fracturedjsonjs/dist/ScannerState.js

JSON formatter that produces highly readable but fairly compact output

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ScannerState = void 0;
const FracturedJsonError_1 = require("./FracturedJsonError");
/**
 * Class for keeping track of info while scanning text into JSON tokens.
 */
class ScannerState {
    constructor(originalText) {
        this.CurrentPosition = { Index: 0, Row: 0, Column: 0 };
        this.TokenPosition = { Index: 0, Row: 0, Column: 0 };
        this.NonWhitespaceSinceLastNewline = false;
        this._originalText = originalText;
    }
    Advance(isWhitespace) {
        if (this.CurrentPosition.Index >= MaxDocSize)
            throw new Error("Maximum document length exceeded");
        this.CurrentPosition.Index += 1;
        this.CurrentPosition.Column += 1;
        this.NonWhitespaceSinceLastNewline || (this.NonWhitespaceSinceLastNewline = !isWhitespace);
    }
    NewLine() {
        if (this.CurrentPosition.Index >= MaxDocSize)
            throw new Error("Maximum document length exceeded");
        this.CurrentPosition.Index += 1;
        this.CurrentPosition.Row += 1;
        this.CurrentPosition.Column = 0;
        this.NonWhitespaceSinceLastNewline = false;
    }
    SetTokenStart() {
        this.TokenPosition = Object.assign({}, this.CurrentPosition);
    }
    MakeTokenFromBuffer(type, trimEnd = false) {
        const substring = this._originalText.substring(this.TokenPosition.Index, this.CurrentPosition.Index);
        return {
            Type: type,
            Text: (trimEnd) ? substring.trimEnd() : substring,
            InputPosition: Object.assign({}, this.TokenPosition),
        };
    }
    MakeToken(type, text) {
        return {
            Type: type,
            Text: text,
            InputPosition: Object.assign({}, this.TokenPosition),
        };
    }
    Current() {
        return (this.AtEnd()) ? NaN : this._originalText.charCodeAt(this.CurrentPosition.Index);
    }
    AtEnd() {
        return this.CurrentPosition.Index >= this._originalText.length;
    }
    Throw(message) {
        throw new FracturedJsonError_1.FracturedJsonError(message, this.CurrentPosition);
    }
}
exports.ScannerState = ScannerState;
const MaxDocSize = 2000000000;