mirror of
https://activitypub.software/TransFem-org/sfm-js
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Added documentation
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Real-Septicake
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3 changed files with 405 additions and 0 deletions
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@ -2,18 +2,37 @@
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// Parsimmon-like stateful parser combinators
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//
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/**
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* Holds the information from a successful parse.
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*/
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export type Success<T> = {
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success: true;
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value: T;
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index: number;
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};
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/**
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* Represents a failed parse.
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*/
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export type Failure = { success: false };
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/**
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* Possible results from a parse.
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*/
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export type Result<T> = Success<T> | Failure;
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/**
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* The function used by a parser to determine if it succeeds or fails.
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*/
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export type ParserHandler<T> = (input: string, index: number, state: any) => Result<T>
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/**
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* A function that always returns a parse success.
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*
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* @param index The index of the success.
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* @param value The value of the success.
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* @returns A {@link Success} object.
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*/
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export function success<T>(index: number, value: T): Success<T> {
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return {
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success: true,
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@ -22,10 +41,18 @@ export function success<T>(index: number, value: T): Success<T> {
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};
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}
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/**
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* A function that always returns a parse failure.
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*
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* @returns A {@link Failure} object.
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*/
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export function failure(): Failure {
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return { success: false };
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}
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/**
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* The parser class.
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*/
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export class Parser<T> {
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public name?: string;
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public handler: ParserHandler<T>;
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@ -50,6 +77,13 @@ export class Parser<T> {
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this.name = name;
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}
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/**
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* A function that maps the result of the parse with the provided function if successful, and returns a {@link Failure}
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* otherwise.
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*
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* @param fn The function used to map the output of the parser.
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* @returns The result of the parser mapped with `fn`.
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*/
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map<U>(fn: (value: T) => U): Parser<U> {
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return new Parser((input, index, state) => {
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const result = this.handler(input, index, state);
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@ -60,6 +94,11 @@ export class Parser<T> {
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});
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}
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/**
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* A function that returns the plaintext related to the {@link Success} and a {@link Failure} otherwise.
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*
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* @returns The plaintext related to the successful parse, and a {@link Failure} if the parse failed.
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*/
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text(): Parser<string> {
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return new Parser((input, index, state) => {
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const result = this.handler(input, index, state);
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@ -71,6 +110,13 @@ export class Parser<T> {
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});
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}
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/**
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* A function that returns a {@link Parser} that must succeed at least of `min` times in order to return
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* a {@link Success} and returns a {@link Failure} otherwise.
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*
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* @param min The minimum amount of times this parse must succeed to return a {@link Success}.
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* @returns A Parser that returns a {@link Success} object it matches enough times, and a {@link Failure} otherwise.
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*/
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many(min: number): Parser<T[]> {
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return new Parser((input, index, state) => {
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let result;
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@ -91,6 +137,13 @@ export class Parser<T> {
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});
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}
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/**
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* A function that checks if the supplied separator appears between this separator's value.
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*
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* @param separator The parser representing the separator that must appear between this parser's value.
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* @param min The minimum amount of times the separator must appear.
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* @returns A {@link Success} object if the minimum separator count is met, and a {@link Failure} otherwise.
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*/
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sep(separator: Parser<any>, min: number): Parser<T[]> {
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if (min < 1) {
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throw new Error('"min" must be a value greater than or equal to 1.');
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@ -104,6 +157,12 @@ export class Parser<T> {
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]).map(result => [result[0], ...result[1]]);
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}
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/**
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* A function that attempts to match this parser, but returns a {@link Success} object with the
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* value `null` if it fails.
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*
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* @returns A {@link Success} object.
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*/
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option<T>(): Parser<T | null> {
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return alt([
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this,
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@ -112,6 +171,12 @@ export class Parser<T> {
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}
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}
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/**
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* A function that returns a {@link Parser} that succeeds if it matches the supplied string.
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*
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* @param value The string that the returned {@link Parser} checks for.
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* @returns A {@link Parser} that matches the supplied string.
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*/
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export function str<T extends string>(value: T): Parser<T> {
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return new Parser((input, index, _state) => {
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if ((input.length - index) < value.length) {
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@ -124,6 +189,12 @@ export function str<T extends string>(value: T): Parser<T> {
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});
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}
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/**
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* A function that returns {@link Parser} that succeeds if the input matches the supplied regular expression.
