[136] | 1 | /*
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| 2 | ###############################################################################
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| 3 | #
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| 4 | # Temboo Arduino library
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| 5 | #
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| 6 | # Copyright 2014, Temboo Inc.
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| 7 | #
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| 8 | # Licensed under the Apache License, Version 2.0 (the "License");
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| 9 | # you may not use this file except in compliance with the License.
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| 10 | # You may obtain a copy of the License at
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| 11 | #
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| 12 | # http://www.apache.org/licenses/LICENSE-2.0
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| 13 | #
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| 14 | # Unless required by applicable law or agreed to in writing,
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| 15 | # software distributed under the License is distributed on an
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| 16 | # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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| 17 | # either express or implied. See the License for the specific
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| 18 | # language governing permissions and limitations under the License.
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| 19 | #
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| 20 | ###############################################################################
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| 21 | */
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| 22 |
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| 23 | #include <stddef.h>
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| 24 | #include <avr/pgmspace.h>
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| 25 | #include "ChoreoOutputFormatter.h"
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| 26 | #include "ChoreoOutputSet.h"
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| 27 |
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| 28 | static const char TAG_OUTPUTS_START[] PROGMEM = "\"outputs\":[";
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| 29 | static const char TAG_NAME[] PROGMEM = "\"name\":";
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| 30 | static const char TAG_PATH[] PROGMEM = "\"path\":";
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| 31 | static const char TAG_VAR[] PROGMEM = "\"variable\":";
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| 32 |
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| 33 |
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| 34 | ChoreoOutputFormatter::ChoreoOutputFormatter(const ChoreoOutputSet* outputSet) {
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| 35 | m_outputSet = outputSet;
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| 36 | reset();
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| 37 | }
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| 38 |
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| 39 | void ChoreoOutputFormatter::reset() {
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| 40 | m_currentOutput = NULL;
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| 41 | m_nextChar = NULL;
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| 42 | if (m_outputSet == NULL || m_outputSet->isEmpty()) {
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| 43 | m_nextState = END;
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| 44 | } else {
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| 45 | m_nextState = START;
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| 46 | }
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| 47 | }
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| 48 |
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| 49 | bool ChoreoOutputFormatter::hasNext() {
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| 50 | return m_nextState != END;
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| 51 | }
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| 52 |
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| 53 | char ChoreoOutputFormatter::next() {
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| 54 | char c = '\0';
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| 55 | switch(m_nextState) {
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| 56 | case START:
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| 57 | c = readStartTagChar(TAG_OUTPUTS_START, OUTPUTS_TAG);
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| 58 | break;
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| 59 |
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| 60 | case OUTPUTS_TAG:
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| 61 | c = readTagChar(OUTPUT_START);
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| 62 | if (m_nextState == OUTPUT_START) {
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| 63 | m_currentOutput = m_outputSet->getFirstOutput();
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| 64 | }
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| 65 | break;
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| 66 |
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| 67 | case OUTPUT_START:
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| 68 | c = '{';
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| 69 | m_nextChar = TAG_NAME;
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| 70 | m_nextState = NAME_TAG;
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| 71 | break;
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| 72 |
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| 73 | case NAME_TAG:
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| 74 | c = readTagChar(NAME_START);
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| 75 | break;
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| 76 |
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| 77 | case NAME_START:
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| 78 | c = '"';
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| 79 | m_nextChar = m_currentOutput->getName();
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| 80 | if ((NULL == m_nextChar) || ('\0' == *m_nextChar)) {
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| 81 | m_nextState = NAME_END;
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| 82 | } else {
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| 83 | m_nextState = NAME;
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| 84 | }
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| 85 | break;
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| 86 |
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| 87 | case NAME:
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| 88 | c = readValueChar(NAME_END);
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| 89 | break;
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| 90 |
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| 91 | case NAME_END:
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| 92 | c = '"';
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| 93 | m_nextState = NAME_PATH_SEPARATOR;
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| 94 | break;
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| 95 |
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| 96 | case NAME_PATH_SEPARATOR:
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| 97 | c = ',';
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| 98 | m_nextState = PATH_TAG;
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| 99 | m_nextChar = TAG_PATH;
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| 100 | break;
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| 101 |
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| 102 | case PATH_TAG:
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| 103 | c = readTagChar(PATH_START);
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| 104 | break;
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| 105 |
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| 106 | case PATH_START:
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| 107 | c = '"';
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| 108 | m_nextChar = m_currentOutput->getPath();
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| 109 | if ((NULL == m_nextChar) || ('\0' == *m_nextChar)) {
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| 110 | m_nextState = PATH_END;
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| 111 | } else {
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| 112 | m_nextState = PATH;
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| 113 | }
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| 114 | break;
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| 115 |
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| 116 | case PATH:
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| 117 | c = readValueChar(PATH_END);
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| 118 | break;
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| 119 |
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| 120 | case PATH_END:
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| 121 | c = '"';
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| 122 | m_nextState = PATH_VAR_SEPARATOR;
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| 123 | break;
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| 124 |
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| 125 | case PATH_VAR_SEPARATOR:
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| 126 | c = ',';
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| 127 | m_nextState = VAR_TAG;
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| 128 | m_nextChar = TAG_VAR;
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| 129 | break;
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| 130 |
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| 131 | case VAR_TAG:
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| 132 | c = readTagChar(VAR_START);
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| 133 | break;
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| 134 |
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| 135 | case VAR_START:
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| 136 | c = '"';
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| 137 | m_nextChar = m_currentOutput->getVariable();
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| 138 | if ((NULL == m_nextChar) || ('\0' == *m_nextChar)) {
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| 139 | m_nextState = VAR_END;
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| 140 | } else {
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| 141 | m_nextState = VAR;
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| 142 | }
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| 143 | break;
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| 144 |
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| 145 | case VAR:
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| 146 | c = readValueChar(VAR_END);
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| 147 | break;
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| 148 |
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| 149 | case VAR_END:
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| 150 | c = '"';
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| 151 | m_nextState = OUTPUT_END;
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| 152 | break;
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| 153 |
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| 154 | case OUTPUT_END:
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| 155 | c = '}';
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| 156 | m_currentOutput = m_currentOutput->getNext();
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| 157 | if (m_currentOutput != NULL) {
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| 158 | m_nextState = NEXT_OUTPUT;
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| 159 | } else {
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| 160 | m_nextState = OUTPUTS_END;
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| 161 | }
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| 162 | break;
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| 163 |
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| 164 | case NEXT_OUTPUT:
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| 165 | c = ',';
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| 166 | m_nextChar = m_currentOutput->getName();
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| 167 | m_nextState = OUTPUT_START;
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| 168 | break;
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| 169 |
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| 170 | case OUTPUTS_END:
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| 171 | c = ']';
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| 172 | m_nextState = END;
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| 173 | break;
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| 174 | case END:
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| 175 | default:
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| 176 | c = '\0';
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| 177 | }
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| 178 |
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| 179 | return c;
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| 180 | }
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| 181 |
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