255 lines
9.6 KiB
JavaScript
255 lines
9.6 KiB
JavaScript
function eval_fmt(fmt/*:string*/, v/*:any*/, opts/*:any*/, flen/*:number*/) {
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var out = [], o = "", i = 0, c = "", lst='t', dt, j, cc;
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var hr='H';
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/* Tokenize */
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while(i < fmt.length) {
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switch((c = fmt.charAt(i))) {
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case 'G': /* General */
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if(!isgeneral(fmt, i)) throw new Error('unrecognized character ' + c + ' in ' +fmt);
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out[out.length] = {t:'G', v:'General'}; i+=7; break;
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case '"': /* Literal text */
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for(o="";(cc=fmt.charCodeAt(++i)) !== 34 && i < fmt.length;) o += String.fromCharCode(cc);
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out[out.length] = {t:'t', v:o}; ++i; break;
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case '\\': var w = fmt.charAt(++i), t = (w === "(" || w === ")") ? w : 't';
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out[out.length] = {t:t, v:w}; ++i; break;
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case '_': out[out.length] = {t:'t', v:" "}; i+=2; break;
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case '@': /* Text Placeholder */
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out[out.length] = {t:'T', v:v}; ++i; break;
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case 'B': case 'b':
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if(fmt.charAt(i+1) === "1" || fmt.charAt(i+1) === "2") {
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if(dt==null) { dt=parse_date_code(v, opts, fmt.charAt(i+1) === "2"); if(dt==null) return ""; }
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out[out.length] = {t:'X', v:fmt.substr(i,2)}; lst = c; i+=2; break;
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}
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/* falls through */
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case 'M': case 'D': case 'Y': case 'H': case 'S': case 'E':
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c = c.toLowerCase();
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/* falls through */
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case 'm': case 'd': case 'y': case 'h': case 's': case 'e': case 'g':
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if(v < 0) return "";
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if(dt==null) { dt=parse_date_code(v, opts); if(dt==null) return ""; }
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o = c; while(++i < fmt.length && fmt.charAt(i).toLowerCase() === c) o+=c;
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if(c === 'm' && lst.toLowerCase() === 'h') c = 'M';
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if(c === 'h') c = hr;
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out[out.length] = {t:c, v:o}; lst = c; break;
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case 'A': case 'a': case '上':
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var q={t:c, v:c};
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if(dt==null) dt=parse_date_code(v, opts);
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if(fmt.substr(i, 3).toUpperCase() === "A/P") { if(dt!=null) q.v = dt.H >= 12 ? fmt.charAt(i+2) : c; q.t = 'T'; hr='h';i+=3;}
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else if(fmt.substr(i,5).toUpperCase() === "AM/PM") { if(dt!=null) q.v = dt.H >= 12 ? "PM" : "AM"; q.t = 'T'; i+=5; hr='h'; }
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else if(fmt.substr(i,5).toUpperCase() === "上午/下午") { if(dt!=null) q.v = dt.H >= 12 ? "下午" : "上午"; q.t = 'T'; i+=5; hr='h'; }
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else { q.t = "t"; ++i; }
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if(dt==null && q.t === 'T') return "";
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out[out.length] = q; lst = c; break;
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case '[':
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o = c;
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while(fmt.charAt(i++) !== ']' && i < fmt.length) o += fmt.charAt(i);
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if(o.slice(-1) !== ']') throw 'unterminated "[" block: |' + o + '|';
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if(o.match(abstime)) {
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if(dt==null) { dt=parse_date_code(v, opts); if(dt==null) return ""; }
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out[out.length] = {t:'Z', v:o.toLowerCase()};
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lst = o.charAt(1);
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} else if(o.indexOf("$") > -1) {
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o = (o.match(/\$([^-\[\]]*)/)||[])[1]||"$";
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if(!fmt_is_date(fmt)) out[out.length] = {t:'t',v:o};
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}
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break;
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/* Numbers */
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case '.':
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if(dt != null) {
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o = c; while(++i < fmt.length && (c=fmt.charAt(i)) === "0") o += c;
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out[out.length] = {t:'s', v:o}; break;
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}
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/* falls through */
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case '0': case '#':
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o = c; while(++i < fmt.length && "0#?.,E+-%".indexOf(c=fmt.charAt(i)) > -1) o += c;
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out[out.length] = {t:'n', v:o}; break;
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case '?':
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o = c; while(fmt.charAt(++i) === c) o+=c;
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out[out.length] = {t:c, v:o}; lst = c; break;
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case '*': ++i; if(fmt.charAt(i) == ' ' || fmt.charAt(i) == '*') ++i; break; // **
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case '(': case ')': out[out.length] = {t:(flen===1?'t':c), v:c}; ++i; break;
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case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':
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o = c; while(i < fmt.length && "0123456789".indexOf(fmt.charAt(++i)) > -1) o+=fmt.charAt(i);
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out[out.length] = {t:'D', v:o}; break;
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case ' ': out[out.length] = {t:c, v:c}; ++i; break;
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case '$': out[out.length] = {t:'t', v:'$'}; ++i; break;
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default:
