update shellPrintNChar

it padding the output to be exactly  `width` columns now.

src/kit/shell/inc/shell.h

@@ -68,7 +68,7 @@ void get_history_path(char* history);
 void cleanup_handler(void* arg);
 void exitShell();
 int shellDumpResult(TAOS* con, char* fname, int* error_no, bool printMode);
-int shellPrintNChar(const char* str, int length, int width);
+void shellPrintNChar(const char* str, int length, int width);
 void shellGetGrantInfo(void *con);
 int isCommentLine(char *line);
 

src/kit/shell/src/shellDarwin.c

@@ -352,7 +352,7 @@ void *shellLoopQuery(void *arg) {
   return NULL;
 }
 
-int shellPrintNChar(const char *str, int length, int width) {
+void shellPrintNChar(const char *str, int length, int width) {
   int pos = 0, cols = 0;
   while (pos < length) {
     wchar_t wc;
@@ -371,7 +371,9 @@ int shellPrintNChar(const char *str, int length, int width) {
     }
   }
 
-  return cols;
+  for (; cols < width; cols++) {
+    putchar(' ');
+  }
 }
 
 

src/kit/shell/src/shellEngine.c

@@ -484,9 +484,7 @@ static void printField(const char* val, TAOS_FIELD* field, int width, int32_t le
       break;
     case TSDB_DATA_TYPE_BINARY:
     case TSDB_DATA_TYPE_NCHAR:
-      for (int w = shellPrintNChar(val, length, width); w < width; w++) {
+      shellPrintNChar(val, length, width);
-        putchar(' ');
-      }
       break;
     case TSDB_DATA_TYPE_TIMESTAMP:
       formatTimestamp(buf, *(int64_t*)val, precision);

src/kit/shell/src/shellLinux.c

@@ -329,7 +329,7 @@ void *shellLoopQuery(void *arg) {
   return NULL;
 }
 
-int shellPrintNChar(const char *str, int length, int width) {
+void shellPrintNChar(const char *str, int length, int width) {
   int pos = 0, cols = 0;
   while (pos < length) {
     wchar_t wc;
@@ -348,7 +348,9 @@ int shellPrintNChar(const char *str, int length, int width) {
     }
   }
 
-  return cols;
+  for (; cols < width; cols++) {
+    putchar(' ');
+  }
 }
 
 int get_old_terminal_mode(struct termios *tio) {

src/kit/shell/src/shellWindows.c

@@ -217,7 +217,7 @@ void *shellLoopQuery(void *arg) {
   return NULL;
 }
 
-int shellPrintNChar(const char *str, int length, int width) {
+void shellPrintNChar(const char *str, int length, int width) {
   int pos = 0, cols = 0;
   while (pos < length) {
     wchar_t wc;
@@ -237,7 +237,9 @@ int shellPrintNChar(const char *str, int length, int width) {
     }
   }
 
-  return cols;
+  for (; cols < width; cols++) {
+    putchar(' ');
+  }
 }