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String.cpp
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2699 lines (2321 loc) · 65.4 KB
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#include <hxcpp.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <set>
#include <string>
#include <hx/Unordered.h>
#include "hx/Hash.h"
#include <hx/Thread.h>
#include <locale>
using namespace hx;
#if defined(BLACKBERRY)
using namespace std;
#endif
// -------- String ----------------------------------------
#ifdef HX_WINDOWS
#ifndef _MSC_VER
#define _MSC_VER 1
#endif
// vc 7...
#if _MSC_VER < 1400
#define SPRINTF _snprintf
#else // vc8+
#define SPRINTF _snprintf_s
#endif
#else // not windows ..
#define SPRINTF snprintf
#endif
#ifdef HX_SMART_STRINGS
#include "hx/Unicase.h"
#endif
namespace hx
{
char HX_DOUBLE_PATTERN[20] = "%.15g";
#define HX_INT_PATTERN "%d"
#define HX_UINT_PATTERN "%ud"
}
void __hxcpp_set_float_format(String inFormat)
{
int last = inFormat.length < 19 ? inFormat.length : 19;
memcpy(HX_DOUBLE_PATTERN, inFormat.utf8_str(), last*sizeof(char) );
HX_DOUBLE_PATTERN[last] = '\0';
}
// --- GC helper
hx::Class __StringClass;
String String::emptyString = HX_("",00,00,00,00);
static Dynamic sConstEmptyString;
static String sConstStrings[256];
static Dynamic sConstDynamicStrings[256];
static String *sCharToString[1088] = { 0 };
typedef Hash<TNonGcStringSet> StringSet;
static StringSet *sPermanentStringSet = 0;
static volatile int sPermanentStringSetMutex = 0;
#ifdef HXCPP_COMBINE_STRINGS
static bool sIsIdent[256];
static bool InitIdent()
{
for(int i=0;i<256;i++)
sIsIdent[i]= (i>='a' && i<='z') || (i>='A' && i<='Z') || (i>='0' && i<='9') || (i=='_');
return true;
}
#endif
inline static bool IsUtf16Surrogate(int ch)
{
return ch>=0xd800 && ch<0xe000;
}
inline static bool IsUtf16LowSurrogate(int ch)
{
return ch>=0xdc00 && ch<0xe000;
}
inline static bool IsUtf16HighSurrogate(int ch)
{
return ch>=0xd800 && ch<0xdc00;
}
static int UTF8Bytes(int c)
{
if( c <= 0x7F )
return 1;
else if( c <= 0x7FF )
return 2;
else if( c <= 0xFFFF )
return 3;
else
return 4;
}
inline static int UTF16BytesCheck(int ch)
{
if (ch>=0x10000)
{
if (ch<0x110000)
return 2;
}
return 1;
}
static void UTF8EncodeAdvance(char * &ioPtr,int c)
{
if( c <= 0x7F )
*ioPtr++ = (c);
else if( c <= 0x7FF )
{
*ioPtr++ = ( 0xC0 | (c >> 6) );
*ioPtr++ = ( 0x80 | (c & 63) );
}
else if( c <= 0xFFFF )
{
*ioPtr++ = ( 0xE0 | (c >> 12) );
*ioPtr++ = ( 0x80 | ((c >> 6) & 63) );
*ioPtr++ = ( 0x80 | (c & 63) );
}
else
{
*ioPtr++ = ( 0xF0 | (c >> 18) );
*ioPtr++ = ( 0x80 | ((c >> 12) & 63) );
*ioPtr++ = ( 0x80 | ((c >> 6) & 63) );
*ioPtr++ = ( 0x80 | (c & 63) );
}
}
static unsigned char *sUtf8LenArray = 0;
static const unsigned char *getUtf8LenArray()
{
if (!sUtf8LenArray)
{
sUtf8LenArray = (unsigned char *)malloc(256);
for(int i=0;i<256;i++)
sUtf8LenArray[i] = i< 0x80 ? 1 : i<0xe0 ? 2 : i<0xf0 ? 3 : 4;
}
return sUtf8LenArray;
}
static inline int DecodeAdvanceUTF8(const unsigned char * &ioPtr)
{
int c = *ioPtr++;
if( c < 0x80 )
{
return c;
}
else if( c < 0xE0 )
{
return ((c & 0x3F) << 6) | ((*ioPtr++) & 0x7F);
}
