From: Saeed Bhuta <saeed.bhuta@...>
Date: 2010-04-22T22:12:51+09:00
Subject: If-Else within a loop going through array elements...

Hi All,

I'm having problems with a if-else statement within a loop which cycles
through an array, the code;

"require 'rubygems'
require 'pg'
require 'hpricot'
require 'open-uri'


@doc= Hpricot(open("websiteURL"))

#Get the departure boards for both directions (eastbound and westbound)
boardsDiv = @doc.search('div[@class^="board"]')
puts "board divs found: "+boardsDiv.count.to_s

directionArray = boardsDiv.search('strong')
#puts directionArray.count.to_s

platDivArray = boardsDiv.search('table[@class^="eta"]')


#puts "Number of boards found: " +platDivArray.count.to_s

  #loop through each board
platDivArray.each {|board|
  trArray = board.search("tr")

  #pop the dud row
  trArray.delete_at(0)

  detailsArray = [ ]

  i = 0;
  #loop through each row
  trArray.each {|entry|
    i+=1
    tdArray = entry.search("td")
    #puts "Number of td tags found: "+tdArray.count.to_s

    serviceDetailsHash = Hash.new

    #direction = caption
    #puts direction.inner_html
    route = tdArray[0].inner_html
    serviceDetailsHash["route"] = route
    #puts route

    dueIn = tdArray[1].inner_html
    serviceDetailsHash["dueIn"] = dueIn
    #puts dueIn

    departing = tdArray[2].inner_html
    serviceDetailsHash["departing"] = departing

    if i == 1
      puts "if statement is working for first condition"
      serviceDetailsHash["direction"] = directionArray[0].inner_html

    else if i == 2
      puts "if statement is working for second condition"
      serviceDetailsHash["direction"] = directionArray[1].inner_html
    end

    #puts departing
    detailsArray << serviceDetailsHash

  }#next row

}# next board"



Gives the following error:

"ruby riverservicescraper.rb
riverservicescraper.rb:52: syntax error, unexpected '{', expecting kTHEN
or ':' or '\n' or ';'
riverservicescraper.rb:56: syntax error, unexpected kELSE, expecting '}'
    else if i == 2 {
        ^
riverservicescraper.rb:56: syntax error, unexpected '{', expecting kTHEN
or ':' or '\n' or ';'
riverservicescraper.rb:60: syntax error, unexpected kEND, expecting $end
abcb293@apostis:~/Ruby-Scraper$ ruby riverservicescraper.rb
riverservicescraper.rb:52: syntax error, unexpected '{', expecting kTHEN
or ':' or '\n' or ';'
riverservicescraper.rb:56: syntax error, unexpected kELSE, expecting '}'
    else if i == 2 {
        ^
riverservicescraper.rb:56: syntax error, unexpected '{', expecting kTHEN
or ':' or '\n' or ';'
riverservicescraper.rb:60: syntax error, unexpected kEND, expecting $end
abcb293@apostis:~/Ruby-Scraper$ ruby riverservicescraper.rb
riverservicescraper.rb:64: syntax error, unexpected '}', expecting kEND
  }#next row
   ^
abcb293@apostis:~/Ruby-Scraper$
abcb293@apostis:~/Ruby-Scraper$
abcb293@apostis:~/Ruby-Scraper$
abcb293@apostis:~/Ruby-Scraper$ ruby riverservicescraper.rb
riverservicescraper.rb:64: syntax error, unexpected '}', expecting kEND
  }#next row
   ^"

I know its to do with the if-else statement because when this is
commented the code runs without any errors.

Any help is sincerely appreciated..

Saeed.
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