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/*
* Locales configuration for SvarDOS
*
* Copyright (C) Mateusz Viste 2015-2022
*
* MIT license
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h> /* atoi() */
#include <string.h> /* strchr */
#include "country.h"
#define PVER "20220202"
#define PDATE "2015-2022"
static void about(void) {
puts("localcfg ver " PVER " - locales configuration for DOS\n"
"Copyright (C) " PDATE " Mateusz Viste\n"
"\n"
"localcfg creates or edits a custom COUNTRY.SYS-like file with your preferences.\n"
"\n"
"usage: localcfg [COUNTRY.SYS] [options]\n"
"\n"
"options allow to configure country locales to your likening, as follows:\n"
" /country:XX indicates your country code is XX (1 for USA, 33 for France, etc)\n"
" /cp:XXX adapts country data for codepage XXX (example: '437')\n"
" /decim:X reconfigures the decimal symbol to be 'X'");
puts(" /thous:X reconfigures the thousands symbol to be 'X'\n"
" /datesep:X sets the date separator to 'X' (for example '/')\n"
" /datefmt:X sets the date format, can be: MDY, DMY or YMD\n"
" /timesep:X sets the time separator to 'X' (for example ':')\n"
" /timefmt:X sets the time format: 0=12h with AM/PM or 1=24h\n"
" /curr:XXX sets the currency to XXX (a string of 1 to 4 characters)\n"
" /currpos:X sets the currency symbol position to X, where X is either");
puts(" 0=currency precedes the value, 1=currency follows the value and\n"
" 2=currency replaces the decimal sign\n"
" /currspc:X space between the currency and the value (0=no, 1=yes)\n"
" /currprec:X currency's precision (number of decimal digits, 0..9)\n"
" /yesno:XY sets the 'Yes/No' letter to XY (default: YN)\n"
"\n"
"If COUNTRY.SYS location is not provided, then localcfg tries loading it\n"
"from %DOSDIR%\\CFG\\COUNTRY.SYS\n"
);
}
static char *datestring(struct country *c) {
static char result[16];
switch (c->CTYINFO.datefmt) {
case COUNTRY_DATE_MDY:
sprintf(result, "12%c31%c1990", c->CTYINFO.datesep[0], c->CTYINFO.datesep[0]);
break;
case COUNTRY_DATE_DMY:
sprintf(result, "31%c12%c1990", c->CTYINFO.datesep[0], c->CTYINFO.datesep[0]);
break;
case COUNTRY_DATE_YMD:
default:
sprintf(result, "1990%c12%c31", c->CTYINFO.datesep[0], c->CTYINFO.datesep[0]);
break;
}
return(result);
}
static char *timestring(struct country *c) {
static char result[16];
if (c->CTYINFO.timefmt == COUNTRY_TIME12) {
sprintf(result, "11%c59%c59 PM", c->CTYINFO.timesep[0], c->CTYINFO.timesep[0]);
} else {
sprintf(result, "23%c59%c59", c->CTYINFO.timesep[0], c->CTYINFO.timesep[0]);
}
return(result);
}
static char *currencystring(struct country *c) {
static char result[16];
char decimalpart[16];
char space[2] = {0, 0};
char decsym[8];
char cursym[8];
decimalpart[0] = '1';
decimalpart[1] = '2';
decimalpart[2] = '3';
decimalpart[3] = '4';
decimalpart[4] = '5';
decimalpart[5] = '6';
decimalpart[6] = '7';
decimalpart[7] = '8';
decimalpart[8] = '9';
decimalpart[9] = 0;
/* prepare the decimal string first */
if (c->CTYINFO.currprec < 9) {
decimalpart[c->CTYINFO.currprec] = 0;
}
/* prepare the currency space string */
if (c->CTYINFO.currspace != 0) {
space[0] = ' ';
}
/* prepare the currency and decimal symbols */
if (c->CTYINFO.currdecsym != 0) { /* currency replaces the decimal point */
