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better component templates

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This commit is contained in:
Laila van Reenen
2026-02-02 01:05:17 +01:00
parent 865387d021
commit c538b44f6b
6 changed files with 677 additions and 489 deletions
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6
Cargo.lock generated
View File

@@ -227,8 +227,7 @@ dependencies = [
[[package]]
name = "pulldown-cmark"
version = "0.13.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1e8bbe1a966bd2f362681a44f6edce3c2310ac21e4d5067a6e7ec396297a6ea0"
source = "git+https://git.gay/LailaTheElf/pulldown-cmark.git?branch=feature%2FeventTree#2300d0db6541279c41928b44d12eac510ecc3199"
dependencies = [
"bitflags",
"getopts",
@@ -241,8 +240,7 @@ dependencies = [
[[package]]
name = "pulldown-cmark-escape"
version = "0.11.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "007d8adb5ddab6f8e3f491ac63566a7d5002cc7ed73901f72057943fa71ae1ae"
source = "git+https://git.gay/LailaTheElf/pulldown-cmark.git?branch=feature%2FeventTree#2300d0db6541279c41928b44d12eac510ecc3199"
[[package]]
name = "quote"

6
Cargo.toml
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@@ -7,6 +7,10 @@ edition = "2024"
clap = { version = "4.5.55", features = ["derive"] }
hashlink = "0.10.0"
minijinja = { version = "2.10.2", features = ["loader", "builtins", "json"] }
pulldown-cmark = { version = "0.13.0", features = ["serde"] }
regex = "1.11.1"
yaml-rust2 = "0.10.2"
[dependencies.pulldown-cmark]
git = "https://git.gay/LailaTheElf/pulldown-cmark.git"
branch = "feature/eventTree"
features = ["serde"]

135
src/main.rs
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@@ -1,96 +1,65 @@
use std::{path::Path, fs};
use std::{convert::Infallible, fs, path::Path};
use clap::Parser;
use minijinja::Environment;
mod render;
use render::{Renderer, IndexItem, build_jinja_env, Template};
use render::{Renderer, IndexItem};
mod version;
use version::VERSION;
fn render_index(
fn render_page(
page: &IndexItem,
out_path: &Path,
index: &IndexItem,
index: &Renderer,
cur_path: &Path,
site_index: &Renderer,
templates: Option<Vec<Box<Template>>>,
jinja_env: Option<&Environment>
) {
let dest_path: &Path = &cur_path.join(&index.friendly);
// println!("dest_path: {:?}", dest_path);
let templates = match templates {
Some(template) => template,
None => Template::index(&site_index.path.join("templates")).unwrap(),
let friendly = match page.friendly.len() {
0 => "index",
_ => &page.friendly
};
let jinja_env = match jinja_env {
Some(env) => env,
None => &build_jinja_env(templates.clone()),
};
match &index.src {
Some(src) => {
// a source file is available. try to render it
let friendly = match index.friendly.len() {
0 => String::from("index"),
_ => index.friendly.clone()
if let Some(src) = &page.src {
if !page.is_asset {
// get output file extention
let extention = match page.target_extention.len() {
0 => String::from("html"),
_ => page.target_extention.clone()
};
if !index.is_asset {
// find template
let templ: Option<Template> = {
let mut out = None;
for templ in templates.clone() {
if let Some(templ) = templ.search(index.template.clone()) {
out = Some(templ);
break;
}
}
out
};
// get output file extention
let extention = match index.target_extention.len() {
0 => match templ {
Some(templ) => templ.extention,
None => String::from("html")
}
_ => index.target_extention.clone()
};
let dest_path: &Path = &cur_path.join(format!("{}.{}", friendly, extention));
// render the content
let dest_path_str = dest_path.to_str();
if dest_path_str == None {
println!("ERROR: dest path is None for page: {}", friendly);
return;
let dest_path: &Path = &cur_path.join(format!("{}.{}", friendly, extention));
// render the content
println!("INFO: render {}", dest_path.to_str().unwrap());
match index.render_page(page) {
Ok(content) => {
let _: Result<(), Infallible> = fs::write(dest_path, content).or_else(|e|{
println!("ERROR during writing: {:?}", e);
Ok(())
});
},
Err(e) => {
println!("ERROR during rendering: {:?}", e);
},
};
}
else {
// file is an asset, no rendering done for assets
