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@ r27383:44f4e925c6f0
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Location: cpp/openttd-patchpack/source/src/script/api/script_text.cpp
r27383:44f4e925c6f0
8.0 KiB
text/x-c
Codechange: Swap SocketList map key/value around.
This map is used store socket and address together, and, other than
checking that the address does not already have a socket, the data layout
does not seem particularly important.
However, as address is the key, technically it should not be modified,
and address may self-modify itself during comparisons.
This map is used store socket and address together, and, other than
checking that the address does not already have a socket, the data layout
does not seem particularly important.
However, as address is the key, technically it should not be modified,
and address may self-modify itself during comparisons.
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* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file script_text.cpp Implementation of ScriptText. */
#include "../../stdafx.h"
#include "../../string_func.h"
#include "../../strings_func.h"
#include "../../game/game_text.hpp"
#include "script_text.hpp"
#include "script_log.hpp"
#include "../script_fatalerror.hpp"
#include "../../table/control_codes.h"
#include "table/strings.h"
#include "../../safeguards.h"
RawText::RawText(const std::string &text) : text(text)
{
}
ScriptText::ScriptText(HSQUIRRELVM vm) :
ZeroedMemoryAllocator()
{
int nparam = sq_gettop(vm) - 1;
if (nparam < 1) {
throw sq_throwerror(vm, "You need to pass at least a StringID to the constructor");
}
/* First resolve the StringID. */
SQInteger sqstring;
if (SQ_FAILED(sq_getinteger(vm, 2, &sqstring))) {
throw sq_throwerror(vm, "First argument must be a valid StringID");
}
this->string = sqstring;
/* The rest of the parameters must be arguments. */
for (int i = 0; i < nparam - 1; i++) {
/* Push the parameter to the top of the stack. */
sq_push(vm, i + 3);
if (SQ_FAILED(this->_SetParam(i, vm))) {
this->~ScriptText();
throw sq_throwerror(vm, "Invalid parameter");
}
/* Pop the parameter again. */
sq_pop(vm, 1);
}
}
SQInteger ScriptText::_SetParam(int parameter, HSQUIRRELVM vm)
{
if (parameter >= SCRIPT_TEXT_MAX_PARAMETERS) return SQ_ERROR;
switch (sq_gettype(vm, -1)) {
case OT_STRING: {
const SQChar *value;
sq_getstring(vm, -1, &value);
this->param[parameter] = StrMakeValid(value);
break;
}
case OT_INTEGER: {
SQInteger value;
sq_getinteger(vm, -1, &value);
this->param[parameter] = value;
break;
}
case OT_INSTANCE: {
SQUserPointer real_instance = nullptr;
HSQOBJECT instance;
sq_getstackobj(vm, -1, &instance);
/* Validate if it is a GSText instance */
sq_pushroottable(vm);
sq_pushstring(vm, "GSText", -1);
sq_get(vm, -2);
sq_pushobject(vm, instance);
if (sq_instanceof(vm) != SQTrue) return SQ_ERROR;
sq_pop(vm, 3);
/* Get the 'real' instance of this class */
sq_getinstanceup(vm, -1, &real_instance, nullptr);
if (real_instance == nullptr) return SQ_ERROR;
ScriptText *value = static_cast<ScriptText *>(real_instance);
this->param[parameter] = ScriptTextRef(value);
break;
}
default: return SQ_ERROR;
}
if (this->paramc <= parameter) this->paramc = parameter + 1;
return 0;
}
SQInteger ScriptText::SetParam(HSQUIRRELVM vm)
{
if (sq_gettype(vm, 2) != OT_INTEGER) return SQ_ERROR;
SQInteger k;
sq_getinteger(vm, 2, &k);
if (k > SCRIPT_TEXT_MAX_PARAMETERS) return SQ_ERROR;
if (k < 1) return SQ_ERROR;
k--;
return this->_SetParam(k, vm);
}
SQInteger ScriptText::AddParam(HSQUIRRELVM vm)
{
SQInteger res;
res = this->_SetParam(this->paramc, vm);
if (res != 0) return res;
/* Push our own instance back on top of the stack */
sq_push(vm, 1);
return 1;
}
SQInteger ScriptText::_set(HSQUIRRELVM vm)
{
int32 k;
if (sq_gettype(vm, 2) == OT_STRING) {
const SQChar *key_string;
sq_getstring(vm, 2, &key_string);
StrMakeValidInPlace(const_cast<char *>(key_string));
if (strncmp(key_string, "param_", 6) != 0 || strlen(key_string) > 8) return SQ_ERROR;
k = atoi(key_string + 6);
} else if (sq_gettype(vm, 2) == OT_INTEGER) {
SQInteger key;
sq_getinteger(vm, 2, &key);
k = (int32)key;