sprintf(decsym, "%s", c->CTYINFO.currsym);
cursym[0] = 0;
} else {
sprintf(decsym, "%c", c->CTYINFO.decimal[0]);
sprintf(cursym, "%s", c->CTYINFO.currsym);
}
if (c->CTYINFO.currprec == 0) decsym[0] = 0;
/* compute the final string */
if (c->CTYINFO.currpos == 0) { /* currency precedes value */
sprintf(result, "%s%s99%s%s", cursym, space, decsym, decimalpart);
} else { /* currency follows value or replaces decimal symbol */
sprintf(result, "99%s%s%s%s", decsym, decimalpart, space, cursym);
}
return(result);
}
/* checks if str starts with prefix. returns 0 if so, non-zero otherwise. */
static int stringstartswith(char *str, char *prefix) {
for (;;) {
/* end of prefix means success */
if (*prefix == 0) return(0);
/* otherwise there is no match */
if (*str != *prefix) return(-1);
/* if match good so far, look at next char */
str += 1;
prefix += 1;
}
}
/* processes an argument. returns 0 on success, non-zero otherwise. */
static int processarg(char *arg, struct country *c) {
char *value;
int intvalue;
/* an option must start with a '/' */
if (arg[0] != '/') return(-1);
arg += 1; /* skip the slash */
/* find where the value starts */
value = strchr(arg, ':');
/* if no value present, fail */
if (value == NULL) return(-2);
value += 1;
if (*value == 0) return(-3);
/* interpret the option now */
if (stringstartswith(arg, "country:") == 0) {
intvalue = atoi(value);
if ((intvalue > 0) && (intvalue < 1000)) {
c->CTYINFO.id = intvalue;
return(0);
}
} else if (stringstartswith(arg, "cp:") == 0) {
intvalue = atoi(value);
if ((intvalue > 0) && (intvalue < 1000)) {
c->CTYINFO.codepage = intvalue;
return(0);
}
} else if (stringstartswith(arg, "decim:") == 0) {
if (value[1] == 0) { /* value must be exactly one character */
c->CTYINFO.decimal[0] = *value;
return(0);
}
} else if (stringstartswith(arg, "thous:") == 0) {
if (value[1] == 0) { /* value must be exactly one character */
c->CTYINFO.thousands[0] = *value;
return(0);
}
} else if (stringstartswith(arg, "datesep:") == 0) {
if (value[1] == 0) { /* value must be exactly one character */
c->CTYINFO.datesep[0] = *value;
return(0);
}
} else if (stringstartswith(arg, "timesep:") == 0) {
if (value[1] == 0) { /* value must be exactly one character */
c->CTYINFO.timesep[0] = *value;
return(0);
}
} else if (stringstartswith(arg, "datefmt:") == 0) {
if (strcmp(value, "MDY") == 0) {
c->CTYINFO.datefmt = COUNTRY_DATE_MDY;
return(0);
} else if (strcmp(value, "DMY") == 0) {
c->CTYINFO.datefmt = COUNTRY_DATE_DMY;
return(0);
} else if (strcmp(value, "YMD") == 0) {
c->CTYINFO.datefmt = COUNTRY_DATE_YMD;
return(0);
}
} else if (stringstartswith(arg, "timefmt:") == 0) {
if (value[1] == 0) {
if ((value[0] >= '0') && (value[0] <= '1')) {
c->CTYINFO.timefmt = value[0] - '0';
return(0);
}
}
} else if (stringstartswith(arg, "curr:") == 0) {
if (strlen(value) <= 4) {
strcpy(c->CTYINFO.currsym, value);
return(0);
}
} else if (stringstartswith(arg, "currpos:") == 0) {
if (value[1] == 0) {
if (value[0] == '0') {
c->CTYINFO.currpos = 0;
return(0);
} else if (value[0] == '1') {
c->CTYINFO.currpos = 1;
return(0);
} else if (value[0] == '2') {
c->CTYINFO.currpos = 0;
c->CTYINFO.currdecsym = 1;
return(0);
}
}