let dest_path: &Path = &cur_path.join(friendly);
match dest_path.to_str() {
Some(dest_path_str) => {
println!("INFO: copy {}", dest_path_str);
let _: Result<u64, Infallible> = fs::copy(src, dest_path).or_else(|e|{
println!("ERROR during copying: {:?}", e);
Ok(0)
});
}
println!("INFO: render {}", dest_path_str.unwrap());
let content = site_index.render_page(index, &site_index.site, jinja_env).unwrap();
fs::write(dest_path, content).unwrap();
}
else {
// file is an asset, no rendering done for assets
let dest_path: &Path = &cur_path.join(friendly.clone());
match dest_path.to_str() {
Some(dest_path_str) => {
println!("INFO: copy {}", dest_path_str);
let _ = fs::copy(src, dest_path);
}
None => {
println!("ERROR: dest path is None for asset: {}", friendly);
}
None => {
println!("ERROR: dest path is None for asset: {}", friendly);
}
}
},
None => {
let _ = fs::create_dir(dest_path);
},
};
}
}
for page in &index.sub_pages {
render_index(out_path, page, dest_path, &site_index, Some(templates.clone()), Some(&jinja_env));
for page in page.sub_pages.iter() {
render_page(page, out_path, &index, cur_path);
}
}
@@ -121,16 +90,16 @@ fn main() {
let src_path = Path::new(&args.source);
let out_path = Path::new(&args.output);
// scan all pages, template, components, etc.
let index = match Renderer::index(src_path).unwrap() {
// scan all pages adn templates
let index = match Renderer::index(src_path).or_else::<Infallible, _>(|e| {
panic!("PANIC: faild to index: {:?}", e);
}).unwrap() {
Some(index) => index,
None => {
println!("ERROR: src directory not found ({})", src_path.to_str().or(Some("Utf parse error")).unwrap());
return;
panic!("ERROR: src directory not found ({})", src_path.to_str().or(Some("Utf parse error")).unwrap());
},
};
// render website
let _ = fs::create_dir_all(out_path);
render_index(out_path, &index.site, out_path, &index, None, None);
// render pages
render_page(&index.site, out_path, &index, out_path);
}

82
src/render.rs
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@@ -1,63 +1,42 @@
mod index;
mod parse_md;
use std::{collections::BTreeMap, fs, path::Path, io::Error as IoError};
use minijinja::{context, Environment, Value, Error as JinjaError};
use index::indexer;
use parse_md::parse_md;
use std::{collections::BTreeMap, fs, io::Error as IoError, path::Path};
use minijinja::{Environment, Error as JinjaError, Value, context};
use index::indexer::Error as IndexError;
use yaml_rust2::Yaml;
use crate::render::{index::indexer::split_params, parse_md::{Parser, Error as ParserError}};
pub use index::indexer::{IndexItem, Template};
#[derive(Debug)]
pub enum Error {
NoSrc,
Io(IoError),
Jinja(JinjaError)
}
pub fn build_jinja_env<'a>(templates: Vec<Box<indexer::Template>>) -> Environment<'a> {
build_jinja_env_dir(templates)
}
fn build_jinja_env_dir<'a>(templates: Vec<Box<indexer::Template>>) -> Environment<'a> {
let mut env: Environment = Environment::new();
for template in templates {
match template.src {
Some(src) => {
match env.add_template_owned(template.name.clone(), src) {
Ok(_) => {},
Err(err) => println!("ERROR: failt to add template \"{}\" ({err:?})", template.name),
}
},
None => {
for plate in template.sub_templates {
if let Some(src) = plate.src {
let name = format!("{}/{}", template.name.clone(), plate.name.clone());
match env.add_template_owned(name.clone(), src) {
Ok(_) => {}, //println!("template name: {name}"),
Err(err) => println!("ERROR: failt to add template \"{name}\" ({err:?})"),
}
}
}
}
};
}
env
Jinja(JinjaError),
Indexer(IndexError),
Parser(ParserError),
}
#[derive(Debug)]
pub struct Renderer {
// jinja_env: Environment<'a>,
pub struct Renderer<'a> {
pub site: IndexItem,
pub path: Box<Path>
templates: Vec<Template>,
jinja_env: Environment<'a>,
}
impl Renderer {
pub fn index(path: &Path) -> Result<Option<Renderer>, indexer::Error> {
if let Some(site_index) = IndexItem::index(&path)? {
impl<'a> Renderer<'a> {
pub fn index(path: &Path) -> Result<Option<Renderer>, Error> {
if let Some(site_index) = IndexItem::index(&path).or_else(|e| Err(Error::Indexer(e)))? {
