1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #include "../../include/fxcrt/fx_basic.h"
_Buffer_itoa(char * buf,int i,FX_DWORD flags)8 static int _Buffer_itoa(char* buf, int i, FX_DWORD flags)
9 {
10 if (i == 0) {
11 buf[0] = '0';
12 return 1;
13 }
14 char buf1[32];
15 int buf_pos = 31;
16 FX_DWORD u = i;
17 if ((flags & FXFORMAT_SIGNED) && i < 0) {
18 u = -i;
19 }
20 int base = 10;
21 FX_LPCSTR string = "0123456789abcdef";
22 if (flags & FXFORMAT_HEX) {
23 base = 16;
24 if (flags & FXFORMAT_CAPITAL) {
25 string = "0123456789ABCDEF";
26 }
27 }
28 while (u != 0) {
29 buf1[buf_pos--] = string[u % base];
30 u = u / base;
31 }
32 if ((flags & FXFORMAT_SIGNED) && i < 0) {
33 buf1[buf_pos--] = '-';
34 }
35 int len = 31 - buf_pos;
36 for (int ii = 0; ii < len; ii ++) {
37 buf[ii] = buf1[ii + buf_pos + 1];
38 }
39 return len;
40 }
FormatInteger(int i,FX_DWORD flags)41 CFX_ByteString CFX_ByteString::FormatInteger(int i, FX_DWORD flags)
42 {
43 char buf[32];
44 return CFX_ByteStringC(buf, _Buffer_itoa(buf, i, flags));
45 }
FX_AllocString(int nLen)46 static CFX_StringData* FX_AllocString(int nLen)
47 {
48 if (nLen == 0) {
49 return NULL;
50 }
51 CFX_StringData* pData = (CFX_StringData*)FX_Alloc(FX_BYTE, sizeof(long) * 3 + (nLen + 1) * sizeof(char));
52 if (!pData) {
53 return NULL;
54 }
55 pData->m_nAllocLength = nLen;
56 pData->m_nDataLength = nLen;
57 pData->m_nRefs = 1;
58 pData->m_String[nLen] = 0;
59 return pData;
60 }
FX_ReleaseString(CFX_StringData * pData)61 static void FX_ReleaseString(CFX_StringData* pData)
62 {
63 if (pData == NULL) {
64 return;
65 }
66 pData->m_nRefs --;
67 if (pData->m_nRefs <= 0) {
68 FX_Free(pData);
69 }
70 }
~CFX_ByteString()71 CFX_ByteString::~CFX_ByteString()
72 {
73 if (m_pData == NULL) {
74 return;
75 }
76 m_pData->m_nRefs --;
77 if (m_pData->m_nRefs < 1) {
78 FX_Free(m_pData);
79 }
80 }
CFX_ByteString(FX_LPCSTR lpsz,FX_STRSIZE nLen)81 CFX_ByteString::CFX_ByteString(FX_LPCSTR lpsz, FX_STRSIZE nLen)
82 {
83 if (nLen < 0) {
84 nLen = lpsz ? (FX_STRSIZE)FXSYS_strlen(lpsz) : 0;
85 }
86 if (nLen) {
87 m_pData = FX_AllocString(nLen);
88 if (m_pData) {
89 FXSYS_memcpy32(m_pData->m_String, lpsz, nLen * sizeof(char));
90 }
91 } else {
92 m_pData = NULL;
93 }
94 }
CFX_ByteString(FX_LPCBYTE lpsz,FX_STRSIZE nLen)95 CFX_ByteString::CFX_ByteString(FX_LPCBYTE lpsz, FX_STRSIZE nLen)
96 {
97 if (nLen > 0) {
98 m_pData = FX_AllocString(nLen);
99 if (m_pData) {
100 FXSYS_memcpy32(m_pData->m_String, lpsz, nLen * sizeof(char));
101 }
102 } else {
103 m_pData = NULL;
104 }
105 }
CFX_ByteString(char ch)106 CFX_ByteString::CFX_ByteString(char ch)
107 {
108 m_pData = FX_AllocString(1);
109 if (m_pData) {
110 m_pData->m_String[0] = ch;
111 }
112 }
CFX_ByteString(const CFX_ByteString & stringSrc)113 CFX_ByteString::CFX_ByteString(const CFX_ByteString& stringSrc)
114 {
115 if (stringSrc.m_pData == NULL) {
116 m_pData = NULL;
117 return;
118 }
119 if (stringSrc.m_pData->m_nRefs >= 0) {
120 m_pData = stringSrc.m_pData;
121 m_pData->m_nRefs ++;
122 } else {
123 m_pData = NULL;
124 *this = stringSrc;
125 }
126 }
CFX_ByteString(FX_BSTR stringSrc)127 CFX_ByteString::CFX_ByteString(FX_BSTR stringSrc)
128 {
129 if (stringSrc.IsEmpty()) {
130 m_pData = NULL;
131 return;
132 } else {
133 m_pData = NULL;
134 *this = stringSrc;
135 }
136 }
CFX_ByteString(FX_BSTR str1,FX_BSTR str2)137 CFX_ByteString::CFX_ByteString(FX_BSTR str1, FX_BSTR str2)
138 {
139 m_pData = NULL;
140 int nNewLen = str1.GetLength() + str2.GetLength();
141 if (nNewLen == 0) {
142 return;
143 }
144 m_pData = FX_AllocString(nNewLen);
145 if (m_pData) {
146 FXSYS_memcpy32(m_pData->m_String, str1.GetCStr(), str1.GetLength());
147 FXSYS_memcpy32(m_pData->m_String + str1.GetLength(), str2.GetCStr(), str2.GetLength());
148 }
149 }
operator =(FX_LPCSTR lpsz)150 const CFX_ByteString& CFX_ByteString::operator=(FX_LPCSTR lpsz)
151 {
152 if (lpsz == NULL || lpsz[0] == 0) {
153 Empty();
154 } else {
155 AssignCopy((FX_STRSIZE)FXSYS_strlen(lpsz), lpsz);
156 }
157 return *this;
158 }
operator =(FX_BSTR str)159 const CFX_ByteString& CFX_ByteString::operator=(FX_BSTR str)
160 {
161 if (str.IsEmpty()) {
162 Empty();
163 } else {
164 AssignCopy(str.GetLength(), str.GetCStr());
