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version bump 1.1.3

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SheetJS 2024-04-23 16:12:51 -04:00
parent d07f3c99c7
commit bccf00766f
13 changed files with 247 additions and 70 deletions
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4
Makefile
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@ -21,7 +21,7 @@ $(TARGET) $(AUXTARGETS): %.js : %.flow.js
node -e 'process.stdout.write(require("fs").readFileSync("$<","utf8").replace(/^[ \t]*\/\*[:#][^*]*\*\/\s*(\n)?/gm,"").replace(/\/\*[:#][^*]*\*\//gm,""))' > $@
$(FLOWTARGET): $(DEPS)
voc $^
voc $^ || npx voc $^
.PHONY: clean
clean: ## Remove targets and build artifacts
@ -40,7 +40,7 @@ ctest: ## Build browser test (into ctest/ subdirectory)
.PHONY: ctestserv
ctestserv: ## Start a test server on port 8000
@cd ctest && python -mSimpleHTTPServer
@cd ctest && python -mSimpleHTTPServer || python3 -mhttp.server || npx -y http-server -p 8000 .
.PHONY: fullint
fullint: lint old-lint tslint flow mdlint ## Run all checks

22
README.md
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@ -13,16 +13,16 @@ replicate fraction formats.
### JS
With [`npm`](https://www.npmjs.org/package/frac):
For NodeJS:
```bash
$ npm install frac
$ npm i --save https://cdn.sheetjs.com/frac-1.1.3/frac-1.1.3.tgz
```
In the browser:
```html
<script src="frac.js"></script>
<script src="https://cdn.sheetjs.com/frac-1.1.3/package/dist/frac.min.js"></script>
```
The script will manipulate `module.exports` if available . This is not always
@ -104,7 +104,7 @@ The test TSV baselines in the `test_files` directory have four columns:
`make ctest` will use `browserify` to build a standalone script that can be run
in the web browser. The transform `brfs` must be installed locally. Browser
test script built against `browserfy@16.5.1` and `brfs@2.0.2`.
test script built against `browserify@16.5.1` and `brfs@2.0.2`.
`make pytest` will run the python tests against the system Python version.
@ -114,17 +114,3 @@ test script built against `browserfy@16.5.1` and `brfs@2.0.2`.
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.
## Badges
[![Build Status](https://saucelabs.com/browser-matrix/frac.svg)](https://saucelabs.com/u/frac)
[![Build Status](https://travis-ci.org/SheetJS/frac.svg?branch=master)](https://travis-ci.org/SheetJS/frac)
[![Coverage Status](http://img.shields.io/coveralls/SheetJS/frac/master.svg)](https://coveralls.io/r/SheetJS/frac?branch=master)
[![NPM Downloads](https://img.shields.io/npm/dt/frac.svg)](https://npmjs.org/package/frac)
[![Dependencies Status](https://david-dm.org/sheetjs/frac/status.svg)](https://david-dm.org/sheetjs/frac)
[![Analytics](https://ga-beacon.appspot.com/UA-36810333-1/SheetJS/frac?pixel)](https://github.com/SheetJS/frac)

8
ctest/frac.js
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@ -2,18 +2,16 @@
var frac = function frac(x, D, mixed) {
var n1 = Math.floor(x), d1 = 1;
var n2 = n1+1, d2 = 1;
if(x !== n1) while(d1 <= D && d2 <= D) {
if(x !== n1) while(d1 + d2 <= D) {
var m = (n1 + n2) / (d1 + d2);
if(x === m) {
if(d1 + d2 <= D) { d1+=d2; n1+=n2; d2=D+1; }
else if(d1 > d2) d2=D+1;
else d1=D+1;
if(d1 + d2 <= D) { d2 = (d1+=d2); n2 = (n1+=n2); }
break;
}
else if(x < m) { n2 = n1+n2; d2 = d1+d2; }
else { n1 = n1+n2; d1 = d1+d2; }
}
if(d1 > D) { d1 = d2; n1 = n2; }
if(n2 / d2 - x <= x - n1 / d1 ) { d1 = d2; n1 = n2; }
if(!mixed) return [0, n1, d1];
var q = Math.floor(n1/d1);
return [q, n1 - q*d1, d1];

