regex_parser.c

changeset 27
95a958e3de88
child 28
72a98cbcb9f1
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/regex_parser.c	Thu Jan 26 15:55:52 2012 +0100
@@ -0,0 +1,50 @@
+/*
+ * regex_parser.c
+ *
+ *  Created on: 26.01.2012
+ *      Author: fox3049
+ */
+
+#include "regex_parser.h"
+
+regex_parser_t* new_regex_parser_t() {
+  regex_parser_t* ret = malloc(sizeof(regex_parser_t));
+  if (ret != NULL) {
+    ret->pattern_list = new_string_list_t();
+    ret->matched_lines = 0;
+    ret->pattern_match = 0;
+    ret->compiled_patterns = NULL;
+  }
+  return ret;
+}
+
+void destroy_regex_parser_t(regex_parser_t* parser) {
+  destroy_string_list_t(parser->pattern_list);
+  free(parser);
+}
+
+bool regex_parser_matching(regex_parser_t* parser) {
+  return parser->pattern_match > 0;
+}
+
+void regex_compile_all(regex_parser_t* parser) {
+  size_t pcount = parser->pattern_list->count;
+  if (pcount > 0) {
+    if (parser->compiled_patterns != NULL) {
+      free(parser->compiled_patterns);
+    }
+    parser->compiled_patterns = calloc(pcount, sizeof(regex_t));
+
+    regex_t* re = malloc(sizeof(regex_t));
+    for (int i = 0 ; i < pcount ; i++) {
+      if (regcomp(re, parser->pattern_list->items[i],
+          REG_EXTENDED|REG_NOSUB) == 0) {
+        parser->compiled_patterns[i] = re;
+      } else {
+        fprintf(stderr, "Cannot compile: %s\n",
+            (parser->pattern_list->items[i]));
+        parser->compiled_patterns[i] = NULL;
+      }
+    }
+  }
+}

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