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version bump 0.3.0: support for standard formats

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Many cases are hard-coded and should be parsed before version 1.0
This commit is contained in:
SheetJS 2013-12-16 10:36:22 -05:00
parent e1b753f797
commit fc9835e819
6 changed files with 225 additions and 102 deletions
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2
package.json
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@ -1,6 +1,6 @@
{
"name": "ssf",
"version": "0.2.3",
"version": "0.3.0",
"author": "SheetJS",
"description": "pure-JS library to format data using ECMA-376 spreadsheet Format Codes",
"keywords": [ "format", "sprintf", "spreadsheet" ],

84
ssf.js
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@ -1,6 +1,6 @@
/* ssf.js (C) 2013 SheetJS -- http://sheetjs.com */
var SSF = {};
(function(SSF){
var make_ssf = function(SSF){
String.prototype.reverse=function(){return this.split("").reverse().join("");};
var _strrev = function(x) { return String(x).reverse(); };
function fill(c,l) { return new Array(l+1).join(c); }
@ -22,7 +22,7 @@ var table_fmt = {
11: '0.00E+00',
12: '# ?/?',
13: '# ??/??',
14: 'mm/dd/yy',
14: 'm/d/yy',
15: 'd-mmm-yy',
16: 'd-mmm',
17: 'mmm-yy',
@ -86,10 +86,18 @@ var frac = function(x, D, mixed) {
var general_fmt = function(v) {
if(typeof v === 'boolean') return v ? "TRUE" : "FALSE";
if(typeof v === 'number') {
return v.toPrecision(10).replace(/\.0*$/,"").replace(/\.(.*[^0])0*$/,".$1");
var o, V = v < 0 ? -v : v;
if(V >= 0.1 && V < 1) o = v.toPrecision(9);
else if(V >= 0.01 && V < 0.1) o = v.toPrecision(8);
else if(V >= 0.001 && V < 0.01) o = v.toPrecision(7);
else if(V > Math.pow(10,-9) && V < Math.pow(10,10)) {
o = v.toPrecision(10); if(o.length > 11+(v<0?1:0)) o = v.toExponential(5);
}
else o = v.toPrecision(6);
return o.replace("e","E").replace(/\.0*$/,"").replace(/\.(.*[^0])0*$/,".$1").replace(/(E[+-])([0-9])$/,"$1"+"0"+"$2");
}
if(typeof v === 'string') return v;
throw "unsupport value in General format: " + v;
throw "unsupported value in General format: " + v;
};
SSF._general = general_fmt;
var parse_date_code = function parse_date_code(v,opts) {
@ -97,6 +105,7 @@ var parse_date_code = function parse_date_code(v,opts) {
var dout=[], out={D:date, T:time, u:86400*(v-date)-time}; fixopts(opts = (opts||{}));
if(opts.date1904) date += 1462;
if(date === 60) {dout = [1900,2,29]; dow=3;}
else if(date === 0) {dout = [1900,1,0]; dow=6;}
else {
if(date > 60) --date;
/* 1 = Jan 1 1900 */
@ -168,31 +177,42 @@ var write_date = function(type, fmt, val) {
}
};
String.prototype.reverse = function() { return this.split("").reverse().join(""); };
var commaify = function(s) { return s.reverse().replace(/.../g,"$&,").reverse(); };
var commaify = function(s) { return s.reverse().replace(/.../g,"$&,").reverse().replace(/^,/,""); };
var write_num = function(type, fmt, val) {
if(type === '(') {
var ffmt = fmt.replace(/\( */,"").replace(/ \)/,"").replace(/\)/,"");
var ffmt = fmt.replace(/\( */,"").replace(/ \)/,"").replace(/\)/,"");
if(val >= 0) return write_num('n', ffmt, val);
return '(' + write_num('n', ffmt, -val) + ')';
}
var mul = 0;
var mul = 0, o;
fmt = fmt.replace(/%/g,function(x) { mul++; return ""; });
if(mul !== 0) return write_num(type, fmt, val * Math.pow(10,2*mul)) + fill("%",mul);
if(fmt.indexOf("E") > -1) {
var o = val.toExponential(fmt.indexOf("E") - fmt.indexOf(".") - 1);
var idx = fmt.indexOf("E") - fmt.indexOf(".") - 1;
if(fmt == '##0.0E+0') {
var ee = Number(val.toExponential(0).substr(3))%3;
o = (val/Math.pow(10,ee%3)).toPrecision(idx+1+(ee%3)).replace(/^([+-]?)([0-9]*)\.([0-9]*)[Ee]/,function($$,$1,$2,$3) { return $1 + $2 + $3.substr(0,ee) + "." + $3.substr(ee) + "E"; });
} else o = val.toExponential(idx);
