C++ Select Multiple Occurances of a variable? - c++

I am new to C++, but I come from Python, and was starting C++ in a new semester. I remember in Python, you can select multiple occurrences. ATM I am using Code::Blocks.
So, when I start selecting a variable that pops up a few times, I see it highlights the other same variables in red, but I am only able to change one at a time. So I am looking for like a multiple-cursor type method where I can select all occurrences of a variable or word and rewrite them. For example, if I want to change 15 places where I used the variable name weight instead of weightsKG then I want to be able to select all at once, not CTRL-select. Or is that not possible?

In CodeBlocks, you can use the Replace... or Replace in files... command from the Search menu.
At this point a dialog will open where you will enter the text to be replaced and the updated one.
Pressing the Replace button will open another dialog where you can confirm one by one the replacement of the text, or you can replace all the occurrences in one go.
That's all.

Related

Find and replace in Visual Studio code in a selection

I have the following line in a file I'm editing in VSCode:
...............111.........111.............111..
I want to replace all .s with 0s. However, when I highlight the line and do a find/replace for .s, all the .s in the document are replaced, not just the ones in the line I've select, even when I toggle the "Find in selection" button. Is this a bug? In other editors, if I select a chunk of text and then do a find/replace, it will only find/replace matches within the selected block.
Below is a snippet that you should be able to reproduce the issue with. The ...............111.........111.............111.. line is inside the test_unicode function.
def test_simple2(self):
"""Simple CSV transduction test with empty fields, more complex idx, different pack_size.
100011000001000 ->
..........111....................111..........11111..........111..
"""
field_width_stream = pablo.BitStream(int('1000110001000001000', 2))
idx_marker_stream = pablo.BitStream(int('11101', 2))
pack_size = 4
target_format = TransductionTarget.JSON
csv_column_names = ["col1", "col2", "col3", "col4", "col5"]
pdep_marker_stream = pablo.BitStream(generate_pdep_stream(field_width_stream,
idx_marker_stream,
pack_size, target_format,
csv_column_names))
self.assertEqual(pdep_marker_stream.value, 63050402300395548)
def test_unicode(self):
"""Non-ascii column names.
Using UTF8. Hard coded SON boilerplate byte size should remain the same, column name
boilerplate bytes should expand.
100010010000000 ->
2 + 4 + 9 2 + 4 + 6 2 + 4 + 7
...............111.........111.............111..
"""
field_width_stream = pablo.BitStream(int('100010001000', 2))
idx_marker_stream = pablo.BitStream(1)
pack_size = 64
target_format = TransductionTarget.JSON
csv_column_names = ["한국어", "中文", "English"]
pdep_marker_stream = pablo.BitStream(generate_pdep_stream(field_width_stream,
idx_marker_stream,
pack_size, target_format,
csv_column_names))
self.assertEqual(pdep_marker_stream.value, 1879277596)
I'm using VSCode 1.12.2 in Ubuntu 16.04.
I was able to get it to work but the workflow is poor:
control + H to open Find/Replace
Select your line of text
Click the "Find in selection" icon to the right Alt L or ⎇ ⌘ L on macOS)
Enter your find and replace characters in their inputs
Click the Replace all icon
It works but you have to go through the workflow all over again for each new selection (except for CTR + H of course). BTW I have the exact same behavior in Sublime Text.
Could you go with a regExp to find your lines? Do they contain only .'s and 1's?
This is a more general answer for other users who come here just wanting to use basic find and replace functionality.
On Mac you can press Command + Option + F to open Find and Replace:
Alternatively, you can press Command + F to open Find and then click the little triangle on the left to show the Replace field:
From the VSCode devs:
We used to enable find in selection automatically when opening the
find widget with a selection, but it was too easy to trigger
accidentally and produced a lot of complaints. You probably want to
set "editor.find.autoFindInSelection": true which will make it work
the way you expect.
The VSCode GitHub issue has more details if anyone is interested.
