Remove a few unused variables, functions, and tables.

core/src/fpdftext/fpdf_text.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "../../include/fpdfapi/fpdf_page.h"
 #include "../../include/fpdfapi/fpdf_pageobj.h"
 #include "../../include/fpdftext/fpdf_text.h"
 #include "txtproc.h"
@@ skipping 110 matching lines @@
         }
         FX_FLOAT char_left = pPosArray[cc * 2];
         FX_FLOAT char_right = pPosArray[cc * 2 + 1];
         cc ++;
         if (char_left < last_left || (char_left - last_right) > spacew / 2) {
             pBaseLine = InsertTextBox(pBaseLine, baseline, leftx + segment_left, leftx + segment_right,
                                       topy, bottomy, spacew, fontsize_v, segment, pFont);
             segment_left = char_left;
             segment = "";
         }
-        CFX_WideString wCh = pText->GetFont()->UnicodeFromCharCode(charcode);
-        FX_DWORD ch = wCh.GetLength() > 0 ? wCh.GetAt(0) : charcode;
         if (space_count > 1) {
             pBaseLine = InsertTextBox(pBaseLine, baseline, leftx + segment_left, leftx + segment_right,
                                       topy, bottomy, spacew, fontsize_v, segment, pFont);
             segment = "";
         } else if (space_count == 1) {
             pFont->AppendChar(segment, ' ');
         }
         if (segment.GetLength() == 0) {
             segment_left = char_left;
         }
@@ skipping 231 matching lines @@
                     n = i + 3;
                 }
                 if(n >= j) {
                     for(int m = start; m < end; m++) {
                         sBuffer += str[m];
                     }
                 } else {
                     i = j;
                     j = n;
                     for(; n <= i; n += 3) {
-                        int ret = order.GetAt(n);
                         int start = order.GetAt(n - 2);
                         int count1 = order.GetAt(n - 1);
                         int end = start + count1 ;
                         for(int m = start; m < end; m++) {
                             sBuffer += str[m];
                         }
                     }
                 }
             }
         }
@@ skipping 159 matching lines @@
                          inter_bottom, inter_top)) {
         return FALSE;
     }
     FX_FLOAT inter_h = inter_top - inter_bottom;
     if (inter_h < (m_Top - m_Bottom) / 2 && inter_h < (pOther->m_Top - pOther->m_Bottom) / 2) {
         return FALSE;
     }
     FX_FLOAT dy = (FX_FLOAT)FXSYS_fabs(m_BaseLine - pOther->m_BaseLine);
     for (int i = 0; i < m_TextList.GetSize(); i ++) {
         CTextBox* pText = (CTextBox*)m_TextList.GetAt(i);
-        FX_FLOAT width = pText->m_Right - pText->m_Left;
         for (int j = 0; j < pOther->m_TextList.GetSize(); j ++) {
             CTextBox* pOtherText = (CTextBox*)pOther->m_TextList.GetAt(j);
             FX_FLOAT inter_left, inter_right;
             if (!GetIntersection(pText->m_Left, pText->m_Right,
                                  pOtherText->m_Left, pOtherText->m_Right, inter_left, inter_right)) {
                 continue;
             }
             FX_FLOAT inter_w = inter_right - inter_left;
             if (inter_w < pText->m_SpaceWidth / 2 && inter_w < pOtherText->m_SpaceWidth / 2) {
                 continue;
@@ skipping 207 matching lines @@
 {
     buffer.EstimateSize(0, 10240);
     CPDF_Page page;
     page.Load(pDoc, pPage);
     CPDF_ParseOptions options;
     options.m_bTextOnly = TRUE;
     options.m_bSeparateForm = FALSE;
     page.ParseContent(&options);
     _PDF_GetTextStream_Unicode(buffer, &page, TRUE, NULL);
 }