1 files changed, 106 insertions, 0 deletions

diff --git a/woip/rb/livesearch.rb b/woip/rb/livesearch.rb
new file mode 100644
index 0000000..f57ae04
--- /dev/null
+++ b/woip/rb/livesearch.rb
@@ -0,0 +1,106 @@
+require 'rubygems'
+require 'curses'
+require 'inline'
+
+class TernarySearcher
+  RESULTS = 10
+  
+  inline(:C) do |builder|
+    builder.include '"ternary.h"'
+    builder.add_compile_flags "-I../c -I. -DDEBUG"
+    builder.add_compile_flags "../c/searcher.c"
+    
+    builder.prefix "
+    char resultbuf[#{RESULTS}][MAXLINE];
+    int haveresults;
+    "
+    
+    builder.c "int handleResult(char *s) {
+      strncpy(resultbuf[haveresults++], s, MAXLINE);
+      if(haveresults == #{RESULTS}) return false;
+      else return true;
+    }"
+    
+    builder.c 'void __init(char *indexFile) {
+      load_root(indexFile);
+    }'
+    
+    builder.c 'void __prefixSearch(char *s, int n) {
+      haveresults = 0;
+      root_search(s, handleResult);
+    }'
+  end
+  
+  def initialize(index)
+    __init(index)
+  end
+  
+  def prefixSearch(str, n)
+    @results = []
+    __prefixSearch(str, n)
+  end
+end
+
+class Searcher
+  def initialize
+    @needle = ""
+    @xap = XapianSearcher.new(ARGV.first)
+  end
+  
+  def refresh
+    Curses.clear
+    Curses.setpos(0, 0)
+    Curses.addstr(@needle)
+    draw_matches
+    Curses.refresh
+  end
+  
+  def draw_matches
+    line = 1
+    @matches.each do |match|
+      match.draw(line += 1)
+    end
+  end
+  
+  def search
+    @matches = @xap.matches(@needle).map do |match|
+      Match.new(match)
+    end
+  end
+  
+  def run
+    Curses.init_screen
+    Curses.noecho
+    Curses.stdscr.keypad(true)
+    
+    loop do
+      char = Curses.getch
+      
+      if char == 127 # Backspace
+        @needle = @needle[0..-2] unless @needle.empty?
+      else
+        @needle += char.chr
+      end
+      search
+      refresh
+    end        
+  ensure
+    Curses.close_screen
+  end
+end
+
+class Match
+  def initialize(str)
+    @string = str
+  end
+  
+  def draw(line)
+    Curses.setpos(line, 0)
+    Curses.addstr(@string)
+  end
+end
+
+if $0 == __FILE__
+  puts "running..."
+  Searcher.new.run
+end
\ No newline at end of file