1 files changed, 94 insertions, 0 deletions
diff --git a/mcin/mcin.c b/mcin/mcin.c
new file mode 100644
index 0000000..1430415
--- /dev/null
+++ b/mcin/mcin.c
@@ -0,0 +1,94 @@
+#include "mc_regex.h"
+#include "mcin.h"
+#include "../common.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+int mcin_matcher_init(MCINMatcher *out)
+{
+	int r = 0;
+	r = regcomp(&out->regex_master, ".*\\[([0-9][0-9]:[0-9][0-9]:[0-9][0-9])\\] \\[(.*)\\/(.*)\\]: (.*)", REG_EXTENDED);
+	if(r)
+	{
+		fprintf(stderr, _("Cannot compile master regex: %d.\n"), r);
+		return r;
+	}
+	int line = 0;
+	char str[] = MC_REGEX;
+	char *token;
+	char *rest = str;
+	while ((token = strtok_r(rest, ",", &rest)))
+	{
+		int l = line++;
+		regex_t *reg = &out->regex[l];
+		r = regcomp(reg, token, REG_EXTENDED);
+		if(r)
+		{
+			fprintf(stderr, _("Cannot compile regex %s: %d.\n"), token, r);
+			return r;
+                }
+	}
+	return r;
+}
+
+void mcin_matcher_free(MCINMatcher *matcher)
+{
+	regfree(&matcher->regex_master);
+	for(int i = 0; i < MCIN_REGEX_COUNT; i ++)
+	{
+		regfree(&matcher->regex[i]);
+	}
+}
+
+char *mcin_matcher_match(MCINMatcher *matcher, const char *str)
+{
+	regmatch_t pmatch[5];
+	if(regexec(&matcher->regex_master, str, 5, pmatch, 0)) return 0;
+	char *temp_str = calloc(strlen(str) + 1, sizeof(char));
+	for(int i = 1 /* Ignore the string itself */; i < 5; i ++)
+	{
+		const regmatch_t match = pmatch[i];
+		if(match.rm_so == -1)
+		{
+			// Shouldn't happen if the string is valid.
+			free(temp_str);
+			return NULL;
+		}
+		if(i != 2 && i != 3 && i != 4) continue; // We don't care.
+		int length = match.rm_eo - match.rm_so;
+		for(int j = 0; j < length; j ++)
+		{
+			temp_str[j] = str[match.rm_so + j];
+		}
+		temp_str[length] = '\0';
+		if(i == 2) /* Tag */
+		{
+			if(strcmp(temp_str, "Server thread"))
+			{
+				free(temp_str);
+				return NULL;
+			}
+		}
+		if(i == 3) /* Level */
+		{
+			if(strcmp(temp_str, "INFO"))
+			{
+				free(temp_str);
+				return NULL;
+			}
+		}
+		if(i == 4) // Data
+			break;
+	}
+	for(int i = 0; i < MCIN_REGEX_COUNT; i ++)
+	{
+		if(!regexec(&matcher->regex[i], str, 0, NULL, 0))
+		{
+			return temp_str;
+		}
+	}
+	free(temp_str);
+	return NULL;
+}