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-rw-r--r--contrib/libyaml/tests/example-deconstructor-alt.c800
1 files changed, 800 insertions, 0 deletions
diff --git a/contrib/libyaml/tests/example-deconstructor-alt.c b/contrib/libyaml/tests/example-deconstructor-alt.c
new file mode 100644
index 000000000000..7da194a659d0
--- /dev/null
+++ b/contrib/libyaml/tests/example-deconstructor-alt.c
@@ -0,0 +1,800 @@
+
+#include <yaml.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+
+int
+main(int argc, char *argv[])
+{
+ int help = 0;
+ int canonical = 0;
+ int unicode = 0;
+ int k;
+ int done = 0;
+
+ yaml_parser_t parser;
+ yaml_emitter_t emitter;
+ yaml_event_t input_event;
+ yaml_document_t output_document;
+
+ int root;
+
+ /* Clear the objects. */
+
+ memset(&parser, 0, sizeof(parser));
+ memset(&emitter, 0, sizeof(emitter));
+ memset(&input_event, 0, sizeof(input_event));
+ memset(&output_document, 0, sizeof(output_document));
+
+ /* Analyze command line options. */
+
+ for (k = 1; k < argc; k ++)
+ {
+ if (strcmp(argv[k], "-h") == 0
+ || strcmp(argv[k], "--help") == 0) {
+ help = 1;
+ }
+
+ else if (strcmp(argv[k], "-c") == 0
+ || strcmp(argv[k], "--canonical") == 0) {
+ canonical = 1;
+ }
+
+ else if (strcmp(argv[k], "-u") == 0
+ || strcmp(argv[k], "--unicode") == 0) {
+ unicode = 1;
+ }
+
+ else {
+ fprintf(stderr, "Unrecognized option: %s\n"
+ "Try `%s --help` for more information.\n",
+ argv[k], argv[0]);
+ return 1;
+ }
+ }
+
+ /* Display the help string. */
+
+ if (help)
+ {
+ printf("%s <input\n"
+ "or\n%s -h | --help\nDeconstruct a YAML stream\n\nOptions:\n"
+ "-h, --help\t\tdisplay this help and exit\n"
+ "-c, --canonical\t\toutput in the canonical YAML format\n"
+ "-u, --unicode\t\toutput unescaped non-ASCII characters\n",
+ argv[0], argv[0]);
+ return 0;
+ }
+
+ /* Initialize the parser and emitter objects. */
+
+ if (!yaml_parser_initialize(&parser)) {
+ fprintf(stderr, "Could not initialize the parser object\n");
+ return 1;
+ }
+
+ if (!yaml_emitter_initialize(&emitter)) {
+ yaml_parser_delete(&parser);
+ fprintf(stderr, "Could not inialize the emitter object\n");
+ return 1;
+ }
+
+ /* Set the parser parameters. */
+
+ yaml_parser_set_input_file(&parser, stdin);
+
+ /* Set the emitter parameters. */
+
+ yaml_emitter_set_output_file(&emitter, stdout);
+
+ yaml_emitter_set_canonical(&emitter, canonical);
+ yaml_emitter_set_unicode(&emitter, unicode);
+
+ /* Create and emit the STREAM-START event. */
+
+ if (!yaml_emitter_open(&emitter))
+ goto emitter_error;
+
+ /* Create a output_document object. */
+
+ if (!yaml_document_initialize(&output_document, NULL, NULL, NULL, 0, 0))
+ goto document_error;
+
+ /* Create the root sequence. */
+
+ root = yaml_document_add_sequence(&output_document, NULL,
+ YAML_BLOCK_SEQUENCE_STYLE);
+ if (!root) goto document_error;
+
+ /* Loop through the input events. */
+
+ while (!done)
+ {
+ int properties, key, value, map, seq;
+
+ /* Get the next event. */
+
+ if (!yaml_parser_parse(&parser, &input_event))
+ goto parser_error;
+
+ /* Check if this is the stream end. */
+
+ if (input_event.type == YAML_STREAM_END_EVENT) {
+ done = 1;
+ }
+
+ /* Create a mapping node and attach it to the root sequence. */
+
+ properties = yaml_document_add_mapping(&output_document, NULL,
+ YAML_BLOCK_MAPPING_STYLE);
+ if (!properties) goto document_error;
+ if (!yaml_document_append_sequence_item(&output_document,
+ root, properties)) goto document_error;
+
+ /* Analyze the event. */
+
+ switch (input_event.type)
+ {
+ case YAML_STREAM_START_EVENT:
+
+ /* Add 'type': 'STREAM-START'. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "type", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ "STREAM-START", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ /* Add 'encoding': <encoding>. */
+
+ if (input_event.data.stream_start.encoding)
+ {
+ yaml_encoding_t encoding
+ = input_event.data.stream_start.encoding;
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "encoding", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ (encoding == YAML_UTF8_ENCODING ? "utf-8" :
+ encoding == YAML_UTF16LE_ENCODING ? "utf-16-le" :
