forked from sheetjs/sheetjs
SheetJS
36fcb00045
- XLSX XML ignore attribute (fixes #1595 h/t @samih-dev) - HTML capture and persist merge info - mini build remove errant codepage reference
197 lines
8.4 KiB
JavaScript
197 lines
8.4 KiB
JavaScript
/* note: browser DOM element cannot see mso- style attrs, must parse */
|
|
var HTML_ = (function() {
|
|
function html_to_sheet(str/*:string*/, _opts)/*:Workbook*/ {
|
|
var opts = _opts || {};
|
|
if(DENSE != null && opts.dense == null) opts.dense = DENSE;
|
|
var ws/*:Worksheet*/ = opts.dense ? ([]/*:any*/) : ({}/*:any*/);
|
|
var mtch/*:any*/ = str.match(/<table/i);
|
|
if(!mtch) throw new Error("Invalid HTML: could not find <table>");
|
|
var mtch2/*:any*/ = str.match(/<\/table/i);
|
|
var i/*:number*/ = mtch.index, j/*:number*/ = mtch2 && mtch2.index || str.length;
|
|
var rows = split_regex(str.slice(i, j), /(:?<tr[^>]*>)/i, "<tr>");
|
|
var R = -1, C = 0, RS = 0, CS = 0;
|
|
var range/*:Range*/ = {s:{r:10000000, c:10000000},e:{r:0,c:0}};
|
|
var merges/*:Array<Range>*/ = [];
|
|
for(i = 0; i < rows.length; ++i) {
|
|
var row = rows[i].trim();
|
|
var hd = row.slice(0,3).toLowerCase();
|
|
if(hd == "<tr") { ++R; if(opts.sheetRows && opts.sheetRows <= R) { --R; break; } C = 0; continue; }
|
|
if(hd != "<td" && hd != "<th") continue;
|
|
var cells = row.split(/<\/t[dh]>/i);
|
|
for(j = 0; j < cells.length; ++j) {
|
|
var cell = cells[j].trim();
|
|
if(!cell.match(/<t[dh]/i)) continue;
|
|
var m = cell, cc = 0;
|
|
/* TODO: parse styles etc */
|
|
while(m.charAt(0) == "<" && (cc = m.indexOf(">")) > -1) m = m.slice(cc+1);
|
|
for(var midx = 0; midx < merges.length; ++midx) {
|
|
var _merge/*:Range*/ = merges[midx];
|
|
if(_merge.s.c == C && _merge.s.r < R && R <= _merge.e.r) { C = _merge.e.c + 1; midx = -1; }
|
|
}
|
|
var tag = parsexmltag(cell.slice(0, cell.indexOf(">")));
|
|
CS = tag.colspan ? +tag.colspan : 1;
|
|
if((RS = +tag.rowspan)>1 || CS>1) merges.push({s:{r:R,c:C},e:{r:R + (RS||1) - 1, c:C + CS - 1}});
|
|
var _t/*:string*/ = tag.t || "";
|
|
/* TODO: generate stub cells */
|
|
if(!m.length) { C += CS; continue; }
|
|
m = htmldecode(m);
|
|
if(range.s.r > R) range.s.r = R; if(range.e.r < R) range.e.r = R;
|
|
if(range.s.c > C) range.s.c = C; if(range.e.c < C) range.e.c = C;
|
|
if(!m.length) continue;
|
|
var o/*:Cell*/ = {t:'s', v:m};
|
|
if(opts.raw || !m.trim().length || _t == 's'){}
|
|
else if(m === 'TRUE') o = {t:'b', v:true};
|
|
else if(m === 'FALSE') o = {t:'b', v:false};
|
|
else if(!isNaN(fuzzynum(m))) o = {t:'n', v:fuzzynum(m)};
|
|
else if(!isNaN(fuzzydate(m).getDate())) {
|
|
o = ({t:'d', v:parseDate(m)}/*:any*/);
|
|
if(!opts.cellDates) o = ({t:'n', v:datenum(o.v)}/*:any*/);
|
|
o.z = opts.dateNF || SSF._table[14];
|
|
}
|
|
if(opts.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = o; }
|
|
else ws[encode_cell({r:R, c:C})] = o;
|
|
C += CS;
|
|
}
|
|
}
|
|
ws['!ref'] = encode_range(range);
|
|
if(merges.length) ws["!merges"] = merges;
|
|
return ws;
|
|
}
|
|
function html_to_book(str/*:string*/, opts)/*:Workbook*/ {
|
|
