mirror of
https://github.com/go-gitea/gitea
synced 2024-11-17 23:41:49 +01:00
b6a95a8cb3
* Dropped unused codekit config * Integrated dynamic and static bindata for public * Ignore public bindata * Add a general generate make task * Integrated flexible public assets into web command * Updated vendoring, added all missiong govendor deps * Made the linter happy with the bindata and dynamic code * Moved public bindata definition to modules directory * Ignoring the new bindata path now * Updated to the new public modules import path * Updated public bindata command and drop the new prefix
85 lines
2.1 KiB
Go
85 lines
2.1 KiB
Go
// Copyright 2015 PingCAP, Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package mysql
|
|
|
|
import (
|
|
"encoding/hex"
|
|
"fmt"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/juju/errors"
|
|
)
|
|
|
|
// Hex is for mysql hexadecimal literal type.
|
|
type Hex struct {
|
|
// Value holds numeric value for hexadecimal literal.
|
|
Value int64
|
|
}
|
|
|
|
// String implements fmt.Stringer interface.
|
|
func (h Hex) String() string {
|
|
s := fmt.Sprintf("%X", h.Value)
|
|
if len(s)%2 != 0 {
|
|
return "0x0" + s
|
|
}
|
|
|
|
return "0x" + s
|
|
}
|
|
|
|
// ToNumber changes hexadecimal type to float64 for numeric operation.
|
|
// MySQL treats hexadecimal literal as double type.
|
|
func (h Hex) ToNumber() float64 {
|
|
return float64(h.Value)
|
|
}
|
|
|
|
// ToString returns the string representation for hexadecimal literal.
|
|
func (h Hex) ToString() string {
|
|
s := fmt.Sprintf("%x", h.Value)
|
|
if len(s)%2 != 0 {
|
|
s = "0" + s
|
|
}
|
|
|
|
// should never error.
|
|
b, _ := hex.DecodeString(s)
|
|
return string(b)
|
|
}
|
|
|
|
// ParseHex parses hexadecimal literal string.
|
|
// The string format can be X'val', x'val' or 0xval.
|
|
// val must in (0...9, a...z, A...Z).
|
|
func ParseHex(s string) (Hex, error) {
|
|
if len(s) == 0 {
|
|
return Hex{}, errors.Errorf("invalid empty string for parsing hexadecimal literal")
|
|
}
|
|
|
|
if s[0] == 'x' || s[0] == 'X' {
|
|
// format is x'val' or X'val'
|
|
s = strings.Trim(s[1:], "'")
|
|
if len(s)%2 != 0 {
|
|
return Hex{}, errors.Errorf("invalid hexadecimal format, must even numbers, but %d", len(s))
|
|
}
|
|
s = "0x" + s
|
|
} else if !strings.HasPrefix(s, "0x") {
|
|
// here means format is not x'val', X'val' or 0xval.
|
|
return Hex{}, errors.Errorf("invalid hexadecimal format %s", s)
|
|
}
|
|
|
|
n, err := strconv.ParseInt(s, 0, 64)
|
|
if err != nil {
|
|
return Hex{}, errors.Trace(err)
|
|
}
|
|
|
|
return Hex{Value: n}, nil
|
|
}
|