<libroxml  version="3.0.1" />
contact: tristan.lelong@libroxml.net
roxml_file.c
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1 
12 #include <stdlib.h>
13 #include <string.h>
14 #include "roxml_core.h"
15 #include "roxml_parser.h"
16 #include "roxml_internal.h"
17 
18 ROXML_INT int roxml_read_file(int pos, int size, char *buffer, node_t *node)
19 {
20  int ret_len = 0;
21 
22  if (fseek(node->src.fil, pos, SEEK_SET) == 0)
23  ret_len = fread(buffer, 1, size, node->src.fil);
24 
25  return ret_len;
26 }
27 
28 ROXML_INT void roxml_close_file(node_t *root)
29 {
30  fclose(root->src.fil);
31 }
32 
33 ROXML_INT int roxml_parse_file(roxml_load_ctx_t *context, roxml_parser_item_t *parser, FILE *file)
34 {
35  char *int_buffer;
36  int error = 0;
37  int circle = 0;
38  int int_len = 0;
39 
40  context->type = ROXML_FILE;
41  context->src = (void *)file;
42  context->pos = 0;
43 
44  int_buffer = malloc(ROXML_BULK_READ + 1);
45 
46  do {
47  int ret = 0;
48  int chunk_len = 0;
49  int_len = fread(int_buffer + circle, 1, ROXML_BULK_READ - circle, file) + circle;
50  int_buffer[int_len] = '\0';
51 
52  if (int_len == ROXML_BULK_READ)
53  chunk_len = int_len - ROXML_BASE_LEN;
54  else
55  chunk_len = int_len;
56 
57  ret = roxml_parse_line(parser, int_buffer, chunk_len, context);
58  circle = int_len - ret;
59  if ((ret < 0) || (circle < 0)) {
60  error = 1;
61  break;
62  }
63  memmove(int_buffer, int_buffer + ret, circle);
64  } while (int_len == ROXML_BULK_READ);
65 
66  free(int_buffer);
67 
68  if (error == 0 && context->lvl != 0)
69  ROXML_PARSE_ERROR("mismatch in open/close nodes");
70  return error;
71 }
72 
74 {
75  FILE *file = NULL;
76  node_t *current_node = NULL;
77 
78  if (fd < 0)
79  return NULL;
80 
81  file = fdopen(fd, "r");
82  if (file == NULL)
83  return ROXML_INVALID_DOC;
84 
85  current_node = roxml_create_node(0, file, ROXML_ELM_NODE | ROXML_FILE);
86 
87  return roxml_load(current_node, file, NULL);
88 }
89 
91 {
92  node_t *current_node = NULL;
93  FILE *file = fopen(filename, "rb");
94 
95  if (file == NULL)
96  return ROXML_INVALID_DOC;
97 
98  current_node = roxml_create_node(0, file, ROXML_ELM_NODE | ROXML_FILE);
99 
100  return roxml_load(current_node, file, NULL);
101 }
#define ROXML_FILE
#define ROXML_INVALID_DOC
Definition: roxml.h:195
node_t structure
Definition: roxml_types.h:133
ROXML_INT int roxml_parse_line(roxml_parser_item_t *parser, char *line, int len, void *ctx)
line parsing function
Definition: roxml_parser.c:149
#define ROXML_API
Definition: roxml.h:24
#define ROXML_BULK_READ
Definition: roxml_defines.h:76
ROXML_INT int roxml_read_file(int pos, int size, char *buffer, node_t *node)
read xml doc function
Definition: roxml_file.c:18
Parsing engine.
void * src
Definition: roxml_types.h:138
ROXML_INT int roxml_parse_file(roxml_load_ctx_t *context, roxml_parser_item_t *parser, FILE *file)
generic load function
Definition: roxml_file.c:33
ROXML_API node_t * roxml_load_doc(char *filename)
load function for files
Definition: roxml_file.c:90
internal header required by all libroxml sources
XML parsing core module.
xml parsing context
Definition: roxml_types.h:158
the parser item struct
#define ROXML_ELM_NODE
Definition: roxml.h:70
ROXML_INT node_t * roxml_create_node(int pos, void *src, int type)
internal function
Definition: roxml_core.c:46
#define ROXML_BASE_LEN
Definition: roxml_defines.h:91
ROXML_API node_t * roxml_load_fd(int fd)
load function for file descriptors
Definition: roxml_file.c:73
ROXML_INT node_t * roxml_load(node_t *current_node, FILE *file, char *buffer)
generic load function
Definition: roxml_core.c:201
ROXML_INT void roxml_close_file(node_t *root)
unload function
Definition: roxml_file.c:28