diff --git a/lang/bin/crowbook.pot b/lang/bin/crowbook.pot
index ad4950e..d150b7d 100644
--- a/lang/bin/crowbook.pot
+++ b/lang/bin/crowbook.pot
@@ -8,143 +8,143 @@ msgid ""
 msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:22
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:38
 msgid "WARNING"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:32
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:48
 msgid "ERROR"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:75
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:91
 msgid "An odd number of arguments was passed to --set, but it takes a list of key value pairs."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:103
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:119
 msgid "Error in setting key {}: {}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:115
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:131
 msgid "Could not create file {}: it already exists!"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:128
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:144
 msgid "author: Your name\ntitle: Your title\nlang: en\n\n## Output formats\n\n# Uncomment and fill to generate files\n# output.html: some_file.html\n# output.epub: some_file.epub\n# output.pdf: some_file.pdf\n\n# Or uncomment the following to generate PDF, HTML and EPUB files based on this file's name\n# output: [pdf, epub, html]\n\n# Uncomment and fill to set cover image (for EPUB)\n# cover: some_cover.png\n"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:146
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:162
 msgid "\n## List of chapters\n"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:152
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:168
 msgid "Created {}, now you'll have to complete it!"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:162
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:178
 msgid "Print help information"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:163
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:179
 msgid "Print version information"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:164
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:180
 msgid "Render a Markdown book in EPUB, PDF or HTML."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:165
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:181
 msgid "Use a single Markdown file instead of a book configuration file"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:166
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:182
 msgid "Force emoji usage even if it might not work on your system"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:167
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:183
 msgid "Print warnings in parsing/rendering"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:168
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:184
 msgid "Don't print info/error messages"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:169
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:185
 msgid "Enable proofreading"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:170
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:186
 msgid "Create a new book with existing Markdown files"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:171
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:187
 msgid "Prompts for an autograph for this book"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:172
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:188
 msgid "Specify output file"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:173
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:189
 msgid "Set the runtime language used by Crowbook"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:174
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:190
 msgid "Generate specific format"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:175
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:191
 msgid "Set a list of book options"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:176
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:192
 msgid "Disably fancy UI"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:177
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:193
 msgid "List all possible options"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:178
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:194
 msgid "List all possible options, formatted in Markdown"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:179
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:195
 msgid "Prints the default content of a template"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:180
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:196
 msgid "File containing the book configuration file, or a Markdown file when called with --single"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:181
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:197
 msgid "Print some project statistics"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:182
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:198
 msgid "{{bin}} {{version}} by {{author}}\n{{about}}\n\nUSAGE:\n    {{usage}}\n\nFLAGS:\n{{flags}}\n\nOPTIONS:\n{{options}}\n\nARGS:\n{{positionals}}\n"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:268
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:284
 msgid "A list of additional files is only valid with the --create option."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:121
+#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:123
 msgid "{} is not a valid template name."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:142
+#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:144
 msgid "You must pass the file of a book configuration file.\n\n{}\n\nFor more information try --help."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:188
+#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:190
 msgid "Enter autograph: "
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:194
+#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:196
 msgid "could not read autograph from stdin"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:244
+#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:246
 msgid "Crowbook exited successfully, but the following errors occurred:"
 msgstr ""
 
