From 0fd8055dd0c7f755d39743f5588d9ac4f6461019 Mon Sep 17 00:00:00 2001
From: Ilan Cosman <ilancosman@gmail.com>
Date: Thu, 26 Aug 2021 13:47:43 -0700
Subject: [PATCH] Use visible string length (fixes #134)

---
 functions/_tide_prompt.fish |  7 +++----
 functions/_tide_pwd.fish    | 23 ++++++++++-------------
 2 files changed, 13 insertions(+), 17 deletions(-)

diff --git a/functions/_tide_prompt.fish b/functions/_tide_prompt.fish
index 35b6a345..c3a02ef0 100644
--- a/functions/_tide_prompt.fish
+++ b/functions/_tide_prompt.fish
@@ -11,8 +11,8 @@ function _tide_prompt
 
         echo $right_prompt[2]
 
-        set -lx dist_btwn_sides (math $COLUMNS + 5 - ( # Regex removes color. 5 = @PWD@ length which will be replaced
-            string replace -ar '\e(\[[\d;]*|\(B\e\[)m(\co)?' '' "$left_prompt[1]""$right_prompt[1]" | string length))
+        # 5 = @PWD@ length which will be replaced
+        set -lx dist_btwn_sides (math $COLUMNS + 5 - (string length --visible "$left_prompt[1]""$right_prompt[1]"))
         printf '%s' (string replace @PWD@ (_tide_pwd) "$left_prompt[1]") $_tide_prompt_and_frame_color
 
         string repeat --no-newline --max (math max 0, $dist_btwn_sides - $pwd_length) $tide_prompt_icon_connection
@@ -20,8 +20,7 @@ function _tide_prompt
     else
         echo $right_prompt[1]
 
-        set -lx dist_btwn_sides (math $COLUMNS + 5 -$tide_prompt_min_cols - (
-            string replace -ar '\e(\[[\d;]*|\(B\e\[)m(\co)?' '' "$left_prompt[1]""$right_prompt[1]" | string length))
+        set -lx dist_btwn_sides (math $COLUMNS + 5 -$tide_prompt_min_cols - (string length --visible "$left_prompt[1]""$right_prompt[1]"))
         string replace @PWD@ (_tide_pwd) "$left_prompt[1] "
     end
 end
diff --git a/functions/_tide_pwd.fish b/functions/_tide_pwd.fish
index b1ad9263..79d0e90e 100644
--- a/functions/_tide_pwd.fish
+++ b/functions/_tide_pwd.fish
@@ -1,14 +1,5 @@
 function _tide_pwd
     set -l split_pwd (string replace -- $HOME '~' $PWD | string split /)
-    set -l split_pwd_for_length $split_pwd
-
-    # Anchor first and last directories (which may be the same)
-    if test -n "$split_pwd[1]" # ~/foo/bar, hightlight ~
-        set split_pwd_for_output $_tide_color_anchors$split_pwd[1]$_tide_reset_to_color_dirs $split_pwd[2..]
-    else # /foo/bar, hightlight foo not empty string
-        set split_pwd_for_output '' $_tide_color_anchors$split_pwd[2]$_tide_reset_to_color_dirs $split_pwd[3..]
-    end
-    set split_pwd_for_output[-1] $_tide_color_anchors$split_pwd[-1]$_tide_reset_to_color_dirs
 
     if not test -w $PWD
         set -g tide_pwd_icon $tide_pwd_icon_unwritable' '
@@ -18,7 +9,15 @@ function _tide_pwd
         set -g tide_pwd_icon $tide_pwd_icon' '
     end
 
-    set -g pwd_length (string length "$tide_pwd_icon"(string join / $split_pwd_for_length))
+    # Anchor first and last directories (which may be the same)
+    if test -n "$split_pwd[1]" # ~/foo/bar, hightlight ~
+        set split_pwd_for_output "$_tide_reset_to_color_dirs$tide_pwd_icon"$_tide_color_anchors$split_pwd[1]$_tide_reset_to_color_dirs $split_pwd[2..]
+    else # /foo/bar, hightlight foo not empty string
+        set split_pwd_for_output "$_tide_reset_to_color_dirs$tide_pwd_icon"'' $_tide_color_anchors$split_pwd[2]$_tide_reset_to_color_dirs $split_pwd[3..]
+    end
+    set split_pwd_for_output[-1] $_tide_color_anchors$split_pwd[-1]$_tide_reset_to_color_dirs
+
+    string join / $split_pwd_for_output | string length --visible | read -g pwd_length
 
     i=1 for dir_section in $split_pwd[2..-2]
         set -l parent_dir (string join -- / $split_pwd[..$i] | string replace '~' $HOME) # Uses i before increment
@@ -33,12 +32,10 @@ function _tide_pwd
                     set -l truncated (string sub --length $truncation_length -- $dir_section) &&
                     test $truncated != $dir_section -a (count $parent_dir/$truncated*/) -gt 1
             end
-            set split_pwd_for_length[$i] $truncated
             set split_pwd_for_output[$i] $_tide_color_truncated_dirs$truncated$_tide_reset_to_color_dirs
-            set pwd_length (string length "$tide_pwd_icon"(string join / $split_pwd_for_length)) # Update length
+            string join / $split_pwd_for_output | string length --visible | read -g pwd_length
         end
     end
 
-    printf '%s' $_tide_reset_to_color_dirs $tide_pwd_icon
     string join -- / $split_pwd_for_output
 end