doc/syntax/ruby.nanorc, improve highlighting of constants


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preprocessed C and C++ output, colorize them there


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Unicode characters


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with a FAQ entry explaining the problem, since it could break anything
using extended regular expressions, and glibc 2.2.3 is old


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tweaks by Benno Schulenberg


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they're installed properly and nanorc.sample references them properly


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add regexes for Ruby


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regexes to color keywords bright green instead of cyan


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regexes


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regexes to color comments bright blue instead of blue


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regexes to properly color all special variables, such as $? and $@


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prompt, and how Unicode input only works when Unicode support is enabled


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minor fixes to nanorc.sample


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mouse support in more detail, and sync the text of its description across
all documentation


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"file name" to "filename"


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regex used to highlight trailing whitespace, since we now support
background colors without foreground colors


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"[0-9A-Za-z_]", and instances of "\W" with its equivalent
"[^0-9A-Za-z_]", for greater readability


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