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diff --git a/src/analysis/scan/context-int.h b/src/analysis/scan/context-int.h
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+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * context-int.h - prototypes internes pour un suivi d'analyses via contextes
+ *
+ * Copyright (C) 2022 Cyrille Bagard
+ *
+ *  This file is part of Chrysalide.
+ *
+ *  Chrysalide 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.
+ *
+ *  Chrysalide 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 Foobar.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#ifndef _ANALYSIS_SCAN_CONTEXT_INT_H
+#define _ANALYSIS_SCAN_CONTEXT_INT_H
+
+
+#include "context.h"
+
+
+#include "expr.h"
+
+
+
+/* Mémorisation des correspondances partielles */
+typedef struct _atom_match_tracker_t
+{
+    phys_t *matches;                        /* Correspondances à confirmer */
+    size_t allocated;                       /* Taille du talbeau préparé   */
+    size_t used;                            /* Nombre d'éléments présents  */
+
+} atom_match_tracker_t;
+
+#define ALLOCATION_STEP 10
+
+/* Condition définissant une règle de correspondance */
+typedef struct _rule_condition_t
+{
+    char *name;                             /* Désignation de la règle     */
+
+    GScanExpression *expr;                  /* Condition de correspondance */
+    bool final_reduced;                     /* Réduction finale tentée ?   */
+
+} rule_condition_t;
+
+/* Contexte de suivi d'une analyse en cours (instance) */
+struct _GScanContext
+{
+    GObject parent;                         /* A laisser en premier        */
+
+    GScanOptions *options;                  /* Options d'analyses          */
+
+    GBinContent *content;                   /* Contenu binaire traité      */
+
+    patid_t next_patid;                     /* Prochain indice utilisable  */
+
+    atom_match_tracker_t *atom_trackers;    /* Correspondances partielles  */
+
+    GScanMatch **full_matches;              /* Correspondances confirmées  */
+    size_t full_allocated;                  /* Taille du talbeau préparé   */
+    size_t full_used;                       /* Nombre d'éléments présents  */
+
+    rule_condition_t *conditions;           /* Ensemble de règles suivies  */
+    size_t cond_count;                      /* Quantité de ces conditions  */
+
+};
+
+/* Contexte de suivi d'une analyse en cours (classe) */
+struct _GScanContextClass
+{
+    GObjectClass parent;                    /* A laisser en premier        */
+
+};
+
+
+
+#endif  /* _ANALYSIS_SCAN_CONTEXT_INT_H */