if(fmt.match(/E\+00$/) && o.match(/e[+-][0-9]$/)) o = o.substr(0,o.length-1) + "0" + o[o.length-1];
if(fmt.match(/E\-/) && o.match(/e\+/)) o = o.replace(/e\+/,"e");
return o.replace("e","E");
}
var ff, aval = val < 0 ? -val : val, sign = val < 0 ? "-" : "";
if(fmt[0] === "$") return "$"+write_num(type,fmt.substr(fmt[1]==' '?2:1),val);
var r, ff, aval = val < 0 ? -val : val, sign = val < 0 ? "-" : "";
switch(fmt) {
case "0": return Math.round(val);
case "0.00": return Math.round(val*100)/100;
case "0.0": o = Math.round(val*10);
return String(o/10).replace(/^([^\.]+)$/,"$1.0").replace(/\.$/,".0");
case "0.00": o = Math.round(val*100);
return String(o/100).replace(/^([^\.]+)$/,"$1.00").replace(/\.$/,".00").replace(/\.([0-9])$/,".$1"+"0");
case "0.000": o = Math.round(val*1000);
return String(o/1000).replace(/^([^\.]+)$/,"$1.000").replace(/\.$/,".000").replace(/\.([0-9])$/,".$1"+"00").replace(/\.([0-9][0-9])$/,".$1"+"0");
case "#,##0": return sign + commaify(String(Math.round(aval)));
case "#,##0.00": return val < 0 ? "-" + write_num(type, fmt, -val) : commaify(String(Math.floor(val))) + "." + Math.round((val-Math.floor(val))*100);
case "# ? / ?": ff = frac(val<0?-val:val, 10, true); return (val<0?"-":"") + ff[0] + " " + ff[1] + "/" + ff[2];
case "# ?? / ??": ff = frac(val<0?-val:val, 100, true); return (val<0?"-":"") + ff[0] + " " + ff[1] + "/" + ff[2];
default:
case "#,##0.0": r = Math.round((val-Math.floor(val))*10); return val < 0 ? "-" + write_num(type, fmt, -val) : commaify(String(Math.floor(val))) + "." + r;
case "#,##0.00": r = Math.round((val-Math.floor(val))*100); return val < 0 ? "-" + write_num(type, fmt, -val) : commaify(String(Math.floor(val))) + "." + (r < 10 ? "0"+r:r);
case "# ? / ?": ff = frac(val<0?-val:val, 10, true); return (val<0?"-":"") + ff[0] + " " + ff[1] + "/" + ff[2];
case "# ?? / ??": ff = frac(val<0?-val:val, 100, true); return (val<0?"-":"") + ff[0] + " " + ff[1] + "/" + ff[2];
default:
}
throw new Error("unsupported format |" + fmt + "|");
};
@ -212,7 +232,7 @@ function split_fmt(fmt) {
return out;
}
SSF._split = split_fmt;
function eval_fmt(fmt, v, opts) {
function eval_fmt(fmt, v, opts, flen) {
var out = [], o = "", i = 0, c = "", lst='t', q = {}, dt;
fixopts(opts = (opts || {}));
var hr='H';
@ -220,9 +240,11 @@ function eval_fmt(fmt, v, opts) {
while(i < fmt.length) {
switch((c = fmt[i])) {
case '"': /* Literal text */
for(o="";fmt[++i] !== '"';) o += fmt[(fmt[i] === '\\' ? ++i : i)];
out.push({t:'t', v:o}); break;
case '\\': out.push({t:'t', v:fmt[++i]}); ++i; break;
for(o="";fmt[++i] !== '"';) o += fmt[i];
out.push({t:'t', v:o}); ++i; break;
case '\\': var w = fmt[++i], t = "()".indexOf(w) === -1 ? 't' : w;
out.push({t:t, v:w}); ++i; break;
case '_': out.push({t:'t', v:" "}); i+=2; break;
case '@': /* Text Placeholder */
out.push({t:'T', v:v}); ++i; break;
/* Dates */
@ -244,7 +266,7 @@ function eval_fmt(fmt, v, opts) {
case '[': /* TODO: Fix this -- ignore all conditionals and formatting */
o = c;
while(fmt[i++] !== ']') o += fmt[i];
if(o == "[h]") out.push({t:'Z', v:o});
if(o == "[h]") out.push({t:'Z', v:o});
break;
/* Numbers */
case '0': case '#':
@ -253,8 +275,8 @@ function eval_fmt(fmt, v, opts) {
case '?':
o = fmt[i]; while(fmt[++i] === c) o+=c;
q={t:c, v:o}; out.push(q); lst = c; break;
case '(': case ')': out.push({t:c,v:c}); ++i; break;
case '*': ++i; if(fmt[i] == ' ') ++i; break; // **
case '(': case ')': out.push({t:(flen===1?'t':c),v:c}); ++i; break;
case ' ': out.push({t:c,v:c}); ++i; break;
default:
if("$-+/():!^&'~{}<>=".indexOf(c) === -1)
@ -281,12 +303,12 @@ function eval_fmt(fmt, v, opts) {
out[i].t = 't'; break;
case 'n': case '(':
var jj = i+1;
while(out[jj] && (out[jj].t == '?' || out[jj].t == ' ' || out[i].t == '(' && (out[jj].t == ')' || out[jj].t == 'n') || out[jj].t == 't' && out[jj].v == '/')) {
