From 0638ce2087ab421f9da1827aab65b3520cf1ca0e Mon Sep 17 00:00:00 2001
From: tomo <tomo>
Date: Sat, 9 Aug 2003 08:08:52 +0000
Subject: [PATCH] (chise_char_id_parse_c_string): New function.
 (chise_dt_get_char): Use `chise_char_id_parse_c_string'.
 (chise_ft_iterate): New function.

---
 chise.c |  160 ++++++++++++++++++++++++++++++++++++++-------------------------
 1 file changed, 97 insertions(+), 63 deletions(-)

diff --git a/chise.c b/chise.c
index 3397991..63c104b 100644
--- a/chise.c
+++ b/chise.c
@@ -22,6 +22,75 @@ strnlen (register const char *s, register int maxlen)
 
 #define xzero(lvalue) ((void) memset (&(lvalue), '\0', sizeof (lvalue)))
 
+CHISE_Char_ID
+chise_char_id_parse_c_string (unsigned char *str, int len)
+{
+  int i = 0;
+
+  if ( (len >= 2) && (str[i++] == '?') )
+    {
+      unsigned char c = str[i++];
+      int counter;
+      CHISE_Char_ID cid;
+
+      if (c == '\\')
+	{
+	  if (len < 3)
+	    return -1;
+	  c = str[i++];
+	  if (c == '^')
+	    {
+	      if (len < 4)
+		return -1;
+	      c = str[i++];
+	      if (c == '?')
+		return 0x7F;
+	      else
+		return c & (0x80 | 0x1F);
+	    }
+	}
+      if ( c < 0xC0 )
+	{
+	  cid = c;
+	  counter = 0;
+	}
+      else if ( c < 0xE0 )
+	{
+	  cid = c & 0x1f;
+	  counter = 1;
+	}
+      else if ( c < 0xF0 )
+	{
+	  cid = c & 0x0f;
+	  counter = 2;
+	}
+      else if ( c < 0xF8 )
+	{
+	  cid = c & 0x07;
+	  counter = 3;
+	}
+      else if ( c < 0xFC )
+	{
+	  cid = c & 0x03;
+	  counter = 4;
+	}
+      else
+	{
+	  cid = c & 0x01;
+	  counter = 5;
+	}
+
+      if (counter + 2 <= len)
+	{
+	  int j;
+
+	  for (j = 0; j < counter; j++)
+	    cid = (cid << 6) | (str[j + i] & 0x3F);
+	  return cid;
+	}
+    }
+  return -1;
+}
 
 int
 chise_open_data_source (CHISE_DS *ds, CHISE_DS_Type type, char *location)
@@ -74,70 +143,8 @@ chise_dt_get_char (CHISE_Decoding_Table *db, int code_point)
       unsigned char *str
 	= (unsigned char *)chise_value_data (&valdatum);
       int len = strnlen (str, chise_value_size (&valdatum));
-      int i = 0;
 
-      if ( (len >= 2) && (str[i++] == '?') )
-	{
-	  unsigned char c = str[i++];
-	  int counter;
-	  CHISE_Char_ID cid;
-
-	  if (c == '\\')
-	    {
-	      if (len < 3)
-		return -1;
-	      c = str[i++];
-	      if (c == '^')
-		{
-		  if (len < 4)
-		    return -1;
-		  c = str[i++];
-		  if (c == '?')
-		    return 0x7F;
-		  else
-		    return c & (0x80 | 0x1F);
-		}
-	    }
-	  if ( c < 0xC0 )
-	    {
-	      cid = c;
-	      counter = 0;
-	    }
-	  else if ( c < 0xE0 )
-	    {
-	      cid = c & 0x1f;
-	      counter = 1;
-	    }
-	  else if ( c < 0xF0 )
-	    {
-	      cid = c & 0x0f;
-	      counter = 2;
-	    }
-	  else if ( c < 0xF8 )
-	    {
-	      cid = c & 0x07;
-	      counter = 3;
-	    }
-	  else if ( c < 0xFC )
-	    {
-	      cid = c & 0x03;
-	      counter = 4;
-	    }
-	  else
-	    {
-	      cid = c & 0x01;
-	      counter = 5;
-	    }
-
-	  if (counter + 2 <= len)
-	    {
-	      int j;
-
-	      for (j = 0; j < counter; j++)
-		cid = (cid << 6) | (str[j + i] & 0x3F);
-	      return cid;
-	    }
-	}
+      return chise_char_id_parse_c_string (str, len);
     }
   return -1;
 }
@@ -280,6 +287,33 @@ int chise_ft_get_value (CHISE_Feature_Table *db,
     chise_get_attribute_table (db, key_buf, valdatum);
 }
 
+void
+chise_ft_iterate (CHISE_Feature_Table *dbp,
+		  int (*func) (CHISE_Feature_Table *db,
+			       CHISE_Char_ID cid, CHISE_Value *valdatum))
+{
+  DBT keydatum, valdatum;
+  DBC *dbcp;
+  int status;
+
+  xzero (keydatum);
+  xzero (valdatum);
+
+  status = dbp->cursor (dbp, NULL, &dbcp, 0);
+  for (status = dbcp->c_get (dbcp, &keydatum, &valdatum, DB_FIRST);
+       status == 0;
+       status = dbcp->c_get (dbcp, &keydatum, &valdatum, DB_NEXT))
+    {
+      unsigned char *key_str = (unsigned char *)keydatum.data;
+      int key_len = strnlen (key_str, keydatum.size);
+      CHISE_Char_ID key = chise_char_id_parse_c_string (key_str, key_len);
+      int ret;
+
+      if (ret = func (dbp, key, &valdatum))
+	break;
+    }
+  dbcp->c_close (dbcp);
+}
 
 int
 chise_open_attribute_table (CHISE_Attribute_Table **db,
-- 
1.7.10.4