more changes

hashtable.c

@@ -55,6 +55,10 @@ hashtable_iterator_t hashtable_next(struct hashtable * table, hashtable_iterator
 }
 
 hashtable_iterator_t hashtable_get_hash(struct hashtable * table, entry_hash_t hash) {
+	if (!table->len) {
+		return hashtable_end(table);
+	}
+
 	size_t index = hash % table->len;
 
 	if (table->data[index].hash == 0) {

main.c

@@ -126,13 +126,14 @@ char fgetc_count(FILE *file) {
 }
 
 int add_char(char ** str, char c) {
-	if (str == NULL || *str == NULL) {
+	if (str == NULL) {
 		return 0;
 	}
 
+	if (*str != NULL) {
 		int len = strlen(*str);
 
-	char *temp = realloc(*str, len + 1);
+		char *temp = realloc(*str, len + 2);
 		if (temp == NULL) {
 			errno = ENOMEM;
 			return -1;
@@ -140,27 +141,63 @@ int add_char(char ** str, char c) {
 
 		*str = temp;
 
-	(*str)[len-1] = c;
+		(*str)[len] = c;
-	(*str)[len] = 0;
+		(*str)[len+1] = 0;
 		return 0;
 	}
 
+	*str = malloc(2);
+	if (*str == NULL) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	(*str)[0] = c;
+	(*str)[1] = '\0';
+
+	return 0;
+}
+
+int macro_limiter(char c) {
+	switch(c) {
+	case '\\':
+		// next macro
+		return 1;
+	case '{':
+		// arguments
+		return 2;
+	case '[':
+		// optional arguments
+		return 3;
+	}
+
+	return 0;
+}
 
 
 void eval_macro(struct filelist * last, FILE * file) {
 	char * name = NULL;
 	strhash_t hash = 0;
-	hashtable_iterator_t macro;
+	hashtable_iterator_t macro = hashtable_end(last->macros);
 
 	char current = 0;
 
 	// read macro name
-	while(good(file) && current != '\\' && macro == hashtable_end(last->macros)) {
+	while(good(file) && !macro_limiter(current) && macro == hashtable_end(last->macros)) {
+		current = fgetc_count(file);
+
 		hash = strhash_add(hash, current);
+		add_char(&name, current);
+
 		// try to find macro in table
 		macro = hashtable_get_hash(last->macros, hash);
 	}
 
+	if (macro == hashtable_end(last->macros)) {
+		// no macro with that name found
+		printf("%d:%d:macro not found: %s\n", line, pos, name);
+	}
+
 	if (!good(file)) {
 		return;
 	}
@@ -209,7 +246,6 @@ struct option long_opts[] = {
 	{}, // terminator
 };
 
-
 void help(int argc, char ** args) {
 	printf("%s [OPTIONS] file1 file2...\n"
 			"--output\n"

main_old.cpp

@@ -44,9 +44,6 @@ protected:
 	std::set<Path::Path> includes;
 };
 
-#include <functional>
-
-
 template <typename iterator>
 std::string readTill(iterator &start, const iterator &end, std::function<bool(const iterator&)> limiter) {
 	iterator current = start;

test_hashtable.c

@@ -11,7 +11,6 @@
 struct hashtable table = {};
 struct entry nEntry;
 
-
 void testresize() {
 	init("resize");
 	int err = hashtable_resize(&table, 20);
@@ -52,6 +51,13 @@ void* test_copy(void * data) {
 void testget()  {
 	init("get");
 
+	hashtable_clear(&table);
+
+	if (hashtable_get(&table, "hi") != hashtable_end(&table)) {
+		fail("found entry in empty table");
+	}
+
+	hashtable_add(&table, nEntry);
 	hashtable_iterator_t elem = hashtable_get(&table, "hi");
 
 	if (elem == hashtable_end(&table)) {