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input text with input(), and call token() to get new
tokens.
The public attribute filename can be set to an initial
filename, but the lexer will update it upon #line
directives.
c C s@ || _ || _|| _|| _d| _d| _t�d�| _t�d�| _ dS )ab Create a new Lexer.
error_func:
An error function. Will be called with an error
message, line and column as arguments, in case of
an error during lexing.
on_lbrace_func, on_rbrace_func:
Called when an LBRACE or RBRACE is encountered
(likely to push/pop type_lookup_func's scope)
type_lookup_func:
A type lookup function. Given a string, it must
return True IFF this string is a name of a type
that was defined with a typedef earlier.
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called after the lexer object is created.
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manual warns against calling lex.lex inside
__init__
�objectN)r �lexer)r �kwargsr r r �build: s z CLexer.buildc C s d| j _dS )z? Resets the internal line number counter of the lexer.
� N)r �lineno�r r r r � reset_linenoD s zCLexer.reset_linenoc C s | j �|� d S �N)r �input)r �textr r r r I s z CLexer.inputc C s | j �� | _| jS r )r �tokenr r r r r r L s z CLexer.tokenc C s | j j�dd|j�}|j| S )z3 Find the column of the token in its line.
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r �matchr r! r# �begin�pp_line� pp_filenamer �type�r �tr r r �t_PPHASH s zCLexer.t_PPHASHc C s0 | j d u r| �d|� n|j�d��d�| _d S )Nz$filename before line number in #liner? )rH r) �value�lstrip�rstriprI rK r r r �t_ppline_FILENAME s
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zCLexer.t_ppline_LINE_NUMBERc C sH | j du r| �d|� n t| j �| j_| jdur8| j| _|j�d� dS )�\nNz line number missing in #line�INITIAL)rH r) �intr r rI r
rG rK r r r �t_ppline_NEWLINE/ s
zCLexer.t_ppline_NEWLINEc C s dS )�lineNr rK r r r �t_ppline_PPLINE; s zCLexer.t_ppline_PPLINEz c C s | � d|� d S )Nzinvalid #line directive�r) rK r r r �t_ppline_errorA s zCLexer.t_ppline_errorc C s |j jd7 _|j �d� dS )rS r rT N)r r rG rK r r r �t_pppragma_NEWLINEG s zCLexer.t_pppragma_NEWLINEc C s |S )Zpragmar rK r r r �t_pppragma_PPPRAGMAL s zCLexer.t_pppragma_PPPRAGMAc C s
d|_ |S )z.+r: )rJ rK r r r �t_pppragma_STRR s zCLexer.t_pppragma_STRc C s | � d|� d S )Nzinvalid #pragma directiverY rK r r r �t_pppragma_errorW s zCLexer.t_pppragma_errorc C s |j j|j�d�7 _dS )z\n+r N)r r rN �countrK r r r � t_NEWLINE` s zCLexer.t_NEWLINEz\+�-z\*�/�%z\|�&�~z\^z<<z>>z\|\|z&&�!�<�>z<=z>=z==z!=�=z\*=z/=z%=z\+=z-=z<<=z>>=z&=z\|=z\^=z\+\+z--z->z\?z\(z\)z\[z\]�,z\.�;�:z\.\.\.z\{c C s | � � |S r )r rK r r r �t_LBRACE� s zCLexer.t_LBRACEz\}c C s | � � |S r )r rK r r r �t_RBRACE� s zCLexer.t_RBRACEc C s |S r r rK r r r �
t_FLOAT_CONST� s zCLexer.t_FLOAT_CONSTc C s |S r r rK r r r �t_HEX_FLOAT_CONST� s zCLexer.t_HEX_FLOAT_CONSTc C s |S r r rK r r r �t_INT_CONST_HEX� s zCLexer.t_INT_CONST_HEXc C s |S r r rK r r r �t_INT_CONST_BIN� s zCLexer.t_INT_CONST_BINc C s d}| � ||� d S )NzInvalid octal constantrY �r rL r' r r r �t_BAD_CONST_OCT� s zCLexer.t_BAD_CONST_OCTc C s |S r r rK r r r �t_INT_CONST_OCT� s zCLexer.t_INT_CONST_OCTc C s |S r r rK r r r �t_INT_CONST_DEC� s zCLexer.t_INT_CONST_DECc C s |S r r rK r r r �t_INT_CONST_CHAR� s zCLexer.t_INT_CONST_CHARc C s |S r r rK r r r � t_CHAR_CONST� s zCLexer.t_CHAR_CONSTc C s |S r r rK r r r �
t_WCHAR_CONST� s zCLexer.t_WCHAR_CONSTc C s d}| � ||� d S )Nz Unmatched 'rY rs r r r �t_UNMATCHED_QUOTE� s zCLexer.t_UNMATCHED_QUOTEc C s d|j }| �||� d S )NzInvalid char constant %s)rN r) rs r r r �t_BAD_CHAR_CONST� s
zCLexer.t_BAD_CHAR_CONSTc C s |S r r rK r r r �t_WSTRING_LITERAL� s zCLexer.t_WSTRING_LITERALc C s d}| � ||� d S )Nz#String contains invalid escape coderY rs r r r �t_BAD_STRING_LITERAL� s zCLexer.t_BAD_STRING_LITERALc C s2 | j �|jd�|_|jdkr.| �|j�r.d|_|S )Nr- r. )� keyword_map�getrN rJ r rK r r r �t_ID� s z CLexer.t_IDc C s" dt |jd � }| �||� d S )NzIllegal character %sr )�reprrN r) rs r r r �t_error s zCLexer.t_errorN)��__name__�
__module__� __qualname__�__doc__r r r r r r$ r) r% �keywordsr~ �keyword�lower�tokensZ
identifierZ
hex_prefixZ
hex_digitsZ
bin_prefixZ
bin_digitsZinteger_suffix_optZdecimal_constantZoctal_constantZ hex_constantZ bin_constantZbad_octal_constantZ
simple_escapeZdecimal_escapeZ
hex_escapeZ
bad_escapeZescape_sequenceZ escape_sequence_start_in_stringZ cconst_charZ
char_constZ wchar_constZmulticharacter_constantZunmatched_quoteZbad_char_constZ string_charZstring_literalZwstring_literalZbad_string_literalZ
exponent_partZfractional_constantZfloating_constantZbinary_exponent_partZhex_fractional_constantZhex_floating_constantZstatesrM r rQ rR rV rX Zt_ppline_ignorerZ r[ r\ Zt_pppragma_ignorer] r^ Zt_ignorer` Zt_PLUSZt_MINUSZt_TIMESZt_DIVIDEZt_MODZt_ORZt_ANDZt_NOTZt_XORZt_LSHIFTZt_RSHIFTZt_LORZt_LANDZt_LNOTZt_LTZt_GTZt_LEZt_GEZt_EQZt_NEZt_EQUALSZ t_TIMESEQUALZ
t_DIVEQUALZ
t_MODEQUALZ t_PLUSEQUALZ t_MINUSEQUALZ
t_LSHIFTEQUALZ
t_RSHIFTEQUALZ
t_ANDEQUALZ t_OREQUALZ
t_XOREQUALZ
t_PLUSPLUSZ t_MINUSMINUSZt_ARROWZt_CONDOPZt_LPARENZt_RPARENZ
t_LBRACKETZ
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t_ELLIPSISrm rn Zt_STRING_LITERALro rp rq rr rt ru rv rw rx ry rz r{ r| r} r� r� r r r r r s( !
= $
r )r �sysZplyr Zply.lexr r r r r r r �<module> s