Allow to set character translations at compile time

git-svn-id: svn://svn.cc65.org/cc65/trunk@1160 b7a2c559-68d2-44c3-8de9-860c34a00d81

diff --git a/src/common/tgttrans.c b/src/common/tgttrans.c
index 4a53fea3eba5a954cb07211b93fc4e6aef2a5ed6..e34ce30ab15605f5219db840fe45cfe63d3ad641 100644 (file)
--- a/src/common/tgttrans.c
+++ b/src/common/tgttrans.c
@@ -6,10 +6,10 @@
 /*                                                                           */
 /*                                                                           */
 /*                                                                           */
-/* (C) 2000     Ullrich von Bassewitz                                        */
-/*              Wacholderweg 14                                              */
-/*              D-70597 Stuttgart                                            */
-/* EMail:       uz@musoftware.de                                             */
+/* (C) 2000-2002 Ullrich von Bassewitz                                       */
+/*               Wacholderweg 14                                             */
+/*               D-70597 Stuttgart                                           */
+/* EMail:        uz@musoftware.de                                            */
 /*                                                                           */
 /*                                                                           */
 /* This software is provided 'as-is', without any expressed or implied       */
@@ -33,18 +33,41 @@
 
 
 
+#include <string.h>
+
 #include "abend.h"
+#include "check.h"
 #include "target.h"
 #include "tgttrans.h"
 
 
 
 /*****************************************************************************/
-/*                                  Data                                    */
+/*                                  Data                                    */
 /*****************************************************************************/
 
 
 
+/* Translation table with direct (no) translation */
+static unsigned char CTNone[256] = {
+    0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,
+    0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,
+    0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,
+    0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,
+    0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,
+    0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5A,0x5B,0x5C,0x5D,0x5E,0x5F,
+    0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
+    0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,
+    0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,
+    0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,
+    0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,
+    0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF,
+    0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,
+    0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,
+    0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
+    0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,
+};
+
 /* Translation table ISO-8859-1 -> ATASCII */
 static const unsigned char CTAtari [256] = {
     0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x7E,0x08,0x7F,0x9B,0x0B,0x7D,0x0D,0x0E,0x0F,
@@ -62,7 +85,7 @@ static const unsigned char CTAtari [256] = {
     0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,
     0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,
     0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
-    0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF
+    0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,
 };
 
 /* Translation table ISO-8859-1 -> PETSCII */
@@ -82,16 +105,16 @@ static const unsigned char CTPET [256] = {
     0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
     0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,
     0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
-    0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF
+    0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,
 };
 
-/* Pointer to translation table */
-static const unsigned char* Tab = 0;
+/* Translation table actually used */
+static unsigned char Tab[256];
 
 
 
 /*****************************************************************************/
-/*                                          Code                                    */
+/*                                          Code                                    */
 /*****************************************************************************/
 
