Category option for signature (#343)

* category option for signature

* category option for signature

* column description for $scope

crates/nu-command/src/math/abs.rs

@@ -1,6 +1,6 @@
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{Example, PipelineData, ShellError, Signature, Span, Value};
+use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, Span, Value};
 
 #[derive(Clone)]
 pub struct SubCommand;
@@ -11,7 +11,7 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math abs")
+        Signature::build("math abs").category(Category::Math)
     }
 
     fn usage(&self) -> &str {

crates/nu-command/src/math/avg.rs

@@ -2,7 +2,7 @@ use crate::math::reducers::{reducer_for, Reduce};
 use crate::math::utils::run_with_function;
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{Example, PipelineData, ShellError, Signature, Span, Value};
+use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, Span, Value};
 
 #[derive(Clone)]
 pub struct SubCommand;
@@ -13,7 +13,7 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math avg")
+        Signature::build("math avg").category(Category::Math)
     }
 
     fn usage(&self) -> &str {

crates/nu-command/src/math/ceil.rs

@@ -1,6 +1,6 @@
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{Example, PipelineData, ShellError, Signature, Span, Value};
+use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, Span, Value};
 
 #[derive(Clone)]
 pub struct SubCommand;
@@ -11,7 +11,7 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math ceil")
+        Signature::build("math ceil").category(Category::Math)
     }
 
     fn usage(&self) -> &str {

crates/nu-command/src/math/command.rs

@@ -2,7 +2,7 @@ use nu_engine::get_full_help;
 use nu_protocol::{
     ast::Call,
     engine::{Command, EngineState, Stack},
-    IntoPipelineData, PipelineData, Signature, Value,
+    Category, IntoPipelineData, PipelineData, Signature, Value,
 };
 
 #[derive(Clone)]
@@ -14,7 +14,7 @@ impl Command for MathCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math")
+        Signature::build("math").category(Category::Math)
     }
 
     fn usage(&self) -> &str {

crates/nu-command/src/math/eval.rs

@@ -2,7 +2,7 @@ use nu_engine::CallExt;
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
 use nu_protocol::{
-    Example, PipelineData, ShellError, Signature, Span, Spanned, SyntaxShape, Value,
+    Category, Example, PipelineData, ShellError, Signature, Span, Spanned, SyntaxShape, Value,
 };
 
 #[derive(Clone)]
@@ -18,11 +18,13 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math eval").optional(
-            "math expression",
-            SyntaxShape::String,
-            "the math expression to evaluate",
-        )
+        Signature::build("math eval")
+            .optional(
+                "math expression",
+                SyntaxShape::String,
+                "the math expression to evaluate",
+            )
+            .category(Category::Math)
     }
 
     fn run(

crates/nu-command/src/math/floor.rs

@@ -1,6 +1,6 @@
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{Example, PipelineData, ShellError, Signature, Span, Value};
+use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, Span, Value};
 
 #[derive(Clone)]
 pub struct SubCommand;
@@ -11,7 +11,7 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math floor")
+        Signature::build("math floor").category(Category::Math)
     }
 
     fn usage(&self) -> &str {

crates/nu-command/src/math/max.rs

@@ -2,7 +2,7 @@ use crate::math::reducers::{reducer_for, Reduce};
 use crate::math::utils::run_with_function;
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{Example, PipelineData, ShellError, Signature, Span, Value};
+use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, Span, Value};
 
 #[derive(Clone)]
 pub struct SubCommand;
@@ -13,7 +13,7 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math max")
+        Signature::build("math max").category(Category::Math)
     }
 
     fn usage(&self) -> &str {

crates/nu-command/src/math/median.rs

@@ -2,7 +2,7 @@ use crate::math::avg::average;
 use crate::math::utils::run_with_function;
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{Example, PipelineData, ShellError, Signature, Span, Value};
+use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, Span, Value};
 
 #[derive(Clone)]
 pub struct SubCommand;
@@ -13,7 +13,7 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math median")
+        Signature::build("math median").category(Category::Math)
     }
 
     fn usage(&self) -> &str {

crates/nu-command/src/math/min.rs

@@ -2,7 +2,7 @@ use crate::math::reducers::{reducer_for, Reduce};
 use crate::math::utils::run_with_function;
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{Example, PipelineData, ShellError, Signature, Span, Value};
+use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, Span, Value};
 
