1 | |
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2 | #include "yaml_private.h" |
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3 | |
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4 | /* |
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5 | * Flush the buffer if needed. |
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6 | */ |
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7 | |
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8 | #define FLUSH(emitter) \ |
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9 | ((emitter->buffer.pointer+5 < emitter->buffer.end) \ |
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10 | || yaml_emitter_flush(emitter)) |
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11 | |
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12 | /* |
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13 | * Put a character to the output buffer. |
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14 | */ |
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15 | |
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16 | #define PUT(emitter,value) \ |
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17 | (FLUSH(emitter) \ |
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18 | && (*(emitter->buffer.pointer++) = (yaml_char_t)(value), \ |
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19 | emitter->column ++, \ |
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20 | 1)) |
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21 | |
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22 | /* |
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23 | * Put a line break to the output buffer. |
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24 | */ |
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25 | |
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26 | #define PUT_BREAK(emitter) \ |
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27 | (FLUSH(emitter) \ |
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28 | && ((emitter->line_break == YAML_CR_BREAK ? \ |
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29 | (*(emitter->buffer.pointer++) = (yaml_char_t) '\r') : \ |
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30 | emitter->line_break == YAML_LN_BREAK ? \ |
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31 | (*(emitter->buffer.pointer++) = (yaml_char_t) '\n') : \ |
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32 | emitter->line_break == YAML_CRLN_BREAK ? \ |
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33 | (*(emitter->buffer.pointer++) = (yaml_char_t) '\r', \ |
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34 | *(emitter->buffer.pointer++) = (yaml_char_t) '\n') : 0), \ |
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35 | emitter->column = 0, \ |
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36 | emitter->line ++, \ |
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37 | 1)) |
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38 | |
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39 | /* |
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40 | * Copy a character from a string into buffer. |
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41 | */ |
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42 | |
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43 | #define WRITE(emitter,string) \ |
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44 | (FLUSH(emitter) \ |
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45 | && (COPY(emitter->buffer,string), \ |
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46 | emitter->column ++, \ |
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47 | 1)) |
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48 | |
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49 | /* |
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50 | * Copy a line break character from a string into buffer. |
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51 | */ |
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52 | |
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53 | #define WRITE_BREAK(emitter,string) \ |
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54 | (FLUSH(emitter) \ |
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55 | && (CHECK(string,'\n') ? \ |
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56 | (PUT_BREAK(emitter), \ |
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57 | string.pointer ++, \ |
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58 | 1) : \ |
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59 | (COPY(emitter->buffer,string), \ |
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60 | emitter->column = 0, \ |
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61 | emitter->line ++, \ |
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62 | 1))) |
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63 | |
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64 | /* |
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65 | * API functions. |
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66 | */ |
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67 | |
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68 | YAML_DECLARE(int) |
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69 | yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event); |
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70 | |
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71 | /* |
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72 | * Utility functions. |
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73 | */ |
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74 | |
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75 | static int |
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76 | yaml_emitter_set_emitter_error(yaml_emitter_t *emitter, const char *problem); |
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77 | |
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78 | static int |
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79 | yaml_emitter_need_more_events(yaml_emitter_t *emitter); |
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80 | |
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81 | static int |
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82 | yaml_emitter_append_tag_directive(yaml_emitter_t *emitter, |
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83 | yaml_tag_directive_t value, int allow_duplicates); |
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84 | |
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85 | static int |
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86 | yaml_emitter_increase_indent(yaml_emitter_t *emitter, |
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87 | int flow, int indentless); |
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88 | |
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89 | /* |
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90 | * State functions. |
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91 | */ |
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92 | |
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93 | static int |
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94 | yaml_emitter_state_machine(yaml_emitter_t *emitter, yaml_event_t *event); |
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95 | |
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96 | static int |
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97 | yaml_emitter_emit_stream_start(yaml_emitter_t *emitter, |
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98 | yaml_event_t *event); |
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99 | |
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100 | static int |
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101 | yaml_emitter_emit_document_start(yaml_emitter_t *emitter, |
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102 | yaml_event_t *event, int first); |
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103 | |
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104 | static int |
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105 | yaml_emitter_emit_document_content(yaml_emitter_t *emitter, |
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106 | yaml_event_t *event); |
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107 | |
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108 | static int |
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109 | yaml_emitter_emit_document_end(yaml_emitter_t *emitter, |
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110 | yaml_event_t *event); |
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111 | |
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112 | static int |
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113 | yaml_emitter_emit_flow_sequence_item(yaml_emitter_t *emitter, |
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114 | yaml_event_t *event, int first); |
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115 | |
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116 | static int |
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117 | yaml_emitter_emit_flow_mapping_key(yaml_emitter_t *emitter, |
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118 | yaml_event_t *event, int first); |
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119 | |
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120 | static int |
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121 | yaml_emitter_emit_flow_mapping_value(yaml_emitter_t *emitter, |
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122 | yaml_event_t *event, int simple); |
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123 | |
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124 | static int |
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125 | yaml_emitter_emit_block_sequence_item(yaml_emitter_t *emitter, |
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126 | yaml_event_t *event, int first); |
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127 | |
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128 | static int |
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129 | yaml_emitter_emit_block_mapping_key(yaml_emitter_t *emitter, |
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130 | yaml_event_t *event, int first); |
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131 | |
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132 | static int |
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133 | yaml_emitter_emit_block_mapping_value(yaml_emitter_t *emitter, |
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134 | yaml_event_t *event, int simple); |
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135 | |
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136 | static int |
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137 | yaml_emitter_emit_node(yaml_emitter_t *emitter, yaml_event_t *event, |
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138 | int root, int sequence, int mapping, int simple_key); |
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139 | |
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140 | static int |
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141 | yaml_emitter_emit_alias(yaml_emitter_t *emitter, yaml_event_t *event); |
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142 | |
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143 | static int |
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144 | yaml_emitter_emit_scalar(yaml_emitter_t *emitter, yaml_event_t *event); |
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145 | |
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146 | static int |
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147 | yaml_emitter_emit_sequence_start(yaml_emitter_t *emitter, yaml_event_t *event); |
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148 | |
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149 | static int |
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150 | yaml_emitter_emit_mapping_start(yaml_emitter_t *emitter, yaml_event_t *event); |
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151 | |
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152 | /* |
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153 | * Checkers. |
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154 | */ |
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155 | |
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156 | static int |
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157 | yaml_emitter_check_empty_document(yaml_emitter_t *emitter); |
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158 | |
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159 | static int |
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160 | yaml_emitter_check_empty_sequence(yaml_emitter_t *emitter); |
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161 | |
