Press n or j to go to the next uncovered block, b, p or k for the previous block.
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1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 326x 326x 1x 1x 1x 1x 1x 1x 440933x 440933x 440933x 441120x 30361x 30361x 410759x 441120x 175844x 175844x 441120x 440933x 440933x 440933x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 3089x 3089x 1x 1x 1x 1x 1x 1x 1215319x 1215319x 1215319x 1220131x 1220131x 139788x 139788x 139788x 1220131x 1215319x 1215319x 1x 1x 1x 1x 17x 17x 1x 1x 985x 985x 1x 1x 1x 1x 1x 1x 1x 919x 919x 1x 1x 1x 1x 1x 1x 707336x 707336x 707336x 718183x 718183x 22703x 22703x 718183x 707336x 707336x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 619x 619x 619x 619x 1x 1x 1x 1x 446671x 446671x 8x 446671x 451x 384x 451x 67x 67x 446663x 397830x 446212x 48382x 48382x 446671x 1x 1x 1x 1x 1x 1x 1x 1x 40x 40x 1x 1x 1x 1x 1x 1x 1x 1x 686x 686x 686x 1x 1x 1x 1x 1x 1x 14344x 14231x 14344x 113x 113x 14344x 1x 1x 1x 1x 1x 1x 476x 476x 1x 1x 1x 1x 1x 1x 1x 1110x 1110x 1x 1x 1x 1x 1x 1x 283577x 283577x 283577x 305540x 305540x 1007x 305540x 293843x 304533x 10690x 10690x 305540x 283577x 283577x 283577x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 2068x 2068x 1x 1x 1x 1x 1x 1x 66782x 66782x 66782x 74512x 74512x 74512x 74512x 66780x 66780x 66780x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 665x 665x 1x 1x 1x 1x 1x 1x 37656x 37656x 37656x 37656x 37656x 37656x 45020x 45020x 45020x 45020x 37622x 37622x 7364x 45020x 45020x 7364x 7364x 45020x 37656x 34x 34x 34x 37622x 37622x 37622x 1x 1x 1x 1x 6x 6x 1x 1x 1x 1x 1x 1x 1x 1x 1x 159x 159x 1x 1x 1x 1x 1x 1x 54764x 54764x 54764x 54764x 54764x 54764x 58693x 58693x 58693x 58693x 54764x 2095x 2095x 2095x 2695x 2223x 2223x 2223x 2695x 2095x 54764x 54764x 3929x 3929x 3929x 54764x 54764x 54764x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 324x 324x 324x 1x 1x 1x 1x 1x 1x 5378x 5378x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 53x 53x 53x 1x 1x 1x 1x 1x 1x 7432x 7432x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 6835x 6835x 6835x 1x 1x 1x 1x 1x 1x 1989567x 1989567x 1989567x 2011372x 2011372x 2011372x 2709728x 2709728x 1731871x 1731871x 1731871x 2709728x 2011335x 2011372x 279464x 279464x 279464x 279464x 279464x 2011372x 1989530x 1989530x 1989530x 1x 1x 1x 1x 6x 6x 12x 12x 6x 6x 1x 1x 846x 846x 1x 1x 1x 1x 1x 1x 1x 1x 1x 770x 770x 770x 770x 770x 770x 2088x 2088x 2088x 770x 770x 1x 1x 1x 1x 1x 1x 279880x 279880x 1x 1x 1x 1x 1x 1x 380x 380x 1x 1x 556x 556x 556x 556x 1001624x 1001624x 1001624x 465x 465x 1001624x 1001624x 1021886x 1021886x 1021886x 328065x 328065x 325987x 325987x 325987x 440833x 440833x 440833x 440833x 440833x 440833x 325987x 325987x 325987x 325987x 325987x 325987x 325987x 328065x 328065x 1021886x 1021886x 1001624x 1001624x 1001624x 556x 556x 556x 556x 556x 556x 556x 556x 94x 94x 556x 556x 556x 556x 7x 7x 556x 556x 9x 9x 556x 1x 1x 1x 1x 1x 12072x 12072x 12072x 1x 1x 1x 1x 1x 1x 26358x 26358x 26358x 26358x 192900x 192900x 12189x 12189x 12189x 12189x 12189x 12189x 496x 12189x 11693x 11693x 12189x 192900x 26358x 26358x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 34x 34x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 808x 808x 808x 1x 1x 1x 1x 1x 1x 76832x 76832x 76832x 222935x 222935x 222935x 76798x 76798x 76798x 1x 1x 1x 1x 1x 1x 25x 25x 25x 25x 25x 25x 2x 2x 23x 23x 23x 1x 1x 1x 1x 1x 1x 1x 956x 956x 956x 1x 1x 1x 1x 1x 1x 530286x 530286x 530286x 1773294x 1773294x 1773294x 1773294x 190197x 190197x 190197x 1773294x 530286x 530286x 530286x 1x 1x 1x 1x 1x 1x 22x 5x 5x 17x 17x 22x 22x 5x 5x 22x 2x 2x 10x 10x 