| // Copyright 2020 Google LLC |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "yaml.h" |
| #include "yaml_write_handler.h" |
| #include <assert.h> |
| #include <stdbool.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #ifdef NDEBUG |
| #undef NDEBUG |
| #endif |
| |
| int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { |
| if (size < 2) |
| return 0; |
| |
| bool done = false; |
| bool is_canonical = data[0] & 1; |
| bool is_unicode = data[1] & 1; |
| data += 2; |
| size -= 2; |
| |
| yaml_parser_t parser; |
| yaml_emitter_t emitter; |
| yaml_event_t input_event; |
| yaml_document_t output_document; |
| |
| int root; |
| |
| /* Initialize the parser and emitter objects. */ |
| |
| if (!yaml_parser_initialize(&parser)) { |
| return 1; |
| } |
| |
| if (!yaml_emitter_initialize(&emitter)) { |
| yaml_parser_delete(&parser); |
| return 1; |
| } |
| |
| /* Set the parser parameters. */ |
| |
| yaml_parser_set_input_string(&parser, data, size); |
| |
| /* Set the emitter parameters. */ |
| yaml_output_buffer_t out = {/*buf=*/NULL, /*size=*/0}; |
| yaml_emitter_set_output(&emitter, yaml_write_handler, &out); |
| |
| yaml_emitter_set_canonical(&emitter, is_canonical); |
| yaml_emitter_set_unicode(&emitter, is_unicode); |
| |
| /* Create and emit the STREAM-START event. */ |
| |
| if (!yaml_emitter_open(&emitter)) |
| goto error; |
| |
| /* Create a output_document object. */ |
| |
| if (!yaml_document_initialize(&output_document, NULL, NULL, NULL, 0, 0)) |
| goto error; |
| |
| /* Create the root sequence. */ |
| |
| root = yaml_document_add_sequence(&output_document, NULL, |
| YAML_BLOCK_SEQUENCE_STYLE); |
| if (!root) |
| goto 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 error; |
| |
| /* Check if this is the stream end. */ |
| |
| done = (input_event.type == YAML_STREAM_END_EVENT); |
| |
| /* 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 error; |
| if (!yaml_document_append_sequence_item(&output_document, root, properties)) |
| goto 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, |
| (yaml_char_t *)"type", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"STREAM-START", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto 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, |
| (yaml_char_t *)"encoding", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar( |
| &output_document, NULL, |
| (encoding == YAML_UTF8_ENCODING |
| ? (yaml_char_t *)"utf-8" |
| : encoding == YAML_UTF16LE_ENCODING |
| ? (yaml_char_t *)"utf-16-le" |
| : encoding == YAML_UTF16BE_ENCODING |
| ? (yaml_char_t *)"utf-16-be" |
| : (yaml_char_t *)"unknown"), |
| -1, YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, |
| key, value)) |
| goto error; |
| } |
| |
| break; |
| |
| case YAML_STREAM_END_EVENT: |
| |
| /* Add 'type': 'STREAM-END'. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"type", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"STREAM-END", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto error; |
| |
| break; |
| |
| case YAML_DOCUMENT_START_EVENT: |
| |
| /* Add 'type': 'DOCUMENT-START'. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"type", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"DOCUMENT-START", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto 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, |
| (yaml_char_t *)"version", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| map = yaml_document_add_mapping(&output_document, NULL, |
| YAML_FLOW_MAPPING_STYLE); |
| if (!map) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, |
| key, map)) |
| goto error; |
| |
| /* Add 'major': <number>. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"major", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| sprintf(number, "%d", version->major); |
| value = yaml_document_add_scalar( |
| &output_document, (yaml_char_t *)YAML_INT_TAG, |
| (yaml_char_t *)number, -1, YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, map, key, |
| value)) |
| goto error; |
| |
| /* Add 'minor': <number>. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"minor", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| sprintf(number, "%d", version->minor); |
| value = yaml_document_add_scalar( |
| &output_document, (yaml_char_t *)YAML_INT_TAG, |
| (yaml_char_t *)number, -1, YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, map, key, |
| value)) |
| goto 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, |
| (yaml_char_t *)"tags", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| seq = yaml_document_add_sequence(&output_document, NULL, |
| YAML_BLOCK_SEQUENCE_STYLE); |
| if (!seq) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, |
| key, seq)) |
| goto 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 error; |
