GNU Octave  4.0.0
A high-level interpreted language, primarily intended for numerical computations, mostly compatible with Matlab
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octave_base_lexer Class Referenceabstract

#include "lex.h"

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Classes

class  comment_buffer
 
class  input_buffer
 

Public Member Functions

 octave_base_lexer (void)
 
virtual ~octave_base_lexer (void)
 
bool at_end_of_buffer (void) const
 
bool at_end_of_file (void) const
 
void begin_string (int state)
 
void clear_start_state (void)
 
int count_token (int tok)
 
int count_token_internal (int tok)
 
token * current_token (void)
 
virtual void decrement_promptflag (void)=0
 
void display_start_state (void) const
 
void display_token (int tok)
 
void enable_fq_identifier (void)
 
void fatal_error (const char *msg)
 
virtual int fill_flex_buffer (char *buf, unsigned int max_size)=0
 
void finish_comment (octave_comment_elt::comment_type typ)
 
int flex_yyleng (void)
 
char * flex_yytext (void)
 
bool fq_identifier_contains_keyword (const std::string &s)
 
octave_comment_list * get_comment (void)
 
void gripe_language_extension (const std::string &msg)
 
void gripe_language_extension_continuation (void)
 
void gripe_language_extension_operator (const std::string &op)
 
void gripe_single_quote_string (void)
 
int handle_assign_op (const char *pattern, int tok)
 
int handle_close_bracket (int bracket_type)
 
void handle_continuation (void)
 
int handle_end_of_input (void)
 
int handle_fq_identifier (void)
 
int handle_identifier (void)
 
int handle_language_extension_assign_op (const char *pattern, int tok)
 
int handle_language_extension_op (const char *pattern, int tok, bool bos=false)
 
int handle_language_extension_unary_op (int tok, bool bos=false)
 
int handle_meta_identifier (void)
 
void handle_number (void)
 
int handle_op (const char *pattern, int tok, bool bos=false)
 
int handle_op_internal (int tok, bool bos, bool compat)
 
int handle_superclass_identifier (void)
 
int handle_token (const std::string &name, int tok)
 
int handle_token (int tok, token *tok_val=0)
 
int handle_unary_op (int tok, bool bos=false)
 
virtual void increment_promptflag (void)=0
 
void init (void)
 
virtual bool input_from_eval_string (void) const
 
virtual bool input_from_file (void) const
 
virtual bool input_from_terminal (void) const
 
virtual std::string input_source (void) const
 
bool inside_any_object_index (void)
 
int is_keyword_token (const std::string &s)
 
virtual bool is_push_lexer (void) const
 
bool is_variable (const std::string &name)
 
void lexer_debug (const char *pattern)
 
bool looking_at_space (void)
 
bool looks_like_command_arg (void)
 
void mark_as_variable (const std::string &nm)
 
void mark_as_variables (const std::list< std::string > &lst)
 
void mark_previous_token_trailing_space (void)
 
void maybe_gripe_language_extension_comment (char c)
 
void maybe_mark_previous_token_as_variable (void)
 
bool maybe_unput_comma_before_unary_op (int tok)
 
void maybe_warn_separator_insert (char sep)
 
void pop_start_state (void)
 
void prep_for_file (void)
 
bool previous_token_is_binop (void) const
 
bool previous_token_is_keyword (void) const
 
bool previous_token_may_be_command (void) const
 
int previous_token_value (void) const
 
bool previous_token_value_is (int tok_val) const
 
virtual int promptflag (void) const =0
 
virtual int promptflag (int)=0
 
void push_start_state (int state)
 
void push_token (token *)
 
virtual void reset (void)
 
int show_token (int tok)
 
bool space_follows_previous_token (void) const
 
int start_state (void) const
 
int text_yyinput (void)
 
bool whitespace_is_significant (void)
 
void xunput (char c, char *buf)
 
void xunput (char c)
 

Public Attributes

bool at_beginning_of_statement
 
int block_comment_nesting_level
 
int braceflag
 
int bracketflag
 
int command_arg_paren_count
 
comment_buffer comment_buf
 
std::string comment_text
 
int current_input_column
 
std::string current_input_line
 
int defining_func
 
bool end_of_input
 
std::string fcn_file_full_name
 
std::string fcn_file_name
 
bool force_script
 
std::string help_text
 
input_buffer input_buf
 
int input_line_number
 
bool looking_at_anon_fcn_args
 
bool looking_at_decl_list
 
int looking_at_function_handle
 
bool looking_at_indirect_ref
 
bool looking_at_initializer_expression
 
bool looking_at_matrix_or_assign_lhs
 
std::list< bool > looking_at_object_index
 
bool looking_at_parameter_list
 
bool looking_at_return_list
 
bool looking_for_object_index
 
int looping
 
bool maybe_classdef_get_set_method
 
bbp_nesting_level nesting_level
 
std::stack< bool > parsed_function_name
 
bool parsing_class_method
 
bool parsing_classdef
 
bool parsing_classdef_get_method
 
bool parsing_classdef_set_method
 
std::set< std::string > pending_local_variables
 
bool quote_is_transpose
 
bool reading_classdef_file
 
bool reading_fcn_file
 
bool reading_script_file
 
void * scanner
 
int string_column
 
int string_line
 
std::string string_text
 
symbol_table_context symtab_context
 
size_t token_count
 
token_cache tokens
 

Protected Member Functions

 octave_base_lexer (const octave_base_lexer &)
 
octave_base_lexer & operator= (const octave_base_lexer &)
 

Protected Attributes

std::stack< int > start_state_stack
 

Detailed Description

Definition at line 465 of file lex.h.

