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◆  Alloc()

参数

[in]

allocLocation

Source location.

◆  Init()

Initializes the lexer class. This functions opens the stream.

参数

[in]	fileName	Url or Input Stream.
[in]	flags	Control flags for the lexer. See LEXERINITFLAGS for description.
[in]	stringEscapeCharacters	Defines characters that allow to escape " ' and the escape character itself within strings. By Default this is '\'.
[in]	stringDecoding	String encoding for this file. If a nullptr is passed (recommended) then StreamConversions::UtfTextDecoder will be used to auto-detect the file encoding.

返回

OK on success.

◆  AddOperator()

Adds an operator symbol to the lexer. This is a symbol which consists of several non-letter characters such as && or +=. The lexer will then return such a character sequence as a single symbol of type LEXERSYMBOL::OPERATOR .

参数

[in]

chars

The symbol to add.

◆  Close()

Closes the stream.

◆  ReadNextChar()

Reads the next character out of the stream.

返回

Returns the character that has been read. This function returns 0 if the end of the file has been reached.

◆  SkipSpaces()

Skips the spaces from the current position.

返回

True if the function was successful. False if the end of the file has been reached.

◆  SkipLineToEnd()

Skips line to the end. If the lexer is in NEED_EOL mode the method stops at line end. Otherwise it will advance to the next line and stops when non-whitespace is found.

参数

[in]

collectSkipped

If true then the skipped bytes are returned with the next GetIdent() call.

返回

True if the function was successful. False if the end of the file has been reached. Otherwise an error.

◆  ReadNextSymbol()

Reads the next symbol in the stream. GetIdent() returns the name of the symbol/ident/number/operator.

参数

[in]

flags

See LEXERSYMBOLFLAGS for details.

返回

Next detected symbol. LEXERSYMBOL::ENDOFFILE if the end of file has been reached.

◆  ReadNextSymbolExpected()

Reads the next symbol in the stream and checks if it's identical to requiredSymbols. GetIdent() returns the name of the symbol/ident/number/operator.

参数

[in]	expectedSymbols	Symbol that is required.
[in]	flags	See LEXERSYMBOLFLAGS for details.

返回

Next detected symbol. LEXERSYMBOL::ENDOFFILE if the end of file has been reached.

◆  RewindSymbol()

Rewinds the current symbol so that the next ReadNextSymbol returns exactly the same as before.

◆  GetSymbol()

Returns the current symbol.

◆  GetLeadingSpace()

Returns the number of leading spaces of the symbol. Tabs count as up to 8 spaces.

◆  GetIdent()

Returns the current String ident.

◆  GetFloat() [1/2]

In case of LEXERSYMBOL::NUMBER this function returns the floating point value of this number.

参数

[out]

val

Reference to the value.

◆  GetFloat() [2/2]

In case of LEXERSYMBOL::NUMBER this function returns the floating point value of this number.

参数

[in]

val

Reference to the value.

◆  GetInt() [1/2]

In case of LEXERSYMBOL::NUMBER this function returns the integer value of this number.

参数

[in]

val

Reference to the value.

◆  GetInt() [2/2]

In case of LEXERSYMBOL::NUMBER this function returns the integer value of this number.

参数

[in]

val

Reference to the value.

◆  GetUInt() [1/2]

In case of LEXERSYMBOL::NUMBER this function returns the integer value of this number.

参数

[in]

val

Reference to the value.

◆  GetUInt() [2/2]

In case of LEXERSYMBOL::NUMBER this function returns the integer value of this number.

参数

[in]

val

Reference to the value.

◆  GetCurrentReadPosition()

Returns the current reading position.

◆  GetSymbolPosition()

Returns the position of the current symbol.

返回

The position of the current symbol.

◆  CheckIdent() [1/2]

Checks against the current identifier.

参数

[in]

cmp

C-style string to compare with.

返回

Returns true if identical.

◆  CheckIdent() [2/2]

Checks against the current identifier.

参数

[in]

cmp

String to compare with.

返回

Returns true if identical.

◆  GetLine()

Returns the current line number within the file.

• maxon
• LexerInterface