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* src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.

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Adjust all callers.
(scanner_last_string_free): New.
This commit is contained in:
Akim Demaille
2002-06-11 21:45:49 +00:00
parent 44995b2e39
commit 4cdb01db9b
7 changed files with 858 additions and 1010 deletions
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7
ChangeLog
View File

@@ -1,3 +1,10 @@
2002-06-11 Akim Demaille <akim@epita.fr>
* src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
Adjust all callers.
(scanner_last_string_free): New.
2002-06-11 Akim Demaille <akim@epita.fr>
* src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...

1404
src/parse-gram.c
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File diff suppressed because it is too large Load Diff

140
src/parse-gram.h
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@@ -1,124 +1,70 @@
#ifndef BISON_PARSE_GRAM_H
# define BISON_PARSE_GRAM_H
/* Tokens. */
#ifndef YYTOKENTYPE
# if defined (__STDC__) || defined (__cplusplus)
/* Put the tokens into the symbol table, so that GDB and other debuggers
know about them. */
enum yytokentype {
GRAM_EOF = 0,
STRING = 258,
CHARACTER = 259,
INT = 260,
PERCENT_TOKEN = 261,
PERCENT_NTERM = 262,
PERCENT_TYPE = 263,
PERCENT_UNION = 264,
PERCENT_EXPECT = 265,
PERCENT_START = 266,
PERCENT_LEFT = 267,
PERCENT_RIGHT = 268,
PERCENT_NONASSOC = 269,
PERCENT_PREC = 270,
PERCENT_VERBOSE = 271,
PERCENT_ERROR_VERBOSE = 272,
PERCENT_OUTPUT = 273,
PERCENT_FILE_PREFIX = 274,
PERCENT_NAME_PREFIX = 275,
PERCENT_DEFINE = 276,
PERCENT_PURE_PARSER = 277,
PERCENT_DEFINES = 278,
PERCENT_YACC = 279,
PERCENT_DEBUG = 280,
PERCENT_LOCATIONS = 281,
PERCENT_NO_LINES = 282,
PERCENT_SKELETON = 283,
PERCENT_TOKEN_TABLE = 284,
TYPE = 285,
EQUAL = 286,
SEMICOLON = 287,
COLON = 288,
PIPE = 289,
ID = 290,
PERCENT_PERCENT = 291,
PROLOGUE = 292,
EPILOGUE = 293,
BRACED_CODE = 294
};
# endif
/* POSIX requires `int' for tokens in interfaces. */
# define YYTOKENTYPE int
#endif /* !YYTOKENTYPE */
#define GRAM_EOF 0
#define STRING 258
#define CHARACTER 259
#define INT 260
#define PERCENT_TOKEN 261
#define PERCENT_NTERM 262
#define PERCENT_TYPE 263
#define PERCENT_UNION 264
#define PERCENT_EXPECT 265
#define PERCENT_START 266
#define PERCENT_LEFT 267
#define PERCENT_RIGHT 268
#define PERCENT_NONASSOC 269
#define PERCENT_PREC 270
#define PERCENT_VERBOSE 271
#define PERCENT_ERROR_VERBOSE 272
#define PERCENT_OUTPUT 273
#define PERCENT_FILE_PREFIX 274
#define PERCENT_NAME_PREFIX 275
#define PERCENT_DEFINE 276
#define PERCENT_PURE_PARSER 277
#define PERCENT_DEFINES 278
#define PERCENT_YACC 279
#define PERCENT_DEBUG 280
#define PERCENT_LOCATIONS 281
#define PERCENT_NO_LINES 282
#define PERCENT_SKELETON 283
#define PERCENT_TOKEN_TABLE 284
#define TYPE 285
#define EQUAL 286
#define SEMICOLON 287
#define COLON 288
#define PIPE 289
#define ID 290
#define PERCENT_PERCENT 291
#define PROLOGUE 292
#define EPILOGUE 293
#define BRACED_CODE 294
#ifndef YYSTYPE
#line 70 "parse-gram.y"
typedef union
{
symbol_t *symbol;
int integer;
char *string;
associativity assoc;
}
yystype;
} yystype;
# define YYSTYPE yystype
# define YYSTYPE_IS_TRIVIAL 1
#endif
#ifndef YYLTYPE
typedef struct yyltype
{
int first_line;
int first_column;
int last_line;
int last_column;
} yyltype;
# define YYLTYPE yyltype
# define YYLTYPE_IS_TRIVIAL 1
#endif
