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compkeys.cpp

/*
 * compkeys.cpp
 *
 *    Copyright (c) 2008, eFTE SF Group (see AUTHORS file)
 *    Copyright (c) 1998 by István Váradi
 *
 *    You may distribute under the terms of either the GNU General Public
 *    License or the Artistic License, as specified in the README file.
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "console.h"
#include "conkbd.h"

#define FTESL_KBDCTRL(x)    ( x-'a'+ 1)

static unsigned get_linux_keycode(TKeyCode kcode) {
    static unsigned lnxkeycodes[] = {
        /* 32 */
        57,  2, 40,  4,  5,  6,  8, 40,

        /* 40 */
        10, 11,  9, 13, 51, 12, 52, 53,

        /* 48 */
        11,  2,  3,  4,  5,  6,  7,  8,

        /* 56 */
        9 , 10, 39, 39, 51, 13, 52, 53,

        /* 64 */
        3 , 30, 48, 46, 32, 18, 33, 34,

        /* 72 */
        35, 23, 36, 37, 38, 50, 49, 24,

        /* 80 */
        25, 16, 19, 31, 20, 22, 47, 17,

        /* 88 */
        45, 21, 44, 26, 86, 27,  7, 12,

        /* 96 */
        43, 30, 48, 46, 32, 18, 33, 34,

        /* 104 */
        35, 23, 36, 37, 38, 50, 49, 24,

        /* 112 */
        25, 16, 19, 31, 20, 22, 47, 17,

        /* 120 */
        45, 21, 44, 26, 86, 27, 43,  0,
    };

    TKeyCode        key = keyCode(kcode) | (kcode & kfGray);

    switch (key) {
    case kbF1:
    case kbF2:
    case kbF3:
    case kbF4:
    case kbF5:
    case kbF6:
    case kbF7:
    case kbF8:
    case kbF9:
    case kbF10:
        return 59 + key - kbF1;
        break;
    case kbF11:
        return 87;
        break;
    case kbF12:
        return 88;
        break;
    case kbHome:
        return 102;
        break;
    case kbEnd:
        return 107;
        break;
    case kbPgUp:
        return 104;
        break;
    case kbPgDn:
        return 109;
        break;
    case kbIns:
        return 110;
        break;
    case kbDel:
        return 111;
        break;
    case kbUp:
        return 103;
        break;
    case kbDown:
        return 108;
        break;
    case kbLeft:
        return 105;
        break;
    case kbRight:
        return 106;
        break;
    case kbEnter:
        return 28;
        break;
    case kbEsc:
        return 1;
        break;
    case kbBackSp:
        return 14;
        break;
    case kbSpace:
        return 57;
        break;
    case kbTab:
        return 15;
        break;
    case kbCenter:
        return 76;
        break;
    case kfGray | '/':
        return 98;
        break;
    case kfGray | '*':
        return 55;
        break;
    case kfGray | '+':
        return 78;
        break;
    case kfGray | '-':
        return 74;
        break;
    case kfGray | kbEnter:
        return 96;
        break;
    case kfGray | '.':
        return 83;
        break;
    case kfGray | '7':
    case kfGray | kbHome:
        return 71;
        break;
    case kfGray | '8':
    case kfGray | kbUp:
        return 72;
        break;
    case kfGray | '9':
    case kfGray | kbPgUp:
        return 73;
        break;
    case kfGray | '4':
    case kfGray | kbLeft:
        return 75;
        break;
    case kfGray | '5':
        return 76;
        break;
    case kfGray | '6':
    case kfGray | kbRight:
        return 77;
        break;
    case kfGray | '1':
    case kfGray | kbEnd:
        return 79;
        break;
    case kfGray | '2':
    case kfGray | kbDown:
        return 80;
        break;
    case kfGray | '3':
    case kfGray | kbPgDn:
        return 81;
        break;
    default:
        if (key < 128 && key > 32) return lnxkeycodes[key-32];
        else return 0;
    }
}