else if( c < 0xF0 )
{
int c2 = *ioPtr++;
return ((c & 0x1F) << 12) | ((c2 & 0x7F) << 6) | ( (*ioPtr++) & 0x7F);
}
int c2 = *ioPtr++;
int c3 = *ioPtr++;
return ((c & 0x0F) << 18) | ((c2 & 0x7F) << 12) | ((c3 & 0x7F) << 6) | ((*ioPtr++) & 0x7F);
}
static inline int DecodeAdvanceUTF8(const unsigned char * &ioPtr,const unsigned char *end)
{
int c = *ioPtr++;
if( c < 0x80 )
{
return c;
}
else if( c < 0xE0 )
{
return ((c & 0x3F) << 6) | (ioPtr < end ? (*ioPtr++) & 0x7F : 0);
}
else if( c < 0xF0 )
{
int c2 = ioPtr<end ? *ioPtr++ : 0;
return ((c & 0x1F) << 12) | ((c2 & 0x7F) << 6) | ( ioPtr<end ? (*ioPtr++) & 0x7F : 0 );
}
int c2 = ioPtr<end ? *ioPtr++ : 0;
int c3 = ioPtr<end ? *ioPtr++ : 0;
return ((c & 0x0F) << 18) | ((c2 & 0x7F) << 12) | ((c3 & 0x7F) << 6) | ( ioPtr<end ? (*ioPtr++) & 0x7F : 0);
}
int _hx_utf8_decode_advance(char *&ioPtr)
{
return DecodeAdvanceUTF8( (const unsigned char * &) ioPtr );
}
inline int Char16Advance(const char16_t *&ioStr,bool throwOnErr=true)
{
int ch = *ioStr++;
if (IsUtf16Surrogate(ch))
{
if (IsUtf16LowSurrogate(ch))
{
if (throwOnErr)
hx::Throw(HX_CSTRING("Invalid UTF16"));
return 0xFFFD;
}
int peek = *ioStr++;
if (IsUtf16HighSurrogate(peek))
{
if (throwOnErr)
hx::Throw(HX_CSTRING("Invalid UTF16"));
return 0xFFFD;
}
ch = 0x10000 + ((ch-0xd800) << 10) | (peek-0xdc00);
}
return ch;
}
void Char16AdvanceSet(char16_t *&ioStr,int inChar)
{
if (inChar>=0x10000)
{
int over = (inChar-0x10000);
if (over>=0x100000)
{
*ioStr++ = 0xfffd;
}
else
{
*ioStr++ = (over>>10) + 0xd800;
*ioStr++ = (over&0x3ff) + 0xdc00;
}
}
else if (IsUtf16Surrogate(inChar))
{
*ioStr++ = 0xfffd;
}
else
*ioStr++ = inChar;
}
template<typename T>
char *TConvertToUTF8(const T *inStr, int *ioLen, hx::IStringAlloc *inBuffer,bool)
{
int len = 0;
int chars = 0;
if (ioLen==0 || *ioLen==0)
{
while(inStr[len])
chars += UTF8Bytes(inStr[len++]);
}
else
{
len = *ioLen;
for(int i=0;i<len;i++)
chars += UTF8Bytes(inStr[i]);
}
char *buf = inBuffer ? (char *)inBuffer->allocBytes(chars+1) :
(char *)NewGCPrivate(0,chars+1);
char *ptr = buf;
for(int i=0;i<len;i++)
UTF8EncodeAdvance(ptr,inStr[i]);
*ptr = 0;
if (ioLen)
*ioLen = chars;
return buf;
}
template<>
char *TConvertToUTF8(const char16_t *inStr, int *ioLen, hx::IStringAlloc *inBuffer,bool throwInvalid)
{
int len = 0;
if (ioLen==0 || *ioLen==0)
{
const char16_t *s = inStr;
while( Char16Advance(s,throwInvalid) ) { }
len = s - inStr - 1;
}
else
{
len = *ioLen;
}
const char16_t *s = inStr;
const char16_t *end = s + len;
int chars = 0;
while(s<end)
chars += UTF8Bytes( Char16Advance( s,throwInvalid ) );
char *buf = inBuffer ? (char *)inBuffer->allocBytes(chars+1) :
(char *)NewGCPrivate(0,chars+1);
char *ptr = buf;
s = inStr;
while(s<end)
UTF8EncodeAdvance(ptr,Char16Advance(s,throwInvalid));
*ptr = 0;
if (ioLen)
*ioLen = chars;
return buf;
}
char16_t *String::allocChar16Ptr(int len)
{
char16_t *result = (char16_t *)hx::InternalNew( (len+1)*2, false );
((unsigned int *)result)[-1] |= HX_GC_STRING_CHAR16_T;
result[len] = 0;
return result;
}
template<typename T>
static const char *GCStringDup(const T *inStr,int inLen, int *outLen=0)
{
if (inStr==0 && inLen<=0)