while(out[jj] && (out[jj].t == '?' || out[jj].t == ' ' || out[i].t == '(' && (out[jj].t == ')' || out[jj].t == 'n') || out[jj].t == 't' && (out[jj].v == '/' || out[jj].v == '$'))) {
if(out[jj].v!==' ') out[i].v += ' ' + out[jj].v;
delete out[jj]; ++jj;
}
out[i].v = write_num(out[i].t, out[i].v, v);
out[i].t = 't';
out[i].t = 't';
i = jj; break;
default: throw "unrecognized type " + out[i].t;
}
@ -295,29 +317,31 @@ function eval_fmt(fmt, v, opts) {
return out.map(function(x){return x.v;}).join("");
}
SSF._eval = eval_fmt;
function choose_fmt(fmt, v) {
function choose_fmt(fmt, v, o) {
if(typeof fmt === 'number') fmt = table_fmt[fmt];
if(typeof fmt === "string") fmt = split_fmt(fmt);
var l = fmt.length;
switch(fmt.length) {
case 1: fmt = [fmt[0], fmt[0], fmt[0], "@"]; break;
case 2: fmt = [fmt[0], fmt[1], fmt[0], "@"]; break;
case 4: break;
case 4: break;
default: throw "cannot find right format for |" + fmt + "|";
}
if(typeof v !== "number") return fmt[3];
return v > 0 ? fmt[0] : v < 0 ? fmt[1] : fmt[2];
if(typeof v !== "number") return [fmt.length, fmt[3]];
return [l, v > 0 ? fmt[0] : v < 0 ? fmt[1] : fmt[2]];
}
var format = function format(fmt,v,o) {
fixopts(o = (o||{}));
if(fmt === 0) return general_fmt(v, o);
if(typeof fmt === 'number') fmt = table_fmt[fmt];
fmt = table_fmt[fmt];
var f = choose_fmt(fmt, v, o);
return eval_fmt(f, v, o);
return eval_fmt(f[1], v, o, f[0]);
};
SSF._choose = choose_fmt;
SSF._table = table_fmt;
SSF.load = function(fmt, idx) { table_fmt[idx] = fmt; };
SSF.format = format;
})(SSF);
};
make_ssf(SSF);

147
ssf.md
View File

@ -139,7 +139,15 @@ For numbers, try to display up to 11 digits of the number (the original code
```
if(typeof v === 'number') {
return v.toPrecision(10).replace(/\.0*$/,"").replace(/\.(.*[^0])0*$/,".$1");
var o, V = v < 0 ? -v : v;
if(V >= 0.1 && V < 1) o = v.toPrecision(9);
else if(V >= 0.01 && V < 0.1) o = v.toPrecision(8);
else if(V >= 0.001 && V < 0.01) o = v.toPrecision(7);
else if(V > Math.pow(10,-9) && V < Math.pow(10,10)) {
o = v.toPrecision(10); if(o.length > 11+(v<0?1:0)) o = v.toExponential(5);
}
else o = v.toPrecision(6);
return o.replace("e","E").replace(/\.0*$/,"").replace(/\.(.*[^0])0*$/,".$1").replace(/(E[+-])([0-9])$/,"$1"+"0"+"$2");
}
```
@ -149,8 +157,10 @@ For strings, just return the text as-is:
if(typeof v === 'string') return v;
```
Anything else is bad:
```
throw "unsupport value in General format: " + v;
throw "unsupported value in General format: " + v;
};
SSF._general = general_fmt;
```
@ -173,12 +183,12 @@ var table_fmt = {
13: '# ??/??',
```
Now Excel and other formats treat code 14 as `mm/dd/yy` (with slashes). Given
Now Excel and other formats treat code 14 as `m/d/yy` (with slashes). Given
that the spec gives no internationalization considerations, erring on the side
of the applications makes sense here:
```
14: 'mm/dd/yy',
14: 'm/d/yy',
15: 'd-mmm-yy',
16: 'd-mmm',
17: 'mmm-yy',
@ -261,6 +271,24 @@ These test cases were manually generated in Excel 2011 [value, code, result]:
[-12345.6789, 48, "-12.3E+3"],
[-12345.6789, 49, "-12345.6789"],
```
These test cases emerged from formula_stress_test.xls:
```
[11.666666666666666, 0, "11.66666667"],
[5.057996968497839, 0, "5.057996968"],
[4.380353866983808, 0, "4.380353867"],
[12.333333333333343, 0, "12.33333333"],
[-0.000006211546860868111, 0, "-6.21155E-06"],
```
Finally, these are fairly obvious:
```
[true, 0, "TRUE"],
[false, 0, "FALSE"],
[0, 0, "0"]
]
```
@ -325,10 +353,12 @@ Due to a bug in Lotus 1-2-3 which was propagated by Excel and other variants,
the year 1900 is recognized as a leap year. JS has no way of representing that
abomination as a `Date`, so the easiest way is to store the data as a tuple.
February 29, 1900 (date `60`) is recognized as a Wednesday.