} else {
return SQ_ERROR;
}
if (k > SCRIPT_TEXT_MAX_PARAMETERS) return SQ_ERROR;
if (k < 1) return SQ_ERROR;
k--;
return this->_SetParam(k, vm);
}
const std::string ScriptText::GetEncodedText()
{
static char buf[1024];
static StringIDList seen_ids;
int param_count = 0;
seen_ids.clear();
this->_GetEncodedText(buf, lastof(buf), param_count, seen_ids);
if (param_count > SCRIPT_TEXT_MAX_PARAMETERS) throw Script_FatalError(fmt::format("{}: Too many parameters", GetGameStringName(this->string)));
return buf;
}
char *ScriptText::_GetEncodedText(char *p, char *lastofp, int ¶m_count, StringIDList &seen_ids)
{
const std::string &name = GetGameStringName(this->string);
if (std::find(seen_ids.begin(), seen_ids.end(), this->string) != seen_ids.end()) throw Script_FatalError(fmt::format("{}: Circular reference detected", name));
seen_ids.push_back(this->string);
p += Utf8Encode(p, SCC_ENCODED);
p += seprintf(p, lastofp, "%X", this->string);
const StringParams ¶ms = GetGameStringParams(this->string);
int cur_idx = 0;
int prev_string = -1;
int prev_idx = -1;
int prev_count = -1;
for (const StringParam &cur_param : params) {
if (cur_idx >= this->paramc) throw Script_FatalError(fmt::format("{}: Not enough parameters", name));
if (prev_string != -1) {
/* The previous substring added more parameters than expected, means we will consume them but can't properly validate them. */
for (int i = 0; i < cur_param.consumes; i++) {
if (prev_idx < prev_count) {
ScriptLog::Warning(fmt::format("{}: Parameter {} uses parameter {} from substring {} and cannot be validated", name, param_count + i, prev_idx++, prev_string).c_str());
} else {
/* No more extra parameters, assume SQInteger are expected. */
if (cur_idx >= this->paramc) throw Script_FatalError(fmt::format("{}: Not enough parameters", name));
if (!std::holds_alternative<SQInteger>(this->param[cur_idx])) throw Script_FatalError(fmt::format("{}: Parameter {} expects an integer", name, param_count + i));
p = strecpy(p, fmt::format(":{:X}", std::get<SQInteger>(this->param[cur_idx++])).c_str(), lastofp);
}
}
if (prev_idx == prev_count) {
/* Re-enable validation. */
prev_string = -1;
}
} else {
switch (cur_param.type) {
case StringParam::RAW_STRING:
if (!std::holds_alternative<std::string>(this->param[cur_idx])) throw Script_FatalError(fmt::format("{}: Parameter {} expects a raw string", name, param_count));
p += seprintf(p, lastofp, ":\"%s\"", std::get<std::string>(this->param[cur_idx++]).c_str());
break;
case StringParam::STRING: {
if (!std::holds_alternative<ScriptTextRef>(this->param[cur_idx])) throw Script_FatalError(fmt::format("{}: Parameter {} expects a substring", name, param_count));
int count = 0;
p = strecpy(p, ":", lastofp);
p = std::get<ScriptTextRef>(this->param[cur_idx++])->_GetEncodedText(p, lastofp, count, seen_ids);
if (++count != cur_param.consumes) {
ScriptLog::Error(fmt::format("{}: Parameter {} substring consumes {}, but expected {} to be consumed", name, param_count, count - 1, cur_param.consumes - 1).c_str());
/* Fill missing params if needed. */
for (int i = count; i < cur_param.consumes; i++) p += seprintf(p, lastofp, ":0");
/* Disable validation for the extra params if any. */
if (count > cur_param.consumes) {
prev_string = param_count;
prev_idx = cur_param.consumes - 1;
prev_count = count - 1;
}
}
break;
}
default:
if (cur_idx + cur_param.consumes > this->paramc) throw Script_FatalError(fmt::format("{}: Not enough parameters", name));
for (int i = 0; i < cur_param.consumes; i++) {
if (!std::holds_alternative<SQInteger>(this->param[cur_idx])) throw Script_FatalError(fmt::format("{}: Parameter {} expects an integer", name, param_count + i));
p = strecpy(p, fmt::format(":{:X}", std::get<SQInteger>(this->param[cur_idx++])).c_str(), lastofp);
}
}
}
param_count += cur_param.consumes;
}
seen_ids.pop_back();
return p;
}
const std::string Text::GetDecodedText()
{
const std::string &encoded_text = this->GetEncodedText();
static char buf[1024];
::SetDParamStr(0, encoded_text);
::GetString(buf, STR_JUST_RAW_STRING, lastof(buf));
return buf;
}
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