ASBeautifier.cpp

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *   ASBeautifier.cpp
 *
 *   Copyright (C) 2006-2011 by Jim Pattee <jimp03@email.com>
 *   Copyright (C) 1998-2002 by Tal Davidson
 *   <http://www.gnu.org/licenses/lgpl-3.0.html>
 *
 *   This file is a part of Artistic Style - an indentation and
 *   reformatting tool for C, C++, C# and Java source files.
 *   <http://astyle.sourceforge.net>
 *
 *   Artistic Style is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as published
 *   by the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   Artistic Style is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with Artistic Style.  If not, see <http://www.gnu.org/licenses/>.
 *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 */

#include "astyle.h"

#include <algorithm>
#include <iostream>


namespace astyle
{

/**
 * ASBeautifier's constructor
 */
ASBeautifier::ASBeautifier()
{
  waitingBeautifierStack = NULL;
  activeBeautifierStack = NULL;
  waitingBeautifierStackLengthStack = NULL;
  activeBeautifierStackLengthStack = NULL;

  headerStack  = NULL;
  tempStacks = NULL;
  blockParenDepthStack = NULL;
  blockStatementStack = NULL;
  parenStatementStack = NULL;
  bracketBlockStateStack = NULL;
  inStatementIndentStack = NULL;
  inStatementIndentStackSizeStack = NULL;
  parenIndentStack = NULL;
  sourceIterator = NULL;
  isMinConditionalManuallySet = false;
  isModeManuallySet = false;
  shouldForceTabIndentation = false;
  setSpaceIndentation(4);
  setMinConditionalIndentOption(MINCOND_TWO);
  setMaxInStatementIndentLength(40);
  classInitializerTabs = 1;
  setClassIndent(false);
  setSwitchIndent(false);
  setCaseIndent(false);
  setBlockIndent(false);
  setBracketIndent(false);
  setNamespaceIndent(false);
  setLabelIndent(false);
  setEmptyLineFill(false);
  setCStyle();
  setPreprocessorIndent(false);

  // initialize ASBeautifier member vectors
  beautifierFileType = 9;		// reset to an invalid type
  headers = new vector<const string*>;
  nonParenHeaders = new vector<const string*>;
  assignmentOperators = new vector<const string*>;
  nonAssignmentOperators = new vector<const string*>;
  preBlockStatements = new vector<const string*>;
  preCommandHeaders = new vector<const string*>;
  indentableHeaders = new vector<const string*>;
}

/**
 * ASBeautifier's copy constructor
 * must explicitly call the base class copy constructor
 */
ASBeautifier::ASBeautifier(const ASBeautifier& other) : ASBase(other)
{
  // Copy the vector objects to vectors in the new ASBeautifier
  // object so the new object can be destroyed without deleting
  // the vector objects in the copied vector.
  // This is the reason a copy constructor is needed.

  // these don't need to copy the stack
  waitingBeautifierStack = NULL;
  activeBeautifierStack = NULL;
  waitingBeautifierStackLengthStack = NULL;
  activeBeautifierStackLengthStack = NULL;

  // vector '=' operator performs a DEEP copy of all elements in the vector

  headerStack  = new vector<const string*>;
  *headerStack = *other.headerStack;

  tempStacks = copyTempStacks(other);

  blockParenDepthStack = new vector<int>;
  *blockParenDepthStack = *other.blockParenDepthStack;

  blockStatementStack = new vector<bool>;
  *blockStatementStack = *other.blockStatementStack;

  parenStatementStack =  new vector<bool>;
  *parenStatementStack = *other.parenStatementStack;

  bracketBlockStateStack = new vector<bool>;
  *bracketBlockStateStack = *other.bracketBlockStateStack;

  inStatementIndentStack = new vector<int>;
  *inStatementIndentStack = *other.inStatementIndentStack;

  inStatementIndentStackSizeStack = new vector<int>;
  *inStatementIndentStackSizeStack = *other.inStatementIndentStackSizeStack;

  parenIndentStack = new vector<int>;
  *parenIndentStack = *other.parenIndentStack;

  // Copy the pointers to vectors.
  // This is ok because the original ASBeautifier object
  // is not deleted until end of job.
  beautifierFileType = other.beautifierFileType;
  headers = other.headers;
  nonParenHeaders = other.nonParenHeaders;
  assignmentOperators = other.assignmentOperators;
  nonAssignmentOperators = other.nonAssignmentOperators;
  preBlockStatements = other.preBlockStatements;
  preCommandHeaders = other.preCommandHeaders;
  indentableHeaders = other.indentableHeaders;

  // protected variables
  // variables set by ASFormatter
  // must also be updated in activeBeautifierStack
  inLineNumber = other.inLineNumber;
  horstmannIndentInStatement = other.horstmannIndentInStatement;
  nonInStatementBracket = other.nonInStatementBracket;
  lineCommentNoBeautify = other.lineCommentNoBeautify;
  isNonInStatementArray = other.isNonInStatementArray;
  isSharpAccessor = other.isSharpAccessor;
  isSharpDelegate = other.isSharpDelegate;
  isInExtern = other.isInExtern;
  isInBeautifySQL = other.isInBeautifySQL;
  isInIndentableStruct = other.isInIndentableStruct;

  // private variables
  sourceIterator = other.sourceIterator;
  currentHeader = other.currentHeader;
  previousLastLineHeader = other.previousLastLineHeader;
  probationHeader = other.probationHeader;
  lastLineHeader = other.lastLineHeader;
  indentString = other.indentString;
  isInQuote = other.isInQuote;
  isInVerbatimQuote = other.isInVerbatimQuote;
  haveLineContinuationChar = other.haveLineContinuationChar;
  isInAsm = other.isInAsm;
  isInAsmOneLine = other.isInAsmOneLine;
  isInAsmBlock = other.isInAsmBlock;
  isInComment = other.isInComment;
  isInHorstmannComment = other.isInHorstmannComment;
  isInCase = other.isInCase;
  isInQuestion = other.isInQuestion;
  isInStatement = other.isInStatement;
  isInHeader = other.isInHeader;
  isInTemplate = other.isInTemplate;
  isInDefine = other.isInDefine;
  isInDefineDefinition = other.isInDefineDefinition;
  classIndent = other.classIndent;
  isInClassInitializer = other.isInClassInitializer;
  isInClassHeaderTab = other.isInClassHeaderTab;
  isInEnum = other.isInEnum;
  switchIndent = other.switchIndent;
  caseIndent = other.caseIndent;
  namespaceIndent = other.namespaceIndent;
  bracketIndent = other.bracketIndent;
  blockIndent = other.blockIndent;
  labelIndent = other.labelIndent;
  preprocessorIndent = other.preprocessorIndent;
  isInConditional = other.isInConditional;
  isMinConditionalManuallySet = other.isMinConditionalManuallySet;
  isModeManuallySet = other.isModeManuallySet;
  shouldForceTabIndentation = other.shouldForceTabIndentation;
  emptyLineFill = other.emptyLineFill;
  lineOpensComment = other.lineOpensComment;
  backslashEndsPrevLine = other.backslashEndsPrevLine;
  blockCommentNoIndent = other.blockCommentNoIndent;
  blockCommentNoBeautify = other.blockCommentNoBeautify;
  previousLineProbationTab = other.previousLineProbationTab;
  lineBeginsWithBracket = other.lineBeginsWithBracket;
  shouldIndentBrackettedLine = other.shouldIndentBrackettedLine;
  isInClass = other.isInClass;
  isInSwitch = other.isInSwitch;
  foundPreCommandHeader = other.foundPreCommandHeader;
  tabCount = other.tabCount;
  spaceTabCount = other.spaceTabCount;
  lineOpeningBlocksNum = other.lineOpeningBlocksNum;
  lineClosingBlocksNum = other.lineClosingBlocksNum;
  fileType = other.fileType;
  minConditionalOption = other.minConditionalOption;
  minConditionalIndent = other.minConditionalIndent;
  parenDepth = other.parenDepth;
  indentLength = other.indentLength;
  blockTabCount = other.blockTabCount;
  maxInStatementIndent = other.maxInStatementIndent;
  classInitializerTabs = other.classInitializerTabs;
  templateDepth = other.templateDepth;
  prevFinalLineSpaceTabCount = other.prevFinalLineSpaceTabCount;
  prevFinalLineTabCount = other.prevFinalLineTabCount;
  defineTabCount = other.defineTabCount;
  quoteChar = other.quoteChar;
  prevNonSpaceCh = other.prevNonSpaceCh;
  currentNonSpaceCh = other.currentNonSpaceCh;
  currentNonLegalCh = other.currentNonLegalCh;
  prevNonLegalCh = other.prevNonLegalCh;
}

/**
 * ASBeautifier's destructor
 */
ASBeautifier::~ASBeautifier()
{
  deleteContainer(waitingBeautifierStack);
  deleteContainer(activeBeautifierStack);
  deleteContainer(waitingBeautifierStackLengthStack);
  deleteContainer(activeBeautifierStackLengthStack);
  deleteContainer(headerStack);
  deleteContainer(tempStacks);
  deleteContainer(blockParenDepthStack);
  deleteContainer(blockStatementStack);
  deleteContainer(parenStatementStack);
  deleteContainer(bracketBlockStateStack);
  deleteContainer(inStatementIndentStack);
  deleteContainer(inStatementIndentStackSizeStack);
  deleteContainer(parenIndentStack);
}

/**
 * initialize the ASBeautifier.
 *
 * init() should be called every time a ABeautifier object is to start
 * beautifying a NEW source file.
 * init() recieves a pointer to a ASSourceIterator object that will be
 * used to iterate through the source code.
 *
 * @param iter     a pointer to the ASSourceIterator or ASStreamIterator object.
 */
void ASBeautifier::init(ASSourceIterator* iter)
{
  sourceIterator = iter;
  init();
}