February 29, 1900 (date `60`) is recognized as a Wednesday. Date `0` is treated
as January 0, 1900 rather than December 31, 1899.
```
if(date === 60) {dout = [1900,2,29]; dow=3;}
else if(date === 0) {dout = [1900,1,0]; dow=6;}
```
For the other dates, using the JS date mechanism suffices.
@ -371,7 +401,7 @@ SSF.parse_date_code = parse_date_code;
```js>tmp/number.js
String.prototype.reverse = function() { return this.split("").reverse().join(""); };
var commaify = function(s) { return s.reverse().replace(/.../g,"$&,").reverse(); };
var commaify = function(s) { return s.reverse().replace(/.../g,"$&,").reverse().replace(/^,/,""); };
var write_num = function(type, fmt, val) {
```
@ -379,7 +409,7 @@ For parentheses, explicitly resolve the sign issue:
```js>tmp/number.js
if(type === '(') {
var ffmt = fmt.replace(/\( */,"").replace(/ \)/,"").replace(/\)/,"");
var ffmt = fmt.replace(/\( */,"").replace(/ \)/,"").replace(/\)/,"");
if(val >= 0) return write_num('n', ffmt, val);
return '(' + write_num('n', ffmt, -val) + ')';
}
@ -389,7 +419,7 @@ For parentheses, explicitly resolve the sign issue:
Percentage values should be physically shifted:
```js>tmp/number.js
var mul = 0;
var mul = 0, o;
fmt = fmt.replace(/%/g,function(x) { mul++; return ""; });
if(mul !== 0) return write_num(type, fmt, val * Math.pow(10,2*mul)) + fill("%",mul);
```
@ -398,30 +428,51 @@ For exponents, get the exponent and mantissa and format them separately:
```
if(fmt.indexOf("E") > -1) {
var o = val.toExponential(fmt.indexOf("E") - fmt.indexOf(".") - 1);
var idx = fmt.indexOf("E") - fmt.indexOf(".") - 1;
```
For the special case of engineering notation, "shift" the decimal:
```
if(fmt == '##0.0E+0') {
var ee = Number(val.toExponential(0).substr(3))%3;
o = (val/Math.pow(10,ee%3)).toPrecision(idx+1+(ee%3)).replace(/^([+-]?)([0-9]*)\.([0-9]*)[Ee]/,function($$,$1,$2,$3) { return $1 + $2 + $3.substr(0,ee) + "." + $3.substr(ee) + "E"; });
} else o = val.toExponential(idx);
if(fmt.match(/E\+00$/) && o.match(/e[+-][0-9]$/)) o = o.substr(0,o.length-1) + "0" + o[o.length-1];
if(fmt.match(/E\-/) && o.match(/e\+/)) o = o.replace(/e\+/,"e");
return o.replace("e","E");
}
```
TODO: localize the currency:
```
if(fmt[0] === "$") return "$"+write_num(type,fmt.substr(fmt[1]==' '?2:1),val);
```
The default cases are hard-coded. TODO: actually parse them
```js>tmp/number.js
var ff, aval = val < 0 ? -val : val, sign = val < 0 ? "-" : "";
var r, ff, aval = val < 0 ? -val : val, sign = val < 0 ? "-" : "";
switch(fmt) {
case "0": return Math.round(val);
case "0.00": return Math.round(val*100)/100;
case "0.0": o = Math.round(val*10);
return String(o/10).replace(/^([^\.]+)$/,"$1.0").replace(/\.$/,".0");
case "0.00": o = Math.round(val*100);
return String(o/100).replace(/^([^\.]+)$/,"$1.00").replace(/\.$/,".00").replace(/\.([0-9])$/,".$1"+"0");
case "0.000": o = Math.round(val*1000);
return String(o/1000).replace(/^([^\.]+)$/,"$1.000").replace(/\.$/,".000").replace(/\.([0-9])$/,".$1"+"00").replace(/\.([0-9][0-9])$/,".$1"+"0");
case "#,##0": return sign + commaify(String(Math.round(aval)));
case "#,##0.00": return val < 0 ? "-" + write_num(type, fmt, -val) : commaify(String(Math.floor(val))) + "." + Math.round((val-Math.floor(val))*100);
case "#,##0.0": r = Math.round((val-Math.floor(val))*10); return val < 0 ? "-" + write_num(type, fmt, -val) : commaify(String(Math.floor(val))) + "." + r;
case "#,##0.00": r = Math.round((val-Math.floor(val))*100); return val < 0 ? "-" + write_num(type, fmt, -val) : commaify(String(Math.floor(val))) + "." + (r < 10 ? "0"+r:r);
```
The frac helper function is used for fraction formats (defined below).