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162 | static int |
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163 | yaml_emitter_check_empty_mapping(yaml_emitter_t *emitter); |
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164 | |
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165 | static int |
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166 | yaml_emitter_check_simple_key(yaml_emitter_t *emitter); |
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167 | |
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168 | static int |
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169 | yaml_emitter_select_scalar_style(yaml_emitter_t *emitter, yaml_event_t *event); |
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170 | |
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171 | /* |
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172 | * Processors. |
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173 | */ |
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174 | |
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175 | static int |
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176 | yaml_emitter_process_anchor(yaml_emitter_t *emitter); |
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177 | |
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178 | static int |
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179 | yaml_emitter_process_tag(yaml_emitter_t *emitter); |
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180 | |
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181 | static int |
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182 | yaml_emitter_process_scalar(yaml_emitter_t *emitter); |
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183 | |
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184 | /* |
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185 | * Analyzers. |
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186 | */ |
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187 | |
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188 | static int |
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189 | yaml_emitter_analyze_version_directive(yaml_emitter_t *emitter, |
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190 | yaml_version_directive_t version_directive); |
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191 | |
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192 | static int |
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193 | yaml_emitter_analyze_tag_directive(yaml_emitter_t *emitter, |
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194 | yaml_tag_directive_t tag_directive); |
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195 | |
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196 | static int |
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197 | yaml_emitter_analyze_anchor(yaml_emitter_t *emitter, |
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198 | yaml_char_t *anchor, int alias); |
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199 | |
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200 | static int |
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201 | yaml_emitter_analyze_tag(yaml_emitter_t *emitter, |
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202 | yaml_char_t *tag); |
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203 | |
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204 | static int |
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205 | yaml_emitter_analyze_scalar(yaml_emitter_t *emitter, |
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206 | yaml_char_t *value, size_t length); |
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207 | |
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208 | static int |
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209 | yaml_emitter_analyze_event(yaml_emitter_t *emitter, |
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210 | yaml_event_t *event); |
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211 | |
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212 | /* |
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213 | * Writers. |
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214 | */ |
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215 | |
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216 | static int |
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217 | yaml_emitter_write_bom(yaml_emitter_t *emitter); |
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218 | |
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219 | static int |
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220 | yaml_emitter_write_indent(yaml_emitter_t *emitter); |
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221 | |
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222 | static int |
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223 | yaml_emitter_write_indicator(yaml_emitter_t *emitter, |
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224 | char *indicator, int need_whitespace, |
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225 | int is_whitespace, int is_indention); |
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226 | |
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227 | static int |
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228 | yaml_emitter_write_anchor(yaml_emitter_t *emitter, |
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229 | yaml_char_t *value, size_t length); |
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230 | |
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231 | static int |
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232 | yaml_emitter_write_tag_handle(yaml_emitter_t *emitter, |
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233 | yaml_char_t *value, size_t length); |
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234 | |
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235 | static int |
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236 | yaml_emitter_write_tag_content(yaml_emitter_t *emitter, |
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237 | yaml_char_t *value, size_t length, int need_whitespace); |
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238 | |
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239 | static int |
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240 | yaml_emitter_write_plain_scalar(yaml_emitter_t *emitter, |
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241 | yaml_char_t *value, size_t length, int allow_breaks); |
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242 | |
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243 | static int |
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244 | yaml_emitter_write_single_quoted_scalar(yaml_emitter_t *emitter, |
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245 | yaml_char_t *value, size_t length, int allow_breaks); |
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246 | |
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247 | static int |
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248 | yaml_emitter_write_double_quoted_scalar(yaml_emitter_t *emitter, |
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249 | yaml_char_t *value, size_t length, int allow_breaks); |
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250 | |
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251 | static int |
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252 | yaml_emitter_determine_chomping(yaml_emitter_t *emitter, |
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253 | yaml_string_t string); |
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254 | |
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255 | static int |
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256 | yaml_emitter_write_literal_scalar(yaml_emitter_t *emitter, |
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257 | yaml_char_t *value, size_t length); |
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258 | |
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259 | static int |
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260 | yaml_emitter_write_folded_scalar(yaml_emitter_t *emitter, |
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261 | yaml_char_t *value, size_t length); |
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262 | |
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263 | /* |
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264 | * Set an emitter error and return 0. |
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265 | */ |
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266 | |
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267 | static int |
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268 | yaml_emitter_set_emitter_error(yaml_emitter_t *emitter, const char *problem) |
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269 | { |
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270 | emitter->error = YAML_EMITTER_ERROR; |
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271 | emitter->problem = problem; |
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272 | |
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273 | return 0; |
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274 | } |
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275 | |
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276 | /* |
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277 | * Emit an event. |
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278 | */ |
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279 | |
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280 | YAML_DECLARE(int) |
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281 | yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event) |
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282 | { |
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283 | if (!ENQUEUE(emitter, emitter->events, *event)) { |
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284 | yaml_event_delete(event); |
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285 | return 0; |
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286 | } |
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287 | |
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288 | while (!yaml_emitter_need_more_events(emitter)) { |
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289 | if (!yaml_emitter_analyze_event(emitter, emitter->events.head)) |
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290 | return 0; |
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291 | if (!yaml_emitter_state_machine(emitter, emitter->events.head)) |
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292 | return 0; |
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293 | yaml_event_delete(&DEQUEUE(emitter, emitter->events)); |
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294 | } |
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295 | |
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296 | return 1; |
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297 | } |
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298 | |
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299 | /* |
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300 | * Check if we need to accumulate more events before emitting. |
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301 | * |
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302 | * We accumulate extra |
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303 | * - 1 event for DOCUMENT-START |
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304 | * - 2 events for SEQUENCE-START |
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305 | * - 3 events for MAPPING-START |
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306 | */ |
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307 | |
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308 | static int |
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309 | yaml_emitter_need_more_events(yaml_emitter_t *emitter) |
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310 | { |
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311 | int level = 0; |
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312 | int accumulate = 0; |
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313 | yaml_event_t *event; |
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314 | |
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315 | if (QUEUE_EMPTY(emitter, emitter->events)) |
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316 | return 1; |
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317 | |
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318 | switch (emitter->events.head->type) { |
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319 | case YAML_DOCUMENT_START_EVENT: |
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320 | accumulate = 1; |
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321 | break; |
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322 | case YAML_SEQUENCE_START_EVENT: |
