libyang 3.1.0
libyang is YANG data modelling language parser and toolkit written (and providing API) in C.
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xpath1.0.c
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1
15#define _GNU_SOURCE
16
17#include "plugins_types.h"
18
19#include <assert.h>
20#include <stdint.h>
21#include <stdlib.h>
22#include <string.h>
23
24#include "libyang.h"
25
26#include "compat.h"
27#include "ly_common.h"
28#include "xml.h"
29#include "xpath.h"
30
40LIBYANG_API_DEF LY_ERR
41lyplg_type_xpath10_print_token(const char *token, uint16_t tok_len, ly_bool is_nametest, const struct lys_module **context_mod,
42 const struct ly_ctx *resolve_ctx, LY_VALUE_FORMAT resolve_format, const void *resolve_prefix_data,
43 LY_VALUE_FORMAT get_format, void *get_prefix_data, char **token_p, struct ly_err_item **err)
44{
45 LY_ERR ret = LY_SUCCESS;
46 const char *str_begin, *str_next, *prefix;
47 ly_bool is_prefix, has_prefix = 0;
48 char *str = NULL;
49 void *mem;
50 uint32_t len, str_len = 0, pref_len;
51 const struct lys_module *mod;
52
53 str_begin = token;
54
55 while (!(ret = ly_value_prefix_next(str_begin, token + tok_len, &len, &is_prefix, &str_next)) && len) {
56 if (!is_prefix) {
57 if (!has_prefix && is_nametest && (get_format == LY_VALUE_XML) && *context_mod) {
58 /* get the prefix */
59 prefix = lyplg_type_get_prefix(*context_mod, get_format, get_prefix_data);
60 assert(prefix);
61
62 /* append the nametest and prefix */
63 mem = realloc(str, str_len + strlen(prefix) + 1 + len + 1);
64 LY_CHECK_ERR_GOTO(!mem, ret = ly_err_new(err, LY_EMEM, LYVE_DATA, NULL, NULL, "No memory."), cleanup);
65 str = mem;
66 str_len += sprintf(str + str_len, "%s:%.*s", prefix, (int)len, str_begin);
67 } else {
68 /* just append the string, we may get the first expression node without a prefix but since this
69 * is not strictly forbidden, allow it */
70 mem = realloc(str, str_len + len + 1);
71 LY_CHECK_ERR_GOTO(!mem, ret = ly_err_new(err, LY_EMEM, LYVE_DATA, NULL, NULL, "No memory."), cleanup);
72 str = mem;
73 str_len += sprintf(str + str_len, "%.*s", (int)len, str_begin);
74 }
75 } else {
76 /* remember there was a prefix found */
77 has_prefix = 1;
78
79 /* resolve the module in the original format */
80 mod = lyplg_type_identity_module(resolve_ctx, NULL, str_begin, len, resolve_format, resolve_prefix_data);
81 if (!mod && is_nametest) {
82 ret = ly_err_new(err, LY_EVALID, LYVE_DATA, NULL, NULL, "Failed to resolve prefix \"%.*s\".",
83 (int)len, str_begin);
84 goto cleanup;
85 }
86
87 if (is_nametest && ((get_format == LY_VALUE_JSON) || (get_format == LY_VALUE_LYB)) && (*context_mod == mod)) {
88 /* inherit the prefix and do not print it again */
89 } else {
90 if (mod) {
91 /* get the prefix in the target format */
92 prefix = lyplg_type_get_prefix(mod, get_format, get_prefix_data);
93 assert(prefix);
94 pref_len = strlen(prefix);
95 } else {
96 /* invalid prefix, just copy it */
97 prefix = str_begin;
98 pref_len = len;
99 }
100
101 /* append the prefix */
102 mem = realloc(str, str_len + pref_len + 2);
103 LY_CHECK_ERR_GOTO(!mem, ret = ly_err_new(err, LY_EMEM, LYVE_DATA, NULL, NULL, "No memory."), cleanup);
104 str = mem;
105 str_len += sprintf(str + str_len, "%.*s:", (int)pref_len, prefix);
106 }
107
108 if (is_nametest) {
109 /* update context module */
