xsheetjs/bits/61_fcommon.js
SheetJS d7ecca0e8b version bump 0.8.4: formula parsing
- BIFF 2-12 formula parsing
- more content type coverage
- unified `.f` form: A1-style string
- `.F` field for array formulae
- formula output groups array formulae
- bin script -A --arrays output JS row objects
- whitespace robustness in inline string xml
- UTF-8 parsing in rich text runs (fixes #505 h/t @fuchsc)
- bold/italic/underline accept null val attr (h/t @qqilihq)
- sst trimming (fixes #176 h/t @shakhal @oising)
2017-02-19 12:36:32 -08:00

31 lines
1.3 KiB
JavaScript

/* TODO: it will be useful to parse the function str */
var rc_to_a1 = (function(){
var rcregex = /(^|[^A-Za-z])R(\[?)(-?\d+|)\]?C(\[?)(-?\d+|)\]?/g;
var rcbase;
function rcfunc($$,$1,$2,$3,$4,$5) {
var R = $3.length>0?parseInt($3,10)|0:0, C = $5.length>0?parseInt($5,10)|0:0;
if(C<0 && $4.length === 0) C=0;
var cRel = false, rRel = false;
if($4.length > 0 || $5.length == 0) cRel = true; if(cRel) C += rcbase.c; else --C;
if($2.length > 0 || $3.length == 0) rRel = true; if(rRel) R += rcbase.r; else --R;
return $1 + (cRel ? "" : "$") + encode_col(C) + (rRel ? "" : "$") + encode_row(R);
}
return function rc_to_a1(fstr, base) {
rcbase = base;
return fstr.replace(rcregex, rcfunc);
};
})();
/* TODO actually parse the formula */
function shift_formula_str(f/*:string*/, delta/*:Cell*/)/*:string*/ {
return f.replace(/(^|[^A-Z0-9])([$]?)([A-Z]+)([$]?)(\d+)/g, function($0, $1, $2, $3, $4, $5, off, str) {
return $1+($2=="$" ? $2+$3 : encode_col(decode_col($3)+delta.c))+($4=="$" ? $4+$5 : encode_row(decode_row($5) + delta.r));
});
}
function shift_formula_xlsx(f/*:string*/, range/*:string*/, cell/*:string*/)/*:string*/ {
var r = decode_range(range), s = r.s, c = decode_cell(cell);
var delta = {r:c.r - s.r, c:c.c - s.c};
return shift_formula_str(f, delta);
}