forked from sheetjs/sheetjs
SheetJS
5d997df419
- HTML output new preamble, <table> should not be in header/footer - XLS Built-In defined names translated to XLSX _xlnm form - README: streaming read strategies - If approximation error is sufficiently small, assume MDW is 6 - TS rename Utils type to XLSX$Utils (see #618)
64 lines
1.8 KiB
JavaScript
64 lines
1.8 KiB
JavaScript
if(has_buf && typeof require != 'undefined') (function() {
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var Readable = require('stream').Readable;
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var write_csv_stream = function(sheet/*:Worksheet*/, opts/*:?Sheet2CSVOpts*/) {
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var stream = Readable();
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var out = "";
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var o = opts == null ? {} : opts;
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if(sheet == null || sheet["!ref"] == null) { stream.push(null); return stream; }
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var r = safe_decode_range(sheet["!ref"]);
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var FS = o.FS !== undefined ? o.FS : ",", fs = FS.charCodeAt(0);
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var RS = o.RS !== undefined ? o.RS : "\n", rs = RS.charCodeAt(0);
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var endregex = new RegExp((FS=="|" ? "\\|" : FS)+"+$");
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var row/*:?string*/ = "", cols = [];
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o.dense = Array.isArray(sheet);
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for(var C = r.s.c; C <= r.e.c; ++C) cols[C] = encode_col(C);
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var R = r.s.r;
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stream._read = function() {
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if(R > r.e.r) return stream.push(null);
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while(R <= r.e.r) {
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row = make_csv_row(sheet, r, R, cols, fs, rs, FS, o);
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++R;
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if(row != null) {
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if(o.strip) row = row.replace(endregex,"");
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stream.push(row + RS);
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break;
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}
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}
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};
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return stream;
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};
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var write_html_stream = function(ws/*:Worksheet*/, opts/*:?Sheet2HTMLOpts*/) {
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var stream = Readable();
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var o = opts || {};
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var header = o.header != null ? o.header : HTML_.BEGIN;
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var footer = o.footer != null ? o.footer : HTML_.END;
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stream.push(header);
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var r = decode_range(ws['!ref']);
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o.dense = Array.isArray(ws);
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stream.push(HTML_._preamble(ws, r, o));
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var R = r.s.r;
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var end = false;
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stream._read = function() {
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if(R > r.e.r) {
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if(!end) { end = true; stream.push("</table>" + footer); }
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return stream.push(null);
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}
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while(R <= r.e.r) {
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stream.push(HTML_._row(ws, r, R, o));
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++R;
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break;
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}
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};
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return stream;
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};
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XLSX.stream = {
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to_html: write_html_stream,
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to_csv: write_csv_stream
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};
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})();
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