mirror of
https://github.com/go-gitea/gitea
synced 2025-11-04 05:18:25 +00:00
63 lines
1.4 KiB
Go
63 lines
1.4 KiB
Go
// Copyright (c) 2017 Couchbase, 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,
|
|
// 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 regexp
|
|
|
|
import "fmt"
|
|
|
|
// instOp represents a instruction operation
|
|
type instOp int
|
|
|
|
// the enumeration of operations
|
|
const (
|
|
OpMatch instOp = iota
|
|
OpJmp
|
|
OpSplit
|
|
OpRange
|
|
)
|
|
|
|
// instSize is the approxmiate size of the an inst struct in bytes
|
|
const instSize = 40
|
|
|
|
type inst struct {
|
|
op instOp
|
|
to uint
|
|
splitA uint
|
|
splitB uint
|
|
rangeStart byte
|
|
rangeEnd byte
|
|
}
|
|
|
|
func (i *inst) String() string {
|
|
switch i.op {
|
|
case OpJmp:
|
|
return fmt.Sprintf("JMP: %d", i.to)
|
|
case OpSplit:
|
|
return fmt.Sprintf("SPLIT: %d - %d", i.splitA, i.splitB)
|
|
case OpRange:
|
|
return fmt.Sprintf("RANGE: %x - %x", i.rangeStart, i.rangeEnd)
|
|
}
|
|
return "MATCH"
|
|
}
|
|
|
|
type prog []*inst
|
|
|
|
func (p prog) String() string {
|
|
rv := "\n"
|
|
for i, pi := range p {
|
|
rv += fmt.Sprintf("%d %v\n", i, pi)
|
|
}
|
|
return rv
|
|
}
|