10x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 63147x 63147x 63147x 63147x 63147x 63147x 63147x 63147x 63147x 63147x 63147x 63147x 63147x 63147x 63147x 63147x 43574x 25432x 25432x 43574x 63147x 1x 1x 1x 37714x 37714x 37714x 1x 1x 461015x 461015x 1x 1x 1x 1x 1x 1771x 1771x 770x 1771x 1001x 1001x 1771x 1x 326x 326x 326x 1x 919x 919x 919x 1x 1x 1x 1x 1x 30091x 30091x 30091x 8552x 1140x 1140x 8552x 30091x 7506x 7506x 7506x 257x 257x 257x 7506x 21539x 14033x 14033x 30091x 5688x 5688x 5688x 5688x 5688x 808x 808x 808x 808x 808x 956x 956x 956x 956x 956x 2068x 2068x 2068x 1110x 1110x 1110x 379x 379x 379x 379x 379x 341x 341x 341x 106x 106x 106x 324x 324x 324x 53x 53x 53x 619x 619x 619x 686x 686x 686x 3x 3x 3x 2x 2x 2x | import * as Tokens from "../1_lexer/tokens";
import {AbstractToken as Tokens_Token} from "../1_lexer/tokens/abstract_token";
import {Position} from "../../position";
import {TokenNode, ExpressionNode, TokenNodeRegex} from "../nodes";
import {Version} from "../../version";
import {IStatementRunnable} from "./statement_runnable";
import {Result} from "./result";
class Regex implements IStatementRunnable {
private readonly regexp: RegExp;
public constructor(r: RegExp) {
this.regexp = r;
}
public listKeywords(): string[] {
return [];
}
public getUsing(): string[] {
return [];
}
public run(r: Result[]): Result[] {
const result: Result[] = [];
for (const input of r) {
if (input.remainingLength() === 0) {
continue;
}
const token = input.peek();
if (this.regexp.test(token.getStr()) === true) {
result.push(input.shift(new TokenNodeRegex(token)));
}
}
return result;
}
public railroad() {
return "Railroad.Terminal(\"" + this.regexp.source.replace(/\\/g, "\\\\") + "\")";
}
public toStr() {
return this.regexp.toString();
}
public first() {
return [""];
}
}
class Word implements IStatementRunnable {
private readonly s: string;
public constructor(s: string) {
this.s = s.toUpperCase();
}
public listKeywords(): string[] {
return [this.s];
}
public getUsing(): string[] {
return [];
}
public run(r: Result[]): Result[] {
const result: Result[] = [];
for (const input of r) {
if (input.remainingLength() !== 0
&& input.peek().getStr().toUpperCase() === this.s) {
// console.log("match, " + this.s + result.length);
result.push(input.shift(new TokenNode(input.peek())));
}
}
return result;
}
public railroad() {
return "Railroad.Terminal('\"" + this.s + "\"')";
}
public toStr() {
return "\"" + this.s + "\"";
}
public first() {
return [this.s];
}
}
class Token implements IStatementRunnable {
private readonly name: string;
public constructor(s: string) {
this.name = s.toUpperCase();
}
public listKeywords(): string[] {
return [];
}
public getUsing(): string[] {
return [];
}
public run(r: Result[]): Result[] {
const result: Result[] = [];
for (const input of r) {
if (input.remainingLength() !== 0
&& input.peek().constructor.name.toUpperCase() === this.name) {
result.push(input.shift(new TokenNode(input.peek())));
}
}
return result;
}
public railroad() {
let text = this.name;
const toke: any = Tokens;
for (const token in Tokens) {
if (token.toUpperCase() === this.name && toke[token].railroad) {
text = toke[token].railroad();
break;
}
}
return "Railroad.Terminal('!\"" + text + "\"')";
}
public toStr() {
return "Token \"" + this.name + "\"";
}
public first() {
return [""];
}
}
class Vers implements IStatementRunnable {
private readonly version: Version;
private readonly or: Version | undefined;
private readonly runnable: IStatementRunnable;
public constructor(version: Version, runnable: IStatementRunnable, or?: Version) {
this.version = version;
this.runnable = runnable;
this.or = or;
