Initial commit
This commit is contained in:
commit
35003c5bda
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node_modules
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misc/coverage.html
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@ -0,0 +1,6 @@
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{
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||||
"requireCommaBeforeLineBreak": true,
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||||
"disallowTrailingWhitespace": true,
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||||
"disallowTrailingComma": true
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||||
}
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||||
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||||
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@ -0,0 +1,11 @@
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language: node_js
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||||
node_js:
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||||
- "0.11"
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||||
- "0.10"
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||||
- "0.8"
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||||
before_install:
|
||||
- "npm install -g mocha"
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||||
- "npm install blanket"
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||||
- "npm install coveralls mocha-lcov-reporter"
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||||
after_success:
|
||||
- "make coveralls-spin"
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||||
|
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@ -0,0 +1,14 @@
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|||
Copyright (C) 2014 SheetJS
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
|
||||
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@ -0,0 +1,53 @@
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|||
LIB=crc32
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DEPS=$(sort $(wildcard bits/*.js))
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TARGET=$(LIB).js
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|
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$(TARGET): $(DEPS)
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||||
cat $^ | tr -d '\15\32' > $@
|
||||
cp -f $@ ctest/
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||||
|
||||
bits/01_version.js: package.json
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echo "CRC32.version = '"`grep version package.json | awk '{gsub(/[^0-9a-z\.-]/,"",$$2); print $$2}'`"';" > $@
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||||
|
||||
.PHONY: clean
|
||||
clean:
|
||||
rm -f $(TARGET)
|
||||
|
||||
.PHONY: test mocha
|
||||
test mocha: test.js
|
||||
mocha -R spec
|
||||
|
||||
.PHONY: ctest
|
||||
ctest:
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||||
cat misc/*.js > ctest/fixtures.js
|
||||
cp -f test.js ctest/test.js
|
||||
cp -f $(TARGET) ctest/
|
||||
|
||||
.PHONY: lint
|
||||
lint: $(TARGET)
|
||||
jshint --show-non-errors $(TARGET)
|
||||
jscs $(TARGET)
|
||||
|
||||
.PHONY: cov cov-spin
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||||
cov: misc/coverage.html
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||||
cov-spin:
|
||||
make cov & bash misc/spin.sh $$!
|
||||
|
||||
COVFMT=$(patsubst %,cov_%,$(FMT))
|
||||
.PHONY: $(COVFMT)
|
||||
$(COVFMT): cov_%:
|
||||
FMTS=$* make cov
|
||||
|
||||
misc/coverage.html: $(TARGET) test.js
|
||||
mocha --require blanket -R html-cov > $@
|
||||
|
||||
.PHONY: coveralls coveralls-spin
|
||||
coveralls:
|
||||
mocha --require blanket --reporter mocha-lcov-reporter | ./node_modules/coveralls/bin/coveralls.js
|
||||
|
||||
coveralls-spin:
|
||||
make coveralls & bash misc/spin.sh $$!
|
||||
|
||||
.PHONY: perf
|
||||
perf:
|
||||
bash perf/perf.sh
|
||||
|
|
@ -0,0 +1,54 @@
|
|||
# crc32
|
||||
|
||||
Standard CRC-32 algorithm implementation in JS (for the browser and nodejs).
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||||
Emphasis on correctness and performance.
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||||
|
||||
## Installation
|
||||
|
||||
In [nodejs](https://www.npmjs.org/package/crc-32):
|
||||
|
||||
npm install crc-32
|
||||
|
||||
In the browser:
|
||||
|
||||
<script lang="javascript" src="crc32.js"></script>
|
||||
|
||||
The browser exposes a variable CRC32
|
||||
|
||||
## Usage
|
||||
|
||||
- `CRC32.buf(byte array or buffer)` assumes the argument is a set of 8 bit
|
||||
unsigned integers (e.g. nodejs `Buffer` or simple array of ints)
|
||||
|
||||
- `CRC32.bstr(binary string)` interprets the argument as a binary string where
|
||||
the `i`-th byte is `str.charCodeAt(i)`
|
||||
|
||||
- `CRC32.str(string)` interprets the argument as a standard JS string
|
||||
|
||||
## Testing
|
||||
|
||||
`make test` will run the nodejs-based test. To run the in-browser tests, run a
|
||||
local server and go to the `ctest` directory. To update the browser artifacts,
|
||||
run `make ctest`.
|
||||
|
||||
## Performance
|
||||
|
||||
`make perf` will run performance tests.
|
||||
|
||||
## In the future ...
|
||||
|
||||
- Specifying an arbitrary initial CRC value
|
||||
|
||||
- Supporting different polynomials (e.g. CRC32C)
|
||||
|
||||
## License
|
||||
|
||||
Please consult the attached LICENSE file for details. All rights not explicitly
|
||||
granted by the Apache 2.0 license are reserved by the Original Author.
