taipa/lib/dparser/configuration.js

Taiwanese morphological parsing library

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Configuration = exports.LeftArc = exports.RightArc = exports.Shift = exports.Transition = void 0;
class Transition {
}
exports.Transition = Transition;
class Shift extends Transition {
    do(c) {
        let s = c.queue.shift();
        if (s != undefined) {
            c.stack.push(s);
        }
        return c;
    }
}
exports.Shift = Shift;
class RightArc extends Transition {
    do(c) {
        c.stack.pop();
        return c;
    }
}
exports.RightArc = RightArc;
class LeftArc extends Transition {
    do(c) {
        const top = c.stack.pop();
        c.stack.pop();
        if (top)
            c.stack.push(top);
        return c;
    }
}
exports.LeftArc = LeftArc;
class Configuration {
    queue = new Array();
    stack = new Array();
    relations = new Array();
    getGraph() {
        return this.relations;
    }
    isTerminalConfiguration() {
        if (this.queue.length > 0) {
            return false;
        }
        if (this.stack.length == 1 && this.queue.length == 0) {
            return true;
        }
        return false;
    }
}
exports.Configuration = Configuration;
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