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## Here is an example for Ruby.

syntax ruby "\.rb$"
header "^#!.*ruby[-0-9._]*"
magic "Ruby script"
linter ruby -w -c
comment "#"

# Reserved words.
color yellow "\<(BEGIN|END|alias|and|begin|break|case|class|def|defined\?|do|else|elsif|end|ensure|false|for|if|in|module)\>"
color yellow "\<(next|nil|not|or|redo|rescue|retry|return|self|super|then|true|undef|unless|until|when|while|yield)\>"
# Constants.
color brightblue "(\$|@|@@)?\<[A-Z]+[0-9A-Z_a-z]*"
# Ruby "symbols".
icolor magenta "([ 	]|^):[0-9A-Z_]+\>"
# Some unique things we want to stand out.
color brightyellow "\<(__FILE__|__LINE__)\>"
# Regular expressions.
color brightmagenta "/([^/]|(\\/))*/[iomx]*" "%r\{([^}]|(\\}))*\}[iomx]*"
# Shell command expansion is in `backticks` or like %x{this}.  These are
# "double-quotish" (to use a perlism).
color brightblue "`[^`]*`" "%x\{[^}]*\}"
# Strings, double-quoted.
color green ""([^"]|(\\"))*"" "%[QW]?\{[^}]*\}" "%[QW]?$[^)]*$" "%[QW]?<[^>]*>" "%[QW]?\[[^]]*\]" "%[QW]?\$[^$]*\$" "%[QW]?\^[^^]*\^" "%[QW]?![^!]*!"
# Expression substitution.  These go inside double-quoted strings,
# "like #{this}".
color brightgreen "#\{[^}]*\}"
# Strings, single-quoted.
color green "'([^']|(\\'))*'" "%[qw]\{[^}]*\}" "%[qw]$[^)]*$" "%[qw]<[^>]*>" "%[qw]\[[^]]*\]" "%[qw]\$[^$]*\$" "%[qw]\^[^^]*\^" "%[qw]![^!]*!"
# Comments.
color cyan "#[^{].*$" "#$"
color brightcyan "##[^{].*$" "##$"
# "Here" docs.
color green start="<<-?'?EOT'?" end="^EOT"
# Some common markers.
color brightcyan "(XXX|TODO|FIXME|\?\?\?)"

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