+ encoding == YAML_UTF16BE_ENCODING ? "utf-16-be" :
+ "unknown"), -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+ }
+
+ break;
+
+ case YAML_STREAM_END_EVENT:
+
+ /* Add 'type': 'STREAM-END'. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "type", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ "STREAM-END", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ break;
+
+ case YAML_DOCUMENT_START_EVENT:
+
+ /* Add 'type': 'DOCUMENT-START'. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "type", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ "DOCUMENT-START", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ /* Display the output_document version numbers. */
+
+ if (input_event.data.document_start.version_directive)
+ {
+ yaml_version_directive_t *version
+ = input_event.data.document_start.version_directive;
+ char number[64];
+
+ /* Add 'version': {}. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "version", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ map = yaml_document_add_mapping(&output_document, NULL,
+ YAML_FLOW_MAPPING_STYLE);
+ if (!map) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, map)) goto document_error;
+
+ /* Add 'major': <number>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "major", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ sprintf(number, "%d", version->major);
+ value = yaml_document_add_scalar(&output_document, YAML_INT_TAG,
+ number, -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ map, key, value)) goto document_error;
+
+ /* Add 'minor': <number>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "minor", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ sprintf(number, "%d", version->minor);
+ value = yaml_document_add_scalar(&output_document, YAML_INT_TAG,
+ number, -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ map, key, value)) goto document_error;
+ }
+
+ /* Display the output_document tag directives. */
+
+ if (input_event.data.document_start.tag_directives.start
+ != input_event.data.document_start.tag_directives.end)
+ {
+ yaml_tag_directive_t *tag;
+
+ /* Add 'tags': []. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "tags", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ seq = yaml_document_add_sequence(&output_document, NULL,
+ YAML_BLOCK_SEQUENCE_STYLE);
+ if (!seq) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, seq)) goto document_error;
+
+ for (tag = input_event.data.document_start.tag_directives.start;
+ tag != input_event.data.document_start.tag_directives.end;
+ tag ++)
+ {
+ /* Add {}. */
+
+ map = yaml_document_add_mapping(&output_document, NULL,
+ YAML_FLOW_MAPPING_STYLE);
+ if (!map) goto document_error;
+ if (!yaml_document_append_sequence_item(&output_document,
+ seq, map)) goto document_error;
+
+ /* Add 'handle': <handle>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "handle", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ tag->handle, -1, YAML_DOUBLE_QUOTED_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ map, key, value)) goto document_error;
+
+ /* Add 'prefix': <prefix>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "prefix", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ tag->prefix, -1, YAML_DOUBLE_QUOTED_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ map, key, value)) goto document_error;
+ }
+ }
+
+ /* Add 'implicit': <flag>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "implicit", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, YAML_BOOL_TAG,
+ (input_event.data.document_start.implicit ?
+ "true" : "false"), -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ break;
+
+ case YAML_DOCUMENT_END_EVENT:
+
+ /* Add 'type': 'DOCUMENT-END'. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "type", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ "DOCUMENT-END", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ /* Add 'implicit': <flag>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "implicit", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, YAML_BOOL_TAG,
+ (input_event.data.document_end.implicit ?