# define GRAM_EOF 0
# define STRING 257
# define CHARACTER 258
# define INT 259
# define PERCENT_TOKEN 260
# define PERCENT_NTERM 261
# define PERCENT_TYPE 262
# define PERCENT_UNION 263
# define PERCENT_EXPECT 264
# define PERCENT_START 265
# define PERCENT_LEFT 266
# define PERCENT_RIGHT 267
# define PERCENT_NONASSOC 268
# define PERCENT_PREC 269
# define PERCENT_VERBOSE 270
# define PERCENT_ERROR_VERBOSE 271
# define PERCENT_OUTPUT 272
# define PERCENT_FILE_PREFIX 273
# define PERCENT_NAME_PREFIX 274
# define PERCENT_DEFINE 275
# define PERCENT_PURE_PARSER 276
# define PERCENT_DEFINES 277
# define PERCENT_YACC 278
# define PERCENT_DEBUG 279
# define PERCENT_LOCATIONS 280
# define PERCENT_NO_LINES 281
# define PERCENT_SKELETON 282
# define PERCENT_TOKEN_TABLE 283
# define TYPE 284
# define EQUAL 285
# define SEMICOLON 286
# define COLON 287
# define PIPE 288
# define ID 289
# define PERCENT_PERCENT 290
# define PROLOGUE 291
# define EPILOGUE 292
# define BRACED_CODE 293
#endif /* not BISON_PARSE_GRAM_H */

12
src/parse-gram.y
View File

@@ -24,7 +24,7 @@
%defines
%locations
%pure-parser
%error-verbose
// %error-verbose
%defines
%name-prefix="gram_"
@@ -38,6 +38,8 @@
#include "reader.h"
#include "conflicts.h"
#define YYERROR_VERBOSE 1
/* Pass the control structure to YYPARSE and YYLEX. */
#define YYPARSE_PARAM gram_control
#define YYLEX_PARAM gram_control
@@ -120,7 +122,8 @@ int current_prec = 0;
%token PROLOGUE EPILOGUE
%token BRACED_CODE
%type <string> CHARACTER TYPE BRACED_CODE PROLOGUE EPILOGUE epilogue.opt action STRING string_content
%type <string> CHARACTER TYPE STRING string_content
BRACED_CODE PROLOGUE EPILOGUE epilogue.opt action
%type <integer> INT
%type <symbol> ID symbol string_as_id
%type <assoc> precedence_directive
@@ -140,7 +143,10 @@ directives:
directive:
grammar_directives
| PROLOGUE { prologue_augment ($1, @1.first_line); }
| PROLOGUE
{
prologue_augment ($1, @1.first_line);
}
| "%debug" { debug_flag = 1; }
| "%define" string_content string_content { muscle_insert ($2, $3); }
| "%defines" { defines_flag = 1; }

2
src/reader.h
View File

@@ -78,6 +78,8 @@ typedef struct gram_control_s
/* From the scanner. */
extern FILE *gram_in;
extern int gram__flex_debug;
void scanner_last_string_free PARAMS ((void));
void scanner_free PARAMS ((void));
# define YY_DECL \
int gram_lex (yystype *yylval, yyltype *yylloc, \

266
src/scan-gram.c
View File

@@ -689,16 +689,16 @@ int yy_flex_debug = 1;
static yyconst short int yy_rule_linenum[92] =
{ 0,
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, 143, 144, 145,
146, 148, 149, 150, 157, 160, 163, 166, 167, 170,
173, 176, 178, 184, 200, 201, 212, 224, 225, 226,
243, 251, 253, 272, 286, 288, 307, 319, 323, 324,
325, 326, 327, 328, 329, 330, 331, 346, 352, 353,
355, 373, 379, 380, 382, 400, 403, 406, 407, 418,
428, 430, 431, 433, 434, 437, 456, 462, 463, 464,
484
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, 149, 150, 151,
152, 154, 155, 156, 161, 164, 167, 170, 171, 174,
177, 180, 189, 195, 211, 212, 223, 235, 236, 237,
254, 263, 265, 285, 299, 301, 321, 333, 337, 338,
339, 340, 341, 342, 343, 344, 345, 360, 366, 367,
369, 387, 393, 394, 396, 414, 417, 420, 421, 432,
443, 445, 446, 448, 449, 452, 472, 479, 480, 481,
502
} ;
@@ -772,7 +772,6 @@ char *last_string;
do { \
obstack_1grow (&string_obstack, '\0'); \
last_string = obstack_finish (&string_obstack); \
yylval->string = last_string; \
} while (0)
#define YY_OBS_FREE \
@@ -780,6 +779,13 @@ char *last_string;
obstack_free (&string_obstack, last_string); \
} while (0)
void
scanner_last_string_free (void)
{
YY_OBS_FREE;
}
/* This is only to avoid GCC warnings. */
#define YY_USER_INIT if (yycontrol) {;};
@@ -802,7 +808,7 @@ static void handle_at PARAMS ((char *cp));
#define SC_PROLOGUE 7
#define SC_EPILOGUE 8
#line 806 "scan-gram.c"
#line 812 "scan-gram.c"
/* Macros after this point can all be overridden by user definitions in
* section 1.