|
||||
|
||||
[](https://travis-ci.org/SheetJS/js-crc32)
|
||||
|
||||
[](https://coveralls.io/r/SheetJS/js-crc32?branch=master)
|
||||
|
||||
[](http://githalytics.com/SheetJS/js-crc32)
|
||||
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
/* crc32.js (C) 2014 SheetJS -- http://sheetjs.com */
|
||||
/* vim: set ts=2: */
|
||||
var CRC32 = {};
|
||||
(function(CRC32) {
|
||||
|
|
@ -0,0 +1 @@
|
|||
CRC32.version = '0.1.0';
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
/* see perf/crc32table.js */
|
||||
function signed_crc_table() {
|
||||
var c, table = new Array(256);
|
||||
|
||||
for(var n =0; n != 256; ++n){
|
||||
c = n;
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
table[n] = c;
|
||||
}
|
||||
|
||||
return table;
|
||||
}
|
||||
|
||||
var table = signed_crc_table();
|
||||
|
|
@ -0,0 +1,40 @@
|
|||
/* charCodeAt is the best approach for binary strings */
|
||||
function crc32_bstr(bstr) {
|
||||
for(var crc = -1, i = 0, L=bstr.length-1; i < L;) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
}
|
||||
if(i === L) crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
return crc ^ -1;
|
||||
}
|
||||
|
||||
function crc32_buf(buf) {
|
||||
for(var crc = -1, i = 0; i != buf.length; ++i) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ buf[i]) & 0xFF];
|
||||
}
|
||||
return crc ^ -1;
|
||||
}
|
||||
|
||||
/* much much faster to intertwine utf8 and crc */
|
||||
function crc32_str(str) {
|
||||
for(var crc = -1, i = 0, L=str.length, c, d; i < L;) {
|
||||
c = str.charCodeAt(i++);
|
||||
if(c < 0x80) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ c) & 0xFF];
|
||||
} else if(c < 0x800) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (192|((c>>6)&31))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|(c&63))) & 0xFF];
|
||||
} else if(c >= 0xD800 && c < 0xE000) {
|
||||
c = (c&1023)+64; d = str.charCodeAt(i++) & 1023;
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (240|((c>>8)&7))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|((c>>2)&63))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|((d>>6)&15)|(c&3))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|(d&63))) & 0xFF];
|
||||
} else {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (224|((c>>12)&15))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|((c>>6)&63))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|(c&63))) & 0xFF];
|
||||
}
|
||||
}
|
||||
return crc ^ -1;
|
||||
}
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
CRC32.table = table;
|
||||
CRC32.bstr = crc32_bstr;
|
||||
CRC32.buf = crc32_buf;
|
||||
CRC32.str = crc32_str;
|
||||
|
|
@ -0,0 +1 @@
|
|||
})(typeof exports !== "undefined" && typeof DO_NOT_EXPORT_CRC === 'undefined' ? exports : CRC32);
|
||||
|
|
@ -0,0 +1,71 @@
|
|||
/* crc32.js (C) 2014 SheetJS -- http://sheetjs.com */
|
||||
/* vim: set ts=2: */
|
||||
var CRC32 = {};
|
||||
(function(CRC32) {
|
||||
CRC32.version = '0.1.0';
|
||||
/* see perf/crc32table.js */
|
||||
function signed_crc_table() {
|
||||
var c, table = new Array(256);
|
||||
|
||||
for(var n =0; n != 256; ++n){
|
||||
c = n;
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
table[n] = c;
|
||||
}
|
||||
|
||||
return table;
|
||||
}
|
||||
|
||||
var table = signed_crc_table();
|
||||
/* charCodeAt is the best approach for binary strings */
|
||||
function crc32_bstr(bstr) {
|
||||
for(var crc = -1, i = 0, L=bstr.length-1; i < L;) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
}
|
||||
if(i === L) crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
return crc ^ -1;
|
||||
}
|
||||
|
||||
function crc32_buf(buf) {
|
||||
for(var crc = -1, i = 0; i != buf.length; ++i) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ buf[i]) & 0xFF];
|
||||
}
|
||||
return crc ^ -1;
|
||||
}
|
||||
|
||||
/* much much faster to intertwine utf8 and crc */
|
||||
function crc32_str(str) {
|
||||
for(var crc = -1, i = 0, L=str.length, c, d; i < L;) {
|
||||
c = str.charCodeAt(i++);
|
||||
if(c < 0x80) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ c) & 0xFF];
|
||||
} else if(c < 0x800) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (192|((c>>6)&31))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|(c&63))) & 0xFF];
|
||||
} else if(c >= 0xD800 && c < 0xE000) {
|
||||
c = (c&1023)+64; d = str.charCodeAt(i++) & 1023;
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (240|((c>>8)&7))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|((c>>2)&63))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|((d>>6)&15)|(c&3))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|(d&63))) & 0xFF];
|
||||
} else {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (224|((c>>12)&15))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|((c>>6)&63))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|(c&63))) & 0xFF];
