diff options
Diffstat (limited to 'debian/vendor-h2o/deps/yoml/yoml-parser.h')
| -rw-r--r-- | debian/vendor-h2o/deps/yoml/yoml-parser.h | 391 |
1 files changed, 0 insertions, 391 deletions
diff --git a/debian/vendor-h2o/deps/yoml/yoml-parser.h b/debian/vendor-h2o/deps/yoml/yoml-parser.h deleted file mode 100644 index 78cdd44..0000000 --- a/debian/vendor-h2o/deps/yoml/yoml-parser.h +++ /dev/null @@ -1,391 +0,0 @@ -/* - * Copyright (c) 2014 DeNA Co., Ltd. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to - * deal in the Software without restriction, including without limitation the - * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - * IN THE SOFTWARE. - */ -#ifndef yoml_parser_h -#define yoml_parser_h - -#ifdef __cplusplus -extern "C" { -#endif - -#include <assert.h> -#include <stddef.h> -#include <stdlib.h> -#include <string.h> -#include <yaml.h> -#include "yoml.h" - -typedef struct st_yoml_parse_args_t { - const char *filename; - void *(*mem_set)(void *, int, size_t); - struct { - yoml_t *(*cb)(const char *tag, yoml_t *node, void *cb_arg); - void *cb_arg; - } resolve_tag; -} yoml_parse_args_t; - -static yoml_t *yoml__parse_node(yaml_parser_t *parser, yaml_event_type_t *last_event, yoml_parse_args_t *parse_args); - -static inline char *yoml__strdup(yaml_char_t *s) -{ - return strdup((char *)s); -} - -static inline yoml_t *yoml__new_node(const char *filename, yoml_type_t type, size_t sz, yaml_char_t *anchor, yaml_char_t *tag, yaml_event_t *event) -{ - yoml_t *node = malloc(sz); - node->filename = filename != NULL ? strdup(filename) : NULL; - node->type = type; - node->line = event->start_mark.line; - if (type == YOML_TYPE_SCALAR) { - switch (event->data.scalar.style) { - case YAML_LITERAL_SCALAR_STYLE: - case YAML_FOLDED_SCALAR_STYLE: - ++node->line; - break; - default: - break; - } - } - node->column = event->start_mark.column; - node->anchor = anchor != NULL ? yoml__strdup(anchor) : NULL; - node->tag = tag != NULL ? yoml__strdup(tag) : NULL; - node->_refcnt = 1; - return node; -} - -static inline yoml_t *yoml__parse_sequence(yaml_parser_t *parser, yaml_event_t *event, yoml_parse_args_t *parse_args) -{ - yoml_t *seq = yoml__new_node(parse_args->filename, YOML_TYPE_SEQUENCE, offsetof(yoml_t, data.sequence.elements), - event->data.sequence_start.anchor, event->data.sequence_start.tag, event); - - seq->data.sequence.size = 0; - - while (1) { - yoml_t *new_node; - yaml_event_type_t unhandled; - if ((new_node = yoml__parse_node(parser, &unhandled, parse_args)) == NULL) { - if (unhandled == YAML_SEQUENCE_END_EVENT) { - break; - } else { - yoml_free(seq, parse_args->mem_set); - seq = NULL; - break; - } - } - seq = realloc(seq, offsetof(yoml_t, data.sequence.elements) + sizeof(yoml_t *) * (seq->data.sequence.size + 1)); - seq->data.sequence.elements[seq->data.sequence.size++] = new_node; - } - - return seq; -} - -static inline yoml_t *yoml__parse_mapping(yaml_parser_t *parser, yaml_event_t *event, yoml_parse_args_t *parse_args) -{ - yoml_t *map = yoml__new_node(parse_args->filename, YOML_TYPE_MAPPING, offsetof(yoml_t, data.mapping.elements), - event->data.mapping_start.anchor, event->data.mapping_start.tag, event); - - map->data.mapping.size = 0; - - while (1) { - yoml_t *key, *value; - yaml_event_type_t unhandled; - if ((key = yoml__parse_node(parser, &unhandled, parse_args)) == NULL) { - if (unhandled == YAML_MAPPING_END_EVENT) { - break; - } else { - yoml_free(map, parse_args->mem_set); - map = NULL; - break; - } - } - if ((value = yoml__parse_node(parser, NULL, parse_args)) == NULL) { - yoml_free(map, parse_args->mem_set); - map = NULL; - break; - } - map = realloc(map, offsetof(yoml_t, data.mapping.elements) + sizeof(yoml_mapping_element_t) * (map->data.mapping.size + 1)); - map->data.mapping.elements[map->data.mapping.size].key = key; - map->data.mapping.elements[map->data.mapping.size].value = value; - ++map->data.mapping.size; - } - - return map; -} - -static yoml_t *yoml__parse_node(yaml_parser_t *parser, yaml_event_type_t *unhandled, yoml_parse_args_t *parse_args) -{ - yoml_t *node; - yaml_event_t event; - - if (unhandled != NULL) - *unhandled = YAML_NO_EVENT; - - /* wait for a node that is not a stream/doc start event */ - while (1) { - if (!yaml_parser_parse(parser, &event)) - return NULL; - if (!