Constructor & Destructor Documentation

octave_base_lexer::octave_base_lexer ( void  )
inline

Definition at line 539 of file lex.h.

octave_base_lexer::~octave_base_lexer ( void  )
virtual

Definition at line 4836 of file lex.cc.

References octave_lex_destroy(), and scanner.

octave_base_lexer::octave_base_lexer ( const octave_base_lexer &  )
protected

Member Function Documentation

bool octave_base_lexer::at_end_of_buffer ( void  ) const
inline

Definition at line 559 of file lex.h.

Referenced by octave_push_parser::run().

bool octave_base_lexer::at_end_of_file ( void  ) const
inline

Definition at line 561 of file lex.h.

void octave_base_lexer::begin_string ( int  state)

Definition at line 4898 of file lex.cc.

References lexical_feedback::current_input_column, lexical_feedback::input_line_number, push_start_state(), lexical_feedback::string_column, and lexical_feedback::string_line.

void octave_base_lexer::clear_start_state ( void  )

Definition at line 5893 of file lex.cc.

References INITIAL, push_start_state(), and start_state_stack.

Referenced by init(), and reset().

int octave_base_lexer::count_token ( int  tok)

Definition at line 6038 of file lex.cc.

References count_token_internal(), lexical_feedback::current_input_column, lexical_feedback::input_line_number, and push_token().

int octave_base_lexer::count_token_internal ( int  tok)

Definition at line 6048 of file lex.cc.

References show_token(), lexical_feedback::token_count, and Vtoken_count.

Referenced by count_token(), handle_op_internal(), and handle_token().

token * octave_base_lexer::current_token ( void  )

Definition at line 5706 of file lex.cc.

References octave_get_lval(), scanner, and YYSTYPE.

Referenced by display_token().

virtual void octave_base_lexer::decrement_promptflag ( void  )
pure virtual

Implemented in octave_push_lexer, and octave_lexer.

Referenced by handle_continuation(), and is_keyword_token().

void octave_base_lexer::display_start_state ( void  ) const

Definition at line 5902 of file lex.cc.

References BLOCK_COMMENT_START, COMMAND_START, DQ_STRING_START, INITIAL, INPUT_FILE_START, LINE_COMMENT_START, MATRIX_START, SQ_STRING_START, and start_state().

Referenced by lexer_debug().

void octave_base_lexer::display_token ( int  tok)

Definition at line 5713 of file lex.cc.

References ADD_EQ, AND_EQ, BREAK, CASE, CATCH, CLASSDEF, CLEANUP, CONTINUE, current_token(), DIV_EQ, DO, DQ_STRING, EDIV, EDIV_EQ, ELEFTDIV, ELEFTDIV_EQ, ELSE, ELSEIF, EMINUS, EMUL, EMUL_EQ, END, END_OF_INPUT, EPLUS, EPOW, EPOW_EQ, EVENTS, EXPR_AND, EXPR_AND_AND, EXPR_EQ, EXPR_GE, EXPR_GT, EXPR_LE, EXPR_LT, EXPR_NE, EXPR_NOT, EXPR_OR, EXPR_OR_OR, FCN, FCN_HANDLE, FOR, FUNC_RET, GET, GLOBAL, HERMITIAN, IF, IMAG_NUM, INPUT_FILE, LEFTDIV, LEFTDIV_EQ, LEXICAL_ERROR, LSHIFT, LSHIFT_EQ, METAQUERY, METHODS, MINUS_MINUS, MUL_EQ, NAME, symbol_table::symbol_record::name(), NUM, token::number(), OR_EQ, OTHERWISE, PERSISTENT, PLUS_PLUS, POW, POW_EQ, PROPERTIES, RSHIFT, RSHIFT_EQ, SET, SQ_STRING, STRUCT_ELT, SUB_EQ, SUPERCLASSREF, SWITCH, token::sym_rec(), token::text(), TRANSPOSE, TRY, UNTIL, UNWIND, and WHILE.

Referenced by show_token().

void octave_base_lexer::enable_fq_identifier ( void  )

Definition at line 6076 of file lex.cc.

References FQ_IDENT_START, and push_start_state().

void octave_base_lexer::fatal_error ( const char *  msg)

Definition at line 5849 of file lex.cc.

References error(), OCTAVE_QUIT, scanner, and yy_fatal_error().

virtual int octave_base_lexer::fill_flex_buffer ( char *  buf,
unsigned int  max_size 
)
pure virtual

Implemented in octave_push_lexer, and octave_lexer.

void octave_base_lexer::finish_comment ( octave_comment_elt::comment_type  typ)

Definition at line 5407 of file lex.cc.

References octave_base_lexer::comment_buffer::append(), lexical_feedback::at_beginning_of_statement, comment_buf, lexical_feedback::comment_text, octave_comment_elt::copyright, lexical_feedback::help_text, looks_like_copyright(), lexical_feedback::nesting_level, and lexical_feedback::bbp_nesting_level::none().

