mrb_value
mrb_yaml_dump(mrb_state *mrb, mrb_value self)
{
yaml_emitter_t emitter;
yaml_document_t document;
mrb_value root;
yaml_write_data_t write_data;
/* Extract arguments */
mrb_get_args(mrb, "o", &root);
/* Build the document */
yaml_document_initialize(&document, NULL, NULL, NULL, 0, 0);
value_to_node(mrb, &document, root);
/* Initialize the emitter */
yaml_emitter_initialize(&emitter);
write_data.mrb = mrb;
write_data.str = mrb_str_new(mrb, NULL, 0);
yaml_emitter_set_output(&emitter, &yaml_write_handler, &write_data);
/* Dump the document */
yaml_emitter_open(&emitter);
yaml_emitter_dump(&emitter, &document);
yaml_emitter_close(&emitter);
/* Clean up */
yaml_emitter_delete(&emitter);
yaml_document_delete(&document);
return write_data.str;
}
void YamlEmitter::open()
{
fd_ = fopen(filename_.c_str(), "w");
if (!fd_)
throw YamlEmitterException("Could not open file descriptor");
if (!yaml_emitter_initialize(&emitter_))
throw YamlEmitterException("Could not initialize emitter");
// Allows unescaped unicode characters
yaml_emitter_set_unicode(&emitter_, 1);
yaml_emitter_set_output_file(&emitter_, fd_);
if (yaml_document_initialize(&document_, NULL, NULL, NULL, 0, 0) == 0)
throw YamlEmitterException("Could not initialize yaml document while saving configuration");
// Init the main configuration mapping
if ((topLevelMapping_ = yaml_document_add_mapping(&document_, NULL, YAML_BLOCK_MAPPING_STYLE)) == 0)
throw YamlEmitterException("Could not create top level mapping");
}
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 %zd\n", parser.problem,
parser.problem_value, parser.problem_offset);
}
else {
fprintf(stderr, "Reader error: %s at %zd\n", parser.problem,
parser.problem_offset);
}
break;
case YAML_SCANNER_ERROR:
if (parser.context) {
fprintf(stderr, "Scanner error: %s at line %lu, column %lu\n"
"%s at line %lu, column %lu\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 %lu, column %lu\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 %lu, column %lu\n"
"%s at line %lu, column %lu\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 %lu, column %lu\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;
}
int copy_document(yaml_document_t *document_to, yaml_document_t *document_from)
{
yaml_node_t *node;
yaml_node_item_t *item;
yaml_node_pair_t *pair;
if (!yaml_document_initialize(document_to, document_from->version_directive,
document_from->tag_directives.start,
document_from->tag_directives.end,
document_from->start_implicit, document_from->end_implicit))
return 0;
for (node = document_from->nodes.start;
node < document_from->nodes.top; node ++) {
switch (node->type) {
case YAML_SCALAR_NODE:
if (!yaml_document_add_scalar(document_to, node->tag,
node->data.scalar.value, node->data.scalar.length,
node->data.scalar.style)) goto error;
break;
case YAML_SEQUENCE_NODE:
if (!yaml_document_add_sequence(document_to, node->tag,
node->data.sequence.style)) goto error;
break;
case YAML_MAPPING_NODE:
if (!yaml_document_add_mapping(document_to, node->tag,
node->data.mapping.style)) goto error;
break;
default:
assert(0);
break;
}
}
for (node = document_from->nodes.start;
node < document_from->nodes.top; node ++) {
switch (node->type) {
case YAML_SEQUENCE_NODE:
for (item = node->data.sequence.items.start;
item < node->data.sequence.items.top; item ++) {
if (!yaml_document_append_sequence_item(document_to,
node - document_from->nodes.start + 1,
*item)) goto error;
}
break;
case YAML_MAPPING_NODE:
for (pair = node->data.mapping.pairs.start;
pair < node->data.mapping.pairs.top; pair ++) {
if (!yaml_document_append_mapping_pair(document_to,
node - document_from->nodes.start + 1,
pair->key, pair->value)) goto error;
}
break;
default:
break;
}
}
return 1;
error:
yaml_document_delete(document_to);
return 0;
}
