From cd85c4935ebcba040db551a4af5d50d6ba4222d8 Mon Sep 17 00:00:00 2001
From: Austin Liew <flamerokz@gmail.com>
Date: Tue, 21 Mar 2017 02:08:12 -0400
Subject: [PATCH] add epwing support for kotowaza

---
 epwing.go   |   1 +
 kotowaza.go | 123 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 124 insertions(+)
 create mode 100644 kotowaza.go

diff --git a/epwing.go b/epwing.go
index efc4d24..b9266cc 100644
--- a/epwing.go
+++ b/epwing.go
@@ -134,6 +134,7 @@ func epwingExportDb(inputPath, outputDir, title string, stride int, pretty bool)
 		"三省堂　スーパー大辞林":    makeDaijirinExtractor(),
 		"大辞泉":            makeDaijisenExtractor(),
 		"明鏡国語辞典":         makeMeikyouExtractor(),
+		"故事ことわざの辞典":      makeKotowazaExtractor(),
 		"研究社　新和英大辞典　第５版": makeWadaiExtractor(),
 	}
 
diff --git a/kotowaza.go b/kotowaza.go
new file mode 100644
index 0000000..0c85a2f
--- /dev/null
+++ b/kotowaza.go
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2017 Alex Yatskov <alex@foosoft.net>, ajyliew
+ * Author: ajyliew
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package main
+
+import (
+	"regexp"
+	"strings"
+)
+
+type kotowazaExtractor struct {
+	readGroupExp       *regexp.Regexp
+	readGroupAltsExp   *regexp.Regexp
+	readGroupNoAltsExp *regexp.Regexp
+	wordGroupExp       *regexp.Regexp
+}
+
+func makeKotowazaExtractor() epwingExtractor {
+	return &kotowazaExtractor{
+		readGroupExp:       regexp.MustCompile(`([^ぁ-ゖァ-ヺ]*)(\([^)]*\))`),
+		readGroupAltsExp:   regexp.MustCompile(`\(([^)]*)\)`),
+		readGroupNoAltsExp: regexp.MustCompile(`\(([^・)]*)\)`),
+		wordGroupExp:       regexp.MustCompile(`＝([^〔＝]*)〔＝([^〕]*)〕`),
+	}
+}
+
+func (e *kotowazaExtractor) extractTerms(entry epwingEntry) []dbTerm {
+	heading := entry.Heading
+
+	queue := []string{heading}
+	reducedExpressions := []string{}
+
+	for len(queue) > 0 {
+		expression := queue[0]
+		queue = queue[1:]
+
+		matches := e.wordGroupExp.FindStringSubmatch(expression)
+		if matches == nil {
+			reducedExpressions = append(reducedExpressions, expression)
+		} else {
+			replacements := []string{matches[1]}
+			replacements = append(replacements, strings.Split(matches[2], "・")...)
+			for _, replacement := range replacements {
+				queue = append(queue, strings.Replace(expression, matches[0], replacement, -1))
+			}
+		}
+	}
+
+	var terms []dbTerm
+	for _, reducedExpression := range reducedExpressions {
+		expression := e.readGroupExp.ReplaceAllString(reducedExpression, "$1")
+		readAltsExpression := e.readGroupExp.ReplaceAllString(reducedExpression, "$2")
+		readAltsExpression = e.readGroupNoAltsExp.ReplaceAllString(readAltsExpression, "$1")
+
+		var readings []string
+		queue = []string{readAltsExpression}
+		for len(queue) > 0 {
+			readExpression := queue[0]
+			queue = queue[1:]
+
+			matches := e.readGroupAltsExp.FindStringSubmatch(readExpression)
+			if matches == nil {
+				readings = append(readings, readExpression)
+			} else {
+				replacements := strings.Split(matches[1], "・")
+				for _, replacement := range replacements {
+					queue = append(queue, strings.Replace(readExpression, matches[0], replacement, -1))
+				}
+			}
+		}
+
+		for _, reading := range readings {
+			term := dbTerm{
+				Expression: expression,
+				Reading:    reading,
+				Glossary:   []string{entry.Text},
+			}
+
+			terms = append(terms, term)
+		}
+
+	}
+
+	return terms
+}
+
+func (e *kotowazaExtractor) extractKanji(entry epwingEntry) []dbKanji {
+	return nil
+}
+
+func (e *kotowazaExtractor) exportRules(term *dbTerm, tags []string) {
+}
+
+func (*kotowazaExtractor) getRevision() string {
+	return "kotowaza1"
+}
+
+func (*kotowazaExtractor) getFontNarrow() map[int]string {
+	return map[int]string{}
+}
+
+func (*kotowazaExtractor) getFontWide() map[int]string {
+	return map[int]string{}
+}