```js>tmp/number.js
case "# ? / ?": ff = frac(val<0?-val:val, 10, true); return (val<0?"-":"") + ff[0] + " " + ff[1] + "/" + ff[2];
case "# ?? / ??": ff = frac(val<0?-val:val, 100, true); return (val<0?"-":"") + ff[0] + " " + ff[1] + "/" + ff[2];
default:
case "# ? / ?": ff = frac(val<0?-val:val, 10, true); return (val<0?"-":"") + ff[0] + " " + ff[1] + "/" + ff[2];
case "# ?? / ??": ff = frac(val<0?-val:val, 100, true); return (val<0?"-":"") + ff[0] + " " + ff[1] + "/" + ff[2];
default:
}
throw new Error("unsupported format |" + fmt + "|");
};
@ -430,7 +481,7 @@ The frac helper function is used for fraction formats (defined below).
## Evaluating Format Strings
```js>tmp/main.js
function eval_fmt(fmt, v, opts) {
function eval_fmt(fmt, v, opts, flen) {
var out = [], o = "", i = 0, c = "", lst='t', q = {}, dt;
fixopts(opts = (opts || {}));
var hr='H';
@ -444,9 +495,17 @@ literal if they are preceded by a slash:
```
case '"': /* Literal text */
for(o="";fmt[++i] !== '"';) o += fmt[(fmt[i] === '\\' ? ++i : i)];
out.push({t:'t', v:o}); break;
case '\\': out.push({t:'t', v:fmt[++i]}); ++i; break;
for(o="";fmt[++i] !== '"';) o += fmt[i];
out.push({t:'t', v:o}); ++i; break;
case '\\': var w = fmt[++i], t = "()".indexOf(w) === -1 ? 't' : w;
out.push({t:t, v:w}); ++i; break;
```
The underscore character represents a literal space. Apparently, it also marks
that the next character is junk. Hence the read pointer is moved by 2:
```
case '_': out.push({t:'t', v:" "}); i+=2; break;
```
The '@' symbol refers to the original text. The ECMA spec is not complete, but
@ -512,14 +571,14 @@ the HH/hh jazz. TODO: investigate this further.
out.push(q); lst = c; break;
```
Conditional and color blocks should be handled at one point (TODO). For now,
only the absolute time `[h]` is captured (using the pseudo-type `Z`):
Conditional and color blocks should be handled at one point (TODO). For now,
only the absolute time `[h]` is captured (using the pseudo-type `Z`):
```
case '[': /* TODO: Fix this -- ignore all conditionals and formatting */
o = c;
while(fmt[i++] !== ']') o += fmt[i];
if(o == "[h]") out.push({t:'Z', v:o});
if(o == "[h]") out.push({t:'Z', v:o});
break;
```
@ -542,12 +601,18 @@ number 123.456 under format `|??| / |???| |???| foo` is `|15432| / |125| | |
q={t:c, v:o}; out.push(q); lst = c; break;
```
Due to how the CSV generation works, asterisk characters are discarded. TODO:
communicate this somehow, possibly with an option
```
case '*': ++i; if(fmt[i] == ' ') ++i; break; // **
```
The open and close parens `()` also has special meaning (for negative numbers):
```
case '(': case ')': out.push({t:c,v:c}); ++i; break;
case '(': case ')': out.push({t:(flen===1?'t':c),v:c}); ++i; break;
```
The default magic characters are listed in subsubsections 18.8.30-31 of ECMA376:
@ -579,12 +644,12 @@ The default magic characters are listed in subsubsections 18.8.30-31 of ECMA376:
out[i].t = 't'; break;
case 'n': case '(':
var jj = i+1;
while(out[jj] && (out[jj].t == '?' || out[jj].t == ' ' || out[i].t == '(' && (out[jj].t == ')' || out[jj].t == 'n') || out[jj].t == 't' && out[jj].v == '/')) {
while(out[jj] && (out[jj].t == '?' || out[jj].t == ' ' || out[i].t == '(' && (out[jj].t == ')' || out[jj].t == 'n') || out[jj].t == 't' && (out[jj].v == '/' || out[jj].v == '$'))) {
if(out[jj].v!==' ') out[i].v += ' ' + out[jj].v;
delete out[jj]; ++jj;
}
out[i].v = write_num(out[i].t, out[i].v, v);
out[i].t = 't';
out[i].t = 't';
i = jj; break;
default: throw "unrecognized type " + out[i].t;
}
@ -670,28 +735,30 @@ should be a two-digit year, but `ee` in excel is actually the four-digit year:
};
```
Based on the value, `choose_fmt` picks the right format string:
Based on the value, `choose_fmt` picks the right format string. If formats have
explicit negative specifications, those values should be passed as positive:
