[#954] Display multi-line description and multi-line code-blocks with multiple lines (only fzf supported)

src/commands/preview/mod.rs

@@ -14,7 +14,7 @@ pub struct Input {
 }
 
 fn extract_elements(argstr: &str) -> Result<(&str, &str, &str)> {
-    let mut parts = argstr.split(deser::terminal::DELIMITER).skip(3);
+    let mut parts = argstr.split(deser::terminal::DELIMITER).skip(1);
     let tags = parts.next().context("No `tags` element provided.")?;
     let comment = parts.next().context("No `comment` element provided.")?;
     let snippet = parts.next().context("No `snippet` element provided.")?;

src/deser/mod.rs

@@ -19,7 +19,7 @@ pub fn with_new_lines(txt: String) -> String {
 pub fn fix_newlines(txt: &str) -> String {
     if txt.contains(NEWLINE_ESCAPE_CHAR) {
         (*NEWLINE_REGEX)
-            .replace_all(txt.replace(LINE_SEPARATOR, "  ").as_str(), "")
+            .replace_all(txt.replace(LINE_SEPARATOR, "\n").as_str(), "")
             .to_string()
     } else {
         txt.to_string()

src/deser/terminal.rs

@@ -33,11 +33,28 @@ lazy_static! {
 
 pub fn write(item: &Item) -> String {
     let (tag_width_percentage, comment_width_percentage, snippet_width_percentage) = *COLUMN_WIDTHS;
+
+    let separator_count = max(
+        item.snippet.matches(LINE_SEPARATOR).count(),
+        item.comment.matches(LINE_SEPARATOR).count(),
+    );
+
+    let splitted_comment = item.comment.split(LINE_SEPARATOR).collect::<Vec<&str>>();
+    let splitted_snippet = item.snippet.split(LINE_SEPARATOR).collect::<Vec<&str>>();
+
+    let printer_item = (0..=separator_count)
+        .map(|i| {format!("{tags_short}{delimiter}{comment_line_i}{delimiter}{snippet_line_i}",
+            tags_short     = style(limit_str(if i == 0 { &item.tags } else { "" },   tag_width_percentage)).with(CONFIG.tag_color()),
+            comment_line_i = style(limit_str(splitted_comment.get(i).unwrap_or(&""), comment_width_percentage)).with(CONFIG.comment_color()),
+            snippet_line_i = style(limit_str(splitted_snippet.get(i).unwrap_or(&""), snippet_width_percentage)).with(CONFIG.snippet_color()),
+            delimiter = " ",
+        )})
+        .collect::<Vec<String>>()
+        .join("\n");
+
     format!(
-            "{tags_short}{delimiter}{comment_short}{delimiter}{snippet_short}{delimiter}{tags}{delimiter}{comment}{delimiter}{snippet}{delimiter}{file_index}{delimiter}\n",
-            tags_short = style(limit_str(&item.tags, tag_width_percentage)).with(CONFIG.tag_color()),
-            comment_short = style(limit_str(&fix_newlines(&item.comment), comment_width_percentage)).with(CONFIG.comment_color()),
-            snippet_short = style(limit_str(&fix_newlines(&item.snippet), snippet_width_percentage)).with(CONFIG.snippet_color()),
+            "{printer_item}{delimiter}{tags}{delimiter}{comment}{delimiter}{snippet}{delimiter}{file_index}{delimiter}\0",
+            printer_item = printer_item,
             tags = item.tags,
             comment = item.comment,
             delimiter = DELIMITER,
@@ -47,7 +64,7 @@ pub fn write(item: &Item) -> String {
 }
 
 pub fn read(raw_snippet: &str, is_single: bool) -> Result<(&str, Item)> {
-    let mut lines = raw_snippet.split('\n');
+    let mut lines = raw_snippet.split('\0');
     let key = if is_single {
         "enter"
     } else {
@@ -60,7 +77,7 @@ pub fn read(raw_snippet: &str, is_single: bool) -> Result<(&str, Item)> {
         .next()
         .context("No more parts in `selections`")?
         .split(DELIMITER)
-        .skip(3);
+        .skip(1);
 
     let tags = parts.next().unwrap_or("").into();
     let comment = parts.next().unwrap_or("").into();

src/finder/mod.rs

@@ -116,10 +116,12 @@ impl FinderChoice {
             "--bind",
             format!("ctrl-j:down,ctrl-k:up{bindings}").as_str(),
             "--exact",
+            "--read0",
+            "--print0",
         ]);
 
         if !opts.show_all_columns {
-            command.args(["--with-nth", "1,2,3"]);
+            command.args(["--with-nth", "1"]);
         }
 
         if !opts.prevent_select1 {

src/parser.rs

@@ -225,9 +225,13 @@ impl<'a> Parser<'a> {
 
         let write_fn = self.write_fn;
 
-        self.writer
-            .write_all(write_fn(item).as_bytes())
-            .context("Failed to write command to finder's stdin")
+        let string = write_fn(item);
+        //eprintln!("string as written by write_fn:\n{}", string);
+
+        return self
+            .writer
+            .write_all(string.as_bytes())
+            .context("Failed to write command to finder's stdin");
     }
 
     pub fn read_lines(
@@ -257,9 +261,9 @@ impl<'a> Parser<'a> {
 
             // blank
             if line.is_empty() {
-                if !item.snippet.is_empty() {
-                    item.snippet.push_str(deser::LINE_SEPARATOR);
-                }
+                // if !item.snippet.is_empty() {
+                //     item.snippet.push_str(deser::LINE_SEPARATOR);
+                // }
             }
             // tag
             else if line.starts_with('%') {