let templates = Template::index(&path.join("templates")).or_else(|e| Err(Error::Indexer(e)))?;
let mut jinja_env = Environment::new();
for tmpl in templates.iter() {
tmpl.add_to_jinja_env(&mut jinja_env).or_else(|e| Err(Error::Jinja(e)))?;
};
Ok(Some(Renderer {
site: site_index,
path: Box::from(path)
templates,
jinja_env,
}))
}
else {
@@ -96,26 +75,27 @@ impl Renderer {
}
}
pub fn render_page(&self, page: &IndexItem, index: &IndexItem, jinja_env: &Environment) -> Result<String, Error> {
pub fn render_page(&self, page: &IndexItem) -> Result<String, Error> {
if page.src == None {
return Err(Error::NoSrc);
}
};
let content = fs::read_to_string(page.src.as_ref().unwrap()).or_else(|e| Err(Error::Io(e)))?;
let split = indexer::split_params(content);
match parse_md(split.md, jinja_env) {
Some(md) => {
let template = jinja_env.get_template(&page.template).or_else(|e| Err(Error::Jinja(e)))?;
let split = split_params(content);
let mut parser = Parser::new(&split.md, &self.templates);
match parser.render() {
Ok(body) => {
let template = self.jinja_env.get_template(&page.template).or_else(|e| Err(Error::Jinja(e)))?;
let html = template.render(context! {
index => index.to_minijinja(),
index => self.site.to_minijinja(),
is_error_not_found => false,
url => page.get_url(),
body => md,
body,
params => Renderer::convert_yaml(split.yaml)
}).or_else(|e| Err(Error::Jinja(e)))?;
Ok(html)
},
None => todo!()
Err(e) => Err(Error::Parser(e))
}
}
}

31
src/render/index.rs
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@@ -3,6 +3,7 @@ pub mod indexer {
use core::fmt;
use std::{collections::BTreeMap, ffi::OsString, fs, path::Path, io::Error as IoError};
use hashlink::LinkedHashMap;
use minijinja::{Environment, Error as JinjaError};
use regex::Regex;
use yaml_rust2::{Yaml, YamlLoader};
@@ -218,7 +219,7 @@ pub mod indexer {
pub extention: String,
pub path: Option<String>,
pub src: Option<String>,
pub sub_templates: Vec<Box<Template>>
pub sub_templates: Vec<Template>
}
impl Template {
const fn new() -> Template {
@@ -258,7 +259,7 @@ pub mod indexer {
None
}
pub fn index(path: &Path) -> Result<Vec<Box<Self>>, Error> {
pub fn index(path: &Path) -> Result<Vec<Self>, Error> {
match Self::scan_template(path)? {
Some(templates) => Ok(templates.sub_templates),
None => Ok(Vec::new()),
@@ -307,22 +308,40 @@ pub mod indexer {
Ok(None)
}
fn scan_dir(path: &Path) -> Result<Vec<Box<Template>>, Error> {
let mut items: Vec<Box<Template>> = Vec::new();
fn scan_dir(path: &Path) -> Result<Vec<Template>, Error> {
let mut items: Vec<Template> = Vec::new();
let list = fs::read_dir(path).or(Err(Error::InvalidPathComponent))?;
for entry in list {
let entry = entry.or_else(|e| Err(Error::ReadDir(e)))?;
let item: Option<Template> = Template::scan_template(&entry.path())?;
if let Some(i) = item {
items.push(Box::from(i));
items.push(i);
}
}
items.sort_by(|i, c| i.name.cmp(&c.name));
Ok(items)
}
}
impl Template {
pub fn add_to_jinja_env(&self, env: &mut Environment) -> Result<(), JinjaError> {
self.add_to_jinja_env_with_path(env, String::new())
}
fn add_to_jinja_env_with_path(&self, env: &mut Environment, mut path: String) -> Result<(), JinjaError> {
path.push_str(&self.name);
if let Some(source) = &self.src {
env.add_template_owned(path.clone(), source.clone())?;
}
path.push_str("/");
for tmpl in self.sub_templates.iter() {
tmpl.add_to_jinja_env_with_path(env, path.clone())?;
}
Ok(())
}
}
pub struct SplitMd {
pub yaml: Yaml,

906
src/render/parse_md.rs
View File

@@ -1,360 +1,578 @@
use std::{collections::BTreeMap};
use pulldown_cmark::{Event, Options, Parser, Tag, TagEnd};
use minijinja::{context, Environment, Value};
use pulldown_cmark::{Options, Parser as PulldownParser, Tree, TreeEvent};
use minijinja::{Environment, Value, context, Error as JinjaError};
use regex::Regex;
pub fn parse_md(md: String, jinja_env: &Environment) -> Option<String> {
let mut options = Options::empty();
options.insert(Options::ENABLE_TABLES);
options.insert(Options::ENABLE_FOOTNOTES);
options.insert(Options::ENABLE_STRIKETHROUGH);
options.insert(Options::ENABLE_TASKLISTS);