```js>tmp/main.js
function choose_fmt(fmt, v) {
function choose_fmt(fmt, v, o) {
if(typeof fmt === 'number') fmt = table_fmt[fmt];
if(typeof fmt === "string") fmt = split_fmt(fmt);
var l = fmt.length;
switch(fmt.length) {
case 1: fmt = [fmt[0], fmt[0], fmt[0], "@"]; break;
case 2: fmt = [fmt[0], fmt[1], fmt[0], "@"]; break;
case 4: break;
case 4: break;
default: throw "cannot find right format for |" + fmt + "|";
}
if(typeof v !== "number") return fmt[3];
return v > 0 ? fmt[0] : v < 0 ? fmt[1] : fmt[2];
if(typeof v !== "number") return [fmt.length, fmt[3]];
return [l, v > 0 ? fmt[0] : v < 0 ? fmt[1] : fmt[2]];
}
var format = function format(fmt,v,o) {
fixopts(o = (o||{}));
if(fmt === 0) return general_fmt(v, o);
if(typeof fmt === 'number') fmt = table_fmt[fmt];
fmt = table_fmt[fmt];
var f = choose_fmt(fmt, v, o);
return eval_fmt(f, v, o);
return eval_fmt(f[1], v, o, f[0]);
};
```
@ -739,7 +806,7 @@ var frac = function(x, D, mixed) {
```js>tmp/00_header.js
/* ssf.js (C) 2013 SheetJS -- http://sheetjs.com */
var SSF = {};
(function(SSF){
var make_ssf = function(SSF){
String.prototype.reverse=function(){return this.split("").reverse().join("");};
var _strrev = function(x) { return String(x).reverse(); };
function fill(c,l) { return new Array(l+1).join(c); }
@ -747,11 +814,13 @@ function pad(v,d){var t=String(v);return t.length>=d?t:(fill(0,d-t.length)+t);}
```
```js>tmp/zz_footer_n.js
})(typeof exports !== 'undefined' ? exports : SSF);
};
make_ssf(typeof exports !== 'undefined' ? exports : SSF);
```
```js>tmp/zz_footer.js
})(SSF);
};
make_ssf(SSF);
```
## .vocrc and post-commands
@ -788,7 +857,7 @@ test:
```json>package.json
{
"name": "ssf",
"version": "0.2.3",
"version": "0.3.0",
"author": "SheetJS",
"description": "pure-JS library to format data using ECMA-376 spreadsheet Format Codes",
"keywords": [ "format", "sprintf", "spreadsheet" ],
@ -830,7 +899,7 @@ The mocha test driver tests the implied formats:
var SSF = require('../');
var fs = require('fs'), assert = require('assert');
var data = JSON.parse(fs.readFileSync('./test/implied.json','utf8'));
var skip = [48];
var skip = [];
describe('implied formats', function() {
data.forEach(function(d) {
it(d[1]+" for "+d[0], skip.indexOf(d[1]) > -1 ? null : function(){

84
ssf_node.js
View File

@ -1,6 +1,6 @@
/* ssf.js (C) 2013 SheetJS -- http://sheetjs.com */
var SSF = {};
(function(SSF){
var make_ssf = function(SSF){
String.prototype.reverse=function(){return this.split("").reverse().join("");};
var _strrev = function(x) { return String(x).reverse(); };
function fill(c,l) { return new Array(l+1).join(c); }
@ -22,7 +22,7 @@ var table_fmt = {
11: '0.00E+00',
12: '# ?/?',
13: '# ??/??',
14: 'mm/dd/yy',
14: 'm/d/yy',
15: 'd-mmm-yy',
16: 'd-mmm',
17: 'mmm-yy',
@ -86,10 +86,18 @@ var frac = function(x, D, mixed) {
var general_fmt = function(v) {
if(typeof v === 'boolean') return v ? "TRUE" : "FALSE";
if(typeof v === 'number') {
return v.toPrecision(10).replace(/\.0*$/,"").replace(/\.(.*[^0])0*$/,".$1");
var o, V = v < 0 ? -v : v;
if(V >= 0.1 && V < 1) o = v.toPrecision(9);
else if(V >= 0.01 && V < 0.1) o = v.toPrecision(8);
else if(V >= 0.001 && V < 0.01) o = v.toPrecision(7);
else if(V > Math.pow(10,-9) && V < Math.pow(10,10)) {
o = v.toPrecision(10); if(o.length > 11+(v<0?1:0)) o = v.toExponential(5);
}
else o = v.toPrecision(6);
return o.replace("e","E").replace(/\.0*$/,"").replace(/\.(.*[^0])0*$/,".$1").replace(/(E[+-])([0-9])$/,"$1"+"0"+"$2");
}
if(typeof v === 'string') return v;
throw "unsupport value in General format: " + v;
throw "unsupported value in General format: " + v;
};
SSF._general = general_fmt;
var parse_date_code = function parse_date_code(v,opts) {
@ -97,6 +105,7 @@ var parse_date_code = function parse_date_code(v,opts) {
var dout=[], out={D:date, T:time, u:86400*(v-date)-time}; fixopts(opts = (opts||{}));
