From 9dd4642bc4c9111d1d58f506f5065125c9e858ed Mon Sep 17 00:00:00 2001
From: Alex Karle <alex@alexkarle.com>
Date: Mon, 27 Dec 2021 12:29:31 -0500
Subject: [PATCH] Add support for multi-paragraph blockquotes

This was harder than expected--it changes the paradigm of the blockquote
being a typical "Block" type, since we need to contain other block types
inside it (like paragraphs); instead, it's a new global state boolean,
and we use that to determine when to start and end the blockquote.
---
 nihdoc.c      | 26 ++++++++++++++++++++------
 test/big.html | 13 ++++++++++++-
 test/big.txt  |  4 ++++
 3 files changed, 36 insertions(+), 7 deletions(-)

diff --git a/nihdoc.c b/nihdoc.c
index c1ace00..8ac5b3d 100644
--- a/nihdoc.c
+++ b/nihdoc.c
@@ -22,7 +22,6 @@ enum Block {
     HEADER_PARSE,
     PARAGRAPH,
     CODE,
-    QUOTE,
     LIST,
     LIST_PARSE,
 };
@@ -49,6 +48,7 @@ int listdepth = 0;
 int lastc = '0';
 bool ol = false;
 bool linestarted = false;
+bool blockquote = false;
 
 
 /* Helper functions */
@@ -100,11 +100,10 @@ void handle_lf() {
     }
 
     /* multi-line types (two lf to close) */
-    if (lastc == '\n') {
+    if (lastc == '\n' || (lastc == '>' && blockquote)) {
         switch (in) {
             case PARAGRAPH: printf("</p>\n"); break;
             case CODE:      printf("</code></pre>\n"); break;
-            case QUOTE:     printf("</blockquote>\n"); break;
             case LIST:
                 previndent = 0;
                 while (endlist())
@@ -114,6 +113,10 @@ void handle_lf() {
                 break; /* no op */
         }
         in = NONE;
+        if (blockquote && lastc == '\n') {
+            printf("</blockquote>\n");
+            blockquote = false;
+        }
     }
 }
 
@@ -205,11 +208,22 @@ int parse() {
                 toggle_format();
                 break;
             case '\t':
+                if (in == NONE) {
+                    in = CODE;
+                    printf("<pre><code>");
+                } else if (lastc == '\n' && c == '\t') {
+                    /* no op */
+                } else {
+                    putesc(c);
+                }
+                break;
             case '>':
                 if (in == NONE) {
-                    in = c == '>' ? QUOTE : CODE;
-                    printf("%s", c == '>' ? "<blockquote>" : "<pre><code>");
-                } else if (lastc == '\n' && c == (in == CODE ? '\t' : '>')) {
+                    in = PARAGRAPH;
+                    /* only start a new blockquote block is not already in one */
+                    printf("%s", blockquote ? "<p>\n" : "<blockquote>\n<p>\n");
+                    blockquote = true;
+                } else if (lastc == '\n' && c == '>') {
                     /* no op */
                 } else {
                     putesc(c);
diff --git a/test/big.html b/test/big.html
index 29e7f14..b16f617 100644
--- a/test/big.html
+++ b/test/big.html
@@ -54,8 +54,11 @@ This is a <em>paragraph</em> <strong>dangit</strong> with
 links to <a href="https://alexkarle.com">https://alexkarle.com</a> and
 my <a href="gopher://alexkarle.com">gopherhole</a>.
 </p>
-<blockquote> this is a block quote
+<blockquote>
+<p>
+ this is a block quote
  that wraps!
+</p>
 </blockquote>
 <pre><code>$ this is a code block
 $ *bold* and _italics_ and `code` have no effect!
@@ -80,3 +83,11 @@ with a newline!</a>
 this is another link
 with a newline!</a>
 </p>
+<blockquote>
+<p>
+ This is a block quote
+</p>
+<p>
+ With two paragraphs!
+</p>
+</blockquote>
diff --git a/test/big.txt b/test/big.txt
index 6693f77..f1f5cc9 100644
--- a/test/big.txt
+++ b/test/big.txt
@@ -49,3 +49,7 @@ with a newline!]
 [https://example.com
 this is another link
 with a newline!]
+
+> This is a block quote
+>
+> With two paragraphs!
--
libgit2 1.1.1