forked from gitea/gitea
1260 lines
29 KiB
Plaintext
1260 lines
29 KiB
Plaintext
%{
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// Copyright 2013 The ql Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSES/QL-LICENSE file.
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// Copyright 2015 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package parser
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import (
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"fmt"
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"math"
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"strconv"
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"strings"
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"unicode"
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"github.com/pingcap/tidb/ast"
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"github.com/pingcap/tidb/mysql"
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"github.com/pingcap/tidb/util/charset"
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"github.com/pingcap/tidb/util/stringutil"
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)
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type lexer struct {
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c int
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col int
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errs []error
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expr ast.ExprNode
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i int
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inj int
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lcol int
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line int
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list []ast.StmtNode
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ncol int
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nline int
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sc int
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src string
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val []byte
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ungetBuf []byte
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root bool
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prepare bool
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stmtStartPos int
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stringLit []byte
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// record token's offset of the input
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tokenEndOffset int
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tokenStartOffset int
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// Charset information
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charset string
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collation string
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}
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// NewLexer builds a new lexer.
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func NewLexer(src string) (l *lexer) {
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l = &lexer{
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src: src,
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nline: 1,
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ncol: 0,
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}
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l.next()
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return
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}
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func (l *lexer) Errors() []error {
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return l.errs
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}
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func (l *lexer) Stmts() []ast.StmtNode {
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return l.list
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}
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func (l *lexer) Expr() ast.ExprNode {
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return l.expr
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}
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func (l *lexer) Inj() int {
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return l.inj
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}
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func (l *lexer) SetInj(inj int) {
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l.inj = inj
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}
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func (l *lexer) SetPrepare() {
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l.prepare = true
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}
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func (l *lexer) IsPrepare() bool {
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return l.prepare
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}
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func (l *lexer) Root() bool {
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return l.root
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}
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func (l *lexer) SetRoot(root bool) {
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l.root = root
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}
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func (l *lexer) SetCharsetInfo(charset, collation string) {
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l.charset = charset
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l.collation = collation
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}
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func (l *lexer) GetCharsetInfo() (string, string) {
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return l.charset, l.collation
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}
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// The select statement is not at the end of the whole statement, if the last
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// field text was set from its offset to the end of the src string, update
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// the last field text.
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func (l *lexer) SetLastSelectFieldText(st *ast.SelectStmt, lastEnd int) {
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lastField := st.Fields.Fields[len(st.Fields.Fields)-1]
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if lastField.Offset + len(lastField.Text()) >= len(l.src)-1 {
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lastField.SetText(l.src[lastField.Offset:lastEnd])
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}
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}
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func (l *lexer) startOffset(offset int) int {
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offset--
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for unicode.IsSpace(rune(l.src[offset])) {
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offset++
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}
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return offset
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}
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func (l *lexer) endOffset(offset int) int {
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offset--
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for offset > 0 && unicode.IsSpace(rune(l.src[offset-1])) {
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offset--
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}
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return offset
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}
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func (l *lexer) unget(b byte) {
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l.ungetBuf = append(l.ungetBuf, b)
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l.i--
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l.ncol--
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l.tokenEndOffset--
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}
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func (l *lexer) next() int {
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if un := len(l.ungetBuf); un > 0 {
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nc := l.ungetBuf[0]
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l.ungetBuf = l.ungetBuf[1:]
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l.c = int(nc)
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return l.c
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}
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if l.c != 0 {
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l.val = append(l.val, byte(l.c))
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}
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l.c = 0
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if l.i < len(l.src) {
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l.c = int(l.src[l.i])
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l.i++
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}
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switch l.c {
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case '\n':
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l.lcol = l.ncol
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l.nline++
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l.ncol = 0
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default:
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l.ncol++
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}
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l.tokenEndOffset++
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return l.c
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}
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func (l *lexer) err0(ln, c int, arg interface{}) {
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var argStr string
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if arg != nil {
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argStr = fmt.Sprintf(" %v", arg)
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}
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err := fmt.Errorf("line %d column %d near \"%s\"%s", ln, c, l.val, argStr)
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l.errs = append(l.errs, err)
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}
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func (l *lexer) err(arg interface{}) {
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l.err0(l.line, l.col, arg)
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}
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func (l *lexer) errf(format string, args ...interface{}) {
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s := fmt.Sprintf(format, args...)
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l.err0(l.line, l.col, s)
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}
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func (l *lexer) Error(s string) {
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// Notice: ignore origin error info.
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l.err(nil)
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}
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func (l *lexer) stmtText() string {
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endPos := l.i
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if l.src[l.i-1] == '\n' {
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endPos = l.i-1 // trim new line
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}
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if l.src[l.stmtStartPos] == '\n' {
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l.stmtStartPos++
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}
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text := l.src[l.stmtStartPos:endPos]
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l.stmtStartPos = l.i
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return text
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}
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func (l *lexer) Lex(lval *yySymType) (r int) {
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defer func() {
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lval.line, lval.col, lval.offset = l.line, l.col, l.tokenStartOffset
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l.tokenStartOffset = l.tokenEndOffset
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}()
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const (
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INITIAL = iota
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S1
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S2
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S3
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S4
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)
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if n := l.inj; n != 0 {
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l.inj = 0
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return n
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}
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c0, c := 0, l.c
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%}
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int_lit {decimal_lit}|{octal_lit}
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decimal_lit [1-9][0-9]*
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octal_lit 0[0-7]*
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hex_lit 0[xX][0-9a-fA-F]+|[xX]"'"[0-9a-fA-F]+"'"
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bit_lit 0[bB][01]+|[bB]"'"[01]+"'"
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float_lit {D}"."{D}?{E}?|{D}{E}|"."{D}{E}?