@@ -964,7 +970,7 @@ YY_DECL
register char *yy_cp, *yy_bp;
register int yy_act;
#line 91 "scan-gram.l"
#line 97 "scan-gram.l"
/* At each yylex invocation, mark the current position as the
@@ -987,7 +993,7 @@ YY_DECL
/*----------------------------.
| Scanning Bison directives. |
`----------------------------*/
#line 991 "scan-gram.c"
#line 997 "scan-gram.c"
if ( yy_init )
{
@@ -1089,228 +1095,232 @@ do_action: /* This label is used only to access EOF actions. */
case 1:
YY_RULE_SETUP
#line 115 "scan-gram.l"
#line 121 "scan-gram.l"
return PERCENT_NONASSOC;
YY_BREAK
case 2:
YY_RULE_SETUP
#line 116 "scan-gram.l"
#line 122 "scan-gram.l"
return PERCENT_DEBUG;
YY_BREAK
case 3:
YY_RULE_SETUP
#line 117 "scan-gram.l"
#line 123 "scan-gram.l"
return PERCENT_DEFINE;
YY_BREAK
case 4:
YY_RULE_SETUP
#line 118 "scan-gram.l"
#line 124 "scan-gram.l"
return PERCENT_DEFINES;
YY_BREAK
case 5:
YY_RULE_SETUP
#line 119 "scan-gram.l"
#line 125 "scan-gram.l"
return PERCENT_ERROR_VERBOSE;
YY_BREAK
case 6:
YY_RULE_SETUP
#line 120 "scan-gram.l"
#line 126 "scan-gram.l"
return PERCENT_EXPECT;
YY_BREAK
case 7:
YY_RULE_SETUP
#line 121 "scan-gram.l"
#line 127 "scan-gram.l"
return PERCENT_FILE_PREFIX;
YY_BREAK
case 8:
YY_RULE_SETUP
#line 122 "scan-gram.l"
#line 128 "scan-gram.l"
return PERCENT_YACC;
YY_BREAK
case 9:
YY_RULE_SETUP
#line 123 "scan-gram.l"
#line 129 "scan-gram.l"
return PERCENT_LEFT;
YY_BREAK
case 10:
YY_RULE_SETUP
#line 124 "scan-gram.l"
#line 130 "scan-gram.l"
return PERCENT_LOCATIONS;
YY_BREAK
case 11:
YY_RULE_SETUP
#line 125 "scan-gram.l"
#line 131 "scan-gram.l"
return PERCENT_NAME_PREFIX;
YY_BREAK
case 12:
YY_RULE_SETUP
#line 126 "scan-gram.l"
#line 132 "scan-gram.l"
return PERCENT_NO_LINES;
YY_BREAK
case 13:
YY_RULE_SETUP
#line 127 "scan-gram.l"
#line 133 "scan-gram.l"
return PERCENT_NONASSOC;
YY_BREAK
case 14:
YY_RULE_SETUP
#line 128 "scan-gram.l"
#line 134 "scan-gram.l"
return PERCENT_NTERM;
YY_BREAK
case 15:
YY_RULE_SETUP
#line 129 "scan-gram.l"
#line 135 "scan-gram.l"
return PERCENT_OUTPUT;
YY_BREAK
case 16:
YY_RULE_SETUP
#line 130 "scan-gram.l"
#line 136 "scan-gram.l"
return PERCENT_PREC;
YY_BREAK
case 17:
YY_RULE_SETUP
#line 131 "scan-gram.l"
#line 137 "scan-gram.l"
return PERCENT_PURE_PARSER;
YY_BREAK
case 18:
YY_RULE_SETUP
#line 132 "scan-gram.l"
#line 138 "scan-gram.l"
return PERCENT_RIGHT;
YY_BREAK
case 19:
YY_RULE_SETUP
#line 133 "scan-gram.l"
#line 139 "scan-gram.l"
return PERCENT_SKELETON;
YY_BREAK
case 20:
YY_RULE_SETUP
#line 134 "scan-gram.l"
#line 140 "scan-gram.l"
return PERCENT_START;
YY_BREAK
case 21:
YY_RULE_SETUP
#line 135 "scan-gram.l"
#line 141 "scan-gram.l"
return PERCENT_TOKEN;
YY_BREAK
case 22:
YY_RULE_SETUP
#line 136 "scan-gram.l"
#line 142 "scan-gram.l"
return PERCENT_TOKEN;
YY_BREAK
case 23:
YY_RULE_SETUP
#line 137 "scan-gram.l"
#line 143 "scan-gram.l"
return PERCENT_TOKEN_TABLE;
YY_BREAK
case 24:
YY_RULE_SETUP
#line 138 "scan-gram.l"
