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genksyms: Simplify lexer 

The V2_TOKENS state is active all the time.

Signed-off-by: Michal Marek <mmarek@suse.cz>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Michal Marek 2011-01-20 16:19:58 +01:00
Родитель 9c281f13b6
Коммит 95f1d639ad
2 изменённых файлов: 117 добавлений и 132 удалений
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238
scripts/genksyms/lex.c_shipped
Просмотреть файл

@ -455,16 +455,16 @@ struct yy_trans_info
flex_int32_t yy_verify;
flex_int32_t yy_nxt;
};
static yyconst flex_int16_t yy_accept[76] =
static yyconst flex_int16_t yy_accept[73] =
{ 0,
0, 0, 0, 0, 14, 12, 4, 3, 12, 7,
12, 12, 7, 12, 12, 12, 12, 12, 9, 9,
12, 12, 12, 4, 0, 5, 0, 7, 0, 6,
0, 0, 0, 0, 0, 0, 2, 8, 10, 10,
9, 0, 0, 9, 9, 0, 9, 0, 0, 11,
0, 0, 0, 10, 0, 10, 9, 9, 0, 0,
0, 0, 0, 0, 0, 10, 10, 0, 0, 0,
0, 0, 0, 1, 0
0, 0, 14, 12, 4, 3, 12, 7, 12, 12,
12, 12, 12, 9, 9, 12, 12, 7, 12, 12,
4, 0, 5, 0, 7, 8, 0, 6, 0, 0,
10, 10, 9, 0, 0, 9, 9, 0, 9, 0,
0, 0, 0, 2, 0, 0, 11, 0, 10, 0,
10, 9, 9, 0, 0, 0, 10, 10, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 0
} ;
static yyconst flex_int32_t yy_ec[256] =
@ -506,108 +506,104 @@ static yyconst flex_int32_t yy_meta[29] =
8, 7, 3, 3, 3, 1, 3, 1
} ;
static yyconst flex_int16_t yy_base[88] =
static yyconst flex_int16_t yy_base[85] =
{ 0,
0, 147, 21, 140, 145, 284, 39, 284, 26, 0,
32, 126, 40, 44, 115, 35, 36, 46, 50, 53,
39, 61, 54, 79, 65, 284, 0, 0, 66, 284,
0, 119, 79, 75, 123, 104, 284, 284, 107, 0,
79, 73, 76, 76, 66, 0, 0, 85, 86, 284,
133, 83, 91, 284, 99, 147, 284, 114, 122, 70,
107, 141, 172, 151, 135, 181, 284, 137, 114, 157,
149, 48, 45, 284, 284, 208, 214, 222, 230, 238,
246, 250, 255, 256, 261, 267, 275
0, 145, 150, 266, 27, 266, 25, 0, 131, 23,
23, 16, 23, 39, 31, 25, 39, 60, 22, 65,
57, 43, 266, 0, 0, 266, 61, 266, 0, 128,
74, 0, 113, 59, 62, 113, 52, 0, 0, 72,
66, 110, 100, 266, 73, 74, 266, 70, 266, 90,
103, 266, 84, 129, 108, 113, 143, 266, 107, 66,
118, 137, 168, 120, 80, 91, 145, 143, 83, 41,
266, 266, 190, 196, 204, 212, 220, 228, 232, 237,
238, 243, 249, 257
} ;
static yyconst flex_int16_t yy_def[88] =
static yyconst flex_int16_t yy_def[85] =
{ 0,
75, 1, 1, 3, 75, 75, 75, 75, 76, 77,
78, 75, 77, 79, 75, 75, 75, 75, 75, 19,
75, 75, 75, 75, 76, 75, 80, 77, 78, 75,
81, 75, 76, 78, 79, 79, 75, 75, 75, 39,
19, 82, 83, 75, 75, 84, 20, 76, 78, 75,
79, 51, 85, 75, 75, 75, 75, 84, 79, 51,
79, 79, 79, 51, 75, 75, 75, 86, 79, 63,
86, 87, 87, 75, 0, 75, 75, 75, 75, 75,
75, 75, 75, 75, 75, 75, 75
72, 1, 72, 72, 72, 72, 73, 74, 72, 72,
75, 72, 72, 72, 14, 72, 72, 74, 72, 76,
