[Yaml-core] Manually creating a Document in C

[James S. <uja...@gm...>]

Hello

     I work on a project that wants to move to support heavily YAML in it
binary tools. Currently I'm trying to take the tools arguments and build a
YAML document around it.
For example  the YAML doc in human readable format would be

*stats:*
*- source: MGC172.30.248.30@tcp;*

The code is:

const char *group = "stats";

yaml_document_t request;


memset(&request, *0*, *sizeof*(request));


*if* (!yaml_document_initialize(&request, *NULL*, *NULL*, *NULL*,

*    1*, *1*))

   *return* -*EINVAL*;


map = yaml_document_add_mapping(&request,

                               (yaml_char_t *)YAML_MAP_TAG,

                                YAML_BLOCK_MAPPING_STYLE);

*if* (!map)

   *return* -*EINVAL*;


key = yaml_document_add_scalar(&request,

                               (yaml_char_t *)YAML_STR_TAG,

                               (yaml_char_t *)group,

                               strlen(group),

                               YAML_PLAIN_SCALAR_STYLE);

*if* (!key)

   *return* -*EINVAL*;


value = yaml_document_add_scalar(&request,

                               (yaml_char_t *)YAML_STR_TAG,

                               (yaml_char_t *)*""*, *0*,

                               YAML_PLAIN_SCALAR_STYLE);

*if* (!value)

   *return* -*EINVAL*;


*if* (!yaml_document_append_mapping_pair(&request, map, key,

                                       value))

   *return* -*EINVAL*;


seq = yaml_document_add_sequence(&request,

                               (yaml_char_t *)YAML_SEQ_TAG,

                                YAML_BLOCK_SEQUENCE_STYLE);

*if* (!seq)

   *return* -*EINVAL*;


map = yaml_document_add_mapping(&request,

                               (yaml_char_t *)YAML_MAP_TAG,

                               YAML_BLOCK_MAPPING_STYLE);

*if* (!map)

   *return* -*EINVAL*;


*if* (!yaml_document_append_sequence_item(&request, seq,map))

   *return* -*EINVAL*;


key = yaml_document_add_scalar(&request,

                               (yaml_char_t *)YAML_STR_TAG,

                               (yaml_char_t *)*"source"*, *6*,

                               YAML_PLAIN_SCALAR_STYLE);

*if* (!key)

    *return* -*EINVAL*;


value = yaml_document_add_scalar(&request,

                               (yaml_char_t *)YAML_STR_TAG,

                     (yaml_char_t*)*"MGC172.30.248.30@tcp"*,

                                *20*,

                                YAML_PLAIN_SCALAR_STYLE);

*if* (!value)

   *return* -*EINVAL*;


*if* (!yaml_document_append_mapping_pair(&request, map, key,
                         value))

    *return* -*EINVAL*;


Currently only "stats:" is printed. I have searched for someone else doing
this and it appears I'm the only one trying. Do you know what I'm doing
wrong? Thank you.