Referenced by handle_continuation().

int octave_base_lexer::flex_yyleng ( void  )

Definition at line 4931 of file lex.cc.

References octave_get_leng(), and scanner.

Referenced by handle_continuation(), handle_fq_identifier(), handle_identifier(), handle_meta_identifier(), handle_number(), handle_op_internal(), handle_superclass_identifier(), and handle_token().

char * octave_base_lexer::flex_yytext ( void  )

Definition at line 4925 of file lex.cc.

References octave_get_text(), and scanner.

Referenced by handle_continuation(), handle_fq_identifier(), handle_identifier(), handle_meta_identifier(), handle_number(), handle_op_internal(), handle_superclass_identifier(), lexer_debug(), and xunput().

bool octave_base_lexer::fq_identifier_contains_keyword ( const std::string &  s)

Definition at line 5261 of file lex.cc.

References is_keyword_token().

Referenced by handle_fq_identifier(), handle_meta_identifier(), and handle_superclass_identifier().

octave_comment_list* octave_base_lexer::get_comment ( void  )
inline

Definition at line 593 of file lex.h.

Referenced by octave_base_parser::make_statement().

void octave_base_lexer::gripe_language_extension ( const std::string &  msg)

Definition at line 5660 of file lex.cc.

References lexical_feedback::fcn_file_full_name, lexical_feedback::input_line_number, and warning_with_id().

Referenced by gripe_language_extension_continuation(), gripe_language_extension_operator(), and maybe_gripe_language_extension_comment().

void octave_base_lexer::gripe_language_extension_continuation ( void  )

Definition at line 5682 of file lex.cc.

References gripe_language_extension().

Referenced by handle_continuation().

void octave_base_lexer::gripe_language_extension_operator ( const std::string &  op)

Definition at line 5688 of file lex.cc.

References gripe_language_extension().

Referenced by handle_op_internal().

void octave_base_lexer::gripe_single_quote_string ( void  )

Definition at line 5645 of file lex.cc.

References lexical_feedback::fcn_file_full_name, lexical_feedback::input_line_number, and warning_with_id().

int octave_base_lexer::handle_assign_op ( const char *  pattern,
int  tok 
)
int octave_base_lexer::handle_close_bracket ( int  bracket_type)

Definition at line 5426 of file lex.cc.

References lexical_feedback::braceflag, lexical_feedback::bracketflag, lexical_feedback::nesting_level, lexical_feedback::bbp_nesting_level::none(), panic_impossible, pop_start_state(), and lexical_feedback::bbp_nesting_level::remove().

void octave_base_lexer::handle_continuation ( void  )

Definition at line 5346 of file lex.cc.

References lexical_feedback::at_beginning_of_statement, lexical_feedback::comment_text, lexical_feedback::current_input_column, decrement_promptflag(), octave_comment_elt::end_of_line, finish_comment(), flex_yyleng(), flex_yytext(), gripe_language_extension_continuation(), lexical_feedback::input_line_number, and lexical_feedback::mark_previous_token_trailing_space().

int octave_base_lexer::handle_end_of_input ( void  )

Definition at line 4907 of file lex.cc.

References lexical_feedback::block_comment_nesting_level, END_OF_INPUT, lexical_feedback::fcn_file_name, handle_token(), lexical_feedback::input_line_number, lexer_debug(), lexical_feedback::reading_classdef_file, lexical_feedback::reading_fcn_file, lexical_feedback::reading_script_file, and warning().

int octave_base_lexer::handle_fq_identifier ( void  )

Definition at line 5503 of file lex.cc.

References lexical_feedback::current_input_column, error(), flex_yyleng(), flex_yytext(), FQ_IDENT, fq_identifier_contains_keyword(), lexical_feedback::input_line_number, LEXICAL_ERROR, and push_token().

int octave_base_lexer::handle_identifier ( void  )

Definition at line 5526 of file lex.cc.

References lexical_feedback::at_beginning_of_statement, lexical_feedback::symbol_table_context::curr_scope(), lexical_feedback::current_input_column, error(), FCN_HANDLE, flex_yyleng(), flex_yytext(), lexical_feedback::input_line_number, symbol_table::insert(), is_keyword_token(), is_variable(), LEXICAL_ERROR, lexical_feedback::looking_at_function_handle, lexical_feedback::looking_at_indirect_ref, lexical_feedback::looking_for_object_index, token::mark_may_be_command(), NAME, push_token(), STRUCT_ELT, and lexical_feedback::symtab_context.

int octave_base_lexer::handle_language_extension_assign_op ( const char *  pattern,
int  tok 
)
int octave_base_lexer::handle_language_extension_op ( const char *  pattern,
int  tok,
bool  bos = false 
)

Definition at line 5955 of file lex.cc.

References handle_op_internal(), and lexer_debug().

int octave_base_lexer::handle_language_extension_unary_op ( int  tok,
bool  bos = false 
)

Definition at line 5994 of file lex.cc.

References handle_op_internal(), and maybe_unput_comma_before_unary_op().

int octave_base_lexer::handle_meta_identifier ( void  )

Definition at line 5484 of file lex.cc.

