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/* $Id$ */

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#include "stdafx.h"

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#include "openttd.h"

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#include "currency.h"

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#include "functions.h"

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#include "string.h"

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#include "strings.h"

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#include "table/strings.h"

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#include "namegen.h"

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#include "station.h"

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#include "town.h"

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#include "vehicle.h"

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#include "news.h"

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#include "screenshot.h"

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#include "waypoint.h"

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#include "industry.h"

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#include "variables.h"

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    20

char _userstring[128];

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    22

static char *StationGetSpecialString(char *buff, int x);

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static char *GetSpecialTownNameString(char *buff, int ind, uint32 seed);

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static char *GetSpecialPlayerNameString(char *buff, int ind, const int32 *argv);

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    26

static char *FormatString(char *buff, const char *str, const int32 *argv, uint casei);

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    28

extern const char _openttd_revision[];

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typedef struct LanguagePack {

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	uint32 ident;

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	uint32 version;			// 32-bits of auto generated version info which is basically a hash of strings.h

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	char name[32];			// the international name of this language

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	char own_name[32];	// the localized name of this language

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	char isocode[16];	// the ISO code for the language (not country code)

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	uint16 offsets[32];	// the offsets

    37

	byte plural_form;		// how to compute plural forms

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	byte pad[3];				// pad header to be a multiple of 4

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	char data[VARARRAY_SIZE];

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} LanguagePack;

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    42

static char **_langpack_offs;

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static LanguagePack *_langpack;

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static uint _langtab_num[32]; // Offset into langpack offs

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static uint _langtab_start[32]; // Offset into langpack offs

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static const StringID _cargo_string_list[NUM_LANDSCAPE][NUM_CARGO] = {

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	{ /* LT_NORMAL */

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		STR_PASSENGERS,

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		STR_TONS,

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		STR_BAGS,

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		STR_LITERS,

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		STR_ITEMS,

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		STR_CRATES,

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		STR_TONS,

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		STR_TONS,

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		STR_TONS,

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		STR_TONS,

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		STR_BAGS,

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		STR_RES_OTHER

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	},

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	{ /* LT_HILLY */

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		STR_PASSENGERS,

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		STR_TONS,

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		STR_BAGS,

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		STR_LITERS,

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		STR_ITEMS,

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		STR_CRATES,

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		STR_TONS,

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		STR_TONS,

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		STR_RES_OTHER,

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		STR_TONS,

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		STR_BAGS,

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		STR_TONS

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	},

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    78

	{ /* LT_DESERT */

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		STR_PASSENGERS,

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		STR_LITERS,

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		STR_BAGS,

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		STR_LITERS,

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		STR_TONS,

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		STR_CRATES,

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		STR_TONS,

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		STR_TONS,

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		STR_TONS,

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		STR_LITERS,

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		STR_BAGS,

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		STR_TONS

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	},

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	{ /* LT_CANDY */

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		STR_PASSENGERS,

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		STR_TONS,

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		STR_BAGS,

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		STR_NOTHING,

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		STR_NOTHING,

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		STR_TONS,

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		STR_TONS,

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		STR_LITERS,

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		STR_TONS,

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		STR_NOTHING,

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		STR_LITERS,

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		STR_NOTHING

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	}

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};

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   109

   110

// Read an int64 from the argv array.

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static inline int64 GetInt64(const int32 **argv)

   112

{

   113

	int64 result;

   114

   115

	assert(argv);

   116

	result = (uint32)(*argv)[0] + ((uint64)(uint32)(*argv)[1] << 32);

   117

	(*argv)+=2;

   118

	return result;

   119

}

   120

   121

// Read an int32 from the argv array.

   122

static inline int32 GetInt32(const int32 **argv)

   123

{

   124

	assert(argv);

   125

	return *(*argv)++;

   126

}

   127

   128

// Read an array from the argv array.

   129

static inline const int32 *GetArgvPtr(const int32 **argv, int n)

   130

{

   131

	const int32 *result;

   132

	assert(*argv);

   133

	result = *argv;

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	(*argv) += n;

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	return result;

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}

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   138

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#define NUM_BOUND_STRINGS 8

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   141

// Array to hold the bound strings.

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static const char *_bound_strings[NUM_BOUND_STRINGS];

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   144

// This index is used to implement a "round-robin" allocating of

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// slots for BindCString. NUM_BOUND_STRINGS slots are reserved.

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// Which means that after NUM_BOUND_STRINGS calls to BindCString,

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// the indices will be reused.

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static int _bind_index;

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   150

static const char *GetStringPtr(StringID string)

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{

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	return _langpack_offs[_langtab_start[string >> 11] + (string & 0x7FF)];

   153

}

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// The highest 8 bits of string contain the "case index".

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// These 8 bits will only be set when FormatString wants to print

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// the string in a different case. No one else except FormatString

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// should set those bits.