{
if (outLen)
outLen = 0;
return String::emptyString.raw_ptr();
}
int len = inLen;
bool allAscii = true;
if (len==-1)
{
len=0;
while(inStr[len])
{
if (sizeof(T)>1 && allAscii)
allAscii = inStr[len] <= 127;
len++;
}
}
else if (sizeof(T)>1)
{
for(int i=0;i<inLen;i++)
if (inStr[i]>127)
{
allAscii = false;
break;
}
}
if (outLen)
*outLen = len;
if (len==1)
return String::fromCharCode(inStr[0]).raw_ptr();
#ifdef HXCPP_COMBINE_STRINGS
bool ident = len<20 && sIsIdent[inStr[0]] && (inStr[0]<'0' || inStr[0]>'9');
if (ident && len>3)
for(int p=1; p<len;p++)
if (!sIsIdent[ inStr[p] ])
{
ident = false;
break;
}
if (ident)
{
hx::StackContext *ctx = hx::StackContext::getCurrent();
if (!ctx->stringSet)
ctx->stringSet = new WeakStringSet();
unsigned int hash = 0;
for(int i=0;i<len;i++)
hash = hash*223 + ((unsigned char *)inStr)[i];
struct Finder
{
int len;
const char *ptr;
Finder(int len, const char *inPtr) : len(len), ptr(inPtr) { }
bool operator==(const String &inStr) const
{
return len == inStr.length && !memcmp(ptr, inStr.__s, len*sizeof(char));
}
};
String found;
if (ctx->stringSet->findEquivalentKey(found, hash, Finder(len, inStr)))
return found.__s;
char *result = hx::NewString(len + 4);
memcpy(result,inStr,sizeof(char)*(len));
result[len] = '\0';
*((unsigned int *)(result + len + 1)) = hash;
((unsigned int *)(result))[-1] |= HX_GC_STRING_HASH;
String asString(result, len);
ctx->stringSet->TSet( asString, true );
return result;
}
#endif
if (sizeof(T)==1 || allAscii)
{
char *result = hx::NewString( len );
if (sizeof(T)==1)
memcpy(result,inStr,sizeof(char)*(len));
else
for(int i=0;i<len;i++)
result[i] = inStr[i];
return result;
}
char16_t *result = String::allocChar16Ptr(len);
memcpy(result,inStr,2*len);
if (IsUtf16LowSurrogate(result[0]))
result[0] = 0xFFFD;
if (len>1 && IsUtf16HighSurrogate(result[len-1]))
result[len-1] = 0xFFFD;
return (const char *)result;
}
template<typename T>
inline String TCopyString(const T *inString,int inLength)
{
if (!inString)
return String();
#ifndef HX_SMART_STRINGS
if (inLength<0)
for(inLength=0; !inString[inLength]; inString++) { }
if (sizeof(T)==1)
{
int len = 0;
const char *res = GCStringDup((const char *)inString,inLength,&len);
return String(res,len);
}
else
{
int length = inLength;
const char *ptr = TConvertToUTF8(inString, &length, 0, true );
return String(ptr,length);
}
#else
int c16len=0;
bool hasWChar = false;
const T *end = inLength>=0 ? inString + inLength : 0;
if (end)
{
for(const T *s = inString; s<end; s++)
{
unsigned int c = *s;
if (c>127)
hasWChar = true;
c16len += UTF16BytesCheck(c);
}
}
else
for(const T *s = inString; *s; s++)
{
unsigned int c = *s;
if (c>127)
hasWChar = true;
c16len += UTF16BytesCheck(c);
}
if (hasWChar)
{
char16_t *result = String::allocChar16Ptr(c16len);
c16len = 0;
for(const T *s = inString; ; s++)
{
if (end)
{
if (s>=end) break;
}
else
{
if (!*s) break;
}
unsigned int c = *s;
if (c<0x10000)
result[c16len++] = c;
else
{
int over = (c-0x10000);
result[c16len++] = (over>>10) + 0xd800;
result[c16len++] = (over&0x3ff) + 0xdc00;
}
}
return String(result,c16len);
}
else
{
char *s = hx::NewString(c16len);
