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/*
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/*
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 * This program creates a header file for the Svarog386 installer, that
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 * This program creates a header file for the Svarog386 installer, that
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 * contains the list of all supported keyboard layouts, along with a way to
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 * contains the list of all supported keyboard layouts, along with a way to
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 * select sets of keyboard layouts that apply to only a specific region.
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 * select sets of keyboard layouts that apply to only a specific region.
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 *
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 *
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 * Copyright (C) 2016 Mateusz Viste
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 * Copyright (C) 2016 Mateusz Viste
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 */
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 */
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/* the kblayouts list is a NULL-terminated array that contains entries in the
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/* the kblayouts list is a NULL-terminated array that contains entries in the
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 * following format:
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 * following format:
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 * human description string <0> layout code string <0> <codepage number as a 16bit value> <ega.sys file number as a single byte> <keyboard.sys file number as a single byte>
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 * human description string <0> layout code string <0> <codepage number as a 16bit value> <ega.sys file number as a single byte> <keyboard.sys file number as a single byte>
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    char *kblayouts[] = {
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    char *kblayouts[] = {
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    "English (US)\0xxxx",
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    "English (US)\0xxxx",
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    "Polish\0pl\0xxxx"};
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    "Polish\0pl\0xxxx"};
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  };
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  };
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 */
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 */
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#include <stdio.h>
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#include <stdio.h>
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#include <string.h>
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#include <string.h>
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/* global file pointers */
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/* global file pointers */
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FILE *fdkeyb, *fdoff;
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FILE *fdkeyb, *fdoff;
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/* Converts a positive base_10 into base_8 */
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/* Converts a positive base_10 into base_8 */
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static unsigned int dec2oct(int n) {
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static unsigned int dec2oct(int n) {
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  int res=0, digitPos=1;
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  int res=0, digitPos=1;
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  while (n) {
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  while (n) {
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    res += (n & 7) * digitPos;
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    res += (n & 7) * digitPos;
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    n >>= 3;
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    n >>= 3;
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    digitPos *= 10;
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    digitPos *= 10;
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  }
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  }
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  return(res);
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  return(res);
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}
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}
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static void addnew(char *countrycode, char *humanlang, char *keybcode, unsigned short cp, unsigned char egafile, unsigned char keybfile) {
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static void addnew(char *countrycode, char *humanlang, char *keybcode, unsigned short cp, unsigned char egafile, unsigned char keybfile) {
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  static char lastcountry[4] = {0};
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  static char lastcountry[4] = {0};
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  static int curoffset = 0, curcountryoffset = 0;
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  static int curoffset = 0, curcountryoffset = 0;
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  /* if new country, declare an offset */
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  /* if new country, declare an offset */
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  if (strcmp(countrycode, lastcountry) != 0) {
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  if (strcmp(countrycode, lastcountry) != 0) {
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    /* close previous one, if any */
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    /* close previous one, if any */
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    if (lastcountry[0] != 0) {
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    if (lastcountry[0] != 0) {
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      fprintf(fdoff, "#define OFFLEN_%s %d\r\n", lastcountry, curoffset - curcountryoffset);
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      fprintf(fdoff, "#define OFFLEN_%s %d\r\n", lastcountry, curoffset - curcountryoffset);
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    } else {
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    } else {
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      fprintf(fdkeyb, "char *kblayouts[] = {\r\n");
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      fprintf(fdkeyb, "char *kblayouts[] = {\r\n");
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    }
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    }
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    /* open new one, if any */
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    /* open new one, if any */
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    if (countrycode[0] != 0) {
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    if (countrycode[0] != 0) {