References lexical_feedback::current_input_column, error(), flex_yyleng(), flex_yytext(), fq_identifier_contains_keyword(), lexical_feedback::input_line_number, LEXICAL_ERROR, METAQUERY, and push_token().

void octave_base_lexer::handle_number ( void  )

Definition at line 5303 of file lex.cc.

References lexical_feedback::at_beginning_of_statement, lexical_feedback::current_input_column, flex_yyleng(), flex_yytext(), lexical_feedback::input_line_number, lexical_feedback::looking_for_object_index, looks_like_hex(), NUM, push_token(), and strsave().

int octave_base_lexer::handle_op ( const char *  pattern,
int  tok,
bool  bos = false 
)

Definition at line 5947 of file lex.cc.

References handle_op_internal(), and lexer_debug().

int octave_base_lexer::handle_op_internal ( int  tok,
bool  bos,
bool  compat 
)

Definition at line 6001 of file lex.cc.

References lexical_feedback::at_beginning_of_statement, count_token_internal(), lexical_feedback::current_input_column, flex_yyleng(), flex_yytext(), gripe_language_extension_operator(), lexical_feedback::input_line_number, lexical_feedback::looking_for_object_index, and push_token().

Referenced by handle_language_extension_op(), handle_language_extension_unary_op(), handle_op(), and handle_unary_op().

int octave_base_lexer::handle_superclass_identifier ( void  )

Definition at line 5458 of file lex.cc.

References lexical_feedback::current_input_column, error(), flex_yyleng(), flex_yytext(), fq_identifier_contains_keyword(), lexical_feedback::input_line_number, is_keyword_token(), LEXICAL_ERROR, push_token(), and SUPERCLASSREF.

int octave_base_lexer::handle_token ( const std::string &  name,
int  tok 
)

Definition at line 6016 of file lex.cc.

References lexical_feedback::current_input_column, and lexical_feedback::input_line_number.

Referenced by handle_end_of_input().

int octave_base_lexer::handle_token ( int  tok,
token *  tok_val = 0 
)

Definition at line 6025 of file lex.cc.

References count_token_internal(), lexical_feedback::current_input_column, flex_yyleng(), lexical_feedback::input_line_number, and push_token().

int octave_base_lexer::handle_unary_op ( int  tok,
bool  bos = false 
)

Definition at line 5987 of file lex.cc.

References handle_op_internal(), and maybe_unput_comma_before_unary_op().

virtual void octave_base_lexer::increment_promptflag ( void  )
pure virtual

Implemented in octave_push_lexer, and octave_lexer.

void octave_base_lexer::init ( void  )

Definition at line 4842 of file lex.cc.

References clear_start_state(), octave_lex_init(), octave_set_extra(), and scanner.

virtual bool octave_base_lexer::input_from_eval_string ( void  ) const
inlinevirtual

Reimplemented in octave_lexer.

Definition at line 652 of file lex.h.

Referenced by reset().

virtual bool octave_base_lexer::input_from_file ( void  ) const
inlinevirtual

Reimplemented in octave_lexer.

Definition at line 650 of file lex.h.

Referenced by is_keyword_token().

virtual bool octave_base_lexer::input_from_terminal ( void  ) const
inlinevirtual

Reimplemented in octave_lexer.

Definition at line 648 of file lex.h.

virtual std::string octave_base_lexer::input_source ( void  ) const
inlinevirtual

Reimplemented in octave_push_lexer, and octave_lexer.

Definition at line 646 of file lex.h.

bool octave_base_lexer::inside_any_object_index ( void  )

Definition at line 5004 of file lex.cc.

References lexical_feedback::looking_at_object_index.

Referenced by is_keyword_token().

int octave_base_lexer::is_keyword_token ( const std::string &  s)

Definition at line 5032 of file lex.cc.

References lexical_feedback::at_beginning_of_statement, break_kw, case_kw, catch_kw, token::classdef_end, classdef_kw, continue_kw, lexical_feedback::current_input_column, decrement_promptflag(), lexical_feedback::defining_func, do_kw, else_kw, elseif_kw, end_kw, end_try_catch_kw, end_unwind_protect_kw, endclassdef_kw, endenumeration_kw, endevents_kw, endfor_kw, endfunction_kw, endif_kw, endmethods_kw, endparfor_kw, endproperties_kw, endswitch_kw, endwhile_kw, token::enumeration_end, enumeration_kw, token::events_end, events_kw, lexical_feedback::fcn_file_full_name, token::for_end, for_kw, lexical_feedback::force_script, token::function_end, function_kw, get_kw, global_kw, token::if_end, if_kw, octave_kw_hash::in_word_set(), input_from_file(), lexical_feedback::input_line_number, inside_any_object_index(), octave_kw::kw_id, lexical_feedback::looking_at_decl_list, lexical_feedback::looking_at_return_list, lexical_feedback::looping, magic_file_kw, magic_line_kw, lexical_feedback::maybe_classdef_get_set_method, token::methods_end, methods_kw, otherwise_kw, panic_impossible, token::parfor_end, parfor_kw, lexical_feedback::parsed_function_name, lexical_feedback::parsing_classdef, persistent_kw, token::properties_end, properties_kw, push_token(), lexical_feedback::reading_classdef_file, lexical_feedback::reading_fcn_file, lexical_feedback::reading_script_file, return_kw, set_kw, token::simple_end, token::switch_end, switch_kw, octave_kw::tok, lexical_feedback::token_count, token::try_catch_end, try_kw, until_kw, unwind_protect_cleanup_kw, token::unwind_protect_end, unwind_protect_kw, token::while_end, and while_kw.

