#include "CompilerTools.h"

static short lheaplockcount;
static void (*heaperror)();
static Allocator bheap;
static Allocator oheap;
static Allocator aheap;
static Allocator lheap;
static Allocator gheap;
long hash_name_id;
StringNode **name_hash_nodes;
void (*GListErrorProc)();

void CompilerGetPString(short index, unsigned char *str) {
    COS_GetPString(str, 10100, index);
}

void CompilerGetCString(short index, char *str) {
    COS_GetString(str, 10100, index);
}

unsigned char *CTool_CtoPstr(char *input) {
    char *work = input;
    int length = 0;
    int i;

    while (*work) {
        ++length;
        ++work;
    }

    for (i = length; i > 0; i--) {
        work[0] = work[-1];
        --work;
    }

    input[0] = length;
    return (unsigned char *) input;
}

static void GListError() {
    if (GListErrorProc)
        GListErrorProc();
}

int InitGList(GList *list, long capacity) {
    if ((list->data = COS_NewOSHandle(capacity)) == 0)
        if ((list->data = COS_NewHandle(capacity)) == 0)
            return -1;
    list->size = 0;
    list->expansion = capacity >> 1;
    list->capacity = capacity;
    return 0;
}

void FreeGList(GList *list) {
    if (list->data != 0) {
        COS_FreeHandle(list->data);
        list->data = 0;
    }
    list->capacity = 0;
    list->size = 0;
}

void LockGList(GList *list) {
    COS_LockHandleHi(list->data);
}

void UnlockGList(GList *list) {
    COS_UnlockHandle(list->data);
}

void ShrinkGList(GList *list) {
    COS_ResizeHandle(list->data, list->capacity = list->size);
}

void AppendGListData(GList *list, const void *data, long size) {
    if ((list->size + size) > list->capacity) {
        if (!COS_ResizeHandle(list->data, list->capacity += size + list->expansion))
            GListError();
    }

    memcpy(*list->data + list->size, data, size);
    list->size += size;
}

void AppendGListNoData(GList *list, long size) {
    if ((list->size + size) > list->capacity) {
        if (!COS_ResizeHandle(list->data, list->capacity += size + list->expansion))
            GListError();
    }

    list->size += size;
}

void AppendGListByte(GList *list, char v) {
    if ((list->size + 1) > list->capacity) {
        if (!COS_ResizeHandle(list->data, list->capacity += 1 + list->expansion))
            GListError();
    }

    (*list->data)[list->size++] = v;
}

void AppendGListWord(GList *list, short v) {
    char *p;

    if ((list->size + 2) > list->capacity) {
        if (!COS_ResizeHandle(list->data, list->capacity += 2 + list->expansion))
            GListError();
    }

    p = *list->data + list->size;
    list->size += 2;
    *(p++) = ((unsigned char *) &v)[0];
    *(p++) = ((unsigned char *) &v)[1];
}

void AppendGListTargetEndianWord(GList *list, short v) {
    char *p;

    if ((list->size + 2) > list->capacity) {
        if (!COS_ResizeHandle(list->data, list->capacity += 2 + list->expansion))
            GListError();
    }

    p = *list->data + list->size;
    list->size += 2;
    *(p++) = ((unsigned char *) &v)[0];
    *(p++) = ((unsigned char *) &v)[1];
}

void AppendGListLong(GList *list, long v) {
    char *p;

    if ((list->size + 4) > list->capacity) {
        if (!COS_ResizeHandle(list->data, list->capacity += 4 + list->expansion))
            GListError();
    }

    p = *list->data + list->size;
    list->size += 4;
    *(p++) = ((unsigned char *) &v)[0];
    *(p++) = ((unsigned char *) &v)[1];
    *(p++) = ((unsigned char *) &v)[2];
    *(p++) = ((unsigned char *) &v)[3];
}

void AppendGListTargetEndianLong(GList *list, long v) {
    char *p;

    if ((list->size + 4) > list->capacity) {
        if (!COS_ResizeHandle(list->data, list->capacity += 4 + list->expansion))
            GListError();
    }