| if (!yaml_document_append_sequence_item(&output_document, seq, map)) |
| goto error; |
| |
| /* Add 'handle': <handle>. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"handle", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, tag->handle, |
| -1, YAML_DOUBLE_QUOTED_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, map, key, |
| value)) |
| goto error; |
| |
| /* Add 'prefix': <prefix>. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"prefix", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, tag->prefix, |
| -1, YAML_DOUBLE_QUOTED_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, map, key, |
| value)) |
| goto error; |
| } |
| } |
| |
| /* Add 'implicit': <flag>. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"implicit", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar( |
| &output_document, (yaml_char_t *)YAML_BOOL_TAG, |
| (input_event.data.document_start.implicit ? (yaml_char_t *)"true" |
| : (yaml_char_t *)"false"), |
| -1, YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto error; |
| |
| break; |
| |
| case YAML_DOCUMENT_END_EVENT: |
| |
| /* Add 'type': 'DOCUMENT-END'. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"type", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"DOCUMENT-END", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto error; |
| |
| /* Add 'implicit': <flag>. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"implicit", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar( |
| &output_document, (yaml_char_t *)YAML_BOOL_TAG, |
| (input_event.data.document_end.implicit ? (yaml_char_t *)"true" |
| : (yaml_char_t *)"false"), |
| -1, YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto error; |
| |
| break; |
| |
| case YAML_ALIAS_EVENT: |
| |
| /* Add 'type': 'ALIAS'. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"type", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"ALIAS", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto error; |
| |
| /* Add 'anchor': <anchor>. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"anchor", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| input_event.data.alias.anchor, -1, |
| YAML_DOUBLE_QUOTED_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto error; |
| |
| break; |
| |
| case YAML_SCALAR_EVENT: |
| |
| /* Add 'type': 'SCALAR'. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"type", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"SCALAR", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto error; |
| |
| /* Add 'anchor': <anchor>. */ |
| |
| if (input_event.data.scalar.anchor) { |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"anchor", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| input_event.data.scalar.anchor, -1, |
| YAML_DOUBLE_QUOTED_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, |
| key, value)) |
| goto error; |
| } |
| |
| /* Add 'tag': <tag>. */ |
| |
| if (input_event.data.scalar.tag) { |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"tag", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| input_event.data.scalar.tag, -1, |
| YAML_DOUBLE_QUOTED_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, |
| key, value)) |
| goto error; |
| } |
| |
| /* Add 'value': <value>. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"value", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto 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 error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto error; |
| |
| /* Display if the scalar tag is implicit. */ |
| |
| /* Add 'implicit': {} */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"version", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| map = yaml_document_add_mapping(&output_document, NULL, |
| YAML_FLOW_MAPPING_STYLE); |
| if (!map) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| map)) |
| goto error; |
| |
| /* Add 'plain': <flag>. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"plain", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar( |
| &output_document, (yaml_char_t *)YAML_BOOL_TAG, |
| (input_event.data.scalar.plain_implicit ? (yaml_char_t *)"true" |
| : (yaml_char_t *)"false"), |
| -1, YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, map, key, value)) |
| goto error; |
| |
| /* Add 'quoted': <flag>. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"quoted", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar( |
| &output_document, (yaml_char_t *)YAML_BOOL_TAG, |
| (input_event.data.scalar.quoted_implicit ? (yaml_char_t *)"true" |
| : (yaml_char_t *)"false"), |
| -1, YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, map, key, value)) |
| goto 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, |
| (yaml_char_t *)"style", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar( |
| &output_document, NULL, |
| (yaml_char_t |