Referenced by fq_identifier_contains_keyword(), handle_identifier(), and handle_superclass_identifier().

virtual bool octave_base_lexer::is_push_lexer ( void  ) const
inlinevirtual

Reimplemented in octave_push_lexer.

Definition at line 549 of file lex.h.

bool octave_base_lexer::is_variable ( const std::string &  name)

Definition at line 5022 of file lex.cc.

References symbol_table::is_variable(), and lexical_feedback::pending_local_variables.

Referenced by handle_identifier().

void octave_base_lexer::lexer_debug ( const char *  pattern)

Definition at line 5859 of file lex.cc.

References display_start_state(), flex_yytext(), and lexer_debug_flag.

Referenced by handle_end_of_input(), handle_language_extension_op(), and handle_op().

bool octave_base_lexer::looking_at_space ( void  )

Definition at line 4996 of file lex.cc.

References text_yyinput(), and xunput().

Referenced by looks_like_command_arg().

bool octave_base_lexer::looks_like_command_arg ( void  )

Definition at line 5448 of file lex.cc.

References looking_at_space(), lexical_feedback::previous_token_may_be_command(), and lexical_feedback::space_follows_previous_token().

void lexical_feedback::mark_as_variable ( const std::string &  nm)
inherited
void lexical_feedback::mark_as_variables ( const std::list< std::string > &  lst)
inherited

Definition at line 4768 of file lex.cc.

References lexical_feedback::pending_local_variables.

Referenced by octave_base_parser::validate_matrix_for_assignment().

void lexical_feedback::mark_previous_token_trailing_space ( void  )
inherited

Definition at line 4709 of file lex.cc.

References lexical_feedback::token_cache::front(), token::mark_trailing_space(), lexical_feedback::previous_token_value_is(), and lexical_feedback::tokens.

Referenced by handle_continuation().

void octave_base_lexer::maybe_gripe_language_extension_comment ( char  c)

Definition at line 5675 of file lex.cc.

References gripe_language_extension().

void lexical_feedback::maybe_mark_previous_token_as_variable ( void  )
inherited

Definition at line 4759 of file lex.cc.

References lexical_feedback::token_cache::front(), token::is_symbol(), lexical_feedback::pending_local_variables, token::symbol_name(), and lexical_feedback::tokens.

bool octave_base_lexer::maybe_unput_comma_before_unary_op ( int  tok)

Definition at line 5964 of file lex.cc.

References lexical_feedback::previous_token_is_binop(), lexical_feedback::previous_token_value(), lexical_feedback::space_follows_previous_token(), text_yyinput(), whitespace_is_significant(), and xunput().

Referenced by handle_language_extension_unary_op(), and handle_unary_op().

void octave_base_lexer::maybe_warn_separator_insert ( char  sep)

Definition at line 5630 of file lex.cc.

References lexical_feedback::fcn_file_full_name, lexical_feedback::input_line_number, and warning_with_id().

octave_base_lexer& octave_base_lexer::operator= ( const octave_base_lexer &  )
protected
void octave_base_lexer::pop_start_state ( void  )

Definition at line 5883 of file lex.cc.

References BEGIN, OCTAVE_YYG, start_state(), and start_state_stack.

Referenced by handle_close_bracket().

void octave_base_lexer::prep_for_file ( void  )

Definition at line 4890 of file lex.cc.

References INPUT_FILE_START, push_start_state(), and lexical_feedback::reading_script_file.

Referenced by parse_fcn_file().

bool lexical_feedback::previous_token_is_binop ( void  ) const
inherited

Definition at line 4724 of file lex.cc.

References ADD_EQ, AND_EQ, DIV_EQ, EDIV, EDIV_EQ, ELEFTDIV, ELEFTDIV_EQ, EMINUS, EMUL, EMUL_EQ, EPOW, EPOW_EQ, EXPR_AND, EXPR_AND_AND, EXPR_EQ, EXPR_GE, EXPR_GT, EXPR_LE, EXPR_LT, EXPR_NE, EXPR_NOT, EXPR_OR, EXPR_OR_OR, LEFTDIV, LEFTDIV_EQ, LSHIFT, LSHIFT_EQ, MUL_EQ, OR_EQ, POW, POW_EQ, lexical_feedback::previous_token_value(), RSHIFT, RSHIFT_EQ, and SUB_EQ.

Referenced by maybe_unput_comma_before_unary_op().

bool lexical_feedback::previous_token_is_keyword ( void  ) const
inherited

Definition at line 4745 of file lex.cc.

References lexical_feedback::token_cache::front(), token::is_keyword(), and lexical_feedback::tokens.

bool lexical_feedback::previous_token_may_be_command ( void  ) const
inherited

Definition at line 4752 of file lex.cc.

References lexical_feedback::token_cache::front(), token::may_be_command(), and lexical_feedback::tokens.

