X-Git-Url: https://git.cameronkatri.com/mandoc.git/blobdiff_plain/ed985164976ccd03ae1cd954a33c775bfc84b0c2..7a54aa87883d10656a4ae69fa2d4faee332cc0d7:/man_hash.c

diff --git a/man_hash.c b/man_hash.c
index 1cbfb1b7..bb7b4665 100644
--- a/man_hash.c
+++ b/man_hash.c
@@ -1,6 +1,7 @@
-/*	$Id: man_hash.c,v 1.29 2014/12/01 08:05:52 schwarze Exp $ */
+/*	$Id: man_hash.c,v 1.35 2016/07/15 18:03:45 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2015 Ingo Schwarze <schwarze@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -23,7 +24,10 @@
 #include <limits.h>
 #include <string.h>
 
+#include "mandoc.h"
+#include "roff.h"
 #include "man.h"
+#include "libmandoc.h"
 #include "libman.h"
 
 #define	HASH_DEPTH	 6
@@ -46,18 +50,15 @@
 static	unsigned char	 table[26 * HASH_DEPTH];
 
 
-/*
- * XXX - this hash has global scope, so if intended for use as a library
- * with multiple callers, it will need re-invocation protection.
- */
 void
 man_hash_init(void)
 {
 	int		 i, j, x;
 
-	memset(table, UCHAR_MAX, sizeof(table));
+	if (*table != '\0')
+		return;
 
-	assert(MAN_MAX < UCHAR_MAX);
+	memset(table, UCHAR_MAX, sizeof(table));
 
 	for (i = 0; i < (int)MAN_MAX; i++) {
 		x = man_macronames[i][0];
@@ -76,27 +77,27 @@ man_hash_init(void)
 	}
 }
 
-enum mant
+int
 man_hash_find(const char *tmp)
 {
 	int		 x, y, i;
-	enum mant	 tok;
+	int		 tok;
 
 	if ('\0' == (x = tmp[0]))
-		return(MAN_MAX);
+		return TOKEN_NONE;
 	if ( ! (isalpha((unsigned char)x)))
-		return(MAN_MAX);
+		return TOKEN_NONE;
 
 	HASH_ROW(x);
 
 	for (i = 0; i < HASH_DEPTH; i++) {
 		if (UCHAR_MAX == (y = table[x + i]))
-			return(MAN_MAX);
+			return TOKEN_NONE;
 
-		tok = (enum mant)y;
+		tok = y;
 		if (0 == strcmp(tmp, man_macronames[tok]))
-			return(tok);
+			return tok;
 	}
 
-	return(MAN_MAX);
+	return TOKEN_NONE;
 }