21
ctest/test.js
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@ -3,18 +3,16 @@
var frac = function frac(x, D, mixed) {
var n1 = Math.floor(x), d1 = 1;
var n2 = n1+1, d2 = 1;
if(x !== n1) while(d1 <= D && d2 <= D) {
if(x !== n1) while(d1 + d2 <= D) {
var m = (n1 + n2) / (d1 + d2);
if(x === m) {
if(d1 + d2 <= D) { d1+=d2; n1+=n2; d2=D+1; }
else if(d1 > d2) d2=D+1;
else d1=D+1;
if(d1 + d2 <= D) { d2 = (d1+=d2); n2 = (n1+=n2); }
break;
}
else if(x < m) { n2 = n1+n2; d2 = d1+d2; }
else { n1 = n1+n2; d1 = d1+d2; }
}
if(d1 > D) { d1 = d2; n1 = n2; }
if(n2 / d2 - x <= x - n1 / d1 ) { d1 = d2; n1 = n2; }
if(!mixed) return [0, n1, d1];
var q = Math.floor(n1/d1);
return [q, n1 - q*d1, d1];
@ -43,6 +41,7 @@ frac.cont = function cont(x, D, mixed) {
if(typeof module !== 'undefined' && typeof DO_NOT_EXPORT_FRAC === 'undefined') module.exports = frac;
},{}],2:[function(require,module,exports){
/* eslint-env mocha, node */
var fs = require('fs'), assert = require('assert');
var frac;
describe('source', function() { it('should load', function() { frac = require('./'); }); });
@ -57,7 +56,7 @@ var xltestfiles=[
function xlline(o,j,m,w) {
it(j.toString(), function() {
var d, q, qq, f = 0.1;
var q0 = 0, q1 = 0, q2 = 0
var q0 = 0, q1 = 0, q2 = 0;
for(var i = j*w; i < m-3 && i < (j+1)*w; ++i) {
d = o[i].split("\t");
if(d.length < 3) continue;
@ -99,6 +98,8 @@ describe('mediant', function() {
cmp(frac(1.0,9,true), [1,0,1]);
cmp(frac(1.7,9,true), [1,5,7]);
cmp(frac(1.7,9,false),[0,12,7]);
cmp(frac(0.69,9,false),[0,2,3]);
cmp(frac(0.6969,9,false),[0,5,7]);
});
});
xltestfiles.forEach(function(x) {
@ -111,7 +112,7 @@ xltestfiles.forEach(function(x) {
},{"./":1,"assert":4,"fs":3}],3:[function(require,module,exports){
},{}],4:[function(require,module,exports){
(function (global){
(function (global){(function (){
'use strict';
var objectAssign = require('object-assign');
@ -619,7 +620,7 @@ var objectKeys = Object.keys || function (obj) {
return keys;
};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"object-assign":8,"util/":7}],5:[function(require,module,exports){
if (typeof Object.create === 'function') {
// implementation from standard node.js 'util' module
@ -653,7 +654,7 @@ module.exports = function isBuffer(arg) {
&& typeof arg.readUInt8 === 'function';
}
},{}],7:[function(require,module,exports){
(function (process,global){
(function (process,global){(function (){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
@ -1241,7 +1242,7 @@ function hasOwnProperty(obj, prop) {
return Object.prototype.hasOwnProperty.call(obj, prop);
}
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./support/isBuffer":6,"_process":9,"inherits":5}],8:[function(require,module,exports){
/*
object-assign

