X-Git-Url: https://git.danieliu.xyz/?a=blobdiff_plain;ds=sidebyside;f=dwmblocks.c;h=c66dbc794b6d61f0054903077dbc63a9751088fa;hb=13c7700f34b74c4cf91dfb261c61ca1ca1eac6c3;hp=2014eee2364b50af66dd65e325bbc906c5567eff;hpb=d581dae18025f141d401747b8265fa9c84e8445a;p=dwmblocks.git

diff --git a/dwmblocks.c b/dwmblocks.c
index 2014eee..c66dbc7 100644
--- a/dwmblocks.c
+++ b/dwmblocks.c
@@ -50,16 +50,19 @@ static void (*writestatus) () = setroot;
 void getcmd(const Block *block, char *output)
 {
 	strcpy(output, block->icon);
-	char *cmd = block->command;
-	FILE *cmdf = popen(cmd,"r");
+	FILE *cmdf = popen(block->command, "r");
 	if (!cmdf)
 		return;
-	char c;
 	int i = strlen(block->icon);
 	fgets(output+i, CMDLENGTH-i-delimLen, cmdf);
 	i = strlen(output);
-	if (delim[0] != '\0' && --i)
-		 strncpy(output+i, delim, delimLen); 
+	if (i == 0)//return if block and command output are both empty
+		return;
+	if (delim[0] != '\0') {
+		//only chop off newline if one is present at the end
+		i = output[i-1] == '\n' ? i-1 : i;
+		strncpy(output+i, delim, delimLen); 
+	}
 	else
 		output[i++] = '\0';
 	pclose(cmdf);
@@ -68,7 +71,7 @@ void getcmd(const Block *block, char *output)
 void getcmds(int time)
 {
 	const Block* current;
-	for(unsigned int i = 0; i < LENGTH(blocks); i++)
+	for (unsigned int i = 0; i < LENGTH(blocks); i++)
 	{
 		current = blocks + i;
 		if ((current->interval != 0 && time % current->interval == 0) || time == -1)
@@ -91,11 +94,11 @@ void setupsignals()
 {
 #ifndef __OpenBSD__
 	    /* initialize all real time signals with dummy handler */
-    for(int i = SIGRTMIN; i <= SIGRTMAX; i++)
+    for (int i = SIGRTMIN; i <= SIGRTMAX; i++)
         signal(i, dummysighandler);
 #endif
 
-	for(unsigned int i = 0; i < LENGTH(blocks); i++)
+	for (unsigned int i = 0; i < LENGTH(blocks); i++)
 	{
 		if (blocks[i].signal > 0)
 			signal(SIGMINUS+blocks[i].signal, sighandler);
@@ -107,7 +110,7 @@ int getstatus(char *str, char *last)
 {
 	strcpy(last, str);
 	str[0] = '\0';
-	for(unsigned int i = 0; i < LENGTH(blocks); i++)
+	for (unsigned int i = 0; i < LENGTH(blocks); i++)
 		strcat(str, statusbar[i]);
 	str[strlen(str)-strlen(delim)] = '\0';
 	return strcmp(str, last);//0 if they are the same
@@ -141,12 +144,11 @@ void statusloop()
 	setupsignals();
 	int i = 0;
 	getcmds(-1);
-	while(statusContinue)
+	while (statusContinue)
 	{
-		getcmds(i);
+		getcmds(i++);
 		writestatus();
 		sleep(1.0);
-		i++;
 	}
 }
 
@@ -171,11 +173,11 @@ void termhandler()
 
 int main(int argc, char** argv)
 {
-	for(int i = 0; i < argc; i++)
+	for (int i = 0; i < argc; i++) //Handle command line arguments
 	{
 		if (!strcmp("-d",argv[i]))
 			strncpy(delim, argv[++i], delimLen);
-		else if(!strcmp("-p",argv[i]))
+		else if (!strcmp("-p",argv[i]))
 			writestatus = pstdout;
 	}
 	delimLen = MIN(delimLen, strlen(delim));