Add Github Actions workflow to check for typos (#7892)

- Add Github Actions workflow to check typos
- Fix existing typos

.github/workflows/typos.yml

@@ -0,0 +1,13 @@
+name: Typos
+on: [pull_request]
+
+jobs:
+  run:
+    name: Spell Check with Typos
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Actions Repository
+        uses: actions/checkout@v2
+
+      - name: Check spelling of book
+        uses: crate-ci/typos@master

.typos.toml

@@ -0,0 +1,12 @@
+[files]
+extend-exclude = ["crates/nu-command/tests/commands/table.rs", "*.tsv", "*.json", "*.txt"]
+
+[default.extend-words]
+# Ignore false-positives
+nd = "nd"
+fo = "fo"
+ons = "ons"
+ba = "ba"
+Plasticos = "Plasticos"
+IIF = "IIF"
+numer = "numer"

crates/nu-command/src/bytes/at.rs

@@ -70,8 +70,8 @@ fn parse_range(range: Value, head: Span) -> Result<(isize, isize, Span), ShellEr
             }
         }
         Value::String { val, span } => {
-            let splitted_result = val.split_once(',');
+            let split_result = val.split_once(',');
-            match splitted_result {
+            match split_result {
                 Some((start, end)) => (start.to_string(), end.to_string(), span),
                 None => {
                     return Err(ShellError::UnsupportedInput(

crates/nu-command/src/filters/split_by.rs

@@ -21,7 +21,7 @@ impl Command for SplitBy {
     }
 
     fn usage(&self) -> &str {
-        "Create a new table splitted."
+        "Create a new table split."
     }
 
     fn run(

crates/nu-command/src/network/url/join.rs

@@ -190,7 +190,7 @@ impl UrlComponents {
 
                     if let Some(q) = self.query {
                         if q != qs {
-                            // if query is present it means that also query_span is setted.
+                            // if query is present it means that also query_span is set.
                             return Err(ShellError::IncompatibleParameters {
                                 left_message: format!("Mismatch, qs from params is: {}", qs),
                                 left_span: value.expect_span(),
@@ -248,7 +248,7 @@ impl UrlComponents {
                         "query" => {
                             if let Some(q) = self.query {
                                 if q != s {
-                                    // if query is present it means that also params_span is setted.
+                                    // if query is present it means that also params_span is set.
                                     return Err(ShellError::IncompatibleParameters {
                                         left_message: format!("Mismatch, query param is: {}", s),
                                         left_span: value.expect_span(),

crates/nu-command/src/strings/mod.rs

@@ -23,7 +23,7 @@ use nu_protocol::{ast::Call, ShellError};
 pub fn grapheme_flags(call: &Call) -> Result<bool, ShellError> {
     let g_flag = call.has_flag("grapheme-clusters");
     // Check for the other flags and produce errors if they exist.
-    // Note that Nushell already prevents nonexistant flags from being used with commands,
+    // Note that Nushell already prevents nonexistent flags from being used with commands,
     // so this function can be reused for both the --utf-8-bytes commands and the --code-points commands.
     if g_flag && call.has_flag("utf-8-bytes") {
         Err(ShellError::IncompatibleParametersSingle(