mapcomplete/Customizations/JSON/FromJSON.ts
2021-03-29 01:20:06 +02:00

99 lines
No EOL
3.7 KiB
TypeScript

import {AndOrTagConfigJson} from "./TagConfigJson";
import {Utils} from "../../Utils";
import {RegexTag} from "../../Logic/Tags/RegexTag";
import {Or} from "../../Logic/Tags/Or";
import {And} from "../../Logic/Tags/And";
import {Tag} from "../../Logic/Tags/Tag";
import {TagsFilter} from "../../Logic/Tags/TagsFilter";
import SubstitutingTag from "../../Logic/Tags/SubstitutingTag";
export class FromJSON {
public static SimpleTag(json: string): Tag {
const tag = Utils.SplitFirst(json, "=");
return new Tag(tag[0], tag[1]);
}
public static Tag(json: AndOrTagConfigJson | string, context: string = ""): TagsFilter {
try {
return this.TagUnsafe(json, context);
} catch (e) {
console.error("Could not parse tag", json, "in context", context, "due to ", e)
throw e;
}
}
private static TagUnsafe(json: AndOrTagConfigJson | string, context: string = ""): TagsFilter {
if (json === undefined) {
throw `Error while parsing a tag: 'json' is undefined in ${context}. Make sure all the tags are defined and at least one tag is present in a complex expression`
}
if (typeof (json) == "string") {
const tag = json as string;
if (tag.indexOf("!~") >= 0) {
const split = Utils.SplitFirst(tag, "!~");
if (split[1] === "*") {
throw `Don't use 'key!~*' - use 'key=' instead (empty string as value (in the tag ${tag} while parsing ${context})`
}
return new RegexTag(
split[0],
new RegExp("^" + split[1] + "$"),
true
);
}
if (tag.indexOf("~~") >= 0) {
const split = Utils.SplitFirst(tag, "~~");
if (split[1] === "*") {
split[1] = "..*"
}
return new RegexTag(
new RegExp("^" + split[0] + "$"),
new RegExp("^" + split[1] + "$")
);
}
if(tag.indexOf(":=") >= 0){
const split = Utils.SplitFirst(tag, ":=");
return new SubstitutingTag(split[0], split[1]);
}
if (tag.indexOf("!=") >= 0) {
const split = Utils.SplitFirst(tag, "!=");
if (split[1] === "*") {
split[1] = "..*"
}
return new RegexTag(
split[0],
new RegExp("^" + split[1] + "$"),
true
);
}
if (tag.indexOf("~") >= 0) {
const split = Utils.SplitFirst(tag, "~");
if (split[1] === "*") {
split[1] = "..*"
}
return new RegexTag(
split[0],
new RegExp("^" + split[1] + "$")
);
}
if (tag.indexOf("=") >= 0) {
const split = Utils.SplitFirst(tag, "=");
if (split[1] == "*") {
throw `Error while parsing tag '${tag}' in ${context}: detected a wildcard on a normal value. Use a regex pattern instead`
}
return new Tag(split[0], split[1])
}
throw `Error while parsing tag '${tag}' in ${context}: no key part and value part were found`
}
if (json.and !== undefined) {
return new And(json.and.map(t => FromJSON.Tag(t, context)));
}
if (json.or !== undefined) {
return new Or(json.or.map(t => FromJSON.Tag(t, context)));
}
}
}