# Expectations with a Text Pattern
Pointblank Validation
2026-07-13|17:45:56 Polars
STEP COLUMNS VALUES TBL EVAL UNITS PASS FAIL W E C EXT
#4CA64C 1
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" /> col_vals_regex()
b ^\d-[a-z]{3}-\d{3}$ ✓ 13 13
1.00		 0
0.00		 -- -- -- --
#4CA64C 2
col_vals_regex()
f high|low|mid ✓ 13 13
1.00		 0
0.00		 -- -- -- --
2026-07-13 17:45:56 UTC< 1 s2026-07-13 17:45:56 UTC
``` python import pointblank as pb validation = ( pb.Validate( data=pb.load_dataset(dataset="small_table", tbl_type="polars") ) .col_vals_regex(columns="b", pattern=r"^\d-[a-z]{3}-\d{3}$") # check pattern in 'b' .col_vals_regex(columns="f", pattern=r"high|low|mid") # check pattern in 'f' .interrogate() ) validation ``` Preview of Input Table
PolarsRows13Columns8
date_time Datetime
date Date
a Int64
b String
c Int64
d Float64
e Boolean
f String
1 2016-01-04 11:00:00 2016-01-04 2 1-bcd-345 3 3423.29 True high
2 2016-01-04 00:32:00 2016-01-04 3 5-egh-163 8 9999.99 True low
3 2016-01-05 13:32:00 2016-01-05 6 8-kdg-938 3 2343.23 True high
4 2016-01-06 17:23:00 2016-01-06 2 5-jdo-903 None 3892.4 False mid
5 2016-01-09 12:36:00 2016-01-09 8 3-ldm-038 7 283.94 True low
6 2016-01-11 06:15:00 2016-01-11 4 2-dhe-923 4 3291.03 True mid
7 2016-01-15 18:46:00 2016-01-15 7 1-knw-093 3 843.34 True high
8 2016-01-17 11:27:00 2016-01-17 4 5-boe-639 2 1035.64 False low
9 2016-01-20 04:30:00 2016-01-20 3 5-bce-642 9 837.93 False high
10 2016-01-20 04:30:00 2016-01-20 3 5-bce-642 9 837.93 False high
11 2016-01-26 20:07:00 2016-01-26 4 2-dmx-010 7 833.98 True low
12 2016-01-28 02:51:00 2016-01-28 2 7-dmx-010 8 108.34 False low
13 2016-01-30 11:23:00 2016-01-30 1 3-dka-303 None 2230.09 True high