Add "io" to default excluded short names for field and declaration naming rule

i.e., by default if you have a min of 3 charactors `io` (common in 0.16) will not trigger it.

This also uses a consistent list for fields and declarations so they both stay in sync

This unfortunately isn't handled well in the doc generation (prints the defaults variable name and not its values) but I don't think worth fixing within this commit as auto generated documentation is a lower priority atm.

Author: KurtWagner

RULES.md

@@ -77,7 +77,7 @@ Enforces that variable declaration names use consistent naming. For example,
 
   * Exclude these declaration names from min and max declaration name checks.
 
-  * **Default:** `&.{ "x", "y", "z", "i", "b", "it", "ip", "c", }`
+  * **Default:** `zlinter.strings.default_excluded_short_names`
 
 ## `field_naming`
 
@@ -156,7 +156,7 @@ example, `struct`, `enum`, `union`, `opaque` and `error`.
 
   * Exclude these `struct` field names from min and max `struct` field name checks.
 
-  * **Default:** `&.{ "x", "y", "z", "i", "b" }`
+  * **Default:** `zlinter.strings.default_excluded_short_names`
 
 * `struct_field_that_is_type`
 
@@ -204,7 +204,7 @@ example, `struct`, `enum`, `union`, `opaque` and `error`.
 
   * Exclude these `union` field names from min and max `union` field name checks.
 
-  * **Default:** `&.{ "x", "y", "z", "i", "b" }`
+  * **Default:** `zlinter.strings.default_excluded_short_names`
 
 ## `field_ordering`
 

src/lib/strings.zig

@@ -82,4 +82,16 @@ pub fn debugPrintMultilineString(source: []const u8, writer: anytype, indent: us
         writer.print("\n{s}\\\\{s}", .{ indent_str, line });
 }
 
+pub const default_excluded_short_names: []const []const u8 = &.{
+    "x",
+    "y",
+    "z",
+    "i",
+    "b",
+    "it",
+    "ip",
+    "c",
+    "io",
+};
+
 const std = @import("std");

src/rules/declaration_naming.zig

@@ -74,16 +74,7 @@ pub const Config = struct {
     },
 
     /// Exclude these declaration names from min and max declaration name checks.
-    decl_name_exclude_len: []const []const u8 = &.{
-        "x",
-        "y",
-        "z",
-        "i",
-        "b",
-        "it",
-        "ip",
-        "c",
-    },
+    decl_name_exclude_len: []const []const u8 = zlinter.strings.default_excluded_short_names,
 };
 
 /// Builds and returns the declaration_naming rule.

src/rules/field_naming.zig

@@ -76,7 +76,7 @@ pub const Config = struct {
     },
 
     /// Exclude these `struct` field names from min and max `struct` field name checks.
-    struct_field_exclude_len: []const []const u8 = &.{ "x", "y", "z", "i", "b" },
+    struct_field_exclude_len: []const []const u8 = zlinter.strings.default_excluded_short_names,
 
     /// Like `struct_field` but for fields with type `type`
     struct_field_that_is_type: zlinter.rules.LintTextStyleWithSeverity = .{
@@ -125,7 +125,7 @@ pub const Config = struct {
     },
 
     /// Exclude these `union` field names from min and max `union` field name checks.
-    union_field_exclude_len: []const []const u8 = &.{ "x", "y", "z", "i", "b" },
+    union_field_exclude_len: []const []const u8 = zlinter.strings.default_excluded_short_names,
 };
 
 /// Builds and returns the field_naming rule.