return sheet_to_workbook(html_to_sheet(str, opts), opts);
|
|
}
|
|
function make_html_row(ws/*:Worksheet*/, r/*:Range*/, R/*:number*/, o/*:Sheet2HTMLOpts*/)/*:string*/ {
|
|
var M/*:Array<Range>*/ = (ws['!merges'] ||[]);
|
|
var oo/*:Array<string>*/ = [];
|
|
for(var C = r.s.c; C <= r.e.c; ++C) {
|
|
var RS = 0, CS = 0;
|
|
for(var j = 0; j < M.length; ++j) {
|
|
if(M[j].s.r > R || M[j].s.c > C) continue;
|
|
if(M[j].e.r < R || M[j].e.c < C) continue;
|
|
if(M[j].s.r < R || M[j].s.c < C) { RS = -1; break; }
|
|
RS = M[j].e.r - M[j].s.r + 1; CS = M[j].e.c - M[j].s.c + 1; break;
|
|
}
|
|
if(RS < 0) continue;
|
|
var coord = encode_cell({r:R,c:C});
|
|
var cell = o.dense ? (ws[R]||[])[C] : ws[coord];
|
|
/* TODO: html entities */
|
|
var w = (cell && cell.v != null) && (cell.h || escapehtml(cell.w || (format_cell(cell), cell.w) || "")) || "";
|
|
var sp = ({}/*:any*/);
|
|
if(RS > 1) sp.rowspan = RS;
|
|
if(CS > 1) sp.colspan = CS;
|
|
sp.t = cell && cell.t || 'z';
|
|
if(o.editable) w = '<span contenteditable="true">' + w + '</span>';
|
|
sp.id = "sjs-" + coord;
|
|
oo.push(writextag('td', w, sp));
|
|
}
|
|
var preamble = "<tr>";
|
|
return preamble + oo.join("") + "</tr>";
|
|
}
|
|
function make_html_preamble(ws/*:Worksheet*/, R/*:Range*/, o/*:Sheet2HTMLOpts*/)/*:string*/ {
|
|
var out/*:Array<string>*/ = [];
|
|
return out.join("") + '<table' + (o && o.id ? ' id="' + o.id + '"' : "") + '>';
|
|
}
|
|
var _BEGIN = '<html><head><meta charset="utf-8"/><title>SheetJS Table Export</title></head><body>';
|
|
var _END = '</body></html>';
|
|
function sheet_to_html(ws/*:Worksheet*/, opts/*:?Sheet2HTMLOpts*//*, wb:?Workbook*/)/*:string*/ {
|
|
var o = opts || {};
|
|
var header = o.header != null ? o.header : _BEGIN;
|
|
var footer = o.footer != null ? o.footer : _END;
|
|
var out/*:Array<string>*/ = [header];
|
|
var r = decode_range(ws['!ref']);
|
|
o.dense = Array.isArray(ws);
|
|
out.push(make_html_preamble(ws, r, o));
|
|
for(var R = r.s.r; R <= r.e.r; ++R) out.push(make_html_row(ws, r, R, o));
|
|
out.push("</table>" + footer);
|
|
return out.join("");
|
|
}
|
|
|
|
return {
|
|
to_workbook: html_to_book,
|
|
to_sheet: html_to_sheet,
|
|
_row: make_html_row,
|
|
BEGIN: _BEGIN,
|
|
END: _END,
|
|
_preamble: make_html_preamble,
|
|
from_sheet: sheet_to_html
|
|
};
|
|
})();
|
|
|
|
function parse_dom_table(table/*:HTMLElement*/, _opts/*:?any*/)/*:Worksheet*/ {
|
|
var opts = _opts || {};
|
|
if(DENSE != null) opts.dense = DENSE;
|
|
var ws/*:Worksheet*/ = opts.dense ? ([]/*:any*/) : ({}/*:any*/);
|
|
var rows/*:HTMLCollection<HTMLTableRowElement>*/ = table.getElementsByTagName('tr');
|
|
var sheetRows = opts.sheetRows || 10000000;
|
|
var range/*:Range*/ = {s:{r:0,c:0},e:{r:0,c:0}};
|
|
var merges/*:Array<Range>*/ = [], midx = 0;
|
|
var rowinfo/*:Array<RowInfo>*/ = [];
|
|
var _R = 0, R = 0, _C, C, RS, CS;
|
|
for(; _R < rows.length && R < sheetRows; ++_R) {
|
|
var row/*:HTMLTableRowElement*/ = rows[_R];
|
|
if (is_dom_element_hidden(row)) {
|
|
if (opts.display) continue;
|
|
rowinfo[R] = {hidden: true};
|
|
}
|
|
