Questions tagged [regular-expression]
Regular expressions (often shortened to "regex") are expressions written in a declarative language used for matching patterns within strings.
587 questions
15 votes
3 answers
2k views
Why do I need \n when searching and \r when replacing?
When I want to replace the two lines %argdel edit wezterm.lua with these: 0argadd wezterm.lua last The only regex that seems to work is this: %s/\V%argdel\nedit \(wezterm.lua\)/0argadd \1\rlast/g ...
- 187
0 votes
1 answer
40 views
What happened exactly when `bufname()` returns an empty string?
By :h bufname, there are three different meanings when the return value is an empty string: [...] set and 'cpoptions' is empty. **When there is more than one match an empty ...
- 1,860
0 votes
1 answer
115 views
How to highlight text inside [...] differently than text inside ![...]!
The goal is to highlight text inside [...] with a different color than text inside ![...]! Also everything should be nestable such that [...] could contain ![...]! inside of it or vice versa and the ...
- 85
1 vote
3 answers
147 views
How to make vim in ex command mode not hang on substitution if there is no match?
The following hangs on the 2nd ex call: echo foo > test.txt ex -s -c '%s/foo/bar/|x' test.txt ex -s -c '%s/baz/foo/|x' test.txt The reason it hangs is, there is no baz in test.txt. It hangs so ...
- 245
2 votes
3 answers
132 views
Replace content between two characters (C function implementation body)
When I start developing some lib, I usually start from functions implementation and then I proceed to the header file. So, after copying the .c source file to .h, thus having the header file as: void ...
- 580
1 vote
1 answer
115 views
How to write a Vim regex to capture isolated strings?
If I want to capture x, then the regex shall be able to capture exactly x and not xx or xxx, or if I want to capture xx, then then the regex shall be able to capture exactly xx and not xxxx or xxxxxx. ...
- 1,133
0 votes
2 answers
340 views
How to remove all HTML or XML tags with regex?
How to remove all HTML or XML tags from a file with Vim regex? :%s/<.*>//g is greedy and will match everything between the first < and the last > on the line.
- 537
0 votes
1 answer
81 views
Extending C# syntax highlighting
I am trying to create my own color scheme in the latest version of gVim and I have encountered a problem. When I try to add a new group for syntax highlighting, for example I want the library ...
- 1
1 vote
1 answer
94 views
Remove markers both with or without a leading comment character
I use Vim with marker folding for my work and the presence of all the fold markers annoys my colleagues, so I want a quick and easy way to cleanly remove them all from my files. Closing markers are ...
- 67
1 vote
1 answer
30 views
jsRegexpString makes syntax highlighting so slow
I have some javascript files with hard coded base64 strings, and there is horrible lag between cursor commands. When I did a syntime report, I am seeing: 3.553307000 589 38 0.196905000 0....
- 113
0 votes
1 answer
51 views
How to match csv start with empty item?
Currently I'm using: \v(((^|,)[^,]*){3})(.*) to match csv lines, the first part ((^|,)[^,]*){3} is to match 3 items, then the second part .* matches the rest. However, if the csv line starts with a ...
- 359
1 vote
1 answer
460 views
Not finding search term with square brackets in it
I have the following line in my file: if (Infix[i] == '+' || Infix[i] == '-' || Infix[i] == '/' || Infix[i] == '*') When I search using the command /Infix[i] I am getting the error: E486: Pattern not ...
- 11
2 votes
1 answer
164 views
Swap C++ function parameters using regex
I'm trying to swap the arguments to function GetNumberOfMilliSeconds() using a regular expression. Currently I'm doing it by using macros and copying the first and second parameters into different ...
- 123
1 vote
2 answers
48 views
How to match csv items? (round 2)
As Vivian answered in , using \v(^|,)\zs([^,"]*|("[^"]*")|(""".{-}"""))\ze(,|$) can match csv items such as: simple e.g.: ,abc,, whose content is ...
- 359
0 votes
2 answers
58 views
Is it possible to use '\1[2:3]' in substitute?
During :s command line substitute, after matching I can use abc\2,cde\1 this kind of syntax to format the output, however, seems it's not possible to use abc\2[3:-1],cde\1[2:3] to take a substring ...
- 359