octave: libinterp/parse-tree/lex.h annotate

annotate libinterp/parse-tree/lex.h @ 16101:8d19626b38ae

provide copy contructor and operator = for lexical_feedback class. * lex.h, lex.ll (lexical_feedback::lexical_feedback): Provide copy constructor. Correctly initialize looking_at_anon_fcn_args to false. (lexical_feedback::operator=): New function. (lexical_feedback::init): Simplify. (reset_parser): Assign new lexical_feedback object to global lexer_flags instead of calling init on existing object.

author	John W. Eaton <jwe@octave.org>
date	Mon, 25 Feb 2013 20:06:44 -0500
parents	6b26e18d1dcb
children	679a54d274d9

rev	line source
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1 /*
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2
14138 72c96de7a403 maint: update copyright notices for 2012 John W. Eaton <jwe@octave.org> parents: 13973 diff changeset	3 Copyright (C) 1993-2012 John W. Eaton
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	4
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	5 This file is part of Octave.
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	6
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	7 Octave is free software; you can redistribute it and/or modify it
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	8 under the terms of the GNU General Public License as published by the
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5775 diff changeset	9 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5775 diff changeset	10 option) any later version.
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	11
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	12 Octave is distributed in the hope that it will be useful, but WITHOUT
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	15 for more details.
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	16
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	17 You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5775 diff changeset	18 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5775 diff changeset	19 <http://www.gnu.org/licenses/>.
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	20
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	21 */
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	22
383 0b52c68ec81f [project @ 1994-03-09 21:19:44 by jwe] jwe parents: 247 diff changeset	23 #if !defined (octave_lex_h)
0b52c68ec81f [project @ 1994-03-09 21:19:44 by jwe] jwe parents: 247 diff changeset	24 #define octave_lex_h 1
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	25
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	26 #include <list>
16101 8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	27 #include <set>
11464 21b5284fa78d avoid error when parsing nested functions John W. Eaton <jwe@octave.org> parents: 11367 diff changeset	28 #include <stack>
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	29
5775 ace8d8d26933 [project @ 2006-04-24 19:13:06 by jwe] jwe parents: 5307 diff changeset	30 // FIXME -- these input buffer things should be members of a
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	31 // parser input stream class.
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	32
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	33 typedef struct yy_buffer_state *YY_BUFFER_STATE;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	34
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	35 // Associate a buffer with a new file to read.
9247 b2790fd23800 More export symbols to allow usage from an IDE. Michael Goffioul <michael.goffioul@gmail.com> parents: 8920 diff changeset	36 extern OCTINTERP_API YY_BUFFER_STATE create_buffer (FILE *f);
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	37
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	38 // Report the current buffer.
9247 b2790fd23800 More export symbols to allow usage from an IDE. Michael Goffioul <michael.goffioul@gmail.com> parents: 8920 diff changeset	39 extern OCTINTERP_API YY_BUFFER_STATE current_buffer (void);
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	40
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	41 // Connect to new buffer buffer.
9247 b2790fd23800 More export symbols to allow usage from an IDE. Michael Goffioul <michael.goffioul@gmail.com> parents: 8920 diff changeset	42 extern OCTINTERP_API void switch_to_buffer (YY_BUFFER_STATE buf);
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	43
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	44 // Delete a buffer.
9247 b2790fd23800 More export symbols to allow usage from an IDE. Michael Goffioul <michael.goffioul@gmail.com> parents: 8920 diff changeset	45 extern OCTINTERP_API void delete_buffer (YY_BUFFER_STATE buf);
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	46
13973 2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13237 diff changeset	47 extern OCTINTERP_API void clear_all_buffers (void);
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13237 diff changeset	48
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13237 diff changeset	49 extern OCTINTERP_API void cleanup_parser (void);
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13237 diff changeset	50
4867 c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe] jwe parents: 4753 diff changeset	51 // Is the given string a keyword?
