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author | Valentin Popov <valentin@popov.link> | 2024-07-19 15:37:58 +0300 |
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committer | Valentin Popov <valentin@popov.link> | 2024-07-19 15:37:58 +0300 |
commit | a990de90fe41456a23e58bd087d2f107d321f3a1 (patch) | |
tree | 15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/dialoguer/src/prompts/input.rs | |
parent | 3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff) | |
download | fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip |
Deleted vendor folder
Diffstat (limited to 'vendor/dialoguer/src/prompts/input.rs')
-rw-r--r-- | vendor/dialoguer/src/prompts/input.rs | 691 |
1 files changed, 0 insertions, 691 deletions
diff --git a/vendor/dialoguer/src/prompts/input.rs b/vendor/dialoguer/src/prompts/input.rs deleted file mode 100644 index b7cd829..0000000 --- a/vendor/dialoguer/src/prompts/input.rs +++ /dev/null @@ -1,691 +0,0 @@ -use std::{cmp::Ordering, fmt::Debug, io, iter, str::FromStr}; - -#[cfg(feature = "completion")] -use crate::completion::Completion; -#[cfg(feature = "history")] -use crate::history::History; -use crate::{ - theme::{SimpleTheme, TermThemeRenderer, Theme}, - validate::Validator, -}; - -use console::{Key, Term}; - -type ValidatorCallback<'a, T> = Box<dyn FnMut(&T) -> Option<String> + 'a>; - -/// Renders an input prompt. -/// -/// ## Example usage -/// -/// ```rust,no_run -/// use dialoguer::Input; -/// -/// # fn test() -> Result<(), Box<dyn std::error::Error>> { -/// let input : String = Input::new() -/// .with_prompt("Tea or coffee?") -/// .with_initial_text("Yes") -/// .default("No".into()) -/// .interact_text()?; -/// # Ok(()) -/// # } -/// ``` -/// It can also be used with turbofish notation: -/// -/// ```rust,no_run -/// # fn test() -> Result<(), Box<dyn std::error::Error>> { -/// # use dialoguer::Input; -/// let input = Input::<String>::new() -/// .interact_text()?; -/// # Ok(()) -/// # } -/// ``` -pub struct Input<'a, T> { - prompt: String, - post_completion_text: Option<String>, - report: bool, - default: Option<T>, - show_default: bool, - initial_text: Option<String>, - theme: &'a dyn Theme, - permit_empty: bool, - validator: Option<ValidatorCallback<'a, T>>, - #[cfg(feature = "history")] - history: Option<&'a mut dyn History<T>>, - #[cfg(feature = "completion")] - completion: Option<&'a dyn Completion>, -} - -impl<T> Default for Input<'static, T> { - fn default() -> Self { - Self::new() - } -} - -impl<T> Input<'_, T> { - /// Creates an input prompt. - pub fn new() -> Self { - Self::with_theme(&SimpleTheme) - } - - /// Sets the input prompt. - pub fn with_prompt<S: Into<String>>(&mut self, prompt: S) -> &mut Self { - self.prompt = prompt.into(); - self - } - - /// Changes the prompt text to the post completion text after input is complete - pub fn with_post_completion_text<S: Into<String>>( - &mut self, - post_completion_text: S, - ) -> &mut Self { - self.post_completion_text = Some(post_completion_text.into()); - self - } - - /// Indicates whether to report the input value after interaction. - /// - /// The default is to report the input value. - pub fn report(&mut self, val: bool) -> &mut Self { - self.report = val; - self - } - - /// Sets initial text that user can accept or erase. - pub fn with_initial_text<S: Into<String>>(&mut self, val: S) -> &mut Self { - self.initial_text = Some(val.into()); - self - } - - /// Sets a default. - /// - /// Out of the box the prompt does not have a default and will continue - /// to display until the user inputs something and hits enter. If a default is set the user - /// can instead accept the default with enter. - pub fn default(&mut self, value: T) -> &mut Self { - self.default = Some(value); - self - } - - /// Enables or disables an empty input - /// - /// By default, if there is no default value set for the input, the user must input a non-empty string. - pub fn allow_empty(&mut self, val: bool) -> &mut Self { - self.permit_empty = val; - self - } - - /// Disables or enables the default value display. - /// - /// The default behaviour is to append [`default`](#method.default) to the prompt to tell the - /// user what is the default value. - /// - /// This method does not affect existence of default value, only its display in the prompt! - pub fn show_default(&mut self, val: bool) -> &mut Self { - self.show_default = val; - self - } -} - -impl<'a, T> Input<'a, T> { - /// Creates an input prompt with a specific theme. - pub fn with_theme(theme: &'a dyn Theme) -> Self { - Self { - prompt: "".into(), - post_completion_text: None, - report: true, - default: None, - show_default: true, - initial_text: None, - theme, - permit_empty: false, - validator: None, - #[cfg(feature = "history")] - history: None, - #[cfg(feature = "completion")] - completion: None, - } - } - - /// Enable history processing - /// - /// # Example - /// - /// ```no_run - /// # use dialoguer::{History, Input}; - /// # use std::{collections::VecDeque, fmt::Display}; - /// let mut history = MyHistory::default(); - /// loop { - /// if let Ok(input) = Input::<String>::new() - /// .with_prompt("hist") - /// .history_with(&mut history) - /// .interact_text() - /// { - /// // Do something with the input - /// } - /// } - /// # struct MyHistory { - /// # history: VecDeque<String>, - /// # } - /// # - /// # impl Default for MyHistory { - /// # fn default() -> Self { - /// # MyHistory { - /// # history: VecDeque::new(), - /// # } - /// # } - /// # } - /// # - /// # impl<T: ToString> History<T> for MyHistory { - /// # fn read(&self, pos: usize) -> Option<String> { - /// # self.history.get(pos).cloned() - /// # } - /// # - /// # fn write(&mut self, val: &T) - /// # where - /// # { - /// # self.history.push_front(val.to_string()); - /// # } - /// # } - /// ``` - #[cfg(feature = "history")] - pub fn history_with<H>(&mut self, history: &'a mut H) -> &mut Self - where - H: History<T>, - { - self.history = Some(history); - self - } - - /// Enable completion - #[cfg(feature = "completion")] - pub fn completion_with<C>(&mut self, completion: &'a C) -> &mut Self - where - C: Completion, - { - self.completion = Some(completion); - self - } -} - -impl<'a, T> Input<'a, T> -where - T: 'a, -{ - /// Registers a validator. - /// - /// # Example - /// - /// ```no_run - /// # use dialoguer::Input; - /// let mail: String = Input::new() - /// .with_prompt("Enter email") - /// .validate_with(|input: &String| -> Result<(), &str> { - /// if input.contains('@') { - /// Ok(()) - /// } else { - /// Err("This is not a mail address") - /// } - /// }) - /// .interact() - /// .unwrap(); - /// ``` - pub fn validate_with<V>(&mut self, mut validator: V) -> &mut Self - where - V: Validator<T> + 'a, - V::Err: ToString, - { - let mut old_validator_func = self.validator.take(); - - self.validator = Some(Box::new(move |value: &T| -> Option<String> { - if let Some(old) = old_validator_func.as_mut() { - if let Some(err) = old(value) { - return Some(err); - } - } - - match validator.validate(value) { - Ok(()) => None, - Err(err) => Some(err.to_string()), - } - })); - - self - } -} - -impl<T> Input<'_, T> -where - T: Clone + ToString + FromStr, - <T as FromStr>::Err: Debug + ToString, -{ - /// Enables the user to enter a printable ascii sequence and returns the result. - /// - /// Its difference from [`interact`](#method.interact) is that it only allows ascii characters for string, - /// while [`interact`](#method.interact) allows virtually any character to be used e.g arrow keys. - /// - /// The dialog is rendered on stderr. - pub fn interact_text(&mut self) -> io::Result<T> { - self.interact_text_on(&Term::stderr()) - } - - /// Like [`interact_text`](#method.interact_text) but allows a specific terminal to be set. - pub fn interact_text_on(&mut self, term: &Term) -> io::Result<T> { - let mut render = TermThemeRenderer::new(term, self.theme); - - loop { - let default_string = self.default.as_ref().map(ToString::to_string); - - let prompt_len = render.input_prompt( - &self.prompt, - if self.show_default { - default_string.as_deref() - } else { - None - }, - )?; - - // Read input by keystroke so that we can suppress ascii control characters - if !term.features().is_attended() { - return Ok("".to_owned().parse::<T>().unwrap()); - } - - let mut chars: Vec<char> = Vec::new(); - let mut position = 0; - #[cfg(feature = "history")] - let mut hist_pos = 0; - - if let Some(initial) = self.initial_text.as_ref() { - term.write_str(initial)?; - chars = initial.chars().collect(); - position = chars.len(); - } - term.flush()?; - - loop { - match term.read_key()? { - Key::Backspace if position > 0 => { - position -= 1; - chars.remove(position); - let line_size = term.size().1 as usize; - // Case we want to delete last char of a line so the cursor is at the beginning of the next line - if (position + prompt_len) % (line_size - 1) == 0 { - term.clear_line()?; - term.move_cursor_up(1)?; - term.move_cursor_right(line_size + 1)?; - } else { - term.clear_chars(1)?; - } - - let tail: String = chars[position..].iter().collect(); - - if !tail.is_empty() { - term.write_str(&tail)?; - - let total = position + prompt_len + tail.len(); - let total_line = total / line_size; - let line_cursor = (position + prompt_len) / line_size; - term.move_cursor_up(total_line - line_cursor)?; - - term.move_cursor_left(line_size)?; - term.move_cursor_right((position + prompt_len) % line_size)?; - } - - term.flush()?; - } - Key::Char(chr) if !chr.is_ascii_control() => { - chars.insert(position, chr); - position += 1; - let tail: String = - iter::once(&chr).chain(chars[position..].iter()).collect(); - term.write_str(&tail)?; - term.move_cursor_left(tail.len() - 1)?; - term.flush()?; - } - Key::ArrowLeft if position > 0 => { - if (position + prompt_len) % term.size().1 as usize == 0 { - term.move_cursor_up(1)?; - term.move_cursor_right(term.size().1 as usize)?; - } else { - term.move_cursor_left(1)?; - } - position -= 1; - term.flush()?; - } - Key::ArrowRight if position < chars.len() => { - if (position + prompt_len) % (term.size().1 as usize - 1) == 0 { - term.move_cursor_down(1)?; - term.move_cursor_left(term.size().1 as usize)?; - } else { - term.move_cursor_right(1)?; - } - position += 1; - term.flush()?; - } - Key::UnknownEscSeq(seq) if seq == vec!['b'] => { - let line_size = term.size().1 as usize; - let nb_space = chars[..position] - .iter() - .rev() - .take_while(|c| c.is_whitespace()) - .count(); - let find_last_space = chars[..position - nb_space] - .iter() - .rposition(|c| c.is_whitespace()); - - // If we find a space we set the cursor to the next char else we set it to the beginning of the input - if let Some(mut last_space) = find_last_space { - if last_space < position { - last_space += 1; - let new_line = (prompt_len + last_space) / line_size; - let old_line = (prompt_len + position) / line_size; - let diff_line = old_line - new_line; - if diff_line != 0 { - term.move_cursor_up(old_line - new_line)?; - } - - let new_pos_x = (prompt_len + last_space) % line_size; - let old_pos_x = (prompt_len + position) % line_size; - let diff_pos_x = new_pos_x as i64 - old_pos_x as i64; - //println!