diff options
Diffstat (limited to 'ndb/src/old_files/client/odbc/codegen/SimpleScan.lpp')
| -rw-r--r-- | ndb/src/old_files/client/odbc/codegen/SimpleScan.lpp | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/ndb/src/old_files/client/odbc/codegen/SimpleScan.lpp b/ndb/src/old_files/client/odbc/codegen/SimpleScan.lpp deleted file mode 100644 index 29aa876f669..00000000000 --- a/ndb/src/old_files/client/odbc/codegen/SimpleScan.lpp +++ /dev/null @@ -1,243 +0,0 @@ -%{ -#include <ctype.h> -#include "SimpleParser.hpp" - -struct SqlKeyword { - const char* m_name; - int m_value; - int m_state; - static const SqlKeyword* find(Ctx& ctx, const char* name, int state); -}; - -%} - -%option c++ -%option yyclass="SimpleParser" -%option stack -%option noyywrap - -space [\040\t\n\r\f] -digit [0-9] -letter [A-Za-z_] -special ("$") -identifier ({letter}({letter}|{digit}|{special})*) -integer {digit}++ -decimal (({digit}*\.{digit}+)|({digit}+\.{digit}*)) -real ((({digit}*\.{digit}+)|({digit}+\.{digit}*)|({digit}+))([Ee][-+]?{digit}+)) - -%s StateEval -%s StateType -%s StatePhys -%x StateString -%x StateQuoted - -%% - -{space} { - } -{identifier} { - const SqlKeyword* key = SqlKeyword::find(m_ctx, (char*)yytext, YYSTATE); - if (key != 0) - return key->m_value; - for (unsigned char* a = (unsigned char*)yytext; *a != 0; a++) { - if (islower(*a)) - *a = toupper(*a); - } - m_yylval.m_string = strcpy(new char[yyleng + 1], yytext); - return T_IDENTIFIER; - } -{integer} { - m_yylval.m_string = strcpy(new char[yyleng + 1], yytext); - return T_LINTEGER; - } -{decimal} { - m_yylval.m_string = strcpy(new char[yyleng + 1], yytext); - return T_LDECIMAL; - } -{real} { - m_yylval.m_string = strcpy(new char[yyleng + 1], yytext); - return T_LREAL; - } -"--".* { - } -"/*" { - int c = 0, d; - while (1) { - d = c; - if ((c = yyinput()) == EOF) { - parseError("unterminated comment"); - yyterminate(); - } - if (d == '*' && c == '/') - break; - } - } -<StateEval>{ -"+" return T_PLUS; -"-" return T_MINUS; -"*" return T_TIMES; -"/" return T_DIVIDE; -"=" return T_EQ; -"!=" return T_NOTEQ; -"^=" return T_NOTEQ; -"<>" return T_NOTEQ; -"<" return T_LT; -"<=" return T_LTEQ; -">" return T_GT; -">=" return T_GTEQ; -"?" m_paramNumber++; return T_QUES; -} - -"." return T_PERIOD; -"," return T_COMMA; -"(" return T_PARENLEFT; -")" return T_PARENRIGHT; -"*" return T_ASTERISK; -"=" return T_ASSIGN; - -"'" { - pushState(StateString); - m_string.assign(""); - } -<StateString>{ -[^']* { - m_string.append(yytext); - } -"''" { - m_string.append("'"); - } -"'" { - m_yylval.m_string = strcpy(new char[m_string.length() + 1], m_string.c_str()); - popState(); - return T_STRING; - } -} - -\" { - pushState(StateQuoted); - m_string.assign(""); - } -<StateQuoted>{ -[^"]* { - m_string.append(yytext); - } -\\\" { - m_string.append("\""); - } -\" { - m_yylval.m_string = strcpy(new char[m_string.length() + 1], m_string.c_str()); - popState(); - return T_IDENTIFIER; - } -} - -%% - -// scan states -int SimpleParser_stateEval = StateEval; -int SimpleParser_stateType = StateType; -int SimpleParser_statePhys = StatePhys; - -// keep sorted - -static const SqlKeyword sqlKeyword[] = { - { "AND", T_AND, -1 }, - { "ASC", T_ASC, -1 }, - { "AUTO_INCREMENT", T_AUTO_INCREMENT, -1 }, - { "BIGINT", T_BIGINT, StateType }, - { "BINARY", T_BINARY, StateType }, - { "BLOB", T_BLOB, StateType }, - { "BY", T_BY, -1 }, - { "CHAR", T_CHAR, StateType }, - { "CLOB", T_CLOB, StateType }, - { "CONSTRAINT", T_CONSTRAINT, -1 }, - { "CREATE", T_CREATE, -1 }, - { "DATETIME", T_DATETIME, StateType }, - { "DEFAULT", T_DEFAULT, -1 }, - { "DELETE", T_DELETE, -1 }, - { "DESC", T_DESC, -1 }, - { "DISTINCT", T_DISTINCT, -1 }, - { "DOUBLE", T_DOUBLE, StateType }, - { "DROP", T_DROP, -1 }, - { "FLOAT", T_FLOAT, StateType }, - { "FOREIGN", T_FOREIGN, -1 }, - { "FROM", T_FROM, -1 }, - { "GROUP", T_GROUP, -1 }, - { "HASH", T_HASH, -1 }, - { "HAVING", T_HAVING, -1 }, - { "IN", T_IN, -1 }, - { "INDEX", T_INDEX, -1 }, - { "INSERT", T_INSERT, -1 }, - { "INT", T_INT, StateType }, - { "INTEGER", T_INTEGER, StateType }, - { "INTO", T_INTO, -1 }, - { "IS", T_IS, -1 }, - { "KEY", T_KEY, -1 }, - { "LARGE", T_LARGE, StatePhys }, - { "LIKE", T_LIKE, -1 }, - { "LIMIT", T_LIMIT, -1 }, - { "LOGGING", T_LOGGING, StatePhys }, - { "LONGBLOB", T_LONGBLOB, StateType }, - { "LONGCLOB", T_LONGCLOB, StateType }, - { "MEDIUM", T_MEDIUM, StatePhys }, - { "NOLOGGING", T_NOLOGGING, StatePhys }, - { "NOT", T_NOT, -1 }, - { "NULL", T_NULL, -1 }, - { "OFFSET", T_OFFSET, -1 }, - { "ON", T_ON, -1 }, - { "OR", T_OR, -1 }, - { "ORDER", T_ORDER, -1 }, - { "PRECISION", T_PRECISION, StateType }, - { "PRIMARY", T_PRIMARY, -1 }, - { "REAL", T_REAL, StateType }, - { "REFERENCES", T_REFERENCES, -1 }, - { "ROWNUM", T_ROWNUM, -1 }, - { "SELECT", T_SELECT, -1 }, - { "SET", T_SET, -1 }, - { "SINGLE", T_SINGLE, StatePhys }, - { "SMALL", T_SMALL, StatePhys }, - { "SMALLINT", T_SMALLINT, StateType }, - { "STORAGE", T_STORAGE, StatePhys }, - { "SYSDATE", T_SYSDATE, -1 }, - { "TABLE", T_TABLE, -1 }, - { "UNIQUE", T_UNIQUE, -1 }, - { "UNSIGNED", T_UNSIGNED, -1 }, - { "UPDATE", T_UPDATE, -1 }, - { "VALUES", T_VALUES, -1 }, - { "VARBINARY", T_VARBINARY, StateType }, - { "VARCHAR", T_VARCHAR, StateType }, - { "WHERE", T_WHERE, -1 }, - { "WRITE", T_WRITE, -1 } -}; - -static const unsigned sqlKeywordCount = sizeof(sqlKeyword) / sizeof(sqlKeyword[0]); - -const SqlKeyword* -SqlKeyword::find(Ctx& ctx, const char* name, int state) -{ - ctx_log4(("find keyword '%s' lex state = %d", name, state)); - const unsigned maxlen = 99; - char buf[maxlen + 1]; - char* a = buf; - const char* b = name; - while (*b != 0) { - if (a >= buf + maxlen) // will not be found - break; - char c = *b++; - if ('a' <= c && c <= 'z') // locale independent - c -= 'a' - 'A'; - *a++ = c; - } - *a = 0; - for (unsigned i = 0; i < sqlKeywordCount; i++) { - const SqlKeyword* key = &sqlKeyword[i]; - if (strcmp(key->m_name, buf) == 0) { - if (key->m_state != -1 && key->m_state != state) - return 0; - return key; - } - } - return 0; -} - -/* vim: set filetype=lex: */ |