+ "true" : "false"), -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ break;
+
+ case YAML_ALIAS_EVENT:
+
+ /* Add 'type': 'ALIAS'. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "type", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ "ALIAS", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ /* Add 'anchor': <anchor>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "anchor", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ input_event.data.alias.anchor, -1,
+ YAML_DOUBLE_QUOTED_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ break;
+
+ case YAML_SCALAR_EVENT:
+
+ /* Add 'type': 'SCALAR'. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "type", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ "SCALAR", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ /* Add 'anchor': <anchor>. */
+
+ if (input_event.data.scalar.anchor)
+ {
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "anchor", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ input_event.data.scalar.anchor, -1,
+ YAML_DOUBLE_QUOTED_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+ }
+
+ /* Add 'tag': <tag>. */
+
+ if (input_event.data.scalar.tag)
+ {
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "tag", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ input_event.data.scalar.tag, -1,
+ YAML_DOUBLE_QUOTED_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+ }
+
+ /* Add 'value': <value>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "value", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ input_event.data.scalar.value,
+ input_event.data.scalar.length,
+ YAML_DOUBLE_QUOTED_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ /* Display if the scalar tag is implicit. */
+
+ /* Add 'implicit': {} */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "version", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ map = yaml_document_add_mapping(&output_document, NULL,
+ YAML_FLOW_MAPPING_STYLE);
+ if (!map) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, map)) goto document_error;
+
+ /* Add 'plain': <flag>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "plain", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, YAML_BOOL_TAG,
+ (input_event.data.scalar.plain_implicit ?
+ "true" : "false"), -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ map, key, value)) goto document_error;
+
+ /* Add 'quoted': <flag>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "quoted", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, YAML_BOOL_TAG,
+ (input_event.data.scalar.quoted_implicit ?
+ "true" : "false"), -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ map, key, value)) goto document_error;
+
+ /* Display the style information. */
+
+ if (input_event.data.scalar.style)
+ {
+ yaml_scalar_style_t style = input_event.data.scalar.style;
+
+ /* Add 'style': <style>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "style", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ (style == YAML_PLAIN_SCALAR_STYLE ? "plain" :
+ style == YAML_SINGLE_QUOTED_SCALAR_STYLE ?
+ "single-quoted" :
+ style == YAML_DOUBLE_QUOTED_SCALAR_STYLE ?
+ "double-quoted" :
+ style == YAML_LITERAL_SCALAR_STYLE ? "literal" :
+ style == YAML_FOLDED_SCALAR_STYLE ? "folded" :
+ "unknown"), -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+ }
+
+ break;
+
+ case YAML_SEQUENCE_START_EVENT:
+
+ /* Add 'type': 'SEQUENCE-START'. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "type", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ "SEQUENCE-START", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ /* Add 'anchor': <anchor>. */
+
+ if (input_event.data.sequence_start.anchor)
+ {
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "anchor", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ input_event.data.sequence_start.anchor, -1,
+ YAML_DOUBLE_QUOTED_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+ }
+
+ /* Add 'tag': <tag>. */
+
+ if (input_event.data.sequence_start.tag)
+ {
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "tag", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ input_event.data.sequence_start.tag, -1,
+ YAML_DOUBLE_QUOTED_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+ }
+
+ /* Add 'implicit': <flag>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "implicit", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, YAML_BOOL_TAG,
+ (input_event.data.sequence_start.implicit ?
+ "true" : "false"), -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ /* Display the style information. */
+
+ if (input_event.data.sequence_start.style)
+ {
+ yaml_sequence_style_t style
+ = input_event.data.sequence_start.style;
+
+ /* Add 'style': <style>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "style", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ (style == YAML_BLOCK_SEQUENCE_STYLE ? "block" :
+ style == YAML_FLOW_SEQUENCE_STYLE ? "flow" :
+ "unknown"), -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+ }
+
+ break;
+
+ case YAML_SEQUENCE_END_EVENT:
+
+ /* Add 'type': 'SEQUENCE-END'. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "type", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ "SEQUENCE-END", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ break;
+
+ case YAML_MAPPING_START_EVENT:
+
+ /* Add 'type': 'MAPPING-START'. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "type", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ "MAPPING-START", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ /* Add 'anchor': <anchor>. */
+
+ if (input_event.data.mapping_start.anchor)
+ {
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "anchor", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ input_event.data.mapping_start.anchor, -1,
+ YAML_DOUBLE_QUOTED_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+ }
+
+ /* Add 'tag': <tag>. */
+
+ if (input_event.data.mapping_start.tag)
+ {
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "tag", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ input_event.data.mapping_start.tag, -1,
+ YAML_DOUBLE_QUOTED_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+ }
+
+ /* Add 'implicit': <flag>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "implicit", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, YAML_BOOL_TAG,
+ (input_event.data.mapping_start.implicit ?