72, 73, 72, 77, 74, 72, 75, 72, 78, 72,
72, 31, 14, 79, 80, 72, 72, 81, 15, 73,
75, 76, 76, 72, 73, 75, 72, 82, 72, 72,
72, 72, 81, 76, 54, 72, 72, 72, 76, 54,
76, 76, 76, 54, 83, 76, 63, 83, 84, 84,
72, 0, 72, 72, 72, 72, 72, 72, 72, 72,
72, 72, 72, 72
} ;
static yyconst flex_int16_t yy_nxt[313] =
static yyconst flex_int16_t yy_nxt[295] =
{ 0,
6, 7, 8, 7, 9, 6, 10, 6, 6, 11,
6, 6, 12, 6, 6, 6, 6, 6, 6, 10,
10, 10, 13, 10, 10, 6, 10, 6, 15, 16,
26, 15, 17, 18, 19, 20, 20, 21, 15, 22,
24, 30, 24, 38, 33, 36, 37, 74, 23, 34,
74, 27, 38, 38, 38, 38, 38, 31, 32, 39,
39, 39, 40, 41, 41, 42, 47, 47, 47, 26,
43, 38, 44, 45, 46, 30, 44, 75, 38, 38,
24, 38, 24, 26, 30, 40, 55, 55, 57, 26,
27, 31, 57, 43, 35, 30, 64, 64, 64, 57,
4, 5, 6, 5, 7, 4, 8, 9, 10, 11,
9, 12, 13, 14, 15, 15, 16, 9, 17, 8,
8, 8, 18, 8, 8, 4, 8, 19, 21, 23,
21, 26, 28, 26, 26, 30, 31, 31, 31, 26,
26, 26, 26, 71, 39, 39, 39, 23, 29, 26,
24, 32, 33, 33, 34, 72, 26, 26, 21, 35,
21, 36, 37, 38, 40, 36, 43, 44, 24, 41,
28, 32, 50, 50, 52, 28, 23, 23, 52, 35,
56, 56, 44, 28, 42, 71, 29, 31, 31, 31,
42, 29, 59, 44, 48, 49, 49, 24, 24, 29,
31, 65, 65, 75, 27, 36, 37, 35, 59, 37,
27, 31, 56, 56, 56, 59, 37, 51, 52, 52,
39, 39, 39, 59, 37, 37, 68, 53, 54, 54,
69, 50, 38, 54, 59, 37, 44, 45, 32, 37,
44, 35, 59, 37, 75, 14, 60, 60, 66, 66,
66, 37, 14, 72, 75, 61, 62, 63, 59, 61,
56, 56, 56, 69, 64, 64, 64, 69, 67, 67,
75, 75, 75, 67, 37, 35, 75, 75, 75, 61,
62, 75, 75, 61, 75, 70, 70, 70, 75, 75,
75, 70, 70, 70, 66, 66, 66, 75, 75, 75,
49, 43, 44, 51, 51, 51, 36, 37, 59, 44,
36, 65, 44, 54, 55, 55, 51, 51, 51, 59,
44, 64, 64, 64, 58, 58, 57, 57, 57, 58,
59, 44, 42, 64, 64, 64, 52, 72, 59, 44,
47, 66, 60, 60, 42, 44, 59, 69, 26, 72,
20, 61, 62, 63, 72, 61, 57, 57, 57, 66,
72, 72, 72, 66, 49, 49, 72, 61, 62, 49,
44, 61, 72, 72, 72, 72, 72, 72, 72, 72,
72, 67, 67, 67, 72, 72, 72, 67, 67, 67,
22, 22, 22, 22, 22, 22, 22, 22, 25, 72,
75, 75, 54, 54, 75, 75, 75, 54, 25, 25,
25, 25, 25, 25, 25, 25, 28, 75, 75, 28,
28, 28, 29, 29, 29, 29, 29, 29, 29, 29,
35, 35, 35, 35, 35, 35, 35, 35, 48, 75,
48, 48, 48, 48, 48, 48, 49, 75, 49, 49,
49, 49, 49, 49, 42, 42, 75, 42, 56, 75,
56, 58, 58, 58, 66, 75, 66, 71, 71, 71,
71, 71, 71, 71, 71, 73, 73, 73, 73, 73,
73, 73, 73, 5, 75, 75, 75, 75, 75, 75,
75, 75, 75, 75, 75, 75, 75, 75, 75, 75,
72, 25, 25, 25, 27, 27, 27, 27, 27, 27,
27, 27, 42, 42, 42, 42, 42, 42, 42, 42,
45, 72, 45, 45, 45, 45, 45, 45, 46, 72,
46, 46, 46, 46, 46, 46, 34, 34, 72, 34,
51, 72, 51, 53, 53, 53, 57, 72, 57, 68,
68, 68, 68, 68, 68, 68, 68, 70, 70, 70,
70, 70, 70, 70, 70, 3, 72, 72, 72, 72,
72, 72, 72, 72, 72, 72, 72, 72, 72, 72,
72, 72, 72, 72, 72, 72, 72, 72, 72, 72,
