greenplumn yaml_private 源码
greenplumn yaml_private 代码
文件路径：/gpcontrib/gpmapreduce/src/yaml_private.h
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <yaml.h>
#include <assert.h>
#include <limits.h>
/*
* Memory management.
*/
YAML_DECLARE(void *)
yaml_malloc(size_t size);
YAML_DECLARE(void *)
yaml_realloc(void *ptr, size_t size);
YAML_DECLARE(void)
yaml_free(void *ptr);
YAML_DECLARE(yaml_char_t *)
yaml_strdup(const yaml_char_t *);
/*
* Reader: Ensure that the buffer contains at least `length` characters.
*/
YAML_DECLARE(int)
yaml_parser_update_buffer(yaml_parser_t *parser, size_t length);
/*
* Scanner: Ensure that the token stack contains at least one token ready.
*/
YAML_DECLARE(int)
yaml_parser_fetch_more_tokens(yaml_parser_t *parser);
/*
* The size of the input raw buffer.
*/
#define INPUT_RAW_BUFFER_SIZE 16384
/*
* The size of the input buffer.
*
* It should be possible to decode the whole raw buffer.
*/
#define INPUT_BUFFER_SIZE (INPUT_RAW_BUFFER_SIZE*3)
/*
* The size of the output buffer.
*/
#define OUTPUT_BUFFER_SIZE 16384
/*
* The size of the output raw buffer.
*
* It should be possible to encode the whole output buffer.
*/
#define OUTPUT_RAW_BUFFER_SIZE (OUTPUT_BUFFER_SIZE*2+2)
/*
* The size of other stacks and queues.
*/
#define INITIAL_STACK_SIZE 16
#define INITIAL_QUEUE_SIZE 16
#define INITIAL_STRING_SIZE 16
/*
* Buffer management.
*/
#define BUFFER_INIT(context,buffer,size) \
(((buffer).start = yaml_malloc(size)) ? \
((buffer).last = (buffer).pointer = (buffer).start, \
(buffer).end = (buffer).start+(size), \
1) : \
((context)->error = YAML_MEMORY_ERROR, \
0))
#define BUFFER_DEL(context,buffer) \
(yaml_free((buffer).start), \
(buffer).start = (buffer).pointer = (buffer).end = 0)
/*
* String management.
*/
typedef struct {
yaml_char_t *start;
yaml_char_t *end;
yaml_char_t *pointer;
} yaml_string_t;
YAML_DECLARE(int)
yaml_string_extend(yaml_char_t **start,
yaml_char_t **pointer, yaml_char_t **end);
YAML_DECLARE(int)
yaml_string_join(
yaml_char_t **a_start, yaml_char_t **a_pointer, yaml_char_t **a_end,
yaml_char_t **b_start, yaml_char_t **b_pointer, yaml_char_t **b_end);
#define NULL_STRING { NULL, NULL, NULL }
#define STRING(string,length) { (string), (string)+(length), (string) }
#define STRING_INIT(context,string,size) \
(((string).start = yaml_malloc(size)) ? \
((string).pointer = (string).start, \
(string).end = (string).start+(size), \
memset((string).start, 0, (size)), \
1) : \
((context)->error = YAML_MEMORY_ERROR, \
0))
#define STRING_DEL(context,string) \
(yaml_free((string).start), \
(string).start = (string).pointer = (string).end = 0)
#define STRING_EXTEND(context,string) \
(((string).pointer+5 < (string).end) \
|| yaml_string_extend(&(string).start, \
&(string).pointer, &(string).end))
#define CLEAR(context,string) \
((string).pointer = (string).start, \
memset((string).start, 0, (string).end-(string).start))
#define JOIN(context,string_a,string_b) \
((yaml_string_join(&(string_a).start, &(string_a).pointer, \
&(string_a).end, &(string_b).start, \
&(string_b).pointer, &(string_b).end)) ? \
((string_b).pointer = (string_b).start, \
1) : \
((context)->error = YAML_MEMORY_ERROR, \
0))
/*
* String check operations.
*/
/*
* Check the octet at the specified position.
*/
#define CHECK_AT(string,octet,offset) \
((string).pointer[offset] == (yaml_char_t)(octet))
/*
* Check the current octet in the buffer.