    p = *list->data + list->size;
    list->size += 4;
    *(p++) = ((unsigned char *) &v)[0];
    *(p++) = ((unsigned char *) &v)[1];
    *(p++) = ((unsigned char *) &v)[2];
    *(p++) = ((unsigned char *) &v)[3];
}

void AppendGListID(GList *list, const char *str) {
    unsigned long size = strlen(str) + 1;
    if ((list->size + size) > list->capacity) {
        if (!COS_ResizeHandle(list->data, list->capacity += size + list->expansion))
            GListError();
    }

    memcpy(*list->data + list->size, str, size);
    list->size += size;
}

void AppendGListName(GList *list, const char *str) {
    unsigned long size = strlen(str);
    if ((list->size + size) > list->capacity) {
        if (!COS_ResizeHandle(list->data, list->capacity += size + list->expansion))
            GListError();
    }

    memcpy(*list->data + list->size, str, size);
    list->size += size;
}

void RemoveGListData(GList *list, long size) {
    list->size -= size;
    if (list->capacity > (list->size + list->expansion * 2))
        COS_ResizeHandle(list->data, list->capacity = list->size + list->expansion);
}

char GetGListByte(GList *list) {
    unsigned char *p;
    char r;

    p = (unsigned char *) (*list->data + list->size);
    list->size++;
    r = p[0];
    return r;
}

short GetGListWord(GList *list) {
    unsigned char *p;
    union { unsigned char bytes[2]; short s; } data;

    p = (unsigned char *) (*list->data + list->size);
    list->size += 2;
    data.bytes[0] = p[0];
    data.bytes[1] = p[1];
    return data.s;
}

long GetGListLong(GList *list) {
    unsigned char *p;
    union { unsigned char bytes[4]; long l; } data;

    p = (unsigned char *) (*list->data + list->size);
    list->size += 4;
    data.bytes[0] = p[0];
    data.bytes[1] = p[1];
    data.bytes[2] = p[2];
    data.bytes[3] = p[3];
    return data.l;
}

short GetGListID(GList *list, char *buf) {
    short len;
    char *p;

    len = 1;
    p = *list->data + list->size;
    while (*p) {
        *(buf++) = *(p++);
        len++;
    }

    *buf = *p;
    list->size += len;
    return len;
}

void GetGListData(GList *list, char *buf, long size) {
    memcpy(buf, *list->data + list->size, size);
    list->size += size;
}

static long hashpjw(const char *str) {
    unsigned long work = 0;
    unsigned long tmp;

    while (*str) {
        work = (work << 4) + *str;
        tmp = work & 0xF0000000;
        if (tmp) {
            work ^= (tmp >> 24);
            work ^= tmp;
        }
        str++;
    }

    return work % 0xFFFFFD;
}

static short PHash(const unsigned char *str) {
    short result;
    short counter;
    unsigned char work;
    const unsigned char *p;

    result = str[0] & 0xFF;
    p = &str[1];
    if (str[0] & 0xFF) {
        counter = result;
        work = 0;
        while (counter > 0) {
            work = (work >> 3) | (work << 5);
            work += *p;
            --counter;
            ++p;
        }

        result = (result << 8) | work;
    }

    return result & 0x7FF;
}

short CHash(const char *str) {
    /* not matching :( */
    unsigned char len;
    short result; // orig r4
    unsigned char work; // orig r5
    short counter; // orig r3

    // counter,result,work -> r3=work, r4=counter, r5=result
    // result,counter,work -> r3=work, r4=result, r5=counter
    // work,result,counter -> r3=work, r4=result, r5=counter
    // work,counter,result -> r3=work, r4=counter, r5=result
    // counter,work,result -> r3=work, r4=counter, r5=result
    // result,work,counter -> r3=work, r4=result, r5=counter

