Module ruby 

ruby literal encoder.

encodes untrusted strings for safe embedding in ruby source literals.

• for_ruby_string — safe for ruby double-quoted string literals ("...")

encoding rules

the encoder uses ruby’s native escape syntax:

• named escapes: \a, \b, \t, \n, \v, \f, \r, \e, \\
• double quote → \"
• hash sign → \# (prevents #{}, #$, #@ interpolation)
• other C0 controls and DEL → \xHH
• unicode non-characters → space
• non-ASCII unicode passes through (ruby 2.0+ source files are UTF-8 by default)

the output is safe for double-quoted string literals only. ruby single-quoted strings ('...') use different escape rules and are not covered by this encoder.

Functions

for_ruby_string

encodes input for safe embedding in a ruby double-quoted string literal ("...").

write_ruby_string

writes the ruby-string-encoded form of input to out.