Merge pull request #328 from sunng87/feature/handlebars-upgrade
Update handlebars and some helpers
This commit is contained in:
commit
5e93decf6e
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@ -16,7 +16,7 @@ exclude = [
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[dependencies]
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clap = "2.24"
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handlebars = "0.26"
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handlebars = "0.27"
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serde = "1.0"
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serde_derive = "1.0"
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serde_json = "1.0"
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@ -1,8 +1,8 @@
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use std::path::Path;
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use std::collections::{VecDeque, BTreeMap};
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use std::collections::BTreeMap;
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use serde_json;
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use handlebars::{Handlebars, RenderError, RenderContext, Helper, Renderable};
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use handlebars::{Handlebars, RenderError, RenderContext, Helper, Renderable, Context};
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// Handlebars helper for navigation
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@ -11,31 +11,22 @@ pub fn previous(_h: &Helper, r: &Handlebars, rc: &mut RenderContext) -> Result<(
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debug!("[fn]: previous (handlebars helper)");
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debug!("[*]: Get data from context");
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// get value from context data
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// rc.get_path() is current json parent path, you should always use it like this
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// param is the key of value you want to display
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let chapters = rc.context()
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.navigate(rc.get_path(), &VecDeque::new(), "chapters")
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.to_owned();
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let chapters = rc.evaluate_absolute("chapters")
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.and_then(|c| {
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serde_json::value::from_value::<Vec<BTreeMap<String, String>>>(c.clone())
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.map_err(|_| RenderError::new("Could not decode the JSON data"))
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})?;
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let current = rc.context()
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.navigate(rc.get_path(), &VecDeque::new(), "path")
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.to_string()
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let current = rc.evaluate_absolute("path")?
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.as_str()
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.ok_or(RenderError::new("Type error for `path`, string expected"))?
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.replace("\"", "");
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debug!("[*]: Decode chapters from JSON");
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// Decode json format
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let decoded: Vec<BTreeMap<String, String>> = match serde_json::from_str(&chapters.to_string()) {
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Ok(data) => data,
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Err(_) => return Err(RenderError::new("Could not decode the JSON data")),
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};
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let mut previous: Option<BTreeMap<String, String>> = None;
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debug!("[*]: Search for current Chapter");
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// Search for current chapter and return previous entry
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for item in decoded {
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for item in chapters {
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match item.get("path") {
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Some(path) if !path.is_empty() => {
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@ -49,51 +40,41 @@ pub fn previous(_h: &Helper, r: &Handlebars, rc: &mut RenderContext) -> Result<(
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let mut previous_chapter = BTreeMap::new();
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// Chapter title
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match previous.get("name") {
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Some(n) => {
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debug!("[*]: Inserting title: {}", n);
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previous_chapter.insert("title".to_owned(), json!(n))
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},
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None => {
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debug!("[*]: No title found for chapter");
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return Err(RenderError::new("No title found for chapter in JSON data"));
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},
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};
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previous
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.get("name")
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.ok_or(RenderError::new("No title found for chapter in JSON data"))
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.and_then(|n| {
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previous_chapter.insert("title".to_owned(), json!(n));
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Ok(())
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})?;
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// Chapter link
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previous
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.get("path")
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.ok_or(RenderError::new("No path found for chapter in JSON data"))
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.and_then(|p| {
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Path::new(p)
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.with_extension("html")
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.to_str()
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.ok_or(RenderError::new("Link could not be converted to str"))
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.and_then(|p| {
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previous_chapter
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.insert("link".to_owned(), json!(p.replace("\\", "/")));
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Ok(())
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})
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})?;
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match previous.get("path") {
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Some(p) => {
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// Hack for windows who tends to use `\` as separator instead of `/`
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let path = Path::new(p).with_extension("html");
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debug!("[*]: Inserting link: {:?}", path);
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match path.to_str() {
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Some(p) => {
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previous_chapter.insert("link".to_owned(), json!(p.replace("\\", "/")));
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},
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None => return Err(RenderError::new("Link could not be converted to str")),
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}
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},
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None => return Err(RenderError::new("No path found for chapter in JSON data")),
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}
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debug!("[*]: Inject in context");
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// Inject in current context
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let updated_context = rc.context().extend(&previous_chapter);
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debug!("[*]: Render template");
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// Render template
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match _h.template() {
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Some(t) => {
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*rc.context_mut() = updated_context;
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t.render(r, rc)?;
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},
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None => return Err(RenderError::new("Error with the handlebars template")),
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}
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_h.template()
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.ok_or(RenderError::new("Error with the handlebars template"))
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.and_then(|t| {
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let mut local_rc = rc.with_context(Context::wraps(&previous_chapter));
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t.render(r, &mut local_rc)
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})?;
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}
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break;
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} else {
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previous = Some(item.clone());
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@ -102,7 +83,6 @@ pub fn previous(_h: &Helper, r: &Handlebars, rc: &mut RenderContext) -> Result<(
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_ => continue,
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}
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}
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Ok(())
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@ -115,29 +95,21 @@ pub fn next(_h: &Helper, r: &Handlebars, rc: &mut RenderContext) -> Result<(), R
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debug!("[fn]: next (handlebars helper)");
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debug!("[*]: Get data from context");
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// get value from context data
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// rc.get_path() is current json parent path, you should always use it like this
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// param is the key of value you want to display
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let chapters = rc.context()
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.navigate(rc.get_path(), &VecDeque::new(), "chapters")
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.to_owned();
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let current = rc.context()
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.navigate(rc.get_path(), &VecDeque::new(), "path")
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.to_string()
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let chapters = rc.evaluate_absolute("chapters")
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.and_then(|c| {
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serde_json::value::from_value::<Vec<BTreeMap<String, String>>>(c.clone())
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.map_err(|_| RenderError::new("Could not decode the JSON data"))
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})?;
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let current = rc.evaluate_absolute("path")?