}
public listKeywords(): string[] {
return this.runnable.listKeywords();
}
public run(r: Result[]): Result[] {
const targetVersion = Combi.getVersion();
if (this.or && targetVersion === this.or) {
return this.runnable.run(r);
} else if (targetVersion === Version.OpenABAP) {
if (this.version > Version.v702) {
return [];
} else {
return this.runnable.run(r);
}
} else if (targetVersion >= this.version || targetVersion === Version.Cloud) {
return this.runnable.run(r);
} else {
return [];
}
}
public getUsing(): string[] {
return this.runnable.getUsing();
}
public railroad() {
let text: string = this.version;
if (this.or) {
text += " or " + this.or;
}
return "Railroad.Sequence(Railroad.Comment(\"" +
text +
"\", {}), " +
this.runnable.railroad() +
")";
}
public toStr() {
return "Version(" + this.runnable.toStr() + ")";
}
public first() {
return this.runnable.first();
}
}
class VersNot implements IStatementRunnable {
private readonly version: Version;
private readonly runnable: IStatementRunnable;
public constructor(version: Version, runnable: IStatementRunnable) {
this.version = version;
this.runnable = runnable;
}
public listKeywords(): string[] {
return this.runnable.listKeywords();
}
public getUsing(): string[] {
return this.runnable.getUsing();
}
public run(r: Result[]): Result[] {
if (Combi.getVersion() !== this.version) {
return this.runnable.run(r);
} else {
return [];
}
}
public railroad() {
return "Railroad.Sequence(Railroad.Comment(\"not " +
this.version +
"\", {}), " +
this.runnable.railroad() +
")";
}
public toStr() {
return "VersionNot(" + this.runnable.toStr() + ")";
}
public first() {
return this.runnable.first();
}
}
class OptionalPriority implements IStatementRunnable {
private readonly optional: IStatementRunnable;
public constructor(optional: IStatementRunnable) {
this.optional = optional;
}
public listKeywords(): string[] {
return this.optional.listKeywords();
}
public getUsing(): string[] {
return this.optional.getUsing();
}
public run(r: Result[]): Result[] {
const result: Result[] = [];
for (const input of r) {
const res = this.optional.run([input]);
if (res.length > 1) {
result.push(...res);
} else if (res.length === 0) {
result.push(input);
} else if (res[0].remainingLength() < input.remainingLength()) {
result.push(...res);
} else {
result.push(input);
}
}
return result;
}
public railroad() {
return "Railroad.Optional(" + this.optional.railroad() + ")";
}
public toStr() {
return "opt(" + this.optional.toStr() + ")";
}
public first() {
return [""];
}
}
class Optional implements IStatementRunnable {
private readonly optional: IStatementRunnable;
public constructor(optional: IStatementRunnable) {
this.optional = optional;
}
public listKeywords(): string[] {
return this.optional.listKeywords();
}
public getUsing(): string[] {
return this.optional.getUsing();
}
public run(r: Result[]): Result[] {
const result: Result[] = [];
for (const input of r) {
result.push(input);
const res = this.optional.run([input]);
result.push(...res);
}
return result;
}
public railroad() {
return "Railroad.Optional(" + this.optional.railroad() + ")";
}
public toStr() {
return "opt(" + this.optional.toStr() + ")";
}
public first() {
return [""];
}
}
class Star implements IStatementRunnable {
private readonly sta: IStatementRunnable;
public constructor(sta: IStatementRunnable) {
this.sta = sta;
}
public listKeywords(): string[] {
return this.sta.listKeywords();
}
public getUsing(): string[] {
return this.sta.getUsing();
}
public run(r: Result[]): Result[] {
let result = r;
try {
let res = r;
let input: Result[] = [];
for (;;) {
input = res;
res = this.sta.run(input);