190
dist/LICENSE vendored
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@ -1,4 +1,192 @@
Copyright (C) 2012-present SheetJS
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8
dist/frac.js vendored
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@ -2,18 +2,16 @@
var frac = function frac(x, D, mixed) {
var n1 = Math.floor(x), d1 = 1;
var n2 = n1+1, d2 = 1;
if(x !== n1) while(d1 <= D && d2 <= D) {
if(x !== n1) while(d1 + d2 <= D) {
var m = (n1 + n2) / (d1 + d2);
if(x === m) {
if(d1 + d2 <= D) { d1+=d2; n1+=n2; d2=D+1; }
else if(d1 > d2) d2=D+1;
else d1=D+1;
if(d1 + d2 <= D) { d2 = (d1+=d2); n2 = (n1+=n2); }
break;
}
else if(x < m) { n2 = n1+n2; d2 = d1+d2; }
else { n1 = n1+n2; d1 = d1+d2; }
}
if(d1 > D) { d1 = d2; n1 = n2; }
if(n2 / d2 - x <= x - n1 / d1 ) { d1 = d2; n1 = n2; }
if(!mixed) return [0, n1, d1];
var q = Math.floor(n1/d1);
return [q, n1 - q*d1, d1];

2
dist/frac.min.js vendored
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@ -1,2 +1,2 @@
/* frac.js (C) 2012-present SheetJS -- http://sheetjs.com */
var frac=function frac(x,D,mixed){var n1=Math.floor(x),d1=1;var n2=n1+1,d2=1;if(x!==n1)while(d1<=D&&d2<=D){var m=(n1+n2)/(d1+d2);if(x===m){if(d1+d2<=D){d1+=d2;n1+=n2;d2=D+1}else if(d1>d2)d2=D+1;else d1=D+1;break}else if(x<m){n2=n1+n2;d2=d1+d2}else{n1=n1+n2;d1=d1+d2}}if(d1>D){d1=d2;n1=n2}if(!mixed)return[0,n1,d1];var q=Math.floor(n1/d1);return[q,n1-q*d1,d1]};frac.cont=function cont(x,D,mixed){var sgn=x<0?-1:1;var B=x*sgn;var P_2=0,P_1=1,P=0;var Q_2=1,Q_1=0,Q=0;var A=Math.floor(B);while(Q_1<D){A=Math.floor(B);P=A*P_1+P_2;Q=A*Q_1+Q_2;if(B-A<5e-8)break;B=1/(B-A);P_2=P_1;P_1=P;Q_2=Q_1;Q_1=Q}if(Q>D){if(Q_1>D){Q=Q_2;P=P_2}else{Q=Q_1;P=P_1}}if(!mixed)return[0,sgn*P,Q];var q=Math.floor(sgn*P/Q);return[q,sgn*P-q*Q,Q]};if(typeof module!=="undefined"&&typeof DO_NOT_EXPORT_FRAC==="undefined")module.exports=frac;
var frac=function frac(x,D,mixed){var n1=Math.floor(x),d1=1;var n2=n1+1,d2=1;if(x!==n1)while(d1+d2<=D){var m=(n1+n2)/(d1+d2);if(x===m){if(d1+d2<=D){d2=d1+=d2;n2=n1+=n2}break}else if(x<m){n2=n1+n2;d2=d1+d2}else{n1=n1+n2;d1=d1+d2}}if(n2/d2-x<=x-n1/d1){d1=d2;n1=n2}if(!mixed)return[0,n1,d1];var q=Math.floor(n1/d1);return[q,n1-q*d1,d1]};frac.cont=function cont(x,D,mixed){var sgn=x<0?-1:1;var B=x*sgn;var P_2=0,P_1=1,P=0;var Q_2=1,Q_1=0,Q=0;var A=Math.floor(B);while(Q_1<D){A=Math.floor(B);P=A*P_1+P_2;Q=A*Q_1+Q_2;if(B-A<5e-8)break;B=1/(B-A);P_2=P_1;P_1=P;Q_2=Q_1;Q_1=Q}if(Q>D){if(Q_1>D){Q=Q_2;P=P_2}else{Q=Q_1;P=P_1}}if(!mixed)return[0,sgn*P,Q];var q=Math.floor(sgn*P/Q);return[q,sgn*P-q*Q,Q]};if(typeof module!=="undefined"&&typeof DO_NOT_EXPORT_FRAC==="undefined")module.exports=frac;

2
dist/frac.min.map vendored
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@ -1 +1 @@
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8
frac.flow.js
View File

