344 lines
9.2 KiB
TypeScript
344 lines
9.2 KiB
TypeScript
import {Utils} from "../Utils";
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export abstract class TagsFilter {
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abstract matches(tags: { k: string, v: string }[]): boolean
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abstract asOverpass(): string[]
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abstract substituteValues(tags: any) : TagsFilter;
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matchesProperties(properties: any) : boolean{
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return this.matches(TagUtils.proprtiesToKV(properties));
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}
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abstract asHumanString(linkToWiki: boolean);
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}
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export class Regex extends TagsFilter {
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private _k: string;
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private _r: string;
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constructor(k: string, r: string) {
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super();
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this._k = k;
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this._r = r;
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}
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asOverpass(): string[] {
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return ["['" + this._k + "'~'" + this._r + "']"];
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}
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matches(tags: { k: string; v: string }[]): boolean {
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if(!(tags instanceof Array)){
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throw "You used 'matches' on something that is not a list. Did you mean to use 'matchesProperties'?"
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}
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for (const tag of tags) {
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if (tag.k === this._k) {
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if (tag.v === "") {
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// This tag has been removed
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return false;
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}
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if (this._r === "*") {
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// Any is allowed
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return true;
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}
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const matchCount =tag.v.match(this._r)?.length;
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return (matchCount ?? 0) > 0;
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}
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}
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return false;
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}
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substituteValues(tags: any) : TagsFilter{
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throw "Substituting values is not supported on regex tags"
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}
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asHumanString() {
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return this._k+"~="+this._r;
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}
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}
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export class Tag extends TagsFilter {
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public key: string
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public value: string | RegExp
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public invertValue: boolean
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constructor(key: string | RegExp, value: string | RegExp, invertValue = false) {
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if (value instanceof RegExp && invertValue) {
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throw new Error("Unsupported combination: RegExp value and inverted value (use regex to invert the match)")
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}
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super()
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// @ts-ignore
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this.key = key
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// @ts-ignore
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this.value = value
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this.invertValue = invertValue
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}
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private static regexOrStrMatches(regexOrStr: string | RegExp, testStr: string) {
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if (typeof regexOrStr === 'string') {
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return regexOrStr === testStr
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} else if (regexOrStr instanceof RegExp) {
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return (regexOrStr as RegExp).test(testStr)
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}
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throw new Error("<regexOrStr> must be of type RegExp or string")
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}
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matches(tags: { k: string; v: string }[]): boolean {
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for (const tag of tags) {
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if (Tag.regexOrStrMatches(this.key, tag.k)) {
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if (tag.v === "") {
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// This tag has been removed -> always matches false
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return false;
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}
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if (this.value === "*") {
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// Any is allowed (as long as the tag is not empty)
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return true;
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}
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if(this.value === tag.v){
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return !this.invertValue;
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}
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return Tag.regexOrStrMatches(this.value, tag.v) !== this.invertValue
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}
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}
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if (this.value === "") {
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return true
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}
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return this.invertValue
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}
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asOverpass(): string[] {
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// @ts-ignore
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const keyIsRegex = this.key instanceof RegExp
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// @ts-ignore
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const key = keyIsRegex ? (this.key as RegExp).source : this.key
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// @ts-ignore
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const valIsRegex = this.value instanceof RegExp
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// @ts-ignore
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const val = valIsRegex ? (this.value as RegExp).source : this.value
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const regexKeyPrefix = keyIsRegex ? '~' : ''
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const anyVal = this.value === "*"
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if (anyVal && !keyIsRegex) {
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return [`[${regexKeyPrefix}"${key}"]`];
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}
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if (this.value === "") {
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// NOT having this key
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return ['[!"' + key + '"]'];
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}
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const compareOperator = (valIsRegex || keyIsRegex) ? '~' : (this.invertValue ? '!=' : '=')
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return [`[${regexKeyPrefix}"${key}"${compareOperator}"${keyIsRegex && anyVal ? '.' : val}"]`];
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}
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substituteValues(tags: any) {
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if (typeof this.value !== 'string') {
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throw new Error("substituteValues() only possible with tag value of type string")
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}
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return new Tag(this.key, TagUtils.ApplyTemplate(this.value as string, tags));
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}
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asHumanString(linkToWiki: boolean) {
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let v = ""
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if (typeof (this.value) === "string") {
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v = this.value;
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}else{
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// value is a regex
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v = this.value.source;
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}
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v = Utils.EllipsesAfter(v, 25);
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if (linkToWiki) {
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return `<a href='https://wiki.openstreetmap.org/wiki/Key:${this.key}' target='_blank'>${this.key}</a>` +
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`=` +
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`<a href='https://wiki.openstreetmap.org/wiki/Tag:${this.key}%3D${this.value}' target='_blank'>${v}</a>`
