#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; }