("new_pos_x = {}, old_pos_x = {}, diff = {}", new_pos_x, old_pos_x, diff_pos_x); - if diff_pos_x < 0 { - term.move_cursor_left(-diff_pos_x as usize)?; - } else { - term.move_cursor_right((diff_pos_x) as usize)?; - } - position = last_space; - } - } else { - term.move_cursor_left(position)?; - position = 0; - } - - term.flush()?; - } - Key::UnknownEscSeq(seq) if seq == vec!['f'] => { - let line_size = term.size().1 as usize; - let find_next_space = - chars[position..].iter().position(|c| c.is_whitespace()); - - // If we find a space we set the cursor to the next char else we set it to the beginning of the input - if let Some(mut next_space) = find_next_space { - let nb_space = chars[position + next_space..] - .iter() - .take_while(|c| c.is_whitespace()) - .count(); - next_space += nb_space; - let new_line = (prompt_len + position + next_space) / line_size; - let old_line = (prompt_len + position) / line_size; - term.move_cursor_down(new_line - old_line)?; - - let new_pos_x = (prompt_len + position + next_space) % line_size; - let old_pos_x = (prompt_len + position) % line_size; - let diff_pos_x = new_pos_x as i64 - old_pos_x as i64; - if diff_pos_x < 0 { - term.move_cursor_left(-diff_pos_x as usize)?; - } else { - term.move_cursor_right((diff_pos_x) as usize)?; - } - position += next_space; - } else { - let new_line = (prompt_len + chars.len()) / line_size; - let old_line = (prompt_len + position) / line_size; - term.move_cursor_down(new_line - old_line)?; - - let new_pos_x = (prompt_len + chars.len()) % line_size; - let old_pos_x = (prompt_len + position) % line_size; - let diff_pos_x = new_pos_x as i64 - old_pos_x as i64; - match diff_pos_x.cmp(&0) { - Ordering::Less => { - term.move_cursor_left((-diff_pos_x - 1) as usize)?; - } - Ordering::Equal => {} - Ordering::Greater => { - term.move_cursor_right((diff_pos_x) as usize)?; - } - } - position = chars.len(); - } - - term.flush()?; - } - #[cfg(feature = "completion")] - Key::ArrowRight | Key::Tab => { - if let Some(completion) = &self.completion { - let input: String = chars.clone().into_iter().collect(); - if let Some(x) = completion.get(&input) { - term.clear_chars(chars.len())?; - chars.clear(); - position = 0; - for ch in x.chars() { - chars.insert(position, ch); - position += 1; - } - term.write_str(&x)?; - term.flush()?; - } - } - } - #[cfg(feature = "history")] - Key::ArrowUp => { - let line_size = term.size().1 as usize; - if let Some(history) = &self.history { - if let Some(previous) = history.read(hist_pos) { - hist_pos += 1; - let mut chars_len = chars.len(); - while ((prompt_len + chars_len) / line_size) > 0 { - term.clear_chars(chars_len)?; - if (prompt_len + chars_len) % line_size == 0 { - chars_len -= std::cmp::min(chars_len, line_size); - } else { - chars_len -= std::cmp::min( - chars_len, - (prompt_len + chars_len + 1) % line_size, - ); - } - if chars_len > 0 { - term.move_cursor_up(1)?; - term.move_cursor_right(line_size)?; - } - } - term.clear_chars(chars_len)?; - chars.clear(); - position = 0; - for ch in previous.chars() { - chars.insert(position, ch); - position += 1; - } - term.write_str(&previous)?; - term.flush()?; - } - } - } - #[cfg(feature = "history")] - Key::ArrowDown => { - let line_size = term.size().1 as usize; - if let Some(history) = &self.history { - let mut chars_len = chars.len(); - while ((prompt_len + chars_len) / line_size) > 0 { - term.clear_chars(chars_len)?; - if (prompt_len + chars_len) % line_size == 0 { - chars_len -= std::cmp::min(chars_len, line_size); - } else { - chars_len -= std::cmp::min( - chars_len, - (prompt_len + chars_len + 1) % line_size, - ); - } - if chars_len > 0 { - term.move_cursor_up(1)?; - term.move_cursor_right(line_size)?; - } - } - term.clear_chars(chars_len)?; - chars.clear(); - position = 0; - // Move the history position back one in case we have up arrowed into it - // and the position is sitting on the next to read - if let Some(pos) = hist_pos.checked_sub(1) { - hist_pos = pos; - // Move it back again to get the previous history entry - if let Some(pos) = pos.checked_sub(1) { - if let Some(previous) = history.read(pos) { - for ch in previous.chars() { - chars.insert(position, ch); - position += 1; - } - term.write_str(&previous)?; - } - } - } - term.flush()?; - } - } - Key::Enter => break, - _ => (), - } - } - let input = chars.iter().collect::<String>(); - - term.clear_line()?; - render.clear()?; - - if chars.is_empty() { - if let Some(ref default) = self.default { - if let Some(ref mut validator) = self.validator { - if let Some(err) = validator(default) { - render.error(&err)?; - continue; - } - } - - if self.report { - render.input_prompt_selection(&self.prompt, &default.to_string())?; - } - term.flush()?; - return Ok(default.clone()); - } else if !self.permit_empty { - continue; - } - } - - match input.parse::<T>() { - Ok(value) => { - if let Some(ref mut validator) = self.validator { - if let Some(err) = validator(&value) { - render.error(&err)?; - continue; - } - } - - #[cfg(feature = "history")] - if let Some(history) = &mut self.history { - history.write(&value); - } - - if self.report { - if let Some(post_completion_text) = &self.post_completion_text { - render.input_prompt_selection(post_completion_text, &input)?; - } else { - render.input_prompt_selection(&self.prompt, &input)?; - } - } - term.flush()?; - - return Ok(value); - } - Err(err) => { - render.error(&err.to_string())?; - continue; - } - } - } - } -} - -impl<T> Input<'_, T> -where - T: Clone + ToString + FromStr, - <T as FromStr>::Err: ToString, -{ - /// Enables user interaction and returns the result. - /// - /// Allows any characters as input, including e.g arrow keys. - /// Some of the keys might have undesired behavior. - /// For more limited version, see [`interact_text`](#method.interact_text). - /// - /// If the user confirms the result is `true`, `false` otherwise. - /// The dialog is rendered on stderr. - pub fn interact(&mut self) -> io::Result<T> { - self.interact_on(&Term::stderr()) - } - - /// Like [`interact`](#method.interact) but allows a specific terminal to be set. - pub fn interact_on(&mut self, term: &Term) -> io::Result<T> { - let mut render = TermThemeRenderer::new(term, self.theme); - - loop { - let default_string = self.default.as_ref().map(ToString::to_string); - - render.input_prompt( - &self.prompt, - if self.show_default { - default_string.as_deref() - } else { - None - }, - )?; - term.flush()?; - - let input = if let Some(initial_text) = self.initial_text.as_ref() { - term.read_line_initial_text(initial_text)? - } else { - term.read_line()? - }; - - render.add_line(); - term.clear_line()?; - render.clear()?; - - if input.is_empty() { - if let Some(ref default) = self.default { - if let Some(ref mut validator) = self.validator { - if let Some(err) = validator(default) { - render.error(&err)?; - continue; - } - } - - if self.report { - render.input_prompt_selection(&self.prompt, &default.to_string())?; - } - term.flush()?; - return Ok(default.clone()); - } else if !self.permit_empty { - continue; - } - } - - match input.parse::<T>() { - Ok(value) => { - if let Some(ref mut validator) = self.validator { - if let Some(err) = validator(&value) { - render.error(&err)?; - continue; - } - } - - if self.report { - render.input_prompt_selection(&self.prompt, &input)?; - } - term.flush()?; - - return Ok(value); - } - Err(err) => { - render.error(&err.to_string())?; - continue; - } - } - } - } -} |