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#![warn(rust_2018_idioms)]
use pandoc_ast::{self, Block, Format, Inline, Pandoc};
use regex::Regex;
use lazy_static::lazy_static;
pub fn make_acronym_formatting(mut pandoc: Pandoc) -> Pandoc {
for block in &mut pandoc.blocks {
process_block(block);
}
pandoc
}
fn process_block(block: &mut Block) {
match block {
Block::Plain(inlines) | Block::Para(inlines) | Block::Header(_, _, inlines) => {
process_inlines(inlines);
}
Block::BlockQuote(blocks) | Block::Div(_, blocks) => {
blocks.into_iter().for_each(process_block);
}
Block::LineBlock(inline_vectors) => {
inline_vectors.into_iter().for_each(process_inlines);
}
Block::BulletList(block_vectors) | Block::OrderedList(_, block_vectors) => {
block_vectors
.into_iter()
.flat_map(|i| i)
.for_each(process_block);
}
Block::DefinitionList(list) => {
for (inlines, blocks) in list {
process_inlines(inlines);
blocks.into_iter().flat_map(|i| i).for_each(process_block);
}
}
Block::Table(inlines, _alignment, _relative_col_widths, header_cells, body_cells) => {
process_inlines(inlines);
Iterator::chain(
header_cells.into_iter().flat_map(|i| i),
body_cells.into_iter().flat_map(|i| i).flat_map(|i| i),
).for_each(process_block);
}
Block::RawBlock(..) | Block::CodeBlock(..) | Block::HorizontalRule | Block::Null => {}
}
}
fn process_inlines(inlines: &mut Vec<Inline>) {
let mut changes: Vec<(usize, Inline, Option<String>, Option<String>)> = Vec::new();
lazy_static! {
static ref RE: Regex = Regex::new(r"\(\+(\-|\.|\~)?(\*|\^)?\w(\w|\-|_)*\)").unwrap();
}
for (offset, inline) in inlines.into_iter().enumerate() {
match inline {
Inline::Emph(inlines)
| Inline::Strong(inlines)
| Inline::Strikeout(inlines)
| Inline::Superscript(inlines)
| Inline::Subscript(inlines)
| Inline::SmallCaps(inlines)
| Inline::Quoted(_, inlines)
| Inline::Link(_, inlines, _)
| Inline::Image(_, inlines, _)
| Inline::Span(_, inlines) => process_inlines(inlines),
Inline::Note(blocks) => blocks.into_iter().for_each(process_block),
Inline::Str(string) => {
if let Some(cap) = RE.find(string) {
let slice = cap.as_str();
let (ty, keyword_offset) = match &slice.as_bytes()[2..4] {
b"-*" | b"-^" => (r"\aclp", 4),
b".*" | b".^" => (r"\acsp", 4),
b"~*" | b"~^" => (r"\acfp", 4),
[b'-', _] => (r"\acl", 3),
[b'.', _] => (r"\acs", 3),
[b'~', _] => (r"\acf", 3),
[b'*', _] | [b'^', _] => (r"\acp", 3),
_ => (r"\ac", 2),
};
let keyword = &string[cap.start() + keyword_offset..cap.end() - 1];
let raw_inline = Inline::RawInline(
Format("tex".to_string()),
format!("{}{{{}}}", ty, keyword),
);
let before = if cap.start() == 0 {
None
} else {
Some(string[..cap.start()].to_string())
};
let after = if cap.end() == string.len() {
None
} else {
Some(string[cap.end()..].to_string())
};
changes.push((offset, raw_inline, before, after));
}
}
_ => {}
}
}
let mut offset = 0;
for (i, command, before, after) in changes {
let i = i + offset;
inlines[i] = command;
if let Some(s) = after {
inlines.insert(i + 1, Inline::Str(s));
offset += 1;
}
if let Some(s) = before {
inlines.insert(i, Inline::Str(s));
offset += 1;
}
}
}