On Wednesday, February 25, 2015 at 2:03:40 PM UTC-5, Charles Campbell wrote: > 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
Thanks a lot Chip. That cleared it up. -- -- 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.