/**
 * initialize the ASBeautifier.
 */
void ASBeautifier::init()
{
  initVectors();
  ASBase::init(getFileType());

  initContainer(waitingBeautifierStack, new vector<ASBeautifier*>);
  initContainer(activeBeautifierStack, new vector<ASBeautifier*>);

  initContainer(waitingBeautifierStackLengthStack, new vector<int>);
  initContainer(activeBeautifierStackLengthStack, new vector<int>);

  initContainer(headerStack,  new vector<const string*>);

  initContainer(tempStacks, new vector<vector<const string*>*>);
  tempStacks->push_back(new vector<const string*>);

  initContainer(blockParenDepthStack, new vector<int>);
  initContainer(blockStatementStack, new vector<bool>);
  initContainer(parenStatementStack, new vector<bool>);

  initContainer(bracketBlockStateStack, new vector<bool>);
  bracketBlockStateStack->push_back(true);

  initContainer(inStatementIndentStack, new vector<int>);
  initContainer(inStatementIndentStackSizeStack, new vector<int>);
  inStatementIndentStackSizeStack->push_back(0);
  initContainer(parenIndentStack, new vector<int>);

  previousLastLineHeader = NULL;
  currentHeader = NULL;

  isInQuote = false;
  isInVerbatimQuote = false;
  haveLineContinuationChar = false;
  isInAsm = false;
  isInAsmOneLine = false;
  isInAsmBlock = false;
  isInComment = false;
  isInHorstmannComment = false;
  isInStatement = false;
  isInCase = false;
  isInQuestion = false;
  isInClassInitializer = false;
  isInClassHeaderTab = false;
  isInEnum = false;
  isInHeader = false;
  isInTemplate = false;
  isInConditional = false;

  tabCount = 0;
  spaceTabCount = 0;
  lineOpeningBlocksNum = 0;
  lineClosingBlocksNum = 0;
  templateDepth = 0;
  parenDepth = 0;
  blockTabCount = 0;
  prevNonSpaceCh = '{';
  currentNonSpaceCh = '{';
  prevNonLegalCh = '{';
  currentNonLegalCh = '{';
  quoteChar = ' ';
  prevFinalLineSpaceTabCount = 0;
  prevFinalLineTabCount = 0;
  probationHeader = NULL;
  lastLineHeader = NULL;
  backslashEndsPrevLine = false;
  lineOpensComment = false;
  isInDefine = false;
  isInDefineDefinition = false;
  defineTabCount = 0;
  lineCommentNoBeautify = false;
  blockCommentNoIndent = false;
  blockCommentNoBeautify = false;
  previousLineProbationTab = false;
  lineBeginsWithBracket = false;
  shouldIndentBrackettedLine = true;
  isInClass = false;
  isInSwitch = false;
  foundPreCommandHeader = false;
  isNonInStatementArray = false;
  isSharpAccessor = false;
  isSharpDelegate = false;
  isInExtern = false;
  isInBeautifySQL = false;
  isInIndentableStruct = false;
  inLineNumber = 0;
  horstmannIndentInStatement = 0;
  nonInStatementBracket = 0;

  googleClassModifierShift = 1;
  googleAssignmentShift = 4;
}

/*
 * initialize the vectors
 */
void ASBeautifier::initVectors()
{
  if (fileType == beautifierFileType)    // don't build unless necessary
    return;

  beautifierFileType = fileType;

  headers->clear();
  nonParenHeaders->clear();
  assignmentOperators->clear();
  nonAssignmentOperators->clear();
  preBlockStatements->clear();
  preCommandHeaders->clear();
  indentableHeaders->clear();

  ASResource::buildHeaders(headers, fileType, true);
  ASResource::buildNonParenHeaders(nonParenHeaders, fileType, true);
  ASResource::buildAssignmentOperators(assignmentOperators);
  ASResource::buildNonAssignmentOperators(nonAssignmentOperators);
  ASResource::buildPreBlockStatements(preBlockStatements, fileType);
  ASResource::buildPreCommandHeaders(preCommandHeaders, fileType);
  ASResource::buildIndentableHeaders(indentableHeaders);
}

/**
 * set indentation style to C/C++.
 */
void ASBeautifier::setCStyle()
{
  fileType = C_TYPE;
}

/**
 * set indentation style to Java.
 */
void ASBeautifier::setJavaStyle()
{
  fileType = JAVA_TYPE;
}

/**
 * set indentation style to C#.
 */
void ASBeautifier::setSharpStyle()
{
  fileType = SHARP_TYPE;
}

/**
 * set mode manually set flag
 */
void ASBeautifier::setModeManuallySet(bool state)
{
  isModeManuallySet = state;
}

/**
 * indent using one tab per indentation
 */
void ASBeautifier::setTabIndentation(int length, bool forceTabs)
{
  indentString = "\t";
  indentLength = length;
  shouldForceTabIndentation = forceTabs;
}

/**
 * indent using a number of spaces per indentation.
 *
 * @param   length     number of spaces per indent.
 */
void ASBeautifier::setSpaceIndentation(int length)
{
  indentString = string(length, ' ');
  indentLength = length;
}

/**
 * set the maximum indentation between two lines in a multi-line statement.
 *
 * @param   max     maximum indentation length.
 */
void ASBeautifier::setMaxInStatementIndentLength(int max)
{
  maxInStatementIndent = max;
}

/**
 * set the minimum conditional indentation option.
 *
 * @param   min     minimal indentation option.
 */
void ASBeautifier::setMinConditionalIndentOption(int min)
{
  minConditionalOption = min;
}

/**
 * set minConditionalIndent from the minConditionalOption.
 */
void ASBeautifier::setMinConditionalIndentLength()
{
  if (minConditionalOption == MINCOND_ZERO)
    minConditionalIndent = 0;
  else if (minConditionalOption == MINCOND_ONE)
    minConditionalIndent = indentLength;
  else if (minConditionalOption == MINCOND_ONEHALF)
    minConditionalIndent = indentLength / 2;
  // minConditionalOption = INDENT_TWO
  else minConditionalIndent = indentLength * 2;
}

/**
 * set the state of the bracket indentation option. If true, brackets will
 * be indented one additional indent.
 *
 * @param   state             state of option.
 */
void ASBeautifier::setBracketIndent(bool state)
{
  bracketIndent = state;
}

/**
 * set the state of the block indentation option. If true, entire blocks
 * will be indented one additional indent, similar to the GNU indent style.
 *
 * @param   state             state of option.
 */
void ASBeautifier::setBlockIndent(bool state)
{
  blockIndent = state;
}

/**
 * set the state of the class indentation option. If true, C++ class
 * definitions will be indented one additional indent.
 *
 * @param   state             state of option.
 */
void ASBeautifier::setClassIndent(bool state)
{
  classIndent = state;
}

/**
 * set the state of the switch indentation option. If true, blocks of 'switch'
 * statements will be indented one additional indent.
 *
 * @param   state             state of option.
 */
void ASBeautifier::setSwitchIndent(bool state)
{
  switchIndent = state;
}

/**
 * set the state of the case indentation option. If true, lines of 'case'
 * statements will be indented one additional indent.
 *
 * @param   state             state of option.
 */
void ASBeautifier::setCaseIndent(bool state)
{
  caseIndent = state;
}

/**
 * set the state of the namespace indentation option.
 * If true, blocks of 'namespace' statements will be indented one
 * additional indent. Otherwise, NO indentation will be added.
 *
 * @param   state             state of option.
 */
void ASBeautifier::setNamespaceIndent(bool state)
{
  namespaceIndent = state;
}

/**
 * set the state of the label indentation option.
 * If true, labels will be indented one indent LESS than the
 * current indentation level.
 * If false, labels will be flushed to the left with NO
 * indent at all.
 *
 * @param   state             state of option.
 */
void ASBeautifier::setLabelIndent(bool state)
{
  labelIndent = state;
}

/**
 * set the state of the preprocessor indentation option.
 * If true, multiline #define statements will be indented.
 *
 * @param   state             state of option.
 */
void ASBeautifier::setPreprocessorIndent(bool state)
{
  preprocessorIndent = state;
}

/**
 * set the state of the empty line fill option.
 * If true, empty lines will be filled with the whitespace.
 * of their previous lines.
 * If false, these lines will remain empty.
 *
 * @param   state             state of option.
 */
void ASBeautifier::setEmptyLineFill(bool state)
{
  emptyLineFill = state;
}

/**
 * get the file type.
 */
int ASBeautifier::getFileType()
{
  return fileType;
}

/**
 * get the number of spaces per indent
 *
 * @return   value of indentLength option.
 */
int ASBeautifier::getIndentLength(void)
{
  return indentLength;
}

/**
 * get the char used for indentation, space or tab
 *
 * @return   the char used for indentation.
 */
string ASBeautifier::getIndentString(void)
{
  return indentString;
}

/**
 * get mode manually set flag
 */
bool ASBeautifier::getModeManuallySet()
{
  return isModeManuallySet;
}

/**
 * get the state of the force tab indentation option.
 *
 * @return   state of force tab indentation.
 */
bool ASBeautifier::getForceTabIndentation(void)
{
  return shouldForceTabIndentation;
}

/**
 * get the state of the block indentation option.
 *
 * @return   state of blockIndent option.
 */
bool ASBeautifier::getBlockIndent(void)
{
  return blockIndent;
}

/**
 * get the state of the bracket indentation option.
 *
 * @return   state of bracketIndent option.
 */
bool ASBeautifier::getBracketIndent(void)
{
  return bracketIndent;
}

/**
 * get the state of the class indentation option. If true, blocks of
 * the 'class' statement will be indented one additional indent.
 *
 * @return   state of classIndent option.
 */
bool ASBeautifier::getClassIndent(void)
{
  return classIndent;
}

/**
 * get the state of the switch indentation option. If true, blocks of
 * the 'switch' statement will be indented one additional indent.
 *
 * @return   state of switchIndent option.
 */
bool ASBeautifier::getSwitchIndent(void)
{
  return switchIndent;
}

/**
 * get the state of the case indentation option. If true, lines of 'case'
 * statements will be indented one additional indent.
 *
 * @return   state of caseIndent option.
 */
bool ASBeautifier::getCaseIndent(void)
{
  return caseIndent;
}

