From 404406ac6a1c75a28efce3009012d64a6ea0ada3 Mon Sep 17 00:00:00 2001
From: Alex Boehm <alexb@ozrunways.com>
Date: Thu, 12 May 2022 19:07:52 +0930
Subject: [PATCH] Add text-width to config.toml

---
 book/src/configuration.md        |  1 +
 helix-core/src/syntax.rs         |  2 +-
 helix-core/src/wrap.rs           |  4 ++--
 helix-term/src/commands/typed.rs | 20 ++++++++------------
 helix-view/src/editor.rs         |  3 +++
 5 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/book/src/configuration.md b/book/src/configuration.md
index 7514a3d0f..547e43509 100644
--- a/book/src/configuration.md
+++ b/book/src/configuration.md
@@ -57,6 +57,7 @@ on unix operating systems.
 | `rulers` | List of column positions at which to display the rulers. Can be overridden by language specific `rulers` in `languages.toml` file. | `[]` |
 | `bufferline` | Renders a line at the top of the editor displaying open buffers. Can be `always`, `never` or `multiple` (only shown if more than one buffer is in use) | `never` |
 | `color-modes` | Whether to color the mode indicator with different colors depending on the mode itself | `false` |
+| `text-width` | Set the maximum line width for text wrapping with :reflow | `80` |
 
 ### `[editor.statusline]` Section
 
diff --git a/helix-core/src/syntax.rs b/helix-core/src/syntax.rs
index ca4da3dcd..d5023c2ac 100644
--- a/helix-core/src/syntax.rs
+++ b/helix-core/src/syntax.rs
@@ -82,7 +82,7 @@ pub struct LanguageConfiguration {
     pub shebangs: Vec<String>, // interpreter(s) associated with language
     pub roots: Vec<String>,        // these indicate project roots <.git, Cargo.toml>
     pub comment_token: Option<String>,
-    pub max_line_length: Option<usize>,
+    pub text_width: Option<usize>,
 
     #[serde(default, skip_serializing, deserialize_with = "deserialize_lsp_config")]
     pub config: Option<serde_json::Value>,
diff --git a/helix-core/src/wrap.rs b/helix-core/src/wrap.rs
index eabc47d47..2ba8d173e 100644
--- a/helix-core/src/wrap.rs
+++ b/helix-core/src/wrap.rs
@@ -2,6 +2,6 @@ use smartstring::{LazyCompact, SmartString};
 
 /// Given a slice of text, return the text re-wrapped to fit it
 /// within the given width.
-pub fn reflow_hard_wrap(text: &str, max_line_len: usize) -> SmartString<LazyCompact> {
-    textwrap::refill(text, max_line_len).into()
+pub fn reflow_hard_wrap(text: &str, text_width: usize) -> SmartString<LazyCompact> {
+    textwrap::refill(text, text_width).into()
 }
diff --git a/helix-term/src/commands/typed.rs b/helix-term/src/commands/typed.rs
index 0cc1b7432..7fbd7894f 100644
--- a/helix-term/src/commands/typed.rs
+++ b/helix-term/src/commands/typed.rs
@@ -1740,30 +1740,26 @@ fn reflow(
     }
 
     let scrolloff = cx.editor.config().scrolloff;
+    let cfg_text_width: usize = cx.editor.config().text_width;
     let (view, doc) = current!(cx.editor);
 
-    const DEFAULT_MAX_LEN: usize = 79;
-
-    // Find the max line length by checking the following sources in order:
+    // Find the text_width by checking the following sources in order:
     //   - The passed argument in `args`
-    //   - The configured max_line_len for this language in languages.toml
-    //   - The const default we set above
-    let max_line_len: usize = args
+    //   - The configured text-width for this language in languages.toml
+    //   - The configured text-width in the config.toml
+    let text_width: usize = args
         .get(0)
         .map(|num| num.parse::<usize>())
         .transpose()?
-        .or_else(|| {
-            doc.language_config()
-                .and_then(|config| config.max_line_length)
-        })
-        .unwrap_or(DEFAULT_MAX_LEN);
+        .or_else(|| doc.language_config().and_then(|config| config.text_width))
+        .unwrap_or(cfg_text_width);
 
     let rope = doc.text();
 
     let selection = doc.selection(view.id);
     let transaction = Transaction::change_by_selection(rope, selection, |range| {
         let fragment = range.fragment(rope.slice(..));
-        let reflowed_text = helix_core::wrap::reflow_hard_wrap(&fragment, max_line_len);
+        let reflowed_text = helix_core::wrap::reflow_hard_wrap(&fragment, text_width);
 
         (range.from(), range.to(), Some(reflowed_text))
     });
diff --git a/helix-view/src/editor.rs b/helix-view/src/editor.rs
index 042f5bdb4..6683da2a5 100644
--- a/helix-view/src/editor.rs
+++ b/helix-view/src/editor.rs
@@ -241,6 +241,8 @@ pub struct Config {
     pub auto_format: bool,
     /// Automatic save on focus lost. Defaults to false.
     pub auto_save: bool,
+    /// Set a global text_width
+    pub text_width: usize,
     /// Time in milliseconds since last keypress before idle timers trigger.
     /// Used for autocompletion, set to 0 for instant. Defaults to 400ms.
     #[serde(
@@ -764,6 +766,7 @@ impl Default for Config {
             indent_guides: IndentGuidesConfig::default(),
             color_modes: false,
             soft_wrap: SoftWrap::default(),
+            text_width: 80,
         }
     }
 }