NAME

       Perl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSubstr - Use 4-argument "substr" instead of writing "substr($foo, 2, 6) = $bar".

AFFILIATION

       This Policy is part of the core Perl::Critic distribution.

DESCRIPTION

       Conway discourages the use of "substr()" as an lvalue, instead recommending that the 4-argument version of "substr()" be used instead.

	   substr($something, 1, 2) = $newvalue;     # not ok
	   substr($something, 1, 2, $newvalue);      # ok

       The four-argument form of "substr()" was introduced in Perl 5.005.  This policy does not report violations on code which explicitly
       specifies an earlier version of Perl (e.g. "use 5.004;").

CONFIGURATION

       This Policy is not configurable except for the standard options.

SEE ALSO

       "substr" in perlfunc (or "perldoc -f substr").

       "4th argument to substr" in perl5005delta

AUTHOR

       Graham TerMarsch <graham@howlingfrog.com>

COPYRIGHT

       Copyright (c) 2005-2011 Graham TerMarsch.  All rights reserved.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2012-06-07	 Perl::Critic::Policy::BuiltinFunctions::ProhibitLvalueSubstr(3pm)
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