/**
 * get the state of the empty line fill option.
 * If true, empty lines will be filled with the whitespace.
 * of their previous lines.
 * If false, these lines will remain empty.
 *
 * @return   state of emptyLineFill option.
 */
bool ASBeautifier::getEmptyLineFill(void)
{
  return emptyLineFill;
}

/**
 * get the state of the preprocessor indentation option.
 * If true, preprocessor "define" lines will be indented.
 * If false, preprocessor "define" lines will be unchanged.
 *
 * @return   state of preprocessorIndent option.
 */
bool ASBeautifier::getPreprocessorIndent(void)
{
  return preprocessorIndent;
}

/**
 * beautify a line of source code.
 * every line of source code in a source code file should be sent
 * one after the other to the beautify method.
 *
 * @return      the indented line.
 * @param originalLine       the original unindented line.
 */
string ASBeautifier::beautify(const string& originalLine)
{
  string line;
  bool lineStartsInComment = false;
  bool isInQuoteContinuation = isInVerbatimQuote | haveLineContinuationChar;
  size_t iPrelim;

  currentHeader = NULL;
  lastLineHeader = NULL;
  lineStartsInComment = isInComment;
  blockCommentNoBeautify = blockCommentNoIndent;
  isInClass = false;
  isInSwitch = false;
  lineBeginsWithBracket = false;
  shouldIndentBrackettedLine = true;
  isInAsmOneLine = false;
  lineOpensComment = false;
  previousLineProbationTab = false;
  haveLineContinuationChar = false;
  tabCount = 0;
  spaceTabCount = 0;
  lineOpeningBlocksNum = 0;
  lineClosingBlocksNum = 0;

  // handle and remove white spaces around the line:
  // If not in comment, first find out size of white space before line,
  // so that possible comments starting in the line continue in
  // relation to the preliminary white-space.
  if (isInQuoteContinuation) {
    // trim a single space added by ASFormatter, otherwise leave it alone
    if (!(originalLine.length() == 1 && originalLine[0] == ' '))
      line = originalLine;
  } else if (isInComment || isInBeautifySQL) {
    // trim the end of comment and SQL lines
    line = originalLine;
    size_t trimEnd = line.find_last_not_of(" \t");
    if (trimEnd == string::npos)
      trimEnd = 0;
    else
      trimEnd++;
    if (trimEnd < line.length())
      line.erase(trimEnd);
  } else {
    line = trim(originalLine);
    if (line.length() > 0 && line[0] == '{')
      lineBeginsWithBracket = true;

    isInHorstmannComment = false;
    size_t j = line.find_first_not_of(" \t{");
    if (j != string::npos && line.compare(j, 2, "/*") == 0) {
      lineOpensComment = true;
      size_t k = line.find_first_not_of(" \t");
      if (k != string::npos && line.compare(k, 1, "{") == 0)
        isInHorstmannComment = true;
    }
  }

  if (line.length() == 0) {
    if (backslashEndsPrevLine)  // must continue to clear variables
      line = ' ';
    else if (emptyLineFill && !isInQuoteContinuation
             && (headerStack->size() > 0 || isInEnum))
      return preLineWS(prevFinalLineSpaceTabCount, prevFinalLineTabCount);
    else
      return line;
  }

  // handle preprocessor commands
  // except C# region and endregion
  if (!isInComment
      && line.length() > 0
      && ((line[0] == '#' && !isIndentedPreprocessor(line, 0))
          || backslashEndsPrevLine)) {
    if (line.length() > 0 && line[0] == '#')
      processProcessor(line);

    // check if the last char is a backslash
    if (line.length() > 0)
      backslashEndsPrevLine = (line[line.length() - 1] == '\\');

    // check if this line ends a multi-line #define
    // if so, use the #define's cloned beautifier for the line's indentation
    // and then remove it from the active beautifier stack and delete it.
    if (!backslashEndsPrevLine && isInDefineDefinition && !isInDefine) {
      string beautifiedLine;
      ASBeautifier* defineBeautifier;

      isInDefineDefinition = false;
      defineBeautifier = activeBeautifierStack->back();
      activeBeautifierStack->pop_back();

      beautifiedLine = defineBeautifier->beautify(line);
      delete defineBeautifier;
      return beautifiedLine;
    }

    // unless this is a multi-line #define, return this precompiler line as is.
    if (!isInDefine && !isInDefineDefinition)
      return originalLine;
  }

  // if there exists any worker beautifier in the activeBeautifierStack,
  // then use it instead of me to indent the current line.
  // variables set by ASFormatter must be updated.
  if (!isInDefine && activeBeautifierStack != NULL && !activeBeautifierStack->empty()) {
    activeBeautifierStack->back()->inLineNumber = inLineNumber;
    activeBeautifierStack->back()->horstmannIndentInStatement = horstmannIndentInStatement;
    activeBeautifierStack->back()->nonInStatementBracket = nonInStatementBracket;
    activeBeautifierStack->back()->lineCommentNoBeautify = lineCommentNoBeautify;
    activeBeautifierStack->back()->isNonInStatementArray = isNonInStatementArray;
    activeBeautifierStack->back()->isSharpAccessor = isSharpAccessor;
    activeBeautifierStack->back()->isSharpDelegate = isSharpDelegate;
    activeBeautifierStack->back()->isInExtern = isInExtern;
    activeBeautifierStack->back()->isInBeautifySQL = isInBeautifySQL;
    activeBeautifierStack->back()->isInIndentableStruct = isInIndentableStruct;
    // must return originalLine not the trimmed line
    return activeBeautifierStack->back()->beautify(originalLine);
  }

  // calculate preliminary indentation based on data from past lines

  if (!inStatementIndentStack->empty())
    spaceTabCount = inStatementIndentStack->back();

  computePreliminaryIndentation();

  iPrelim = headerStack->size();

  if (!lineStartsInComment
      && isCStyle()
      && isInClass
      && classIndent
      && headerStack->size() >= 2
      && (*headerStack)[headerStack->size()-2] == &AS_CLASS
      && (*headerStack)[headerStack->size()-1] == &AS_OPEN_BRACKET
      && line.length() > 0
      && line[0] == '}'
      && bracketBlockStateStack->back() == true)
    --tabCount;

  else if (!lineStartsInComment
           && isInSwitch
           && switchIndent
           && headerStack->size() >= 2
           && (*headerStack)[headerStack->size()-2] == &AS_SWITCH
           && (*headerStack)[headerStack->size()-1] == &AS_OPEN_BRACKET
           && line.length() > 0
           && line[0] == '}')
    --tabCount;

  if (isInClassInitializer) {
    if (lineStartsInComment || lineOpensComment) {
      if (!lineBeginsWithBracket)
        tabCount--;
    } else if (isCStyle() && !isClassAccessModifier(line)) {
      isInClassHeaderTab = true;
    } else if (blockIndent) {
      if (!lineBeginsWithBracket)
        tabCount++;
    }
  }
  // handle special case of indented horstmann brackets
  else if (lineStartsInComment && isInHorstmannComment && bracketIndent)
    tabCount++;

  // handle special case of horstmann comment in an indented class statement
  if (isInClass
      && classIndent
      && isInHorstmannComment
      && !lineOpensComment
      && headerStack->size() > 1
      && (*headerStack)[headerStack->size()-2] == &AS_CLASS)
    --tabCount;

  // Flag an indented header in case this line is a one-line block.
  // The header in the header stack will be deleted by a one-line block.
  bool isInExtraHeaderIndent = false;
  if (headerStack->size() > 0
      && line.length() > 0
      && line[0] == '{'
      && (headerStack->back() != &AS_OPEN_BRACKET
          || probationHeader != NULL))
    isInExtraHeaderIndent = true;

  if (isInConditional) {
    --tabCount;
  }

  // parse characters in the current line.
  // increment tabCount and spaceTabCount for the current line
  parseCurrentLine(line);

  // handle special cases of unindentation:

  // unindent a one-line statement in a header indent
  if (!lineStartsInComment
      && !blockIndent
      && line.length() > 0
      && line[0] == '{'
      && headerStack->size() < iPrelim
      && isInExtraHeaderIndent
      && (lineOpeningBlocksNum > 0 && lineOpeningBlocksNum <= lineClosingBlocksNum)
      && shouldIndentBrackettedLine)
    --tabCount;

  /*
   * if '{' doesn't follow an immediately previous '{' in the headerStack
   * (but rather another header such as "for" or "if", then unindent it
   * by one indentation relative to its block.
   */
  else if (!lineStartsInComment
           && !blockIndent
           && line.length() > 0
           && line[0] == '{'
           && !(lineOpeningBlocksNum > 0 && lineOpeningBlocksNum <= lineClosingBlocksNum)
           && (headerStack->size() > 1 && (*headerStack)[headerStack->size()-2] != &AS_OPEN_BRACKET)
           && shouldIndentBrackettedLine)
    --tabCount;

  // must check one less in headerStack if more than one header on a line (allow-addins)...
  else if (!lineStartsInComment
           && headerStack->size() > iPrelim + 1
           && !blockIndent
           && line.length() > 0
           && line[0] == '{'
           && !(lineOpeningBlocksNum > 0 && lineOpeningBlocksNum <= lineClosingBlocksNum)
           && (headerStack->size() > 2 && (*headerStack)[headerStack->size()-3] != &AS_OPEN_BRACKET)
           && shouldIndentBrackettedLine)
    --tabCount;

  // unindent a closing bracket...
  else if (!lineStartsInComment
           && line.length() > 0
           && line[0] == '}'
           && shouldIndentBrackettedLine)
    --tabCount;

  // correctly indent one-line-blocks...
  else if (!lineStartsInComment
           && line.length() > 0
           && lineOpeningBlocksNum > 0
           && lineOpeningBlocksNum == lineClosingBlocksNum
           && previousLineProbationTab)
    --tabCount;

  // correctly indent class continuation lines...
  else if (!lineStartsInComment
           && !lineOpensComment
           && isInClassHeaderTab
           && !blockIndent
           && line.length() > 0
           && lineOpeningBlocksNum == 0
           && lineOpeningBlocksNum == lineClosingBlocksNum
           && (headerStack->size() > 0 && headerStack->back() == &AS_CLASS))
    --tabCount;

  if (tabCount < 0)
    tabCount = 0;

