Describe custom interface.

[mLib] / atom.c

diff --git a/atom.c b/atom.c
index 661c3429b055dab9f4941dd78ac2f4c4593c1156..dd02f5457b656919995052b037cf6f5de79b5e65 100644 (file)
--- a/atom.c
+++ b/atom.c
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
 /* -*-c-*-
  *

- * $Id: atom.c,v 1.2 2001/01/21 19:04:51 mdw Exp $
+ * $Id: atom.c,v 1.3 2001/01/25 21:13:15 mdw Exp $

  *
  * Atom management
  *
  *
  * Atom management
  *


@@ -30,6 +30,9 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: atom.c,v $
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: atom.c,v $

+ * Revision 1.3  2001/01/25 21:13:15  mdw
+ * New function allowing an atom's length to be specified at intern time.
+ *

  * Revision 1.2  2001/01/21 19:04:51  mdw
  * Include `crc32.h' for @CRC32@ macro.
  *
  * Revision 1.2  2001/01/21 19:04:51  mdw
  * Include `crc32.h' for @CRC32@ macro.
  *


@@ -105,10 +108,11 @@ void atom_destroytable(atom_table *t)
   sym_destroy(&t->t);
 }
 
   sym_destroy(&t->t);
 }
 

-/* --- @atom_intern@ --- *
+/* --- @atom_intern@, @atom_nintern@ --- *

  *
  * Arguments:  @atom_table *t@ = pointer to an atom table
  *             @const char *p@ = pointer to the string to intern
  *
  * Arguments:  @atom_table *t@ = pointer to an atom table
  *             @const char *p@ = pointer to the string to intern

+ *             @size_t n@ = size of the string (for @atom_nintern)

  *
  * Returns:    A pointer to the atom block for the given symbol string.
  *
  *
  * Returns:    A pointer to the atom block for the given symbol string.
  *


@@ -128,6 +132,18 @@ atom *atom_intern(atom_table *t, const char *p)
   return (a);
 }
 
   return (a);
 }
 

+atom *atom_nintern(atom_table *t, const char *p, size_t n)
+{
+  atom *a;
+  unsigned f;
+
+  ATOM_RESOLVE(t);
+  a = sym_find(&t->t, p, n, sizeof(atom), &f);
+  if (!f)
+    a->f = 0;
+  return (a);
+}
+

 /* --- @atom_gensym@ --- *
  *
  * Arguments:  @atom_table *t@ = pointer to a symbol table
 /* --- @atom_gensym@ --- *
  *
  * Arguments:  @atom_table *t@ = pointer to a symbol table