Adopt use of gnulib for portability.

[pspp-builds.git] / src / groff-font.c

diff --git a/src/groff-font.c b/src/groff-font.c
index 835869af8e2a12bda4a92a4d9e404d16355cee2c..af86e784f2ad958849c41509f3bc56de8eae64a2 100644 (file)
--- a/src/groff-font.c
+++ b/src/groff-font.c
@@ -14,11 +14,12 @@
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-   02111-1307, USA. */
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA. */
 
 #include <config.h>
-#include <assert.h>
+#include "font.h"
+#include "error.h"
 #include <stdio.h>
 #include <errno.h>
 #include <stdlib.h>
@@ -27,18 +28,21 @@
 #include "alloc.h"
 #include "error.h"
 #include "filename.h"
-#include "font.h"
+#include "getline.h"
 #include "hash.h"
 #include "pool.h"
 #include "str.h"
 #include "version.h"
 
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
 int font_number_to_index (int);
 
 int space_index;
 
 static int font_msg (int, const char *,...)
-     __attribute__ ((format (printf, 2, 3)));
+     PRINTF_FORMAT (2, 3);
 static void scan_badchars (char *, int);
 static void dup_char_metric (struct font_desc * font, int dest, int src);
 static void add_char_metric (struct font_desc * font, struct char_metrics *metrics,
@@ -48,13 +52,7 @@ static void add_kern (struct font_desc * font, int ch1, int ch2, int adjust);
 /* Typical whitespace characters for tokenizing. */
 static const char whitespace[] = " \t\n\r\v";
 
-void
-groff_init (void)
-{
-  space_index = font_char_name_to_index ("space");
-}
-
-/* Some notes on the groff_font(8) manpage:
+/* Some notes on the groff_font manpage:
 
    DESC file format: A typical PostScript `res' would be 72000, with
    `hor' and `vert' set to 1 to indicate that all those positions are
@@ -68,7 +66,7 @@ groff_init (void)
 
 /* Reads a Groff font description file and converts it to a usable
    binary format in memory.  Installs the binary format in the global
-   font table.  See groff_font(8) for a description of the font
+   font table.  See groff_font for a description of the font
    description format supported.  Returns nonzero on success. */
 struct font_desc *
 groff_read_font (const char *fn)
@@ -92,7 +90,7 @@ groff_read_font (const char *fn)
   char *key;
 
   /* 0=kernpairs section, 1=charset section. */
-  int charset;
+  int charset = 0;
 
   /* Index for previous line. */
   int prev_index = -1;
@@ -100,7 +98,7 @@ groff_read_font (const char *fn)
   /* Current location in file, used for error reporting. */
   struct file_locator where;
 
-#if unix
+#ifdef unix
   fn = fn_tilde_expand (fn);
 #endif
 
@@ -355,7 +353,7 @@ groff_read_font (const char *fn)
       goto file_lossage;
     }
   free (line);
-#if unix
+#ifdef unix
   free ((char *) fn);
 #endif
 
@@ -381,7 +379,7 @@ lose:
   if (f != NULL)
     fclose (f);
   pool_destroy (font_pool);
-#if unix
+#ifdef unix
   free ((char *) fn);
 #endif
   err_pop_file_locator (&where);
@@ -447,6 +445,20 @@ static struct
   }
 hash;
 
+void
+groff_init (void)
+{
+  space_index = font_char_name_to_index ("space");
+}
+
+void
+groff_done (void)
+{
+  free (hash.tab) ;
+  pool_destroy(hash.ar);
+}
+
+
 /* Searches for NAME in the global character code table, returns the
    index if found; otherwise inserts NAME and returns the new
    index. */
@@ -600,22 +612,26 @@ add_kern (struct font_desc *font, int ch1, int ch2, int adjust)
       for (i = 0; i < font->kern_size; i++)
        font->kern[i].ch1 = -1;
 
-      for (i = 0; i < old_kern_size; i++)
-       {
-         if (old_kern[i].ch1 == -1)
-           continue;
-
-         j = hash_kern (old_kern[i].ch1, old_kern[i].ch2) % font->kern_size;
-         while (font->kern[j].ch1 != -1)
-           if (0 == j--)
-             j = font->kern_size - 1;
-         font->kern[j] = old_kern[i];
-       }
       if (old_kern)
-       pool_free (font->owner, old_kern);
+        {
+          for (i = 0; i < old_kern_size; i++)
+            {
+              if (old_kern[i].ch1 == -1)
+                continue;
+
+              j = (hash_kern (old_kern[i].ch1, old_kern[i].ch2)
+                   & (font->kern_size - 1));
+              while (font->kern[j].ch1 != -1)
+                if (0 == j--)
+                  j = font->kern_size - 1;
+              font->kern[j] = old_kern[i];
+            }
+          pool_free (font->owner, old_kern);
+        }
     }
 
-  for (i = hash_kern (ch1, ch2) % font->kern_size; font->kern[i].ch1 != -1;)
+  for (i = hash_kern (ch1, ch2) & (font->kern_size - 1);
+       font->kern[i].ch1 != -1; )
     if (0 == i--)
       i = font->kern_size - 1;
   font->kern[i].ch1 = ch1;
@@ -960,7 +976,8 @@ font_get_kern_adjust (const struct font_desc *font, int ch1, int ch2)
 
   if (!font->kern)
     return 0;
-  for (i = hash_kern (ch1, ch2) % font->kern_size; font->kern[i].ch1 != -1;)
+  for (i = hash_kern (ch1, ch2) & (font->kern_size - 1);
+       font->kern[i].ch1 != -1;)
     {
       if (font->kern[i].ch1 == ch1 && font->kern[i].ch2 == ch2)
        return font->kern[i].adjust;