SheetJS
35d59c57bf
- `unsafe` option to `cfb_add` for bulk write (see #2) - use `lastIndexOf` to save operations in BFP queue
41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
/* [MS-CFB] 2.6.4 Red-Black Tree */
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function build_full_paths(FI/*:CFBFileIndex*/, FP/*:Array<string>*/, Paths/*:Array<string>*/)/*:void*/ {
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var i = 0, L = 0, R = 0, C = 0, j = 0, pl = Paths.length;
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var dad/*:Array<number>*/ = [], q/*:Array<number>*/ = [];
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for(; i < pl; ++i) { dad[i]=q[i]=i; FP[i]=Paths[i]; }
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for(; j < q.length; ++j) {
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i = q[j];
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L = FI[i].L; R = FI[i].R; C = FI[i].C;
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if(dad[i] === i) {
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if(L !== -1 /*NOSTREAM*/ && dad[L] !== L) dad[i] = dad[L];
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if(R !== -1 && dad[R] !== R) dad[i] = dad[R];
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}
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if(C !== -1 /*NOSTREAM*/) dad[C] = i;
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if(L !== -1) { dad[L] = dad[i]; if(q.lastIndexOf(L) < j) q.push(L); }
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if(R !== -1) { dad[R] = dad[i]; if(q.lastIndexOf(R) < j) q.push(R); }
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}
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for(i=1; i < pl; ++i) if(dad[i] === i) {
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if(R !== -1 /*NOSTREAM*/ && dad[R] !== R) dad[i] = dad[R];
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else if(L !== -1 && dad[L] !== L) dad[i] = dad[L];
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}
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for(i=1; i < pl; ++i) {
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if(FI[i].type === 0 /* unknown */) continue;
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j = dad[i];
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if(j === 0) FP[i] = FP[0] + "/" + FP[i];
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else while(j !== 0 && j !== dad[j]) {
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FP[i] = FP[j] + "/" + FP[i];
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j = dad[j];
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}
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dad[i] = 0;
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}
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FP[0] += "/";
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for(i=1; i < pl; ++i) {
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if(FI[i].type !== 2 /* stream */) FP[i] += "/";
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}
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}
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