if (res.length === 0) {
break;
}
if (res.length > 1000) {
// avoid stack overflow
result = result.concat(res);
} else {
result.push(...res);
}
}
} catch (err) {
if (err instanceof FailStarError) {
return result;
}
throw err;
}
// console.dir(result);
return result;
}
public railroad() {
return "Railroad.ZeroOrMore(" + this.sta.railroad() + ")";
}
public toStr() {
return "star(" + this.sta.toStr() + ")";
}
public first() {
return [""];
}
}
class StarPriority implements IStatementRunnable {
private readonly sta: IStatementRunnable;
public constructor(sta: IStatementRunnable) {
this.sta = sta;
}
public listKeywords(): string[] {
return this.sta.listKeywords();
}
public getUsing(): string[] {
return this.sta.getUsing();
}
public run(r: Result[]): Result[] {
let result: Result[] = r;
let res = r;
// let input: Result[] = [];
let prev: Result[] | undefined;
for (;;) {
// input = res;
res = this.sta.run(res);
if (res.length === 0) {
if (prev !== undefined) {
// console.log("star length: " + prev.length);
let best = Number.MAX_SAFE_INTEGER;
for (const p of prev) {
if (p.remainingLength() < best) {
result = [p];
best = p.remainingLength();
}
}
}
break;
}
prev = res;
}
return result;
}
public railroad() {
return "Railroad.ZeroOrMore(" + this.sta.railroad() + ")";
}
public toStr() {
return "star(" + this.sta.toStr() + ")";
}
public first() {
return [""];
}
}
class Plus implements IStatementRunnable {
private readonly plu: IStatementRunnable;
private readonly sub: Sequence;
public constructor(plu: IStatementRunnable) {
this.plu = plu;
this.sub = new Sequence([this.plu, new Star(this.plu)]);
}
public listKeywords(): string[] {
return this.plu.listKeywords();
}
public getUsing(): string[] {
return this.plu.getUsing();
}
public run(r: Result[]): Result[] {
return this.sub.run(r);
}
public railroad() {
return "Railroad.OneOrMore(" + this.plu.railroad() + ")";
}
public toStr() {
return "plus(" + this.plu.toStr() + ")";
}
public first() {
return this.plu.first();
}
}
class PlusPriority implements IStatementRunnable {
private readonly plu: IStatementRunnable;
private readonly sub: Sequence;
public constructor(plu: IStatementRunnable) {
this.plu = plu;
this.sub = new Sequence([this.plu, new StarPriority(this.plu)]);
}
public listKeywords(): string[] {
return this.plu.listKeywords();
}
public getUsing(): string[] {
return this.plu.getUsing();
}
public run(r: Result[]): Result[] {
return this.sub.run(r);
}
public railroad() {
return "Railroad.OneOrMore(" + this.plu.railroad() + ")";
}
public toStr() {
return "plus(" + this.plu.toStr() + ")";
}
public first() {
return this.plu.first();
}
}
class Sequence implements IStatementRunnable {
private readonly list: IStatementRunnable[];
public constructor(list: IStatementRunnable[]) {
if (list.length < 2) {
throw new Error("Sequence, length error");
}
this.list = list;
}
public listKeywords(): string[] {
const ret: string[] = [];
for (const i of this.list) {
ret.push(...i.listKeywords());
}
return ret;
}
public getUsing(): string[] {
return this.list.reduce((a, c) => { return a.concat(c.getUsing()); }, [] as string[]);
}
public run(r: Result[]): Result[] {
let result: Result[] = [];
for (const input of r) {
let temp = [input];
let match = true;
for (const sequence of this.list) {
temp = sequence.run(temp);
if (temp.length === 0) {
match = false;
break;
}
}
if (match === true) {
if (temp.length > 1000) {
// avoid stack overflow
result = result.concat(temp);
} else {
result.push(...temp);
}
}
}
return result;
}
public railroad() {
const children = this.list.map((e) => { return e.railroad(); });
return "Railroad.Sequence(" + children.join() + ")";