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D [0-9]+
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E [eE][-+]?[0-9]+
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imaginary_ilit {D}i
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imaginary_lit {float_lit}i
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a [aA]
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b [bB]
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c [cC]
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d [dD]
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e [eE]
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f [fF]
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g [gG]
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h [hH]
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i [iI]
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j [jJ]
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k [kK]
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l [lL]
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m [mM]
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n [nN]
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o [oO]
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p [pP]
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q [qQ]
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r [rR]
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s [sS]
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t [tT]
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u [uU]
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v [vV]
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w [wW]
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x [xX]
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y [yY]
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z [zZ]
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abs {a}{b}{s}
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add {a}{d}{d}
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adddate {a}{d}{d}{d}{a}{t}{e}
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admin {a}{d}{m}{i}{n}
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after {a}{f}{t}{e}{r}
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all {a}{l}{l}
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alter {a}{l}{t}{e}{r}
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and {a}{n}{d}
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any {a}{n}{y}
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as {a}{s}
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asc {a}{s}{c}
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auto_increment {a}{u}{t}{o}_{i}{n}{c}{r}{e}{m}{e}{n}{t}
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avg {a}{v}{g}
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avg_row_length {a}{v}{g}_{r}{o}{w}_{l}{e}{n}{g}{t}{h}
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begin {b}{e}{g}{i}{n}
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between {b}{e}{t}{w}{e}{e}{n}
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both {b}{o}{t}{h}
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btree {b}{t}{r}{e}{e}
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by {b}{y}
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case {c}{a}{s}{e}
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cast {c}{a}{s}{t}
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character {c}{h}{a}{r}{a}{c}{t}{e}{r}
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charset {c}{h}{a}{r}{s}{e}{t}
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check {c}{h}{e}{c}{k}
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checksum {c}{h}{e}{c}{k}{s}{u}{m}
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coalesce {c}{o}{a}{l}{e}{s}{c}{e}
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collate {c}{o}{l}{l}{a}{t}{e}
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collation {c}{o}{l}{l}{a}{t}{i}{o}{n}
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column {c}{o}{l}{u}{m}{n}
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columns {c}{o}{l}{u}{m}{n}{s}
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comment {c}{o}{m}{m}{e}{n}{t}
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commit {c}{o}{m}{m}{i}{t}
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committed {c}{o}{m}{m}{i}{t}{t}{e}{d}
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compact {c}{o}{m}{p}{a}{c}{t}
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compressed {c}{o}{m}{p}{r}{e}{s}{s}{e}{d}
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compression {c}{o}{m}{p}{r}{e}{s}{s}{i}{o}{n}
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concat {c}{o}{n}{c}{a}{t}
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concat_ws {c}{o}{n}{c}{a}{t}_{w}{s}
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connection {c}{o}{n}{n}{e}{c}{t}{i}{o}{n}
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connection_id {c}{o}{n}{n}{e}{c}{t}{i}{o}{n}_{i}{d}
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constraint {c}{o}{n}{s}{t}{r}{a}{i}{n}{t}
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convert {c}{o}{n}{v}{e}{r}{t}
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count {c}{o}{u}{n}{t}
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create {c}{r}{e}{a}{t}{e}
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cross {c}{r}{o}{s}{s}
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curdate {c}{u}{r}{d}{a}{t}{e}
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current_date {c}{u}{r}{r}{e}{n}{t}_{d}{a}{t}{e}
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curtime {c}{u}{r}{t}{i}{m}{e}
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current_time {c}{u}{r}{r}{e}{n}{t}_{t}{i}{m}{e}
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current_user {c}{u}{r}{r}{e}{n}{t}_{u}{s}{e}{r}
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database {d}{a}{t}{a}{b}{a}{s}{e}
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databases {d}{a}{t}{a}{b}{a}{s}{e}{s}
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date_add {d}{a}{t}{e}_{a}{d}{d}
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date_sub {d}{a}{t}{e}_{s}{u}{b}
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day {d}{a}{y}
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dayname {d}{a}{y}{n}{a}{m}{e}
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dayofweek {d}{a}{y}{o}{f}{w}{e}{e}{k}
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dayofmonth {d}{a}{y}{o}{f}{m}{o}{n}{t}{h}
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dayofyear {d}{a}{y}{o}{f}{y}{e}{a}{r}
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ddl {d}{d}{l}
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deallocate {d}{e}{a}{l}{l}{o}{c}{a}{t}{e}
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default {d}{e}{f}{a}{u}{l}{t}
