Add CSV export of mariage table and merged GEDCOM

- export_mariages_csv.py : extrait la table `mariage` depuis basesgen.sql
  en 4 fichiers CSV classés par type d'acte (BMS, CM+TABLE CM,
  TABLE MARIAGES, ETAT CIVIL) ; ajoute 4 colonnes dérivées
  PERE/MERE_EPOUX/EPOUSE_DECEDE(E) détectées via le suffixe '+' sur les
  noms de parents ; encodage UTF-8 (corrige la lecture latin-1 initiale
  qui produisait des artefacts type "Félix")
- csv_export/ : 4 fichiers générés (380 892 enregistrements au total)
- merge_gedcom.py : fusionne les GEDCOM individuels en renumérotant les
  identifiants INDI/FAM pour éviter les collisions
- lignees.ged : fusion des 16 exports (4 299 individus, 1 484 familles)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

merge_gedcom.py

@@ -0,0 +1,113 @@
+#!/usr/bin/env python3
+"""Merge multiple GEDCOM files into one, renumbering INDI and FAM IDs to avoid collisions."""
+
+import glob
+import os
+import re
+import sys
+
+INPUT_DIR = "gedcom_output"
+OUTPUT_FILE = "lignees.ged"
+
+def parse_gedcom(path):
+    """Return (header_note, records) where records is a list of raw record strings."""
+    with open(path, encoding="utf-8") as f:
+        content = f.read()
+
+    lines = content.splitlines()
+    records = []
+    current = []
+    header_note = ""
+
+    for line in lines:
+        if line.startswith("0 "):
+            if current:
+                tag = current[0]
+                if tag == "0 HEAD":
+                    # Extract the NOTE line for source tracking
+                    for l in current:
+                        if l.startswith("1 NOTE "):
+                            header_note = l[7:]
+                elif tag != "0 TRLR":
+                    records.append("\n".join(current))
+            current = [line]
+        else:
+            current.append(line)
+
+    if current and current[0] not in ("0 TRLR", "0 HEAD"):
+        records.append("\n".join(current))
+
+    return header_note, records
+
+
+def renumber_records(records, indi_offset, fam_offset):
+    """Replace @Innnnn@ and @Fnnnnn@ references with offset-adjusted IDs."""
+    def replace_id(m):
+        kind = m.group(1)
+        num = int(m.group(2))
+        if kind == "I":
+            return f"@I{num + indi_offset:04d}@"
+        else:
+            return f"@F{num + fam_offset:04d}@"
+
+    result = []
+    for record in records:
+        renumbered = re.sub(r"@([IF])(\d+)@", replace_id, record)
+        result.append(renumbered)
+    return result
+
+
+def main():
+    ged_files = sorted(glob.glob(os.path.join(INPUT_DIR, "*.ged")))
+    if not ged_files:
+        print(f"No .ged files found in {INPUT_DIR}/", file=sys.stderr)
+        sys.exit(1)
+
+    print(f"Found {len(ged_files)} GEDCOM files to merge.")
+
+    all_records = []
+    indi_offset = 0
+    fam_offset = 0
+    sources = []
+
+    for path in ged_files:
+        basename = os.path.basename(path)
+        note, records = parse_gedcom(path)
+        sources.append(note or basename)
+
+        indi_count = sum(1 for r in records if r.startswith("0 @I"))
+        fam_count = sum(1 for r in records if r.startswith("0 @F"))
+
+        renumbered = renumber_records(records, indi_offset, fam_offset)
+        all_records.extend(renumbered)
+
+        print(f"  {basename}: {indi_count} INDI, {fam_count} FAM  (offset I+{indi_offset}, F+{fam_offset})")
+        indi_offset += indi_count
+        fam_offset += fam_count
+
+    total_indi = sum(1 for r in all_records if r.startswith("0 @I"))
+    total_fam = sum(1 for r in all_records if r.startswith("0 @F"))
+    print(f"\nTotal: {total_indi} INDI, {total_fam} FAM → {OUTPUT_FILE}")
+
+    with open(OUTPUT_FILE, "w", encoding="utf-8") as out:
+        out.write("0 HEAD\n")
+        out.write("1 SOUR BaseCGL\n")
+        out.write("2 NAME CGL Bases généalogiques du Languedoc – basesgen.sql\n")
+        out.write("1 GEDC\n")
+        out.write("2 VERS 5.5.1\n")
+        out.write("2 FORM LINEAGE-LINKED\n")
+        out.write("1 CHAR UTF-8\n")
+        out.write("1 NOTE Lignées CGL – fusion de 16 exports GEDCOM\n")
+        for src in sources:
+            out.write(f"2 CONT {src}\n")
+        out.write("\n")
+        for record in all_records:
+            out.write(record)
+            out.write("\n\n")
+        out.write("0 TRLR\n")
+
+    print("Done.")
+
+
+if __name__ == "__main__":
+    main()