386 lines
10 KiB
Rust
386 lines
10 KiB
Rust
// Copyright 2016 Joe Wilm, The Alacritty Project Contributors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use std::borrow::Cow;
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use std::collections::HashMap;
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use std::fmt::Display;
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use std::path::PathBuf;
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use log::error;
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use serde::{Deserialize, Deserializer};
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use serde_yaml::Value;
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mod colors;
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mod debug;
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mod font;
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mod scrolling;
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mod visual_bell;
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mod window;
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use crate::ansi::{CursorStyle, NamedColor};
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pub use crate::config::colors::Colors;
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pub use crate::config::debug::Debug;
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pub use crate::config::font::{Font, FontDescription};
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pub use crate::config::scrolling::Scrolling;
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pub use crate::config::visual_bell::{VisualBellAnimation, VisualBellConfig};
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pub use crate::config::window::{Decorations, Dimensions, StartupMode, WindowConfig, DEFAULT_NAME};
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use crate::term::color::Rgb;
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pub const LOG_TARGET_CONFIG: &str = "alacritty_config";
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const MAX_SCROLLBACK_LINES: u32 = 100_000;
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pub type MockConfig = Config<HashMap<String, serde_yaml::Value>>;
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/// Top-level config type
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#[derive(Debug, PartialEq, Default, Deserialize)]
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pub struct Config<T> {
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/// Pixel padding
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#[serde(default, deserialize_with = "failure_default")]
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pub padding: Option<Delta<u8>>,
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/// TERM env variable
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#[serde(default, deserialize_with = "failure_default")]
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pub env: HashMap<String, String>,
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/// Font configuration
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#[serde(default, deserialize_with = "failure_default")]
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pub font: Font,
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/// Should draw bold text with brighter colors instead of bold font
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#[serde(default, deserialize_with = "failure_default")]
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draw_bold_text_with_bright_colors: bool,
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#[serde(default, deserialize_with = "failure_default")]
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pub colors: Colors,
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/// Background opacity from 0.0 to 1.0
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#[serde(default, deserialize_with = "failure_default")]
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background_opacity: Alpha,
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/// Window configuration
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#[serde(default, deserialize_with = "failure_default")]
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pub window: WindowConfig,
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#[serde(default, deserialize_with = "failure_default")]
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pub selection: Selection,
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/// Path to a shell program to run on startup
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#[serde(default, deserialize_with = "from_string_or_deserialize")]
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pub shell: Option<Shell<'static>>,
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/// Path where config was loaded from
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#[serde(default, deserialize_with = "failure_default")]
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pub config_path: Option<PathBuf>,
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/// Visual bell configuration
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#[serde(default, deserialize_with = "failure_default")]
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pub visual_bell: VisualBellConfig,
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/// Use dynamic title
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#[serde(default, deserialize_with = "failure_default")]
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dynamic_title: DefaultTrueBool,
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/// Live config reload
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#[serde(default, deserialize_with = "failure_default")]
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live_config_reload: DefaultTrueBool,
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/// How much scrolling history to keep
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#[serde(default, deserialize_with = "failure_default")]
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pub scrolling: Scrolling,
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/// Cursor configuration
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#[serde(default, deserialize_with = "failure_default")]
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pub cursor: Cursor,
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/// Use WinPTY backend even if ConPTY is available
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#[cfg(windows)]
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#[serde(default, deserialize_with = "failure_default")]
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pub winpty_backend: bool,
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/// Send escape sequences using the alt key.