typedef struct keymapper {
    TKeyCode        kcode;
    const char*     kname;
} keymapper;

static keymapper speckeymap[] = {
    { kbHome,   "Home"   },
    { kbEnd,    "End"    },
    { kbPgUp,   "PgUp"   },
    { kbPgDn,   "PgDn"   },
    { kbIns,    "Ins"    },
    { kbDel,    "Del"    },
    { kbUp,     "Up"     },
    { kbDown,   "Down"   },
    { kbLeft,   "Left"   },
    { kbRight,  "Right"  },
    { kbEnter,  "Enter"  },
    { kbEsc,    "Esc"    },
    { kbBackSp, "BackSp" },
    { kbSpace,  "Space"  },
    { kbTab,    "Tab"    },
    { kbCenter, "Center" },
};

static TKeyCode ftesl_getkeycode(const char* key) {
    TKeyCode        kcode = 0;

    if ((*key) == '\0') return 0;

    while (*(key + 1) == '+') {
        switch (*key) {
        case 'A':
            kcode |= kfAlt;
            break;
        case 'C':
            kcode |= kfCtrl;
            break;
        case 'S':
            kcode |= kfShift;
            break;
        case 'G':
            kcode |= kfGray;
            break;
        default:
            return 0;
            break;
        }
        key += 2;
    }

    if ((*key) == '\0') return 0;

    if (*(key + 1) == '\0') {
        kcode |= *(const unsigned char *)key;
        return kcode;
    }

    for (unsigned i = 0; i < sizeof(speckeymap) / sizeof(keymapper); i++) {
        if (!strcmp(key, speckeymap[i].kname)) {
            kcode |= speckeymap[i].kcode;
            return kcode;
        }
    }

    if (*key == 'F') {
        key++;
        if (*key >= '1' && *key <= '9') {
            if (*key == '1' && *(key + 1) != '\0') {
                key++;
                switch (*key) {
                case '1':
                    kcode |= kbF11;
                    break;
                case '2':
                    kcode |= kbF12;
                    break;
                default:
                    return 0;
                    break;
                }
                return kcode;
            }
            kcode |= kbF1 + (*key - '1');
            return kcode;
        }
    }

    return 0;
}

static int ftesl_get_ctrlcode(TKeyCode key) {
    TKeyCode        kcode = keyCode(key);

    switch (kcode) {
    case kbUp:
        return FTESL_KBDCTRL('u');
    case kbDown:
        return FTESL_KBDCTRL('d');
    case kbLeft:
        return FTESL_KBDCTRL('l');
    case kbRight:
        return FTESL_KBDCTRL('r');
    case kbCenter:
        return FTESL_KBDCTRL('x');
    case kbHome:
        return FTESL_KBDCTRL('b');
    case kbEnd:
        return FTESL_KBDCTRL('e');
    case kbPgUp:
        return FTESL_KBDCTRL('p');
    case kbPgDn:
        return FTESL_KBDCTRL('n');
    case kbIns:
        return FTESL_KBDCTRL('q');
    case kbDel:
        return FTESL_KBDCTRL('z');
    case kbBackSp:
        return FTESL_KBDCTRL('h');
    case kbTab:
        return FTESL_KBDCTRL('i');
    case kbEnter:
        return FTESL_KBDCTRL('m');
    }
    if (kcode >= kbF1 && kcode <= kbF12) return FTESL_KBDCTRL('f');
    else return (int)kcode;

