Beefy Boxes and Bandwidth Generously Provided by pair Networks
laziness, impatience, and hubris
 
PerlMonks  

Re: Range operator weirdness?

by dragonchild (Archbishop)
on Feb 28, 2002 at 15:48 UTC ( #148250=note: print w/replies, xml ) Need Help??


in reply to Range operator weirdness?

Now I'm confused! (Not that this is all that surprising ...)

I thought that auto-incremement on characters would following the ASCII table. But, ord("0") is 48 and ord("1") is 49. ord("9") is 57 and chr(58) is ':'. Could someone explain what I'm not seeing?

------
We are the carpenters and bricklayers of the Information Age.

Don't go borrowing trouble. For programmers, this means Worry only about what you need to implement.

Replies are listed 'Best First'.
Re: Re: Range operator weirdness?
by Sweeper (Pilgrim) on Feb 28, 2002 at 21:03 UTC
    I thought that auto-incremement on characters would following the ASCII table. But, ord("0") is 48 and ord("1") is 49. ord("9") is 57 and chr(58) is ':'. Could someone explain what I'm not seeing? The magical auto-increment does not use the whole ASCII table. It is limited to the 10 numbers, the 26 upper-case letters, and the 26 lower-case letters.

    Furthermore, as said in the Camel book (page 91), the string must match /[a-zA-Z]*[0-9]*$/. That is, you can auto-increment file or file01, but not file01a.

    Anyhow, you cannot get a : as the result of auto-increment, magical or not.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://148250]
help
Chatterbox?
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others taking refuge in the Monastery: (5)
As of 2017-02-21 05:53 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Before electricity was invented, what was the Electric Eel called?






    Results (307 votes). Check out past polls.