pub struct SessionOptions {Show 52 fields
pub paths: RuntimePaths,
pub scheme: SchemeType,
pub enabled_schemes: SchemeSet,
pub shuangpin_profile: ShuangpinProfileKind,
pub shuangpin_custom_profile: Option<ShuangpinCustomTable>,
pub shuangpin_preedit_uses_raw: bool,
pub vietnamese_input_method: InputMethod,
pub vietnamese_tone_style: ToneStyle,
pub korean_layout: KoreanLayout,
pub cantonese_dictionary: PathBuf,
pub force_cantonese_shuangpin: bool,
pub zhuyin_dictionary: PathBuf,
pub stroke_dictionary: PathBuf,
pub japanese_dictionary: PathBuf,
pub helpcode_schema: String,
pub helpcode_trigger_key: Option<u8>,
pub helpcode_table: Option<SharedKeymap>,
pub helpcode_fallback_resources: Option<PathBuf>,
pub autocorrect_types: u32,
pub helpcode: bool,
pub strict_quanpin_helpcode: bool,
pub shuangpin_helpcode_modes: ShuangpinHelpcodeModes,
pub chinese_punctuation: bool,
pub paired_punctuation: bool,
pub punctuation_lock: i32,
pub punctuation_marks: PunctuationMarks,
pub learning: bool,
pub learn_english_on_enter: bool,
pub sentence_alternatives: bool,
pub first_page_rows: usize,
pub single_character_only: bool,
pub caret_edit_suffix: bool,
pub fuzzy_pinyin: FuzzyPinyinOptions,
pub frequency: FrequencyAdjustmentOptions,
pub local_modes: LocalModeOptions,
pub mixed_candidates: bool,
pub english: EnglishInputOptions,
pub expressive: MixedExpressiveOptions,
pub japanese_mixing: bool,
pub multilingual_languages: Vec<Language>,
pub wubi: WubiInputOptions,
pub personal_context: bool,
pub next_word_prediction: bool,
pub sentence_association: SentenceAssociationOptions,
pub rescoring_context: String,
pub command_table: Vec<CommandTableEntry>,
pub plugin_commands: Vec<PluginCommand>,
pub mention_entries: Vec<MentionEntry>,
pub quick_phrase_table: Vec<QuickPhraseEntry>,
pub quick_phrase_candidates: bool,
pub quick_phrase_frequency: bool,
pub chaizi_traditional_output: bool,
}Expand description
Everything a session is built with. learning_undo is gone with the feature.
Fields§
§paths: RuntimePaths§scheme: SchemeType§enabled_schemes: SchemeSet会话允许运行的方案，缺省全部。scheme 和之后的 switch_scheme 都必须在其中；只为其中的方案构造 provider（见 SchemeSet）。
shuangpin_profile: ShuangpinProfileKind§shuangpin_custom_profile: Option<ShuangpinCustomTable>shuangpin_profile 为 Custom 时的键位表。没有它或它不合法时，会话里有双拼就建不起来（INVALID_CUSTOM_SHUANGPIN_PROFILE），没有双拼就按小鹤；内置方案不读它。
shuangpin_preedit_uses_raw: boolShuangpin preedit shows the typed keys rather than the decoded quanpin.
vietnamese_input_method: InputMethodHow the Vietnamese scheme spells marks: Telex letters or VNI digits.
vietnamese_tone_style: ToneStyleWhere the Vietnamese scheme puts the tone on oa, oe and uy.
korean_layout: KoreanLayout韩语实体键盘布局，缺省两套式。
cantonese_dictionary: PathBufWhere msime-cantonese.db is; empty when the host has none. Read only when Cantonese is activated, which fails without it.
force_cantonese_shuangpin: bool独立粤语双拼入口强制按两键码解释，普通粤拼入口仍按现有规则自动识别。
zhuyin_dictionary: PathBufWhere msime-zhuyin.db is; empty when the host has none. Read only when Zhuyin is activated, which fails without it.
stroke_dictionary: PathBufWhere msime-stroke.db is; empty when the host has none. Read only when Stroke is activated, which fails without it.
japanese_dictionary: PathBufmsime-japanese.dat 的位置；为空时读资源目录里的那份。文件缺失时日文只给假名行。
helpcode_schema: String§helpcode_trigger_key: Option<u8>辅助码前导标点；None 保留现有 Shift 加字母。
helpcode_table: Option<SharedKeymap>宿主给的辅助码表；有它时直接装上它，不再按 helpcode_schema 读表（名字仍然要合法）。Session::set_helpcode_table 可以实时替换。
helpcode_fallback_resources: Option<PathBuf>内置辅助码表缺失时使用的随包资源根目录。
autocorrect_types: u32autocorrect_type bits; 0 keeps the user’s spelling. Either of transposition and neighbor also enables missing and extra letters, and on inputs of three or more complete syllables offers a sentence that reads one syllable as a typo. Committing the raw letters while a correction is offered turns correction off for that exact input.
