1 files changed, 87 insertions, 0 deletions
diff --git a/scripts/context/ruby/base/kpserunner.rb b/scripts/context/ruby/base/kpserunner.rb
new file mode 100644
index 000000000..cfc2ad4fb
--- /dev/null
+++ b/scripts/context/ruby/base/kpserunner.rb
@@ -0,0 +1,87 @@
+require 'base/kpsefast'
+
+module KpseRunner
+
+    @@kpse = nil
+
+    def KpseRunner.kpsewhich(arg='')
+        options, arguments = split_args(arg)
+        unless @@kpse then
+            if ENV['KPSEMETHOD'] && ENV['KPSEPORT'] then
+                require 'base/kpseremote'
+                @@kpse = KpseRemote.new
+            else
+                @@kpse = nil
+            end
+            if @@kpse && @@kpse.okay? then
+                @@kpse.progname = options['progname'] || ''
+                @@kpse.engine   = options['engine']   || ''
+                @@kpse.format   = options['format']   || ''
+            else
+                require 'base/kpsefast'
+                @@kpse = KpseFast.new
+                @@kpse.load_cnf
+                @@kpse.progname = options['progname'] || ''
+                @@kpse.engine   = options['engine']   || ''
+                @@kpse.format   = options['format']   || ''
+                @@kpse.expand_variables
+                @@kpse.load_lsr
+            end
+        else
+            @@kpse.progname = options['progname'] || ''
+            @@kpse.engine   = options['engine']   || ''
+            @@kpse.format   = options['format']   || ''
+            @@kpse.expand_variables
+        end
+        if    option = options['expand-braces'] and not option.empty? then
+            @@kpse.expand_braces(option)
+        elsif option = options['expand-path']   and not option.empty? then
+            @@kpse.expand_path(option)
+        elsif option = options['expand-var']    and not option.empty? then
+            @@kpse.expand_var(option)
+        elsif option = options['show-path']     and not option.empty? then
+            @@kpse.show_path(option)
+        elsif option = options['var-value']     and not option.empty? then
+            @@kpse.expand_var(option)
+        elsif arguments.size > 0 then
+            files = Array.new
+            arguments.each do |option|
+                if file = @@kpse.find_file(option) and not file.empty? then
+                    files << file
+                end
+            end
+            files.join("\n")
+        else
+            ''
+        end
+    end
+
+    def KpseRunner.kpsereset
+        @@kpse = nil
+    end
+
+    private
+
+    def KpseRunner.split_args(arg)
+        vars, args = Hash.new, Array.new
+        arg.gsub!(/([\"\'])(.*?)\1/o) do
+            $2.gsub(' ','<space/>')
+        end
+        arg = arg.split(/\s+/o)
+        arg.collect! do |a|
+            a.gsub('<space/>',' ')
+        end
+        arg.each do |a|
+            if a =~ /^(.*?)\=(.*?)$/o then
+                k, v = $1, $2
+                vars[k.sub(/^\-+/,'')] = v
+            else
+                args << a
+            end
+        end
+        # puts vars.inspect
+        # puts args.inspect
+        return vars, args
+    end
+
+end