bottle/main.cpp

Experiment with bottles and properties.

/*
 * Copyright (C) 2006-2020 Istituto Italiano di Tecnologia (IIT)
 * Copyright (C) 2006-2010 RobotCub Consortium
 * All rights reserved.
 *
 * This software may be modified and distributed under the terms of the
 * BSD-3-Clause license. See the accompanying LICENSE file for details.
 */
 
#include <stdio.h>
#include <stdlib.h>
 
#include <yarp/os/Bottle.h>
#include <yarp/os/Property.h>
 
using namespace yarp::os;
 
int main(int argc, char *argv[]) {
 
    Bottle b;
    b.addString("color");
    b.addString("red");
    printf("Bottle b is: %s\n", b.toString().c_str());
    // should give: color red
 
    Bottle b2;
    b2.addString("height");
    b2.addInt32(15);
    printf("Bottle b2 is: %s\n", b2.toString().c_str());
    // should give: height 15
 
    Bottle b3;
    b3.addList() = b;
    b3.addList() = b2;
    printf("Bottle b3 is: %s\n", b3.toString().c_str());
    // should give: (color red) (height 15)
 
    printf("color check: %s\n", b3.find("color").asString().c_str());
    printf("height check: %d\n", b3.find("height").asInt32());
 
    Bottle b4;
    b4.addString("nested");
    b4.addList() = b3;
    printf("Bottle b4 is: %s\n", b4.toString().c_str());
    // should give: nested ((color red) (height 15))
 
    // alternative way to create a Bottle from textual representation
    Bottle b5("(pos left top) (size 10)");
    printf("Bottle b5 is: %s\n", b5.toString().c_str());
    // should give: (pos left top) (size 10)
 
    Bottle b6;
    b6 = b5;
    b6.addList() = b4;
    printf("Bottle b6 is: %s\n", b6.toString().c_str());
    // should give: (pos left top) (size 10) (nested ((color red) (height 5))
 
    printf("size check: %d\n", b6.find("size").asInt32());
    printf("pos check: %s\n", b6.find("pos").asString().c_str());
    // find assumes key->value pairs; for lists, use findGroup
    printf("pos group check: %s\n", b6.findGroup("pos").toString().c_str());
    // see documentation for Bottle::findGroup
    printf("nested check: %s\n", b6.find("nested").toString().c_str());
    printf("nested height check: %d\n", b6.find("nested").find("height").asInt32());
 
 
    printf("\n");
    printf("Relationship of Bottle and Property\n");
    Property subProp;
    subProp.put("hello","there");
    subProp.put("fortytwo",42);
    printf("subProp: %s\n", subProp.toString().c_str());
 
    Value *lst = Value::makeList();
    if (lst==NULL) {
        printf("Failed to allocate list\n");
        return 1;
    }
    lst->asList()->fromString(subProp.toString());
    printf("lst: %s\n", lst->toString().c_str());
 
    Property prop;
    prop.put("height",15);
    prop.put("verbose",1);
    prop.put("sub",lst);
    printf("prop: %s\n", prop.toString().c_str());
 
    return 0;
}