style: identifiers separation

src/state.c

@@ -415,7 +415,10 @@ void state_parse_config(StateConfig *state_config, const ConfigFile *config) {
 void state_midi_event(SharedContext *context, const StateConfig *state_config,
                       const MidiDevice *midi, unsigned char code,
                       unsigned char value, bool trace_midi) {
-  unsigned int i, j, k, part;
+  unsigned int i;
+  unsigned int j;
+  unsigned int k;
+  unsigned int part;
   bool found;
 
   found = false;
@@ -564,7 +567,10 @@ bool state_background_write(SharedContext *context,
                             const StateConfig *state_config,
                             const MidiDevice *midi) {
   pid_t pid;
-  bool beat_active, last_active, change, last_change;
+  bool beat_active;
+  bool last_active;
+  bool change;
+  bool last_change;
 
   pid = fork();
   if (pid < 0) {

src/string.c

@@ -59,7 +59,8 @@ bool string_is_number(const char *value) {
 
 char *string_replace_at(const char *src, unsigned int from, unsigned int to,
                         const char *rpl) {
-  unsigned long src_len, rpl_len;
+  unsigned long src_len;
+  unsigned long rpl_len;
   char *dst;
 
   src_len = strnlen(src, STR_LEN * STR_LEN);

src/timer.c

@@ -18,7 +18,8 @@ bool timer_inc(Timer *timer) {
 
 double timer_reset(Timer *timer) {
   struct timeval stop;
-  double secs, per_secs;
+  double secs;
+  double per_secs;
 
   gettimeofday(&stop, NULL);
 

src/window.c

@@ -121,7 +121,8 @@ void window_events() { glfwPollEvents(); }
 double window_get_time() { return glfwGetTime(); }
 
 void window_use(Window *window, SharedContext *context) {
-  int width, height;
+  int width;
+  int height;
 
   glfwMakeContextCurrent(window);
   glfwGetFramebufferSize(window, &width, &height);