Bulk replace in M language

[irishguurl]

I have a table that has project names and numbers in seperate columns.  I have grouped the columns together but I have multiple instances of the same project and with different names.  For example:

U0133 SCADA at LLV-Sewer

U0133 SCADA at LLV-Water

U0133 SCADA Upgrades at Lake LV

U0143 Radio Repeater P/C-Sewer

U0143 Radio Repeater P/C-Water

U0143 Radio Repeater Power/Comm

U0171 Via Nobila Utilities

U0171 Via Nobila-Sewer

U0171 Via Nobila-Water

U0180 DUS Space Needs Assessment

U0180 Space Needs Assessment-sewer

U0180 Space Needs Assessment-water

I want the main project to be the primary name.  So the -water and - sewer would go away.  Since the names aren't all pretty I'm not sure how to go about replacing.  Thoughts?  

[Vijay_A_Verma]

You can use following in a custom column and then delete the original column

try Text.Start([Project],Text.PositionOf([Project],"-")) otherwise [Project]

For column inplace replace, use following code (change Source with your last step)

Table.ReplaceValue(Source,each [Project], each try Text.Start([Project],Text.PositionOf([Project],"-")) otherwise [Project],    Replacer.ReplaceValue,{"Project"})

[irishguurl]

I believe I can replace the -water and -sewer part through the replace option in the tool bar.  What complicates things is the base name of the project differs. See example below:

U0143 Radio Repeater P/C-Sewer

U0143 Radio Repeater P/C-Water

U0143 Radio Repeater Power/Comm

Ideally, I would want U0143 Radio Repeater Power/Comm to be the project name for all 3 versions.  Does that make more sense?  This issue occurs for many projects.

[Vijay_A_Verma]

Either we need a list of replacement words or some convention to identify...For example -

U0133 SCADA at LLV-Sewer
U0133 SCADA at LLV-Water
U0133 SCADA Upgrades at Lake LV

Whether name will be U0133 SCADA Upgrades at Lake LV or U0133 SCADA at LLV
U0171 Via Nobila Utilities
U0171 Via Nobila-Sewer
U0171 Via Nobila-Water

What will name will it be U0171 Via Nobila or U0171 Via Nobila Utilities?

[irishguurl]

I think it would be easier to replace with whatever is before the -water or -sewer.  So in the case of the examples you show, it would be U0133 SCADA at LLV and U0171 Via Nobila.  

[Vijay_A_Verma · Accepted solution]

Here is the solution based on Fuzzy matching with a sensitivity of 0.5. Download example file from https://1drv.ms/x/s!Akd5y6ruJhvhuTWHGs0sOgEVhYHd?e=3nFBvL 

let
    Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
    #"Filtered Rows" = Table.SelectRows(Source, each Text.Contains([Data], "-")),
    #"Extracted Text Before Delimiter" = Table.TransformColumns(#"Filtered Rows", {{"Data", each Text.BeforeDelimiter(_, "-"), type text}}),
    #"Removed Duplicates" = Table.Distinct(#"Extracted Text Before Delimiter"),
    #"Merged Queries" = Table.FuzzyNestedJoin(Source, {"Data"}, #"Removed Duplicates", {"Data"}, "Removed Duplicates", JoinKind.LeftOuter, [IgnoreCase=true, IgnoreSpace=true, NumberOfMatches=1, Threshold=0.5]),
    #"Expanded Removed Duplicates" = Table.ExpandTableColumn(#"Merged Queries", "Removed Duplicates", {"Data"}, {"Removed Duplicates.Data"})
in
    #"Expanded Removed Duplicates"

[CNENFRNL]

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("dc7LCoMwEIXhVzm4rmix0G5FlyLFoF2Ii2kdSqg24gR8/d4QDKTr82X+tG1Qx/skgcrSPAVZFEUTKl54Drqdd7yQ9Yz1dJ+pZ/kqejCKZjWHBBX12qDiiT+PcY4yt+EnTslDzPtClJlxXM1xj0YTSnPVA6G2etBWs3hn9wPu5IRPMfJaQU10Y5TMvSAVYZGRn3aD/CCUbeY/W37J7gU=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Project = _t]),
    Removal = Table.TransformColumns(Source, {"Project", each let pos=Text.PositionOf(_, "-", Occurrence.First) in if pos>-1 then Text.ReplaceRange(_, pos, 10, "") else _})
in
    Removal

[HotChilli]

You could split the column by delimiter (on -)  ,if that holds as a rule

or

a replace -sewer (or whatever) with nothing .

Both options are a right-click on the column header in Power Query