Another refactoring in links.rs (#1001)
* Extract the concept of a link having a range or anchor specified So that other kinds of links can use this concept too. * Extract a function for parsing range or anchor
This commit is contained in:
parent
33d7e86fb6
commit
ce0c5f1d07
|
@ -102,11 +102,16 @@ where
|
|||
#[derive(PartialEq, Debug, Clone)]
|
||||
enum LinkType<'a> {
|
||||
Escaped,
|
||||
IncludeRange(PathBuf, LineRange),
|
||||
IncludeAnchor(PathBuf, String),
|
||||
Include(PathBuf, RangeOrAnchor),
|
||||
Playpen(PathBuf, Vec<&'a str>),
|
||||
}
|
||||
|
||||
#[derive(PartialEq, Debug, Clone)]
|
||||
enum RangeOrAnchor {
|
||||
Range(LineRange),
|
||||
Anchor(String),
|
||||
}
|
||||
|
||||
// A range of lines specified with some include directive.
|
||||
#[derive(PartialEq, Debug, Clone)]
|
||||
enum LineRange {
|
||||
|
@ -165,8 +170,7 @@ impl<'a> LinkType<'a> {
|
|||
let base = base.as_ref();
|
||||
match self {
|
||||
LinkType::Escaped => None,
|
||||
LinkType::IncludeRange(p, _) => Some(return_relative_path(base, &p)),
|
||||
LinkType::IncludeAnchor(p, _) => Some(return_relative_path(base, &p)),
|
||||
LinkType::Include(p, _) => Some(return_relative_path(base, &p)),
|
||||
LinkType::Playpen(p, _) => Some(return_relative_path(base, &p)),
|
||||
}
|
||||
}
|
||||
|
@ -179,9 +183,8 @@ fn return_relative_path<P: AsRef<Path>>(base: P, relative: P) -> PathBuf {
|
|||
.to_path_buf()
|
||||
}
|
||||
|
||||
fn parse_include_path(path: &str) -> LinkType<'static> {
|
||||
let mut parts = path.splitn(4, ':').fuse();
|
||||
let path = parts.next().unwrap().into();
|
||||
fn parse_range_or_anchor(parts: Option<&str>) -> RangeOrAnchor {
|
||||
let mut parts = parts.unwrap_or("").splitn(3, ':').fuse();
|
||||
|
||||
let next_element = parts.next();
|
||||
let start = if let Some(value) = next_element.and_then(|s| s.parse::<usize>().ok()) {
|
||||
|
@ -190,7 +193,7 @@ fn parse_include_path(path: &str) -> LinkType<'static> {
|
|||
} else if let Some("") = next_element {
|
||||
None
|
||||
} else if let Some(anchor) = next_element {
|
||||
return LinkType::IncludeAnchor(path, String::from(anchor));
|
||||
return RangeOrAnchor::Anchor(String::from(anchor));
|
||||
} else {
|
||||
None
|
||||
};
|
||||
|
@ -202,16 +205,23 @@ fn parse_include_path(path: &str) -> LinkType<'static> {
|
|||
let end = end.map(|s| s.parse::<usize>());
|
||||
|
||||
match (start, end) {
|
||||
(Some(start), Some(Ok(end))) => LinkType::IncludeRange(path, LineRange::from(start..end)),
|
||||
(Some(start), Some(Err(_))) => LinkType::IncludeRange(path, LineRange::from(start..)),
|
||||
(Some(start), None) => LinkType::IncludeRange(path, LineRange::from(start..start + 1)),
|
||||
(None, Some(Ok(end))) => LinkType::IncludeRange(path, LineRange::from(..end)),
|
||||
(None, None) | (None, Some(Err(_))) => {
|
||||
LinkType::IncludeRange(path, LineRange::from(RangeFull))
|
||||
}
|
||||
(Some(start), Some(Ok(end))) => RangeOrAnchor::Range(LineRange::from(start..end)),
|
||||
(Some(start), Some(Err(_))) => RangeOrAnchor::Range(LineRange::from(start..)),
|
||||
(Some(start), None) => RangeOrAnchor::Range(LineRange::from(start..start + 1)),
|
||||
(None, Some(Ok(end))) => RangeOrAnchor::Range(LineRange::from(..end)),
|
||||
(None, None) | (None, Some(Err(_))) => RangeOrAnchor::Range(LineRange::from(RangeFull)),
|
||||