Referenced by looks_like_command_arg().

int lexical_feedback::previous_token_value ( void  ) const
inherited

Definition at line 4695 of file lex.cc.

References lexical_feedback::token_cache::front(), token::token_value(), and lexical_feedback::tokens.

Referenced by maybe_unput_comma_before_unary_op(), and lexical_feedback::previous_token_is_binop().

bool lexical_feedback::previous_token_value_is ( int  tok_val) const
inherited

Definition at line 4702 of file lex.cc.

References lexical_feedback::token_cache::front(), token::token_value_is(), and lexical_feedback::tokens.

Referenced by lexical_feedback::mark_previous_token_trailing_space().

virtual int octave_base_lexer::promptflag ( void  ) const
pure virtual

Implemented in octave_push_lexer, and octave_lexer.

Referenced by reset().

virtual int octave_base_lexer::promptflag ( int  )
pure virtual

Implemented in octave_push_lexer, and octave_lexer.

void octave_base_lexer::push_start_state ( int  state)

Definition at line 5873 of file lex.cc.

References BEGIN, OCTAVE_YYG, start_state(), and start_state_stack.

Referenced by begin_string(), clear_start_state(), enable_fq_identifier(), and prep_for_file().

void octave_base_lexer::push_token ( token *  tok)

Definition at line 5698 of file lex.cc.

References octave_get_lval(), lexical_feedback::token_cache::push(), scanner, lexical_feedback::tokens, and YYSTYPE.

Referenced by count_token(), handle_fq_identifier(), handle_identifier(), handle_meta_identifier(), handle_number(), handle_op_internal(), handle_superclass_identifier(), handle_token(), and is_keyword_token().

void octave_base_lexer::reset ( void  )
virtual

Reimplemented in octave_push_lexer, and octave_lexer.

Definition at line 4863 of file lex.cc.

References lexical_feedback::symbol_table_context::clear(), clear_start_state(), comment_buf, input_from_eval_string(), interactive, octave_restart(), promptflag(), quitting_gracefully, lexical_feedback::reading_classdef_file, lexical_feedback::reading_fcn_file, lexical_feedback::reading_script_file, lexical_feedback::reset(), octave_base_lexer::comment_buffer::reset(), scanner, and lexical_feedback::symtab_context.

Referenced by octave_base_parser::reset(), octave_lexer::reset(), and octave_push_lexer::reset().

int octave_base_lexer::show_token ( int  tok)

Definition at line 6060 of file lex.cc.

References display_token(), lexer_debug_flag, and Vdisplay_tokens.

Referenced by count_token_internal().

bool lexical_feedback::space_follows_previous_token ( void  ) const
inherited

Definition at line 4717 of file lex.cc.

References lexical_feedback::token_cache::front(), token::space_follows_token(), and lexical_feedback::tokens.

Referenced by looks_like_command_arg(), and maybe_unput_comma_before_unary_op().

int octave_base_lexer::start_state ( void  ) const
inline

Definition at line 660 of file lex.h.

Referenced by display_start_state(), pop_start_state(), and push_start_state().

int octave_base_lexer::text_yyinput ( void  )

Definition at line 4937 of file lex.cc.

References display_character(), lexer_debug_flag, scanner, and xunput().

Referenced by looking_at_space(), and maybe_unput_comma_before_unary_op().

bool octave_base_lexer::whitespace_is_significant ( void  )

Definition at line 5289 of file lex.cc.

References lexical_feedback::bbp_nesting_level::is_brace(), lexical_feedback::bbp_nesting_level::is_bracket(), lexical_feedback::looking_at_object_index, and lexical_feedback::nesting_level.

Referenced by maybe_unput_comma_before_unary_op().

void octave_base_lexer::xunput ( char  c,
char *  buf 
)

Definition at line 4972 of file lex.cc.

References display_character(), lexer_debug_flag, scanner, and yyunput().

Referenced by looking_at_space(), maybe_unput_comma_before_unary_op(), text_yyinput(), and xunput().

void octave_base_lexer::xunput ( char  c)

Definition at line 4988 of file lex.cc.

References flex_yytext(), and xunput().

Member Data Documentation

bool lexical_feedback::at_beginning_of_statement
inherited

Definition at line 313 of file lex.h.

Referenced by finish_comment(), handle_continuation(), handle_identifier(), handle_number(), handle_op_internal(), is_keyword_token(), and lexical_feedback::reset().

int lexical_feedback::block_comment_nesting_level
inherited

Definition at line 398 of file lex.h.

Referenced by handle_end_of_input(), and lexical_feedback::reset().

int lexical_feedback::braceflag
inherited

Definition at line 386 of file lex.h.

Referenced by handle_close_bracket(), and lexical_feedback::reset().

int lexical_feedback::bracketflag
inherited

Definition at line 383 of file lex.h.

Referenced by handle_close_bracket(), and lexical_feedback::reset().

int lexical_feedback::command_arg_paren_count
inherited

Definition at line 401 of file lex.h.

Referenced by lexical_feedback::reset().

comment_buffer octave_base_lexer::comment_buf

Definition at line 636 of file lex.h.

