add mysql/mysql_unicode output formats

The difference being that for the mysql formats, numbers are right
aligned.

Addresses dbcli/mycli#1102 .

Author: rolandwalker

CHANGELOG

@@ -1,12 +1,20 @@
 # Changelog
 
+## Version 2.7.0
+
+- Add `mysql` and `mysql_unicode` output formats which right-align numbers.
+
 ## Version 2.6.0
 
+(released on 2025-07-12)
+
 - Register the JSON formats so they are actually usable.
 - Make JSON formats able to encode Decimals and None/NULLs.
 
 ## Version 2.5.0
 
+(released on 2025-07-10)
+
 - Added noheader CSV and TSV output formats.
 - Added `jsonl` and `jsonl_escaped` output formats.
 

cli_helpers/tabular_output/tabulate_adapter.py

@@ -63,13 +63,37 @@
     with_header_hide=None,
 )
 
+tabulate._table_formats["mysql"] = tabulate.TableFormat(
+    lineabove=tabulate.Line("+", "-", "+", "+"),
+    linebelowheader=tabulate.Line("+", "-", "+", "+"),
+    linebetweenrows=None,
+    linebelow=tabulate.Line("+", "-", "+", "+"),
+    headerrow=tabulate.DataRow("|", "|", "|"),
+    datarow=tabulate.DataRow("|", "|", "|"),
+    padding=1,
+    with_header_hide=None,
+)
+
+tabulate._table_formats["mysql_unicode"] = tabulate.TableFormat(
+    lineabove=tabulate.Line("┌", "─", "┬", "┐"),
+    linebelowheader=tabulate.Line("├", "─", "┼", "┤"),
+    linebetweenrows=None,
+    linebelow=tabulate.Line("└", "─", "┴", "┘"),
+    headerrow=tabulate.DataRow("│", "│", "│"),
+    datarow=tabulate.DataRow("│", "│", "│"),
+    padding=1,
+    with_header_hide=None,
+)
+
 # "minimal" is the same as "plain", but without headers
 tabulate._table_formats["minimal"] = tabulate._table_formats["plain"]
 
 tabulate.multiline_formats["psql_unicode"] = "psql_unicode"
 tabulate.multiline_formats["double"] = "double"
 tabulate.multiline_formats["ascii"] = "ascii"
 tabulate.multiline_formats["minimal"] = "minimal"
+tabulate.multiline_formats["mysql"] = "mysql"
+tabulate.multiline_formats["mysql_unicode"] = "mysql_unicode"
 
 supported_markup_formats = (
     "mediawiki",
@@ -95,13 +119,17 @@
     "rst",
     "github",
     "double",
+    "mysql",
+    "mysql_unicode",
 )
 
 supported_formats = supported_markup_formats + supported_table_formats
 
 default_kwargs = {
     "ascii": {"numalign": "left"},
     "ascii_escaped": {"numalign": "left"},
+    "mysql": {"numalign": "right"},
+    "mysql_unicode": {"numalign": "right"},
 }
 headless_formats = ("minimal",)
 

tests/tabular_output/test_output_formatter.py

@@ -83,6 +83,80 @@ def test_tabular_output_escaped():
     )
 
 
+def test_tabular_output_mysql():
+    """Test the mysql output format."""
+    headers = ["text", "numeric"]
+    data = [
+        ["abc", Decimal(1)],
+        ["defg", Decimal("11.1")],
+        ["hi", Decimal("1.1")],
+        ["Pablo\rß\n", 0],
+    ]
+    expected = dedent(
+        """\
+        +-------+---------+
+        | text  | numeric |
+        +-------+---------+
+        | abc   |       1 |
+        | defg  |    11.1 |
+        | hi    |     1.1 |
+        | Pablo |       0 |
+        | ß     |         |
+        +-------+---------+"""
+    )
+
+    print(expected)
+    print(
+        "\n".join(
+            TabularOutputFormatter().format_output(
+                iter(data), headers, format_name="mysql"
+            )
+        )
+    )
+    assert expected == "\n".join(
+        TabularOutputFormatter().format_output(
+            iter(data), headers, format_name="mysql"
+        )
+    )
+
+
+def test_tabular_output_mysql_unicode():
+    """Test the mysql_unicode output format."""
+    headers = ["text", "numeric"]
+    data = [
+        ["abc", Decimal(1)],
+        ["defg", Decimal("11.1")],
+        ["hi", Decimal("1.1")],
+        ["Pablo\rß\n", 0],
+    ]
+    expected = dedent(
+        """\
+        ┌───────┬─────────┐
+        │ text  │ numeric │
+        ├───────┼─────────┤
+        │ abc   │       1 │
+        │ defg  │    11.1 │
+        │ hi    │     1.1 │
+        │ Pablo │       0 │
+        │ ß     │         │
+        └───────┴─────────┘"""
+    )
+
+    print(expected)
+    print(
+        "\n".join(
+            TabularOutputFormatter().format_output(
+                iter(data), headers, format_name="mysql_unicode"
+            )
+        )
+    )
+    assert expected == "\n".join(
+        TabularOutputFormatter().format_output(
+            iter(data), headers, format_name="mysql_unicode"
+        )
+    )
+
+
 def test_tabular_format_output_wrapper():
     """Test the format_output wrapper."""
     data = [["1", None], ["2", "Sam"], ["3", "Joe"]]