|
||||
}
|
||||
}
|
||||
return crc ^ -1;
|
||||
}
|
||||
CRC32.table = table;
|
||||
CRC32.bstr = crc32_bstr;
|
||||
CRC32.buf = crc32_buf;
|
||||
CRC32.str = crc32_str;
|
||||
})(typeof exports !== "undefined" && typeof DO_NOT_EXPORT_CRC === 'undefined' ? exports : CRC32);
|
||||
|
|
@ -0,0 +1,71 @@
|
|||
/* crc32.js (C) 2014 SheetJS -- http://sheetjs.com */
|
||||
/* vim: set ts=2: */
|
||||
var CRC32 = {};
|
||||
(function(CRC32) {
|
||||
CRC32.version = '0.1.0';
|
||||
/* see perf/crc32table.js */
|
||||
function signed_crc_table() {
|
||||
var c, table = new Array(256);
|
||||
|
||||
for(var n =0; n != 256; ++n){
|
||||
c = n;
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
table[n] = c;
|
||||
}
|
||||
|
||||
return table;
|
||||
}
|
||||
|
||||
var table = signed_crc_table();
|
||||
/* charCodeAt is the best approach for binary strings */
|
||||
function crc32_bstr(bstr) {
|
||||
for(var crc = -1, i = 0, L=bstr.length-1; i < L;) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
}
|
||||
if(i === L) crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
return crc ^ -1;
|
||||
}
|
||||
|
||||
function crc32_buf(buf) {
|
||||
for(var crc = -1, i = 0; i != buf.length; ++i) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ buf[i]) & 0xFF];
|
||||
}
|
||||
return crc ^ -1;
|
||||
}
|
||||
|
||||
/* much much faster to intertwine utf8 and crc */
|
||||
function crc32_str(str) {
|
||||
for(var crc = -1, i = 0, L=str.length, c, d; i < L;) {
|
||||
c = str.charCodeAt(i++);
|
||||
if(c < 0x80) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ c) & 0xFF];
|
||||
} else if(c < 0x800) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (192|((c>>6)&31))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|(c&63))) & 0xFF];
|
||||
} else if(c >= 0xD800 && c < 0xE000) {
|
||||
c = (c&1023)+64; d = str.charCodeAt(i++) & 1023;
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (240|((c>>8)&7))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|((c>>2)&63))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|((d>>6)&15)|(c&3))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|(d&63))) & 0xFF];
|
||||
} else {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (224|((c>>12)&15))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|((c>>6)&63))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|(c&63))) & 0xFF];
|
||||
}
|
||||
}
|
||||
return crc ^ -1;
|
||||
}
|
||||
CRC32.table = table;
|
||||
CRC32.bstr = crc32_bstr;
|
||||
CRC32.buf = crc32_buf;
|
||||
CRC32.str = crc32_str;
|
||||
})(typeof exports !== "undefined" && typeof DO_NOT_EXPORT_CRC === 'undefined' ? exports : CRC32);
|
||||
|
|
@ -0,0 +1,2 @@
|
|||
var assert = {};
|
||||
assert.equal = function(x,y) { if(x !== y) throw x + " !== " + y; };
|
||||
|
|
@ -0,0 +1,75 @@
|
|||
var bits = [
|
||||
[ "foobar", -1628037227, 1 ],
|
||||
[ "foo bar baz", -228401567, 1 ],
|
||||
[ "foo bar baz٪", 984445192 ],
|
||||
[ "foo bar baz٪☃", 140429620],
|
||||
[ "foo bar baz٪☃🍣", 1531648243]
|
||||
];
|
||||
if(typeof module !== "undefined") module.exports = bits;
|
||||
crc32table = [
|
||||
0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
|
||||
0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
|
||||
0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
|
||||
0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
|
||||
0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
|
||||
0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
|
||||
0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
|
||||
0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
|
||||
0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
|
||||
0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
|
||||
0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
|
||||
0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
|
||||
0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
|
||||
0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
|
||||
0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
|
||||
0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
|
||||
0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
|
||||
0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
|
||||
0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
|
||||
0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
|
||||
0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
|
||||
0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
|
||||
0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
|
||||
0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
|
||||
0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
|
||||
0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
|
||||
0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
|
||||
0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