}
|
||||
}
|
||||
|
||||
fn parse_include_path(path: &str) -> LinkType<'static> {
|
||||
let mut parts = path.splitn(2, ':');
|
||||
|
||||
let path = parts.next().unwrap().into();
|
||||
let range_or_anchor = parse_range_or_anchor(parts.next());
|
||||
|
||||
LinkType::Include(path, range_or_anchor)
|
||||
}
|
||||
|
||||
#[derive(PartialEq, Debug, Clone)]
|
||||
struct Link<'a> {
|
||||
start_index: usize,
|
||||
|
@ -255,24 +265,14 @@ impl<'a> Link<'a> {
|
|||
match self.link_type {
|
||||
// omit the escape char
|
||||
LinkType::Escaped => Ok((&self.link_text[1..]).to_owned()),
|
||||
LinkType::IncludeRange(ref pat, ref range) => {
|
||||
LinkType::Include(ref pat, ref range_or_anchor) => {
|
||||
let target = base.join(pat);
|
||||
|
||||
fs::read_to_string(&target)
|
||||
.map(|s| take_lines(&s, range.clone()))
|
||||
.chain_err(|| {
|
||||
format!(
|
||||
"Could not read file for link {} ({})",
|
||||
self.link_text,
|
||||
target.display(),
|
||||
)
|
||||
.map(|s| match range_or_anchor {
|
||||
RangeOrAnchor::Range(range) => take_lines(&s, range.clone()),
|
||||
RangeOrAnchor::Anchor(anchor) => take_anchored_lines(&s, anchor),
|
||||
})
|
||||
}
|
||||
LinkType::IncludeAnchor(ref pat, ref anchor) => {
|
||||
let target = base.join(pat);
|
||||
|
||||
fs::read_to_string(&target)
|
||||
.map(|s| take_anchored_lines(&s, anchor))
|
||||
.chain_err(|| {
|
||||
format!(
|
||||
"Could not read file for link {} ({})",
|
||||
|
@ -419,7 +419,10 @@ mod tests {
|
|||
vec![Link {
|
||||
start_index: 22,
|
||||
end_index: 48,
|
||||
link_type: LinkType::IncludeRange(PathBuf::from("file.rs"), LineRange::from(9..20)),
|
||||
link_type: LinkType::Include(
|
||||
PathBuf::from("file.rs"),
|
||||
RangeOrAnchor::Range(LineRange::from(9..20))
|
||||
),
|
||||
link_text: "{{#include file.rs:10:20}}",
|
||||
}]
|
||||
);
|
||||
|
@ -435,7 +438,10 @@ mod tests {
|
|||
vec![Link {
|
||||
start_index: 22,
|
||||
end_index: 45,
|
||||
link_type: LinkType::IncludeRange(PathBuf::from("file.rs"), LineRange::from(9..10)),
|
||||
link_type: LinkType::Include(
|
||||
PathBuf::from("file.rs"),
|
||||
RangeOrAnchor::Range(LineRange::from(9..10))
|
||||
),
|
||||
link_text: "{{#include file.rs:10}}",
|
||||
}]
|
||||
);
|
||||
|
@ -451,7 +457,10 @@ mod tests {
|
|||
vec![Link {
|
||||
start_index: 22,
|
||||
end_index: 46,
|
||||
link_type: LinkType::IncludeRange(PathBuf::from("file.rs"), LineRange::from(9..)),
|
||||
link_type: LinkType::Include(
|
||||
PathBuf::from("file.rs"),
|
||||
RangeOrAnchor::Range(LineRange::from(9..))
|
||||
),
|
||||
link_text: "{{#include file.rs:10:}}",
|
||||
}]
|
||||
);
|
||||
|
@ -467,7 +476,10 @@ mod tests {
|
|||
vec![Link {
|
||||
start_index: 22,
|
||||
end_index: 46,
|
||||
link_type: LinkType::IncludeRange(PathBuf::from("file.rs"), LineRange::from(..20)),
|
||||
link_type: LinkType::Include(
|
||||
PathBuf::from("file.rs"),
|
||||
RangeOrAnchor::Range(LineRange::from(..20))
|
||||
),
|
||||
link_text: "{{#include file.rs::20}}",
|
||||
}]
|
||||
);
|
||||
|
@ -483,7 +495,10 @@ mod tests {
|
|||
vec![Link {
|
||||
start_index: 22,
|
||||
end_index: 44,
|
||||
link_type: LinkType::IncludeRange(PathBuf::from("file.rs"), LineRange::from(..)),
|
||||
link_type: LinkType::Include(
|
||||
PathBuf::from("file.rs"),
|
||||
RangeOrAnchor::Range(LineRange::from(..))