*/
#define CHECK(string,octet) CHECK_AT((string),(octet),0)
/*
* Check if the character at the specified position is an alphabetical
* character, a digit, '_', or '-'.
*/
#define IS_ALPHA_AT(string,offset) \
(((string).pointer[offset] >= (yaml_char_t) '0' && \
(string).pointer[offset] <= (yaml_char_t) '9') || \
((string).pointer[offset] >= (yaml_char_t) 'A' && \
(string).pointer[offset] <= (yaml_char_t) 'Z') || \
((string).pointer[offset] >= (yaml_char_t) 'a' && \
(string).pointer[offset] <= (yaml_char_t) 'z') || \
(string).pointer[offset] == '_' || \
(string).pointer[offset] == '-')
#define IS_ALPHA(string) IS_ALPHA_AT((string),0)
/*
* Check if the character at the specified position is a digit.
*/
#define IS_DIGIT_AT(string,offset) \
(((string).pointer[offset] >= (yaml_char_t) '0' && \
(string).pointer[offset] <= (yaml_char_t) '9'))
#define IS_DIGIT(string) IS_DIGIT_AT((string),0)
/*
* Get the value of a digit.
*/
#define AS_DIGIT_AT(string,offset) \
((string).pointer[offset] - (yaml_char_t) '0')
#define AS_DIGIT(string) AS_DIGIT_AT((string),0)
/*
* Check if the character at the specified position is a hex-digit.
*/
#define IS_HEX_AT(string,offset) \
(((string).pointer[offset] >= (yaml_char_t) '0' && \
(string).pointer[offset] <= (yaml_char_t) '9') || \
((string).pointer[offset] >= (yaml_char_t) 'A' && \
(string).pointer[offset] <= (yaml_char_t) 'F') || \
((string).pointer[offset] >= (yaml_char_t) 'a' && \
(string).pointer[offset] <= (yaml_char_t) 'f'))
#define IS_HEX(string) IS_HEX_AT((string),0)
/*
* Get the value of a hex-digit.
*/
#define AS_HEX_AT(string,offset) \
(((string).pointer[offset] >= (yaml_char_t) 'A' && \
(string).pointer[offset] <= (yaml_char_t) 'F') ? \
((string).pointer[offset] - (yaml_char_t) 'A' + 10) : \
((string).pointer[offset] >= (yaml_char_t) 'a' && \
(string).pointer[offset] <= (yaml_char_t) 'f') ? \
((string).pointer[offset] - (yaml_char_t) 'a' + 10) : \
((string).pointer[offset] - (yaml_char_t) '0'))
#define AS_HEX(string) AS_HEX_AT((string),0)
/*
* Check if the character is ASCII.
*/
#define IS_ASCII_AT(string,offset) \
((string).pointer[offset] <= (yaml_char_t) '\x7F')
#define IS_ASCII(string) IS_ASCII_AT((string),0)
/*
* Check if the character can be printed unescaped.
*/
#define IS_PRINTABLE_AT(string,offset) \
(((string).pointer[offset] == 0x0A) /* . == #x0A */ \
|| ((string).pointer[offset] >= 0x20 /* #x20 <= . <= #x7E */ \
&& (string).pointer[offset] <= 0x7E) \
|| ((string).pointer[offset] == 0xC2 /* #0xA0 <= . <= #xD7FF */ \
&& (string).pointer[offset+1] >= 0xA0) \
|| ((string).pointer[offset] > 0xC2 \
&& (string).pointer[offset] < 0xED) \
|| ((string).pointer[offset] == 0xED \
&& (string).pointer[offset+1] < 0xA0) \
|| ((string).pointer[offset] == 0xEE) \
|| ((string).pointer[offset] == 0xEF /* #xE000 <= . <= #xFFFD */ \
&& !((string).pointer[offset+1] == 0xBB /* && . != #xFEFF */ \
&& (string).pointer[offset+2] == 0xBF) \
&& !((string).pointer[offset+1] == 0xBF \
&& ((string).pointer[offset+2] == 0xBE \
|| (string).pointer[offset+2] == 0xBF))))
#define IS_PRINTABLE(string) IS_PRINTABLE_AT((string),0)
/*
* Check if the character at the specified position is NUL.