72, 72, 72, 72
75, 75, 75, 75, 75, 75, 75, 75, 75, 75,
75, 75
} ;
static yyconst flex_int16_t yy_chk[313] =
static yyconst flex_int16_t yy_chk[295] =
{ 0,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 3, 3,
9, 3, 3, 3, 3, 3, 3, 3, 3, 3,
7, 11, 7, 16, 13, 14, 14, 73, 3, 13,
72, 9, 16, 17, 17, 21, 21, 11, 18, 18,
18, 18, 19, 19, 19, 19, 20, 20, 20, 25,
19, 23, 19, 19, 19, 29, 19, 20, 22, 22,
24, 23, 24, 33, 34, 42, 43, 43, 45, 48,
25, 29, 45, 42, 60, 49, 52, 52, 52, 44,
1, 1, 1, 1, 1, 1, 1, 1, 5, 7,
5, 10, 11, 12, 12, 13, 13, 13, 13, 19,
10, 16, 16, 70, 15, 15, 15, 22, 11, 19,
7, 14, 14, 14, 14, 15, 17, 17, 21, 14,
21, 14, 14, 14, 18, 14, 20, 20, 22, 18,
27, 34, 35, 35, 37, 41, 40, 45, 37, 34,
48, 48, 65, 46, 65, 69, 27, 31, 31, 31,
60, 41, 66, 66, 31, 31, 31, 40, 45, 46,
34, 53, 53, 41, 33, 36, 36, 52, 61, 61,
48, 49, 55, 55, 55, 69, 69, 36, 36, 36,
39, 39, 39, 59, 59, 35, 59, 39, 39, 39,
61, 32, 15, 39, 51, 51, 58, 58, 12, 68,
58, 68, 62, 62, 5, 4, 51, 51, 65, 65,
65, 71, 2, 71, 0, 51, 51, 51, 70, 51,
56, 56, 56, 62, 64, 64, 64, 62, 56, 56,
0, 0, 0, 56, 63, 64, 0, 0, 0, 70,
70, 0, 0, 70, 0, 63, 63, 63, 0, 0,
0, 63, 63, 63, 66, 66, 66, 0, 0, 0,
31, 43, 43, 50, 50, 50, 53, 53, 59, 59,
53, 59, 42, 43, 43, 43, 51, 51, 51, 61,
61, 55, 55, 55, 51, 51, 56, 56, 56, 51,
54, 54, 55, 64, 64, 64, 36, 33, 62, 62,
30, 61, 54, 54, 64, 68, 67, 68, 9, 3,
2, 54, 54, 54, 0, 54, 57, 57, 57, 62,
0, 0, 0, 62, 57, 57, 0, 67, 67, 57,
63, 67, 0, 0, 0, 0, 0, 0, 0, 0,
0, 63, 63, 63, 0, 0, 0, 63, 63, 63,
73, 73, 73, 73, 73, 73, 73, 73, 74, 0,
0, 0, 66, 66, 0, 0, 0, 66, 76, 76,
76, 76, 76, 76, 76, 76, 77, 0, 0, 77,
77, 77, 78, 78, 78, 78, 78, 78, 78, 78,
79, 79, 79, 79, 79, 79, 79, 79, 80, 0,
80, 80, 80, 80, 80, 80, 81, 0, 81, 81,
81, 81, 81, 81, 82, 82, 0, 82, 83, 0,
83, 84, 84, 84, 85, 0, 85, 86, 86, 86,
86, 86, 86, 86, 86, 87, 87, 87, 87, 87,
87, 87, 87, 75, 75, 75, 75, 75, 75, 75,
75, 75, 75, 75, 75, 75, 75, 75, 75, 75,
0, 74, 74, 74, 75, 75, 75, 75, 75, 75,
75, 75, 76, 76, 76, 76, 76, 76, 76, 76,
77, 0, 77, 77, 77, 77, 77, 77, 78, 0,
78, 78, 78, 78, 78, 78, 79, 79, 0, 79,
80, 0, 80, 81, 81, 81, 82, 0, 82, 83,
83, 83, 83, 83, 83, 83, 83, 84, 84, 84,
84, 84, 84, 84, 84, 72, 72, 72, 72, 72,
72, 72, 72, 72, 72, 72, 72, 72, 72, 72,
72, 72, 72, 72, 72, 72, 72, 72, 72, 72,
72, 72, 72, 72
75, 75, 75, 75, 75, 75, 75, 75, 75, 75,
75, 75
} ;
static yy_state_type yy_last_accepting_state;
@ -618,8 +614,8 @@ int yy_flex_debug = 1;
static yyconst flex_int16_t yy_rule_linenum[13] =
{ 0,
71, 72, 73, 76, 79, 80, 81, 87, 88, 89,
91, 94
67, 68, 69, 72, 75, 76, 77, 83, 84, 85,
87, 90
} ;
/* The intent behind this definition is that it'll catch
