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Merge pull request #5016 from epage/export
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fix(builder): Re-export anstyle for easy access
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epage authored Jul 18, 2023
2 parents 98f62d1 + 82f17a4 commit f679873
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Showing 7 changed files with 245 additions and 180 deletions.
9 changes: 7 additions & 2 deletions clap_builder/src/builder/command.rs
Original file line number Diff line number Diff line change
Expand Up @@ -1111,9 +1111,14 @@ impl Command {
///
/// ```no_run
/// # use clap_builder as clap;
/// # use clap::{Command, ColorChoice, builder::Styles};
/// # use clap::{Command, ColorChoice, builder::styling};
/// let styles = styling::Styles::styled()
/// .header(styling::AnsiColor::Green.on_default() | styling::Effects::BOLD)
/// .usage(styling::AnsiColor::Green.on_default() | styling::Effects::BOLD)
/// .literal(styling::AnsiColor::Blue.on_default() | styling::Effects::BOLD)
/// .placeholder(styling::AnsiColor::Cyan.on_default());
/// Command::new("myprog")
/// .styles(Styles::styled().usage(Default::default()))
/// .styles(styles)
/// .get_matches();
/// ```
#[cfg(feature = "color")]
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9 changes: 7 additions & 2 deletions clap_builder/src/builder/mod.rs
Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,11 @@ mod debug_asserts;
#[cfg(test)]
mod tests;

#[cfg(feature = "unstable-styles")]
pub mod styling;
#[cfg(not(feature = "unstable-styles"))]
pub(crate) mod styling;

pub use self::str::Str;
pub use action::ArgAction;
pub use arg::Arg;
Expand All @@ -36,7 +41,7 @@ pub use resettable::IntoResettable;
pub use resettable::Resettable;
pub use styled_str::StyledStr;
#[cfg(feature = "unstable-styles")]
pub use styled_str::Styles;
pub use styling::Styles;
pub use value_hint::ValueHint;
pub use value_parser::_AutoValueParser;
pub use value_parser::via_prelude;
Expand All @@ -63,4 +68,4 @@ pub(crate) use action::CountType;
pub(crate) use arg_settings::{ArgFlags, ArgSettings};
pub(crate) use command::AppTag;
#[cfg(not(feature = "unstable-styles"))]
pub(crate) use styled_str::Styles;
pub(crate) use styling::Styles;
161 changes: 0 additions & 161 deletions clap_builder/src/builder/styled_str.rs
Original file line number Diff line number Diff line change
Expand Up @@ -197,164 +197,3 @@ impl std::fmt::Display for StyledStr {
Ok(())
}
}

/// Terminal styling definitions
#[derive(Clone, Debug)]
#[allow(missing_copy_implementations)] // Large enough type that I want an explicit `clone()` for now
pub struct Styles {
header: anstyle::Style,
error: anstyle::Style,
usage: anstyle::Style,
literal: anstyle::Style,
placeholder: anstyle::Style,
valid: anstyle::Style,
invalid: anstyle::Style,
}

impl Styles {
/// No terminal styling
pub const fn plain() -> Self {
Self {
header: anstyle::Style::new(),
error: anstyle::Style::new(),
usage: anstyle::Style::new(),
literal: anstyle::Style::new(),
placeholder: anstyle::Style::new(),
valid: anstyle::Style::new(),
invalid: anstyle::Style::new(),
}
}

/// Default terminal styling
pub const fn styled() -> Self {
#[cfg(feature = "color")]
{
Self {
header: anstyle::Style::new().bold().underline(),
error: anstyle::Style::new()
.fg_color(Some(anstyle::Color::Ansi(anstyle::AnsiColor::Red)))
.bold(),
usage: anstyle::Style::new().bold().underline(),
literal: anstyle::Style::new().bold(),
placeholder: anstyle::Style::new(),
valid: anstyle::Style::new()
.fg_color(Some(anstyle::Color::Ansi(anstyle::AnsiColor::Green))),
invalid: anstyle::Style::new()
.fg_color(Some(anstyle::Color::Ansi(anstyle::AnsiColor::Yellow))),
}
}
#[cfg(not(feature = "color"))]
{
Self::plain()
}
}

/// General Heading style, e.g. [`help_heading`][crate::Arg::help_heading]
#[inline]
pub const fn header(mut self, style: anstyle::Style) -> Self {
self.header = style;
self
}

/// Error heading
#[inline]
pub const fn error(mut self, style: anstyle::Style) -> Self {
self.error = style;
self
}

/// Usage heading
#[inline]
pub const fn usage(mut self, style: anstyle::Style) -> Self {
self.usage = style;
self
}

/// Literal command-line syntax, e.g. `--help`
#[inline]
pub const fn literal(mut self, style: anstyle::Style) -> Self {
self.literal = style;
self
}

/// Descriptions within command-line syntax, e.g. [`value_name`][crate::Arg::value_name]
#[inline]
pub const fn placeholder(mut self, style: anstyle::Style) -> Self {
self.placeholder = style;
self
}

/// Highlight suggested usage
#[inline]
pub const fn valid(mut self, style: anstyle::Style) -> Self {
self.valid = style;
self
}

/// Highlight invalid usage
#[inline]
pub const fn invalid(mut self, style: anstyle::Style) -> Self {
self.invalid = style;
self
}
}

/// Reflection
impl Styles {
/// General Heading style, e.g. [`help_heading`][crate::Arg::help_heading]
#[inline(always)]
pub const fn get_header(&self) -> &anstyle::Style {
&self.header
}

/// Error heading
#[inline(always)]
pub const fn get_error(&self) -> &anstyle::Style {
&self.error
}

/// Usage heading
#[inline(always)]
pub const fn get_usage(&self) -> &anstyle::Style {
&self.usage
}

