add dump mode functions

components/linenoise-async/linenoise-async.c

@@ -137,6 +137,7 @@ static void refreshLineWithFlags(struct linenoiseState *l, int flags);
 static int maskmode = 0; /* Show "***" instead of input. For passwords. */
 static int rawmode = 0; /* For atexit() function to check if restore is needed*/
 static int mlmode = 0;  /* Multi line mode. Default is single line. */
+static int dumbmode = 0; /* Dumb mode where line editing is disabled. Off by default */
 static int atexit_registered = 0; /* Register atexit just 1 time. */
 static int history_max_len = LINENOISE_DEFAULT_HISTORY_MAX_LEN;
 static int history_len = 0;
@@ -171,25 +172,6 @@ int linenoiseHistoryAdd(const char *line);
 #define REFRESH_ALL (REFRESH_CLEAN|REFRESH_WRITE) // Do both.
 static void refreshLine(struct linenoiseState *l);
 
-/* Debugging macro. */
-#if 0
-FILE *lndebug_fp = NULL;
-#define lndebug(...) \
-    do { \
-        if (lndebug_fp == NULL) { \
-            lndebug_fp = fopen("/tmp/lndebug.txt","a"); \
-            fprintf(lndebug_fp, \
-            "[%d %d %d] p: %d, rows: %d, rpos: %d, max: %d, oldmax: %d\n", \
-            (int)l->len,(int)l->pos,(int)l->oldpos,plen,rows,rpos, \
-            (int)l->oldrows,old_rows); \
-        } \
-        fprintf(lndebug_fp, ", " __VA_ARGS__); \
-        fflush(lndebug_fp); \
-    } while (0)
-#else
-#define lndebug(fmt, ...)
-#endif
-
 /* ======================= Low level terminal handling ====================== */
 
 /* Enable "mask mode". When it is enabled, instead of the input that
@@ -210,6 +192,16 @@ void linenoiseSetMultiLine(int ml) {
     mlmode = ml;
 }
 
+/* Set if terminal does not recognize escape sequences */
+void linenoiseSetDumbMode(int set) {
+    dumbmode = set;
+}
+
+/* Returns whether the current mode is dumbmode or not. */
+bool linenoiseIsDumbMode(void) {
+    return dumbmode;
+}
+
 /* Return true if the terminal name is in the list of terminals we know are
  * not able to understand basic escape sequences. */
 static int isUnsupportedTerm(void) {
@@ -672,14 +664,12 @@ static void refreshMultiLine(struct linenoiseState *l, int flags) {
 
     if (flags & REFRESH_CLEAN) {
         if (old_rows-rpos > 0) {
-            lndebug("go down %d", old_rows-rpos);
             snprintf(seq,64,"\x1b[%dB", old_rows-rpos);
             abAppend(&ab,seq,strlen(seq));
         }
 
         /* Now for every row clear it, go up. */
         for (j = 0; j < old_rows-1; j++) {
-            lndebug("clear+up");
             snprintf(seq,64,"\r\x1b[0K\x1b[1A");
             abAppend(&ab,seq,strlen(seq));
         }
@@ -687,7 +677,6 @@ static void refreshMultiLine(struct linenoiseState *l, int flags) {
 
     if (flags & REFRESH_ALL) {
         /* Clean the top line. */
-        lndebug("clear");
         snprintf(seq,64,"\r\x1b[0K");
         abAppend(&ab,seq,strlen(seq));
     }
@@ -711,7 +700,6 @@ static void refreshMultiLine(struct linenoiseState *l, int flags) {
             l->pos == l->len &&
             (l->pos+plen) % l->cols == 0)
         {
-            lndebug("<newline>");
             abAppend(&ab,"\n",1);
             snprintf(seq,64,"\r");
             abAppend(&ab,seq,strlen(seq));
@@ -721,18 +709,15 @@ static void refreshMultiLine(struct linenoiseState *l, int flags) {
 
         /* Move cursor to right position. */
         rpos2 = (plen+l->pos+l->cols)/l->cols; /* Current cursor relative row */
-        lndebug("rpos2 %d", rpos2);
 
         /* Go up till we reach the expected positon. */
         if (rows-rpos2 > 0) {
-            lndebug("go-up %d", rows-rpos2);
             snprintf(seq,64,"\x1b[%dA", rows-rpos2);
             abAppend(&ab,seq,strlen(seq));
         }
 
         /* Set column. */
         col = (plen+(int)l->pos) % (int)l->cols;
-        lndebug("set col %d", 1+col);
         if (col)
             snprintf(seq,64,"\r\x1b[%dC", col);
         else
@@ -740,7 +725,6 @@ static void refreshMultiLine(struct linenoiseState *l, int flags) {
         abAppend(&ab,seq,strlen(seq));
     }
 
-    lndebug("\n");
     l->oldpos = l->pos;
 
     if (write(fd,ab.b,ab.len) == -1) {} /* Can't recover from write error. */