#include <CharScanner.hpp>
Classes | |
class | Tracer |
Public Member Functions | |
CharScanner (InputBuffer &cb, bool case_sensitive) | |
CharScanner (InputBuffer *cb, bool case_sensitive) | |
CharScanner (const LexerSharedInputState &state, bool case_sensitive) | |
virtual | ~CharScanner () |
virtual int | LA (unsigned int i) |
virtual void | append (char c) |
virtual void | append (const std::string &s) |
virtual void | commit () |
virtual void | recover (const RecognitionException &ex, const BitSet &tokenSet) |
virtual void | consume () |
virtual void | consumeUntil (int c) |
virtual void | consumeUntil (const BitSet &set) |
virtual unsigned int | mark () |
Mark the current position and return a id for it. | |
virtual void | rewind (unsigned int pos) |
Rewind the scanner to a previously marked position. | |
virtual void | match (int c) |
See if input contains character 'c' throw MismatchedCharException if not. | |
virtual void | match (const BitSet &b) |
virtual void | match (const char *s) |
virtual void | match (const std::string &s) |
virtual void | matchNot (int c) |
virtual void | matchRange (int c1, int c2) |
virtual bool | getCaseSensitive () const |
virtual void | setCaseSensitive (bool t) |
virtual bool | getCaseSensitiveLiterals () const =0 |
virtual int | getLine () const |
Get the line the scanner currently is in (starts at 1). | |
virtual void | setLine (int l) |
set the line number | |
virtual int | getColumn () const |
Get the column the scanner currently is in (starts at 1). | |
virtual void | setColumn (int c) |
set the column number | |
virtual const std::string & | getFilename () const |
get the filename for the file currently used | |
virtual void | setFilename (const std::string &f) |
Set the filename the scanner is using (used in error messages). | |
virtual bool | getCommitToPath () const |
virtual void | setCommitToPath (bool commit) |
virtual const std::string & | getText () const |
virtual void | setText (const std::string &s) |
virtual void | resetText () |
virtual RefToken | getTokenObject () const |
virtual void | newline () |
virtual void | tab () |
int | setTabsize (int size) |
set the tabsize. Returns the old tabsize | |
int | getTabSize () const |
Return the tabsize used by the scanner. | |
virtual void | reportError (const RecognitionException &e) |
virtual void | reportError (const std::string &s) |
virtual void | reportWarning (const std::string &s) |
virtual InputBuffer & | getInputBuffer () |
virtual LexerSharedInputState | getInputState () |
virtual void | setInputState (LexerSharedInputState state) |
virtual void | setTokenObjectFactory (factory_type factory) |
Set the factory for created tokens. | |
virtual int | testLiteralsTable (int ttype) const |
virtual int | testLiteralsTable (const std::string &txt, int ttype) const |
virtual int | toLower (int c) const |
Override this method to get more specific case handling. | |
virtual void | uponEOF () |
virtual void | traceIndent () |
Methods used to change tracing behavior. | |
virtual void | traceIn (const char *rname) |
virtual void | traceOut (const char *rname) |
Static Public Attributes | |
static const int | EOF_CHAR = EOF |
Protected Types | |
typedef RefToken(* | factory_type )() |
Protected Member Functions | |
virtual RefToken | makeToken (int t) |
Create a new RefToken of type t. | |
Protected Attributes | |
std::string | text |
bool | saveConsumedInput |
flag indicating wether consume saves characters | |
factory_type | tokenFactory |
Factory for tokens. | |
bool | caseSensitive |
Is this lexer case sensitive. | |
std::map< std::string, int, CharScannerLiteralsLess > | literals |
RefToken | _returnToken |
used to return tokens w/o using return val | |
LexerSharedInputState | inputState |
Input state, gives access to input stream, shared among different lexers. | |
bool | commitToPath |
