Undefined control sequence \e

[petros]

Add the following in a wiki page

GIT_PS1_SHOWDIRTYSTATE=true
export PS1='\[\e[1;33m\]$(__git_ps1)'$PS1

when the page is rendered you get "Undefined control sequence \e"

Maybe this is caused by MathJax

[mbaltaks]

I'm seeing the same thing.

The following just won't render correctly in a github wiki page, with either code block syntax.

function parse_git_dirty
{
  [[ $(git status 2> /dev/null | tail -n1) != "nothing to commit (working directory clean)" ]] && echo "*"
}

export PS1='\u@\h:\w$(__git_ps1 "[\[\e[0;32m\]%s\[\e[0m\]\[\e[0;31m\]$(parse_git_dirty)\[\e[0m\]]")$ '

[awbush]

I'm having this issue too. Would have thought that the point of code blocks is to disable any parsing, as is done in other markdown parsers.

[yangchenyun]

Me, too. It seems escaped character will have this issue.

var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^\[\]]*\]|['"][^'"]*['"]|[^\[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?((?:.|\r|\n)*)/g,

Will alert
Undefined control sequence \( and Undefined control sequence \[

[wch]

I get weird math formulas when I do this, but if I put a space between the first backslash and opening square bracket, it displays properly (except for the extra space). Is there a way to work around this? I'm trying to put a bash prompt command on a github wiki page.

Bad:

export PS1='\[\e[1;33m\]$(__git_ps1)'$PS1

OK:

export PS1='\ [\e[1;33m\]$(__git_ps1)'$PS1

[atmos]

@tanoku is there a way to handle this without the space? It still inserts mathematical formulas.