SheetJS Table Export

/* TODO: in browser attach to DOM; in node use an html parser */ 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 i = str.indexOf(" / pair"); var rows = str.slice(i, j).split(/(:?]*>)/); var R = -1, C = 0, RS = 0, CS = 0; var range = {s:{r:10000000, c:10000000},e:{r:0,c:0}}; var merges = [], midx = 0; for(i = 0; i < rows.length; ++i) { var row = rows[i].trim(); if(row.substr(0,3) == ""); for(j = 0; j < cells.length; ++j) { var cell = cells[j].trim(); if(cell.substr(0,3) != "")) > -1) m = m.slice(cc+1); while(m.indexOf(">") > -1) m = m.slice(0, m.lastIndexOf("<")); var tag = parsexmltag(cell.slice(0, cell.indexOf(">"))); CS = tag.colspan ? +tag.colspan : 1; if((RS = +tag.rowspan)>0 || CS>1) merges.push({s:{r:R,c:C},e:{r:R + (RS||1) - 1, c:C + CS - 1}}); /* TODO: generate stub cells */ if(!m.length) { C += CS; continue; } m = unescapexml(m).replace(/[\r\n]/g,""); 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(opts.dense) { if(!ws[R]) ws[R] = []; if(Number(m) == Number(m)) ws[R][C] = {t:'n', v:+m}; else ws[R][C] = {t:'s', v:m}; } else { var coord/*:string*/ = encode_cell({r:R, c:C}); /* TODO: value parsing */ if(Number(m) == Number(m)) ws[coord] = {t:'n', v:+m}; else ws[coord] = {t:'s', v:m}; } C += CS; } } ws['!ref'] = encode_range(range); 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 = (ws['!merges'] ||[]); var oo = []; var nullcell = ""; 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]; if(!cell || cell.v == null) { oo.push(nullcell); continue; } /* TODO: html entities */ var w = cell.h || escapexml(cell.w || (format_cell(cell), cell.w) || ""); var sp = {}; if(RS > 1) sp.rowspan = RS; if(CS > 1) sp.colspan = CS; if(o.editable) sp.contenteditable = "true"; oo.push(writextag('td', w, sp)); } return "" + oo.join("") + ""; } var _BEGIN = "SheetJS Table Export"; var _END = "

"; function sheet_to_html(ws/*:Worksheet*/, opts/*:?Sheet2HTMLOpts*/)/*:string*/ { var o = opts || {}; var out/*:Array*/ = []; var r = decode_range(ws['!ref']); o.dense = Array.isArray(ws); for(var R = r.s.r; R <= r.e.r; ++R) out.push(make_html_row(ws, r, R, o)); var header = o.header != null ? o.header : _BEGIN; var footer = o.footer != null ? o.footer : _END; return header + out.join("") + footer ; } return { to_workbook: html_to_book, to_sheet: html_to_sheet, _row: make_html_row, BEGIN: _BEGIN, END: _END, 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 = table.getElementsByTagName('tr'); var range = {s:{r:0,c:0},e:{r:rows.length - 1,c:0}}; var merges = [], midx = 0; var R = 0, _C = 0, C = 0, RS = 0, CS = 0; for(; R < rows.length; ++R) { var row = rows[R]; var elts = row.children; for(_C = C = 0; _C < elts.length; ++_C) { var elt = elts[_C], v = elts[_C].innerText; for(midx = 0; midx < merges.length; ++midx) { var m = 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 = {t:'s', v:v}; if(v != null && v.length && !isNaN(Number(v))) o = {t:'n', v:Number(v)}; 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; } } ws['!merges'] = merges; ws['!ref'] = encode_range(range); return ws; } function table_to_book(table/*:HTMLElement*/, opts/*:?any*/)/*:Workbook*/ { return sheet_to_workbook(parse_dom_table(table, opts), opts); }