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#[serde(default, deserialize_with = "failure_default")]
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alt_send_esc: DefaultTrueBool,
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/// Shell startup directory
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#[serde(default, deserialize_with = "option_explicit_none")]
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pub working_directory: Option<PathBuf>,
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/// Debug options
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#[serde(default, deserialize_with = "failure_default")]
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pub debug: Debug,
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/// Additional configuration options not directly required by the terminal
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#[serde(flatten)]
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pub ui_config: T,
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/// Remain open after child process exits
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#[serde(skip)]
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pub hold: bool,
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// TODO: REMOVED
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#[serde(default, deserialize_with = "failure_default")]
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pub tabspaces: Option<usize>,
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// TODO: DEPRECATED
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#[serde(default, deserialize_with = "failure_default")]
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pub render_timer: Option<bool>,
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// TODO: DEPRECATED
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#[serde(default, deserialize_with = "failure_default")]
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pub persistent_logging: Option<bool>,
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}
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impl<T> Config<T> {
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#[inline]
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pub fn draw_bold_text_with_bright_colors(&self) -> bool {
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self.draw_bold_text_with_bright_colors
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}
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/// Should show render timer
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#[inline]
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pub fn render_timer(&self) -> bool {
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self.render_timer.unwrap_or(self.debug.render_timer)
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}
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/// Live config reload
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#[inline]
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pub fn live_config_reload(&self) -> bool {
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self.live_config_reload.0
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}
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#[inline]
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pub fn set_live_config_reload(&mut self, live_config_reload: bool) {
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self.live_config_reload.0 = live_config_reload;
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}
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#[inline]
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pub fn dynamic_title(&self) -> bool {
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self.dynamic_title.0
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}
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/// Cursor foreground color.
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#[inline]
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pub fn cursor_text_color(&self) -> Option<Rgb> {
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self.colors.cursor.text
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}
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/// Cursor background color.
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#[inline]
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pub fn cursor_cursor_color(&self) -> Option<NamedColor> {
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self.colors.cursor.cursor.map(|_| NamedColor::Cursor)
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}
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/// Vi mode cursor foreground color.
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#[inline]
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pub fn vi_mode_cursor_text_color(&self) -> Option<Rgb> {
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self.colors.vi_mode_cursor.text
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}
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/// Vi mode cursor background color.
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#[inline]
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pub fn vi_mode_cursor_cursor_color(&self) -> Option<Rgb> {
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self.colors.vi_mode_cursor.cursor
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}
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#[inline]
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pub fn set_dynamic_title(&mut self, dynamic_title: bool) {
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self.dynamic_title.0 = dynamic_title;
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}
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/// Send escape sequences using the alt key
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#[inline]
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pub fn alt_send_esc(&self) -> bool {
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self.alt_send_esc.0
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}
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/// Keep the log file after quitting Alacritty
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#[inline]
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pub fn persistent_logging(&self) -> bool {
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self.persistent_logging.unwrap_or(self.debug.persistent_logging)
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}
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#[inline]
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pub fn background_opacity(&self) -> f32 {
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self.background_opacity.0
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}
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}
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#[serde(default)]
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#[derive(Deserialize, Default, Clone, Debug, PartialEq, Eq)]
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pub struct Selection {
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#[serde(deserialize_with = "failure_default")]
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semantic_escape_chars: EscapeChars,
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#[serde(deserialize_with = "failure_default")]
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pub save_to_clipboard: bool,
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}
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impl Selection {
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pub fn semantic_escape_chars(&self) -> &str {
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&self.semantic_escape_chars.0
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}
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}
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#[derive(Deserialize, Clone, Debug, PartialEq, Eq)]
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struct EscapeChars(String);
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impl Default for EscapeChars {
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fn default() -> Self {
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EscapeChars(String::from(",│`|:\"' ()[]{}<>\t"))
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}
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}
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#[serde(default)]
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#[derive(Deserialize, Copy, Clone, Debug, Default, PartialEq, Eq)]
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pub struct Cursor {
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#[serde(deserialize_with = "failure_default")]
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pub style: CursorStyle,
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#[serde(deserialize_with = "option_explicit_none")]
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pub vi_mode_style: Option<CursorStyle>,