|
||||
0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
|
||||
0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
|
||||
0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
|
||||
0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
|
||||
0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
|
||||
0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
|
||||
0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
|
||||
0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
|
||||
0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
|
||||
0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
|
||||
0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
|
||||
0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
|
||||
0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
|
||||
0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
|
||||
0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
|
||||
0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
|
||||
0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
|
||||
0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
|
||||
0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
|
||||
0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
|
||||
0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
|
||||
0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
|
||||
0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
|
||||
0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
|
||||
0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
|
||||
0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
|
||||
0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
|
||||
0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
|
||||
0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
|
||||
0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
|
||||
0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
|
||||
0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
|
||||
0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
|
||||
0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
|
||||
0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
|
||||
0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
|
||||
];
|
||||
if(typeof module !== 'undefined') module.exports = crc32table;
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<title>Mocha</title>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<link rel="stylesheet" href="mocha.css" />
|
||||
</head>
|
||||
<body>
|
||||
<div id="mocha"></div>
|
||||
<script src="crc32.js"></script>
|
||||
<script src="fakeassert.js"></script>
|
||||
<script src="mocha.js"></script>
|
||||
<script src="fixtures.js"></script>
|
||||
<script>mocha.setup('bdd')</script>
|
||||
<script src="test.js"></script>
|
||||
<script>
|
||||
mocha.run();
|
||||
</script>
|
||||
</body>
|
||||
</html>
|
||||
|
|
@ -0,0 +1,270 @@
|
|||
@charset "utf-8";
|
||||
|
||||
body {
|
||||
margin:0;
|
||||
}
|
||||
|
||||
#mocha {
|
||||
font: 20px/1.5 "Helvetica Neue", Helvetica, Arial, sans-serif;
|
||||
margin: 60px 50px;
|
||||
}
|
||||
|
||||
#mocha ul,
|
||||
#mocha li {
|
||||
margin: 0;
|
||||
padding: 0;
|
||||
}
|
||||
|
||||
#mocha ul {
|
||||
list-style: none;
|
||||
}
|
||||
|
||||
#mocha h1,
|
||||
#mocha h2 {
|
||||
margin: 0;
|
||||
}
|
||||
|
||||
#mocha h1 {
|
||||
margin-top: 15px;
|
||||
font-size: 1em;
|
||||
font-weight: 200;
|
||||
}
|
||||
|
||||
#mocha h1 a {
|
||||
text-decoration: none;
|
||||
color: inherit;
|
||||
}
|
||||
|
||||
#mocha h1 a:hover {
|
||||
text-decoration: underline;
|
||||
}
|
||||
|
||||
#mocha .suite .suite h1 {
|
||||
margin-top: 0;
|
||||
font-size: .8em;
|
||||
}
|
||||
|
||||
#mocha .hidden {
|
||||
display: none;
|
||||
}
|
||||
|
||||
#mocha h2 {
|
||||
font-size: 12px;
|
||||
font-weight: normal;
|
||||
cursor: pointer;
|
||||
}
|
||||
|
||||
#mocha .suite {
|
||||
margin-left: 15px;
|
||||
}
|
||||
|
||||
#mocha .test {
|
||||
margin-left: 15px;
|
||||
overflow: hidden;
|
||||
}
|
||||
|
||||
#mocha .test.pending:hover h2::after {
|
||||
content: '(pending)';
|
||||
font-family: arial, sans-serif;
|
||||
}
|
||||
|
||||
#mocha .test.pass.medium .duration {
|
||||
background: #c09853;
|
||||
}
|
||||
|
||||
#mocha .test.pass.slow .duration {
|
||||
background: #b94a48;
|
||||
}
|
||||
|
||||
#mocha .test.pass::before {
|
||||
content: '✓';
|
||||
font-size: 12px;
|
||||
display: block;
|
||||
float: left;
|
||||
margin-right: 5px;
|
||||
color: #00d6b2;
|
||||
}
|
||||
|
||||
#mocha .test.pass .duration {
|
||||
font-size: 9px;
|
||||
margin-left: 5px;
|
||||
padding: 2px 5px;
|
||||
color: #fff;
|
||||
-webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.2);
|
||||
-moz-box-shadow: inset 0 1px 1px rgba(0,0,0,.2);
|
||||
box-shadow: inset 0 1px 1px rgba(0,0,0,.2);