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323 | accumulate = 2; |
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324 | break; |
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325 | case YAML_MAPPING_START_EVENT: |
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326 | accumulate = 3; |
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327 | break; |
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328 | default: |
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329 | return 0; |
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330 | } |
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331 | |
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332 | if (emitter->events.tail - emitter->events.head > accumulate) |
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333 | return 0; |
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334 | |
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335 | for (event = emitter->events.head; event != emitter->events.tail; event ++) { |
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336 | switch (event->type) { |
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337 | case YAML_STREAM_START_EVENT: |
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338 | case YAML_DOCUMENT_START_EVENT: |
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339 | case YAML_SEQUENCE_START_EVENT: |
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340 | case YAML_MAPPING_START_EVENT: |
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341 | level += 1; |
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342 | break; |
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343 | case YAML_STREAM_END_EVENT: |
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344 | case YAML_DOCUMENT_END_EVENT: |
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345 | case YAML_SEQUENCE_END_EVENT: |
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346 | case YAML_MAPPING_END_EVENT: |
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347 | level -= 1; |
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348 | break; |
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349 | default: |
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350 | break; |
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351 | } |
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352 | if (!level) |
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353 | return 0; |
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354 | } |
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355 | |
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356 | return 1; |
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357 | } |
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358 | |
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359 | /* |
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360 | * Append a directive to the directives stack. |
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361 | */ |
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362 | |
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363 | static int |
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364 | yaml_emitter_append_tag_directive(yaml_emitter_t *emitter, |
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365 | yaml_tag_directive_t value, int allow_duplicates) |
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366 | { |
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367 | yaml_tag_directive_t *tag_directive; |
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368 | yaml_tag_directive_t copy = { NULL, NULL }; |
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369 | |
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370 | for (tag_directive = emitter->tag_directives.start; |
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371 | tag_directive != emitter->tag_directives.top; tag_directive ++) { |
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372 | if (strcmp((char *)value.handle, (char *)tag_directive->handle) == 0) { |
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373 | if (allow_duplicates) |
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374 | return 1; |
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375 | return yaml_emitter_set_emitter_error(emitter, |
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376 | "duplicate %TAG directive"); |
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377 | } |
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378 | } |
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379 | |
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380 | copy.handle = yaml_strdup(value.handle); |
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381 | copy.prefix = yaml_strdup(value.prefix); |
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382 | if (!copy.handle || !copy.prefix) { |
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383 | emitter->error = YAML_MEMORY_ERROR; |
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384 | goto error; |
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385 | } |
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386 | |
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387 | if (!PUSH(emitter, emitter->tag_directives, copy)) |
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388 | goto error; |
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389 | |
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390 | return 1; |
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391 | |
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392 | error: |
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393 | yaml_free(copy.handle); |
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394 | yaml_free(copy.prefix); |
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395 | return 0; |
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396 | } |
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397 | |
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398 | /* |
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399 | * Increase the indentation level. |
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400 | */ |
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401 | |
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402 | static int |
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403 | yaml_emitter_increase_indent(yaml_emitter_t *emitter, |
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404 | int flow, int indentless) |
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405 | { |
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406 | if (!PUSH(emitter, emitter->indents, emitter->indent)) |
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407 | return 0; |
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408 | |
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409 | if (emitter->indent < 0) { |
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410 | emitter->indent = flow ? emitter->best_indent : 0; |
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411 | } |
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412 | else if (!indentless) { |
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413 | emitter->indent += emitter->best_indent; |
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414 | } |
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415 | |
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416 | return 1; |
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417 | } |
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418 | |
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419 | /* |
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420 | * State dispatcher. |
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421 | */ |
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422 | |
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423 | static int |
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424 | yaml_emitter_state_machine(yaml_emitter_t *emitter, yaml_event_t *event) |
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425 | { |
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426 | switch (emitter->state) |
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427 | { |
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428 | case YAML_EMIT_STREAM_START_STATE: |
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429 | return yaml_emitter_emit_stream_start(emitter, event); |
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430 | |
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431 | case YAML_EMIT_FIRST_DOCUMENT_START_STATE: |
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432 | return yaml_emitter_emit_document_start(emitter, event, 1); |
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433 | |
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434 | case YAML_EMIT_DOCUMENT_START_STATE: |
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435 | return yaml_emitter_emit_document_start(emitter, event, 0); |
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436 | |
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437 | case YAML_EMIT_DOCUMENT_CONTENT_STATE: |
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438 | return yaml_emitter_emit_document_content(emitter, event); |
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439 | |
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440 | case YAML_EMIT_DOCUMENT_END_STATE: |
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441 | return yaml_emitter_emit_document_end(emitter, event); |
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442 | |
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443 | case YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE: |
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444 | return yaml_emitter_emit_flow_sequence_item(emitter, event, 1); |
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445 | |
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446 | case YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE: |
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447 | return yaml_emitter_emit_flow_sequence_item(emitter, event, 0); |
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448 | |
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449 | case YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE: |
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450 | return yaml_emitter_emit_flow_mapping_key(emitter, event, 1); |
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451 | |
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452 | case YAML_EMIT_FLOW_MAPPING_KEY_STATE: |
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453 | return yaml_emitter_emit_flow_mapping_key(emitter, event, 0); |
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454 | |
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455 | case YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE: |
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456 | return yaml_emitter_emit_flow_mapping_value(emitter, event, 1); |
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457 | |
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458 | case YAML_EMIT_FLOW_MAPPING_VALUE_STATE: |
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459 | return yaml_emitter_emit_flow_mapping_value(emitter, event, 0); |
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460 | |
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461 | case YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE: |
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462 | return yaml_emitter_emit_block_sequence_item(emitter, event, 1); |
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463 | |
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464 | case YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE: |
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465 | return yaml_emitter_emit_block_sequence_item(emitter, event, 0); |
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466 | |
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467 | case YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE: |
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468 | return yaml_emitter_emit_block_mapping_key(emitter, event, 1); |
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469 | |
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470 | case YAML_EMIT_BLOCK_MAPPING_KEY_STATE: |
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471 | return yaml_emitter_emit_block_mapping_key(emitter, event, 0); |
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472 | |
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473 | case YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE: |
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474 | return yaml_emitter_emit_block_mapping_value(emitter, event, 1); |
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475 | |
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476 | case YAML_EMIT_BLOCK_MAPPING_VALUE_STATE: |