110 *context_mod = mod;
111 }
112 }
113
114 str_begin = str_next;
115 }
116
117cleanup:
118 if (ret) {
119 free(str);
120 } else {
121 *token_p = str;
122 }
123 return ret;
124}
125
141static LY_ERR
142xpath10_print_subexpr_r(uint16_t *cur_idx, enum lyxp_token end_tok, const struct lys_module *context_mod,
143 const struct lyd_value_xpath10 *xp_val, LY_VALUE_FORMAT format, void *prefix_data, char **str_value,
144 uint32_t *str_len, struct ly_err_item **err)
145{
146 enum lyxp_token cur_tok, sub_end_tok;
147 char *str_tok;
148 void *mem;
149 const char *cur_exp_ptr;
150 ly_bool is_nt;
151 const struct lys_module *orig_context_mod = context_mod;
152
153 while (*cur_idx < xp_val->exp->used) {
154 cur_tok = xp_val->exp->tokens[*cur_idx];
155 cur_exp_ptr = xp_val->exp->expr + xp_val->exp->tok_pos[*cur_idx];
156
157 if ((cur_tok == LYXP_TOKEN_NAMETEST) || (cur_tok == LYXP_TOKEN_LITERAL)) {
158 /* tokens that may include prefixes, get them in the target format */
159 is_nt = (cur_tok == LYXP_TOKEN_NAMETEST) ? 1 : 0;
160 LY_CHECK_RET(lyplg_type_xpath10_print_token(cur_exp_ptr, xp_val->exp->tok_len[*cur_idx], is_nt, &context_mod,
161 xp_val->ctx, xp_val->format, xp_val->prefix_data, format, prefix_data, &str_tok, err));
162
163 /* append the converted token */
164 mem = realloc(*str_value, *str_len + strlen(str_tok) + 1);
165 LY_CHECK_ERR_GOTO(!mem, free(str_tok), error_mem);
166 *str_value = mem;
167 *str_len += sprintf(*str_value + *str_len, "%s", str_tok);
168 free(str_tok);
169
170 /* token processed */
171 ++(*cur_idx);
172 } else {
173 if ((cur_tok == LYXP_TOKEN_OPER_LOG) || (cur_tok == LYXP_TOKEN_OPER_UNI) || (cur_tok == LYXP_TOKEN_OPER_MATH)) {
174 /* copy the token with spaces around */
175 mem = realloc(*str_value, *str_len + 1 + xp_val->exp->tok_len[*cur_idx] + 2);
176 LY_CHECK_GOTO(!mem, error_mem);
177 *str_value = mem;
178 *str_len += sprintf(*str_value + *str_len, " %.*s ", (int)xp_val->exp->tok_len[*cur_idx], cur_exp_ptr);
179
180 /* reset context mod */
181 context_mod = orig_context_mod;
182 } else {
183 /* just copy the token */
184 mem = realloc(*str_value, *str_len + xp_val->exp->tok_len[*cur_idx] + 1);
185 LY_CHECK_GOTO(!mem, error_mem);
186 *str_value = mem;
187 *str_len += sprintf(*str_value + *str_len, "%.*s", (int)xp_val->exp->tok_len[*cur_idx], cur_exp_ptr);
188 }
189
190 /* token processed but keep it in cur_tok */
191 ++(*cur_idx);
192
193 if (end_tok && (cur_tok == end_tok)) {
194 /* end token found */
195 break;
196 } else if ((cur_tok == LYXP_TOKEN_BRACK1) || (cur_tok == LYXP_TOKEN_PAR1)) {
197 sub_end_tok = (cur_tok == LYXP_TOKEN_BRACK1) ? LYXP_TOKEN_BRACK2 : LYXP_TOKEN_PAR2;
198
199 /* parse the subexpression separately, use the current context mod */
200 LY_CHECK_RET(xpath10_print_subexpr_r(cur_idx, sub_end_tok, context_mod, xp_val, format, prefix_data,
201 str_value, str_len, err));
202 }
203 }
204 }
205
206 return LY_SUCCESS;
207
208error_mem:
209 return ly_err_new(err, LY_EMEM, LYVE_DATA, NULL, NULL, "No memory.");
210}
211
212LIBYANG_API_DEF LY_ERR
213lyplg_type_print_xpath10_value(const struct lyd_value_xpath10 *xp_val, LY_VALUE_FORMAT format, void *prefix_data,
214 char **str_value, struct ly_err_item **err)
215{
216 LY_ERR ret = LY_SUCCESS;
217 uint16_t expr_idx = 0;
218 uint32_t str_len = 0;