*/
#define IS_Z_AT(string,offset) CHECK_AT((string),'\0',(offset))
#define IS_Z(string) IS_Z_AT((string),0)
/*
* Check if the character at the specified position is BOM.
*/
#define IS_BOM_AT(string,offset) \
(CHECK_AT((string),'\xEF',(offset)) \
&& CHECK_AT((string),'\xBB',(offset)+1) \
&& CHECK_AT((string),'\xBF',(offset)+2)) /* BOM (#xFEFF) */
#define IS_BOM(string) IS_BOM_AT(string,0)
/*
* Check if the character at the specified position is space.
*/
#define IS_SPACE_AT(string,offset) CHECK_AT((string),' ',(offset))
#define IS_SPACE(string) IS_SPACE_AT((string),0)
/*
* Check if the character at the specified position is tab.
*/
#define IS_TAB_AT(string,offset) CHECK_AT((string),'\t',(offset))
#define IS_TAB(string) IS_TAB_AT((string),0)
/*
* Check if the character at the specified position is blank (space or tab).
*/
#define IS_BLANK_AT(string,offset) \
(IS_SPACE_AT((string),(offset)) || IS_TAB_AT((string),(offset)))
#define IS_BLANK(string) IS_BLANK_AT((string),0)
/*
* Check if the character at the specified position is a line break.
*/
#define IS_BREAK_AT(string,offset) \
(CHECK_AT((string),'\r',(offset)) /* CR (#xD)*/ \
|| CHECK_AT((string),'\n',(offset)) /* LF (#xA) */ \
|| (CHECK_AT((string),'\xC2',(offset)) \
&& CHECK_AT((string),'\x85',(offset)+1)) /* NEL (#x85) */ \
|| (CHECK_AT((string),'\xE2',(offset)) \
&& CHECK_AT((string),'\x80',(offset)+1) \
&& CHECK_AT((string),'\xA8',(offset)+2)) /* LS (#x2028) */ \
|| (CHECK_AT((string),'\xE2',(offset)) \
&& CHECK_AT((string),'\x80',(offset)+1) \
&& CHECK_AT((string),'\xA9',(offset)+2))) /* PS (#x2029) */
#define IS_BREAK(string) IS_BREAK_AT((string),0)
#define IS_CRLF_AT(string,offset) \
(CHECK_AT((string),'\r',(offset)) && CHECK_AT((string),'\n',(offset)+1))
#define IS_CRLF(string) IS_CRLF_AT((string),0)
/*
* Check if the character is a line break or NUL.
*/
#define IS_BREAKZ_AT(string,offset) \
(IS_BREAK_AT((string),(offset)) || IS_Z_AT((string),(offset)))
#define IS_BREAKZ(string) IS_BREAKZ_AT((string),0)
/*
* Check if the character is a line break, space, or NUL.
*/
#define IS_SPACEZ_AT(string,offset) \
(IS_SPACE_AT((string),(offset)) || IS_BREAKZ_AT((string),(offset)))
#define IS_SPACEZ(string) IS_SPACEZ_AT((string),0)
/*
* Check if the character is a line break, space, tab, or NUL.
*/
#define IS_BLANKZ_AT(string,offset) \
(IS_BLANK_AT((string),(offset)) || IS_BREAKZ_AT((string),(offset)))
#define IS_BLANKZ(string) IS_BLANKZ_AT((string),0)
/*
* Determine the width of the character.
*/
#define WIDTH_AT(string,offset) \
(((string).pointer[offset] & 0x80) == 0x00 ? 1 : \
((string).pointer[offset] & 0xE0) == 0xC0 ? 2 : \
((string).pointer[offset] & 0xF0) == 0xE0 ? 3 : \
((string).pointer[offset] & 0xF8) == 0xF0 ? 4 : 0)
#define WIDTH(string) WIDTH_AT((string),0)
/*
* Move the string pointer to the next character.
*/
#define MOVE(string) ((string).pointer += WIDTH((string)))
/*
* Copy a character and move the pointers of both strings.
