Move Yang patterns: \n match from yang parse to regex compile stage

lib/src/clixon_string.c

@@ -646,83 +646,6 @@ uri_str2cvec(char  *string,
     goto done;
 }
 
-/*! Translate \n and others from \\n (two chars) to \n (one char)
- *
- * This is needed in yang regex it seems.
- * It was triggered by eg draft-wwlh-netconf-list-pagination-00 module example-social tagline
- *       leaf tagline {
- *         type string {
- *           length "1..80";
- *           pattern '.*[\n].*' {
- *             modifier invert-match;
- * @param[in]  orig  Original string eg with \\n
- * @param[out] enc   Encoded string with \n, malloced.
- *
- * @see https://www.regular-expressions.info/nonprint.html
- */
-int
-nonprint_encode(char  *orig, 
-		char **encp)
-{
-    int   retval = -1;
-    char *enc = NULL;
-    int   i;
-    int   j;
-    int   esc = 0;
-    char  c;
-    char  c1;
-
-    if (orig == NULL){
-	clicon_err(OE_UNIX, EINVAL, "orig is NULL");
-	goto done;
-    }
-    /* Encoded string is equal or shorter */
-    if ((enc = malloc(strlen(orig)+1)) == NULL){
-	clicon_err(OE_UNIX, errno, "strdup");
-	goto done;
-    }
-    j = 0;
-    for (i=0; i<strlen(orig); i++){
-	c = orig[i];
-	switch (c){
-	case '\\':
-	    /* Look ahead */
-	    if (i+1 < strlen(orig)){
-		c1 = orig[i+1]; 
-		switch (c1){
-		case 'n':
-		    enc[j++] = '\n';
-		    esc++;
-		    break;
-		case 't':
-		    enc[j++] = '\t';
-		    esc++;
-		    break;
-		case 'r':
-		    enc[j++] = '\r';
-		    esc++;
-		    break;
-		default:
-		    enc[j++] = c;
-		    break;
-		}
-	    }
-	    break;
-	default:
-	    if (esc)
-		esc = 0;		
-	    else
-		enc[j++] = c;
-	    break;
-	}
-    }
-    enc[j++] = '\0';
-    *encp = enc;
-    retval = 0;
- done:
-    return retval;
-}
-
 /*! Map from int to string using str2int map
  * @param[in] ms   String, integer map
  * @param[in] i    Input integer