mirror of
https://github.com/Ninjdai1/pokeemerald.git
synced 2024-11-16 19:47:35 +01:00
460 lines
11 KiB
C++
460 lines
11 KiB
C++
// Copyright(c) 2016 YamaArashi
|
|
//
|
|
// 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 <cstdio>
|
|
#include <cstdarg>
|
|
#include <stdexcept>
|
|
#include <string>
|
|
#include <memory>
|
|
#include <cstring>
|
|
#include <cerrno>
|
|
#include "preproc.h"
|
|
#include "c_file.h"
|
|
#include "char_util.h"
|
|
#include "utf8.h"
|
|
#include "string_parser.h"
|
|
|
|
CFile::CFile(const char * filenameCStr, bool isStdin)
|
|
{
|
|
FILE *fp;
|
|
|
|
if (isStdin) {
|
|
fp = stdin;
|
|
m_filename = std::string{"<stdin>/"}.append(filenameCStr);
|
|
} else {
|
|
fp = std::fopen(filenameCStr, "rb");
|
|
m_filename = std::string(filenameCStr);
|
|
}
|
|
|
|
std::string& filename = m_filename;
|
|
|
|
if (fp == NULL)
|
|
FATAL_ERROR("Failed to open \"%s\" for reading.\n", filename.c_str());
|
|
|
|
m_size = 0;
|
|
m_buffer = (char *)malloc(CHUNK_SIZE + 1);
|
|
if (m_buffer == NULL) {
|
|
FATAL_ERROR("Failed to allocate memory to process file \"%s\"!", filename.c_str());
|
|
}
|
|
|
|
std::size_t numAllocatedBytes = CHUNK_SIZE + 1;
|
|
std::size_t bufferOffset = 0;
|
|
std::size_t count;
|
|
|
|
while ((count = std::fread(m_buffer + bufferOffset, 1, CHUNK_SIZE, fp)) != 0) {
|
|
if (!std::ferror(fp)) {
|
|
m_size += count;
|
|
|
|
if (std::feof(fp)) {
|
|
break;
|
|
}
|
|
|
|
numAllocatedBytes += CHUNK_SIZE;
|
|
bufferOffset += CHUNK_SIZE;
|
|
m_buffer = (char *)realloc(m_buffer, numAllocatedBytes);
|
|
if (m_buffer == NULL) {
|
|
FATAL_ERROR("Failed to allocate memory to process file \"%s\"!", filename.c_str());
|
|
}
|
|
} else {
|
|
FATAL_ERROR("Failed to read \"%s\". (error: %s)", filename.c_str(), std::strerror(errno));
|
|
}
|
|
}
|
|
|
|
m_buffer[m_size] = 0;
|
|
|
|
std::fclose(fp);
|
|
|
|
m_pos = 0;
|
|
m_lineNum = 1;
|
|
m_isStdin = isStdin;
|
|
}
|
|
|
|
CFile::CFile(CFile&& other) : m_filename(std::move(other.m_filename))
|
|
{
|
|
m_buffer = other.m_buffer;
|
|
m_pos = other.m_pos;
|
|
m_size = other.m_size;
|
|
m_lineNum = other.m_lineNum;
|
|
m_isStdin = other.m_isStdin;
|
|
|
|
other.m_buffer = NULL;
|
|
}
|
|
|
|
CFile::~CFile()
|
|
{
|
|
free(m_buffer);
|
|
}
|
|
|
|
void CFile::Preproc()
|
|
{
|
|
char stringChar = 0;
|
|
|
|
while (m_pos < m_size)
|
|
{
|
|
if (stringChar)
|
|
{
|
|
if (m_buffer[m_pos] == stringChar)
|
|
{
|
|
std::putchar(stringChar);
|
|
m_pos++;
|
|
stringChar = 0;
|
|
}
|
|
else if (m_buffer[m_pos] == '\\' && m_buffer[m_pos + 1] == stringChar)
|
|
{
|
|
std::putchar('\\');
|
|
std::putchar(stringChar);
|
|
m_pos += 2;
|
|
}
|
|
else
|
|
{
|
|
if (m_buffer[m_pos] == '\n')
|
|
m_lineNum++;
|
|
std::putchar(m_buffer[m_pos]);
|
|
m_pos++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
TryConvertString();
|
|
TryConvertIncbin();
|
|
|
|
if (m_pos >= m_size)
|
|
break;
|
|
|
|
char c = m_buffer[m_pos++];
|
|
|
|
std::putchar(c);
|
|
|
|
if (c == '\n')
|
|
m_lineNum++;
|
|
else if (c == '"')
|
|
stringChar = '"';
|
|
else if (c == '\'')
|
|
stringChar = '\'';
|
|
}
|
|
}
|
|
}
|
|
|
|
bool CFile::ConsumeHorizontalWhitespace()
|
|
{
|
|
