Add tests for odd headline levels.

src/compare/compare.rs

@@ -6,9 +6,9 @@ use crate::compare::parse::emacs_parse_file_org_document;
 use crate::compare::parse::get_emacs_version;
 use crate::compare::parse::get_org_mode_version;
 use crate::compare::sexp::sexp;
+use crate::context::GlobalSettings;
+use crate::context::LocalFileAccessInterface;
 use crate::parser::parse_with_settings;
-use crate::GlobalSettings;
-use crate::LocalFileAccessInterface;
 
 pub fn run_anonymous_compare<P: AsRef<str>>(
     org_contents: P,

src/compare/parse.rs

@@ -1,7 +1,8 @@
 use std::path::Path;
 use std::process::Command;
 
-use crate::GlobalSettings;
+use crate::context::HeadlineLevelFilter;
+use crate::settings::GlobalSettings;
 
 /// Generate elisp to configure org-mode parsing settings
 ///
@@ -12,7 +13,15 @@ fn global_settings_elisp(global_settings: &GlobalSettings) -> String {
     if global_settings.list_allow_alphabetical {
         ret += "(setq org-list-allow-alphabetical t)\n"
     }
-    ret += format!("(setq-default tab-width {})", global_settings.tab_width).as_str();
+    if global_settings.tab_width != crate::settings::DEFAULT_TAB_WIDTH {
+        ret += format!("(setq-default tab-width {})", global_settings.tab_width).as_str();
+    }
+    if global_settings.odd_levels_only != HeadlineLevelFilter::default() {
+        ret += match global_settings.odd_levels_only {
+            HeadlineLevelFilter::Odd => "(setq org-odd-levels-only t)\n",
+            HeadlineLevelFilter::OddEven => "(setq org-odd-levels-only nil)\n",
+        };
+    }
     ret
 }
 

src/context/global_settings.rs

@@ -29,6 +29,8 @@ pub struct GlobalSettings<'g, 's> {
     pub odd_levels_only: HeadlineLevelFilter,
 }
 
+pub const DEFAULT_TAB_WIDTH: IndentationLevel = 8;
+
 impl<'g, 's> GlobalSettings<'g, 's> {
     fn new() -> GlobalSettings<'g, 's> {
         GlobalSettings {
@@ -39,8 +41,8 @@ impl<'g, 's> GlobalSettings<'g, 's> {
             in_progress_todo_keywords: BTreeSet::new(),
             complete_todo_keywords: BTreeSet::new(),
             list_allow_alphabetical: false,
-            tab_width: 8,
-            odd_levels_only: HeadlineLevelFilter::OddEven,
+            tab_width: DEFAULT_TAB_WIDTH,
+            odd_levels_only: HeadlineLevelFilter::default(),
         }
     }
 }
@@ -51,8 +53,14 @@ impl<'g, 's> Default for GlobalSettings<'g, 's> {
     }
 }
 
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, PartialEq)]
 pub enum HeadlineLevelFilter {
     Odd,
     OddEven,
 }
+
+impl Default for HeadlineLevelFilter {
+    fn default() -> Self {
+        HeadlineLevelFilter::OddEven
+    }
+}

src/context/mod.rs

@@ -26,5 +26,6 @@ pub use file_access_interface::FileAccessInterface;
 pub use file_access_interface::LocalFileAccessInterface;
 pub use global_settings::GlobalSettings;
 pub use global_settings::HeadlineLevelFilter;
+pub use global_settings::DEFAULT_TAB_WIDTH;
 pub(crate) use list::List;
 pub(crate) use parser_with_context::parser_with_context;

src/lib.rs

@@ -11,6 +11,10 @@ mod iter;
 pub mod parser;
 pub mod types;
 
-pub use context::FileAccessInterface;
-pub use context::GlobalSettings;
-pub use context::LocalFileAccessInterface;
+pub mod settings {
+    pub use crate::context::FileAccessInterface;
+    pub use crate::context::GlobalSettings;
+    pub use crate::context::HeadlineLevelFilter;
+    pub use crate::context::LocalFileAccessInterface;
+    pub use crate::context::DEFAULT_TAB_WIDTH;
+}

src/main.rs

@@ -5,8 +5,8 @@ use std::path::Path;
 
 use ::organic::parser::parse;
 use organic::parser::parse_with_settings;
-use organic::GlobalSettings;
-use organic::LocalFileAccessInterface;
+use organic::settings::GlobalSettings;
+use organic::settings::LocalFileAccessInterface;
 
 #[cfg(feature = "tracing")]
 use crate::init_tracing::init_telemetry;

src/parser/in_buffer_settings.rs

@@ -11,8 +11,8 @@ use super::OrgSource;
 use crate::context::HeadlineLevelFilter;
 use crate::error::CustomError;
 use crate::error::Res;
+use crate::settings::GlobalSettings;
 use crate::types::Keyword;
-use crate::GlobalSettings;
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
 pub(crate) fn scan_for_in_buffer_settings<'s>(