REGEXVAULTv2.0
Finance/Currency & Money
Verified Safe

Price/Quote with Tick Size Regex for Go

/^[0-9]+(?:\.[0-9]{1,8})?$/

What this pattern does

This page provides a lightweight, single-purpose regular expression for matching price/quote with tick size, ported and verified for Go. Financial data validation has zero tolerance for false negatives — a missed invalid entry can corrupt downstream calculations. The snippet below is ready to drop into your Go project — whether you're validating in a Gin handler, a gRPC service, or a command-line tool.

Go Implementation

Go
// Price/Quote with Tick Size
// ReDoS-safe | RegexVault — Finance > Currency & Money

package validation

import "regexp"

var pricequoteWithTickSizeRe = regexp.MustCompile(`^[0-9]+(?:\.[0-9]{1,8})?$`)

func ValidatePricequoteWithTickSize(s string) bool {
    return pricequoteWithTickSizeRe.MatchString(s)
}

// Example
// fmt.Println(ValidatePricequoteWithTickSize("1.2345")) // true

Test Cases

Matches (Valid)
Rejects (Invalid)
1.23451.234567890
1.23456789.50
100-1.50
0.000000011,234.50
42000.50NaN
1.0000Infinity

When to use this pattern

This pattern is drawn from the Finance > Currency & Money category and carries a ReDoS-safe certification. That matters for Go developers because Go's RE2 engine is inherently safe from catastrophic backtracking, but this pattern has been additionally verified for correctness. RegexVault audits patterns against known backtracking attack vectors, ensuring you have the necessary context before using this regex in a high-stakes production environment.

Common Pitfalls

Never store financial prices as IEEE 754 floating point — use decimal or integer (storing in smallest unit: cents/satoshis). Python's Decimal, Java's BigDecimal, or Postgres' NUMERIC type.

Technical Notes

Up to 8 decimal places covers BTC satoshi precision (0.00000001 BTC = 1 satoshi). FX prices conventionally use 4-5 decimal places (pips). Equities use 2. Reject negative prices at application level.

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