xsheetjs/bits/97_node.js
SheetJS 5d997df419 version bump 0.10.5
- 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)
2017-06-09 21:54:33 -04:00

64 lines
1.8 KiB
JavaScript

if(has_buf && typeof require != 'undefined') (function() {
var Readable = require('stream').Readable;
var write_csv_stream = function(sheet/*:Worksheet*/, opts/*:?Sheet2CSVOpts*/) {
var stream = Readable();
var out = "";
var o = opts == null ? {} : opts;
if(sheet == null || sheet["!ref"] == null) { stream.push(null); return stream; }
var r = safe_decode_range(sheet["!ref"]);
var FS = o.FS !== undefined ? o.FS : ",", fs = FS.charCodeAt(0);
var RS = o.RS !== undefined ? o.RS : "\n", rs = RS.charCodeAt(0);
var endregex = new RegExp((FS=="|" ? "\\|" : FS)+"+$");
var row/*:?string*/ = "", cols = [];
o.dense = Array.isArray(sheet);
for(var C = r.s.c; C <= r.e.c; ++C) cols[C] = encode_col(C);
var R = r.s.r;
stream._read = function() {
if(R > r.e.r) return stream.push(null);
while(R <= r.e.r) {
row = make_csv_row(sheet, r, R, cols, fs, rs, FS, o);
++R;
if(row != null) {
if(o.strip) row = row.replace(endregex,"");
stream.push(row + RS);
break;
}
}
};
return stream;
};
var write_html_stream = function(ws/*:Worksheet*/, opts/*:?Sheet2HTMLOpts*/) {
var stream = Readable();
var o = opts || {};
var header = o.header != null ? o.header : HTML_.BEGIN;
var footer = o.footer != null ? o.footer : HTML_.END;
stream.push(header);
var r = decode_range(ws['!ref']);
o.dense = Array.isArray(ws);
stream.push(HTML_._preamble(ws, r, o));
var R = r.s.r;
var end = false;
stream._read = function() {
if(R > r.e.r) {
if(!end) { end = true; stream.push("</table>" + footer); }
return stream.push(null);
}
while(R <= r.e.r) {
stream.push(HTML_._row(ws, r, R, o));
++R;
break;
}
};
return stream;
};
XLSX.stream = {
to_html: write_html_stream,
to_csv: write_csv_stream
};
})();