Initial revisionv1_0_r2

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 22 insertions, 0 deletions

diff --git a/sample/exyacc.rb b/sample/exyacc.rb
new file mode 100644
index 0000000000..dbe0dee710
--- /dev/null
+++ b/sample/exyacc.rb
@@ -0,0 +1,22 @@
+#! /usr/local/bin/ruby -Kn
+# usage: exyacc.rb [yaccfiles]
+# this is coverted from exyacc.pl in the camel book
+
+$/ = nil
+
+while gets()
+  sbeg = $_.index("\n%%") + 1
+  send = $_.rindex("\n%%") + 1
+  $_ = $_[sbeg, send-sbeg]
+  sub!(/.*\n/, "")
+  gsub!(/'{'/, "'\001'")
+  gsub!(/'}'/, "'\002'")
+  gsub!('\*/', "\003\003")
+  gsub!("/\\*[^\003]*\003\003", '')
+  while gsub!(/\{[^{}]*}/, ''); end
+  gsub!(/'\001'/, "'{'")
+  gsub!(/'\002'/, "'}'")
+  while gsub!(/^[ \t]*\n(\s)/, '\1'); end
+  gsub!(/([:|])[ \t\n]+(\w)/, '\1 \2')
+  print $_
+end