Decompiled some item related functions (#42)

* decompile sub_8091290

* decompile sub_80912c8

* rename functions / struct field

* more names

* decompile 80913A0

* decompile GetItemMove

* decompile sub_80913E0

* rename function

* decompile CanSellItem function

* rename inventory struct

* add some item check functions

* fix renaming stuff

* this file shouldnt have been here

* forgot merge conflict

* decompile more item functions

* rename some stuff

* fix HM/TM naming

* Update src/code_801AFA4.c

Use enum value for USED_TM

* Fix incorrect value

Co-authored-by: Seth Barberee <seth.barberee@gmail.com>

1 files changed, 532 insertions, 532 deletions

diff --git a/tools/preproc/asm_file.cpp b/tools/preproc/asm_file.cpp
index 7756cad..ce0bf31 100644
--- a/tools/preproc/asm_file.cpp
+++ b/tools/preproc/asm_file.cpp
@@ -1,532 +1,532 @@
-// 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 "preproc.h"
-#include "asm_file.h"
-#include "char_util.h"
-#include "utf8.h"
-#include "string_parser.h"
-
-AsmFile::AsmFile(std::string filename) : m_filename(filename)
-{
-    FILE *fp = std::fopen(filename.c_str(), "rb");
-
-    if (fp == NULL)
-        FATAL_ERROR("Failed to open \"%s\" for reading.\n", filename.c_str());
-
-    std::fseek(fp, 0, SEEK_END);
-
-    m_size = std::ftell(fp);
-
-    if (m_size < 0)
-        FATAL_ERROR("File size of \"%s\" is less than zero.\n", filename.c_str());
-
-    m_buffer = new char[m_size + 1];
-
-    std::rewind(fp);
-
-    if (std::fread(m_buffer, m_size, 1, fp) != 1)
-        FATAL_ERROR("Failed to read \"%s\".\n", filename.c_str());
-
-    m_buffer[m_size] = 0;
-
-    std::fclose(fp);
-
-    m_pos = 0;
-    m_lineNum = 1;
-    m_lineStart = 0;
-
-    RemoveComments();
-}
-
-AsmFile::AsmFile(AsmFile&& 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_lineStart = other.m_lineStart;
-
-    other.m_buffer = nullptr;
-}
-
-AsmFile::~AsmFile()
-{
-    delete[] m_buffer;
-}
-
-// Removes comments to simplify further processing.
-// It stops upon encountering a null character,
-// which may or may not be the end of file marker.
-// If it's not, the error will be caught later.
-void AsmFile::RemoveComments()
-{
-    long pos = 0;
-    char stringChar = 0;
-
-    for (;;)
-    {
-        if (m_buffer[pos] == 0)
-            return;
-
-        if (stringChar != 0)
-        {
-            if (m_buffer[pos] == '\\' && m_buffer[pos + 1] == stringChar)
-            {
-                pos += 2;
-            }
-            else
-            {
-                if (m_buffer[pos] == stringChar)
-                    stringChar = 0;
-                pos++;
-            }
-        }
-        else if (m_buffer[pos] == '@' && (pos == 0 || m_buffer[pos - 1] != '\\'))
-        {
-            while (m_buffer[pos] != '\n' && m_buffer[pos] != 0)
-                m_buffer[pos++] = ' ';
-        }
-        else if (m_buffer[pos] == '/' && m_buffer[pos + 1] == '*')
-        {
-            m_buffer[pos++] = ' ';
-            m_buffer[pos++] = ' ';
-
-            for (;;)
-            {
-                if (m_buffer[pos] == 0)
-                    return;
-
-                if (m_buffer[pos] == '*' && m_buffer[pos + 1] == '/')
-                {
-                    m_buffer[pos++] = ' ';
-                    m_buffer[pos++] = ' ';
-                    break;
-                }
-                else
-                {
-                    if (m_buffer[pos] != '\n')
-                        m_buffer[pos] = ' ';
-                    pos++;
-                }
-            }
-        }
-        else
-        {
-            if (m_buffer[pos] == '"' || m_buffer[pos] == '\'')
-                stringChar = m_buffer[pos];
-            pos++;
-        }
-    }
-}
-
-// Checks if we're at a particular directive and if so, consumes it.
-// Returns whether the directive was found.
-bool AsmFile::CheckForDirective(std::string name)
-{
-    long i;
-    long length = static_cast<long>(name.length());
-
-    for (i = 0; i < length && m_pos + i < m_size; i++)
