Add from_array and improve array viewing

Cargo.lock

@@ -1979,7 +1979,7 @@ dependencies = [
  "regex 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.9.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "roxmltree 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustyline 5.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustyline 5.0.1 (git+https://github.com/kkawakam/rustyline.git)",
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.98 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde-hjson 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2790,7 +2790,7 @@ dependencies = [
 [[package]]
 name = "rustyline"
 version = "5.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+source = "git+https://github.com/kkawakam/rustyline.git#568c9d0512b065e9eef68a6e46407881d2376738"
 dependencies = [
  "dirs 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.60 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4036,7 +4036,7 @@ dependencies = [
 "checksum rustc-demangle 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)" = "a7f4dccf6f4891ebcc0c39f9b6eb1a83b9bf5d747cb439ec6fba4f3b977038af"
 "checksum rustc-hash 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7540fc8b0c49f096ee9c961cda096467dce8084bec6bdca2fc83895fd9b28cb8"
 "checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
-"checksum rustyline 5.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b7d4ca3c9586d2c1f742284f032e328313ea55f3f60a3b0a17e2ca1a2bf9ae22"
+"checksum rustyline 5.0.1 (git+https://github.com/kkawakam/rustyline.git)" = "<none>"
 "checksum ryu 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c92464b447c0ee8c4fb3824ecc8383b81717b9f1e74ba2e72540aef7b9f82997"
 "checksum safemem 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e133ccc4f4d1cd4f89cc8a7ff618287d56dc7f638b8e38fc32c5fdcadc339dd5"
 "checksum same-file 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "585e8ddcedc187886a30fa705c47985c3fa88d06624095856b36ca0b82ff4421"

README.md

@@ -157,6 +157,7 @@ Nu adheres closely to a set of goals that make up its design philosophy. As feat
 | first amount | Show only the first number of rows |
 | str (field) | Apply string function. Optional use the field of a table |
 | tags | Read the tags (metadata) for values |
+| from-array | Expand an array/list into rows |
 | to-array | Collapse rows into a single list |
 | to-json | Convert table into .json text |
 | to-toml | Convert table into .toml text |

src/cli.rs

@@ -147,6 +147,7 @@ pub async fn cli() -> Result<(), Box<dyn Error>> {
         context.add_commands(vec![
             command("first", Box::new(first::first)),
             command("pick", Box::new(pick::pick)),
+            command("from-array", Box::new(from_array::from_array)),
             command("from-ini", Box::new(from_ini::from_ini)),
             command("from-csv", Box::new(from_csv::from_csv)),
             command("from-json", Box::new(from_json::from_json)),
@@ -160,6 +161,7 @@ pub async fn cli() -> Result<(), Box<dyn Error>> {
             command("enter", Box::new(enter::enter)),
             command("n", Box::new(next::next)),
             command("p", Box::new(prev::prev)),
+            command("debug", Box::new(debug::debug)),
             command("lines", Box::new(lines::lines)),
             command("pick", Box::new(pick::pick)),
             command("shells", Box::new(shells::shells)),

src/commands.rs

@@ -10,9 +10,11 @@ crate mod command;
 crate mod config;
 crate mod cp;
 crate mod date;
+crate mod debug;
 crate mod enter;
 crate mod exit;
 crate mod first;
+crate mod from_array;
 crate mod from_csv;
 crate mod from_ini;
 crate mod from_json;

src/commands/debug.rs

@@ -0,0 +1,14 @@
+use crate::errors::ShellError;
+use crate::prelude::*;
+
+pub fn debug(args: CommandArgs, _registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
+    let input = args.input;
+
+    Ok(input
+        .values
+        .map(|v| {
+            println!("{:?}", v);
+            ReturnSuccess::value(v)
+        })
+        .to_output_stream())
+}

src/commands/from_array.rs

@@ -0,0 +1,21 @@
+use crate::object::Value;
+use crate::prelude::*;
+
+pub fn from_array(
+    args: CommandArgs,
+    _registry: &CommandRegistry,
+) -> Result<OutputStream, ShellError> {
+    let stream = args
+        .input
+        .values
+        .map(|item| match item {
+            Tagged {
+                item: Value::List(vec),
+                ..
+            } => VecDeque::from(vec),
+            x => VecDeque::from(vec![x]),
+        })
+        .flatten();
+
+    Ok(stream.to_output_stream())
+}

src/format/table.rs

@@ -40,11 +40,17 @@ impl TableView {
         let mut entries = vec![];
 
         for (idx, value) in values.iter().enumerate() {
-            let mut row: Vec<String> = headers
-                .iter()
-                .enumerate()
-                .map(|(i, d)| value.get_data(d).borrow().format_leaf(Some(&headers[i])))
-                .collect();
+            let mut row: Vec<String> = match value {
+                Tagged {
+                    item: Value::Object(..),
+                    ..
+                } => headers
+                    .iter()
+                    .enumerate()
+                    .map(|(i, d)| value.get_data(d).borrow().format_leaf(Some(&headers[i])))
+                    .collect(),
+                x => vec![x.format_leaf(None)],
+            };
 
             if values.len() > 1 {
                 row.insert(0, format!("{}", Color::Black.bold().paint(idx.to_string())));