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The rules assume that 'STOP' (for Perl) or EOT (for Ruby) is the terminating string while it could be anything. Also, the rules don't take quotes nor backticks nor a tilde into account. In short: these coloring rules are far too limited. References: https://perldoc.perl.org/perlop#%3C%3CEOF https://docs.ruby-lang.org/en/3.0.0/doc/syntax/literals_rdoc.html#label-Here+Documents+-28heredocs-29 Signed-off-by: Hussam al-Homsi <sawuare@gmail.com>
36 lines
1.4 KiB
Plaintext
36 lines
1.4 KiB
Plaintext
## Syntax highlighting for Ruby.
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syntax ruby "\.rb$"
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header "^#!.*ruby"
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magic "Ruby script"
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comment "#"
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linter ruby -w -c
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# Constants.
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color brightblue "\<[A-Z]+[0-9A-Z_a-z]*|(\$|@|@@)[0-9A-Z_a-z]+"
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# Reserved words.
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color yellow "\<(BEGIN|END|alias|and|begin|break|case|class|def|defined\?|do|else|elsif|end|ensure|false|for|if|in|module)\>"
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color yellow "\<(next|nil|not|or|redo|rescue|retry|return|self|super|then|true|undef|unless|until|when|while|yield)\>"
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# Ruby "symbols".
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color magenta "([ ]|^):[0-9A-Za-z_]+\>"
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# Some unique things we want to stand out.
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color brightyellow "\<(__FILE__|__LINE__)\>"
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# Regular expressions.
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color brightmagenta "/([^/]|(\\/))*/[iomx]*" "%r\{([^}]|(\\}))*\}[iomx]*"
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# Shell command expansion is in `backticks` or like %x{this}. These are
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# "double-quotish" (to use a perlism).
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color brightblue "`[^`]*`" "%x\{[^}]*\}"
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# Strings, double-quoted.
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color green ""([^"]|(\\"))*"" "%[QW]?\{[^}]*\}" "%[QW]?\([^)]*\)" "%[QW]?<[^>]*>" "%[QW]?\[[^]]*\]" "%[QW]?\$[^$]*\$" "%[QW]?\^[^^]*\^" "%[QW]?![^!]*!"
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# Expression substitution. These go inside double-quoted strings,
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# "like #{this}".
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color brightgreen "#\{[^}]*\}"
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# Strings, single-quoted.
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color green "'([^']|(\\'))*'" "%[qw]\{[^}]*\}" "%[qw]\([^)]*\)" "%[qw]<[^>]*>" "%[qw]\[[^]]*\]" "%[qw]\$[^$]*\$" "%[qw]\^[^^]*\^" "%[qw]![^!]*!"
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# Comments.
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color cyan "#[^{].*" "#$"
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color brightcyan "##[^{].*" "##$"
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# Some common markers.
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color brightcyan "XXX|TODO|FIXME|\?\?\?"
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