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