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|
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
|