EDIT: The autoFindInSelection option is available starting from VSCode 1.13. That version is currently in development (as of 6/7/2017), so this fix won't work until the new version is released.
I found the following workflow to be fairly painless:
Select text region with mouse or keyboard.
Ctrl+H to toggle find and replace
Alt+L to toggle find in selection
Ctrl+Alt+Enter to replace all (or enter to replace individually)
Since sometimes we might have similarly named things so you don't want to select everything, one of my favorites shortcut sequences is to select the next occurrence:
Use shift and arrows to highlight the term you want to match.
Use Ctrl + d to highlight the next occurrence of the term.
The Basic Editing in VS Code documentation page has some extremely useful variations on find and replace. One extremely useful shortcut is the Column (Box) Selection.
Just ran into this, my solution was to do
command + N to create a new file
paste my selection in there
do my find and replace operations on that while file
copy result back on top of my original selection
On Mac:
Select the text
Press command + shift + L
For mac
Press command + option + f to bring up this menu:
Press the little icon that has the arrow pointing at it above (3 horizontal bars)
Select the text you want to do a find and replace in, and enter the 'find' and 'replace' fields
Press this icon:
That's all!
In 2022, there's a bug to be wary of 🐛
There is a silent bug (I'll add more about this as I learn more about it). But sometimes find and replace within selection doesn't find the values, even if you can see them with your own eyes. This is dangerous because you could think you've replaced them all but it really hasn't.
So do these two things:
a visual check after doing a find and replace (to make sure it worked)
if vscode completely ignores you (and doesn't do the find and replace within selection after you've followed the above instructions), close the find and replace box by pressing the "x" in the corner, and retry the sequence of steps (it worked for me after closing and retrying).
Okay, this is really dumb, at first I felt really stupid when I finally found this, then I realized its just VS Code which has a bad interface.
The key is, there are TWO TOOLS here,
Search/Replace (the pane on the left at the top of the Explorer) and Find/Replace (which is a dialogue which opens when you press CTRL-F)
THESE ARE NOT THE SAME TOOL!!
SEARCH-REPLACE is a tool written for project-wide searches and
changes
FIND-REPLACE is a small dialogue best suited for more
surgical editing.
i.e. you should use FIND-REPLACE!
find replace window image with find-in-selection highlighted
Also, its SUPER IMPORTANT to follow these steps in the right order, or it doesn't give the expected results.
Press CTRL-F to open the find dialogue (usually opens in the top right)
press the little arrow to the right of the find field which opens the replace input field
ensure "find in selection" is turned off (i.e. not highlighted)
type in the fields the strings you want to search/replace
select the text you want to do a search/replace within.
Now press "find in selection" (or type ALT-L)
You should see only highlighting in the area you previously selected.
Now you can click either "replace all" (CTRL-ALT-ENTER) or line-by-line "replace" (ENTER)
I hope this helps.
My suggestion to VSC developers, there should be a refresh button so that after you have selected the area of interest, and you already have your find and replace strings defined, you can select a new region and click "refresh find" instead of needing to repeat steps 3 to 8.
For those where it still does not work, there is one step omitted in all of the above answers: Uncheck "Find in selection" if it is checked (which it probably is when you are struggling with it and in despair googled the problem, and then found this SO entry). Only then select the lines and then re-check "Find in selection".
For Ubuntu, highlight the lines where you want to make changes, press alt-L and then ctrl-H. Then type the name you want to replace and replacement name in the top right dropdown.
Or some combination of these actions depending on whether the dropdown is already open or you're already in alt-L mode. I'm still learning but thought I'd share what's working.

How do I find and replace all occurrences (in all files) in Visual Studio Code?