165 }
166 return *this;
167 }
operator =(const CFX_ByteString & stringSrc)168 const CFX_ByteString& CFX_ByteString::operator=(const CFX_ByteString& stringSrc)
169 {
170 if (m_pData == stringSrc.m_pData) {
171 return *this;
172 }
173 if (stringSrc.IsEmpty()) {
174 Empty();
175 } else if ((m_pData && m_pData->m_nRefs < 0) ||
176 (stringSrc.m_pData && stringSrc.m_pData->m_nRefs < 0)) {
177 AssignCopy(stringSrc.m_pData->m_nDataLength, stringSrc.m_pData->m_String);
178 } else {
179 Empty();
180 m_pData = stringSrc.m_pData;
181 if (m_pData) {
182 m_pData->m_nRefs ++;
183 }
184 }
185 return *this;
186 }
operator =(const CFX_BinaryBuf & buf)187 const CFX_ByteString& CFX_ByteString::operator=(const CFX_BinaryBuf& buf)
188 {
189 Load(buf.GetBuffer(), buf.GetSize());
190 return *this;
191 }
Load(FX_LPCBYTE buf,FX_STRSIZE len)192 void CFX_ByteString::Load(FX_LPCBYTE buf, FX_STRSIZE len)
193 {
194 Empty();
195 if (len) {
196 m_pData = FX_AllocString(len);
197 if (m_pData) {
198 FXSYS_memcpy32(m_pData->m_String, buf, len * sizeof(char));
199 }
200 } else {
201 m_pData = NULL;
202 }
203 }
operator +=(FX_LPCSTR lpsz)204 const CFX_ByteString& CFX_ByteString::operator+=(FX_LPCSTR lpsz)
205 {
206 if (lpsz) {
207 ConcatInPlace((FX_STRSIZE)FXSYS_strlen(lpsz), lpsz);
208 }
209 return *this;
210 }
operator +=(char ch)211 const CFX_ByteString& CFX_ByteString::operator+=(char ch)
212 {
213 ConcatInPlace(1, &ch);
214 return *this;
215 }
operator +=(const CFX_ByteString & string)216 const CFX_ByteString& CFX_ByteString::operator+=(const CFX_ByteString& string)
217 {
218 if (string.m_pData == NULL) {
219 return *this;
220 }
221 ConcatInPlace(string.m_pData->m_nDataLength, string.m_pData->m_String);
222 return *this;
223 }
operator +=(FX_BSTR string)224 const CFX_ByteString& CFX_ByteString::operator+=(FX_BSTR string)
225 {
226 if (string.IsEmpty()) {
227 return *this;
228 }
229 ConcatInPlace(string.GetLength(), string.GetCStr());
230 return *this;
231 }
Equal(FX_BSTR str) const232 bool CFX_ByteString::Equal(FX_BSTR str) const
233 {
234 if (m_pData == NULL) {
235 return str.IsEmpty();
236 }
237 return m_pData->m_nDataLength == str.GetLength() &&
238 FXSYS_memcmp32(m_pData->m_String, str.GetCStr(), str.GetLength()) == 0;
239 }
operator ==(const CFX_ByteString & s2) const240 bool CFX_ByteString::operator ==(const CFX_ByteString& s2) const
241 {
242 if (m_pData == NULL) {
243 return s2.IsEmpty();
244 }
245 if (s2.m_pData == NULL) {
246 return false;
247 }
248 return m_pData->m_nDataLength == s2.m_pData->m_nDataLength &&
249 FXSYS_memcmp32(m_pData->m_String, s2.m_pData->m_String, m_pData->m_nDataLength) == 0;
250 }
Empty()251 void CFX_ByteString::Empty()
252 {
253 if (m_pData == NULL) {
254 return;
255 }
256 if (m_pData->m_nRefs > 1) {
257 m_pData->m_nRefs --;
258 } else {
259 FX_Free(m_pData);
260 }
261 m_pData = NULL;
262 }
EqualNoCase(FX_BSTR str) const263 bool CFX_ByteString::EqualNoCase(FX_BSTR str) const
264 {
265 if (m_pData == NULL) {
266 return str.IsEmpty();
267 }
268 FX_STRSIZE len = str.GetLength();
269 if (m_pData->m_nDataLength != len) {
270 return false;
271 }
272 FX_LPCBYTE pThis = (FX_LPCBYTE)m_pData->m_String;
273 FX_LPCBYTE pThat = (FX_LPCBYTE)str;
274 for (FX_STRSIZE i = 0; i < len; i ++) {
275 if ((*pThis) != (*pThat)) {
276 FX_BYTE bThis = *pThis;
277 if (bThis >= 'A' && bThis <= 'Z') {
278 bThis += 'a' - 'A';
279 }
280 FX_BYTE bThat = *pThat;
281 if (bThat >= 'A' && bThat <= 'Z') {
282 bThat += 'a' - 'A';
283 }
284 if (bThis != bThat) {
285 return false;
286 }
287 }
288 pThis ++;
289 pThat ++;
290 }
291 return true;
292 }
AssignCopy(FX_STRSIZE nSrcLen,FX_LPCSTR lpszSrcData)293 void CFX_ByteString::AssignCopy(FX_STRSIZE nSrcLen, FX_LPCSTR lpszSrcData)
294 {
295 AllocBeforeWrite(nSrcLen);
296 FXSYS_memcpy32(m_pData->m_String, lpszSrcData, nSrcLen * sizeof(char));
297 m_pData->m_nDataLength = nSrcLen;
298 m_pData->m_String[nSrcLen] = 0;
299 }
CopyBeforeWrite()300 void CFX_ByteString::CopyBeforeWrite()
301 {
302 if (m_pData == NULL || m_pData->m_nRefs <= 1) {
303 return;
304 }
305 CFX_StringData* pData = m_pData;
306 m_pData->m_nRefs --;
307 FX_STRSIZE nDataLength = pData->m_nDataLength;
308 m_pData = FX_AllocString(nDataLength);