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe] jwe parents: 4753 diff changeset	52 extern bool is_keyword (const std::string& s);
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe] jwe parents: 4753 diff changeset	53
9474 25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9396 diff changeset	54 extern void prep_lexer_for_script_file (void);
25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9396 diff changeset	55 extern void prep_lexer_for_function_file (void);
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	56
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	57 // For communication between the lexer and parser.
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	58
3585 d9803711e047 [project @ 2000-02-08 04:35:39 by jwe] jwe parents: 3351 diff changeset	59 class
d9803711e047 [project @ 2000-02-08 04:35:39 by jwe] jwe parents: 3351 diff changeset	60 lexical_feedback
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	61 {
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	62 public:
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	63
11515 6dbf9bcce90e more data member initialization fixes John W. Eaton <jwe@octave.org> parents: 11464 diff changeset	64 lexical_feedback (void)
16100 6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	65 : convert_spaces_to_comma (true), do_comma_insert (false),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	66 at_beginning_of_statement (true),
16101 8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	67 looking_at_anon_fcn_args (false), looking_at_return_list (false),
16100 6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	68 looking_at_parameter_list (false), looking_at_decl_list (false),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	69 looking_at_initializer_expression (false),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	70 looking_at_matrix_or_assign_lhs (false),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	71 looking_for_object_index (false),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	72 looking_at_indirect_ref (false), parsing_class_method (false),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	73 maybe_classdef_get_set_method (false), parsing_classdef (false),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	74 quote_is_transpose (false), bracketflag (0), braceflag (0),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	75 looping (0), defining_func (0), looking_at_function_handle (0),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	76 looking_at_object_index (), parsed_function_name (),
11584 cda4aa780d58 Another round of initialising members in the constructor initialisation list Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11523 diff changeset	77 pending_local_variables ()
16101 8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	78 {
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	79 init ();
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	80 }
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	81
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	82 lexical_feedback (const lexical_feedback& lf)
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	83 : convert_spaces_to_comma (lf.convert_spaces_to_comma),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	84 do_comma_insert (lf.do_comma_insert),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	85 at_beginning_of_statement (lf.at_beginning_of_statement),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	86 looking_at_anon_fcn_args (lf.looking_at_anon_fcn_args),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	87 looking_at_return_list (lf.looking_at_return_list),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	88 looking_at_parameter_list (lf.looking_at_parameter_list),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	89 looking_at_decl_list (lf.looking_at_decl_list),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	90 looking_at_initializer_expression (lf.looking_at_initializer_expression),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	91 looking_at_matrix_or_assign_lhs (lf.looking_at_matrix_or_assign_lhs),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	92 looking_for_object_index (lf.looking_for_object_index),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	93 looking_at_indirect_ref (lf.looking_at_indirect_ref),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	94 parsing_class_method (lf.parsing_class_method),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	95 maybe_classdef_get_set_method (lf.maybe_classdef_get_set_method),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	96 parsing_classdef (lf.parsing_classdef),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	97 quote_is_transpose (lf.quote_is_transpose),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	98 bracketflag (lf.bracketflag),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	99 braceflag (lf.braceflag),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	100 looping (lf.looping),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	101 defining_func (lf.defining_func),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	102 looking_at_function_handle (lf.looking_at_function_handle),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	103 looking_at_object_index (lf.looking_at_object_index),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	104 parsed_function_name (lf.parsed_function_name),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	105 pending_local_variables (lf.pending_local_variables)
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	106 { }
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	107
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	108 lexical_feedback& operator = (const lexical_feedback& lf)
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	109 {
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	110 if (&lf != this)
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	111 {
