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-rw-r--r--src/parser/conversion/block.rs202
1 files changed, 0 insertions, 202 deletions
diff --git a/src/parser/conversion/block.rs b/src/parser/conversion/block.rs
deleted file mode 100644
index b14c2b5..0000000
--- a/src/parser/conversion/block.rs
+++ /dev/null
@@ -1,202 +0,0 @@
-use failure::{Error,bail};
-use pest::iterators::Pair;
-
-use crate::document_tree::{
- Element,HasChildren,ExtraAttributes,
- elements as e,
- element_categories as c,
- extra_attributes as a,
- attribute_types as at
-};
-
-use crate::parser::{
- pest_rst::Rule,
- pair_ext_parse::PairExt,
-};
-use super::{whitespace_normalize_name, inline::convert_inlines};
-
-
-#[derive(PartialEq)]
-pub(super) enum TitleKind { Double(char), Single(char) }
-
-pub(super) enum TitleOrSsubel {
- Title(e::Title, TitleKind),
- Ssubel(c::StructuralSubElement),
-}
-
-
-pub(super) fn convert_ssubel(pair: Pair<Rule>) -> Result<Option<TitleOrSsubel>, Error> {
- use self::TitleOrSsubel::*;
- Ok(Some(match pair.as_rule() {
- Rule::title => { let (t, k) = convert_title(pair)?; Title(t, k) },
- //TODO: subtitle, decoration, docinfo
- Rule::EOI => return Ok(None),
- _ => Ssubel(convert_substructure(pair)?.into()),
- }))
-}
-
-
-fn convert_substructure(pair: Pair<Rule>) -> Result<c::SubStructure, Error> {
- Ok(match pair.as_rule() {
- // todo: Topic, Sidebar, Transition
- // no section here, as it’s constructed from titles
- _ => convert_body_elem(pair)?.into(),
- })
-}
-
-
-fn convert_body_elem(pair: Pair<Rule>) -> Result<c::BodyElement, Error> {
- Ok(match pair.as_rule() {
- Rule::paragraph => convert_paragraph(pair)?.into(),
- Rule::target => convert_target(pair)?.into(),
- Rule::substitution_def => convert_substitution_def(pair)?.into(),
- Rule::admonition_gen => convert_admonition_gen(pair)?.into(),
- Rule::image => convert_image::<e::Image>(pair)?.into(),
- Rule::bullet_list => convert_bullet_list(pair)?.into(),
- rule => unimplemented!("unhandled rule {:?}", rule),
- })
-}
-
-
-fn convert_title(pair: Pair<Rule>) -> Result<(e::Title, TitleKind), Error> {
- let mut title: Option<String> = None;
- let mut title_inlines: Option<Vec<c::TextOrInlineElement>> = None;
- let mut adornment_char: Option<char> = None;
- // title_double or title_single. Extract kind before consuming
- let inner_pair = pair.into_inner().next().unwrap();
- let kind = inner_pair.as_rule();
- for p in inner_pair.into_inner() {
- match p.as_rule() {
- Rule::line => {
- title = Some(p.as_str().to_owned());
- title_inlines = Some(convert_inlines(p)?);
- },
- Rule::adornments => adornment_char = Some(p.as_str().chars().next().expect("Empty adornment?")),
- rule => unimplemented!("Unexpected rule in title: {:?}", rule),
- };
- }
- // now we encountered one line of text and one of adornments
- // TODO: emit error if the adornment line is too short (has to match title length)
- let mut elem = e::Title::with_children(title_inlines.expect("No text in title"));
- if let Some(title) = title {
- //TODO: slugify properly
- let slug = title.to_lowercase().replace("\n", "").replace(" ", "-");
- elem.names_mut().push(at::NameToken(slug));
- }
- let title_kind = match kind {
- Rule::title_double => TitleKind::Double(adornment_char.unwrap()),
- Rule::title_single => TitleKind::Single(adornment_char.unwrap()),
- _ => unreachable!(),
- };
- Ok((elem, title_kind))
-}
-
-
-fn convert_paragraph(pair: Pair<Rule>) -> Result<e::Paragraph, Error> {
- Ok(e::Paragraph::with_children(convert_inlines(pair)?))