|
||||
-webkit-border-radius: 5px;
|
||||
-moz-border-radius: 5px;
|
||||
-ms-border-radius: 5px;
|
||||
-o-border-radius: 5px;
|
||||
border-radius: 5px;
|
||||
}
|
||||
|
||||
#mocha .test.pass.fast .duration {
|
||||
display: none;
|
||||
}
|
||||
|
||||
#mocha .test.pending {
|
||||
color: #0b97c4;
|
||||
}
|
||||
|
||||
#mocha .test.pending::before {
|
||||
content: '◦';
|
||||
color: #0b97c4;
|
||||
}
|
||||
|
||||
#mocha .test.fail {
|
||||
color: #c00;
|
||||
}
|
||||
|
||||
#mocha .test.fail pre {
|
||||
color: black;
|
||||
}
|
||||
|
||||
#mocha .test.fail::before {
|
||||
content: '✖';
|
||||
font-size: 12px;
|
||||
display: block;
|
||||
float: left;
|
||||
margin-right: 5px;
|
||||
color: #c00;
|
||||
}
|
||||
|
||||
#mocha .test pre.error {
|
||||
color: #c00;
|
||||
max-height: 300px;
|
||||
overflow: auto;
|
||||
}
|
||||
|
||||
/**
|
||||
* (1): approximate for browsers not supporting calc
|
||||
* (2): 42 = 2*15 + 2*10 + 2*1 (padding + margin + border)
|
||||
* ^^ seriously
|
||||
*/
|
||||
#mocha .test pre {
|
||||
display: block;
|
||||
float: left;
|
||||
clear: left;
|
||||
font: 12px/1.5 monaco, monospace;
|
||||
margin: 5px;
|
||||
padding: 15px;
|
||||
border: 1px solid #eee;
|
||||
max-width: 85%; /*(1)*/
|
||||
max-width: calc(100% - 42px); /*(2)*/
|
||||
word-wrap: break-word;
|
||||
border-bottom-color: #ddd;
|
||||
-webkit-border-radius: 3px;
|
||||
-webkit-box-shadow: 0 1px 3px #eee;
|
||||
-moz-border-radius: 3px;
|
||||
-moz-box-shadow: 0 1px 3px #eee;
|
||||
border-radius: 3px;
|
||||
}
|
||||
|
||||
#mocha .test h2 {
|
||||
position: relative;
|
||||
}
|
||||
|
||||
#mocha .test a.replay {
|
||||
position: absolute;
|
||||
top: 3px;
|
||||
right: 0;
|
||||
text-decoration: none;
|
||||
vertical-align: middle;
|
||||
display: block;
|
||||
width: 15px;
|
||||
height: 15px;
|
||||
line-height: 15px;
|
||||
text-align: center;
|
||||
background: #eee;
|
||||
font-size: 15px;
|
||||
-moz-border-radius: 15px;
|
||||
border-radius: 15px;
|
||||
-webkit-transition: opacity 200ms;
|
||||
-moz-transition: opacity 200ms;
|
||||
transition: opacity 200ms;
|
||||
opacity: 0.3;
|
||||
color: #888;
|
||||
}
|
||||
|
||||
#mocha .test:hover a.replay {
|
||||
opacity: 1;
|
||||
}
|
||||
|
||||
#mocha-report.pass .test.fail {
|
||||
display: none;
|
||||
}
|
||||
|
||||
#mocha-report.fail .test.pass {
|
||||
display: none;
|
||||
}
|
||||
|
||||
#mocha-report.pending .test.pass,
|
||||
#mocha-report.pending .test.fail {
|
||||
display: none;
|
||||
}
|
||||
#mocha-report.pending .test.pass.pending {
|
||||
display: block;
|
||||
}
|
||||
|
||||
#mocha-error {
|
||||
color: #c00;
|
||||
font-size: 1.5em;
|
||||
font-weight: 100;
|
||||
letter-spacing: 1px;
|
||||
}
|
||||
|
||||
#mocha-stats {
|
||||
position: fixed;
|
||||
top: 15px;
|
||||
right: 10px;
|
||||
font-size: 12px;
|
||||
margin: 0;
|
||||
color: #888;
|
||||
z-index: 1;
|
||||
}
|
||||
|
||||
#mocha-stats .progress {
|
||||
float: right;
|
||||
padding-top: 0;
|
||||
}
|
||||
|
||||
#mocha-stats em {
|
||||
color: black;
|
||||
}
|
||||
|
||||
#mocha-stats a {
|
||||
text-decoration: none;
|
||||
color: inherit;
|
||||
}
|
||||
|
||||
#mocha-stats a:hover {
|
||||
border-bottom: 1px solid #eee;
|
||||
}
|
||||
|
||||
#mocha-stats li {
|
||||
display: inline-block;
|
||||
margin: 0 5px;
|
||||
list-style: none;
|
||||
padding-top: 11px;
|
||||
}
|
||||
|
||||
#mocha-stats canvas {
|
||||
width: 40px;
|
||||
height: 40px;
|
||||
}
|
||||
|
||||
#mocha code .comment { color: #ddd; }
|
||||
#mocha code .init { color: #2f6fad; }
|
||||
#mocha code .string { color: #5890ad; }
|
||||
#mocha code .keyword { color: #8a6343; }
|
||||
#mocha code .number { color: #2f6fad; }
|
||||
|
||||
@media screen and (max-device-width: 480px) {
|
||||
#mocha {
|
||||
margin: 60px 0px;
|
||||
}
|
||||
|
||||
#mocha #stats {
|
||||
position: absolute;
|
||||
}
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,33 @@
|
|||
/* vim: set ts=2: */
|
||||
var X;
|
||||
if(typeof require !== 'undefined') {
|
||||
assert = require('assert');
|
||||
describe('source',function(){it('should load',function(){X=require('./');});});
|
||||
bits = require('./misc/bits.js');
|
||||
crc32table = require('./misc/table.js');
|
||||
} else { X = CRC32; }
|
||||
|
||||
describe('crc32 table', function() {
|
||||
it('should match fixed table', function() {
|
||||
var badness = 0;
|
||||
for(var i = 0; i != crc32table.length; ++i) {
|
||||
assert.equal(crc32table[i]|0, X.table[i]);
|
||||
if(crc32table[i] !== X.table[i]) ++badness;
|
||||
}
|
||||
assert.equal(badness, 128);
|
||||
});
|
||||
});
|
||||
|
||||
describe('crc32 bits', function() {
|
||||
bits.forEach(function(i) {
|
||||
var l = i[0].length;
|
||||
var msg = i[0];
|
||||
if(l > 20) i[0].substr(0,5) + "...(" + l + ")..." + i[0].substr(-5);
