X-Git-Url: https://jasonwoof.com/gitweb/?p=hexbog.git;a=blobdiff_plain;f=compress.coffee;fp=compress.coffee;h=6fc340f90f0cc4016d22ec31ccb730ec2cf6ff54;hp=0000000000000000000000000000000000000000;hb=c5ea138fb8cfce9977ce486c9fbceedebe8af2c4;hpb=2b426ca9467ccfa6ffb5a3e60905650c9f601d7a

diff --git a/compress.coffee b/compress.coffee
new file mode 100644
index 0000000..6fc340f
--- /dev/null
+++ b/compress.coffee
@@ -0,0 +1,31 @@
+orig_file = 'wordlist.txt'
+compressed_file = 'wordlist_compressed.js'
+caps = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+fs = require 'fs'
+
+fs.readFile orig_file, 'utf8', (err, data) ->
+	if err?
+		console.log "Error reading #{orig_file}: #{err}"
+		process.exit(1)
+	else
+		fs.writeFile compressed_file, (compress data.split '\n'), (err) ->
+			if err?
+				console.log "Error writing to #{compressed_file}: #{err}"
+				process.exit(1)
+
+compress = (words) ->
+	out = 'parse_word_list(['
+	chunk = ''
+	prev = ''
+	for next in words
+		match = prev.length
+		while match and next.substr(0, match) isnt prev.substr(0, match)
+			--match
+		# now match is the number of prefix characters this word has in common with the previous
+		chunk += caps[prev.length - match]
+		if chunk.length > 2000
+			out += "'" + chunk.substr(1) + "',"
+			chunk = '.'
+		chunk += next.substr match
+		prev = next
+	return out + "'" + chunk.substr(1) + "']);"