diff --git a/lang/bin/fr.po b/lang/bin/fr.po
index 2f964f7..2e31fb2 100644
--- a/lang/bin/fr.po
+++ b/lang/bin/fr.po
@@ -7,15 +7,15 @@
 msgid ""
 msgstr "Content-Type: text/plain; charset=UTF-8\n"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:22
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:38
 msgid "WARNING"
 msgstr "AVERTISSEMENT"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:32
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:48
 msgid "ERROR"
 msgstr "ERREUR"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:75
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:91
 msgid ""
 "An odd number of arguments was passed to --set, but it takes a list of key "
 "value pairs."
@@ -23,15 +23,15 @@ msgstr ""
 "Un nombre impair d'arguments a été donné à --set, alors qu'il prend une "
 "liste de paires clé-valeur."
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:103
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:119
 msgid "Error in setting key {}: {}"
 msgstr "Erreur en initialisant la clé {}: {}"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:115
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:131
 msgid "Could not create file {}: it already exists!"
 msgstr "Impossible de créer le fichier {} : il existe déjà !"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:128
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:144
 msgid ""
 "author: Your name\n"
 "title: Your title\n"
@@ -70,7 +70,7 @@ msgstr ""
 "l'Epub)\n"
 "# cover: une_couverture.png\n"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:146
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:162
 msgid ""
 "\n"
 "## List of chapters\n"
@@ -78,85 +78,87 @@ msgstr ""
 "\n"
 "## Liste des chapitres\n"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:152
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:168
 msgid "Created {}, now you'll have to complete it!"
 msgstr "{} a été crée, maintenant vous n'avez plus qu'à le compléter !"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:162
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:178
 msgid "Print help information"
 msgstr "Affiche l'aide"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:163
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:179
 msgid "Print version information"
 msgstr "Affiche le numéro de version"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:164
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:180
 msgid "Render a Markdown book in EPUB, PDF or HTML."
 msgstr "Fait le rendu en EPUB, PDF ou HTML d'un livre écrit en Markdown."
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:165
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:181
 msgid "Use a single Markdown file instead of a book configuration file"
 msgstr ""
 "Utilise un simple fichier Markdown au lieu d'un fichier de configuration de "
 "livre"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:166
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:182
 msgid "Force emoji usage even if it might not work on your system"
-msgstr "Force l'utilisation d'emoji même si cela risque de ne pas fonctionner sur votre système"
+msgstr ""
+"Force l'utilisation d'emoji même si cela risque de ne pas fonctionner sur "
+"votre système"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:167
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:183
 msgid "Print warnings in parsing/rendering"
 msgstr "Affiche les avertissements dans l'analyse et le rendu"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:168
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:184
 msgid "Don't print info/error messages"
 msgstr "N'affiche pas les messages d'erreurs ou d'information"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:169
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:185
 msgid "Enable proofreading"
 msgstr "Activer la génération de versions pour la relecture"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:170
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:186
 msgid "Create a new book with existing Markdown files"
 msgstr "Crée un nouveau livre à partir de fichiers Markdown existants"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:171
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:187
 msgid "Prompts for an autograph for this book"
 msgstr "Demande un autographe pour ce livre"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:172
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:188
 msgid "Specify output file"
 msgstr "Spécifie un fichier de sortie"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:173
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:189
 msgid "Set the runtime language used by Crowbook"
 msgstr "Spécifie la langue à utiliser par Crowbook à l'exécution"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:174
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:190
 msgid "Generate specific format"
 msgstr "Génère un format spécifique"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:175
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:191
 msgid "Set a list of book options"
 msgstr "Règle une liste d'options pour le livre"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:176
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:192
 msgid "Disably fancy UI"
 msgstr "Désactive l'interface 'avancée'"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:177
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:193
 msgid "List all possible options"
 msgstr "Liste toutes les options possibles"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:178
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:194
 msgid "List all possible options, formatted in Markdown"
 msgstr "Liste toutes les options possibles, formatées en Markdown"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:179
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:195
 msgid "Prints the default content of a template"
 msgstr "Affiche le contenu par défaut d'un template"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:180
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:196
 msgid ""
 "File containing the book configuration file, or a Markdown file when called "
 "with --single"
@@ -164,11 +166,11 @@ msgstr ""
 "Fichier contenant la configuration du livre, ou un fichier Markdown avec "
 "l'argument --single"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:181
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:197
 msgid "Print some project statistics"
 msgstr "Affiche quelques statistiques sur le projet"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:182
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:198
 msgid ""
 "{{bin}} {{version}} by {{author}}\n"
 "{{about}}\n"
@@ -200,16 +202,16 @@ msgstr ""
 "ARGUMENTS:\n"
 "{{positionals}}\n"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:268
+#: /home/lise/Progs/rust/crowbook/src/bin/helpers.rs:284
 msgid "A list of additional files is only valid with the --create option."
 msgstr ""
 "Une liste de fichiers additionnels n'est valide qu'avec l'option --create."
 
-#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:121
+#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:123
 msgid "{} is not a valid template name."
 msgstr "{} n'est pas un nom de template valide."
 
-#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:142
+#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:144
 msgid ""
 "You must pass the file of a book configuration file.\n"
 "\n"
@@ -223,15 +225,15 @@ msgstr ""
 "\n"
 "Pour plus d'informations, essayez --help."
 