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.as_str()
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.ok_or(RenderError::new("Type error for `path`, string expected"))?
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.replace("\"", "");
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debug!("[*]: Decode chapters from JSON");
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// Decode json format
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let decoded: Vec<BTreeMap<String, String>> = match serde_json::from_str(&chapters.to_string()) {
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Ok(data) => data,
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Err(_) => return Err(RenderError::new("Could not decode the JSON data")),
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};
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let mut previous: Option<BTreeMap<String, String>> = None;
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debug!("[*]: Search for current Chapter");
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// Search for current chapter and return previous entry
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for item in decoded {
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for item in chapters {
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match item.get("path") {
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@ -145,10 +117,9 @@ pub fn next(_h: &Helper, r: &Handlebars, rc: &mut RenderContext) -> Result<(), R
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if let Some(previous) = previous {
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let previous_path = match previous.get("path") {
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Some(p) => p,
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None => return Err(RenderError::new("No path found for chapter in JSON data")),
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};
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let previous_path = previous
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.get("path")
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.ok_or(RenderError::new("No path found for chapter in JSON data"))?;
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if previous_path == ¤t {
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@ -157,41 +128,33 @@ pub fn next(_h: &Helper, r: &Handlebars, rc: &mut RenderContext) -> Result<(), R
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// Create new BTreeMap to extend the context: 'title' and 'link'
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let mut next_chapter = BTreeMap::new();
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match item.get("name") {
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Some(n) => {
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debug!("[*]: Inserting title: {}", n);
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next_chapter.insert("title".to_owned(), json!(n));
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},
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None => return Err(RenderError::new("No title found for chapter in JSON data")),
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}
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item.get("name")
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.ok_or(RenderError::new("No title found for chapter in JSON data"))
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.and_then(|n| {
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next_chapter.insert("title".to_owned(), json!(n));
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Ok(())
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})?;
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let link = Path::new(path).with_extension("html");
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debug!("[*]: Inserting link: {:?}", link);
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match link.to_str() {
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Some(l) => {
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// Hack for windows who tends to use `\` as separator instead of `/`
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next_chapter.insert("link".to_owned(), json!(l.replace("\\", "/")));
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},
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None => return Err(RenderError::new("Link could not converted to str")),
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}
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debug!("[*]: Inject in context");
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// Inject in current context
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let updated_context = rc.context().extend(&next_chapter);
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Path::new(path)
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.with_extension("html")
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.to_str()
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.ok_or(RenderError::new("Link could not converted to str"))
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.and_then(|l| {
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debug!("[*]: Inserting link: {:?}", l);
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// Hack for windows who tends to use `\` as separator instead of `/`
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next_chapter.insert("link".to_owned(), json!(l.replace("\\", "/")));
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Ok(())
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})?;
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debug!("[*]: Render template");
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// Render template
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match _h.template() {
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Some(t) => {
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*rc.context_mut() = updated_context;
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t.render(r, rc)?;
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},
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None => return Err(RenderError::new("Error with the handlebars template")),
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}
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_h.template()
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.ok_or(RenderError::new("Error with the handlebars template"))
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.and_then(|t| {
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let mut local_rc = rc.with_context(Context::wraps(&next_chapter));
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t.render(r, &mut local_rc)
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})?;
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break;
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}
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}
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@ -1,5 +1,5 @@
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use std::path::Path;
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use std::collections::{VecDeque, BTreeMap};
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use std::collections::BTreeMap;
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use serde_json;
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use handlebars::{Handlebars, HelperDef, RenderError, RenderContext, Helper};
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@ -15,21 +15,21 @@ impl HelperDef for RenderToc {
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// get value from context data
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// rc.get_path() is current json parent path, you should always use it like this
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// param is the key of value you want to display
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let chapters = rc.context()
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.navigate(rc.get_path(), &VecDeque::new(), "chapters")
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.to_owned();
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let current = rc.context()
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.navigate(rc.get_path(), &VecDeque::new(), "path")
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.to_string()
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let chapters = rc.evaluate_absolute("chapters")
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.and_then(|c| {
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serde_json::value::from_value::<Vec<BTreeMap<String, String>>>(c.clone())
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.map_err(|_| RenderError::new("Could not decode the JSON data"))
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})?;
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let current = rc.evaluate_absolute("path")?
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.as_str()
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.ok_or(RenderError::new("Type error for `path`, string expected"))?
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.replace("\"", "");
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rc.writer.write_all("<ul class=\"chapter\">".as_bytes())?;
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// Decode json format
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let decoded: Vec<BTreeMap<String, String>> = serde_json::from_str(&chapters.to_string()).unwrap();
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rc.writer.write_all("<ul class=\"chapter\">".as_bytes())?;
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let mut current_level = 1;
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for item in decoded {
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for item in chapters {
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// Spacer
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if item.get("spacer").is_some() {
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