Help locating a letter and number string

Angela Davis

Hello Everybody. I am looking to sort some G code and am having a bit of trouble figuring out how to find certain lines

One line might read:

N106 G0 X-.3352 Y.103

I need to be able to find the section above where the digit after “X” can be positive or negative and may or may not include a decimal place and can vary in length
The “Y” number has the same restrictions

I want to locate: GO X(whatever is here) Y(whatever is here)

The “N” number before is irrelevant to me and i DONT want it included in the selection

Any help would be greatly appreciated!

Thanks,

Jeff

PeterJones

So, this selects the X through the end of the Y’s number: G0 X[-+]*\d*\.*\d+ Y[-+]*\d*\.*\d+:

match must start with G0 followed by one space , but don’t include that prefix in the highlighted match
- if it’s really G0 - G9, not just G0, then it can be changed to to G\d
- if it’s actually G followed by one or more digits, use to G\d+
literal X
followed by zero or more literal pluses and minuses (so X-.3352 or X+.3352 or X.3352)
followed by zero or more digits (this allows X+.3352 or X+52.33)
followed by optional literal period (being optional means it will also match X-3352)
followed by one or more digits
followed by a literal space
then followed by a literal Y, with the same sign, digits, points, digits requirements as the X had

For more information, study the docs listed in the regex faq.

If this doesn’t solve your problem, please provide more info. You’ll notice in my description, there was some mention of places where your specification had ambiguity, and I was making a best guess. Additional examples of lines that should match and providing lines that shouldn’t match will help make the .

[edit/PS: regular expressions must be enabled; sorry I forgot to mention]

Angela Davis

@PeterJones said:

G0 X[-+]\d.\d+ Y[-+]\d*.*\d+

WOW!, Spot on.
Well done. Thank you very much for taking the time to help me and also write a description. The description is very helpful.

Angela Davis

Also, is there a way to switch lines in regex? For example CtrlT in the shortcut commands will swap a line with its above line; but i cant figure out how to do this thru search and replace.

guy038

Hello, @angela-davis

Assuming there is NO condition on the choice of lines, this following regex S/R swaps, for instance, the next 2 lines till the final block of two lines of the current file

SEARCH (?-s)^(.*\R)(.+\R)

REPLACE \2\1

So, given the sample text, below, with the cursor located before the string 1A :

1A This is a
1B simple text
2A in order to
2B understand
3A how the
3B text changes

You should get :

1B simple text
1A This is a
2B understand
2A in order to
3B text changes
3A how the

Best regards,

guy038