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	112 convert_spaces_to_comma = lf.convert_spaces_to_comma;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	113 do_comma_insert = lf.do_comma_insert;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	114 at_beginning_of_statement = lf.at_beginning_of_statement;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	115 looking_at_anon_fcn_args = lf.looking_at_anon_fcn_args;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	116 looking_at_return_list = lf.looking_at_return_list;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	117 looking_at_parameter_list = lf.looking_at_parameter_list;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	118 looking_at_decl_list = lf.looking_at_decl_list;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	119 looking_at_initializer_expression = lf.looking_at_initializer_expression;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	120 looking_at_matrix_or_assign_lhs = lf.looking_at_matrix_or_assign_lhs;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	121 looking_for_object_index = lf.looking_for_object_index;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	122 looking_at_indirect_ref = lf.looking_at_indirect_ref;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	123 parsing_class_method = lf.parsing_class_method;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	124 maybe_classdef_get_set_method = lf.maybe_classdef_get_set_method;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	125 parsing_classdef = lf.parsing_classdef;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	126 quote_is_transpose = lf.quote_is_transpose;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	127 bracketflag = lf.bracketflag;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	128 braceflag = lf.braceflag;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	129 looping = lf.looping;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	130 defining_func = lf.defining_func;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	131 looking_at_function_handle = lf.looking_at_function_handle;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	132 looking_at_object_index = lf.looking_at_object_index;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	133 parsed_function_name = lf.parsed_function_name;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	134 pending_local_variables = lf.pending_local_variables;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	135 }
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	136
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	137 return *this;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	138 }
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	139
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	140 ~lexical_feedback (void) { }
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	141
16101 8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	142 void init (void)
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	143 {
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	144 // The closest paren, brace, or bracket nesting is not an object
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	145 // index.
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	146 looking_at_object_index.push_front (false);
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	147 }
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	148
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2857 diff changeset	149 // TRUE means that we should convert spaces to a comma inside a
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	150 // matrix definition.
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	151 bool convert_spaces_to_comma;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	152
16100 6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	153 // GAG. Stupid kludge so that [[1,2][3,4]] will work.
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	154 bool do_comma_insert;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	155
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	156 // TRUE means we are at the beginning of a statement, where a
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	157 // command name is possible.
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	158 bool at_beginning_of_statement;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	159
13237 1bfca2bbea8b fix parsing of anonymous functions inside cell array lists. John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	160 // TRUE means we are parsing an anonymous function argument list.
1bfca2bbea8b fix parsing of anonymous functions inside cell array lists. John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	161 bool looking_at_anon_fcn_args;
1bfca2bbea8b fix parsing of anonymous functions inside cell array lists. John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	162
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2857 diff changeset	163 // TRUE means we're parsing the return list for a function.
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	164 bool looking_at_return_list;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	165
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2857 diff changeset	166 // TRUE means we're parsing the parameter list for a function.
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	167 bool looking_at_parameter_list;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	168
8701 1652e39b934e handle command names in declaration lists John W. Eaton <jwe@octave.org> parents: 8001 diff changeset	169 // TRUE means we're parsing a declaration list (global or
1652e39b934e handle command names in declaration lists John W. Eaton <jwe@octave.org> parents: 8001 diff changeset	170 // persistent).
1652e39b934e handle command names in declaration lists John W. Eaton <jwe@octave.org> parents: 8001 diff changeset	171 bool looking_at_decl_list;
1652e39b934e handle command names in declaration lists John W. Eaton <jwe@octave.org> parents: 8001 diff changeset	172
7634 ae90e05ad299 fix parameter list initializer bug John W. Eaton <jwe@octave.org> parents: 7336 diff changeset	173 // TRUE means we are looking at the initializer expression for a
ae90e05ad299 fix parameter list initializer bug John W. Eaton <jwe@octave.org> parents: 7336 diff changeset	174 // parameter list element.
ae90e05ad299 fix parameter list initializer bug John W. Eaton <jwe@octave.org> parents: 7336 diff changeset	175 bool looking_at_initializer_expression;
ae90e05ad299 fix parameter list initializer bug John W. Eaton <jwe@octave.org> parents: 7336 diff changeset	176
3189 bef7b73c0724 [project @ 1998-10-16 18:05:26 by jwe] jwe parents: 3165 diff changeset	177 // TRUE means we're parsing a matrix or the left hand side of
bef7b73c0724 [project @ 1998-10-16 18:05:26 by jwe] jwe parents: 3165 diff changeset	178 // multi-value assignment statement.
bef7b73c0724 [project @ 1998-10-16 18:05:26 by jwe] jwe parents: 3165 diff changeset	179 bool looking_at_matrix_or_assign_lhs;
bef7b73c0724 [project @ 1998-10-16 18:05:26 by jwe] jwe parents: 3165 diff changeset	180
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	181 // Object index not possible until we've seen something.