}


int main(int argc, char* argv[]) {
    FILE*           fin;
    FILE*           fout;
    char            finname[255];
    char            foutname[255];
    char            linebuf[256];
    char*           lptr;
    char            keyspecbuf[32];
    char*           bufptr;
    int             err = 0;
    unsigned        linecnt = 0;
    unsigned        strcnt = 0;
    //int             opt;

    finname[0] = '\0';
    foutname[0] = '\0';

    printf("Linux keymap compiler for SLang eFTE, Copyright (c) 1998 by István Váradi\n\n");

    if (argc < 3) {
        fprintf(stderr, "Usage: compkeys infile outfile\n\n");
        fprintf(stderr, "    where:\n");
        fprintf(stderr, "      infile:     the file with the list of the keys\n");
        fprintf(stderr, "      outfile:    the name of the output keymap file\n");
        exit(-2);
    }

    strcpy(finname,  argv[1]);
    strcpy(foutname, argv[2]);

    fin = fopen(finname, "rt");

    if (fin == NULL) {
        fprintf(stderr, "Can't open input file '%s' for reading.\n", finname);
        return -1;
    }

    fout = fopen(foutname, "wb");

    if (fout == NULL) {
        fprintf(stderr, "Can't open output file '%s' for writing.\n", foutname);
        fclose(fin);
        return -1;
    }


    printf("Compiling from '%s' into '%s'.\n", finname, foutname);

    fprintf(fout, "#############################\n");
    fprintf(fout, "# Keytable to use with e'FTE #\n");
    fprintf(fout, "#  generated by 'compkeys'  #\n");
    fprintf(fout, "#############################\n\n");

    err = 0;
    while (!err && fgets(linebuf, sizeof(linebuf), fin) == linebuf) {
        linecnt++;
        lptr  = linebuf;
        while (!err) {
            while (*lptr != '\0' && strchr(" \t", *lptr) != NULL) lptr++;
            if (*lptr == '#' || *lptr == '\0' || *lptr == '\n') break;

            bufptr = keyspecbuf;

            while (*lptr != '\0' && strchr(" \t\n", *lptr) == NULL)
                *(bufptr++) = *(lptr++);
            *(bufptr++) = '\0';

            TKeyCode    kcode = ftesl_getkeycode(keyspecbuf), kcode1;

            if (kcode == 0) {
                err = 2;
            } else {

                fprintf(fout, "\n# %s\n", keyspecbuf);
                if (kcode&kfShift) fprintf(fout, "shift ");
                if (kcode&kfCtrl)  fprintf(fout, "control ");
                if (kcode&kfAlt)   fprintf(fout, "alt ");
                fprintf(fout, "keycode %3u = F%u\n",
                        get_linux_keycode(kcode), 100 + strcnt);
                fprintf(fout, "string F%u = \"\\033", 100 + strcnt);
                if (kcode&kfShift) fprintf(fout, "\\023");
                if (kcode&kfCtrl)  fprintf(fout, "\\003");
                if (kcode&kfAlt)   fprintf(fout, "\\001");

                int    ccode = ftesl_get_ctrlcode(kcode);
                fprintf(fout, "\\%03o", ccode);


                if (ccode == FTESL_KBDCTRL('f')) {
                    kcode1 = keyCode(kcode);
                    switch (kcode1) {
                    case kbF1:
                    case kbF2:
                    case kbF3:
                    case kbF4:
                    case kbF5:
                    case kbF6:
                    case kbF7:
                    case kbF8:
                    case kbF9:
                        fprintf(fout, "%c", (int)'1' + int(kcode1 - kbF1));
                        break;
                    case kbF10:
                        fprintf(fout, "0");
                        break;
                    case kbF11:
                        fprintf(fout, "a");
                        break;
                    case kbF12:
                        fprintf(fout, "b");
                        break;
                    }
                }

                fprintf(fout, "\"\n");
                strcnt++;
            }
        }
    }

    fclose(fout);
    fclose(fin);

    if (err) {
        fprintf(stderr, "line %u: ", linecnt);
        switch (err) {
        case 1:
            fprintf(stderr, "syntax error");
            break;
        case 2:
            fprintf(stderr, "invalid key specification: '%s'",
                    keyspecbuf);
        }
        fprintf(stderr, "\n");
        remove(foutname);
    } else {
        printf("\nDone.\n");
    }

    if (err) return -1;
    else return 0;
}

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