-        if (name[i] != m_buffer[m_pos + i])
-            return false;
-
-    if (i < length)
-        return false;
-
-    m_pos += length;
-
-    return true;
-}
-
-// Checks if we're at a known directive and if so, consumes it.
-// Returns which directive was found.
-Directive AsmFile::GetDirective()
-{
-    SkipWhitespace();
-
-    if (CheckForDirective(".include"))
-        return Directive::Include;
-    else if (CheckForDirective(".string"))
-        return Directive::String;
-    else if (CheckForDirective(".braille"))
-        return Directive::Braille;
-    else
-        return Directive::Unknown;
-}
-
-// Checks if we're at label that ends with '::'.
-// Returns the name if so and an empty string if not.
-std::string AsmFile::GetGlobalLabel()
-{
-    long start = m_pos;
-    long pos = m_pos;
-
-    if (IsIdentifierStartingChar(m_buffer[pos]))
-    {
-        pos++;
-
-        while (IsIdentifierChar(m_buffer[pos]))
-            pos++;
-    }
-
-    if (m_buffer[pos] == ':' && m_buffer[pos + 1] == ':')
-    {
-        m_pos = pos + 2;
-        ExpectEmptyRestOfLine();
-        return std::string(&m_buffer[start], pos - start);
-    }
-
-    return std::string();
-}
-
-// Skips tabs and spaces.
-void AsmFile::SkipWhitespace()
-{
-    while (m_buffer[m_pos] == '\t' || m_buffer[m_pos] == ' ')
-        m_pos++;
-}
-
-// Reads include path.
-std::string AsmFile::ReadPath()
-{
-    SkipWhitespace();
-
-    if (m_buffer[m_pos] != '"')
-        RaiseError("expected file path");
-
-    m_pos++;
-
-    int length = 0;
-    long startPos = m_pos;
-
-    while (m_buffer[m_pos] != '"')
-    {
-        unsigned char c = m_buffer[m_pos++];
-
-        if (c == 0)
-        {
-            if (m_pos >= m_size)
-                RaiseError("unexpected EOF in include string");
-            else
-                RaiseError("unexpected null character in include string");
-        }
-
-        if (!IsAsciiPrintable(c))
-            RaiseError("unexpected character '\\x%02X' in include string", c);
-
-        // Don't bother allowing any escape sequences.
-        if (c == '\\')
-        {
-            c = m_buffer[m_pos];
-            RaiseError("unexpected escape '\\%c' in include string", c);
-        }
-
-        length++;
-
-        if (length > kMaxPath)
-            RaiseError("path is too long");
-    }
-
-    m_pos++; // Go past the right quote.
-
-    ExpectEmptyRestOfLine();
-
-    return std::string(&m_buffer[startPos], length);
-}
-
-// Reads a charmap string.
-int AsmFile::ReadString(unsigned char* s)
-{
-    SkipWhitespace();
-
-    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());
-    }
-
-    SkipWhitespace();
-
-    if (ConsumeComma())
-    {
-        SkipWhitespace();
-        int padLength = ReadPadLength();
-
-        while (length < padLength)
-        {
-            s[length++] = 0;
-        }
-    }
-
-    ExpectEmptyRestOfLine();
-
-    return length;
-}
-
-int AsmFile::ReadBraille(unsigned char* s)
-{
-    static std::map<char, unsigned char> encoding =
-    {
-        { 'A', 0x01 },
-        { 'B', 0x05 },
-        { 'C', 0x03 },
-        { 'D', 0x0B },
-        { 'E', 0x09 },
-        { 'F', 0x07 },
-        { 'G', 0x0F },
-        { 'H', 0x0D },
-        { 'I', 0x06 },
-        { 'J', 0x0E },
-        { 'K', 0x11 },
-        { 'L', 0x15 },
-        { 'M', 0x13 },
-        { 'N', 0x1B },
-        { 'O', 0x19 },
-        { 'P', 0x17 },
-        { 'Q', 0x1F },
-        { 'R', 0x1D },
-        { 'S', 0x16 },
-        { 'T', 0x1E },
-        { 'U', 0x31 },
-        { 'V', 0x35 },
-        { 'W', 0x2E },
-        { 'X', 0x33 },
-        { 'Y', 0x3B },
-        { 'Z', 0x39 },
-        { ' ', 0x00 },
-        { ',', 0x04 },
-        { '.', 0x2C },
-        { '$', 0xFF },
-    };
-
-    SkipWhitespace();
-
-    int length = 0;
-
-    if (m_buffer[m_pos] != '"')
-        RaiseError("expected braille string literal");
-
-    m_pos++;
-
-    while (m_buffer[m_pos] != '"')
-    {
-        if (length == kMaxStringLength)
-            RaiseError("mapped string longer than %d bytes", kMaxStringLength);