for(int i=0;i<c16len;i++)
s[i] = (char)inString[i];
return String(s,c16len);
}
#endif
}
String __hxcpp_char_array_to_utf8_string(Array<int> &inChars,int inFirst, int inLen)
{
int len = inChars->length;
if (inFirst<0)
inFirst = 0;
if (inLen<0) inLen = len;
if (inFirst+inLen>len)
inLen = len-inFirst;
if (inLen<=0)
return String::emptyString;
int *base = &inChars[0];
#ifdef HX_SMART_STRINGS
bool hasBig = false;
for(int i=0;i<inLen;i++)
if (base[i+inFirst]>127)
{
hasBig = true;
break;
}
if (hasBig)
{
char16_t *ptr = String::allocChar16Ptr(inLen);
for(int i=0;i<inLen;i++)
ptr[i] = base[i+inFirst];
return String(ptr, inLen);
}
#endif
char *result = TConvertToUTF8(base+inFirst,&len,0,true);
return String(result,len);
}
Array<int> __hxcpp_utf8_string_to_char_array(String &inString)
{
#ifdef HX_SMART_STRINGS
Array<int> result = Array_obj<int>::__new(inString.length);
if (inString.isUTF16Encoded())
{
const char16_t *ptr = inString.wc_str();
for(int i=0;i<inString.length;i++)
result[i] = ptr[i];
}
else
{
const char *ptr = inString.raw_ptr();
for(int i=0;i<inString.length;i++)
result[i] = ptr[i];
}
#else
Array<int> result = Array_obj<int>::__new(0,inString.length);
const unsigned char *src = (const unsigned char *)inString.__s;
const unsigned char *end = src + inString.length;
while(src<end)
result->push(DecodeAdvanceUTF8(src));
if (src!=end)
hx::Throw(HX_CSTRING("Invalid UTF8"));
#endif
return result;
}
String __hxcpp_char_bytes_to_utf8_string(String &inBytes)
{
#ifdef HX_SMART_STRINGS
// This does not really make much sense
return inBytes;
#else
int len = inBytes.length;
char *result = TConvertToUTF8((unsigned char *)inBytes.__s,&len,0,true);
return String(result,len);
#endif
}
String __hxcpp_utf8_string_to_char_bytes(String &inUTF8)
{
#ifdef HX_SMART_STRINGS
// This does not really make much sense
return inUTF8;
#else
const unsigned char *src = (unsigned char *)inUTF8.__s;
const unsigned char *end = src + inUTF8.length;
int char_count = 0;
while(src<end)
{
int c = DecodeAdvanceUTF8(src,end);
char_count++;
if( c == 8364 ) // euro symbol
c = 164;
else if ( c == 0xFEFF ) // BOM
{
char_count--;
}
else if( c > 255 )
hx::Throw(HX_CSTRING("Utf8::decode invalid character"));
}
if (src!=end)
hx::Throw(HX_CSTRING("Invalid UTF8"));
char *result = hx::NewString(char_count);
src = (unsigned char *)inUTF8.__s;
char_count = 0;
while(src<end)
{
int c = DecodeAdvanceUTF8(src);
if( c == 8364 ) // euro symbol
c = 164;
if ( c != 0xFEFF ) // BOM
result[char_count++] = c;
}
result[char_count] = '\0';
return String(result,char_count);
#endif
}
void _hx_utf8_iter(String inString, Dynamic inIter)
{
#ifdef HX_SMART_STRINGS
if (inString.isUTF16Encoded())
for(int i=0;i<inString.length;i++)
inIter( (int)inString.raw_wptr()[i] );
else
for(int i=0;i<inString.length;i++)
inIter( (int)inString.raw_ptr()[i] );
#else
const unsigned char *src = (const unsigned char *)inString.__s;
const unsigned char *end = src + inString.length;
while(src<end)
inIter(DecodeAdvanceUTF8(src,end+1));
if (src>end)
hx::Throw(HX_CSTRING("Invalid UTF8"));
#endif
}
int _hx_utf8_char_code_at(String inString, int inIndex)
{