// options.insert(Options::ENABLE_SMART_PUNCTUATION);
// options.insert(Options::ENABLE_HEADING_ATTRIBUTES);
options.insert(Options::ENABLE_YAML_STYLE_METADATA_BLOCKS);
// options.insert(Options::ENABLE_PLUSES_DELIMITED_METADATA_BLOCKS);
// options.insert(Options::ENABLE_OLD_FOOTNOTES);
options.insert(Options::ENABLE_MATH);
options.insert(Options::ENABLE_GFM);
options.insert(Options::ENABLE_DEFINITION_LIST);
options.insert(Options::ENABLE_SUPERSCRIPT);
options.insert(Options::ENABLE_SUBSCRIPT);
options.insert(Options::ENABLE_WIKILINKS);
use crate::render::Template;
let md = md_preprocessor(&md, jinja_env);
// let mut parser = Parser::new_ext("", options);
// let mut in_heading_two: Vec<Event> = Vec::new();
let parser = Parser::new_ext(&md, options).filter_map(|event| {
match &event {
Event::Start(tag) => {
match tag {
Tag::Paragraph => {
render_component("paragraph_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::Heading { level, id, classes, attrs } => {
render_component("heading_start", context! {
level => *level as u8,
id,
classes,
attrs
}, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::BlockQuote(block_quote_kind) => {
render_component("blockquote_start", context! {
kind => block_quote_kind
}, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::CodeBlock(code_block_kind) => {
render_component("codeblock_start", context! {
kind => code_block_kind
}, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::HtmlBlock => {
render_component("htmlblock_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::List(start) => {
render_component("list_start", context! {
start
}, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::Item => {
render_component("item_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::FootnoteDefinition(cow_str) => {
render_component("footnote_definition_start", context! {
label => cow_str
}, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::DefinitionList => {
render_component("definitionlist_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::DefinitionListTitle => {
render_component("definitionlist_title_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::DefinitionListDefinition => {
render_component("definitionlist_definition_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::Table(alignments) => {
render_component("table_start", context! {
alignments
}, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::TableHead => {
render_component("tablehead_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::TableRow => {
render_component("tablerow_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::TableCell => {
render_component("tablecell_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::Emphasis => {
render_component("emphasis_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::Strong => {
render_component("strong_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::Strikethrough => {
render_component("strikethrough_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::Superscript => {
render_component("superscript_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::Subscript => {
render_component("subscript_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::Link { link_type, dest_url, title, id } => {
let re = Regex::new(r"^%(?<tags>[^%]+)%").unwrap();
let (url, args) = match re.captures(&dest_url) {
Some(args) => {
(dest_url.strip_prefix(args.get(0).unwrap().as_str()).unwrap().to_string(), parse_args(args.name("tags").unwrap().as_str()))
},
None => (dest_url.to_string(), Value::UNDEFINED)
};
render_component("link_start", context! {
link_type => link_type,
dest_url => url,
title => title,
id => id,
args => args
}, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::Image { link_type, dest_url, title, id } => {
render_component("image_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
Tag::MetadataBlock(_metadata_block_kind) => {
render_component("metadata_block_start", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
}
#[derive(Debug)]
pub enum Error {
NoCurrentEvent,
JinjaError(JinjaError),
TemplateNotFound
}
impl PartialEq for Error {
