init commit

wofi/src/config.c

@@ -0,0 +1,98 @@
+/*
+ *  Copyright (C) 2019-2024 Scoopta
+ *  This file is part of Wofi
+ *  Wofi is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Wofi is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Wofi.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <map.h>
+
+void config_put(struct map* map, char* line) {
+	size_t line_size = strlen(line);
+	char* new_line = calloc(1, line_size + 1);
+	size_t new_line_count = 0;
+	for(size_t count = 0; count < line_size; ++count) {
+		if(line[count] == '\\') {
+			new_line[new_line_count++] = line[++count];
+		} else if(line[count] == '#') {
+			break;
+		} else {
+			new_line[new_line_count++] = line[count];
+		}
+	}
+	line = new_line;
+	char* equals = strchr(line, '=');
+	if(equals == NULL) {
+		free(line);
+		return;
+	}
+	*equals = 0;
+	char* key = equals - 1;
+	while(*key == ' ') {
+		--key;
+	}
+	*(key + 1) = 0;
+	char* value = equals + 1;
+	while(*value == ' ') {
+		++value;
+	}
+	size_t len = strlen(value);
+	char* end = value + len - 1;
+	if(*end == '\n' || *end == ' ') {
+		*end = 0;
+	}
+	map_put(map, line, value);
+	free(line);
+}
+
+void config_load(struct map* map, const char* config) {
+	FILE* file = fopen(config, "r");
+	char* line = NULL;
+	size_t size = 0;
+	while(getline(&line, &size, file) != -1) {
+		config_put(map, line);
+	}
+	free(line);
+	fclose(file);
+}
+
+char* config_get(struct map* config, const char* key, char* def_opt) {
+	char* opt = map_get(config, key);
+	if(opt == NULL) {
+		opt = def_opt;
+	}
+	return opt;
+}
+
+int config_get_mnemonic(struct map* config, const char* key, char* def_opt, int num_choices, ...) {
+	char* opt = config_get(config, key, def_opt);
+	va_list ap;
+	va_start(ap, num_choices);
+	int result = 0;
+	for(int i = 0; i < num_choices; i++) {
+		char* cmp_str = va_arg(ap, char*);
+		if(strcmp(opt, cmp_str) == 0) {
+			result = i;
+			break;
+		}
+	}
+	va_end(ap);
+	return result;
+}