---
id: wiki-2026-0508-ndf-parse
title: ndf-parse
category: 10_Wiki/Topics
status: verified
canonical_id: self
aliases: [NDF Parser, Eugen NDF]
duplicate_of: none
source_trust_level: A
confidence_score: 0.85
verification_status: applied
tags: [parsing, modding, eugen, wargame, ndf]
raw_sources: []
last_reinforced: 2026-05-10
github_commit: pending
tech_stack:
  language: Python
  framework: ndf-parse (Ulibos)
---

# ndf-parse

## 매 한 줄
> **"매 Eugen Systems NDF (Nakami Design File) 의 lossless parser — 매 mod tooling 의 backbone."**. NDF 는 매 Eugen 의 in-house declarative DSL — Wargame, Steel Division, WARNO 매 game data definition 사용. `ndf-parse` (Ulibos) 는 매 round-trip preservation (comments, whitespace, formatting) 의 Python parser.

## 매 핵심

### 매 NDF 구조
- **Object**: `EntityName is TEntityType ( property = value )` — 매 typed object literal.
- **Template**: `template TFoo [Param: int] is TFoo ( ... )` — 매 generic-like.
- **Map**: `MAP[(k, v), ...]` — 매 ordered dictionary.
- **Vector**: `[a, b, c]` — 매 ordered list.
- **GUID/Reference**: `GUID:{...}`, `~/Path/To/Object` — 매 reference.

### 매 ndf-parse 특징
- **AST round-trip**: 매 parse → modify → unparse 후 매 byte-identical (modify X 영역).
- **Visitor / walker**: 매 dataclass-like node tree.
- **CLI**: `ndf` command — 매 batch script.
- **2026 stable**: WARNO modding scene 매 standard.

### 매 응용
1. WARNO mod (unit balance, new factions).
2. Steel Division 2 mod.
3. Automated balance tuning (CSV → NDF script).
4. Diff tool — 매 patch-vs-vanilla compare.

## 💻 패턴

### Install + parse
```python
# pip install ndf-parse
import ndf_parse as ndf

with open('UniteDescriptor.ndf', 'r', encoding='utf-8') as f:
    source = f.read()

tree = ndf.parse(source)  # ndf.model.List
print(len(tree))  # top-level statement count
```

### Walk + find object
```python
for stmt in tree:
    if stmt.kind == 'object' and stmt.name == 'Descriptor_Unit_M1A2_Abrams_US':
        unit = stmt.value
        for member in unit:
            if member.member == 'MaxPhysicalDamages':
                print('HP:', member.value)
```

### Mutate + write back
```python
import ndf_parse as ndf
from ndf_parse import edit

with edit('UniteDescriptor.ndf') as tree:
    for stmt in tree:
        if stmt.kind == 'object' and 'Abrams' in stmt.name:
            for m in stmt.value:
                if m.member == 'MaxPhysicalDamages':
                    m.value = '15'  # buff HP

# `with edit(...)` 매 auto-write back, 매 untouched bytes 보존.
```

### Add new member
```python
from ndf_parse.model import MemberRow

with edit('Ammunition.ndf') as tree:
    for stmt in tree:
        if stmt.name == 'Ammo_Custom_HEAT':
            stmt.value.add(MemberRow(member='HEDamage', value='9'))
```

### Template instantiation lookup
```python
def find_template(tree, name):
    for stmt in tree:
        if stmt.kind == 'template' and stmt.name == name:
            return stmt
    return None
```

### CSV → NDF batch patch
```python
import csv, ndf_parse as ndf
from ndf_parse import edit

balance = {row['unit']: row for row in csv.DictReader(open('balance.csv'))}

with edit('UniteDescriptor.ndf') as tree:
    for stmt in tree:
        if stmt.kind != 'object': continue
        cfg = balance.get(stmt.name)
        if not cfg: continue
        for m in stmt.value:
            if m.member in cfg:
                m.value = cfg[m.member]
```

### Diff vs vanilla
```python
import ndf_parse as ndf
vanilla = ndf.parse(open('vanilla/UniteDescriptor.ndf').read())
modded  = ndf.parse(open('mod/UniteDescriptor.ndf').read())

vanilla_units = {s.name: s for s in vanilla if s.kind == 'object'}
for s in modded:
    if s.kind != 'object': continue
    base = vanilla_units.get(s.name)
    if base and ndf.unparse(base.value) != ndf.unparse(s.value):
        print(f'changed: {s.name}')
```

## 매 결정 기준
| 상황 | Approach |
|---|---|
| 매 single value tweak | `with edit()` context manager |
| 매 large refactor | parse → walk → unparse explicit |
| 매 batch CSV-driven | edit + lookup table |
| 매 lossless preservation 필요 | ndf-parse (regex 의 X) |
| 매 read-only analytics | parse + walk only |

**기본값**: 매 `with edit()` context — 매 mod 작업 80% case.

## 🔗 Graph
- 부모: [[Parser]] · [[AST]]
- 응용: [[WARNO_Modding]] · [[Eugen_Engine]]

## 🤖 LLM 활용
**언제**: 매 Eugen game mod, WARNO balance script, NDF diff/patch tool.
**언제 X**: 매 non-Eugen game (Bethesda Plugin = ESM/ESP, Paradox = PDX script). 매 다른 parser.

## ❌ 안티패턴
- **Regex 으로 NDF 편집**: 매 nested template / comment break. 매 ndf-parse 의 사용.
- **매 unparse 후 manual format**: 매 round-trip 의 손실. 매 ndf-parse 가 매 formatting 보존.
- **매 GUID hard-code**: 매 reference 깨짐. 매 path 의 사용 (`~/Foo/Bar`).

## 🧪 검증 / 중복
- Verified (ndf-parse PyPI, Ulibos GitHub, WARNO modding wiki).
- 신뢰도 A-.

## 🕓 Changelog
| 날짜 | 변경 |
|---|---|
| 2026-05-08 | Phase 1 |
| 2026-05-10 | Manual cleanup — NDF parser API + mod patterns |