Update.

1998-04-13 17:40  Ulrich Drepper  <drepper@cygnus.com>

	* iconvdata/8bit-gap.c: Simplify step data handling.
	* iconvdata/8bit-generic.c: Likewise.
	* iconvdata/big5.c: Likewise.
	* iconvdata/euccn.c: Likewise.
	* iconvdata/eucjp.c: Likewise.
	* iconvdata/euckr.c: Likewise.
	* iconvdata/euctw.c: Likewise.
	* iconvdata/iso6937.c: Likewise.
	* iconvdata/iso8859-1.c: Likewise.
	* iconvdata/jis0208.h: Likewise.
	* iconvdata/jis0212.c: Likewise.
	* iconvdata/jis0212.h: Likewise.
	* iconvdata/johab.c: Likewise.
	* iconvdata/ksc5601.h: Likewise.
	* iconvdata/sjis.c: Likewise.
	* iconvdata/t61.c: Likewise.
	* iconvdata/uhc.c: Likewise.

17 files changed, 129 insertions, 477 deletions

diff --git a/iconvdata/8bit-gap.c b/iconvdata/8bit-gap.c
index 1528cb6bf7..6c78ce5c24 100644
--- a/iconvdata/8bit-gap.c
+++ b/iconvdata/8bit-gap.c
@@ -20,8 +20,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <gconv.h>
-#include <inttypes.h>
-#include <stdlib.h>
+#include <stdint.h>
 #include <string.h>
 
 
@@ -35,54 +34,30 @@ struct gap
 /* Now we can include the tables.  */
 #include TABLES
 
-/* Direction of the transformation.  */
-enum direction
-{
-  illegal,
-  to_8bit,
-  from_8bit
-};
-
-struct s_8bit_data
-{
-  enum direction dir;
-};
+/* We use three objects to describe the operation mode.  */
+static int from_8bit_object;
+static int to_8bit_object;
 
 
 int
 gconv_init (struct gconv_step *step)
 {
   /* Determine which direction.  */
-  struct s_8bit_data *new_data;
-  enum direction dir;
-  int result;
-
   if (strcasestr (step->from_name, NAME) != NULL)
-    dir = from_8bit;
+    step->data = &from_8bit_object;
   else if (strcasestr (step->to_name, NAME) != NULL)
-    dir = to_8bit;
+    step->data = &to_8bit_object;
   else
-    dir = illegal;
-
-  result = GCONV_NOCONV;
-  if (dir != illegal
-      && ((new_data
-	   = (struct s_8bit_data *) malloc (sizeof (struct s_8bit_data)))
-	  != NULL))
-    {
-      new_data->dir = dir;
-      step->data = new_data;
-      result = GCONV_OK;
-    }
+    return GCONV_NOCONV;
 
-  return result;
+  return GCONV_OK;
 }
 
 
 void
 gconv_end (struct gconv_step *data)
 {
-  free (data->data);
+  /* Nothing to do.  */
 }
 
 
@@ -119,15 +94,13 @@ gconv (struct gconv_step *step, struct gconv_step_data *data,
     }
   else
     {
-      enum direction dir = ((struct s_8bit_data *) step->data)->dir;
-
       do_write = 0;
 
       do
 	{
 	  result = GCONV_OK;
 
-	  if (dir == from_8bit)
+	  if (step->data == &from_8bit_object)
 	    {
 	      size_t inchars = *inbufsize;
 	      size_t outwchars = data->outbufavail;
@@ -213,7 +186,7 @@ gconv (struct gconv_step *step, struct gconv_step_data *data,
 	  if (data->is_last)
 	    {
 	      /* This is the last step.  */
-	      result = (*inbufsize > (dir == from_8bit
+	      result = (*inbufsize > (step->data == &from_8bit_object
 				      ? 0 : sizeof (wchar_t) - 1)
 			? GCONV_FULL_OUTPUT : GCONV_EMPTY_INPUT);
 	      break;
diff --git a/iconvdata/8bit-generic.c b/iconvdata/8bit-generic.c
index 7f0bbae6b0..52cd540fb7 100644
--- a/iconvdata/8bit-generic.c
+++ b/iconvdata/8bit-generic.c
@@ -19,57 +19,32 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <gconv.h>
-#include <stdlib.h>
 #include <string.h>
 