#line 144 "scan-gram.l"
return PERCENT_TYPE;
YY_BREAK
case 25:
YY_RULE_SETUP
#line 139 "scan-gram.l"
#line 145 "scan-gram.l"
return PERCENT_UNION;
YY_BREAK
case 26:
YY_RULE_SETUP
#line 140 "scan-gram.l"
#line 146 "scan-gram.l"
return PERCENT_VERBOSE;
YY_BREAK
case 27:
YY_RULE_SETUP
#line 141 "scan-gram.l"
#line 147 "scan-gram.l"
return PERCENT_YACC;
YY_BREAK
case 28:
YY_RULE_SETUP
#line 143 "scan-gram.l"
#line 149 "scan-gram.l"
return EQUAL;
YY_BREAK
case 29:
YY_RULE_SETUP
#line 144 "scan-gram.l"
#line 150 "scan-gram.l"
return COLON;
YY_BREAK
case 30:
YY_RULE_SETUP
#line 145 "scan-gram.l"
#line 151 "scan-gram.l"
return PIPE;
YY_BREAK
case 31:
YY_RULE_SETUP
#line 146 "scan-gram.l"
#line 152 "scan-gram.l"
return SEMICOLON;
YY_BREAK
case 32:
YY_RULE_SETUP
#line 148 "scan-gram.l"
#line 154 "scan-gram.l"
YY_LINES; YY_STEP;
YY_BREAK
case 33:
YY_RULE_SETUP
#line 149 "scan-gram.l"
#line 155 "scan-gram.l"
YY_STEP;
YY_BREAK
case 34:
YY_RULE_SETUP
#line 150 "scan-gram.l"
#line 156 "scan-gram.l"
{
YY_OBS_INIT; YY_OBS_GROW; YY_OBS_FINISH;
yylval->symbol = getsym (last_string);
YY_OBS_FREE;
yylval->symbol = getsym (yytext);
return ID;
}
YY_BREAK
case 35:
YY_RULE_SETUP
#line 157 "scan-gram.l"
#line 161 "scan-gram.l"
yylval->integer = strtol (yytext, 0, 10); return INT;
YY_BREAK
/* Characters. We don't check there is only one. */
case 36:
YY_RULE_SETUP
#line 160 "scan-gram.l"
#line 164 "scan-gram.l"
YY_OBS_INIT; YY_OBS_GROW; yy_push_state (SC_ESCAPED_CHARACTER);
YY_BREAK
/* Strings. */
case 37:
YY_RULE_SETUP
#line 163 "scan-gram.l"
#line 167 "scan-gram.l"
YY_OBS_INIT; YY_OBS_GROW; yy_push_state (SC_ESCAPED_STRING);
YY_BREAK
/* Comments. */
case 38:
YY_RULE_SETUP
#line 166 "scan-gram.l"
#line 170 "scan-gram.l"
yy_push_state (SC_COMMENT);
YY_BREAK
case 39:
YY_RULE_SETUP
#line 167 "scan-gram.l"
#line 171 "scan-gram.l"
YY_STEP;
YY_BREAK
/* Prologue. */
case 40:
YY_RULE_SETUP
#line 170 "scan-gram.l"
#line 174 "scan-gram.l"
YY_OBS_INIT; yy_push_state (SC_PROLOGUE);
YY_BREAK
/* Code in between braces. */
case 41:
YY_RULE_SETUP
#line 173 "scan-gram.l"
#line 177 "scan-gram.l"
YY_OBS_INIT; YY_OBS_GROW; ++braces_level; yy_push_state (SC_BRACED_CODE);
YY_BREAK
/* A type. */
case 42:
YY_RULE_SETUP
#line 176 "scan-gram.l"
YY_OBS_INIT; obstack_grow (&string_obstack, yytext + 1, yyleng - 2); YY_OBS_FINISH; return TYPE;
#line 180 "scan-gram.l"
{
YY_OBS_INIT;
obstack_grow (&string_obstack, yytext + 1, yyleng - 2);
YY_OBS_FINISH;
yylval->string = last_string;
return TYPE;
}
YY_BREAK
case 43:
YY_RULE_SETUP
#line 178 "scan-gram.l"
#line 189 "scan-gram.l"
{
if (++percent_percent_count == 2)
yy_push_state (SC_EPILOGUE);
@@ -1319,7 +1329,7 @@ YY_RULE_SETUP
YY_BREAK
case 44:
YY_RULE_SETUP
#line 184 "scan-gram.l"
#line 195 "scan-gram.l"
{
LOCATION_PRINT (stderr, *yylloc);
fprintf (stderr, ": invalid character: `%c'\n", *yytext);
@@ -1336,12 +1346,12 @@ YY_RULE_SETUP
case 45:
YY_RULE_SETUP