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delayed {d}{e}{l}{a}{y}{e}{d}
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delay_key_write {d}{e}{l}{a}{y}_{k}{e}{y}_{w}{r}{i}{t}{e}
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delete {d}{e}{l}{e}{t}{e}
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drop {d}{r}{o}{p}
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desc {d}{e}{s}{c}
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describe {d}{e}{s}{c}{r}{i}{b}{e}
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distinct {d}{i}{s}{t}{i}{n}{c}{t}
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div {d}{i}{v}
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do {d}{o}
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dual {d}{u}{a}{l}
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duplicate {d}{u}{p}{l}{i}{c}{a}{t}{e}
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dynamic {d}{y}{n}{a}{m}{i}{c}
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else {e}{l}{s}{e}
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end {e}{n}{d}
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engine {e}{n}{g}{i}{n}{e}
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engines {e}{n}{g}{i}{n}{e}{s}
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escape {e}{s}{c}{a}{p}{e}
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execute {e}{x}{e}{c}{u}{t}{e}
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exists {e}{x}{i}{s}{t}{s}
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explain {e}{x}{p}{l}{a}{i}{n}
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extract {e}{x}{t}{r}{a}{c}{t}
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fields {f}{i}{e}{l}{d}{s}
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first {f}{i}{r}{s}{t}
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fixed {f}{i}{x}{e}{d}
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for {f}{o}{r}
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foreign {f}{o}{r}{e}{i}{g}{n}
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found_rows {f}{o}{u}{n}{d}_{r}{o}{w}{s}
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from {f}{r}{o}{m}
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full {f}{u}{l}{l}
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fulltext {f}{u}{l}{l}{t}{e}{x}{t}
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global {g}{l}{o}{b}{a}{l}
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grant {g}{r}{a}{n}{t}
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grants {g}{r}{a}{n}{t}{s}
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group {g}{r}{o}{u}{p}
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group_concat {g}{r}{o}{u}{p}_{c}{o}{n}{c}{a}{t}
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hash {h}{a}{s}{h}
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having {h}{a}{v}{i}{n}{g}
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high_priority {h}{i}{g}{h}_{p}{r}{i}{o}{r}{i}{t}{y}
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hour {h}{o}{u}{r}
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identified {i}{d}{e}{n}{t}{i}{f}{i}{e}{d}
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if {i}{f}
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ifnull {i}{f}{n}{u}{l}{l}
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ignore {i}{g}{n}{o}{r}{e}
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in {i}{n}
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index {i}{n}{d}{e}{x}
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inner {i}{n}{n}{e}{r}
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insert {i}{n}{s}{e}{r}{t}
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interval {i}{n}{t}{e}{r}{v}{a}{l}
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into {i}{n}{t}{o}
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is {i}{s}
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isolation {i}{s}{o}{l}{a}{t}{i}{o}{n}
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join {j}{o}{i}{n}
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key {k}{e}{y}
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key_block_size {k}{e}{y}_{b}{l}{o}{c}{k}_{s}{i}{z}{e}
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leading {l}{e}{a}{d}{i}{n}{g}
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left {l}{e}{f}{t}
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length {l}{e}{n}{g}{t}{h}
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level {l}{e}{v}{e}{l}
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like {l}{i}{k}{e}
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limit {l}{i}{m}{i}{t}
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local {l}{o}{c}{a}{l}
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locate {l}{o}{c}{a}{t}{e}
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lock {l}{o}{c}{k}
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lower {l}{o}{w}{e}{r}
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low_priority {l}{o}{w}_{p}{r}{i}{o}{r}{i}{t}{y}
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max_rows {m}{a}{x}_{r}{o}{w}{s}
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microsecond {m}{i}{c}{r}{o}{s}{e}{c}{o}{n}{d}
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minute {m}{i}{n}{u}{t}{e}
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min_rows {m}{i}{n}_{r}{o}{w}{s}
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mod {m}{o}{d}
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mode {m}{o}{d}{e}
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month {m}{o}{n}{t}{h}
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names {n}{a}{m}{e}{s}
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national {n}{a}{t}{i}{o}{n}{a}{l}
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not {n}{o}{t}
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offset {o}{f}{f}{s}{e}{t}
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on {o}{n}
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only {o}{n}{l}{y}
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option {o}{p}{t}{i}{o}{n}
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or {o}{r}
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order {o}{r}{d}{e}{r}
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outer {o}{u}{t}{e}{r}
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password {p}{a}{s}{s}{w}{o}{r}{d}
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pow {p}{o}{w}
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power {p}{o}{w}{e}{r}
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prepare {p}{r}{e}{p}{a}{r}{e}
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primary {p}{r}{i}{m}{a}{r}{y}
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procedure {p}{r}{o}{c}{e}{d}{u}{r}{e}