309 if (m_pData != NULL) {
310 FXSYS_memcpy32(m_pData->m_String, pData->m_String, (nDataLength + 1) * sizeof(char));
311 }
312 }
AllocBeforeWrite(FX_STRSIZE nLen)313 void CFX_ByteString::AllocBeforeWrite(FX_STRSIZE nLen)
314 {
315 if (m_pData && m_pData->m_nRefs <= 1 && m_pData->m_nAllocLength >= nLen) {
316 return;
317 }
318 Empty();
319 m_pData = FX_AllocString(nLen);
320 }
ReleaseBuffer(FX_STRSIZE nNewLength)321 void CFX_ByteString::ReleaseBuffer(FX_STRSIZE nNewLength)
322 {
323 if (m_pData == NULL) {
324 return;
325 }
326 CopyBeforeWrite();
327 if (nNewLength == -1) {
328 nNewLength = (FX_STRSIZE)FXSYS_strlen((FX_LPCSTR)m_pData->m_String);
329 }
330 if (nNewLength == 0) {
331 Empty();
332 return;
333 }
334 FXSYS_assert(nNewLength <= m_pData->m_nAllocLength);
335 m_pData->m_nDataLength = nNewLength;
336 m_pData->m_String[nNewLength] = 0;
337 }
LockBuffer()338 FX_LPSTR CFX_ByteString::LockBuffer()
339 {
340 if (m_pData == NULL) {
341 return NULL;
342 }
343 FX_LPSTR lpsz = GetBuffer(0);
344 m_pData->m_nRefs = -1;
345 return lpsz;
346 }
Reserve(FX_STRSIZE len)347 void CFX_ByteString::Reserve(FX_STRSIZE len)
348 {
349 GetBuffer(len);
350 ReleaseBuffer(GetLength());
351 }
GetBuffer(FX_STRSIZE nMinBufLength)352 FX_LPSTR CFX_ByteString::GetBuffer(FX_STRSIZE nMinBufLength)
353 {
354 if (m_pData == NULL && nMinBufLength == 0) {
355 return NULL;
356 }
357 if (m_pData && m_pData->m_nRefs <= 1 && m_pData->m_nAllocLength >= nMinBufLength) {
358 return m_pData->m_String;
359 }
360 if (m_pData == NULL) {
361 m_pData = FX_AllocString(nMinBufLength);
362 if (!m_pData) {
363 return NULL;
364 }
365 m_pData->m_nDataLength = 0;
366 m_pData->m_String[0] = 0;
367 return m_pData->m_String;
368 }
369 CFX_StringData* pOldData = m_pData;
370 FX_STRSIZE nOldLen = pOldData->m_nDataLength;
371 if (nMinBufLength < nOldLen) {
372 nMinBufLength = nOldLen;
373 }
374 m_pData = FX_AllocString(nMinBufLength);
375 if (!m_pData) {
376 return NULL;
377 }
378 FXSYS_memcpy32(m_pData->m_String, pOldData->m_String, (nOldLen + 1)*sizeof(char));
379 m_pData->m_nDataLength = nOldLen;
380 pOldData->m_nRefs --;
381 if (pOldData->m_nRefs <= 0) {
382 FX_Free(pOldData);
383 }
384 return m_pData->m_String;
385 }
Delete(FX_STRSIZE nIndex,FX_STRSIZE nCount)386 FX_STRSIZE CFX_ByteString::Delete(FX_STRSIZE nIndex, FX_STRSIZE nCount)
387 {
388 if (m_pData == NULL) {
389 return 0;
390 }
391 if (nIndex < 0) {
392 nIndex = 0;
393 }
394 FX_STRSIZE nOldLength = m_pData->m_nDataLength;
395 if (nCount > 0 && nIndex < nOldLength) {
396 FX_STRSIZE mLength = nIndex + nCount;
397 if (mLength >= nOldLength) {
398 m_pData->m_nDataLength = nIndex;
399 return m_pData->m_nDataLength;
400 }
401 CopyBeforeWrite();
402 int nBytesToCopy = nOldLength - mLength + 1;
403 FXSYS_memmove32(m_pData->m_String + nIndex,
404 m_pData->m_String + mLength, nBytesToCopy * sizeof(char));
405 m_pData->m_nDataLength = nOldLength - nCount;
406 }
407 return m_pData->m_nDataLength;
408 }
ConcatInPlace(FX_STRSIZE nSrcLen,FX_LPCSTR lpszSrcData)409 void CFX_ByteString::ConcatInPlace(FX_STRSIZE nSrcLen, FX_LPCSTR lpszSrcData)
410 {
411 if (nSrcLen == 0 || lpszSrcData == NULL) {
412 return;
413 }
414 if (m_pData == NULL) {
415 m_pData = FX_AllocString(nSrcLen);
416 if (!m_pData) {
417 return;
418 }
419 FXSYS_memcpy32(m_pData->m_String, lpszSrcData, nSrcLen * sizeof(char));
420 return;
421 }
422 if (m_pData->m_nRefs > 1 || m_pData->m_nDataLength + nSrcLen > m_pData->m_nAllocLength) {
423 CFX_StringData* pOldData = m_pData;
424 ConcatCopy(m_pData->m_nDataLength, m_pData->m_String, nSrcLen, lpszSrcData);
425 FX_ReleaseString(pOldData);
426 } else {
427 FXSYS_memcpy32(m_pData->m_String + m_pData->m_nDataLength, lpszSrcData, nSrcLen * sizeof(char));
428 m_pData->m_nDataLength += nSrcLen;
429 m_pData->m_String[m_pData->m_nDataLength] = 0;
430 }
431 }
ConcatCopy(FX_STRSIZE nSrc1Len,FX_LPCSTR lpszSrc1Data,FX_STRSIZE nSrc2Len,FX_LPCSTR lpszSrc2Data)432 void CFX_ByteString::ConcatCopy(FX_STRSIZE nSrc1Len, FX_LPCSTR lpszSrc1Data,
433 FX_STRSIZE nSrc2Len, FX_LPCSTR lpszSrc2Data)
434 {
435 int nNewLen = nSrc1Len + nSrc2Len;
436 if (nNewLen == 0) {
437 return;
438 }
439 m_pData = FX_AllocString(nNewLen);