}
public toStr() {
let ret = "";
for (const i of this.list) {
ret = ret + i.toStr() + ",";
}
return "seq(" + ret + ")";
}
public first() {
return this.list[0].first();
}
}
class WordSequence implements IStatementRunnable {
private readonly stri: string;
private readonly words: IStatementRunnable[] = [];
private readonly seq: Sequence;
public constructor(stri: string) {
this.stri = stri;
const foo = this.stri.replace(/-/g, " - ");
const split = foo.split(" ");
for (const st of split) {
// todo, use Dash token
this.words.push(new Word(st));
}
this.seq = new Sequence(this.words);
}
public listKeywords(): string[] {
return [this.stri.toString()];
}
public getUsing(): string[] {
return [];
}
public run(r: Result[]): Result[] {
return this.seq.run(r);
}
public railroad() {
return "Railroad.Terminal('\"" + this.stri + "\"')";
}
public toStr() {
return "str(" + this.stri + ")";
}
public first() {
return this.words[0].first();
}
}
export abstract class Expression implements IStatementRunnable {
private runnable: IStatementRunnable | undefined = undefined;
public run(r: Result[]): Result[] {
const results: Result[] = [];
if (this.runnable === undefined) {
this.runnable = this.getRunnable();
}
for (const input of r) {
const temp = this.runnable.run([input]);
for (const t of temp) {
let consumed = input.remainingLength() - t.remainingLength();
if (consumed > 0) {
const originalLength = t.getNodes().length;
const children: (ExpressionNode | TokenNode)[] = [];
while (consumed > 0) {
const sub = t.popNode();
if (sub) {
children.push(sub);
consumed = consumed - sub.countTokens();
}
}
const re = new ExpressionNode(this);
re.setChildren(children.reverse());
const n = t.getNodes().slice(0, originalLength - consumed);
n.push(re);
t.setNodes(n);
}
results.push(t);
}
}
// console.dir(results);
return results;
}
public abstract getRunnable(): IStatementRunnable;
public listKeywords(): string[] {
// do not recurse, all Expressions are evaluated only on first level
return [];
}
public getUsing(): string[] {
return ["expression/" + this.getName()];
}
public getName(): string {
return this.constructor.name;
}
public railroad() {
return "Railroad.NonTerminal('" + this.getName() + "', {href: '#/expression/" + this.getName() + "'})";
}
public toStr() {
return "expression(" + this.getName() + ")";
}
public first() {
return this.getRunnable().first();
}
}
class Permutation implements IStatementRunnable {
private readonly list: IStatementRunnable[];
public constructor(list: IStatementRunnable[]) {
if (list.length < 2) {
throw new Error("Permutation, length error, got " + list.length);
}
this.list = list;
}
public listKeywords(): string[] {
const ret: string[] = [];
for (const i of this.list) {
ret.push(...i.listKeywords());
}
return ret;
}
public getUsing() {
return this.list.reduce((a, c) => { return a.concat(c.getUsing()); }, [] as string[]);
}
public run(r: Result[]): Result[] {
const result: Result[] = [];
const copy = this.list.slice();
for (let index = 0; index < this.list.length; index++) {
const temp = this.list[index].run(r);
if (temp.length !== 0) {
// match
result.push(...temp);
const left = copy;
left.splice(index, 1);
if (left.length === 1) {
result.push(...left[0].run(temp));
} else {
result.push(...new Permutation(left).run(temp));
}
}
}
return result;
}
public railroad() {
const children = this.list.map((e) => { return e.railroad(); });
return "Railroad.MultipleChoice(0, 'any'," + children.join() + ")";
}
public toStr() {
const children = this.list.map((e) => { return e.toStr(); });
return "per(" + children.join() + ")";
}
public first() {
return [""];
}
}