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*
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* @param pattern The regular expression that the returned {@link Parser} tries to match.
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* @returns A {@link Parser} that checks if the input matches the supplied regular expression.
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*/
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export function regexp<T extends RegExp>(pattern: T): Parser<string> {
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const re = RegExp(`^(?:${pattern.source})`, pattern.flags);
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return new Parser((input, index, _state) => {
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@ -136,6 +207,20 @@ export function regexp<T extends RegExp>(pattern: T): Parser<string> {
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});
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}
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/**
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* A function that returns a {@link Parser} that goes through the parsers provided, in order, and checks that they all
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* succeed. A {@link Failure} object is returned if any of the parsers fails.
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* The value in the {@link Success} returned by the parser varies depending on the value of `select`:
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*
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* If select is `null`, then the array of the results of the supplied parsers is returned, otherwise the value
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* in the array at the specified index is returned.
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*
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* @param parsers The array of {@link Parser Parsers} that are checked to see if it succeeds.
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* @param select The index of the result array that is returned.
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* @returns A {@link Parser} that runs through the parsers in the order that they were provided and returns
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* a value based on the state of `select` (the entire array if `null`, else the value held at the
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* index specified by `select`).
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*/
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export function seq(parsers: Parser<any>[], select?: number): Parser<any> {
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return new Parser((input, index, state) => {
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let result;
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@ -153,6 +238,15 @@ export function seq(parsers: Parser<any>[], select?: number): Parser<any> {
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});
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}
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/**
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* A function that returns a {@link Parser} that goes through the parsers provided, in order, and checks if each succeeds.
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* If one fails, the next parser is tested, and this pattern is continued until the final parser is tested, at which point
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* the parser will return a {@link Failure} if it still fails. If any of the parsers succeed, the resulting {@link Success}
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* is returned immediately.
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*
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* @param parsers The {@link Parser Parsers} that should be used.
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* @returns A {@link Parser} that returns the first {@link Success} from the supplied parsers.
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*/
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export function alt(parsers: Parser<any>[]): Parser<any> {
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return new Parser((input, index, state) => {
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let result;
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@ -166,12 +260,24 @@ export function alt(parsers: Parser<any>[]): Parser<any> {
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});
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}
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/**
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* A function that returns a {@link Parser} that always succeeds, returning a {@link Success} object with the supplied value.
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*
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* @param value The value to be used in the returned {@link Success} object.
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* @returns A {@link Parser} that always returns a {@link Success} with the specified value.
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*/
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function succeeded<T>(value: T): Parser<T> {
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return new Parser((_input, index, _state) => {
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return success(index, value);
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});
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}
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/**
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* A function that returns a {@link Parser} that inverts the result of the parser supplied.
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*
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* @param parser The {@link Parser} to be matched.
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* @returns A {@link Success} with the value `null` if the parser fails, or a {@link Failure} if it succeeds.
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*/
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export function notMatch(parser: Parser<any>): Parser<null> {
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return new Parser((input, index, state) => {
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const result = parser.handler(input, index, state);
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@ -181,6 +287,15 @@ export function notMatch(parser: Parser<any>): Parser<null> {
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});
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}
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/**
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* A function that returns a {@link Parser} that fails if `parserExcluded` succeeds, and returns the result of `parserIncluded`
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* otherwise.
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*
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* @param parserIncluded The {@link Parser} that should succeed
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* @param parserExcluded The {@link Parser} that should fail
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* @returns A {@link Failure} object if `parserExcluded` succeeds, or if `parserIncluded` fails, and a {@link Success} object
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* otherwise.
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*/
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export function difference(parserIncluded: Parser<any>, parserExcluded: Parser<any>): Parser<string> {
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return new Parser((input, index, state) => {
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const exclude = parserExcluded.handler(input, index, state);
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@ -193,11 +308,16 @@ export function difference(parserIncluded: Parser<any>, parserExcluded: Parser<a
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});
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}
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/** A {@link Parser} that matches the carriage return character `\r`. */
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export const cr = str('\r');
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/** A {@link Parser} that matches the line feed character `\n`. */
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export const lf = str('\n');
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/** A {@link Parser} that matches the character sequence `\r\n`. */
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export const crlf = str('\r\n');
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/** A {@link Parser} that matches for any valid new line sequences. */
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export const newline = alt([crlf, cr, lf]);
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/** A {@link Parser} that succeeds so long as it is not at the end of the input string. */
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export const char = new Parser((input, index, _state) => {
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if ((input.length - index) < 1) {
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return failure();
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@ -206,6 +326,10 @@ export const char = new Parser((input, index, _state) => {
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return success(index + 1, value);
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});
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/**
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* A {@link Parser} that checks that the current position is the beginning of a line. For this parser to succeed,
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* either the current index must be zero, or the previous character is a `\n` or `\r`.
