comment on

Hi perl monks...

Please suggest me how to search and substitute for word with special characters without using back slashes..

my @nets = "in1_[0], in1_[1]";
[download]

since variable nets contains auto generated words, sometimes it may contain simple words without any special variables as follows

my @nets = "a_c, b_c, N_05";
[download]

lets say my file has in1_[0] word at many lines of codes and i wrote a perl script to search for in1_[0] i.e. $nets[0] word and replace it with in1_1 word i.e. $nets1...

while (<DATA>){
print "substitution is done" if (s/$nets[0]/$nets[1]/);
}
[download]

But, while executing the script i understood that special characters [] are present in variable nets, hence this substitution regex statement is not working... i read that i have to use back slashes for those characters... since nets file will be auto generated and sometimes only it may contain array values, how can i generalize this regex script accordingly...

-DATA-
in1_c[0]
in1_c[1]
in1_c[0]
in1_c[1]
a_c
in1_c[0]
b_c
in1_c[1]
in1_c[0]
in1_c[1]
[download]

In reply to How to write regex for special characters without using back slashes?? by sumathigokul

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		`&`
	<		`<`
	>		`>`
	[		`[`
	]		`]`

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.


"be consistent"
	PerlMonks