class FailCombinatorError extends Error {
}
class FailStarError extends Error {
}
class FailCombinator implements IStatementRunnable {
public listKeywords(): string[] {
return [];
}
public getUsing() {
return [];
}
public run(_r: Result[]): Result[] {
throw new FailCombinatorError();
}
public railroad() {
return "Railroad.Terminal('!FailCombinator')";
}
public toStr() {
return "fail()";
}
public first() {
return [];
}
}
// Note that Plus is implemented with Star
class FailStar implements IStatementRunnable {
public listKeywords(): string[] {
return [];
}
public getUsing() {
return [];
}
public run(_r: Result[]): Result[] {
throw new FailStarError();
}
public railroad() {
return "Railroad.Terminal('!FailStar')";
}
public toStr() {
return "fail()";
}
public first() {
return [];
}
}
class Alternative implements IStatementRunnable {
private readonly list: IStatementRunnable[];
public constructor(list: IStatementRunnable[]) {
if (list.length < 2) {
throw new Error("Alternative, length error");
}
this.list = list;
}
public listKeywords(): string[] {
const ret: string[] = [];
for (const i of this.list) {
ret.push(...i.listKeywords());
}
return ret;
}
public getUsing() {
return this.list.reduce((a, c) => { return a.concat(c.getUsing()); }, [] as string[]);
}
public run(r: Result[]): Result[] {
const result: Result[] = [];
for (const sequ of this.list) {
const temp = sequ.run(r);
result.push(...temp);
}
return result;
}
public railroad() {
const children = this.list.map((e) => { return e.railroad(); });
return "Railroad.Choice(0, " + children.join() + ")";
}
public toStr() {
let ret = "";
for (const i of this.list) {
ret = ret + i.toStr() + ",";
}
return "alt(" + ret + ")";
}
public first() {
if (this.list.length !== 2) {
return [""];
}
const f1 = this.list[0].first();
const f2 = this.list[1].first();
if (f1.length === 1 && f1[0] === "") {
return f1;
}
if (f2.length === 1 && f2[0] === "") {
return f2;
}
if (f1.length === 1 && f2.length === 1 && f1[0] === f2[0]) {
return f1;
}
f1.push(...f2);
return f1;
}
}
// prioritized alternative, skip others if match found
class AlternativePriority implements IStatementRunnable {
private readonly list: IStatementRunnable[];
public constructor(list: IStatementRunnable[]) {
if (list.length < 2) {
throw new Error("Alternative, length error");
}
this.list = list;
}
public listKeywords(): string[] {
const ret: string[] = [];
for (const i of this.list) {
ret.push(...i.listKeywords());
}
return ret;
}
public getUsing() {
return this.list.reduce((a, c) => { return a.concat(c.getUsing()); }, [] as string[]);
}
public run(r: Result[]): Result[] {
const result: Result[] = [];
for (const sequ of this.list) {
// console.log(seq.toStr());
const temp = sequ.run(r);
if (temp.length > 0) {
result.push(...temp);
break;
}
}
return result;
}
public railroad() {
const children = this.list.map((e) => { return e.railroad(); });
return "Railroad.Choice(0, " + children.join() + ")";
}
public toStr() {
let ret = "";
for (const i of this.list) {
ret = ret + i.toStr() + ",";
}
return "alt(" + ret + ")";
}
public first() {
if (this.list.length !== 2) {
return [""];
}
const f1 = this.list[0].first();
const f2 = this.list[1].first();
if (f1.length === 1 && f1[0] === "") {
return f1;
}
if (f2.length === 1 && f2[0] === "") {
return f2;
}
if (f1.length === 1 && f2.length === 1 && f1[0] === f2[0]) {
return f1;
}
f1.push(...f2);
return f1;
}
}
export class Combi {
// todo, change this class to be instantiated, constructor(runnable) ?
private static ver: Version;
public static railroad(runnable: IStatementRunnable, complex = false): string {
// todo, move method to graph.js?