    // i am: r4 = result, r5 = counter, r3 = work

    len = strlen(str);
    result = len;
    if (len) {
        counter = len;
        work = 0;
        while (counter > 0) {
            work = (work >> 3) | (work << 5);
            work = work + *str;
            //work = *(str++) + (unsigned char) ((work >> 3) | (work << 5));
            counter--;
            str++;
        }
        result = result << 8;
        result = result | work;
    }

    return result & 0x7FF;
}

StringNode *GetHashNameNode(const char *str) {
    StringNode *node;
    short hash;

    hash = CHash(str);
    node = name_hash_nodes[hash];
    if (node == 0) {
        node = (StringNode *) galloc(strlen(str) + sizeof(StringNode));
        name_hash_nodes[hash] = node;
        node->next = 0;
        node->index = hash_name_id++;
        node->hash = hash;
        strcpy(node->data, str);
        return node;
    } else {
        for (;;) {
            if (strcmp(str, node->data) == 0) {
                if (node->index < 0)
                    node->index = hash_name_id++;
                return node;
            }

            if (node->next == 0) {
                node->next = (StringNode *) galloc(strlen(str) + sizeof(StringNode));
                node = node->next;
                node->next = 0;
                node->index = hash_name_id++;
                node->hash = hash;
                strcpy(node->data, str);
                return node;
            } else {
                node = node->next;
            }
        }
    }
}

StringNode *GetHashNameNodeHash(const char *str, short hash) {
    StringNode *node;

    node = name_hash_nodes[hash];
    if (node == 0) {
        node = (StringNode *) galloc(strlen(str) + sizeof(StringNode));
        name_hash_nodes[hash] = node;
        node->next = 0;
        node->index = hash_name_id++;
        node->hash = hash;
        strcpy(node->data, str);
        return node;
    } else {
        for (;;) {
            if (strcmp(str, node->data) == 0)
                return node;

            if (node->next == 0) {
                node->next = (StringNode *) galloc(strlen(str) + sizeof(StringNode));
                node = node->next;
                node->next = 0;
                node->index = hash_name_id++;
                node->hash = hash;
                strcpy(node->data, str);
                return node;
            } else {
                node = node->next;
            }
        }
    }
}

StringNode *GetHashNameNodeHash2(const char *str, short hash) {
    StringNode *node;

    node = name_hash_nodes[hash];
    if (node == 0) {
        node = (StringNode *) galloc(strlen(str) + sizeof(StringNode));
        name_hash_nodes[hash] = node;
        node->next = 0;
        node->index = -1;
        node->hash = hash;
        strcpy(node->data, str);
        return node;
    } else {
        for (;;) {
            if (strcmp(str, node->data) == 0)
                return node;

            if (node->next == 0) {
                node->next = (StringNode *) galloc(strlen(str) + sizeof(StringNode));
                node = node->next;
                node->next = 0;
                node->index = -1;
                node->hash = hash;
                strcpy(node->data, str);
                return node;
            } else {
                node = node->next;
            }
        }
    }
}

StringNode *GetHashNameNodeExport(const char *str) {
    // not matching
    StringNode *node;
    short hash;

    hash = CHash(str);
    if ((node = name_hash_nodes[hash]) == 0) {
        node = (StringNode *) galloc(strlen(str) + sizeof(StringNode));
        name_hash_nodes[hash] = node;
        node->next = 0;
        node->index = -1;
        node->hash = hash;
        strcpy(node->data, str);
        return node;
    } else {
        for (;;) {
            if (strcmp(str, node->data) == 0)
                return node;

            if (node->next == 0) {
                node->next = (StringNode *) galloc(strlen(str) + sizeof(StringNode));
                node = node->next;
                node->next = 0;
                node->index = -1;
                node->hash = hash;
                strcpy(node->data, str);
                return node;
            } else {
                node = node->next;
            }
        }
    }
}

long GetHashNameNodeExportID(StringNode *node) {
    if (node->index < 0)
        node->index = hash_name_id++;
    return node->index;
}

