void SyntaxHighlighter::colorize(QString text)
{
Row *currentRow;
TextField *field = NULL;
enum {IDLE,
MULTI_COMMENT,
SPACES,
WORD, GLOBAL_INCLUDE_FILE, COMMENT1,COMMENT,
STRING,
ESCAPED_CHAR,
INC_STRING
} state = IDLE;
char c = '\n';
char prevC = ' ';
char prevPrevC = ' ';
bool isEscaped = false;
reset();
currentRow = new Row;
m_rows.push_back(currentRow);
for(int i = 0;i < text.size();i++)
{
c = text[i].toLatin1();
// Was the last character an escape?
if(prevC == '\\' && prevPrevC != '\\')
isEscaped = true;
else
isEscaped = false;
prevPrevC = prevC;
prevC = c;
switch(state)
{
case IDLE:
{
if(c == '/')
{
state = COMMENT1;
field = new TextField;
field->m_type = TextField::WORD;
field->m_color = Qt::white;
currentRow->appendField(field);
field->m_text = c;
}
else if(c == ' ' || c == '\t')
{
state = SPACES;
field = new TextField;
field->m_type = TextField::SPACES;
field->m_color = Qt::white;
currentRow->appendField(field);
field->m_text = c;
}
else if(c == '\'')
{
state = ESCAPED_CHAR;
field = new TextField;
field->m_type = TextField::STRING;
currentRow->appendField(field);
field->m_text = c;
}
else if(c == '"')
{
state = STRING;
field = new TextField;
if(currentRow->isCppRow)
field->m_type = TextField::INC_STRING;
else
field->m_type = TextField::STRING;
currentRow->appendField(field);
field->m_text = c;
}
else if(c == '<' && currentRow->isCppRow)
{
// Is it a include string?
bool isIncString = false;
TextField *lastField = currentRow->getLastNonSpaceField();
if(lastField)
{
if(lastField->m_text == "include")
isIncString = true;
}
// Add the field
field = new TextField;
field->m_text = c;
if(isIncString)
{
state = INC_STRING;
field->m_type = TextField::INC_STRING;
}
else
{
field->m_type = TextField::WORD;
field->m_color = Qt::white;
}
currentRow->appendField(field);
}
else if(c == '#')
{
// Only spaces before the '#' at the line?
bool onlySpaces = true;
for(int j = 0;onlySpaces == true && j < currentRow->m_fields.size();j++)
{
if(currentRow->m_fields[j]->m_type != TextField::SPACES &&
currentRow->m_fields[j]->m_type != TextField::COMMENT)
{
onlySpaces = false;
}
}
currentRow->isCppRow = onlySpaces ? true : false;
// Create a new field structure
field = new TextField;
if(currentRow->isCppRow)
field->m_type = TextField::CPP_KEYWORD;
else
field->m_type = TextField::WORD;
field->m_color = Qt::white;
currentRow->appendField(field);
field->m_text = c;
}
else if(isSpecialChar(c))
{
field = new TextField;
field->m_type = TextField::WORD;
field->m_color = Qt::white;
currentRow->appendField(field);
field->m_text = c;
}
else if(c == '\n')
{
currentRow = new Row;
m_rows.push_back(currentRow);
state = IDLE;
}
else
{
state = WORD;
field = new TextField;
if(QChar(c).isDigit())
field->m_type = TextField::NUMBER;
else
field->m_type = TextField::WORD;
field->m_color = Qt::white;
currentRow->appendField(field);
field->m_text = c;
}
};break;
case COMMENT1:
{
if(c == '*')
{
field->m_text += c;
field->m_type = TextField::COMMENT;
field->m_color = Qt::green;
state = MULTI_COMMENT;
}
else if(c == '/')
{
field->m_text += c;
field->m_type = TextField::COMMENT;
field->m_color = Qt::green;
state = COMMENT;
}
else
{
i--;
state = IDLE;
}
};break;
case MULTI_COMMENT:
{
if(c == '\n')
{
currentRow = new Row;
m_rows.push_back(currentRow);
field = new TextField;
field->m_type = TextField::COMMENT;
currentRow->appendField(field);
}
else if(text[i-1].toLatin1() == '*' && c == '/')
{
field->m_text += c;
state = IDLE;
}
else
{
field->m_text += c;
}
};break;
case COMMENT:
{
if(c == '\n')
{
i--;
state = IDLE;
}
else
field->m_text += c;
};break;
case SPACES:
{
if(c == ' ' || c == '\t')
{
field->m_text += c;
}
else
{
i--;
field = NULL;
state = IDLE;
}
};break;
case GLOBAL_INCLUDE_FILE:
{
if(!isEscaped && c == '\n')
{
state = IDLE;
}
else
{
field->m_text += c;
if(c == '>')
{
state = IDLE;
}
}
};break;
case ESCAPED_CHAR:
{
field->m_text += c;
if(!isEscaped && c == '\'')
{
field = NULL;
state = IDLE;
}
};break;
case INC_STRING:
{
if(!isEscaped && c == '\n')
{
i--;
field = NULL;
state = IDLE;
}
else
{
field->m_text += c;
if(!isEscaped && c == '>')
{
field = NULL;
state = IDLE;
}
}
};break;
case STRING:
{
field->m_text += c;
if(!isEscaped && c == '"')
{
field = NULL;
state = IDLE;
}
};break;
case WORD:
{
if(isSpecialChar(c) || c == ' ' || c == '\t' || c == '\n')
{
i--;
if(currentRow->isCppRow)
{
if(isCppKeyword(field->m_text))
field->m_type = TextField::CPP_KEYWORD;
}
else
{
if(isKeyword(field->m_text))
field->m_type = TextField::KEYWORD;
}
field = NULL;
state = IDLE;
}
else
{
field->m_text += c;
}
};break;
}
}
for(int r = 0;r < m_rows.size();r++)
{
Row *currentRow = m_rows[r];
for(int j = 0;j < currentRow->m_fields.size();j++)
{
TextField* currentField = currentRow->m_fields[j];
pickColor(currentField);
}
}
}