219 const struct lys_module *local_mod = NULL;
220 struct ly_set *mods;
221
222 *str_value = NULL;
223 *err = NULL;
224
225 if (format == LY_VALUE_XML) {
226 /* null the local module so that all the prefixes are printed */
227 mods = prefix_data;
228 local_mod = mods->objs[0];
229 mods->objs[0] = NULL;
230 }
231
232 /* recursively print the expression */
233 ret = xpath10_print_subexpr_r(&expr_idx, 0, NULL, xp_val, format, prefix_data, str_value, &str_len, err);
234
235 if (local_mod) {
236 mods->objs[0] = (void *)local_mod;
237 }
238 if (ret) {
239 free(*str_value);
240 *str_value = NULL;
241 }
242 return ret;
243}
244
245LIBYANG_API_DEF LY_ERR
246lyplg_type_store_xpath10(const struct ly_ctx *ctx, const struct lysc_type *type, const void *value, size_t value_len,
247 uint32_t options, LY_VALUE_FORMAT format, void *prefix_data, uint32_t hints, const struct lysc_node *ctx_node,
248 struct lyd_value *storage, struct lys_glob_unres *UNUSED(unres), struct ly_err_item **err)
249{
250 LY_ERR ret = LY_SUCCESS;
251 struct lysc_type_str *type_str = (struct lysc_type_str *)type;
252 struct lyd_value_xpath10 *val;
253 char *canon;
254
255 /* init storage */
256 memset(storage, 0, sizeof *storage);
257 LYPLG_TYPE_VAL_INLINE_PREPARE(storage, val);
258 LY_CHECK_ERR_GOTO(!val, ret = LY_EMEM, cleanup);
259 storage->realtype = type;
260
261 /* check hints */
262 ret = lyplg_type_check_hints(hints, value, value_len, type->basetype, NULL, err);
263 LY_CHECK_GOTO(ret, cleanup);
264
265 /* length restriction of the string */
266 if (type_str->length) {
267 /* value_len is in bytes, but we need number of characters here */
268 ret = lyplg_type_validate_range(LY_TYPE_STRING, type_str->length, ly_utf8len(value, value_len), value, value_len, err);
269 LY_CHECK_GOTO(ret, cleanup);
270 }
271
272 /* pattern restrictions */
273 ret = lyplg_type_validate_patterns(type_str->patterns, value, value_len, err);
274 LY_CHECK_GOTO(ret, cleanup);
275
276 /* parse */
277 ret = lyxp_expr_parse(ctx, value_len ? value : "", value_len, 1, &val->exp);
278 LY_CHECK_GOTO(ret, cleanup);
279 val->ctx = ctx;
280
281 if (ctx_node && !strcmp(ctx_node->name, "parent-reference") && !strcmp(ctx_node->module->name, "ietf-yang-schema-mount")) {
282 /* special case, this type uses prefix-namespace mapping provided directly in data, keep empty for now */
284 ret = ly_set_new((struct ly_set **)&val->prefix_data);
285 LY_CHECK_GOTO(ret, cleanup);
286 } else {
287 /* store format-specific data and context for later prefix resolution */
288 ret = lyplg_type_prefix_data_new(ctx, value, value_len, format, prefix_data, &val->format, &val->prefix_data);
289 LY_CHECK_GOTO(ret, cleanup);
290 }
291
292 switch (format) {
293 case LY_VALUE_CANON:
294 case LY_VALUE_JSON:
295 case LY_VALUE_LYB:
296 case LY_VALUE_STR_NS:
297 /* store canonical value */
298 if (options & LYPLG_TYPE_STORE_DYNAMIC) {
299 ret = lydict_insert_zc(ctx, (char *)value, &storage->_canonical);
300 options &= ~LYPLG_TYPE_STORE_DYNAMIC;
301 LY_CHECK_GOTO(ret, cleanup);
302 } else {
303 ret = lydict_insert(ctx, value_len ? value : "", value_len, &storage->_canonical);
304 LY_CHECK_GOTO(ret, cleanup);
305 }
306 break;
307 case LY_VALUE_SCHEMA:
309 case LY_VALUE_XML:
310 /* JSON format with prefix is the canonical one */
311 ret = lyplg_type_print_xpath10_value(val, LY_VALUE_JSON, NULL, &canon, err);
