I have a few Regex expressions that I use with xVim for Xcode. Rather than repeatedly typing them out in the command bar with \<Regex>, I'd like to be able to invoke them with a custom command, like :Regex1. So I've added command Regex1 “/-\s*\(“ to my xvimrc file and restarted Xcode. When I run :Regex1 however nothing happens.
Your command wouldn't even work in original Vim. I don't know xVim, but try something along these lines:
" With cursor moving to match.
command Foo /foo/
" Just updating the search pattern (but less likely to be portable to xVim).
command Foo let #/ = 'foo'
If none of that works; try defining a mapping instead. As this is just translating keys, it has the highest chance of being supported.
I would suggest using this PERL Regex plugin since it already does what you want.
https://github.com/othree/eregex.vim
Abbreviations ...
I understand you often use the same regex. You can use abreviations instead of a command to do a search.
ab re -\s*(
then type / + re + space and your long regex (here just "-\s*(" should expand).
... Not user defined command
User defined commands are not available in ed nor in vi nor in vim without the +eval compilation flag (:h user-commands and scroll one line up).
For a list of ex commands: http://www.csb.yale.edu/userguides/wordprocess/vi-summary.html
For a list of ed commands: http://pubs.opengroup.org/onlinepubs/7908799/xcu/ed.html
Related
I'm trying to change the case of method names for some functions from lowercase_with_underscores to lowerCamelCase for lines that begin with public function get_method_name(). I'm struggling to get this done in a single step.
So far I have used the following
:%s/\(get\)\([a-zA-Z]*\)_\(\w\)/\1\2\u\3/g
However, this only replaces one _ character at a time. What I would like it a search and replace that does something like the following:
Identify all lines containing the string public function [gs]et.
On these lines, perform the following search and replace :s/_\(\w\)/\u\1/g
(
EDIT:
Suppose I have lines get_method_name() and set_method_name($variable_name) and I only want to change the case of the method name and not the variable name, how might I do that? The get_method_name() is more simple of course, but I'd like a solution that works for both in a single command. I've been able to use :%g/public function [gs]et/ . . . as per the solution listed below to solve for the get_method_name() case, but unfortunately not the set_method_name($variable_name) case.
If I've understood you correctly, I don't know why the things you've tried haven't worked but you can use g to perform a normal mode command on lines matchings a pattern.
Your example would be something like:
:%g/public function [gs]et/:s/_\(\w\)/\u\1/g
Update:
To match only the method names, we can use the fact that there will only be method names before the first $, as this looks to be PHP.
To do that, we can use a negative lookbehind, #<!:
:%g/public function [gs]et/:s/\(\$.\+\)\#<!_\(\w\)/\u\2/g
This will look behind #<! for any $ followed by any number of characters and only match _\(\w\) if no $s are found.
Bonus points(?):
To do this for multiple buffers stick a bufdo in front of the %g
You want to use a substitute with an expression (:h sub-replace-expression)
Match the complete string you want to process then pass that string to a second substitute command to actually change the string
:%s/\(get\|set\)\zs_\w\+/\=substitute(submatch(0), '_\([A-Za-z]\)', '\U\1', 'g')
Running the above on
get_method_name($variable_name)
set_method_name($variable_name)
returns
getMethodName($variable_name)
setMethodName($variable_name)
To have vi do replace sad with happy, on all lines, in a file:
:1, $ s/sad/happy/g
(It is the :1, $ before the sed command that instructs vi to execute the command on every line in the file.)
I want to delete everything from start of the document upto some regex match, such as _tmm. I wrote the following custom command:
command! FilterTmm exe 'g/^_tmm\\>/,/^$/mo$' | norm /_tmm<CR> | :0,-1 d
This doesn't work as expected. But when I execute these commands directly using the command line, they work.
Do you have any alternative suggestions to accomplish this job using custom commands?
It seems that you want to remove from beginning to the line above the matched line.
/pattern could have offset option. like /pattern/{offset}, :h / for detail, for your needs, you could do (no matter where your cursor is):
ggd/_tmm/-1<cr>
EDIT
I read your question twice, it seems that you want to do it in a single command line.
Your script has problem, normal doesn't support |, that is, it must be the last command.
try this line, if it works for you:
exe 'norm gg'|/_tmm/-1|0,.d
I am trying to modify Brett Terpstra's handy QuickQuestion script for my Linux machine. What would be Ack's equivalent to the following mdfind commands:
mdfind -onlyin "$NOTESDIR" "filename:.$NOTESEXT AND filename:\"$NOTESPRE\" AND ${INPUT%\?}"
...
echo "`mdfind -onlyin \"$NOTESDIR\" -interpret \"filename:.$NOTESEXT AND filename:$NOTESPRE AND ${INPUT%\?}\"`"
I can't seem to get the AND part right. I understand that one has to use parentheses since Ack is Perl. But for example (?="$NOTESPRE")(?="$INPUT") gave errors.
Furthermore, I am not sure what to do with the -interpret switch on the second line.
Puzzled with such a simple query... Thanks for any help!
