Gecko [ c.stage.kornherr.net ]

Linux v69820.1blu.de 4.15.0 #1 SMP Mon Sep 30 15:36:27 MSK 2024 x86_64
Apache/2.4.58
Server IP : 195.90.215.149 & Your IP : 216.73.217.80
Domains : Cant Read [ /etc/named.conf ]
User : www-data

Name	Size	Permission	Date
cst-scalar.d.ts	3.45 KB	-rw-r--r--	2024-02-26 08:46
cst-scalar.js	9.15 KB	-rw-r--r--	2024-02-26 08:46
cst-stringify.d.ts	313 B	-rw-r--r--	2024-02-26 08:46
cst-stringify.js	1.76 KB	-rw-r--r--	2024-02-26 08:46
cst-visit.d.ts	2.22 KB	-rw-r--r--	2024-02-26 08:46
cst-visit.js	3.89 KB	-rw-r--r--	2024-02-26 08:46
cst.d.ts	3.36 KB	-rw-r--r--	2024-02-26 08:46
cst.js	3.17 KB	-rw-r--r--	2024-02-26 08:46
lexer.d.ts	2.86 KB	-rw-r--r--	2024-02-26 08:46
lexer.js	22.92 KB	-rw-r--r--	2024-02-26 08:46
line-counter.d.ts	733 B	-rw-r--r--	2024-02-26 08:46
line-counter.js	1.41 KB	-rw-r--r--	2024-02-26 08:46
parser.d.ts	2.5 KB	-rw-r--r--	2024-02-26 08:46
parser.js	33.71 KB	-rw-r--r--	2024-02-26 08:46

Rename

'use strict';

/**
 * Tracks newlines during parsing in order to provide an efficient API for
 * determining the one-indexed `{ line, col }` position for any offset
 * within the input.
 */
class LineCounter {
    constructor() {
        this.lineStarts = [];
        /**
         * Should be called in ascending order. Otherwise, call
         * `lineCounter.lineStarts.sort()` before calling `linePos()`.
         */
        this.addNewLine = (offset) => this.lineStarts.push(offset);
        /**
         * Performs a binary search and returns the 1-indexed { line, col }
         * position of `offset`. If `line === 0`, `addNewLine` has never been
         * called or `offset` is before the first known newline.
         */
        this.linePos = (offset) => {
            let low = 0;
            let high = this.lineStarts.length;
            while (low < high) {
                const mid = (low + high) >> 1; // Math.floor((low + high) / 2)
                if (this.lineStarts[mid] < offset)
                    low = mid + 1;
                else
                    high = mid;
            }
            if (this.lineStarts[low] === offset)
                return { line: low + 1, col: 1 };
            if (low === 0)
                return { line: 0, col: offset };
            const start = this.lineStarts[low - 1];
            return { line: low, col: offset - start + 1 };
        };
    }
}

exports.LineCounter = LineCounter;