|
||||
it(msg, function() {
|
||||
if(i[2] === 1) assert.equal(X.bstr(i[0]), i[1]|0);
|
||||
assert.equal(X.str(i[0]), i[1]|0);
|
||||
if(typeof Buffer !== 'undefined') assert.equal(X.buf(new Buffer(i[0])), i[1]|0);
|
||||
});
|
||||
});
|
||||
});
|
||||
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
var bits = [
|
||||
[ "foobar", -1628037227, 1 ],
|
||||
[ "foo bar baz", -228401567, 1 ],
|
||||
[ "foo bar baz٪", 984445192 ],
|
||||
[ "foo bar baz٪☃", 140429620],
|
||||
[ "foo bar baz٪☃🍣", 1531648243]
|
||||
];
|
||||
if(typeof module !== "undefined") module.exports = bits;
|
||||
|
|
@ -0,0 +1,67 @@
|
|||
crc32table = [
|
||||
0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
|
||||
0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
|
||||
0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
|
||||
0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
|
||||
0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
|
||||
0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
|
||||
0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
|
||||
0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
|
||||
0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
|
||||
0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
|
||||
0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
|
||||
0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
|
||||
0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
|
||||
0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
|
||||
0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
|
||||
0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
|
||||
0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
|
||||
0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
|
||||
0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
|
||||
0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
|
||||
0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
|
||||
0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
|
||||
0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
|
||||
0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
|
||||
0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
|
||||
0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
|
||||
0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
|
||||
0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
|
||||
0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
|
||||
0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
|
||||
0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
|
||||
0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
|
||||
0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
|
||||
0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
|
||||
0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
|
||||
0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
|
||||
0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
|
||||
0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
|
||||
0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
|
||||
0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
|
||||
0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
|
||||
0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
|
||||
0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
|
||||
0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
|
||||
0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
|
||||
0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
|
||||
0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
|
||||
0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
|
||||
0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
|
||||
0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
|
||||
0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
|
||||
0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
|
||||
0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
|
||||
0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
|
||||
0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
|
||||
0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
|
||||
0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
|
||||
0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
|
||||
0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
|
||||
0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
|
||||
0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
|
||||
0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
|
||||
0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
|
||||
0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
|
||||
];
|
||||
if(typeof module !== 'undefined') module.exports = crc32table;
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
{
|
||||
"name": "crc-32",
|
||||
"version": "0.1.0",
|
||||
"author": "sheetjs",
|
||||