+ "true" : "false"), -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ /* Display the style information. */
+
+ if (input_event.data.sequence_start.style)
+ {
+ yaml_sequence_style_t style
+ = input_event.data.mapping_start.style;
+
+ /* Add 'style': <style>. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "style", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ (style == YAML_BLOCK_MAPPING_STYLE ? "block" :
+ style == YAML_FLOW_MAPPING_STYLE ? "flow" :
+ "unknown"), -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+ }
+
+ break;
+
+ case YAML_MAPPING_END_EVENT:
+
+ /* Add 'type': 'MAPPING-END'. */
+
+ key = yaml_document_add_scalar(&output_document, NULL,
+ "type", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!key) goto document_error;
+ value = yaml_document_add_scalar(&output_document, NULL,
+ "MAPPING-END", -1, YAML_PLAIN_SCALAR_STYLE);
+ if (!value) goto document_error;
+ if (!yaml_document_append_mapping_pair(&output_document,
+ properties, key, value)) goto document_error;
+
+ break;
+
+ default:
+ /* It couldn't really happen. */
+ break;
+ }
+
+ /* Delete the event object. */
+
+ yaml_event_delete(&input_event);
+ }
+
+ if (!yaml_emitter_dump(&emitter, &output_document))
+ goto emitter_error;
+ if (!yaml_emitter_close(&emitter))
+ goto emitter_error;
+
+ yaml_parser_delete(&parser);
+ yaml_emitter_delete(&emitter);
+
+ return 0;
+
+parser_error:
+
+ /* Display a parser error message. */
+
+ switch (parser.error)
+ {
+ case YAML_MEMORY_ERROR:
+ fprintf(stderr, "Memory error: Not enough memory for parsing\n");
+ break;
+
+ case YAML_READER_ERROR:
+ if (parser.problem_value != -1) {
+ fprintf(stderr, "Reader error: %s: #%X at %d\n", parser.problem,
+ parser.problem_value, parser.problem_offset);
+ }
+ else {
+ fprintf(stderr, "Reader error: %s at %d\n", parser.problem,
+ parser.problem_offset);
+ }
+ break;
+
+ case YAML_SCANNER_ERROR:
+ if (parser.context) {
+ fprintf(stderr, "Scanner error: %s at line %d, column %d\n"
+ "%s at line %d, column %d\n", parser.context,
+ parser.context_mark.line+1, parser.context_mark.column+1,
+ parser.problem, parser.problem_mark.line+1,
+ parser.problem_mark.column+1);
+ }
+ else {
+ fprintf(stderr, "Scanner error: %s at line %d, column %d\n",
+ parser.problem, parser.problem_mark.line+1,
+ parser.problem_mark.column+1);
+ }
+ break;
+
+ case YAML_PARSER_ERROR:
+ if (parser.context) {
+ fprintf(stderr, "Parser error: %s at line %d, column %d\n"
+ "%s at line %d, column %d\n", parser.context,
+ parser.context_mark.line+1, parser.context_mark.column+1,
+ parser.problem, parser.problem_mark.line+1,
+ parser.problem_mark.column+1);
+ }
+ else {
+ fprintf(stderr, "Parser error: %s at line %d, column %d\n",
+ parser.problem, parser.problem_mark.line+1,
+ parser.problem_mark.column+1);
+ }
+ break;
+
+ default:
+ /* Couldn't happen. */
+ fprintf(stderr, "Internal error\n");
+ break;
+ }
+
+ yaml_event_delete(&input_event);
+ yaml_document_delete(&output_document);
+ yaml_parser_delete(&parser);
+ yaml_emitter_delete(&emitter);
+
+ return 1;
+
+emitter_error:
+
+ /* Display an emitter error message. */
+
+ switch (emitter.error)
+ {
+ case YAML_MEMORY_ERROR:
+ fprintf(stderr, "Memory error: Not enough memory for emitting\n");
+ break;
+
+ case YAML_WRITER_ERROR:
+ fprintf(stderr, "Writer error: %s\n", emitter.problem);
+ break;
+
+ case YAML_EMITTER_ERROR:
+ fprintf(stderr, "Emitter error: %s\n", emitter.problem);
+ break;
+
+ default:
+ /* Couldn't happen. */
+ fprintf(stderr, "Internal error\n");
+ break;
+ }
+
+ yaml_event_delete(&input_event);
+ yaml_document_delete(&output_document);
+ yaml_parser_delete(&parser);
+ yaml_emitter_delete(&emitter);
+
+ return 1;
+
+document_error:
+
+ fprintf(stderr, "Memory error: Not enough memory for creating a document\n");
+
+ yaml_event_delete(&input_event);
+ yaml_document_delete(&output_document);
+ yaml_parser_delete(&parser);
+ yaml_emitter_delete(&emitter);
+
+ return 1;
+}
+