312 LY_CHECK_GOTO(ret, cleanup);
313
314 ret = lydict_insert_zc(ctx, canon, &storage->_canonical);
315 LY_CHECK_GOTO(ret, cleanup);
316 break;
317 }
318
319cleanup:
320 if (options & LYPLG_TYPE_STORE_DYNAMIC) {
321 free((void *)value);
322 }
323
324 if (ret) {
326 } else if (val->format == LY_VALUE_STR_NS) {
327 /* needs validation */
328 return LY_EINCOMPLETE;
329 }
330 return ret;
331}
332
341static LY_ERR
342xpath10_add_ns(struct ly_set *set, const char *pref, const char *uri)
343{
344 LY_ERR rc = LY_SUCCESS;
345 struct lyxml_ns *ns = NULL;
346
347 /* create new ns */
348 ns = calloc(1, sizeof *ns);
349 if (!ns) {
350 rc = LY_EMEM;
351 goto cleanup;
352 }
353 ns->prefix = strdup(pref);
354 ns->uri = strdup(uri);
355 if (!ns->prefix || !ns->uri) {
356 rc = LY_EMEM;
357 goto cleanup;
358 }
359 ns->depth = 1;
360
361 /* add into the XML namespace set */
362 if ((rc = ly_set_add(set, ns, 1, NULL))) {
363 goto cleanup;
364 }
365 ns = NULL;
366
367cleanup:
368 if (ns) {
369 free(ns->prefix);
370 free(ns->uri);
371 free(ns);
372 }
373 return rc;
374}
375
379static LY_ERR
380lyplg_type_validate_xpath10(const struct ly_ctx *UNUSED(ctx), const struct lysc_type *UNUSED(type),
381 const struct lyd_node *ctx_node, const struct lyd_node *UNUSED(tree), struct lyd_value *storage,
382 struct ly_err_item **err)
383{
384 LY_ERR ret = LY_SUCCESS;
385 struct lyd_value_xpath10 *val;
386 struct ly_set *set = NULL;
387 uint32_t i;
388 const char *pref, *uri;
389 const struct ly_err_item *eitem;
390
391 *err = NULL;
392 LYD_VALUE_GET(storage, val);
393
394 if (val->format != LY_VALUE_STR_NS) {
395 /* nothing to validate */
396 return LY_SUCCESS;
397 }
398
399 /* the XML namespace set must exist */
400 assert(val->prefix_data);
401
402 /* special handling of this particular node */
403 assert(!strcmp(LYD_NAME(ctx_node), "parent-reference") &&
404 !strcmp(ctx_node->schema->module->name, "ietf-yang-schema-mount"));
405
406 /* get all the prefix mappings */
407 if ((ret = lyd_find_xpath(ctx_node, "../../../namespace", &set))) {
408 goto cleanup;
409 }
410
411 for (i = 0; i < set->count; ++i) {
412 assert(!strcmp(LYD_NAME(lyd_child(set->dnodes[i])), "prefix"));
413 pref = lyd_get_value(lyd_child(set->dnodes[i]));
414
415 if (!lyd_child(set->dnodes[i])->next) {
416 /* missing URI - invalid mapping, skip */
417 continue;
418 }
419 assert(!strcmp(LYD_NAME(lyd_child(set->dnodes[i])->next), "uri"));
420 uri = lyd_get_value(lyd_child(set->dnodes[i])->next);
421
422 /* new NS */
423 if ((ret = xpath10_add_ns(val->prefix_data, pref, uri))) {
424 goto cleanup;
425 }
426 }
427
428cleanup:
429 ly_set_free(set, NULL);
430 if (ret == LY_EMEM) {
431 ly_err_new(err, LY_EMEM, LYVE_DATA, NULL, NULL, LY_EMEM_MSG);
432 } else if (ret) {
433 eitem = ly_err_last(LYD_CTX(ctx_node));
434 ly_err_new(err, ret, LYVE_DATA, eitem->data_path, NULL, "%s", eitem->msg);
435 }
436 return ret;
437}
438
439LIBYANG_API_DEF const void *
440lyplg_type_print_xpath10(const struct ly_ctx *ctx, const struct lyd_value *value, LY_VALUE_FORMAT format,
441 void *prefix_data, ly_bool *dynamic, size_t *value_len)
442{
443 struct lyd_value_xpath10 *val;
444 char *ret;
445 struct ly_err_item *err = NULL;
446
447 LYD_VALUE_GET(value, val);
448
449 /* LY_VALUE_STR_NS should never be transformed */