*/
#define COPY(string_a,string_b) \
((*(string_b).pointer & 0x80) == 0x00 ? \
(*((string_a).pointer++) = *((string_b).pointer++)) : \
(*(string_b).pointer & 0xE0) == 0xC0 ? \
(*((string_a).pointer++) = *((string_b).pointer++), \
*((string_a).pointer++) = *((string_b).pointer++)) : \
(*(string_b).pointer & 0xF0) == 0xE0 ? \
(*((string_a).pointer++) = *((string_b).pointer++), \
*((string_a).pointer++) = *((string_b).pointer++), \
*((string_a).pointer++) = *((string_b).pointer++)) : \
(*(string_b).pointer & 0xF8) == 0xF0 ? \
(*((string_a).pointer++) = *((string_b).pointer++), \
*((string_a).pointer++) = *((string_b).pointer++), \
*((string_a).pointer++) = *((string_b).pointer++), \
*((string_a).pointer++) = *((string_b).pointer++)) : 0)
/*
* Stack and queue management.
*/
YAML_DECLARE(int)
yaml_stack_extend(void **start, void **top, void **end);
YAML_DECLARE(int)
yaml_queue_extend(void **start, void **head, void **tail, void **end);
#define STACK_INIT(context,stack,size) \
(((stack).start = yaml_malloc((size)*sizeof(*(stack).start))) ? \
((stack).top = (stack).start, \
(stack).end = (stack).start+(size), \
1) : \
((context)->error = YAML_MEMORY_ERROR, \
0))
#define STACK_DEL(context,stack) \
(yaml_free((stack).start), \
(stack).start = (stack).top = (stack).end = 0)
#define STACK_EMPTY(context,stack) \
((stack).start == (stack).top)
#define PUSH(context,stack,value) \
(((stack).top != (stack).end \
|| yaml_stack_extend((void **)&(stack).start, \
(void **)&(stack).top, (void **)&(stack).end)) ? \
(*((stack).top++) = value, \
1) : \
((context)->error = YAML_MEMORY_ERROR, \
0))
#define POP(context,stack) \
(*(--(stack).top))
#define QUEUE_INIT(context,queue,size) \
(((queue).start = yaml_malloc((size)*sizeof(*(queue).start))) ? \
((queue).head = (queue).tail = (queue).start, \
(queue).end = (queue).start+(size), \
1) : \
((context)->error = YAML_MEMORY_ERROR, \
0))
#define QUEUE_DEL(context,queue) \
(yaml_free((queue).start), \
(queue).start = (queue).head = (queue).tail = (queue).end = 0)
#define QUEUE_EMPTY(context,queue) \
((queue).head == (queue).tail)
#define ENQUEUE(context,queue,value) \
(((queue).tail != (queue).end \
|| yaml_queue_extend((void **)&(queue).start, (void **)&(queue).head, \
(void **)&(queue).tail, (void **)&(queue).end)) ? \
(*((queue).tail++) = value, \
1) : \
((context)->error = YAML_MEMORY_ERROR, \
0))
#define DEQUEUE(context,queue) \
(*((queue).head++))
#define QUEUE_INSERT(context,queue,index,value) \
(((queue).tail != (queue).end \
|| yaml_queue_extend((void **)&(queue).start, (void **)&(queue).head, \
(void **)&(queue).tail, (void **)&(queue).end)) ? \
(memmove((queue).head+(index)+1,(queue).head+(index), \
((queue).tail-(queue).head-(index))*sizeof(*(queue).start)), \
*((queue).head+(index)) = value, \
(queue).tail++, \
1) : \
((context)->error = YAML_MEMORY_ERROR, \
0))
/*
* Token initializers.
