diff options
Diffstat (limited to 'sample/eval.rb')
| -rw-r--r-- | sample/eval.rb | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/sample/eval.rb b/sample/eval.rb new file mode 100644 index 0000000000..da31b77153 --- /dev/null +++ b/sample/eval.rb @@ -0,0 +1,41 @@ +line = '' +indent=0 +print "ruby> " +while TRUE + l = gets + if not l + break if line == '' + else + line = line + l + if l =~ /,\s*$/ + print "ruby| " + next + end + if l =~ /^\s*(class|module|def|if|case|while|for|begin)\b[^_]/ + indent += 1 + end + if l =~ /^\s*end\b[^_]/ + indent -= 1 + end + if l =~ /{\s*(\|.*\|)?\s*$/ + indent += 1 + end + if l =~ /^\s*\}/ + indent -= 1 + end + if indent > 0 + print "ruby| " + next + end + end + begin + print eval(line).inspect, "\n" + rescue + $! = 'exception raised' if not $! + print "ERR: ", $!, "\n" + end + break if not l + line = '' + print "ruby> " +end +print "\n" |