Find a component definition in a list

glro

i select an object in the model
If it is a component, the code gets its definition and puts it in a string named "ref"

for e in selection
        if e.is_a? Sketchup;;ComponentInstance
            ref = e.definition.name.to_s
        end 
end

then i want to compare the "ref" to strings in a list (an array?) called "references", and find the one that matches

for z in (0..715) do
		if references[z] == ref
			puts "hello"
		end
end

I know there is one string among the 716 strings, that matches to "ref", but the program never says "hello", doesn't find it

what am i missing? Is it a bug in Ruby?

TIG

Define 'ref' OUTSIDE of the block iteration

ref=nil
for e in selection
  if e.is_a? Sketchup;;ComponentInstance
    ref = e.definition.name.to_s
  end
end

Some simpler code would be

ref=selection.grep(Sketchup;;ComponentInstance)[0]
return nil unless ref

Then

references.each{|r|
  if ref==r
    puts 'hello'
    break
  end
}

OR MUCH simpler

puts 'hello' in references.include?(ref)

Are you sure that the exact 'name' is in the array ?
What is 'ref' ??

glro

@glro said:

what am i missing? Is it a bug in Ruby?

sorry for asking the question, i found the answer...

		for z in (0..715) do
			#rstrip to suppress whitespaces
			if references[z].rstrip == ref
			puts "hello"
			end #if
		end #for z in

i had whitespaces at the end of references[z]; to remove them:
52 str.rstrip
Returns a copy of str with trailing whitespace removed.

ERROR: The request could not be satisfied

(www.tutorialspoint.com)

funny how programming depends so much on very trivial details...

thomthom

A less verbose version:.

<span class="syntaxdefault">result&nbsp;</span><span class="syntaxkeyword">=&nbsp;</span><span class="syntaxdefault">references</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">find&nbsp;</span><span class="syntaxkeyword">{&nbsp;|</span><span class="syntaxdefault">string</span><span class="syntaxkeyword">|&nbsp;</span><span class="syntaxdefault">string</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">rstrip&nbsp;</span><span class="syntaxkeyword">==&nbsp;</span><span class="syntaxdefault">ref&nbsp;</span><span class="syntaxkeyword">}<br /></span><span class="syntaxdefault">puts&nbsp;</span><span class="syntaxstring">'Hello'&nbsp;</span><span class="syntaxkeyword">if&nbsp;</span><span class="syntaxdefault">result</span>