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quarter {q}{u}{a}{r}{t}{e}{r}
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quick {q}{u}{i}{c}{k}
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rand {r}{a}{n}{d}
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read {r}{e}{a}{d}
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repeat {r}{e}{p}{e}{a}{t}
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repeatable {r}{e}{p}{e}{a}{t}{a}{b}{l}{e}
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references {r}{e}{f}{e}{r}{e}{n}{c}{e}{s}
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regexp {r}{e}{g}{e}{x}{p}
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replace {r}{e}{p}{l}{a}{c}{e}
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redundant {r}{e}{d}{u}{n}{d}{a}{n}{t}
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right {r}{i}{g}{h}{t}
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rlike {r}{l}{i}{k}{e}
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rollback {r}{o}{l}{l}{b}{a}{c}{k}
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row {r}{o}{w}
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row_format {r}{o}{w}_{f}{o}{r}{m}{a}{t}
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schema {s}{c}{h}{e}{m}{a}
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schemas {s}{c}{h}{e}{m}{a}{s}
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second {s}{e}{c}{o}{n}{d}
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select {s}{e}{l}{e}{c}{t}
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serializable {s}{e}{r}{i}{a}{l}{i}{z}{a}{b}{l}{e}
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session {s}{e}{s}{s}{i}{o}{n}
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set {s}{e}{t}
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share {s}{h}{a}{r}{e}
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show {s}{h}{o}{w}
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some {s}{o}{m}{e}
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start {s}{t}{a}{r}{t}
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status {s}{t}{a}{t}{u}{s}
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subdate {s}{u}{b}{d}{a}{t}{e}
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strcmp {s}{t}{r}{c}{m}{p}
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substr {s}{u}{b}{s}{t}{r}
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substring {s}{u}{b}{s}{t}{r}{i}{n}{g}
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substring_index {s}{u}{b}{s}{t}{r}{i}{n}{g}_{i}{n}{d}{e}{x}
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sum {s}{u}{m}
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sysdate {s}{y}{s}{d}{a}{t}{e}
|
|
table {t}{a}{b}{l}{e}
|
|
tables {t}{a}{b}{l}{e}{s}
|
|
then {t}{h}{e}{n}
|
|
to {t}{o}
|
|
trailing {t}{r}{a}{i}{l}{i}{n}{g}
|
|
transaction {t}{r}{a}{n}{s}{a}{c}{t}{i}{o}{n}
|
|
triggers {t}{r}{i}{g}{g}{e}{r}{s}
|
|
trim {t}{r}{i}{m}
|
|
truncate {t}{r}{u}{n}{c}{a}{t}{e}
|
|
max {m}{a}{x}
|
|
min {m}{i}{n}
|
|
uncommitted {u}{n}{c}{o}{m}{m}{i}{t}{t}{e}{d}
|
|
unknown {u}{n}{k}{n}{o}{w}{n}
|
|
union {u}{n}{i}{o}{n}
|
|
unique {u}{n}{i}{q}{u}{e}
|
|
unlock {u}{n}{l}{o}{c}{k}
|
|
nullif {n}{u}{l}{l}{i}{f}
|
|
update {u}{p}{d}{a}{t}{e}
|
|
upper {u}{p}{p}{e}{r}
|
|
value {v}{a}{l}{u}{e}
|
|
values {v}{a}{l}{u}{e}{s}
|
|
variables {v}{a}{r}{i}{a}{b}{l}{e}{s}
|
|
version {v}{e}{r}{s}{i}{o}{n}
|
|
warnings {w}{a}{r}{n}{i}{n}{g}{s}
|
|
week {w}{e}{e}{k}
|
|
weekday {w}{e}{e}{k}{d}{a}{y}
|
|
weekofyear {w}{e}{e}{k}{o}{f}{y}{e}{a}{r}
|
|
where {w}{h}{e}{r}{e}
|
|
when {w}{h}{e}{n}
|
|
write {w}{r}{i}{t}{e}
|
|
xor {x}{o}{r}
|
|
yearweek {y}{e}{a}{r}{w}{e}{e}{k}
|
|
|
|
null {n}{u}{l}{l}
|
|
false {f}{a}{l}{s}{e}
|
|
true {t}{r}{u}{e}
|
|
|
|
calc_found_rows {s}{q}{l}_{c}{a}{l}{c}_{f}{o}{u}{n}{d}_{r}{o}{w}{s}
|
|
|
|
current_ts {c}{u}{r}{r}{e}{n}{t}_{t}{i}{m}{e}{s}{t}{a}{m}{p}
|
|
localtime {l}{o}{c}{a}{l}{t}{i}{m}{e}
|
|
localts {l}{o}{c}{a}{l}{t}{i}{m}{e}{s}{t}{a}{m}{p}
|
|
now {n}{o}{w}
|
|
|
|
bit {b}{i}{t}
|
|
tiny {t}{i}{n}{y}
|
|
tinyint {t}{i}{n}{y}{i}{n}{t}
|
|
smallint {s}{m}{a}{l}{l}{i}{n}{t}
|
|
mediumint {m}{e}{d}{i}{u}{m}{i}{n}{t}
|
|
int {i}{n}{t}
|
|
integer {i}{n}{t}{e}{g}{e}{r}
|
|
bigint {b}{i}{g}{i}{n}{t}
|
|
real {r}{e}{a}{l}
|
|
double {d}{o}{u}{b}{l}{e}
|
|
float {f}{l}{o}{a}{t}
|
|
decimal {d}{e}{c}{i}{m}{a}{l}
|
|
numeric {n}{u}{m}{e}{r}{i}{c}
|
|
date {d}{a}{t}{e}
|
|
time {t}{i}{m}{e}
|
|
timestamp {t}{i}{m}{e}{s}{t}{a}{m}{p}
|
|
datetime {d}{a}{t}{e}{t}{i}{m}{e}
|
|
year {y}{e}{a}{r}
|
|
char {c}{h}{a}{r}
|
|
varchar {v}{a}{r}{c}{h}{a}{r}
|
|
binary {b}{i}{n}{a}{r}{y}
|
|
varbinary {v}{a}{r}{b}{i}{n}{a}{r}{y}
|
|
tinyblob {t}{i}{n}{y}{b}{l}{o}{b}
|
|
blob {b}{l}{o}{b}
|
|
mediumblob {m}{e}{d}{i}{u}{m}{b}{l}{o}{b}
|
|
longblob {l}{o}{n}{g}{b}{l}{o}{b}
|
|
tinytext {t}{i}{n}{y}{t}{e}{x}{t}
|
|
text {t}{e}{x}{t}
|
|
mediumtext {m}{e}{d}{i}{u}{m}{t}{e}{x}{t}
|
|
longtext {l}{o}{n}{g}{t}{e}{x}{t}
|
|
enum {e}{n}{u}{m}
|
|
precision {p}{r}{e}{c}{i}{s}{i}{o}{n}
|
|
|
|
signed {s}{i}{g}{n}{e}{d}
|
|
unsigned {u}{n}{s}{i}{g}{n}{e}{d}
|
|
zerofill {z}{e}{r}{o}{f}{i}{l}{l}
|
|
|
|
bigrat {b}{i}{g}{r}{a}{t}
|
|
bool {b}{o}{o}{l}
|
|
boolean {b}{o}{o}{l}{e}{a}{n}
|
|
byte {b}{y}{t}{e}
|
|
duration {d}{u}{r}{a}{t}{i}{o}{n}
|
|
rune {r}{u}{n}{e}
|
|
string {s}{t}{r}{i}{n}{g}
|
|
use {u}{s}{e}
|
|
user {u}{s}{e}{r}
|
|
using {u}{s}{i}{n}{g}
|
|
|
|
idchar0 [a-zA-Z_]
|
|
idchars {idchar0}|[0-9$] // See: https://dev.mysql.com/doc/refman/5.7/en/identifiers.html
|
|
ident {idchar0}{idchars}*
|
|
|
|
user_var "@"{ident}
|
|
sys_var "@@"(({global}".")|({session}".")|{local}".")?{ident}
|
|
|
|
second_microsecond {s}{e}{c}{o}{n}{d}_{m}{i}{c}{r}{o}{s}{e}{c}{o}{n}{d}
|
|
minute_microsecond {m}{i}{n}{u}{t}{e}_{m}{i}{c}{r}{o}{s}{e}{c}{o}{n}{d}
|
|
minute_second {m}{i}{n}{u}{t}{e}_{s}{e}{c}{o}{n}{d}
|
|
hour_microsecond {h}{o}{u}{r}_{m}{i}{c}{r}{o}{s}{e}{c}{o}{n}{d}
|
|
hour_second {h}{o}{u}{r}_{s}{e}{c}{o}{n}{d}
|
|
hour_minute {h}{o}{u}{r}_{m}{i}{n}{u}{t}{e}
|
|
day_microsecond {d}{a}{y}_{m}{i}{c}{r}{o}{s}{e}{c}{o}{n}{d}
|
|
day_second {d}{a}{y}_{s}{e}{c}{o}{n}{d}
|
|
day_minute {d}{a}{y}_{m}{i}{n}{u}{t}{e}
|
|
day_hour {d}{a}{y}_{h}{o}{u}{r}
|
|
year_month {y}{e}{a}{r}_{m}{o}{n}{t}{h}
|
|
|
|
%yyc c
|
|
%yyn c = l.next()
|
|
%yyt l.sc
|
|
|
|
%x S1 S2 S3 S4
|
|
|
|
%%
|
|
l.val = l.val[:0]
|
|
c0, l.line, l.col = l.c, l.nline, l.ncol
|
|
|
|
<*>\0 return 0
|
|
|
|
[ \t\n\r]+
|
|
#.*
|
|
\/\/.*
|
|
\/\*([^*]|\*+[^*/])*\*+\/
|
|
-- l.sc = S3
|
|
<S3>[ \t]+.* {l.sc = 0}
|
|
<S3>[^ \t] {
|
|
l.sc = 0
|
|
l.c = '-'
|
|
n := len(l.val)
|
|
l.unget(l.val[n-1])
|
|
return '-'
|
|
}
|
|
|
|
{int_lit} return l.int(lval)
|
|
{float_lit} return l.float(lval)
|
|
{hex_lit} return l.hex(lval)
|
|
{bit_lit} return l.bit(lval)
|
|
|
|
\" l.sc = S1
|
|
' l.sc = S2
|
|
` l.sc = S4
|
|
|
|
<S1>[^\"\\]* l.stringLit = append(l.stringLit, l.val...)
