how do i do this:
str = “you muppet”
if “y” in str:
print “its in there”
whats the best source for documentation on Ruby? i googled and checked
the homepage of ruby but there isnt really a clear one or im jus
duuumb.
globalrev wrote:
how do i do this:
str = “you muppet”
if “y” in str:
print “its in there”whats the best source for documentation on Ruby? i googled and checked
the homepage of ruby but there isnt really a clear one or im jus
duuumb.
str = “you muppet”
puts “its in there” if str.include? ‘y’
On Wednesday 07 May 2008, globalrev wrote:
whats the best source for documentation on Ruby? i googled and checked
the homepage of ruby but there isnt really a clear one or im jus
duuumb.
http://www.ruby-doc.org/docs/ProgrammingRuby/
RDoc Documentation (reference for the core classes)
RDoc Documentation (reference for the standard library)
Stefano
you can use also Regular Expression:
!(“ciao” =~ /i/).nil?
#=> true
On 7 Maj, 18:32, Marc H. [email protected] wrote:
duuumb.
str = “you muppet”
puts “its in there” if str.include? ‘y’–
Posted viahttp://www.ruby-forum.com/.
hmm it only works for one character though. i want to do:
if x in ‘aeiouy’:
do this
else:
do that
On 7 Maj, 19:39, [email protected] (matt neuburg) wrote:
if str =~ /y/
m.
–
matt neuburg, phd = [email protected],Matt Neuburg’s Home Page
Leopard -http://www.takecontrolbooks.com/leopard-customizing.html
AppleScript -Amazon.com
Read TidBITS! It’s free and smart.http://www.tidbits.com
but none of that is what i want to do.
i want to chekc if a char is in a string.
not check if a char equals another char.
globalrev [email protected] wrote:
how do i do this:
str = “you muppet”
if “y” in str:
print “its in there”
I always use regex in this situation:
if str =~ /y/
m.
The expression he gave uses the =~ operator, not the == operator. It
will
work if you try it in IRB (which I suggest you do before you post next
time)…
Dan
globalrev wrote:
On 7 Maj, 19:39, [email protected] (matt neuburg) wrote:
…if str =~ /y/
…
but none of that is what i want to do.i want to chekc if a char is in a string.
not check if a char equals another char.
Try the suggestion, you may be surprised 
globalrev [email protected] wrote:
if str =~ /y/
but none of that is what i want to do.
i want to chekc if a char is in a string.
not check if a char equals another char.
Try it!
m.
but none of that is what i want to do.
i want to chekc if a char is in a string.
not check if a char equals another char.
ok, you don’t know regexp
do it
On 7 Maj, 22:04, RedWiz [email protected] wrote:
but none of that is what i want to do.
i want to chekc if a char is in a string.
not check if a char equals another char.ok, you don’t know regexp
do it
but
if str =~ /aeiouy/
do foo
end
doesnt work. or i mena it works but iw ant to chekc if it is a vowel
not if contains the expr aeiouy.
how do i delimit the expressins?
On Wed, May 7, 2008 at 1:40 PM, globalrev [email protected] wrote:
I always use regex in this situation:
Read TidBITS! It’s free and smart.http://www.tidbits.combut none of that is what i want to do.
i want to chekc if a char is in a string.
not check if a char equals another char.
Along with the other suggestions, it might help you to read up on
regular expressions and what Ruby considers as true for a condition.
3 == false # false
3 == true # false
if 3; puts ‘hi’; end # hi
if {}; puts ‘hi’; end # hi
if []; puts ‘hi’; end # hi
Todd
globalrev wrote:
if str =~ /aeiouy/
do foo
enddoesnt work. or i mena it works but iw ant to chekc if it is a vowel
not if contains the expr aeiouy.
how do i delimit the expressins?
str =~ /[aeiouy]/
This checks if str contains one of those chars. Regular expressions are
worth learning more about.
globalrev wrote:
if str =~ /aeiouy/
do foo
enddoesnt work. or i mena it works but iw ant to chekc if it is a vowel
not if contains the expr aeiouy.
how do i delimit the expressins?
if str =~ /[aeiouy]/
do foo
end
[aeiouy] is a “character class”. The regular expression tests if any
character in the string is in the class.
On Wed, May 7, 2008 at 4:48 PM, Tim H. [email protected] wrote:
not if contains the expr aeiouy.
how do i delimit the expressins?if str =~ /[aeiouy]/
do foo
end[aeiouy] is a “character class”. The regular expression tests if any
character in the string is in the class.
Get a good book on regular expressions. Trust me, it will seriously
help you in the long run for most any type of programming/system
interaction. If you want a quick look at some syntax,
http://www.regular-expressions.info might help. Note that, this is
only one of many ways to do what you are trying to do, but I think it
is the best way for this case.
hth,
Todd
this way:
if str[x].chr =~ /[aeiouy]/
i can see if a char is any of the chars aeioyu
but i want to see if its not…
if str[x].chr !=~ /[aeiouy]/
doesnt work though…
and why cant i print [ in the windows ruby prompt?
Hi,
globalrev wrote:
this way:
if str[x].chr =~ /[aeiouy]/
i can see if a char is any of the chars aeioyubut i want to see if its not…
if str[x].chr !=~ /[aeiouy]/doesnt work though…
You can do like this:
if str[x].chr !~ /[aeiouy]/
Or
unless str[x].chr =~ /[aeiouy]/
Regards,
Park H.
On 2008-05-08, globalrev [email protected] wrote:
this way:
if str[x].chr =~ /[aeiouy]/
i can see if a char is any of the chars aeioyubut i want to see if its not…
if str[x].chr !=~ /[aeiouy]/
how about something like:
if not str[x].chr =~ /[aeiouy]/ then print “YO\n” end
OR
if str[x].chr !~ /[aeiouy]/ then print “YO\n” end
On Wed, May 7, 2008 at 5:19 PM, Todd B. [email protected] wrote:
Get a good book on regular expressions. Trust me, it will seriously
help you in the long run for most any type of programming/system
interaction. If you want a quick look at some syntax,
http://www.regular-expressions.info might help. Note that, this is
only one of many ways to do what you are trying to do, but I think it
is the best way for this case.
Hmm…hmm (cough). I was talking to globalrev, not Tim 
Todd