octave-nkf: src/lex.h annotate

annotate src/lex.h @ 11586:12df7854fa7c

strip trailing whitespace from source files

author	John W. Eaton <jwe@octave.org>
date	Thu, 20 Jan 2011 17:24:59 -0500
parents	cda4aa780d58
children	1bfca2bbea8b

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
11523 fd0a3ac60b0e update copyright notices John W. Eaton <jwe@octave.org> parents: 11515 diff changeset	3 Copyright (C) 1993-2011 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>
11464 21b5284fa78d avoid error when parsing nested functions John W. Eaton <jwe@octave.org> parents: 11367 diff changeset	27 #include <stack>
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	28
5775 ace8d8d26933 [project @ 2006-04-24 19:13:06 by jwe] jwe parents: 5307 diff changeset	29 // 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	30 // parser input stream class.
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	31
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	32 typedef struct yy_buffer_state *YY_BUFFER_STATE;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	33
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	34 // 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	35 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	36
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	37 // 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	38 extern OCTINTERP_API YY_BUFFER_STATE current_buffer (void);
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	39
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	40 // 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	41 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	42
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	43 // Delete a buffer.
9247 b2790fd23800 More export symbols to allow usage from an IDE. Michael Goffioul <michael.goffioul@gmail.com> parents: 8920 diff changeset	44 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	45
4867 c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe] jwe parents: 4753 diff changeset	46 // Is the given string a keyword?
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe] jwe parents: 4753 diff changeset	47 extern bool is_keyword (const std::string& s);
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe] jwe parents: 4753 diff changeset	48
9474 25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9396 diff changeset	49 extern void prep_lexer_for_script_file (void);
25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9396 diff changeset	50 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	51
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	52 // For communication between the lexer and parser.
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	53
3585 d9803711e047 [project @ 2000-02-08 04:35:39 by jwe] jwe parents: 3351 diff changeset	54 class
d9803711e047 [project @ 2000-02-08 04:35:39 by jwe] jwe parents: 3351 diff changeset	55 lexical_feedback
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	56 {
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	57 public:
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	58
11515 6dbf9bcce90e more data member initialization fixes John W. Eaton <jwe@octave.org> parents: 11464 diff changeset	59 lexical_feedback (void)
11584 cda4aa780d58 Another round of initialising members in the constructor initialisation list Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11523 diff changeset	60
11515 6dbf9bcce90e more data member initialization fixes John W. Eaton <jwe@octave.org> parents: 11464 diff changeset	61 : bracketflag (0), braceflag (0), looping (0),
6dbf9bcce90e more data member initialization fixes John W. Eaton <jwe@octave.org> parents: 11464 diff changeset	62 convert_spaces_to_comma (true), at_beginning_of_statement (true),
6dbf9bcce90e more data member initialization fixes John W. Eaton <jwe@octave.org> parents: 11464 diff changeset	63 defining_func (0), looking_at_function_handle (false),
6dbf9bcce90e more data member initialization fixes John W. Eaton <jwe@octave.org> parents: 11464 diff changeset	64 looking_at_return_list (false), looking_at_parameter_list (false),
6dbf9bcce90e more data member initialization fixes John W. Eaton <jwe@octave.org> parents: 11464 diff changeset	65 looking_at_decl_list (false), looking_at_initializer_expression (false),
6dbf9bcce90e more data member initialization fixes John W. Eaton <jwe@octave.org> parents: 11464 diff changeset	66 looking_at_matrix_or_assign_lhs (false), looking_at_object_index (),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11584 diff changeset	67 looking_for_object_index (false), do_comma_insert (false),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11584 diff changeset	68 looking_at_indirect_ref (false), parsed_function_name (),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11584 diff changeset	69 parsing_class_method (false), maybe_classdef_get_set_method (false),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11584 diff changeset	70 parsing_classdef (false), quote_is_transpose (false),
11584 cda4aa780d58 Another round of initialising members in the constructor initialisation list Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11523 diff changeset	71 pending_local_variables ()
cda4aa780d58 Another round of initialising members in the constructor initialisation list Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11523 diff changeset	72
11515 6dbf9bcce90e more data member initialization fixes John W. Eaton <jwe@octave.org> parents: 11464 diff changeset	73 {
6dbf9bcce90e more data member initialization fixes John W. Eaton <jwe@octave.org> parents: 11464 diff changeset	74 init ();
6dbf9bcce90e more data member initialization fixes John W. Eaton <jwe@octave.org> parents: 11464 diff changeset	75 }
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	76
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	77 ~lexical_feedback (void) { }
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	78
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	79 void init (void);
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	80
3351 8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3225 diff changeset	81 // Square bracket level count.
8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3225 diff changeset	82 int bracketflag;
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	83
4613 d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4240 diff changeset	84 // Curly brace level count.
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4240 diff changeset	85 int braceflag;
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4240 diff changeset	86
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2857 diff changeset	87 // TRUE means we're in the middle of defining a loop.
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	88 int looping;
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	89
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2857 diff changeset	90 // 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	91 // matrix definition.
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	92 bool convert_spaces_to_comma;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	93
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	94 // 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	95 // command name is possible.
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	96 bool at_beginning_of_statement;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	97
11367 b2191ebea12f don't process input_event_hook when we are parsing a function John W. Eaton <jwe@octave.org> parents: 10160 diff changeset	98 // Nonzero means we're in the middle of defining a function.
b2191ebea12f don't process input_event_hook when we are parsing a function John W. Eaton <jwe@octave.org> parents: 10160 diff changeset	99 int defining_func;
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	100