|
|
<S1>\\. l.stringLit = append(l.stringLit, l.val...)
|
|
<S1>\"\" l.stringLit = append(l.stringLit, '"')
|
|
<S1>\" l.stringLit = append(l.stringLit, '"')
|
|
l.sc = 0
|
|
return l.str(lval, "\"")
|
|
<S2>[^'\\]* l.stringLit = append(l.stringLit, l.val...)
|
|
<S2>\\. l.stringLit = append(l.stringLit, l.val...)
|
|
<S2>'' l.stringLit = append(l.stringLit, '\'')
|
|
<S2>' l.stringLit = append(l.stringLit, '\'')
|
|
l.sc = 0
|
|
return l.str(lval, "'")
|
|
<S4>[^`]* l.stringLit = append(l.stringLit, l.val...)
|
|
<S4>`` l.stringLit = append(l.stringLit, '`')
|
|
<S4>` l.sc = 0
|
|
lval.item = string(l.stringLit)
|
|
l.stringLit = l.stringLit[0:0]
|
|
return identifier
|
|
|
|
"&&" return andand
|
|
"&^" return andnot
|
|
"<<" return lsh
|
|
"<=" return le
|
|
"=" return eq
|
|
">=" return ge
|
|
"!=" return neq
|
|
"<>" return neq
|
|
"||" return oror
|
|
">>" return rsh
|
|
"<=>" return nulleq
|
|
|
|
"@" return at
|
|
"?" return placeholder
|
|
|
|
{abs} lval.item = string(l.val)
|
|
return abs
|
|
{add} return add
|
|
{adddate} lval.item = string(l.val)
|
|
return addDate
|
|
{admin} lval.item = string(l.val)
|
|
return admin
|
|
{after} lval.item = string(l.val)
|
|
return after
|
|
{all} return all
|
|
{alter} return alter
|
|
{and} return and
|
|
{any} lval.item = string(l.val)
|
|
return any
|
|
{asc} return asc
|
|
{as} return as
|
|
{auto_increment} lval.item = string(l.val)
|
|
return autoIncrement
|
|
{avg} lval.item = string(l.val)
|
|
return avg
|
|
{avg_row_length} lval.item = string(l.val)
|
|
return avgRowLength
|
|
{begin} lval.item = string(l.val)
|
|
return begin
|
|
{between} return between
|
|
{both} return both
|
|
{btree} lval.item = string(l.val)
|
|
return btree
|
|
{by} return by
|
|
{case} return caseKwd
|
|
{cast} lval.item = string(l.val)
|
|
return cast
|
|
{character} return character
|
|
{charset} lval.item = string(l.val)
|
|
return charsetKwd
|
|
{check} return check
|
|
{checksum} lval.item = string(l.val)
|
|
return checksum
|
|
{coalesce} lval.item = string(l.val)
|
|
return coalesce
|
|
{collate} return collate
|
|
{collation} lval.item = string(l.val)
|
|
return collation
|
|
{column} return column
|
|
{columns} lval.item = string(l.val)
|
|
return columns
|
|
{comment} lval.item = string(l.val)
|
|
return comment
|
|
{commit} lval.item = string(l.val)
|
|
return commit
|
|
{committed} lval.item = string(l.val)
|
|
return committed
|
|
{compact} lval.item = string(l.val)
|
|
return compact
|
|
{compressed} lval.item = string(l.val)
|
|
return compressed
|
|
{compression} lval.item = string(l.val)
|
|
return compression
|
|
{concat} lval.item = string(l.val)
|
|
return concat
|
|
{concat_ws} lval.item = string(l.val)
|
|
return concatWs
|
|
{connection} lval.item = string(l.val)
|
|
return connection
|
|
{connection_id} lval.item = string(l.val)
|
|
return connectionID
|
|
{constraint} return constraint
|
|
{convert} lval.item = string(l.val)
|
|
return convert
|
|
{count} lval.item = string(l.val)
|
|
return count
|
|
{create} return create
|
|
{cross} return cross
|
|
{curdate} lval.item = string(l.val)
|
|
return curDate
|
|
{current_date} lval.item = string(l.val)
|
|
return currentDate
|
|
{curtime} lval.item = string(l.val)
|
|
return curTime
|
|
{current_time} lval.item = string(l.val)
|
|
return currentTime
|
|
{current_user} lval.item = string(l.val)
|
|
return currentUser
|
|
{database} lval.item = string(l.val)
|
|
return database
|
|
{databases} return databases
|
|
{date_add} lval.item = string(l.val)
|
|
return dateAdd
|
|
{date_sub} lval.item = string(l.val)
|
|
return dateSub
|
|
{day} lval.item = string(l.val)
|
|
return day
|
|
{dayname} lval.item = string(l.val)
|
|
return dayname
|
|
{dayofweek} lval.item = string(l.val)
|
|
return dayofweek
|
|
{dayofmonth} lval.item = string(l.val)
|
|
return dayofmonth
|
|
{dayofyear} lval.item = string(l.val)
|
|
return dayofyear
|
|
{day_hour} lval.item = string(l.val)
|
|
return dayHour
|
|
{day_microsecond} lval.item = string(l.val)
|
|
return dayMicrosecond
|
|
{day_minute} lval.item = string(l.val)
|
|
return dayMinute
|
|
{day_second} lval.item = string(l.val)
|
|
return daySecond
|
|
{ddl} return ddl
|
|
{deallocate} lval.item = string(l.val)
|
|
return deallocate
|
|
{default} return defaultKwd
|
|
{delayed} return delayed
|
|
