222 lines
4.0 KiB
Plaintext
222 lines
4.0 KiB
Plaintext
/**
|
|
* lexer
|
|
*
|
|
*
|
|
*/
|
|
|
|
|
|
/***************************
|
|
** Section 1: Definitions
|
|
***************************/
|
|
%{
|
|
|
|
#include "../sql/Expr.h"
|
|
#include "bison_parser.h"
|
|
#include <stdio.h>
|
|
|
|
#define TOKEN(name) { return SQL_##name; }
|
|
|
|
%}
|
|
/***************************
|
|
** Section 2: Rules
|
|
***************************/
|
|
|
|
/* Define the output files */
|
|
%option header-file="flex_lexer.h"
|
|
%option outfile="flex_lexer.cpp"
|
|
|
|
/* Make reentrant */
|
|
%option reentrant
|
|
%option bison-bridge
|
|
|
|
/* performance tweeks */
|
|
%option never-interactive
|
|
%option batch
|
|
|
|
/* other flags */
|
|
%option noyywrap
|
|
%option nounput
|
|
%option warn
|
|
%option case-insensitive
|
|
%option prefix="hsql_"
|
|
%option bison-locations
|
|
/* %option nodefault */
|
|
|
|
|
|
%s COMMENT
|
|
|
|
/***************************
|
|
** Section 3: Rules
|
|
***************************/
|
|
%%
|
|
|
|
-- BEGIN(COMMENT);
|
|
<COMMENT>[^\n]* /* skipping comment content until a end of line is read */;
|
|
<COMMENT>\n BEGIN(INITIAL);
|
|
|
|
|
|
[ \t\n]+ /* skip whitespace */;
|
|
|
|
|
|
|
|
DEALLOCATE TOKEN(DEALLOCATE)
|
|
PARAMETERS TOKEN(PARAMETERS)
|
|
INTERSECT TOKEN(INTERSECT)
|
|
TEMPORARY TOKEN(TEMPORARY)
|
|
TIMESTAMP TOKEN(TIMESTAMP)
|
|
DISTINCT TOKEN(DISTINCT)
|
|
NVARCHAR TOKEN(NVARCHAR)
|
|
RESTRICT TOKEN(RESTRICT)
|
|
TRUNCATE TOKEN(TRUNCATE)
|
|
ANALYZE TOKEN(ANALYZE)
|
|
BETWEEN TOKEN(BETWEEN)
|
|
CASCADE TOKEN(CASCADE)
|
|
COLUMNS TOKEN(COLUMNS)
|
|
CONTROL TOKEN(CONTROL)
|
|
DEFAULT TOKEN(DEFAULT)
|
|
EXECUTE TOKEN(EXECUTE)
|
|
EXPLAIN TOKEN(EXPLAIN)
|
|
HISTORY TOKEN(HISTORY)
|
|
INTEGER TOKEN(INTEGER)
|
|
NATURAL TOKEN(NATURAL)
|
|
PREPARE TOKEN(PREPARE)
|
|
PRIMARY TOKEN(PRIMARY)
|
|
SCHEMAS TOKEN(SCHEMAS)
|
|
SPATIAL TOKEN(SPATIAL)
|
|
VIRTUAL TOKEN(VIRTUAL)
|
|
BEFORE TOKEN(BEFORE)
|
|
COLUMN TOKEN(COLUMN)
|
|
CREATE TOKEN(CREATE)
|
|
DELETE TOKEN(DELETE)
|
|
DIRECT TOKEN(DIRECT)
|
|
DOUBLE TOKEN(DOUBLE)
|
|
ESCAPE TOKEN(ESCAPE)
|
|
EXCEPT TOKEN(EXCEPT)
|
|
EXISTS TOKEN(EXISTS)
|
|
GLOBAL TOKEN(GLOBAL)
|
|
HAVING TOKEN(HAVING)
|
|
IMPORT TOKEN(IMPORT)
|
|
INSERT TOKEN(INSERT)
|
|
ISNULL TOKEN(ISNULL)
|
|
OFFSET TOKEN(OFFSET)
|
|
RENAME TOKEN(RENAME)
|
|
SCHEMA TOKEN(SCHEMA)
|
|
SELECT TOKEN(SELECT)
|
|
SORTED TOKEN(SORTED)
|
|
TABLES TOKEN(TABLES)
|
|
