37 lines
1.2 KiB
TypeScript
37 lines
1.2 KiB
TypeScript
import {Array, BooleanData, ExpressionData, Kind} from "../data";
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import {equals} from "../result";
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import {FunctionDefinition} from "./info";
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export const contains: FunctionDefinition = {
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name: "contains",
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description:
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"`contains( search, item )`\n\nReturns `true` if `search` contains `item`. If `search` is an array, this function returns `true` if the `item` is an element in the array. If `search` is a string, this function returns `true` if the `item` is a substring of `search`. This function is not case sensitive. Casts values to a string.",
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minArgs: 2,
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maxArgs: 2,
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call: (...args: ExpressionData[]): ExpressionData => {
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const left = args[0];
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const right = args[1];
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if (left.primitive) {
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const ls = left.coerceString();
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if (right.primitive) {
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const rs = right.coerceString();
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return new BooleanData(ls.toLowerCase().includes(rs.toLowerCase()));
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}
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} else if (left.kind === Kind.Array) {
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const la = left as Array;
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if (la.values().length === 0) {
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return new BooleanData(false);
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}
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for (const v of la.values()) {
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if (equals(right, v)) {
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return new BooleanData(true);
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}
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}
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}
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return new BooleanData(false);
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}
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};
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