(event.type == YAML_STREAM_START_EVENT || event.type == YAML_DOCUMENT_START_EVENT)) - break; - yaml_event_delete(&event); - } - - switch (event.type) { - case YAML_ALIAS_EVENT: - node = yoml__new_node(parse_args->filename, YOML__TYPE_UNRESOLVED_ALIAS, sizeof(*node), NULL, NULL, &event); - node->data.alias = yoml__strdup(event.data.alias.anchor); - break; - case YAML_SCALAR_EVENT: - node = yoml__new_node(parse_args->filename, YOML_TYPE_SCALAR, sizeof(*node), event.data.scalar.anchor, event.data.scalar.tag, &event); - node->data.scalar = yoml__strdup(event.data.scalar.value); - if (parse_args->mem_set != NULL) - parse_args->mem_set(event.data.scalar.value, 'A', strlen(node->data.scalar)); - break; - case YAML_SEQUENCE_START_EVENT: - node = yoml__parse_sequence(parser, &event, parse_args); - break; - case YAML_MAPPING_START_EVENT: - node = yoml__parse_mapping(parser, &event, parse_args); - break; - default: - node = NULL; - if (unhandled != NULL) - *unhandled = event.type; - break; - } - - yaml_event_delete(&event); - - return node; -} - -static inline int yoml__merge(yoml_t **dest, size_t offset, yoml_t *src) -{ - yoml_t *key, *value; - size_t i, j; - - if (src->type != YOML_TYPE_MAPPING) - return -1; - - for (i = 0; i != src->data.mapping.size; ++i) { - key = src->data.mapping.elements[i].key; - value = src->data.mapping.elements[i].value; - if (key->type == YOML_TYPE_SCALAR) { - for (j = offset; j != (*dest)->data.mapping.size; ++j) { - if ((*dest)->data.mapping.elements[j].key->type == YOML_TYPE_SCALAR && - strcmp((*dest)->data.mapping.elements[j].key->data.scalar, key->data.scalar) == 0) - goto Skip; - } - } - *dest = realloc(*dest, offsetof(yoml_t, data.mapping.elements) + - ((*dest)->data.mapping.size + 1) * sizeof((*dest)->data.mapping.elements[0])); - memmove((*dest)->data.mapping.elements + offset + 1, (*dest)->data.mapping.elements + offset, - ((*dest)->data.mapping.size - offset) * sizeof((*dest)->data.mapping.elements[0])); - (*dest)->data.mapping.elements[offset].key = key; - ++key->_refcnt; - (*dest)->data.mapping.elements[offset].value = value; - ++value->_refcnt; - ++(*dest)->data.mapping.size; - ++offset; - Skip: - ; - } - - return 0; -} - -static inline int yoml__resolve_merge(yoml_t **target, yaml_parser_t *parser, yoml_parse_args_t *parse_args) -{ - size_t i, j; - - switch ((*target)->type) { - case YOML_TYPE_SCALAR: - break; - case YOML_TYPE_SEQUENCE: - for (i = 0; i != (*target)->data.sequence.size; ++i) { - if (yoml__resolve_merge((*target)->data.sequence.elements + i, parser, parse_args) != 0) - return -1; - } - break; - case YOML_TYPE_MAPPING: - if ((*target)->data.mapping.size != 0) { - i = (*target)->data.mapping.size; - do { - --i; - if (yoml__resolve_merge(&(*target)->data.mapping.elements[i].key, parser, parse_args) != 0) - return -1; - if (yoml__resolve_merge(&(*target)->data.mapping.elements[i].value, parser, parse_args) != 0) - return -1; - if ((*target)->data.mapping.elements[i].key->type == YOML_TYPE_SCALAR && - strcmp((*target)->data.mapping.elements[i].key->data.scalar, "<<") == 0) { - /* erase the slot (as well as preserving the values) */ - yoml_mapping_element_t src = (*target)->data.mapping.elements[i]; - memmove((*target)->data.mapping.elements + i, (*target)->data.mapping.elements + i + 1, - ((*target)->data.mapping.size - i - 1) * sizeof((*target)->data.mapping.elements[0])); - --(*target)->data.mapping.size; - /* merge */ - if (src.value->type == YOML_TYPE_SEQUENCE) { - for (j = 0; j != src.value->data.sequence.size; ++j) - if (yoml__merge(target, i, src.value->data.sequence.elements[j]) != 0) { - MergeError: - if (parser != NULL) { - parser->problem = "value of the merge key MUST be a mapping or a sequence of mappings"; - parser->problem_mark.line = src.key->line; - parser->problem_mark.column = src.key->column; - } - return -1; - } - } else { - if (yoml__merge(target, i, src.value) != 0) - goto MergeError; - } - /* cleanup */ - yoml_free(src.key, parse_args->mem_set); - yoml_free(src.value, parse_args->mem_set); - } - } while (i != 0); - } - break; - case YOML__TYPE_UNRESOLVED_ALIAS: - assert(!"unreachable"); - break; - } - - return 0; -} - - -static inline int yoml__resolve_alias(yoml_t **target, yoml_t *doc, yaml_parser_t *parser, yoml_parse_args_t *parse_args) -{ - size_t i; - - switch ((*target)->type) { - case YOML_TYPE_SCALAR: - break; - case YOML_TYPE_SEQUENCE: - for (i = 0; i != (*target)->data.sequence.size; ++i) { - if (yoml__resolve_alias((*target)->data.sequence.elements + i, doc, parser, parse_args) != 0) - return -1; - } - break; - case YOML_TYPE_MAPPING: - for (i = 0; i != (*target)->data.mapping.size; ++i) { - if (yoml__resolve_alias(&(*target)->data.mapping.elements[i].key, doc, parser, parse_args) != 0) - return -1; - if (yoml__resolve_alias(&(*target)->data.mapping.elements[i].value, doc, parser, parse_args) != 0) - return -1; - } - break; - case YOML__TYPE_UNRESOLVED_ALIAS: { - yoml_t *node = yoml_find_anchor(doc, (*target)->data.alias); - if (node == NULL) { - if (parser != NULL) { - parser->problem = "could not resolve the alias"; - parser->problem_mark.line = (*target)->line; - parser->problem_mark.column = (*target)->column; - } - return -1; - } - yoml_free(*target, parse_args->mem_set); - *target = node; - ++node->_refcnt; - } break; - } - - return 0; -} - -static inline int yoml__resolve_tag(yoml_t **target, yaml_parser_t *parser, yoml_parse_args_t *parse_args) -{ - size_t i; - - if (parse_args->resolve_tag.cb == NULL) - return 0; - - if ((*target)->tag != NULL) { - yoml_t *resolved = parse_args->resolve_tag.cb((*target)->tag, *target, parse_args->resolve_tag.cb_arg); - if (resolved == NULL) { - if (parser != NULL) { - parser->problem = "tag resolution failed"; - parser->problem_mark.line = (*target)->line; - parser->problem_mark.column = (*target)->column; - } - return -1; - } - yoml_free(*target, parse_args->mem_set); - *target = resolved; - } - - switch ((*target)->type) { - case YOML_TYPE_SCALAR: - break; - case YOML_TYPE_SEQUENCE: - for (i = 0; i != (*target)->data.sequence.size; ++i) { - if (yoml__resolve_tag((*target)->data.sequence.elements + i, parser, parse_args) != 0) - return -1; - } - break; - case YOML_TYPE_MAPPING: - for (i = 0; i != (*target)->data.mapping.size; ++i) { - if (yoml__resolve_tag(&(*target)->data.mapping.elements[i].key, parser, parse_args) != 0) - return -1; - if (yoml__resolve_tag(&(*target)->data.mapping.elements[i].value, parser, parse_args) != 0) - return -1; - } - break; - case YOML__TYPE_UNRESOLVED_ALIAS: - break; - } - - return 0; -} - -static inline yoml_t *yoml_parse_document(yaml_parser_t *parser, yaml_event_type_t *unhandled, yoml_parse_args_t *parse_args) -{ - yoml_t *doc; - - /* parse */ - if ((doc = yoml__parse_node(parser, unhandled, parse_args)) == NULL) { - return NULL; - } - if (unhandled != NULL) - *unhandled = YAML_NO_EVENT; - - /* resolve tags, aliases and merge */ - if (yoml__resolve_tag(&doc, parser, parse_args) != 0) - goto Error; - if (yoml__resolve_alias(&doc, doc, parser, parse_args) != 0) - goto Error; - if (yoml__resolve_merge(&doc, parser, parse_args) != 0) - goto Error; - - return doc; - -Error: - yoml_free(doc, parse_args->mem_set); - return NULL; -} - -#ifdef __cplusplus -} -#endif - -#endif |