450 if ((val->format == LY_VALUE_STR_NS) || (format == LY_VALUE_CANON) || (format == LY_VALUE_JSON) ||
451 (format == LY_VALUE_LYB)) {
452 /* canonical */
453 if (dynamic) {
454 *dynamic = 0;
455 }
456 if (value_len) {
457 *value_len = strlen(value->_canonical);
458 }
459 return value->_canonical;
460 }
461
462 /* print in the specific format */
463 if (lyplg_type_print_xpath10_value(val, format, prefix_data, &ret, &err)) {
464 if (err) {
465 ly_err_print(ctx, err);
467 }
468 return NULL;
469 }
470
471 *dynamic = 1;
472 if (value_len) {
473 *value_len = strlen(ret);
474 }
475 return ret;
476}
477
478LIBYANG_API_DEF LY_ERR
479lyplg_type_dup_xpath10(const struct ly_ctx *ctx, const struct lyd_value *original, struct lyd_value *dup)
480{
481 LY_ERR ret = LY_SUCCESS;
482 struct lyd_value_xpath10 *orig_val, *dup_val;
483
484 /* init dup value */
485 memset(dup, 0, sizeof *dup);
486 dup->realtype = original->realtype;
487
488 ret = lydict_insert(ctx, original->_canonical, 0, &dup->_canonical);
489 LY_CHECK_GOTO(ret, cleanup);
490
491 LYPLG_TYPE_VAL_INLINE_PREPARE(dup, dup_val);
492 LY_CHECK_ERR_GOTO(!dup_val, LOGMEM(ctx); ret = LY_EMEM, cleanup);
493 dup_val->ctx = ctx;
494
495 LYD_VALUE_GET(original, orig_val);
496 ret = lyxp_expr_dup(ctx, orig_val->exp, 0, 0, &dup_val->exp);
497 LY_CHECK_GOTO(ret, cleanup);
498
499 ret = lyplg_type_prefix_data_dup(ctx, orig_val->format, orig_val->prefix_data, &dup_val->prefix_data);
500 LY_CHECK_GOTO(ret, cleanup);
501 dup_val->format = orig_val->format;
502
503cleanup:
504 if (ret) {
506 }
507 return ret;
508}
509
510LIBYANG_API_DEF void
511lyplg_type_free_xpath10(const struct ly_ctx *ctx, struct lyd_value *value)
512{
513 struct lyd_value_xpath10 *val;
514
516 value->_canonical = NULL;
517 LYD_VALUE_GET(value, val);
518 if (val) {
519 lyxp_expr_free(ctx, val->exp);
521
523 }
524}
525
534 {
535 .module = "ietf-yang-types",
536 .revision = "2013-07-15",
537 .name = "xpath1.0",
538
539 .plugin.id = "libyang 2 - xpath1.0, version 1",
540 .plugin.store = lyplg_type_store_xpath10,
541 .plugin.validate = lyplg_type_validate_xpath10,
542 .plugin.compare = lyplg_type_compare_simple,
543 .plugin.sort = lyplg_type_sort_simple,
544 .plugin.print = lyplg_type_print_xpath10,
545 .plugin.duplicate = lyplg_type_dup_xpath10,
546 .plugin.free = lyplg_type_free_xpath10,
547 .plugin.lyb_data_len = -1,
548 },
549 {0}
550};
libyang context handler.
#define LYD_CTX(node)
Macro to get context from a data tree node.
Definition tree_data.h:527
LIBYANG_API_DECL LY_ERR lydict_insert(const struct ly_ctx *ctx, const char *value, size_t len, const char **str_p)
Insert string into dictionary. If the string is already present, only a reference counter is incremen...
LIBYANG_API_DECL LY_ERR lydict_remove(const struct ly_ctx *ctx, const char *value)
Remove specified string from the dictionary. It decrement reference counter for the string and if it ...
LIBYANG_API_DECL LY_ERR lydict_insert_zc(const struct ly_ctx *ctx, char *value, const char **str_p)
Insert string into dictionary - zerocopy version. If the string is already present,...
LY_ERR err
Definition log.h:284
char * data_path
Definition log.h:287
char * msg
Definition log.h:286
LIBYANG_API_DECL const struct ly_err_item * ly_err_last(const struct ly_ctx *ctx)
Get the latest (thread, context-specific) generated error structure.