 #[derive(Clone)]
 pub struct SubCommand;
@@ -13,7 +13,7 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math min")
+        Signature::build("math min").category(Category::Math)
     }
 
     fn usage(&self) -> &str {

crates/nu-command/src/math/mode.rs

@@ -1,7 +1,7 @@
 use crate::math::utils::run_with_function;
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{Example, PipelineData, ShellError, Signature, Span, Value};
+use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, Span, Value};
 use std::cmp::Ordering;
 
 #[derive(Clone)]
@@ -36,7 +36,7 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math mode")
+        Signature::build("math mode").category(Category::Math)
     }
 
     fn usage(&self) -> &str {

crates/nu-command/src/math/product.rs

@@ -2,7 +2,7 @@ use crate::math::reducers::{reducer_for, Reduce};
 use crate::math::utils::run_with_function;
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{Example, PipelineData, ShellError, Signature, Span, Value};
+use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, Span, Value};
 
 #[derive(Clone)]
 pub struct SubCommand;
@@ -13,7 +13,7 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math product")
+        Signature::build("math product").category(Category::Math)
     }
 
     fn usage(&self) -> &str {

crates/nu-command/src/math/round.rs

@@ -1,7 +1,9 @@
 use nu_engine::CallExt;
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{Example, PipelineData, ShellError, Signature, Span, SyntaxShape, Value};
+use nu_protocol::{
+    Category, Example, PipelineData, ShellError, Signature, Span, SyntaxShape, Value,
+};
 
 #[derive(Clone)]
 pub struct SubCommand;
@@ -12,12 +14,14 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math round").named(
-            "precision",
-            SyntaxShape::Number,
-            "digits of precision",
-            Some('p'),
-        )
+        Signature::build("math round")
+            .named(
+                "precision",
+                SyntaxShape::Number,
+                "digits of precision",
+                Some('p'),
+            )
+            .category(Category::Math)
     }
 
     fn usage(&self) -> &str {

crates/nu-command/src/math/sqrt.rs

@@ -1,6 +1,6 @@
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{Example, PipelineData, ShellError, Signature, Span, Value};
+use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, Span, Value};
 
 #[derive(Clone)]
 pub struct SubCommand;
@@ -11,7 +11,7 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math sqrt")
+        Signature::build("math sqrt").category(Category::Math)
     }
 
     fn usage(&self) -> &str {

crates/nu-command/src/math/stddev.rs

@@ -2,7 +2,7 @@ use super::variance::compute_variance as variance;
 use crate::math::utils::run_with_function;
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{Example, PipelineData, ShellError, Signature, Span, Value};
+use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, Span, Value};
 
 #[derive(Clone)]
 pub struct SubCommand;
@@ -13,11 +13,9 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math stddev").switch(
-            "sample",
-            "calculate sample standard deviation",
-            Some('s'),
-        )
+        Signature::build("math stddev")
+            .switch("sample", "calculate sample standard deviation", Some('s'))
+            .category(Category::Math)
     }
 
     fn usage(&self) -> &str {

crates/nu-command/src/math/sum.rs

@@ -2,7 +2,7 @@ use crate::math::reducers::{reducer_for, Reduce};
 use crate::math::utils::run_with_function;
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{Example, PipelineData, ShellError, Signature, Span, Value};
+use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, Span, Value};
 
 #[derive(Clone)]
 pub struct SubCommand;
@@ -13,7 +13,7 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math sum")
+        Signature::build("math sum").category(Category::Math)
     }
 
     fn usage(&self) -> &str {

crates/nu-command/src/math/variance.rs

@@ -1,7 +1,7 @@
 use crate::math::utils::run_with_function;
 use nu_protocol::ast::Call;
 use nu_protocol::engine::{Command, EngineState, Stack};
-use nu_protocol::{Example, PipelineData, ShellError, Signature, Span, Value};
+use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, Span, Value};
 
 #[derive(Clone)]
 pub struct SubCommand;
@@ -12,7 +12,9 @@ impl Command for SubCommand {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("math variance").switch("sample", "calculate sample variance", Some('s'))
+        Signature::build("math variance")
+            .switch("sample", "calculate sample variance", Some('s'))
+            .category(Category::Math)
     }
 
     fn usage(&self) -> &str {