Integer method?

ruby-talk
1

I found following exp from html_parser.rb

n = Integer(name)

here, name is string

Is the Integer used as class method?
it looks like converting from str to int.
Where can I get this info?
I checked "the ruby way’ and "programming ruby’
but i couldn’t find any info about it.

thanks.

s moon

2

In fact it’s Kernel.Integer(name) cf
http://www.rubycentral.com/book/ref_m_kernel.html#Kernel.Integer
Integer is a “method” of the Kernel module.

s moon wrote:

···

I found following exp from html_parser.rb

n = Integer(name)

here, name is string

Is the Integer used as class method?
it looks like converting from str to int.
Where can I get this info?
I checked "the ruby way’ and "programming ruby’
but i couldn’t find any info about it.

thanks.

s moon

3

“s moon” internetletter@yahoo.com wrote in message

[snip]

Is the Integer used as class method?
it looks like converting from str to int.
Where can I get this info?

C:>ri Integer
This is a test ‘ri’. Please report errors and omissions
on http://www.rubygarden.org/ruby?RIOnePointEight

··· 
 class: Integer  < Numeric

 Subclassed by: Bignum, Fixnum

 Integer is the basis for the two concrete classes that hold whole
 numbers, Bignum and Fixnum.

 ceil, chr, downto, floor, integer?, next, round, succ, times, to_i,
 to_int, truncate, upto

C:>

4

That’s not the one he wants :slight_smile:

batsman@tux-chan:~/src/rdocsite/site/ruby$ ri Kernel.Integer
-------------------------------------------------------- Kernel::Integer
Integer( arg ) → anInteger

···

On Tue, Jul 08, 2003 at 09:01:26AM +0900, Shashank Date wrote:

“s moon” internetletter@yahoo.com wrote in message

[snip]

Is the Integer used as class method?
it looks like converting from str to int.
Where can I get this info?

C:>ri Integer

 Converts arg to a Fixnum or Bignum. Numeric types are converted
 directly (with floating point numbers being truncated). If arg is a
 String, leading radix indicators (0, 0b, and 0x) are honored. This
 behavior is different from that of String#to_i.
    Integer(123.999)    #=> 123
    Integer("0x1a")     #=> 26
    Integer(Time.new)   #=> 983770240

–
_ _

__ __ | | ___ _ __ ___ __ _ _ __
'_ \ / | __/ __| '_ _ \ / ` | ’ \
) | (| | |__ \ | | | | | (| | | | |
.__/ _,|_|/| || ||_,|| |_|
Running Debian GNU/Linux Sid (unstable)
batsman dot geo at yahoo dot com

martin@bdsi.com (no longer valid - where are you now, Martin?)
– from /usr/src/linux/drivers/cdrom/mcd.c

5

Mauricio Fernández wrote:

batsman@tux-chan:~/src/rdocsite/site/ruby$ ri Kernel.Integer
-------------------------------------------------------- Kernel::Integer
Integer( arg ) → anInteger

 Converts arg to a Fixnum or Bignum. Numeric types are converted
 directly (with floating point numbers being truncated). If arg is a
 String, leading radix indicators (0, 0b, and 0x) are honored. This
 behavior is different from that of String#to_i.
    Integer(123.999)    #=> 123
    Integer("0x1a")     #=> 26
    Integer(Time.new)   #=> 983770240

But don’t forget that Integer( nil ) #=> 0

···

–
Andrey Kulinich
IT Group
Software developer
Phone/Fax +380 (372) 58-43-10
e-mail: Andrey.Kulinich@itgrp.net
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