I can't figure out how to find and replace all occurrences of a word in different files using Visual Studio Code version 1.0.
I get the impression this should be possible since doing Ctrl + Shift + F allows me to simply search a folder, but i am clueless to how to proceed from here.
I looked in various key combination
https://code.visualstudio.com/Docs/customization/keybindings
But I only found how to replace all occurrences in the open file (Ctrl + h)
All help gratefully appreciated, this is driving me crazy.
I'm using Visual Studio Code 1.8, and this feature is available. But it's a little tricky to understand at first, and (at the time of writing) the docs don't explain clearly how to use it, so here's how it works, step by step:
Invoke Replace in Files (under the Edit menu, or with shortcut Ctrl+Shift+H)
You'll see a standard Find/Replace input replacing the files pane on the left:
Enter your search string and the replace string, then press enter. It may churn for a second searching all files, then it'll show the proposed changes in all your project files -- but note, these changes haven't been made yet! Here's what it looks like:
Now you need to make the changes (and even after that, you have to save the modified files.)
You can make those changes in various ways:
Make all changes to all files at once.
Click the replace icon next to your replace string (note: you'll get a dialog to confirm this bulk action.)
Make all changes in a single file at once.
Click the replace icon next to the filename (note: the icon only shows up when you hover over the filename row)
Make a single change in a single file.
Click the replace icon next to the individual change: (note: the icon only shows up when you hover over the change row)
Finally, don't forget to save!
All those files are now modified in the editor and not yet saved to disk (unless Auto Save is on).
Use File -> Save All (or Ctrl+Alt+S)
Update: I'm not sure when this was added, but if you click the "Replace all" button and see this dialog, clicking "Replace" will change and save all files in one click:
Since version 1.3 of vscode this is possible
Navigate to the search, click icon to the left or:
(mac) cmd + shift + h
(PC) ctrl + shift + h
expand replace
enter search term and replace term
confirm!
To replace a string in a single file (currently opened): CTRL + H
For replacing at workspace level use: CTRL + SHIFT + H
Update for 2020
If you are using the search feature to search across files (Ctrl + Shift + F) it can be easy to miss how to convert your search to a search and replace within the UI.
Here's a typical search result:
To convert this to a search and replace you need to click the arrow icon to the left of the search input field. This will open the replace options as seen below. Note the arrow icon is now pointed down.
The keyboard shortcut Ctrl + Shift + H will also work as well to access the search and replace.
Link to VSCode docs on search and replace: https://code.visualstudio.com/docs/editor/codebasics#_search-and-replace
This is the best way.
First put your cursor on the member and click F2.
Then type the new name and hit the Enter key. This will rename all of the occurrences in every file in your project.
This is ideal for when you want to rename across multiple files. For example, you may want to rename a publicly accessible function on an Angular service and have everywhere that uses it get updated.
For more great tools I highly recommend:
https://johnpapa.net/refactoring-with-visual-studio-code/
On the Visual Studio Code Key Bindings page, the section Keyboard Shortcuts Reference has links to a PDF for each major OS. Once open, search for "replace in files" or any other shortcut you might need.
Another way is to use the Command Palette (ctrl/cmd+shift+P) where you can type "replace" to list all related commands, including the one you want:
Replace in Files ctrl/cmd+shift+H
Visual Studio Code: Version: 1.53.2
If you are looking for the answer in 2021 (like I was), the answer is here on the Microsoft website but honestly hard to follow.
Go to Edit > Replace in Files
From there it is similar to the search funtionality for a single file.
I changed the name of a class I was using across files and this worked perfectly.
Note: If you cannot find the Replace in Files option, first click on the Search icon (magnifying glass) and then it will appear.
There are 2 methods technically same
First put your cursor on the word and press F2.
Replace your word and press Enter.
First put your cursor on the word and left click it.
Click "Rename Symbol" option.
Replace your word and press Enter.
In the VSC version 1.57
you can use the F2 key to replace on the folder(Rename Symbol)
Only thing is that even though all the places inside folder are replaced the file is not saved and the save has to be done afterwards
Also, instead of presing enter and replace all directly, you can press Shift + Enter to preview the places that are going to be renamed.
Step by step with images
Nowadays in VS Code this can be done quickly.
1) Click on the Search Button (in the side bar):
2) Enter in the inputs what do you want to find, and with what do you want to replace it:
(Here I am replacing in my project all the occurrences of table-cell with t-cell)
3) Finally, click on this small button (Replace All):
Then a pop-up will appear to confirm if you want to replace all occurrences. Click on Replace.
And you're done!
For search and replace all use this command:
command + option + F

