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
|
%{
// $Id$
// Sample lexical analysis for regular expression subset. Must be
// compiled with FLEX and an ANSI C++ compiler.
// Lexical tokens values defined by YACC.
#include "ace/Svc_Conf.h"
#include "ace/Svc_Conf_Tokens.h"
#include "ace/Svc_Conf_Lexer_Guard.h"
ACE_RCSID (ace,
Svc_Conf_l,
"$Id$")
// Keeps track of the current line for debugging output.
int yylineno = 1;
#define token(x) x
%}
%s PARAMETERS
%s NORMAL
letter [a-zA-Z_]
letter_or_digit [a-zA-Z_0-9]
digit [0-9]
ident {letter}{letter_or_digit}*
pathname ([A-Za-z\%]:)?[a-zA-Z_0-9/\%\.\\~-]+
symbol [ -~]
string (\"{symbol}*\"|\'{symbol}*\')
white_space [ \t]
newline \n
other .
%%
^#{other}*$ ; /* EMPTY */
dynamic { return token (ACE_DYNAMIC); }
static { return token (ACE_STATIC); }
suspend { return token (ACE_SUSPEND); }
resume { return token (ACE_RESUME); }
remove { return token (ACE_REMOVE); }
stream { return token (ACE_USTREAM); }
Module { return token (ACE_MODULE_T); }
Service_Object { return token (ACE_SVC_OBJ_T); }
STREAM { return token (ACE_STREAM_T); }
active { return token (ACE_ACTIVE); }
inactive { return token (ACE_INACTIVE); }
":" { return token (':'); }
"*" { return token ('*'); }
"(" { return token ('('); }
")" { return token (')'); }
"{" { return token ('{'); }
"}" { return token ('}'); }
{string} {
// Check for first type of string, i.e.,
// "double quotes" delimited.
ACE_TCHAR *s = ACE_OS::strrchr (yytext, '"');
if (s == 0)
// Check for second type of string, i.e.,
// 'single quotes' delimited.
s = ACE_OS::strrchr (yytext, '\'');
ACE_ASSERT (s != 0);
// Eliminate the opening and closing double or
// single quotes.
*s = '\0';
yyleng -= 1;
yylval->ident_ = ACE_SVC_CONF_PARAM->obstack.copy (yytext + 1, yyleng);
return token (ACE_STRING); }
{ident} {
yylval->ident_ = ACE_SVC_CONF_PARAM->obstack.copy (yytext, yyleng);
return token (ACE_IDENT);
}
{pathname} {
yylval->ident_ = ACE_SVC_CONF_PARAM->obstack.copy (yytext, yyleng);
return token (ACE_PATHNAME);
}
{white_space}+ ; /* EMPTY */
{newline} { ACE_SVC_CONF_PARAM->yylineno++; ace_yylineno++; }
{other} {
ACE_ERROR ((LM_ERROR,
ACE_LIB_TEXT ("unknown character = (%d"),
*yytext));
if (ACE_OS::ace_isprint (*yytext))
ACE_ERROR ((LM_ERROR, ACE_LIB_TEXT ("|%c"), *yytext));
ACE_ERROR ((LM_ERROR, ACE_LIB_TEXT (")\n")));
}
<<EOF>> { yyterminate(); }
%%
int
yywrap (void)
{
::fflush (yyin);
yytext[0] = '#';
yyleng = 0;
return 1;
}
void
yy_push_buffer (FILE *file, yy_buffer_state *&buffer)
{
// External synchronization is required.
if (buffer == 0)
buffer = yy_create_buffer (file, YY_BUF_SIZE);
yy_switch_to_buffer (buffer);
}
void
yy_push_buffer (const ACE_TCHAR *directive, yy_buffer_state *&buffer)
{
// External synchronization is required.
// yyparse() may invoke yylex() multiple times when parsing
// a single directive. Prevent a new buffer from created during
// each call to yylex().
if (YY_CURRENT_BUFFER != 0
&& directive == YY_CURRENT_BUFFER->yy_ch_buf)
return;
if (buffer == 0)
{
// yy_scan_string() already switches the buffer so there is
// no need to explicitly make the switch.
buffer = yy_scan_string (directive);
}
else
yy_switch_to_buffer (buffer);
}
void
yy_pop_buffer (yy_buffer_state *buffer)
{
// External synchronization is required.
yy_switch_to_buffer (buffer);
}
|
