Expand ~ in launcher_item_app

git-svn-id: http://tint2.googlecode.com/svn/trunk@726 121b4492-b84c-0410-8b4c-0d4edfb3f3cc

src/util/common.c

@@ -26,7 +26,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-
+#include <glib.h>
 #include "common.h"
 #include "../server.h"
 
@@ -95,6 +95,43 @@ void tint_exec(const char *command)
 	}
 }
 
+char *expand_tilde(char *s)
+{
+	const gchar *home = g_get_home_dir();
+	if (home &&
+		(strcmp(s, "~") == 0 ||
+		strstr(s, "~/") == s)) {
+		char *result = calloc(strlen(home) + strlen(s), 1);
+		strcat(result, home);
+		strcat(result, s + 1);
+		return result;
+	} else {
+		return strdup(s);
+	}
+}
+
+char *contract_tilde(char *s)
+{
+	const gchar *home = g_get_home_dir();
+	if (!home)
+		return strdup(s);
+
+	char *home_slash = calloc(strlen(home) + 1, 1);
+	strcat(home_slash, home);
+	strcat(home_slash, "/");
+
+	if ((strcmp(s, home) == 0 ||
+		strstr(s, home_slash) == s)) {
+		char *result = calloc(strlen(s) - strlen(home) + 1, 1);
+		strcat(result, "~");
+		strcat(result, s + strlen(home));
+		free(home_slash);
+		return result;
+	} else {
+		free(home_slash);
+		return strdup(s);
+	}
+}
 
 int hex_char_to_int (char c)
 {
@@ -297,7 +334,6 @@ void adjust_asb(DATA32 *data, int w, int h, int alpha, float satur, float bright
 	}
 }
 
-
 void createHeuristicMask(DATA32* data, int w, int h)
 {
 	// first we need to find the mask color, therefore we check all 4 edge pixel and take the color which

src/util/common.h

@@ -43,6 +43,13 @@ int parse_line (const char *line, char **key, char **value);
 // execute a command by calling fork
 void tint_exec(const char* command);
 
+// Returns a copy of s in which "~" is expanded to the path to the user's home directory.
+// The returned string must be freed by the caller.
+char *expand_tilde(char *s);
+
+// The opposite of expand_tilde: replaces the path to the user's home directory with "~".
+// The returned string must be freed by the caller.
+char *contract_tilde(char *s);
 
 // conversion
 int hex_char_to_int (char c);