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*/
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export const lineBegin = new Parser((input, index, state) => {
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if (index === 0) {
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return success(index, null);
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@ -219,6 +343,10 @@ export const lineBegin = new Parser((input, index, state) => {
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return failure();
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});
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/**
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* A {@link Parser} that checks that the current position is the end of a line. For this parser to succeed, either the current
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* index must be equal to the input length, or the current character is a `\n` or `\r`.
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*/
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export const lineEnd = new Parser((input, index, state) => {
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if (index === input.length) {
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return success(index, null);
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@ -232,6 +360,12 @@ export const lineEnd = new Parser((input, index, state) => {
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return failure();
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});
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/**
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* A function that lazily loads the supplied {@link Parser}
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*
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* @param fn The {@link Parser} that the returned parser should use.
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* @returns A {@link Parser} that checks using the supplied parser's {@link Parser.handler}
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*/
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export function lazy<T>(fn: () => Parser<T>): Parser<T> {
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const parser: Parser<T> = new Parser((input, index, state) => {
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parser.handler = fn().handler;
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@ -3,10 +3,21 @@ import { language } from './parser';
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import { mergeText } from './util';
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import * as P from './core';
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/**
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* A type representing the available options for the full parser.
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*/
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export type FullParserOpts = {
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nestLimit?: number;
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};
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/**
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* A function that parses through the input plaintext with the full parser and returns the AST representing the
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* result.
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*
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* @param input The input string to parse.
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* @param opts The options used for the parsing.
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* @returns An array of nodes representing the resulting styles.
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*/
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export function fullParser(input: string, opts: FullParserOpts): M.MfmNode[] {
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const result = language.fullParser.handler(input, 0, {
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nestLimit: (opts.nestLimit != null) ? opts.nestLimit : 20,
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@ -17,6 +28,13 @@ export function fullParser(input: string, opts: FullParserOpts): M.MfmNode[] {
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return mergeText(result.value);
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}
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/**
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* A function that parses through the input plaintext with the simple parser and returns the AST representing the
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* result.
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*
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* @param input The input string to parse.
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* @returns An array of simple nodes represennting the resulting styles.
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*/
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export function simpleParser(input: string): M.MfmSimpleNode[] {
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const result = language.simpleParser.handler(input, 0, { }) as P.Success<any>;
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return mergeText(result.value);
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@ -12,10 +12,25 @@ import twemojiRegex from '@twemoji/parser/dist/lib/regex';
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type ArgPair = { k: string, v: string | true };
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type Args = Record<string, string | true>;
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/** A {@link P.Parser Parser} that matches all whitespace characters other than ones representing new lines */
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const space = P.difference(P.regexp(/\s/), P.newline);
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/** A {@link P.Parser Parser} that matches all alphanumeric characters */
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const alphaAndNum = P.regexp(/\p{Letter}|\p{Number}/iu);
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/** A {@link P.Parser Parser} that matches any valid new line sequences */
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const newLine = P.alt([P.crlf, P.cr, P.lf]);
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/**
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* A function that returns a {@link P.Parser Parser} which goes through the supplied parsers sequentially.
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* If the first provided parser fails, a {@link P.Failure Failure} object is returned, the plaintext of the
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* successfully parsed portion of the input if any other parsers fail, and an array of the values of the
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* parsers' {@link P.Success Successes}.
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*
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* @param parsers The list of {@link P.Parser Parsers} to use.
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* @returns A {@link P.Parser Parser} that goes through the supplied parsers sequentially and makes sure that each
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* succeeds. If the first parser fails, a {@link P.Failure Failure} object is returned. If any other parser
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* fails, the plaintext of the successfully parsed portion of the input text is returned. If all succeed,
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* the array of each {@link P.Success Success'} value is returned.