-/* Direction of the transformation.  */
-enum direction
-{
-  illegal,
-  to_8bit,
-  from_8bit
-};
-
-struct s_8bit_data
-{
-  enum direction dir;
-};
+/* We use three objects to describe the operation mode.  */
+static int from_8bit_object;
+static int to_8bit_object;
 
 
 int
 gconv_init (struct gconv_step *step)
 {
   /* Determine which direction.  */
-  struct s_8bit_data *new_data;
-  enum direction dir;
-  int result;
-
   if (strcasestr (step->from_name, NAME) != NULL)
-    dir = from_8bit;
+    step->data = &from_8bit_object;
   else if (strcasestr (step->to_name, NAME) != NULL)
-    dir = to_8bit;
+    step->data = &to_8bit_object;
   else
-    dir = illegal;
+    return GCONV_NOCONV;
 
-  result = GCONV_NOCONV;
-  if (dir != illegal
-      && ((new_data
-	   = (struct s_8bit_data *) malloc (sizeof (struct s_8bit_data)))
-	  != NULL))
-    {
-      new_data->dir = dir;
-      step->data = new_data;
-      result = GCONV_OK;
-    }
-
-  return result;
+  return GCONV_OK;
 }
 
 
 void
 gconv_end (struct gconv_step *data)
 {
-  free (data->data);
+  /* Nothing to do.  */
 }
 
 
@@ -106,15 +81,13 @@ gconv (struct gconv_step *step, struct gconv_step_data *data,
     }
   else
     {
-      enum direction dir = ((struct s_8bit_data *) step->data)->dir;
-
       do_write = 0;
 
       do
 	{
 	  result = GCONV_OK;
 
-	  if (dir == from_8bit)
+	  if (step->data == &from_8bit_object)
 	    {
 	      size_t inchars = *inbufsize;
 	      size_t outwchars = data->outbufavail;
@@ -191,7 +164,7 @@ gconv (struct gconv_step *step, struct gconv_step_data *data,
 	  if (data->is_last)
 	    {
 	      /* This is the last step.  */
-	      result = (*inbufsize > (dir == from_8bit
+	      result = (*inbufsize > (step->data == &from_8bit_object
 				      ? 0 : sizeof (wchar_t) - 1)
 			? GCONV_FULL_OUTPUT : GCONV_EMPTY_INPUT);
 	      break;
diff --git a/iconvdata/big5.c b/iconvdata/big5.c
index 26ea6edc67..bfd14fd5bb 100644
--- a/iconvdata/big5.c
+++ b/iconvdata/big5.c
@@ -19,7 +19,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <gconv.h>
-#include <inttypes.h>
+#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 #include <wchar.h>
@@ -8412,53 +8412,29 @@ static const char from_ucs4_tab13[][2] =
 
 
 /* Direction of the transformation.  */
-enum direction
-{
-  illegal,
-  to_big5,
-  from_big5
-};
-
-struct big5_data
-{
-  enum direction dir;
-};
+static int to_big5_object;
+static int from_big5_object;
 
 
 int
 gconv_init (struct gconv_step *step)
 {
   /* Determine which direction.  */
-  struct big5_data *new_data;
-  enum direction dir;
-  int result;
-
   if (strcasestr (step->from_name, "BIG5") != NULL)
-    dir = from_big5;
+    step->data = &from_big5_object;
   else if (strcasestr (step->to_name, "BIG5") != NULL)
-    dir = to_big5;
+    step->data = &to_big5_object;
   else
-    dir = illegal;
-
-  result = GCONV_NOCONV;
-  if (dir != illegal
-      && ((new_data
-	   = (struct big5_data *) malloc (sizeof (struct big5_data)))
-	  != NULL))
-    {
-      new_data->dir = dir;
-      step->data = new_data;
-      result = GCONV_OK;
-    }
+    return GCONV_NOCONV;
 