@ -666,15 +662,11 @@ char *yytext;
and then we categorize those basic tokens in the second stage. */
#define YY_DECL static int yylex1(void)
/* Version 2 checksumming does proper tokenization; version 1 wasn't
quite so pedantic. */
/* We don't do multiple input files. */
#define YY_NO_INPUT 1
#line 675 "scripts/genksyms/lex.c"
#line 668 "scripts/genksyms/lex.c"
#define INITIAL 0
#define V2_TOKENS 1
#ifndef YY_NO_UNISTD_H
/* Special case for "unistd.h", since it is non-ANSI. We include it way
@ -917,12 +909,12 @@ YY_DECL
register int yy_act;
/* %% [7.0] user's declarations go here */
#line 67 "scripts/genksyms/lex.l"
#line 63 "scripts/genksyms/lex.l"
/* Keep track of our location in the original source files. */
#line 926 "scripts/genksyms/lex.c"
#line 918 "scripts/genksyms/lex.c"
if ( !(yy_init) )
{
@ -986,13 +978,13 @@ yy_match:
while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
{
yy_current_state = (int) yy_def[yy_current_state];
if ( yy_current_state >= 76 )
if ( yy_current_state >= 73 )
yy_c = yy_meta[(unsigned int) yy_c];
}
yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
++yy_cp;
}
while ( yy_base[yy_current_state] != 284 );
while ( yy_base[yy_current_state] != 266 );
yy_find_action:
/* %% [10.0] code to find the action number goes here */
@ -1040,42 +1032,42 @@ do_action: /* This label is used only to access EOF actions. */
case 1:
/* rule 1 can match eol */
YY_RULE_SETUP
#line 71 "scripts/genksyms/lex.l"
#line 67 "scripts/genksyms/lex.l"
return FILENAME;
YY_BREAK
case 2:
/* rule 2 can match eol */
YY_RULE_SETUP
#line 72 "scripts/genksyms/lex.l"
#line 68 "scripts/genksyms/lex.l"
cur_line++;
YY_BREAK
case 3:
/* rule 3 can match eol */
YY_RULE_SETUP
#line 73 "scripts/genksyms/lex.l"
#line 69 "scripts/genksyms/lex.l"
cur_line++;
YY_BREAK
/* Ignore all other whitespace. */
case 4:
YY_RULE_SETUP
#line 76 "scripts/genksyms/lex.l"
#line 72 "scripts/genksyms/lex.l"
;
YY_BREAK
case 5:
/* rule 5 can match eol */
YY_RULE_SETUP
#line 79 "scripts/genksyms/lex.l"
#line 75 "scripts/genksyms/lex.l"
return STRING;
YY_BREAK
case 6:
/* rule 6 can match eol */
YY_RULE_SETUP
#line 80 "scripts/genksyms/lex.l"
#line 76 "scripts/genksyms/lex.l"
return CHAR;
YY_BREAK
case 7:
YY_RULE_SETUP
#line 81 "scripts/genksyms/lex.l"
#line 77 "scripts/genksyms/lex.l"
return IDENT;
YY_BREAK
/* The Pedant requires that the other C multi-character tokens be
@ -1084,38 +1076,37 @@ return IDENT;
around them properly. */
case 8:
YY_RULE_SETUP
#line 87 "scripts/genksyms/lex.l"
#line 83 "scripts/genksyms/lex.l"
return OTHER;
YY_BREAK
case 9:
YY_RULE_SETUP
#line 88 "scripts/genksyms/lex.l"
#line 84 "scripts/genksyms/lex.l"
