Insert sequential numbers at start of lines

deleelee

@Alan-Kilborn said in Insert sequential numbers at start of lines:

You’d want to look for a line-length of zero (e.g. len(line_content) == 0) and then NOT insert a line number at the start of such lines, by appending only the content to the second list. Of course, this would cause gaps in your line numbering any time a blank line occurs, so you might need to maintain the line number counter yourself.

Thanks yet again. I’ll check it out :-D

Ionut Dorin

@Alan-Kilborn I know it’s years later, but i found myself using your script. I’m a total noob when it comes to programming, all i could do is modify what goes after the numbers.
Now, how could i delete what the script just did (i.e delete the numbers, but leave the lines like they were before the script ran) ? I know i can use Undo to do it on the spot, but let’s say i wanna undo the numbering a day after.

Alan Kilborn

@Ionut-Dorin

You don’t need programming to delete the line numbers that were inserted.

Here’s how to do it:

Move the caret to line 1 and column 1
Press Shift+Alt+b to Begin Select in Column mode
Move the caret to the last line and put it right after the last digit of the line number (previously added by the script)
Press Shift+Alt+b again to End Select in Column mode

At this point you should have the line numbers selected in a rectangular block so simply pressing Delete should eliminate them.

Ionut Dorin

@Alan-Kilborn Okay, i knew how to do that, but it does not help me.
First, i’d have to do it twice, because i set the script up to put a number, then :, then a space (5: ), so till 9 its 3 characters long and after is 4 characters long.
And again, i have to do this multiple times in a document, every day and using the column mode is a bit tedious. I was hoping that i could do it with a script.
Now, i select the text i need, press a key and your script instantly does its job. I’d like to have the same thing with deleting, but i don’t know if it’s possible or not. :)

Alan Kilborn

@Ionut-Dorin said in Insert sequential numbers at start of lines:

i set the script up to put a number, then :, then a space (5: ), so till 9 its 3 characters long and after is 4 characters long

It would have been better to just show some of this text rather than describing it…

But I think if you do a replacement operation it will be good?:

Find: ^\d+:
Replace: set to nothing
Search mode: Regular expression
Options: Wrap around
Action: Replace all

You can record this replacement op as a macro.

Ionut Dorin

@Alan-Kilborn
1: Line content
2: Line content
3: Line content
4: Line content
5: Line content
6: Line content
7: Line content
8: Line content
9: Line content
10: Line content
11: Line content
12: Line content
… and to become
Line content
Line content
Line content
Line content
etc.
Find: ^\d+: doesn’t work and plus, i don’t need it for the whole document, just for the lines i select.

Alan Kilborn

@Ionut-Dorin said in Insert sequential numbers at start of lines:

Find: ^\d+: doesn’t work

If you did exactly what I said to do, I see no reason why it wouldn’t work on your sample data.

i don’t need it for the whole document, just for the lines i select.

Ok, so don’t checkmark Wrap around but make your selection first and then checkmark In selection.

Ionut Dorin

@Alan-Kilborn Yes, that did it, I think i read too fast and didn’t see that you said “Search mode: Regular expression” and i didn’t check that, so maybe that’s why it didnt work.
Also, i turned it into a macro for ease of use.
Thank you so much for your help and patience, you’re a lifesaver.

deleelee

@Alan-Kilborn said in Insert sequential numbers at start of lines:

Sure, most anything is possible with programming.

Hi Alan, the scripts have been working really well, thank you so much for your help. One thing I’ve noticed is that, when using the script for selected lines, it has to be a block selection for the script to work. I can’t select individual lines (eg: line 1, line 4, line 7) and insert numbers at that the start of only those lines.

I’ve tried:

Multi-selection using Ctrl + single-click at the start of each line.
Multi-selection using Ctrl + single-click at the start and end of each line.
Multi-selection using Ctrl + double-click to select the first word of each line.

Numbers 1 & 2 don’t actually select any text so when I run the script I get a “No text selected” message.
Number 3 only places a number at the start of the line for the last word I select.

Is it possible or am I expecting more than the script can achieve?

Alan Kilborn

@deleelee

You must be referring to the TextFxInsertLineNumbers.py script, because the other script discussed in this topic, InsertLineNumbersOnLines.py, doesn’t deal with any selected text at all.