"description": "Pure-JS CRC-32",
|
||||
"keywords": [ "crc32", "checksum", "crc" ],
|
||||
"main": "./crc32",
|
||||
"devDependencies": {
|
||||
"mocha":"",
|
||||
"xlsjs":"",
|
||||
"uglify-js":"",
|
||||
"codepage":""
|
||||
},
|
||||
"repository": { "type":"git", "url":"git://github.com/SheetJS/js-crc32.git" },
|
||||
"scripts": {
|
||||
"pretest": "git submodule init && git submodule update",
|
||||
"test": "make test"
|
||||
},
|
||||
"config": {
|
||||
"blanket": {
|
||||
"pattern": "crc32.js"
|
||||
}
|
||||
},
|
||||
"bugs": { "url": "https://github.com/SheetJS/js-crc32/issues" },
|
||||
"license": "Apache-2.0",
|
||||
"engines": { "node": ">=0.8" }
|
||||
}
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
/* ssf.js (C) 2014 SheetJS -- http://sheetjs.com */
|
||||
var Benchmark = require('benchmark');
|
||||
var c = require('ansi')(process.stdout);
|
||||
|
||||
function test_end() { c.horizontalAbsolute(0).write("✓"); c.write('\n'); }
|
||||
|
||||
function suite_end() { console.log('Fastest is ' + this.filter('fastest').pluck('name')); }
|
||||
|
||||
function test_cycle(e) { c.horizontalAbsolute(0); c.eraseLine(); c.write("→ "+e.target); }
|
||||
|
||||
function BM(name) {
|
||||
if(!(this instanceof BM)) return new BM(name);
|
||||
console.log("--- " + name + " ---");
|
||||
this.suite = new Benchmark.Suite(name, { onComplete: suite_end });
|
||||
}
|
||||
|
||||
BM.prototype.run = function() { this.suite.run(); };
|
||||
|
||||
BM.prototype.add = function(msg, test) {
|
||||
this.suite.add(msg, {
|
||||
onCycle: test_cycle,
|
||||
onComplete: test_end,
|
||||
defer: false,
|
||||
fn: test
|
||||
});
|
||||
};
|
||||
|
||||
module.exports = BM;
|
||||
|
|
@ -0,0 +1,83 @@
|
|||
var table = require('../').table;
|
||||
|
||||
function strToArr(str) {
|
||||
// sweet hack to turn string into a 'byte' array
|
||||
return Array.prototype.map.call(str, function (c) {
|
||||
return c.charCodeAt(0);
|
||||
});
|
||||
}
|
||||
|
||||
function crcTable(arr, append) {
|
||||
var crc, i, l;
|
||||
|
||||
// if we're in append mode, don't reset crc
|
||||
// if arr is null or undefined, reset table and return
|
||||
if (typeof crcTable.crc === 'undefined' || !append || !arr) {
|
||||
crcTable.crc = 0 ^ -1;
|
||||
|
||||
if (!arr) {
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
// store in temp variable for minor speed gain
|
||||
crc = crcTable.crc;
|
||||
|
||||
for (i = 0, l = arr.length; i < l; i += 1) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ arr[i]) & 0xff];
|
||||
}
|
||||
|
||||
crcTable.crc = crc;
|
||||
|
||||
return crc ^ -1;
|
||||
}
|
||||
|
||||
function node_crc32(bstr) {
|
||||
return crcTable(strToArr(bstr));
|
||||
}
|
||||
|
||||
function sheetjs1(bstr) {
|
||||
for(var crc = -1, i = 0; i != bstr.length; ++i) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i)) & 0xFF];
|
||||
}
|
||||
return crc ^ -1;
|
||||
}
|
||||
|
||||
function sheetjs2(bstr) {
|
||||
for(var crc = -1, i = 0, L=bstr.length-1; i < L;) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
}
|
||||
if(i === L) crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
return crc ^ -1;
|
||||
}
|
||||
|
||||
function sheetjs3(bstr) {
|
||||
for(var crc = -1, i = 0, L=bstr.length-2; i < L;) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
}
|
||||
if(i === L++) crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
if(i === L++) crc = (crc >>> 8) ^ table[(crc ^ bstr.charCodeAt(i++)) & 0xFF];
|
||||
return crc ^ -1;
|
||||
}
|
||||
|
||||
var BM = require('./bm');
|
||||
var suite = new BM('binary string');
|
||||
|
||||
var foobar = "foobarbazqux";
|
||||
foobar += " " + foobar;
|
||||
foobar += " " + foobar;
|
||||
foobar += " " + foobar;
|
||||
foobar += " " + foobar;
|
||||
suite.add('npm crc32', function() { for(var j = 0; j != 1000; ++j) node_crc32(foobar); });
|
||||
suite.add('sheetjs 1', function() { for(var j = 0; j != 1000; ++j) sheetjs1(foobar); });
|
||||
suite.add('sheetjs 2', function() { for(var j = 0; j != 1000; ++j) sheetjs2(foobar); });
|
||||
suite.add('sheetjs 3', function() { for(var j = 0; j != 1000; ++j) sheetjs3(foobar); });
|
||||
suite.run();
|
||||
|
||||
var assert = require('assert');
|
||||
assert.equal(node_crc32(foobar), sheetjs1(foobar));
|
||||
assert.equal(node_crc32(foobar), sheetjs2(foobar));
|
||||
assert.equal(node_crc32(foobar), sheetjs3(foobar));
|
||||
|
|
@ -0,0 +1,86 @@
|
|||
var t=[], poly = 0xEDB88320;
|
||||
function node_crc32() {
|
||||
var c, n, k;
|
||||
|
||||
for (n = 0; n < 256; n += 1) {
|
||||
c = n;
|
||||
for (k = 0; k < 8; k += 1) {
|
||||
if (c & 1) {
|
||||
c = poly ^ (c >>> 1);
|
||||
} else {
|
||||
c = c >>> 1;
|
||||
}
|
||||
}
|
||||
t[n] = c >>> 0;
|
||||
}
|
||||
}
|
||||
|
||||
function node_pako() {
|
||||
var c, table = [];
|
||||
|
||||
for(var n =0; n < 256; n++){
