adding battery extension to the prompt returns error

[Soneji]

Describe Your Issue

What is happening?
Battery extension not working in prompt.

Most issues are best explained with a screenshot. Please share one if you can!

Have you tried to debug or fix it?

zsh returns this on every line prompt_battery:27: bad math expression: illegal character: ^[

reading the powerlevel9k.zsh-theme and prompt_powerlevel9k_setup file i see that it is this line causing the issue: bat_percent=$(echo $raw_data | grep -o '[0-9]*%' | sed 's/%//')

Environment Information

This information will help us understand your configuration.

• What version of ZSH are you using? You can use zsh --version to see this.
  zsh 5.6.2 (x86_64-apple-darwin18.0.0)
• Do you use a ZSH framework (e.g., Oh-My-ZSH, Antigen)?
  Oh-My-ZSH
• How did you install P9k (cloning the repo, by tarball, a package from your OS, etc.,)?
  Clone from github to ~/.oh-my-zsh/custom/themes/powerlevel9k
• What version of P9k are you using?
  Latest? Just cloned it today
• Which terminal emulator do you use?
  Standard macOS one

[Soneji]

ccat ~/.zshrc                                                                                                                                                                22:24:35
# If you come from bash you might have to change your $PATH.
# export PATH=$HOME/bin:/usr/local/bin:$PATH

# Path to your oh-my-zsh installation.
export ZSH="/Users/me/.oh-my-zsh"

# Set name of the theme to load --- if set to "random", it will
# load a random theme each time oh-my-zsh is loaded, in which case,
# to know which specific one was loaded, run: echo $RANDOM_THEME
# See https://github.com/robbyrussell/oh-my-zsh/wiki/Themes
#ZSH_THEME="avit"
ZSH_THEME="powerlevel9k/powerlevel9k"

# Set list of themes to pick from when loading at random
# Setting this variable when ZSH_THEME=random will cause zsh to load
# a theme from this variable instead of looking in ~/.oh-my-zsh/themes/
# If set to an empty array, this variable will have no effect.
# ZSH_THEME_RANDOM_CANDIDATES=( "robbyrussell" "agnoster" )

# Uncomment the following line to use case-sensitive completion.
# CASE_SENSITIVE="true"

# Uncomment the following line to use hyphen-insensitive completion.
# Case-sensitive completion must be off. _ and - will be interchangeable.
# HYPHEN_INSENSITIVE="true"

# Uncomment the following line to disable bi-weekly auto-update checks.
# DISABLE_AUTO_UPDATE="true"

# Uncomment the following line to change how often to auto-update (in days).
# export UPDATE_ZSH_DAYS=13

# Uncomment the following line to disable colors in ls.
# DISABLE_LS_COLORS="true"

# Uncomment the following line to disable auto-setting terminal title.
# DISABLE_AUTO_TITLE="true"

# Uncomment the following line to enable command auto-correction.
# ENABLE_CORRECTION="true"

# Uncomment the following line to display red dots whilst waiting for completion.
# COMPLETION_WAITING_DOTS="true"

# Uncomment the following line if you want to disable marking untracked files
# under VCS as dirty. This makes repository status check for large repositories
# much, much faster.
# DISABLE_UNTRACKED_FILES_DIRTY="true"

# Uncomment the following line if you want to change the command execution time
# stamp shown in the history command output.
# You can set one of the optional three formats:
# "mm/dd/yyyy"|"dd.mm.yyyy"|"yyyy-mm-dd"
# or set a custom format using the strftime function format specifications,
# see 'man strftime' for details.
# HIST_STAMPS="mm/dd/yyyy"

# Would you like to use another custom folder than $ZSH/custom?
# ZSH_CUSTOM=/path/to/new-custom-folder

# Which plugins would you like to load?
# Standard plugins can be found in ~/.oh-my-zsh/plugins/*
# Custom plugins may be added to ~/.oh-my-zsh/custom/plugins/
# Example format: plugins=(rails git textmate ruby lighthouse)
# Add wisely, as too many plugins slow down shell startup.
plugins=(
  git
)

source $ZSH/oh-my-zsh.sh

# User configuration

# export MANPATH="/usr/local/man:$MANPATH"

# You may need to manually set your language environment
# export LANG=en_US.UTF-8

# Preferred editor for local and remote sessions
# if [[ -n $SSH_CONNECTION ]]; then
#   export EDITOR='vim'
# else
#   export EDITOR='mvim'
# fi

# Compilation flags
# export ARCHFLAGS="-arch x86_64"

# ssh
# export SSH_KEY_PATH="~/.ssh/rsa_id"

# Set personal aliases, overriding those provided by oh-my-zsh libs,
# plugins, and themes. Aliases can be placed here, though oh-my-zsh
# users are encouraged to define aliases within the ZSH_CUSTOM folder.
# For a full list of active aliases, run `alias`.
#
# Example aliases
# alias zshconfig="mate ~/.zshrc"
# alias ohmyzsh="mate ~/.oh-my-zsh"

if [ -f ~/.bash_aliases ]; then
    . ~/.bash_aliases
fi

#if type brew &>/dev/null; then
#  FPATH=$(brew --prefix)/share/zsh/site-functions:$FPATH
#fi

source /usr/local/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh

# Customise the Powerlevel9k prompts
POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(
	dir
	custom_javascript 
	vcs
	newline
	status
)
POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS=(
	time
	battery
)
POWERLEVEL9K_PROMPT_ADD_NEWLINE=true
# Create a custom JavaScript prompt section
POWERLEVEL9K_CUSTOM_JAVASCRIPT="echo -n '\ue781' Hacker"
POWERLEVEL9K_CUSTOM_JAVASCRIPT_FOREGROUND="black"
POWERLEVEL9K_CUSTOM_JAVASCRIPT_BACKGROUND="yellow"
# Load Nerd Fonts with Powerlevel9k theme for Zsh
POWERLEVEL9K_MODE='nerdfont-complete'
POWERLEVEL9K_BATTERY_STAGES="▁▂▃▄▅▆▇█"



neofetch

[paleite]

I just submitted a PR which should hopefully fix this: #1184