linkdotnet / golang-stringbuilder

A string builder that has similar capabilities as the one from C#.

Welcome

Hey lot, my name is Steven and I am a .NET developer based in Zurich. Welcome to my public page. I am most likely interested in new technologies. If you want to know more just check out the links down below.

I also have a blog here and if you are interested in the source code of it, here you go.

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golang-stringbuilder's Issues

`StringBuilder` should work with Unicode characters

Currently, the StringBuilder only supports 1-byte characters. If a user adds an emoji, the builder can fall apart entirely.

Add `Trim`, `TrimStart` and `TrimEnd` to the StringBuilder

Trimming whitespaces is a typical operation for strings.

Possible API surface:

func (s *StringBuilder)  Trim(chars ...rune) *StringBuilder {}
func (s *StringBuilder)  TrimStart(chars ...rune) *StringBuilder {}
func (s *StringBuilder)  TrimEnd(chars ...rune) *StringBuilder {}

If chars is empty we trim whitespace from the StringBuilder.

v1

This should be a container for things we want to tackle for v1. If we can’t find other topics, we can merge v1 into main and release it.

Upgrade go.mod to `1.21`

With the v1 release we can bump the go-version to 1.21.
This change has to be also made inside the workflow files

Feature Request: reverse StringBuilder functionality

Languages such as Java support a reverse functionality to their StringBuilder implementation.
https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html#reverse--

For example:

sb.Append("a").Append("b").Reverse().ToString() -> "ba"

Epic: Make String Builder thread safe

This is a multi-step effort to make string builder thread-safe and allow users to use it in a multi-threaded environment.

Keeping this open for discussion and narrow down on what particular tasks need be accomplished in order to convert the current implementation to a thread-safe implementation.

Add new method SetRuneAt

I am going to save stringbuilders within Pool and reuse them

func (s *StringBuilder) SetRuneAt(pos int, val rune) error 

error for wrong pos (don't expect grow)

Also for reusing:

func (s *StringBuilder) Rewind()
func (s *StringBuilder) Skip(n count) error

Feature Request: Substring from StringBuilder

Copy a sub string from StringBuilder to an external data structure such as Array

https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html#getChars-int-int-char:A-int-

sb = sb.Append("a").Append("b").Append("c")
r := make([]rune, 2)
sb.Substring(0,2,r) -> "ab"

Feature Request: Make Append operation return *StringBuilder to facilitate chaining

Typical functionality of a builder function consists of chaining operation. The exisitng implementation of Append function can be modified to return *StringBuilder. This will facilitate chaining operation and end up resulting in cleaner code.

For example current sample code is as below:

sb := Text.StringBuilder{}
sb.Append("Hello")
sb.Append(" ")
sb.Append("World")
fmt.Println(sb.ToString())

With the updated feature, above code will look like:

sb := Text.StringBuilder{}
s := sb.Append("Hello").Append(" ").Append("World").ToString()
fmt.Println(s)

I will be happy to add a POC implementation for this feature and can extend the implementation to other Append functions in future.

Let me know what you think @linkdotnet