Referenced by finish_comment(), octave_base_parser::finish_if_command(), octave_base_parser::finish_switch_command(), octave_base_parser::make_classdef(), octave_base_parser::make_classdef_enum_block(), octave_base_parser::make_classdef_events_block(), octave_base_parser::make_classdef_methods_block(), octave_base_parser::make_classdef_properties_block(), octave_base_parser::make_do_until_command(), octave_base_parser::make_for_command(), octave_base_parser::make_try_command(), octave_base_parser::make_unwind_command(), octave_base_parser::make_while_command(), reset(), and octave_base_parser::start_function().

std::string lexical_feedback::comment_text
inherited

Definition at line 411 of file lex.h.

Referenced by finish_comment(), handle_continuation(), and lexical_feedback::reset().

int lexical_feedback::current_input_column
inherited

Definition at line 380 of file lex.h.

Referenced by begin_string(), octave_base_parser::bison_error(), count_token(), handle_continuation(), handle_fq_identifier(), handle_identifier(), handle_meta_identifier(), handle_number(), handle_op_internal(), handle_superclass_identifier(), handle_token(), is_keyword_token(), octave_base_parser::make_anon_fcn_handle(), and lexical_feedback::reset().

std::string lexical_feedback::current_input_line
inherited

Definition at line 408 of file lex.h.

Referenced by octave_base_parser::bison_error(), octave_lexer::fill_flex_buffer(), and lexical_feedback::reset().

int lexical_feedback::defining_func
inherited

Definition at line 392 of file lex.h.

Referenced by is_keyword_token(), octave_base_parser::recover_from_parsing_function(), and lexical_feedback::reset().

bool lexical_feedback::end_of_input
inherited

Definition at line 309 of file lex.h.

Referenced by eval_string(), main_loop(), and lexical_feedback::reset().

std::string lexical_feedback::fcn_file_full_name
inherited

Definition at line 427 of file lex.h.

Referenced by octave_base_parser::bison_error(), octave_base_parser::frob_function(), gripe_language_extension(), gripe_single_quote_string(), is_keyword_token(), octave_base_parser::make_decl_command(), octave_base_parser::make_script(), octave_base_parser::maybe_warn_assign_as_truth_value(), octave_base_parser::maybe_warn_missing_semi(), maybe_warn_separator_insert(), octave_base_parser::maybe_warn_variable_switch_label(), parse_fcn_file(), and lexical_feedback::reset().

std::string lexical_feedback::fcn_file_name
inherited

Definition at line 424 of file lex.h.

Referenced by octave_base_parser::frob_function(), handle_end_of_input(), octave_base_parser::make_classdef(), octave_base_parser::make_script(), parse_fcn_file(), and lexical_feedback::reset().

bool lexical_feedback::force_script
inherited

Definition at line 365 of file lex.h.

Referenced by octave_base_parser::frob_function(), is_keyword_token(), parse_fcn_file(), and lexical_feedback::reset().

std::string lexical_feedback::help_text
inherited

Definition at line 414 of file lex.h.

Referenced by finish_comment(), octave_base_parser::frob_function(), octave_base_parser::make_script(), and lexical_feedback::reset().

input_buffer octave_base_lexer::input_buf

Definition at line 633 of file lex.h.

Referenced by octave_lexer::fill_flex_buffer(), and octave_push_lexer::fill_flex_buffer().

int lexical_feedback::input_line_number
inherited

Definition at line 377 of file lex.h.

Referenced by begin_string(), octave_base_parser::bison_error(), count_token(), gripe_language_extension(), gripe_single_quote_string(), handle_continuation(), handle_end_of_input(), handle_fq_identifier(), handle_identifier(), handle_meta_identifier(), handle_number(), handle_op_internal(), handle_superclass_identifier(), handle_token(), is_keyword_token(), octave_base_parser::make_anon_fcn_handle(), maybe_warn_separator_insert(), and lexical_feedback::reset().

bool lexical_feedback::looking_at_anon_fcn_args
inherited

Definition at line 316 of file lex.h.

Referenced by lexical_feedback::reset().

bool lexical_feedback::looking_at_decl_list
inherited

Definition at line 326 of file lex.h.

Referenced by is_keyword_token(), and lexical_feedback::reset().

int lexical_feedback::looking_at_function_handle
inherited

Definition at line 395 of file lex.h.

Referenced by handle_identifier(), and lexical_feedback::reset().

bool lexical_feedback::looking_at_indirect_ref
inherited

Definition at line 341 of file lex.h.

Referenced by handle_identifier(), octave_base_parser::make_indirect_ref(), and lexical_feedback::reset().

bool lexical_feedback::looking_at_initializer_expression
inherited

Definition at line 330 of file lex.h.

Referenced by lexical_feedback::reset().

bool lexical_feedback::looking_at_matrix_or_assign_lhs
inherited

Definition at line 334 of file lex.h.

Referenced by lexical_feedback::reset().

std::list<bool> lexical_feedback::looking_at_object_index
inherited

Definition at line 431 of file lex.h.

Referenced by lexical_feedback::init(), inside_any_object_index(), lexical_feedback::reset(), and whitespace_is_significant().

bool lexical_feedback::looking_at_parameter_list
inherited

Definition at line 322 of file lex.h.

Referenced by octave_base_parser::recover_from_parsing_function(), and lexical_feedback::reset().

bool lexical_feedback::looking_at_return_list
inherited

Definition at line 319 of file lex.h.