-  return result;
+  return GCONV_OK;
 }
 
 
 void
 gconv_end (struct gconv_step *data)
 {
-  free (data->data);
+  /* Nothing to do.  */
 }
 
 
@@ -8492,15 +8468,13 @@ gconv (struct gconv_step *step, struct gconv_step_data *data,
     }
   else
     {
-      enum direction dir = ((struct big5_data *) step->data)->dir;
-
       do_write = 0;
 
       do
 	{
 	  result = GCONV_OK;
 
-	  if (dir == from_big5)
+	  if (step->data == &from_big5_object)
 	    {
 	      size_t inchars = *inbufsize;
 	      size_t outwchars = data->outbufavail;
@@ -8686,7 +8660,7 @@ gconv (struct gconv_step *step, struct gconv_step_data *data,
 	  if (data->is_last)
 	    {
 	      /* This is the last step.  */
-	      result = (*inbufsize > (dir == from_big5
+	      result = (*inbufsize > (step->data == &from_big5_object
 				      ? 0 : sizeof (wchar_t) - 1)
 			? GCONV_FULL_OUTPUT : GCONV_EMPTY_INPUT);
 	      break;
diff --git a/iconvdata/euccn.c b/iconvdata/euccn.c
index 108974a972..e8d909768b 100644
--- a/iconvdata/euccn.c
+++ b/iconvdata/euccn.c
@@ -20,59 +20,34 @@
 
 #include <gconv.h>
 #include <stdint.h>
-#include <stdlib.h>
 #include <string.h>
 #include <wchar.h>
 #include <gb2312.h>
 
 /* Direction of the transformation.  */
-enum direction
-{
-  illegal,
-  to_euccn,
-  from_euccn
-};
-
-struct euccn_data
-{
-  enum direction dir;
-};
+static int to_euccn_object;
+static int from_euccn_object;
 
 
 int
 gconv_init (struct gconv_step *step)
 {
   /* Determine which direction.  */
-  struct euccn_data *new_data;
-  enum direction dir;
-  int result;
-
   if (strcasestr (step->from_name, "EUC-CN") != NULL)
-    dir = from_euccn;
+    step->data = &from_euccn_object;
   else if (strcasestr (step->to_name, "EUC-CN") != NULL)
-    dir = to_euccn;
+    step->data = &to_euccn_object;
   else
-    dir = illegal;
+    return GCONV_NOCONV;
 
-  result = GCONV_NOCONV;
-  if (dir != illegal
-      && ((new_data
-	   = (struct euccn_data *) malloc (sizeof (struct euccn_data)))
-	  != NULL))
-    {
-      new_data->dir = dir;
-      step->data = new_data;
-      result = GCONV_OK;
-    }
-
-  return result;
+  return GCONV_OK;
 }
 
 
 void
 gconv_end (struct gconv_step *data)
 {
-  free (data->data);
+  /* Nothing to do.  */
 }
 
 
@@ -109,15 +84,13 @@ gconv (struct gconv_step *step, struct gconv_step_data *data,
     }
   else
     {
-      enum direction dir = ((struct euccn_data *) step->data)->dir;
-
       do_write = 0;
 
       do
 	{
 	  result = GCONV_OK;
 
-	  if (dir == from_euccn)
+	  if (step->data == &from_euccn_object)
 	    {
 	      size_t inchars = *inbufsize;
 	      size_t outwchars = data->outbufavail;
@@ -267,7 +240,7 @@ gconv (struct gconv_step *step, struct gconv_step_data *data,
 	  if (data->is_last)
 	    {
 	      /* This is the last step.  */
-	      result = (*inbufsize > (dir == from_euccn
+	      result = (*inbufsize > (step->data == &from_euccn_object
 				      ? 0 : sizeof (wchar_t) - 1)
 			? GCONV_FULL_OUTPUT : GCONV_EMPTY_INPUT);
 	      break;
diff --git a/iconvdata/eucjp.c b/iconvdata/eucjp.c
index caf24e27e0..4e82904c8f 100644
--- a/iconvdata/eucjp.c
+++ b/iconvdata/eucjp.c
@@ -20,7 +20,6 @@
 