if (m_buffer[m_pos] == '\t' || m_buffer[m_pos] == ' ')
|
|
{
|
|
m_pos++;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool CFile::ConsumeNewline()
|
|
{
|
|
if (m_buffer[m_pos] == '\r' && m_buffer[m_pos + 1] == '\n')
|
|
{
|
|
m_pos += 2;
|
|
m_lineNum++;
|
|
std::putchar('\n');
|
|
return true;
|
|
}
|
|
|
|
if (m_buffer[m_pos] == '\n')
|
|
{
|
|
m_pos++;
|
|
m_lineNum++;
|
|
std::putchar('\n');
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void CFile::SkipWhitespace()
|
|
{
|
|
while (ConsumeHorizontalWhitespace() || ConsumeNewline())
|
|
;
|
|
}
|
|
|
|
void CFile::TryConvertString()
|
|
{
|
|
long oldPos = m_pos;
|
|
long oldLineNum = m_lineNum;
|
|
bool noTerminator = false;
|
|
|
|
if (m_buffer[m_pos] != '_' || (m_pos > 0 && IsIdentifierChar(m_buffer[m_pos - 1])))
|
|
return;
|
|
|
|
m_pos++;
|
|
|
|
if (m_buffer[m_pos] == '_')
|
|
{
|
|
noTerminator = true;
|
|
m_pos++;
|
|
}
|
|
|
|
SkipWhitespace();
|
|
|
|
if (m_buffer[m_pos] != '(')
|
|
{
|
|
m_pos = oldPos;
|
|
m_lineNum = oldLineNum;
|
|
return;
|
|
}
|
|
|
|
m_pos++;
|
|
|
|
SkipWhitespace();
|
|
|
|
std::printf("{ ");
|
|
|
|
while (1)
|
|
{
|
|
SkipWhitespace();
|
|
|
|
if (m_buffer[m_pos] == '"')
|
|
{
|
|
unsigned char s[kMaxStringLength];
|
|
int length;
|
|
StringParser stringParser(m_buffer, m_size);
|
|
|
|
try
|
|
{
|
|
m_pos += stringParser.ParseString(m_pos, s, length);
|
|
}
|
|
catch (std::runtime_error& e)
|
|
{
|
|
RaiseError(e.what());
|
|
}
|
|
|
|
for (int i = 0; i < length; i++)
|
|
printf("0x%02X, ", s[i]);
|
|
}
|
|
else if (m_buffer[m_pos] == ')')
|
|
{
|
|
m_pos++;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
if (m_pos >= m_size)
|
|
RaiseError("unexpected EOF");
|
|
if (IsAsciiPrintable(m_buffer[m_pos]))
|
|
RaiseError("unexpected character '%c'", m_buffer[m_pos]);
|
|
else
|
|
RaiseError("unexpected character '\\x%02X'", m_buffer[m_pos]);
|
|
}
|
|
}
|
|
|
|
if (noTerminator)
|
|
std::printf(" }");
|
|
else
|
|
std::printf("0xFF }");
|
|
}
|
|
|
|
bool CFile::CheckIdentifier(const std::string& ident)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ident.length() && m_pos + i < (unsigned)m_size; i++)
|
|
if (ident[i] != m_buffer[m_pos + i])
|
|
return false;
|
|
|
|
return (i == ident.length());
|
|
}
|
|
|
|
std::unique_ptr<unsigned char[]> CFile::ReadWholeFile(const std::string& path, int& size)
|
|
{
|
|
FILE* fp = std::fopen(path.c_str(), "rb");
|
|
|
|
if (fp == nullptr)
|
|
RaiseError("Failed to open \"%s\" for reading.\n", path.c_str());
|
|
|
|
std::fseek(fp, 0, SEEK_END);
|
|
|
|
size = std::ftell(fp);
|
|
|
|
std::unique_ptr<unsigned char[]> buffer = std::unique_ptr<unsigned char[]>(new unsigned char[size]);
|
|
|
|
std::rewind(fp);
|
|
|
|
if (std::fread(buffer.get(), size, 1, fp) != 1)
|
|
RaiseError("Failed to read \"%s\".\n", path.c_str());
|
|
|
|
std::fclose(fp);
|
|
|
|
return buffer;
|
|
}
|
|
|
|
int ExtractData(const std::unique_ptr<unsigned char[]>& buffer, int offset, int size)
|
|
{
|
|
switch (size)
|
|
{
|
|
case 1:
|
|
return buffer[offset];
|
|
case 2:
|
|
return (buffer[offset + 1] << 8)
|
|
| buffer[offset];
|
|
case 4:
|
|
return (buffer[offset + 3] << 24)
|
|
