Add token_to_packed() utility function.

diff --git a/advent.h b/advent.h
index ff62476379a7f16dda8212109ef28a52cbc02cb5..1a6ab089f2838c19ee762fd3eade3e60ceca9fb0 100644 (file)
--- a/advent.h
+++ b/advent.h
@@ -90,6 +90,7 @@ extern bool oldstyle, editline, prompt;
 extern void* xmalloc(size_t size);
 extern char* xstrdup(const char*);
 extern void packed_to_token(long, char token[]);
+extern void token_to_packed(char token[], long);
 extern void speak(const char*);
 extern bool wordeq(token_t, token_t);
 extern bool wordempty(token_t);

diff --git a/misc.c b/misc.c
index ba834fdffd44b84cef98268a2e2cbadc8dea63b2..64c05ceb1fa8c636b2b4659c33ffba8a3d85da90 100644 (file)
--- a/misc.c
+++ b/misc.c
@@ -50,6 +50,18 @@ void packed_to_token(long packed, char token[6])
     }
 }
 
+void token_to_packed(char token[6], long* packed)
+{
+  *packed = 0;
+  for (size_t i = 0; i < 5; ++i)
+    {
+      if (token[4 - i] == '\0')
+       continue;       
+      char mapped = ascii_to_advent[token[4 - i]];
+      *packed |= (mapped << (6 * i));
+    }
+}
+
 /* Hide the fact that wods are corrently packed longs */
 
 bool wordeq(token_t a, token_t b)