Add long options for core and dataframes (#10619)

crates/nu-cmd-dataframe/src/dataframe/eager/sample.rs

@@ -52,12 +52,13 @@ impl Command for SampleDF {
         vec![
             Example {
                 description: "Sample rows from dataframe",
-                example: "[[a b]; [1 2] [3 4]] | dfr into-df | dfr sample -n 1",
+                example: "[[a b]; [1 2] [3 4]] | dfr into-df | dfr sample --n-rows 1",
                 result: None, // No expected value because sampling is random
             },
             Example {
                 description: "Shows sample row using fraction and replace",
-                example: "[[a b]; [1 2] [3 4] [5 6]] | dfr into-df | dfr sample -f 0.5 -e",
+                example:
+                    "[[a b]; [1 2] [3 4] [5 6]] | dfr into-df | dfr sample --fraction 0.5 --replace",
                 result: None, // No expected value because sampling is random
             },
         ]

crates/nu-cmd-dataframe/src/dataframe/eager/to_csv.rs

@@ -45,7 +45,7 @@ impl Command for ToCSV {
             },
             Example {
                 description: "Saves dataframe to CSV file using other delimiter",
-                example: "[[a b]; [1 2] [3 4]] | dfr into-df | dfr to-csv test.csv -d '|'",
+                example: "[[a b]; [1 2] [3 4]] | dfr into-df | dfr to-csv test.csv --delimiter '|'",
                 result: None,
             },
         ]

crates/nu-cmd-dataframe/src/dataframe/eager/to_nu.rs

@@ -61,7 +61,7 @@ impl Command for ToNu {
             },
             Example {
                 description: "Shows tail rows from dataframe",
-                example: "[[a b]; [1 2] [5 6] [3 4]] | dfr into-df | dfr into-nu -t -n 1",
+                example: "[[a b]; [1 2] [5 6] [3 4]] | dfr into-df | dfr into-nu --tail --rows 1",
                 result: Some(Value::list(vec![rec_3], Span::test_data())),
             },
             Example {

crates/nu-cmd-dataframe/src/dataframe/series/date/get_day.rs

@@ -31,7 +31,7 @@ impl Command for GetDay {
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Returns day from a date",
-            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime -z 'UTC');
+            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime --timezone 'UTC');
     let df = ([$dt $dt] | dfr into-df);
     $df | dfr get-day"#,
             result: Some(

crates/nu-cmd-dataframe/src/dataframe/series/date/get_hour.rs

@@ -31,7 +31,7 @@ impl Command for GetHour {
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Returns hour from a date",
-            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime -z 'UTC');
+            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime --timezone 'UTC');
     let df = ([$dt $dt] | dfr into-df);
     $df | dfr get-hour"#,
             result: Some(

crates/nu-cmd-dataframe/src/dataframe/series/date/get_minute.rs

@@ -31,7 +31,7 @@ impl Command for GetMinute {
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Returns minute from a date",
-            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime -z 'UTC');
+            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime --timezone 'UTC');
     let df = ([$dt $dt] | dfr into-df);
     $df | dfr get-minute"#,
             result: Some(

crates/nu-cmd-dataframe/src/dataframe/series/date/get_month.rs

@@ -31,7 +31,7 @@ impl Command for GetMonth {
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Returns month from a date",
-            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime -z 'UTC');
+            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime --timezone 'UTC');
     let df = ([$dt $dt] | dfr into-df);
     $df | dfr get-month"#,
             result: Some(

crates/nu-cmd-dataframe/src/dataframe/series/date/get_nanosecond.rs

@@ -31,7 +31,7 @@ impl Command for GetNanosecond {
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Returns nanosecond from a date",
-            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime -z 'UTC');
+            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime --timezone 'UTC');
     let df = ([$dt $dt] | dfr into-df);
     $df | dfr get-nanosecond"#,
             result: Some(

crates/nu-cmd-dataframe/src/dataframe/series/date/get_ordinal.rs

@@ -31,7 +31,7 @@ impl Command for GetOrdinal {
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Returns ordinal from a date",
-            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime -z 'UTC');
+            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime --timezone 'UTC');
     let df = ([$dt $dt] | dfr into-df);
     $df | dfr get-ordinal"#,
             result: Some(