440 if (m_pData) {
441 FXSYS_memcpy32(m_pData->m_String, lpszSrc1Data, nSrc1Len * sizeof(char));
442 FXSYS_memcpy32(m_pData->m_String + nSrc1Len, lpszSrc2Data, nSrc2Len * sizeof(char));
443 }
444 }
Mid(FX_STRSIZE nFirst) const445 CFX_ByteString CFX_ByteString::Mid(FX_STRSIZE nFirst) const
446 {
447 if (m_pData == NULL) {
448 return CFX_ByteString();
449 }
450 return Mid(nFirst, m_pData->m_nDataLength - nFirst);
451 }
Mid(FX_STRSIZE nFirst,FX_STRSIZE nCount) const452 CFX_ByteString CFX_ByteString::Mid(FX_STRSIZE nFirst, FX_STRSIZE nCount) const
453 {
454 if (nFirst < 0) {
455 nFirst = 0;
456 }
457 if (nCount < 0) {
458 nCount = 0;
459 }
460 if (nFirst + nCount > m_pData->m_nDataLength) {
461 nCount = m_pData->m_nDataLength - nFirst;
462 }
463 if (nFirst > m_pData->m_nDataLength) {
464 nCount = 0;
465 }
466 if (nFirst == 0 && nFirst + nCount == m_pData->m_nDataLength) {
467 return *this;
468 }
469 CFX_ByteString dest;
470 AllocCopy(dest, nCount, nFirst, 0);
471 return dest;
472 }
AllocCopy(CFX_ByteString & dest,FX_STRSIZE nCopyLen,FX_STRSIZE nCopyIndex,FX_STRSIZE nExtraLen) const473 void CFX_ByteString::AllocCopy(CFX_ByteString& dest, FX_STRSIZE nCopyLen, FX_STRSIZE nCopyIndex,
474 FX_STRSIZE nExtraLen) const
475 {
476 FX_STRSIZE nNewLen = nCopyLen + nExtraLen;
477 if (nNewLen == 0) {
478 return;
479 }
480 ASSERT(dest.m_pData == NULL);
481 dest.m_pData = FX_AllocString(nNewLen);
482 if (dest.m_pData) {
483 FXSYS_memcpy32(dest.m_pData->m_String, m_pData->m_String + nCopyIndex, nCopyLen * sizeof(char));
484 }
485 }
486 #define FORCE_ANSI 0x10000
487 #define FORCE_UNICODE 0x20000
488 #define FORCE_INT64 0x40000
FormatV(FX_LPCSTR lpszFormat,va_list argList)489 void CFX_ByteString::FormatV(FX_LPCSTR lpszFormat, va_list argList)
490 {
491 va_list argListSave;
492 #if defined(__ARMCC_VERSION) || (!defined(_MSC_VER) && (_FX_CPU_ == _FX_X64_ || _FX_CPU_ == _FX_IA64_ || _FX_CPU_ == _FX_ARM64_)) || defined(__native_client__)
493 va_copy(argListSave, argList);
494 #else
495 argListSave = argList;
496 #endif
497 int nMaxLen = 0;
498 for (FX_LPCSTR lpsz = lpszFormat; *lpsz != 0; lpsz ++) {
499 if (*lpsz != '%' || *(lpsz = lpsz + 1) == '%') {
500 nMaxLen += (FX_STRSIZE)FXSYS_strlen(lpsz);
501 continue;
502 }
503 int nItemLen = 0;
504 int nWidth = 0;
505 for (; *lpsz != 0; lpsz ++) {
506 if (*lpsz == '#') {
507 nMaxLen += 2;
508 } else if (*lpsz == '*') {
509 nWidth = va_arg(argList, int);
510 } else if (*lpsz == '-' || *lpsz == '+' || *lpsz == '0' ||
511 *lpsz == ' ')
512 ;
513 else {
514 break;
515 }
516 }
517 if (nWidth == 0) {
518 nWidth = FXSYS_atoi(lpsz);
519 for (; (*lpsz) >= '0' && (*lpsz) <= '9'; lpsz ++)
520 ;
521 }
522 if (nWidth < 0 || nWidth > 128 * 1024) {
523 lpszFormat = "Bad width";
524 nMaxLen = 10;
525 break;
526 }
527 int nPrecision = 0;
528 if (*lpsz == '.') {
529 lpsz ++;
530 if (*lpsz == '*') {
531 nPrecision = va_arg(argList, int);
532 lpsz ++;
533 } else {
534 nPrecision = FXSYS_atoi(lpsz);
535 for (; (*lpsz) >= '0' && (*lpsz) <= '9'; lpsz ++)
536 ;
537 }
538 }
539 if (nPrecision < 0 || nPrecision > 128 * 1024) {
540 lpszFormat = "Bad precision";
541 nMaxLen = 14;
542 break;
543 }
544 int nModifier = 0;
545 if (FXSYS_strncmp(lpsz, "I64", 3) == 0) {
546 lpsz += 3;
547 nModifier = FORCE_INT64;
548 } else {
549 switch (*lpsz) {
550 case 'h':
551 nModifier = FORCE_ANSI;
552 lpsz ++;
553 break;
554 case 'l':
555 nModifier = FORCE_UNICODE;
556 lpsz ++;
557 break;
558 case 'F':
559 case 'N':
560 case 'L':
561 lpsz ++;
562 break;
563 }
564 }
565 switch (*lpsz | nModifier) {
566 case 'c':
567 case 'C':
568 nItemLen = 2;
569 va_arg(argList, int);
570 break;
571 case 'c'|FORCE_ANSI:
572 case 'C'|FORCE_ANSI:
573 nItemLen = 2;
574 va_arg(argList, int);
575 break;
576 case 'c'|FORCE_UNICODE:
577 case 'C'|FORCE_UNICODE:
578 nItemLen = 2;
579 va_arg(argList, int);
580 break;
581 case 's': {
582 FX_LPCSTR pstrNextArg = va_arg(argList, FX_LPCSTR);
583 if (pstrNextArg == NULL) {
584 nItemLen = 6;
585 } else {
586 nItemLen = (FX_STRSIZE)FXSYS_strlen(pstrNextArg);
587 if (nItemLen < 1) {
588 nItemLen = 1;
589 }
590 }
591 }
592 break;
593 case 'S': {
594 FX_LPWSTR pstrNextArg = va_arg(argList, FX_LPWSTR);
