193b00764b
* Moves off of draining between filters. Instead, the sink will pull on the stream, and will drain element-wise. This moves the whole stream to being lazy. * Adds ctrl-c support and connects it into some of the key points where we pull on the stream. If a ctrl-c is detect, we immediately halt pulling on the stream and return to the prompt. * Moves away from having a SourceMap where anchor locations are stored. Now AnchorLocation is kept directly in the Tag. * To make this possible, split tag and span. Span is largely used in the parser and is copyable. Tag is now no longer copyable.
86 lines
2.4 KiB
Rust
86 lines
2.4 KiB
Rust
use crate::commands::WholeStreamCommand;
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use crate::data::{Primitive, TaggedDictBuilder, Value};
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use crate::prelude::*;
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pub struct FromURL;
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impl WholeStreamCommand for FromURL {
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fn name(&self) -> &str {
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"from-url"
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}
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fn signature(&self) -> Signature {
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Signature::build("from-url")
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}
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fn usage(&self) -> &str {
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"Parse url-encoded string as a table."
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}
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fn run(
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&self,
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args: CommandArgs,
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registry: &CommandRegistry,
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) -> Result<OutputStream, ShellError> {
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from_url(args, registry)
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}
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}
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fn from_url(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
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let args = args.evaluate_once(registry)?;
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let tag = args.name_tag();
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let input = args.input;
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let stream = async_stream! {
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let values: Vec<Tagged<Value>> = input.values.collect().await;
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let mut concat_string = String::new();
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let mut latest_tag: Option<Tag> = None;
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for value in values {
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let value_tag = value.tag();
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latest_tag = Some(value_tag.clone());
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match value.item {
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Value::Primitive(Primitive::String(s)) => {
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concat_string.push_str(&s);
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}
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_ => yield Err(ShellError::labeled_error_with_secondary(
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"Expected a string from pipeline",
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"requires string input",
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&tag,
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"value originates from here",
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&value_tag,
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)),
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}
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}
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let result = serde_urlencoded::from_str::<Vec<(String, String)>>(&concat_string);
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match result {
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Ok(result) => {
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let mut row = TaggedDictBuilder::new(tag);
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for (k,v) in result {
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row.insert(k, Value::string(v));
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}
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yield ReturnSuccess::value(row.into_tagged_value());
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}
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_ => {
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if let Some(last_tag) = latest_tag {
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yield Err(ShellError::labeled_error_with_secondary(
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"String not compatible with url-encoding",
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"input not url-encoded",
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tag,
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"value originates from here",
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last_tag,
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));
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}
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}
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}
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};
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Ok(stream.to_output_stream())
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}
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