-}
-
-
-fn convert_target(pair: Pair<Rule>) -> Result<e::Target, Error> {
- let mut elem: e::Target = Default::default();
- elem.extra_mut().anonymous = false;
- for p in pair.into_inner() {
- match p.as_rule() {
- Rule::target_name_uq | Rule::target_name_qu => {
- elem.ids_mut().push(p.as_str().into());
- elem.names_mut().push(p.as_str().into());
- },
- // TODO: also handle non-urls
- Rule::link_target => elem.extra_mut().refuri = Some(p.parse()?),
- rule => panic!("Unexpected rule in target: {:?}", rule),
- }
- }
- Ok(elem)
-}
-
-fn convert_substitution_def(pair: Pair<Rule>) -> Result<e::SubstitutionDefinition, Error> {
- let mut pairs = pair.into_inner();
- let name = whitespace_normalize_name(pairs.next().unwrap().as_str()); // Rule::substitution_name
- let inner_pair = pairs.next().unwrap();
- let inner: Vec<c::TextOrInlineElement> = match inner_pair.as_rule() {
- Rule::replace => convert_replace(inner_pair)?,
- Rule::image => vec![convert_image::<e::ImageInline>(inner_pair)?.into()],
- rule => panic!("Unknown substitution rule {:?}", rule),
- };
- let mut subst_def = e::SubstitutionDefinition::with_children(inner);
- subst_def.names_mut().push(at::NameToken(name));
- Ok(subst_def)
-}
-
-fn convert_replace(pair: Pair<Rule>) -> Result<Vec<c::TextOrInlineElement>, Error> {
- let mut pairs = pair.into_inner();
- let paragraph = pairs.next().unwrap();
- convert_inlines(paragraph)
-}
-
-fn convert_image<I>(pair: Pair<Rule>) -> Result<I, Error> where I: Element + ExtraAttributes<a::Image> {
- let mut pairs = pair.into_inner();
- let mut image = I::with_extra(a::Image::new(
- pairs.next().unwrap().as_str().trim().parse()?, // line
- ));
- for opt in pairs {
- let mut opt_iter = opt.into_inner();
- let opt_name = opt_iter.next().unwrap();
- let opt_val = opt_iter.next().unwrap();
- match opt_name.as_str() {
- "class" => image.classes_mut().push(opt_val.as_str().to_owned()),
- "name" => image.names_mut().push(opt_val.as_str().into()),
- "alt" => image.extra_mut().alt = Some(opt_val.as_str().to_owned()),
- "height" => image.extra_mut().height = Some(opt_val.parse()?),
- "width" => image.extra_mut().width = Some(opt_val.parse()?),
- "scale" => image.extra_mut().scale = Some(parse_scale(&opt_val)?),
- "align" => image.extra_mut().align = Some(opt_val.parse()?),
- "target" => image.extra_mut().target = Some(opt_val.parse()?),
- name => bail!("Unknown Image option {}", name),
- }
- }
- Ok(image)
-}
-
-fn parse_scale(pair: &Pair<Rule>) -> Result<u8, Error> {
- let input = if pair.as_str().chars().rev().next() == Some('%') { &pair.as_str()[..pair.as_str().len()-1] } else { pair.as_str() };
- use pest::error::{Error,ErrorVariant};
- Ok(input.parse().map_err(|e: std::num::ParseIntError| {
- let var: ErrorVariant<Rule> = ErrorVariant::CustomError { message: e.to_string() };
- Error::new_from_span(var, pair.as_span())
- })?)
-}
-
-fn convert_admonition_gen(pair: Pair<Rule>) -> Result<c::BodyElement, Error> {
- let mut iter = pair.into_inner();
- let typ = iter.next().unwrap().as_str();
- // TODO: in reality it contains body elements.
- let children: Vec<c::BodyElement> = iter.map(|p| e::Paragraph::with_children(vec![p.as_str().into()]).into()).collect();
- Ok(match typ {
- "attention" => e::Attention::with_children(children).into(),
- "hint" => e::Hint::with_children(children).into(),
- "note" => e::Note::with_children(children).into(),
- "caution" => e::Caution::with_children(children).into(),
- "danger" => e::Danger::with_children(children).into(),
- "error" => e::Error::with_children(children).into(),
- "important" => e::Important::with_children(children).into(),
- "tip" => e::Tip::with_children(children).into(),
- "warning" => e::Warning::with_children(children).into(),
- typ => panic!("Unknown admontion type {}!", typ),
- })
-}
-
-fn convert_bullet_list(pair: Pair<Rule>) -> Result<e::BulletList, Error> {
- Ok(e::BulletList::with_children(pair.into_inner().map(convert_bullet_item).collect::<Result<_, _>>()?))
-}
-
-fn convert_bullet_item(pair: Pair<Rule>) -> Result<e::ListItem, Error> {
- let mut iter = pair.into_inner();
- let mut children: Vec<c::BodyElement> = vec![
- convert_paragraph(iter.next().unwrap())?.into()
- ];
- for p in iter {
- children.push(convert_body_elem(p)?);
- }
- Ok(e::ListItem::with_children(children))
-}