if(opts.date1904) date += 1462;
if(date === 60) {dout = [1900,2,29]; dow=3;}
else if(date === 0) {dout = [1900,1,0]; dow=6;}
else {
if(date > 60) --date;
/* 1 = Jan 1 1900 */
@ -168,31 +177,42 @@ var write_date = function(type, fmt, val) {
}
};
String.prototype.reverse = function() { return this.split("").reverse().join(""); };
var commaify = function(s) { return s.reverse().replace(/.../g,"$&,").reverse(); };
var commaify = function(s) { return s.reverse().replace(/.../g,"$&,").reverse().replace(/^,/,""); };
var write_num = function(type, fmt, val) {
if(type === '(') {
var ffmt = fmt.replace(/\( */,"").replace(/ \)/,"").replace(/\)/,"");
var ffmt = fmt.replace(/\( */,"").replace(/ \)/,"").replace(/\)/,"");
if(val >= 0) return write_num('n', ffmt, val);
return '(' + write_num('n', ffmt, -val) + ')';
}
var mul = 0;
var mul = 0, o;
fmt = fmt.replace(/%/g,function(x) { mul++; return ""; });
if(mul !== 0) return write_num(type, fmt, val * Math.pow(10,2*mul)) + fill("%",mul);
if(fmt.indexOf("E") > -1) {
var o = val.toExponential(fmt.indexOf("E") - fmt.indexOf(".") - 1);
var idx = fmt.indexOf("E") - fmt.indexOf(".") - 1;
if(fmt == '##0.0E+0') {
var ee = Number(val.toExponential(0).substr(3))%3;
o = (val/Math.pow(10,ee%3)).toPrecision(idx+1+(ee%3)).replace(/^([+-]?)([0-9]*)\.([0-9]*)[Ee]/,function($$,$1,$2,$3) { return $1 + $2 + $3.substr(0,ee) + "." + $3.substr(ee) + "E"; });
} else o = val.toExponential(idx);
if(fmt.match(/E\+00$/) && o.match(/e[+-][0-9]$/)) o = o.substr(0,o.length-1) + "0" + o[o.length-1];
if(fmt.match(/E\-/) && o.match(/e\+/)) o = o.replace(/e\+/,"e");
return o.replace("e","E");
}
var ff, aval = val < 0 ? -val : val, sign = val < 0 ? "-" : "";
if(fmt[0] === "$") return "$"+write_num(type,fmt.substr(fmt[1]==' '?2:1),val);
var r, ff, aval = val < 0 ? -val : val, sign = val < 0 ? "-" : "";
switch(fmt) {
case "0": return Math.round(val);
case "0.00": return Math.round(val*100)/100;
case "0.0": o = Math.round(val*10);
return String(o/10).replace(/^([^\.]+)$/,"$1.0").replace(/\.$/,".0");
case "0.00": o = Math.round(val*100);
return String(o/100).replace(/^([^\.]+)$/,"$1.00").replace(/\.$/,".00").replace(/\.([0-9])$/,".$1"+"0");
case "0.000": o = Math.round(val*1000);
return String(o/1000).replace(/^([^\.]+)$/,"$1.000").replace(/\.$/,".000").replace(/\.([0-9])$/,".$1"+"00").replace(/\.([0-9][0-9])$/,".$1"+"0");
case "#,##0": return sign + commaify(String(Math.round(aval)));
case "#,##0.00": return val < 0 ? "-" + write_num(type, fmt, -val) : commaify(String(Math.floor(val))) + "." + Math.round((val-Math.floor(val))*100);
case "# ? / ?": ff = frac(val<0?-val:val, 10, true); return (val<0?"-":"") + ff[0] + " " + ff[1] + "/" + ff[2];
case "# ?? / ??": ff = frac(val<0?-val:val, 100, true); return (val<0?"-":"") + ff[0] + " " + ff[1] + "/" + ff[2];
default:
case "#,##0.0": r = Math.round((val-Math.floor(val))*10); return val < 0 ? "-" + write_num(type, fmt, -val) : commaify(String(Math.floor(val))) + "." + r;
case "#,##0.00": r = Math.round((val-Math.floor(val))*100); return val < 0 ? "-" + write_num(type, fmt, -val) : commaify(String(Math.floor(val))) + "." + (r < 10 ? "0"+r:r);
case "# ? / ?": ff = frac(val<0?-val:val, 10, true); return (val<0?"-":"") + ff[0] + " " + ff[1] + "/" + ff[2];
case "# ?? / ??": ff = frac(val<0?-val:val, 100, true); return (val<0?"-":"") + ff[0] + " " + ff[1] + "/" + ff[2];
default:
}
throw new Error("unsupported format |" + fmt + "|");
};
@ -212,7 +232,7 @@ function split_fmt(fmt) {
return out;
}
SSF._split = split_fmt;
function eval_fmt(fmt, v, opts) {
function eval_fmt(fmt, v, opts, flen) {
var out = [], o = "", i = 0, c = "", lst='t', q = {}, dt;
fixopts(opts = (opts || {}));
var hr='H';
@ -220,9 +240,11 @@ function eval_fmt(fmt, v, opts) {
while(i < fmt.length) {
switch((c = fmt[i])) {
case '"': /* Literal text */