4930 bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe] jwe parents: 4867 diff changeset	101 // Nonzero means we are parsing a function handle.
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe] jwe parents: 4867 diff changeset	102 int looking_at_function_handle;
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe] jwe parents: 4867 diff changeset	103
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2857 diff changeset	104 // 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	105 bool looking_at_return_list;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	106
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2857 diff changeset	107 // 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	108 bool looking_at_parameter_list;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	109
8701 1652e39b934e handle command names in declaration lists John W. Eaton <jwe@octave.org> parents: 8001 diff changeset	110 // 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	111 // persistent).
1652e39b934e handle command names in declaration lists John W. Eaton <jwe@octave.org> parents: 8001 diff changeset	112 bool looking_at_decl_list;
1652e39b934e handle command names in declaration lists John W. Eaton <jwe@octave.org> parents: 8001 diff changeset	113
7634 ae90e05ad299 fix parameter list initializer bug John W. Eaton <jwe@octave.org> parents: 7336 diff changeset	114 // 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	115 // parameter list element.
ae90e05ad299 fix parameter list initializer bug John W. Eaton <jwe@octave.org> parents: 7336 diff changeset	116 bool looking_at_initializer_expression;
ae90e05ad299 fix parameter list initializer bug John W. Eaton <jwe@octave.org> parents: 7336 diff changeset	117
3189 bef7b73c0724 [project @ 1998-10-16 18:05:26 by jwe] jwe parents: 3165 diff changeset	118 // 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	119 // multi-value assignment statement.
bef7b73c0724 [project @ 1998-10-16 18:05:26 by jwe] jwe parents: 3165 diff changeset	120 bool looking_at_matrix_or_assign_lhs;
bef7b73c0724 [project @ 1998-10-16 18:05:26 by jwe] jwe parents: 3165 diff changeset	121
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	122 // If the front of the list is TRUE, the closest paren, brace, or
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	123 // bracket nesting is an index for an object.
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	124 std::list<bool> looking_at_object_index;
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	125
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	126 // 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	127 bool looking_for_object_index;
4234 90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe] jwe parents: 4182 diff changeset	128
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	129 // GAG. Stupid kludge so that [[1,2][3,4]] will work.
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	130 bool do_comma_insert;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	131
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2857 diff changeset	132 // 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	133 // structure element.
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	134 bool looking_at_indirect_ref;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	135
11464 21b5284fa78d avoid error when parsing nested functions John W. Eaton <jwe@octave.org> parents: 11367 diff changeset	136 // If the top of the stack is TRUE, then we've already seen the name
21b5284fa78d avoid error when parsing nested functions John W. Eaton <jwe@octave.org> parents: 11367 diff changeset	137 // of the current function. Should only matter if
21b5284fa78d avoid error when parsing nested functions John W. Eaton <jwe@octave.org> parents: 11367 diff changeset	138 // current_function_level > 0
21b5284fa78d avoid error when parsing nested functions John W. Eaton <jwe@octave.org> parents: 11367 diff changeset	139 std::stack<bool> parsed_function_name;
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2857 diff changeset	140
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	141 // 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	142 bool parsing_class_method;
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe] jwe parents: 7017 diff changeset	143
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	144 // 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	145 // 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	146 // For example, "get.PropertyName" is recognized as a function name.
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	147 bool maybe_classdef_get_set_method;
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	148
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	149 // TRUE means we are parsing a classdef file
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	150 bool parsing_classdef;
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	151
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	152 // Return transpose or start a string?
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	153 bool quote_is_transpose;
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	154
8001 ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	155 // 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	156 std::set<std::string> pending_local_variables;
ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	157
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	158 private:
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	159
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	160 lexical_feedback (const lexical_feedback&);
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	161
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	162 lexical_feedback& operator = (const lexical_feedback&);
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	163 };
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	164
7720 4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	165 class
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	166 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	167 {
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	168 public:
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	169 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	170 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	171
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	172 protected:
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	173 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	174 ~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	175
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	176 private:
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	177
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	178 // 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	179 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	180 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	181 };
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	182
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	183 extern std::string
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	184 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	185
3883 69b6bd271277 [project @ 2002-04-02 21:05:10 by jwe] jwe parents: 3585 diff changeset	186 // 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	187 extern bool parser_end_of_input;
69b6bd271277 [project @ 2002-04-02 21:05:10 by jwe] jwe parents: 3585 diff changeset	188
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	189 // 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	190 extern lexical_feedback lexer_flags;
440 e27d10f2e573 [project @ 1994-05-30 03:33:37 by jwe] jwe parents: 383 diff changeset	191
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	192 #endif

Mercurial > octave-nkf

annotate src/lex.h @ 11586:12df7854fa7c