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Switch inline source blocks to using bracket depth from OrgSource instead of from the context.

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This is for the same reasons as footnote references.
This commit is contained in:
Tom Alexander 2023-08-28 02:54:37 -04:00
parent e731e8ff6b
commit c683516620
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GPG Key ID: D3A179C9A53C0EDE
2 changed files with 53 additions and 118 deletions
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152
src/parser/inline_source_block.rs
View File

@ -1,3 +1,4 @@
use nom::branch::alt;
use nom::bytes::complete::tag;
use nom::bytes::complete::tag_no_case;
use nom::character::complete::anychar;
@ -14,11 +15,11 @@ use tracing::span;
use super::org_source::OrgSource;
use super::Context;
use crate::error::CustomError;
use crate::error::MyError;
use crate::error::Res;
use crate::parser::exiting::ExitClass;
use crate::parser::parser_context::ContextElement;
use crate::parser::parser_context::ExitMatcherNode;
use crate::parser::parser_context::InlineSourceBlockBracket;
use crate::parser::parser_with_context::parser_with_context;
use crate::parser::util::exit_matcher_parser;
use crate::parser::util::get_consumed;
@ -75,16 +76,11 @@ fn header<'r, 's>(
) -> Res<OrgSource<'s>, OrgSource<'s>> {
let (remaining, _) = tag("[")(input)?;
let parser_context = context
.with_additional_node(ContextElement::InlineSourceBlockBracket(
InlineSourceBlockBracket {
position: remaining,
depth: 0,
},
))
.with_additional_node(ContextElement::ExitMatcherNode(ExitMatcherNode {
let exit_with_depth = header_end(remaining.get_bracket_depth());
let parser_context =
context.with_additional_node(ContextElement::ExitMatcherNode(ExitMatcherNode {
class: ExitClass::Beta,
exit_matcher: &header_end,
exit_matcher: &exit_with_depth,
}));
let (remaining, header_contents) = recognize(many_till(
@ -95,37 +91,32 @@ fn header<'r, 's>(
Ok((remaining, header_contents))
}
#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
fn header_end<'r, 's>(
context: Context<'r, 's>,
input: OrgSource<'s>,
) -> Res<OrgSource<'s>, OrgSource<'s>> {
let context_depth = get_bracket_depth(context)
.expect("This function should only be called from inside an inline source block header.");
let text_since_context_entry = get_consumed(context_depth.position, input);
let mut current_depth = context_depth.depth;
for c in Into::<&str>::into(text_since_context_entry).chars() {
match c {
'[' => {
current_depth += 1;
}
']' if current_depth == 0 => {
panic!("Exceeded inline source block header bracket depth.")
}
']' if current_depth > 0 => {
current_depth -= 1;
}
_ => {}
}
}
if current_depth == 0 {
let close_bracket = tag::<&str, OrgSource<'_>, CustomError<OrgSource<'_>>>("]")(input);
if close_bracket.is_ok() {
return close_bracket;
}
fn header_end(
starting_bracket_depth: isize,
) -> impl for<'r, 's> Fn(Context<'r, 's>, OrgSource<'s>) -> Res<OrgSource<'s>, OrgSource<'s>> {
move |context: Context, input: OrgSource<'_>| {
_header_end(context, input, starting_bracket_depth)
}
}
line_ending(input)
#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
fn _header_end<'r, 's>(
_context: Context<'r, 's>,
input: OrgSource<'s>,
starting_bracket_depth: isize,
) -> Res<OrgSource<'s>, OrgSource<'s>> {
let current_depth = input.get_bracket_depth() - starting_bracket_depth;
if current_depth > 0 {
// Its impossible for the next character to end the header if we're any amount of bracket deep
return Err(nom::Err::Error(CustomError::MyError(MyError(
"NoHeaderEnd".into(),
))));
}
if current_depth < 0 {
// This shouldn't be possible because if depth is 0 then a closing bracket should end the header.
unreachable!("Exceeded header bracket depth.")
}
alt((tag("]"), line_ending))(input)
}
#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
@ -135,16 +126,11 @@ fn body<'r, 's>(
) -> Res<OrgSource<'s>, OrgSource<'s>> {
let (remaining, _) = tag("{")(input)?;
