import { OptionDataValue, DimensionLoose, Dictionary } from './types.js';
|
import { HashMap } from 'zrender/lib/core/util.js';
|
import { RawValueParserType, RelationalOperator } from '../data/helper/dataValueHelper.js';
|
/**
|
* The structured expression considered:
|
* (1) Literal simplicity
|
* (2) Sementic displayed clearly
|
*
|
* Sementic supports:
|
* (1) relational expression
|
* (2) logical expression
|
*
|
* For example:
|
* ```js
|
* {
|
* and: [{
|
* or: [{
|
* dimension: 'Year', gt: 2012, lt: 2019
|
* }, {
|
* dimension: 'Year', '>': 2002, '<=': 2009
|
* }]
|
* }, {
|
* dimension: 'Product', eq: 'Tofu'
|
* }]
|
* }
|
*
|
* { dimension: 'Product', eq: 'Tofu' }
|
*
|
* {
|
* or: [
|
* { dimension: 'Product', value: 'Tofu' },
|
* { dimension: 'Product', value: 'Biscuit' }
|
* ]
|
* }
|
*
|
* {
|
* and: [true]
|
* }
|
* ```
|
*
|
* [PARSER]
|
* In an relation expression object, we can specify some built-in parsers:
|
* ```js
|
* // Trim if string
|
* {
|
* parser: 'trim',
|
* eq: 'Flowers'
|
* }
|
* // Parse as time and enable arithmetic relation comparison.
|
* {
|
* parser: 'time',
|
* lt: '2012-12-12'
|
* }
|
* // Normalize number-like string and make '-' to Null.
|
* {
|
* parser: 'time',
|
* lt: '2012-12-12'
|
* }
|
* // Normalize to number:
|
* // + number-like string (like ' 123 ') can be converted to a number.
|
* // + where null/undefined or other string will be converted to NaN.
|
* {
|
* parser: 'number',
|
* eq: 2011
|
* }
|
* // RegExp, include the feature in SQL: `like '%xxx%'`.
|
* {
|
* reg: /^asdf$/
|
* }
|
* {
|
* reg: '^asdf$' // Serializable reg exp, will be `new RegExp(...)`
|
* }
|
* ```
|
*
|
*
|
* [EMPTY_RULE]
|
* (1) If a relational expression set value as `null`/`undefined` like:
|
* `{ dimension: 'Product', lt: undefined }`,
|
* The result will be `false` rather than `true`.
|
* Consider the case like "filter condition", return all result when null/undefined
|
* is probably not expected and even dangours.
|
* (2) If a relational expression has no operator like:
|
* `{ dimension: 'Product' }`,
|
* An error will be thrown. Because it is probably a mistake.
|
* (3) If a logical expression has no children like
|
* `{ and: undefined }` or `{ and: [] }`,
|
* An error will be thrown. Because it is probably an mistake.
|
* (4) If intending have a condition that always `true` or always `false`,
|
* Use `true` or `flase`.
|
* The entire condition can be `true`/`false`,
|
* or also can be `{ and: [true] }`, `{ or: [false] }`
|
*/
|
/**
|
* Date string and ordinal string can be accepted.
|
*/
|
interface RelationalExpressionOptionByOp extends Record<RelationalOperator, OptionDataValue> {
|
reg?: RegExp | string;
|
}
|
declare const RELATIONAL_EXPRESSION_OP_ALIAS_MAP: {
|
readonly value: "eq";
|
readonly '<': "lt";
|
readonly '<=': "lte";
|
readonly '>': "gt";
|
readonly '>=': "gte";
|
readonly '=': "eq";
|
readonly '!=': "ne";
|
readonly '<>': "ne";
|
};
|
declare type RelationalExpressionOptionByOpAlias = Record<keyof typeof RELATIONAL_EXPRESSION_OP_ALIAS_MAP, OptionDataValue>;
|
interface RelationalExpressionOption extends RelationalExpressionOptionByOp, RelationalExpressionOptionByOpAlias {
|
dimension?: DimensionLoose;
|
parser?: RawValueParserType;
|
}
|
interface LogicalExpressionOption {
|
and?: LogicalExpressionSubOption[];
|
or?: LogicalExpressionSubOption[];
|
not?: LogicalExpressionSubOption;
|
}
|
declare type LogicalExpressionSubOption = LogicalExpressionOption | RelationalExpressionOption | TrueFalseExpressionOption;
|
export declare type TrueExpressionOption = true;
|
export declare type FalseExpressionOption = false;
|
export declare type TrueFalseExpressionOption = TrueExpressionOption | FalseExpressionOption;
|
export declare type ConditionalExpressionOption = LogicalExpressionOption | RelationalExpressionOption | TrueFalseExpressionOption;
|
declare type ValueGetterParam = Dictionary<unknown>;
|
export interface ConditionalExpressionValueGetterParamGetter<VGP extends ValueGetterParam = ValueGetterParam> {
|
(relExpOption: RelationalExpressionOption): VGP;
|
}
|
export interface ConditionalExpressionValueGetter<VGP extends ValueGetterParam = ValueGetterParam> {
|
(param: VGP): OptionDataValue;
|
}
|
declare class ConditionalExpressionParsed {
|
private _cond;
|
constructor(exprOption: ConditionalExpressionOption, getters: ConditionalGetters);
|
evaluate(): boolean;
|
}
|
interface ConditionalGetters<VGP extends ValueGetterParam = ValueGetterParam> {
|
prepareGetValue: ConditionalExpressionValueGetterParamGetter<VGP>;
|
getValue: ConditionalExpressionValueGetter<VGP>;
|
valueGetterAttrMap: HashMap<boolean, string>;
|
}
|
export declare function parseConditionalExpression<VGP extends ValueGetterParam = ValueGetterParam>(exprOption: ConditionalExpressionOption, getters: ConditionalGetters<VGP>): ConditionalExpressionParsed;
|
export {};
|