LIBYANG_API_DECL void ly_err_print(const struct ly_ctx *ctx, const struct ly_err_item *eitem)
Print the error structure as if just generated.
LY_ERR
libyang's error codes returned by the libyang functions.
Definition log.h:237
@ LYVE_DATA
Definition log.h:274
@ LY_EMEM
Definition log.h:239
@ LY_EVALID
Definition log.h:245
@ LY_SUCCESS
Definition log.h:238
@ LY_EINCOMPLETE
Definition log.h:247
Libyang full error structure.
Definition log.h:282
uint32_t count
Definition set.h:49
LIBYANG_API_DECL void ly_set_free(struct ly_set *set, void(*destructor)(void *obj))
Free the ly_set data. If the destructor is not provided, it frees only the set structure content,...
LIBYANG_API_DECL LY_ERR ly_set_add(struct ly_set *set, const void *object, ly_bool list, uint32_t *index_p)
Add an object into the set.
LIBYANG_API_DECL LY_ERR ly_set_new(struct ly_set **set_p)
Create and initiate new ly_set structure.
Structure to hold a set of (not necessary somehow connected) objects. Usually used for lyd_node,...
Definition set.h:47
const char *const char * revision
#define LYPLG_TYPE_VAL_INLINE_PREPARE(storage, type_val)
Prepare value memory for storing a specific type value, may be allocated dynamically.
LIBYANG_API_DECL LY_ERR lyplg_type_validate_patterns(struct lysc_pattern **patterns, const char *str, size_t str_len, struct ly_err_item **err)
Data type validator for pattern-restricted string values.
LIBYANG_API_DEF LY_ERR lyplg_type_xpath10_print_token(const char *token, uint16_t tok_len, ly_bool is_nametest, const struct lys_module **context_mod, const struct ly_ctx *resolve_ctx, LY_VALUE_FORMAT resolve_format, const void *resolve_prefix_data, LY_VALUE_FORMAT get_format, void *get_prefix_data, char **token_p, struct ly_err_item **err)
Print xpath1.0 token in the specific format.
Definition xpath1.0.c:41
LIBYANG_API_DEF LY_ERR lyplg_type_print_xpath10_value(const struct lyd_value_xpath10 *xp_val, LY_VALUE_FORMAT format, void *prefix_data, char **str_value, struct ly_err_item **err)
Print xpath1.0 value in the specific format.
Definition xpath1.0.c:213
LIBYANG_API_DECL LY_ERR LIBYANG_API_DECL void ly_err_free(void *ptr)
Destructor for the error records created with ly_err_new().
#define LYPLG_TYPE_VAL_INLINE_DESTROY(type_val)
Destroy a prepared value.
LIBYANG_API_DECL LY_ERR lyplg_type_validate_range(LY_DATA_TYPE basetype, struct lysc_range *range, int64_t value, const char *strval, size_t strval_len, struct ly_err_item **err)
Data type validator for a range/length-restricted values.
LIBYANG_API_DECL const char * lyplg_type_get_prefix(const struct lys_module *mod, LY_VALUE_FORMAT format, void *prefix_data)
Get format-specific prefix for a module.
LIBYANG_API_DECL LY_ERR lyplg_type_check_hints(uint32_t hints, const char *value, size_t value_len, LY_DATA_TYPE type, int *base, struct ly_err_item **err)
Check that the type is suitable for the parser's hints (if any) in the specified format.
LIBYANG_API_DECL LY_ERR ly_err_new(struct ly_err_item **err, LY_ERR ecode, LY_VECODE vecode, char *data_path, char *apptag, const char *err_format,...) _FORMAT_PRINTF(6
Create and fill error structure.
LIBYANG_API_DECL LY_ERR lyplg_type_prefix_data_new(const struct ly_ctx *ctx, const void *value, size_t value_len, LY_VALUE_FORMAT format, const void *prefix_data, LY_VALUE_FORMAT *format_p, void **prefix_data_p)
Store used prefixes in a string into an internal libyang structure used in lyd_value.
LIBYANG_API_DECL LY_ERR lyplg_type_prefix_data_dup(const struct ly_ctx *ctx, LY_VALUE_FORMAT format, const void *orig, void **dup)
Duplicate prefix data.
LIBYANG_API_DECL void lyplg_type_prefix_data_free(LY_VALUE_FORMAT format, void *prefix_data)
Free internal prefix data.