 
@@ -100,19 +123,19 @@ void TgtTranslateInit (void)
 /* Initialize the translation tables */
 {
     switch (Target) {
-       case TGT_NONE:                          break;
-       case TGT_ATARI:         Tab = CTAtari;  break;
-       case TGT_C64:           Tab = CTPET;    break;
-       case TGT_C128:          Tab = CTPET;    break;
-       case TGT_ACE:           Tab = CTPET;    break;
-       case TGT_PLUS4:         Tab = CTPET;    break;
-               case TGT_CBM510:        Tab = CTPET;    break;
-       case TGT_CBM610:        Tab = CTPET;    break;
-       case TGT_PET:           Tab = CTPET;    break;
-       case TGT_BBC:                           break;
-       case TGT_APPLE2:                        break;
-       case TGT_GEOS:                          break;
-       case TGT_LUNIX:                         break;
+               case TGT_NONE:          memcpy (Tab, CTNone, sizeof (Tab));     break;
+       case TGT_ATARI:         memcpy (Tab, CTAtari, sizeof (Tab));    break;
+       case TGT_C64:           memcpy (Tab, CTPET, sizeof (Tab));      break;
+       case TGT_C128:          memcpy (Tab, CTPET, sizeof (Tab));      break;
+       case TGT_ACE:           memcpy (Tab, CTPET, sizeof (Tab));      break;
+       case TGT_PLUS4:         memcpy (Tab, CTPET, sizeof (Tab));      break;
+               case TGT_CBM510:        memcpy (Tab, CTPET, sizeof (Tab));      break;
+       case TGT_CBM610:        memcpy (Tab, CTPET, sizeof (Tab));      break;
+       case TGT_PET:           memcpy (Tab, CTPET, sizeof (Tab));      break;
+       case TGT_BBC:           memcpy (Tab, CTNone, sizeof (Tab));     break;
+       case TGT_APPLE2:        memcpy (Tab, CTNone, sizeof (Tab));     break;
+       case TGT_GEOS:          memcpy (Tab, CTNone, sizeof (Tab));     break;
+       case TGT_LUNIX:         memcpy (Tab, CTNone, sizeof (Tab));     break;
        default:
            AbEnd ("Internal error: Target system unknown (%d)", Target);
     }
@@ -126,8 +149,7 @@ int TgtTranslateChar (int C)
  */
 {
     /* Translate */
-    C &= 0xFF;
-    return Tab? Tab[C] : C;
+    return Tab[C & 0xFF];
 }
 
 
@@ -138,12 +160,10 @@ char* TgtTranslateStr (char* S)
  */
 {
     /* Translate */
-    if (Tab) {
-               unsigned char* T = (unsigned char*)S;
-       while (*T) {
-           *T = Tab[*T];
-           ++T;
-       }
+    unsigned char* T = (unsigned char*)S;
+    while (*T) {
+       *T = Tab[*T];
+       ++T;
     }
 
     /* Return the argument string */
@@ -158,14 +178,21 @@ void TgtTranslateBuf (void* Buf, unsigned Len)
  */
 {
     /* Translate */
-    if (Tab) {
-               unsigned char* B = (unsigned char*)Buf;
-       while (Len--) {
-           *B = Tab[*B];
-           ++B;
-       }
+    unsigned char* B = (unsigned char*)Buf;
+    while (Len--) {
+       *B = Tab[*B];
+       ++B;
     }
 }
 
 
 
+void TgtTranslateSet (unsigned Index, unsigned char C)
+/* Set the translation code for the given character */
+{
+    CHECK (Index > 0 && Index < sizeof (Tab));
+    Tab[Index] = C;
+}
+
+
+

diff --git a/src/common/tgttrans.h b/src/common/tgttrans.h
index e11d80adb51634188b2cd795920f122a709abc4c..9adb96e320f98c6856590e877031821aa37b7ccf 100644 (file)
--- a/src/common/tgttrans.h
+++ b/src/common/tgttrans.h
@@ -6,10 +6,10 @@
 /*                                                                           */
 /*                                                                           */
 /*                                                                           */
-/* (C) 2000     Ullrich von Bassewitz                                        */
-/*              Wacholderweg 14                                              */
-/*              D-70597 Stuttgart                                            */
-/* EMail:       uz@musoftware.de                                             */
+/* (C) 2000-2002 Ullrich von Bassewitz                                       */
+/*               Wacholderweg 14                                             */
+/*               D-70597 Stuttgart                                           */
+/* EMail:        uz@musoftware.de                                            */
 /*                                                                           */
 /*                                                                           */
 /* This software is provided 'as-is', without any expressed or implied       */
@@ -62,6 +62,9 @@ void TgtTranslateBuf (void* Buf, unsigned Len);
  * the target system character set.
  */
 
+void TgtTranslateSet (unsigned Index, unsigned char C);
+/* Set the translation code for the given character */
+
 
 
 /* End of tgttrans.h */