  // take care of extra bracket indentatation option...
  if (!lineStartsInComment
      && bracketIndent
      && shouldIndentBrackettedLine
      && line.length() > 0
      && (line[0] == '{' || line[0] == '}'))
    tabCount++;

  if (isInDefine) {
    if (line.length() > 0 && line[0] == '#') {
      // the 'define' does not have to be attached to the '#'
      string preproc = trim(line.substr(1));
      if (preproc.compare(0, 6, "define") == 0) {
        if (!inStatementIndentStack->empty()
            && inStatementIndentStack->back() > 0) {
          defineTabCount = tabCount;
        } else {
          defineTabCount = tabCount - 1;
          tabCount--;
        }
      }
    }

    tabCount -= defineTabCount;
  }

  if (tabCount < 0)
    tabCount = 0;
  if (lineCommentNoBeautify || blockCommentNoBeautify || isInQuoteContinuation)
    tabCount = spaceTabCount = 0;

  // finally, insert indentations into begining of line

  if (shouldForceTabIndentation) {
    tabCount += spaceTabCount / indentLength;
    spaceTabCount = spaceTabCount % indentLength;
  }

  string outBuffer = preLineWS(spaceTabCount, tabCount) + line;

  prevFinalLineSpaceTabCount = spaceTabCount;
  prevFinalLineTabCount = tabCount;

  if (lastLineHeader != NULL)
    previousLastLineHeader = lastLineHeader;

  return outBuffer;
}


string ASBeautifier::preLineWS(int spaceTabCount_, int tabCount_)
{
  string ws;

  for (int i = 0; i < tabCount_; i++)
    ws += indentString;

  while ((spaceTabCount_--) > 0)
    ws += string(" ");

  return ws;

}

bool ASBeautifier::isClassAccessModifier(const string& line) const
{
  size_t firstChar = line.find_first_not_of(" \t");
  if (firstChar == string::npos)
    return false;
  // bypass a colon
  if (line[firstChar] == ':') {
    firstChar = line.find_first_not_of(" \t");
    if (firstChar == string::npos)
      return false;
  }
  if (line.compare(firstChar, 7, "public ") == 0
      || line.compare(firstChar, 8, "private ") == 0
      || line.compare(firstChar, 10, "protected ") == 0)
    return true;
  return false;
}

/**
 * register an in-statement indent.
 */
void ASBeautifier::registerInStatementIndent(const string& line, int i, int spaceTabCount_,
    int tabIncrementIn, int minIndent, bool updateParenStack)
{
  int inStatementIndent;
  int remainingCharNum = line.length() - i;
  int nextNonWSChar = getNextProgramCharDistance(line, i);

  // if indent is around the last char in the line, indent instead one indent from the previous indent
  // TODO(xuy): change code here.
  // This is the end of the line.
  if (nextNonWSChar == remainingCharNum) {
    int previousIndent = spaceTabCount_;
    if (!inStatementIndentStack->empty())
      previousIndent = inStatementIndentStack->back();
    int currIndent = /*2*/ 4 +  spaceTabCount_;
    if (currIndent > maxInStatementIndent
        && line[i] != '{')
      currIndent = indentLength * 2 + spaceTabCount_;
    inStatementIndentStack->push_back(currIndent);
    if (updateParenStack)
      parenIndentStack->push_back(previousIndent);
    return;
  }

  if (updateParenStack)
    parenIndentStack->push_back(i + spaceTabCount_ - horstmannIndentInStatement);

  int tabIncrement = tabIncrementIn;

  // check for following tabs
  for (int j = i + 1; j < (i + nextNonWSChar); j++) {
    if (line[j] == '\t')
      tabIncrement += convertTabToSpaces(j, tabIncrement);
  }

  inStatementIndent = i + nextNonWSChar + spaceTabCount_ + tabIncrement;

  // check for run-in statement
  if (i > 0 && line[0] == '{')
    inStatementIndent -= indentLength;

//	if (i + nextNonWSChar < minIndent)
//		inStatementIndent = minIndent + spaceTabCount_;

  if (inStatementIndent < minIndent)
    inStatementIndent = minIndent + spaceTabCount_;

//	if (i + nextNonWSChar > maxInStatementIndent)
//		inStatementIndent =  indentLength * 2 + spaceTabCount_;

  if (inStatementIndent > maxInStatementIndent)
    inStatementIndent = indentLength * 2 + spaceTabCount_;

  if (!inStatementIndentStack->empty() &&
      inStatementIndent < inStatementIndentStack->back())
    inStatementIndent = inStatementIndentStack->back();

  // the block opener is not indented for a NonInStatementArray
  if (isNonInStatementArray && !bracketBlockStateStack->empty() && bracketBlockStateStack->back())
    inStatementIndent = 0;

  inStatementIndentStack->push_back(inStatementIndent);
}

/**
 * get distance to the next non-white space, non-comment character in the line.
 * if no such character exists, return the length remaining to the end of the line.
 */
int ASBeautifier::getNextProgramCharDistance(const string& line, int i) const
{
  bool inComment = false;
  int  remainingCharNum = line.length() - i;
  int  charDistance;
  char ch;

  for (charDistance = 1; charDistance < remainingCharNum; charDistance++) {
    ch = line[i + charDistance];
    if (inComment) {
      if (line.compare(i + charDistance, 2, "*/") == 0) {
        charDistance++;
        inComment = false;
      }
      continue;
    } else if (isWhiteSpace(ch))
      continue;
    else if (ch == '/') {
      if (line.compare(i + charDistance, 2, "//") == 0)
        return remainingCharNum;
      else if (line.compare(i + charDistance, 2, "/*") == 0) {
        charDistance++;
        inComment = true;
      }
    } else
      return charDistance;
  }

  return charDistance;
}

// check if a specific line position contains a header.
const string* ASBeautifier::findHeader(const string& line, int i,
                                       const vector<const string*>* possibleHeaders) const
{
  assert(isCharPotentialHeader(line, i));
  // check the word
  size_t maxHeaders = possibleHeaders->size();
  for (size_t p = 0; p < maxHeaders; p++) {
    const string* header = (*possibleHeaders)[p];
    const size_t wordEnd = i + header->length();
    if (wordEnd > line.length())
      continue;
    int result = (line.compare(i, header->length(), *header));
    if (result > 0)
      continue;
    if (result < 0)
      break;
    // check that this is not part of a longer word
    if (wordEnd == line.length())
      return header;
    if (isLegalNameChar(line[wordEnd]))
      continue;
    const char peekChar = peekNextChar(line, wordEnd - 1);
    // is not a header if part of a definition
    if (peekChar == ',' || peekChar == ')')
      break;
    // the following accessor definitions are NOT headers
    // goto default; is NOT a header
    // default(int) keyword in C# is NOT a header
    else if ((header == &AS_GET || header == &AS_SET || header == &AS_DEFAULT)
             && (peekChar == ';' ||  peekChar == '('))
      break;
    return header;
  }
  return NULL;
}

// check if a specific line position contains an operator.
const string* ASBeautifier::findOperator(const string& line, int i,
    const vector<const string*>* possibleOperators) const
{
  assert(isCharPotentialOperator(line[i]));
  // find the operator in the vector
  // the vector contains the LONGEST operators first
  // must loop thru the entire vector
  size_t maxOperators = possibleOperators->size();
  for (size_t p = 0; p < maxOperators; p++) {
    const size_t wordEnd = i + (*(*possibleOperators)[p]).length();
    if (wordEnd > line.length())
      continue;
    if (line.compare(i, (*(*possibleOperators)[p]).length(), *(*possibleOperators)[p]) == 0)
      return (*possibleOperators)[p];
  }
  return NULL;
}

/**
 * find the index number of a string element in a container of strings
 *
 * @return              the index number of element in the container. -1 if element not found.
 * @param container     a vector of strings.
 * @param element       the element to find .
 */
int ASBeautifier::indexOf(vector<const string*> &container, const string* element)
{
  vector<const string*>::const_iterator where;

  where = find(container.begin(), container.end(), element);
  if (where == container.end())
    return -1;
  else
    return (int) (where - container.begin());
}

/**
 * convert tabs to spaces.
 * i is the position of the character to convert to spaces.
 * tabIncrementIn is the increment that must be added for tab indent characters
 *     to get the correct column for the current tab.
 */
int ASBeautifier::convertTabToSpaces(int i, int tabIncrementIn) const
{
  int tabToSpacesAdjustment = indentLength - 1 - ((tabIncrementIn + i) % indentLength);
  return tabToSpacesAdjustment;
}

/**
 * trim removes the white space surrounding a line.
 *
 * @return          the trimmed line.
 * @param str       the line to trim.
 */
string ASBeautifier::trim(const string& str)
{

  int start = 0;
  int end = str.length() - 1;

  while (start < end && isWhiteSpace(str[start]))
    start++;

  while (start <= end && isWhiteSpace(str[end]))
    end--;

  string returnStr(str, start, end + 1 - start);
  return returnStr;
}

/**
 * Copy tempStacks for the copy constructor.
 * The value of the vectors must also be copied.
 */
vector<vector<const string*>*>* ASBeautifier::copyTempStacks(const ASBeautifier& other) const
{
  vector<vector<const string*>*> *tempStacksNew = new vector<vector<const string*>*>;
  vector<vector<const string*>*>::iterator iter;
  for (iter = other.tempStacks->begin();
       iter != other.tempStacks->end();
       ++iter) {
    vector<const string*> *newVec = new vector<const string*>;
    *newVec = **iter;
    tempStacksNew->push_back(newVec);
  }
  return tempStacksNew;
}

/**
 * delete a member vectors to eliminate memory leak reporting
 */
void ASBeautifier::deleteBeautifierVectors()
{
  beautifierFileType = 9;		// reset to an invalid type
  delete headers;
  delete nonParenHeaders;
  delete preBlockStatements;
  delete preCommandHeaders;
  delete assignmentOperators;
  delete nonAssignmentOperators;
  delete indentableHeaders;
}

