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/* $Id$ */
/** @file strings_sl.cpp Code handling saving and loading of strings */
#include "../stdafx.h"
#include "../strings_type.h"
#include "../core/math_func.hpp"
#include "../core/bitmath_func.hpp"
#include "../core/alloc_func.hpp"
#include "../string_func.h"
#include "table/strings.h"
#include "saveload.h"
/**
* Remap a string ID from the old format to the new format
* @param s StringID that requires remapping
* @return translated ID
*/
StringID RemapOldStringID(StringID s)
{
switch (s) {
case 0x0006: return STR_SV_EMPTY;
case 0x7000: return STR_SV_UNNAMED;
case 0x70E4: return SPECSTR_PLAYERNAME_ENGLISH;
case 0x70E9: return SPECSTR_PLAYERNAME_ENGLISH;
case 0x8864: return STR_SV_TRAIN_NAME;
case 0x902B: return STR_SV_ROADVEH_NAME;
case 0x9830: return STR_SV_SHIP_NAME;
case 0xA02F: return STR_SV_AIRCRAFT_NAME;
default:
if (IsInsideMM(s, 0x300F, 0x3030)) {
return s - 0x300F + STR_SV_STNAME;
} else {
return s;
}
}
}
/** Location to load the old names to. */
char *_old_name_array = NULL;
/**
* Copy and convert old custom names to UTF-8.
* They were all stored in a 512 by 32 long string array and are
* now stored with stations, waypoints and other places with names.
* @param id the StringID of the custom name to clone.
* @return the clones custom name.
*/
char *CopyFromOldName(StringID id)
{
/* Is this name an (old) custom name? */
if (GB(id, 11, 5) != 15) return NULL;
if (CheckSavegameVersion(37)) {
/* Old names were 32 characters long, so 128 characters should be
* plenty to allow for expansion when converted to UTF-8. */
char tmp[128];
const char *strfrom = &_old_name_array[32 * GB(id, 0, 9)];
char *strto = tmp;
for (; *strfrom != '\0'; strfrom++) {
WChar c = (byte)*strfrom;
/* Map from non-ISO8859-15 characters to UTF-8. */
switch (c) {
case 0xA4: c = 0x20AC; break; // Euro
case 0xA6: c = 0x0160; break; // S with caron
case 0xA8: c = 0x0161; break; // s with caron
case 0xB4: c = 0x017D; break; // Z with caron
case 0xB8: c = 0x017E; break; // z with caron
case 0xBC: c = 0x0152; break; // OE ligature
case 0xBD: c = 0x0153; break; // oe ligature
case 0xBE: c = 0x0178; break; // Y with diaresis
default: break;
}
/* Check character will fit into our buffer. */
if (strto + Utf8CharLen(c) > lastof(tmp)) break;
strto += Utf8Encode(strto, c);
}
/* Terminate the new string and copy it back to the name array */
*strto = '\0';
return strdup(tmp);
} else {
/* Name will already be in UTF-8. */
return strdup(&_old_name_array[32 * GB(id, 0, 9)]);
}
}
/**
* Free the memory of the old names array.
* Should be called once the old names have all been converted.
*/
void ResetOldNames()
{
free(_old_name_array);
_old_name_array = NULL;
}
/**
* Initialize the old names table memory.
*/
void InitializeOldNames()
{
free(_old_name_array);
_old_name_array = CallocT<char>(512 * 32);
}
static void Load_NAME()
{
int index;
while ((index = SlIterateArray()) != -1) {
SlArray(&_old_name_array[32 * index], SlGetFieldLength(), SLE_UINT8);
}
}
extern const ChunkHandler _name_chunk_handlers[] = {
{ 'NAME', NULL, Load_NAME, CH_ARRAY | CH_LAST},
};
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