{delay_key_write} lval.item = string(l.val)
|
|
return delayKeyWrite
|
|
{delete} return deleteKwd
|
|
{desc} return desc
|
|
{describe} return describe
|
|
{drop} return drop
|
|
{distinct} return distinct
|
|
{div} return div
|
|
{do} lval.item = string(l.val)
|
|
return do
|
|
{dual} return dual
|
|
{duplicate} lval.item = string(l.val)
|
|
return duplicate
|
|
{dynamic} lval.item = string(l.val)
|
|
return dynamic
|
|
{else} return elseKwd
|
|
{end} lval.item = string(l.val)
|
|
return end
|
|
{engine} lval.item = string(l.val)
|
|
return engine
|
|
{engines} lval.item = string(l.val)
|
|
return engines
|
|
{execute} lval.item = string(l.val)
|
|
return execute
|
|
{enum} return enum
|
|
{escape} lval.item = string(l.val)
|
|
return escape
|
|
{exists} return exists
|
|
{explain} return explain
|
|
{extract} lval.item = string(l.val)
|
|
return extract
|
|
{fields} lval.item = string(l.val)
|
|
return fields
|
|
{first} lval.item = string(l.val)
|
|
return first
|
|
{fixed} lval.item = string(l.val)
|
|
return fixed
|
|
{for} return forKwd
|
|
{foreign} return foreign
|
|
{found_rows} lval.item = string(l.val)
|
|
return foundRows
|
|
{from} return from
|
|
{full} lval.item = string(l.val)
|
|
return full
|
|
{fulltext} return fulltext
|
|
{grant} return grant
|
|
{grants} lval.item = string(l.val)
|
|
return grants
|
|
{group} return group
|
|
{group_concat} lval.item = string(l.val)
|
|
return groupConcat
|
|
{hash} lval.item = string(l.val)
|
|
return hash
|
|
{having} return having
|
|
{high_priority} return highPriority
|
|
{hour} lval.item = string(l.val)
|
|
return hour
|
|
{hour_microsecond} lval.item = string(l.val)
|
|
return hourMicrosecond
|
|
{hour_minute} lval.item = string(l.val)
|
|
return hourMinute
|
|
{hour_second} lval.item = string(l.val)
|
|
return hourSecond
|
|
{identified} lval.item = string(l.val)
|
|
return identified
|
|
{if} lval.item = string(l.val)
|
|
return ifKwd
|
|
{ifnull} lval.item = string(l.val)
|
|
return ifNull
|
|
{ignore} return ignore
|
|
{index} return index
|
|
{inner} return inner
|
|
{insert} return insert
|
|
{interval} return interval
|
|
{into} return into
|
|
{in} return in
|
|
{is} return is
|
|
{isolation} lval.item = string(l.val)
|
|
return isolation
|
|
{join} return join
|
|
{key} return key
|
|
{key_block_size} lval.item = string(l.val)
|
|
return keyBlockSize
|
|
{leading} return leading
|
|
{left} lval.item = string(l.val)
|
|
return left
|
|
{length} lval.item = string(l.val)
|
|
return length
|
|
{level} lval.item = string(l.val)
|
|
return level
|
|
{like} return like
|
|
{limit} return limit
|
|
{local} lval.item = string(l.val)
|
|
return local
|
|
{locate} lval.item = string(l.val)
|
|
return locate
|
|
{lock} return lock
|
|
{lower} lval.item = string(l.val)
|
|
return lower
|
|
{low_priority} return lowPriority
|
|
{max} lval.item = string(l.val)
|
|
return max
|
|
{max_rows} lval.item = string(l.val)
|
|
return maxRows
|
|
{microsecond} lval.item = string(l.val)
|
|
return microsecond
|
|
{min} lval.item = string(l.val)
|
|
return min
|
|
{minute} lval.item = string(l.val)
|
|
return minute
|
|
{minute_microsecond} lval.item = string(l.val)
|
|
return minuteMicrosecond
|
|
{minute_second} lval.item = string(l.val)
|
|
return minuteSecond
|
|
{min_rows} lval.item = string(l.val)
|
|
return minRows
|
|
{mod} return mod
|
|
{mode} lval.item = string(l.val)
|
|
return mode
|
|
{month} lval.item = string(l.val)
|
|
return month
|
|
{names} lval.item = string(l.val)
|
|
return names
|
|
{national} lval.item = string(l.val)
|
|
return national
|
|
{not} return not
|
|
{offset} lval.item = string(l.val)
|
|
return offset
|
|
{on} return on
|
|
{only} lval.item = string(l.val)
|
|
return only
|
|
{option} return option
|
|
{order} return order
|
|
{or} return or
|
|
{outer} return outer
|
|
{password} lval.item = string(l.val)
|
|
return password
|
|
{pow} lval.item = string(l.val)
|
|
return pow
|
|
{power} lval.item = string(l.val)
|
|
return power
|
|
{prepare} lval.item = string(l.val)
|
|
return prepare
|
|
{primary} return primary
|
|
{procedure} return procedure
|
|
{quarter} lval.item = string(l.val)
|
|
return quarter
|
|
{quick} lval.item = string(l.val)
|
|
return quick
|
|
redundant lval.item = string(l.val)
|
|
return redundant
|
|
{right} return right
|
|
{rollback} lval.item = string(l.val)
|
