Nakano Kenji
87aff43e63
- Add Mustache vars/render + Text Input helpers - Add JSON Parse + Prompt JSON Unpack (typed outputs + vars) - Add Markdown Preview (marked + DOMPurify) - Add Anima prompt/scheme docs + example workflow - Add GitHub Wiki auto-publish workflow (docs/wiki -> wiki)
48 lines
1.3 KiB
Python
48 lines
1.3 KiB
Python
"""
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Template utilities for SimpleChat.
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Currently provides a lightweight Mustache-style replacement:
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- Replace {{ key }} with vars[key] (stringified).
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- Unmatched placeholders are left as-is by default (easier debugging).
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"""
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from __future__ import annotations
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import re
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from typing import Any, Mapping
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_MUSTACHE_RE = re.compile(r"\{\{\s*([^\{\}\n]+?)\s*\}\}")
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def render_mustache(text: str, vars: Mapping[str, Any] | None, *, keep_unmatched: bool = True) -> str:
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"""
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Render {{var}} placeholders in text using vars mapping.
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Args:
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text: Input text (any string field).
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vars: Mapping of variable name -> value. Values will be stringified.
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keep_unmatched: If True, keep unknown placeholders like {{foo}} unchanged.
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"""
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if not isinstance(text, str) or not text:
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return text
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# Fast path: avoid regex unless needed
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if "{{" not in text or "}}" not in text:
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return text
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if not vars or not isinstance(vars, Mapping):
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return text
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def _repl(match: re.Match) -> str:
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key = match.group(1).strip()
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if not key:
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return match.group(0) if keep_unmatched else ""
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if key in vars:
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value = vars.get(key)
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return "" if value is None else str(value)
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return match.group(0) if keep_unmatched else ""
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return _MUSTACHE_RE.sub(_repl, text)
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