fix(founding-wizard): nested IF-Bloecke korrekt aufloesen (innermost-first)
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This commit is contained in:
Benjamin Admin
2026-05-20 19:21:08 +02:00
parent f08eb71480
commit badb356740
2 changed files with 56 additions and 7 deletions
@@ -15,13 +15,19 @@ from __future__ import annotations
import re
from typing import Any
# Pattern fuer {{#IF FLAG}}...{{/IF}} und {{#IF NOT FLAG}}...{{/IF}}
# Greedy / non-overlapping. Inhalt darf alles enthalten ausser einem geschlossenen {{/IF}}.
IF_BLOCK = re.compile(
r"\{\{#IF\s+(NOT\s+)?([A-Z_][A-Z0-9_]*)\}\}(.*?)\{\{/IF\}\}",
# Innerste {{#IF FLAG}}...{{/IF}}-Bloecke (Content enthaelt KEIN weiteres {{#IF).
# Iteratives Anwenden loest Verschachtelung von innen nach aussen sauber auf.
IF_INNERMOST = re.compile(
r"\{\{#IF\s+(NOT\s+)?([A-Z_][A-Z0-9_]*)\}\}"
r"((?:(?!\{\{#IF).)*?)" # Content: kein weiteres {{#IF
r"\{\{/IF\}\}",
re.DOTALL,
)
VAR_PATTERN = re.compile(r"\{\{\s*([A-Z_][A-Z0-9_]*)\s*\}\}")
# Fallback: orphan IF-Tags die nach Iteration uebrig sind (z.B. unbalanced template) raus.
ORPHAN_IF_TAG = re.compile(
r"\{\{/IF\}\}|\{\{#IF\s+(?:NOT\s+)?[A-Z_][A-Z0-9_]*\}\}"
)
def _is_truthy(val: Any) -> bool:
@@ -55,7 +61,9 @@ def render_template(template: str, context: dict[str, Any]) -> str:
"""
output = template
for _ in range(10): # max 10 Levels Nesting
# IF-Bloecke iterativ aufloesen — innerste zuerst, dann eine Ebene hoeher, usw.
# Bis zu 20 Iterationen reichen fuer realistisches Nesting.
for _ in range(20):
def replace_if(match: re.Match[str]) -> str:
negated = bool(match.group(1))
flag_name = match.group(2)
@@ -66,11 +74,15 @@ def render_template(template: str, context: dict[str, Any]) -> str:
condition = not condition
return content if condition else ""
new_output = IF_BLOCK.sub(replace_if, output)
new_output = IF_INNERMOST.sub(replace_if, output)
if new_output == output:
break
output = new_output
# Falls noch orphan IF-Tags uebrig sind (z.B. unbalanced template): entfernen
# damit sie nicht im Word-Output landen.
output = ORPHAN_IF_TAG.sub("", output)
def replace_var(match: re.Match[str]) -> str:
name = match.group(1)
val = context.get(name)
@@ -90,6 +102,6 @@ def find_undefined_placeholders(template: str, context: dict[str, Any]) -> list[
placeholders: set[str] = set()
for match in VAR_PATTERN.finditer(template):
placeholders.add(match.group(1))
for match in IF_BLOCK.finditer(template):
for match in IF_INNERMOST.finditer(template):
placeholders.add(match.group(2))
return sorted([p for p in placeholders if p not in context])