tweak: conciseness tweaks.

plugins/libre_redirect/example.c

@@ -5,19 +5,15 @@
 int main(){
   char uri[] = "https://reddit.com/r/blah";
   
-  int uri_length = strlen(uri);
-  int l = LIBRE_N+uri_length;
-  char uri_filtered[l++];
-  for(int i=0; i<l; i++){
-    uri_filtered[i] = ' ';
-  }
-  uri_filtered[l] = '\0';
+  int l = LIBRE_N + strlen(uri) + 1;
+  char uri_filtered[l];
+  str_init(uri_filtered, l);
 
   int libre_check = libre_redirect(uri, uri_filtered);
   if(!libre_check){
-    printf("Filtered url: %s", uri_filtered);
+    printf("Filtered url: %s\n", uri_filtered);
   }else{
-    printf("Uri: %s", uri);
+    printf("Uri: %s\n", uri);
     // failure; do something with the original uri.
   }
 }

plugins/libre_redirect/libre_redirect.c

@@ -6,6 +6,13 @@
 
 // int str_replace_start(const char* string, const char* target, const char* replacement, char* output){
 
+void str_init(char* str, int n){
+  for(int i=0; i<n; i++){
+    str[i] = ' ';
+  }
+  str[n] = '\0';
+} // could also use <https://manpages.ubuntu.com/manpages/impish/man3/strinit.3pub.html>
+
 int libre_redirect(const char* uri, char* output){
   /* inv.riverside.rocks */
   // max length
@@ -16,7 +23,7 @@ int libre_redirect(const char* uri, char* output){
     return 1; // not enough memory. 
   }else{
     char tmp_uri[l2++];
-    strcpy(tmp_uri, uri);
+    strcpy(tmp_uri, uri); // includes terminating '\0'
 
     char* sites[] = { 
       "https://youtube.com", 
@@ -39,7 +46,6 @@ int libre_redirect(const char* uri, char* output){
       strcpy(tmp_uri, output);
     }
     strcpy(output, tmp_uri);
-
   }
 
   return 0;

plugins/libre_redirect/libre_redirect.h

@@ -4,5 +4,6 @@
 #define LIBRE_N 12
 
 int libre_redirect(const char* uri, char* uri_filtered);
+void str_init(char* str, int n);
 
 #endif