#line 200 "scan-gram.l"
#line 211 "scan-gram.l"
obstack_sgrow (&string_obstack, "@<:@");
YY_BREAK
case 46:
YY_RULE_SETUP
#line 201 "scan-gram.l"
#line 212 "scan-gram.l"
obstack_sgrow (&string_obstack, "@:>@");
YY_BREAK
@@ -1352,7 +1362,7 @@ obstack_sgrow (&string_obstack, "@:>@");
case 47:
YY_RULE_SETUP
#line 212 "scan-gram.l"
#line 223 "scan-gram.l"
{ /* End of the comment. */
if (yy_top_state () == INITIAL)
{
@@ -1367,21 +1377,21 @@ YY_RULE_SETUP
YY_BREAK
case 48:
YY_RULE_SETUP
#line 224 "scan-gram.l"
#line 235 "scan-gram.l"
if (yy_top_state () != INITIAL) YY_OBS_GROW;
YY_BREAK
case 49:
YY_RULE_SETUP
#line 225 "scan-gram.l"
#line 236 "scan-gram.l"
if (yy_top_state () != INITIAL) YY_OBS_GROW; YY_LINES;
YY_BREAK
case 50:
YY_RULE_SETUP
#line 226 "scan-gram.l"
#line 237 "scan-gram.l"
/* Stray `*'. */if (yy_top_state () != INITIAL) YY_OBS_GROW;
YY_BREAK
case YY_STATE_EOF(SC_COMMENT):
#line 228 "scan-gram.l"
#line 239 "scan-gram.l"
{
LOCATION_PRINT (stderr, *yylloc);
fprintf (stderr, ": unexpected end of file in a comment\n");
@@ -1397,32 +1407,34 @@ case YY_STATE_EOF(SC_COMMENT):
case 51:
YY_RULE_SETUP
#line 243 "scan-gram.l"
#line 254 "scan-gram.l"
{
assert (yy_top_state () == INITIAL);
YY_OBS_GROW;
YY_OBS_FINISH;
yylval->string = last_string;
yy_pop_state ();
return STRING;
}
YY_BREAK
case 52:
YY_RULE_SETUP
#line 251 "scan-gram.l"
#line 263 "scan-gram.l"
YY_OBS_GROW;
YY_BREAK
case 53:
YY_RULE_SETUP
#line 253 "scan-gram.l"
#line 265 "scan-gram.l"
obstack_1grow (&string_obstack, '\n'); YY_LINES;
YY_BREAK
case YY_STATE_EOF(SC_ESCAPED_STRING):
#line 255 "scan-gram.l"
#line 267 "scan-gram.l"
{
LOCATION_PRINT (stderr, *yylloc);
fprintf (stderr, ": unexpected end of file in a string\n");
assert (yy_top_state () == INITIAL);
YY_OBS_FINISH;
yylval->string = last_string;
yy_pop_state ();
return STRING;
}
@@ -1436,7 +1448,7 @@ case YY_STATE_EOF(SC_ESCAPED_STRING):
case 54:
YY_RULE_SETUP
#line 272 "scan-gram.l"
#line 285 "scan-gram.l"
{
YY_OBS_GROW;
assert (yy_top_state () == INITIAL);
@@ -1453,21 +1465,22 @@ YY_RULE_SETUP
YY_BREAK
case 55:
YY_RULE_SETUP
#line 286 "scan-gram.l"
#line 299 "scan-gram.l"
YY_OBS_GROW;
YY_BREAK
case 56:
YY_RULE_SETUP
#line 288 "scan-gram.l"
#line 301 "scan-gram.l"
obstack_1grow (&string_obstack, '\n'); YY_LINES;
YY_BREAK
case YY_STATE_EOF(SC_ESCAPED_CHARACTER):
#line 290 "scan-gram.l"
#line 303 "scan-gram.l"
{
LOCATION_PRINT (stderr, *yylloc);
fprintf (stderr, ": unexpected end of file in a character\n");
assert (yy_top_state () == INITIAL);
YY_OBS_FINISH;
yylval->string = last_string;
yy_pop_state ();
return CHARACTER;
}
@@ -1480,7 +1493,7 @@ case YY_STATE_EOF(SC_ESCAPED_CHARACTER):
case 57:
YY_RULE_SETUP
#line 307 "scan-gram.l"
#line 321 "scan-gram.l"
{
long c = strtol (yytext + 1, 0, 8);
if (c > 255)
@@ -1495,54 +1508,54 @@ YY_RULE_SETUP
YY_BREAK
case 58:
YY_RULE_SETUP
#line 319 "scan-gram.l"
#line 333 "scan-gram.l"
{