|
return rollback
|
|
{row} lval.item = string(l.val)
|
|
return row
|
|
{row_format} lval.item = string(l.val)
|
|
return rowFormat
|
|
{schema} lval.item = string(l.val)
|
|
return schema
|
|
{schemas} return schemas
|
|
{serializable} lval.item = string(l.val)
|
|
return serializable
|
|
{session} lval.item = string(l.val)
|
|
return session
|
|
{some} lval.item = string(l.val)
|
|
return some
|
|
{start} lval.item = string(l.val)
|
|
return start
|
|
{status} lval.item = string(l.val)
|
|
return status
|
|
{global} lval.item = string(l.val)
|
|
return global
|
|
{rand} lval.item = string(l.val)
|
|
return rand
|
|
{read} return read
|
|
{repeat} lval.item = string(l.val)
|
|
return repeat
|
|
{repeatable} lval.item = string(l.val)
|
|
return repeatable
|
|
{regexp} return regexpKwd
|
|
{replace} lval.item = string(l.val)
|
|
return replace
|
|
{references} return references
|
|
{rlike} return rlike
|
|
|
|
{sys_var} lval.item = string(l.val)
|
|
return sysVar
|
|
|
|
{user_var} lval.item = string(l.val)
|
|
return userVar
|
|
{second} lval.item = string(l.val)
|
|
return second
|
|
{second_microsecond} lval.item= string(l.val)
|
|
return secondMicrosecond
|
|
{select} return selectKwd
|
|
|
|
{set} return set
|
|
{share} return share
|
|
{show} return show
|
|
{subdate} lval.item = string(l.val)
|
|
return subDate
|
|
{strcmp} lval.item = string(l.val)
|
|
return strcmp
|
|
{substr} lval.item = string(l.val)
|
|
return substring
|
|
{substring} lval.item = string(l.val)
|
|
return substring
|
|
{substring_index} lval.item = string(l.val)
|
|
return substringIndex
|
|
{sum} lval.item = string(l.val)
|
|
return sum
|
|
{sysdate} lval.item = string(l.val)
|
|
return sysDate
|
|
{table} return tableKwd
|
|
{tables} lval.item = string(l.val)
|
|
return tables
|
|
{then} return then
|
|
{to} return to
|
|
{trailing} return trailing
|
|
{transaction} lval.item = string(l.val)
|
|
return transaction
|
|
{triggers} lval.item = string(l.val)
|
|
return triggers
|
|
{trim} lval.item = string(l.val)
|
|
return trim
|
|
{truncate} lval.item = string(l.val)
|
|
return truncate
|
|
{uncommitted} lval.item = string(l.val)
|
|
return uncommitted
|
|
{union} return union
|
|
{unique} return unique
|
|
{unknown} lval.item = string(l.val)
|
|
return unknown
|
|
{nullif} lval.item = string(l.val)
|
|
return nullIf
|
|
{unlock} return unlock
|
|
{update} return update
|
|
{upper} lval.item = string(l.val)
|
|
return upper
|
|
{use} return use
|
|
{user} lval.item = string(l.val)
|
|
return user
|
|
{using} return using
|
|
{value} lval.item = string(l.val)
|
|
return value
|
|
{values} return values
|
|
{variables} lval.item = string(l.val)
|
|
return variables
|
|
{version} lval.item = string(l.val)
|
|
return version
|
|
{warnings} lval.item = string(l.val)
|
|
return warnings
|
|
{week} lval.item = string(l.val)
|
|
return week
|
|
{weekday} lval.item = string(l.val)
|
|
return weekday
|
|
{weekofyear} lval.item = string(l.val)
|
|
return weekofyear
|
|
{when} return when
|
|
{where} return where
|
|
{write} return write
|
|
{xor} return xor
|
|
{yearweek} lval.item = string(l.val)
|
|
return yearweek
|
|
{year_month} lval.item = string(l.val)
|
|
return yearMonth
|
|
|
|
{signed} lval.item = string(l.val)
|
|
return signed
|
|
{unsigned} return unsigned
|
|
{zerofill} return zerofill
|
|
|
|
{null} lval.item = nil
|
|
return null
|
|
|
|
{false} return falseKwd
|
|
|
|
{true} return trueKwd
|
|
|
|
{calc_found_rows} lval.item = string(l.val)
|
|
return calcFoundRows
|
|
|
|
{current_ts} lval.item = string(l.val)
|
|
return currentTs
|
|
{localtime} return localTime
|
|
{localts} return localTs
|
|
{now} lval.item = string(l.val)
|
|
return now
|
|
|
|
{bit} lval.item = string(l.val)
|
|
return bitType
|
|
|
|
{tiny} lval.item = string(l.val)
|
|
return tinyIntType
|
|
|
|
{tinyint} lval.item = string(l.val)
|
|
return tinyIntType
|
|
|
|
{smallint} lval.item = string(l.val)
|
|
return smallIntType
|
|
|
|
{mediumint} lval.item = string(l.val)
|
|
return mediumIntType
|
|
|
|
{bigint} lval.item = string(l.val)
|
|
return bigIntType
|
|
|
|
{decimal} lval.item = string(l.val)
|
|
return decimalType
|
|
|
|
{numeric} lval.item = string(l.val)
|
|
return numericType
|
|
|
|
{float} lval.item = string(l.val)
|
|
return floatType
|
|
|
|
{double} lval.item = string(l.val)