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477 | return yaml_emitter_emit_block_mapping_value(emitter, event, 0); |
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478 | |
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479 | case YAML_EMIT_END_STATE: |
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480 | return yaml_emitter_set_emitter_error(emitter, |
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481 | "expected nothing after STREAM-END"); |
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482 | |
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483 | default: |
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484 | assert(1); /* Invalid state. */ |
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485 | } |
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486 | |
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487 | return 0; |
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488 | } |
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489 | |
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490 | /* |
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491 | * Expect STREAM-START. |
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492 | */ |
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493 | |
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494 | static int |
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495 | yaml_emitter_emit_stream_start(yaml_emitter_t *emitter, |
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496 | yaml_event_t *event) |
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497 | { |
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498 | if (event->type == YAML_STREAM_START_EVENT) |
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499 | { |
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500 | if (!emitter->encoding) { |
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501 | emitter->encoding = event->data.stream_start.encoding; |
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502 | } |
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503 | |
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504 | if (!emitter->encoding) { |
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505 | emitter->encoding = YAML_UTF8_ENCODING; |
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506 | } |
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507 | |
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508 | if (emitter->best_indent < 2 || emitter->best_indent > 9) { |
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509 | emitter->best_indent = 2; |
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510 | } |
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511 | |
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512 | if (emitter->best_width >= 0 |
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513 | && emitter->best_width <= emitter->best_indent*2) { |
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514 | emitter->best_width = 80; |
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515 | } |
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516 | |
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517 | if (emitter->best_width < 0) { |
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518 | emitter->best_width = INT_MAX; |
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519 | } |
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520 | |
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521 | if (!emitter->line_break) { |
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522 | emitter->line_break = YAML_LN_BREAK; |
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523 | } |
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524 | |
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525 | emitter->indent = -1; |
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526 | |
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527 | emitter->line = 0; |
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528 | emitter->column = 0; |
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529 | emitter->whitespace = 1; |
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530 | emitter->indention = 1; |
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531 | |
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532 | if (emitter->encoding != YAML_UTF8_ENCODING) { |
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533 | if (!yaml_emitter_write_bom(emitter)) |
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534 | return 0; |
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535 | } |
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536 | |
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537 | emitter->state = YAML_EMIT_FIRST_DOCUMENT_START_STATE; |
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538 | |
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539 | return 1; |
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540 | } |
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541 | |
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542 | return yaml_emitter_set_emitter_error(emitter, |
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543 | "expected STREAM-START"); |
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544 | } |
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545 | |
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546 | /* |
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547 | * Expect DOCUMENT-START or STREAM-END. |
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548 | */ |
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549 | |
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550 | static int |
---|
551 | yaml_emitter_emit_document_start(yaml_emitter_t *emitter, |
---|
552 | yaml_event_t *event, int first) |
---|
553 | { |
---|
554 | if (event->type == YAML_DOCUMENT_START_EVENT) |
---|
555 | { |
---|
556 | yaml_tag_directive_t default_tag_directives[] = { |
---|
557 | {(yaml_char_t *)"!", (yaml_char_t *)"!"}, |
---|
558 | {(yaml_char_t *)"!!", (yaml_char_t *)"tag:yaml.org,2002:"}, |
---|
559 | {NULL, NULL} |
---|
560 | }; |
---|
561 | yaml_tag_directive_t *tag_directive; |
---|
562 | int implicit; |
---|
563 | |
---|
564 | if (event->data.document_start.version_directive) { |
---|
565 | if (!yaml_emitter_analyze_version_directive(emitter, |
---|
566 | *event->data.document_start.version_directive)) |
---|
567 | return 0; |
---|
568 | } |
---|
569 | |
---|
570 | for (tag_directive = event->data.document_start.tag_directives.start; |
---|
571 | tag_directive != event->data.document_start.tag_directives.end; |
---|
572 | tag_directive ++) { |
---|
573 | if (!yaml_emitter_analyze_tag_directive(emitter, *tag_directive)) |
---|
574 | return 0; |
---|
575 | if (!yaml_emitter_append_tag_directive(emitter, *tag_directive, 0)) |
---|
576 | return 0; |
---|
577 | } |
---|
578 | |
---|
579 | for (tag_directive = default_tag_directives; |
---|
580 | tag_directive->handle; tag_directive ++) { |
---|
581 | if (!yaml_emitter_append_tag_directive(emitter, *tag_directive, 1)) |
---|
582 | return 0; |
---|
583 | } |
---|
584 | |
---|
585 | implicit = event->data.document_start.implicit; |
---|
586 | if (!first || emitter->canonical) { |
---|
587 | implicit = 0; |
---|
588 | } |
---|
589 | |
---|
590 | if (event->data.document_start.version_directive) { |
---|
591 | implicit = 0; |
---|
592 | if (!yaml_emitter_write_indicator(emitter, "%YAML", 1, 0, 0)) |
---|
593 | return 0; |
---|
594 | if (!yaml_emitter_write_indicator(emitter, "1.1", 1, 0, 0)) |
---|
595 | return 0; |
---|
596 | if (!yaml_emitter_write_indent(emitter)) |
---|
597 | return 0; |
---|
598 | } |
---|
599 | |
---|
600 | if (event->data.document_start.tag_directives.start |
---|
601 | != event->data.document_start.tag_directives.end) { |
---|
602 | implicit = 0; |
---|
603 | for (tag_directive = event->data.document_start.tag_directives.start; |
---|
604 | tag_directive != event->data.document_start.tag_directives.end; |
---|
605 | tag_directive ++) { |
---|
606 | if (!yaml_emitter_write_indicator(emitter, "%TAG", 1, 0, 0)) |
---|
607 | return 0; |
---|
608 | if (!yaml_emitter_write_tag_handle(emitter, tag_directive->handle, |
---|
609 | strlen((char *)tag_directive->handle))) |
---|
610 | return 0; |
---|
611 | if (!yaml_emitter_write_tag_content(emitter, tag_directive->prefix, |
---|
612 | strlen((char *)tag_directive->prefix), 1)) |
---|
613 | return 0; |
---|
614 | if (!yaml_emitter_write_indent(emitter)) |
---|
615 | return 0; |
---|
616 | } |
---|
617 | } |
---|
618 | |
---|
619 | if (yaml_emitter_check_empty_document(emitter)) { |
---|
620 | implicit = 0; |
---|
621 | } |
---|
622 | |
---|
623 | if (!implicit) { |
---|
624 | if (!yaml_emitter_write_indent(emitter)) |
---|
625 | return 0; |
---|
626 | if (!yaml_emitter_write_indicator(emitter, "---", 1, 0, 0)) |
---|
627 | return 0; |
---|
628 | if (emitter->canonical) { |
---|
629 | if (!yaml_emitter_write_indent(emitter)) |
---|
630 | return 0; |
---|
631 | } |
---|
632 | } |
---|
633 | |
---|
634 | emitter->state = YAML_EMIT_DOCUMENT_CONTENT_STATE; |
---|
635 | |
---|
636 | return 1; |
---|
637 | } |
---|
638 | |
---|
639 | else if (event->type == YAML_STREAM_END_EVENT) |
---|
640 | { |
---|
641 | if (!yaml_emitter_flush(emitter)) |
---|
642 | return 0; |
---|
643 | |
---|
644 | emitter->state = YAML_EMIT_END_STATE; |
---|
645 | |
---|
646 | return 1; |
---|
647 | } |
---|
648 | |
---|
649 | return yaml_emitter_set_emitter_error(emitter, |
---|
650 | "expected DOCUMENT-START or STREAM-END"); |
---|
651 | } |
---|
652 | |
---|
653 | /* |
---|
654 | * Expect the root node. |
---|
655 | */ |
---|
656 | |
---|
657 | static int |
---|
658 | yaml_emitter_emit_document_content(yaml_emitter_t *emitter, |
---|
659 | yaml_event_t *event) |
---|
660 | { |
---|
661 | if (!PUSH(emitter, emitter->states, YAML_EMIT_DOCUMENT_END_STATE)) |
---|
662 | return 0; |
---|
663 | |
---|
664 | return yaml_emitter_emit_node(emitter, event, 1, 0, 0, 0); |
---|
665 | } |
---|
666 | |
---|
667 | /* |
---|
668 | * Expect DOCUMENT-END. |
---|
669 | */ |
---|
670 | |
---|
671 | static int |
---|
672 | yaml_emitter_emit_document_end(yaml_emitter_t *emitter, |
---|
673 | yaml_event_t *event) |
---|
674 | { |
---|
675 | if (event->type == YAML_DOCUMENT_END_EVENT) |
---|
676 | { |
---|
677 | if (!yaml_emitter_write_indent(emitter)) |
---|
678 | return 0; |
---|
679 | if (!event->data.document_end.implicit) { |
---|
680 | if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0)) |
---|
681 | return 0; |
---|
682 | if (!yaml_emitter_write_indent(emitter)) |
---|
683 | return 0; |
---|
684 | } |
---|
685 | if (!yaml_emitter_flush(emitter)) |
---|
686 | return 0; |
---|
687 | |
---|
688 | emitter->state = YAML_EMIT_DOCUMENT_START_STATE; |
---|
689 | |
---|
690 | while (!STACK_EMPTY(emitter, emitter->tag_directives)) { |
---|
691 | yaml_tag_directive_t tag_directive = POP(emitter, |
---|
692 | emitter->tag_directives); |
---|
693 | yaml_free(tag_directive.handle); |
---|
694 | yaml_free(tag_directive.prefix); |
---|
695 | } |
---|
696 | |
---|
697 | return 1; |
---|
698 | } |
---|
699 | |
---|
700 | return yaml_emitter_set_emitter_error(emitter, |
---|
701 | "expected DOCUMENT-END"); |
---|
702 | } |
---|
703 | |
---|
704 | /* |
---|
705 | * |
---|
706 | * Expect a flow item node. |
---|
707 | */ |
---|
708 | |
---|
709 | static int |
---|
710 | yaml_emitter_emit_flow_sequence_item(yaml_emitter_t *emitter, |
---|
711 | yaml_event_t *event, int first) |
---|
712 | { |
---|
713 | if (first) |
---|
714 | { |
---|
715 | if (!yaml_emitter_write_indicator(emitter, "[", 1, 1, 0)) |
---|
716 | return 0; |
---|
717 | if (!yaml_emitter_increase_indent(emitter, 1, 0)) |
---|
718 | return 0; |
---|
719 | emitter->flow_level ++; |
---|
720 | } |
---|
721 | |
---|
722 | if (event->type == YAML_SEQUENCE_END_EVENT) |
---|
723 | { |
---|
724 | emitter->flow_level --; |
---|
725 | emitter->indent = POP(emitter, emitter->indents); |
---|
726 | if (emitter->canonical && !first) { |
---|
727 | if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) |
---|
728 | return 0; |
---|
729 | if (!yaml_emitter_write_indent(emitter)) |
---|
730 | return 0; |
---|
731 | } |
---|
732 | if (!yaml_emitter_write_indicator(emitter, "]", 0, 0, 0)) |
---|
733 | return 0; |
---|
734 | emitter->state = POP(emitter, emitter->states); |
---|
735 | |
---|
736 | return 1; |
---|
737 | } |
---|
738 | |
---|
739 | if (!first) { |
---|
740 | if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) |
---|
741 | return 0; |
---|
742 | } |
---|
743 | |
---|
744 | if (emitter->canonical || emitter->column > emitter->best_width) { |
---|
745 | if (!yaml_emitter_write_indent(emitter)) |
---|
746 | return 0; |
---|
747 | } |
---|
748 | if (!PUSH(emitter, emitter->states, YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE)) |
---|
749 | return 0; |
---|
750 | |
---|
751 | return yaml_emitter_emit_node(emitter, event, 0, 1, 0, 0); |
---|
752 | } |
---|
753 | |
---|
754 | /* |
---|
755 | * Expect a flow key node. |
---|
756 | */ |
---|
757 | |
---|
758 | static int |
---|