|
||||
),
|
||||
link_text: "{{#include file.rs::}}",
|
||||
}]
|
||||
);
|
||||
|
@ -499,7 +514,10 @@ mod tests {
|
|||
vec![Link {
|
||||
start_index: 22,
|
||||
end_index: 42,
|
||||
link_type: LinkType::IncludeRange(PathBuf::from("file.rs"), LineRange::from(..)),
|
||||
link_type: LinkType::Include(
|
||||
PathBuf::from("file.rs"),
|
||||
RangeOrAnchor::Range(LineRange::from(..))
|
||||
),
|
||||
link_text: "{{#include file.rs}}",
|
||||
}]
|
||||
);
|
||||
|
@ -515,9 +533,9 @@ mod tests {
|
|||
vec![Link {
|
||||
start_index: 22,
|
||||
end_index: 49,
|
||||
link_type: LinkType::IncludeAnchor(
|
||||
link_type: LinkType::Include(
|
||||
PathBuf::from("file.rs"),
|
||||
String::from("anchor")
|
||||
RangeOrAnchor::Anchor(String::from("anchor"))
|
||||
),
|
||||
link_text: "{{#include file.rs:anchor}}",
|
||||
}]
|
||||
|
@ -585,7 +603,10 @@ mod tests {
|
|||
Link {
|
||||
start_index: 38,
|
||||
end_index: 58,
|
||||
link_type: LinkType::IncludeRange(PathBuf::from("file.rs"), LineRange::from(..)),
|
||||
link_type: LinkType::Include(
|
||||
PathBuf::from("file.rs"),
|
||||
RangeOrAnchor::Range(LineRange::from(..))
|
||||
),
|
||||
link_text: "{{#include file.rs}}",
|
||||
}
|
||||
);
|
||||
|
@ -617,7 +638,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeRange(PathBuf::from("arbitrary"), LineRange::from(RangeFull))
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Range(LineRange::from(RangeFull))
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
@ -626,7 +650,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary:");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeRange(PathBuf::from("arbitrary"), LineRange::from(RangeFull))
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Range(LineRange::from(RangeFull))
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
@ -635,7 +662,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary::");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeRange(PathBuf::from("arbitrary"), LineRange::from(RangeFull))
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Range(LineRange::from(RangeFull))
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
@ -644,7 +674,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary::NaN");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeRange(PathBuf::from("arbitrary"), LineRange::from(RangeFull))
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Range(LineRange::from(RangeFull))
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
@ -653,7 +686,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary:5");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeRange(PathBuf::from("arbitrary"), LineRange::from(4..5))
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Range(LineRange::from(4..5))
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
@ -662,7 +698,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary:1");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeRange(PathBuf::from("arbitrary"), LineRange::from(0..1))
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Range(LineRange::from(0..1))
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
@ -671,7 +710,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary:0");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeRange(PathBuf::from("arbitrary"), LineRange::from(0..1))
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Range(LineRange::from(0..1))
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
@ -680,7 +722,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary:5:");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeRange(PathBuf::from("arbitrary"), LineRange::from(4..))
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Range(LineRange::from(4..))
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
@ -689,7 +734,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary:5:NaN");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeRange(PathBuf::from("arbitrary"), LineRange::from(4..))
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Range(LineRange::from(4..))
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
@ -698,7 +746,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary::5");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeRange(PathBuf::from("arbitrary"), LineRange::from(..5))
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Range(LineRange::from(..5))
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
@ -707,7 +758,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary:5:10");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeRange(PathBuf::from("arbitrary"), LineRange::from(4..10))
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Range(LineRange::from(4..10))
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
@ -716,7 +770,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary:-5");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeAnchor(PathBuf::from("arbitrary"), "-5".to_string())
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Anchor("-5".to_string())
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
@ -725,7 +782,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary:-5.7");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeAnchor(PathBuf::from("arbitrary"), "-5.7".to_string())
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Anchor("-5.7".to_string())
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
@ -734,7 +794,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary:some-anchor:this-gets-ignored");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeAnchor(PathBuf::from("arbitrary"), "some-anchor".to_string())
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Anchor("some-anchor".to_string())
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
@ -743,7 +806,10 @@ mod tests {
|
|||
let link_type = parse_include_path("arbitrary:5:10:17:anything:");
|
||||
assert_eq!(
|
||||
link_type,
|
||||
LinkType::IncludeRange(PathBuf::from("arbitrary"), LineRange::from(4..10))
|
||||
LinkType::Include(
|
||||
PathBuf::from("arbitrary"),
|
||||
RangeOrAnchor::Range(LineRange::from(4..10))
|
||||
)
|
||||
);
|
||||
}
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue