From 19d63b095945a2552718d7631b507f3e005ebdd4 Mon Sep 17 00:00:00 2001
From: Ika <ikatyang@gmail.com>
Date: Sat, 9 Jan 2021 18:29:23 +0800
Subject: [PATCH] fix: no "assertion failed" caused by right parenthesis in
 link definition

---
 corpus/issues.txt                          | 17 +++++++++++++++++
 src/tree_sitter_markdown/inline_context.cc |  3 +++
 src/tree_sitter_markdown/inline_context.h  |  2 ++
 src/tree_sitter_markdown/inline_scan.cc    |  2 +-
 4 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/corpus/issues.txt b/corpus/issues.txt
index e27ab5a..d5a2576 100644
--- a/corpus/issues.txt
+++ b/corpus/issues.txt
@@ -100,3 +100,20 @@ ss_*.
 (document
   (paragraph
     (text)))
+
+================================================================================
+#14 - Assertion failed caused by right parenthesis in link definition
+================================================================================
+[x]: x
+)
+
+--------------------------------------------------------------------------------
+
+(document
+  (link_reference_definition
+    (link_label
+      (text))
+    (link_destination
+      (text)))
+  (paragraph
+    (text)))
diff --git a/src/tree_sitter_markdown/inline_context.cc b/src/tree_sitter_markdown/inline_context.cc
index 94bcb27..1628e64 100644
--- a/src/tree_sitter_markdown/inline_context.cc
+++ b/src/tree_sitter_markdown/inline_context.cc
@@ -8,6 +8,7 @@ bool InlineContext::is_vld_pst() const { return pst_ != PST_INVALID; }
 bool InlineContext::has_asr() const { return has_asr_; }
 bool InlineContext::has_usc() const { return has_usc_; }
 bool InlineContext::has_del() const { return has_del_; }
+bool InlineContext::has_cln() const { return has_cln_; }
 LexedLength InlineContext::btk_len() const { return btk_len_; }
 
 InlineContext::InlineContext(const InlineDelimiterList::Iterator dlm_itr) {
@@ -15,6 +16,7 @@ InlineContext::InlineContext(const InlineDelimiterList::Iterator dlm_itr) {
   has_asr_ = dlm_itr->sym() == SYM_ASR_BGN;
   has_usc_ = dlm_itr->sym() == SYM_USC_BGN;
   has_del_ = dlm_itr->sym() == SYM_DEL_BGN;
+  has_cln_ = dlm_itr->sym() == SYM_LNK_REF_DEF_CLN;
   btk_len_ = dlm_itr->sym() == SYM_COD_SPN_BGN ? dlm_itr->len() : 0;
   upd_pst();
 }
@@ -23,6 +25,7 @@ InlineContext::InlineContext(const InlineDelimiterList::Iterator dlm_itr, const
   has_asr_ = prt_ctx.has_asr_ || dlm_itr->sym() == SYM_ASR_BGN;
   has_usc_ = prt_ctx.has_usc_ || dlm_itr->sym() == SYM_USC_BGN;
   has_del_ = prt_ctx.has_del_ || dlm_itr->sym() == SYM_DEL_BGN;
+  has_cln_ = prt_ctx.has_cln_ || dlm_itr->sym() == SYM_LNK_REF_DEF_CLN;
   btk_len_ = prt_ctx.btk_len_ || (dlm_itr->sym() == SYM_COD_SPN_BGN ? dlm_itr->len() : 0);
   upd_pst();
 }
diff --git a/src/tree_sitter_markdown/inline_context.h b/src/tree_sitter_markdown/inline_context.h
index 3dd3912..643a3ca 100644
--- a/src/tree_sitter_markdown/inline_context.h
+++ b/src/tree_sitter_markdown/inline_context.h
@@ -14,6 +14,7 @@ struct InlineContext {
   bool has_asr_;
   bool has_usc_;
   bool has_del_;
+  bool has_cln_;
   LexedLength btk_len_;
 public:
   InlineDelimiterList::Iterator dlm_itr() const;
@@ -22,6 +23,7 @@ struct InlineContext {
   bool has_asr() const;
   bool has_usc() const;
   bool has_del() const;
+  bool has_cln() const;
   LexedLength btk_len() const;
 
   InlineContext(const InlineDelimiterList::Iterator delimiter_iterator);
diff --git a/src/tree_sitter_markdown/inline_scan.cc b/src/tree_sitter_markdown/inline_scan.cc
index 0eac075..e0442eb 100644
--- a/src/tree_sitter_markdown/inline_scan.cc
+++ b/src/tree_sitter_markdown/inline_scan.cc
@@ -1073,7 +1073,7 @@ bool scn_inl_rng(Lexer &lxr, InlineDelimiterList &inl_dlms, InlineContextStack &
 
 bool scn_inl_rpr(Lexer &lxr, InlineDelimiterList &inl_dlms, InlineContextStack &inl_ctx_stk, BlockDelimiterList &blk_dlms, BlockContextStack &blk_ctx_stk, const InlineDelimiterList::Iterator &nxt_inl_dlm_itr) {
   if (lxr.lka_chr() != ')') return false;
-  if (VLD(SYM_LNK_INL_END)) {
+  if (VLD(SYM_LNK_INL_END) && !inl_ctx_stk.back().has_cln()) {
     if (
       inl_ctx_stk.back().dlm_itr()->sym() == SYM_LNK_DST_END_MKR
       || inl_ctx_stk.back().dlm_itr()->sym() == SYM_LNK_TIT_END_MKR