759 | yaml_emitter_emit_flow_mapping_key(yaml_emitter_t *emitter, |
---|
760 | yaml_event_t *event, int first) |
---|
761 | { |
---|
762 | if (first) |
---|
763 | { |
---|
764 | if (!yaml_emitter_write_indicator(emitter, "{", 1, 1, 0)) |
---|
765 | return 0; |
---|
766 | if (!yaml_emitter_increase_indent(emitter, 1, 0)) |
---|
767 | return 0; |
---|
768 | emitter->flow_level ++; |
---|
769 | } |
---|
770 | |
---|
771 | if (event->type == YAML_MAPPING_END_EVENT) |
---|
772 | { |
---|
773 | emitter->flow_level --; |
---|
774 | emitter->indent = POP(emitter, emitter->indents); |
---|
775 | if (emitter->canonical && !first) { |
---|
776 | if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) |
---|
777 | return 0; |
---|
778 | if (!yaml_emitter_write_indent(emitter)) |
---|
779 | return 0; |
---|
780 | } |
---|
781 | if (!yaml_emitter_write_indicator(emitter, "}", 0, 0, 0)) |
---|
782 | return 0; |
---|
783 | emitter->state = POP(emitter, emitter->states); |
---|
784 | |
---|
785 | return 1; |
---|
786 | } |
---|
787 | |
---|
788 | if (!first) { |
---|
789 | if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) |
---|
790 | return 0; |
---|
791 | } |
---|
792 | if (emitter->canonical || emitter->column > emitter->best_width) { |
---|
793 | if (!yaml_emitter_write_indent(emitter)) |
---|
794 | return 0; |
---|
795 | } |
---|
796 | |
---|
797 | if (!emitter->canonical && yaml_emitter_check_simple_key(emitter)) |
---|
798 | { |
---|
799 | if (!PUSH(emitter, emitter->states, |
---|
800 | YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE)) |
---|
801 | return 0; |
---|
802 | |
---|
803 | return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 1); |
---|
804 | } |
---|
805 | else |
---|
806 | { |
---|
807 | if (!yaml_emitter_write_indicator(emitter, "?", 1, 0, 0)) |
---|
808 | return 0; |
---|
809 | if (!PUSH(emitter, emitter->states, |
---|
810 | YAML_EMIT_FLOW_MAPPING_VALUE_STATE)) |
---|
811 | return 0; |
---|
812 | |
---|
813 | return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); |
---|
814 | } |
---|
815 | } |
---|
816 | |
---|
817 | /* |
---|
818 | * Expect a flow value node. |
---|
819 | */ |
---|
820 | |
---|
821 | static int |
---|
822 | yaml_emitter_emit_flow_mapping_value(yaml_emitter_t *emitter, |
---|
823 | yaml_event_t *event, int simple) |
---|
824 | { |
---|
825 | if (simple) { |
---|
826 | if (!yaml_emitter_write_indicator(emitter, ":", 0, 0, 0)) |
---|
827 | return 0; |
---|
828 | } |
---|
829 | else { |
---|
830 | if (emitter->canonical || emitter->column > emitter->best_width) { |
---|
831 | if (!yaml_emitter_write_indent(emitter)) |
---|
832 | return 0; |
---|
833 | } |
---|
834 | if (!yaml_emitter_write_indicator(emitter, ":", 1, 0, 0)) |
---|
835 | return 0; |
---|
836 | } |
---|
837 | if (!PUSH(emitter, emitter->states, YAML_EMIT_FLOW_MAPPING_KEY_STATE)) |
---|
838 | return 0; |
---|
839 | return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); |
---|
840 | } |
---|
841 | |
---|
842 | /* |
---|
843 | * Expect a block item node. |
---|
844 | */ |
---|
845 | |
---|
846 | static int |
---|
847 | yaml_emitter_emit_block_sequence_item(yaml_emitter_t *emitter, |
---|
848 | yaml_event_t *event, int first) |
---|
849 | { |
---|
850 | if (first) |
---|
851 | { |
---|
852 | if (!yaml_emitter_increase_indent(emitter, 0, |
---|
853 | (emitter->mapping_context && !emitter->indention))) |
---|
854 | return 0; |
---|
855 | } |
---|
856 | |
---|
857 | if (event->type == YAML_SEQUENCE_END_EVENT) |
---|
858 | { |
---|
859 | emitter->indent = POP(emitter, emitter->indents); |
---|
860 | emitter->state = POP(emitter, emitter->states); |
---|
861 | |
---|
862 | return 1; |
---|
863 | } |
---|
864 | |
---|
865 | if (!yaml_emitter_write_indent(emitter)) |
---|
866 | return 0; |
---|
867 | if (!yaml_emitter_write_indicator(emitter, "-", 1, 0, 1)) |
---|
868 | return 0; |
---|
869 | if (!PUSH(emitter, emitter->states, |
---|
870 | YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE)) |
---|
871 | return 0; |
---|
872 | |
---|
873 | return yaml_emitter_emit_node(emitter, event, 0, 1, 0, 0); |
---|
874 | } |
---|
875 | |
---|
876 | /* |
---|
877 | * Expect a block key node. |
---|
878 | */ |
---|
879 | |
---|
880 | static int |
---|
881 | yaml_emitter_emit_block_mapping_key(yaml_emitter_t *emitter, |
---|
882 | yaml_event_t *event, int first) |
---|
883 | { |
---|
884 | if (first) |
---|
885 | { |
---|
886 | if (!yaml_emitter_increase_indent(emitter, 0, 0)) |
---|
887 | return 0; |
---|
888 | } |
---|
889 | |
---|
890 | if (event->type == YAML_MAPPING_END_EVENT) |
---|
891 | { |
---|
892 | emitter->indent = POP(emitter, emitter->indents); |
---|
893 | emitter->state = POP(emitter, emitter->states); |
---|
894 | |
---|
895 | return 1; |
---|
896 | } |
---|
897 | |
---|
898 | if (!yaml_emitter_write_indent(emitter)) |
---|
899 | return 0; |
---|
900 | |
---|
901 | if (yaml_emitter_check_simple_key(emitter)) |
---|
902 | { |
---|
903 | if (!PUSH(emitter, emitter->states, |
---|
904 | YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE)) |
---|
905 | return 0; |
---|
906 | |
---|
907 | return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 1); |
---|
908 | } |
---|
909 | else |
---|
910 | { |
---|
911 | if (!yaml_emitter_write_indicator(emitter, "?", 1, 0, 1)) |
---|
912 | return 0; |
---|
913 | if (!PUSH(emitter, emitter->states, |
---|
914 | YAML_EMIT_BLOCK_MAPPING_VALUE_STATE)) |
---|
915 | return 0; |
---|
916 | |
---|
917 | return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); |
---|
918 | } |
---|
919 | } |
---|
920 | |
---|
921 | /* |
---|
922 | * Expect a block value node. |
---|
923 | */ |
---|
924 | |
---|
925 | static int |
---|
926 | yaml_emitter_emit_block_mapping_value(yaml_emitter_t *emitter, |
---|
927 | yaml_event_t *event, int simple) |
---|
928 | { |
---|
929 | if (simple) { |
---|
930 | if (!yaml_emitter_write_indicator(emitter, ":", 0, 0, 0)) |
---|
931 | return 0; |
---|
932 | } |
---|
933 | else { |
---|
934 | if (!yaml_emitter_write_indent(emitter)) |
---|
935 | return 0; |
---|
936 | if (!yaml_emitter_write_indicator(emitter, ":", 1, 0, 1)) |
---|
937 | return 0; |
---|
938 | } |
---|
939 | if (!PUSH(emitter, emitter->states, |
---|
940 | YAML_EMIT_BLOCK_MAPPING_KEY_STATE)) |
---|
941 | return 0; |
---|
942 | |
---|
943 | return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); |
---|
944 | } |
---|
945 | |
---|
946 | /* |
---|
947 | * Expect a node. |
---|
948 | */ |
---|
949 | |
---|
950 | static int |
---|
951 | yaml_emitter_emit_node(yaml_emitter_t *emitter, yaml_event_t *event, |
---|
952 | int root, int sequence, int mapping, int simple_key) |
---|
953 | { |
---|
954 | emitter->root_context = root; |
---|
955 | emitter->sequence_context = sequence; |
---|
956 | emitter->mapping_context = mapping; |
---|
957 | emitter->simple_key_context = simple_key; |
---|
958 | |
---|
959 | switch (event->type) |
---|
960 | { |
---|
961 | case YAML_ALIAS_EVENT: |
---|
962 | return yaml_emitter_emit_alias(emitter, event); |
---|
963 | |
---|
964 | case YAML_SCALAR_EVENT: |
---|
965 | return yaml_emitter_emit_scalar(emitter, event); |
---|
966 | |
---|
967 | case YAML_SEQUENCE_START_EVENT: |
---|
968 | return yaml_emitter_emit_sequence_start(emitter, event); |
---|
969 | |
---|
970 | case YAML_MAPPING_START_EVENT: |
---|
971 | return yaml_emitter_emit_mapping_start(emitter, event); |
---|
972 | |
---|
973 | default: |
---|
974 | return yaml_emitter_set_emitter_error(emitter, |
---|
975 | "expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS"); |
---|
976 | } |
---|
977 | |
---|
978 | return 0; |
---|
979 | } |
---|
980 | |
---|
981 | /* |
---|
982 | * Expect ALIAS. |
---|
983 | */ |
---|
984 | |
---|
985 | static int |
---|
986 | yaml_emitter_emit_alias(yaml_emitter_t *emitter, yaml_event_t *event) |
---|
987 | { |
---|
988 | if (!yaml_emitter_process_anchor(emitter)) |
---|
989 | return 0; |
---|
990 | emitter->state = POP(emitter, emitter->states); |
---|
991 | |
---|
992 | return 1; |
---|
993 | } |
---|
994 | |
---|
995 | /* |
---|
996 | * Expect SCALAR. |
---|
997 | */ |
---|
998 | |
---|
999 | static int |
---|
1000 | yaml_emitter_emit_scalar(yaml_emitter_t *emitter, yaml_event_t *event) |
---|
1001 | { |
---|
1002 | if (!yaml_emitter_select_scalar_style(emitter, event)) |
---|
1003 | return 0; |
---|
1004 | if (!yaml_emitter_process_anchor(emitter)) |
---|
1005 | return 0; |
---|
1006 | if (!yaml_emitter_process_tag(emitter)) |
---|
1007 | return 0; |
---|
1008 | if (!yaml_emitter_increase_indent(emitter, 1, 0)) |
---|
1009 | return 0; |
---|
1010 | if (!yaml_emitter_process_scalar(emitter)) |
---|
1011 | return 0; |
---|
1012 | emitter->indent = POP(emitter, emitter->indents); |
---|
1013 | emitter->state = POP(emitter, emitter->states); |
---|
1014 | |
---|
1015 | return 1; |
---|
1016 | } |
---|
1017 | |
---|
1018 | /* |
---|
1019 | * Expect SEQUENCE-START. |
---|
1020 | */ |
---|
1021 | |
---|
1022 | static int |
---|
1023 | yaml_emitter_emit_sequence_start(yaml_emitter_t *emitter, yaml_event_t *event) |
---|
1024 | { |
---|
1025 | if (!yaml_emitter_process_anchor(emitter)) |
---|
1026 | return 0; |
---|
1027 | if (!yaml_emitter_process_tag(emitter)) |
---|
1028 | return 0; |
---|
1029 | |
---|
1030 | if (emitter->flow_level || emitter->canonical |
---|
1031 | || event->data.sequence_start.style == YAML_FLOW_SEQUENCE_STYLE |
---|
1032 | || yaml_emitter_check_empty_sequence(emitter)) { |
---|
1033 | emitter->state = YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE; |
---|
1034 | } |
---|
1035 | else { |
---|
1036 | emitter->state = YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE; |
---|
1037 | } |
---|
1038 | |
---|
1039 | return 1; |
---|
1040 | } |
---|
1041 | |
---|
1042 | /* |
---|
1043 | * Expect MAPPING-START. |
---|
1044 | */ |
---|
1045 | |
---|
1046 | static int |
---|
1047 | yaml_emitter_emit_mapping_start(yaml_emitter_t *emitter, yaml_event_t *event) |
---|
1048 | { |
---|
1049 | if (!yaml_emitter_process_anchor(emitter)) |
---|
1050 | return 0; |
---|
1051 | if (!yaml_emitter_process_tag(emitter)) |
---|
1052 | return 0; |
---|
1053 | |
---|
1054 | if (emitter->flow_level || emitter->canonical |
---|
1055 | || event->data.mapping_start.style == YAML_FLOW_MAPPING_STYLE |
---|
1056 | || yaml_emitter_check_empty_mapping(emitter)) { |
---|
1057 | emitter->state = YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE; |
---|
1058 | } |
---|
1059 | else { |
---|
1060 | emitter->state = YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE; |
---|
1061 | } |
---|
1062 | |
---|
1063 | return 1; |
---|
1064 | } |
---|
1065 | |
---|
1066 | /* |
---|
1067 | * Check if the document content is an empty scalar. |
---|
1068 | */ |
---|
1069 | |
---|
1070 | static int |
---|
1071 | yaml_emitter_check_empty_document(yaml_emitter_t *emitter) |
---|
1072 | { |
---|
1073 | return 0; |
---|
1074 | } |
---|
1075 | |
---|
1076 | /* |
---|
1077 | * Check if the next events represent an empty sequence. |
---|
1078 | */ |
---|
1079 | |
---|
1080 | static int |
---|
1081 | yaml_emitter_check_empty_sequence(yaml_emitter_t *emitter) |
---|
1082 | { |
---|
1083 | if (emitter->events.tail - emitter->events.head < 2) |
---|
1084 | return 0; |
---|
1085 | |
---|
1086 | return (emitter->events.head[0].type == YAML_SEQUENCE_START_EVENT |
---|
1087 | && emitter->events.head[1].type == YAML_SEQUENCE_END_EVENT); |
---|
1088 | } |
---|
1089 | |
---|
1090 | /* |
---|
1091 | * Check if the next events represent an empty mapping. |
---|
1092 | */ |
---|
1093 | |
---|
1094 | static int |
---|
1095 | yaml_emitter_check_empty_mapping(yaml_emitter_t *emitter) |
---|
1096 | { |
---|
1097 | if (emitter->events.tail - emitter->events.head < 2) |
---|
1098 | return 0; |
---|
1099 | |
---|
1100 | return (emitter->events.head[0].type == YAML_MAPPING_START_EVENT |
---|
1101 | && emitter->events.head[1].type == YAML_MAPPING_END_EVENT); |
---|
1102 | } |
---|
1103 | |
---|
1104 | /* |
---|
1105 | * Check if the next node can be expressed as a simple key. |
---|
1106 | */ |
---|
1107 | |
---|
1108 | static int |
---|
1109 | yaml_emitter_check_simple_key(yaml_emitter_t *emitter) |
---|
1110 | { |
---|
1111 | yaml_event_t *event = emitter->events.head; |
---|
1112 | size_t length = 0; |
---|
1113 | |
---|
1114 | switch (event->type) |
---|
1115 | { |
---|
1116 | case YAML_ALIAS_EVENT: |
---|
1117 | length += emitter->anchor_data.anchor_length; |
---|
1118 | break; |
---|
1119 | |
---|
1120 | case YAML_SCALAR_EVENT: |
---|
1121 | if (emitter->scalar_data.multiline) |
---|
1122 | return 0; |
---|
1123 | length += emitter->anchor_data.anchor_length |
---|
1124 | + emitter->tag_data.handle_length |
---|
1125 | + emitter->tag_data.suffix_length |
---|
1126 | + emitter->scalar_data.length; |
---|
1127 | break; |
---|
1128 | |
---|
1129 | case YAML_SEQUENCE_START_EVENT: |
---|
1130 | if (!yaml_emitter_check_empty_sequence(emitter)) |
---|
1131 | return 0; |
---|
1132 | length += emitter->anchor_data.anchor_length |
---|
1133 | + emitter->tag_data.handle_length |
---|
1134 | + emitter->tag_data.suffix_length; |
---|
1135 | break; |
---|
1136 | |
---|
1137 | case YAML_MAPPING_START_EVENT: |
---|
1138 | if (!yaml_emitter_check_empty_sequence(emitter)) |
---|