-#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:188
+#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:190
 msgid "Enter autograph: "
 msgstr "Entrez l'autographe : "
 
-#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:194
+#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:196
 msgid "could not read autograph from stdin"
 msgstr "impossible de lire l'autographe depuis l'entrée standard"
 
-#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:244
+#: /home/lise/Progs/rust/crowbook/src/bin/real_main.rs:246
 msgid "Crowbook exited successfully, but the following errors occurred:"
 msgstr ""
 "Crowbook s'est terminé avec succès, mais les erreurs suivantes se sont "
diff --git a/lang/lib/crowbook.pot b/lang/lib/crowbook.pot
index 1abe5a0..788c98b 100644
--- a/lang/lib/crowbook.pot
+++ b/lang/lib/crowbook.pot
@@ -176,119 +176,119 @@ msgstr ""
 msgid "unknown format"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:952
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:953
 msgid "Processing {file}..."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:957
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:958
 msgid "file {file} contains invalid UTF-8"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:965
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:966
 msgid "Parsing..."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:979
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:980
 msgid "Warning: book contains chapter '{file}' in a directory above the book file, this might cause problems"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1014
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1022
 msgid "Running languagetool"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1016
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1024
 msgid "Trying to run languagetool on {file}, this might take a while..."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1020
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1028
 msgid "Error running languagetool on {file}: {error}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1026
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1034
 msgid "Running grammalecte"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1028
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1036
 msgid "Trying to run grammalecte on {file}, this might take a while..."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1032
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1040
 msgid "Error running grammalecte on {file}: {error}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1038
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1046
 msgid "Detecting repetitions"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1040
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1048
 msgid "Trying to run repetition detector on {file}, this might take a while..."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1044
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1052
 msgid "Error running repetition detector on {file}: {error}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1077
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1085
 msgid "this subchapter contains a heading that, when adjusted, is not in the right range ({} instead of [0-6])"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1105
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1113
 msgid "Parsing {file}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1107
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1115
 msgid "Parsing chapter: {file}..."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1115
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1123
 msgid "book chapter"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1178
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1186
 msgid "invalid template '{template}'"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1193
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1201
 msgid "file '{file}' could not be read"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1222 /home/lise/Progs/rust/crowbook/src/lib/html.rs:349
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1230 /home/lise/Progs/rust/crowbook/src/lib/html.rs:349
 msgid "can not use roman numerals with zero or negative chapter numbers ({n})"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1279
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1287
 msgid "header generated by mustache was not valid utf-8"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1346
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1354
 msgid "could not render `{key}` for metadata:\n{error}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1406
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1414
 msgid "Inline YAML block replaced {:?} previously set to {:?} to {:?}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1414
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1422
 msgid "Inline YAML block set {:?} to {:?}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1421
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1429
 msgid "Inline YAML block could not set {:?} to {:?}: {}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1430
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1438
 msgid "Ignoring YAML block:\n---\n{block}---"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1437
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1445
 msgid "Found something that looked like a YAML block:\n{block}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1440
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1448
 msgid "... but it didn't parse correctly as YAML('{error}'), so treating it like Markdown."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1503
+#: /home/lise/Progs/rust/crowbook/src/lib/book.rs:1511
 msgid "could not compile '{template}': {error}"
 msgstr ""
 
@@ -304,15 +304,15 @@ msgstr ""
 msgid "waiting..."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book_renderer.rs:30
+#: /home/lise/Progs/rust/crowbook/src/lib/book_renderer.rs:31
 msgid "This renderer does not support the auto output"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book_renderer.rs:46
+#: /home/lise/Progs/rust/crowbook/src/lib/book_renderer.rs:47
 msgid "could not create file '{file}': {err}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/book_renderer.rs:51
+#: /home/lise/Progs/rust/crowbook/src/lib/book_renderer.rs:52
 msgid "could not write book content to file '{file}': {err}"
 msgstr ""
 
