cp437.c

#include "cp.h"

char decode_point(unsigned long cp) {
    if (cp < 128)
	return (char)cp;

    switch (cp) {
    case 0x00A7: return 0x15; /* section sign */
    case 0x00E1: return 0xA0; /* a with acute */
    case 0x00E2: return 0x83; /* a with circumflex */
    case 0x00E9: return 0x82; /* e with acute */
    case 0x00F1: return 0xA4; /* n with tilde */

    case 0x2013: return 0xC4; /* en dash */
    case 0x2019: return '\'';  /* right single quote */

    case 0x2591: return 0xB0; /* block and box drawing glyphs */
    case 0x2592: return 0xB1;
    case 0x2593: return 0xB2;
    case 0x2502: return 0xB3;
    case 0x2524: return 0xB4;
    case 0x2561: return 0xB5;
    case 0x2562: return 0xB6;
    case 0x2556: return 0xB7;
    case 0x2555: return 0xB8;
    case 0x2563: return 0xB9;
    case 0x2551: return 0xBA;
    case 0x2557: return 0xBB;
    case 0x255D: return 0xBC;
    case 0x255C: return 0xBD;
    case 0x255B: return 0xBE;
    case 0x2510: return 0xBF;

    case 0x2514: return 0xC0;
    case 0x2534: return 0xC1;
    case 0x252C: return 0xC2;
    case 0x251C: return 0xC3;
    case 0x2500: return 0xC4;
    case 0x253C: return 0xC5;
    case 0x255E: return 0xC6;
    case 0x255F: return 0xC7;
    case 0x255A: return 0xC8;
    case 0x2554: return 0xC9;
    case 0x2569: return 0xCA;
    case 0x2566: return 0xCB;
    case 0x2560: return 0xCC;
    case 0x2550: return 0xCD;
    case 0x256C: return 0xCE;
    case 0x2567: return 0xCF;

    case 0x2568: return 0xD0;
    case 0x2564: return 0xD1;
    case 0x2565: return 0xD2;
    case 0x2559: return 0xD3;
    case 0x2558: return 0xD4;
    case 0x2552: return 0xD5;
    case 0x2553: return 0xD6;
    case 0x256B: return 0xD7;
    case 0x256A: return 0xD8;
    case 0x2518: return 0xD9;
    case 0x250C: return 0xDA;
    case 0x2588: return 0xDB;
    case 0x2584: return 0xDC;
    case 0x258C: return 0xDD;
    case 0x2590: return 0xDE;
    case 0x2580: return 0xDF;
    }

    return '?';
}