1 files changed, 84 insertions, 0 deletions
diff --git a/scripts/context/ruby/base/kpse/trees.rb b/scripts/context/ruby/base/kpse/trees.rb
new file mode 100644
index 000000000..9c872eb18
--- /dev/null
+++ b/scripts/context/ruby/base/kpse/trees.rb
@@ -0,0 +1,84 @@
+require 'monitor'
+require 'base/kpsefast'
+
+class KpseTrees < Monitor
+
+    def initialize
+        @trees = Hash.new
+    end
+
+    def pattern(filenames)
+        filenames.join('|').gsub(/\\+/o,'/').downcase
+    end
+
+    def choose(filenames,environment)
+        current = pattern(filenames)
+        load(filenames,environment) unless @trees[current]
+        puts "enabling tree #{current}"
+        current
+    end
+
+    def fetch(filenames,environment) # will send whole object !
+        current = pattern(filenames)
+        load(filenames,environment) unless @trees[current]
+        puts "fetching tree #{current}"
+        @trees[current]
+    end
+
+    def load(filenames,environment)
+        current = pattern(filenames)
+        puts "loading tree #{current}"
+        @trees[current] = KpseFast.new
+        @trees[current].push_environment(environment)
+        @trees[current].load_cnf(filenames)
+        @trees[current].expand_variables
+        @trees[current].load_lsr
+    end
+
+    def set(tree,key,value)
+        case key
+            when 'progname' then @trees[tree].progname = value
+            when 'engine'   then @trees[tree].engine   = value
+            when 'format'   then @trees[tree].format   = value
+        end
+    end
+    def get(tree,key)
+        case key
+            when 'progname' then @trees[tree].progname
+            when 'engine'   then @trees[tree].engine
+            when 'format'   then @trees[tree].format
+        end
+    end
+
+    def load_cnf(tree)
+        @trees[tree].load_cnf
+    end
+    def load_lsr(tree)
+        @trees[tree].load_lsr
+    end
+    def expand_variables(tree)
+        @trees[tree].expand_variables
+    end
+    def expand_braces(tree,str)
+        @trees[tree].expand_braces(str)
+    end
+    def expand_path(tree,str)
+        @trees[tree].expand_path(str)
+    end
+    def expand_var(tree,str)
+        @trees[tree].expand_var(str)
+    end
+    def show_path(tree,str)
+        @trees[tree].show_path(str)
+    end
+    def var_value(tree,str)
+        @trees[tree].var_value(str)
+    end
+    def find_file(tree,filename)
+        @trees[tree].find_file(filename)
+    end
+    def find_files(tree,filename,first)
+        @trees[tree].find_files(filename,first)
+    end
+
+end