some Ruby stuff, just my little toys

3 files changed, 183 insertions, 0 deletions

diff --git a/tests/ruby/README b/tests/ruby/README
new file mode 100644
index 0000000..b1198b2
--- /dev/null
+++ b/tests/ruby/README
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+This is just some stuff to play with symbols/inet file, trying to analize it.
+Only maintainers might be interested. It is written in Ruby - but it will 
+never be actually used in xkeyboard-config distribution.
diff --git a/tests/ruby/find_match.rb b/tests/ruby/find_match.rb
new file mode 100644
index 0000000..4a80691
--- /dev/null
+++ b/tests/ruby/find_match.rb
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+require "xkbparser.rb"
+
+basedir = "../.."
+
+parser = Parser.new
+
+allSyms = parser.parse("#{basedir}/symbols/inet")
+
+newSyms = parser.parse(ARGV[0])
+limit = ARGV[1].to_i
+
+newSyms.find_all do | key, value |
+
+  if value.hidden?
+    next
+  end
+
+  puts "Existing xkb_symbols matching #{key}: "
+
+  sorted = allSyms.match_symbols(value,limit).sort_by do | symsName, diff |
+    sprintf "%03d_%s", diff.size, symsName
+  end
+
+  sorted.find_all do | symsName, diff |
+    puts "  #{symsName} (difference #{diff.size})-> #{diff}"
+  end
+
+end
+
+
diff --git a/tests/ruby/xkbparser.rb b/tests/ruby/xkbparser.rb
new file mode 100644
index 0000000..27eb258
--- /dev/null
+++ b/tests/ruby/xkbparser.rb
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+#
+# $Id$
+#
+# Commont parsing classes for symbols/inet
+# The parsing is simplified, based on regex - it is NOT a real parser for very
+# complex XKB format
+#
+
+class Symbols < Hash
+
+  #
+  # Constructor
+  #
+  def initialize
+    @includedSyms = Array.new
+  end
+
+  # Write-only property, parent list of symbols definitions
+  def symbols_list=(symbolsList)
+    @symbolsList = symbolsList
+  end
+
+  # Whether this set of symbols is hidden or not
+  def hidden?
+    @hidden
+  end
+
+  def hidden=(h)
+    @hidden = h
+  end
+
+  #
+  # Add "dependency" - the symbols referenced using the "include" statement.
+  #
+  def add_included(other)
+    @includedSyms.push(other)
+  end
+
+  alias get_original []
+
+  #
+  # Get the symbol, trying first own definitions, then walking through all 
+  # dependenies
+  #
+  def [](symName)
+    own = self.get_original(symName)
+    if own.nil?
+      @includedSyms.find_all do | symsName |
+        syms = @symbolsList[symsName]
+        his = syms[symName]
+        if !his.nil?
+          own = his
+          break
+        end
+      end
+    end
+    own
+  end
+
+  #
+  # Create a hash including all elements of this hash which are not in the
+  # other hash, use symbols + and * for marking the elements which existed in
+  # the original hash (+ if not existed)
+  #
+  def -(other)
+    diff = self.class.new
+    self.find_all do | key, value | 
+      existing = other[key]
+      if existing != value
+        diff[key] = [ value, existing.nil? ? '+' : '' ]
+      end 
+    end
+    diff
+  end
+
+
+  def to_s
+    s = "{\n"
+    # First output included syms
+    @includedSyms.find_all do | symsName |
+       s += "  include \"inet(#{symsName})\"\n"
+    end
+    # Then - own definitions
+    self.find_all do | key, value |
+       s += "  key #{key} { [ #{value} ] };\n"
+    end
+    s + "}";
+  end
+
+end
+
+class SymbolsList < Hash
+
+  #
+  # Add new xkb_symbols
+  #
+  def add_symbols (symbolsName, hidden)
+    newSyms = Symbols.new
+    newSyms.symbols_list = self
+    newSyms.hidden = hidden
+    self[symbolsName] = newSyms
+  end
+
+  def to_s
+    s = "// Autogenerated\n\n"
+    self.find_all do | symbols, mapping |
+      s += "partial alphanumeric_keys\nxkb_symbols \"#{symbols}\" #{mapping};\n\n" 
+    end
+    s
+  end
+
+  def match_symbols(new_symbols,limit)
+    matching = Hash.new
+    find_all do | symbols, mapping |
+      diff = new_symbols - mapping
+      if diff.size <= limit
+        matching[symbols] = diff
+      end
+    end
+    matching
+  end
+
+end
+
+class Parser
+
+  def parse (fileName)
+    allSyms = SymbolsList.new;
+    currentSyms = nil
+    hidden = false
+    File.open(fileName) do | file |
+      file.each_line do | line |
+        line.scan(/xkb_symbols\s+"(\w+)"/) do | symsName |
+          currentSyms = allSyms.add_symbols(symsName[0], hidden)
+        end
+        line.scan(/^\s*key\s*<(\w+)>\s*\{\s*\[\s*(\w+)/) do | keycode, keysym |
+          currentSyms[keycode] = keysym
+        end
+        line.scan(/^partial\s+(hidden\s+)?alphanumeric_keys/) do | h |
+          hidden = !h[0].nil?
+        end
+        line.scan(/^\s*include\s+"inet\((\w+)\)"/) do | otherPart |
+          currentSyms.add_included(otherPart[0])
+        end
+      end
+    end
+    allSyms
+  end
+
+end