github.com/siglens/siglens@v0.0.0-20240328180423-f7ce9ae441ed/pkg/utils/stringutils.go (about)

     1  /*
     2  Copyright 2023.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package utils
    18  
    19  import (
    20  	"regexp"
    21  	"strings"
    22  
    23  	"github.com/siglens/siglens/pkg/common/dtypeutils"
    24  	log "github.com/sirupsen/logrus"
    25  )
    26  
    27  // Converts a string like `This has "quotes"` to `This has \"quotes\"`
    28  func EscapeQuotes(s string) string {
    29  	result := ""
    30  	for _, ch := range s {
    31  		if ch == '"' {
    32  			result += "\\"
    33  		}
    34  
    35  		result += string(ch)
    36  	}
    37  
    38  	return result
    39  }
    40  
    41  // Return all strings in `slice` that match `s`, which may have wildcards.
    42  func SelectMatchingStringsWithWildcard(s string, slice []string) []string {
    43  	if strings.Contains(s, "*") {
    44  		s = dtypeutils.ReplaceWildcardStarWithRegex(s)
    45  	}
    46  
    47  	// We only want exact matches.
    48  	s = "^" + s + "$"
    49  
    50  	compiledRegex, err := regexp.Compile(s)
    51  	if err != nil {
    52  		log.Errorf("SelectMatchingStringsWithWildcard: regex compile failed: %v", err)
    53  		return nil
    54  	}
    55  
    56  	matches := make([]string, 0)
    57  	for _, potentialMatch := range slice {
    58  		if compiledRegex.MatchString(potentialMatch) {
    59  			matches = append(matches, potentialMatch)
    60  		}
    61  	}
    62  
    63  	return matches
    64  }