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if(",$-+/():!^&'~{}<>=€acfijklopqrtuvwxzP".indexOf(c) === -1) throw new Error('unrecognized character ' + c + ' in ' + fmt);
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out[out.length] = {t:'t', v:c}; ++i; break;
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}
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}
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/* Scan for date/time parts */
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var bt = 0, ss0 = 0, ssm;
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for(i=out.length-1, lst='t'; i >= 0; --i) {
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switch(out[i].t) {
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case 'h': case 'H': out[i].t = hr; lst='h'; if(bt < 1) bt = 1; break;
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case 's':
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if((ssm=out[i].v.match(/\.0+$/))) ss0=Math.max(ss0,ssm[0].length-1);
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if(bt < 3) bt = 3;
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/* falls through */
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case 'd': case 'y': case 'M': case 'e': lst=out[i].t; break;
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case 'm': if(lst === 's') { out[i].t = 'M'; if(bt < 2) bt = 2; } break;
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case 'X': /*if(out[i].v === "B2");*/
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break;
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case 'Z':
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if(bt < 1 && out[i].v.match(/[Hh]/)) bt = 1;
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if(bt < 2 && out[i].v.match(/[Mm]/)) bt = 2;
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if(bt < 3 && out[i].v.match(/[Ss]/)) bt = 3;
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}
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}
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/* time rounding depends on presence of minute / second / usec fields */
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if (bt > 0 && bt < 3 && dt.u >= 0.5) {
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round_up_date(dt, opts);
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}
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/* replace fields */
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var replaced = replace_fields(out, dt, ss0, v, opts);
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var nstr = replaced.nstr;
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out = replaced.out;
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var vv = "", myv, ostr;
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if(nstr.length > 0) {
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if(nstr.charCodeAt(0) == 40) /* '(' */ {
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myv = (v<0&&nstr.charCodeAt(0) === 45 ? -v : v);
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ostr = write_num('n', nstr, myv);
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} else {
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myv = (v<0 && flen > 1 ? -v : v);
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ostr = write_num('n', nstr, myv);
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if(myv < 0 && out[0] && out[0].t == 't') {
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ostr = ostr.substr(1);
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out[0].v = "-" + out[0].v;
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}
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}
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var jj=ostr.length-1;
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var decpt = out.length;
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for(i=0; i < out.length; ++i) if(out[i] != null && out[i].t != 't' && out[i].v.indexOf(".") > -1) { decpt = i; break; }
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var lasti=out.length;
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if(decpt === out.length && ostr.indexOf("E") === -1) {
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for(i=out.length-1; i>= 0;--i) {
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if(out[i] == null || 'n?'.indexOf(out[i].t) === -1) continue;
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if(jj>=out[i].v.length-1) { jj -= out[i].v.length; out[i].v = ostr.substr(jj+1, out[i].v.length); }
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else if(jj < 0) out[i].v = "";
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else { out[i].v = ostr.substr(0, jj+1); jj = -1; }
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out[i].t = 't';
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lasti = i;
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}
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if(jj>=0 && lasti<out.length) out[lasti].v = ostr.substr(0,jj+1) + out[lasti].v;
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}
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else if(decpt !== out.length && ostr.indexOf("E") === -1) {
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jj = ostr.indexOf(".")-1;
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for(i=decpt; i>= 0; --i) {
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if(out[i] == null || 'n?'.indexOf(out[i].t) === -1) continue;
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j=out[i].v.indexOf(".")>-1&&i===decpt?out[i].v.indexOf(".")-1:out[i].v.length-1;
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vv = out[i].v.substr(j+1);
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for(; j>=0; --j) {
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if(jj>=0 && (out[i].v.charAt(j) === "0" || out[i].v.charAt(j) === "#")) vv = ostr.charAt(jj--) + vv;
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}
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out[i].v = vv;
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out[i].t = 't';
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lasti = i;
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}
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if(jj>=0 && lasti<out.length) out[lasti].v = ostr.substr(0,jj+1) + out[lasti].v;
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jj = ostr.indexOf(".")+1;
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for(i=decpt; i<out.length; ++i) {
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if(out[i] == null || ('n?('.indexOf(out[i].t) === -1 && i !== decpt)) continue;
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j=out[i].v.indexOf(".")>-1&&i===decpt?out[i].v.indexOf(".")+1:0;
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vv = out[i].v.substr(0,j);
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for(; j<out[i].v.length; ++j) {
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if(jj<ostr.length) vv += ostr.charAt(jj++);
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}
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out[i].v = vv;
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out[i].t = 't';
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lasti = i;
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}
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}
