rawsql-ts/dist/utils/ParserStringUtils.js

High-performance SQL parser and AST analyzer written in TypeScript. Provides fast parsing and advanced transformation capabilities.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.joinLexemeValues = joinLexemeValues;
const NO_SPACE_BEFORE = new Set([",", ")", "]", "}", ";"]);
const NO_SPACE_AFTER = new Set(["(", "[", "{"]);
/**
 * Join lexeme values into a whitespace-normalized SQL fragment.
 * Keeps punctuation tight while preserving spacing elsewhere.
 */
function joinLexemeValues(lexemes, start, end) {
    var _a, _b;
    let result = "";
    for (let i = start; i < end; i++) {
        const current = lexemes[i];
        if (!current) {
            continue;
        }
        if (result.length === 0) {
            result = current.value;
            continue;
        }
        const previous = (_b = (_a = lexemes[i - 1]) === null || _a === void 0 ? void 0 : _a.value) !== null && _b !== void 0 ? _b : "";
        const omitSpace = NO_SPACE_BEFORE.has(current.value) ||
            NO_SPACE_AFTER.has(previous) ||
            current.value === "." ||
            previous === ".";
        result += omitSpace ? current.value : ` ${current.value}`;
    }
    return result;
}
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