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enable find to be able to highlight some hits (#6086)

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* enable find to be able to highlight some hits

* oops, deps in the wrong place
This commit is contained in:
Darren Schroeder 2022-07-20 10:09:33 -05:00 committed by GitHub
parent a35a71fd82
commit db9b88089e
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GPG key ID: 4AEE18F83AFDEB23
9 changed files with 219 additions and 74 deletions
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1
Cargo.lock generated
View file

@ -2806,6 +2806,7 @@ name = "nu-utils"
version = "0.65.1"
dependencies = [
"crossterm_winapi",
"lscolors",
]
[[package]]

2
crates/nu-command/src/core_commands/help.rs
View file

@ -344,7 +344,7 @@ You can also learn more at https://www.nushell.sh/book/"#;
}
// Highlight the search string using ANSI escape sequences and regular expressions.
fn highlight_search_string(
pub fn highlight_search_string(
haystack: &str,
needle: &str,
string_style: &Style,

2
crates/nu-command/src/core_commands/mod.rs
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@ -14,7 +14,7 @@ mod export_env;
mod export_extern;
mod extern_;
mod for_;
mod help;
pub mod help;
mod hide;
mod if_;
mod ignore;

249
crates/nu-command/src/filters/find.rs
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@ -1,10 +1,15 @@
use nu_engine::{eval_block, CallExt};
use crate::help::highlight_search_string;
use lscolors::Style as LsColors_Style;
use nu_ansi_term::{Color::Default, Style};
use nu_color_config::get_color_config;
use nu_engine::{env_to_string, eval_block, CallExt};
use nu_protocol::{
ast::Call,
engine::{CaptureBlock, Command, EngineState, Stack},
Category, Example, IntoInterruptiblePipelineData, PipelineData, ShellError, Signature, Span,
SyntaxShape, Value,
Category, Example, IntoInterruptiblePipelineData, ListStream, PipelineData, ShellError,
Signature, Span, SyntaxShape, Value,
};
use nu_utils::get_ls_colors;
use regex::Regex;
#[derive(Clone)]
@ -149,7 +154,7 @@ impl Command for Find {
find_with_predicate(predicate, engine_state, stack, call, input)
}
(Some(regex), None) => find_with_regex(regex, engine_state, stack, call, input),
(None, None) => find_with_rest(engine_state, stack, call, input),
(None, None) => find_with_rest_and_highlight(engine_state, stack, call, input),
(Some(_), Some(_)) => Err(ShellError::IncompatibleParametersSingle(
"expected either predicate or regex flag, not both".to_owned(),
call.head,
@ -265,7 +270,7 @@ fn find_with_predicate(
)
}
fn find_with_rest(
fn find_with_rest_and_highlight(
engine_state: &EngineState,
stack: &mut Stack,
call: &Call,
@ -273,11 +278,10 @@ fn find_with_rest(
) -> Result<PipelineData, ShellError> {
let span = call.head;
let ctrlc = engine_state.ctrlc.clone();
let metadata = input.metadata();
let engine_state = engine_state.clone();
let config = engine_state.get_config().clone();
let filter_config = engine_state.get_config().clone();
let invert = call.has_flag("invert");
let terms = call.rest::<Value>(&engine_state, stack, 0)?;
let lower_terms = terms
.iter()
@ -290,56 +294,193 @@ fn find_with_rest(
})
.collect::<Vec<Value>>();
let pipe = input.filter(
move |value| {
let lower_value = if let Ok(span) = value.span() {
Value::string(value.into_string("", &config).to_lowercase(), span)
} else {
value.clone()
};
let color_hm = get_color_config(&config);
let default_style = Style::new().fg(Default).on(Default);
let string_style = match color_hm.get("string") {
Some(style) => *style,
None => default_style,
};
let ls_colors_env_str = match stack.get_env_var(&engine_state, "LS_COLORS") {
Some(v) => Some(env_to_string("LS_COLORS", &v, &engine_state, stack)?),
None => None,
};
let ls_colors = get_ls_colors(ls_colors_env_str);
lower_terms.iter().any(|term| match value {
Value::Bool { .. }
| Value::Int { .. }
| Value::Filesize { .. }
| Value::Duration { .. }
| Value::Date { .. }
| Value::Range { .. }
| Value::Float { .. }
| Value::Block { .. }
| Value::Nothing { .. }
| Value::Error { .. } => lower_value
.eq(span, term, span)
.map_or(false, |value| value.is_true()),
Value::String { .. }
| Value::List { .. }
| Value::CellPath { .. }
| Value::CustomValue { .. } => term
.r#in(span, &lower_value, span)
.map_or(false, |value| value.is_true()),
Value::Record { vals, .. } => vals.iter().any(|val| {
if let Ok(span) = val.span() {
let lower_val = Value::string(
val.into_string("", &config).to_lowercase(),
Span::test_data(),
);
match input {
PipelineData::Value(_, _) => input.filter(
move |value| {
let lower_value = if let Ok(span) = value.span() {
Value::string(value.into_string("", &config).to_lowercase(), span)
} else {
value.clone()
};
term.r#in(span, &lower_val, span)
.map_or(false, |value| value.is_true())
} else {
