I HAVE SLAIN THE BISON WITH A THREE KILOBYTE SIZED DUCK

Makefile

@@ -11,4 +11,4 @@ clean:
 	-rm object/*
 
 test:
-	-./farmsay < <(printf "QUACK bread! I'me! Megmutatom ne'ktek az utolso' embert. Mi az, hogy szerelem? Mi az, hogy teremte's? Mi az, hogy va'gy? Mi az, hogy csillag? - i'gy ke'rdezo''sko:dik az utolso' ember e's vaksin pislog.")
+	valgrind ./farmsay < <(printf "QUACK bread! I'me! Megmutatom ne'ktek az utolso' embert. Mi az, hogy szerelem? Mi az, hogy teremte's? Mi az, hogy va'gy? Mi az, hogy csillag? - i'gy ke'rdezo''sko:dik az utolso' ember e's vaksin pislog.")

farmsay.y

@@ -1,27 +1,25 @@
-%code{
-    extern void yyerror(...);
-}
 %{
     #include "farmsay.yy.h"
 
-    #include <string.h>
     #include <string>
+    #include <string.h>
 
     extern void bison_say(const char * const s);
     extern void snake_say(const char * const s);
     extern void sheep_say(const char * const s);
+    extern void duck_say(const char * const s);
+
+    void yyerror(...) { puts("\033[31m\033[7m!!!\033[0m"); }
 
     using namespace std;
 %}
-
 %union {
     char * strval;
 }
 
-%token <strval> DOT BANG QUESTIONMARK QUACK
+%token DOT BANG QUESTIONMARK QUACK
 %token <strval> STRING
-%type  <strval> sentence snake sheep bison
-
+%type  <strval> sentence
 %%
 
 speech: %empty
@@ -31,16 +29,14 @@ speech: %empty
     | speech duck
     ;
 
-snake: sentence DOT          { snake_say($$); };
-bison: sentence BANG         { bison_say($$); };
-sheep: sentence QUESTIONMARK { sheep_say($$); };
+snake: sentence DOT          { snake_say((string() + $1 + '.').c_str()); free($1); }; 
+bison: sentence BANG         { bison_say((string() + $1 + '!').c_str()); free($1); };
+sheep: sentence QUESTIONMARK { sheep_say((string() + $1 + '?').c_str()); free($1); };
 
-duck:  QUACK sentence BANG          { printf("'%s'\n", $2); };
+duck:  QUACK sentence BANG   {  duck_say($2); free($2); };
 
-sentence: STRING
-    | sentence STRING
+sentence: STRING      { $$ = strdup($1); free($1); }
+    | sentence STRING { $$ = strdup((string() + $1 + $2).c_str()); free($1); free($2); }
     ;
 
 %%
-
-void yyerror(...) { puts("\033[31m\033[7m!!!\033[0m"); }

main.cpp

@@ -67,6 +67,17 @@ void sheep_say(const char * const s) {
     fputs("\033[0m", stdout);
 }
 
+void duck_say(const char * const s) {
+    const char * const DUCK =
+        " \\_0<\n"
+        "  V_  \n"
+    ;
+    fputs("\033[34m", stdout);
+    frame('X', 6, s);
+    puts(DUCK);
+    fputs("\033[0m", stdout);
+}
+
 
 signed main(int argc, char * * argv) {
     yyparse();