LIBYANG_API_DECL const struct lys_module * lyplg_type_identity_module(const struct ly_ctx *ctx, const struct lysc_node *ctx_node, const char *prefix, size_t prefix_len, LY_VALUE_FORMAT format, const void *prefix_data)
Get the corresponding module for the identity value.
LIBYANG_API_DEF int lyplg_type_sort_simple(const struct ly_ctx *ctx, const struct lyd_value *val1, const struct lyd_value *val2)
Implementation of lyplg_type_sort_clb for a generic simple type.
LIBYANG_API_DECL LY_ERR lyplg_type_compare_simple(const struct ly_ctx *ctx, const struct lyd_value *val1, const struct lyd_value *val2)
Implementation of lyplg_type_compare_clb for a generic simple type.
LIBYANG_API_DEF LY_ERR lyplg_type_dup_xpath10(const struct ly_ctx *ctx, const struct lyd_value *original, struct lyd_value *dup)
Implementation of lyplg_type_dup_clb for the ietf-yang-types xpath1.0 type.
Definition xpath1.0.c:479
LIBYANG_API_DEF void lyplg_type_free_xpath10(const struct ly_ctx *ctx, struct lyd_value *value)
Implementation of lyplg_type_free_clb for the ietf-yang-types xpath1.0 type.
Definition xpath1.0.c:511
LIBYANG_API_DEF const void * lyplg_type_print_xpath10(const struct ly_ctx *ctx, const struct lyd_value *value, LY_VALUE_FORMAT format, void *prefix_data, ly_bool *dynamic, size_t *value_len)
Implementation of lyplg_type_print_clb for the ietf-yang-types xpath1.0 type.
Definition xpath1.0.c:440
#define LYPLG_TYPE_STORE_DYNAMIC
LY_DATA_TYPE basetype
struct lysc_pattern ** patterns
const char * name
struct lysc_range * length
const char * prefix
Available YANG schema tree structures representing YANG module.
Compiled YANG data node.
LY_VALUE_FORMAT
All kinds of supported value formats and prefix mappings to modules.
Definition tree.h:234
@ LY_TYPE_STRING
Definition tree.h:209
@ LY_VALUE_JSON
Definition tree.h:239
@ LY_VALUE_SCHEMA
Definition tree.h:236
@ LY_VALUE_CANON
Definition tree.h:235
@ LY_VALUE_XML
Definition tree.h:238
@ LY_VALUE_STR_NS
Definition tree.h:241
@ LY_VALUE_SCHEMA_RESOLVED
Definition tree.h:237
@ LY_VALUE_LYB
Definition tree.h:240
The main libyang public header.
uint8_t ly_bool
Type to indicate boolean value.
Definition log.h:35
API for (user) types plugins.
LIBYANG_API_DECL LY_ERR lyd_find_xpath(const struct lyd_node *ctx_node, const char *xpath, struct ly_set **set)
Search in the given data for instances of nodes matching the provided XPath.
const struct lysc_type * realtype
Definition tree_data.h:575
const struct lysc_node * schema
Definition tree_data.h:805
struct lyxp_expr * exp
Definition tree_data.h:717
#define LYD_NAME(node)
Get the name (associated with) of a data node. Works for opaque nodes as well.
Definition tree_data.h:925
LY_VALUE_FORMAT format
Definition tree_data.h:720
const struct ly_ctx * ctx
Definition tree_data.h:718
#define LYD_VALUE_GET(value, type_val)
Get the value in format specific to the type.
Definition tree_data.h:614
const char * _canonical
Definition tree_data.h:572
Generic structure for a data node.
Definition tree_data.h:799
YANG data representation.
Definition tree_data.h:571
Special lyd_value structure for ietf-yang-types xpath1.0 values.
Definition tree_data.h:716
#define LOGMEM(CTX)
Definition tree_edit.h:22
LIBYANG_API_DEF LY_ERR lyplg_type_store_xpath10(const struct ly_ctx *ctx, const struct lysc_type *type, const void *value, size_t value_len, uint32_t options, LY_VALUE_FORMAT format, void *prefix_data, uint32_t hints, const struct lysc_node *ctx_node, struct lyd_value *storage, struct lys_glob_unres *UNUSED(unres), struct ly_err_item **err)
Definition xpath1.0.c:246
const struct lyplg_type_record plugins_xpath10[]
Plugin information for xpath1.0 type implementation.
Definition xpath1.0.c:533