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Parse DIF-esque CSV (fixes #3230 h/t @lowkeyfish)

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SheetJS 2024-10-02 01:04:56 -04:00
parent 36debb0eaa
commit 2d6c821261
3 changed files with 16 additions and 1 deletions
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1
CHANGELOG.md
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@ -7,6 +7,7 @@ changes may not be included if they are not expected to break existing code.
* Sheet Visibility for ODS / FODS (h/t @edemaine)
* HTML DOM ingress support formulae (`data-f`)
* Proper handling of XLSX encoded entities (h/t @inreoh)
* Proper handling of invalid DIF sheets that match heuristics (h/t @lowkeyfish)
## v0.20.3

14
bits/40_harb.js
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@ -1138,3 +1138,17 @@ function read_wb_ID(d, opts) {
}
}
function read_wb_TABL(d, opts) {
var o = opts || {}, OLD_WTF = !!o.WTF; o.WTF = true;
try {
var out = DIF.to_workbook(d, o);
if(!out || !out.Sheets) throw "DIF bad workbook";
var ws = out.Sheets[out.SheetNames[0]];
if(!ws || !ws["!ref"]) throw "DIF empty worksheet";
o.WTF = OLD_WTF;
return out;
} catch(e) {
o.WTF = OLD_WTF;
return PRN.to_workbook(d, opts);
}
}

2
bits/87_read.js
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@ -99,7 +99,7 @@ function readSync(data/*:RawData*/, opts/*:?ParseOpts*/)/*:Workbook*/ {
if(n[1] === 0x49 && n[2] === 0x2a && n[3] === 0x00) throw new Error("TIFF Image File is not a spreadsheet");
if(n[1] === 0x44) return read_wb_ID(d, o);
break;
case 0x54: if(n[1] === 0x41 && n[2] === 0x42 && n[3] === 0x4C) return DIF.to_workbook(d, o); break;
case 0x54: if(n[1] === 0x41 && n[2] === 0x42 && n[3] === 0x4C) return read_wb_TABL(d, o); break;
case 0x50: return (n[1] === 0x4B && n[2] < 0x09 && n[3] < 0x09) ? read_zip(d, o) : read_prn(data, d, o, str);
case 0xEF: return n[3] === 0x3C ? parse_xlml(d, o) : read_prn(data, d, o, str);
case 0xFF: