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common.go
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common.go
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package rikaitan
import (
"archive/zip"
"bytes"
"encoding/json"
"errors"
"fmt"
"os"
"path/filepath"
"strings"
"golang.org/x/exp/slices"
)
const (
DefaultFormat = ""
DefaultLanguage = ""
DefaultPretty = false
DefaultStride = 10000
DefaultTitle = ""
)
type dbRecord []any
type dbRecordList []dbRecord
type dbTag struct {
Name string
Category string
Order int
Notes string
Score int
}
type dbTagList []dbTag
func (meta dbTagList) crush() dbRecordList {
var results dbRecordList
for _, m := range meta {
results = append(results, dbRecord{m.Name, m.Category, m.Order, m.Notes, m.Score})
}
return results
}
type dbMeta struct {
Expression string
Mode string
Data any
}
type dbMetaList []dbMeta
func (freqs dbMetaList) crush() dbRecordList {
var results dbRecordList
for _, f := range freqs {
results = append(results, dbRecord{f.Expression, f.Mode, f.Data})
}
return results
}
type dbTerm struct {
Expression string
Reading string
DefinitionTags []string
Rules []string
Score int
Glossary []any
Sequence int
TermTags []string
}
type dbTermList []dbTerm
func (term *dbTerm) addDefinitionTags(tags ...string) {
term.DefinitionTags = appendStringUnique(term.DefinitionTags, tags...)
}
func (term *dbTerm) addTermTags(tags ...string) {
term.TermTags = appendStringUnique(term.TermTags, tags...)
}
func (term *dbTerm) addRules(rules ...string) {
term.Rules = appendStringUnique(term.Rules, rules...)
}
func (terms dbTermList) crush() dbRecordList {
var results dbRecordList
for _, t := range terms {
result := dbRecord{
t.Expression,
t.Reading,
strings.Join(t.DefinitionTags, " "),
strings.Join(t.Rules, " "),
t.Score,
t.Glossary,
t.Sequence,
strings.Join(t.TermTags, " "),
}
results = append(results, result)
}
return results
}
type dbKanji struct {
Character string
Onyomi []string
Kunyomi []string
Tags []string
Meanings []string
Stats map[string]string
}
type dbKanjiList []dbKanji
func (kanji *dbKanji) addTags(tags ...string) {
for _, tag := range tags {
if !slices.Contains(kanji.Tags, tag) {
kanji.Tags = append(kanji.Tags, tag)
}
}
}
func (kanji dbKanjiList) crush() dbRecordList {
var results dbRecordList
for _, k := range kanji {
result := dbRecord{
k.Character,
strings.Join(k.Onyomi, " "),
strings.Join(k.Kunyomi, " "),
strings.Join(k.Tags, " "),
k.Meanings,
k.Stats,
}
results = append(results, result)
}
return results
}
type dbIndex struct {
Title string `json:"title"`
Format int `json:"format"`
Revision string `json:"revision"`
Sequenced bool `json:"sequenced"`
Author string `json:"author"`
Url string `json:"url"`
Description string `json:"description"`
Attribution string `json:"attribution"`
}
func (index *dbIndex) setDefaults() {
if index.Format == 0 {
index.Format = 3
}
if index.Author == "" {
index.Author = "rikaitan-import"
}
if index.Url == "" {
index.Url = "https://github.com/Ajatt-Tools/rikaitan-import"
}
}
func writeDb(outputPath string, index dbIndex, recordData map[string]dbRecordList, stride int, pretty bool) error {
var zbuff bytes.Buffer
zip := zip.NewWriter(&zbuff)
marshalJSON := func(obj any, pretty bool) ([]byte, error) {
if pretty {
return json.MarshalIndent(obj, "", " ")
}
return json.Marshal(obj)
}
writeDbRecords := func(prefix string, records dbRecordList) (int, error) {
recordCount := len(records)
bankCount := 0
for i := 0; i < recordCount; i += stride {
indexSrc := i
indexDst := i + stride
if indexDst > recordCount {
indexDst = recordCount
}
bytes, err := marshalJSON(records[indexSrc:indexDst], pretty)
if err != nil {
return 0, err
}
zw, err := zip.Create(fmt.Sprintf("%s_bank_%d.json", prefix, i/stride+1))
if err != nil {
return 0, err
}
if _, err := zw.Write(bytes); err != nil {
return 0, err
}
bankCount++
}
return bankCount, nil
}
var err error
for recordType, recordEntries := range recordData {
if _, err := writeDbRecords(recordType, recordEntries); err != nil {
return err
}
}
index.setDefaults()
bytes, err := marshalJSON(index, pretty)
if err != nil {
return err
}
zw, err := zip.Create("index.json")
if err != nil {
return err
}
if _, err := zw.Write(bytes); err != nil {
return err
}
zip.Close()
fp, err := os.Create(outputPath)
if err != nil {
return err
}
if _, err := fp.Write(zbuff.Bytes()); err != nil {
return err
}
return fp.Close()
}
func appendStringUnique(target []string, source ...string) []string {
for _, str := range source {
if !slices.Contains(target, str) {
target = append(target, str)
}
}
return target
}
func intersection(s1, s2 []string) []string {
s := []string{}
m := make(map[string]bool)
for _, e := range s1 {
m[e] = true
}
for _, e := range s2 {
if m[e] {
s = append(s, e)
m[e] = false
}
}
return s
}
func union(s1, s2 []string) []string {
s := []string{}
m := make(map[string]bool)
for _, e := range s1 {
if !m[e] {
s = append(s, e)
m[e] = true
}
}
for _, e := range s2 {
if !m[e] {
s = append(s, e)
m[e] = true
}
}
return s
}
func detectFormat(path string) (string, error) {
switch filepath.Ext(path) {
case ".sqlite":
return "rikai", nil
case ".kanjifreq":
return "kanjifreq", nil
case ".termfreq":
return "termfreq", nil
}
switch filepath.Base(path) {
case "JMdict", "JMdict.xml", "JMdict_e", "JMdict_e.xml", "JMdict_e_examp":
return "edict", nil
case "JMnedict", "JMnedict.xml":
return "enamdict", nil
case "kanjidic2", "kanjidic2.xml":
return "kanjidic", nil
}
info, err := os.Stat(path)
if err != nil {
return "", err
}
if info.IsDir() {
_, err := os.Stat(filepath.Join(path, "CATALOGS"))
if err == nil {
return "epwing", nil
}
_, err = os.Stat(filepath.Join(path, "catalogs"))
if err == nil {
return "epwing", nil
}
}
return "", errors.New("unrecognized dictionary format")
}
func ExportDb(inputPath, outputPath, format, language, title string, stride int, pretty bool) error {
handlers := map[string]func(string, string, string, string, int, bool) error{
"edict": jmdictExportDb,
"forms": formsExportDb,
"enamdict": jmnedictExportDb,
"epwing": epwingExportDb,
"kanjidic": kanjidicExportDb,
"rikai": rikaiExportDb,
"kanjifreq": frequencyKanjiExportDb,
"termfreq": frequencyTermsExportDb,
}
var err error
if format == DefaultFormat {
if format, err = detectFormat(inputPath); err != nil {
return err
}
}
handler, ok := handlers[strings.ToLower(format)]
if !ok {
return errors.New("unrecognized dictionary format")
}
return handler(inputPath, outputPath, strings.ToLower(language), title, stride, pretty)
}