Merge pull request #736 from dualscyther/segments/dir/absolute-truncation

Add absolute truncation option to dir segment

README.md

@@ -375,6 +375,7 @@ Customizations available are:
 | Strategy Name | Description |
 |---------------|-------------|
 |Default|Truncate whole directories from left. How many is defined by `POWERLEVEL9K_SHORTEN_DIR_LENGTH`|
+|`truncate_absolute_chars`|Truncates an absolute number of characters from the left such that the number of characters that your path displays (with or without `POWERLEVEL9K_SHORTEN_DELIMITER`) is no more than `POWERLEVEL9K_SHORTEN_DIR_LENGTH` + the length of `POWERLEVEL9K_SHORTEN_DELIMITER` |
 |`truncate_middle`|Truncates the middle part of a folder. E.g. you are in a folder named `~/MySuperProjects/AwesomeFiles/BoringOffice`, then it will truncated to `~/MyS..cts/Awe..les/BoringOffice`, if `POWERLEVEL9K_SHORTEN_DIR_LENGTH=3` is also set (controls the amount of characters to be left).|
 |`truncate_from_right`|Just leaves the beginning of a folder name untouched. E.g. your folders will be truncated like so: "/ro../Pr../office". How many characters will be untouched is controlled by `POWERLEVEL9K_SHORTEN_DIR_LENGTH`.|
 |`truncate_with_package_name`|Search for a `package.json` or `composer.json` and prints the `name` field to abbreviate the directory path. The precedence and/or files could be set by `POWERLEVEL9K_DIR_PACKAGE_FILES=(package.json composer.json)`. If you have [jq](https://stedolan.github.io/jq/) installed, it will dramatically improve the speed of this strategy.|

powerlevel9k.zsh-theme

@@ -728,6 +728,11 @@ prompt_dir() {
     set_default POWERLEVEL9K_SHORTEN_DELIMITER $'\U2026'
 
     case "$POWERLEVEL9K_SHORTEN_STRATEGY" in
+      truncate_absolute_chars)
+        if [ ${#current_path} -gt $(( $POWERLEVEL9K_SHORTEN_DIR_LENGTH + ${#POWERLEVEL9K_SHORTEN_DELIMITER} )) ]; then
+          current_path=$POWERLEVEL9K_SHORTEN_DELIMITER${current_path:(-POWERLEVEL9K_SHORTEN_DIR_LENGTH)}
+        fi
+      ;;
       truncate_middle)
         current_path=$(echo "$current_path" | sed $SED_EXTENDED_REGEX_PARAMETER "s/([^/]{$POWERLEVEL9K_SHORTEN_DIR_LENGTH})[^/]+([^/]{$POWERLEVEL9K_SHORTEN_DIR_LENGTH})\//\1$POWERLEVEL9K_SHORTEN_DELIMITER\2\//g")
       ;;