term.r#in(span, val, span)
.map_or(false, |value| value.is_true())
}
}),
Value::Binary { .. } => false,
}) != invert
},
ctrlc,
)?;
lower_terms.iter().any(|term| match value {
Value::Bool { .. }
| Value::Int { .. }
| Value::Filesize { .. }
| Value::Duration { .. }
| Value::Date { .. }
| Value::Range { .. }
| Value::Float { .. }
| Value::Block { .. }
| Value::Nothing { .. }
| Value::Error { .. } => lower_value
.eq(span, term, span)
.map_or(false, |val| val.is_true()),
Value::String { .. }
| Value::List { .. }
| Value::CellPath { .. }
| Value::CustomValue { .. } => term
.r#in(span, &lower_value, span)
.map_or(false, |val| val.is_true()),
Value::Record { vals, .. } => vals.iter().any(|val| {
if let Ok(span) = val.span() {
let lower_val = Value::string(
val.into_string("", &config).to_lowercase(),
Span::test_data(),
);
match metadata {
Some(m) => Ok(pipe.into_pipeline_data_with_metadata(m, engine_state.ctrlc.clone())),
None => Ok(pipe),
term.r#in(span, &lower_val, span)
.map_or(false, |aval| aval.is_true())
} else {
term.r#in(span, val, span)
.map_or(false, |aval| aval.is_true())
}
}),
Value::Binary { .. } => false,
}) != invert
},
ctrlc,
),
PipelineData::ListStream(stream, meta) => {
Ok(ListStream::from_stream(
stream
.map(move |mut x| match &mut x {
Value::Record { cols, vals, span } => {
let mut output = vec![];
for val in vals {
let val_str = val.into_string("", &config);
let lower_val = val.into_string("", &config).to_lowercase();
let mut term_added_to_output = false;
for term in terms.clone() {
let term_str = term.into_string("", &config);
let lower_term = term.into_string("", &config).to_lowercase();
if lower_val.contains(&lower_term) {
if config.use_ls_colors {
// Get the original LS_COLORS color
let style = ls_colors.style_for_path(val_str.clone());
let ansi_style = style
.map(LsColors_Style::to_crossterm_style)
.unwrap_or_default();
let ls_colored_val =
ansi_style.apply(&val_str).to_string();
let hi = match highlight_search_string(
&ls_colored_val,
&term_str,
&string_style,
) {
Ok(hi) => hi,
Err(_) => string_style
.paint(term_str.to_string())
.to_string(),
};
output.push(Value::String {
val: hi,
span: *span,
});
term_added_to_output = true;
} else {
// No LS_COLORS support, so just use the original value
let hi = match highlight_search_string(
&val_str,
&term_str,
&string_style,
) {
Ok(hi) => hi,
Err(_) => string_style
.paint(term_str.to_string())
.to_string(),
};
output.push(Value::String {
val: hi,
span: *span,
});
}
}
}
if !term_added_to_output {
output.push(val.clone());
}
}
Value::Record {
cols: cols.to_vec(),
vals: output,
span: *span,
}
}
_ => x,
})
.filter(move |value| {
let lower_value = if let Ok(span) = value.span() {
Value::string(
value.into_string("", &filter_config).to_lowercase(),
span,
)
} else {
value.clone()
};
lower_terms.iter().any(|term| match value {
Value::Bool { .. }
| Value::Int { .. }
| Value::Filesize { .. }
| Value::Duration { .. }
| Value::Date { .. }
| Value::Range { .. }
| Value::Float { .. }
| Value::Block { .. }
| Value::Nothing { .. }
| Value::Error { .. } => lower_value
.eq(span, term, span)
.map_or(false, |value| value.is_true()),
Value::String { .. }
| Value::List { .. }
| Value::CellPath { .. }
| Value::CustomValue { .. } => term
.r#in(span, &lower_value, span)
.map_or(false, |value| value.is_true()),
Value::Record { vals, .. } => vals.iter().any(|val| {
if let Ok(span) = val.span() {
let lower_val = Value::string(
val.into_string("", &filter_config).to_lowercase(),
Span::test_data(),
);
term.r#in(span, &lower_val, span)
.map_or(false, |value| value.is_true())
} else {
term.r#in(span, val, span)
.map_or(false, |value| value.is_true())
}
}),
Value::Binary { .. } => false,
}) != invert
}),
ctrlc.clone(),
)
.into_pipeline_data(ctrlc)
.set_metadata(meta))
}
// PipelineData::ExternalStream {
// stdout,
// stderr,
// exit_code,
// span,
// metadata,
// } => todo!(),
_ => todo!(), // not sure what to do here
}
}

8
crates/nu-command/src/viewers/griddle.rs
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18
crates/nu-command/src/viewers/table.rs
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1
crates/nu-utils/Cargo.toml
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@ -12,6 +12,7 @@ name = "utils"
path = "src/main.rs"
[dependencies]
lscolors = { version = "0.10.0", features = ["crossterm"]}
[target.'cfg(windows)'.dependencies]
crossterm_winapi = "0.9.0"

4
crates/nu-utils/src/lib.rs
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@ -1,3 +1,5 @@
pub mod utils;
pub use utils::{enable_vt_processing, stderr_write_all_and_flush, stdout_write_all_and_flush};
pub use utils::{
enable_vt_processing, get_ls_colors, stderr_write_all_and_flush, stdout_write_all_and_flush,
};

8
crates/nu-utils/src/utils.rs
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