Contents

package wordcount

import (
	"regexp"
	"strings"
)

// Frequency is a map of the frequency of occurrence keyed to the unique word.
type Frequency map[string]int

// WordCount returns the map of frequency of words based on the input phrase.
func WordCount(phrase string) Frequency {
	freq := Frequency{}
	for _, word := range strings.Fields(normalize(phrase)) {
		word = strings.Trim(word, "'")
		freq[word]++
	}
	return freq
}

func normalize(phrase string) string {
	//  Allow for apostrophes in words.
	r, _ := regexp.Compile(`[^\w|']`)
	phrase = strings.ToLower(phrase)
	return r.ReplaceAllLiteralString(phrase, " ")
}

Version data entries

122 entries across 122 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/go/exercises/word-count/example.go
trackler-2.2.1.179	tracks/go/exercises/word-count/example.go
trackler-2.2.1.178	tracks/go/exercises/word-count/example.go
trackler-2.2.1.177	tracks/go/exercises/word-count/example.go
trackler-2.2.1.176	tracks/go/exercises/word-count/example.go
trackler-2.2.1.175	tracks/go/exercises/word-count/example.go
trackler-2.2.1.174	tracks/go/exercises/word-count/example.go
trackler-2.2.1.173	tracks/go/exercises/word-count/example.go
trackler-2.2.1.172	tracks/go/exercises/word-count/example.go
trackler-2.2.1.171	tracks/go/exercises/word-count/example.go
trackler-2.2.1.170	tracks/go/exercises/word-count/example.go
trackler-2.2.1.169	tracks/go/exercises/word-count/example.go
trackler-2.2.1.167	tracks/go/exercises/word-count/example.go
trackler-2.2.1.166	tracks/go/exercises/word-count/example.go
trackler-2.2.1.165	tracks/go/exercises/word-count/example.go
trackler-2.2.1.164	tracks/go/exercises/word-count/example.go
trackler-2.2.1.163	tracks/go/exercises/word-count/example.go
trackler-2.2.1.162	tracks/go/exercises/word-count/example.go
trackler-2.2.1.161	tracks/go/exercises/word-count/example.go
trackler-2.2.1.160	tracks/go/exercises/word-count/example.go