@@ -344,691 +344,699 @@ msgstr ""
 msgid "{:?} is not a f32"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:205
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:206
 msgid "Metadata"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:206
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:207
 msgid "Additional metadata"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:207
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:208
 msgid "Output options"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:208
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:209
 msgid "Specify a list of output formats to render"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:209
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:210
 msgid "Rendering options"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:210
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:211
 msgid "Special option"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:211
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:212
 msgid "HTML options"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:212
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:213
 msgid "Standalone HTML options"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:213
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:214
 msgid "Multifile HTML options"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:214
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:215
 msgid "Interactive fiction HTML options"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:215
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:216
 msgid "EPUB options"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:216
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:217
 msgid "LaTeX options"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:217
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:218
 msgid "Resources option"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:218
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:219
 msgid "Input options"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:219
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:220
 msgid "Crowbook options"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:220
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:221
 msgid "Output options (for proofreading)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:221
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:222
 msgid "Proofreading options (only for output.proofread.* targets)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:222 /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:908
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:223 /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:910
 msgid "Deprecated options"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:224
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:225
 msgid "Author of the book"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:225
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:226
 msgid "Title of the book"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:226
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:227
 msgid "Language of the book"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:227
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:228
 msgid "Subject of the book (used for EPUB metadata)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:228
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:229
 msgid "Description of the book (used for EPUB metadata)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:229
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:230
 msgid "Path to the cover of the book"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:231
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:232
 msgid "Subtitle of the book"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:232
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:233
 msgid "License of the book. This information will be displayed on PDF documents"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:233
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:234
 msgid "Version of the book"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:234
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:235
 msgid "Date the book was revised"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:235
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:236
 msgid "An autograph"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:237
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:238
 msgid "Output file name for EPUB rendering"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:238
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:239
 msgid "Output file name for HTML rendering"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:239
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:240
 msgid "Output file name for LaTeX rendering"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:240
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:241
 msgid "Output file name for PDF rendering"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:241
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:242
 msgid "Output file name for ODT rendering"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:242
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:243
 msgid "Output file name for HTML (interactive fiction) rendering"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:243
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:244
 msgid "Output directory name for HTML rendering"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:244
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:245
 msgid "Directory where those output files will we written"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:246
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:247
 msgid "If/how highligh code blocks. Possible values: \"syntect\" (default, performed at runtime), \"highlight.js\" (HTML-only, uses Javascript), \"none\""
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:247
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:248
 msgid "Theme for syntax highlighting (if rendering.highlight is set to 'syntect')"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:248
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:249
 msgid "Use initials ('lettrines') for first letter of a chapter"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:249
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:250
 msgid "Display a table of content in the document"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:250
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:251
 msgid "Name of the table of contents if it is displayed in document"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:251
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:252
 msgid "The  maximum heading levels that should be numbered (0: no numbering, 1: only chapters, ..., 6: all)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:252
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:253
 msgid "How to call parts (or 'books', 'episodes', ...)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:253
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:254
 msgid "How to call chapters"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:254
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:255
 msgid "Naming scheme of chapters, for TOC"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:255
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:256
 msgid "Naming scheme of parts, for TOC"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:256
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:257
 msgid "If set to true, display part number with roman numerals"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:257
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:258
 msgid "If set to true, display chapter number with roman numerals"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:258
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:259
 msgid "If set to true, reset chapter number at each part"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:260
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:261
 msgid "Import another book configuration file"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:262
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:263
 msgid "Path to an icon to be used for the HTML files(s)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:263
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:264
 msgid "Custom header to display at the beginning of html file(s)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:264
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:265
 msgid "Custom footer to display at the end of HTML file(s)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:265
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:266
 msgid "Path of a stylesheet for HTML rendering"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:266
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:267
 msgid "Some inline CSS added to the stylesheet template"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:267
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:268
 msgid "Path of a stylesheet for the colours for HTML"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:268 /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:277 /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:278
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:269 /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:278 /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:279
 msgid "Path of a javascript file"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:269
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:270
 msgid "Path of a media print stylesheet for HTML rendering"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:270
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:271
 msgid "Set another highlight.js version than the bundled one"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:271
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:272
 msgid "Set another highlight.js CSS theme than the default one"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:272
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:273
 msgid "Display footnotes as side notes in HTML/Epub (experimental)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:273
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:274
 msgid "Replace unicode non breaking spaces with HTML entities and CSS"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:275
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:276
 msgid "Display only one chapter at a time (with a button to display all)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:276
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:277
 msgid "Path of an HTML template for standalone HTML"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:279
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:280
 msgid "Javascript code that will be run at the beginning of each segment"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:280
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:281
 msgid "Javascript code that will be run at the end of each segment"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:281
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:282
 msgid "Javascript code that will be run at the beginning of a 'game'"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:283
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:284
 msgid "Inline template for HTML chapter formatting"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:284
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:285
 msgid "Inline template for HTML part formatting"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:285
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:286
 msgid "Path of a HTML template for multifile HTML"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:287
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:288
 msgid "EPUB version to generate (2 or 3)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:288
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:289
 msgid "Path of a stylesheet for EPUB"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:289
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:290
 msgid "Inline CSS added to the EPUB stylesheet template"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:290
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:291
 msgid "Path of an xhtml template for each chapter"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:291
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:292
 msgid "Add 'Title' and (if set) 'Cover' in the EPUB table of contents"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:293
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:294
 msgid "Add foontotes to URL of links so they are readable when printed"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:294
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:295
 msgid "LaTeX command to use for generating PDF"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:295
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:296
 msgid "Path of a LaTeX template file"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:296
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:297
 msgid "Inline code added in the LaTeX template"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:297
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:298
 msgid "LaTeX class to use"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:298
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:299
 msgid "If true, generate a title with \\maketitle"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:299
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:300
 msgid "Specifies the size of the page."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:300
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:301
 msgid "Specifies left margin (note that with book class left and right margins are reversed for odd pages, thus the default value is 1.5cm for book class and 2cm else)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:301
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:302
 msgid "Specifies right margin(note that with book class left and right margins are reversed for odd pages, thus the default value is 2.5cm for book class and 2cm else)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:302
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:303
 msgid "Specifies top margin"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:303
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:304
 msgid "Specifies left margin"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:304
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:305
 msgid "Specify latex font size (in pt, 10 (default), 11, or 12 are accepted)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:305
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:306
 msgid "If disabled, don't try to find references inside the document"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:306
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:307
 msgid "If set to true, use 'stdpage' package to format a manuscript according to standards"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:308
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:309
 msgid "Whitespace-separated list of files to embed in e.g. EPUB file; useful for including e.g. fonts"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:309
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:310
 msgid "Paths where additional resources should be copied in the EPUB file or HTML directory"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:310
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:311
 msgid "Path where to find resources (in the source tree). By default, links and images are relative to the Markdown file. If this is set, it will be to this path."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:311
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:312
 msgid "Set base path but only for links. Useless if resources.base_path is set"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:312
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:313
 msgid "Set base path but only for images. Useless if resources.base_path is set"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:313
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:314
 msgid "Set base path but only for additional files. Useless if resources.base_path is set."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:314
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:315
 msgid "Set base path but only for templates files. Useless if resources.base_path is set"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:316
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:317
 msgid "Toggle typographic cleaning of input markdown according to lang"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:317
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:318
 msgid "If enabled, tries to replace vertical quotations marks to curly ones"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:318
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:319
 msgid "If enabled, replaces '--' to en dash ('–') and '---' to em dash ('—')"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:319
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:320
 msgid "If enabled, replaces '<<' and '>>' to french \"guillemets\" ('«' and '»')"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:320
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:321
 msgid "If enabled, allow support for superscript and subscript using respectively foo^up^  and bar~down~ syntax."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:321
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:322
 msgid "Enable inline YAML blocks to override options set in config file"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:322
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:323
 msgid "Consider HTML blocks as text. This avoids having <foo> being considered as HTML and thus ignored."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:323
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:324
+msgid "Consider that a new file is always a new chapter, even if it does not include heading (default: only for numbered chapters)"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:325
 msgid "Path where to create a temporary directory (default: uses result from Rust's std::env::temp_dir())"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:324
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:326
 msgid "Command to use to zip files (for EPUB/ODT)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:326
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:328
 msgid "Output file name for HTML rendering with proofread features"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:327
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:329
 msgid "Output directory name for HTML rendering with proofread features"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:328
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:330
 msgid "Output file name for PDF rendering with proofread features"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:329
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:331
 msgid "If set to false, will disactivate proofreading even if one of output.proofread.x is present"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:330
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:332
 msgid "If true, try to use language tool server to grammar check the book"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:331
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:333
 msgid "Port to connect to languagetool-server"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:332
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:334
 msgid "If true, try to use grammalecte server to grammar check the book"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:333
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:335
 msgid "Port to connect to grammalecte server"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:334
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:336