*/
#define TOKEN_INIT(token,token_type,token_start_mark,token_end_mark) \
(memset(&(token), 0, sizeof(yaml_token_t)), \
(token).type = (token_type), \
(token).start_mark = (token_start_mark), \
(token).end_mark = (token_end_mark))
#define STREAM_START_TOKEN_INIT(token,token_encoding,start_mark,end_mark) \
(TOKEN_INIT((token),YAML_STREAM_START_TOKEN,(start_mark),(end_mark)), \
(token).data.stream_start.encoding = (token_encoding))
#define STREAM_END_TOKEN_INIT(token,start_mark,end_mark) \
(TOKEN_INIT((token),YAML_STREAM_END_TOKEN,(start_mark),(end_mark)))
#define ALIAS_TOKEN_INIT(token,token_value,start_mark,end_mark) \
(TOKEN_INIT((token),YAML_ALIAS_TOKEN,(start_mark),(end_mark)), \
(token).data.alias.value = (token_value))
#define ANCHOR_TOKEN_INIT(token,token_value,start_mark,end_mark) \
(TOKEN_INIT((token),YAML_ANCHOR_TOKEN,(start_mark),(end_mark)), \
(token).data.anchor.value = (token_value))
#define TAG_TOKEN_INIT(token,token_handle,token_suffix,start_mark,end_mark) \
(TOKEN_INIT((token),YAML_TAG_TOKEN,(start_mark),(end_mark)), \
(token).data.tag.handle = (token_handle), \
(token).data.tag.suffix = (token_suffix))
#define SCALAR_TOKEN_INIT(token,token_value,token_length,token_style,start_mark,end_mark) \
(TOKEN_INIT((token),YAML_SCALAR_TOKEN,(start_mark),(end_mark)), \
(token).data.scalar.value = (token_value), \
(token).data.scalar.length = (token_length), \
(token).data.scalar.style = (token_style))
#define VERSION_DIRECTIVE_TOKEN_INIT(token,token_major,token_minor,start_mark,end_mark) \
(TOKEN_INIT((token),YAML_VERSION_DIRECTIVE_TOKEN,(start_mark),(end_mark)), \
(token).data.version_directive.major = (token_major), \
(token).data.version_directive.minor = (token_minor))
#define TAG_DIRECTIVE_TOKEN_INIT(token,token_handle,token_prefix,start_mark,end_mark) \
(TOKEN_INIT((token),YAML_TAG_DIRECTIVE_TOKEN,(start_mark),(end_mark)), \
(token).data.tag_directive.handle = (token_handle), \
(token).data.tag_directive.prefix = (token_prefix))
/*
* Event initializers.
*/
#define EVENT_INIT(event,event_type,event_start_mark,event_end_mark) \
(memset(&(event), 0, sizeof(yaml_event_t)), \
(event).type = (event_type), \
(event).start_mark = (event_start_mark), \
(event).end_mark = (event_end_mark))
#define STREAM_START_EVENT_INIT(event,event_encoding,start_mark,end_mark) \
(EVENT_INIT((event),YAML_STREAM_START_EVENT,(start_mark),(end_mark)), \
(event).data.stream_start.encoding = (event_encoding))
#define STREAM_END_EVENT_INIT(event,start_mark,end_mark) \
(EVENT_INIT((event),YAML_STREAM_END_EVENT,(start_mark),(end_mark)))
#define DOCUMENT_START_EVENT_INIT(event,event_version_directive, \
event_tag_directives_start,event_tag_directives_end,event_implicit,start_mark,end_mark) \
(EVENT_INIT((event),YAML_DOCUMENT_START_EVENT,(start_mark),(end_mark)), \
(event).data.document_start.version_directive = (event_version_directive), \
(event).data.document_start.tag_directives.start = (event_tag_directives_start), \
(event).data.document_start.tag_directives.end = (event_tag_directives_end), \
(event).data.document_start.implicit = (event_implicit))
#define DOCUMENT_END_EVENT_INIT(event,event_implicit,start_mark,end_mark) \
(EVENT_INIT((event),YAML_DOCUMENT_END_EVENT,(start_mark),(end_mark)), \
(event).data.document_end.implicit = (event_implicit))
#define ALIAS_EVENT_INIT(event,event_anchor,start_mark,end_mark) \
(EVENT_INIT((event),YAML_ALIAS_EVENT,(start_mark),(end_mark)), \
(event).data.alias.anchor = (event_anchor))
#define SCALAR_EVENT_INIT(event,event_anchor,event_tag,event_value,event_length, \
event_plain_implicit, event_quoted_implicit,event_style,start_mark,end_mark) \
(EVENT_INIT((event),YAML_SCALAR_EVENT,(start_mark),(end_mark)), \
