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375b30507e
Vim and Emacs do this too. Reference: https://en.wikibooks.org/wiki/Ruby_Programming/Syntax/Lexicology Also, when colorizing double-hashed comments specially anyway, avoid colorizing ##.* as a single-hashed comment.
39 lines
1.3 KiB
Plaintext
39 lines
1.3 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 "(/([^/]|\\/)*/|%r\{([^}]|\\\})*\})[iomx]*"
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# Shell command expansion is in `backticks` or like %x{this}.
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color brightblue "`[^`]*`|%x\{[^}]*\}"
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# Strings, double-quoted.
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color green ""([^"]|\\")*"" "%[QW]?(\{[^}]*\}|\([^)]*\)|<[^>]*>|\[[^]]*\]|\$[^$]*\$|\^[^^]*\^|![^!]*!)"
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# Expression substitution for inside double-quoted strings, "like #{this}".
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color brightgreen "#\{[^}]*\}"
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# Strings, single-quoted.
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color green "'([^']|\\')*'" "%[qw](\{[^}]*\}|\([^)]*\)|<[^>]*>|\[[^]]*\]|\$[^$]*\$|\^[^^]*\^|![^!]*!)"
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# Comments.
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color cyan "#([^{#].*|$)"
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color brightcyan "##([^{].*|$)"
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color cyan start="^=begin\>" end="^=end\>"
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# Some common markers.
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color brightcyan "XXX|TODO|FIXME|\?\?\?"
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