X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Flexer%2Ftoken.c;h=69fd48fb62d48e3a193435dee7763155c71cec1e;hb=dde9b7b4e92fd1221de01e429343ea72ae444e33;hp=718f3d07f3d480a1580d59714ee8348e63a38e5e;hpb=74709d3f6d7c102bb3226f7f132c8be78ce8e8c2;p=pspp

diff --git a/src/language/lexer/token.c b/src/language/lexer/token.c
index 718f3d07f3..69fd48fb62 100644
--- a/src/language/lexer/token.c
+++ b/src/language/lexer/token.c
@@ -27,17 +27,17 @@
 #include "libpspp/cast.h"
 #include "libpspp/misc.h"
 
-
 #include "gl/ftoastr.h"
 #include "gl/xalloc.h"
 
-/* Initializes TOKEN with an arbitrary type, number 0, and a null string. */
 void
-token_init (struct token *token)
+token_copy (struct token *dst, const struct token *src)
 {
-  token->type = 0;
-  token->number = 0.0;
-  token->string = ss_empty ();
+  *dst = (struct token) {
+    .type = src->type,
+    .number = src->number,
+  };
+  ss_alloc_substring (&dst->string, src->string);
 }
 
 /* Frees the string that TOKEN contains. */
@@ -45,7 +45,10 @@ void
 token_uninit (struct token *token)
 {
   if (token != NULL)
-    ss_dealloc (&token->string);
+    {
+      ss_dealloc (&token->string);
+      *token = (struct token) { .type = T_STOP };
+    }
 }
 
 static char *