mf_model/
schema.rs

1use crate::error::error_helpers::schema_error;
2use crate::error::PoolResult;
3
4use super::attrs::Attrs;
5use super::content::ContentMatch;
6use super::mark_type::{MarkSpec, MarkType};
7use super::node_type::{NodeSpec, NodeType};
8use serde::Serialize;
9use serde_json::Value;
10use std::any::Any;
11use std::collections::HashMap;
12use std::sync::{Arc, Mutex};
13/// 属性定义结构体
14/// 用于定义节点或标记的属性特征
15#[derive(Clone, PartialEq, Eq, Hash, Debug, Serialize)]
16pub struct Attribute {
17    pub has_default: bool,
18    pub default: Option<Value>,
19}
20
21impl Attribute {
22    /// 从 AttributeSpec 创建新的 Attribute 实例
23    pub(crate) fn new(options: AttributeSpec) -> Self {
24        Attribute {
25            has_default: options.default.is_some(),
26            default: options.default,
27        }
28    }
29    /// 检查属性是否为必需的
30    /// 如果没有默认值，则属性为必需
31    pub fn is_required(&self) -> bool {
32        !self.has_default
33    }
34}
35/// Schema 结构体定义
36/// 用于管理文档模型的整体结构，包括节点和标记的类型定义
37#[derive(Clone, Debug)]
38pub struct Schema {
39    /// Schema 的规范定义
40    pub spec: SchemaSpec,
41    /// 顶级节点类型
42    pub top_node_type: Option<NodeType>,
43    /// 全局缓存
44    pub cached: Arc<Mutex<HashMap<String, Arc<dyn Any + Send + Sync>>>>,
45    /// 节点类型映射表
46    pub nodes: HashMap<String, NodeType>,
47    /// 标记类型映射表
48    pub marks: HashMap<String, MarkType>,
49}
50impl PartialEq for Schema {
51    fn eq(
52        &self,
53        other: &Self,
54    ) -> bool {
55        self.spec == other.spec
56            && self.top_node_type == other.top_node_type
57            && self.nodes == other.nodes
58            && self.marks == other.marks
59    }
60}
61impl Eq for Schema {}
62impl Schema {
63    /// 创建新的 Schema 实例
64    pub fn new(spec: SchemaSpec) -> Self {
65        let mut instance_spec = SchemaSpec {
66            nodes: HashMap::new(),
67            marks: HashMap::new(),
68            top_node: spec.top_node,
69        };
70        // 复制 spec 属性
71        for (key, value) in spec.nodes {
72            instance_spec.nodes.insert(key, value);
73        }
74        for (key, value) in spec.marks {
75            instance_spec.marks.insert(key, value);
76        }
77        Schema {
78            spec: instance_spec,
79            top_node_type: None,
80            cached: Arc::new(Mutex::new(HashMap::new())),
81            nodes: HashMap::new(),
82            marks: HashMap::new(),
83        }
84    }
85    /// 编译 Schema 定义
86    /// 处理节点和标记的定义，建立它们之间的关系
87    pub fn compile(instance_spec: SchemaSpec) -> PoolResult<Schema> {
88        let mut schema: Schema = Schema::new(instance_spec);
89        let nodes: HashMap<String, NodeType> =
90            NodeType::compile(schema.spec.nodes.clone());
91        let marks = MarkType::compile(schema.spec.marks.clone());
92        let mut content_expr_cache = HashMap::new();
93        let mut updated_nodes = HashMap::new();
94        for (prop, type_) in &nodes {
95            if marks.contains_key(prop) {
96                return Err(schema_error(&format!(
97                    "{} 不能既是节点又是标记",
98                    prop
99                )));
100            }
101
102            let content_expr = type_.spec.content.as_deref().unwrap_or("");
103            let mark_expr = type_.spec.marks.as_deref();
104
105            let content_match = content_expr_cache
106                .entry(content_expr.to_string())
107                .or_insert_with(|| {
108                    ContentMatch::parse(content_expr.to_string(), &nodes)
109                })
110                .clone();
111
112            let mark_set = match mark_expr {
113                Some("_") => None,
114                Some(expr) => {
115                    let marks_result = gather_marks(
116                        &schema,
