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Diffstat (limited to 'core/fpdftext/fpdf_text_int.cpp')
-rw-r--r--core/fpdftext/fpdf_text_int.cpp103
1 files changed, 67 insertions, 36 deletions
diff --git a/core/fpdftext/fpdf_text_int.cpp b/core/fpdftext/fpdf_text_int.cpp
index 8e8686c4a1..741331fb77 100644
--- a/core/fpdftext/fpdf_text_int.cpp
+++ b/core/fpdftext/fpdf_text_int.cpp
@@ -4,8 +4,6 @@
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-#include "core/fpdftext/fpdf_text_int.h"
-
#include <algorithm>
#include <cctype>
#include <cwctype>
@@ -14,15 +12,17 @@
#include <vector>
#include "core/fpdfapi/fpdf_font/include/cpdf_font.h"
+#include "core/fpdfapi/fpdf_page/include/cpdf_form.h"
#include "core/fpdfapi/fpdf_page/include/cpdf_formobject.h"
+#include "core/fpdfapi/fpdf_page/include/cpdf_page.h"
#include "core/fpdfapi/fpdf_page/include/cpdf_pageobject.h"
#include "core/fpdfapi/fpdf_page/include/cpdf_textobject.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_string.h"
-#include "core/fpdftext/include/ipdf_linkextract.h"
-#include "core/fpdftext/include/ipdf_textpage.h"
-#include "core/fpdftext/include/ipdf_textpagefind.h"
-#include "core/fpdftext/unicodenormalization.h"
+#include "core/fpdftext/include/cpdf_linkextract.h"
+#include "core/fpdftext/include/cpdf_textpage.h"
+#include "core/fpdftext/include/cpdf_textpagefind.h"
+#include "core/fpdftext/unicodenormalizationdata.h"
#include "core/fxcrt/fx_bidi.h"
#include "core/fxcrt/include/fx_ext.h"
#include "core/fxcrt/include/fx_ucd.h"
@@ -36,9 +36,24 @@
#define FPDFTEXT_MATCHWHOLEWORD 0x00000002
#define FPDFTEXT_CONSECUTIVE 0x00000004
+#define FPDFTEXT_CHAR_ERROR -1
+#define FPDFTEXT_CHAR_NORMAL 0
+#define FPDFTEXT_CHAR_GENERATED 1
+#define FPDFTEXT_CHAR_UNUNICODE 2
+#define FPDFTEXT_CHAR_HYPHEN 3
+#define FPDFTEXT_CHAR_PIECE 4
+#define FPDFTEXT_MC_PASS 0
+#define FPDFTEXT_MC_DONE 1
+#define FPDFTEXT_MC_DELAY 2
+
namespace {
-FX_BOOL _IsIgnoreSpaceCharacter(FX_WCHAR curChar) {
+const FX_FLOAT kDefaultFontSize = 1.0f;
+const uint16_t* const g_UnicodeData_Normalization_Maps[5] = {
+ nullptr, g_UnicodeData_Normalization_Map1, g_UnicodeData_Normalization_Map2,
+ g_UnicodeData_Normalization_Map3, g_UnicodeData_Normalization_Map4};
+
+FX_BOOL IsIgnoreSpaceCharacter(FX_WCHAR curChar) {
if (curChar < 255) {
return FALSE;
}
@@ -55,7 +70,7 @@ FX_BOOL _IsIgnoreSpaceCharacter(FX_WCHAR curChar) {
return TRUE;
}
-FX_FLOAT _NormalizeThreshold(FX_FLOAT threshold) {
+FX_FLOAT NormalizeThreshold(FX_FLOAT threshold) {
if (threshold < 300) {
return threshold / 2.0f;
}
@@ -68,8 +83,8 @@ FX_FLOAT _NormalizeThreshold(FX_FLOAT threshold) {
return threshold / 6.0f;
}
-FX_FLOAT _CalculateBaseSpace(const CPDF_TextObject* pTextObj,
- const CFX_Matrix& matrix) {
+FX_FLOAT CalculateBaseSpace(const CPDF_TextObject* pTextObj,
+ const CFX_Matrix& matrix) {
FX_FLOAT baseSpace = 0.0;
const int nItems = pTextObj->CountItems();
if (pTextObj->m_TextState.GetObject()->m_CharSpace && nItems >= 3) {
@@ -94,23 +109,39 @@ FX_FLOAT _CalculateBaseSpace(const CPDF_TextObject* pTextObj,
return baseSpace;
}
-const FX_FLOAT kDefaultFontSize = 1.0f;
-
-} // namespace
-
-IPDF_TextPage* IPDF_TextPage::CreateTextPage(const CPDF_Page* pPage,
- int flags) {
- return new CPDF_TextPage(pPage, flags);
-}
-
-IPDF_TextPageFind* IPDF_TextPageFind::CreatePageFind(
- const IPDF_TextPage* pTextPage) {
- return pTextPage ? new CPDF_TextPageFind(pTextPage) : nullptr;
+FX_STRSIZE Unicode_GetNormalization(FX_WCHAR wch, FX_WCHAR* pDst) {
+ wch = wch & 0xFFFF;
+ FX_WCHAR wFind = g_UnicodeData_Normalization[wch];
+ if (!wFind) {
+ if (pDst) {
+ *pDst = wch;
+ }
+ return 1;
+ }
+ if (wFind >= 0x8000) {
+ wch = wFind - 0x8000;
+ wFind = 1;
+ } else {
+ wch = wFind & 0x0FFF;
+ wFind >>= 12;
+ }
+ const uint16_t* pMap = g_UnicodeData_Normalization_Maps[wFind];