@ -2,18 +2,16 @@
var frac = function frac(x/*:number*/, D/*:number*/, mixed/*:?boolean*/)/*:Array<number>*/ {
var n1 = Math.floor(x), d1 = 1;
var n2 = n1+1, d2 = 1;
if(x !== n1) while(d1 <= D && d2 <= D) {
if(x !== n1) while(d1 + d2 <= D) {
var m = (n1 + n2) / (d1 + d2);
if(x === m) {
if(d1 + d2 <= D) { d1+=d2; n1+=n2; d2=D+1; }
else if(d1 > d2) d2=D+1;
else d1=D+1;
if(d1 + d2 <= D) { d2 = (d1+=d2); n2 = (n1+=n2); }
break;
}
else if(x < m) { n2 = n1+n2; d2 = d1+d2; }
else { n1 = n1+n2; d1 = d1+d2; }
}
if(d1 > D) { d1 = d2; n1 = n2; }
if(n2 / d2 - x <= x - n1 / d1 ) { d1 = d2; n1 = n2; }
if(!mixed) return [0, n1, d1];
var q = Math.floor(n1/d1);
return [q, n1 - q*d1, d1];

8
frac.js
View File

@ -2,18 +2,16 @@
var frac = function frac(x, D, mixed) {
var n1 = Math.floor(x), d1 = 1;
var n2 = n1+1, d2 = 1;
if(x !== n1) while(d1 <= D && d2 <= D) {
if(x !== n1) while(d1 + d2 <= D) {
var m = (n1 + n2) / (d1 + d2);
if(x === m) {
if(d1 + d2 <= D) { d1+=d2; n1+=n2; d2=D+1; }
else if(d1 > d2) d2=D+1;
else d1=D+1;
if(d1 + d2 <= D) { d2 = (d1+=d2); n2 = (n1+=n2); }
break;
}
else if(x < m) { n2 = n1+n2; d2 = d1+d2; }
else { n1 = n1+n2; d1 = d1+d2; }
}
if(d1 > D) { d1 = d2; n1 = n2; }
if(n2 / d2 - x <= x - n1 / d1 ) { d1 = d2; n1 = n2; }
if(!mixed) return [0, n1, d1];
var q = Math.floor(n1/d1);
return [q, n1 - q*d1, d1];

