Sainan
49edebc1eb
I'm surprised JavaScript allows circular includes, but they still don't feel good. Reviewed-on: #1468 Co-authored-by: Sainan <63328889+Sainan@users.noreply.github.com> Co-committed-by: Sainan <63328889+Sainan@users.noreply.github.com>
57 lines
1.9 KiB
TypeScript
57 lines
1.9 KiB
TypeScript
import { JSONParse } from "json-with-bigint";
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export const getJSONfromString = <T>(str: string): T => {
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const jsonSubstring = str.substring(0, str.lastIndexOf("}") + 1);
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return JSONParse<T>(jsonSubstring);
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};
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export const getSubstringFromKeyword = (str: string, keyword: string): string => {
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const index = str.indexOf(keyword);
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if (index == -1) {
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throw new Error(`keyword ${keyword} not found in string ${str}`);
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}
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return str.substring(index);
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};
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export const getSubstringFromKeywordToKeyword = (str: string, keywordBegin: string, keywordEnd: string): string => {
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const beginIndex = str.lastIndexOf(keywordBegin) + 1;
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const endIndex = str.indexOf(keywordEnd);
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return str.substring(beginIndex, endIndex + 1);
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};
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export const getIndexAfter = (str: string, searchWord: string): number => {
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const index = str.indexOf(searchWord);
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if (index === -1) {
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return -1;
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}
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return index + searchWord.length;
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};
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// This is FNV1a-32 except operating under modulus 2^31 because JavaScript is stinky and likes producing negative integers out of nowhere.
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export const catBreadHash = (name: string): number => {
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let hash = 2166136261;
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for (let i = 0; i != name.length; ++i) {
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hash = (hash ^ name.charCodeAt(i)) & 0x7fffffff;
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hash = (hash * 16777619) & 0x7fffffff;
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}
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return hash;
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};
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export const regexEscape = (str: string): string => {
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str = str.split(".").join("\\.");
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str = str.split("\\").join("\\\\");
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str = str.split("[").join("\\[");
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str = str.split("]").join("\\]");
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str = str.split("+").join("\\+");
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str = str.split("*").join("\\*");
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str = str.split("$").join("\\$");
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str = str.split("^").join("\\^");
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str = str.split("?").join("\\?");
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str = str.split("|").join("\\|");
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str = str.split("(").join("\\(");
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str = str.split(")").join("\\)");
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str = str.split("{").join("\\{");
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str = str.split("}").join("\\}");
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return str;
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};
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