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*/
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function seqOrText(parsers: P.Parser<any>[]): P.Parser<any[] | string> {
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return new P.Parser<any[] | string>((input, index, state) => {
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const accum: any[] = [];
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@ -36,18 +51,34 @@ function seqOrText(parsers: P.Parser<any>[]): P.Parser<any[] | string> {
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});
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}
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/**
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* A {@link P.Parser Parser} that succeeds if the supplied state is not a link label.
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*/
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const notLinkLabel = new P.Parser((_input, index, state) => {
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return (!state.linkLabel)
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? P.success(index, null)
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: P.failure();
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});
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/**
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* A {@link P.Parser Parser} that succeeds if the current nest depth is less than the nest limit.
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*/
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const nestable = new P.Parser((_input, index, state) => {
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return (state.depth < state.nestLimit)
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? P.success(index, null)
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: P.failure();
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});
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/**
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* A function that returns a {@link P.Parser Parser} that calls `parser` if it is possible to nest, and `fallback`
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* otherwise.
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*
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* @param parser The {@link P.Parser Parser} that gets used if it is currently possible to nest.
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* @param fallback The {@link P.Parser Parser} that gets used if it is not currently possible to nest.
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* If `null`, {@link P.char} is used.
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* @returns A {@link P.Parser Parser} that checks that it is possible to nest, returning the result of `parser` if it is,
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* otherwise returning the result of `fallback`
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*/
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function nest<T>(parser: P.Parser<T>, fallback?: P.Parser<string>): P.Parser<T | string> {
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// nesting limited? -> No: specified parser, Yes: fallback parser (default = P.char)
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const inner = P.alt([
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@ -62,15 +93,37 @@ function nest<T>(parser: P.Parser<T>, fallback?: P.Parser<string>): P.Parser<T |
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});
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}
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/**
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* The collection of {@link P.Parser Parsers} representing the rules that make up SFM
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*/
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export const language = P.createLanguage({
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/**
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* A {@link P.Parser Parser} that matches every SFM rule as many times as possible.
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*
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* @param r The rules of SFM
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* @returns A {@link P.Parser Parser} that matches every rule as many times as possible
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*/
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fullParser: r => {
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return r.full.many(0);
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},
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/**
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* A {@link P.Parser Parser} that matches {@link language.unicodeEmoji}, {@link language.emojiCode},
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* and {@link language.text} as many times as possible
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*
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* @param r The rules of SFM
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* @returns A {@link P.Parser Parser} that matches very few SFM rules as many times as possible.
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*/
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simpleParser: r => {
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return r.simple.many(0);
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},
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/**
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* A {@link P.Parser Parser} that matches any SFM rule.
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||||
*
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||||
* @param r The rules of SFM
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||||
* @returns A {@link P.Parser Parser} that matches any rule.
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||||
*/
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full: r => {
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return P.alt([
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// Regexp
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@ -129,6 +182,13 @@ export const language = P.createLanguage({
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]);
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},
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/**
|
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* A {@link P.Parser Parser} that only matches {@link language.unicodeEmoji}, {@link language.emojiCode},
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* and {@link language.text}.
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*
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* @param r The rules of SFM
|
||||
* @returns A {@link P.Parser Parser} that matches very few SFM rules.
|
||||
*/
|
||||
simple: r => {
|
||||
return P.alt([
|
||||
r.unicodeEmoji, // Regexp
|
||||
|
|
@ -137,6 +197,12 @@ export const language = P.createLanguage({
|
|||
]);
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that only matches rules that can be done without disrupting text.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns A {@link P.Parser Parser} that matches all inline rules.
|
||||
*/
|
||||
inline: r => {
|
||||
return P.alt([
|
||||
// Regexp
|
||||
|
|
@ -185,6 +251,12 @@ export const language = P.createLanguage({
|
|||
]);
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches single lines that begin with a `>` character.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
quote: r => {
|
||||
const lines: P.Parser<string[]> = P.seq([
|
||||
P.str('>'),
|
||||
|
|
@ -222,6 +294,14 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is surrounded by the ` ``` ` mark.
|
||||
* Text directly after the opening mark decides the language that the syntax highlighting uses.
