https://github.com/longbridge/stock-parser

Stock parser
https://github.com/longbridge/stock-parser

Last synced: 7 months ago
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Stock parser

• Host: GitHub
• URL: https://github.com/longbridge/stock-parser
• Owner: longbridge
• Created: 2023-02-17T10:43:59.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2024-07-25T03:19:27.000Z (almost 2 years ago)
• Last Synced: 2025-01-10T04:13:07.503Z (over 1 year ago)
• Language: Go
• Homepage:
• Size: 80.1 KB
• Stars: 1
• Watchers: 10
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Stock Parser

This is [Ticker symbol](https://en.wikipedia.org/wiki/Ticker_symbol) parse example to show how to write a parser in Go and Rust (Pest, Nom, rust-peg).

And run benchmarks to compare the performance.

## Usage

```go

// social-service example

package main

import (

  "fmt"

  stock_parser "github.com/longbridgeapp/stock-parser"

)

func main() {

  out := Parse("看好 $BABA 和 $XPEV 未来有好的增长")

  fmt.Println(out)

  // 看好 $阿里巴巴.US 和 $X小鹏汽车.US 未来有好的增长

}

func Parse(ctx context.Context, body string) string {

  // preproccess

  out := body

  body = preprocess(body)

  // Use with StockInfo SDK

  _ = stock_parser.Parse(body, func(code, market, match string) string {

    if stock, ok := StockInfoSDK.GetCounterId(code, market); ok {

      s := fmt.Sprintf(`$%s.%s`, stock.CounterId, stock.Name, stock.Name, stock.Market)

      // 替换

      out = strings.ReplaceAll(out, match, s)

    }

    return out

  })

  return out

}

```

### Benchmark in Go

```

Benchmark-8         	  489860	      2729 ns/op

Benchmark_long-8    	   64664	     21624 ns/op

Benchmark_large-8   	    1910	    589914 ns/op

```

## Development in Go

Use [https://github.com/pointlander/peg](https://github.com/pointlander/peg)

```sh

go install github.com/pointlander/peg

```

And then run `make` to generate `grammar.peg` into `grammar.go`.

> NOTE: Please do not change `grammar.go`.