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 323x 323x 1x 1x 1x 1x 1x 1x 530110x 530110x 530110x 530316x 30077x 30077x 500239x 530316x 228832x 228832x 530316x 530110x 530110x 530110x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 2883x 2883x 1x 1x 1x 1x 1x 1x 2737000x 2737000x 2737000x 2741698x 2741698x 175618x 175618x 175618x 2741698x 2737000x 2737000x 1x 1x 1x 1x 17x 17x 1x 1x 963x 963x 1x 1x 1x 1x 1x 1x 1x 893x 893x 1x 1x 1x 1x 1x 1x 692028x 692028x 692028x 702762x 702762x 22301x 22301x 702762x 692028x 692028x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 590x 590x 590x 590x 1x 1x 1x 1x 414588x 414588x 8x 414588x 435x 384x 435x 51x 51x 414580x 367228x 414145x 46917x 46917x 414588x 1x 1x 1x 1x 1x 1x 1x 1x 40x 40x 1x 1x 1x 1x 1x 1x 1x 1x 658x 658x 658x 1x 1x 1x 1x 1x 1x 13834x 13725x 13834x 109x 109x 13834x 1x 1x 1x 1x 1x 1x 456x 456x 1x 1x 1x 1x 1x 1x 1x 1038x 1038x 1x 1x 1x 1x 1x 1x 294968x 294968x 294968x 309652x 309652x 952x 309652x 281784x 308700x 26916x 26916x 309652x 294968x 294968x 294968x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1902x 1902x 1x 1x 1x 1x 1x 1x 159730x 159730x 159730x 167417x 167417x 167417x 167417x 159728x 159728x 159728x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 578x 578x 1x 1x 1x 1x 1x 1x 36714x 36714x 36714x 36714x 36714x 36714x 43838x 43838x 43838x 43838x 36680x 36680x 7124x 43838x 43838x 7124x 7124x 43838x 36714x 34x 34x 34x 36680x 36680x 36680x 1x 1x 1x 1x 6x 6x 1x 1x 1x 1x 1x 1x 1x 1x 1x 149x 149x 1x 1x 1x 1x 1x 1x 54164x 54164x 54164x 54164x 54164x 54164x 58028x 58028x 58028x 58028x 54164x 1989x 1989x 1989x 11314x 2098x 2098x 2098x 11314x 1989x 54164x 54164x 3864x 3864x 3864x 54164x 54164x 54164x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 290x 290x 290x 1x 1x 1x 1x 1x 1x 7297x 7297x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 46x 46x 46x 1x 1x 1x 1x 1x 1x 6685x 6685x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 6502x 6502x 6502x 1x 1x 1x 1x 1x 1x 3444846x 3444846x 3444846x 3483316x 3483316x 3483316x 4339713x 4339713x 3110366x 3110366x 3110366x 4339713x 3483279x 3483316x 372913x 372913x 372913x 372913x 372913x 3483316x 3444809x 3444809x 3444809x 1x 1x 1x 1x 6x 6x 12x 12x 6x 6x 1x 1x 830x 830x 1x 1x 1x 1x 1x 1x 1x 1x 1x 718x 718x 718x 718x 718x 718x 1948x 1948x 1948x 718x 718x 1x 1x 1x 1x 1x 1x 277044x 277044x 1x 1x 1x 1x 1x 1x 375x 375x 1x 1x 516x 516x 516x 516x 1142646x 1142646x 1142646x 426x 426x 1142646x 1142646x 1162469x 1162469x 1162469x 381580x 381580x 379515x 379515x 379515x 498269x 498269x 498269x 498269x 498269x 498269x 379515x 379515x 379515x 379515x 379515x 379515x 379515x 381580x 381580x 1162469x 1162469x 1142646x 1142646x 1142646x 516x 516x 516x 516x 516x 516x 516x 516x 93x 93x 516x 516x 516x 516x 7x 7x 516x 516x 9x 9x 516x 1x 1x 1x 1x 1x 11755x 11755x 11755x 1x 1x 1x 1x 1x 1x 25837x 25837x 25837x 25837x 187618x 187618x 11871x 11871x 11871x 11871x 11871x 11871x 484x 11871x 11387x 11387x 11871x 187618x 25837x 25837x 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 782x 782x 782x 1x 1x 1x 1x 1x 1x 147647x 147647x 147647x 476312x 476312x 476312x 147613x 147613x 147613x 1x 1x 1x 1x 1x 1x 25x 25x 25x 25x 25x 25x 2x 2x 23x 23x 23x 1x 1x 1x 1x 1x 1x 1x 929x 929x 929x 1x 1x 1x 1x 1x 1x 590543x 590543x 590543x 3084599x 3084599x 3084599x 3084599x 205886x 205886x 205886x 3084599x 590543x 590543x 590543x 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 62057x 62057x 62057x 62057x 62057x 62057x 62057x 62057x 62057x 62057x 62057x 62057x 62057x 62057x 62057x 62057x 42760x 25048x 25048x 42760x 62057x 1x 1x 1x 37008x 37008x 37008x 1x 1x 428422x 428422x 1x 1x 1x 1x 1x 1653x 1653x 718x 1653x 935x 935x 1653x 1x 323x 323x 323x 1x 893x 893x 893x 1x 1x 1x 1x 1x 28431x 28431x 28431x 8042x 1108x 1108x 8042x 28431x 7166x 7166x 7166x 257x 257x 257x 7166x 20389x 13223x 13223x 28431x 5448x 5448x 5448x 5448x 5448x 782x 782x 782x 782x 782x 929x 929x 929x 929x 929x 1902x 1902x 1902x 1038x 1038x 1038x 368x 368x 368x 368x 368x 288x 288x 288x 103x 103x 103x 290x 290x 290x 46x 46x 46x 590x 590x 590x 658x 658x 658x 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();
} |