-
-        if (m_buffer[m_pos] == '\\' && m_buffer[m_pos + 1] == 'n')
-        {
-            s[length++] = 0xFE;
-            m_pos += 2;
-        }
-        else
-        {
-            char c = m_buffer[m_pos];
-
-            if (encoding.count(c) == 0)
-            {
-                if (IsAsciiPrintable(c))
-                    RaiseError("character '%c' not valid in braille string", m_buffer[m_pos]);
-                else
-                    RaiseError("character '\\x%02X' not valid in braille string", m_buffer[m_pos]);
-            }
-
-            s[length++] = encoding[c];
-            m_pos++;
-        }
-    }
-
-    m_pos++; // Go past the right quote.
-
-    ExpectEmptyRestOfLine();
-
-    return length;
-}
-
-// If we're at a comma, consumes it.
-// Returns whether a comma was found.
-bool AsmFile::ConsumeComma()
-{
-    if (m_buffer[m_pos] == ',')
-    {
-        m_pos++;
-        return true;
-    }
-
-    return false;
-}
-
-// Converts digit character to numerical value.
-static int ConvertDigit(char c, int radix)
-{
-    int digit;
-
-    if (c >= '0' && c <= '9')
-        digit = c - '0';
-    else if (c >= 'A' && c <= 'F')
-        digit = 10 + c - 'A';
-    else if (c >= 'a' && c <= 'f')
-        digit = 10 + c - 'a';
-    else
-        return -1;
-
-    return (digit < radix) ? digit : -1;
-}
-
-// Reads an integer. If the integer is greater than maxValue, it returns -1.
-int AsmFile::ReadPadLength()
-{
-    if (!IsAsciiDigit(m_buffer[m_pos]))
-        RaiseError("expected integer");
-
-    int radix = 10;
-
-    if (m_buffer[m_pos] == '0' && m_buffer[m_pos + 1] == 'x')
-    {
-        radix = 16;
-        m_pos += 2;
-    }
-
-    unsigned n = 0;
-    int digit;
-
-    while ((digit = ConvertDigit(m_buffer[m_pos], radix)) != -1)
-    {
-        n = n * radix + digit;
-
-        if (n > kMaxStringLength)
-            RaiseError("pad length greater than maximum length (%d)", kMaxStringLength);
-
-        m_pos++;
-    }
-
-    return n;
-}
-
-// Outputs the current line and moves to the next one.
-void AsmFile::OutputLine()
-{
-    while (m_buffer[m_pos] != '\n' && m_buffer[m_pos] != 0)
-        m_pos++;
-
-    if (m_buffer[m_pos] == 0)
-    {
-        if (m_pos >= m_size)
-        {
-            RaiseWarning("file doesn't end with newline");
-            puts(&m_buffer[m_lineStart]);
-        }
-        else
-        {
-            RaiseError("unexpected null character");
-        }
-    }
-    else
-    {
-        m_buffer[m_pos] = 0;
-        puts(&m_buffer[m_lineStart]);
-        m_buffer[m_pos] = '\n';
-        m_pos++;
-        m_lineStart = m_pos;
-        m_lineNum++;
-    }
-}
-
-// Asserts that the rest of the line is empty and moves to the next one.
-void AsmFile::ExpectEmptyRestOfLine()
-{
-    SkipWhitespace();
-
-    if (m_buffer[m_pos] == 0)
-    {
-        if (m_pos >= m_size)
-            RaiseWarning("file doesn't end with newline");
-        else
-            RaiseError("unexpected null character");
-    }
-    else if (m_buffer[m_pos] == '\n')
-    {
-        m_pos++;
-        m_lineStart = m_pos;
-        m_lineNum++;
-    }
-    else if (m_buffer[m_pos] == '\r' && m_buffer[m_pos + 1] == '\n')
-    {
-        m_pos += 2;
-        m_lineStart = m_pos;
-        m_lineNum++;
-    }
-    else
-    {
-        RaiseError("junk at end of line");
-    }
-}
-
-// Checks if we're at the end of the file.
-bool AsmFile::IsAtEnd()
-{
-    return (m_pos >= m_size);
-}
-
-// Output the current location to set gas's logical file and line numbers.
-void AsmFile::OutputLocation()
-{
-    std::printf("# %ld \"%s\"\n", m_lineNum, m_filename.c_str());
-}
-
-// Reports a diagnostic message.
-void AsmFile::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 AsmFile::RaiseError(const char* format, ...)
-{
-    DO_REPORT("error");
-    std::exit(1);
-}
-
-// Reports a warning diagnostic.
-void AsmFile::RaiseWarning(const char* format, ...)
-{
-    DO_REPORT("warning");
-}
+// 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 "preproc.h"

+#include "asm_file.h"

+#include "char_util.h"

+#include "utf8.h"

+#include "string_parser.h"

+

+AsmFile::AsmFile(std::string filename) : m_filename(filename)

+{

+    FILE *fp = std::fopen(filename.c_str(), "rb");

+

+    if (fp == NULL)

+        FATAL_ERROR("Failed to open \"%s\" for reading.\n", filename.c_str());

+

+    std::fseek(fp, 0, SEEK_END);

+

+    m_size = std::ftell(fp);

+

+    if (m_size < 0)

+        FATAL_ERROR("File size of \"%s\" is less than zero.\n", filename.c_str());

+

+    m_buffer = new char[m_size + 1];

+

+    std::rewind(fp);

+

+    if (std::fread(m_buffer, m_size, 1, fp) != 1)

+        FATAL_ERROR("Failed to read \"%s\".\n", filename.c_str());

+

+    m_buffer[m_size] = 0;

+

+    std::fclose(fp);

+

+    m_pos = 0;

+    m_lineNum = 1;

+    m_lineStart = 0;

+

+    RemoveComments();

+}

+

+AsmFile::AsmFile(AsmFile&& 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_lineStart = other.m_lineStart;

+

+    other.m_buffer = nullptr;

+}

+

+AsmFile::~AsmFile()

+{

+    delete[] m_buffer;

+}

+

+// Removes comments to simplify further processing.

+// It stops upon encountering a null character,

+// which may or may not be the end of file marker.

+// If it's not, the error will be caught later.

+void AsmFile::RemoveComments()

+{

+    long pos = 0;

+    char stringChar = 0;

+

+    for (;;)

+    {

+        if (m_buffer[pos] == 0)

+            return;

+

+        if (stringChar != 0)

+        {

+            if (m_buffer[pos] == '\\' && m_buffer[pos + 1] == stringChar)

+            {

+                pos += 2;

+            }

+            else

+            {

+                if (m_buffer[pos] == stringChar)

+                    stringChar = 0;

+                pos++;

+            }

+        }

+        else if (m_buffer[pos] == '@' && (pos == 0 || m_buffer[pos - 1] != '\\'))

+        {

+            while (m_buffer[pos] != '\n' && m_buffer[pos] != 0)

+                m_buffer[pos++] = ' ';

+        }

+        else if (m_buffer[pos] == '/' && m_buffer[pos + 1] == '*')

+        {

+            m_buffer[pos++] = ' ';

+            m_buffer[pos++] = ' ';

+

+            for (;;)

+            {

+                if (m_buffer[pos] == 0)

+                    return;

+

+                if (m_buffer[pos] == '*' && m_buffer[pos + 1] == '/')

+                {

+                    m_buffer[pos++] = ' ';

+                    m_buffer[pos++] = ' ';

+                    break;

+                }

+                else

+                {

+                    if (m_buffer[pos] != '\n')

+                        m_buffer[pos] = ' ';

+                    pos++;

+                }

+            }

+        }

+        else

+        {

+            if (m_buffer[pos] == '"' || m_buffer[pos] == '\'')

+                stringChar = m_buffer[pos];

+            pos++;

+        }

+    }

+}

+

+// Checks if we're at a particular directive and if so, consumes it.

+// Returns whether the directive was found.

+bool AsmFile::CheckForDirective(std::string name)

+{

+    long i;

+    long length = static_cast<long>(name.length());

+

+    for (i = 0; i < length && m_pos + i < m_size; i++)

+        if (name[i] != m_buffer[m_pos + i])

+            return false;

+

+    if (i < length)

+        return false;

+

+    m_pos += length;

+

+    return true;

+}

+

+// Checks if we're at a known directive and if so, consumes it.

+// Returns which directive was found.

+Directive AsmFile::GetDirective()

+{

+    SkipWhitespace();

+

+    if (CheckForDirective(".include"))

+        return Directive::Include;

+    else if (CheckForDirective(".string"))

+        return Directive::String;

+    else if (CheckForDirective(".braille"))

+        return Directive::Braille;

+    else

+        return Directive::Unknown;

+}

+

+// Checks if we're at label that ends with '::'.

