0,0 → 1,111 |
/* This file is part of the svarlang project and is published under the terms |
* of the MIT license. |
* |
* Copyright (C) 2021-2022 Mateusz Viste |
* |
* 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> /* FILE */ |
#include <stdlib.h> /* NULL */ |
#include <string.h> /* memcmp(), strcpy() */ |
|
#include "svarlang.h" |
|
|
/* supplied through DEFLANG.C */ |
extern char svarlang_mem[]; |
extern const unsigned short svarlang_memsz; |
|
|
const char *svarlang_strid(unsigned short id) { |
const char *ptr = svarlang_mem; |
/* find the string id in langblock memory */ |
for (;;) { |
if (((unsigned short *)ptr)[0] == id) return(ptr + 4); |
if (((unsigned short *)ptr)[1] == 0) return(ptr + 2); /* end of strings - return an empty string */ |
ptr += ((unsigned short *)ptr)[1] + 4; |
} |
} |
|
|
int svarlang_load(const char *progname, const char *lang, const char *nlspath) { |
unsigned short langid; |
FILE *fd; |
char buff[128]; |
unsigned short buff16[2]; |
unsigned short i; |
|
if (lang == NULL) return(-1); |
if (nlspath == NULL) nlspath = ""; /* nlspath can be NULL, treat is as empty */ |
|
langid = *((unsigned short *)lang); |
langid &= 0xDFDF; /* make sure lang is upcase */ |
|
TRYNEXTPATH: |
|
/* skip any leading ';' separators */ |
while (*nlspath == ';') nlspath++; |
|
/* copy nlspath to buff and remember len */ |
for (i = 0; (nlspath[i] != 0) && (nlspath[i] != ';'); i++) buff[i] = nlspath[i]; |
nlspath += i; |
|
/* add a trailing backslash if there is none (non-empty paths empty) */ |
if ((i > 0) && (buff[i - 1] != '\\')) buff[i++] = '\\'; |
|
strcpy(buff + i, progname); |
strcat(buff + i, ".lng"); |
|
fd = fopen(buff, "rb"); |
if (fd == NULL) { /* failed to open file - either abort or try next path */ |
if (*nlspath == 0) return(-2); |
goto TRYNEXTPATH; |
} |
|
/* read hdr, should be "SvL\33" */ |
if ((fread(buff, 1, 4, fd) != 4) || (memcmp(buff, "SvL\33", 4) != 0)) { |
fclose(fd); |
return(-3); |
} |
|
/* read next lang id in file */ |
while (fread(buff16, 1, 4, fd) == 4) { |
|
/* is it the lang I am looking for? */ |
if (buff16[0] != langid) { /* skip to next lang */ |
fseek(fd, buff16[1], SEEK_CUR); |
continue; |
} |
|
/* found - but do I have enough memory space? */ |
if (buff16[1] >= svarlang_memsz) { |
fclose(fd); |
return(-4); |
} |
|
/* load strings */ |
if (fread(svarlang_mem, 1, buff16[1], fd) != buff16[1]) break; |
fclose(fd); |
return(0); |
} |
|
fclose(fd); |
return(-5); |
} |