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99 行
2.1 KiB
99 行
2.1 KiB
@{
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println(x) { print(x, "\n"); }
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treeCopy(x) {
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l = {};
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k = _keys(x);
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if (k == null) {
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return clone(x);
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} else {
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for (i in k) {
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l[k[i]] = clone(treeCopy(x[k[i]]));
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}
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return clone(l);
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}
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}
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getId(x) { { identifier: x, __proto__: C_id }; }
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getEnum(x) { { attributeL: null, expression: null, name: getId(x), __proto__: C_enum }; }
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getComma() { { text: ",", comment: { text : " ", __proto__: Comment }, __proto__: Token }; }
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getComment(x) { { text : x, __proto__: Comment }; }
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// adding the element e at the end of the list l
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append(s, e) {
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s[length(s)] = e;
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}
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// add or don't change an element in a dictionnary
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intern(s, e) {
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lo = 0;
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hi = length(s) - 1;
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while (lo <= hi) {
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mid = (lo+hi)/2;
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if (e > s[mid]) lo = mid + 1;
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else if (e < s[mid]) hi = mid - 1;
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else return e;
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}
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for (i = length(s); i > lo; i = i - 1) {
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s[i] = s[i-1];
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}
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return s[lo] = e;
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}
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fusion(s1, s2) {
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for (i in s2) {
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append(s1, s2[i]);
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}
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return s1;
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// return treeCopy(s1);
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}
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// If g then we add a filter on the application of the function f to each element of seq
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map(f, seq, g) {
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out = {};
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if (g) {
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for (i in seq) {
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e = seq[i];
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if (g(e)) { e = f(e); }
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append(out, e);
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}
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} else {
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for (i in seq) {
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append(out, f(seq[i]));
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}
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}
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out;
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}
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notToken(x) { x.__proto__ != Token }
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// Select element e of s if the the result of the application of f on e is true
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select(f, s) {
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out = {};
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for (i in s) {
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e = s[i];
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if (f(e)) { append(out, e); }
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}
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out;
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}
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// Select element e of s if the the result of the application of f on e is false
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reject(f, s) {
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out = {};
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for (i in s) {
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e = s[i];
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if (!f(e)) { append(out, e); }
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}
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out;
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}
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// Get the last element of s
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last(s) {
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s[length(s)-1];
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}
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nil;
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}
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