for(o="";fmt[++i] !== '"';) o += fmt[(fmt[i] === '\\' ? ++i : i)];
out.push({t:'t', v:o}); break;
case '\\': out.push({t:'t', v:fmt[++i]}); ++i; break;
for(o="";fmt[++i] !== '"';) o += fmt[i];
out.push({t:'t', v:o}); ++i; break;
case '\\': var w = fmt[++i], t = "()".indexOf(w) === -1 ? 't' : w;
out.push({t:t, v:w}); ++i; break;
case '_': out.push({t:'t', v:" "}); i+=2; break;
case '@': /* Text Placeholder */
out.push({t:'T', v:v}); ++i; break;
/* Dates */
@ -244,7 +266,7 @@ function eval_fmt(fmt, v, opts) {
case '[': /* TODO: Fix this -- ignore all conditionals and formatting */
o = c;
while(fmt[i++] !== ']') o += fmt[i];
if(o == "[h]") out.push({t:'Z', v:o});
if(o == "[h]") out.push({t:'Z', v:o});
break;
/* Numbers */
case '0': case '#':
@ -253,8 +275,8 @@ function eval_fmt(fmt, v, opts) {
case '?':
o = fmt[i]; while(fmt[++i] === c) o+=c;
q={t:c, v:o}; out.push(q); lst = c; break;
case '(': case ')': out.push({t:c,v:c}); ++i; break;
case '*': ++i; if(fmt[i] == ' ') ++i; break; // **
case '(': case ')': out.push({t:(flen===1?'t':c),v:c}); ++i; break;
case ' ': out.push({t:c,v:c}); ++i; break;
default:
if("$-+/():!^&'~{}<>=".indexOf(c) === -1)
@ -281,12 +303,12 @@ function eval_fmt(fmt, v, opts) {
out[i].t = 't'; break;
case 'n': case '(':
var jj = i+1;
while(out[jj] && (out[jj].t == '?' || out[jj].t == ' ' || out[i].t == '(' && (out[jj].t == ')' || out[jj].t == 'n') || out[jj].t == 't' && out[jj].v == '/')) {
while(out[jj] && (out[jj].t == '?' || out[jj].t == ' ' || out[i].t == '(' && (out[jj].t == ')' || out[jj].t == 'n') || out[jj].t == 't' && (out[jj].v == '/' || out[jj].v == '$'))) {
if(out[jj].v!==' ') out[i].v += ' ' + out[jj].v;
delete out[jj]; ++jj;
}
out[i].v = write_num(out[i].t, out[i].v, v);
out[i].t = 't';
out[i].t = 't';
i = jj; break;
default: throw "unrecognized type " + out[i].t;
}
@ -295,29 +317,31 @@ function eval_fmt(fmt, v, opts) {
return out.map(function(x){return x.v;}).join("");
}
SSF._eval = eval_fmt;
function choose_fmt(fmt, v) {
function choose_fmt(fmt, v, o) {
if(typeof fmt === 'number') fmt = table_fmt[fmt];
if(typeof fmt === "string") fmt = split_fmt(fmt);
var l = fmt.length;
switch(fmt.length) {
case 1: fmt = [fmt[0], fmt[0], fmt[0], "@"]; break;
case 2: fmt = [fmt[0], fmt[1], fmt[0], "@"]; break;
case 4: break;
case 4: break;
default: throw "cannot find right format for |" + fmt + "|";
}
if(typeof v !== "number") return fmt[3];
return v > 0 ? fmt[0] : v < 0 ? fmt[1] : fmt[2];
if(typeof v !== "number") return [fmt.length, fmt[3]];
return [l, v > 0 ? fmt[0] : v < 0 ? fmt[1] : fmt[2]];
}
var format = function format(fmt,v,o) {
fixopts(o = (o||{}));
if(fmt === 0) return general_fmt(v, o);
if(typeof fmt === 'number') fmt = table_fmt[fmt];
fmt = table_fmt[fmt];
var f = choose_fmt(fmt, v, o);
return eval_fmt(f, v, o);
return eval_fmt(f[1], v, o, f[0]);
};
SSF._choose = choose_fmt;
SSF._table = table_fmt;
SSF.load = function(fmt, idx) { table_fmt[idx] = fmt; };
SSF.format = format;
})(typeof exports !== 'undefined' ? exports : SSF);
};
make_ssf(typeof exports !== 'undefined' ? exports : SSF);

2
test/implied.js
View File

@ -2,7 +2,7 @@
var SSF = require('../');
var fs = require('fs'), assert = require('assert');
var data = JSON.parse(fs.readFileSync('./test/implied.json','utf8'));
var skip = [48];
var skip = [];
describe('implied formats', function() {
data.forEach(function(d) {
it(d[1]+" for "+d[0], skip.indexOf(d[1]) > -1 ? null : function(){

8
test/implied.json
View File

@ -56,6 +56,12 @@
[-12345.6789, 47, ""],
[-12345.6789, 48, "-12.3E+3"],
[-12345.6789, 49, "-12345.6789"],
[11.666666666666666, 0, "11.66666667"],
[5.057996968497839, 0, "5.057996968"],
[4.380353866983808, 0, "4.380353867"],
[12.333333333333343, 0, "12.33333333"],
[-0.000006211546860868111, 0, "-6.21155E-06"],
[true, 0, "TRUE"],
[false, 0, "FALSE"],
[0, 0, "0"]
]