Sequentially output each hash key and value

ruby-talk
1

Hi,

I have a snippet of code which

1. asks for a title from user
2. opens a text file of the form :

definition: blah blah blah
incidence: blah yah blah
category: yeah blah tah
..
..

3. puts everything to the left of the : into a hash as the keys, and
everything to the right in as matching values.
4. Outputs it as "Title.htm" file in format I want

My code works for (obviously) the key and value ONLY in the 1 position -
Problem is I can't figure out how to get it to sequentially iterate thru the
whole hash table - should be easy, but I can't make it work... Thanks in
advance !

Here is my code:

p "Enter a title..."
title = gets.chomp
talks_text =
dict = {}
IO.foreach("testfile.txt") do

x>

if
y = /:/.match(x)
y = y.pre_match
z=/:/.match(x)
z = z.post_match
dict[y] = z
end
end
dict.sort

File::open(title + '.htm', 'w') do |f|
f.puts "<HTML>\n<HEAD><TITLE>" + title + "</TITLE></HEAD>\n<BODY
bgcolor=#FFDEAD>\n"
f.puts "<CENTER><A NAME=\"page_top\"><H1>" + title + "</H1></A>"
  f.puts "by Charles L. Snyder, MD<BR>\n"
f.puts "</CENTER>\n<HR>\n"
  f.puts "<A NAME=\"$anchor\"><H2>" + dict.keys[1] + "</H2></A>" +
dict.values[1] + "<BR>"
f.puts "<CENTER><A HREF=\'javascript:window.history.back()\'>Back</A>&nbsp"
  f.puts "</CENTER>\n<HR>\n"
end

CLS

2

Charles L. Snyder wrote:

My code works for (obviously) the key and value ONLY in the 1 position -
Problem is I can't figure out how to get it to sequentially iterate thru the
whole hash table - should be easy, but I can't make it work... Thanks in
advance !

Hash#each

3

Charles L. Snyder wrote:

Hi,

I have a snippet of code which

1. asks for a title from user
2. opens a text file of the form :

definition: blah blah blah
incidence: blah yah blah
category: yeah blah tah
.
.

3. puts everything to the left of the : into a hash as the keys, and
everything to the right in as matching values.
4. Outputs it as "Title.htm" file in format I want

My code works for (obviously) the key and value ONLY in the 1
position

What do you mean by that?

- Problem is I can't figure out how to get it to
sequentially iterate thru the whole hash table - should be easy, but
I can't make it work... Thanks in advance !

Here is my code:

p "Enter a title..."
title = gets.chomp
talks_text =
dict = {}
IO.foreach("testfile.txt") do

x>

if
y = /:/.match(x)
y = y.pre_match
z=/:/.match(x)
z = z.post_match
dict[y] = z
end
end

Reading can be somewhat simplified:

# untested
IO.foreach("testfile.txt") do |line|
  if /^\s*(w+)\s*:\s*\b(.*)$/ =~ line
    dict[$1] = $2
  end
end

dict.sort

This sort is useless as it will not sort the Hash but return an ordered
array of arrays. You're only wasting CPU cycles here.

File::open(title + '.htm', 'w') do |f|
f.puts "<HTML>\n<HEAD><TITLE>" + title + "</TITLE></HEAD>\n<BODY
bgcolor=#FFDEAD>\n"
f.puts "<CENTER><A NAME=\"page_top\"><H1>" + title + "</H1></A>"
  f.puts "by Charles L. Snyder, MD<BR>\n"
f.puts "</CENTER>\n<HR>\n"
  f.puts "<A NAME=\"$anchor\"><H2>" + dict.keys[1] + "</H2></A>" +
dict.values[1] + "<BR>"
f.puts "<CENTER><A
  HREF=\'javascript:window.history.back()\'>Back</A>&nbsp" f.puts
"</CENTER>\n<HR>\n" end

File::open(title + '.htm', 'w') do |f|
f.puts "<HTML>\n<HEAD><TITLE>" + title + "</TITLE></HEAD>\n<BODY
bgcolor=#FFDEAD>\n"
f.puts "<CENTER><A NAME=\"page_top\"><H1>" + title + "</H1></A>"
  f.puts "by Charles L. Snyder, MD<BR>\n"
  f.puts "</CENTER>\n<HR>\n"

  dict.sort.each do |key,value|
    f.puts "<A NAME=\"$anchor\"><H2>" + key + "</H2></A>" + value + "<BR>"
  end

f.puts "<CENTER><A
HREF=\'javascript:window.history.back()\'>Back</A>&nbsp"
  f.puts "</CENTER>\n<HR>\n"
end

Kind regards

    robert