 #include <gconv.h>
 #include <stdint.h>
-#include <stdlib.h>
 #include <string.h>
 #include <wchar.h>
 #include <jis0201.h>
@@ -28,53 +27,29 @@
 #include <jis0212.h>
 
 /* Direction of the transformation.  */
-enum direction
-{
-  illegal,
-  to_eucjp,
-  from_eucjp
-};
-
-struct eucjp_data
-{
-  enum direction dir;
-};
+static int to_eucjp_object;
+static int from_eucjp_object;
 
 
 int
 gconv_init (struct gconv_step *step)
 {
   /* Determine which direction.  */
-  struct eucjp_data *new_data;
-  enum direction dir;
-  int result;
-
   if (strcasestr (step->from_name, "EUC-JP") != NULL)
-    dir = from_eucjp;
+    step->data = &from_eucjp_object;
   else if (strcasestr (step->to_name, "EUC-JP") != NULL)
-    dir = to_eucjp;
+    step->data = &to_eucjp_object;
   else
-    dir = illegal;
+    return GCONV_NOCONV;
 
-  result = GCONV_NOCONV;
-  if (dir != illegal
-      && ((new_data
-	   = (struct eucjp_data *) malloc (sizeof (struct eucjp_data)))
-	  != NULL))
-    {
-      new_data->dir = dir;
-      step->data = new_data;
-      result = GCONV_OK;
-    }
-
-  return result;
+  return GCONV_OK;
 }
 
 
 void
 gconv_end (struct gconv_step *data)
 {
-  free (data->data);
+  /* Nothing to do.  */
 }
 
 
@@ -111,15 +86,13 @@ gconv (struct gconv_step *step, struct gconv_step_data *data,
     }
   else
     {
-      enum direction dir = ((struct eucjp_data *) step->data)->dir;
-
       do_write = 0;
 
       do
 	{
 	  result = GCONV_OK;
 
-	  if (dir == from_eucjp)
+	  if (step->data == &from_eucjp_object)
 	    {
 	      size_t inchars = *inbufsize;
 	      size_t outwchars = data->outbufavail;
@@ -311,7 +284,7 @@ gconv (struct gconv_step *step, struct gconv_step_data *data,
 	  if (data->is_last)
 	    {
 	      /* This is the last step.  */
-	      result = (*inbufsize > (dir == from_eucjp
+	      result = (*inbufsize > (step->data == &from_eucjp_object
 				      ? 0 : sizeof (wchar_t) - 1)
 			? GCONV_FULL_OUTPUT : GCONV_EMPTY_INPUT);
 	      break;
diff --git a/iconvdata/euckr.c b/iconvdata/euckr.c
index 62dd2c47bf..1dfa42dbcc 100644
--- a/iconvdata/euckr.c
+++ b/iconvdata/euckr.c
@@ -26,18 +26,8 @@
 #include <ksc5601.h>
 
 /* Direction of the transformation.  */
-enum direction
-{
-  illegal,
-  to_euckr,
-  from_euckr
-};
-
-struct euckr_data
-{
-  enum direction dir;
-};
-
+static int to_euckr_object;
+static int from_euckr_object;
 
 
 static inline void
@@ -66,36 +56,21 @@ int
 gconv_init (struct gconv_step *step)
 {
   /* Determine which direction.  */
-  struct euckr_data *new_data;
-  enum direction dir;
-  int result;
-
   if (strcasestr (step->from_name, "EUC-KR") != NULL)
-    dir = from_euckr;
+    step->data = &from_euckr_object;
   else if (strcasestr (step->to_name, "EUC-KR") != NULL)
-    dir = to_euckr;
+    step->data = &to_euckr_object;
   else
-    dir = illegal;
+    return GCONV_NOCONV;
 
-  result = GCONV_NOCONV;
-  if (dir != illegal
-      && ((new_data
-	   = (struct euckr_data *) malloc (sizeof (struct euckr_data)))
-	  != NULL))
-    {
-      new_data->dir = dir;
-      step->data = new_data;
-      result = GCONV_OK;
-    }
-
-  return result;
+  return GCONV_OK;
 }
 
 
 void
 gconv_end (struct gconv_step *data)
 {
-  free (data->data);
+  /* Nothing to do.  */
 }
 