/// Literal command-line syntax, e.g. `--help`
#[inline(always)]
pub const fn get_literal(&self) -> &anstyle::Style {
&self.literal
}

/// Descriptions within command-line syntax, e.g. [`value_name`][crate::Arg::value_name]
#[inline(always)]
pub const fn get_placeholder(&self) -> &anstyle::Style {
&self.placeholder
}

/// Highlight suggested usage
#[inline(always)]
pub const fn get_valid(&self) -> &anstyle::Style {
&self.valid
}

/// Highlight invalid usage
#[inline(always)]
pub const fn get_invalid(&self) -> &anstyle::Style {
&self.invalid
}
}

impl super::AppTag for Styles {}

impl Default for Styles {
fn default() -> Self {
Self::styled()
}
}

impl Default for &'_ Styles {
fn default() -> Self {
const STYLES: Styles = Styles::styled();
&STYLES
}
}
181 changes: 181 additions & 0 deletions clap_builder/src/builder/styling.rs
Original file line number Diff line number Diff line change
@@ -0,0 +1,181 @@
//! Terminal [`Styles`] for help and error output

pub use anstyle::*;

/// Terminal styling definitions
///
/// See also [`Command::styles`][crate::Command::styles].
///
/// # Example
///
/// clap v3 styling
/// ```rust
/// # #[cfg(feature = "unstable-styles")] {
/// # use clap_builder as clap;
/// # use clap::builder::styling::*;
/// let styles = Styles::styled()
/// .header(AnsiColor::Yellow.on_default())
/// .usage(AnsiColor::Green.on_default())
/// .literal(AnsiColor::Green.on_default())
/// .placeholder(AnsiColor::Green.on_default());
/// # }
/// ```
#[derive(Clone, Debug)]
#[allow(missing_copy_implementations)] // Large enough type that I want an explicit `clone()` for now
pub struct Styles {
header: anstyle::Style,
error: anstyle::Style,
usage: anstyle::Style,
literal: anstyle::Style,
placeholder: anstyle::Style,
valid: anstyle::Style,
invalid: anstyle::Style,
}

impl Styles {
/// No terminal styling
pub const fn plain() -> Self {
Self {
header: anstyle::Style::new(),
error: anstyle::Style::new(),
usage: anstyle::Style::new(),
literal: anstyle::Style::new(),
placeholder: anstyle::Style::new(),
valid: anstyle::Style::new(),
invalid: anstyle::Style::new(),
}
}

/// Default terminal styling
pub const fn styled() -> Self {
#[cfg(feature = "color")]
{
Self {
header: anstyle::Style::new().bold().underline(),
error: anstyle::Style::new()
.fg_color(Some(anstyle::Color::Ansi(anstyle::AnsiColor::Red)))
.bold(),
usage: anstyle::Style::new().bold().underline(),
literal: anstyle::Style::new().bold(),
placeholder: anstyle::Style::new(),
valid: anstyle::Style::new()
.fg_color(Some(anstyle::Color::Ansi(anstyle::AnsiColor::Green))),
invalid: anstyle::Style::new()
.fg_color(Some(anstyle::Color::Ansi(anstyle::AnsiColor::Yellow))),
}
}
#[cfg(not(feature = "color"))]
{
Self::plain()
}
}

/// General Heading style, e.g. [`help_heading`][crate::Arg::help_heading]
#[inline]
pub const fn header(mut self, style: anstyle::Style) -> Self {
self.header = style;
self
}

/// Error heading
#[inline]
pub const fn error(mut self, style: anstyle::Style) -> Self {
self.error = style;
self
}

/// Usage heading
#[inline]
pub const fn usage(mut self, style: anstyle::Style) -> Self {
self.usage = style;
self
}

/// Literal command-line syntax, e.g. `--help`
#[inline]
pub const fn literal(mut self, style: anstyle::Style) -> Self {
self.literal = style;
self
}

/// Descriptions within command-line syntax, e.g. [`value_name`][crate::Arg::value_name]
#[inline]
pub const fn placeholder(mut self, style: anstyle::Style) -> Self {
self.placeholder = style;
self
}

/// Highlight suggested usage
#[inline]
pub const fn valid(mut self, style: anstyle::Style) -> Self {
self.valid = style;
self
}

/// Highlight invalid usage
#[inline]
pub const fn invalid(mut self, style: anstyle::Style) -> Self {
self.invalid = style;
self
}
}

/// Reflection
impl Styles {
/// General Heading style, e.g. [`help_heading`][crate::Arg::help_heading]
#[inline(always)]
pub const fn get_header(&self) -> &anstyle::Style {
&self.header
}

/// Error heading
#[inline(always)]
pub const fn get_error(&self) -> &anstyle::Style {
&self.error
}

/// Usage heading
#[inline(always)]
pub const fn get_usage(&self) -> &anstyle::Style {
&self.usage
}

/// Literal command-line syntax, e.g. `--help`
#[inline(always)]
pub const fn get_literal(&self) -> &anstyle::Style {
&self.literal
}

/// Descriptions within command-line syntax, e.g. [`value_name`][crate::Arg::value_name]
#[inline(always)]
pub const fn get_placeholder(&self) -> &anstyle::Style {
&self.placeholder
}

/// Highlight suggested usage
#[inline(always)]
pub const fn get_valid(&self) -> &anstyle::Style {
&self.valid
}

/// Highlight invalid usage
#[inline(always)]
pub const fn get_invalid(&self) -> &anstyle::Style {
&self.invalid
}
}

impl super::AppTag for Styles {}

impl Default for Styles {
fn default() -> Self {
Self::styled()
}
}

impl Default for &'_ Styles {
fn default() -> Self {
const STYLES: Styles = Styles::styled();
&STYLES
}
}
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