行頭以外にヘッダー等があった場合にヘッダーとして認識されてしまう問題を修正
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985df8ed82
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GPG Key ID:
95CBCF7046307B77
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@ -7,91 +7,36 @@ class Lexer {
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val tokens = mutableListOf<Token>()
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val lines = PeekableStringIterator(input.lines())
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var inQuote = false
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var inCode = false
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var inQuote = false //引用中の判断
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var inCode = false //コードブロック内の判断
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var inline = false //行頭の判断
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val codeBuffer = StringBuilder()
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line@ while (lines.hasNext()) {
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inline = false //改行時にリセット
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if (lines.peekOrNull() == "") {
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blankLine(lines, tokens)
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} else {
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val line = lines.next()
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val iterator = PeekableCharIterator(line.toCharArray())
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char@ while (iterator.hasNext()) {
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val next = iterator.next()
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when {
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next == '`' || next == '｀' -> {
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//todo ````` のようなやつが来たときのことを考える
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if (iterator.peekOrNull() == next) {
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val codeBlockBuilder = StringBuilder()
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codeBlockBuilder.append(next)
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codeBlockBuilder.append(iterator.next())
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if (iterator.peekOrNull() == next) {
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codeBlockBuilder.append(iterator.next())
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if (iterator.peekOrNull() == next) {
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tokens.add(Text(codeBlockBuilder.toString()))
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} else {
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if (inCode) {
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inCode = false
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tokens.add(CodeBlock(codeBuffer.toString().trimStart('\n').trimEnd('\n')))
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codeBuffer.clear()
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} else {
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inCode = true
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var inFilename = false
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val language = StringBuilder()
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val filename = StringBuilder()
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if (iterator.hasNext()) {
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codeBlock@ while (iterator.hasNext()) {
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val nextLanguage = iterator.next()
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if ((nextLanguage == ':' || nextLanguage == '：') && !inFilename) {
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inFilename = true
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continue@codeBlock
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}
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if (inFilename) {
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filename.append(nextLanguage)
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} else {
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language.append(nextLanguage)
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}
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}
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tokens.add(CodeBlockLanguage(language.toString(), filename.toString()))
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}
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}
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}
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} else if (iterator.peekOrNull() == null) {
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tokens.add(Text(codeBlockBuilder.toString()))
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}
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} else {
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val codeBuilder = StringBuilder()
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while (iterator.hasNext() && iterator.peekOrNull() != next) {
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codeBuilder.append(iterator.next())
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}
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if (iterator.hasNext() && iterator.next() == next) { //インラインコードブロックかと思ったら違った
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tokens.add(InlineCodeBlock(codeBuilder.toString()))
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} else {
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tokens.add(Text(codeBuilder.insert(0, next).toString()))
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}
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}
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inCode = codeblock(iterator, next, tokens, inCode, codeBuffer, inline)
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}
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inCode -> {
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codeBuffer.append(next)
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}
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next == '#' || next == '＃' -> header(iterator, tokens)
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(next == '>' || next == '＞') && !inQuote -> {
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(next == '#' || next == '＃') && !inline -> header(iterator, tokens)
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(next == '>' || next == '＞') && !inQuote && !inline -> {
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inQuote = true
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quote(iterator, tokens)
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}
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next == '-' || next == '=' || next == 'ー' || next == '＝' -> {
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(next == '-' || next == '=' || next == 'ー' || next == '＝') && !inline -> {
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if (iterator.peekOrNull()?.isWhitespace() == true) { //-の直後がスペースならリストの可能性
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list(iterator, tokens)
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} else {//それ以外ならセパレーターの可能性
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@ -99,7 +44,7 @@ class Lexer {
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}
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}
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next in '0'..'9' || next in '０'..'９' ->
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(next in '0'..'9' || next in '０'..'９') && !inline ->
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decimalList(iterator, tokens, next)
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next == '[' || next == '「' -> tokens.add(SquareBracketStart)
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@ -133,6 +78,9 @@ class Lexer {
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}
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}
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}
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if (!inline && tokens.lastOrNull() !is Whitespace) { //行頭が空白の場合は一旦無視する
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inline = true
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}
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}
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@ -157,6 +105,76 @@ class Lexer {
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return tokens
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}
