1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/*
-*- mode: c++; c-basic-offset:4 -*-
This file is part of libdap, A C++ implementation of the OPeNDAP Data
Access Protocol.
Copyright (c) 2002,2003 OPeNDAP, Inc.
Author: James Gallagher <jgallagher@opendap.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
(c) COPYRIGHT URI/MIT 1994-1996,1998,1999
*/
/*
Scanner for the Error object. It recognizes the five keywords in the
persistent representation of the Error object plus some syntactic sugar
(`=', `{', ...). The object's persistent representation uses a keyword =
value notation, where the values are quoted strings or integers.
The scanner is not reentrant, but can share name spaces with other
scanners. It must be processed by GNU's flex scanner generator.
*/
%{
#include "config_dap.h"
static char rcsid[] not_used = {"$Id$"};
#include <cstdlib>
#include <cassert>
#include <cstring>
#include <string>
#include "parser.h"
#include "Error.tab.hh"
using namespace libdap;
#ifndef YY_PROTO
#define YY_PROTO(proto) proto
#endif
//#define YY_NO_UNPUT
#define YY_DECL int Errorlex YY_PROTO(( void ))
#define YY_FATAL_ERROR(msg) {\
throw(Error(string("Error scanning the error response: ") + string(msg))); \
yy_fatal_error(msg); /* see das.lex */ \
}
int error_line_num = 1;
static int start_line; /* used in quote and comment error handlers */
void store_integer();
void store_string();
%}
%option noyywrap
%option nounput
%option noinput
%option 8bit
%option prefix="Error"
%option outfile="lex.Error.cc"
%x quote
%x comment
SCAN_INT [0-9]+
SCAN_ERROR error|Error|ERROR
SCAN_CODE code|Code|CODE
SCAN_MSG message|Message|MESSAGE
SCAN_PTYPE program_type|ProgramType|PROGRAM_TYPE|Program_Type
SCAN_PROGRAM program|Program|PROGRAM
NEVER [^a-zA-Z0-9_/.+\-{}:;,]
%%
{SCAN_ERROR} store_string(); return SCAN_ERROR;
{SCAN_CODE} store_string(); return SCAN_CODE;
{SCAN_MSG} store_string(); return SCAN_MSG;
{SCAN_INT} store_integer(); return SCAN_INT;
"{" return (int)*yytext;
"}" return (int)*yytext;
";" return (int)*yytext;
"=" return (int)*yytext;
[ \t]+
\n ++error_line_num;
<INITIAL><<EOF>> yy_init = 1; error_line_num = 1; yyterminate();
"#" BEGIN(comment);
<comment>[^\n]*
<comment>\n ++error_line_num; BEGIN(INITIAL);
<comment><<EOF>> yy_init = 1; error_line_num = 1; yyterminate();
\" BEGIN(quote); start_line = error_line_num; yymore();
<quote>[^"\n\\]* yymore();
<quote>[^"\n\\]*\n yymore(); ++error_line_num;
<quote>\\. yymore();
<quote>\" {
BEGIN(INITIAL);
store_string();
return SCAN_STR;
}
<quote><<EOF>> {
char msg[256];
snprintf(msg, 255,
"Unterminated quote (starts on line %d)\n",
start_line);
YY_FATAL_ERROR(msg);
}
{NEVER} {
if (yytext) { /* suppress msgs about `' chars */
fprintf(stderr, "Character `%c' is not", *yytext);
fprintf(stderr, " allowed (except within");
fprintf(stderr, " quotes) and has been ignored\n");
}
}
%%
// These three glue routines enable DDS to reclaim the memory used to parse a
// DDS off the wire. They are here because this file can see the YY_*
// symbols; the file DDS.cc cannot.
void *
Error_buffer(FILE *fp)
{
return (void *)Error_create_buffer(fp, YY_BUF_SIZE);
}
void
Error_switch_to_buffer(void *buf)
{
Error_switch_to_buffer((YY_BUFFER_STATE)buf);
}
void
Error_delete_buffer(void *buf)
{
Error_delete_buffer((YY_BUFFER_STATE)buf);
}
void
store_integer()
{
Errorlval.integer = atoi(yytext);
}
void
store_string()
{
Errorlval.string = yytext;
}
|
