If no output device was allocated because no file wanted to produce output,

[mandoc.git] / mdoc_hash.c

diff --git a/mdoc_hash.c b/mdoc_hash.c
index 5e34fe8f58be421e6e983a464d7d77cd1919d7b6..476116d792abddfa3965073bb119ef7abfe316a0 100644 (file)
--- a/mdoc_hash.c
+++ b/mdoc_hash.c
@@ -1,6 +1,7 @@
-/*     $Id: mdoc_hash.c,v 1.21 2014/08/10 23:54:41 schwarze Exp $ */
+/*     $Id: mdoc_hash.c,v 1.26 2015/10/06 18:32:19 schwarze Exp $ */
 /*
  * 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
@@ -25,22 +26,22 @@
 #include <stdio.h>
 #include <string.h>
 
+#include "roff.h"
 #include "mdoc.h"
 #include "libmdoc.h"
 
 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 < (int)MDOC_MAX; i++) {
@@ -61,32 +62,32 @@ mdoc_hash_init(void)
        }
 }
 
-enum mdoct
+int
 mdoc_hash_find(const char *p)
 {
        int               major, i, j;
 
        if (0 == p[0])
-               return(MDOC_MAX);
+               return TOKEN_NONE;
        if ( ! isalpha((unsigned char)p[0]) && '%' != p[0])
-               return(MDOC_MAX);
+               return TOKEN_NONE;
 
        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);
+               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;
 }