1 | /*****************************************************************************/ |
2 | /* */ |
3 | /* tgttrans.c */ |
4 | /* */ |
5 | /* Character set translation */ |
6 | /* */ |
7 | /* */ |
8 | /* */ |
9 | /* (C) 2000-2012, Ullrich von Bassewitz */ |
10 | /* Roemerstrasse 52 */ |
11 | /* D-70794 Filderstadt */ |
12 | /* EMail: uz@cc65.org */ |
13 | /* */ |
14 | /* */ |
15 | /* This software is provided 'as-is', without any expressed or implied */ |
16 | /* warranty. In no event will the authors be held liable for any damages */ |
17 | /* arising from the use of this software. */ |
18 | /* */ |
19 | /* Permission is granted to anyone to use this software for any purpose, */ |
20 | /* including commercial applications, and to alter it and redistribute it */ |
21 | /* freely, subject to the following restrictions: */ |
22 | /* */ |
23 | /* 1. The origin of this software must not be misrepresented; you must not */ |
24 | /* claim that you wrote the original software. If you use this software */ |
25 | /* in a product, an acknowledgment in the product documentation would be */ |
26 | /* appreciated but is not required. */ |
27 | /* 2. Altered source versions must be plainly marked as such, and must not */ |
28 | /* be misrepresented as being the original software. */ |
29 | /* 3. This notice may not be removed or altered from any source */ |
30 | /* distribution. */ |
31 | /* */ |
32 | /*****************************************************************************/ |
33 | |
34 | |
35 | |
36 | #include <string.h> |
37 | |
38 | /* common */ |
39 | #include "check.h" |
40 | #include "target.h" |
41 | #include "tgttrans.h" |
42 | |
43 | |
44 | |
45 | /*****************************************************************************/ |
46 | /* Data */ |
47 | /*****************************************************************************/ |
48 | |
49 | |
50 | |
51 | /* Translation table actually used. Default is no translation */ |
52 | static unsigned char Tab[256] = { |
53 | 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F, |
54 | 0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F, |
55 | 0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F, |
56 | 0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F, |
57 | 0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F, |
58 | 0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5A,0x5B,0x5C,0x5D,0x5E,0x5F, |
59 | 0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F, |
60 | 0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F, |
61 | 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, |
62 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, |
63 | 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, |
64 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, |
65 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, |
66 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, |
67 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, |
68 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF, |
69 | }; |
70 | |
71 | |
72 | |
73 | /*****************************************************************************/ |
74 | /* Code */ |
75 | /*****************************************************************************/ |
76 | |
77 | |
78 | |
79 | void TgtTranslateInit (void) |
80 | /* Initialize the translation tables */ |
81 | { |
82 | /* Copy the translation for the selected target */ |
83 | memcpy (Tab, GetTargetProperties (Target)->CharMap, sizeof (Tab)); |
84 | } |
85 | |
86 | |
87 | |
88 | int TgtTranslateChar (int C) |
89 | /* Translate one character from the source character set into the target |
90 | ** system character set. |
91 | */ |
92 | { |
93 | /* Translate */ |
94 | return Tab[C & 0xFF]; |
95 | } |
96 | |
97 | |
98 | |
99 | void TgtTranslateBuf (void* Buf, unsigned Len) |
100 | /* Translate a buffer of the given length from the source character set into |
101 | ** the target system character set. |
102 | */ |
103 | { |
104 | /* Translate */ |
105 | unsigned char* B = (unsigned char*)Buf; |
106 | while (Len--) { |
107 | *B = Tab[*B]; |
108 | ++B; |
109 | } |
110 | } |
111 | |
112 | |
113 | |
114 | void TgtTranslateStrBuf (StrBuf* Buf) |
115 | /* Translate a string buffer from the source character set into the target |
116 | ** system character set. |
117 | */ |
118 | { |
119 | TgtTranslateBuf (SB_GetBuf (Buf), SB_GetLen (Buf)); |
120 | } |
121 | |
122 | |
123 | |
124 | void TgtTranslateSet (unsigned Index, unsigned char C) |
125 | /* Set the translation code for the given character */ |
126 | { |
127 | CHECK (Index < sizeof (Tab)); |
128 | Tab[Index] = C; |
129 | } |
130 | |