Deparse tries to reproduce code, while Concise shows what's actually there.
A more accurate demonstration:
$ perl -MO=Concise,-exec -e'print if $a'
1 <0> enter
2 <;> nextstate(main 1 -e:1) v:{
3 <#> gvsv[*a] s
4 <|> and(other->5) vK/1
5 <0> pushmark s
6 <#> gvsv[*_] s
7 <@> print vK
8 <@> leave[1 ref] vKP/REFC
-e syntax OK
$ perl -MO=Concise,-exec -e'$a and print'
1 <0> enter
2 <;> nextstate(main 1 -e:1) v:{
3 <#> gvsv[*a] s
4 <|> and(other->5) vK/1
5 <0> pushmark s
6 <#> gvsv[*_] s
7 <@> print vK
8 <@> leave[1 ref] vKP/REFC
-e syntax OK
But the question is about the if statement.
$ perl -MO=Concise,-exec -e'if ($a) { print }'
1 <0> enter
2 <;> nextstate(main 3 -e:1) v:{
3 <#> gvsv[*a] s
4 <|> and(other->5) vK/1
5 <0> pushmark s
6 <#> gvsv[*_] s
7 <@> print vK
8 <@> leave[1 ref] vKP/REFC
-e syntax OK
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|