1139 | return 0; |
---|
1140 | length += emitter->anchor_data.anchor_length |
---|
1141 | + emitter->tag_data.handle_length |
---|
1142 | + emitter->tag_data.suffix_length; |
---|
1143 | break; |
---|
1144 | |
---|
1145 | default: |
---|
1146 | return 0; |
---|
1147 | } |
---|
1148 | |
---|
1149 | if (length > 128) |
---|
1150 | return 0; |
---|
1151 | |
---|
1152 | return 1; |
---|
1153 | } |
---|
1154 | |
---|
1155 | /* |
---|
1156 | * Determine an acceptable scalar style. |
---|
1157 | */ |
---|
1158 | |
---|
1159 | static int |
---|
1160 | yaml_emitter_select_scalar_style(yaml_emitter_t *emitter, yaml_event_t *event) |
---|
1161 | { |
---|
1162 | yaml_scalar_style_t style = event->data.scalar.style; |
---|
1163 | int no_tag = (!emitter->tag_data.handle && !emitter->tag_data.suffix); |
---|
1164 | |
---|
1165 | if (no_tag && !event->data.scalar.plain_implicit |
---|
1166 | && !event->data.scalar.quoted_implicit) { |
---|
1167 | return yaml_emitter_set_emitter_error(emitter, |
---|
1168 | "neither tag nor implicit flags are specified"); |
---|
1169 | } |
---|
1170 | |
---|
1171 | if (style == YAML_ANY_SCALAR_STYLE) |
---|
1172 | style = YAML_PLAIN_SCALAR_STYLE; |
---|
1173 | |
---|
1174 | if (emitter->canonical) |
---|
1175 | style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; |
---|
1176 | |
---|
1177 | if (emitter->simple_key_context && emitter->scalar_data.multiline) |
---|
1178 | style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; |
---|
1179 | |
---|
1180 | if (style == YAML_PLAIN_SCALAR_STYLE) |
---|
1181 | { |
---|
1182 | if ((emitter->flow_level && !emitter->scalar_data.flow_plain_allowed) |
---|
1183 | || (!emitter->flow_level && !emitter->scalar_data.block_plain_allowed)) |
---|
1184 | style = YAML_SINGLE_QUOTED_SCALAR_STYLE; |
---|
1185 | if (!emitter->scalar_data.length |
---|
1186 | && (emitter->flow_level || emitter->simple_key_context)) |
---|
1187 | style = YAML_SINGLE_QUOTED_SCALAR_STYLE; |
---|
1188 | if (no_tag && !event->data.scalar.plain_implicit) |
---|
1189 | style = YAML_SINGLE_QUOTED_SCALAR_STYLE; |
---|
1190 | } |
---|
1191 | |
---|
1192 | if (style == YAML_SINGLE_QUOTED_SCALAR_STYLE) |
---|
1193 | { |
---|
1194 | if (!emitter->scalar_data.single_quoted_allowed) |
---|
1195 | style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; |
---|
1196 | } |
---|
1197 | |
---|
1198 | if (style == YAML_LITERAL_SCALAR_STYLE || style == YAML_FOLDED_SCALAR_STYLE) |
---|
1199 | { |
---|
1200 | if (!emitter->scalar_data.block_allowed |
---|
1201 | || emitter->flow_level || emitter->simple_key_context) |
---|
1202 | style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; |
---|
1203 | } |
---|
1204 | |
---|
1205 | if (no_tag && !event->data.scalar.quoted_implicit |
---|
1206 | && style != YAML_PLAIN_SCALAR_STYLE) |
---|
1207 | { |
---|
1208 | emitter->tag_data.handle = (yaml_char_t *)"!"; |
---|
1209 | emitter->tag_data.handle_length = 1; |
---|
1210 | } |
---|
1211 | |
---|
1212 | emitter->scalar_data.style = style; |
---|
1213 | |
---|
1214 | return 1; |
---|
1215 | } |
---|
1216 | |
---|
1217 | /* |
---|
1218 | * Write an achor. |
---|
1219 | */ |
---|
1220 | |
---|
1221 | static int |
---|
1222 | yaml_emitter_process_anchor(yaml_emitter_t *emitter) |
---|
1223 | { |
---|
1224 | if (!emitter->anchor_data.anchor) |
---|
1225 | return 1; |
---|
1226 | |
---|
1227 | if (!yaml_emitter_write_indicator(emitter, |
---|
1228 | (emitter->anchor_data.alias ? "*" : "&"), 1, 0, 0)) |
---|
1229 | return 0; |
---|
1230 | |
---|
1231 | return yaml_emitter_write_anchor(emitter, |
---|
1232 | emitter->anchor_data.anchor, emitter->anchor_data.anchor_length); |
---|
1233 | } |
---|
1234 | |
---|
1235 | /* |
---|
1236 | * Write a tag. |
---|
1237 | */ |
---|
1238 | |
---|
1239 | static int |
---|
1240 | yaml_emitter_process_tag(yaml_emitter_t *emitter) |
---|
1241 | { |
---|
1242 | if (!emitter->tag_data.handle && !emitter->tag_data.suffix) |
---|
1243 | return 1; |
---|
1244 | |
---|
1245 | if (emitter->tag_data.handle) |
---|
1246 | { |
---|
1247 | if (!yaml_emitter_write_tag_handle(emitter, emitter->tag_data.handle, |
---|
1248 | emitter->tag_data.handle_length)) |
---|
1249 | return 0; |
---|
1250 | if (emitter->tag_data.suffix) { |
---|
1251 | if (!yaml_emitter_write_tag_content(emitter, emitter->tag_data.suffix, |
---|
1252 | emitter->tag_data.suffix_length, 0)) |
---|
1253 | return 0; |
---|
1254 | } |
---|
1255 | } |
---|
1256 | else |
---|
1257 | { |
---|
1258 | if (!yaml_emitter_write_indicator(emitter, "!<", 1, 0, 0)) |
---|
1259 | return 0; |
---|
1260 | if (!yaml_emitter_write_tag_content(emitter, emitter->tag_data.suffix, |
---|
1261 | emitter->tag_data.suffix_length, 0)) |
---|
1262 | return 0; |
---|
1263 | if (!yaml_emitter_write_indicator(emitter, ">", 0, 0, 0)) |
---|
1264 | return 0; |
---|
1265 | } |
---|
1266 | |
---|
1267 | return 1; |
---|
1268 | } |
---|
1269 | |
---|
1270 | /* |
---|
1271 | * Write a scalar. |
---|
1272 | */ |
---|
1273 | |
---|
1274 | static int |
---|
1275 | yaml_emitter_process_scalar(yaml_emitter_t *emitter) |
---|
1276 | { |
---|
1277 | switch (emitter->scalar_data.style) |
---|
1278 | { |
---|
1279 | case YAML_PLAIN_SCALAR_STYLE: |
---|
1280 | return yaml_emitter_write_plain_scalar(emitter, |
---|
1281 | emitter->scalar_data.value, emitter->scalar_data.length, |
---|
1282 | !emitter->simple_key_context); |
---|
1283 | |
---|
1284 | case YAML_SINGLE_QUOTED_SCALAR_STYLE: |
---|
1285 | return yaml_emitter_write_single_quoted_scalar(emitter, |
---|
1286 | emitter->scalar_data.value, emitter->scalar_data.length, |
---|
1287 | !emitter->simple_key_context); |
---|
1288 | |
---|
1289 | case YAML_DOUBLE_QUOTED_SCALAR_STYLE: |
---|
1290 | return yaml_emitter_write_double_quoted_scalar(emitter, |
---|
1291 | emitter->scalar_data.value, emitter->scalar_data.length, |
---|
1292 | !emitter->simple_key_context); |
---|
1293 | |
---|
1294 | case YAML_LITERAL_SCALAR_STYLE: |
---|
1295 | return yaml_emitter_write_literal_scalar(emitter, |
---|
1296 | emitter->scalar_data.value, emitter->scalar_data.length); |
---|
1297 | |
---|
1298 | case YAML_FOLDED_SCALAR_STYLE: |
---|
1299 | return yaml_emitter_write_folded_scalar(emitter, |
---|
1300 | emitter->scalar_data.value, emitter->scalar_data.length); |
---|
1301 | |
---|
1302 | default: |
---|
1303 | assert(1); /* Impossible. */ |
---|
1304 | } |
---|
1305 | |
---|
1306 | return 0; |
---|
1307 | } |
---|
1308 | |
---|
1309 | /* |
---|
1310 | * Check if a %YAML directive is valid. |
---|
1311 | */ |
---|
1312 | |
---|
1313 | static int |
---|
1314 | yaml_emitter_analyze_version_directive(yaml_emitter_t *emitter, |
---|
1315 | yaml_version_directive_t version_directive) |
---|
1316 | { |
---|
1317 | if (version_directive.major != 1 || version_directive.minor != 1) { |
---|
1318 | return yaml_emitter_set_emitter_error(emitter, |
---|
1319 | "incompatible %YAML directive"); |
---|
1320 | } |
---|
1321 | |
---|
1322 | return 1; |
---|
1323 | } |
---|
1324 | |
---|
1325 | /* |
---|
1326 | * Check if a %TAG directive is valid. |
---|
1327 | */ |
---|
1328 | |
---|
1329 | static int |
---|
1330 | yaml_emitter_analyze_tag_directive(yaml_emitter_t *emitter, |
---|
1331 | yaml_tag_directive_t tag_directive) |
---|
1332 | { |
---|
1333 | yaml_string_t handle = STRING(tag_directive.handle, |
---|
1334 | strlen((char *)tag_directive.handle)); |
---|
1335 | yaml_string_t prefix = STRING(tag_directive.prefix, |
---|
1336 | strlen((char *)tag_directive.prefix)); |
---|
1337 | |
---|
1338 | if (handle.start == handle.end) { |
---|
1339 | return yaml_emitter_set_emitter_error(emitter, |
---|
1340 | "tag handle must not be empty"); |
---|
1341 | } |
---|
1342 | |
---|
1343 | if (handle.start[0] != '!') { |
---|
1344 | return yaml_emitter_set_emitter_error(emitter, |
---|
1345 | "tag handle must start with '!'"); |
---|
1346 | } |
---|
1347 | |
---|
1348 | if (handle.end[-1] != '!') { |
---|
1349 | return yaml_emitter_set_emitter_error(emitter, |
---|
1350 | "tag handle must end with '!'"); |
---|
1351 | } |
---|
1352 | |
---|
1353 | handle.pointer ++; |
---|
1354 | |
---|
1355 | while (handle.pointer < handle.end-1) { |
---|
1356 | if (!IS_ALPHA(handle)) { |
---|
1357 | return yaml_emitter_set_emitter_error(emitter, |
---|
1358 | "tag handle must contain alphanumerical characters only"); |
---|
1359 | } |
---|
1360 | MOVE(handle); |
---|
1361 | } |
---|
1362 | |
---|
1363 | if (prefix.start == prefix.end) { |
---|
1364 | return yaml_emitter_set_emitter_error(emitter, |
---|
1365 | "tag prefix must not be empty"); |
---|
1366 | } |
---|
1367 | |
---|
1368 | return 1; |
---|
1369 | } |
---|
1370 | |
---|
1371 | /* |
---|
1372 | * Check if an anchor is valid. |
---|
1373 | */ |
---|
1374 | |
---|
1375 | static int |
---|
1376 | yaml_emitter_analyze_anchor(yaml_emitter_t *emitter, |
---|
1377 | yaml_char_t *anchor, int alias) |
---|
1378 | { |
---|
1379 | yaml_string_t string = STRING(anchor, strlen((char *)anchor)); |
---|
1380 | |
---|
1381 | if (string.start == string.end) { |
---|
1382 | return yaml_emitter_set_emitter_error(emitter, alias ? |
---|
1383 | "alias value must not be empty" : |
---|
1384 | "anchor value must not be empty"); |
---|
1385 | } |
---|
1386 | |
---|
1387 | while (string.pointer != string.end) { |
---|
1388 | if (!IS_ALPHA(string)) { |
---|
1389 | return yaml_emitter_set_emitter_error(emitter, alias ? |
---|
1390 | "alias value must contain alphanumerical characters only" : |
---|
1391 | "anchor value must contain alphanumerical characters only"); |
---|
1392 | } |
---|
1393 | MOVE(string); |
---|
1394 | } |
---|
1395 | |
---|
1396 | emitter->anchor_data.anchor = string.start; |
---|
1397 | emitter->anchor_data.anchor_length = string.end - string.start; |
---|
1398 | emitter->anchor_data.alias = alias; |
---|
1399 | |
---|
1400 | return 1; |
---|
1401 | } |
---|
1402 | |
---|
1403 | /* |
---|
1404 | * Check if a tag is valid. |
---|
1405 | */ |
---|
1406 | |
---|
1407 | static int |
---|
1408 | yaml_emitter_analyze_tag(yaml_emitter_t *emitter, |
---|
1409 | yaml_char_t *tag) |
---|
1410 | { |
---|
1411 | yaml_string_t string = STRING(tag, strlen((char *)tag)); |
---|
1412 | yaml_tag_directive_t *tag_directive; |
---|
1413 | |
---|
1414 | if (string.start == string.end) { |
---|
1415 | return yaml_emitter_set_emitter_error(emitter, |
---|
1416 | "tag value must not be empty"); |
---|
1417 | } |
---|
1418 | |
---|
1419 | for (tag_directive = emitter->tag_directives.start; |
---|
1420 | tag_directive != emitter->tag_directives.top; tag_directive ++) { |
---|
1421 | size_t prefix_length = strlen((char *)tag_directive->prefix); |
---|
1422 | if (prefix_length < (size_t)(string.end - string.start) |
---|
1423 | && strncmp((char *)tag_directive->prefix, (char *)string.start, |
---|
1424 | prefix_length) == 0) |
---|
1425 | { |
---|
1426 | emitter->tag_data.handle = tag_directive->handle; |
---|
1427 | emitter->tag_data.handle_length = |
---|
1428 | strlen((char *)tag_directive->handle); |
---|
1429 | emitter->tag_data.suffix = string.start + prefix_length; |
---|
1430 | emitter->tag_data.suffix_length = |
---|
1431 | (string.end - string.start) - prefix_length; |
---|
1432 | return 1; |
---|
1433 | } |
---|
1434 | } |
---|
1435 | |
---|
1436 | emitter->tag_data.suffix = string.start; |
---|
1437 | emitter->tag_data.suffix_length = string.end - string.start; |
---|
1438 | |
---|
1439 | return 1; |
---|
1440 | } |
---|
1441 | |
---|
1442 | /* |
---|
1443 | * Check if a scalar is valid. |
---|
1444 | */ |
---|
1445 | |
---|
1446 | static int |
---|
1447 | yaml_emitter_analyze_scalar(yaml_emitter_t *emitter, |
---|
1448 | yaml_char_t *value, size_t length) |
---|
1449 | { |
---|
1450 | yaml_string_t string = STRING(value, length); |
---|
1451 | |
---|
1452 | int block_indicators = 0; |
---|
1453 | int flow_indicators = 0; |
---|
1454 | int line_breaks = 0; |
---|
1455 | int special_characters = 0; |
---|
1456 | |
---|
1457 | int inline_spaces = 0; |
---|
1458 | int inline_breaks = 0; |
---|
1459 | int leading_spaces = 0; |
---|
1460 | int leading_breaks = 0; |
---|
1461 | int trailing_spaces = 0; |
---|
1462 | int trailing_breaks = 0; |
---|
1463 | int inline_breaks_spaces = 0; |
---|
1464 | int mixed_breaks_spaces = 0; |
---|
1465 | |
---|
1466 | int preceeded_by_space = 0; |
---|
1467 | int followed_by_space = 0; |
---|
1468 | int spaces = 0; |
---|
1469 | int breaks = 0; |
---|
1470 | int mixed = 0; |
---|
1471 | int leading = 0; |
---|
1472 | |
---|
1473 | emitter->scalar_data.value = value; |
---|
1474 | emitter->scalar_data.length = length; |
---|
1475 | |
---|
1476 | if (string.start == string.end) |
---|
1477 | { |
---|
1478 | emitter->scalar_data.multiline = 0; |
---|
1479 | emitter->scalar_data.flow_plain_allowed = 0; |
---|
1480 | emitter->scalar_data.block_plain_allowed = 1; |
---|
1481 | emitter->scalar_data.single_quoted_allowed = 1; |
---|
1482 | emitter->scalar_data.block_allowed = 0; |
---|
1483 | |
---|
1484 | return 1; |
---|
1485 | } |
---|
1486 | |
---|
1487 | if ((CHECK_AT(string, '-', 0) |
---|
1488 | && CHECK_AT(string, '-', 1) |
---|
1489 | && CHECK_AT(string, '-', 2)) |
---|
1490 | || (CHECK_AT(string, '.', 0) |
---|
1491 | && CHECK_AT(string, '.', 1) |
---|