crates/nu-cmd-dataframe/src/dataframe/series/date/get_second.rs

@@ -31,7 +31,7 @@ impl Command for GetSecond {
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Returns second from a date",
-            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime -z 'UTC');
+            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime --timezone 'UTC');
     let df = ([$dt $dt] | dfr into-df);
     $df | dfr get-second"#,
             result: Some(

crates/nu-cmd-dataframe/src/dataframe/series/date/get_week.rs

@@ -31,7 +31,7 @@ impl Command for GetWeek {
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Returns week from a date",
-            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime -z 'UTC');
+            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime --timezone 'UTC');
     let df = ([$dt $dt] | dfr into-df);
     $df | dfr get-week"#,
             result: Some(

crates/nu-cmd-dataframe/src/dataframe/series/date/get_weekday.rs

@@ -31,7 +31,7 @@ impl Command for GetWeekDay {
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Returns weekday from a date",
-            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime -z 'UTC');
+            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime --timezone 'UTC');
     let df = ([$dt $dt] | dfr into-df);
     $df | dfr get-weekday"#,
             result: Some(

crates/nu-cmd-dataframe/src/dataframe/series/date/get_year.rs

@@ -31,7 +31,7 @@ impl Command for GetYear {
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Returns year from a date",
-            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime -z 'UTC');
+            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime --timezone 'UTC');
     let df = ([$dt $dt] | dfr into-df);
     $df | dfr get-year"#,
             result: Some(

crates/nu-cmd-dataframe/src/dataframe/series/indexes/arg_sort.rs

@@ -61,7 +61,7 @@ impl Command for ArgSort {
             },
             Example {
                 description: "Returns indexes for a sorted series",
-                example: "[1 2 2 3 3] | dfr into-df | dfr arg-sort -r",
+                example: "[1 2 2 3 3] | dfr into-df | dfr arg-sort --reverse",
                 result: Some(
                     NuDataFrame::try_from_columns(vec![Column::new(
                         "arg_sort".to_string(),

crates/nu-cmd-dataframe/src/dataframe/series/indexes/set_with_idx.rs

@@ -41,7 +41,7 @@ impl Command for SetWithIndex {
             description: "Set value in selected rows from series",
             example: r#"let series = ([4 1 5 2 4 3] | dfr into-df);
     let indices = ([0 2] | dfr into-df);
-    $series | dfr set-with-idx 6 -i $indices"#,
+    $series | dfr set-with-idx 6 --indices $indices"#,
             result: Some(
                 NuDataFrame::try_from_columns(vec![Column::new(
                     "0".to_string(),

crates/nu-cmd-dataframe/src/dataframe/series/string/replace.rs

@@ -44,7 +44,7 @@ impl Command for Replace {
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Replaces string",
-            example: "[abc abc abc] | dfr into-df | dfr replace -p ab -r AB",
+            example: "[abc abc abc] | dfr into-df | dfr replace --pattern ab --replace AB",
             result: Some(
                 NuDataFrame::try_from_columns(vec![Column::new(
                     "0".to_string(),

crates/nu-cmd-dataframe/src/dataframe/series/string/replace_all.rs

@@ -44,7 +44,7 @@ impl Command for ReplaceAll {
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Replaces string",
-            example: "[abac abac abac] | dfr into-df | dfr replace-all -p a -r A",
+            example: "[abac abac abac] | dfr into-df | dfr replace-all --pattern a --replace A",
             result: Some(
                 NuDataFrame::try_from_columns(vec![Column::new(
                     "0".to_string(),

crates/nu-cmd-dataframe/src/dataframe/series/string/str_slice.rs

@@ -34,7 +34,7 @@ impl Command for StrSlice {
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Creates slices from the strings",
-            example: "[abcded abc321 abc123] | dfr into-df | dfr str-slice 1 -l 2",
+            example: "[abcded abc321 abc123] | dfr into-df | dfr str-slice 1 --length 2",
             result: Some(
                 NuDataFrame::try_from_columns(vec![Column::new(
                     "0".to_string(),

crates/nu-cmd-dataframe/src/dataframe/series/string/strftime.rs

@@ -33,7 +33,7 @@ impl Command for StrFTime {
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Formats date",
-            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime -z 'UTC');
+            example: r#"let dt = ('2020-08-04T16:39:18+00:00' | into datetime --timezone 'UTC');
     let df = ([$dt $dt] | dfr into-df);
     $df | dfr strftime "%Y/%m/%d""#,
             result: Some(