595 if (pstrNextArg == NULL) {
596 nItemLen = 6;
597 } else {
598 nItemLen = (FX_STRSIZE)FXSYS_wcslen(pstrNextArg);
599 if (nItemLen < 1) {
600 nItemLen = 1;
601 }
602 }
603 }
604 break;
605 case 's'|FORCE_ANSI:
606 case 'S'|FORCE_ANSI: {
607 FX_LPCSTR pstrNextArg = va_arg(argList, FX_LPCSTR);
608 if (pstrNextArg == NULL) {
609 nItemLen = 6;
610 } else {
611 nItemLen = (FX_STRSIZE)FXSYS_strlen(pstrNextArg);
612 if (nItemLen < 1) {
613 nItemLen = 1;
614 }
615 }
616 }
617 break;
618 case 's'|FORCE_UNICODE:
619 case 'S'|FORCE_UNICODE: {
620 FX_LPWSTR pstrNextArg = va_arg(argList, FX_LPWSTR);
621 if (pstrNextArg == NULL) {
622 nItemLen = 6;
623 } else {
624 nItemLen = (FX_STRSIZE)FXSYS_wcslen(pstrNextArg);
625 if (nItemLen < 1) {
626 nItemLen = 1;
627 }
628 }
629 }
630 break;
631 }
632 if (nItemLen != 0) {
633 if (nPrecision != 0 && nItemLen > nPrecision) {
634 nItemLen = nPrecision;
635 }
636 if (nItemLen < nWidth) {
637 nItemLen = nWidth;
638 }
639 } else {
640 switch (*lpsz) {
641 case 'd':
642 case 'i':
643 case 'u':
644 case 'x':
645 case 'X':
646 case 'o':
647 if (nModifier & FORCE_INT64) {
648 va_arg(argList, FX_INT64);
649 } else {
650 va_arg(argList, int);
651 }
652 nItemLen = 32;
653 if (nItemLen < nWidth + nPrecision) {
654 nItemLen = nWidth + nPrecision;
655 }
656 break;
657 case 'a':
658 case 'A':
659 case 'e':
660 case 'E':
661 case 'g':
662 case 'G':
663 va_arg(argList, double);
664 nItemLen = 128;
665 if (nItemLen < nWidth + nPrecision) {
666 nItemLen = nWidth + nPrecision;
667 }
668 break;
669 case 'f':
670 if (nWidth + nPrecision > 100) {
671 nItemLen = nPrecision + nWidth + 128;
672 } else {
673 double f;
674 char pszTemp[256];
675 f = va_arg(argList, double);
676 FXSYS_sprintf(pszTemp, "%*.*f", nWidth, nPrecision + 6, f );
677 nItemLen = (FX_STRSIZE)FXSYS_strlen(pszTemp);
678 }
679 break;
680 case 'p':
681 va_arg(argList, void*);
682 nItemLen = 32;
683 if (nItemLen < nWidth + nPrecision) {
684 nItemLen = nWidth + nPrecision;
685 }
686 break;
687 case 'n':
688 va_arg(argList, int*);
689 break;
690 }
691 }
692 nMaxLen += nItemLen;
693 }
694 GetBuffer(nMaxLen);
695 if (m_pData) {
696 FXSYS_vsprintf(m_pData->m_String, lpszFormat, argListSave);
697 ReleaseBuffer();
698 }
699 va_end(argListSave);
700 }
Format(FX_LPCSTR lpszFormat,...)701 void CFX_ByteString::Format(FX_LPCSTR lpszFormat, ...)
702 {
703 va_list argList;
704 va_start(argList, lpszFormat);
705 FormatV(lpszFormat, argList);
706 va_end(argList);
707 }
Insert(FX_STRSIZE nIndex,FX_CHAR ch)708 FX_STRSIZE CFX_ByteString::Insert(FX_STRSIZE nIndex, FX_CHAR ch)
709 {
710 CopyBeforeWrite();
711 if (nIndex < 0) {
712 nIndex = 0;
713 }
714 FX_STRSIZE nNewLength = m_pData ? m_pData->m_nDataLength : 0;
715 if (nIndex > nNewLength) {
716 nIndex = nNewLength;
717 }
718 nNewLength++;
719 if (m_pData == NULL || m_pData->m_nAllocLength < nNewLength) {
720 CFX_StringData* pOldData = m_pData;
721 FX_LPCSTR pstr = m_pData->m_String;
722 m_pData = FX_AllocString(nNewLength);
723 if (!m_pData) {
724 return 0;
725 }
726 if(pOldData != NULL) {
727 FXSYS_memmove32(m_pData->m_String, pstr, (pOldData->m_nDataLength + 1)*sizeof(char));
728 FX_ReleaseString(pOldData);
729 } else {
730 m_pData->m_String[0] = 0;
731 }
732 }
733 FXSYS_memmove32(m_pData->m_String + nIndex + 1,
734 m_pData->m_String + nIndex, (nNewLength - nIndex)*sizeof(char));
735 m_pData->m_String[nIndex] = ch;
736 m_pData->m_nDataLength = nNewLength;
737 return nNewLength;
738 }
Right(FX_STRSIZE nCount) const739 CFX_ByteString CFX_ByteString::Right(FX_STRSIZE nCount) const
740 {
741 if (m_pData == NULL) {
742 return CFX_ByteString();
743 }
744 if (nCount < 0) {
745 nCount = 0;
746 }
747 if (nCount >= m_pData->m_nDataLength) {
748 return *this;
749 }
750 CFX_ByteString dest;
751 AllocCopy(dest, nCount, m_pData->m_nDataLength - nCount, 0);
752 return dest;
753 }
Left(FX_STRSIZE nCount) const754 CFX_ByteString CFX_ByteString::Left(FX_STRSIZE nCount) const
755 {
756 if (m_pData == NULL) {
757 return CFX_ByteString();
758 }
759 if (nCount < 0) {
760 nCount = 0;
761 }
762 if (nCount >= m_pData->m_nDataLength) {
763 return *this;
764 }
765 CFX_ByteString dest;
766 AllocCopy(dest, nCount, 0, 0);
767 return dest;
768 }