 msgid "If set to true, use Caribon to detect repetitions"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:335
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:337
 msgid "Max distance between two occurences so it is considered a repetition"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:336
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:338
 msgid "Enable fuzzy string matching"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:337
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:339
 msgid "Max threshold of differences to consider two strings a repetition"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:338
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:340
 msgid "Ignore proper nouns for repetitions"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:339
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:341
 msgid "Threshold to detect a repetition"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:341
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:343
 msgid "If set, set theme for syntax highlighting for LaTeX/PDF output (syntect only)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:342
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:344
 msgid "If set, set theme for syntax highlighting for HTML output (syntect only)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:343
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:345
 msgid "If set, set theme for syntax highlighting for EPUB output (syntect only)"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:345
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:347
 msgid "Renamed"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:346
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:348
 msgid "Removed"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:445
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:447
 msgid "Ill-formatted OPTIONS string: unrecognized type '{option_type}'"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:483
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:485
 msgid "Expected a String as a key, found {:?}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:495
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:497
 msgid "Expected only string in the list for key {}, found {:?}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:506
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:508
 msgid "The output format {format} for key {key} is not recognized"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:514
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:516
 msgid "Expected a list as value for key {}, found {:?}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:524
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:526
 msgid "Expected a string as value for key {}, found {:?}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:539
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:541
 msgid "'{value}''s path contains invalid UTF-8 code"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:552 /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:638
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:554 /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:640
 msgid "expected a string as value for key '{}', found {:?}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:563
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:565
 msgid "could not parse '{value}' as a char: does not contain exactly one char"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:571
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:573
 msgid "expected a string as value containing a char for key '{}', found {:?}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:582
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:584
 msgid "expected a boolean as value for key '{}', found {:?}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:593
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:595
 msgid "expected an integer as value for key '{}', found {:?}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:605
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:607
 msgid "could not parse '{value}' as a float for key '{key}'"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:613
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:615
 msgid "expected a float as value for key '{}', found {:?}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:621
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:623
 msgid "'{old_key}' has been deprecated, you should now use '{new_key}'"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:628
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:630
 msgid "key '{key}' has been deprecated."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:646
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:648
 msgid "unrecognized key '{key}'"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:685
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:687
 msgid "value '{value}' for key '{key}' does not contain one and only one YAML value"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:692
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:694
 msgid "could not parse '{value}' as a valid YAML value"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:708
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:710
 msgid "option '{key}' is not present"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:793 /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:880
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:795 /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:882
 msgid "'{key}''s path contains invalid UTF-8 code"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:873
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:875
 msgid "could not get current directory!"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:926
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:928
 msgid "boolean"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:927
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:929
 msgid "float"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:928
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:930
 msgid "integer"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:929
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:931
 msgid "char"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:930
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:932
 msgid "string"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:931
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:933
 msgid "path"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:932
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:934
 msgid "template path"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:933
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:935
 msgid "metadata"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:934
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:936
 msgid "list of strings"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:935
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:937
 msgid "DEPRECATED"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:941
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:943
 msgid "not set"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:944
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:946
 msgid "- **`{key}`**\n    - **type**: {option_type}\n    - **default value**: `{default}`\n    - {comment}\n"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:956
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:958
 msgid "type:"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:959
+#: /home/lise/Progs/rust/crowbook/src/lib/bookoptions.rs:961
 msgid "default:"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:216 /home/lise/Progs/rust/crowbook/src/lib/html_dir.rs:136
+#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:81
+msgid "Could not run zip command, falling back to zip library"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:218 /home/lise/Progs/rust/crowbook/src/lib/html_dir.rs:136
 msgid "image or cover"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:239 /home/lise/Progs/rust/crowbook/src/lib/html_dir.rs:162
+#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:241 /home/lise/Progs/rust/crowbook/src/lib/html_dir.rs:162
 msgid "additional resource from resources.files"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:274 /home/lise/Progs/rust/crowbook/src/lib/html_dir.rs:296
+#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:276 /home/lise/Progs/rust/crowbook/src/lib/html_dir.rs:296
 msgid "cover"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:293
+#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:295
 msgid "generated HTML for cover.xhtml was not utf-8 valid"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:297
+#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:299
 msgid "Why is this method called if cover is None???"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:353
+#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:355
 msgid "generated HTML was not utf-8 valid"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:365
+#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:367
 msgid "EPUB ({source}): detected two chapter titles inside the same markdown file, in a file where chapter titles are not even rendered."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:401
+#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:403
 msgid "EPUB ({source}): detected two chapters inside the same markdown file."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:404
+#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:406
 msgid "EPUB ({source}): conflict between: {title1} and {title2}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:419
+#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:421
 msgid "EPUB: could not guess the format of {file} based on extension. Assuming png."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:453 /home/lise/Progs/rust/crowbook/src/lib/latex.rs:277
+#: /home/lise/Progs/rust/crowbook/src/lib/epub.rs:455 /home/lise/Progs/rust/crowbook/src/lib/latex.rs:284
 msgid "empty str token, could not find initial"
 msgstr ""
 