Search/replace in block selection in Notepad++

Is there a way to limit search/replace only to a columnar block selection in Notepad++?
Here is what I am trying to do:
I am bulk-editing metadata extracted from large numbers of photos.
The metadata comes to me as a csv file with no quotes around fields in header line and no quotes around first field in each succeeding line.
I edit this file in Open Office calc which exports with quotes around all fields.
I can easily edit header row but the problem comes in stripping quotes from only first field in successive lines.
I can use notepad in columnar mode but, after selecting the first column, the 'search only in selection' option box is greyed out.
I can do this by hand but it means lots of hand-work and increased chance of error.
I know, this probably won't help you any more, but I just had the same problem and stumbled across this question.
I found moving the block in question to a new file and performing the find/replace there works quite decently. When moving the block back, be sure to select it in block mode (see this question).
No. Another editor may have this feature.
sort of a late reply but... I had the same problem when I moved to a new machine with Notepad++ installed. Previously, I was using a text editor called Boxer that had this feature, which I found invaluable. Its not free-ware however.
You may not be able to Search/Replace within a columnar selection, but you can easily carry out your task within Notepad++. Use Find and Replace feature, with the Regular Expressions box checked.
If you want to remove quotes only from a target column, use the following regular expression in the Find field:
(^([^,]*,){i})"([^,\n\r]*)"(.*$)
Replace i with the position of the target column minus 1.
(i.e.- Us 2 if you want quotes around the third column, 0 for the first column, etc)
In the Replace field use:
\1\3\4
Clicking "Replace All" will strip quotes from the target column.
If you want to blow away all quotes surrounding each element in your csv without prejudice, use the following regular expression in the Find field:
((?<=,)|(?<=^))"(.*?)"((?=$|,))
In the Replace field use:
\1\2\3
Clicking Replace All will strip quotes form the columns.
Example
Since you didn't provide an example csv file, I'll walk through my own working example. Below is my csv:
"0","1","2","3","4","5","6","7","8","9"
"10","11","12","13","14","15","16","17","18","19"
"20","21","22","23","24","25","26","27","28","29"
"30","31","32","33","34","35","36","37","38","39"
"40","41","42","43","44","45","46","47","48","49"
"50","51","52","53","54","55","56","57","58","59"
"60","61","62","63","64","65","66","67","68","69"
"70","71","72","73","74","75","76","77","78","79"
"80","81","82","83","84","85","86","87","88","89"
"90","91","92","93","94","95","96","97","98","99"
"100","101","102","103","104","105","106","107","108","109"
"110","111","112","113","114","115","116","117","118","119"
"120","121","122","123","124","125","126","127","128","129"
"130","131","132","133","134","135","136","137","138","139"
"140","141","142","143","144","145","146","147","148","149"
"150","151","152","153","154","155","156","157","158","159"
"160","161","162","163","164","165","166","167","168","169"
"170","171","172","173","174","175","176","177","178","179"
"180","181","182","183","184","185","186","187","188","189"
"190","191","192","193","194","195","196","197","198","199"
If I wanted to remove quotes from the second column, I would use the below Find and Replace fields
(^([^,]*,){1})"([^,\n\r]*)"(.*$)
\1"\3"\4
Clicking Replace All yields the below result:
"0",1,"2","3","4","5","6","7","8","9"
"10",11,"12","13","14","15","16","17","18","19"
"20",21,"22","23","24","25","26","27","28","29"
"30",31,"32","33","34","35","36","37","38","39"
"40",41,"42","43","44","45","46","47","48","49"
"50",51,"52","53","54","55","56","57","58","59"
"60",61,"62","63","64","65","66","67","68","69"
"70",71,"72","73","74","75","76","77","78","79"
"80",81,"82","83","84","85","86","87","88","89"
"90",91,"92","93","94","95","96","97","98","99"
"100",101,"102","103","104","105","106","107","108","109"
"110",111,"112","113","114","115","116","117","118","119"
"120",121,"122","123","124","125","126","127","128","129"
"130",131,"132","133","134","135","136","137","138","139"
"140",141,"142","143","144","145","146","147","148","149"
"150",151,"152","153","154","155","156","157","158","159"
"160",161,"162","163","164","165","166","167","168","169"
"170",171,"172","173","174","175","176","177","178","179"
"180",181,"182","183","184","185","186","187","188","189"
"190",191,"192","193","194","195","196","197","198","199"
My search on internet, to to see weather notepad++ suports this; brought me here.
I have used TextPad and confirm that it supports find-and-replace within column selected block. Also TextPad is free for personal use.