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	182 bool looking_for_object_index;
4234 90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe] jwe parents: 4182 diff changeset	183
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2857 diff changeset	184 // TRUE means we're looking at an indirect reference to a
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	185 // structure element.
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	186 bool looking_at_indirect_ref;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	187
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	188 // TRUE means we are parsing a class method in function or classdef file.
7336 745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe] jwe parents: 7017 diff changeset	189 bool parsing_class_method;
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe] jwe parents: 7017 diff changeset	190
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	191 // TRUE means we are parsing a class method declaration line in a
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	192 // classdef file and can accept a property get or set method name.
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	193 // For example, "get.PropertyName" is recognized as a function name.
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	194 bool maybe_classdef_get_set_method;
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	195
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	196 // TRUE means we are parsing a classdef file
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	197 bool parsing_classdef;
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	198
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	199 // Return transpose or start a string?
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	200 bool quote_is_transpose;
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	201
16100 6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	202 // Square bracket level count.
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	203 int bracketflag;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	204
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	205 // Curly brace level count.
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	206 int braceflag;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	207
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	208 // TRUE means we're in the middle of defining a loop.
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	209 int looping;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	210
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	211 // Nonzero means we're in the middle of defining a function.
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	212 int defining_func;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	213
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	214 // Nonzero means we are parsing a function handle.
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	215 int looking_at_function_handle;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	216
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	217 // If the front of the list is TRUE, the closest paren, brace, or
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	218 // bracket nesting is an index for an object.
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	219 std::list<bool> looking_at_object_index;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	220
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	221 // If the top of the stack is TRUE, then we've already seen the name
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	222 // of the current function. Should only matter if
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	223 // current_function_level > 0
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	224 std::stack<bool> parsed_function_name;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	225
8001 ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	226 // Set of identifiers that might be local variable names.
ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	227 std::set<std::string> pending_local_variables;
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	228 };
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	229
7720 4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	230 class
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	231 stream_reader
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	232 {
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	233 public:
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	234 virtual int getc (void) = 0;
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	235 virtual int ungetc (int c) = 0;
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	236
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	237 protected:
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	238 stream_reader (void) { }
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	239 ~stream_reader (void) { }
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	240
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	241 private:
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	242
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	243 // No copying!
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	244 stream_reader (const stream_reader&);
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	245 stream_reader& operator = (const stream_reader&);
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	246 };
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	247
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	248 extern std::string
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	249 grab_comment_block (stream_reader& reader, bool at_bol, bool& eof);
7720 4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	250
3883 69b6bd271277 [project @ 2002-04-02 21:05:10 by jwe] jwe parents: 3585 diff changeset	251 // TRUE means that we have encountered EOF on the input stream.
69b6bd271277 [project @ 2002-04-02 21:05:10 by jwe] jwe parents: 3585 diff changeset	252 extern bool parser_end_of_input;
69b6bd271277 [project @ 2002-04-02 21:05:10 by jwe] jwe parents: 3585 diff changeset	253
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	254 // Flags that need to be shared between the lexer and parser.
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	255 extern lexical_feedback lexer_flags;
440 e27d10f2e573 [project @ 1994-05-30 03:33:37 by jwe] jwe parents: 383 diff changeset	256
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	257 #endif

Mercurial > octave

annotate libinterp/parse-tree/lex.h @ 16101:8d19626b38ae