@@ -1084,31 +1092,31 @@ msgstr ""
 msgid "grammalecte only works with 'fr' lang"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/grammalecte.rs:81
+#: /home/lise/Progs/rust/crowbook/src/lib/grammalecte.rs:82
 msgid "could not connect to grammalecte server: {error}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/grammalecte.rs:86 /home/lise/Progs/rust/crowbook/src/lib/grammalecte.rs:112 /home/lise/Progs/rust/crowbook/src/lib/grammar_check.rs:78 /home/lise/Progs/rust/crowbook/src/lib/grammar_check.rs:104
+#: /home/lise/Progs/rust/crowbook/src/lib/grammalecte.rs:87 /home/lise/Progs/rust/crowbook/src/lib/grammalecte.rs:111 /home/lise/Progs/rust/crowbook/src/lib/grammar_check.rs:79 /home/lise/Progs/rust/crowbook/src/lib/grammar_check.rs:103
 msgid "server didn't respond with a OK status code"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/grammalecte.rs:106 /home/lise/Progs/rust/crowbook/src/lib/grammar_check.rs:98
+#: /home/lise/Progs/rust/crowbook/src/lib/grammalecte.rs:105 /home/lise/Progs/rust/crowbook/src/lib/grammar_check.rs:97
 msgid "could not send request to server: {error}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/grammalecte.rs:120 /home/lise/Progs/rust/crowbook/src/lib/grammar_check.rs:112
+#: /home/lise/Progs/rust/crowbook/src/lib/grammalecte.rs:119 /home/lise/Progs/rust/crowbook/src/lib/grammar_check.rs:111
 msgid "could not read response: {error}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/grammalecte.rs:125 /home/lise/Progs/rust/crowbook/src/lib/grammar_check.rs:117
+#: /home/lise/Progs/rust/crowbook/src/lib/grammalecte.rs:124 /home/lise/Progs/rust/crowbook/src/lib/grammar_check.rs:116
 msgid "could not decode JSON: {error}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/grammalecte.rs:155
+#: /home/lise/Progs/rust/crowbook/src/lib/grammalecte.rs:154
 msgid "some error messages from Grammalecte were ignored because of format"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/grammar_check.rs:73
+#: /home/lise/Progs/rust/crowbook/src/lib/grammar_check.rs:74
 msgid "could not connect to language tool server: {error}"
 msgstr ""
 