Find(FX_CHAR ch,FX_STRSIZE nStart) const769 FX_STRSIZE CFX_ByteString::Find(FX_CHAR ch, FX_STRSIZE nStart) const
770 {
771 if (m_pData == NULL) {
772 return -1;
773 }
774 FX_STRSIZE nLength = m_pData->m_nDataLength;
775 if (nStart >= nLength) {
776 return -1;
777 }
778 FX_LPCSTR lpsz = FXSYS_strchr(m_pData->m_String + nStart, ch);
779 return (lpsz == NULL) ? -1 : (int)(lpsz - m_pData->m_String);
780 }
ReverseFind(FX_CHAR ch) const781 FX_STRSIZE CFX_ByteString::ReverseFind(FX_CHAR ch) const
782 {
783 if (m_pData == NULL) {
784 return -1;
785 }
786 FX_STRSIZE nLength = m_pData->m_nDataLength;
787 while (nLength) {
788 if (m_pData->m_String[nLength - 1] == ch) {
789 return nLength - 1;
790 }
791 nLength --;
792 }
793 return -1;
794 }
FX_strstr(FX_LPCSTR str1,int len1,FX_LPCSTR str2,int len2)795 FX_LPCSTR FX_strstr(FX_LPCSTR str1, int len1, FX_LPCSTR str2, int len2)
796 {
797 if (len2 > len1 || len2 == 0) {
798 return NULL;
799 }
800 FX_LPCSTR end_ptr = str1 + len1 - len2;
801 while (str1 <= end_ptr) {
802 int i = 0;
803 while (1) {
804 if (str1[i] != str2[i]) {
805 break;
806 }
807 i ++;
808 if (i == len2) {
809 return str1;
810 }
811 }
812 str1 ++;
813 }
814 return NULL;
815 }
Find(FX_BSTR lpszSub,FX_STRSIZE nStart) const816 FX_STRSIZE CFX_ByteString::Find(FX_BSTR lpszSub, FX_STRSIZE nStart) const
817 {
818 if (m_pData == NULL) {
819 return -1;
820 }
821 FX_STRSIZE nLength = m_pData->m_nDataLength;
822 if (nStart > nLength) {
823 return -1;
824 }
825 FX_LPCSTR lpsz = FX_strstr(m_pData->m_String + nStart, m_pData->m_nDataLength - nStart,
826 lpszSub.GetCStr(), lpszSub.GetLength());
827 return (lpsz == NULL) ? -1 : (int)(lpsz - m_pData->m_String);
828 }
MakeLower()829 void CFX_ByteString::MakeLower()
830 {
831 if (m_pData == NULL) {
832 return;
833 }
834 CopyBeforeWrite();
835 if (GetLength() < 1) {
836 return;
837 }
838 FXSYS_strlwr(m_pData->m_String);
839 }
MakeUpper()840 void CFX_ByteString::MakeUpper()
841 {
842 if (m_pData == NULL) {
843 return;
844 }
845 CopyBeforeWrite();
846 if (GetLength() < 1) {
847 return;
848 }
849 FXSYS_strupr(m_pData->m_String);
850 }
Remove(FX_CHAR chRemove)851 FX_STRSIZE CFX_ByteString::Remove(FX_CHAR chRemove)
852 {
853 if (m_pData == NULL) {
854 return 0;
855 }
856 CopyBeforeWrite();
857 if (GetLength() < 1) {
858 return 0;
859 }
860 FX_LPSTR pstrSource = m_pData->m_String;
861 FX_LPSTR pstrDest = m_pData->m_String;
862 FX_LPSTR pstrEnd = m_pData->m_String + m_pData->m_nDataLength;
863 while (pstrSource < pstrEnd) {
864 if (*pstrSource != chRemove) {
865 *pstrDest = *pstrSource;
866 pstrDest ++;
867 }
868 pstrSource ++;
869 }
870 *pstrDest = 0;
871 FX_STRSIZE nCount = (FX_STRSIZE)(pstrSource - pstrDest);
872 m_pData->m_nDataLength -= nCount;
873 return nCount;
874 }
Replace(FX_BSTR lpszOld,FX_BSTR lpszNew)875 FX_STRSIZE CFX_ByteString::Replace(FX_BSTR lpszOld, FX_BSTR lpszNew)
876 {
877 if (m_pData == NULL) {
878 return 0;
879 }
880 if (lpszOld.IsEmpty()) {
881 return 0;
882 }
883 FX_STRSIZE nSourceLen = lpszOld.GetLength();
884 FX_STRSIZE nReplacementLen = lpszNew.GetLength();
885 FX_STRSIZE nCount = 0;
886 FX_LPCSTR pStart = m_pData->m_String;
887 FX_LPSTR pEnd = m_pData->m_String + m_pData->m_nDataLength;
888 while (1) {
889 FX_LPCSTR pTarget = FX_strstr(pStart, (FX_STRSIZE)(pEnd - pStart), lpszOld.GetCStr(), nSourceLen);
890 if (pTarget == NULL) {
891 break;
892 }
893 nCount++;
894 pStart = pTarget + nSourceLen;
895 }
896 if (nCount == 0) {
897 return 0;
898 }
899 FX_STRSIZE nNewLength = m_pData->m_nDataLength + (nReplacementLen - nSourceLen) * nCount;
900 if (nNewLength == 0) {
901 Empty();
902 return nCount;
903 }
904 CFX_StringData* pNewData = FX_AllocString(nNewLength);
905 if (!pNewData) {
906 return 0;
907 }
908 pStart = m_pData->m_String;
909 FX_LPSTR pDest = pNewData->m_String;
910 for (FX_STRSIZE i = 0; i < nCount; i ++) {
911 FX_LPCSTR pTarget = FX_strstr(pStart, (FX_STRSIZE)(pEnd - pStart), lpszOld.GetCStr(), nSourceLen);
912 FXSYS_memcpy32(pDest, pStart, pTarget - pStart);
913 pDest += pTarget - pStart;
914 FXSYS_memcpy32(pDest, lpszNew.GetCStr(), lpszNew.GetLength());
915 pDest += lpszNew.GetLength();
916 pStart = pTarget + nSourceLen;
917 }
918 FXSYS_memcpy32(pDest, pStart, pEnd - pStart);