(event).data.scalar.anchor = (event_anchor), \
(event).data.scalar.tag = (event_tag), \
(event).data.scalar.value = (event_value), \
(event).data.scalar.length = (event_length), \
(event).data.scalar.plain_implicit = (event_plain_implicit), \
(event).data.scalar.quoted_implicit = (event_quoted_implicit), \
(event).data.scalar.style = (event_style))
#define SEQUENCE_START_EVENT_INIT(event,event_anchor,event_tag, \
event_implicit,event_style,start_mark,end_mark) \
(EVENT_INIT((event),YAML_SEQUENCE_START_EVENT,(start_mark),(end_mark)), \
(event).data.sequence_start.anchor = (event_anchor), \
(event).data.sequence_start.tag = (event_tag), \
(event).data.sequence_start.implicit = (event_implicit), \
(event).data.sequence_start.style = (event_style))
#define SEQUENCE_END_EVENT_INIT(event,start_mark,end_mark) \
(EVENT_INIT((event),YAML_SEQUENCE_END_EVENT,(start_mark),(end_mark)))
#define MAPPING_START_EVENT_INIT(event,event_anchor,event_tag, \
event_implicit,event_style,start_mark,end_mark) \
(EVENT_INIT((event),YAML_MAPPING_START_EVENT,(start_mark),(end_mark)), \
(event).data.mapping_start.anchor = (event_anchor), \
(event).data.mapping_start.tag = (event_tag), \
(event).data.mapping_start.implicit = (event_implicit), \
(event).data.mapping_start.style = (event_style))
#define MAPPING_END_EVENT_INIT(event,start_mark,end_mark) \
(EVENT_INIT((event),YAML_MAPPING_END_EVENT,(start_mark),(end_mark)))
/*
* Document initializer.
*/
#define DOCUMENT_INIT(document,document_nodes_start,document_nodes_end, \
document_version_directive,document_tag_directives_start, \
document_tag_directives_end,document_start_implicit, \
document_end_implicit,document_start_mark,document_end_mark) \
(memset(&(document), 0, sizeof(yaml_document_t)), \
(document).nodes.start = (document_nodes_start), \
(document).nodes.end = (document_nodes_end), \
(document).nodes.top = (document_nodes_start), \
(document).version_directive = (document_version_directive), \
(document).tag_directives.start = (document_tag_directives_start), \
(document).tag_directives.end = (document_tag_directives_end), \
(document).start_implicit = (document_start_implicit), \
(document).end_implicit = (document_end_implicit), \
(document).start_mark = (document_start_mark), \
(document).end_mark = (document_end_mark))
/*
* Node initializers.
*/
#define NODE_INIT(node,node_type,node_tag,node_start_mark,node_end_mark) \
(memset(&(node), 0, sizeof(yaml_node_t)), \
(node).type = (node_type), \
(node).tag = (node_tag), \
(node).start_mark = (node_start_mark), \
(node).end_mark = (node_end_mark))
#define SCALAR_NODE_INIT(node,node_tag,node_value,node_length, \
node_style,start_mark,end_mark) \
(NODE_INIT((node),YAML_SCALAR_NODE,(node_tag),(start_mark),(end_mark)), \
(node).data.scalar.value = (node_value), \
(node).data.scalar.length = (node_length), \
(node).data.scalar.style = (node_style))
#define SEQUENCE_NODE_INIT(node,node_tag,node_items_start,node_items_end, \
node_style,start_mark,end_mark) \
(NODE_INIT((node),YAML_SEQUENCE_NODE,(node_tag),(start_mark),(end_mark)), \
(node).data.sequence.items.start = (node_items_start), \
(node).data.sequence.items.end = (node_items_end), \
(node).data.sequence.items.top = (node_items_start), \
(node).data.sequence.style = (node_style))
#define MAPPING_NODE_INIT(node,node_tag,node_pairs_start,node_pairs_end, \
node_style,start_mark,end_mark) \
(NODE_INIT((node),YAML_MAPPING_NODE,(node_tag),(start_mark),(end_mark)), \
(node).data.mapping.pairs.start = (node_pairs_start), \
(node).data.mapping.pairs.end = (node_pairs_end), \
(node).data.mapping.pairs.top = (node_pairs_start), \
(node).data.mapping.style = (node_style))
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