+ if (pMap == g_UnicodeData_Normalization_Map4) {
+ pMap = g_UnicodeData_Normalization_Map4 + wch;
+ wFind = (FX_WCHAR)(*pMap++);
+ } else {
+ pMap += wch;
+ }
+ if (pDst) {
+ FX_WCHAR n = wFind;
+ while (n--) {
+ *pDst++ = *pMap++;
+ }
+ }
+ return (FX_STRSIZE)wFind;
}
-IPDF_LinkExtract* IPDF_LinkExtract::CreateLinkExtract() {
- return new CPDF_LinkExtract();
-}
+} // namespace
#define TEXT_BLANK_CHAR L' '
#define TEXT_LINEFEED_CHAR L'\n'
@@ -932,10 +963,10 @@ void CPDF_TextPage::AddCharInfoByLRDirection(FX_WCHAR wChar,
info.m_Index = m_TextBuf.GetLength();
if (wChar >= 0xFB00 && wChar <= 0xFB06) {
FX_WCHAR* pDst = NULL;
- FX_STRSIZE nCount = FX_Unicode_GetNormalization(wChar, pDst);
+ FX_STRSIZE nCount = Unicode_GetNormalization(wChar, pDst);
if (nCount >= 1) {
pDst = FX_Alloc(FX_WCHAR, nCount);
- FX_Unicode_GetNormalization(wChar, pDst);
+ Unicode_GetNormalization(wChar, pDst);
for (int nIndex = 0; nIndex < nCount; nIndex++) {
PAGECHAR_INFO info2 = info;
info2.m_Unicode = pDst[nIndex];
@@ -960,10 +991,10 @@ void CPDF_TextPage::AddCharInfoByRLDirection(FX_WCHAR wChar,
info.m_Index = m_TextBuf.GetLength();
wChar = FX_GetMirrorChar(wChar, TRUE, FALSE);
FX_WCHAR* pDst = NULL;
- FX_STRSIZE nCount = FX_Unicode_GetNormalization(wChar, pDst);
+ FX_STRSIZE nCount = Unicode_GetNormalization(wChar, pDst);
if (nCount >= 1) {
pDst = FX_Alloc(FX_WCHAR, nCount);
- FX_Unicode_GetNormalization(wChar, pDst);
+ Unicode_GetNormalization(wChar, pDst);
for (int nIndex = 0; nIndex < nCount; nIndex++) {
PAGECHAR_INFO info2 = info;
info2.m_Unicode = pDst[nIndex];
@@ -1377,7 +1408,7 @@ void CPDF_TextPage::ProcessTextObject(PDFTEXT_Obj Obj) {
m_pPreTextObj = pTextObj;
m_perMatrix.Copy(formMatrix);
int nItems = pTextObj->CountItems();
- FX_FLOAT baseSpace = _CalculateBaseSpace(pTextObj, matrix);
+ FX_FLOAT baseSpace = CalculateBaseSpace(pTextObj, matrix);
const FX_BOOL bR2L = IsRightToLeft(pTextObj, pFont, nItems);
const FX_BOOL bIsBidiAndMirrorInverse =
@@ -1430,7 +1461,7 @@ void CPDF_TextPage::ProcessTextObject(PDFTEXT_Obj Obj) {
int this_width = FXSYS_abs(GetCharWidth(item.m_CharCode, pFont));
threshold = this_width > last_width ? (FX_FLOAT)this_width
: (FX_FLOAT)last_width;
- threshold = _NormalizeThreshold(threshold);
+ threshold = NormalizeThreshold(threshold);
threshold = fontsize_h * threshold / 1000;
}
if (threshold && (spacing && spacing >= threshold)) {
@@ -1898,7 +1929,7 @@ FX_BOOL CPDF_TextPage::IsLetter(FX_WCHAR unicode) {
return TRUE;
}
-CPDF_TextPageFind::CPDF_TextPageFind(const IPDF_TextPage* pTextPage)
+CPDF_TextPageFind::CPDF_TextPageFind(const CPDF_TextPage* pTextPage)
: m_pTextPage(pTextPage),
m_flags(0),
m_findNextStart(-1),
@@ -2054,8 +2085,8 @@ FX_BOOL CPDF_TextPageFind::FindNext() {
CFX_WideString lastWord = m_csFindWhatArray[iWord - 1];
int lastChar = lastWord.GetAt(lastWord.GetLength() - 1);
if (nStartPos == nResultPos &&
- !(_IsIgnoreSpaceCharacter(lastChar) ||
- _IsIgnoreSpaceCharacter(curChar))) {
+ !(IsIgnoreSpaceCharacter(lastChar) ||
+ IsIgnoreSpaceCharacter(curChar))) {
bMatch = FALSE;
}
for (int d = PreResEndPos; d < nResultPos; d++) {
@@ -2174,7 +2205,7 @@ void CPDF_TextPageFind::ExtractFindWhat(const CFX_WideString& findwhat) {
while (pos < csWord.GetLength()) {
CFX_WideString curStr = csWord.Mid(pos, 1);
FX_WCHAR curChar = csWord.GetAt(pos);
- if (_IsIgnoreSpaceCharacter(curChar)) {
+ if (IsIgnoreSpaceCharacter(curChar)) {
if (pos > 0 && curChar == 0x2019) {
pos++;
continue;
@@ -2306,7 +2337,7 @@ CPDF_LinkExtract::~CPDF_LinkExtract() {
DeleteLinkList();
}
-FX_BOOL CPDF_LinkExtract::ExtractLinks(const IPDF_TextPage* pTextPage) {
+FX_BOOL CPDF_LinkExtract::ExtractLinks(const CPDF_TextPage* pTextPage) {
if (!pTextPage || !pTextPage->IsParsed())
return FALSE;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 03:43:24 +0000