hcl/json/didyoumean.go
Martin Atkins 6c4344623b Unfold the "hcl" directory up into the root
The main HCL package is more visible this way, and so it's easier than
having to pick it out from dozens of other package directories.
2019-09-09 16:08:19 -07:00

34 lines
1.1 KiB
Go

package json
import (
"github.com/agext/levenshtein"
)
var keywords = []string{"false", "true", "null"}
// keywordSuggestion tries to find a valid JSON keyword that is close to the
// given string and returns it if found. If no keyword is close enough, returns
// the empty string.
func keywordSuggestion(given string) string {
return nameSuggestion(given, keywords)
}
// nameSuggestion tries to find a name from the given slice of suggested names
// that is close to the given name and returns it if found. If no suggestion
// is close enough, returns the empty string.
//
// The suggestions are tried in order, so earlier suggestions take precedence
// if the given string is similar to two or more suggestions.
//
// This function is intended to be used with a relatively-small number of
// suggestions. It's not optimized for hundreds or thousands of them.
func nameSuggestion(given string, suggestions []string) string {
for _, suggestion := range suggestions {
dist := levenshtein.Distance(given, suggestion, nil)
if dist < 3 { // threshold determined experimentally
return suggestion
}
}
return ""
}