|
|
return doubleType
|
|
|
|
{precision} lval.item = string(l.val)
|
|
return precisionType
|
|
|
|
{real} lval.item = string(l.val)
|
|
return realType
|
|
|
|
{date} lval.item = string(l.val)
|
|
return dateType
|
|
|
|
{time} lval.item = string(l.val)
|
|
return timeType
|
|
|
|
{timestamp} lval.item = string(l.val)
|
|
return timestampType
|
|
|
|
{datetime} lval.item = string(l.val)
|
|
return datetimeType
|
|
|
|
{year} lval.item = string(l.val)
|
|
return yearType
|
|
|
|
{char} lval.item = string(l.val)
|
|
return charType
|
|
|
|
{varchar} lval.item = string(l.val)
|
|
return varcharType
|
|
|
|
{binary} lval.item = string(l.val)
|
|
return binaryType
|
|
|
|
{varbinary} lval.item = string(l.val)
|
|
return varbinaryType
|
|
|
|
{tinyblob} lval.item = string(l.val)
|
|
return tinyblobType
|
|
|
|
{blob} lval.item = string(l.val)
|
|
return blobType
|
|
|
|
{mediumblob} lval.item = string(l.val)
|
|
return mediumblobType
|
|
|
|
{longblob} lval.item = string(l.val)
|
|
return longblobType
|
|
|
|
{tinytext} lval.item = string(l.val)
|
|
return tinytextType
|
|
|
|
{mediumtext} lval.item = string(l.val)
|
|
return mediumtextType
|
|
|
|
{text} lval.item = string(l.val)
|
|
return textType
|
|
|
|
{longtext} lval.item = string(l.val)
|
|
return longtextType
|
|
|
|
{bool} lval.item = string(l.val)
|
|
return boolType
|
|
|
|
{boolean} lval.item = string(l.val)
|
|
return booleanType
|
|
|
|
{byte} lval.item = string(l.val)
|
|
return byteType
|
|
|
|
{int} lval.item = string(l.val)
|
|
return intType
|
|
|
|
{integer} lval.item = string(l.val)
|
|
return integerType
|
|
|
|
{ident} lval.item = string(l.val)
|
|
return l.handleIdent(lval)
|
|
|
|
. return c0
|
|
|
|
%%
|
|
return int(unicode.ReplacementChar)
|
|
}
|
|
|
|
func (l *lexer) npos() (line, col int) {
|
|
if line, col = l.nline, l.ncol; col == 0 {
|
|
line--
|
|
col = l.lcol+1
|
|
}
|
|
return
|
|
}
|
|
|
|
func (l *lexer) str(lval *yySymType, pref string) int {
|
|
l.sc = 0
|
|
// TODO: performance issue.
|
|
s := string(l.stringLit)
|
|
l.stringLit = l.stringLit[0:0]
|
|
if pref == "'" {
|
|
s = strings.Replace(s, "\\'", "'", -1)
|
|
s = strings.TrimSuffix(s, "'") + "\""
|
|
pref = "\""
|
|
}
|
|
v := stringutil.RemoveUselessBackslash(pref+s)
|
|
v, err := strconv.Unquote(v)
|
|
if err != nil {
|
|
v = strings.TrimSuffix(s, pref)
|
|
}
|
|
lval.item = v
|
|
return stringLit
|
|
}
|
|
|
|
func (l *lexer) trimIdent(idt string) string {
|
|
idt = strings.TrimPrefix(idt, "`")
|
|
idt = strings.TrimSuffix(idt, "`")
|
|
return idt
|
|
}
|
|
|
|
func (l *lexer) int(lval *yySymType) int {
|
|
n, err := strconv.ParseUint(string(l.val), 0, 64)
|
|
if err != nil {
|
|
l.errf("integer literal: %v", err)
|
|
return int(unicode.ReplacementChar)
|
|
}
|
|
|
|
switch {
|
|
case n < math.MaxInt64:
|
|
lval.item = int64(n)
|
|
default:
|
|
lval.item = uint64(n)
|
|
}
|
|
return intLit
|
|
}
|
|
|
|
func (l *lexer) float(lval *yySymType) int {
|
|
n, err := strconv.ParseFloat(string(l.val), 64)
|
|
if err != nil {
|
|
l.errf("float literal: %v", err)
|
|
return int(unicode.ReplacementChar)
|
|
}
|
|
|
|
lval.item = float64(n)
|
|
return floatLit
|
|
}
|
|
|
|
// https://dev.mysql.com/doc/refman/5.7/en/hexadecimal-literals.html
|
|
func (l *lexer) hex(lval *yySymType) int {
|
|
s := string(l.val)
|
|
h, err := mysql.ParseHex(s)
|
|
if err != nil {
|
|
l.errf("hexadecimal literal: %v", err)
|
|
return int(unicode.ReplacementChar)
|
|
}
|
|
lval.item = h
|
|
return hexLit
|
|
}
|
|
|
|
// https://dev.mysql.com/doc/refman/5.7/en/bit-type.html
|
|
func (l *lexer) bit(lval *yySymType) int {
|
|
s := string(l.val)
|
|
b, err := mysql.ParseBit(s, -1)
|
|
if err != nil {
|
|
l.errf("bit literal: %v", err)
|
|
return int(unicode.ReplacementChar)
|
|
}
|
|
lval.item = b
|
|
return bitLit
|
|
}
|
|
|
|
func (l *lexer) handleIdent(lval *yySymType) int {
|
|
s := lval.item.(string)
|
|
// A character string literal may have an optional character set introducer and COLLATE clause:
|
|
// [_charset_name]'string' [COLLATE collation_name]
|
|
// See: https://dev.mysql.com/doc/refman/5.7/en/charset-literal.html
|
|
if !strings.HasPrefix(s, "_") {
|
|
return identifier
|
|
}
|
|
cs, _, err := charset.GetCharsetInfo(s[1:])
|
|
if err != nil {
|
|
return identifier
|
|
}
|
|
lval.item = cs
|
|
return underscoreCS
|
|
}
|