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      fprintf(fdkeyb, "  /****** %s ******/\r\n", countrycode);
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      fprintf(fdkeyb, "  /****** %s ******/\r\n", countrycode);
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      curcountryoffset = curoffset;
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      curcountryoffset = curoffset;
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      fprintf(fdoff, "#define OFFLOC_%s %d\r\n", countrycode, curoffset);
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      fprintf(fdoff, "#define OFFLOC_%s %d\r\n", countrycode, curoffset);
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      strcpy(lastcountry, countrycode);
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      strcpy(lastcountry, countrycode);
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    } else {
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    } else {
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      fprintf(fdoff, "#define OFFCOUNT %d\r\n", curoffset);
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      fprintf(fdoff, "#define OFFCOUNT %d\r\n", curoffset);
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    }
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    }
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  }
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  }
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  /* */
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  /* */
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  if (countrycode[0] != 0) {
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  if (countrycode[0] != 0) {
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    fprintf(fdkeyb, "  \"%s\\0%s\\0\\%d\\%d\\%d\\%d\",\r\n", humanlang, keybcode, dec2oct(cp >> 8), dec2oct(cp & 0xff), dec2oct(egafile), dec2oct(keybfile));
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    fprintf(fdkeyb, "  \"%s\\0%s\\0\\%d\\%d\\%d\\%d\",\r\n", humanlang, keybcode, dec2oct(cp >> 8), dec2oct(cp & 0xff), dec2oct(egafile), dec2oct(keybfile));
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  } else {
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  } else {
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    fprintf(fdkeyb, "  NULL};\r\n");
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    fprintf(fdkeyb, "  NULL};\r\n");
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  }
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  }
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  curoffset++;
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  curoffset++;
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}
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}
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int main(void) {
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int main(void) {
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  /*** open files ***/
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  /*** open files ***/
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  fdkeyb = fopen("keylay.h", "wb");
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  fdkeyb = fopen("keylay.h", "wb");
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  fdoff = fopen("keyoff.h", "wb");
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  fdoff = fopen("keyoff.h", "wb");
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  /******************* LAYOUTS LIST START *******************/
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  /******************* LAYOUTS LIST START *******************/
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  /* English */
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  /* English */
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  addnew("EN", "English (US)", "en", 437, 0, 0);
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  addnew("EN", "English (US)", "en", 437, 0, 0);
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  addnew("EN", "English (UK)", "uk", 437, 0, 1);
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  addnew("EN", "English (UK)", "uk", 437, 0, 1);
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  /* French */
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  /* French */
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  addnew("FR", "French (France)", "fr", 858, 1, 1);
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  addnew("FR", "French (France)", "fr", 858, 1, 1);
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  addnew("FR", "French (Canada, standard)", "cf", 863, 9, 1);
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  addnew("FR", "French (Canada, standard)", "cf", 863, 9, 1);
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  addnew("FR", "French (Canada, legacy)", "cf501", 863, 9, 1);
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  addnew("FR", "French (Canada, legacy)", "cf501", 863, 9, 1);
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  /* German */
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  /* German */
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  addnew("DE", "German", "de", 858, 1, 1);
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  addnew("DE", "German", "de", 858, 1, 1);
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  /* Polish */
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  /* Polish */
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  addnew("PL", "Polish", "pl", 991, 10, 1);
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  addnew("PL", "Polish", "pl", 991, 10, 1);
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  /* Spanish */
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  /* Spanish */
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  addnew("ES", "Spanish", "es", 858, 1, 1);
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  addnew("ES", "Spanish", "es", 858, 1, 1);
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  /* Turkish */
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  /* Turkish */
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  addnew("TR", "Turkish", "tr", 857, 1, 2);
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  addnew("TR", "Turkish", "tr", 857, 1, 2);
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  /******************* LAYOUTS LIST STOP *******************/
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  /******************* LAYOUTS LIST STOP *******************/
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  /* end of list - DO NOT REMOVE */
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  /* end of list - DO NOT REMOVE */
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  addnew("", "", "", 0, 0, 0);
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  addnew("", "", "", 0, 0, 0);
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  /* close files */
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  /* close files */
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  fclose(fdoff);
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  fclose(fdoff);
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  fclose(fdkeyb);
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  fclose(fdkeyb);
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  return(0);
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  return(0);
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}
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}