fix first line bug

cowsay.c

@@ -9,6 +9,8 @@
 #include "cosmopolitan.h"
 #endif
 
+int replace_tabs(char **rtext); 
+
 int read_file(FILE* in, char **out) {
     int size_of_buffer = 20;
     char *buffer = calloc(size_of_buffer, sizeof(char));
@@ -127,8 +129,9 @@ char *read_stdin(void) {
         return NULL;
     } else {
         strip_excess_char(&text, '\n');
-        strip_excess_char(&text, '\t');
-        strip_excess_char(&text, ' ');
+        replace_tabs(&text);
+        //strip_excess_char(&text, '\t');
+        //strip_excess_char(&text, ' ');
         strip_tailing_whitespace(text);
         return text;
     }
@@ -163,7 +166,7 @@ void insert_char(char **str, char c, int p) {
 void wrap_text(char *text, int width) {
 
     char *last_break = NULL;
-    int current_line = 0;
+    int current_line = 1;
     int last_break_pos = 0;
 
     for (int i = 0; text[i] != '\0'; i++) {
@@ -174,8 +177,6 @@ void wrap_text(char *text, int width) {
             current_line = 0;
         }
 
-        char *breaks = "\t ";
-
         // set whitespace to be break point
         if ((text[i] == ' ') && current_line <= width + 2) {
             last_break_pos = current_line;
@@ -188,6 +189,7 @@ void wrap_text(char *text, int width) {
             last_break = NULL;
             current_line = 0;
         } else if (current_line > width + 1) {
+            // normal break
             *last_break = '\n';
             last_break = NULL;
             current_line = current_line - last_break_pos;
@@ -292,6 +294,10 @@ int replace_tabs(char **rtext) {
         tab = strstr(tab, "\t");
     }
 
+    if (numtabs == 0) {
+        return 0;
+    }
+
     len += 3 * numtabs;
     char * result = malloc(len);