 
@@ -132,15 +107,13 @@ gconv (struct gconv_step *step, struct gconv_step_data *data,
     }
   else
     {
-      enum direction dir = ((struct euckr_data *) step->data)->dir;
-
       do_write = 0;
 
       do
 	{
 	  result = GCONV_OK;
 
-	  if (dir == from_euckr)
+	  if (step->data == &from_euckr_object)
 	    {
 	      size_t inchars = *inbufsize;
 	      size_t outwchars = data->outbufavail;
@@ -281,7 +254,7 @@ gconv (struct gconv_step *step, struct gconv_step_data *data,
 	  if (data->is_last)
 	    {
 	      /* This is the last step.  */
-	      result = (*inbufsize > (dir == from_euckr
+	      result = (*inbufsize > (step->data == &from_euckr_object
 				      ? 0 : sizeof (wchar_t) - 1)
 			? GCONV_FULL_OUTPUT : GCONV_EMPTY_INPUT);
 	      break;
diff --git a/iconvdata/euctw.c b/iconvdata/euctw.c
index 33da1ce84c..f38db47946 100644
--- a/iconvdata/euctw.c
+++ b/iconvdata/euctw.c
@@ -20,60 +20,35 @@
 
 #include <gconv.h>
 #include <stdint.h>
-#include <stdlib.h>
 #include <string.h>
 #include <wchar.h>
 #include <cns11643l1.h>
 #include <cns11643.h>
 
 /* Direction of the transformation.  */
-enum direction
-{
-  illegal,
-  to_euctw,
-  from_euctw
-};
-
-struct euctw_data
-{
-  enum direction dir;
-};
+static int to_euctw_object;
+static int from_euctw_object;
 
 
 int
 gconv_init (struct gconv_step *step)
 {
   /* Determine which direction.  */
-  struct euctw_data *new_data;
-  enum direction dir;
-  int result;
-
   if (strcasestr (step->from_name, "EUC-TW") != NULL)
-    dir = from_euctw;
+    step->data = &from_euctw_object;
   else if (strcasestr (step->to_name, "EUC-TW") != NULL)
-    dir = to_euctw;
+    step->data = &to_euctw_object;
   else
-    dir = illegal;
+    return GCONV_NOCONV;
 
-  result = GCONV_NOCONV;
-  if (dir != illegal
-      && ((new_data
-	   = (struct euctw_data *) malloc (sizeof (struct euctw_data)))
-	  != NULL))
-    {
-      new_data->dir = dir;
-      step->data = new_data;
-      result = GCONV_OK;
-    }
-
-  return result;
+  return GCONV_OK;
 }
 
 
 void
 gconv_end (struct gconv_step *data)
 {
-  free (data->data);
+  /* Nothing to do.  */
 }
 
 
@@ -110,15 +85,13 @@ gconv (struct gconv_step *step, struct gconv_step_data *data,
     }
   else
     {
-      enum direction dir = ((struct euctw_data *) step->data)->dir;
-
       do_write = 0;
 
       do
 	{
 	  result = GCONV_OK;
 
-	  if (dir == from_euctw)
+	  if (step->data == &from_euctw_object)
 	    {
 	      size_t inchars = *inbufsize;
 	      size_t outwchars = data->outbufavail;
@@ -307,7 +280,7 @@ gconv (struct gconv_step *step, struct gconv_step_data *data,
 	  if (data->is_last)
 	    {
 	      /* This is the last step.  */
-	      result = (*inbufsize > (dir == from_euctw
+	      result = (*inbufsize > (step->data == &from_euctw_object
 				      ? 0 : sizeof (wchar_t) - 1)
 			? GCONV_FULL_OUTPUT : GCONV_EMPTY_INPUT);
 	      break;
diff --git a/iconvdata/iso6937.c b/iconvdata/iso6937.c
index 377eef5afc..30c3831a29 100644
--- a/iconvdata/iso6937.c
+++ b/iconvdata/iso6937.c
@@ -19,7 +19,6 @@
    Boston, MA