|
||||
* The marks must be on their own lines.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
codeBlock: r => {
|
||||
const mark = P.str('```');
|
||||
return P.seq([
|
||||
|
|
@ -242,6 +322,13 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is opened with `\[` and closed with `\]`.
|
||||
* The marks do not have to be on their own lines, nor do they need to be the first.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
mathBlock: r => {
|
||||
const open = P.str('\\[');
|
||||
const close = P.str('\\]');
|
||||
|
|
@ -259,6 +346,14 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is opened with `<center>` and closed with `</center>`.
|
||||
* The marks do not have to be on their own lines.
|
||||
* The opening mark must appear at the beginning of its line, and the closing mark must appear at the end of its line.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
centerTag: r => {
|
||||
const open = P.str('<center>');
|
||||
const close = P.str('</center>');
|
||||
|
|
@ -277,6 +372,13 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is surrounded with the `***` mark.
|
||||
* The marks do not have to be on their own lines and have no restrictions on placement.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
big: r => {
|
||||
const mark = P.str('***');
|
||||
return seqOrText([
|
||||
|
|
@ -289,6 +391,13 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is surrounded with the `**` mark.
|
||||
* The marks do not have to be on their own lines and have no restrictions on placement.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
boldAsta: r => {
|
||||
const mark = P.str('**');
|
||||
return seqOrText([
|
||||
|
|
@ -301,6 +410,13 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is opened with `<b>` and closed with `</b>`.
|
||||
* The marks do not have to be on their own lines and have no restrictions on placement.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
boldTag: r => {
|
||||
const open = P.str('<b>');
|
||||
const close = P.str('</b>');
|
||||
|
|
@ -314,6 +430,13 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is surrounded with the `__` mark.
|
||||
* The marks do not have to be on their own lines and have no restrictions on placement.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
boldUnder: r => {
|
||||
const mark = P.str('__');
|
||||
return P.seq([
|
||||
|
|
@ -323,6 +446,13 @@ export const language = P.createLanguage({
|
|||
]).map(result => M.BOLD(mergeText(result[1] as string[])));
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is opened with `<small>` and closed with `</small>`.
|
||||
* The marks do not have to be on their own lines and have no restrictions on placement.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
smallTag: r => {
|
||||
const open = P.str('<small>');
|
||||
const close = P.str('</small>');
|
||||
|
|
@ -336,6 +466,13 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is opened with `<i>` and closed with `</i>`.
|
||||
* The marks do not have to be on their own lines and have no restrictions on placement.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
italicTag: r => {
|
||||
const open = P.str('<i>');
|
||||
const close = P.str('</i>');
|
||||
|
|
@ -349,6 +486,13 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is surrounded with the `*` mark.
|
||||
* The marks do not have to be on their own lines and have no restrictions on placement.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
italicAsta: r => {
|
||||
const mark = P.str('*');
|
||||
const parser = P.seq([
|
||||
|
|
@ -370,6 +514,13 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is surrounded with the `_` mark.
|
||||
* The marks do not have to be on their own lines and have no restrictions on placement.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
italicUnder: r => {
|
||||
const mark = P.str('_');
|
||||
const parser = P.seq([
|
||||
|
|
@ -391,6 +542,13 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is opened with `<s>` and closed with `</s>`.
|
||||
* The marks do not have to be on their own lines and have no restrictions on placement.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
strikeTag: r => {
|
||||
const open = P.str('<s>');
|
||||
const close = P.str('</s>');
|
||||
|
|
@ -404,6 +562,13 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is surrounded with the `~~` mark.
|
||||
* The marks do not have to be on their own lines and have no restrictions on placement.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
strikeWave: r => {
|
||||
const mark = P.str('~~');
|
||||
return seqOrText([
|
||||
|
|
@ -416,11 +581,24 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches unicode emojis according to a regex.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
unicodeEmoji: r => {
|
||||
const emoji = RegExp(twemojiRegex.source);
|
||||
return P.regexp(emoji).map(content => M.UNI_EMOJI(content));
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is opened with `<plain>` and closed with `</plain>`.
|
||||
* The marks do not have to be on their own lines and have no restrictions on placement.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
plainTag: r => {
|
||||
const open = P.str('<plain>');
|
||||
const close = P.str('</plain>');
|
||||
|
|
@ -483,6 +661,13 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches multi-line text that is surrounded with the `` ` `` mark.