int | tabsize |
tab size the scanner uses. | |
int | traceDepth |
Private Member Functions | |
CharScanner (const CharScanner &other) | |
CharScanner & | operator= (const CharScanner &other) |
Static Private Attributes | |
static const int | NO_CHAR = 0 |
Superclass of generated lexers
typedef RefToken(* CharScanner::factory_type)() [protected] |
CharScanner::CharScanner | ( | InputBuffer & | cb, | |
bool | case_sensitive | |||
) |
CharScanner::CharScanner | ( | InputBuffer * | cb, | |
bool | case_sensitive | |||
) |
CharScanner::CharScanner | ( | const LexerSharedInputState & | state, | |
bool | case_sensitive | |||
) |
virtual CharScanner::~CharScanner | ( | ) | [inline, virtual] |
CharScanner::CharScanner | ( | const CharScanner & | other | ) | [private] |
virtual void CharScanner::append | ( | const std::string & | s | ) | [inline, virtual] |
virtual void CharScanner::append | ( | char | c | ) | [inline, virtual] |
virtual void CharScanner::commit | ( | ) | [inline, virtual] |
virtual void CharScanner::consume | ( | ) | [inline, virtual] |
virtual void CharScanner::consumeUntil | ( | const BitSet & | set | ) | [inline, virtual] |
Consume chars until one matches the given set
virtual void CharScanner::consumeUntil | ( | int | c | ) | [inline, virtual] |
Consume chars until one matches the given char
virtual bool CharScanner::getCaseSensitive | ( | ) | const [inline, virtual] |
virtual bool CharScanner::getCaseSensitiveLiterals | ( | ) | const [pure virtual] |
virtual int CharScanner::getColumn | ( | ) | const [inline, virtual] |
Get the column the scanner currently is in (starts at 1).
virtual bool CharScanner::getCommitToPath | ( | ) | const [inline, virtual] |
virtual const std ::string& CharScanner::getFilename | ( | ) | const [inline, virtual] |
get the filename for the file currently used
virtual InputBuffer& CharScanner::getInputBuffer | ( | ) | [inline, virtual] |
virtual LexerSharedInputState CharScanner::getInputState | ( | ) | [inline, virtual] |
virtual int CharScanner::getLine | ( | ) | const [inline, virtual] |
Get the line the scanner currently is in (starts at 1).
int CharScanner::getTabSize | ( | ) | const [inline] |
Return the tabsize used by the scanner.
virtual const std ::string& CharScanner::getText | ( | ) | const [inline, virtual] |
return a copy of the current text buffer
virtual RefToken CharScanner::getTokenObject | ( | ) | const [inline, virtual] |
int CharScanner::LA | ( | unsigned int | i | ) | [inline, virtual] |
virtual RefToken CharScanner::makeToken | ( | int | t | ) | [inline, protected, virtual] |
Create a new RefToken of type t.
virtual unsigned int CharScanner::mark | ( | ) | [inline, virtual] |
Mark the current position and return a id for it.
virtual void CharScanner::match | ( | const std::string & | s | ) | [inline, virtual] |
See if input contains string 's' throw MismatchedCharException if not
virtual void CharScanner::match | ( | const char * | s | ) | [inline, virtual] |
See if input contains string 's' throw MismatchedCharException if not
virtual void CharScanner::match | ( | const BitSet & | b | ) | [inline, virtual] |
See if input contains element from bitset b throw MismatchedCharException if not
virtual void CharScanner::match | ( | int | c | ) | [inline, virtual] |
See if input contains character 'c' throw MismatchedCharException if not.
virtual void CharScanner::matchNot | ( | int | c | ) | [inline, virtual] |
See if input does not contain character 'c' throw MismatchedCharException if not
virtual void CharScanner::matchRange | ( | int | c1, | |
int | c2 | |||
) | [inline, virtual] |
See if input contains character in range c1-c2 throw MismatchedCharException if not
virtual void CharScanner::newline | ( | ) | [inline, virtual] |
Used to keep track of line breaks, needs to be called from within generated lexers when a
is encountered.
