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Remove parentheses from data using field calculator.

TerryMergl

Good morning.

I am not real savvy with field calculator. We have a couple fields that contain service address information. Someone opted to add additional information enclosed by parentheses in this field. I need to remove the parentheses and data within. Any advice or suggestions appreciated.

Thanks

Terry

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DanPatterson_Retired

yes, I used to use them, but they changed in python 3.x so I just lost track of what applied to where

rscheitlin

Dan,

Actually James's regex gets all the string(s) between the ()s. RegEx is very powerful for stuff like this.

DanPatterson_Retired

you missed the bit I did earlier... the stuff between the braces needs to be removed as well

JamesMacKay3

Using the Python interpreter, import the regular expression module (re) in the pre-logic script code block (click on Show Codeblock to open this):

import re<SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN>

Then use a substitution along the lines of this:

re.sub(r"\([^\)]+\)", "", !ServiceAddr!)<SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN>

Should work fine with multiple pairs of parentheses but will likely need to be tweaked if you've got nested pairs.

DanPatterson_Retired

well the other function you might use.... but

Keep between the brackets

fld <SPAN class="operator token">=</SPAN> <SPAN class="string token">"some stuff (the stuff) with more"</SPAN>

fld<SPAN class="punctuation token">.</SPAN>split<SPAN class="punctuation token">(</SPAN><SPAN class="string token">")"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">.</SPAN>split<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"("</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="number token">1</SPAN><SPAN class="punctuation token">]</SPAN>

<SPAN class="comment token"># yields</SPAN>

<SPAN class="string token">'the stuff'</SPAN>

<SPAN class="comment token"># just replace fld with !YourFieldName!</SPAN>
‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

Dump between the brackets

fld <SPAN class="operator token">=</SPAN> <SPAN class="string token">"some stuff (the stuff) with more"</SPAN>

fld<SPAN class="punctuation token">.</SPAN>split<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"("</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">.</SPAN>strip<SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="operator token">+</SPAN> fld<SPAN class="punctuation token">.</SPAN>split<SPAN class="punctuation token">(</SPAN><SPAN class="string token">")"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="number token">1</SPAN><SPAN class="punctuation token">]</SPAN>

<SPAN class="string token">'some stuff with more'</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

DanPatterson_Retired

ahh missed that bit

TerryMergl

Thank you Dan.

What happened is when the service address got populated, someone added additional info between the parentheses in the same field, rather than using an address2 field

I don't need to save that info, just remove it.

Thank you

TerryMergl

Thank you Robert. I'll give it a shot.

rscheitlin

Dan,

What about the data within?

I need to remove the parentheses and data within

DanPatterson_Retired

Terry a little function for the field calculator

Python parser of course

expression box .... brace(!YourFieldNameHere!)

code block

<SPAN class="keyword token">def</SPAN> <SPAN class="token function">brace</SPAN><SPAN class="punctuation token">(</SPAN>fld<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp; <SPAN class="string token">"""replace brackets"""</SPAN>
&nbsp;&nbsp;&nbsp; a <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">[</SPAN><SPAN class="string token">'['</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">']'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'{'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'}'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'('</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">')'</SPAN><SPAN class="punctuation token">]</SPAN>
&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">for</SPAN> i <SPAN class="keyword token">in</SPAN> a<SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fld <SPAN class="operator token">=</SPAN> fld<SPAN class="punctuation token">.</SPAN>replace<SPAN class="punctuation token">(</SPAN>i<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">""</SPAN><SPAN class="punctuation token">)</SPAN>
&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">return</SPAN> fld<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

of course you are putting the result in a new text field of appropriate width

rscheitlin

Terry,

Using VBScript in the field calculator you just use Mid([yourfieldname], 1, (InStr([yourfieldname],"(") - 1))

This will look in the thread for the first occurance of "(" and take everything before the "(" and use it for the field calc.

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