fn eq(&self, other: &Self) -> bool {
match (self, other) {
(Self::JinjaError(l0), Self::JinjaError(r0)) => {
l0.kind() == r0.kind()
},
Event::End(tag) => {
match tag {
TagEnd::Paragraph => {
render_component("paragraph_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::Heading(level) => {
render_component("heading_end", context! {
level => *level as u8
}, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::BlockQuote(block_quote_kind) => {
render_component("blockquote_end", context! {
kind => block_quote_kind
}, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::CodeBlock => {
render_component("codeblock_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::HtmlBlock => {
render_component("htmlblock_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::List(start) => {
render_component("list_end", context! {
start
}, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::Item => {
render_component("item_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::FootnoteDefinition => {
render_component("footnote_definition_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::DefinitionList => {
render_component("definitionlist_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::DefinitionListTitle => {
render_component("definitionlist_title_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::DefinitionListDefinition => {
render_component("definitionlist_definition_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::Table => {
render_component("table_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::TableHead => {
render_component("tablehead_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::TableRow => {
render_component("tablerow_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::TableCell => {
render_component("tablecell_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::Emphasis => {
render_component("emphasis_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::Strong => {
render_component("strong_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::Strikethrough => {
render_component("strikethrough_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::Superscript => {
render_component("superscript_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::Subscript => {
render_component("subscript_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::Link => {
render_component("link_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::Image => {
render_component("image_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
TagEnd::MetadataBlock(_metadata_block_kind) => {
render_component("metadata_block_end", Value::UNDEFINED, jinja_env)
.and_then(|s| Some(Event::Html(s.into())))
.or(Some(event))
},
}
},
Event::Text(_cow_str) => Some(event),
Event::Code(_cow_str) => Some(event),
Event::InlineMath(_cow_str) => Some(event),
Event::DisplayMath(_cow_str) => Some(event),
Event::Html(_cow_str) => Some(event),
Event::InlineHtml(_cow_str) => Some(event),
Event::FootnoteReference(_cow_str) => Some(event),
Event::SoftBreak => Some(event),
Event::HardBreak => Some(event),
Event::Rule => Some(event),
Event::TaskListMarker(_) => Some(event),
_ => core::mem::discriminant(self) == core::mem::discriminant(other),
}
});
let mut html = String::new();
pulldown_cmark::html::push_html(&mut html, parser);
Some(html)
}
}
fn md_preprocessor(md: &String, jinja_env: &Environment) -> String {
let re = Regex::new(r"\{\% *(.*)\((.*)\).*\%\}").unwrap();
let out = re.replace_all(md, |capture: &regex::Captures<'_>| {
let template = &capture[1];
let args = &capture[2];
match render_component(template, context! { args => parse_args(args)}, jinja_env){
Some(html) => html,
None => {
println!("ERROR: could not find template {}", template);
String::from("")
}
}
});
String::from(out)
pub struct Parser<'a> {
md: &'a str,
tree: Option<Tree<TreeEvent>>,
templates: &'a Vec<Template>,
jinja_env: Environment<'a>
}
impl<'a> Parser<'a> {
pub fn new(md: &'a str, templates: &'a Vec<Template>) -> Self {
let mut env = Environment::new();
for tmpl in templates.iter() {
tmpl.add_to_jinja_env(&mut env).unwrap();