let type = "Railroad.Diagram(";
if (complex === true) {
type = "Railroad.ComplexDiagram(";
}
const result = "Railroad.Diagram.INTERNAL_ALIGNMENT = 'left';\n" +
type +
runnable.railroad() +
").toString();";
return result;
}
public static listKeywords(runnable: IStatementRunnable): string[] {
// todo, move these walkers of the syntax tree to some abstraction?
let res = runnable.listKeywords();
// remove duplicates
res = res.filter((x, i, a) => { return a.indexOf(x) === i; });
return res;
}
// assumption: no pragmas supplied in tokens input
public static run(
runnable: IStatementRunnable,
tokens: readonly Tokens_Token[], version: Version): (ExpressionNode | TokenNode)[] | undefined {
this.ver = version;
const input = new Result(tokens, 0);
try {
const result = runnable.run([input]);
/*
console.log("res: " + result.length);
for (const res of result) {
console.dir(res.getNodes().map(n => n.get().constructor.name));
console.dir(res.getNodes().map(n => n.concatTokens()));
}
*/
for (const res of result) {
if (res.remainingLength() === 0) {
return res.getNodes();
}
}
} catch (err) {
if (err instanceof FailCombinatorError) {
return undefined;
}
throw err;
}
return undefined;
}
public static getVersion(): Version {
return this.ver;
}
}
// -----------------------------------------------------------------------------
export function str(s: string): IStatementRunnable {
if (s.indexOf(" ") > 0 || s.indexOf("-") > 0) {
return new WordSequence(s);
} else {
return new Word(s);
}
}
export function regex(r: RegExp): IStatementRunnable {
return new Regex(r);
}
export function tok(t: new (p: Position, s: string) => any): IStatementRunnable {
return new Token(t.name);
}
const expressionSingletons: {[index: string]: Expression} = {};
const stringSingletons: {[index: string]: IStatementRunnable} = {};
type InputType = (new () => Expression) | string | IStatementRunnable;
function map(s: InputType): IStatementRunnable {
const type = typeof s;
if (type === "string") {
if (stringSingletons[s as string] === undefined) {
stringSingletons[s as string] = str(s as string);
}
return stringSingletons[s as string];
} else if (type === "function") {
// @ts-ignore
const name = s.name;
if (expressionSingletons[name] === undefined) {
// @ts-ignore
expressionSingletons[name] = new s();
}
return expressionSingletons[name];
} else {
return s as IStatementRunnable;
}
}
export function seq(first: InputType, second: InputType, ...rest: InputType[]): IStatementRunnable {
const list = [map(first), map(second)];
list.push(...rest.map(map));
return new Sequence(list);
}
export function alt(first: InputType, second: InputType, ...rest: InputType[]): IStatementRunnable {
const list = [map(first), map(second)];
list.push(...rest.map(map));
return new Alternative(list);
}
export function altPrio(first: InputType, second: InputType, ...rest: InputType[]): IStatementRunnable {
const list = [map(first), map(second)];
list.push(...rest.map(map));
return new AlternativePriority(list);
}
export function opt(first: InputType): IStatementRunnable {
return new Optional(map(first));
}
export function optPrio(first: InputType): IStatementRunnable {
return new OptionalPriority(map(first));
}
export function per(first: InputType, second: InputType, ...rest: InputType[]): IStatementRunnable {
const list = [map(first), map(second)];
list.push(...rest.map(map));
return new Permutation(list);
}
export function star(first: InputType): IStatementRunnable {
return new Star(map(first));
}
export function starPrio(first: InputType): IStatementRunnable {
return new StarPriority(map(first));
}
export function plus(first: InputType): IStatementRunnable {
return new Plus(map(first));
}
export function plusPrio(first: InputType): IStatementRunnable {
return new PlusPriority(map(first));
}
export function ver(version: Version, first: InputType, or?: Version): IStatementRunnable {
return new Vers(version, map(first), or);
}
export function verNot(version: Version, first: InputType): IStatementRunnable {
return new VersNot(version, map(first));
}
export function failCombinator(): IStatementRunnable {
return new FailCombinator();
}
export function failStar(): IStatementRunnable {
return new FailStar();
} |