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}
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if (typeof (this.value) === "string") {
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return this.key + (this.invertValue ? "!=": "=") + v;
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}else{
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// value is a regex
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return this.key + "~=" + this.value.source;
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}
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}
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}
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export function anyValueExcept(key: string, exceptValue: string) {
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return new And([
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new Tag(key, "*"),
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new Tag(key, exceptValue, true)
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])
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}
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export class Or extends TagsFilter {
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public or: TagsFilter[]
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constructor(or: TagsFilter[]) {
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super();
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this.or = or;
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}
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matches(tags: { k: string; v: string }[]): boolean {
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for (const tagsFilter of this.or) {
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if (tagsFilter.matches(tags)) {
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return true;
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}
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}
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return false;
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}
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asOverpass(): string[] {
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const choices = [];
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for (const tagsFilter of this.or) {
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const subChoices = tagsFilter.asOverpass();
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for(const subChoice of subChoices){
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choices.push(subChoice)
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}
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}
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return choices;
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}
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substituteValues(tags: any): TagsFilter {
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const newChoices = [];
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for (const c of this.or) {
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newChoices.push(c.substituteValues(tags));
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}
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return new Or(newChoices);
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}
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asHumanString(linkToWiki: boolean) {
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return this.or.map(t => t.asHumanString(linkToWiki)).join("|");
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}
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}
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export class And extends TagsFilter {
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public and: TagsFilter[]
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constructor(and: TagsFilter[]) {
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super();
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this.and = and;
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}
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matches(tags: { k: string; v: string }[]): boolean {
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for (const tagsFilter of this.and) {
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if (!tagsFilter.matches(tags)) {
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return false;
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}
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}
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return true;
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}
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private combine(filter: string, choices: string[]): string[] {
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var values = []
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for (const or of choices) {
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values.push(filter + or);
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}
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return values;
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}
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asOverpass(): string[] {
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var allChoices: string[] = null;
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for (const andElement of this.and) {
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var andElementFilter = andElement.asOverpass();
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if (allChoices === null) {
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allChoices = andElementFilter;
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continue;
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}
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var newChoices: string[] = []
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for (var choice of allChoices) {
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newChoices.push(
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...this.combine(choice, andElementFilter)
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)
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}
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allChoices = newChoices;
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}
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return allChoices;
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}
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substituteValues(tags: any): TagsFilter {
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const newChoices = [];
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for (const c of this.and) {
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newChoices.push(c.substituteValues(tags));
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}
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return new And(newChoices);
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}
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asHumanString(linkToWiki: boolean) {
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return this.and.map(t => t.asHumanString(linkToWiki)).join("&");
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}
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}
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export class Not extends TagsFilter{
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private not: TagsFilter;
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constructor(not: TagsFilter) {
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super();
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this.not = not;
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}
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asOverpass(): string[] {
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throw "Not supported yet"
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}
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matches(tags: { k: string; v: string }[]): boolean {
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return !this.not.matches(tags);
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}
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substituteValues(tags: any): TagsFilter {
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return new Not(this.not.substituteValues(tags));
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}
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asHumanString(linkToWiki: boolean) {
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return "!" + this.not.asHumanString(linkToWiki);
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}
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}
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export class TagUtils {
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static proprtiesToKV(properties: any): { k: string, v: string }[] {
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const result = [];
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for (const k in properties) {
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result.push({k: k, v: properties[k]})
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}
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return result;
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}
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static ApplyTemplate(template: string, tags: any): string {
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for (const k in tags) {
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while (template.indexOf("{" + k + "}") >= 0) {
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const escaped = tags[k].replace(/</g, '<').replace(/>/g, '>');
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template = template.replace("{" + k + "}", escaped);
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}
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}
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return template;
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}
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static KVtoProperties(tags: Tag[]): any {
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const properties = {};
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for (const tag of tags) {
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properties[tag.key] = tag.value
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}
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return properties;
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}
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}
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