| (buffer[offset + 2] << 16)
|
|
| (buffer[offset + 1] << 8)
|
|
| buffer[offset];
|
|
default:
|
|
FATAL_ERROR("Invalid size passed to ExtractData.\n");
|
|
}
|
|
}
|
|
|
|
void CFile::TryConvertIncbin()
|
|
{
|
|
std::string idents[6] = { "INCBIN_S8", "INCBIN_U8", "INCBIN_S16", "INCBIN_U16", "INCBIN_S32", "INCBIN_U32" };
|
|
int incbinType = -1;
|
|
|
|
for (int i = 0; i < 6; i++)
|
|
{
|
|
if (CheckIdentifier(idents[i]))
|
|
{
|
|
incbinType = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (incbinType == -1)
|
|
return;
|
|
|
|
int size = 1 << (incbinType / 2);
|
|
bool isSigned = ((incbinType % 2) == 0);
|
|
|
|
long oldPos = m_pos;
|
|
long oldLineNum = m_lineNum;
|
|
|
|
m_pos += idents[incbinType].length();
|
|
|
|
SkipWhitespace();
|
|
|
|
if (m_buffer[m_pos] != '(')
|
|
{
|
|
m_pos = oldPos;
|
|
m_lineNum = oldLineNum;
|
|
return;
|
|
}
|
|
|
|
m_pos++;
|
|
|
|
std::printf("{");
|
|
|
|
while (true)
|
|
{
|
|
SkipWhitespace();
|
|
|
|
if (m_buffer[m_pos] != '"')
|
|
RaiseError("expected double quote");
|
|
|
|
m_pos++;
|
|
|
|
int startPos = m_pos;
|
|
|
|
while (m_buffer[m_pos] != '"')
|
|
{
|
|
if (m_buffer[m_pos] == 0)
|
|
{
|
|
if (m_pos >= m_size)
|
|
RaiseError("unexpected EOF in path string");
|
|
else
|
|
RaiseError("unexpected null character in path string");
|
|
}
|
|
|
|
if (m_buffer[m_pos] == '\r' || m_buffer[m_pos] == '\n')
|
|
RaiseError("unexpected end of line character in path string");
|
|
|
|
if (m_buffer[m_pos] == '\\')
|
|
RaiseError("unexpected escape in path string");
|
|
|
|
m_pos++;
|
|
}
|
|
|
|
std::string path(&m_buffer[startPos], m_pos - startPos);
|
|
|
|
m_pos++;
|
|
|
|
int fileSize;
|
|
std::unique_ptr<unsigned char[]> buffer = ReadWholeFile(path, fileSize);
|
|
|
|
if ((fileSize % size) != 0)
|
|
RaiseError("Size %d doesn't evenly divide file size %d.\n", size, fileSize);
|
|
|
|
int count = fileSize / size;
|
|
int offset = 0;
|
|
|
|
for (int i = 0; i < count; i++)
|
|
{
|
|
int data = ExtractData(buffer, offset, size);
|
|
offset += size;
|
|
|
|
if (isSigned)
|
|
std::printf("%d,", data);
|
|
else
|
|
std::printf("%uu,", data);
|
|
}
|
|
|
|
SkipWhitespace();
|
|
|
|
if (m_buffer[m_pos] != ',')
|
|
break;
|
|
|
|
m_pos++;
|
|
}
|
|
|
|
if (m_buffer[m_pos] != ')')
|
|
RaiseError("expected ')'");
|
|
|
|
m_pos++;
|
|
|
|
std::printf("}");
|
|
}
|
|
|
|
// Reports a diagnostic message.
|
|
void CFile::ReportDiagnostic(const char* type, const char* format, std::va_list args)
|
|
{
|
|
const int bufferSize = 1024;
|
|
char buffer[bufferSize];
|
|
std::vsnprintf(buffer, bufferSize, format, args);
|
|
std::fprintf(stderr, "%s:%ld: %s: %s\n", m_filename.c_str(), m_lineNum, type, buffer);
|
|
}
|
|
|
|
#define DO_REPORT(type) \
|
|
do \
|
|
{ \
|
|
std::va_list args; \
|
|
va_start(args, format); \
|
|
ReportDiagnostic(type, format, args); \
|
|
va_end(args); \
|
|
} while (0)
|
|
|
|
// Reports an error diagnostic and terminates the program.
|
|
void CFile::RaiseError(const char* format, ...)
|
|
{
|
|
DO_REPORT("error");
|
|
std::exit(1);
|
|
}
|
|
|
|
// Reports a warning diagnostic.
|
|
void CFile::RaiseWarning(const char* format, ...)
|
|
{
|
|
DO_REPORT("warning");
|
|
}
|