Share tab width definitions.

helix-core/src/indent.rs

@@ -4,7 +4,7 @@ use crate::{
     Rope, RopeSlice, State,
 };
 
-const TAB_WIDTH: usize = 4;
+pub const TAB_WIDTH: usize = 4;
 
 fn indent_level_for_line(line: RopeSlice) -> usize {
     let mut len = 0;

helix-core/src/lib.rs

@@ -1,7 +1,7 @@
 #![allow(unused)]
 pub mod graphemes;
 mod history;
-mod indent;
+pub mod indent;
 pub mod macros;
 mod position;
 pub mod register;

helix-term/src/editor.rs

@@ -1,5 +1,5 @@
 use clap::ArgMatches as Args;
-use helix_core::{state::Mode, syntax::HighlightEvent, Range, State};
+use helix_core::{indent::TAB_WIDTH, state::Mode, syntax::HighlightEvent, Range, State};
 use helix_view::{commands, keymap, View};
 
 use std::{
@@ -24,8 +24,6 @@ use crossterm::{
 
 use tui::{backend::CrosstermBackend, buffer::Buffer as Surface, layout::Rect, style::Style};
 
-const TAB_WIDTH: usize = 4;
-
 type Terminal = tui::Terminal<CrosstermBackend<std::io::Stdout>>;
 
 static EX: smol::Executor = smol::Executor::new();

helix-view/src/commands.rs

@@ -1,5 +1,6 @@
 use helix_core::{
     graphemes,
+    indent::TAB_WIDTH,
     regex::Regex,
     register, selection,
     state::{Direction, Granularity, Mode, State},
@@ -541,8 +542,6 @@ pub fn paste(view: &mut View, _count: usize) {
     }
 }
 
-const TAB_WIDTH: usize = 4;
-
 fn get_lines(view: &View) -> Vec<usize> {
     let mut lines = Vec::new();
 

helix-view/src/view.rs

@@ -5,6 +5,7 @@ use std::{borrow::Cow, path::PathBuf};
 use crate::theme::Theme;
 use helix_core::{
     graphemes::{grapheme_width, RopeGraphemes},
+    indent::TAB_WIDTH,
     History, Position, RopeSlice, State,
 };
 use tui::layout::Rect;
@@ -78,8 +79,7 @@ impl View {
 
         for grapheme in RopeGraphemes::new(&line_slice) {
             if grapheme == "\t" {
-                // TODO: this should be const TAB_WIDTH
+                col += TAB_WIDTH;
-                col += 4;
             } else {
                 let grapheme = Cow::from(grapheme);
                 col += grapheme_width(&grapheme);