1492 | && CHECK_AT(string, '.', 2))) { |
---|
1493 | block_indicators = 1; |
---|
1494 | flow_indicators = 1; |
---|
1495 | } |
---|
1496 | |
---|
1497 | preceeded_by_space = 1; |
---|
1498 | followed_by_space = IS_BLANKZ_AT(string, WIDTH(string)); |
---|
1499 | |
---|
1500 | while (string.pointer != string.end) |
---|
1501 | { |
---|
1502 | if (string.start == string.pointer) |
---|
1503 | { |
---|
1504 | if (CHECK(string, '#') || CHECK(string, ',') |
---|
1505 | || CHECK(string, '[') || CHECK(string, ']') |
---|
1506 | || CHECK(string, '{') || CHECK(string, '}') |
---|
1507 | || CHECK(string, '&') || CHECK(string, '*') |
---|
1508 | || CHECK(string, '!') || CHECK(string, '|') |
---|
1509 | || CHECK(string, '>') || CHECK(string, '\'') |
---|
1510 | || CHECK(string, '"') || CHECK(string, '%') |
---|
1511 | || CHECK(string, '@') || CHECK(string, '`')) { |
---|
1512 | flow_indicators = 1; |
---|
1513 | block_indicators = 1; |
---|
1514 | } |
---|
1515 | |
---|
1516 | if (CHECK(string, '?') || CHECK(string, ':')) { |
---|
1517 | flow_indicators = 1; |
---|
1518 | if (followed_by_space) { |
---|
1519 | block_indicators = 1; |
---|
1520 | } |
---|
1521 | } |
---|
1522 | |
---|
1523 | if (CHECK(string, '-') && followed_by_space) { |
---|
1524 | flow_indicators = 1; |
---|
1525 | block_indicators = 1; |
---|
1526 | } |
---|
1527 | } |
---|
1528 | else |
---|
1529 | { |
---|
1530 | if (CHECK(string, ',') || CHECK(string, '?') |
---|
1531 | || CHECK(string, '[') || CHECK(string, ']') |
---|
1532 | || CHECK(string, '{') || CHECK(string, '}')) { |
---|
1533 | flow_indicators = 1; |
---|
1534 | } |
---|
1535 | |
---|
1536 | if (CHECK(string, ':')) { |
---|
1537 | flow_indicators = 1; |
---|
1538 | if (followed_by_space) { |
---|
1539 | block_indicators = 1; |
---|
1540 | } |
---|
1541 | } |
---|
1542 | |
---|
1543 | if (CHECK(string, '#') && preceeded_by_space) { |
---|
1544 | flow_indicators = 1; |
---|
1545 | block_indicators = 1; |
---|
1546 | } |
---|
1547 | } |
---|
1548 | |
---|
1549 | if (!IS_PRINTABLE(string) |
---|
1550 | || (!IS_ASCII(string) && !emitter->unicode)) { |
---|
1551 | special_characters = 1; |
---|
1552 | } |
---|
1553 | |
---|
1554 | if (IS_BREAK(string)) { |
---|
1555 | line_breaks = 1; |
---|
1556 | } |
---|
1557 | |
---|
1558 | if (IS_SPACE(string)) |
---|
1559 | { |
---|
1560 | spaces = 1; |
---|
1561 | if (string.start == string.pointer) { |
---|
1562 | leading = 1; |
---|
1563 | } |
---|
1564 | } |
---|
1565 | |
---|
1566 | else if (IS_BREAK(string)) |
---|
1567 | { |
---|
1568 | if (spaces) { |
---|
1569 | mixed = 1; |
---|
1570 | } |
---|
1571 | breaks = 1; |
---|
1572 | if (string.start == string.pointer) { |
---|
1573 | leading = 1; |
---|
1574 | } |
---|
1575 | } |
---|
1576 | |
---|
1577 | else if (spaces || breaks) |
---|
1578 | { |
---|
1579 | if (leading) { |
---|
1580 | if (spaces && breaks) { |
---|
1581 | mixed_breaks_spaces = 1; |
---|
1582 | } |
---|
1583 | else if (spaces) { |
---|
1584 | leading_spaces = 1; |
---|
1585 | } |
---|
1586 | else if (breaks) { |
---|
1587 | leading_breaks = 1; |
---|
1588 | } |
---|
1589 | } |
---|
1590 | else { |
---|
1591 | if (mixed) { |
---|
1592 | mixed_breaks_spaces = 1; |
---|
1593 | } |
---|
1594 | else if (spaces && breaks) { |
---|
1595 | inline_breaks_spaces = 1; |
---|
1596 | } |
---|
1597 | else if (spaces) { |
---|
1598 | inline_spaces = 1; |
---|
1599 | } |
---|
1600 | else if (breaks) { |
---|
1601 | inline_breaks = 1; |
---|
1602 | } |
---|
1603 | } |
---|
1604 | spaces = breaks = mixed = leading = 0; |
---|
1605 | } |
---|
1606 | |
---|
1607 | if ((spaces || breaks) && string.pointer == string.end-1) |
---|
1608 | { |
---|
1609 | if (spaces && breaks) { |
---|
1610 | mixed_breaks_spaces = 1; |
---|
1611 | } |
---|
1612 | else if (spaces) { |
---|
1613 | if (leading) { |
---|
1614 | leading_spaces = 1; |
---|
1615 | } |
---|
1616 | trailing_spaces = 1; |
---|
1617 | } |
---|
1618 | else if (breaks) { |
---|
1619 | if (leading) { |
---|
1620 | leading_breaks = 1; |
---|
1621 | } |
---|
1622 | trailing_breaks = 1; |
---|
1623 | } |
---|
1624 | } |
---|
1625 | |
---|
1626 | preceeded_by_space = IS_BLANKZ(string); |
---|
1627 | MOVE(string); |
---|
1628 | if (string.pointer != string.end) { |
---|
1629 | followed_by_space = IS_BLANKZ_AT(string, WIDTH(string)); |
---|
1630 | } |
---|
1631 | } |
---|
1632 | |
---|
1633 | emitter->scalar_data.multiline = line_breaks; |
---|
1634 | |
---|
1635 | emitter->scalar_data.flow_plain_allowed = 1; |
---|
1636 | emitter->scalar_data.block_plain_allowed = 1; |
---|
1637 | emitter->scalar_data.single_quoted_allowed = 1; |
---|
1638 | emitter->scalar_data.block_allowed = 1; |
---|
1639 | |
---|
1640 | if (leading_spaces || leading_breaks || trailing_spaces) { |
---|
1641 | emitter->scalar_data.flow_plain_allowed = 0; |
---|
1642 | emitter->scalar_data.block_plain_allowed = 0; |
---|
1643 | emitter->scalar_data.block_allowed = 0; |
---|
1644 | } |
---|
1645 | |
---|
1646 | if (trailing_breaks) { |
---|
1647 | emitter->scalar_data.flow_plain_allowed = 0; |
---|
1648 | emitter->scalar_data.block_plain_allowed = 0; |
---|
1649 | } |
---|
1650 | |
---|
1651 | if (inline_breaks_spaces) { |
---|
1652 | emitter->scalar_data.flow_plain_allowed = 0; |
---|
1653 | emitter->scalar_data.block_plain_allowed = 0; |
---|
1654 | emitter->scalar_data.single_quoted_allowed = 0; |
---|
1655 | } |
---|
1656 | |
---|
1657 | if (mixed_breaks_spaces || special_characters) { |
---|
1658 | emitter->scalar_data.flow_plain_allowed = 0; |
---|
1659 | emitter->scalar_data.block_plain_allowed = 0; |
---|
1660 | emitter->scalar_data.single_quoted_allowed = 0; |
---|
1661 | emitter->scalar_data.block_allowed = 0; |
---|
1662 | } |
---|
1663 | |
---|
1664 | if (line_breaks) { |
---|
1665 | emitter->scalar_data.flow_plain_allowed = 0; |
---|
1666 | emitter->scalar_data.block_plain_allowed = 0; |
---|
1667 | } |
---|
1668 | |
---|
1669 | if (flow_indicators) { |
---|
1670 | emitter->scalar_data.flow_plain_allowed = 0; |
---|
1671 | } |
---|
1672 | |
---|
1673 | if (block_indicators) { |
---|
1674 | emitter->scalar_data.block_plain_allowed = 0; |
---|
1675 | } |
---|
1676 | |
---|
1677 | return 1; |
---|
1678 | } |
---|
1679 | |
---|
1680 | /* |
---|
1681 | * Check if the event data is valid. |
---|
1682 | */ |
---|
1683 | |
---|
1684 | static int |
---|
1685 | yaml_emitter_analyze_event(yaml_emitter_t *emitter, |
---|
1686 | yaml_event_t *event) |
---|
1687 | { |
---|
1688 | emitter->anchor_data.anchor = NULL; |
---|
1689 | emitter->anchor_data.anchor_length = 0; |
---|
1690 | emitter->tag_data.handle = NULL; |
---|
1691 | emitter->tag_data.handle_length = 0; |
---|
1692 | emitter->tag_data.suffix = NULL; |
---|
1693 | emitter->tag_data.suffix_length = 0; |
---|
1694 | emitter->scalar_data.value = NULL; |
---|
1695 | emitter->scalar_data.length = 0; |
---|
1696 | |
---|
1697 | switch (event->type) |
---|
1698 | { |
---|
1699 | case YAML_ALIAS_EVENT: |
---|
1700 | if (!yaml_emitter_analyze_anchor(emitter, |
---|
1701 | event->data.alias.anchor, 1)) |
---|
1702 | return 0; |
---|
1703 | return 1; |
---|
1704 | |
---|
1705 | case YAML_SCALAR_EVENT: |
---|
1706 | if (event->data.scalar.anchor) { |
---|
1707 | if (!yaml_emitter_analyze_anchor(emitter, |
---|
1708 | event->data.scalar.anchor, 0)) |
---|
1709 | return 0; |
---|
1710 | } |
---|
1711 | if (event->data.scalar.tag && (emitter->canonical || |
---|
1712 | (!event->data.scalar.plain_implicit |
---|
1713 | && !event->data.scalar.quoted_implicit))) { |
---|
1714 | if (!yaml_emitter_analyze_tag(emitter, event->data.scalar.tag)) |
---|
1715 | return 0; |
---|
1716 | } |
---|
1717 | if (!yaml_emitter_analyze_scalar(emitter, |
---|
1718 | event->data.scalar.value, event->data.scalar.length)) |
---|
1719 | return 0; |
---|
1720 | return 1; |
---|
1721 | |
---|
1722 | case YAML_SEQUENCE_START_EVENT: |
---|
1723 | if (event->data.sequence_start.anchor) { |
---|
1724 | if (!yaml_emitter_analyze_anchor(emitter, |
---|
1725 | event->data.sequence_start.anchor, 0)) |
---|
1726 | return 0; |
---|
1727 | } |
---|
1728 | if (event->data.sequence_start.tag && (emitter->canonical || |
---|
1729 | !event->data.sequence_start.implicit)) { |
---|
1730 | if (!yaml_emitter_analyze_tag(emitter, |
---|
1731 | event->data.sequence_start.tag)) |
---|
1732 | return 0; |
---|
1733 | } |
---|
1734 | return 1; |
---|
1735 | |
---|
1736 | case YAML_MAPPING_START_EVENT: |
---|
1737 | if (event->data.mapping_start.anchor) { |
---|
1738 | if (!yaml_emitter_analyze_anchor(emitter, |
---|
1739 | event->data.mapping_start.anchor, 0)) |
---|
1740 | return 0; |
---|
1741 | } |
---|
1742 | if (event->data.mapping_start.tag && (emitter->canonical || |
---|
1743 | !event->data.mapping_start.implicit)) { |
---|
1744 | if (!yaml_emitter_analyze_tag(emitter, |
---|
1745 | event->data.mapping_start.tag)) |
---|
1746 | return 0; |
---|
1747 | } |
---|
1748 | return 1; |
---|
1749 | |
---|
1750 | default: |
---|
1751 | return 1; |
---|
1752 | } |
---|
1753 | } |
---|
1754 | |
---|
1755 | /* |
---|
1756 | * Write the BOM character. |
---|
1757 | */ |
---|
1758 | |
---|
1759 | static int |
---|
1760 | yaml_emitter_write_bom(yaml_emitter_t *emitter) |
---|
1761 | { |
---|
1762 | if (!FLUSH(emitter)) return 0; |
---|
1763 | |
---|
1764 | *(emitter->buffer.pointer++) = (yaml_char_t) '\xEF'; |
---|
1765 | *(emitter->buffer.pointer++) = (yaml_char_t) '\xBB'; |
---|
1766 | *(emitter->buffer.pointer++) = (yaml_char_t) '\xBF'; |
---|
1767 | |
---|
1768 | return 1; |
---|
1769 | } |
---|
1770 | |
---|
1771 | static int |
---|
1772 | yaml_emitter_write_indent(yaml_emitter_t *emitter) |
---|
1773 | { |
---|
1774 | int indent = (emitter->indent >= 0) ? emitter->indent : 0; |
---|
1775 | |
---|
1776 | if (!emitter->indention || emitter->column > indent |
---|
1777 | || (emitter->column == indent && !emitter->whitespace)) { |
---|
1778 | if (!PUT_BREAK(emitter)) return 0; |
---|
1779 | } |
---|
1780 | |
---|
1781 | while (emitter->column < indent) { |
---|
1782 | if (!PUT(emitter, ' ')) return 0; |
---|
1783 | } |
---|
1784 | |
---|
1785 | emitter->whitespace = 1; |
---|
1786 | emitter->indention = 1; |
---|
1787 | |
---|
1788 | return 1; |
---|
1789 | } |
---|
1790 | |
---|
1791 | static int |
---|
1792 | yaml_emitter_write_indicator(yaml_emitter_t *emitter, |
---|
1793 | char *indicator, int need_whitespace, |
---|
1794 | int is_whitespace, int is_indention) |
---|
1795 | { |
---|
1796 | yaml_string_t string = STRING((yaml_char_t *)indicator, strlen(indicator)); |
---|
1797 | |
---|
1798 | if (need_whitespace && !emitter->whitespace) { |
---|
1799 | if (!PUT(emitter, ' ')) return 0; |
---|
1800 | } |
---|
1801 | |
---|
1802 | while (string.pointer != string.end) { |
---|
1803 | if (!WRITE(emitter, string)) return 0; |
---|
1804 | } |
---|
1805 | |
---|
1806 | emitter->whitespace = is_whitespace; |
---|
1807 | emitter->indention = (emitter->indention && is_indention); |
---|
1808 | |
---|
1809 | return 1; |
---|
1810 | } |
---|
1811 | |
---|
1812 | static int |
---|
1813 | yaml_emitter_write_anchor(yaml_emitter_t *emitter, |
---|
1814 | yaml_char_t *value, size_t length) |
---|
1815 | { |
---|
1816 | yaml_string_t string = STRING(value, length); |
---|
1817 | |
---|
1818 | while (string.pointer != string.end) { |
---|
1819 | if (!WRITE(emitter, string)) return 0; |
---|
1820 | } |
---|
1821 | |
---|
1822 | emitter->whitespace = 0; |
---|
1823 | emitter->indention = 0; |
---|
1824 | |
---|
1825 | return 1; |
---|
1826 | } |
---|
1827 | |
---|
1828 | static int |
---|
1829 | yaml_emitter_write_tag_handle(yaml_emitter_t *emitter, |
---|
1830 | yaml_char_t *value, size_t length) |
---|
1831 | { |
---|
1832 | yaml_string_t string = STRING(value, length); |
---|
1833 | |
---|
1834 | if (!emitter->whitespace) { |
---|
1835 | if (!PUT(emitter, ' ')) return 0; |
---|
1836 | } |
---|
1837 | |
---|
1838 | while (string.pointer != string.end) { |
---|
1839 | if (!WRITE(emitter, string)) return 0; |
---|
1840 | } |
---|
1841 | |
---|
1842 | emitter->whitespace = 0; |
---|
1843 | emitter->indention = 0; |
---|
1844 | |
---|
1845 | return 1; |
---|
1846 | } |
---|
1847 | |
---|
1848 | static int |
---|
1849 | yaml_emitter_write_tag_content(yaml_emitter_t *emitter, |
---|
1850 | yaml_char_t *value, size_t length, |
---|
1851 | int need_whitespace) |
---|
1852 | { |
---|
1853 | yaml_string_t string = STRING(value, length); |
---|
1854 | |
---|
1855 | if (need_whitespace && !emitter->whitespace) { |
---|
1856 | if (!PUT(emitter, ' ')) return 0; |
---|
1857 | } |
---|
1858 | |
---|
1859 | while (string.pointer != string.end) { |
---|
1860 | if (IS_ALPHA(string) |
---|
1861 | || CHECK(string, ';') || CHECK(string, '/') |
---|
1862 | || CHECK(string, '?') || CHECK(string, ':') |
---|
1863 | || CHECK(string, '@') || CHECK(string, '&') |
---|
1864 | || CHECK(string, '=') || CHECK(string, '+') |
---|
1865 | || CHECK(string, '$') || CHECK(string, ',') |
---|
1866 | || CHECK(string, '_') || CHECK(string, '.') |
---|
1867 | || CHECK(string, '~') || CHECK(string, '*') |
---|
1868 | || CHECK(string, '\'') || CHECK(string, '(') |
---|
1869 | || CHECK(string, ')') || CHECK(string, '[') |
---|
1870 | || CHECK(string, ']')) { |
---|
1871 | if (!WRITE(emitter, string)) return 0; |
