Move comment processing to a separate file

novelwriter/text/comments.py

@@ -0,0 +1,68 @@
+"""
+novelWriter – Text Comments
+===========================
+
+File History:
+Created: 2023-11-23 [2.2b1]
+Moved:   2025-02-09 [2.7b1]
+
+This file is a part of novelWriter
+Copyright (C) 2025 Veronica Berglyd Olsen and novelWriter contributors
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <https://www.gnu.org/licenses/>.
+"""
+from __future__ import annotations
+
+from novelwriter.enum import nwComment
+
+MODIFIERS = {
+    "synopsis": nwComment.SYNOPSIS,
+    "short":    nwComment.SHORT,
+    "note":     nwComment.NOTE,
+    "footnote": nwComment.FOOTNOTE,
+}
+KEY_REQ = {
+    "synopsis": 0,  # Key not allowed
+    "short":    0,  # Key not allowed
+    "note":     1,  # Key optional
+    "footnote": 2,  # Key required
+}
+
+
+def _checkModKey(modifier: str, key: str) -> bool:
+    """Check if a modifier and key set are ok."""
+    if modifier in MODIFIERS:
+        if key == "":
+            return KEY_REQ[modifier] < 2
+        elif key.replace("_", "").isalnum():
+            return KEY_REQ[modifier] > 0
+    return False
+
+
+def processComment(text: str) -> tuple[nwComment, str, str, int, int]:
+    """Extract comment style, key and text. Should only be called on
+    text starting with a %.
+    """
+    if text[:2] == "%~":
+        return nwComment.IGNORE, "", text[2:].lstrip(), 0, 0
+
+    check = text[1:].strip()
+    start, _, content = check.partition(":")
+    modifier, _, key = start.rstrip().partition(".")
+    if content and (clean := modifier.lower()) and _checkModKey(clean, key):
+        col = text.find(":") + 1
+        dot = text.find(".", 0, col) + 1
+        return MODIFIERS[clean], key, content.lstrip(), dot, col
+
+    return nwComment.PLAIN, "", check, 0, 0