#ifdef HX_SMART_STRINGS
if (!inString.raw_ptr() || inIndex>=inString.length)
return 0;
if (inString.isUTF16Encoded())
return inString.raw_wptr()[inIndex];
else
return inString.raw_ptr()[inIndex];
#else
const unsigned char *src = (const unsigned char *)inString.__s;
const unsigned char *end = src + inString.length;
const unsigned char *sLen = getUtf8LenArray();
for(int i=0;i<inIndex;i++)
{
src += sLen[*src];
if (src==end)
return 0;
if (src>end)
hx::Throw(HX_CSTRING("Invalid UTF8"));
}
return DecodeAdvanceUTF8(src,end);
#endif
}
int _hx_utf8_length(String inString)
{
#ifdef HX_SMART_STRINGS
return inString.length;
#else
const unsigned char *src = (const unsigned char *)inString.__s;
const unsigned char *end = src + inString.length;
int len = 0;
const unsigned char *sLen = getUtf8LenArray();
while(src<end)
{
src += sLen[*src];
len++;
}
if (src>end)
hx::Throw(HX_CSTRING("Invalid UTF8"));
return len;
#endif
}
bool _hx_utf8_is_valid(String inString)
{
#ifdef HX_SMART_STRINGS
return true;
#else
const unsigned char *src = (const unsigned char *)inString.__s;
const unsigned char *end = src + inString.length;
const unsigned char *sLen = getUtf8LenArray();
while(src<end)
src += sLen[*src];
return src==end;
#endif
}
String _hx_utf8_sub(String inString, int inStart, int inLen)
{
#ifdef HX_SMART_STRINGS
return inString.substr(inStart,inLen);
#else
const unsigned char *src = (const unsigned char *)inString.__s;
const unsigned char *end = src + inString.length;
const unsigned char *sLen = getUtf8LenArray();
for(int i=0;i<inStart;i++)
{
src += sLen[*src];
if (src==end)
return String::emptyString;
if (src>end)
hx::Throw(HX_CSTRING("Invalid UTF8"));
}
const unsigned char *start = src;
for(int i=0;i<inLen;i++)
{
src += sLen[*src];
if (src==end)
break;
if (src>end)
hx::Throw(HX_CSTRING("Invalid UTF8"));
}
return String::create((const char *)start, src-start);
#endif
}
String String::create(const wchar_t *inString,int inLength) { return TCopyString(inString,inLength); }
String String::create(const char16_t *inString,int inLength) { return TCopyString(inString,inLength); }
String String::create(const char *inString,int inLength)
{
if (!inString)
return String();
#ifdef HX_SMART_STRINGS
if (inLength<0)
for(inLength=0; inString[inLength]; inLength++) { }
const unsigned char *c = (const unsigned char *)inString;
for(int i=0;i<inLength;i++)
{
if (c[i]>127)
return _hx_utf8_to_utf16(c, inLength,false);
}
#endif
int len = 0;
const char *s = GCStringDup(inString,inLength,&len);
return String(s,len);
}
String String::create(const::cpp::marshal::View<char>& buffer)
{
auto start = buffer.ptr.ptr;
auto end = start + buffer.length;
while (start < end) {
if (*start == false)
{
break;
}
start++;
}
return String::create(buffer.ptr.ptr, buffer.length - (end - start));
}
String String::create(const cpp::marshal::View<char16_t>& buffer)
{
auto start = reinterpret_cast<const char16_t*>(buffer.ptr.ptr);
auto end = start + buffer.length;
auto extra = 0;
while (start < end) {
if (Char16Advance(start) == false)
{
// set extra to 1 so we don't include the null terminating character in the calculated length.
