1 files changed, 41 insertions, 0 deletions
diff --git a/ruby_1_8_6/sample/eval.rb b/ruby_1_8_6/sample/eval.rb
new file mode 100644
index 0000000000..90b839e873
--- /dev/null
+++ b/ruby_1_8_6/sample/eval.rb
@@ -0,0 +1,41 @@
+line = ''
+indent = 0
+$stdout.sync = TRUE
+print "ruby> "
+loop do
+  l = gets
+  if l.nil?
+    break if line.empty?
+  else
+    line += l
+    if l =~ /,\s*$/
+      print "ruby| "
+      next
+    end
+    if l =~ /^\s*(class|module|def|if|unless|case|while|until|for|begin)\b[^_]/
+      indent += 1
+    end
+    if l =~ /^\s*end\b[^_]/
+      indent -= 1
+    end
+    if l =~ /\{\s*(\|.*\|)?\s*$/
+      indent += 1
+    end
+    if l =~ /^\s*\}/
+      indent -= 1
+    end
+    if indent > 0
+      print "ruby| "
+      next
+    end
+  end
+  begin
+    print eval(line).inspect, "\n"
+  rescue ScriptError, StandardError
+    printf "ERR: %s\n", $! || 'exception raised'
+  end
+  break if l.nil?
+  line = ''
+  print "ruby> "
+end
+print "\n"