obstack_1grow (&string_obstack, strtol (yytext + 2, 0, 16));
}
YY_BREAK
case 59:
YY_RULE_SETUP
#line 323 "scan-gram.l"
#line 337 "scan-gram.l"
obstack_1grow (&string_obstack, '\a');
YY_BREAK
case 60:
YY_RULE_SETUP
#line 324 "scan-gram.l"
#line 338 "scan-gram.l"
obstack_1grow (&string_obstack, '\b');
YY_BREAK
case 61:
YY_RULE_SETUP
#line 325 "scan-gram.l"
#line 339 "scan-gram.l"
obstack_1grow (&string_obstack, '\f');
YY_BREAK
case 62:
YY_RULE_SETUP
#line 326 "scan-gram.l"
#line 340 "scan-gram.l"
obstack_1grow (&string_obstack, '\n');
YY_BREAK
case 63:
YY_RULE_SETUP
#line 327 "scan-gram.l"
#line 341 "scan-gram.l"
obstack_1grow (&string_obstack, '\r');
YY_BREAK
case 64:
YY_RULE_SETUP
#line 328 "scan-gram.l"
#line 342 "scan-gram.l"
obstack_1grow (&string_obstack, '\t');
YY_BREAK
case 65:
YY_RULE_SETUP
#line 329 "scan-gram.l"
#line 343 "scan-gram.l"
obstack_1grow (&string_obstack, '\v');
YY_BREAK
case 66:
YY_RULE_SETUP
#line 330 "scan-gram.l"
#line 344 "scan-gram.l"
obstack_1grow (&string_obstack, yytext[1]);
YY_BREAK
case 67:
YY_RULE_SETUP
#line 331 "scan-gram.l"
#line 345 "scan-gram.l"
{
LOCATION_PRINT (stderr, *yylloc);
fprintf (stderr, ": unrecognized escape: %s\n", yytext);
@@ -1558,7 +1571,7 @@ YY_RULE_SETUP
case 68:
YY_RULE_SETUP
#line 346 "scan-gram.l"
#line 360 "scan-gram.l"
{
YY_OBS_GROW;
assert (yy_top_state () != INITIAL);
@@ -1567,21 +1580,21 @@ YY_RULE_SETUP
YY_BREAK
case 69:
YY_RULE_SETUP
#line 352 "scan-gram.l"
#line 366 "scan-gram.l"
YY_OBS_GROW;
YY_BREAK
case 70:
YY_RULE_SETUP
#line 353 "scan-gram.l"
#line 367 "scan-gram.l"
YY_OBS_GROW;
YY_BREAK
case 71:
YY_RULE_SETUP
#line 355 "scan-gram.l"
#line 369 "scan-gram.l"
YY_OBS_GROW; YY_LINES;
YY_BREAK
case YY_STATE_EOF(SC_CHARACTER):
#line 357 "scan-gram.l"
#line 371 "scan-gram.l"
{
LOCATION_PRINT (stderr, *yylloc);
fprintf (stderr, ": unexpected end of file in a character\n");
@@ -1598,7 +1611,7 @@ case YY_STATE_EOF(SC_CHARACTER):
case 72:
YY_RULE_SETUP
#line 373 "scan-gram.l"
#line 387 "scan-gram.l"
{
assert (yy_top_state () != INITIAL);
YY_OBS_GROW;
@@ -1607,21 +1620,21 @@ YY_RULE_SETUP
YY_BREAK
case 73:
YY_RULE_SETUP
#line 379 "scan-gram.l"
#line 393 "scan-gram.l"
YY_OBS_GROW;
YY_BREAK
case 74:
YY_RULE_SETUP
#line 380 "scan-gram.l"
#line 394 "scan-gram.l"
YY_OBS_GROW;
YY_BREAK
case 75:
YY_RULE_SETUP
#line 382 "scan-gram.l"
#line 396 "scan-gram.l"
YY_OBS_GROW; YY_LINES;
YY_BREAK
case YY_STATE_EOF(SC_STRING):
#line 384 "scan-gram.l"
#line 398 "scan-gram.l"
{
LOCATION_PRINT (stderr, *yylloc);
fprintf (stderr, ": unexpected end of file in a string\n");
@@ -1638,24 +1651,24 @@ case YY_STATE_EOF(SC_STRING):
/* Characters. We don't check there is only one. */
case 76:
YY_RULE_SETUP
#line 400 "scan-gram.l"
#line 414 "scan-gram.l"
YY_OBS_GROW; yy_push_state (SC_CHARACTER);
YY_BREAK
/* Strings. */
case 77:
YY_RULE_SETUP
#line 403 "scan-gram.l"
#line 417 "scan-gram.l"
YY_OBS_GROW; yy_push_state (SC_STRING);
