FlashBurn wrote: > On Wednesday, February 25, 2015 at 11:31:36 AM UTC-5, Tim Chase wrote: >> On 2015-02-25 08:02, FlashBurn wrote: >>> I'm trying to understand the meaning of 'iskeyword' option but I >>> can't figure out from the help what it does. Any help in finding >>> out of the meaning of this option is greatly appreciated. >> 'isk' contains a list of characters (or character-ranges) for those >> characters that should be considered a "word". This comes into play >> when using "\<", "\>", "\k" and "\K" in a regular expression; what >> gets considered when you use "*" and "#" to search; what the "iw" and >> "aw" text-objects select; what's considered a "w"ord motion; how >> abbreviations are found; and plenty of other places. >> >> For example, by default "-" isn't part of the 'isk' setting, but if >> you wanted "vip" to highlight/select whole CSS selectors like >> "background-color" >> >> :set isk+=- >> >> to add the dash. Now, if you do "viw" anywhere in the attribute, >> it will highlight/select the entire "background-color" not just >> "background" or "color". >> >> It's a little tricky to add certain characters as they have special >> meaning. The easiest way I've found is to make a range of length one >> for "@": >> >> :set isk+=@-@ " add an at-sign, good for email addresses >> " and Python decorators >> >> -tim > I was trying to understand if it has a meaning in the highlight context. I'm > going through an online book, Learn Vimscript the Hard Way and in the > following chapter, > http://learnvimscriptthehardway.stevelosh.com/chapters/46.html, it talks > about the # symbol not being in iskeyword in the context of comments and > highlighting and I can't figure out why this matters. I think I'm getting the > meaning of this option, i.e. it defines what a word is, but why it matters in > highlighting, that is not clear to me. > Syntax highlighting is based upon regular expressions (see :he regexp). A commonly used thing to pick up on are: words. Most variables, function names, and commands, for example, fit into the description of "word". Hence, the scripts that specify syntax highlighting often use the \k atom (see :help /character-classes); and the \k atom depends upon the iskeyword setting. For example, syntax/latex.vim (by default) removes the underscore from the iskeyword option because latex will (usually) flag usage of it as an error.
Regards, Chip Campbell -- -- You received this message from the "vim_use" maillist. Do not top-post! Type your reply below the text you are replying to. For more information, visit http://www.vim.org/maillist.php --- You received this message because you are subscribed to the Google Groups "vim_use" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
