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###############################################################################
#
# Temboo Arduino library
#
# Copyright 2017, Temboo Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
# either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
#
###############################################################################
*/
#include <stddef.h>
#include <avr/pgmspace.h>
#include "ChoreoOutputFormatter.h"
#include "ChoreoOutputSet.h"
static const char TAG_OUTPUTS_START[] PROGMEM = "\"outputs\":[";
static const char TAG_NAME[] PROGMEM = "\"name\":";
static const char TAG_PATH[] PROGMEM = "\"path\":";
static const char TAG_VAR[] PROGMEM = "\"variable\":";
ChoreoOutputFormatter::ChoreoOutputFormatter(const ChoreoOutputSet* outputSet) {
m_outputSet = outputSet;
reset();
}
void ChoreoOutputFormatter::reset() {
m_currentOutput = NULL;
m_nextChar = NULL;
if (m_outputSet == NULL || m_outputSet->isEmpty()) {
m_nextState = END;
} else {
m_nextState = START;
}
}
bool ChoreoOutputFormatter::hasNext() {
return m_nextState != END;
}
char ChoreoOutputFormatter::next() {
char c = '\0';
switch(m_nextState) {
case START:
c = readStartTagChar(TAG_OUTPUTS_START, OUTPUTS_TAG);
break;
case OUTPUTS_TAG:
c = readTagChar(OUTPUT_START);
if (m_nextState == OUTPUT_START) {
m_currentOutput = m_outputSet->getFirstOutput();
}
break;
case OUTPUT_START:
c = '{';
m_nextChar = TAG_NAME;
m_nextState = NAME_TAG;
break;
case NAME_TAG:
c = readTagChar(NAME_START);
break;
case NAME_START:
c = '"';
m_nextChar = m_currentOutput->getName();
if ((NULL == m_nextChar) || ('\0' == *m_nextChar)) {
m_nextState = NAME_END;
} else {
m_nextState = NAME;
}
break;
case NAME:
c = readValueChar(NAME_END);
break;
case NAME_END:
c = '"';
m_nextState = NAME_PATH_SEPARATOR;
break;
case NAME_PATH_SEPARATOR:
c = ',';
m_nextState = PATH_TAG;
m_nextChar = TAG_PATH;
break;
case PATH_TAG:
c = readTagChar(PATH_START);
break;
case PATH_START:
c = '"';
m_nextChar = m_currentOutput->getPath();
if ((NULL == m_nextChar) || ('\0' == *m_nextChar)) {
m_nextState = PATH_END;
} else {
m_nextState = PATH;
}
break;
case PATH:
c = readValueChar(PATH_END);
break;
case PATH_END:
c = '"';
m_nextState = PATH_VAR_SEPARATOR;
break;
case PATH_VAR_SEPARATOR:
c = ',';
m_nextState = VAR_TAG;
m_nextChar = TAG_VAR;
break;
case VAR_TAG:
c = readTagChar(VAR_START);
break;
case VAR_START:
c = '"';
m_nextChar = m_currentOutput->getVariable();
if ((NULL == m_nextChar) || ('\0' == *m_nextChar)) {
m_nextState = VAR_END;
} else {
m_nextState = VAR;
}
break;
case VAR:
c = readValueChar(VAR_END);
break;
case VAR_END:
c = '"';
m_nextState = OUTPUT_END;
break;
case OUTPUT_END:
c = '}';
m_currentOutput = m_currentOutput->getNext();
if (m_currentOutput != NULL) {
m_nextState = NEXT_OUTPUT;
} else {
m_nextState = OUTPUTS_END;
}
break;
case NEXT_OUTPUT:
c = ',';
m_nextChar = m_currentOutput->getName();
m_nextState = OUTPUT_START;
break;
case OUTPUTS_END:
c = ']';
m_nextState = END;
break;
case END:
default:
c = '\0';
}
return c;
}
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