diff options
Diffstat (limited to 'trunk/sample/eval.rb')
-rw-r--r-- | trunk/sample/eval.rb | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/trunk/sample/eval.rb b/trunk/sample/eval.rb new file mode 100644 index 0000000000..ed4b7c3de5 --- /dev/null +++ b/trunk/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" |