} else if (stringstartswith(arg, "currspc:") == 0) {
if (value[1] == 0) {
if ((value[0] >= '0') && (value[0] <= '1')) {
c->CTYINFO.currspace = value[0] - '0';
return(0);
}
}
} else if (stringstartswith(arg, "currprec:") == 0) {
if (value[1] == 0) {
if ((value[0] >= '0') && (value[0] <= '9')) {
c->CTYINFO.currprec = value[0] - '0';
return(0);
}
}
} else if (stringstartswith(arg, "yesno:") == 0) {
/* string must be exactly 2 characters long */
if ((value[0] != 0) && (value[1] != 0) && (value[2] == 0)) {
c->YESNO.yes[0] = value[0];
c->YESNO.no[0] = value[1];
return(0);
}
}
/* if I'm here, something went wrong */
return(-4);
}
/* converts a path to its canonic representation, returns 0 on success
* or DOS err on failure (invalid drive) */
static unsigned short file_truename(const char *dst, char *src) {
unsigned short res = 0;
_asm {
push es
mov ah, 0x60 /* query truename, DS:SI=src, ES:DI=dst */
push ds
pop es
mov si, src
mov di, dst
int 0x21
jnc DONE
mov [res], ax
DONE:
pop es
}
return(res);
}
static void default_country_path(char *s) {
char *dosdir = getenv("DOSDIR");
size_t dosdirlen;
s[0] = 0;
if (dosdir == NULL) return;
dosdirlen = strlen(dosdir);
if (dosdirlen == 0) return;
/* drop trailing backslash if present */
if (dosdir[dosdirlen - 1] == '\\') dosdirlen--;
/* copy dosdir to s and append the rest of the path */
memcpy(s, dosdir, dosdirlen);
strcpy(s + dosdirlen, "\\CFG\\COUNTRY.SYS");
}
int main(int argc, char **argv) {
struct country cntdata;
int changedflag;
int x;
static char fname[130];
/* scan argv looking for the path to country.sys */
for (x = 1; x < argc; x++) {
if (argv[x][0] != '/') {
if (fname[0] != 0) {
puts("ERROR: file path can be provided only once");
return(1);
}
/* */
if (file_truename(fname, argv[x]) != 0) {
puts("ERROR: bad file path");
return(1);
}
} else if (strcmp(argv[x], "/?") == 0) { /* is it /? */
about();
return(1);
}
}
/* if no file path provided, look into %DOSDIR%\CFG\COUNTRY.SYS */
if (fname[0] == 0) default_country_path(fname);
x = country_read(&cntdata, fname);
if (x != 0) {
printf("ERROR: failed to read the preference file [%d]\n", x);
return(2);
}
changedflag = 0;
/* process command line arguments */
for (x = 1; x < argc; x++) {
if (argv[x][0] != '/') continue; /* skip country.sys filename (processed earlier) */
changedflag++;
if (processarg(argv[x], &cntdata) != 0) {
puts("ERROR: invalid parameter syntax");
return(3);
}
}
printf("Country intl code.....: %03d\n", cntdata.CTYINFO.id);
printf("Codepage..............: %d\n", cntdata.CTYINFO.codepage);
printf("Decimal separator.....: %c\n", cntdata.CTYINFO.decimal[0]);
printf("Thousands separator...: %c\n", cntdata.CTYINFO.thousands[0]);
printf("Date format...........: %s\n", datestring(&cntdata));
printf("Time format...........: %s\n", timestring(&cntdata));
printf("Yes/No letters........: %c/%c\n", cntdata.YESNO.yes[0], cntdata.YESNO.no[0]);
printf("Currency example......: %s\n", currencystring(&cntdata));
printf("\n"
"Make sure that your CONFIG.SYS contains this directive:\n"
"COUNTRY=%03d,%03d,%s\n\n", cntdata.CTYINFO.id, cntdata.CTYINFO.codepage, fname);
/* if anything changed, write the new file */
if (changedflag != 0) country_write(fname, &cntdata);
return(0);
}