YY_BREAK
/* Comments. */
case 78:
YY_RULE_SETUP
#line 406 "scan-gram.l"
#line 420 "scan-gram.l"
YY_OBS_GROW; yy_push_state (SC_COMMENT);
YY_BREAK
case 79:
YY_RULE_SETUP
#line 407 "scan-gram.l"
#line 421 "scan-gram.l"
YY_OBS_GROW;
YY_BREAK
@@ -1667,56 +1680,58 @@ YY_OBS_GROW;
case 80:
YY_RULE_SETUP
#line 418 "scan-gram.l"
#line 432 "scan-gram.l"
{
YY_OBS_GROW;
if (--braces_level == 0)
{
yy_pop_state ();
YY_OBS_FINISH;
yylval->string = last_string;
return BRACED_CODE;
}
}
YY_BREAK
case 81:
YY_RULE_SETUP
#line 428 "scan-gram.l"
#line 443 "scan-gram.l"
YY_OBS_GROW; braces_level++;
YY_BREAK
case 82:
YY_RULE_SETUP
#line 430 "scan-gram.l"
#line 445 "scan-gram.l"
{ handle_dollar (yytext); }
YY_BREAK
case 83:
YY_RULE_SETUP
#line 431 "scan-gram.l"
#line 446 "scan-gram.l"
{ handle_at (yytext); }
YY_BREAK
case 84:
YY_RULE_SETUP
#line 433 "scan-gram.l"
#line 448 "scan-gram.l"
YY_OBS_GROW;
YY_BREAK
case 85:
YY_RULE_SETUP
#line 434 "scan-gram.l"
#line 449 "scan-gram.l"
YY_OBS_GROW; YY_LINES;
YY_BREAK
/* A lose $, or /, or etc. */
case 86:
YY_RULE_SETUP
#line 437 "scan-gram.l"
#line 452 "scan-gram.l"
YY_OBS_GROW;
YY_BREAK
case YY_STATE_EOF(SC_BRACED_CODE):
#line 439 "scan-gram.l"
#line 454 "scan-gram.l"
{
LOCATION_PRINT (stderr, *yylloc);
fprintf (stderr, ": unexpected end of file in a braced code\n");
yy_pop_state ();
YY_OBS_FINISH;
return PROLOGUE;
yylval->string = last_string;
return BRACED_CODE;
}
YY_BREAK
@@ -1727,35 +1742,37 @@ case YY_STATE_EOF(SC_BRACED_CODE):
case 87:
YY_RULE_SETUP
#line 456 "scan-gram.l"
#line 472 "scan-gram.l"
{
yy_pop_state ();
YY_OBS_FINISH;
yylval->string = last_string;
return PROLOGUE;
}
YY_BREAK
case 88:
YY_RULE_SETUP
#line 462 "scan-gram.l"
#line 479 "scan-gram.l"
YY_OBS_GROW;
YY_BREAK
case 89:
YY_RULE_SETUP
#line 463 "scan-gram.l"
#line 480 "scan-gram.l"
YY_OBS_GROW;
YY_BREAK
case 90:
YY_RULE_SETUP
#line 464 "scan-gram.l"
#line 481 "scan-gram.l"
YY_OBS_GROW; YY_LINES;
YY_BREAK
case YY_STATE_EOF(SC_PROLOGUE):
#line 466 "scan-gram.l"
#line 483 "scan-gram.l"
{
LOCATION_PRINT (stderr, *yylloc);
fprintf (stderr, ": unexpected end of file in a prologue\n");
yy_pop_state ();
YY_OBS_FINISH;
yylval->string = last_string;
return PROLOGUE;
}
YY_BREAK
@@ -1768,24 +1785,25 @@ case YY_STATE_EOF(SC_PROLOGUE):
case 91:
YY_RULE_SETUP
#line 484 "scan-gram.l"
#line 502 "scan-gram.l"
YY_OBS_GROW;
YY_BREAK
case YY_STATE_EOF(SC_EPILOGUE):
#line 486 "scan-gram.l"
#line 504 "scan-gram.l"
{
yy_pop_state ();
YY_OBS_FINISH;
yylval->string = last_string;
return EPILOGUE;
}
YY_BREAK
case 92:
YY_RULE_SETUP
#line 494 "scan-gram.l"
#line 513 "scan-gram.l"
YY_FATAL_ERROR( "flex scanner jammed" );
YY_BREAK
#line 1789 "scan-gram.c"
#line 1807 "scan-gram.c"
case YY_STATE_EOF(INITIAL):
yyterminate();
@@ -2675,7 +2693,7 @@ int main()
return 0;
}
#endif
#line 494 "scan-gram.l"
#line 513 "scan-gram.l"
/*------------------------------------------------------------------.