Here’s a modified version of the script I’m calling TextFxInsertLineNumbers2.py :

# -*- coding: utf-8 -*-
from __future__ import print_function

# references:
#  https://community.notepad-plus-plus.org/topic/23206/insert-sequential-numbers-at-start-of-lines
#  https://community.notepad-plus-plus.org/topic/23166/faq-desk-how-do-i-replicate-the-features-of-textfx

from Npp import *

#-------------------------------------------------------------------------------

class TFILN2(object):

    def __init__(self):
        handled_line_nbr_list = []
        running_line_nbr = 1
        line_tup_list = []
        for s in range(editor.getSelections()):
            start_line = editor.lineFromPosition(editor.getSelectionNStart(s))
            end_line = editor.lineFromPosition(editor.getSelectionNEnd(s))
            line_tup_list.append((start_line, end_line))
            line_tup_list.sort()
        for (start_line, end_line) in line_tup_list:
            for line_nbr in range(start_line, end_line + 1):
                if line_nbr not in handled_line_nbr_list:
                    line_content = editor.getLine(line_nbr).rstrip('\n\r')
                    editor.replaceLine(line_nbr, '{n:08} {c}'.format(n=running_line_nbr, c=line_content))
                    running_line_nbr += 1
                    handled_line_nbr_list.append(line_nbr)
        editor.setSel(editor.getCurrentPos(), editor.getCurrentPos())

#-------------------------------------------------------------------------------

if __name__ == '__main__': TFILN2()

This version handles all types of selections.

deleelee

@Alan-Kilborn said in Insert sequential numbers at start of lines:

This version handles all types of selections.

Perfect!!! Thank you so much 😁👍

deleelee

@Alan-Kilborn said in Insert sequential numbers at start of lines:

# -*- coding: utf-8 -*-
from __future__ import print_function

# references:
#  https://community.notepad-plus-plus.org/topic/23206/insert-sequential-numbers-at-start-of-lines
#  https://community.notepad-plus-plus.org/topic/23166/faq-desk-how-do-i-replicate-the-features-of-textfx

from Npp import *

#-------------------------------------------------------------------------------

class TFILN2(object):

    def __init__(self):
        handled_line_nbr_list = []
        running_line_nbr = 1
        line_tup_list = []
        for s in range(editor.getSelections()):
            start_line = editor.lineFromPosition(editor.getSelectionNStart(s))
            end_line = editor.lineFromPosition(editor.getSelectionNEnd(s))
            line_tup_list.append((start_line, end_line))
            line_tup_list.sort()
        for (start_line, end_line) in line_tup_list:
            for line_nbr in range(start_line, end_line + 1):
                if line_nbr not in handled_line_nbr_list:
                    line_content = editor.getLine(line_nbr).rstrip('\n\r')
                    editor.replaceLine(line_nbr, '{n:08} {c}'.format(n=running_line_nbr, c=line_content))
                    running_line_nbr += 1
                    handled_line_nbr_list.append(line_nbr)
        editor.setSel(editor.getCurrentPos(), editor.getCurrentPos())

#-------------------------------------------------------------------------------

if __name__ == '__main__': TFILN2()

This version handles all types of selections.

Hi Alan, I absolutely love this script, thank you, and I use it regularly. How would I adapt it so that instead of inserting sequential numbers, it inserts sequential letters? ie: lines begin with a) b) c) etc.

Alan Kilborn

@deleelee said in Insert sequential numbers at start of lines:

How would I adapt it so that instead of inserting sequential numbers, it inserts sequential letters? ie: lines begin with a) b) c) etc

Well, this is “dicey” as you quickly run out of letters.
Typically, you only have a-z, i.e., 26.

So, if you’re only going to run the script on very small files, you could hack the line_list2.append( line to be:

line_list2.append('{n}) {c}'.format(n=chr(97+line_nbr), c=line_content))

But note, this is a real hack, as there’s no check for too many lines.

Mark Olson

If you wanted to not run out of letters, by simply increasing the number of letters by 1 every time to get to z (thus aa would follow z and aaa would follow zz), you could use the code:

num_chars, offset = divmod(line_nbr, 26)
line_list2.append( ( ( num_chars + 1 ) * chr(offset + 97) ) + line_content)

Note that I haven’t actually executed this code as written.