fix(md): code info string, and fmt advancement

crates/biome_markdown_formatter/src/markdown/auxiliary/fenced_code_block.rs

@@ -3,6 +3,7 @@ use crate::prelude::*;
 use crate::shared::TextPrintMode;
 use biome_formatter::write;
 use biome_markdown_syntax::{MdFencedCodeBlock, MdFencedCodeBlockFields};
+use biome_rowan::TextSize;
 
 #[derive(Debug, Clone, Default)]
 pub(crate) struct FormatMdFencedCodeBlock;
@@ -18,18 +19,15 @@ impl FormatNodeRule<MdFencedCodeBlock> for FormatMdFencedCodeBlock {
         } = node.as_fields();
 
         let l_fence = l_fence?;
-        let fence_text = l_fence.text();
-        // SAFETY: fence_text has at least one character.
-        let fence_char = fence_text.as_bytes()[0] as char;
 
         // Compute the minimum fence length needed (CommonMark §4.5).
         // The fence must be strictly longer than any same-character sequence
         // in the content, otherwise the inner sequence would be parsed as a
         // closing fence. E.g. if the content contains ``` (3 backticks),
         // the outer fence needs at least 4.
-        let max_inner = longest_fence_char_sequence(node, fence_char);
+        let max_inner = longest_fence_char_sequence(node, '`');
         let fence_len = (max_inner + 1).max(3);
-        let normalized_fence: String = std::iter::repeat_n(fence_char, fence_len).collect();
+        let normalized_fence: String = std::iter::repeat_n('`', fence_len).collect();
 
         write!(
             f,
@@ -60,6 +58,8 @@ impl FormatNodeRule<MdFencedCodeBlock> for FormatMdFencedCodeBlock {
                     &text(&normalized_fence, r_fence.text_trimmed_range().start())
                 )]
             )?;
+        } else {
+            write!(f, [text(&normalized_fence, TextSize::default())])?;
         }
 
         Ok(())

crates/biome_markdown_formatter/src/markdown/auxiliary/hard_line.rs

@@ -14,7 +14,7 @@ impl FormatNodeRule<MdHardLine> for FormatMdHardLine {
 
         if self.print_mode.is_pristine() {
             // We intentionally format this code as is
-            return format_verbatim_node(node.syntax()).fmt(f);
+            return token.format().fmt(f);
         }
 
         let text_content = token.text();

crates/biome_markdown_formatter/src/markdown/auxiliary/header.rs

@@ -1,7 +1,6 @@
 use crate::markdown::auxiliary::paragraph::FormatMdParagraphOptions;
 use crate::prelude::*;
 use crate::shared::{TextPrintMode, TrimMode};
-use crate::verbatim::format_verbatim_node;
 use biome_formatter::write;
 use biome_markdown_syntax::{MdHeader, MdHeaderFields};
 use biome_rowan::AstNode;
@@ -17,9 +16,7 @@ impl FormatNodeRule<MdHeader> for FormatMdHeader {
             after,
         } = node.as_fields();
 
-        write!(f, [format_verbatim_node(indent.syntax())])?;
-
-        write!(f, [before.format()])?;
+        write!(f, [indent.format(), before.format()])?;
 
         if let Some(content) = content {
             write!(

crates/biome_markdown_formatter/src/markdown/auxiliary/indent_token.rs

@@ -1,10 +1,10 @@
 use crate::prelude::*;
 use biome_markdown_syntax::MdIndentToken;
-use biome_rowan::AstNode;
+
 #[derive(Debug, Clone, Default)]
 pub(crate) struct FormatMdIndentToken;
 impl FormatNodeRule<MdIndentToken> for FormatMdIndentToken {
     fn fmt_fields(&self, node: &MdIndentToken, f: &mut MarkdownFormatter) -> FormatResult<()> {
-        format_verbatim_node(node.syntax()).fmt(f)
+        node.md_indent_char_token().format().fmt(f)
     }
 }

