sheetjs-clone/modules/45_rtf.js
2022-10-23 21:05:59 -04:00

104 lines
3.0 KiB
JavaScript

function rtf_to_sheet(d, opts) {
switch (opts.type) {
case "base64":
return rtf_to_sheet_str(Base64_decode(d), opts);
case "binary":
return rtf_to_sheet_str(d, opts);
case "buffer":
return rtf_to_sheet_str(has_buf && Buffer.isBuffer(d) ? d.toString("binary") : a2s(d), opts);
case "array":
return rtf_to_sheet_str(cc2str(d), opts);
}
throw new Error("Unrecognized type " + opts.type);
}
function rtf_to_sheet_str(str, opts) {
var o = opts || {};
var ws = {};
var dense = o.dense;
if (dense)
ws["!data"] = [];
var rows = str.match(/\\trowd[\s\S]*?\\row\b/g);
if (!rows)
throw new Error("RTF missing table");
var range = { s: { c: 0, r: 0 }, e: { c: 0, r: rows.length - 1 } };
var row = [];
rows.forEach(function(rowtf, R) {
if (dense)
row = ws["!data"][R] = [];
var rtfre = /\\[\w\-]+\b/g;
var last_index = 0;
var res;
var C = -1;
var payload = [];
while ((res = rtfre.exec(rowtf)) != null) {
var data = rowtf.slice(last_index, rtfre.lastIndex - res[0].length);
if (data.charCodeAt(0) == 32)
data = data.slice(1);
if (data.length)
payload.push(data);
switch (res[0]) {
case "\\cell":
++C;
if (payload.length) {
var cell = { v: payload.join(""), t: "s" };
if (cell.v == "TRUE" || cell.v == "FALSE") {
cell.v = cell.v == "TRUE";
cell.t = "b";
} else if (!isNaN(fuzzynum(cell.v))) {
cell.t = "n";
if (o.cellText !== false)
cell.w = cell.v;
cell.v = fuzzynum(cell.v);
}
if (dense)
row[C] = cell;
else
ws[encode_cell({ r: R, c: C })] = cell;
}
payload = [];
break;
case "\\par":
payload.push("\n");
break;
}
last_index = rtfre.lastIndex;
}
if (C > range.e.c)
range.e.c = C;
});
ws["!ref"] = encode_range(range);
return ws;
}
function rtf_to_workbook(d, opts) {
var wb = sheet_to_workbook(rtf_to_sheet(d, opts), opts);
wb.bookType = "rtf";
return wb;
}
function sheet_to_rtf(ws, opts) {
var o = ["{\\rtf1\\ansi"];
if (!ws["!ref"])
return o[0] + "}";
var r = safe_decode_range(ws["!ref"]), cell;
var dense = ws["!data"] != null, row = [];
for (var R = r.s.r; R <= r.e.r; ++R) {
o.push("\\trowd\\trautofit1");
for (var C = r.s.c; C <= r.e.c; ++C)
o.push("\\cellx" + (C + 1));
o.push("\\pard\\intbl");
if (dense)
row = ws["!data"][R] || [];
for (C = r.s.c; C <= r.e.c; ++C) {
var coord = encode_cell({ r: R, c: C });
cell = dense ? row[C] : ws[coord];
if (!cell || cell.v == null && (!cell.f || cell.F)) {
o.push(" \\cell");
continue;
}
o.push(" " + (cell.w || (format_cell(cell), cell.w) || "").replace(/[\r\n]/g, "\\par "));
o.push("\\cell");
}
o.push("\\pard\\intbl\\row");
}
return o.join("") + "}";
}