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17ab9beb71
Author | SHA1 | Date |
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Danila Fedorin | 17ab9beb71 | |
Danila Fedorin | eecfe653e3 | |
Danila Fedorin | e849cc8ba2 |
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@ -56,6 +56,11 @@ struct pattern_node_s {
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* The id of the pattern that this node belongs to.
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*/
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int pattern_id;
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/**
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* Whether to "invert" this node - inverted
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* nodes indicate "match anything but this".
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*/
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int invert;
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/**
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* The node's data that varies based on type.
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21
src/eval.c
21
src/eval.c
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@ -50,16 +50,18 @@ liblex_result _eval_config_free_state(eval_state* state) {
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liblex_result eval_config_remove(eval_config* config, const char* pattern, int pattern_id) {
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liblex_result result = LIBLEX_SUCCESS;
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ll_node** head = &(config->states.head);
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while(*head && result == LIBLEX_SUCCESS) {
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eval_state* current_state = (*head)->data;
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ll_node* head = config->states.head;
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while(head && result == LIBLEX_SUCCESS) {
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eval_state* current_state = head->data;
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if(strcmp(current_state->source, pattern) == 0 && current_state->pattern->head->pattern_id == pattern_id) {
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ll_node* to_delete = *head;
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(*head) = (*head)->next;
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ll_node* to_delete = head;
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head = head->next;
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*(to_delete->prev ? &to_delete->prev->next : &(config->states.head)) = to_delete->next;
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*(to_delete->next ? &to_delete->next->prev : &(config->states.tail)) = to_delete->prev;
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free(to_delete);
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result = _eval_config_free_state(current_state);
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} else {
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head = &((*head)->next);
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head = head->next;
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}
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}
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return result;
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@ -128,10 +130,15 @@ int _eval_node_matches(pattern_node *node, eval *eval){
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}
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int _eval_foreach_check_node(void *data, va_list args){
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int inverted_matches = 1;
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int return_code = 0;
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pattern_node* node = data;
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eval* evl = va_arg(args, eval*);
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if(_eval_node_matches(node, evl)){
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while(node && node->invert && inverted_matches) {
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inverted_matches &= !_eval_node_matches(node, evl);
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node = _eval_pattern_node_get_next(node);
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}
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if(inverted_matches && _eval_node_matches(node, evl)){
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return_code = _eval_pairmap_add_node(evl->set_next, _eval_pattern_node_get_next(node)) == LIBLEX_SUCCESS ? 0 : EVAL_FOREACH_MALLOC;
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if(return_code == 0){
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evl->matched++;
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@ -9,6 +9,7 @@ void _pattern_node_clear(pattern_node* to_clear){
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to_clear->type = PNODE_CLEAR;
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to_clear->id = -1;
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to_clear->pattern_id = -1;
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to_clear->invert = 0;
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memset(&(to_clear->data_u), 0, sizeof(to_clear->data_u));
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}
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@ -195,6 +196,57 @@ liblex_result _pattern_read_value(char* read_into, const char* string, int* inde
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return result;
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}
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liblex_result _pattern_build_inverted_or(pattern_chain** into, int* ids, int pattern_id, const char* string, int* index) {
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pattern_node* new_node = NULL;
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liblex_result result = LIBLEX_SUCCESS;
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result = _pattern_chain_create(into, NULL, NULL);
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if(result == LIBLEX_SUCCESS){
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(*index)++;
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if(string[*index]) (*index)++;
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}
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while(string[*index] && string[*index] != ']' && result == LIBDS_SUCCESS) {
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char from = '\0';
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char to = '\0';
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result = _pattern_read_value(&from, string, index);
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if(result == LIBLEX_SUCCESS && string[*index] == '-') {
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(*index)++;
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result = _pattern_read_value(&to, string, index);
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}
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if(result == LIBLEX_SUCCESS) {
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if(to) {
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result = _pattern_node_create_range(&new_node, (*ids)++, pattern_id, from, to, NULL);
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} else {
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result = _pattern_node_create_value(&new_node, (*ids)++, pattern_id, from, NULL);
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}
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}
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if(result == LIBLEX_SUCCESS) {
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new_node->invert = 1;
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_pattern_chain_append_node(*into, new_node);
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}
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}
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if(result == LIBLEX_SUCCESS) {
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result = _pattern_node_create_any(&new_node, (*ids)++, pattern_id, NULL);
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if(result == LIBLEX_SUCCESS) {
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_pattern_chain_append_node(*into, new_node);
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}
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}
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if(result != LIBLEX_SUCCESS) {
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if(*into && (*into)->head) {
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_pattern_free((*into)->head, *ids);
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}
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free(*into);
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} else {
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(*index)++;
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}
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return result;
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}
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liblex_result _pattern_build_or(pattern_chain** into, int* ids, int pattern_id, const char* string, int* index) {
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pattern_node *tail_node;
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liblex_result result = LIBLEX_SUCCESS;
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@ -284,7 +336,11 @@ liblex_result _pattern_build_chain(pattern_chain** into, int* ids, int pattern_i
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result = _pattern_build_chain(&sub_chain, ids, pattern_id, string, index);
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} else if(string[*index] == '['){
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_pattern_chain_append_chain_discard(current_chain, &sub_chain);
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result = _pattern_build_or(&sub_chain, ids, pattern_id, string, index);
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if(string[(*index) + 1] == '^') {
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result = _pattern_build_inverted_or(&sub_chain, ids, pattern_id, string, index);
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} else {
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result = _pattern_build_or(&sub_chain, ids, pattern_id, string, index);
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}
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} else if(string[*index] == '?' || string[*index] == '*' || string[*index] == '+'){
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if(sub_chain != NULL && sub_chain->head){
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pattern_node* connection_node = NULL;
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