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private fun codeblock(
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iterator: PeekableCharIterator,
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next: Char,
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tokens: MutableList<Token>,
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inCode: Boolean,
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codeBuffer: StringBuilder,
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inline: Boolean
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): Boolean {
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var inCode1 = inCode
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if (iterator.peekOrNull() == next && !inline) { //行頭かつ次の文字が`
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val codeBlockBuilder = StringBuilder()
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codeBlockBuilder.append(next)
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codeBlockBuilder.append(iterator.next())
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if (iterator.peekOrNull() == next) {
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codeBlockBuilder.append(iterator.next())
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if (iterator.peekOrNull() == next) {
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tokens.add(Text(codeBlockBuilder.toString()))
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} else {
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if (inCode1) {
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inCode1 = false
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tokens.add(CodeBlock(codeBuffer.toString().trimStart('\n').trimEnd('\n')))
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codeBuffer.clear()
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} else {
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inCode1 = true
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var inFilename = false
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val language = StringBuilder()
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val filename = StringBuilder()
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if (iterator.hasNext()) {
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codeBlock@ while (iterator.hasNext()) {
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val nextLanguage = iterator.next()
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if ((nextLanguage == ':' || nextLanguage == '：') && !inFilename) {
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inFilename = true
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continue@codeBlock
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}
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if (inFilename) {
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filename.append(nextLanguage)
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} else {
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language.append(nextLanguage)
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}
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}
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tokens.add(CodeBlockLanguage(language.toString(), filename.toString()))
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}
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}
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}
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} else if (iterator.peekOrNull() == null) {
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tokens.add(Text(codeBlockBuilder.toString()))
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}
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} else {
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val codeBuilder = StringBuilder()
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while (iterator.hasNext() && iterator.peekOrNull() != next) {
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codeBuilder.append(iterator.next())
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}
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if (iterator.hasNext() && iterator.next() == next) { //インラインコードブロックかと思ったら違った
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if (codeBuilder.isEmpty()) {
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tokens.add(Text("$next$next"))
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} else {
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tokens.add(InlineCodeBlock(codeBuilder.toString()))
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}
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} else {
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tokens.add(Text(codeBuilder.insert(0, next).toString()))
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}
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}
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return inCode1
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}
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private fun asterisk(
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iterator: PeekableCharIterator,
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next: Char,
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@ -28,4 +28,5 @@ data object Exclamation : Token()
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data class UrlTitle(val title: String) : Token()
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data class InlineCodeBlock(val text: String) : Token()
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data class CodeBlock(val text: String) : Token()
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data class CodeBlockLanguage(val language: String, val filename: String) : Token()
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data class CodeBlockLanguage(val language: String, val filename: String) : Token()
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data object Tilde : Token()
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@ -760,4 +760,49 @@ class LexerTest {
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), actual
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)
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}
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@Test
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fun 唐突のヘッダー() {
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val lexer = Lexer()
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val actual = lexer.lex("aiueo #a")
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println(actual)
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assertContentEquals(
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listOf(
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Text("aiueo"), Whitespace(1, ' '), Text("#a")
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), actual
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)
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}
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@Test
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fun 唐突のリスト() {
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val lexer = Lexer()
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val actual = lexer.lex("aiueo - a")
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println(actual)
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assertContentEquals(
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listOf(
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Text("aiueo"), Whitespace(1, ' '), Text("-"), Whitespace(1, ' '), Text("a")
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), actual
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)
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}
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@Test
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fun 唐突のコードブロック() {
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val lexer = Lexer()
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val actual = lexer.lex("aiueo ```abcd")
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println(actual)
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assertContentEquals(
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listOf(
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Text("aiueo"), Whitespace(1, ' '), Text("```abcd")
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), actual
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)
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}
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}
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