helpcode: bool§strict_quanpin_helpcode: bool一码辅助码严格筛选，默认关闭以保持原有重排行为。
shuangpin_helpcode_modes: ShuangpinHelpcodeModes双拼辅助码的触发方式（Windows [helpcode] 组的双拼专属键）；只在双拼方案下生效。
chinese_punctuation: bool§paired_punctuation: bool§punctuation_lock: i320 follows the mode, 1 forces Chinese, 2 forces ASCII.
punctuation_marks: PunctuationMarks中文标点下引号键和方头括号键出哪一组字，缺省是弯引号、实心括号。
learning: bool§learn_english_on_enter: bool回车上屏英文拼写时是否把它学进英文词库（Windows input.enter_learns_english_word，出厂为开）。
sentence_alternatives: boolHand back every whole-sentence reading instead of only the best. A host that sets this must reorder and crop them itself.
first_page_rows: usize宿主的每页候选数（candidate_page_size）：全长组的精确同音词够这么多行就不再并入更长的补全词。0 到请求里会归一成 1。
single_character_only: bool只出单字：中文方案的候选去掉含汉字的词和整句、只留单个汉字（见 SchemeType::filters_to_single_characters），选一个字后剩下的拼写接着组字。
caret_edit_suffix: bool移动光标后编辑光标后的部分（默认关）：全拼、双拼的组字光标停在中间时，光标前的原文固定为它当前的最佳转换，候选是光标后那段原文的候选，首选前面接上固定的部分；选中一条只消耗它的音节，固定部分和已选部分一起留到组字结束。规则见 session/caret_edit.rs。
fuzzy_pinyin: FuzzyPinyinOptions§frequency: FrequencyAdjustmentOptions§local_modes: LocalModeOptions§mixed_candidates: bool候选混输总开关（Windows utility.mixed_candidates）：关掉后英文、emoji、颜文字、符号、日文混输行、行内日期时间和快捷短语都不再混进普通候选；各分成员（english.mixed_candidates、expressive.*、local_modes.*）原值保留，重新打开即恢复。本地模式本身（T、K、M 等）不受影响。
english: EnglishInputOptions§expressive: MixedExpressiveOptions§japanese_mixing: bool日文混输（实验选项，默认关）：全拼、双拼组字时，整段输入像日文罗马字就混进一行日文转换（来源 MixedJapanese），见 ImeSession::mixed_japanese_conversion。需要会话带日文（enabled_schemes 含 JapaneseRomaji）和日文模型；开着时建会话就在后台预热模型。
multilingual_languages: Vec<Language>连续多语言输入所选的语言；默认空集合关闭，少于两种不生成混合行。
wubi: WubiInputOptions§personal_context: boolLearn word sequences and pick pairs; also needs learning.
next_word_prediction: bool上屏后联想；独立于整句候选，默认关闭。
sentence_association: SentenceAssociationOptions§rescoring_context: StringCommitted text the neural sentence models condition on; Session::set_rescoring_context updates it live.
command_table: Vec<CommandTableEntry>The / mode’s commands beyond the built-in ones; Session::set_command_table replaces it live.
plugin_commands: Vec<PluginCommand>脚本插件在 / 模式里的指令（只在桌面非空）；Session::set_plugin_commands 可以实时替换。
mention_entries: Vec<MentionEntry>The @ mode’s names and places; Session::set_mention_entries replaces it live.
quick_phrase_table: Vec<QuickPhraseEntry>K 模式在数据库行之后追加的宿主短语；Session::set_quick_phrase_table 可以实时替换。
quick_phrase_candidates: bool普通候选是否追加编码匹配的快捷短语。仅 macOS 桌面宿主打开；其他宿主保留独立 K 模式。
quick_phrase_frequency: bool快捷短语参与调频：追加进普通候选的整组短语有自己的槽位（quick_phrase_slots 日志表），越过它选普通候选让整组后退（最多退到首页末位），选中组内短语让整组前移。关掉时组固定在默认位置（首页最后几格，普通候选不满一页时接在它们之后，见 default_quick_phrase_slot），槽位记录保留但不读。
chaizi_traditional_output: bool宿主会把候选转成繁体输出：拆字（C）行按转换后的字形去重，免得一屏出现两个相同的繁体字。
Implementations§
Source§impl SessionOptions
impl SessionOptions
Sourcepub fn new(paths: RuntimePaths) -> Self
pub fn new(paths: RuntimePaths) -> Self
引擎库唯一的一套默认值，建在给定路径上。大部分沿用参照实现（session.h:12-54）：全拼、小鹤、学习开、个人上下文开、中文标点和成对标点开、频率按 FrequencyAdjustmentOptions::default()。与参照实现不同的只有辅助码：默认关，表名默认 wubi86。随仓库的七张辅助码表里只有 wubi86 写明了来源与许可（resources/helpcodes/NOTICE-wubi86.md），参照实现默认的 lantian 和产品默认的 ziranma 都没有再分发授权（resources/helpcodes/NOTICE.md），引擎库默认不读它们；要辅助码的嵌入方自己打开并选表。
产品不靠这套默认值：host 门面（host::options::session_options）逐字段给出产品取值，golden 基准在 tests/golden_support 里按参照实现补回辅助码。