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patch for lib/Pod/Escapes.pm for EBCDIC platform

From:
Chun Bing Ge
Date:
October 24, 2007 23:05
Subject:
patch for lib/Pod/Escapes.pm for EBCDIC platform
Message ID:
OFAFA4126C.60C38FC4-ON4825737F.0020F982-4825737F.00216A78@IBMCN
Hi,

Here is the patch below. Any question, pls let me know, thanks.


--- /home/spring/perl/perl-current/lib/Pod/Escapes.pm   2006-06-14 
03:29:17.000000000 +0800
+++ /home/spring/patch/chgfile/lib-Pod-Escapes.pm       2007-09-30 
10:20:56.000000000 +0800
@@ -30,6 +29,42 @@
   $FAR_CHAR_NUMBER
   $NOT_ASCII
 );
+#add by Porting Tools
+my @TO_EBCDIC=(
+0x00, 0x01, 0x02, 0x03, 0x37, 0x2d, 0x2e, 0x2f,
+0x16, 0x05, 0x15, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+0x10, 0x11, 0x12, 0x13, 0x3c, 0x3d, 0x32, 0x26,
+0x18, 0x19, 0x3f, 0x27, 0x1c, 0x1d, 0x1e, 0x1f,
+0x40, 0x5a, 0x7f, 0x7b, 0x5b, 0x6c, 0x50, 0x7d,
+0x4d, 0x5d, 0x5c, 0x4e, 0x6b, 0x60, 0x4b, 0x61,
+0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+0xf8, 0xf9, 0x7a, 0x5e, 0x4c, 0x7e, 0x6e, 0x6f,
+0x7c, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
+0xc8, 0xc9, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6,
+0xd7, 0xd8, 0xd9, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6,
+0xe7, 0xe8, 0xe9, 0xad, 0xe0, 0xbd, 0x5f, 0x6d,
+0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
+0x97, 0x98, 0x99, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6,
+0xa7, 0xa8, 0xa9, 0xc0, 0x4f, 0xd0, 0xa1, 0x07,
+0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x06, 0x17,
+0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x09, 0x0a, 0x1b,
+0x30, 0x31, 0x1a, 0x33, 0x34, 0x35, 0x36, 0x08,
+0x38, 0x39, 0x3a, 0x3b, 0x04, 0x14, 0x3e, 0xff,
+0x41, 0xaa, 0x4a, 0xb1, 0x9f, 0xb2, 0x6a, 0xb5,
+0xbb, 0xb4, 0x9a, 0x8a, 0xb0, 0xca, 0xaf, 0xbc,
+0x90, 0x8f, 0xea, 0xfa, 0xbe, 0xa0, 0xb6, 0xb3,
+0x9d, 0xda, 0x9b, 0x8b, 0xb7, 0xb8, 0xb9, 0xab,
+0x64, 0x65, 0x62, 0x66, 0x63, 0x67, 0x9e, 0x68,
+0x74, 0x71, 0x72, 0x73, 0x78, 0x75, 0x76, 0x77,
+0xac, 0x69, 0xed, 0xee, 0xeb, 0xef, 0xec, 0xbf,
+0x80, 0xfd, 0xfe, 0xfb, 0xfc, 0xba, 0xae, 0x59,
+0x44, 0x45, 0x42, 0x46, 0x43, 0x47, 0x9c, 0x48,
+0x54, 0x51, 0x52, 0x53, 0x58, 0x55, 0x56, 0x57,
+0x8c, 0x49, 0xcd, 0xce, 0xcb, 0xcf, 0xcc, 0xe1,
+0x70, 0xdd, 0xde, 0xdb, 0xdc, 0x8d, 0x8e, 0xdf,
+);
+#end of Porting Tools
 
 $FAR_CHAR = "?" unless defined $FAR_CHAR;
 $FAR_CHAR_NUMBER = ord($FAR_CHAR) unless defined $FAR_CHAR_NUMBER;
@@ -48,29 +83,19 @@
     $in = hex $1;
   } # else it's decimal, or named
 
-  if($NOT_ASCII) {
-    # We're in bizarro world of not-ASCII!
-    # Cope with US-ASCII codes, use fallbacks for Latin-1, or use 
FAR_CHAR.
-    unless($in =~ m/^\d+$/s) {
-      # It's a named character reference.  Get its numeric Unicode value.
-      $in = $Name2character{$in};
-      return undef unless defined $in;  # (if there's no such name)
-      $in = ord $in; # (All ents must be one character long.)
-        # ...So $in holds the char's US-ASCII numeric value, which we'll
-        #  now go get the local equivalent for.
-    }
-
-    # It's numeric, whether by origin or by mutation from a known name
-    return $Code2USASCII{$in} # so "65" => "A" everywhere
-        || $Latin1Code_to_fallback{$in} # Fallback.
-        || $FAR_CHAR; # Fall further back
-  }
- 
   # Normal handling:
   if($in =~ m/^\d+$/s) {
     if($] < 5.007  and  $in > 255) { # can't be trusted with Unicode
       return $FAR_CHAR;
     } else {
+       if ($NOT_ASCII) {
+               if ($in > 255) {
+          return $Name2character{$in};
+               }
+               else {
+          return chr($in);
+               }
+       }
       return chr($in);
     }
   } else {
@@ -93,7 +118,18 @@
   if($in =~ m/^\d+$/s) {
     return 0 + $in;
   } else {
-    return $Name2character_number{$in}; # returns undef if unknown
+       if ($NOT_ASCII) {
+               if ($Name2character_number{$in} > 256) {
+       return $Name2character_number{$in}; # returns ASCII's value
+               }
+                elsif ($Name2character_number{$in}) {
+      return $TO_EBCDIC[$Name2character_number{$in}]; # returns EBCDIC's 
value if known
+                }
+      return undef; # returns undef if unknown
+       }
+       else {
+      return $Name2character_number{$in}; # returns undef if unknown
+       }
   }
 }
 
@@ -371,7 +407,6 @@
  'euro'     , 8364,
 );
 
-
 # Fill out %Name2character...
 {
   %Name2character = ();
@@ -382,18 +417,21 @@
       # substitute for Unicode characters, for perls
       #  that can't reliable handle them
     } else {
-      $Name2character{$name} = chr $number;
+       if ($NOT_ASCII) {
+               if ($number > 255) {
+          $Name2character{$name} = undef;
+               }
+               else {
+          $Name2character{$name} = chr $TO_EBCDIC[$number];
+        }
+       }
+       else {
+        $Name2character{$name} = chr $number;
+      }
       # normal case
     }
   }
   # So they resolve 'right' even in EBCDIC-land
-  $Name2character{'lt'  }   = '<';
-  $Name2character{'gt'  }   = '>';
-  $Name2character{'quot'}   = '"';
-  $Name2character{'amp' }   = '&';
-  $Name2character{'apos'}   = "'";
-  $Name2character{'sol' }   = '/';
-  $Name2character{'verbar'} = '|';
 }
 
 
#--------------------------------------------------------------------------

Ge, Chun Bing
空山新雨后,天气晚来秋



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