sheetjs/modules/51_xlsxmeta.ts

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/// <reference path="src/types.ts"/>
/* 12.3.10 Metadata Part */
function parse_xlmeta_xml(data: string, name: string, opts?: ParseXLMetaOptions): XLMeta {
var out: XLMeta = { Types: [], Cell: [], Value: [] };
if(!data) return out;
var pass = false;
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var metatype: 0 | 1 | 2 = 2;
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var lastmeta: XLMDT;
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data.replace(tagregex, (x: string/*, idx: number*/) => {
var y: any = parsexmltag(x);
switch(strip_ns(y[0])) {
case '<?xml': break;
/* 18.9.8 */
case '<metadata': case '</metadata>': break;
/* 18.9.11 */
case '<metadataTypes': case '</metadataTypes>': break;
/* 18.9.10 */
case '<metadataType':
out.Types.push({ name: y.name });
break;
case '</metadataType>': break;
/* 18.9.4 */
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case '<futureMetadata':
for(var j = 0; j < out.Types.length; ++j) if(out.Types[j].name == y.name) lastmeta = out.Types[j];
break;
case '</futureMetadata>': break;
/* 18.9.1 */
case '<bk>': break;
case '</bk>': break;
/* 18.9.15 */
case '<rc':
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if(metatype == 1) out.Cell.push({ type: out.Types[y.t - 1].name, index: +y.v });
else if(metatype == 0) out.Value.push({ type: out.Types[y.t - 1].name, index: +y.v });
break;
case '</rc>': break;
/* 18.9.3 */
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case '<cellMetadata': metatype = 1; break;
case '</cellMetadata>': metatype = 2; break;
/* 18.9.17 */
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case '<valueMetadata': metatype = 0; break;
case '</valueMetadata>': metatype = 2; break;
/* 18.2.10 extLst CT_ExtensionList ? */
case '<extLst': case '<extLst>': case '</extLst>': case '<extLst/>': break;
/* 18.2.7 ext CT_Extension + */
case '<ext': pass=true; break; //TODO: check with versions of excel
case '</ext>': pass=false; break;
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case '<rvb':
if(!lastmeta) break;
if(!lastmeta.offsets) lastmeta.offsets = [];
lastmeta.offsets.push(+y.i);
break;
default: if(!pass && opts.WTF) throw new Error('unrecognized ' + y[0] + ' in metadata');
}
return x;
});
return out;
}
/* TODO: coordinate with cell writing, pass flags */
function write_xlmeta_xml(): string {
var o = [XML_HEADER];
o.push(`\
<metadata xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:xlrd="http://schemas.microsoft.com/office/spreadsheetml/2017/richdata" xmlns:xda="http://schemas.microsoft.com/office/spreadsheetml/2017/dynamicarray">
<metadataTypes count="1">
<metadataType name="XLDAPR" minSupportedVersion="120000" copy="1" pasteAll="1" pasteValues="1" merge="1" splitFirst="1" rowColShift="1" clearFormats="1" clearComments="1" assign="1" coerce="1" cellMeta="1"/>
</metadataTypes>
<futureMetadata name="XLDAPR" count="1">
<bk>
<extLst>
<ext uri="{bdbb8cdc-fa1e-496e-a857-3c3f30c029c3}">
<xda:dynamicArrayProperties fDynamic="1" fCollapsed="0"/>
</ext>
</extLst>
</bk>
</futureMetadata>
<cellMetadata count="1">
<bk>
<rc t="1" v="0"/>
</bk>
</cellMetadata>
</metadata>`);
return o.join("");
}