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char *GetStringWithArgs(char *buffr, uint string, const int32 *argv)

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{

   161

	uint index = GB(string,  0, 11);

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	uint tab   = GB(string, 11,  5);

   163

   164

	if (GB(string, 0, 16) == 0) error("!invalid string id 0 in GetString");

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   166

	switch (tab) {

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		case 4:

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			if (index >= 0xC0)

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				return GetSpecialTownNameString(buffr, index - 0xC0, GetInt32(&argv));

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			break;

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   172

		case 14:

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			if (index >= 0xE4)

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				return GetSpecialPlayerNameString(buffr, index - 0xE4, argv);

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			break;

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   177

		// User defined name

   178

		case 15:

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			return GetName(index, buffr);

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   181

		case 31:

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			// dynamic strings. These are NOT to be passed through the formatter,

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			// but passed through verbatim.

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			if (index < (STR_SPEC_USERSTRING & 0x7FF)) {

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				return strecpy(buffr, _bound_strings[index], NULL);

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			}

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   188

			return FormatString(buffr, _userstring, NULL, 0);

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	}

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   191

	if (index >= _langtab_num[tab]) {

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		error(

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			"!String 0x%X is invalid. "

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			"Probably because an old version of the .lng file.\n", string

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		);

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	}

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   198

	return FormatString(buffr, GetStringPtr(GB(string, 0, 16)), argv, GB(string, 24, 8));

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}

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   201

char *GetString(char *buffr, StringID string)

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{

   203

	return GetStringWithArgs(buffr, string, (int32*)_decode_parameters);

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}

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// This function takes a C-string and allocates a temporary string ID.

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// The duration of the bound string is valid only until the next GetString,

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// so be careful.

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StringID BindCString(const char *str)

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{

   212

	int idx = (++_bind_index) & (NUM_BOUND_STRINGS - 1);

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	_bound_strings[idx] = str;

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	return idx + STR_SPEC_DYNSTRING;

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}

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// This function is used to "bind" a C string to a OpenTTD dparam slot.

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void SetDParamStr(uint n, const char *str)

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{

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	SetDParam(n, BindCString(str));

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}

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void InjectDParam(int amount)

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{

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	memmove(_decode_parameters + amount, _decode_parameters, sizeof(_decode_parameters) - amount * sizeof(uint32));

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}

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static const uint32 _divisor_table[] = {

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	1000000000,

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	100000000,

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	10000000,

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	1000000,

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	100000,

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	10000,

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	1000,

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	100,

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	10,

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	1

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};

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static char *FormatCommaNumber(char *buff, int32 number)

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{

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	uint32 quot,divisor;

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	int i;

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	uint32 tot;

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	uint32 num;

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   249

	if (number < 0) {

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		*buff++ = '-';

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		number = -number;

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	}

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   254

	num = number;

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   256

	tot = 0;

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	for (i = 0; i != 10; i++) {

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		divisor = _divisor_table[i];

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		quot = 0;

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		if (num >= divisor) {

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			quot = num / _divisor_table[i];

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			num = num % _divisor_table[i];

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		}

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		if (tot |= quot || i == 9) {

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			*buff++ = '0' + quot;

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			if (i == 0 || i == 3 || i == 6) *buff++ = ',';

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		}

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	}

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	*buff = '\0';

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   272

	return buff;

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}

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static char *FormatNoCommaNumber(char *buff, int32 number)

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{

   277

	uint32 quot,divisor;

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	int i;

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	uint32 tot;

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	uint32 num;

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   282

	if (number < 0) {

   283

		*buff++ = '-';

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		number = -number;

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	}

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   287

	num = number;

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   289

	tot = 0;

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	for (i = 0; i != 10; i++) {

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		divisor = _divisor_table[i];

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		quot = 0;

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		if (num >= divisor) {

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			quot = num / _divisor_table[i];

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			num = num % _divisor_table[i];

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		}

   297

		if (tot |= quot || i == 9) {

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			*buff++ = '0' + quot;

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		}

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	}

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   302

	*buff = '\0';

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	return buff;

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}

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static char *FormatYmdString(char *buff, uint16 number)

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{

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	const char *src;

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	YearMonthDay ymd;

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   313

	ConvertDayToYMD(&ymd, number);

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	for (src = GetStringPtr(ymd.day + STR_01AC_1ST - 1); (*buff++ = *src++) != '\0';) {}

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   317

	buff[-1] = ' ';

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	memcpy(buff, GetStringPtr(STR_0162_JAN + ymd.month), 4);

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	buff[3] = ' ';

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	return FormatNoCommaNumber(buff + 4, ymd.year + MAX_YEAR_BEGIN_REAL);

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}

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static char *FormatMonthAndYear(char *buff, uint16 number)

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{

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	const char *src;

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	YearMonthDay ymd;

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   329

	ConvertDayToYMD(&ymd, number);

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	for (src = GetStringPtr(STR_MONTH_JAN + ymd.month); (*buff++ = *src++) != '\0';) {}

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	buff[-1] = ' ';

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	return FormatNoCommaNumber(buff, ymd.year + MAX_YEAR_BEGIN_REAL);

