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Support multiple attributes #69

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dfc69eb
Support multiple attributes
dogancelik Sep 11, 2023
02c4e36
End line with newline if value is none
dogancelik Oct 3, 2023
c3e74c0
Check for next attribute
dogancelik Oct 3, 2023
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37 changes: 31 additions & 6 deletions src/main.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@ struct Config {
pretty_print: bool,
remove_nodes: Option<Vec<String>>,
attributes: Option<Vec<String>>,
attribute_separator: String,
}

impl Config {
Expand Down Expand Up @@ -58,6 +59,7 @@ impl Config {
pretty_print: matches.is_present("pretty_print"),
remove_nodes,
attributes,
attribute_separator: matches.value_of("attribute_separator").unwrap_or(" ").to_string(),
selector,
})
}
Expand All @@ -76,16 +78,28 @@ impl Default for Config {
text_only: false,
remove_nodes: None,
attributes: Some(vec![]),
attribute_separator: " ".to_string(),
}
}
}

fn select_attributes(node: &NodeRef, attributes: &[String], output: &mut dyn io::Write) {
fn select_attributes(node: &NodeRef, attributes: &Vec<String>, attribute_separator: &String, output: &mut dyn io::Write) {
if let Some(as_element) = node.as_element() {
for attr in attributes {
let mut it = attributes.iter().peekable();
while let Some(attr) = it.next() {
if let Ok(elem_atts) = as_element.attributes.try_borrow() {
if let Some(val) = elem_atts.get(attr.as_str()) {
writeln!(output, "{}", val).ok();
if it.peek().is_some() {
write!(output, "{}{}", val, attribute_separator).ok();
} else {
writeln!(output, "{}", val).ok();
}
} else {
if it.peek().is_some() {
write!(output, "{}{}", "", attribute_separator).ok();
} else {
writeln!(output, "{}", "").ok();
}
}
}
}
Expand Down Expand Up @@ -152,8 +166,19 @@ fn get_config<'a, 'b>() -> App<'a, 'b> {
Arg::with_name("attribute")
.short("a")
.long("attribute")
.multiple(true)
.number_of_values(1)
.takes_value(true)
.value_name("ATTRIBUTE")
.help("Only return this attribute (if present) from selected elements. May be specified multiple times"),
)
.arg(
Arg::with_name("attribute_separator")
.short("s")
.long("attribute-separator")
.takes_value(true)
.help("Only return this attribute (if present) from selected elements"),
.value_name("SEPARATOR")
.help("The separator to use when printing attributes. Defaults to a space"),
)
.arg(
Arg::with_name("base")
Expand Down Expand Up @@ -236,8 +261,8 @@ fn main() -> Result<(), Box<dyn Error>> {
.for_each(|matched_noderef| {
let node = matched_noderef.as_node();

if let Some(attributes) = &config.attributes {
select_attributes(node, attributes, &mut output);
if let Some(attributes) = config.attributes.as_ref() {
select_attributes(node, attributes, &config.attribute_separator, &mut output);
return;
}

Expand Down