|
||||
* The marks do not have to be on their own lines and have no restrictions on placement.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
inlineCode: r => {
|
||||
const mark = P.str('`');
|
||||
return P.seq([
|
||||
|
|
@ -495,6 +680,13 @@ export const language = P.createLanguage({
|
|||
]).map(result => M.INLINE_CODE(result[1].join('')));
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches single-line text opened with `\(` and closed with `\)`.
|
||||
* The marks must be on the same line, but have no other restrictions on placement.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
mathInline: r => {
|
||||
const open = P.str('\\(');
|
||||
const close = P.str('\\)');
|
||||
|
|
@ -508,6 +700,14 @@ export const language = P.createLanguage({
|
|||
]).map(result => M.MATH_INLINE(result[1].join('')));
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches user mentions, which all must begin with `@{username}`, but only have to be followed by
|
||||
* `@{hostname}` if the user is on a different instance.
|
||||
* The mention must be contained within one line, but it has no other restrictions on placement.
|
||||
*
|
||||
* @param r the rules of SFM
|
||||
* @returns The {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
mention: r => {
|
||||
const parser = P.seq([
|
||||
notLinkLabel,
|
||||
|
|
@ -574,6 +774,15 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches single word hashtags starting with the character `#`.
|
||||
* The contents of the hashtag are limited to alphanumeric characters, but cannot be made up of exclusively numbers.
|
||||
* There are some characters that must be closed with another in order for the parse to succeed.
|
||||
* There are no restrictions on the placement of hashtags.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns A {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
hashtag: r => {
|
||||
const mark = P.str('#');
|
||||
const hashTagChar = P.seq([
|
||||
|
|
@ -620,6 +829,14 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches single word emojis surrounded by the `:` mark.
|
||||
* The marks must be on the same line, and alphanumeric characters cannot appear both in front
|
||||
* of, and behind, the opening and closing marks respectively.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns A {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
emojiCode: r => {
|
||||
const side = P.notMatch(P.regexp(/[a-z0-9]/i));
|
||||
const mark = P.str(':');
|
||||
|
|
@ -632,6 +849,16 @@ export const language = P.createLanguage({
|
|||
], 2).map(name => M.EMOJI_CODE(name as string));
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches inline links, which are made up of the label and the url.
|
||||
* The label must be opened with either `?[` for silent links or `[` for normal links and closed with `]`.
|
||||
* The url must be opened with `(` and closed with `)`, and the contents of the url must follow either the
|
||||
* {@link language.url} or {@link language.urlAlt} rules.
|
||||
* The inline link must be on a single line, but has no other restrictions on placement.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns A {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
link: r => {
|
||||
const labelInline = new P.Parser((input, index, state) => {
|
||||
state.linkLabel = true;
|
||||
|
|
@ -659,6 +886,12 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches the standard format for urls.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns A {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
url: r => {
|
||||
const urlChar = P.regexp(/[.,a-z0-9_/:%#@$&?!~=+-]/i);
|
||||
const innerItem: P.Parser<any> = P.lazy(() => P.alt([
|
||||
|
|
@ -698,6 +931,12 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches an alternate form for urls, where it is opened with `<` and closed with `>`.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns A {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
urlAlt: r => {
|
||||
const open = P.str('<');
|
||||
const close = P.str('>');
|
||||
|
|
@ -718,6 +957,14 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A {@link P.Parser Parser} that matches single line text for a search query. The query must have either `[検索]` or
|
||||
* `[search]` at the end of the line.
|
||||
* The query and button must be on the same line and there can be nothing else on that line.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns A {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
search: r => {
|
||||
const button = P.alt([
|
||||
P.regexp(/\[(検索|search)\]/i),
|
||||
|
|
@ -742,5 +989,11 @@ export const language = P.createLanguage({
|
|||
});
|
||||
},
|
||||
|
||||
/**
|
||||
* A rule that simply collects characters.
|
||||
*
|
||||
* @param r The rules of SFM
|
||||
* @returns A {@link P.Parser Parser} for this rule
|
||||
*/
|
||||
text: r => P.char,
|
||||
});
|
||||
|
|
|
|||
Loading…
Reference in a new issue