return INT;
YY_BREAK
case 10:
YY_RULE_SETUP
#line 89 "scripts/genksyms/lex.l"
#line 85 "scripts/genksyms/lex.l"
return REAL;
YY_BREAK
case 11:
YY_RULE_SETUP
#line 91 "scripts/genksyms/lex.l"
#line 87 "scripts/genksyms/lex.l"
return DOTS;
YY_BREAK
/* All other tokens are single characters. */
case 12:
YY_RULE_SETUP
#line 94 "scripts/genksyms/lex.l"
#line 90 "scripts/genksyms/lex.l"
return yytext[0];
YY_BREAK
case 13:
YY_RULE_SETUP
#line 97 "scripts/genksyms/lex.l"
#line 93 "scripts/genksyms/lex.l"
ECHO;
YY_BREAK
#line 1117 "scripts/genksyms/lex.c"
#line 1109 "scripts/genksyms/lex.c"
case YY_STATE_EOF(INITIAL):
case YY_STATE_EOF(V2_TOKENS):
yyterminate();
case YY_END_OF_BUFFER:
@ -1428,7 +1419,7 @@ static int yy_get_next_buffer (void)
while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
{
yy_current_state = (int) yy_def[yy_current_state];
if ( yy_current_state >= 76 )
if ( yy_current_state >= 73 )
yy_c = yy_meta[(unsigned int) yy_c];
}
yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
@ -1461,11 +1452,11 @@ static int yy_get_next_buffer (void)
while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
{
yy_current_state = (int) yy_def[yy_current_state];
if ( yy_current_state >= 76 )
if ( yy_current_state >= 73 )
yy_c = yy_meta[(unsigned int) yy_c];
}
yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
yy_is_jam = (yy_current_state == 75);
yy_is_jam = (yy_current_state == 72);
return yy_is_jam ? 0 : yy_current_state;
}
@ -2251,7 +2242,7 @@ void yyfree (void * ptr )
/* %ok-for-header */
#line 97 "scripts/genksyms/lex.l"
#line 93 "scripts/genksyms/lex.l"
@ -2293,7 +2284,6 @@ yylex(void)
if (lexstate == ST_NOTSTARTED)
{
BEGIN(V2_TOKENS);
next_node = xmalloc(sizeof(*next_node));
next_node->next = NULL;
lexstate = ST_NORMAL;

11
scripts/genksyms/lex.l
Просмотреть файл

@ -55,10 +55,6 @@ CHAR L?\'([^\\\']*\\.)*[^\\\']*\'
MC_TOKEN ([~%^&*+=|<>/-]=)|(&&)|("||")|(->)|(<<)|(>>)
/* Version 2 checksumming does proper tokenization; version 1 wasn't
quite so pedantic. */
%s V2_TOKENS
/* We don't do multiple input files. */
%option noyywrap
@ -84,9 +80,9 @@ MC_TOKEN ([~%^&*+=|<>/-]=)|(&&)|("||")|(->)|(<<)|(>>)
recognized as tokens. We don't actually use them since we don't
parse expressions, but we do want whitespace to be arranged
around them properly. */
<V2_TOKENS>{MC_TOKEN} return OTHER;
<V2_TOKENS>{INT} return INT;
<V2_TOKENS>{REAL} return REAL;
{MC_TOKEN} return OTHER;
{INT} return INT;
{REAL} return REAL;
"..." return DOTS;
@ -134,7 +130,6 @@ yylex(void)
if (lexstate == ST_NOTSTARTED)
{
BEGIN(V2_TOKENS);
next_node = xmalloc(sizeof(*next_node));
next_node->next = NULL;
lexstate = ST_NORMAL;