@@ -1116,11 +1124,11 @@ msgstr ""
 msgid "rendering.highlight set to '{}', not a valid value"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/html.rs:679
+#: /home/lise/Progs/rust/crowbook/src/lib/html.rs:688
 msgid "rendering 'html.footer' template:\n{error}"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/html.rs:711
+#: /home/lise/Progs/rust/crowbook/src/lib/html.rs:720
 msgid "rendering 'html.header' template:\n{error}"
 msgstr ""
 
@@ -1164,7 +1172,7 @@ msgstr ""
 msgid "can only render HTML directory to a path, not to a stream"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/html_if.rs:345
+#: /home/lise/Progs/rust/crowbook/src/lib/html_if.rs:343
 msgid "problem when writing interactive fiction: {error}"
 msgstr ""
 
@@ -1200,19 +1208,19 @@ msgstr ""
 msgid "LaTeX: can't find a tex equivalent for lang '{lang}', fallbacking on english"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/latex.rs:256
+#: /home/lise/Progs/rust/crowbook/src/lib/latex.rs:263
 msgid "generated LaTeX was not valid utf-8"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/latex.rs:413
+#: /home/lise/Progs/rust/crowbook/src/lib/latex.rs:428
 msgid "found {n} indented ordered lists, LaTeX only allows for 4"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/latex.rs:455 /home/lise/Progs/rust/crowbook/src/lib/latex.rs:467
+#: /home/lise/Progs/rust/crowbook/src/lib/latex.rs:470 /home/lise/Progs/rust/crowbook/src/lib/latex.rs:482
 msgid "LaTeX ({source}): image '{url}' doesn't seem to be local; ignoring it."
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/latex.rs:550 /home/lise/Progs/rust/crowbook/src/lib/latex.rs:567
+#: /home/lise/Progs/rust/crowbook/src/lib/latex.rs:570 /home/lise/Progs/rust/crowbook/src/lib/latex.rs:587
 msgid "problem when writing LaTeX: {error}"
 msgstr ""
 
@@ -1260,24 +1268,56 @@ msgstr ""
 msgid "generated content.xml was not utf-8 valid"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:156
+#: /home/lise/Progs/rust/crowbook/src/lib/odt.rs:234
+msgid "ODT: Description list and strikethrough not handled in this output"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:161
 msgid "markdown file"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:164
+#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:170
 msgid "file {file} contains invalid UTF-8, could not parse it"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:237
-msgid "footnote reference {reference} does not have a matching definition"
+#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:259 /home/lise/Progs/rust/crowbook/src/lib/parser.rs:262
+msgid "Codeblock contains invalid UTF-8"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:335
+#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:269 /home/lise/Progs/rust/crowbook/src/lib/parser.rs:280
+msgid "HTML block contains invalid UTF-8"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:274 /home/lise/Progs/rust/crowbook/src/lib/parser.rs:285
 msgid "ignoring HTML block '{}'"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:413
-msgid "in {file}, found footnote definition for note '{reference}' but previous definition already exist, overriding it"
+#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:296
+msgid "Footnote definition contains invalid UTF-8"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:305 /home/lise/Progs/rust/crowbook/src/lib/parser.rs:314
+msgid "Markdown file contains invalid UTF-8"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:335
+msgid "Link URL contains invalid UTF-8"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:338
+msgid "Link title contains invalid UTF-8"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:345
+msgid "Image URL contains invalid UTF-8"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:348
+msgid "Image title contains invalid UTF-8"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/parser.rs:356
+msgid "Footnote reference contains invalid UTF-8"
 msgstr ""
 
 #: /home/lise/Progs/rust/crowbook/src/lib/repetition_check.rs:61
@@ -1316,19 +1356,47 @@ msgstr ""
 msgid "error in epub rendering: {path} is neither a file nor a directory"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:57
+#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:93
+msgid "This version of crowboook has been compiled without support for advanced statistics"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:107
+msgid "For more advanced statistics, use the --verbose or -v option"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:294 /home/lise/Progs/rust/crowbook/src/lib/stats.rs:308
 msgid "Chapter"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:58
-msgid "Words"
-msgstr ""
-
-#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:59
+#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:295 /home/lise/Progs/rust/crowbook/src/lib/stats.rs:309
 msgid "Chars"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:70
+#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:296
+msgid "Syllables"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:297 /home/lise/Progs/rust/crowbook/src/lib/stats.rs:310
+msgid "Words"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:298
+msgid "Sentences"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:299 /home/lise/Progs/rust/crowbook/src/lib/stats.rs:311
+msgid "Chars/Word"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:300
+msgid "Words/Sentence"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:301
+msgid "Flesch reading ease index"
+msgstr ""
+
+#: /home/lise/Progs/rust/crowbook/src/lib/stats.rs:369 /home/lise/Progs/rust/crowbook/src/lib/stats.rs:384
 msgid "TOTAL:"
 msgstr ""
 
@@ -1344,7 +1412,7 @@ msgstr ""
 msgid "crowbook was compiled without syntect support, syntax highlighting will be disabled"
 msgstr ""
 
-#: /home/lise/Progs/rust/crowbook/src/lib/text_view.rs:130 /home/lise/Progs/rust/crowbook/src/lib/text_view.rs:258
+#: /home/lise/Progs/rust/crowbook/src/lib/text_view.rs:131 /home/lise/Progs/rust/crowbook/src/lib/text_view.rs:259
 msgid "ignored annotation {:?} as it wasn't compatible with the Markdown structure"
 msgstr ""