pull/1511/head
gedoor 3 years ago
parent ac2eda9809
commit 27535803e4
  1. 3
      app/src/main/java/io/legado/app/data/dao/TxtTocRuleDao.kt
  2. 85
      app/src/main/java/io/legado/app/model/localBook/TextFile.kt

@ -16,6 +16,9 @@ interface TxtTocRuleDao {
@get:Query("select * from txtTocRules where enable = 1 order by serialNumber") @get:Query("select * from txtTocRules where enable = 1 order by serialNumber")
val enabled: List<TxtTocRule> val enabled: List<TxtTocRule>
@get:Query("select * from txtTocRules where enable != 1 order by serialNumber")
val disabled: List<TxtTocRule>
@get:Query("select ifNull(min(serialNumber), 0) from txtTocRules") @get:Query("select ifNull(min(serialNumber), 0) from txtTocRules")
val minOrder: Int val minOrder: Int

@ -16,6 +16,28 @@ import java.util.regex.Pattern
class TextFile(private val book: Book) { class TextFile(private val book: Book) {
companion object {
@Throws(FileNotFoundException::class)
fun getChapterList(book: Book): ArrayList<BookChapter> {
return TextFile(book).getChapterList()
}
@Throws(FileNotFoundException::class)
fun getContent(book: Book, bookChapter: BookChapter): String {
val count = (bookChapter.end!! - bookChapter.start!!).toInt()
val buffer = ByteArray(count)
LocalBook.getBookInputStream(book).use { bis ->
bis.skip(bookChapter.start!!)
bis.read(buffer)
}
return String(buffer, book.fileCharset())
.substringAfter(bookChapter.title)
.replace("^[\\n\\s]+".toRegex(), "  ")
}
}
private val blank: Byte = 0x0a private val blank: Byte = 0x0a
//默认从文件中获取数据的长度 //默认从文件中获取数据的长度
@ -24,7 +46,7 @@ class TextFile(private val book: Book) {
//没有标题的时候,每个章节的最大长度 //没有标题的时候,每个章节的最大长度
private val maxLengthWithNoToc = 10 * 1024 private val maxLengthWithNoToc = 10 * 1024
private val tocRules = arrayListOf<TxtTocRule>() private val tocRules = arrayListOf<Pattern>()
private var charset: Charset = book.fileCharset() private var charset: Charset = book.fileCharset()
@Throws(FileNotFoundException::class) @Throws(FileNotFoundException::class)
@ -45,7 +67,7 @@ class TextFile(private val book: Book) {
book.charset = EncodingDetect.getEncode(buffer) book.charset = EncodingDetect.getEncode(buffer)
blockContent = String(buffer, 0, length, charset) blockContent = String(buffer, 0, length, charset)
} }
getTocRule(blockContent)?.rule?.toPattern(Pattern.MULTILINE) getTocRule(blockContent)
} }
} }
} else { } else {
@ -183,9 +205,8 @@ class TextFile(private val book: Book) {
} }
private fun analyze(): ArrayList<BookChapter> { private fun analyze(): ArrayList<BookChapter> {
tocRules.removeFirstOrNull() nextTocRule()?.let {
tocRules.firstOrNull()?.let { return analyze(it)
return analyze(it.rule.toPattern(Pattern.MULTILINE))
} }
val toc = arrayListOf<BookChapter>() val toc = arrayListOf<BookChapter>()
LocalBook.getBookInputStream(book).use { bis -> LocalBook.getBookInputStream(book).use { bis ->
@ -266,13 +287,24 @@ class TextFile(private val book: Book) {
return toc return toc
} }
/** private fun getTocRule(content: String): Pattern? {
* 获取匹配次数最多的目录规则 tocRules.addAll(getTocRules(content, true))
*/ tocRules.addAll(getTocRules(content, false))
private fun getTocRule(content: String): TxtTocRule? { return tocRules.firstOrNull()
tocRules.clear() }
val rules = getTocRules().reversed()
var txtTocRule: TxtTocRule? = null private fun nextTocRule(): Pattern? {
tocRules.removeFirstOrNull()
return tocRules.firstOrNull()
}
private fun getTocRules(content: String, isMain: Boolean): ArrayList<Pattern> {
val list = arrayListOf<Pattern>()
val rules = if (isMain) {
getTocRules().reversed()
} else {
appDb.txtTocRuleDao.disabled.reversed()
}
var maxCs = 0 var maxCs = 0
for (tocRule in rules) { for (tocRule in rules) {
val pattern = Pattern.compile(tocRule.rule, Pattern.MULTILINE) val pattern = Pattern.compile(tocRule.rule, Pattern.MULTILINE)
@ -282,34 +314,13 @@ class TextFile(private val book: Book) {
cs++ cs++
} }
if (cs >= maxCs) { if (cs >= maxCs) {
tocRules.add(0, tocRule)
maxCs = cs maxCs = cs
txtTocRule = tocRule list.add(0, pattern)
} else if (cs > 0) { } else if (cs > 0) {
tocRules.add(tocRule) list.add(pattern)
}
}
return txtTocRule
}
companion object {
@Throws(FileNotFoundException::class)
fun getChapterList(book: Book): ArrayList<BookChapter> {
return TextFile(book).getChapterList()
} }
@Throws(FileNotFoundException::class)
fun getContent(book: Book, bookChapter: BookChapter): String {
val count = (bookChapter.end!! - bookChapter.start!!).toInt()
val buffer = ByteArray(count)
LocalBook.getBookInputStream(book).use { bis ->
bis.skip(bookChapter.start!!)
bis.read(buffer)
} }
return String(buffer, book.fileCharset()) return list
.substringAfter(bookChapter.title)
.replace("^[\\n\\s]+".toRegex(), "  ")
} }
private fun getTocRules(): List<TxtTocRule> { private fun getTocRules(): List<TxtTocRule> {
@ -325,5 +336,3 @@ class TextFile(private val book: Book) {
} }
} }
}
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