33
frac.md
View File

@ -36,11 +36,11 @@ the numerators and denominators separately:
var n2 = n1+1, d2 = 1;
```
If `x` is not integral, we bisect using mediants until a denominator exceeds
our target:
If `x` is not integral, we bisect using mediants until a the next denominator
exceeds our target:
```
if(x !== n1) while(d1 <= D && d2 <= D) {
if(x !== n1) while(d1 + d2 <= D) {
```
The mediant is the sum of the numerators divided by the sum of denominators:
@ -55,9 +55,7 @@ denominator)
```
if(x === m) {
if(d1 + d2 <= D) { d1+=d2; n1+=n2; d2=D+1; }
else if(d1 > d2) d2=D+1;
else d1=D+1;
if(d1 + d2 <= D) { d2 = (d1+=d2); n2 = (n1+=n2); }
break;
}
```
@ -70,11 +68,17 @@ Otherwise shrink the range:
}
```
At this point, `d1 > D` or `d2 > D` (but not both -- keep track of how `d1` and
`d2` change). So we merely return the desired values:
At this point, the optimal fraction is either `n1 / d1` or `n2 / d2`. The deltas
should be compared to determine the closer fraction. For this function, we will
store the results in `n1` and `d1`:
```
if(n2 / d2 - x <= x - n1 / d1 ) { d1 = d2; n1 = n2; }
```
The rest of the function determines which fraction to return:
```
if(d1 > D) { d1 = d2; n1 = n2; }
if(!mixed) return [0, n1, d1];
var q = Math.floor(n1/d1);
return [q, n1 - q*d1, d1];
@ -173,6 +177,7 @@ if(typeof module !== 'undefined' && typeof DO_NOT_EXPORT_FRAC === 'undefined') m
# Tests
```js>test.js
/* eslint-env mocha, node */
var fs = require('fs'), assert = require('assert');
var frac;
describe('source', function() { it('should load', function() { frac = require('./'); }); });
@ -187,7 +192,7 @@ var xltestfiles=[
function xlline(o,j,m,w) {
it(j.toString(), function() {
var d, q, qq, f = 0.1;
var q0 = 0, q1 = 0, q2 = 0
var q0 = 0, q1 = 0, q2 = 0;
for(var i = j*w; i < m-3 && i < (j+1)*w; ++i) {
d = o[i].split("\t");
if(d.length < 3) continue;
@ -229,6 +234,8 @@ describe('mediant', function() {
cmp(frac(1.0,9,true), [1,0,1]);
cmp(frac(1.7,9,true), [1,5,7]);
cmp(frac(1.7,9,false),[0,12,7]);
cmp(frac(0.69,9,false),[0,2,3]);
cmp(frac(0.6969,9,false),[0,5,7]);
});
});
xltestfiles.forEach(function(x) {
@ -244,7 +251,7 @@ xltestfiles.forEach(function(x) {
```json>package.json
{
"name": "frac",
"version": "1.1.2",
"version": "1.1.3",
"author": "SheetJS",
"description": "Rational approximation with bounded denominator",
"keywords": [ "math", "fraction", "rational", "approximation" ],
@ -262,7 +269,7 @@ xltestfiles.forEach(function(x) {
"dtslint": "^0.1.2",
"typescript": "2.2.0"
},
"repository": { "type": "git", "url": "git://github.com/SheetJS/frac.git" },
"repository": { "type": "git", "url": "https://git.sheetjs.com/SheetJS/frac.git" },
"scripts": {
"test": "make test",
"build": "make",
@ -275,7 +282,7 @@ xltestfiles.forEach(function(x) {
}
},
"homepage": "http://sheetjs.com/opensource",
"bugs": { "url": "https://github.com/SheetJS/frac/issues" },
"bugs": { "url": "https://git.sheetjs.com/SheetJS/frac/issues" },
"license": "Apache-2.0",
"engines": { "node": ">=0.8" }
}

6
package.json
View File

@ -1,6 +1,6 @@
{
"name": "frac",
"version": "1.1.2",
"version": "1.1.3",
"author": "SheetJS",
"description": "Rational approximation with bounded denominator",
"keywords": [ "math", "fraction", "rational", "approximation" ],
@ -18,7 +18,7 @@
"dtslint": "^0.1.2",
"typescript": "2.2.0"
},
"repository": { "type": "git", "url": "git://github.com/SheetJS/frac.git" },
"repository": { "type": "git", "url": "https://git.sheetjs.com/SheetJS/frac.git" },
"scripts": {
"test": "make test",
"build": "make",
@ -31,7 +31,7 @@
}
},
"homepage": "http://sheetjs.com/opensource",
"bugs": { "url": "https://github.com/SheetJS/frac/issues" },
"bugs": { "url": "https://git.sheetjs.com/SheetJS/frac/issues" },
"license": "Apache-2.0",
"engines": { "node": ">=0.8" }
}

5
test.js
View File

@ -1,3 +1,4 @@
/* eslint-env mocha, node */
var fs = require('fs'), assert = require('assert');
var frac;
describe('source', function() { it('should load', function() { frac = require('./'); }); });
@ -12,7 +13,7 @@ var xltestfiles=[
function xlline(o,j,m,w) {
it(j.toString(), function() {
var d, q, qq, f = 0.1;
var q0 = 0, q1 = 0, q2 = 0
var q0 = 0, q1 = 0, q2 = 0;
for(var i = j*w; i < m-3 && i < (j+1)*w; ++i) {
d = o[i].split("\t");
if(d.length < 3) continue;
@ -54,6 +55,8 @@ describe('mediant', function() {
cmp(frac(1.0,9,true), [1,0,1]);
cmp(frac(1.7,9,true), [1,5,7]);
cmp(frac(1.7,9,false),[0,12,7]);
cmp(frac(0.69,9,false),[0,2,3]);
cmp(frac(0.6969,9,false),[0,5,7]);
});
});
xltestfiles.forEach(function(x) {