There are multiple ways to do that, and the effort depends mostly on how robust you want it.
For example if the word is proceeded by 10 empty lines, should the code find the last word before the 10 empty lines as context?
Does isn't count as one word? or two? or something else?
A very simplistic search could use a regex, and only succeed if the word is not the first or last in a line:
while (<$FILE>) {
if (/(\S+)\s+going\s+(\S+)/) {
print "before: '$1'; after: '$2'\n";
}
}
for some very crude definition of "word".
For a more robust solution you could use App::Ack to give you some lines of context before and after the found word, and then extract the words you need.
If you need a more robust detection of word boundaries, read up on text segementation.
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.