CharScanner& CharScanner::operator= | ( | const CharScanner & | other | ) | [private] |
virtual void CharScanner::recover | ( | const RecognitionException & | ex, | |
const BitSet & | tokenSet | |||
) | [inline, virtual] |
called by the generated lexer to do error recovery, override to customize the behaviour.
void CharScanner::reportError | ( | const std::string & | s | ) | [virtual] |
Parser error-reporting function can be overridden in subclass
void CharScanner::reportError | ( | const RecognitionException & | ex | ) | [virtual] |
Report exception errors caught in nextToken()
void CharScanner::reportWarning | ( | const std::string & | s | ) | [virtual] |
Parser warning-reporting function can be overridden in subclass
virtual void CharScanner::resetText | ( | ) | [inline, virtual] |
virtual void CharScanner::rewind | ( | unsigned int | pos | ) | [inline, virtual] |
Rewind the scanner to a previously marked position.
virtual void CharScanner::setCaseSensitive | ( | bool | t | ) | [inline, virtual] |
virtual void CharScanner::setColumn | ( | int | c | ) | [inline, virtual] |
set the column number
virtual void CharScanner::setCommitToPath | ( | bool | commit | ) | [inline, virtual] |
virtual void CharScanner::setFilename | ( | const std::string & | f | ) | [inline, virtual] |
Set the filename the scanner is using (used in error messages).
virtual void CharScanner::setInputState | ( | LexerSharedInputState | state | ) | [inline, virtual] |
set the input state for the lexer.
virtual void CharScanner::setLine | ( | int | l | ) | [inline, virtual] |
set the line number
int CharScanner::setTabsize | ( | int | size | ) | [inline] |
set the tabsize. Returns the old tabsize
virtual void CharScanner::setText | ( | const std::string & | s | ) | [inline, virtual] |
virtual void CharScanner::setTokenObjectFactory | ( | factory_type | factory | ) | [inline, virtual] |
Set the factory for created tokens.
virtual void CharScanner::tab | ( | ) | [inline, virtual] |
Advance the current column number by an appropriate amount according to the tabsize. This method needs to be explicitly called from the lexer rules encountering tabs.
virtual int CharScanner::testLiteralsTable | ( | const std::string & | txt, | |
int | ttype | |||
) | const [inline, virtual] |
Test the text passed in against the literals table Override this method to perform a different literals test This is used primarily when you want to test a portion of a token
virtual int CharScanner::testLiteralsTable | ( | int | ttype | ) | const [inline, virtual] |
Test the token text against the literals table Override this method to perform a different literals test
virtual int CharScanner::toLower | ( | int | c | ) | const [inline, virtual] |
Override this method to get more specific case handling.
void CharScanner::traceIn | ( | const char * | rname | ) | [virtual] |
void CharScanner::traceIndent | ( | ) | [virtual] |
Methods used to change tracing behavior.
void CharScanner::traceOut | ( | const char * | rname | ) | [virtual] |
virtual void CharScanner::uponEOF | ( | ) | [inline, virtual] |
This method is called by YourLexer::nextToken() when the lexer has hit EOF condition. EOF is NOT a character. This method is not called if EOF is reached during syntactic predicate evaluation or during evaluation of normal lexical rules, which presumably would be an IOException. This traps the "normal" EOF condition.
uponEOF() is called after the complete evaluation of the previous token and only if your parser asks for another token beyond that last non-EOF token.
You might want to throw token or char stream exceptions like: "Heh, premature eof" or a retry stream exception ("I found the end of this file, go back to referencing file").
RefToken CharScanner::_returnToken [protected] |
used to return tokens w/o using return val
bool CharScanner::caseSensitive [protected] |
Is this lexer case sensitive.
bool CharScanner::commitToPath [protected] |
Used during filter mode to indicate that path is desired. A subsequent scan error will report an error as usual if acceptPath=true;
const int CharScanner::EOF_CHAR = EOF [static] |
LexerSharedInputState CharScanner::inputState [protected] |
Input state, gives access to input stream, shared among different lexers.
std ::map< std ::string,int,CharScannerLiteralsLess> CharScanner::literals [protected] |
const int CharScanner::NO_CHAR = 0 [static, private] |
bool CharScanner::saveConsumedInput [protected] |
flag indicating wether consume saves characters
int CharScanner::tabsize [protected] |
tab size the scanner uses.
std ::string CharScanner::text [protected] |
Text of current token
factory_type CharScanner::tokenFactory [protected] |
Factory for tokens.
int CharScanner::traceDepth [protected] |