Add block quotes

4 files changed, 93 insertions, 0 deletions

diff --git a/src/main/kotlin/moe/nea/blog/md/BlockQuote.kt b/src/main/kotlin/moe/nea/blog/md/BlockQuote.kt
new file mode 100644
index 0000000..ba3824f
--- /dev/null
+++ b/src/main/kotlin/moe/nea/blog/md/BlockQuote.kt
@@ -0,0 +1,14 @@
+package moe.nea.blog.md
+
+import moe.nea.blog.util.indent
+import java.io.PrintStream
+
+class BlockQuote(val inner: MarkdownBlock) : MarkdownBlock {
+    override fun debugFormat(indent: Int, printStream: PrintStream) {
+        printStream.indent(indent)
+        printStream.println("<quote>")
+        inner.debugFormat(indent + 2, printStream)
+        printStream.indent(indent)
+        printStream.println("</quote>")
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/moe/nea/blog/md/BlockQuoteParser.kt b/src/main/kotlin/moe/nea/blog/md/BlockQuoteParser.kt
new file mode 100644
index 0000000..c37e215
--- /dev/null
+++ b/src/main/kotlin/moe/nea/blog/md/BlockQuoteParser.kt
@@ -0,0 +1,33 @@
+package moe.nea.blog.md
+
+object BlockQuoteParser : BlockParser {
+    override fun detect(line: String): Boolean {
+        return line.startsWith("> ")
+    }
+
+    override fun parse(parser: MarkdownParser): MarkdownBlock {
+        parser.pushPreProcessor(
+            LinePreProcessor.whileIgnoringFirst(
+                parser.getIndent()
+            ) { _, line ->
+                if (!line.startsWith("> ") && line != ">") {
+                    null
+                } else {
+                    "  " + line.substring(2)
+                }
+            }
+        )
+        parser.pushIndent(2)
+        val blocks = mutableListOf<MarkdownBlock>()
+        while (true) {
+            val child = parser.readChildBlock() ?: break
+            blocks.add(child)
+        }
+        parser.popPreProcessor()
+        parser.popIndent()
+        return BlockQuote(parser.mergeBlocks(blocks))
+    }
+
+    override val prio: Int
+        get() = 10
+}
\ No newline at end of file
diff --git a/src/main/kotlin/moe/nea/blog/md/MarkdownParser.kt b/src/main/kotlin/moe/nea/blog/md/MarkdownParser.kt
index 5ee984f..11aff14 100644
--- a/src/main/kotlin/moe/nea/blog/md/MarkdownParser.kt
+++ b/src/main/kotlin/moe/nea/blog/md/MarkdownParser.kt
@@ -170,6 +170,7 @@ class MarkdownParser(source: String) {
         blockParsers.add(CodeBlockParser)
         blockParsers.add(HeaderParser)
         blockParsers.add(ListParser)
+        blockParsers.add(BlockQuoteParser)
         inlineParsers.add(ItalicsParser)
         inlineParsers.add(LinkParser)
         inlineParsers.add(ImageParser)
diff --git a/src/test/kotlin/moe/nea/blog/md/test/BlockQuoteTest.kt b/src/test/kotlin/moe/nea/blog/md/test/BlockQuoteTest.kt
new file mode 100644
index 0000000..635dd88
--- /dev/null
+++ b/src/test/kotlin/moe/nea/blog/md/test/BlockQuoteTest.kt
@@ -0,0 +1,45 @@
+package moe.nea.blog.md.test
+
+import kotlin.test.Test
+
+class BlockQuoteTest : MarkdownTest() {
+    @Test
+    fun testNestedBlockQuote() {
+        assertDocumentFormat(
+            """
+            <quote>
+              hi
+              <quote>
+                hello
+              </quote>
+            </quote>
+            """.trimIndent(),
+            """
+            > hi    
+            > > hello
+            """.trimIndent()
+        )
+    }
+
+    @Test
+    fun testCodeInBlock() {
+        assertDocumentFormat(
+            """
+            <quote>
+              hi
+              <code language=kotlin>
+              fun helloWorld(): Unit =
+                  "Hello, World!".let(::println)
+              </code>
+            </quote>
+            """.trimIndent(),
+            """
+            > hi    
+            > ```kotlin
+            > fun helloWorld(): Unit =
+            >     "Hello, World!".let(::println)
+            > ```
+            """.trimIndent()
+        )
+    }
+}
\ No newline at end of file