X-Git-Url: https://git.cameronkatri.com/mandoc.git/blobdiff_plain/ea6ed8eb4a9349ba679125913c5a03c1027783b2..a86259b51b74480e80c3daacead5b638d4cf0206:/mdoc_hash.c

diff --git a/mdoc_hash.c b/mdoc_hash.c
index 0b89cd8a..cad3c2db 100644
--- a/mdoc_hash.c
+++ b/mdoc_hash.c
@@ -1,6 +1,7 @@
-/*	$Id: mdoc_hash.c,v 1.13 2010/03/31 07:13:53 kristaps Exp $ */
+/*	$Id: mdoc_hash.c,v 1.27 2016/07/15 18:03:45 schwarze Exp $ */
 /*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2008, 2009 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
@@ -14,9 +15,7 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
-#ifdef HAVE_CONFIG_H
 #include "config.h"
-#endif
 
 #include <sys/types.h>
 
@@ -27,33 +26,37 @@
 #include <stdio.h>
 #include <string.h>
 
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "libmandoc.h"
 #include "libmdoc.h"
 
-static	u_char		 table[27 * 12];
+static	unsigned char	 table[27 * 12];
+
 
-/*
- * XXX - this hash has global scope, so if intended for use as a library
- * with multiple callers, it will need re-invocation protection.
- */
 void
 mdoc_hash_init(void)
 {
 	int		 i, j, major;
 	const char	*p;
 
+	if (*table != '\0')
+		return;
+
 	memset(table, UCHAR_MAX, sizeof(table));
 
-	for (i = 0; i < MDOC_MAX; i++) {
+	for (i = 0; i < (int)MDOC_MAX; i++) {
 		p = mdoc_macronames[i];
 
-		if (isalpha((u_char)p[1]))
-			major = 12 * (tolower((u_char)p[1]) - 97);
+		if (isalpha((unsigned char)p[1]))
+			major = 12 * (tolower((unsigned char)p[1]) - 97);
 		else
 			major = 12 * 26;
 
 		for (j = 0; j < 12; j++)
 			if (UCHAR_MAX == table[major + j]) {
-				table[major + j] = (u_char)i;
+				table[major + j] = (unsigned char)i;
 				break;
 			}
 
@@ -61,32 +64,32 @@ mdoc_hash_init(void)
 	}
 }
 
-enum mdoct
+int
 mdoc_hash_find(const char *p)
 {
 	int		  major, i, j;
 
 	if (0 == p[0])
-		return(MDOC_MAX);
-	if ( ! isalpha((u_char)p[0]) && '%' != p[0])
-		return(MDOC_MAX);
+		return TOKEN_NONE;
+	if ( ! isalpha((unsigned char)p[0]) && '%' != p[0])
+		return TOKEN_NONE;
 
-	if (isalpha((u_char)p[1]))
-		major = 12 * (tolower((u_char)p[1]) - 97);
+	if (isalpha((unsigned char)p[1]))
+		major = 12 * (tolower((unsigned char)p[1]) - 97);
 	else if ('1' == p[1])
 		major = 12 * 26;
-	else 
-		return(MDOC_MAX);
+	else
+		return TOKEN_NONE;
 
 	if (p[2] && p[3])
-		return(MDOC_MAX);
+		return TOKEN_NONE;
 
 	for (j = 0; j < 12; j++) {
 		if (UCHAR_MAX == (i = table[major + j]))
 			break;
 		if (0 == strcmp(p, mdoc_macronames[i]))
-			return((enum mdoct)i);
+			return i;
 	}
 
-	return(MDOC_MAX);
+	return TOKEN_NONE;
 }