StringNode *GetHashNameNodeByID(long id) {
    StringNode *node;
    short i;

    for (i = 0; i < 2048; i++) {
        for (node = name_hash_nodes[i]; node; node = node->next) {
            if (id == node->index)
                return node;
        }
    }

    return 0;
}

void NameHashExportReset() {
    short i;
    StringNode *node;

    for (i = 0; i < 0x800; i++) {
        node = name_hash_nodes[i];
        while (node) {
            node->index = -1;
            node = node->next;
        }
    }

    hash_name_id = 1;
}

void NameHashWriteNameTable(GList *list) {
    StringNode *node;
    StringNode **nodes;
    short grp;
    int i;

    nodes = (StringNode **) galloc(sizeof(StringNode *) * hash_name_id);

    for (grp = 0; grp < 0x800; grp++) {
        node = name_hash_nodes[grp];
        while (node) {
            if (node->index > 0)
                nodes[node->index] = node;
            node = node->next;
        }
    }

    for (i = 1; i < hash_name_id; i++) {
        node = nodes[i];
        AppendGListWord(list, node->hash);
        AppendGListID(list, node->data);
    }

    if (list->size & 1)
        AppendGListByte(list, 0);
}

void NameHashWriteTargetEndianNameTable(GList *list) {
    StringNode *node;
    StringNode **nodes;
    short grp;
    int i;

    nodes = (StringNode **) galloc(sizeof(StringNode *) * hash_name_id);
    memclrw(nodes, sizeof(StringNode *) * hash_name_id);

    for (grp = 0; grp < 0x800; grp++) {
        node = name_hash_nodes[grp];
        while (node) {
            if (node->index > 0)
                nodes[node->index] = node;
            node = node->next;
        }
    }

    for (i = 1; i < hash_name_id; i++) {
        node = nodes[i];
        if (node == 0) {
            AppendGListTargetEndianWord(list, 0);
            AppendGListID(list, "");
        } else {
            AppendGListTargetEndianWord(list, node->hash);
            AppendGListID(list, node->data);
        }
    }

    if (list->size & 1)
        AppendGListByte(list, 0);
}

void InitNameHash() {
    name_hash_nodes = (StringNode **) galloc(0x800 * sizeof(StringNode *));
    memclrw(name_hash_nodes, 0x800 * sizeof(StringNode *));
    hash_name_id = 1;
}

long CTool_TotalHeapSize() {
    long total = 0;
    AllocatorBlock *block;

    for (block = gheap.blockList; block; block = block->nextBlock) {
        total += block->size;
    }
    for (block = lheap.blockList; block; block = block->nextBlock) {
        total += block->size;
    }
    for (block = aheap.blockList; block; block = block->nextBlock) {
        total += block->size;
    }
    for (block = oheap.blockList; block; block = block->nextBlock) {
        total += block->size;
    }
    for (block = bheap.blockList; block; block = block->nextBlock) {
        total += block->size;
    }

    return total;
}

static void getheapinfo(HeapInfo *result, Allocator *heap) {
    AllocatorBlock *block;

    result->_4 = heap->paddingSize;
    for (block = heap->blockList; block; block = block->nextBlock) {
        result->_8 += block->size - sizeof(AllocatorBlock);
        result->xx_C += block->remaining;
        result->_0++;
        if (block->remaining > result->_18)
            result->_18 = block->remaining;
    }

    result->_10 = result->_8 / result->_0;
    result->_14 = result->xx_C / result->_0;
}

void CTool_GetHeapInfo(HeapInfo *result, unsigned char heapID) {
    memclrw(result, sizeof(HeapInfo));

    switch (heapID) {
        case 0:
            getheapinfo(result, &gheap);
            break;
        case 1:
            getheapinfo(result, &lheap);
            break;
        case 2:
            getheapinfo(result, &aheap);
            break;
        case 3:
            getheapinfo(result, &oheap);
            break;
        case 4:
            getheapinfo(result, &bheap);
            break;
        case 5:
            getheapinfo(result, &gheap);
            getheapinfo(result, &lheap);
            getheapinfo(result, &aheap);
            getheapinfo(result, &oheap);
            getheapinfo(result, &bheap);
            break;
    }
}

static void MoreHeapSpace(Allocator *alloc, long size) {
    Handle blockHandle;
    long blockSize;
    AllocatorBlock *block;

    block = alloc->blockList;
    if (block) {
        alloc->lastBlockUsed->remaining = alloc->remaining;
        while (block) {
            if (block->remaining >= size)
                goto gotBlock;
            block = block->nextBlock;
        }
    }

