From 07e2208a51d7bc64d4639c6eb56a4c33d8d87d7d Mon Sep 17 00:00:00 2001
From: Jon Bergli Heier <snakebite@jvnv.net>
Date: Fri, 21 Aug 2009 02:36:28 +0200
Subject: Added structs and functions for nick grouping.

---
 Makefile |  2 +-
 main.c   |  3 +++
 nick.c   | 85 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 nick.h   | 20 +++++++++++++++
 4 files changed, 109 insertions(+), 1 deletion(-)
 create mode 100644 nick.c
 create mode 100644 nick.h

diff --git a/Makefile b/Makefile
index 34f989a..193627d 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ CFLAGS += $(shell xml2-config --cflags)
 LDFLAGS += $(shell pkg-config --libs libconfig)
 LDFLAGS += $(shell pcre-config --libs)
 LDFLAGS += $(shell xml2-config --libs)
-OBJECTS = main.o config.o regexset.o channel.o user.o word.o sdbm.o export_xml.o
+OBJECTS = main.o config.o regexset.o channel.o user.o word.o sdbm.o export_xml.o nick.o
 TARGET = ircstats
 
 all: $(TARGET)
diff --git a/main.c b/main.c
index 1ccca8a..69435ac 100644
--- a/main.c
+++ b/main.c
@@ -9,6 +9,7 @@
 #include "user.h"
 #include "word.h"
 #include "export_xml.h"
+#include "nick.h"
 
 #define NICK_BUFFER_SIZE 0x100
 #define TEXT_BUFFER_SIZE 0x400
@@ -26,6 +27,7 @@ int main(int argc, char **argv) {
 		channel_free();
 		return 1;
 	}
+	nick_init();
 
 	/* Parsing stuff goes here. */
 	for(int chan_i = 0; chan_i < channel_get_count(); chan_i++) {
@@ -115,6 +117,7 @@ int main(int argc, char **argv) {
 		word_free();
 	}
 
+	nick_free();
 	cfg_free();
 	channel_free();
 	rs_free();
diff --git a/nick.c b/nick.c
new file mode 100644
index 0000000..f1d2c38
--- /dev/null
+++ b/nick.c
@@ -0,0 +1,85 @@
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <stdio.h>
+
+#include "nick.h"
+
+struct nick_t *nicks;
+
+void nick_init() {
+	nicks = NULL;
+}
+
+int nick_add(char *name) {
+	struct nick_t *nick = malloc(sizeof(struct nick_t));
+	if(!nick) {
+		char *error = strerror(errno);
+		fprintf(stderr, "Could not allocate memory for nick: %s\n", error);
+		return 0;
+	}
+
+	if(nicks) {
+		struct nick_t *n = nicks;
+		while(n->next) n = n->next;
+		n->next = nick;
+	} else
+		nicks = nick;
+
+	nick->name = strdup(name);
+	nick->regexes = NULL;
+	nick->next = NULL;
+
+	return 1;
+}
+
+int nick_regex_add(struct nick_t *nick, char *re_s) {
+	struct nick_regex_t *nre = malloc(sizeof(struct nick_regex_t));
+	if(!nre) {
+		char *error = strerror(errno);
+		fprintf(stderr, "Could not allocate memory for nick regex: %s\n", error);
+		return 0;
+	}
+
+	const char *error;
+	int erroffset;
+	nre->re = pcre_compile(re_s, 0, &error, &erroffset, NULL);
+	if(!nre->re) {
+		/* Copied from re_error in regexset.c */
+		fprintf(stderr, "Nick RE failed to compile: %s\n", error);
+		fprintf(stderr, "%s\n", re_s);
+		for(int i = 0; i < erroffset; i++) fprintf(stderr, " ");
+		fprintf(stderr, "^\n");
+		free(nre);
+		return 0;
+	}
+
+	nre->next = NULL;
+
+	if(nick->regexes) {
+		struct nick_regex_t *n = nick->regexes;
+		while(n->next) n = n->next;
+		n->next = nre;
+	} else
+		nick->regexes = nre;
+
+	return 1;
+}
+
+void nick_free() {
+	struct nick_t *nick = nicks;
+	while(nick) {
+		free(nick->name);
+		struct nick_regex_t *re = nick->regexes;
+		while(re) {
+			pcre_free(re->re);
+			struct nick_regex_t *next = re->next;
+			free(re);
+			re = next;
+		}
+		struct nick_t *next = nick->next;
+		free(nick);
+		nick = next;
+	}
+	free(nicks);
+}
diff --git a/nick.h b/nick.h
new file mode 100644
index 0000000..8cac6d8
--- /dev/null
+++ b/nick.h
@@ -0,0 +1,20 @@
+#ifndef _NICK_H_
+#define _NICK_H_
+
+#include <pcre.h>
+
+struct nick_t {
+	char *name;
+	struct nick_regex_t {
+		pcre *re;
+		struct nick_regex_t *next;
+	} *regexes;
+	struct nick_t *next;
+};
+
+void nick_init();
+int nick_add(char *name);
+int nick_regex_add(struct nick_t *nick, char *re_s);
+void nick_free();
+
+#endif
-- 
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