};
fn render_component(component: &str, args: Value, jinja_env: &Environment) -> Option<String> {
// println!(" tag found: {component} <- {args}");
match jinja_env.get_template(&format!("components/{component}")) {
Ok(ding) => {
// match ding.render(context! { args => args }) {
match ding.render(args) {
Ok(html) => Some(html),
Err(err) => {
println!("ERROR: faild to render template: {component} ({err:?})");
None
Self {
md,
tree: None,
templates,
jinja_env: env
}
}
pub fn render(&mut self) -> Result<String, Error> {
let mut options = Options::empty();
options.insert(Options::ENABLE_TABLES);
options.insert(Options::ENABLE_FOOTNOTES);
options.insert(Options::ENABLE_STRIKETHROUGH);
options.insert(Options::ENABLE_TASKLISTS);
// options.insert(Options::ENABLE_SMART_PUNCTUATION);
// options.insert(Options::ENABLE_HEADING_ATTRIBUTES);
options.insert(Options::ENABLE_YAML_STYLE_METADATA_BLOCKS);
// options.insert(Options::ENABLE_PLUSES_DELIMITED_METADATA_BLOCKS);
// options.insert(Options::ENABLE_OLD_FOOTNOTES);
options.insert(Options::ENABLE_MATH);
options.insert(Options::ENABLE_GFM);
options.insert(Options::ENABLE_DEFINITION_LIST);
options.insert(Options::ENABLE_SUPERSCRIPT);
options.insert(Options::ENABLE_SUBSCRIPT);
options.insert(Options::ENABLE_WIKILINKS);
let md = self.md_preprocessor()?;
let mut parser = PulldownParser::new_ext(&md, options);
self.tree = Some(parser.to_event_tree());
let mut branch = Vec::new();
self.md_parser_children(&mut branch)
}
fn md_preprocessor(&self) -> Result<String, Error> {
let mut new = String::with_capacity(self.md.len());
let mut last_match = 0;
let re = Regex::new(r"\{\% *(.*)\((.*)\).*\%\}").unwrap();
for caps in re.captures_iter(self.md) {
let m = caps.get(0).unwrap();
new.push_str(&self.md[last_match..m.start()]);
let template = &caps[1];
let args = &caps[2];
new.push_str(&self.render_component(template, context! { args => parse_args(args)})?);
last_match = m.end();
}
new.push_str(&self.md[last_match..]);
Ok(new)
}
fn md_parser_children(&mut self, branch: &mut Vec<TreeEvent>) -> Result<String, Error> {
let mut content = String::new();
loop {
let event = self.tree.as_ref().unwrap().get_cur().unwrap();
let child_content = match self.tree.as_mut().unwrap().goto_first_child() {
Some(_) => {
branch.push(event.clone());
let content = self.md_parser_children(branch)?;
branch.pop();
self.tree.as_mut().unwrap().goto_parent();
content
},
None => String::new(),
};
content.push_str(&self.md_parser_event(branch, child_content)?);
if self.tree.as_mut().unwrap().goto_next() == None {
break;
}
},
Err(e) => {
match e.kind() {
minijinja::ErrorKind::TemplateNotFound => None,
_ => panic!("Failt to render component {}: {:?}", component, e),
}
},
}
Ok(content)
}
fn md_parser_event(&self, branch: &Vec<TreeEvent>, content: String) -> Result<String, Error> {
match self.tree.as_ref().unwrap().get_cur().ok_or(Error::NoCurrentEvent)? {
TreeEvent::Root => {
Ok(content)
},
TreeEvent::Paragraph => {
self.render_component("Paragraph", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::Heading { level, id, classes, attrs } => {
self.render_component("Heading", context! {
content,
parents => branch,
level => level as u8,
id, classes, attrs
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::BlockQuote(block_quote_kind) => {
self.render_component("BlockQuote", context! {
content,
parents => branch,
block_quote_kind
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::CodeBlock => {
self.render_component("CodeBlock", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::ContainerBlock(container_kind, _) => {
self.render_component("ContainerBlock", context! {
content,
parents => branch,
container_kind
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::HtmlBlock => {
self.render_component("HtmlBlock", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::List(_) => {
self.render_component("List", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::Item => {
self.render_component("Item", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::FootnoteDefinition(_) => {