+// Returns the name if so and an empty string if not.

+std::string AsmFile::GetGlobalLabel()

+{

+    long start = m_pos;

+    long pos = m_pos;

+

+    if (IsIdentifierStartingChar(m_buffer[pos]))

+    {

+        pos++;

+

+        while (IsIdentifierChar(m_buffer[pos]))

+            pos++;

+    }

+

+    if (m_buffer[pos] == ':' && m_buffer[pos + 1] == ':')

+    {

+        m_pos = pos + 2;

+        ExpectEmptyRestOfLine();

+        return std::string(&m_buffer[start], pos - start);

+    }

+

+    return std::string();

+}

+

+// Skips tabs and spaces.

+void AsmFile::SkipWhitespace()

+{

+    while (m_buffer[m_pos] == '\t' || m_buffer[m_pos] == ' ')

+        m_pos++;

+}

+

+// Reads include path.

+std::string AsmFile::ReadPath()

+{

+    SkipWhitespace();

+

+    if (m_buffer[m_pos] != '"')

+        RaiseError("expected file path");

+

+    m_pos++;

+

+    int length = 0;

+    long startPos = m_pos;

+

+    while (m_buffer[m_pos] != '"')

+    {

+        unsigned char c = m_buffer[m_pos++];

+

+        if (c == 0)

+        {

+            if (m_pos >= m_size)

+                RaiseError("unexpected EOF in include string");

+            else

+                RaiseError("unexpected null character in include string");

+        }

+

+        if (!IsAsciiPrintable(c))

+            RaiseError("unexpected character '\\x%02X' in include string", c);

+

+        // Don't bother allowing any escape sequences.

+        if (c == '\\')

+        {

+            c = m_buffer[m_pos];

+            RaiseError("unexpected escape '\\%c' in include string", c);

+        }

+

+        length++;

+

+        if (length > kMaxPath)

+            RaiseError("path is too long");

+    }

+

+    m_pos++; // Go past the right quote.

+

+    ExpectEmptyRestOfLine();

+

+    return std::string(&m_buffer[startPos], length);

+}

+

+// Reads a charmap string.

+int AsmFile::ReadString(unsigned char* s)

+{

+    SkipWhitespace();

+

+    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());

+    }

+

+    SkipWhitespace();

+

+    if (ConsumeComma())

+    {

+        SkipWhitespace();

+        int padLength = ReadPadLength();

+

+        while (length < padLength)

+        {

+            s[length++] = 0;

+        }

+    }

+

+    ExpectEmptyRestOfLine();

+

+    return length;

+}

+

+int AsmFile::ReadBraille(unsigned char* s)

+{

+    static std::map<char, unsigned char> encoding =

+    {

+        { 'A', 0x01 },

+        { 'B', 0x05 },

+        { 'C', 0x03 },

+        { 'D', 0x0B },

+        { 'E', 0x09 },

+        { 'F', 0x07 },

+        { 'G', 0x0F },

+        { 'H', 0x0D },

+        { 'I', 0x06 },

+        { 'J', 0x0E },

+        { 'K', 0x11 },

+        { 'L', 0x15 },

+        { 'M', 0x13 },

+        { 'N', 0x1B },

+        { 'O', 0x19 },

+        { 'P', 0x17 },

+        { 'Q', 0x1F },

+        { 'R', 0x1D },

+        { 'S', 0x16 },

+        { 'T', 0x1E },

+        { 'U', 0x31 },

+        { 'V', 0x35 },

+        { 'W', 0x2E },

+        { 'X', 0x33 },

+        { 'Y', 0x3B },

+        { 'Z', 0x39 },

+        { ' ', 0x00 },

+        { ',', 0x04 },

+        { '.', 0x2C },

+        { '$', 0xFF },

+    };

+

+    SkipWhitespace();

+

+    int length = 0;

+

+    if (m_buffer[m_pos] != '"')

+        RaiseError("expected braille string literal");

+

+    m_pos++;

+

+    while (m_buffer[m_pos] != '"')

+    {

+        if (length == kMaxStringLength)

+            RaiseError("mapped string longer than %d bytes", kMaxStringLength);

+

+        if (m_buffer[m_pos] == '\\' && m_buffer[m_pos + 1] == 'n')

+        {

+            s[length++] = 0xFE;

+            m_pos += 2;

+        }

+        else

+        {

+            char c = m_buffer[m_pos];

+

+            if (encoding.count(c) == 0)

+            {

+                if (IsAsciiPrintable(c))

+                    RaiseError("character '%c' not valid in braille string", m_buffer[m_pos]);

+                else

+                    RaiseError("character '\\x%02X' not valid in braille string", m_buffer[m_pos]);

+            }

+

+            s[length++] = encoding[c];

+            m_pos++;

+        }

+    }

+

+    m_pos++; // Go past the right quote.