Double lookaheads need a range of things to consider, so you need to add wildcards to their patterns, for example:
>>echo "foo bar \$NOTESPRE \$INPUT baz" | ack "^(?=.*$NOTESPRE)(?=.*$INPUT).*$"
returns:
foo bar $NOTESPRE $INPUT baz
If you need to search a particular directory for files containing this line, just specify the directory on the command line:
ack "^(?=.*$NOTESPRE)(?=.*$INPUT).*$" path\to\directoryToSearch
-interpret has no direct parallel in regex.
I'm working on refactoring a bunch of PHP code for an instructor. The first thing I've decided to do is to update all the SQL files to be written in Drupal SQL coding conventions, i.e., to have all-uppercase keywords. I've written a few regular expressions:
:%s/create table/CREATE TABLE/gi
:%s/create database/CREATE DATABASE/gi
:%s/primary key/PRIMARY KEY/gi
:%s/auto_increment/AUTO_INCREMENT/gi
:%s/not null/NOT NULL/gi
Okay, that's a start. Now I just open every SQL file in Vim, run all five regular expressions, and save. This feels like five times the work it should be. Can they be compounded in to one obnoxiously long but easily copy-pastable regex?
why do you have to do it in vim? how about sed/awk?
e.g. with sed
sed -e 's/create table/\U&/g' -e's/not null/\U&/g' -e 's/.../\U&/' *.sql
btw, in vi you may do
:%s/create table/\U&/g
to change case, well save some typing.
update
if you really want a long command to execute in vi, maybe you could try:
:%s/create table\|create database\|foo\|bar\|blah/\U&/g
Open the file containing that substitution commands.
Copy its contents (to the unnamed register, by default):
:%y
If there is only one file where the substitutions should be
performed, open it as usual and run the contents of that register
as a Normal mode command:
:#"
If there are several files to edit automatically, open those
files as arguments:
:args *.sql
Execute the yanked substitutions for each file in the argument list:
:argdo #"|up
(The :update command running after the substitutions, writes
the buffer to file if it has been changed.)
While sed can handle what you want (hovewer it can be interactive as you requestred by flag 'i'), vim still much powerfull. Once I needed to change last argument in some function call in 1M SLOC code base. The arguments could be in one line or in several lines. In vim I achieved it pretty easy.
You can open all php files in vim at once:
vim *.php
After that run in ex mode:
:bufdo! %s/create table/CREATE TABLE/gi
Repeat the rest of commands. At the end save all the files and exit vim:
:xall
I want to apply a certain regular expression substitution globally to about 40 Javascript files in and under a directory. I'm a vim user, but doing this by hand can be tedious and error-prone, so I'd like to automate it with a script.
I tried sed, but handling more than one line at a time is awkward, especially if there is no limit to how many lines the pattern might match.
I also tried this script (on a single file, for testing):
ex $1 <<EOF
gs/,\(\_\s*[\]})]\)/\1/
EOF
The pattern will eliminate a trailing comma in any Perl/Ruby-style list, so that "[a, b, c,]" will come out as "[a, b, c]" in order to satisfy Internet Explorer, which alone among browsers, chokes on such lists.
The pattern works beautifully in vim but does nothing if I run it in ex, as per the above script.
Can anyone see what I might be missing?
You asked for a script, but you mentioned that you are vim user. I tend to do project-wide find and replace inside of vim, like so:
:args **/*.js | argdo %s/,\(\_\s*[\]})]\)/\1/ge | update
This is very similar to the :bufdo solution mentioned by another commenter, but it will use your args list rather than your buflist (and thus doesn't require a brand new vim session nor for you to be careful about closing buffers you don't want touched).
:args **/*.js - sets your arglist to contain all .js files in this directory and subdirectories
| - pipe is vim's command separator, letting us have multiple commands on one line
:argdo - run the following command(s) on all arguments. it will "swallow" subsequent pipes
% - a range representing the whole file
:s - substitute command, which you already know about
:s_flags, ge - global (substitute as many times per line as possible) and suppress errors (i.e. "No match")
| - this pipe is "swallowed" by the :argdo, so the following command also operates once per argument
:update - like :write but only when the buffer has been modified
This pattern will obviously work for any vim command which you want to run on multiple files, so it's a handy one to keep in mind. For example, I like to use it to remove trailing whitespace (%s/\s\+$//), set uniform line-endings (set ff=unix) or file encoding (set filencoding=utf8), and retab my files.
1) Open all the files with vim:
bash$ vim $(find . -name '*.js')
2) Apply substitute command to all files:
:bufdo %s/,\(\_\s*[\]})]\)/\1/ge
3) Save all the files and quit:
:wall
:q
I think you'll need to recheck your search pattern, it doesn't look right. I think where you have \_\s* you should have \_s* instead.
Edit: You should also use the /ge options for the :s... command (I've added these above).
You can automate the actions of both vi and ex by passing the argument +'command' from the command line, which enables them to be used as text filters.
In your situation, the following command should work fine:
find /path/to/dir -name '*.js' | xargs ex +'%s/,\(\_\s*[\]})]\)/\1/g' +'wq!'
you can use a combination of the find command and sed
find /path -type f -iname "*.js" -exec sed -i.bak 's/,[ \t]*]/]/' "{}" +;
If you are on windows, Notepad++ allows you to run simple regexes on all opened files.
Search for ,\s*\] and replace with ]
should work for the type of lists you describe.