/**
 * delete a vector object
 * T is the type of vector
 * used for all vectors except tempStacks
 */
template<typename T>
void ASBeautifier::deleteContainer(T& container)
{
  if (container != NULL) {
    container->clear();
    delete (container);
    container = NULL;
  }
}

/**
 * Delete the tempStacks vector object.
 * The tempStacks is a vector of pointers to strings allocated with
 * the 'new' operator.
 * Therefore the strings have to be deleted in addition to the
 * tempStacks entries.
 */
void ASBeautifier::deleteContainer(vector<vector<const string*>*>* &container)
{
  if (container != NULL) {
    vector<vector<const string*>*>::iterator iter = container->begin();
    for (; iter != container->end(); iter++)
      delete *iter;
    container->clear();
    delete (container);
    container = NULL;
  }
}

/**
 * initialize a vector object
 * T is the type of vector
 * used for all vectors
 */
template<typename T>
void ASBeautifier::initContainer(T& container, T value)
{
  // since the ASFormatter object is never deleted,
  // the existing vectors must be deleted before creating new ones
  if (container != NULL )
    deleteContainer(container);
  container = value;
}

/**
 * Determine if an assignment statement ends with a comma
 *     that is not in a function argument. It ends with a
 *     comma if a comma is the last char on the line.
 *
 * @return  true if line ends with a comma, otherwise false.
 */
bool ASBeautifier::statementEndsWithComma(const string& line, int index) const
{
  assert(line[index] == '=');

  bool isInComment_ = false;
  bool isInQuote_ = false;
  int parenCount = 0;
  size_t lineLength = line.length();
  size_t i = 0;
  char quoteChar_ = ' ';

  for (i = index + 1; i < lineLength; ++i) {
    char ch = line[i];

    if (isInComment_) {
      if (line.compare(i, 2, "*/") == 0) {
        isInComment_ = false;
        ++i;
      }
      continue;
    }

    if (ch == '\\') {
      ++i;
      continue;
    }

    if (isInQuote_) {
      if (ch == quoteChar_)
        isInQuote_ = false;
      continue;
    }

    if (ch == '"' || ch == '\'') {
      isInQuote_ = true;
      quoteChar_ = ch;
      continue;
    }

    if (line.compare(i, 2, "//") == 0)
      break;

    if (line.compare(i, 2, "/*") == 0) {
      if (isLineEndComment(line, i))
        break;
      else {
        isInComment_ = true;
        ++i;
        continue;
      }
    }

    if (ch == '(')
      parenCount++;
    if (ch == ')')
      parenCount--;
  }
  if (isInComment_
      || isInQuote_
      || parenCount > 0)
    return false;

  size_t lastChar = line.find_last_not_of(" \t", i - 1);

  if (lastChar == string::npos || line[lastChar] != ',')
    return false;

  return true;
}

/**
 * check if current comment is a line-end comment
 *
 * @return     is before a line-end comment.
 */
bool ASBeautifier::isLineEndComment(const string& line, int startPos) const
{
  assert(line.compare(startPos, 2, "/*") == 0);

  // comment must be closed on this line with nothing after it
  size_t endNum = line.find("*/", startPos + 2);
  if (endNum != string::npos) {
    size_t nextChar = line.find_first_not_of(" \t", endNum + 2);
    if (nextChar == string::npos)
      return true;
  }
  return false;
}

/**
 * get the previous word index for an assignment operator
 *
 * @return is the index to the previous word (the in statement indent).
 */
int ASBeautifier::getInStatementIndentAssign(const string& line, size_t currPos) const
{
  assert(line[currPos] == '=');

  if (currPos == 0)
    return 0;

  // get the last legal word (may be a number)
  size_t end = line.find_last_not_of(" \t", currPos-1);
  if (end == string::npos || !isLegalNameChar(line[end]))
    return 0;

  int start;          // start of the previous word
  for (start = end; start > -1; start--) {
    if (!isLegalNameChar(line[start]) || line[start] == '.')
      break;
  }
  start++;

  return start;
}

/**
 * get the instatement indent for a comma
 *
 * @return is the indent to the second word on the line (the in statement indent).
 */
int ASBeautifier::getInStatementIndentComma(const string& line, size_t currPos) const
{
  assert(line[currPos] == ',');

  // get first word on a line
  size_t indent = line.find_first_not_of(" \t");
  if (indent == string::npos || !isLegalNameChar(line[indent]))
    return 0;

  // bypass first word
  for (; indent < currPos; indent++) {
    if (!isLegalNameChar(line[indent]))
      break;
  }
  indent++;
  if (indent >= currPos)
    return 0;

  // point to second word or assignment operator
  indent = line.find_first_not_of(" \t", indent);
  if (indent == string::npos || indent >= currPos)
    return 0;

  return indent;
}

/**
 * get the next word on a line
 * the argument 'currPos' must point to the current position.
 *
 * @return is the previous word or an empty string if none found.
 */
string ASBeautifier::getNextWord(const string& line, size_t currPos) const
{
  size_t lineLength = line.length();
  // get the last legal word (may be a number)
  if (currPos == lineLength - 1)
    return string();

  size_t start = line.find_first_not_of(" \t", currPos+1);
  if (start == string::npos || !isLegalNameChar(line[start]))
    return string();

  size_t end;			// end of the current word
  for (end = start+1; end <= lineLength; end++) {
    if (!isLegalNameChar(line[end]) || line[end] == '.')
      break;
  }

  return line.substr(start, end-start);
}

/**
 * Check if a preprocessor directive is always indented.
 * C# "region" and "endregion" are always indented.
 * C/C++ "pragma omp" is always indented.
 *
 * @return is true or false.
 */
bool ASBeautifier::isIndentedPreprocessor(const string& line, size_t currPos) const
{
  assert(line[0] == '#');
  string nextWord = getNextWord(line, currPos);
  if (nextWord == "region" || nextWord == "endregion")
    return true;
  // is it #pragma omp
  if (nextWord == "pragma") {
    // find pragma
    size_t start = line.find("pragma");
    if (start == string::npos || !isLegalNameChar(line[start]))
      return false;
    // bypass pragma
    for (; start < line.length(); start++) {
      if (!isLegalNameChar(line[start]))
        break;
    }
    start++;
    if (start >= line.length())
      return false;
    // point to start of second word
    start = line.find_first_not_of(" \t", start);
    if (start == string::npos)
      return false;
    // point to end of second word
    size_t end;
    for (end = start; end < line.length(); end++) {
      if (!isLegalNameChar(line[end]))
        break;
    }
    // check for "pragma omp"
    string word = line.substr(start, end - start);
    if (word == "omp" || word == "region" || word == "endregion")
      return true;
  }
  return false;
}

// for unit testing
int ASBeautifier::getBeautifierFileType() const
{
  return beautifierFileType;
}

/**
 * Process preprocessor statements and update the beautifier stacks.
 */
void ASBeautifier::processProcessor(string& line)
{
  string preproc = trim(string(line.c_str() + 1));

  // When finding a multi-lined #define statement, the original beautifier
  // 1. sets its isInDefineDefinition flag
  // 2. clones a new beautifier that will be used for the actual indentation
  //    of the #define. This clone is put into the activeBeautifierStack in order
  //    to be called for the actual indentation.
  // The original beautifier will have isInDefineDefinition = true, isInDefine = false
  // The cloned beautifier will have   isInDefineDefinition = true, isInDefine = true
  if (preprocessorIndent && preproc.compare(0, 6, "define") == 0 && line[line.length() - 1] == '\\') {
    if (!isInDefineDefinition) {
      ASBeautifier* defineBeautifier;

      // this is the original beautifier
      isInDefineDefinition = true;

      // push a new beautifier into the active stack
      // this beautifier will be used for the indentation of this define
      defineBeautifier = new ASBeautifier(*this);
      activeBeautifierStack->push_back(defineBeautifier);
    } else {
      // the is the cloned beautifier that is in charge of indenting the #define.
      isInDefine = true;
    }
  } else if (preproc.compare(0, 2, "if") == 0) {
    // push a new beautifier into the stack
    waitingBeautifierStackLengthStack->push_back(waitingBeautifierStack->size());
    activeBeautifierStackLengthStack->push_back(activeBeautifierStack->size());
    if (activeBeautifierStackLengthStack->back() == 0)
      waitingBeautifierStack->push_back(new ASBeautifier(*this));
    else
      waitingBeautifierStack->push_back(new ASBeautifier(*activeBeautifierStack->back()));
  } else if (preproc.compare(0, 4, "else") == 0) {
    if (waitingBeautifierStack && !waitingBeautifierStack->empty()) {
      // MOVE current waiting beautifier to active stack.
      activeBeautifierStack->push_back(waitingBeautifierStack->back());
      waitingBeautifierStack->pop_back();
    }
  } else if (preproc.compare(0, 4, "elif") == 0) {
    if (waitingBeautifierStack && !waitingBeautifierStack->empty()) {
      // append a COPY current waiting beautifier to active stack, WITHOUT deleting the original.
      activeBeautifierStack->push_back(new ASBeautifier(*(waitingBeautifierStack->back())));
    }
  } else if (preproc.compare(0, 5, "endif") == 0) {
    int stackLength;
    ASBeautifier* beautifier;

    if (waitingBeautifierStackLengthStack && !waitingBeautifierStackLengthStack->empty()) {
      stackLength = waitingBeautifierStackLengthStack->back();
      waitingBeautifierStackLengthStack->pop_back();
      while ((int) waitingBeautifierStack->size() > stackLength) {
        beautifier = waitingBeautifierStack->back();
        waitingBeautifierStack->pop_back();
        delete beautifier;
      }
    }

    if (!activeBeautifierStackLengthStack->empty()) {
      stackLength = activeBeautifierStackLengthStack->back();
      activeBeautifierStackLengthStack->pop_back();
      while ((int) activeBeautifierStack->size() > stackLength) {
        beautifier = activeBeautifierStack->back();
        activeBeautifierStack->pop_back();
        delete beautifier;
      }
    }
  }
}

void ASBeautifier::computePreliminaryIndentation()
{
  for (size_t i = 0; i < headerStack->size(); i++) {
    isInClass = false;

    if (blockIndent) {
      // do NOT indent opening block for these headers
      if (!((*headerStack)[i] == &AS_NAMESPACE
            || (*headerStack)[i] == &AS_CLASS
            || (*headerStack)[i] == &AS_STRUCT
            || (*headerStack)[i] == &AS_UNION
            || (*headerStack)[i] == &AS_INTERFACE
            || (*headerStack)[i] == &AS_THROWS
            || (*headerStack)[i] == &AS_STATIC))
        ++tabCount;
    } else if (!(i > 0 && (*headerStack)[i-1] != &AS_OPEN_BRACKET
                 && (*headerStack)[i] == &AS_OPEN_BRACKET))
      ++tabCount;

    if (!isJavaStyle() && !namespaceIndent && i >= 1
        && (*headerStack)[i-1] == &AS_NAMESPACE
        && (*headerStack)[i] == &AS_OPEN_BRACKET)
      --tabCount;

    if (isCStyle() && i >= 1
        && (*headerStack)[i-1] == &AS_CLASS
        && (*headerStack)[i] == &AS_OPEN_BRACKET) {
      if (classIndent)
        ++tabCount;
      isInClass = true;
    }