let parser_context = context
.with_additional_node(ContextElement::InlineSourceBlockBracket(
InlineSourceBlockBracket {
position: remaining,
depth: 0,
},
))
.with_additional_node(ContextElement::ExitMatcherNode(ExitMatcherNode {
let exit_with_depth = body_end(remaining.get_brace_depth());
let parser_context =
context.with_additional_node(ContextElement::ExitMatcherNode(ExitMatcherNode {
class: ExitClass::Beta,
exit_matcher: &body_end,
exit_matcher: &exit_with_depth,
}));
let (remaining, body_contents) = recognize(many_till(
@ -165,60 +151,28 @@ fn body<'r, 's>(
Ok((remaining, body_contents))
}
fn body_end(
starting_brace_depth: isize,
) -> impl for<'r, 's> Fn(Context<'r, 's>, OrgSource<'s>) -> Res<OrgSource<'s>, OrgSource<'s>> {
move |context: Context, input: OrgSource<'_>| _body_end(context, input, starting_brace_depth)
}
#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
fn body_end<'r, 's>(
context: Context<'r, 's>,
fn _body_end<'r, 's>(
_context: Context<'r, 's>,
input: OrgSource<'s>,
starting_brace_depth: isize,
) -> Res<OrgSource<'s>, OrgSource<'s>> {
let context_depth = get_bracket_depth(context)
.expect("This function should only be called from inside an inline source block body.");
let text_since_context_entry = get_consumed(context_depth.position, input);
let mut current_depth = context_depth.depth;
for c in Into::<&str>::into(text_since_context_entry).chars() {
match c {
'{' => {
current_depth += 1;
}
'}' if current_depth == 0 => {
panic!("Exceeded inline source block body bracket depth.")
}
'}' if current_depth > 0 => {
current_depth -= 1;
}
_ => {}
}
let current_depth = input.get_brace_depth() - starting_brace_depth;
if current_depth > 0 {
// Its impossible for the next character to end the body if we're any amount of brace deep
return Err(nom::Err::Error(CustomError::MyError(MyError(
"NoBodyEnd".into(),
))));
}
{
#[cfg(feature = "tracing")]
let span = span!(
tracing::Level::DEBUG,
"inside end body",
remaining = Into::<&str>::into(input),
current_depth = current_depth
);
#[cfg(feature = "tracing")]
let _enter = span.enter();
if current_depth == 0 {
let close_bracket = tag::<&str, OrgSource<'_>, CustomError<OrgSource<'_>>>("}")(input);
if close_bracket.is_ok() {
return close_bracket;
}
}
if current_depth < 0 {
// This shouldn't be possible because if depth is 0 then a closing brace should end the body.
unreachable!("Exceeded body brace depth.")
}
line_ending(input)
}
#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
pub fn get_bracket_depth<'r, 's>(
context: Context<'r, 's>,
) -> Option<&'r InlineSourceBlockBracket<'s>> {
for node in context.iter() {
match node.get_data() {
ContextElement::InlineSourceBlockBracket(depth) => return Some(depth),
_ => {}
}
}
None
alt((tag("}"), line_ending))(input)
}

19
src/parser/parser_context.rs
View File

@ -123,19 +123,6 @@ pub enum ContextElement<'r, 's> {
/// org-mode document since text needs to be re-parsed to look for
/// radio links matching the contents of radio targets.
RadioTarget(Vec<&'r Vec<Object<'s>>>),
/// Stores the current bracket or parenthesis depth inside an inline babel call.
///
/// Inside an inline babel call the headers must have balanced
/// parentheses () and the arguments must have balanced brackets
/// [], so this stores the amount of opening brackets subtracted
/// by the amount of closing brackets within the definition must
/// equal zero.
///
/// A reference to the position in the string is also included so
/// unbalanced brackets can be detected in the middle of an
/// object.
InlineSourceBlockBracket(InlineSourceBlockBracket<'s>),
}
pub struct ExitMatcherNode<'r> {
@ -143,12 +130,6 @@ pub struct ExitMatcherNode<'r> {
pub class: ExitClass,
}
#[derive(Debug)]
pub struct InlineSourceBlockBracket<'s> {
pub position: OrgSource<'s>,
pub depth: usize,
}
impl<'r> std::fmt::Debug for ExitMatcherNode<'r> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
let mut formatter = f.debug_struct("ExitMatcherNode");