    /* create new block */
    blockSize = size + alloc->paddingSize;
    if (systemHandles) {
        blockHandle = COS_NewOSHandle(blockSize << 1);
        if (blockHandle != 0)
            goto createdTempDoubleBlock;
        blockHandle = COS_NewOSHandle(blockSize);
        if (blockHandle != 0)
            goto createdBlock;
    }
    blockHandle = COS_NewHandle(blockSize);
    if (blockHandle != 0)
        goto createdBlock;

    if (heaperror)
        heaperror();
    return;

    createdTempDoubleBlock:
    blockSize <<= 1;
    goto createdBlock;
    createdBlock:
    COS_LockHandleHi(blockHandle);
    block = (AllocatorBlock *) *blockHandle;
    block->nextBlock = alloc->blockList;
    alloc->blockList = block;
    block->handle = blockHandle;
    block->size = blockSize;
    block->remaining = blockSize - sizeof(AllocatorBlock);
    gotBlock:
    alloc->lastBlockUsed = block;
    alloc->remaining = block->remaining;
    alloc->ptrToFreeArea = ((char *) block) + block->size - block->remaining;
}

int initheaps(heaperror_t failureCallback) {
    heaperror = 0;
    lheaplockcount = 0;

    memclrw(&gheap, sizeof(Allocator));
    memclrw(&lheap, sizeof(Allocator));
    memclrw(&aheap, sizeof(Allocator));
    memclrw(&oheap, sizeof(Allocator));
    memclrw(&bheap, sizeof(Allocator));

    gheap.paddingSize = 0x38000;
    lheap.paddingSize = 0x10000;
    aheap.paddingSize = 0x4000;
    oheap.paddingSize = 0x40000;
    bheap.paddingSize = 0x4000;

    MoreHeapSpace(&gheap, 0);
    MoreHeapSpace(&lheap, 0);
    MoreHeapSpace(&aheap, 0);
    MoreHeapSpace(&oheap, 0);
    MoreHeapSpace(&bheap, 0);

    gheap.paddingSize = 0x8000;
    lheap.paddingSize = 0x8000;

    heaperror = failureCallback;

    if (!gheap.lastBlockUsed || !lheap.lastBlockUsed || !aheap.lastBlockUsed || !oheap.lastBlockUsed || !bheap.lastBlockUsed)
        return -1;
    else
        return 0;
}

int initgheap(heaperror_t failureCallback) {
    heaperror = 0;
    lheaplockcount = 0;

    memclrw(&gheap, sizeof(Allocator));
    memclrw(&lheap, sizeof(Allocator));
    memclrw(&aheap, sizeof(Allocator));
    memclrw(&oheap, sizeof(Allocator));
    memclrw(&bheap, sizeof(Allocator));

    gheap.paddingSize = 0x38000;
    MoreHeapSpace(&gheap, 0);
    gheap.paddingSize = 0x8000;

    heaperror = failureCallback;

    if (!gheap.lastBlockUsed)
        return -1;
    else
        return 0;
}

heaperror_t getheaperror() {
    return heaperror;
}

void setheaperror(heaperror_t failureCallback) {
    heaperror = failureCallback;
}

static void relheap(Allocator *alloc) {
    AllocatorBlock *block;
    Handle handle;

    block = alloc->blockList;
    while (block) {
        handle = block->handle;
        block = block->nextBlock;
        COS_FreeHandle(handle);
    }

    memclrw(alloc, sizeof(Allocator));
}

void releaseheaps() {
    relheap(&gheap);
    relheap(&lheap);
    relheap(&aheap);
    relheap(&oheap);
    relheap(&bheap);
}

void releasegheap() {
    relheap(&gheap);
}

void releaseoheap() {
    relheap(&gheap);
    oheap.paddingSize = 0x40000;
    MoreHeapSpace(&oheap, 0);
}

char *galloc(long size) {
    long alignedSize;
    char *ptr;

    alignedSize = (size & ~7) + 8;
    if (gheap.remaining < alignedSize)
        MoreHeapSpace(&gheap, alignedSize);

    gheap.remaining -= alignedSize;
    ptr = (char *) gheap.ptrToFreeArea;
    gheap.ptrToFreeArea = ptr + alignedSize;
    return ptr;
}

char *lalloc(long size) {
    long alignedSize;
    char *ptr;

    alignedSize = (size & ~7) + 8;
    if (lheap.remaining < alignedSize)
        MoreHeapSpace(&lheap, alignedSize);

    lheap.remaining -= alignedSize;
    ptr = (char *) lheap.ptrToFreeArea;
    lheap.ptrToFreeArea = ptr + alignedSize;
    return ptr;
}

char *aalloc(long size) {
    long alignedSize;
    char *ptr;

    alignedSize = (size & ~7) + 8;
    if (aheap.remaining < alignedSize)
        MoreHeapSpace(&aheap, alignedSize);

    aheap.remaining -= alignedSize;
    ptr = (char *) aheap.ptrToFreeArea;
    aheap.ptrToFreeArea = ptr + alignedSize;
    return ptr;
}

char *oalloc(long size) {
    long alignedSize;
    char *ptr;

    alignedSize = (size & ~7) + 8;
    if (oheap.remaining < alignedSize)
        MoreHeapSpace(&oheap, alignedSize);

    oheap.remaining -= alignedSize;
    ptr = (char *) oheap.ptrToFreeArea;
    oheap.ptrToFreeArea = ptr + alignedSize;
    return ptr;
}

char *balloc(long size) {
    long alignedSize;
    char *ptr;

    alignedSize = (size & ~7) + 8;
    if (bheap.remaining < alignedSize)
        MoreHeapSpace(&bheap, alignedSize);

    bheap.remaining -= alignedSize;
    ptr = (char *) bheap.ptrToFreeArea;
    bheap.ptrToFreeArea = ptr + alignedSize;
    return ptr;
}

void locklheap() {
    lheaplockcount++;
}

void unlocklheap() {
    if (lheaplockcount > 0)
        --lheaplockcount;
}

void freelheap() {
    AllocatorBlock *block;

    if (lheaplockcount == 0) {
        block = lheap.blockList;
        lheap.lastBlockUsed = block;
        lheap.ptrToFreeArea = ((char *) block) + sizeof(AllocatorBlock);
        lheap.remaining = block->size - sizeof(AllocatorBlock);

        while (block) {
            block->remaining = block->size - sizeof(AllocatorBlock);
            block = block->nextBlock;
        }
    }
}

void freeaheap() {
    AllocatorBlock *block;

    block = aheap.blockList;
    aheap.lastBlockUsed = block;
    aheap.ptrToFreeArea = ((char *) block) + sizeof(AllocatorBlock);
    aheap.remaining = block->size - sizeof(AllocatorBlock);

    while (block) {
        block->remaining = block->size - sizeof(AllocatorBlock);
        block = block->nextBlock;
    }
}

void freeoheap() {
    AllocatorBlock *block;

    block = oheap.blockList;
    oheap.lastBlockUsed = block;
    oheap.ptrToFreeArea = ((char *) block) + sizeof(AllocatorBlock);
    oheap.remaining = block->size - sizeof(AllocatorBlock);

    while (block) {
        block->remaining = block->size - sizeof(AllocatorBlock);
        block = block->nextBlock;
    }
}

void freebheap() {
    AllocatorBlock *block;

    block = bheap.blockList;
    bheap.lastBlockUsed = block;
    bheap.ptrToFreeArea = ((char *) block) + sizeof(AllocatorBlock);
    bheap.remaining = block->size - sizeof(AllocatorBlock);

    while (block) {
        block->remaining = block->size - sizeof(AllocatorBlock);
        block = block->nextBlock;
    }
}

char *ScanHex(char *str, long *output, Boolean *overflow) {
    long work;
    int ch;

    work = 0;
    *overflow = 0;

    for (;;) {
        ch = *str;
        if (ch >= '0' && ch <= '9') {
            ch = ch - '0';
        } else if (ch >= 'A' && ch <= 'F') {
            ch = ch - 'A' + 10;
        } else if (ch >= 'a' && ch <= 'f') {
            ch = ch - 'a' + 10;
        } else {
            break;
        }

        if (work & 0xF0000000)
            *overflow = 1;
        work = (work << 4) | (short) ch;
        ++str;
    }