    // is the switchIndent option is on, indent switch statements an additional indent.
    else if (switchIndent && i > 1
             && (*headerStack)[i-1] == &AS_SWITCH
             && (*headerStack)[i] == &AS_OPEN_BRACKET) {
      ++tabCount;
      isInSwitch = true;
    }

  }	// end of for loop * end of for loop * end of for loop * end of for loop * end of for loop *
}

/**
 * Parse the current line to update tabCount and spaceTabCount.
 */
void ASBeautifier::parseCurrentLine(const string& line)
{
  bool isInLineComment = false;
  bool isInOperator = false;
  bool isSpecialChar = false;
  bool haveCaseIndent = false;
  bool haveAssignmentThisLine = false;
  bool closingBracketReached = false;
  bool previousLineProbation = (probationHeader != NULL);
  char ch = ' ';
  char prevCh;
  char tempCh;
  int tabIncrementIn = 0;

  /*
    // This is a generic match, should be at the end of it.
  	if (ch == '=' || ch == '>') {
      spaceTabCount += 4;
    }
  */
  for (size_t i = 0; i < line.length(); i++) {
    tempCh = line[i];
    prevCh = ch;
    ch = tempCh;

    // Handle -> at the end of the line.
    /*
    if (ch == '>' && prevCh == '-' && i == line.length() - 1) {
      int inStatementIndent = spaceTabCount +
                              googleAssignmentShift + tabIncrementIn;
      inStatementIndentStack->push_back(inStatementIndent);
      registerInStatementIndent(line, i, spaceTabCount, tabIncrementIn, 0, false);
    }*/

    if (isInBeautifySQL)
      continue;

    if (isWhiteSpace(ch)) {
      if (ch == '\t')
        tabIncrementIn += convertTabToSpaces(i, tabIncrementIn);
      continue;
    }

    // handle special characters (i.e. backslash+character such as \n, \t, ...)

    if (isInQuote && !isInVerbatimQuote) {
      if (isSpecialChar) {
        isSpecialChar = false;
        continue;
      }
      if (line.compare(i, 2, "\\\\") == 0) {
        i++;
        continue;
      }
      if (ch == '\\') {
        if (peekNextChar(line, i) == ' ')   // is this '\' at end of line
          haveLineContinuationChar = true;
        else
          isSpecialChar = true;
        continue;
      }
    } else if (isInDefine && ch == '\\')
      continue;

    // handle quotes (such as 'x' and "Hello Dolly")
    if (!(isInComment || isInLineComment) && (ch == '"' || ch == '\'')) {
      if (!isInQuote) {
        quoteChar = ch;
        isInQuote = true;
        if (isSharpStyle() && prevCh == '@')
          isInVerbatimQuote = true;
      } else if (isInVerbatimQuote && ch == '"') {
        if (peekNextChar(line, i) == '"')           // check consecutive quotes
          i++;
        else {
          isInQuote = false;
          isInVerbatimQuote = false;
        }
      } else if (quoteChar == ch) {
        isInQuote = false;
        isInStatement = true;
        continue;
      }
    }
    if (isInQuote)
      continue;

    // handle comments

    if (!(isInComment || isInLineComment) && line.compare(i, 2, "//") == 0) {
      isInLineComment = true;
      i++;
      continue;
    } else if (!(isInComment || isInLineComment) && line.compare(i, 2, "/*") == 0) {
      isInComment = true;
      i++;
      if (!lineOpensComment)					// does line start with comment?
        blockCommentNoIndent = true;        // if no, cannot indent continuation lines
      continue;
    } else if ((isInComment || isInLineComment) && line.compare(i, 2, "*/") == 0) {
      isInComment = false;
      i++;
      blockCommentNoIndent = false;           // ok to indent next comment
      continue;
    }
    // treat indented preprocessor lines as a line comment
    else if (line[0] == '#' && isIndentedPreprocessor(line, i)) {
      isInLineComment = true;
    }

    if (isInComment || isInLineComment) {
      // bypass rest of the comment up to the comment end
      while (i+1 < line.length()
             && line.compare(i+1, 2, "*/") != 0)
        i++;
      continue;
    }

    // if we have reached this far then we are NOT in a comment or string of special character...

    if (probationHeader != NULL) {
      if ((probationHeader == &AS_STATIC && ch == '{')
          || (probationHeader == &AS_SYNCHRONIZED && ch == '(')) {
        // insert the probation header as a new header
        isInHeader = true;
        headerStack->push_back(probationHeader);

        // handle the specific probation header
        isInConditional = (probationHeader == &AS_SYNCHRONIZED);

        isInStatement = false;
        // if the probation comes from the previous line, then indent by 1 tab count.
        if (previousLineProbation
            && ch == '{'
            && !(blockIndent && probationHeader == &AS_STATIC)) {
          tabCount++;
          previousLineProbationTab = true;
        }
        previousLineProbation = false;
      }

      // dismiss the probation header
      probationHeader = NULL;
    }

    prevNonSpaceCh = currentNonSpaceCh;
    currentNonSpaceCh = ch;
    if (!isLegalNameChar(ch) && ch != ',' && ch != ';') {
      prevNonLegalCh = currentNonLegalCh;
      currentNonLegalCh = ch;
    }

    if (isInHeader) {
      isInHeader = false;
      currentHeader = headerStack->back();
    } else
      currentHeader = NULL;

    if (isCStyle() && isInTemplate
        && (ch == '<' || ch == '>')
        &&  findOperator(line, i, nonAssignmentOperators) == NULL) {
      if (ch == '<') {
        ++templateDepth;
      } else if (ch == '>') {
        if (--templateDepth <= 0) {
          ch = ';';
          isInTemplate = false;
          templateDepth = 0;
        }
      }
    }

    // handle parenthesies
    if (ch == '(' || ch == '[' || ch == ')' || ch == ']') {
      if (ch == '(' || ch == '[') {
        isInOperator = false;
        // if have a struct header, this is a declaration not a definition
        if (ch == '('
            && (isInClassInitializer || isInClassHeaderTab)
            && headerStack->size() > 0
            && headerStack->back() == &AS_STRUCT) {
          headerStack->pop_back();
          isInClassInitializer = false;
          // -1 for isInClassInitializer, -2 for isInClassHeaderTab
          if (isInClassHeaderTab) {
            tabCount -= (1 + classInitializerTabs);
            isInClassHeaderTab = false;
          }
          if (tabCount < 0)
            tabCount = 0;
        }
        if (parenDepth == 0) {
          parenStatementStack->push_back(isInStatement);
          isInStatement = true;
        }
        parenDepth++;

        inStatementIndentStackSizeStack->push_back(inStatementIndentStack->size());

        if (currentHeader != NULL)
          registerInStatementIndent(line, i, spaceTabCount, tabIncrementIn, minConditionalIndent/*indentLength*2*/, true);
        else
          registerInStatementIndent(line, i, spaceTabCount, tabIncrementIn, 0, true);
      } else if (ch == ')' || ch == ']') {
        foundPreCommandHeader = false;
        parenDepth--;
        if (parenDepth == 0) {
          if (!parenStatementStack->empty()) {    // in case of unmatched closing parens
            isInStatement = parenStatementStack->back();
            parenStatementStack->pop_back();
          }
          ch = ' ';
          isInAsm = false;
          isInConditional = false;
        }

        if (!inStatementIndentStackSizeStack->empty()) {
          int previousIndentStackSize = inStatementIndentStackSizeStack->back();
          inStatementIndentStackSizeStack->pop_back();
          while (previousIndentStackSize < (int) inStatementIndentStack->size())
            inStatementIndentStack->pop_back();

          if (!parenIndentStack->empty()) {
            int poppedIndent = parenIndentStack->back();
            parenIndentStack->pop_back();

            if (i == 0)
              spaceTabCount = poppedIndent;
          }
        }
      }

      continue;
    }


    if (ch == '{') {
      // first, check if '{' is a block-opener or an static-array opener
      bool isBlockOpener = ((prevNonSpaceCh == '{' && bracketBlockStateStack->back())
                            || prevNonSpaceCh == '}'
                            || prevNonSpaceCh == ')'
                            || prevNonSpaceCh == ';'
                            || peekNextChar(line, i) == '{'
                            || foundPreCommandHeader
                            || isInClassInitializer
                            || isNonInStatementArray
                            || isSharpAccessor
                            || isSharpDelegate
                            || isInExtern
                            || getNextWord(line, i) == "new"
                            || (isInDefine &&
                                (prevNonSpaceCh == '('
                                 || isLegalNameChar(prevNonSpaceCh))));

      // remove inStatementIndent for C++ class initializer
      if (isInClassInitializer) {
        if (inStatementIndentStack->size() > 0)
          inStatementIndentStack->pop_back();
        isInStatement = false;
        if (lineBeginsWithBracket)
          spaceTabCount = 0;
        isInClassInitializer = false;
      }

      if (!isBlockOpener && currentHeader != NULL) {
        for (size_t n = 0; n < nonParenHeaders->size(); n++)
          if (currentHeader == (*nonParenHeaders)[n]) {
            isBlockOpener = true;
            break;
          }
      }

      bracketBlockStateStack->push_back(isBlockOpener);

      if (!isBlockOpener) {
        inStatementIndentStackSizeStack->push_back(inStatementIndentStack->size());
        registerInStatementIndent(line, i, spaceTabCount, tabIncrementIn, 0, true);
        parenDepth++;
        if (i == 0)
          shouldIndentBrackettedLine = false;

        continue;
      }

      // this bracket is a block opener...