var elts/*:HTMLCollection<HTMLTableCellElement>*/ = (row.children/*:any*/);
|
|
for(_C = C = 0; _C < elts.length; ++_C) {
|
|
var elt/*:HTMLTableCellElement*/ = elts[_C];
|
|
if (opts.display && is_dom_element_hidden(elt)) continue;
|
|
var v/*:string*/ = htmldecode(elt.innerHTML);
|
|
for(midx = 0; midx < merges.length; ++midx) {
|
|
var m/*:Range*/ = merges[midx];
|
|
if(m.s.c == C && m.s.r <= R && R <= m.e.r) { C = m.e.c+1; midx = -1; }
|
|
}
|
|
/* TODO: figure out how to extract nonstandard mso- style */
|
|
CS = +elt.getAttribute("colspan") || 1;
|
|
if((RS = +elt.getAttribute("rowspan"))>0 || CS>1) merges.push({s:{r:R,c:C},e:{r:R + (RS||1) - 1, c:C + CS - 1}});
|
|
var o/*:Cell*/ = {t:'s', v:v};
|
|
var _t/*:string*/ = elt.getAttribute("t") || "";
|
|
if(v != null) {
|
|
if(v.length == 0) o.t = _t || 'z';
|
|
else if(opts.raw || v.trim().length == 0 || _t == "s"){}
|
|
else if(v === 'TRUE') o = {t:'b', v:true};
|
|
else if(v === 'FALSE') o = {t:'b', v:false};
|
|
else if(!isNaN(fuzzynum(v))) o = {t:'n', v:fuzzynum(v)};
|
|
else if(!isNaN(fuzzydate(v).getDate())) {
|
|
o = ({t:'d', v:parseDate(v)}/*:any*/);
|
|
if(!opts.cellDates) o = ({t:'n', v:datenum(o.v)}/*:any*/);
|
|
o.z = opts.dateNF || SSF._table[14];
|
|
}
|
|
}
|
|
if(opts.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = o; }
|
|
else ws[encode_cell({c:C, r:R})] = o;
|
|
if(range.e.c < C) range.e.c = C;
|
|
C += CS;
|
|
}
|
|
++R;
|
|
}
|
|
if(merges.length) ws['!merges'] = merges;
|
|
if(rowinfo.length) ws['!rows'] = rowinfo;
|
|
range.e.r = R - 1;
|
|
ws['!ref'] = encode_range(range);
|
|
if(R >= sheetRows) ws['!fullref'] = encode_range((range.e.r = rows.length-_R+R-1,range)); // We can count the real number of rows to parse but we don't to improve the performance
|
|
return ws;
|
|
}
|
|
|
|
function table_to_book(table/*:HTMLElement*/, opts/*:?any*/)/*:Workbook*/ {
|
|
return sheet_to_workbook(parse_dom_table(table, opts), opts);
|
|
}
|
|
|
|
function is_dom_element_hidden(element/*:HTMLElement*/)/*:boolean*/ {
|
|
var display/*:string*/ = '';
|
|
var get_computed_style/*:?function*/ = get_get_computed_style_function(element);
|
|
if(get_computed_style) display = get_computed_style(element).getPropertyValue('display');
|
|
if(!display) display = element.style.display; // Fallback for cases when getComputedStyle is not available (e.g. an old browser or some Node.js environments) or doesn't work (e.g. if the element is not inserted to a document)
|
|
return display === 'none';
|
|
}
|
|
|
|
/* global getComputedStyle */
|
|
function get_get_computed_style_function(element/*:HTMLElement*/)/*:?function*/ {
|
|
// The proper getComputedStyle implementation is the one defined in the element window
|
|
if(element.ownerDocument.defaultView && typeof element.ownerDocument.defaultView.getComputedStyle === 'function') return element.ownerDocument.defaultView.getComputedStyle;
|
|
// If it is not available, try to get one from the global namespace
|
|
if(typeof getComputedStyle === 'function') return getComputedStyle;
|
|
return null;
|
|
}
|