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 "ChoreoInputFormatter.h"
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26 | #include "ChoreoInputSet.h"
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27 |
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28 | static const char TAG_INPUTS_START[] PROGMEM = "\"inputs\":{";
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29 |
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30 | ChoreoInputFormatter::ChoreoInputFormatter(const ChoreoInputSet* inputSet) {
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31 | m_inputSet = inputSet;
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32 | reset();
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33 | }
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34 |
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35 | void ChoreoInputFormatter::reset() {
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36 | m_currentInput = NULL;
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37 | m_nextChar = NULL;
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38 | if (m_inputSet == NULL || m_inputSet->isEmpty()) {
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39 | m_nextState = END;
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40 | } else {
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41 | m_nextState = START;
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42 | }
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43 | }
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44 |
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45 | bool ChoreoInputFormatter::hasNext() {
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46 | return m_nextState != END;
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47 | }
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48 |
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49 | char ChoreoInputFormatter::next() {
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50 | char c;
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51 | switch(m_nextState) {
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52 | case START:
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53 | c = readStartTagChar(TAG_INPUTS_START, INPUTS_TAG);
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54 | break;
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55 |
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56 | case INPUTS_TAG:
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57 | c = readTagChar(NAME_START);
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58 | if (m_nextState == NAME_START) {
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59 | m_currentInput= m_inputSet->getFirstInput();
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60 | }
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61 | break;
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62 |
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63 | case NAME_START:
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64 | c = '"';
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65 | m_nextChar = m_currentInput->getName();
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66 | if ((NULL == m_nextChar) || ('\0' == *m_nextChar)) {
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67 | m_nextState = NAME_END;
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68 | } else {
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69 | m_nextState = NAME;
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70 | }
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71 | break;
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72 |
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73 | case NAME:
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74 | c = readValueChar(NAME_END);
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75 | break;
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76 |
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77 | case NAME_END:
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78 | c = '"';
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79 | m_nextState = NAME_VALUE_SEPARATOR;
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80 | break;
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81 |
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82 | case NAME_VALUE_SEPARATOR:
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83 | c = ':';
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84 | m_nextState = VALUE_START;
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85 | break;
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86 |
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87 | case VALUE_START:
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88 | c = '"';
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89 | m_nextChar = m_currentInput->getValue();
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90 | if ((NULL == m_nextChar) || ('\0' == *m_nextChar)) {
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91 | m_nextState = VALUE_END;
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92 | } else {
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93 | m_nextState = VALUE;
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94 | }
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95 | break;
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96 |
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97 | case VALUE:
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98 | c = readValueChar(VALUE_END);
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99 | break;
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100 |
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101 | case VALUE_END:
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102 | c = '"';
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103 | m_currentInput = m_currentInput->getNext();
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104 | if (m_currentInput != NULL) {
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105 | m_nextState = NEXT_INPUT;
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106 | } else {
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107 | m_nextState = INPUTS_END;
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108 | }
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109 | break;
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110 | case NEXT_INPUT:
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111 | c = ',';
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112 | m_nextChar = m_currentInput->getName();
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113 | m_nextState = NAME_START;
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114 | break;
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115 |
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116 | case INPUTS_END:
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117 | c = '}';
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118 | m_nextState = END;
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119 | break;
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120 | case END:
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121 | default:
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122 | c = '\0';
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123 | }
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124 | return c;
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125 | }
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