From c759d7abd1b4181fb4931bc95148beac3051bf91 Mon Sep 17 00:00:00 2001
From: ringabout <43030857+ringabout@users.noreply.github.com>
Date: Wed, 18 Sep 2024 23:35:46 +0800
Subject: [PATCH] fixes rst parsing Markdown CodeblockFields blocking the loop
 (#24128)

```nim
import packages/docutils/[rst, rstgen]

let message = """```llvm-profdata"""

echo rstgen.rstToHtml(message, {roSupportMarkdown}, nil)
```
---
 lib/packages/docutils/rst.nim |  2 +-
 tests/stdlib/trst.nim         | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/lib/packages/docutils/rst.nim b/lib/packages/docutils/rst.nim
index a51ee49a64..706c506893 100644
--- a/lib/packages/docutils/rst.nim
+++ b/lib/packages/docutils/rst.nim
@@ -1526,7 +1526,7 @@ proc parseMarkdownCodeblockFields(p: var RstParser): PRstNode =
     result = nil
   else:
     result = newRstNode(rnFieldList)
-  while currentTok(p).kind != tkIndent:
+  while currentTok(p).kind notin {tkIndent, tkEof}:
     if currentTok(p).kind == tkWhite:
       inc p.idx
     else:
diff --git a/tests/stdlib/trst.nim b/tests/stdlib/trst.nim
index 2a7f0d3a4d..ceab34bc9b 100644
--- a/tests/stdlib/trst.nim
+++ b/tests/stdlib/trst.nim
@@ -16,6 +16,8 @@ discard """
 [Suite] RST escaping
 
 [Suite] RST inline markup
+
+[Suite] Misc isssues
 '''
 matrix: "--mm:refc; --mm:orc"
 """
@@ -1980,3 +1982,13 @@ suite "RST inline markup":
           rnLeaf  ')'
       """)
     check(warnings[] == @["input(1, 5) Warning: broken link 'f'"])
+
+suite "Misc isssues":
+  test "Markdown CodeblockFields in one line (lacking enclosing ```)":
+    let message = """
+    ```llvm-profdata merge first.profraw second.profraw third.profraw <more stuff maybe> -output data.profdata```"""
+
+    try:
+      echo rstgen.rstToHtml(message, {roSupportMarkdown}, nil)
+    except EParseError:
+      discard