@secam/pgsql-ast-parser/src/literal-syntaxes/interval-lexer.ts

Fork of pgsql-ast-parser Simple Postgres SQL parser/modifier for pg-mem

import {compile} from 'moo';

// build lexer
export const lexer = compile({
    int: /\d+/,
    neg: '-',
    dot: '.',
    years: /(?:y|yrs?|years?)\b/,
    months: /(?:mon(?:th)?s?)\b/,
    days: /(?:d|days?)\b/,
    hours: /(?:h|hrs?|hours?)\b/,
    minutes: /(?:m|mins?|minutes?)\b/,
    seconds: /(?:s|secs?|seconds?)\b/,
    milliseconds: /(?:ms|milliseconds?)\b/,
    space: { match: /[\s\t\n\v\f\r]+/, lineBreaks: true, },
    colon: ':',
});

lexer.next = (next => () => {
    let tok;
    while ((tok = next.call(lexer)) && (tok.type === 'space')) {
    }
    return tok;
})(lexer.next);

export const lexerAny: any = lexer;