      ++lineOpeningBlocksNum;

      if (isInClassHeaderTab) {
        isInClassHeaderTab = false;
        // decrease tab count if bracket is broken
        size_t firstChar = line.find_first_not_of(" \t");
        if (firstChar != string::npos
            && line[firstChar] == '{'
            && firstChar == i) {
          tabCount -= classInitializerTabs;
          // decrease one more if an empty class
          if (headerStack->size() > 0
              && (*headerStack).back() == &AS_CLASS) {
            int nextChar = getNextProgramCharDistance(line, i);
            if ((int)line.length() > nextChar && line[nextChar] == '}')
              tabCount--;
          }
        }
      }

      if (bracketIndent && !namespaceIndent && headerStack->size() > 0
          && (*headerStack).back() == &AS_NAMESPACE) {
        shouldIndentBrackettedLine = false;
        tabCount--;
      }

      // an indentable struct is treated like a class in the header stack
      if (headerStack->size() > 0
          && (*headerStack).back() == &AS_STRUCT
          && isInIndentableStruct)
        (*headerStack).back() = &AS_CLASS;

      blockParenDepthStack->push_back(parenDepth);
      blockStatementStack->push_back(isInStatement);

      inStatementIndentStackSizeStack->push_back(inStatementIndentStack->size());
      if (inStatementIndentStack->size() > 0) {
        spaceTabCount = 0;
        inStatementIndentStack->back() = 0;
      }

      blockTabCount += isInStatement ? 1 : 0;
      parenDepth = 0;
      isInStatement = false;
      foundPreCommandHeader = false;

      tempStacks->push_back(new vector<const string*>);
      headerStack->push_back(&AS_OPEN_BRACKET);
      lastLineHeader = &AS_OPEN_BRACKET;

      continue;
    }	// end '{'

    //check if a header has been reached
    bool isPotentialHeader = isCharPotentialHeader(line, i);

    if (isPotentialHeader) {
      const string* newHeader = findHeader(line, i, headers);

      if (newHeader != NULL) {
        // if we reached here, then this is a header...
        bool isIndentableHeader = true;

        isInHeader = true;

        vector<const string*> *lastTempStack;
        if (tempStacks->empty())
          lastTempStack = NULL;
        else
          lastTempStack = tempStacks->back();

        // if a new block is opened, push a new stack into tempStacks to hold the
        // future list of headers in the new block.

        // take care of the special case: 'else if (...)'
        if (newHeader == &AS_IF && lastLineHeader == &AS_ELSE) {
          headerStack->pop_back();
        }

        // take care of 'else'
        else if (newHeader == &AS_ELSE) {
          if (lastTempStack != NULL) {
            int indexOfIf = indexOf(*lastTempStack, &AS_IF);
            if (indexOfIf != -1) {
              // recreate the header list in headerStack up to the previous 'if'
              // from the temporary snapshot stored in lastTempStack.
              int restackSize = lastTempStack->size() - indexOfIf - 1;
              for (int r = 0; r < restackSize; r++) {
                headerStack->push_back(lastTempStack->back());
                lastTempStack->pop_back();
              }
              if (!closingBracketReached)
                tabCount += restackSize;
            }
            /*
             * If the above if is not true, i.e. no 'if' before the 'else',
             * then nothing beautiful will come out of this...
             * I should think about inserting an Exception here to notify the caller of this...
             */
          }
        }

        // check if 'while' closes a previous 'do'
        else if (newHeader == &AS_WHILE) {
          if (lastTempStack != NULL) {
            int indexOfDo = indexOf(*lastTempStack, &AS_DO);
            if (indexOfDo != -1) {
              // recreate the header list in headerStack up to the previous 'do'
              // from the temporary snapshot stored in lastTempStack.
              int restackSize = lastTempStack->size() - indexOfDo - 1;
              for (int r = 0; r < restackSize; r++) {
                headerStack->push_back(lastTempStack->back());
                lastTempStack->pop_back();
              }
              if (!closingBracketReached)
                tabCount += restackSize;
            }
          }
        }
        // check if 'catch' closes a previous 'try' or 'catch'
        else if (newHeader == &AS_CATCH || newHeader == &AS_FINALLY) {
          if (lastTempStack != NULL) {
            int indexOfTry = indexOf(*lastTempStack, &AS_TRY);
            if (indexOfTry == -1)
              indexOfTry = indexOf(*lastTempStack, &AS_CATCH);
            if (indexOfTry != -1) {
              // recreate the header list in headerStack up to the previous 'try'
              // from the temporary snapshot stored in lastTempStack.
              int restackSize = lastTempStack->size() - indexOfTry - 1;
              for (int r = 0; r < restackSize; r++) {
                headerStack->push_back(lastTempStack->back());
                lastTempStack->pop_back();
              }

              if (!closingBracketReached)
                tabCount += restackSize;
            }
          }
        } else if (newHeader == &AS_CASE) {
          isInCase = true;
          if (!haveCaseIndent) {
            haveCaseIndent = true;
            if (!lineBeginsWithBracket)
              --tabCount;
          }
        } else if (newHeader == &AS_DEFAULT) {
          isInCase = true;
          --tabCount;
        } else if (newHeader == &AS_STATIC
                   || newHeader == &AS_SYNCHRONIZED) {
          if (!headerStack->empty() &&
              (headerStack->back() == &AS_STATIC
               || headerStack->back() == &AS_SYNCHRONIZED)) {
            isIndentableHeader = false;
          } else {
            isIndentableHeader = false;
            probationHeader = newHeader;
          }
        } else if (newHeader == &AS_TEMPLATE) {
          isInTemplate = true;
          isIndentableHeader = false;
        }

        if (isIndentableHeader) {
          headerStack->push_back(newHeader);
          isInStatement = false;
          if (indexOf(*nonParenHeaders, newHeader) == -1) {
            isInConditional = true;
          }
          lastLineHeader = newHeader;
        } else
          isInHeader = false;

        i += newHeader->length() - 1;

        continue;
      }  // newHeader != NULL

      if (findHeader(line, i, preCommandHeaders))
        foundPreCommandHeader = true;

      // this applies only to C enums
      if (isCStyle() && findKeyword(line, i, AS_ENUM)) {
        // need in-statement indents in an enum
        isInEnum = true;
        isNonInStatementArray = false;
      }

    }   // isPotentialHeader

    if (ch == '?')
      isInQuestion = true;

    // special handling of colons
    if (ch == ':') {
      if (line.length() > i + 1 && line[i+1] == ':') { // look for ::
        ++i;
        ch = ' ';
        continue;
      }

      else if (isInQuestion) {
        isInQuestion = false;
      }

      else if (isCStyle() && isInClassInitializer) {
        // found a 'class A : public B' definition
        // so do nothing special
      }

      else if (isCStyle()
               && (isInAsm || isInAsmOneLine || isInAsmBlock)) {
        // do nothing special
      }

      else if (isCStyle() && isDigit(peekNextChar(line, i))) {
        // found a bit field
        // so do nothing special
      }

      else if (isCStyle() && isInClass && prevNonSpaceCh != ')') {
        // found a 'private:' or 'public:' inside a class definition
        // Google code style: indent only one space before
        // public, private or protected.
        spaceTabCount += googleClassModifierShift;
        --tabCount;
      }

      else if (isCStyle() && !isInClass
               && headerStack->size() >= 2
               && (*headerStack)[headerStack->size()-2] == &AS_CLASS
               && (*headerStack)[headerStack->size()-1] == &AS_OPEN_BRACKET) {
        // found a 'private:' or 'public:' inside a class definition
        // and on the same line as the class opening bracket
        // do nothing
      }

      else if (isCStyle() && prevNonSpaceCh == ')' && !isInCase) {
        isInClassInitializer = true;
        isInStatement = false;			// so an inStatement indent will register
        if (i == 0)
          tabCount += classInitializerTabs;
      }

      else if (isJavaStyle() && lastLineHeader == &AS_FOR) {
        // found a java for-each statement
        // so do nothing special
      }

      else {
        currentNonSpaceCh = ';'; // so that brackets after the ':' will appear as block-openers
        if (isInCase) {
          isInCase = false;
          ch = ';'; // from here on, treat char as ';'
        } else if (isCStyle() || (isSharpStyle() && peekNextChar(line, i) == ';')) { // is in a label (e.g. 'label1:')
          if (labelIndent)
            --tabCount; // unindent label by one indent
          else if (!lineBeginsWithBracket)
            tabCount = 0; // completely flush indent to left
        }
      }
    }

    if ((ch == ';'  || (parenDepth > 0 && ch == ','))  && !inStatementIndentStackSizeStack->empty())
      while ((int) inStatementIndentStackSizeStack->back() + (parenDepth > 0 ? 1 : 0)
             < (int) inStatementIndentStack->size())
        inStatementIndentStack->pop_back();