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#[serde(deserialize_with = "failure_default")]
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unfocused_hollow: DefaultTrueBool,
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}
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impl Cursor {
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pub fn unfocused_hollow(self) -> bool {
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self.unfocused_hollow.0
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}
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}
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#[derive(Clone, Debug, Deserialize, PartialEq, Eq)]
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pub struct Shell<'a> {
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pub program: Cow<'a, str>,
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#[serde(default, deserialize_with = "failure_default")]
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pub args: Vec<String>,
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}
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impl<'a> Shell<'a> {
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pub fn new<S>(program: S) -> Shell<'a>
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where
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S: Into<Cow<'a, str>>,
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{
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Shell { program: program.into(), args: Vec::new() }
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}
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pub fn new_with_args<S>(program: S, args: Vec<String>) -> Shell<'a>
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where
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S: Into<Cow<'a, str>>,
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{
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Shell { program: program.into(), args }
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}
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}
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impl FromString for Option<Shell<'_>> {
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fn from(input: String) -> Self {
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Some(Shell::new(input))
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}
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}
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/// A delta for a point in a 2 dimensional plane
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#[serde(default, bound(deserialize = "T: Deserialize<'de> + Default"))]
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#[derive(Clone, Copy, Debug, Default, Deserialize, PartialEq, Eq)]
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pub struct Delta<T: Default + PartialEq + Eq> {
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/// Horizontal change
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#[serde(deserialize_with = "failure_default")]
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pub x: T,
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/// Vertical change
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#[serde(deserialize_with = "failure_default")]
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pub y: T,
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}
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/// Wrapper around f32 that represents an alpha value between 0.0 and 1.0
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#[derive(Clone, Copy, Debug, PartialEq)]
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pub struct Alpha(f32);
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impl Alpha {
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pub fn new(value: f32) -> Self {
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Alpha(if value < 0.0 {
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0.0
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} else if value > 1.0 {
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1.0
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} else {
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value
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})
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}
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}
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impl Default for Alpha {
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fn default() -> Self {
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Alpha(1.0)
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}
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}
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impl<'a> Deserialize<'a> for Alpha {
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
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where
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D: Deserializer<'a>,
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{
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Ok(Alpha::new(f32::deserialize(deserializer)?))
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}
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}
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#[derive(Deserialize, Copy, Clone, Debug, PartialEq, Eq)]
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struct DefaultTrueBool(bool);
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impl Default for DefaultTrueBool {
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fn default() -> Self {
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DefaultTrueBool(true)
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}
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}
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fn fallback_default<T, E>(err: E) -> T
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where
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T: Default,
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E: Display,
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{
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error!(target: LOG_TARGET_CONFIG, "Problem with config: {}; using default value", err);
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T::default()
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}
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pub fn failure_default<'a, D, T>(deserializer: D) -> Result<T, D::Error>
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where
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D: Deserializer<'a>,
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T: Deserialize<'a> + Default,
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{
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Ok(T::deserialize(Value::deserialize(deserializer)?).unwrap_or_else(fallback_default))
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}
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pub fn option_explicit_none<'de, T, D>(deserializer: D) -> Result<Option<T>, D::Error>
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where
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D: Deserializer<'de>,
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T: Deserialize<'de> + Default,
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{
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Ok(match Value::deserialize(deserializer)? {
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Value::String(ref value) if value.to_lowercase() == "none" => None,
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value => Some(T::deserialize(value).unwrap_or_else(fallback_default)),
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})
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}
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pub fn from_string_or_deserialize<'de, T, D>(deserializer: D) -> Result<T, D::Error>
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where
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D: Deserializer<'de>,
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T: Deserialize<'de> + FromString + Default,
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{
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Ok(match Value::deserialize(deserializer)? {
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Value::String(value) => T::from(value),
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value => T::deserialize(value).unwrap_or_else(fallback_default),
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})
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}
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// Used over From<String>, to allow implementation for foreign types
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pub trait FromString {
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fn from(input: String) -> Self;
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}
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