self.render_component("FootnoteDefinition", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::DefinitionList => {
self.render_component("DefinitionList", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::DefinitionListTitle => {
self.render_component("DefinitionListTitle", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::DefinitionListDefinition => {
self.render_component("DefinitionListDefinition", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::Table(alignments) => {
self.render_component("Table", context! {
content,
parents => branch,
alignments
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::TableHead => {
self.render_component("TableHead", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::TableRow => {
self.render_component("TableRow", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::TableCell => {
self.render_component("TableCell", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::Emphasis => {
self.render_component("Emphasis", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::Strong => {
self.render_component("Strong", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::Strikethrough => {
self.render_component("Strikethrough", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::Superscript => {
self.render_component("Superscript", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::Subscript => {
self.render_component("Subscript", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::Link { link_type, dest_url, title, id } => {
let re = Regex::new(r"^%(?<tags>[^%]+)%").unwrap();
let (_, args) = match re.captures(&dest_url) {
Some(args) => {
(
dest_url.strip_prefix(args.get(0).unwrap().as_str()).unwrap().to_string(),
parse_args(args.name("tags").unwrap().as_str())
)
},
None => (dest_url.to_string(), Value::UNDEFINED)
};
self.render_component("Link", context! {
content,
parents => branch,
link_type, dest_url, title, id, args
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::Image { link_type, dest_url, title, id } => {
self.render_component("Image", context! {
content,
parents => branch,
link_type, dest_url, title, id
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::MetadataBlock(metadata_block_kind) => {
self.render_component("MetadataBlock", context! {
content,
parents => branch,
metadata_block_kind
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::Text(text) => {
self.render_component("Text", context! {
content,
parents => branch,
text
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::Code(_) => {
self.render_component("Code", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::InlineMath(_) => {
self.render_component("InlineMath", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::DisplayMath(_) => {
self.render_component("DisplayMath", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::Html(_) => {
self.render_component("Html", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::InlineHtml(_) => {
self.render_component("InlineHtml", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::FootnoteReference(_) => {
self.render_component("FootnoteReference", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::SoftBreak => {
self.render_component("SoftBreak", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::HardBreak => {
self.render_component("HardBreak", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::Rule => {
self.render_component("Rule", context! {
content,
parents => branch
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
TreeEvent::TaskListMarker(checked) => {
self.render_component("TaskListMarker", context! {
content,
parents => branch,
checked
}).or_else(|e| {
if e == Error::TemplateNotFound {
todo!()
} else {
Err(e)
}
})
},
}
}
fn render_component(&self, component: &str, args: Value) -> Result<String, Error> {
match self.jinja_env.get_template(&format!("components/{component}")) {
Ok(tmpl) => {
match tmpl.render(args) {
Ok(html) => Ok(html),
Err(err) => Err(Error::JinjaError(err)),
}
},
Err(e) => {
match e.kind() {
minijinja::ErrorKind::TemplateNotFound => Err(Error::TemplateNotFound),
_ => Err(Error::JinjaError(e)),
}
},
}
}
}