Any Characters Replace Increment Number

Is it possible when columns not align?
var[x];
var[x];
var[x];
var[x];
..
replace
var[0];
var[1];
var[2];
var[3];
Sezer, here is an easy way to do it in Notepad++
In the Replace tab, make sure you check the "Regular Expression" box at the bottom left
Search: (^\w+\[(\d+)\]=[^;]+;\w+\[)[^]]+
Replace: \1\2 or $1$2 (depending on your locale, you may have to choose one or the other.)
Hit "Replace All"
Note that this will work for two variables on the same line, regardless of their name, for instance firstvar[10]="asfa";somevar[x]="asdfas";
If you want to replace only when the first variable is called kelimeler, change the search to:
(^kelimeler\[(\d+)\]=[^;]+;\w+\[)[^]]+
If you want to replace only when the first variable is called kelimeler and the second variable is called specialvar, use:
(^kelimeler\[(\d+)\]=[^;]+;specialvar\[)[^]]+
You could just use a simple script, for example in JavaScript:
var x=10;
for (var i=0;i<x;i++) {
console.log('var['+i+'];');
}
with var x being the amount of rows you want to have
Then simply copy the logged output from your console.
Using such repetitive code does look awfully inefficient though. Almost every respectable programming/scripting language has some kind of incremental looping built in already. What is it you're trying to accomplish with this code? There is probably an easier way to do this.

Making Dreamweaver more like Notepad++

I'm moving to Dreamweaver from Notepad++, and while Dw does have many better features than Notepad++, there are a few that I'm really missing.
Is there a way to make the "Home" key on the keyboard take you to the front of where the code starts, instead of the very front of the line? In Notepad++ this is how it works by default, and I don't know why anyone would want to go to the very front of the line instead of the front of the code. I use tabbing to keep it more organized, so this feature is really important to me.
How do I duplicate a line in Dw? In Notepad++ I can select the line and press ctrl + d and it automatically duplicated the code. This is awesome for something like a gallery or a table where I don't want to have to type out every line because it's so similar.
Less important, as I don't use this that often, but can you vertically select in Dw? In Notepad++ you can hold down alt and select lines vertically. Ex:
http://dl.dropbox.com/u/12147973/vert-select.jpg
Thanks in advance.
For #2, check out the Code Extras extension for Dreamweaver
No Longer works in DW5.5; Try here - http://yoropan.com/en/archives/544
I was also wanting some of this features... I discovered that, at least in CS6, #2 is already in Dreamweaver, but the shortcut is Ctrl+Alt+Down ou Up, depending on the direction that you wanna duplicate the code.
Note that I had to disable the shortcut that turns your screen view for that to work. (It's an intel default, press Ctrl+Alt+f12 to open the options)
And tãa dãaa... IT WORKS! :D
I want to say one thing different. My Dreamweaver theme (Users who use Dreamweaver after use Notepad++). Download Dreamweaver.xml
"Dreamweaver.xml" file is in here for windows: C:\Program Files\Notepad++\themes\Dreamweaver.xml
The answer to #1 = Ctrl+Home in anything in windows will take you to the absolute start of the documents, same as Ctrl+End, Home and End to start and finish of lines, Ctrl+Left or Right arrow to jump entire words...
I too am on the quest for duplicating lines in DW. #3 your image no longer shows.
If I want to duplicated a line I click on the line number, then CTRL+C to copy and CTRL+V to paste. Is that what you're looking for or am I being simple?