117                        expr.split_whitespace().collect(),
118                    );
119                    match marks_result {
120                        Ok(marks) => Some(marks.into_iter().cloned().collect()), // Convert Vec<&MarkType> to Vec<MarkType>
121                        Err(e) => return Err(schema_error(&e)),
122                    }
123                },
124                None => None,
125            };
126
127            let mut node = type_.clone();
128            node.content_match = Some(content_match);
129            node.mark_set = mark_set;
130            updated_nodes.insert(prop.clone(), node);
131        }
132        schema.nodes = updated_nodes;
133        schema.marks = marks;
134        schema.top_node_type = match schema.nodes.get(
135            &schema.spec.top_node.clone().unwrap_or_else(|| "doc".to_string()),
136        ) {
137            Some(node) => Some(node.clone()),
138            None => {
139                return Err(schema_error("未找到顶级节点类型定义"));
140            },
141        };
142
143        Ok(schema)
144    }
145}
146/// Schema 规范定义
147/// 包含节点和标记的原始定义信息
148#[derive(Clone, PartialEq, Eq, Debug)]
149pub struct SchemaSpec {
150    pub nodes: HashMap<String, NodeSpec>,
151    pub marks: HashMap<String, MarkSpec>,
152    pub top_node: Option<String>,
153}
154
155// 其他辅助函数...
156/// 获取属性的默认值映射
157/// 如果所有属性都有默认值，返回包含所有默认值的映射
158/// 如果任一属性没有默认值，返回 None
159pub fn default_attrs(
160    attrs: &HashMap<String, Attribute>
161) -> Option<HashMap<String, Value>> {
162    let mut defaults = HashMap::new();
163
164    for (attr_name, attr) in attrs {
165        if let Some(default) = &attr.default {
166            defaults.insert(attr_name.clone(), default.clone());
167        } else {
168            return None;
169        }
170    }
171
172    Some(defaults)
173}
174/// 属性规范定义
175#[derive(Clone, PartialEq, Debug, Eq, Hash, Serialize)]
176pub struct AttributeSpec {
177    /// 属性的默认值
178    pub default: Option<Value>,
179}
180/// 收集标记类型
181/// 根据给定的标记名称列表，收集对应的标记类型
182fn gather_marks<'a>(
183    schema: &'a Schema,
184    marks: Vec<&'a str>,
185) -> Result<Vec<&'a MarkType>, String> {
186    let mut found = Vec::new();
187
188    for name in marks {
189        if let Some(mark) = schema.marks.get(name) {
190            found.push(mark);
191        } else {
192            let mut ok = None;
193            for mark_ref in schema.marks.values() {
194                if name == "_"
195                    || mark_ref.spec.group.as_ref().is_some_and(|group| {
196                        group.split_whitespace().any(|g| g == name)
197                    })
198                {
199                    found.push(mark_ref);
200                    ok = Some(mark_ref);
201                    break;
202                }
203            }
204            if ok.is_none() {
205                return Err(format!("未知的标记类型: '{}'", name));
206            }
207        }
208    }
209    Ok(found)
210}
211/// 计算属性值
212/// 根据属性定义和提供的值计算最终的属性值
213pub fn compute_attrs(
214    attrs: &HashMap<String, Attribute>,
215    value: Option<&HashMap<String, Value>>,
216) -> Attrs {
217    let mut built = Attrs::default();
218
219    for (name, attr) in attrs {
220        let given = value.and_then(|v| v.get(name));
221
222        let given = match given {
223            Some(val) => val.clone(),
224            None => {
225                if attr.has_default {
226                    attr.default.clone().unwrap_or_else(|| {
227                        panic!("没有为属性提供默认值 {}", name)
228                    })
229                } else {
230                    Value::Null
231                }
232            },
233        };
234
235        built[&name] = given;
236    }
237
238    built
239}
mf_model/schema.rs

mf_model/
schema.rs