| *)(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 error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, |
| key, value)) |
| goto error; |
| } |
| |
| break; |
| |
| case YAML_SEQUENCE_START_EVENT: |
| |
| /* Add 'type': 'SEQUENCE-START'. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"type", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"SEQUENCE-START", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto error; |
| |
| /* Add 'anchor': <anchor>. */ |
| |
| if (input_event.data.sequence_start.anchor) { |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"anchor", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| input_event.data.sequence_start.anchor, |
| -1, YAML_DOUBLE_QUOTED_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, |
| key, value)) |
| goto error; |
| } |
| |
| /* Add 'tag': <tag>. */ |
| |
| if (input_event.data.sequence_start.tag) { |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"tag", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| input_event.data.sequence_start.tag, |
| -1, YAML_DOUBLE_QUOTED_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, |
| key, value)) |
| goto error; |
| } |
| |
| /* Add 'implicit': <flag>. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"implicit", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar( |
| &output_document, (yaml_char_t *)YAML_BOOL_TAG, |
| (input_event.data.sequence_start.implicit ? (yaml_char_t *)"true" |
| : (yaml_char_t *)"false"), |
| -1, YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto 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, |
| (yaml_char_t *)"style", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar( |
| &output_document, NULL, |
| (yaml_char_t *)(style == YAML_BLOCK_SEQUENCE_STYLE |
| ? "block" |
| : style == YAML_FLOW_SEQUENCE_STYLE |
| ? "flow" |
| : "unknown"), |
| -1, YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, |
| key, value)) |
| goto error; |
| } |
| |
| break; |
| |
| case YAML_SEQUENCE_END_EVENT: |
| |
| /* Add 'type': 'SEQUENCE-END'. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"type", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"SEQUENCE-END", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto error; |
| |
| break; |
| |
| case YAML_MAPPING_START_EVENT: |
| |
| /* Add 'type': 'MAPPING-START'. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"type", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"MAPPING-START", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto error; |
| |
| /* Add 'anchor': <anchor>. */ |
| |
| if (input_event.data.mapping_start.anchor) { |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"anchor", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| input_event.data.mapping_start.anchor, |
| -1, YAML_DOUBLE_QUOTED_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, |
| key, value)) |
| goto error; |
| } |
| |
| /* Add 'tag': <tag>. */ |
| |
| if (input_event.data.mapping_start.tag) { |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"tag", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| input_event.data.mapping_start.tag, -1, |
| YAML_DOUBLE_QUOTED_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, |
| key, value)) |
| goto error; |
| } |
| |
| /* Add 'implicit': <flag>. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"implicit", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar( |
| &output_document, (yaml_char_t *)YAML_BOOL_TAG, |
| (yaml_char_t *)(input_event.data.mapping_start.implicit ? "true" |
| : "false"), |
| -1, YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto 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, |
| (yaml_char_t *)"style", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar( |
| &output_document, NULL, |
| (yaml_char_t *)(style == YAML_BLOCK_MAPPING_STYLE |
| ? "block" |
| : style == YAML_FLOW_MAPPING_STYLE ? "flow" |
| : "unknown"), |
| -1, YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, |
| key, value)) |
| goto error; |
| } |
| |
| break; |
| |
| case YAML_MAPPING_END_EVENT: |
| |
| /* Add 'type': 'MAPPING-END'. */ |
| |
| key = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"type", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!key) |
| goto error; |
| value = yaml_document_add_scalar(&output_document, NULL, |
| (yaml_char_t *)"MAPPING-END", -1, |
| YAML_PLAIN_SCALAR_STYLE); |
| if (!value) |
| goto error; |
| if (!yaml_document_append_mapping_pair(&output_document, properties, key, |
| value)) |
| goto 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 error; |
| |
| yaml_emitter_close(&emitter); |
| |
| error: |
| |
| free(out.buf); |
| |
| yaml_event_delete(&input_event); |
| yaml_document_delete(&output_document); |
| yaml_parser_delete(&parser); |
| yaml_emitter_delete(&emitter); |
| |
| return 0; |
| } |