919 FX_ReleaseString(m_pData);
920 m_pData = pNewData;
921 return nCount;
922 }
SetAt(FX_STRSIZE nIndex,FX_CHAR ch)923 void CFX_ByteString::SetAt(FX_STRSIZE nIndex, FX_CHAR ch)
924 {
925 if (m_pData == NULL) {
926 return;
927 }
928 FXSYS_assert(nIndex >= 0);
929 FXSYS_assert(nIndex < m_pData->m_nDataLength);
930 CopyBeforeWrite();
931 m_pData->m_String[nIndex] = ch;
932 }
LoadFromFile(FX_BSTR filename)933 CFX_ByteString CFX_ByteString::LoadFromFile(FX_BSTR filename)
934 {
935 FXSYS_FILE* file = FXSYS_fopen(CFX_ByteString(filename), "rb");
936 if (file == NULL) {
937 return CFX_ByteString();
938 }
939 FXSYS_fseek(file, 0, FXSYS_SEEK_END);
940 int len = FXSYS_ftell(file);
941 FXSYS_fseek(file, 0, FXSYS_SEEK_SET);
942 CFX_ByteString str;
943 FX_LPSTR buf = str.GetBuffer(len);
944 size_t readCnt = FXSYS_fread(buf, 1, len, file);
945 str.ReleaseBuffer(len);
946 FXSYS_fclose(file);
947 return str;
948 }
UTF8Decode() const949 CFX_WideString CFX_ByteString::UTF8Decode() const
950 {
951 CFX_UTF8Decoder decoder;
952 for (FX_STRSIZE i = 0; i < GetLength(); i ++) {
953 decoder.Input((FX_BYTE)m_pData->m_String[i]);
954 }
955 return decoder.GetResult();
956 }
FromUnicode(FX_LPCWSTR str,FX_STRSIZE len)957 CFX_ByteString CFX_ByteString::FromUnicode(FX_LPCWSTR str, FX_STRSIZE len)
958 {
959 if (len < 0) {
960 len = (FX_STRSIZE)FXSYS_wcslen(str);
961 }
962 CFX_ByteString bstr;
963 bstr.ConvertFrom(CFX_WideString(str, len));
964 return bstr;
965 }
FromUnicode(const CFX_WideString & str)966 CFX_ByteString CFX_ByteString::FromUnicode(const CFX_WideString& str)
967 {
968 return FromUnicode((FX_LPCWSTR)str, str.GetLength());
969 }
ConvertFrom(const CFX_WideString & str,CFX_CharMap * pCharMap)970 void CFX_ByteString::ConvertFrom(const CFX_WideString& str, CFX_CharMap* pCharMap)
971 {
972 if (pCharMap == NULL) {
973 pCharMap = CFX_CharMap::GetDefaultMapper();
974 }
975 *this = (*pCharMap->m_GetByteString)(pCharMap, str);
976 }
Compare(FX_BSTR str) const977 int CFX_ByteString::Compare(FX_BSTR str) const
978 {
979 if (m_pData == NULL) {
980 return str.IsEmpty() ? 0 : -1;
981 }
982 int this_len = m_pData->m_nDataLength;
983 int that_len = str.GetLength();
984 int min_len = this_len < that_len ? this_len : that_len;
985 for (int i = 0; i < min_len; i ++) {
986 if ((FX_BYTE)m_pData->m_String[i] < str.GetAt(i)) {
987 return -1;
988 } else if ((FX_BYTE)m_pData->m_String[i] > str.GetAt(i)) {
989 return 1;
990 }
991 }
992 if (this_len < that_len) {
993 return -1;
994 } else if (this_len > that_len) {
995 return 1;
996 }
997 return 0;
998 }
TrimRight(FX_BSTR lpszTargets)999 void CFX_ByteString::TrimRight(FX_BSTR lpszTargets)
1000 {
1001 if (m_pData == NULL || lpszTargets.IsEmpty()) {
1002 return;
1003 }
1004 CopyBeforeWrite();
1005 FX_STRSIZE pos = GetLength();
1006 if (pos < 1) {
1007 return;
1008 }
1009 while (pos) {
1010 FX_STRSIZE i = 0;
1011 while (i < lpszTargets.GetLength() && lpszTargets[i] != m_pData->m_String[pos - 1]) {
1012 i ++;
1013 }
1014 if (i == lpszTargets.GetLength()) {
1015 break;
1016 }
1017 pos --;
1018 }
1019 if (pos < m_pData->m_nDataLength) {
1020 m_pData->m_String[pos] = 0;
1021 m_pData->m_nDataLength = pos;
1022 }
1023 }
TrimRight(FX_CHAR chTarget)1024 void CFX_ByteString::TrimRight(FX_CHAR chTarget)
1025 {
1026 TrimRight(CFX_ByteStringC(chTarget));
1027 }
TrimRight()1028 void CFX_ByteString::TrimRight()
1029 {
1030 TrimRight(FX_BSTRC("\x09\x0a\x0b\x0c\x0d\x20"));
1031 }
TrimLeft(FX_BSTR lpszTargets)1032 void CFX_ByteString::TrimLeft(FX_BSTR lpszTargets)
1033 {
1034 if (m_pData == NULL) {
1035 return;
1036 }
1037 if (lpszTargets.IsEmpty()) {
1038 return;
1039 }
1040 CopyBeforeWrite();
1041 FX_STRSIZE len = GetLength();
1042 if (len < 1) {
1043 return;
1044 }
1045 FX_STRSIZE pos = 0;
1046 while (pos < len) {
1047 FX_STRSIZE i = 0;
1048 while (i < lpszTargets.GetLength() && lpszTargets[i] != m_pData->m_String[pos]) {
1049 i ++;
1050 }
1051 if (i == lpszTargets.GetLength()) {
1052 break;
1053 }
1054 pos ++;
1055 }
1056 if (pos) {
1057 FX_STRSIZE nDataLength = len - pos;
1058 FXSYS_memmove32(m_pData->m_String, m_pData->m_String + pos, (nDataLength + 1)*sizeof(FX_CHAR));
1059 m_pData->m_nDataLength = nDataLength;
