Vim syntax file regex

Reread the last few paragraphs if you need a hint. We didn't make : an operator in our example. Read the Potion docs and make a conscious decision about whether to make : an operator. If you decide to do so, add it to the syntax file. Add a syntax group potionNumber that highlights numbers. Link it to the highlight group Number. Remember that Potion supports numbers like 2 , 0xffaf , Remember to balance the time it takes to handle edge cases with the amount of time those edge cases will actually be used.

Advanced Syntax Highlighting So far we've defined some simple syntax highlighting for Potion files: keywords and functions. Highlighting Comments One obvious part of Potion that we need to highlight is comments. Highlighting Operators Another part of Potion we need regexes to highlight is operators.

Exercises Read :help syn-match. Read :help syn-priority. I'm struggling with learning vim regexps I don't know any other regexp very well either , so the main problem is to define regexp that would match. The next problem is how to define syntax files in vim. I would appreciate help with that, but It shouldn't be that hard to learn, so I can do that on my own probably. EDIT based on the answer I've maid my own syntax script for python.

Feel free to try it. By using regions, I get to nest the matches as much as I need, which would have be very complicated impossible? I believe the regular expressions used for matching the function call and the keyword can be refined, but considering what's valid in Python 3 , that's not a task I'm willing to take on.

Optionally, I think you can use this to highlight function calls, using a matchgroup :. This topic :h mysyntaxfile-add should be interesting for you. Also I used a different regex than the other answer, here is the detail I don't know which one works better so you'll probably have to try :.

The as-of-writing accepted answer broke highlighting for strings inside function argument lists for me by what alchemy I do not know , so here's a hopefully more safe version, based on Statox' one. Of course you're free to change the colors to whatever you find fancy. Here's a handy list. The final check stops the highlighting from coloring conditionals. You can remove if it you want. I found that Wolfie's answer captures unwrapping of a tuple as a keyword and it also had trouble capturing linebroken keyword arguments.

Inspired by his regex I came up with the following to put in my python. Bear in mind that I'm originally using the python. And the regex breakdown is very similar to Wolfie's answer :. Matching such numbers separately to mark as Error would also be acceptable.

Then only 3. It's ok to do it in multiple steps. Using these two, we miss miss 5. It would ignore the 1 in var1. But it would also match 5 , causing the parentheses to highlight. How can I tell that this is not a word? Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow.

Learn more. Vim regex to find numbers that are not part of other words Ask Question. Asked 7 years, 10 months ago. Active 7 years, 10 months ago. Viewed times. As in arithmetic expressions, regular expressions are executed in a certain order of precedence. Here the table of precedence, from highest to lowest:. I want to introduce another quite useful and powerful Vim command which we're going to use later. The global commands work by first scanning through the [ range ] of of the lines and marking each line where a match occurs.

In a second scan the [ cmd ] is executed for each marked line with its line number prepended. If a line is changed or deleted its mark disappears. The default for the [ range ] is the whole file.

Note: Ex commands are all commands you are entering on the Vim command line like :s[ubstitute], :co[py] , :d[elete], :w[rite] etc. Non-Ex commands normal mode commands can be also executed via. Here is a modified example from Walter Zintz vi tutorial :. You can give multiple commands after :global using " " as a separator.

Another example from Zintz tutorial:. Without giving the line address :s will operate on the current line, which is the newly copied line. For this example you need to know a bit of HTML. We want to make a table of contents out of h1 and h2 headings, which I will call majors and minors. The "anchor " is a unique identifier of this particular place in HTML document.

Now we have a bunch of lines like:. Second, we want our h1 entries look different from h2. Let's define CSS classes "majorhead" and "minorhead" and do the following:. Consider, for example, the following text. Suppose we want to change all "Europe" cells in the third column to "Asia":. Here I would like to compare Vim's regexp implementation with others, in particular, Perl's.

You can't talk about regular expressions without mentioning Perl. Read VIM documentation about pattern and searching. To get this type ":help pattern" in VIM normal mode. O'Reilly has one of the book chapters available online. This page has been moved from an old geocities to rescue it from a premature death. If you are the former maintainer of this content please contact us we tried to contact you, honest to let us know if you are interested in resume maintainence of this content or just to say Cheers!

For each line in the range replace a match of the pattern with the string where:. This is a sequence of characters enclosed by square brackets "[" and "]". It matches any character from this set. More on character ranges in the following section. Matching Matching. Watch what happens when we apply s:[65]:Dig:g to the following text: Before: High 65 to Southeast wind around 10 After: High DigDig to