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Arguments · 9

1. #1b58demo
2. #2README.md
3. #3# `gno.land/r/moul/x/daily/b58demo/v0` Interactive gnoweb **demo of the [`p/moul/x/daily/b58`](https://github.com/moul/gno-contracts/tree/main/p/moul/x/daily/b58/v0) Base58 library** — it renders the alphabet, a gallery of worked examples, and a hex → Base58 round-tripper. It has no codec logic of its own. Append a hex string to the path to encode/round-trip it, e.g. [`/r/moul/x/daily/b58demo/v0:deadbeef`](https://gno.land/r/moul/x/daily/b58demo/v0:deadbeef). <!-- BEGIN GNOCONTRACTS FOOTER (generated by `make readmes`; do not edit below) --> --- Part of **[moul/gno-contracts](https://github.com/moul/gno-contracts)** — moul's versioned gno.land contracts. See the repository for the full catalog, build/test tooling, and usage. **Dependency graph:**  > 🧪 **Highly experimental — potentially vibe-coded.** Not audited; may break, change, or be removed at any time. Do not use with anything of value. Full disclaimer: [DISCLAIMER](https://github.com/moul/gno-contracts/blob/main/DISCLAIMER.md). <!-- END GNOCONTRACTS FOOTER -->
4. #4b58demo.gno
5. #5// Package b58demo is a small gnoweb demo of the Base58 codec provided by the // [p/moul/x/daily/b58](/p/moul/x/daily/b58/v0) library: it renders the alphabet, // a gallery of worked examples, and an interactive hex → Base58 round-tripper. // // It contains no codec logic of its own — everything comes from `b58.Encode`, // `b58.Decode` and `b58.Alphabet`. package b58demo import ( "encoding/hex" "strings" "gno.land/p/moul/x/daily/b58/v0" ) // Render produces the gnoweb Markdown view. // // - "/" → the alphabet + a small gallery of worked examples. // - "/<hex>" → decode the hex input to bytes, show its Base58, and the // hex-encoded decoded round-trip to prove Encode/Decode are inverse. func Render(path string) string { arg := strings.TrimPrefix(path, "/") arg = strings.TrimSpace(arg) if arg == "" { return renderHome() } return renderHex(arg) } func renderHome() string { var sb strings.Builder sb.WriteString("# Base58 (Bitcoin alphabet)\n\n") sb.WriteString("Demo of the [`p/moul/x/daily/b58`](/p/moul/x/daily/b58/v0) library — ") sb.WriteString("base conversion from raw bytes (base-256) to base-58, using the ") sb.WriteString("Bitcoin alphabet (no `0`, `O`, `I`, `l`), pure byte-slice math, no `math/big`.\n\n") sb.WriteString("## Alphabet\n\n") sb.WriteString("```\n") sb.WriteString(b58.Alphabet) sb.WriteString("\n```\n\n") sb.WriteString("58 characters, index 0…57.\n\n") sb.WriteString("## Examples\n\n") sb.WriteString("| input (utf-8) | hex | Base58 |\n") sb.WriteString("|---|---|---|\n") examples := []string{"", "hello world", "gno.land", "Bitcoin"} for _, e := range examples { h := hex.EncodeToString([]byte(e)) if h == "" { h = "(empty)" } label := e if label == "" { label = "(empty)" } sb.WriteString("| `" + label + "` | `" + h + "` | `" + b58.Encode([]byte(e)) + "` |\n") } sb.WriteString("\n") sb.WriteString("Leading zero bytes → leading `1`s:\n\n") sb.WriteString("| bytes | Base58 |\n|---|---|\n") sb.WriteString("| `[0x00]` | `" + b58.Encode([]byte{0}) + "` |\n") sb.WriteString("| `[0x00 0x00 0x00]` | `" + b58.Encode([]byte{0, 0, 0}) + "` |\n\n") sb.WriteString("## Try it\n\n") sb.WriteString("Append a hex string to the path to encode/round-trip it:\n\n") sb.WriteString("- `/68656c6c6f` — the bytes for \"hello\"\n") sb.WriteString("- `/00000000` — four zero bytes\n") sb.WriteString("- `/deadbeef`\n") return sb.String() } func renderHex(arg string) string { var sb strings.Builder sb.WriteString("# Base58 — round-trip\n\n") sb.WriteString("[← alphabet & examples](/r/moul/x/daily/b58demo/v0)\n\n") raw, err := hex.DecodeString(arg) if err != nil { sb.WriteString("**Invalid hex input.**\n\n") sb.WriteString("`" + arg + "` is not a valid hex string. ") sb.WriteString("Provide an even number of hex digits, e.g. `/deadbeef`.\n") return sb.String() } encoded := b58.Encode(raw) decoded := b58.Decode(encoded) roundTrip := hex.EncodeToString(decoded) inHex := arg if inHex == "" { inHex = "(empty)" } outHex := roundTrip if outHex == "" { outHex = "(empty)" } enc := encoded if enc == "" { enc = "(empty)" } sb.WriteString("| step | value |\n|---|---|\n") sb.WriteString("| hex input | `" + inHex + "` |\n") sb.WriteString("| bytes | `" + byteList(raw) + "` |\n") sb.WriteString("| **Base58** | `" + enc + "` |\n") sb.WriteString("| decoded (hex) | `" + outHex + "` |\n\n") if roundTrip == arg { sb.WriteString("✓ Round-trip matches: `Decode(Encode(x)) == x`.\n") } else { sb.WriteString("✗ Round-trip mismatch.\n") } return sb.String() } // byteList renders a byte slice as a compact space-separated hex list. func byteList(b []byte) string { if len(b) == 0 { return "(none)" } const digits = "0123456789abcdef" out := make([]byte, 0, len(b)*3) for i, c := range b { if i > 0 { out = append(out, ' ') } out = append(out, digits[c>>4], digits[c&0x0f]) } return string(out) }
6. #6gnomod.toml
7. #7module = "gno.land/r/moul/x/daily/b58demo/v0" gno = "0.9"
8. #8/gno.MemPackageType
9. #9 MPUserProd