+

+    ExpectEmptyRestOfLine();

+

+    return length;

+}

+

+// If we're at a comma, consumes it.

+// Returns whether a comma was found.

+bool AsmFile::ConsumeComma()

+{

+    if (m_buffer[m_pos] == ',')

+    {

+        m_pos++;

+        return true;

+    }

+

+    return false;

+}

+

+// Converts digit character to numerical value.

+static int ConvertDigit(char c, int radix)

+{

+    int digit;

+

+    if (c >= '0' && c <= '9')

+        digit = c - '0';

+    else if (c >= 'A' && c <= 'F')

+        digit = 10 + c - 'A';

+    else if (c >= 'a' && c <= 'f')

+        digit = 10 + c - 'a';

+    else

+        return -1;

+

+    return (digit < radix) ? digit : -1;

+}

+

+// Reads an integer. If the integer is greater than maxValue, it returns -1.

+int AsmFile::ReadPadLength()

+{

+    if (!IsAsciiDigit(m_buffer[m_pos]))

+        RaiseError("expected integer");

+

+    int radix = 10;

+

+    if (m_buffer[m_pos] == '0' && m_buffer[m_pos + 1] == 'x')

+    {

+        radix = 16;

+        m_pos += 2;

+    }

+

+    unsigned n = 0;

+    int digit;

+

+    while ((digit = ConvertDigit(m_buffer[m_pos], radix)) != -1)

+    {

+        n = n * radix + digit;

+

+        if (n > kMaxStringLength)

+            RaiseError("pad length greater than maximum length (%d)", kMaxStringLength);

+

+        m_pos++;

+    }

+

+    return n;

+}

+

+// Outputs the current line and moves to the next one.

+void AsmFile::OutputLine()

+{

+    while (m_buffer[m_pos] != '\n' && m_buffer[m_pos] != 0)

+        m_pos++;

+

+    if (m_buffer[m_pos] == 0)

+    {

+        if (m_pos >= m_size)

+        {

+            RaiseWarning("file doesn't end with newline");

+            puts(&m_buffer[m_lineStart]);

+        }

+        else

+        {

+            RaiseError("unexpected null character");

+        }

+    }

+    else

+    {

+        m_buffer[m_pos] = 0;

+        puts(&m_buffer[m_lineStart]);

+        m_buffer[m_pos] = '\n';

+        m_pos++;

+        m_lineStart = m_pos;

+        m_lineNum++;

+    }

+}

+

+// Asserts that the rest of the line is empty and moves to the next one.

+void AsmFile::ExpectEmptyRestOfLine()

+{

+    SkipWhitespace();

+

+    if (m_buffer[m_pos] == 0)

+    {

+        if (m_pos >= m_size)

+            RaiseWarning("file doesn't end with newline");

+        else

+            RaiseError("unexpected null character");

+    }

+    else if (m_buffer[m_pos] == '\n')

+    {

+        m_pos++;

+        m_lineStart = m_pos;

+        m_lineNum++;

+    }

+    else if (m_buffer[m_pos] == '\r' && m_buffer[m_pos + 1] == '\n')

+    {

+        m_pos += 2;

+        m_lineStart = m_pos;

+        m_lineNum++;

+    }

+    else

+    {

+        RaiseError("junk at end of line");

+    }

+}

+

+// Checks if we're at the end of the file.

+bool AsmFile::IsAtEnd()

+{

+    return (m_pos >= m_size);

+}

+

+// Output the current location to set gas's logical file and line numbers.

+void AsmFile::OutputLocation()

+{

+    std::printf("# %ld \"%s\"\n", m_lineNum, m_filename.c_str());

+}

+

+// Reports a diagnostic message.

+void AsmFile::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 AsmFile::RaiseError(const char* format, ...)

+{

+    DO_REPORT("error");

+    std::exit(1);

+}

+

+// Reports a warning diagnostic.

+void AsmFile::RaiseWarning(const char* format, ...)

+{

+    DO_REPORT("warning");

+}