    *output = work;
    return str;
}

char *ScanOct(char *str, long *output, Boolean *overflow) {
    short digit;
    long work;

    work = 0;
    *overflow = 0;

    for (;;) {
        digit = *str - '0';
        if (digit >= 0 && digit <= 9) {
            if (digit >= 8) {
                *overflow = 1;
                ++str;
                break;
            }
        } else {
            break;
        }

        if (work & 0xE0000000)
            *overflow = 1;
        work = (work << 3) | digit;
        ++str;
    }

    *output = work;
    return str;
}

char *ScanDec(char *str, long *output, Boolean *overflow) {
    short digit;
    unsigned long work;

    work = 0;
    *overflow = 0;

    for (;;) {
        digit = *str - '0';
        if (digit >= 0 && digit <= 9) {
            if (work >= 0x19999999 && (work > 0x19999999 || digit > 5))
                *overflow = 1;
        } else {
            break;
        }

        work = (work << 3) + (work << 1) + digit;
        ++str;
    }

    *output = work;
    return str;
}

static char *UnmangleClassname(char *work, char **pNameStart, short *pNameLength, char **a4, short *a5, Boolean a6) {
    char ch;
    short len;
    char *p2;
    short len2;
    short i;
    short wtf;

    *pNameLength = 0;
    if (*(work++) != '_')
        return work;
    if (*(work++) != '_') {
        return work;
    } else {
        len = 0;
        while (work[0] >= '0' && work[0] <= '9') {
            len = (len * 10) + work[0] - '0';
            ++work;
        }

        if (len > 0) {
            *pNameStart = work;
            *pNameLength = len;

            if (a6) {
                p2 = *a4;
                len2 = *a5;
                i = 0;
                wtf = len;
                while (i < wtf && len2 < 255) {
                    *(p2++) = work[i];
                    ++i;
                    ++len2;
                }
                if (len2 < 255) {
                    *(p2++) = ':';
                    len2++;
                }
                if (len2 < 255) {
                    *(p2++) = ':';
                    len2++;
                }
                *a4 = p2;
                *a5 = len2;
            }
        }

        return work + len;
    }
}

static char *UnmangleAppend(char *src, char srcLen, char **pOutput, short *pOutputLen) {
    char *output;
    short i;
    short outputLen;

    output = *pOutput;
    outputLen = *pOutputLen;

    for (i = 0; i < srcLen && outputLen < 255; i++, outputLen++) {
        *(output++) = src[i];
    }

    *pOutput = output;
    *pOutputLen = outputLen;
}

void OldUnmangle(char *input, char *output, Boolean flag) {
    short var26;
    char *nameStart;
    short nameLength;
    char *saved;
    int i;

    if (*input == '.')
        ++input;

    var26 = 0;
    saved = input;
    if (input[0] == '_' && input[1] == '_') {
        if (input[2] == 'c' && input[3] == 't') {
            saved = UnmangleClassname(&input[4], &nameStart, &nameLength, &output, &var26, flag);
            if (nameLength == 0)
                goto invalid;
            UnmangleAppend(nameStart, nameLength, &output, &var26);
        } else if (input[2] == 'd' && input[3] == 't') {
            saved = UnmangleClassname(&input[4], &nameStart, &nameLength, &output, &var26, flag);
            if (nameLength == 0)
                goto invalid;
            if (var26 <= 255) {
                *(output++) = '~';
                var26++;
            }
            UnmangleAppend(nameStart, nameLength, &output, &var26);
        } else if (input[2] == 'n' && input[3] == 'w') {
            saved = UnmangleClassname(&input[4], &nameStart, &nameLength, &output, &var26, flag);
            UnmangleAppend("operator new", 15, &output, &var26);
        } else if (input[2] == 'd' && input[3] == 'l') {
            saved = UnmangleClassname(&input[4], &nameStart, &nameLength, &output, &var26, flag);
            UnmangleAppend("operator delete", 15, &output, &var26);
        } else {
        invalid:
            strncpy(output, input, 256);
            return;
        }
    } else {
        i = 0;
        while (*saved) {
            ++saved;
            ++i;
            if (saved[0] == '_' && saved[1] == '_') {
                saved = UnmangleClassname(saved, &nameStart, &nameLength, &output, &var26, flag);
                break;
            }
        }
        UnmangleAppend(input, i, &output, &var26);
    }

