Files
SugarDB/internal/modules/string/key_funcs.go
2024-06-26 23:01:01 -04:00

67 lines
2.0 KiB
Go

// Copyright 2024 Kelvin Clement Mwinuka
//
// 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package str
import (
"errors"
"github.com/echovault/echovault/internal"
"github.com/echovault/echovault/internal/constants"
)
func setRangeKeyFunc(cmd []string) (internal.KeyExtractionFuncResult, error) {
if len(cmd) != 4 {
return internal.KeyExtractionFuncResult{}, errors.New(constants.WrongArgsResponse)
}
return internal.KeyExtractionFuncResult{
Channels: make([]string, 0),
ReadKeys: make([]string, 0),
WriteKeys: cmd[1:2],
}, nil
}
func strLenKeyFunc(cmd []string) (internal.KeyExtractionFuncResult, error) {
if len(cmd) != 2 {
return internal.KeyExtractionFuncResult{}, errors.New(constants.WrongArgsResponse)
}
return internal.KeyExtractionFuncResult{
Channels: make([]string, 0),
ReadKeys: cmd[1:2],
WriteKeys: make([]string, 0),
}, nil
}
func subStrKeyFunc(cmd []string) (internal.KeyExtractionFuncResult, error) {
if len(cmd) != 4 {
return internal.KeyExtractionFuncResult{}, errors.New(constants.WrongArgsResponse)
}
return internal.KeyExtractionFuncResult{
Channels: make([]string, 0),
ReadKeys: cmd[1:2],
WriteKeys: make([]string, 0),
}, nil
}
func appendKeyFunc(cmd []string) (internal.KeyExtractionFuncResult, error) {
if len(cmd) != 3 {
return internal.KeyExtractionFuncResult{}, errors.New(constants.WrongArgsResponse)
}
return internal.KeyExtractionFuncResult{
Channels: make([]string, 0),
ReadKeys: make([]string, 0),
WriteKeys: cmd[1:2],
}, nil
}