Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

Why is the following snippet producing a 'syntax error'?

perl -Mstrict -wle"my %x = map{ 'A' => $_ } 1 .. 10" syntax error at -e line 1, near "} 1" Execution of -e aborted due to compilation errors.

Note: I know it may not be logical to assign one key, 10 different values one after the other, but a syntax error?

Note also that both of these are legal:

perl -Mstrict -wle"my %x = map{ $_ => $_ } 1 .. 10" perl -Mstrict -wle"my %x = map{ 'A' . $_ => $_ } 1 .. 10"

But this also isn't "legal syntax" (regardless of whether you use qq// or ""), even though it is logical.

P:\test>perl -Mstrict -wle"my %x = map{ qq[A_$_] => $_ } 1 .. 10" syntax error at -e line 1, near "} 1" Execution of -e aborted due to compilation errors.

So this isn't just a case of over-zealous code policing?

It woudn't be quite so bad if it didn't point you at the wrong part of the statement as the source of the error.

Perl 5.8.4 (AS810).


Examine what is said, not who speaks.
"But you should never overestimate the ingenuity of the sceptics to come up with a counter-argument." -Myles Allen
"Think for yourself!" - Abigail        "Time is a poor substitute for thought"--theorbtwo         "Efficiency is intelligent laziness." -David Dunham
"Memory, processor, disk in that order on the hardware side. Algorithm, algorithm, algorithm on the code side." - tachyon

In reply to Mysterious "syntax error" by BrowserUk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • 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 or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others rifling through the Monastery: (5)
As of 2022-05-29 12:13 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Do you prefer to work remotely?



    Results (101 votes). Check out past polls.

    Notices?