UNIQUE TOKEN(UNIQUE)
|
|
UNLOAD TOKEN(UNLOAD)
|
|
UPDATE TOKEN(UPDATE)
|
|
VALUES TOKEN(VALUES)
|
|
AFTER TOKEN(AFTER)
|
|
ALTER TOKEN(ALTER)
|
|
CROSS TOKEN(CROSS)
|
|
DELTA TOKEN(DELTA)
|
|
GROUP TOKEN(GROUP)
|
|
INDEX TOKEN(INDEX)
|
|
INNER TOKEN(INNER)
|
|
LIMIT TOKEN(LIMIT)
|
|
LOCAL TOKEN(LOCAL)
|
|
MERGE TOKEN(MERGE)
|
|
MINUS TOKEN(MINUS)
|
|
ORDER TOKEN(ORDER)
|
|
OUTER TOKEN(OUTER)
|
|
RIGHT TOKEN(RIGHT)
|
|
TABLE TOKEN(TABLE)
|
|
UNION TOKEN(UNION)
|
|
USING TOKEN(USING)
|
|
WHERE TOKEN(WHERE)
|
|
CALL TOKEN(CALL)
|
|
DATE TOKEN(DATE)
|
|
DESC TOKEN(DESC)
|
|
DROP TOKEN(DROP)
|
|
FILE TOKEN(FILE)
|
|
FROM TOKEN(FROM)
|
|
FULL TOKEN(FULL)
|
|
HASH TOKEN(HASH)
|
|
HINT TOKEN(HINT)
|
|
INTO TOKEN(INTO)
|
|
JOIN TOKEN(JOIN)
|
|
LEFT TOKEN(LEFT)
|
|
LIKE TOKEN(LIKE)
|
|
LOAD TOKEN(LOAD)
|
|
NULL TOKEN(NULL)
|
|
PART TOKEN(PART)
|
|
PLAN TOKEN(PLAN)
|
|
SHOW TOKEN(SHOW)
|
|
TEXT TOKEN(TEXT)
|
|
TIME TOKEN(TIME)
|
|
VIEW TOKEN(VIEW)
|
|
WITH TOKEN(WITH)
|
|
ADD TOKEN(ADD)
|
|
ALL TOKEN(ALL)
|
|
AND TOKEN(AND)
|
|
ASC TOKEN(ASC)
|
|
CSV TOKEN(CSV)
|
|
FOR TOKEN(FOR)
|
|
INT TOKEN(INT)
|
|
KEY TOKEN(KEY)
|
|
NOT TOKEN(NOT)
|
|
OFF TOKEN(OFF)
|
|
SET TOKEN(SET)
|
|
TBL TOKEN(TBL)
|
|
TOP TOKEN(TOP)
|
|
AS TOKEN(AS)
|
|
BY TOKEN(BY)
|
|
IF TOKEN(IF)
|
|
IN TOKEN(IN)
|
|
IS TOKEN(IS)
|
|
OF TOKEN(OF)
|
|
ON TOKEN(ON)
|
|
OR TOKEN(OR)
|
|
TO TOKEN(TO)
|
|
|
|
|
|
"<>" TOKEN(NOTEQUALS)
|
|
"<=" TOKEN(LESSEQ)
|
|
">=" TOKEN(GREATEREQ)
|
|
|
|
|
|
[-+*/(){},.;<>=^%:?] { return yytext[0]; }
|
|
|
|
|
|
[0-9]+"."[0-9]* |
|
|
"."[0-9]* {
|
|
yylval->fval = atof(yytext);
|
|
return SQL_FLOATVAL;
|
|
}
|
|
|
|
[0-9]+ {
|
|
yylval->ival = atol(yytext);
|
|
return SQL_INTVAL;
|
|
}
|
|
|
|
\"[^\"\n]+\" {
|
|
// Crop the leading and trailing quote char
|
|
yylval->sval = hsql::substr(yytext, 1, strlen(yytext)-1);
|
|
return SQL_IDENTIFIER;
|
|
}
|
|
|
|
[A-Za-z][A-Za-z0-9_]* {
|
|
yylval->sval = strdup(yytext);
|
|
return SQL_IDENTIFIER;
|
|
}
|
|
|
|
|
|
'[^'\n]*' {
|
|
// Crop the leading and trailing quote char
|
|
yylval->sval = hsql::substr(yytext, 1, strlen(yytext)-1);
|
|
return SQL_STRING;
|
|
}
|
|
|
|
. { fprintf(stderr, "[SQL-Lexer-Error] Unknown Character: %c\n", yytext[0]); return 0; }
|
|
|
|
|
|
%%
|
|
/***************************
|
|
** Section 3: User code
|
|
***************************/
|
|
|
|
int yyerror(const char *msg) {
|
|
fprintf(stderr, "[SQL-Lexer-Error] %s\n",msg); return 0;
|
|
} |