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}
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for(i=0; i<out.length; ++i) if(out[i] != null && 'n?'.indexOf(out[i].t)>-1) {
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myv = (flen >1 && v < 0 && i>0 && out[i-1].v === "-" ? -v:v);
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out[i].v = write_num(out[i].t, out[i].v, myv);
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out[i].t = 't';
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}
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var retval = "";
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for(i=0; i !== out.length; ++i) if(out[i] != null) retval += out[i].v;
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return retval;
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}
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function replace_fields(fields, dt, ss0, v, opts) {
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var out = [];
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for (var i = 0; i < fields.length; i++) {out[i] = {t: fields[i].t, v: fields[i].v};}
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var nstr = "", jj;
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for(i=0; i < out.length; ++i) {
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switch(out[i].t) {
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case 't': case 'T': case ' ': case 'D': break;
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case 'X': out[i].v = ""; out[i].t = ";"; break;
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case 'd': case 'm': case 'y': case 'h': case 'H': case 'M': case 's': case 'e': case 'b': case 'Z':
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/*::if(!dt) throw "unreachable"; */
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try {
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out[i].v = write_date(out[i].t.charCodeAt(0), out[i].v, dt, ss0);
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} catch (e) {
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if (e === ROUNDING_FLAG) {
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round_up_date(dt, opts);
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return replace_fields(fields, dt, ss0, v, opts);
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}
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throw e;
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}
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out[i].t = 't'; break;
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case 'n': case '?':
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jj = i+1;
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while(out[jj] != null && (
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(c=out[jj].t) === "?" || c === "D" ||
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((c === " " || c === "t") && out[jj+1] != null && (out[jj+1].t === '?' || out[jj+1].t === "t" && out[jj+1].v === '/')) ||
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(out[i].t === '(' && (c === ' ' || c === 'n' || c === ')')) ||
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(c === 't' && (out[jj].v === '/' || out[jj].v === ' ' && out[jj+1] != null && out[jj+1].t == '?'))
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)) {
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out[i].v += out[jj].v;
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out[jj] = {v:"", t:";"}; ++jj;
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}
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nstr += out[i].v;
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i = jj-1; break;
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case 'G': out[i].t = 't'; out[i].v = general_fmt(v,opts); break;
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}
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}
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return {nstr: nstr, out: out};
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}
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function round_up_date(out, opts) {
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if (!opts) opts = {};
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var tmp = new Date(out.y, out.m - 1, out.d, out.H, out.M, out.S);
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var oldDate = tmp.getDate();
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tmp.setSeconds(out.S + 1);
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var use1900 = !opts.date1904 && !opts.b2;
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if (tmp.getDate() !== oldDate) {
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if (out.D === 0 && use1900) {
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// 0 corresponds with Jan 0th, 1900
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out.y = 1900;
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out.m = 1;
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out.d = 1;
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out.q = (tmp.getDay() + 6) % 7;
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} else if (out.D === 60 && use1900) {
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// Excel & SSF have an intentional bug where they treat 1900 as a leap year
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// The 60th day (Feb 29) rounds up to Mar 1
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out.y = 1900;
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out.m = 3;
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out.d = 1;
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out.q = 4;
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} else if (out.D == 59 && use1900) {
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// Excel & SSF have an intentional bug where they treat 1900 as a leap year
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// The 59th day (Feb 28) rounds up to Feb 29
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out.y = 1900;
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out.m = 2;
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out.d = 29;
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out.q = 3;
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} else {
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out.y = tmp.getFullYear();
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out.m = tmp.getMonth() + 1;
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out.d = tmp.getDate();
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out.q = out.D < 60 && use1900 ? (tmp.getDay() + 6) % 7 : tmp.getDay();
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}
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out.D += 1;
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}
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out.H = tmp.getHours();
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out.M = tmp.getMinutes();
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out.S = tmp.getSeconds();
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out.u = 0;
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out.T += 1;
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}
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SSF._eval = eval_fmt;
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