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}

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static char *FormatTinyDate(char *buff, uint16 number)

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{

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	YearMonthDay ymd;

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   341

	ConvertDayToYMD(&ymd, number);

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	buff += sprintf(buff, " %02i-%02i-%04i", ymd.day, ymd.month + 1, ymd.year + MAX_YEAR_BEGIN_REAL);

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	return buff;

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}

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static char *FormatGenericCurrency(char *buff, const CurrencySpec *spec, int64 number, bool compact)

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{

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	const char *s;

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	char c;

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	char buf[40], *p;

   352

	int j;

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   354

	// multiply by exchange rate

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	number *= spec->rate;

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   357

	// convert from negative

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	if (number < 0) {

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		*buff++ = '-';

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		number = -number;

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	}

   362

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	// add prefix part

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	s = spec->prefix;

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	while (s != spec->prefix + lengthof(spec->prefix) && (c = *s++) != '\0') *buff++ = c;

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   367

	// for huge numbers, compact the number into k or M

   368

	if (compact) {

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		compact = 0;

   370

		if (number >= 1000000000) {

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			number = (number + 500000) / 1000000;

   372

			compact = 'M';

   373

		} else if (number >= 1000000) {

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			number = (number + 500) / 1000;

   375

			compact = 'k';

   376

		}

   377

	}

   378

   379

	// convert to ascii number and add commas

   380

	p = buf;

   381

	j = 4;

   382

	do {

   383

		if (--j == 0) {

   384

			*p++ = spec->separator;

   385

			j = 3;

   386

		}

   387

		*p++ = '0' + number % 10;

   388

	} while (number /= 10);

   389

	do *buff++ = *--p; while (p != buf);

   390

   391

	if (compact) *buff++ = compact;

   392

   393

	// add suffix part

   394

	s = spec->suffix;

   395

	while (s != spec->suffix + lengthof(spec->suffix) && (c = *s++) != '\0') *buff++ = c;

   396

   397

	return buff;

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}

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static int DeterminePluralForm(int32 n)

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{

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	// The absolute value determines plurality

   403

	if (n < 0) n = -n;

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   405

	switch (_langpack->plural_form) {

   406

	// Two forms, singular used for one only

   407

	// Used in:

   408

	//   Danish, Dutch, English, German, Norwegian, Swedish, Estonian, Finnish,

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	//   Greek, Hebrew, Italian, Portuguese, Spanish, Esperanto

   410

	case 0:

   411

	default:

   412

		return n != 1;

   413

   414

	// Only one form

   415

	// Used in:

   416

	//   Hungarian, Japanese, Korean, Turkish

   417

	case 1:

   418

		return 0;

   419

   420

	// Two forms, singular used for zero and one

   421

	// Used in:

   422

	//   French, Brazilian Portuguese

   423

	case 2:

   424

		return n > 1;

   425

   426

	// Three forms, special case for zero

   427

	// Used in:

   428

	//   Latvian

   429

	case 3:

   430

		return n%10==1 && n%100!=11 ? 0 : n != 0 ? 1 : 2;

   431

   432

	// Three forms, special case for one and two

   433

	// Used in:

   434

	//   Gaelige (Irish)

   435

	case 4:

   436

		return n==1 ? 0 : n==2 ? 1 : 2;

   437

   438

	// Three forms, special case for numbers ending in 1[2-9]

   439

	// Used in:

   440

	//   Lithuanian

   441

	case 5:

   442

		return n%10==1 && n%100!=11 ? 0 : n%10>=2 && (n%100<10 || n%100>=20) ? 1 : 2;

   443

   444

	// Three forms, special cases for numbers ending in 1 and 2, 3, 4, except those ending in 1[1-4]

   445

	// Used in:

   446

	//   Croatian, Czech, Russian, Slovak, Ukrainian

   447

	case 6:

   448

		return n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2;

   449

   450

	// Three forms, special case for one and some numbers ending in 2, 3, or 4

   451

	// Used in:

   452

	//   Polish

   453

	case 7:

   454

		return n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2;

   455

   456

	// Four forms, special case for one and all numbers ending in 02, 03, or 04

   457

	// Used in:

   458

	//   Slovenian

   459

	case 8:

   460

		return n%100==1 ? 0 : n%100==2 ? 1 : n%100==3 || n%100==4 ? 2 : 3;

   461

	}

   462

}

   463

   464

static const char *ParseStringChoice(const char *b, uint form, char *dst, int *dstlen)

   465

{

   466

	//<NUM> {Length of each string} {each string}

   467

	uint n = (byte)*b++;

   468

	uint pos,i, mylen=0,mypos=0;

   469

   470

	for (i = pos = 0; i != n; i++) {

   471

		uint len = (byte)*b++;

   472

		if (i == form) {

   473

			mypos = pos;

   474

			mylen = len;

   475

		}

   476

		pos += len;

   477

	}

   478

	*dstlen = mylen;

   479

	memcpy(dst, b + mypos, mylen);

   480

	return b + pos;

   481

}

   482