---|
1872 | } |
---|
1873 | else { |
---|
1874 | int width = WIDTH(string); |
---|
1875 | unsigned int value; |
---|
1876 | while (width --) { |
---|
1877 | value = *(string.pointer++); |
---|
1878 | if (!PUT(emitter, '%')) return 0; |
---|
1879 | if (!PUT(emitter, (value >> 4) |
---|
1880 | + ((value >> 4) < 10 ? '0' : 'A' - 10))) |
---|
1881 | return 0; |
---|
1882 | if (!PUT(emitter, (value & 0x0F) |
---|
1883 | + ((value & 0x0F) < 10 ? '0' : 'A' - 10))) |
---|
1884 | return 0; |
---|
1885 | } |
---|
1886 | } |
---|
1887 | } |
---|
1888 | |
---|
1889 | emitter->whitespace = 0; |
---|
1890 | emitter->indention = 0; |
---|
1891 | |
---|
1892 | return 1; |
---|
1893 | } |
---|
1894 | |
---|
1895 | static int |
---|
1896 | yaml_emitter_write_plain_scalar(yaml_emitter_t *emitter, |
---|
1897 | yaml_char_t *value, size_t length, int allow_breaks) |
---|
1898 | { |
---|
1899 | yaml_string_t string = STRING(value, length); |
---|
1900 | int spaces = 0; |
---|
1901 | int breaks = 0; |
---|
1902 | |
---|
1903 | if (!emitter->whitespace) { |
---|
1904 | if (!PUT(emitter, ' ')) return 0; |
---|
1905 | } |
---|
1906 | |
---|
1907 | while (string.pointer != string.end) |
---|
1908 | { |
---|
1909 | if (IS_SPACE(string)) |
---|
1910 | { |
---|
1911 | if (allow_breaks && !spaces |
---|
1912 | && emitter->column > emitter->best_width |
---|
1913 | && !IS_SPACE_AT(string, 1)) { |
---|
1914 | if (!yaml_emitter_write_indent(emitter)) return 0; |
---|
1915 | MOVE(string); |
---|
1916 | } |
---|
1917 | else { |
---|
1918 | if (!WRITE(emitter, string)) return 0; |
---|
1919 | } |
---|
1920 | spaces = 1; |
---|
1921 | } |
---|
1922 | else if (IS_BREAK(string)) |
---|
1923 | { |
---|
1924 | if (!breaks && CHECK(string, '\n')) { |
---|
1925 | if (!PUT_BREAK(emitter)) return 0; |
---|
1926 | } |
---|
1927 | if (!WRITE_BREAK(emitter, string)) return 0; |
---|
1928 | emitter->indention = 1; |
---|
1929 | breaks = 1; |
---|
1930 | } |
---|
1931 | else |
---|
1932 | { |
---|
1933 | if (breaks) { |
---|
1934 | if (!yaml_emitter_write_indent(emitter)) return 0; |
---|
1935 | } |
---|
1936 | if (!WRITE(emitter, string)) return 0; |
---|
1937 | emitter->indention = 0; |
---|
1938 | spaces = 0; |
---|
1939 | breaks = 0; |
---|
1940 | } |
---|
1941 | } |
---|
1942 | |
---|
1943 | emitter->whitespace = 0; |
---|
1944 | emitter->indention = 0; |
---|
1945 | |
---|
1946 | return 1; |
---|
1947 | } |
---|
1948 | |
---|
1949 | static int |
---|
1950 | yaml_emitter_write_single_quoted_scalar(yaml_emitter_t *emitter, |
---|
1951 | yaml_char_t *value, size_t length, int allow_breaks) |
---|
1952 | { |
---|
1953 | yaml_string_t string = STRING(value, length); |
---|
1954 | int spaces = 0; |
---|
1955 | int breaks = 0; |
---|
1956 | |
---|
1957 | if (!yaml_emitter_write_indicator(emitter, "'", 1, 0, 0)) |
---|
1958 | return 0; |
---|
1959 | |
---|
1960 | while (string.pointer != string.end) |
---|
1961 | { |
---|
1962 | if (IS_SPACE(string)) |
---|
1963 | { |
---|
1964 | if (allow_breaks && !spaces |
---|
1965 | && emitter->column > emitter->best_width |
---|
1966 | && string.pointer != string.start |
---|
1967 | && string.pointer != string.end - 1 |
---|
1968 | && !IS_SPACE_AT(string, 1)) { |
---|
1969 | if (!yaml_emitter_write_indent(emitter)) return 0; |
---|
1970 | MOVE(string); |
---|
1971 | } |
---|
1972 | else { |
---|
1973 | if (!WRITE(emitter, string)) return 0; |
---|
1974 | } |
---|
1975 | spaces = 1; |
---|
1976 | } |
---|
1977 | else if (IS_BREAK(string)) |
---|
1978 | { |
---|
1979 | if (!breaks && CHECK(string, '\n')) { |
---|
1980 | if (!PUT_BREAK(emitter)) return 0; |
---|
1981 | } |
---|
1982 | if (!WRITE_BREAK(emitter, string)) return 0; |
---|
1983 | emitter->indention = 1; |
---|
1984 | breaks = 1; |
---|
1985 | } |
---|
1986 | else |
---|
1987 | { |
---|
1988 | if (breaks) { |
---|
1989 | if (!yaml_emitter_write_indent(emitter)) return 0; |
---|
1990 | } |
---|
1991 | if (CHECK(string, '\'')) { |
---|
1992 | if (!PUT(emitter, '\'')) return 0; |
---|
1993 | } |
---|
1994 | if (!WRITE(emitter, string)) return 0; |
---|
1995 | emitter->indention = 0; |
---|
1996 | spaces = 0; |
---|
1997 | breaks = 0; |
---|
1998 | } |
---|
1999 | } |
---|
2000 | |
---|
2001 | if (!yaml_emitter_write_indicator(emitter, "'", 0, 0, 0)) |
---|
2002 | return 0; |
---|
2003 | |
---|
2004 | emitter->whitespace = 0; |
---|
2005 | emitter->indention = 0; |
---|
2006 | |
---|
2007 | return 1; |
---|
2008 | } |
---|
2009 | |
---|
2010 | static int |
---|
2011 | yaml_emitter_write_double_quoted_scalar(yaml_emitter_t *emitter, |
---|
2012 | yaml_char_t *value, size_t length, int allow_breaks) |
---|
2013 | { |
---|
2014 | yaml_string_t string = STRING(value, length); |
---|
2015 | int spaces = 0; |
---|
2016 | |
---|
2017 | if (!yaml_emitter_write_indicator(emitter, "\"", 1, 0, 0)) |
---|
2018 | return 0; |
---|
2019 | |
---|
2020 | while (string.pointer != string.end) |
---|
2021 | { |
---|
2022 | if (!IS_PRINTABLE(string) || (!emitter->unicode && !IS_ASCII(string)) |
---|
2023 | || IS_BOM(string) || IS_BREAK(string) |
---|
2024 | || CHECK(string, '"') || CHECK(string, '\\')) |
---|
2025 | { |
---|
2026 | unsigned char octet; |
---|
2027 | unsigned int width; |
---|
2028 | unsigned int value; |
---|
2029 | int k; |
---|
2030 | |
---|
2031 | octet = string.pointer[0]; |
---|
2032 | width = (octet & 0x80) == 0x00 ? 1 : |
---|
2033 | (octet & 0xE0) == 0xC0 ? 2 : |
---|
2034 | (octet & 0xF0) == 0xE0 ? 3 : |
---|
2035 | (octet & 0xF8) == 0xF0 ? 4 : 0; |
---|
2036 | value = (octet & 0x80) == 0x00 ? octet & 0x7F : |
---|
2037 | (octet & 0xE0) == 0xC0 ? octet & 0x1F : |
---|
2038 | (octet & 0xF0) == 0xE0 ? octet & 0x0F : |
---|
2039 | (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0; |
---|
2040 | for (k = 1; k < (int)width; k ++) { |
---|
2041 | octet = string.pointer[k]; |
---|
2042 | value = (value << 6) + (octet & 0x3F); |
---|
2043 | } |
---|
2044 | string.pointer += width; |
---|
2045 | |
---|
2046 | if (!PUT(emitter, '\\')) return 0; |
---|
2047 | |
---|
2048 | switch (value) |
---|
2049 | { |
---|
2050 | case 0x00: |
---|
2051 | if (!PUT(emitter, '0')) return 0; |
---|
2052 | break; |
---|
2053 | |
---|
2054 | case 0x07: |
---|
2055 | if (!PUT(emitter, 'a')) return 0; |
---|
2056 | break; |
---|
2057 | |
---|
2058 | case 0x08: |
---|
2059 | if (!PUT(emitter, 'b')) return 0; |
---|
2060 | break; |
---|
2061 | |
---|
2062 | case 0x09: |
---|
2063 | if (!PUT(emitter, 't')) return 0; |
---|
2064 | break; |
---|
2065 | |
---|
2066 | case 0x0A: |
---|
2067 | if (!PUT(emitter, 'n')) return 0; |
---|
2068 | break; |
---|
2069 | |
---|
2070 | case 0x0B: |
---|
2071 | if (!PUT(emitter, 'v')) return 0; |
---|
2072 | break; |
---|
2073 | |
---|
2074 | case 0x0C: |
---|
2075 | if (!PUT(emitter, 'f')) return 0; |
---|
2076 | break; |
---|
2077 | |
---|
2078 | case 0x0D: |
---|
2079 | if (!PUT(emitter, 'r')) return 0; |
---|
2080 | break; |
---|
2081 | |
---|
2082 | case 0x1B: |
---|
2083 | if (!PUT(emitter, 'e')) return 0; |
---|
2084 | break; |
---|
2085 | |
---|
2086 | case 0x22: |
---|
2087 | if (!PUT(emitter, '\"')) return 0; |
---|
2088 | break; |
---|
2089 | |
---|
2090 | case 0x5C: |
---|
2091 | if (!PUT(emitter, '\\')) return 0; |
---|
2092 | break; |
---|
2093 | |
---|
2094 | case 0x85: |
---|
2095 | if (!PUT(emitter, 'N')) return 0; |
---|
2096 | break; |
---|
2097 | |
---|
2098 | case 0xA0: |
---|
2099 | if (!PUT(emitter, '_')) return 0; |
---|
2100 | break; |
---|
2101 | |
---|
2102 | case 0x2028: |
---|
2103 | if (!PUT(emitter, 'L')) return 0; |
---|
2104 | break; |
---|
2105 | |
---|
2106 | case 0x2029: |
---|
2107 | if (!PUT(emitter, 'P')) return 0; |
---|
2108 | break; |
---|
2109 | |
---|
2110 | default: |
---|
2111 | if (value <= 0xFF) { |
---|
2112 | if (!PUT(emitter, 'x')) return 0; |
---|
2113 | width = 2; |
---|
2114 | } |
---|
2115 | else if (value <= 0xFFFF) { |
---|
2116 | if (!PUT(emitter, 'u')) return 0; |
---|
2117 | width = 4; |
---|
2118 | } |
---|
2119 | else { |
---|
2120 | if (!PUT(emitter, 'U')) return 0; |
---|
2121 | width = 8; |
---|
2122 | } |
---|
2123 | for (k = (width-1)*4; k >= 0; k -= 4) { |
---|
2124 | int digit = (value >> k) & 0x0F; |
---|
2125 | if (!PUT(emitter, digit + (digit < 10 ? '0' : 'A'-10))) |
---|
2126 | return 0; |
---|
2127 | } |
---|
2128 | } |
---|
2129 | spaces = 0; |
---|
2130 | } |
---|
2131 | else if (IS_SPACE(string)) |
---|
2132 | { |
---|
2133 | if (allow_breaks && !spaces |
---|
2134 | && emitter->column > emitter->best_width |
---|
2135 | && string.pointer != string.start |
---|
2136 | && string.pointer != string.end - 1) { |
---|
2137 | if (!yaml_emitter_write_indent(emitter)) return 0; |
---|
2138 | if (IS_SPACE_AT(string, 1)) { |
---|
2139 | if (!PUT(emitter, '\\')) return 0; |
---|
2140 | } |
---|
2141 | MOVE(string); |
---|
2142 | } |
---|
2143 | else { |
---|
2144 | if (!WRITE(emitter, string)) return 0; |
---|
2145 | } |
---|
2146 | spaces = 1; |
---|
2147 | } |
---|
2148 | else |
---|
2149 | { |
---|
2150 | if (!WRITE(emitter, string)) return 0; |
---|
2151 | spaces = 0; |
---|
2152 | } |
---|
2153 | } |
---|
2154 | |
---|
2155 | if (!yaml_emitter_write_indicator(emitter, "\"", 0, 0, 0)) |
---|
2156 | return 0; |
---|
2157 | |
---|
2158 | emitter->whitespace = 0; |
---|
2159 | emitter->indention = 0; |
---|
2160 | |
---|
2161 | return 1; |
---|
2162 | } |
---|
2163 | |
---|
2164 | static int |
---|
2165 | yaml_emitter_determine_chomping(yaml_emitter_t *emitter, |
---|
2166 | yaml_string_t string) |
---|
2167 | { |
---|
2168 | string.pointer = string.end; |
---|
2169 | if (string.start == string.pointer) |
---|
2170 | return -1; |
---|
2171 | do { |
---|
2172 | string.pointer --; |
---|
2173 | } while ((*string.pointer & 0xC0) == 0x80); |
---|
2174 | if (!IS_BREAK(string)) |
---|
2175 | return -1; |
---|
2176 | if (string.start == string.pointer) |
---|
2177 | return 0; |
---|
2178 | do { |
---|
2179 | string.pointer --; |
---|
2180 | } while ((*string.pointer & 0xC0) == 0x80); |
---|
2181 | if (!IS_BREAK(string)) |
---|
2182 | return 0; |
---|
2183 | return +1; |
---|
2184 | |
---|
2185 | } |
---|
2186 | |
---|
2187 | static int |
---|
2188 | yaml_emitter_write_literal_scalar(yaml_emitter_t *emitter, |
---|
2189 | yaml_char_t *value, size_t length) |
---|
2190 | { |
---|
2191 | yaml_string_t string = STRING(value, length); |
---|
2192 | int chomp = yaml_emitter_determine_chomping(emitter, string); |
---|
2193 | int breaks = 0; |
---|
2194 | |
---|
2195 | if (!yaml_emitter_write_indicator(emitter, |
---|
2196 | chomp == -1 ? "|-" : chomp == +1 ? "|+" : "|", 1, 0, 0)) |
---|
2197 | return 0; |
---|
2198 | if (!yaml_emitter_write_indent(emitter)) |
---|
2199 | return 0; |
---|
2200 | |
---|
2201 | while (string.pointer != string.end) |
---|
2202 | { |
---|
2203 | if (IS_BREAK(string)) |
---|
2204 | { |
---|
2205 | if (!WRITE_BREAK(emitter, string)) return 0; |
---|
2206 | emitter->indention = 1; |
---|
2207 | breaks = 1; |
---|
2208 | } |
---|
2209 | else |
---|
2210 | { |
---|
2211 | if (breaks) { |
---|
2212 | if (!yaml_emitter_write_indent(emitter)) return 0; |
---|
2213 | } |
---|
2214 | if (!WRITE(emitter, string)) return 0; |
---|
2215 | emitter->indention = 0; |
---|
2216 | breaks = 0; |
---|
2217 | } |
---|
2218 | } |
---|
2219 | |
---|
2220 | return 1; |
---|
2221 | } |
---|
2222 | |
---|
2223 | static int |
---|
2224 | yaml_emitter_write_folded_scalar(yaml_emitter_t *emitter, |
---|
2225 | yaml_char_t *value, size_t length) |
---|
2226 | { |
---|
2227 | yaml_string_t string = STRING(value, length); |
---|
2228 | int chomp = yaml_emitter_determine_chomping(emitter, string); |
---|
2229 | int breaks = 1; |
---|
2230 | int leading_spaces = 0; |
---|
2231 | |
---|
2232 | if (!yaml_emitter_write_indicator(emitter, |
---|
2233 | chomp == -1 ? ">-" : chomp == +1 ? ">+" : ">", 1, 0, 0)) |
---|
2234 | return 0; |
---|
2235 | if (!yaml_emitter_write_indent(emitter)) |
---|
2236 | return 0; |
---|
2237 | |
---|
2238 | while (string.pointer != string.end) |
---|
2239 | { |
---|
2240 | if (IS_BREAK(string)) |
---|
2241 | { |
---|
2242 | if (!breaks && !leading_spaces && CHECK(string, '\n')) { |
---|
2243 | int k = 0; |
---|
2244 | while (IS_BREAK_AT(string, k)) { |
---|
2245 | k += WIDTH_AT(string, k); |
---|
2246 | } |
---|
2247 | if (!IS_BLANK_AT(string, k)) { |
---|
2248 | if (!PUT_BREAK(emitter)) return 0; |
---|
2249 | } |
---|
2250 | } |
---|
2251 | if (!WRITE_BREAK(emitter, string)) return 0; |
---|
2252 | emitter->indention = 1; |
---|
2253 | breaks = 1; |
---|
2254 | } |
---|
2255 | else |
---|
2256 | { |
---|
2257 | if (breaks) { |
---|
2258 | if (!yaml_emitter_write_indent(emitter)) return 0; |
---|
2259 | leading_spaces = IS_BLANK(string); |
---|
2260 | } |
---|
2261 | if (!breaks && IS_SPACE(string) && !IS_SPACE_AT(string, 1) |
---|
2262 | && emitter->column > emitter->best_width) { |
---|
2263 | if (!yaml_emitter_write_indent(emitter)) return 0; |
---|
2264 | MOVE(string); |
---|
2265 | } |
---|
2266 | else { |
---|
2267 | if (!WRITE(emitter, string)) return 0; |
---|
2268 | } |
---|
2269 | emitter->indention = 0; |
---|
2270 | breaks = 0; |
---|
2271 | } |
---|
2272 | } |
---|
2273 | |
---|
2274 | return 1; |
---|
2275 | } |
---|
2276 | |
---|