adler-32 - npm Package Compare versions

Comparing version 0.3.0 to 0.4.0

adler32.js

 /* adler32.js (C) 2014-present SheetJS -- http://sheetjs.com */
 /* vim: set ts=2: */
+/*exported ADLER32 */
 var ADLER32;
 (function (factory) {
+	/*jshint ignore:start */
 	if(typeof DO_NOT_EXPORT_ADLER === 'undefined') {
@@ -20,10 +22,10 @@ if('object' === typeof exports) {
 	}
+	/*jshint ignore:end */
 }(function(ADLER32) {
-ADLER32.version = '0.3.0';
-/* consult README.md for the magic number */
-/* charCodeAt is the best approach for binary strings */
+ADLER32.version = '0.4.0';
+/*global Buffer */
 var use_buffer = typeof Buffer !== 'undefined';
 function adler32_bstr(bstr) {
 	if(bstr.length > 32768) if(use_buffer) return adler32_buf(new Buffer(bstr));
-	var a = 1, b = 0, L = bstr.length, M;
+	var a = 1, b = 0, L = bstr.length, M = 0;
 	for(var i = 0; i < L;) {
@@ -42,3 +44,3 @@ M = Math.min(L-i, 3850)+i;
 function adler32_buf(buf) {
-	var a = 1, b = 0, L = buf.length, M;
+	var a = 1, b = 0, L = buf.length, M = 0;
 	for(var i = 0; i < L;) {
@@ -56,5 +58,4 @@ M = Math.min(L-i, 3850)+i;
 
-/* much much faster to intertwine utf8 and adler */
 function adler32_str(str) {
-	var a = 1, b = 0, L = str.length, M, c, d;
+	var a = 1, b = 0, L = str.length, M = 0, c = 0, d = 0;
 	for(var i = 0; i < L;) {
@@ -64,6 +65,6 @@ M = Math.min(L-i, 3850);
 			c = str.charCodeAt(i++);
-			if(c < 0x80) { a += c; b += a; --M; }
+			if(c < 0x80) { a += c; }
 			else if(c < 0x800) {
 				a += 192|((c>>6)&31);             b += a; --M;
-				a += 128|(c&63);                  b += a; --M;
+				a += 128|(c&63);
 			} else if(c >= 0xD800 && c < 0xE000) {
@@ -74,11 +75,12 @@ c = (c&1023)+64; d = str.charCodeAt(i++) & 1023;
 				a += 128|((d>>6)&15)|((c&3)<<4);  b += a; --M;
-				a += 128|(d&63);                  b += a; --M;
+				a += 128|(d&63);
 			} else {
 				a += 224|((c>>12)&15);            b += a; --M;
 				a += 128|((c>>6)&63);             b += a; --M;
-				a += 128|(c&63);                  b += a; --M;
+				a += 128|(c&63);
 			}
+			b += a; --M;
 		}
-		a %= 65521;
-		b %= 65521;
+		a = (15*(a>>>16)+(a&65535));
+		b = (15*(b>>>16)+(b&65535));
 	}
@@ -85,0 +87,0 @@ return (b << 16) | a;

package.json

 {
 	"name": "adler-32",
-	"version": "0.3.0",
+	"version": "0.4.0",
 	"author": "sheetjs",
 	"description": "Pure-JS ADLER-32",
 	"keywords": [ "adler32", "checksum" ],
+	"bin": {
+		"adler32": "./bin/adler32.njs"
+	},
 	"main": "./adler32",
+	"dependencies": {
+		"concat-stream":"",
+		"exit-on-epipe":""
+	},
 	"devDependencies": {
 		"mocha":"",
 		"xlsjs":"",
-		"uglify-js":"",
 		"codepage":""
@@ -24,3 +30,3 @@ },
 	},
-	"files": ["adler32.js", "LICENSE", "README.md"],
+	"files": ["adler32.js", "bin/adler32.njs", "LICENSE", "README.md"],
 	"bugs": { "url": "https://github.com/SheetJS/js-adler32/issues" },
@@ -27,0 +33,0 @@ "license": "Apache-2.0",

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Improved metrics

Dev dependency count

3

decreased by-25%

Lines of code

85

increased by2.41%

Worsened metrics

Total package byte prevSize

4533

decreased by-27.15%

Dependency count

2

increased byInfinity%

Number of medium quality alerts

3

increased byInfinity%

Number of lines in readme file

0

decreased by-100%

Dependency changes

• + Addedconcat-stream@

• + Addedexit-on-epipe@

• + Addedbuffer-from@1.1.2(transitive)

• + Addedconcat-stream@2.0.0(transitive)

• + Addedexit-on-epipe@1.0.1(transitive)

• + Addedinherits@2.0.4(transitive)

• + Addedreadable-stream@3.6.2(transitive)

• + Addedsafe-buffer@5.2.1(transitive)

• + Addedstring_decoder@1.3.0(transitive)

• + Addedtypedarray@0.0.6(transitive)

• + Addedutil-deprecate@1.0.2(transitive)