MetaphonePtBr 2.0.0

.NET Standard 2.1 This package targets .NET Standard 2.1. The package is compatible with this framework or higher. 
dotnet add package MetaphonePtBr --version 2.0.0
                    


                    

                
NuGet\Install-Package MetaphonePtBr -Version 2.0.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="MetaphonePtBr" Version="2.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="MetaphonePtBr" Version="2.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="MetaphonePtBr" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add MetaphonePtBr --version 2.0.0
                    


                    

                
#r "nuget: MetaphonePtBr, 2.0.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package MetaphonePtBr@2.0.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=MetaphonePtBr&version=2.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=MetaphonePtBr&version=2.0.0
                    


                            Install as a Cake Tool

MetaphonePtBr

License Issues open Issues closed Pull requests open Pull requests closed NuGet Downloads

What is it?

MetaphonePtBr is a text transformation algorithm based on phonetic rules of the Brazilian Portuguese language.

How to use?

First, add the NuGet package to the desired project.

Then, on any string containing a single word:

var metaphoneToken = "Word".GetMetaphoneToken();

It is just that!

How it works?

Basically, it gets the metaphone token from the single PT-BR word.

For instance, the name Cristopher and the following variations have the same KSF metaphone token:

  • Christofer
  • Christofr
  • Christopher
  • Christophr
  • Cristofer
  • Cristofr
  • Cristophr

In other words, the metaphone token is the core letters that identify the word by the way it sound. It can be very useful for searches like names, addresses, products, brands and many more when:

  • Looking for similar word
  • Looking for a specific word, even though it was slightly misspelled

While iterating through the letters of the word, depending on the current letter, the algorithm considers:

  • The current index
  • *The next letter
  • *The first letter after the next letter
  • *The previous letter
  • *The first letter before the previous letter

*If there is.

The rules

Symbol Meaning
Letter Letter
ˆ Begin of the word
$ End of the word
[] One occurrence of any
v Any vowel
c Any consonant
. Any letter
0 Bypass
  • The default rule among all the following mutable letters is to keep it as it is, so this rule has not been mapped, except for bypass cases
  • All the following rules are ordered by priority
C
Rule Result
C[AOUc] K
C[EI] S
CHR K
CH X
C$ K
Ç S
G
Rule Result
G[AOU] G
G[EI] J
GH[EI] J
GH[c] G
H
Rule Result
ˆH[v] v
H 0
Immutables
Rule Result
B B
D D
F F
J J
K K
M M
V V
L
Rule Result
L[v] v
LH 0
N
Rule Result
N$ M
NH 0
P
Rule Result
PH F
Q
Rule Result
Q K
R
Rule Result
^R 0
R$ 0
RR 0
S
Rule Result
SH X
SC[EI] S
SC[AOU] SK
SCH X
S[c] S
T
Rule Result
TH T
Vowels
Rule Result
ˆ[v] v
W
Rule Result
W[LRv] V
W[c] 0
X
Rule Result
X$ X
^EX[v] Z
.EX[v] X
[CGKLRXv][AIOU]X X
[DFMNPQSTVZ][AIOU]X KS
EX[EI] X
EX[CPT] S
EX[.] KS
Y
Rule Result
Y I
Z
Rule Result
Z$ S

Credits

This project is a .NET library based on this project by Carlos Costa Jordão.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.1 is compatible. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

  • .NETStandard 2.1

    • No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last Updated
2.0.0 131 9/2/2025