extra = 1;
break;
}
}
return String::create(buffer.ptr.ptr, buffer.length - (end - start) - extra);
}
String::String(const Dynamic &inRHS)
{
if (inRHS.GetPtr())
(*this)=const_cast<Dynamic &>(inRHS)->toString();
else
{
__s = 0;
length = 0;
}
}
void String::fromInt(int inIdx)
{
char buf[100];
SPRINTF(buf,100,HX_INT_PATTERN,inIdx);
buf[99]='\0';
__s = GCStringDup(buf,-1,&length);
}
String::String(const int &inRHS)
{
fromInt(inRHS);
}
String::String(const unsigned int &inRHS)
{
char buf[100];
SPRINTF(buf,100,HX_UINT_PATTERN,inRHS);
buf[99]='\0';
__s = GCStringDup(buf,-1,&length);
}
String::String(const cpp::CppInt32__ &inRHS)
{
char buf[100];
SPRINTF(buf,100,HX_INT_PATTERN,inRHS.mValue);
__s = GCStringDup(buf,-1,&length);
}
String::String(const double &inRHS)
{
char buf[100];
SPRINTF(buf,100,HX_DOUBLE_PATTERN,inRHS);
buf[99]='\0';
__s = GCStringDup(buf,-1,&length);
}
String::String(const cpp::Int64 &inRHS)
{
char buf[100];
SPRINTF(buf,100,"%lld", (long long int)inRHS);
buf[99]='\0';
__s = GCStringDup(buf,-1,&length);
}
String::String(const cpp::UInt64 &inRHS)
{
char buf[100];
SPRINTF(buf,100,"%llu", (unsigned long long int)inRHS);
buf[99]='\0';
__s = GCStringDup(buf,-1,&length);
}
String::String(const float &inRHS)
{
char buf[100];
SPRINTF(buf,100,HX_DOUBLE_PATTERN,inRHS);
buf[99]='\0';
__s = GCStringDup(buf,-1,&length);
}
String::String(const bool &inRHS)
{
if (inRHS)
{
*this = HX_CSTRING("true");
}
else
{
*this = HX_CSTRING("false");
}
}
void String::fromPointer(const void *p)
{
char buf[128];
SPRINTF(buf,128,"Native(%p)",p);
__s = GCStringDup(buf,-1,&length);
}
#ifdef HX_SMART_STRINGS
#define ADD_HASH(X) \
result = result*223 + (int)(X)
#endif
unsigned int String::calcSubHash(int start, int inLen) const
{
unsigned int result = 0;
#ifdef HX_SMART_STRINGS
if (isUTF16Encoded())
{
const char16_t *w = __w + start;
for(int i=0;i<inLen;i++)
{
int c = w[i];
if( c <= 0x7F )
{
ADD_HASH(c);
}
else if( c <= 0x7FF )
{
ADD_HASH(0xC0 | (c >> 6));
ADD_HASH(0x80 | (c & 63));
}
else if( c <= 0xFFFF )
{
ADD_HASH(0xE0 | (c >> 12));
ADD_HASH(0x80 | ((c >> 6) & 63));
ADD_HASH(0x80 | (c & 63));
}
else
{
ADD_HASH(0xF0 | (c >> 18));
ADD_HASH(0x80 | ((c >> 12) & 63));
ADD_HASH(0x80 | ((c >> 6) & 63) );
ADD_HASH(0x80 | (c & 63) );
}
}
}
else
#endif
{
const unsigned char *s = (const unsigned char *)__s + start;
for(int i=0;i<inLen;i++)
result = result*223 + s[i];
}
return result;
}
unsigned int String::calcHash() const
{
unsigned int result = 0;
#ifdef HX_SMART_STRINGS
if (isUTF16Encoded())
{
for(int i=0;i<length;i++)
{
int c = __w[i];
if( c <= 0x7F )
{
ADD_HASH(c);
}
else if( c <= 0x7FF )
{
ADD_HASH(0xC0 | (c >> 6));
ADD_HASH(0x80 | (c & 63));
}
else if( c <= 0xFFFF )
{
ADD_HASH(0xE0 | (c >> 12));
ADD_HASH(0x80 | ((c >> 6) & 63));
ADD_HASH(0x80 | (c & 63));
}
else
{
ADD_HASH(0xF0 | (c >> 18));