    if (flag && saved[0] == 'F') {
        if (saved[1] == 'v') {
            UnmangleAppend("(void)", 6, &output, &var26);
        } else {
            UnmangleAppend("(...)", 5, &output, &var26);
        }
    }

    *output = 0;
}

short hash(char *str) {
    char hash = 0;

    while (*str) {
        hash = hash << 1;
        hash ^= *(str++);
    }

    return hash & 0x7F;
}

void memclr(void *buffer, long size) {
    memset(buffer, 0, size);
}

void memclrw(void *buffer, long size) {
    memset(buffer, 0, size);
}

void CToLowercase(char *src, char *dst) {
    char ch;

    do {
        ch = tolower(*(src++));
        *(dst++) = ch;
    } while (ch);
}

int getbit(long v) {
    switch (v) {
        case 0: return -1;
        case 1: return 0;
        case 2: return 1;
        case 4: return 2;
        case 8: return 3;
        case 0x10: return 4;
        case 0x20: return 5;
        case 0x40: return 6;
        case 0x80: return 7;
        case 0x100: return 8;
        case 0x200: return 9;
        case 0x400: return 10;
        case 0x800: return 11;
        case 0x1000: return 12;
        case 0x2000: return 13;
        case 0x4000: return 14;
        case 0x8000: return 15;
        case 0x10000: return 16;
        case 0x20000: return 17;
        case 0x40000: return 18;
        case 0x80000: return 19;
        case 0x100000: return 20;
        case 0x200000: return 21;
        case 0x400000: return 22;
        case 0x800000: return 23;
        case 0x1000000: return 24;
        case 0x2000000: return 25;
        case 0x4000000: return 26;
        case 0x8000000: return 27;
        case 0x10000000: return 28;
        case 0x20000000: return 29;
        case 0x40000000: return 30;
        case 0x80000000: return 31;
        default: return -2;
    }
}

void CTool_EndianConvertWord64(WtfWord64 value, unsigned long long *p) {
    union { unsigned char bytes[8]; WtfWord64 w; } data;
    data.w.a = value.a;
    data.w.b = value.b;
    memcpy(p, data.bytes, 8);
}

unsigned short CTool_EndianConvertInPlaceWord16Ptr(unsigned short *p) {
    unsigned short v;
    v = *p;
    // this probably has a conversion on non-ppc
    *p = v;
    return v;
}

unsigned long CTool_EndianConvertInPlaceWord32Ptr(unsigned long *p) {
    unsigned long v;
    v = *p;
    // this probably has a conversion on non-ppc
    *p = v;
    return v;
}

void CTool_EndianConvertVector128() {
    // not correct but idc
}

StringNode *CTool_GetPathName(const FSSpec *spec, long *mdDat) {
    char buffer[256];
    COS_FileGetPathName(buffer, spec, mdDat);
    return GetHashNameNodeExport(buffer);
}

Boolean strcat_safe(char *dst, const char *src, int maxLen) {
    int len;
    char ch;

    len = strlen(dst);
    dst += len;
    maxLen -= len;
    if (maxLen < 0)
        return 1;

    while (maxLen != 0) {
        ch = *(dst++) = *(src++);
        if (ch == 0)
            break;
        --maxLen;
    }

    if (maxLen == 0 && dst[-1]) {
        dst[-1] = 0;
        return 1;
    } else {
        return 0;
    }
}