@@ -2792,3 +2810,9 @@ handle_at (char *cp)
complain (_("%s is invalid"), quote (buf));
}
}
void
scanner_free (void)
{
obstack_free (&string_obstack, 0);
}

37
src/scan-gram.l
View File

@@ -59,7 +59,6 @@ char *last_string;
do { \
obstack_1grow (&string_obstack, '\0'); \
last_string = obstack_finish (&string_obstack); \
yylval->string = last_string; \
} while (0)
#define YY_OBS_FREE \
@@ -67,6 +66,13 @@ char *last_string;
obstack_free (&string_obstack, last_string); \
} while (0)
void
scanner_last_string_free (void)
{
YY_OBS_FREE;
}
/* This is only to avoid GCC warnings. */
#define YY_USER_INIT if (yycontrol) {;};
@@ -148,9 +154,7 @@ blanks [ \t\f]+
{eols} YY_LINES; YY_STEP;
{blanks} YY_STEP;
{id} {
YY_OBS_INIT; YY_OBS_GROW; YY_OBS_FINISH;
yylval->symbol = getsym (last_string);
YY_OBS_FREE;
yylval->symbol = getsym (yytext);
return ID;
}
@@ -173,7 +177,14 @@ blanks [ \t\f]+
"{" YY_OBS_INIT; YY_OBS_GROW; ++braces_level; yy_push_state (SC_BRACED_CODE);
/* A type. */
"<"[^>]+">" YY_OBS_INIT; obstack_grow (&string_obstack, yytext + 1, yyleng - 2); YY_OBS_FINISH; return TYPE;
"<"[^>]+">" {
YY_OBS_INIT;
obstack_grow (&string_obstack, yytext + 1, yyleng - 2);
YY_OBS_FINISH;
yylval->string = last_string;
return TYPE;
}
"%%" {
if (++percent_percent_count == 2)
@@ -244,6 +255,7 @@ blanks [ \t\f]+
assert (yy_top_state () == INITIAL);
YY_OBS_GROW;
YY_OBS_FINISH;
yylval->string = last_string;
yy_pop_state ();
return STRING;
}
@@ -257,6 +269,7 @@ blanks [ \t\f]+
fprintf (stderr, ": unexpected end of file in a string\n");
assert (yy_top_state () == INITIAL);
YY_OBS_FINISH;
yylval->string = last_string;
yy_pop_state ();
return STRING;
}
@@ -292,6 +305,7 @@ blanks [ \t\f]+
fprintf (stderr, ": unexpected end of file in a character\n");
assert (yy_top_state () == INITIAL);
YY_OBS_FINISH;
yylval->string = last_string;
yy_pop_state ();
return CHARACTER;
}
@@ -421,6 +435,7 @@ blanks [ \t\f]+
{
yy_pop_state ();
YY_OBS_FINISH;
yylval->string = last_string;
return BRACED_CODE;
}
}
@@ -441,7 +456,8 @@ blanks [ \t\f]+
fprintf (stderr, ": unexpected end of file in a braced code\n");
yy_pop_state ();
YY_OBS_FINISH;
return PROLOGUE;
yylval->string = last_string;
return BRACED_CODE;
}
}
@@ -456,6 +472,7 @@ blanks [ \t\f]+
"%}" {
yy_pop_state ();
YY_OBS_FINISH;
yylval->string = last_string;
return PROLOGUE;
}
@@ -468,6 +485,7 @@ blanks [ \t\f]+
fprintf (stderr, ": unexpected end of file in a prologue\n");
yy_pop_state ();
YY_OBS_FINISH;
yylval->string = last_string;
return PROLOGUE;
}
@@ -486,6 +504,7 @@ blanks [ \t\f]+
<<EOF>> {
yy_pop_state ();
YY_OBS_FINISH;
yylval->string = last_string;
return EPILOGUE;
}
}
@@ -607,3 +626,9 @@ handle_at (char *cp)
complain (_("%s is invalid"), quote (buf));
}
}
void
scanner_free (void)
{
obstack_free (&string_obstack, 0);
}