forked from sheetjs/sheetjs
32 lines
1.5 KiB
JavaScript
32 lines
1.5 KiB
JavaScript
function write_num_cm2(type/*:string*/, fmt/*:string*/, val/*:number*/)/*:string*/{
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var idx = fmt.length - 1;
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while(fmt.charCodeAt(idx-1) === 44) --idx;
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return write_num(type, fmt.substr(0,idx), val / Math.pow(10,3*(fmt.length-idx)));
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}
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function write_num_pct2(type/*:string*/, fmt/*:string*/, val/*:number*/)/*:string*/{
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var sfmt = fmt.replace(pct1,""), mul = fmt.length - sfmt.length;
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return write_num(type, sfmt, val * Math.pow(10,2*mul)) + fill("%",mul);
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}
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function write_num_exp2(fmt/*:string*/, val/*:number*/)/*:string*/{
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var o/*:string*/;
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var idx = fmt.indexOf("E") - fmt.indexOf(".") - 1;
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if(fmt.match(/^#+0.0E\+0$/)) {
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if(val == 0) return "0.0E+0";
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else if(val < 0) return "-" + write_num_exp2(fmt, -val);
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var period = fmt.indexOf("."); if(period === -1) period=fmt.indexOf('E');
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var ee = Math.floor(Math.log(val)*Math.LOG10E)%period;
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if(ee < 0) ee += period;
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o = (val/Math.pow(10,ee)).toPrecision(idx+1+(period+ee)%period);
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if(!o.match(/[Ee]/)) {
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var fakee = Math.floor(Math.log(val)*Math.LOG10E);
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if(o.indexOf(".") === -1) o = o.charAt(0) + "." + o.substr(1) + "E+" + (fakee - o.length+ee);
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else o += "E+" + (fakee - ee);
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o = o.replace(/\+-/,"-");
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}
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o = o.replace(/^([+-]?)(\d*)\.(\d*)[Ee]/,function($$,$1,$2,$3) { return $1 + $2 + $3.substr(0,(period+ee)%period) + "." + $3.substr(ee) + "E"; });
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} else o = val.toExponential(idx);
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if(fmt.match(/E\+00$/) && o.match(/e[+-]\d$/)) o = o.substr(0,o.length-1) + "0" + o.charAt(o.length-1);
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if(fmt.match(/E\-/) && o.match(/e\+/)) o = o.replace(/e\+/,"e");
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return o.replace("e","E");
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}
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