erb - Ruby Templating
erb [--version] [-UPdnvx] [-E ext[]]:int [-S level] [-T mode] [-r library] [--] [file ...]
ERB(1) UNIX ERB(1) NAME erb - Ruby Templating SYNOPSIS erb [--version] [-UPdnvx] [-E ext[]]:int [-S level] [-T mode] [-r library] [--] [file ...] DESCRIPTION erb is a command line front-end for "ERB" library, which is an imple- mentation of eRuby. ERB provides an easy to use but powerful templating system for Ruby. Using ERB, actual Ruby code can be added to any plain text document for the purposes of generating document information details and/or flow control. erb is a part of Ruby. OPTIONS --version Prints the version of . -E external[]:internal --encoding external[]:internal Specifies the default value(s) for external encodings and inter- nal encoding. Values should be separated with colon (:). You can omit the one for internal encodings, then the value ("Encoding.default_internal") will be nil. -P Evaluates lines starting with "%" as Ruby code and removes the tailing EOLs. -S level Specifies the safe level in which eRuby script will run. -T mode Specifies trim mode (default 0). mode can be one of 0 EOL remains after the embedded ruby script is evaluated. 1 EOL is removed if the line ends with "%>". 2 EOL is removed if the line starts with "<%" and ends with "%>". - EOL is removed if the line ends with "-%>". And leading white- spaces are removed if the erb directive starts with "<%-". -U can be one of Sets the default value for internal encodings ("Encoding.default_internal") to UTF-8. -d --debug Turns on debug mode. "$DEBUG" will be set to true. -h --help Prints a summary of the options. -n Used with -x. Prepends the line number to each line in the out- put. -v Enables verbose mode. "$VERBOSE" will be set to true. -x Converts the eRuby script into Ruby script and prints it without line numbers. EXAMPLES Here is an eRuby script <?xml version="1.0" ?> <% require 'prime' -%> <erb-example> <calc><%= 1+1 %></calc> <var><%= __FILE__ %></var> <library><%= Prime.each(10).to_a.join(", ") %></library> </erb-example> Command "% erb -T - example.erb" prints <?xml version="1.0" ?> <erb-example> <calc>2</calc> <var>example.erb</var> <library>2, 3, 5, 7</library> </erb-example> ATTRIBUTES See attributes(5) for descriptions of the following attributes: +---------------+------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+------------------+ |Availability | runtime/ruby-21 | +---------------+------------------+ |Stability | Uncommitted | +---------------+------------------+ SEE ALSO ruby(1). And see ri(1) documentation for "ERB" class. REPORTING BUGS Security vulnerabilities should be reported via an email to <secu- rity@ruby-lang.org> Reported problems will be published after being fixed. And you can report other bugs and feature requests via the Ruby Issue Tracking System (http://bugs.ruby-lang.org). Do not report security vulnerabilities via the system because it publishes the vulnerabilities immediately. AUTHORS Written by Masatoshi SEKI. NOTES This software was built from source available at https://java.net/projects/solaris-userland. The original community source was downloaded from http://cache.ruby- lang.org/pub/ruby/2.1/ruby-2.1.6.tar.gz Further information about this software can be found on the open source community website at http://www.ruby-lang.org/. November 7, 2012 Ruby Programmers Reference Guide ERB(1)