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
|
%option nounput
%option noinput
%option yylineno
%{ /* -*- C -*- */
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2006 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2012 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include <stdio.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "opal/util/keyval/keyval_lex.h"
/*
* local functions
*/
BEGIN_C_DECLS
int opal_util_keyval_yywrap(void);
END_C_DECLS
/*
* global variables
*/
int opal_util_keyval_yynewlines = 1;
bool opal_util_keyval_parse_done = false;
char *opal_util_keyval_string = NULL;
%}
WHITE [\f\t\v ]
CHAR [A-Za-z0-9_\-\.]
%x VALUE
%x comment
%x MCA_VALUE
%%
{WHITE}*\n { opal_util_keyval_yynewlines++; return OPAL_UTIL_KEYVAL_PARSE_NEWLINE; }
#.*\n { opal_util_keyval_yynewlines++; return OPAL_UTIL_KEYVAL_PARSE_NEWLINE; }
"//".*\n { opal_util_keyval_yynewlines++; return OPAL_UTIL_KEYVAL_PARSE_NEWLINE; }
"/*" { BEGIN(comment);
return OPAL_UTIL_KEYVAL_PARSE_NEWLINE; }
<comment>[^*\n]* ; /* Eat up non '*'s */
<comment>"*"+[^*/\n]* ; /* Eat '*'s not followed by a '/' */
<comment>\n { opal_util_keyval_yynewlines++;
return OPAL_UTIL_KEYVAL_PARSE_NEWLINE; }
<comment>"*"+"/" { BEGIN(INITIAL); /* Done with Block Comment */
return OPAL_UTIL_KEYVAL_PARSE_NEWLINE; }
{WHITE}*"="{WHITE}* { BEGIN(VALUE); return OPAL_UTIL_KEYVAL_PARSE_EQUAL; }
{WHITE}+ ; /* whitespace */
{CHAR}+ { return OPAL_UTIL_KEYVAL_PARSE_SINGLE_WORD; }
<VALUE>{WHITE}*\n { BEGIN(INITIAL); return OPAL_UTIL_KEYVAL_PARSE_NEWLINE; }
<VALUE>[^\n]*[^\t \n]/[\t ]* { return OPAL_UTIL_KEYVAL_PARSE_VALUE; }
<MCA_VALUE>[^\n \t]+ { BEGIN(INITIAL); return OPAL_UTIL_KEYVAL_PARSE_VALUE; }
<MCA_VALUE>"'"[^\n]*"'"{WHITE}+ { BEGIN(INITIAL); return OPAL_UTIL_KEYVAL_PARSE_VALUE; }
<MCA_VALUE>"\""[^\n]*"\""{WHITE}+ { BEGIN(INITIAL); return OPAL_UTIL_KEYVAL_PARSE_VALUE; }
<MCA_VALUE>{WHITE}*\n { BEGIN(INITIAL); BEGIN(INITIAL); return OPAL_UTIL_KEYVAL_PARSE_NEWLINE; }
"-"?"-mca"{WHITE}+{CHAR}+{WHITE}+ {BEGIN(MCA_VALUE); return OPAL_UTIL_KEYVAL_PARSE_MCAVAR; }
"-"?"-x"{WHITE}+{CHAR}+{WHITE}*"="{WHITE}* {BEGIN(MCA_VALUE); return OPAL_UTIL_KEYVAL_PARSE_ENVEQL; }
"-"?"-x"{WHITE}+{CHAR}+{WHITE}*/[^=] { return OPAL_UTIL_KEYVAL_PARSE_ENVVAR; }
. { return OPAL_UTIL_KEYVAL_PARSE_ERROR; }
%%
/* Old flex (2.5.4a? and older) does not define a destroy function */
#if !defined(YY_FLEX_SUBMINOR_VERSION)
#define YY_FLEX_SUBMINOR_VERSION 0
#endif
#if (YY_FLEX_MAJOR_VERSION < 2) || (YY_FLEX_MAJOR_VERSION == 2 && (YY_FLEX_MINOR_VERSION < 5 || (YY_FLEX_MINOR_VERSION == 5 && YY_FLEX_SUBMINOR_VERSION < 5)))
int opal_util_keyval_yylex_destroy(void)
{
if (NULL != YY_CURRENT_BUFFER) {
yy_delete_buffer(YY_CURRENT_BUFFER);
#if defined(YY_CURRENT_BUFFER_LVALUE)
YY_CURRENT_BUFFER_LVALUE = NULL;
#else
YY_CURRENT_BUFFER = NULL;
#endif /* YY_CURRENT_BUFFER_LVALUE */
}
return YY_NULL;
}
#endif
int opal_util_keyval_yywrap(void)
{
opal_util_keyval_parse_done = true;
return 1;
}
/*
* Ensure that we have a valid yybuffer to use. Specifically, if this
* scanner is invoked a second time, finish_parsing() (above) will
* have been executed, and the current buffer will have been freed.
* Flex doesn't recognize this fact because as far as it's concerned,
* its internal state was already initialized, so it thinks it should
* have a valid buffer. Hence, here we ensure to give it a valid
* buffer.
*/
int opal_util_keyval_init_buffer(FILE *file)
{
YY_BUFFER_STATE buf = yy_create_buffer(file, YY_BUF_SIZE);
yy_switch_to_buffer(buf);
return 0;
}
|