    // handle commas
    // previous "isInStatement" will be from an assignment operator or class initializer
    if (ch == ',' && parenDepth == 0 && !isInStatement && !isNonInStatementArray) {
      // is comma at end of line
      size_t nextChar = line.find_first_not_of(" \t", i + 1);
      if (nextChar != string::npos) {
        if (line.compare(nextChar, 2, "//") == 0
            || line.compare(nextChar, 2, "/*") == 0)
          nextChar = string::npos;
      }
      // register indent
      if (nextChar == string::npos) {
        // register indent at first word after the colon of a C++ class initializer
        if (isInClassInitializer) {
          size_t firstChar = line.find_first_not_of(" \t");
          if (firstChar != string::npos && line[firstChar] == ':') {
            size_t firstWord = line.find_first_not_of(" \t", firstChar + 1);
            if (firstChar != string::npos) {
              int inStatementIndent = firstWord + spaceTabCount + tabIncrementIn;
              inStatementIndentStack->push_back(inStatementIndent);
              isInStatement = true;
            }
          }
        }
        // register indent at previous word
        else {
          int prevWord = getInStatementIndentComma(line, i);
          int inStatementIndent = prevWord + spaceTabCount + tabIncrementIn;
          inStatementIndentStack->push_back(inStatementIndent);
          isInStatement = true;
        }
      }
    }

    // handle ends of statements
    if ((ch == ';' && parenDepth == 0) || ch == '}') {
      if (ch == '}') {
        // first check if this '}' closes a previous block, or a static array...
        if (!bracketBlockStateStack->empty()) {
          bool bracketBlockState = bracketBlockStateStack->back();
          bracketBlockStateStack->pop_back();
          if (!bracketBlockState) {
            if (!inStatementIndentStackSizeStack->empty()) {
              // this bracket is a static array

              int previousIndentStackSize = inStatementIndentStackSizeStack->back();
              inStatementIndentStackSizeStack->pop_back();
              while (previousIndentStackSize < (int) inStatementIndentStack->size())
                inStatementIndentStack->pop_back();
              parenDepth--;
              if (i == 0)
                shouldIndentBrackettedLine = false;

              if (!parenIndentStack->empty()) {
                int poppedIndent = parenIndentStack->back();
                parenIndentStack->pop_back();
                if (i == 0)
                  spaceTabCount = poppedIndent;
              }
            }
            continue;
          }
        }

        // this bracket is block closer...

        ++lineClosingBlocksNum;

        if (!inStatementIndentStackSizeStack->empty())
          inStatementIndentStackSizeStack->pop_back();

        if (!blockParenDepthStack->empty()) {
          parenDepth = blockParenDepthStack->back();
          blockParenDepthStack->pop_back();
          isInStatement = blockStatementStack->back();
          blockStatementStack->pop_back();

          if (isInStatement)
            blockTabCount--;
        }

        closingBracketReached = true;
        isInAsmOneLine = false;
        if (i == 0)
          spaceTabCount = 0;

        // added for release 1.24
        // TODO: remove at the appropriate time
        assert(isInAsm == false);
        assert(isInAsmOneLine == false);
        assert(isInQuote == false);
        isInAsm = isInAsmOneLine = isInQuote = false;
        // end remove

        int headerPlace = indexOf(*headerStack, &AS_OPEN_BRACKET);
        if (headerPlace != -1) {
          const string* popped = headerStack->back();
          while (popped != &AS_OPEN_BRACKET) {
            headerStack->pop_back();
            popped = headerStack->back();
          }
          headerStack->pop_back();

          // do not indent namespace bracket unless namespaces are indented
          if (!namespaceIndent && headerStack->size() > 0
              && (*headerStack).back() == &AS_NAMESPACE
              && i == 0)		// must be the first bracket on the line
            shouldIndentBrackettedLine = false;

          if (!tempStacks->empty()) {
            vector<const string*> *temp =  tempStacks->back();
            tempStacks->pop_back();
            delete temp;
          }
        }

        ch = ' '; // needed due to cases such as '}else{', so that headers ('else' tn tih case) will be identified...
      }	// ch == '}'

      /*
       * Create a temporary snapshot of the current block's header-list in the
       * uppermost inner stack in tempStacks, and clear the headerStack up to
       * the begining of the block.
       * Thus, the next future statement will think it comes one indent past
       * the block's '{' unless it specifically checks for a companion-header
       * (such as a previous 'if' for an 'else' header) within the tempStacks,
       * and recreates the temporary snapshot by manipulating the tempStacks.
       */
      if (!tempStacks->back()->empty())
        while (!tempStacks->back()->empty())
          tempStacks->back()->pop_back();
      while (!headerStack->empty() && headerStack->back() != &AS_OPEN_BRACKET) {
        tempStacks->back()->push_back(headerStack->back());
        headerStack->pop_back();
      }

      if (parenDepth == 0 && ch == ';')
        isInStatement = false;

      previousLastLineHeader = NULL;
      isInClassInitializer = false;
      isInEnum = false;
      isInQuestion = false;
      foundPreCommandHeader = false;

      continue;
    }

    if (isPotentialHeader) {
      // check for preBlockStatements in C/C++ ONLY if not within parenthesies
      // (otherwise 'struct XXX' statements would be wrongly interpreted...)
      if (!isInTemplate && !(isCStyle() && parenDepth > 0)) {
        const string* newHeader = findHeader(line, i, preBlockStatements);
        if (newHeader != NULL
            && !(isCStyle() && newHeader == &AS_CLASS && isInEnum)) {	// is it 'enum class'
          isInClassInitializer = true;

          if (!isSharpStyle())
            headerStack->push_back(newHeader);
          // do not need 'where' in the headerStack
          // do not need second 'class' statement in a row
          else if (!(newHeader == &AS_WHERE
                     || (newHeader == &AS_CLASS
                         && headerStack->size() > 0
                         && headerStack->back() == &AS_CLASS)))
            headerStack->push_back(newHeader);

          i += newHeader->length() - 1;
          continue;
        }
      }
      const string* foundIndentableHeader = findHeader(line, i, indentableHeaders);

      if (foundIndentableHeader != NULL) {
        // must bypass the header before registering the in statement
        i += foundIndentableHeader->length() - 1;
        if (!isInOperator && !isInTemplate && !isNonInStatementArray) {
          registerInStatementIndent(line, i, spaceTabCount, tabIncrementIn, 0, false);
          isInStatement = true;
        }
        continue;
      }

      if (isCStyle() && findKeyword(line, i, AS_OPERATOR))
        isInOperator = true;

      // "new" operator is a pointer, not a calculation
      if (findKeyword(line, i, AS_NEW)) {
        if (isInStatement && !inStatementIndentStack->empty()) {
          if (prevNonSpaceCh == '=' && isInStatement && !inStatementIndentStack->empty())
            inStatementIndentStack->back() = 0;
        }
      }

      if (isCStyle()) {
        if (findKeyword(line, i, AS_ASM)
            || findKeyword(line, i, AS__ASM__)) {
          isInAsm = true;
        } else if (findKeyword(line, i, AS_MS_ASM)		// microsoft specific
                   || findKeyword(line, i, AS_MS__ASM)) {
          int index = 4;
          if (peekNextChar(line, i) == '_')		// check for __asm
            index = 5;

          char peekedChar = ASBase::peekNextChar(line, i + index);
          if (peekedChar == '{' || peekedChar == ' ')
            isInAsmBlock = true;
          else
            isInAsmOneLine = true;
        }
      }

      // bypass the entire name for all others
      string name = getCurrentWord(line, i);
      i += name.length() - 1;
      continue;
    }

    // Handle operators

    bool isPotentialOperator = isCharPotentialOperator(ch);

    if (isPotentialOperator) {
      // Check if an operator has been reached.
      const string* foundAssignmentOp = findOperator(line, i, assignmentOperators);
      const string* foundNonAssignmentOp = findOperator(line, i, nonAssignmentOperators);

      // Since findHeader's boundry checking was not used above, it is possible
      // that both an assignment op and a non-assignment op where found,
      // e.g. '>>' and '>>='. If this is the case, treat the LONGER one as the
      // found operator.
      if (foundAssignmentOp != NULL && foundNonAssignmentOp != NULL) {
        if (foundAssignmentOp->length() < foundNonAssignmentOp->length())
          foundAssignmentOp = NULL;
        else
          foundNonAssignmentOp = NULL;
      }

      if (foundNonAssignmentOp != NULL) {
        if (foundNonAssignmentOp->length() > 1)
          i += foundNonAssignmentOp->length() - 1;

        // For C++ input/output, operator<< and >> should be
        // aligned, if we are not in a statement already and
        // also not in the "operator<<(...)" header line
        if (!isInOperator
            && inStatementIndentStack->empty()
            && isCStyle()
            && (foundNonAssignmentOp == &AS_GR_GR ||
                foundNonAssignmentOp == &AS_LS_LS)) {
          // this will be true if the line begins with the operator
          if (i < 2 && spaceTabCount == 0)
            spaceTabCount += 2 * indentLength;
          // align to the beginning column of the operator
          registerInStatementIndent(line, i - foundNonAssignmentOp->length(), spaceTabCount, tabIncrementIn, 0, false);
        }
      }

      else if (foundAssignmentOp != NULL) {
        foundPreCommandHeader = false;		// clears this for array assignments

        if (foundAssignmentOp->length() > 1)
          i += foundAssignmentOp->length() - 1;

        if (!isInOperator && !isInTemplate && !isNonInStatementArray) {
          // if multiple assignments, align on the previous word
          if (foundAssignmentOp == &AS_ASSIGN
              && prevNonSpaceCh != ']'		// an array
              && statementEndsWithComma(line, i)) {
            if (!haveAssignmentThisLine) {	// only one assignment indent per line
              // register indent at previous word
              haveAssignmentThisLine = true;
              int prevWordIndex = getInStatementIndentAssign(line, i);
              int inStatementIndent = prevWordIndex + spaceTabCount +
                                      googleAssignmentShift + tabIncrementIn;
              inStatementIndentStack->push_back(inStatementIndent);
            }
          } else {
            if (i == 0 && spaceTabCount == 0)
              spaceTabCount += indentLength;
            registerInStatementIndent(line, i, spaceTabCount, tabIncrementIn, 0, false);
          }
          isInStatement = true;
        }
      }
    }


  }	// end of for loop * end of for loop * end of for loop * end of for loop * end of for loop *
}


}   // end namespace astyle