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prompt with env variable
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@ -1,9 +1,11 @@
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mod completions;
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mod errors;
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mod prompt;
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mod syntax_highlight;
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mod validation;
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pub use completions::NuCompleter;
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pub use errors::report_error;
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pub use prompt::NushellPrompt;
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pub use syntax_highlight::NuHighlighter;
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pub use validation::NuValidator;
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90
crates/nu-cli/src/prompt.rs
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90
crates/nu-cli/src/prompt.rs
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@ -0,0 +1,90 @@
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use {
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reedline::{
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Prompt, PromptEditMode, PromptHistorySearch, PromptHistorySearchStatus, PromptViMode,
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},
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std::borrow::Cow,
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};
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/// Nushell prompt definition
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#[derive(Clone)]
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pub struct NushellPrompt {
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prompt_command: String,
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prompt_string: String,
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// These are part of the struct definition in case we want to later allow
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// further customization to the shell status
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default_prompt_indicator: String,
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default_vi_insert_prompt_indicator: String,
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default_vi_visual_prompt_indicator: String,
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default_multiline_indicator: String,
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}
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impl Default for NushellPrompt {
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fn default() -> Self {
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NushellPrompt::new()
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}
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}
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impl NushellPrompt {
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/// Constructor for the default prompt, which takes the amount of spaces required between the left and right-hand sides of the prompt
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pub fn new() -> NushellPrompt {
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NushellPrompt {
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prompt_command: "".to_string(),
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prompt_string: "".to_string(),
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default_prompt_indicator: "〉".to_string(),
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default_vi_insert_prompt_indicator: ": ".to_string(),
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default_vi_visual_prompt_indicator: "v ".to_string(),
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default_multiline_indicator: "::: ".to_string(),
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}
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}
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pub fn is_new_prompt(&self, prompt_command: &str) -> bool {
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self.prompt_command != prompt_command
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}
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pub fn update_prompt(&mut self, prompt_command: String, prompt_string: String) {
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self.prompt_command = prompt_command;
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self.prompt_string = prompt_string;
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}
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fn default_wrapped_custom_string(&self, str: String) -> String {
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format!("({})", str)
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}
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}
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impl Prompt for NushellPrompt {
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fn render_prompt(&self, _: usize) -> Cow<str> {
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self.prompt_string.as_str().into()
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}
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fn render_prompt_indicator(&self, edit_mode: PromptEditMode) -> Cow<str> {
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match edit_mode {
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PromptEditMode::Default => self.default_prompt_indicator.as_str().into(),
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PromptEditMode::Emacs => self.default_prompt_indicator.as_str().into(),
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PromptEditMode::Vi(vi_mode) => match vi_mode {
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PromptViMode::Normal => self.default_prompt_indicator.as_str().into(),
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PromptViMode::Insert => self.default_vi_insert_prompt_indicator.as_str().into(),
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PromptViMode::Visual => self.default_vi_visual_prompt_indicator.as_str().into(),
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},
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PromptEditMode::Custom(str) => self.default_wrapped_custom_string(str).into(),
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}
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}
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fn render_prompt_multiline_indicator(&self) -> Cow<str> {
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Cow::Borrowed(self.default_multiline_indicator.as_str())
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}
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fn render_prompt_history_search_indicator(
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&self,
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history_search: PromptHistorySearch,
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) -> Cow<str> {
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let prefix = match history_search.status {
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PromptHistorySearchStatus::Passing => "",
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PromptHistorySearchStatus::Failing => "failing ",
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};
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Cow::Owned(format!(
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"({}reverse-search: {})",
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prefix, history_search.term
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))
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}
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}
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@ -112,6 +112,10 @@ impl Stack {
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self.0.borrow().env_vars.clone()
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}
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pub fn get_env_var(&self, name: &str) -> Option<String> {
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self.0.borrow().env_vars.get(name).cloned()
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}
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pub fn print_stack(&self) {
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println!("===frame===");
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println!("vars:");
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