Add proper furigana

dict/.gitignore

@@ -1,2 +1,3 @@
 JMdict.xml
+JmdictFurigana.txt
 dict.bin

dict/README.md

@@ -9,6 +9,13 @@ Its primary goals are:
 
 ### Configuration
 
+#### JMdict
+
 1. [Download the latest version of JMdict](https://www.edrdg.org/wiki/index.php/JMdict-EDICT_Dictionary_Project#CURRENT_VERSION_&_DOWNLOAD). For development, download the file with only English glosses, which will substantially decrease parsing time.
 2. Extract the archive
-3. Rename the file to JMDict.xml
+3. Rename the file to JMDict.xml
+
+#### JmdictFurigana
+
+1. [Download the latest version of JmdictFurigana.txt](https://github.com/Doublevil/JmdictFurigana/releases)
+2. Ensure it's named JmdictFurigana.txt.

dict/main.go

@@ -1,12 +1,14 @@
 package main
 
 import (
+	"bufio"
 	"encoding/gob"
 	"encoding/json"
 	"fmt"
 	"log"
 	"net/http"
 	"os"
+	"strconv"
 	"strings"
 
 	"foosoft.net/projects/jmdict"
@@ -41,9 +43,30 @@ func LoadDict() error {
 	if err != nil {
 		return err
 	}
+
+	const jmdictFuriganaFile = "JmdictFurigana.txt"
+	reader, err = os.Open(jmdictFuriganaFile)
+	if err != nil {
+		return err
+	}
+	scanner := bufio.NewScanner(reader)
+	furiganaData := make(map[string]string)
+	for scanner.Scan() {
+		params := strings.Split(scanner.Text(), "|")
+		furiganaData[params[0]] = params[2]
+	}
+
 	dict = make(map[string]Entry)
 	for _, jmdictEntry := range jmdict.Entries {
-		entry := ParseEntry(&jmdictEntry)
+		// お願い致します|おねがいいたします|1:ねが;3:いた
+		var furiganaInfo *string
+		if len(jmdictEntry.Kanji) > 0 {
+			data := furiganaData[jmdictEntry.Kanji[0].Expression]
+			furiganaInfo = &data
+		} else {
+			furiganaInfo = nil
+		}
+		entry := ParseEntry(&jmdictEntry, furiganaInfo)
 		dict[entry.Kanji] = entry
 	}
 
@@ -62,8 +85,15 @@ func LoadDict() error {
 	return nil
 }
 
+type Furigana struct {
+	Kanji    string
+	Furigana string
+}
+
 type Entry struct {
-	Kanji       string
+	Kanji string
+	// Mapping of character index to furigana
+	Furigana    []Furigana
 	Reading     string
 	Definitions []Definition
 }
@@ -73,7 +103,7 @@ type Definition struct {
 	PartOfSpeech []string
 }
 
-func ParseEntry(entry *jmdict.JmdictEntry) Entry {
+func ParseEntry(entry *jmdict.JmdictEntry, furiganaInfo *string) Entry {
 	kanji := ""
 	if len(entry.Kanji) > 0 {
 		kanji = entry.Kanji[0].Expression
@@ -96,8 +126,64 @@ func ParseEntry(entry *jmdict.JmdictEntry) Entry {
 			PartOfSpeech: sense.PartsOfSpeech,
 		}
 	}
+	// 1:ねが;3:いた
+	var furiganaList []Furigana
+	if kanji == "" || *furiganaInfo == "" {
+		furiganaList = []Furigana{{Kanji: reading, Furigana: ""}}
+	} else {
+		furiganaEntries := strings.Split(*furiganaInfo, ";")
+		// ["1:ねが", "3:いた"]
+		type rawFurigana struct {
+			from     int
+			to       int
+			furigana string
+		}
+		ruby := make([]rawFurigana, 0)
+		for _, entry := range furiganaEntries {
+			// 1:ねが
+			// multiple: 0-1:きょう
+			params := strings.Split(entry, ":")
+			// ["1", "ねが"]
+			// multiple: ["0-1", "きょう"]
+			indexRange := strings.Split(params[0], "-")
+			// [1]
+			// multiple: [0, 1]
+			var from, to int
+			if len(indexRange) == 1 {
+				index, _ := strconv.Atoi(indexRange[0])
+				from, to = index, index
+			} else {
+				from, _ = strconv.Atoi(indexRange[0])
+				to, _ = strconv.Atoi(indexRange[1])
+			}
+			ruby = append(ruby, rawFurigana{
+				from:     from,
+				to:       to,
+				furigana: params[1],
+			})
+		}
+		furiganaList = make([]Furigana, 0)
+		slice := func(from, to int) string {
+			return string([]rune(kanji)[from : to+1])
+		}
+		nextIndex := 0
+		for _, raw := range ruby {
+			if raw.from > nextIndex {
+				furiganaList = append(furiganaList, Furigana{
+					Kanji:    slice(nextIndex, raw.from-1),
+					Furigana: "",
+				})
+			}
+			furiganaList = append(furiganaList, Furigana{
+				Kanji:    slice(raw.from, raw.to),
+				Furigana: raw.furigana,
+			})
+			nextIndex = raw.to + 1
+		}
+	}
 	return Entry{
 		Kanji:       kanji,
+		Furigana:    furiganaList,
 		Reading:     reading,
 		Definitions: definitions,
 	}

dict/templates/partials/entry.html

@@ -1,11 +1,15 @@
 {{ define "entry" }}
 <div class="box">
-    <h3>
-        {{- if .Kanji -}}
-        <a href="/word/{{ .Kanji }}"><ruby>{{- .Kanji -}}<rp>(</rp><rt>{{- .Reading -}}</rt><rp>)</rp></ruby></a>
-        {{- else -}}
-        {{- .Reading -}}
+    <h3 lang="ja">
+        <a href="/word/{{ .Kanji }}">
+        {{- range .Furigana -}}
+            {{- if .Furigana -}}
+                <ruby>{{- .Kanji -}}<rp>(</rp><rt>{{- .Furigana -}}</rt><rp>)</rp></ruby>
+            {{- else -}}
+                {{- .Kanji -}}
+            {{- end -}}
         {{- end -}}
+        </a>
     </h3>
     {{- $count := len .Definitions -}}
     {{ if eq $count 1 -}}

dict/templates/partials/entryfull.html

@@ -1,11 +1,15 @@
 {{ define "entryfull" }}
 <div class="box">
-    <h3>
-        {{- if .Kanji -}}
-        <ruby>{{- .Kanji -}}<rp>(</rp><rt>{{- .Reading -}}</rt><rp>)</rp></ruby>
-        {{- else -}}
-        {{- .Reading -}}
+    <h3 lang="ja">
+        <a href="/word/{{ .Kanji }}">
+        {{- range .Furigana -}}
+            {{- if .Furigana -}}
+                <ruby>{{- .Kanji -}}<rp>(</rp><rt>{{- .Furigana -}}</rt><rp>)</rp></ruby>
+            {{- else -}}
+                {{- .Kanji -}}
+            {{- end -}}
         {{- end -}}
+        </a>
     </h3>
     {{- $count := len .Definitions -}}
     {{ if eq $count 1 -}}