Referenced by is_keyword_token(), octave_base_parser::recover_from_parsing_function(), and lexical_feedback::reset().

bool lexical_feedback::looking_for_object_index
inherited

Definition at line 337 of file lex.h.

Referenced by handle_identifier(), handle_number(), handle_op_internal(), and lexical_feedback::reset().

int lexical_feedback::looping
inherited

Definition at line 389 of file lex.h.

Referenced by is_keyword_token(), octave_base_parser::make_do_until_command(), octave_base_parser::make_for_command(), octave_base_parser::make_while_command(), and lexical_feedback::reset().

bool lexical_feedback::maybe_classdef_get_set_method
inherited

Definition at line 352 of file lex.h.

Referenced by is_keyword_token(), and lexical_feedback::reset().

bbp_nesting_level lexical_feedback::nesting_level
inherited

Definition at line 446 of file lex.h.

Referenced by finish_comment(), handle_close_bracket(), lexical_feedback::reset(), and whitespace_is_significant().

std::stack<bool> lexical_feedback::parsed_function_name
inherited

Definition at line 436 of file lex.h.

Referenced by is_keyword_token(), octave_base_parser::recover_from_parsing_function(), and lexical_feedback::reset().

bool lexical_feedback::parsing_class_method
inherited

Definition at line 344 of file lex.h.

Referenced by octave_base_parser::frob_function(), parse_fcn_file(), and lexical_feedback::reset().

bool lexical_feedback::parsing_classdef
inherited

Definition at line 347 of file lex.h.

Referenced by is_keyword_token(), and lexical_feedback::reset().

bool lexical_feedback::parsing_classdef_get_method
inherited

Definition at line 355 of file lex.h.

Referenced by lexical_feedback::reset().

bool lexical_feedback::parsing_classdef_set_method
inherited

Definition at line 358 of file lex.h.

Referenced by lexical_feedback::reset().

std::set<std::string> lexical_feedback::pending_local_variables
inherited

Definition at line 439 of file lex.h.

Referenced by is_variable(), lexical_feedback::mark_as_variables(), and lexical_feedback::maybe_mark_previous_token_as_variable().

bool lexical_feedback::quote_is_transpose
inherited

Definition at line 361 of file lex.h.

bool lexical_feedback::reading_classdef_file
inherited

Definition at line 374 of file lex.h.

Referenced by octave_base_parser::bison_error(), octave_base_parser::frob_function(), handle_end_of_input(), is_keyword_token(), parse_fcn_file(), octave_base_reader::reading_classdef_file(), lexical_feedback::reset(), and reset().

bool lexical_feedback::reading_fcn_file
inherited

Definition at line 368 of file lex.h.

Referenced by octave_base_parser::bison_error(), octave_base_parser::finish_function(), octave_base_parser::frob_function(), handle_end_of_input(), is_keyword_token(), octave_base_reader::reading_fcn_file(), octave_base_parser::recover_from_parsing_function(), lexical_feedback::reset(), and reset().

bool lexical_feedback::reading_script_file
inherited

Definition at line 371 of file lex.h.

Referenced by octave_base_parser::bison_error(), octave_base_parser::frob_function(), handle_end_of_input(), is_keyword_token(), octave_base_parser::make_decl_command(), prep_for_file(), octave_base_reader::reading_script_file(), lexical_feedback::reset(), and reset().

void* octave_base_lexer::scanner

Definition at line 630 of file lex.h.

Referenced by current_token(), fatal_error(), flex_yyleng(), flex_yytext(), init(), push_token(), reset(), text_yyinput(), xunput(), and ~octave_base_lexer().

std::stack<int> octave_base_lexer::start_state_stack
protected

Definition at line 695 of file lex.h.

Referenced by clear_start_state(), pop_start_state(), and push_start_state().

int lexical_feedback::string_column
inherited

Definition at line 421 of file lex.h.

Referenced by begin_string(), and lexical_feedback::reset().

int lexical_feedback::string_line
inherited

Definition at line 420 of file lex.h.

Referenced by begin_string(), and lexical_feedback::reset().

std::string lexical_feedback::string_text
inherited

Definition at line 417 of file lex.h.

Referenced by lexical_feedback::reset().

symbol_table_context lexical_feedback::symtab_context
inherited

Definition at line 442 of file lex.h.

Referenced by handle_identifier(), octave_base_parser::make_anon_fcn_handle(), octave_base_parser::recover_from_parsing_function(), reset(), and octave_base_parser::start_function().

size_t lexical_feedback::token_count
inherited

Definition at line 405 of file lex.h.

Referenced by count_token_internal(), is_keyword_token(), and lexical_feedback::reset().

token_cache lexical_feedback::tokens
inherited

Definition at line 449 of file lex.h.

Referenced by lexical_feedback::mark_previous_token_trailing_space(), lexical_feedback::maybe_mark_previous_token_as_variable(), lexical_feedback::previous_token_is_keyword(), lexical_feedback::previous_token_may_be_command(), lexical_feedback::previous_token_value(), lexical_feedback::previous_token_value_is(), push_token(), lexical_feedback::reset(), lexical_feedback::space_follows_previous_token(), and lexical_feedback::~lexical_feedback().

The documentation for this class was generated from the following files:
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