1060 }
1061 }
TrimLeft(FX_CHAR chTarget)1062 void CFX_ByteString::TrimLeft(FX_CHAR chTarget)
1063 {
1064 TrimLeft(CFX_ByteStringC(chTarget));
1065 }
TrimLeft()1066 void CFX_ByteString::TrimLeft()
1067 {
1068 TrimLeft(FX_BSTRC("\x09\x0a\x0b\x0c\x0d\x20"));
1069 }
GetID(FX_STRSIZE start_pos) const1070 FX_DWORD CFX_ByteString::GetID(FX_STRSIZE start_pos) const
1071 {
1072 return CFX_ByteStringC(*this).GetID(start_pos);
1073 }
GetID(FX_STRSIZE start_pos) const1074 FX_DWORD CFX_ByteStringC::GetID(FX_STRSIZE start_pos) const
1075 {
1076 if (m_Length == 0) {
1077 return 0;
1078 }
1079 if (start_pos >= m_Length) {
1080 return 0;
1081 }
1082 FX_DWORD strid = 0;
1083 if (start_pos + 4 > m_Length) {
1084 for (FX_STRSIZE i = 0; i < m_Length - start_pos; i ++) {
1085 strid = strid * 256 + m_Ptr[start_pos + i];
1086 }
1087 strid = strid << ((4 - m_Length + start_pos) * 8);
1088 } else {
1089 for (int i = 0; i < 4; i ++) {
1090 strid = strid * 256 + m_Ptr[start_pos + i];
1091 }
1092 }
1093 return strid;
1094 }
FX_ftoa(FX_FLOAT d,FX_LPSTR buf)1095 FX_STRSIZE FX_ftoa(FX_FLOAT d, FX_LPSTR buf)
1096 {
1097 buf[0] = '0';
1098 buf[1] = '\0';
1099 if (d == 0.0f) {
1100 return 1;
1101 }
1102 FX_BOOL bNegative = FALSE;
1103 if (d < 0) {
1104 bNegative = TRUE;
1105 d = -d;
1106 }
1107 int scale = 1;
1108 int scaled = FXSYS_round(d);
1109 while (scaled < 100000) {
1110 if (scale == 1000000) {
1111 break;
1112 }
1113 scale *= 10;
1114 scaled = FXSYS_round(d * scale);
1115 }
1116 if (scaled == 0) {
1117 return 1;
1118 }
1119 char buf2[32];
1120 int buf_size = 0;
1121 if (bNegative) {
1122 buf[buf_size++] = '-';
1123 }
1124 int i = scaled / scale;
1125 FXSYS_itoa(i, buf2, 10);
1126 FX_STRSIZE len = (FX_STRSIZE)FXSYS_strlen(buf2);
1127 FXSYS_memcpy32(buf + buf_size, buf2, len);
1128 buf_size += len;
1129 int fraction = scaled % scale;
1130 if (fraction == 0) {
1131 return buf_size;
1132 }
1133 buf[buf_size++] = '.';
1134 scale /= 10;
1135 while (fraction) {
1136 buf[buf_size++] = '0' + fraction / scale;
1137 fraction %= scale;
1138 scale /= 10;
1139 }
1140 return buf_size;
1141 }
FormatFloat(FX_FLOAT d,int precision)1142 CFX_ByteString CFX_ByteString::FormatFloat(FX_FLOAT d, int precision)
1143 {
1144 FX_CHAR buf[32];
1145 FX_STRSIZE len = FX_ftoa(d, buf);
1146 return CFX_ByteString(buf, len);
1147 }
Copy(FX_BSTR str)1148 void CFX_StringBufBase::Copy(FX_BSTR str)
1149 {
1150 m_Size = str.GetLength();
1151 if (m_Size > m_Limit) {
1152 m_Size = m_Limit;
1153 }
1154 FX_CHAR* pBuffer = (FX_CHAR*)(this + 1);
1155 FXSYS_memcpy32(pBuffer, str.GetPtr(), m_Size);
1156 }
Append(FX_BSTR str)1157 void CFX_StringBufBase::Append(FX_BSTR str)
1158 {
1159 int len = str.GetLength();
1160 if (len > m_Limit - m_Size) {
1161 len = m_Limit - m_Size;
1162 }
1163 FX_CHAR* pBuffer = (FX_CHAR*)(this + 1);
1164 FXSYS_memcpy32(pBuffer + m_Size, str.GetPtr(), len);
1165 m_Size += len;
1166 }
Append(int i,FX_DWORD flags)1167 void CFX_StringBufBase::Append(int i, FX_DWORD flags)
1168 {
1169 char buf[32];
1170 int len = _Buffer_itoa(buf, i, flags);
1171 Append(CFX_ByteStringC(buf, len));
1172 }
Empty(IFX_Allocator * pAllocator)1173 void CFX_ByteStringL::Empty(IFX_Allocator* pAllocator)
1174 {
1175 if (m_Ptr) {
1176 FX_Allocator_Free(pAllocator, (FX_LPVOID)m_Ptr);
1177 }
1178 m_Ptr = NULL, m_Length = 0;
1179 }
AllocBuffer(FX_STRSIZE length,IFX_Allocator * pAllocator)1180 FX_LPSTR CFX_ByteStringL::AllocBuffer(FX_STRSIZE length, IFX_Allocator* pAllocator)
1181 {
1182 Empty(pAllocator);
1183 FX_LPSTR str = FX_Allocator_Alloc(pAllocator, FX_CHAR, length + 1);
1184 if (!str) {
1185 return NULL;
1186 }
1187 *(FX_LPSTR*)(&m_Ptr) = str;
1188 m_Length = length;
1189 return str;
1190 }
Set(FX_BSTR src,IFX_Allocator * pAllocator)1191 void CFX_ByteStringL::Set(FX_BSTR src, IFX_Allocator* pAllocator)
1192 {
1193 Empty(pAllocator);
1194 if (src.GetCStr() != NULL && src.GetLength() > 0) {
1195 FX_LPSTR str = FX_Allocator_Alloc(pAllocator, FX_CHAR, src.GetLength() + 1);
1196 if (!str) {
1197 return;
1198 }
1199 FXSYS_memcpy32(str, src, src.GetLength());
1200 str[src.GetLength()] = '\0';
1201 *(FX_LPSTR*)(&m_Ptr) = str;
1202 m_Length = src.GetLength();
1203 }
1204 }
1205