|
||||
c = n;
|
||||
for(var k =0; k < 8; k++){
|
||||
c = ((c&1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
|
||||
}
|
||||
table[n] = c;
|
||||
}
|
||||
|
||||
return table;
|
||||
}
|
||||
|
||||
function sheetjs1() {
|
||||
var c, table = [];
|
||||
|
||||
for(var n =0; n != 256; ++n){
|
||||
c = n;
|
||||
c = ((c&1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
|
||||
table[n] = c;
|
||||
}
|
||||
|
||||
return table;
|
||||
}
|
||||
|
||||
function sheetjs2() {
|
||||
var c, table = new Array(256);
|
||||
|
||||
for(var n =0; n != 256; ++n){
|
||||
c = n;
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
|
||||
table[n] = c;
|
||||
}
|
||||
|
||||
return table;
|
||||
}
|
||||
|
||||
var BM = require('./bm');
|
||||
var suite = new BM('building crc32 table');
|
||||
|
||||
suite.add('npm crc32', function() { for(var j = 0; j != 1000; ++j) node_crc32(); });
|
||||
suite.add('npm pako', function() { for(var j = 0; j != 1000; ++j) node_pako(); });
|
||||
suite.add('sheetjs 1', function() { for(var j = 0; j != 1000; ++j) sheetjs1(); });
|
||||
suite.add('sheetjs 2', function() { for(var j = 0; j != 1000; ++j) sheetjs2(); });
|
||||
suite.run()
|
||||
|
||||
var assert = require('assert');
|
||||
var m1 = (node_pako());
|
||||
var m2 = (sheetjs1());
|
||||
var m3 = (sheetjs2());
|
||||
|
||||
assert.equal(m1.length, m2.length);
|
||||
assert.equal(m1.length, m3.length);
|
||||
for(var i = 0; i != m1.length; ++i) { assert.equal(m1[i], m2[i]); assert.equal(m1[i], m3[i]); }
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
#!/bin/bash
|
||||
|
||||
node perf/crc32table.js
|
||||
node perf/bstr.js
|
||||
node perf/utf8.js
|
||||
|
||||
|
|
@ -0,0 +1,47 @@
|
|||
var table = require('../').table;
|
||||
|
||||
function sheetjs1(utf8) {
|
||||
var buf = new Buffer(utf8);
|
||||
for(var crc = -1, i = 0; i != buf.length; ++i) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ buf[i]) & 0xFF];
|
||||
}
|
||||
return crc ^ -1;
|
||||
}
|
||||
|
||||
function sheetjs2(utf8) {
|
||||
for(var crc = -1, i = 0, L=utf8.length, c, d; i < L;) {
|
||||
c = utf8.charCodeAt(i++);
|
||||
if(c < 0x80) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ c) & 0xFF];
|
||||
} else if(c < 0x800) {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (192|((c>>6)&31))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|(c&63))) & 0xFF];
|
||||
} else if(c >= 0xD800 && c < 0xE000) {
|
||||
c = (c&1023)+64; d = utf8.charCodeAt(i++) & 1023;
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (240|((c>>8)&7))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|((c>>2)&63))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|((d>>6)&15)|(c&3))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|(d&63))) & 0xFF];
|
||||
} else {
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (224|((c>>12)&15))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|((c>>6)&63))) & 0xFF];
|
||||
crc = (crc >>> 8) ^ table[(crc ^ (128|(c&63))) & 0xFF];
|
||||
}
|
||||
}
|
||||
return crc ^ -1;
|
||||
}
|
||||
|
||||
var BM = require('./bm');
|
||||
var suite = new BM('unicode string');
|
||||
|
||||
var foobar = "foo bar baz٪☃🍣";
|
||||
foobar += " " + foobar;
|
||||
foobar += " " + foobar;
|
||||
foobar += " " + foobar;
|
||||
foobar += " " + foobar;
|
||||
suite.add('sheetjs 1', function() { for(var j = 0; j != 1000; ++j) sheetjs1(foobar); });
|
||||
suite.add('sheetjs 2', function() { for(var j = 0; j != 1000; ++j) sheetjs2(foobar); });
|
||||
suite.run()
|
||||
var assert = require('assert');
|
||||
assert.equal(sheetjs1(foobar), sheetjs2(foobar));
|
||||
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
/* vim: set ts=2: */
|
||||
var X;
|
||||
if(typeof require !== 'undefined') {
|
||||
assert = require('assert');
|
||||
describe('source',function(){it('should load',function(){X=require('./');});});
|
||||
bits = require('./misc/bits.js');
|
||||
crc32table = require('./misc/table.js');
|
||||
} else { X = CRC32; }
|
||||
|
||||
describe('crc32 table', function() {
|
||||
it('should match fixed table', function() {
|
||||
var badness = 0;
|
||||
for(var i = 0; i != crc32table.length; ++i) {
|
||||
assert.equal(crc32table[i]|0, X.table[i]);
|
||||
if(crc32table[i] !== X.table[i]) ++badness;
|
||||
}
|
||||
assert.equal(badness, 128);
|
||||
});
|
||||
});
|
||||
|
||||
describe('crc32 bits', function() {
|
||||
bits.forEach(function(i) {
|
||||
var l = i[0].length;
|
||||
var msg = i[0];
|
||||
if(l > 20) i[0].substr(0,5) + "...(" + l + ")..." + i[0].substr(-5);
|
||||
it(msg, function() {
|
||||
if(i[2] === 1) assert.equal(X.bstr(i[0]), i[1]|0);
|
||||
assert.equal(X.str(i[0]), i[1]|0);
|
||||
if(typeof Buffer !== 'undefined') assert.equal(X.buf(new Buffer(i[0])), i[1]|0);
|
||||
});
|
||||
});
|
||||
});
|
||||
|
||||
Loading…
Reference in New Issue