crates/biome_markdown_formatter/src/markdown/lists/code_name_list.rs

@@ -1,10 +1,23 @@
+use crate::markdown::auxiliary::textual::FormatMdTextualOptions;
 use crate::prelude::*;
+use crate::shared::{TextPrintMode, TrimMode};
 use biome_markdown_syntax::MdCodeNameList;
+
 #[derive(Debug, Clone, Default)]
 pub(crate) struct FormatMdCodeNameList;
 impl FormatRule<MdCodeNameList> for FormatMdCodeNameList {
     type Context = MarkdownFormatContext;
     fn fmt(&self, node: &MdCodeNameList, f: &mut MarkdownFormatter) -> FormatResult<()> {
-        format_verbatim_node(node.syntax()).fmt(f)
+        let mut joiner = f.join();
+
+        for entry in node.iter() {
+            joiner.entry(&entry.format().with_options(FormatMdTextualOptions {
+                print_mode: TextPrintMode::Trim(TrimMode::All),
+                should_remove: false,
+                trim_start: true,
+            }));
+        }
+
+        joiner.finish()
     }
 }

crates/biome_markdown_formatter/tests/quick_test.rs

@@ -4,7 +4,11 @@ use biome_markdown_parser::parse_markdown;
 #[ignore]
 #[test]
 fn quick_test() {
-    let source = "[*foo* bar][]
+    let source = "~~~~
+aaa
+~~~
+~~~~
+
 ";
     let parse = parse_markdown(source);
 

crates/biome_markdown_formatter/tests/specs/markdown/fenced_code_block_info_string.md

@@ -1,11 +1,19 @@
-```js    
+```js
 console.log("hello");
 ```
 
-```    
+```
 some code
 ```
 
 ```rust
     fn main() {}
 ```
+
+```rust,ignore
+    fn main() {}
+```
+
+```rust,  ignore   expect_diagnostics
+    fn main() {}
+```

crates/biome_markdown_formatter/tests/specs/markdown/fenced_code_block_info_string.md.snap

@@ -6,18 +6,26 @@ info: markdown/fenced_code_block_info_string.md
 # Input
 
 ```md
-```js    
+```js
 console.log("hello");
 ```
 
-```    
+```
 some code
 ```
 
 ```rust
     fn main() {}
 ```
 
+```rust,ignore
+    fn main() {}
+```
+
+```rust,  ignore   expect_diagnostics
+    fn main() {}
+```
+
 ```
 
 
@@ -36,4 +44,12 @@ some code
     fn main() {}
 ```
 
+```rust,ignore
+    fn main() {}
+```
+
+```rust,  ignore   expect_diagnostics
+    fn main() {}
+```
+
 ```

crates/biome_markdown_formatter/tests/specs/prettier/markdown/multiparser-js/meta-in-code-block.md.snap

@@ -38,6 +38,14 @@ console.log    (    "hello world"    );
 ```diff
 --- Prettier
 +++ Biome
+@@ -1,6 +1,6 @@
+ ## plain js block
+
+-```js
++```js    
+ console.log    (    "hello world"    );
+ ```
+
 @@ -18,6 +18,6 @@
 
  ## js block with meta and extra spaces (only the first set of spaces should be changed)
@@ -53,7 +61,7 @@ console.log    (    "hello world"    );
 ```md
 ## plain js block
 
-```js
+```js    
 console.log    (    "hello world"    );
 ```
 

crates/biome_markdown_formatter/tests/specs/prettier/markdown/spec/example-108.md.snap

@@ -24,21 +24,19 @@ bar
 @@ -1,7 +1,5 @@
  ## foo
 -
--```
-+~~~
+ ```
  bar
--```
+ ```
 -
-+~~~
  # baz
 ```
 
 # Output
 
 ```md
 ## foo
-~~~
+```
 bar
-~~~
+```
 # baz
 ```