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It's parsing!

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This commit is contained in:
Patrick Demian 2020-10-28 22:57:34 -04:00
parent bacb104d89
commit bddc5d4f3b
2 changed files with 14 additions and 15 deletions
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16
src/parser.ts
View File

@ -14,8 +14,10 @@ export class Human2RegexParser extends CstParser {
public nodes: { [key: string]: (idxInCallingRule?: number, ...args: unknown[]) => CstNode } = {};
public parse : (idxInCallingRule?: number, ...args: unknown[]) => CstNode;
constructor(private options: Human2RegexParserOptions = new Human2RegexParserOptions()) {
super(T.AllTokens, { recoveryEnabled: true, maxLookahead: 2});
super(T.AllTokens, { recoveryEnabled: false, maxLookahead: 2});
if (Human2RegexParser.already_init) {
throw new Error("Only 1 instance of Human2RegexParser allowed");
@ -89,6 +91,7 @@ export class Human2RegexParser extends CstParser {
$.AT_LEAST_ONE_SEP({
SEP: T.Or,
DEF: () => {
$.OPTION3(() => $.CONSUME(T.A));
$.OR([
{ ALT: () => $.CONSUME(T.Anything) },
{ ALT: () => $.CONSUME(T.StringLiteral) },
@ -123,6 +126,7 @@ export class Human2RegexParser extends CstParser {
$.OPTION3(() => $.CONSUME2(T.Optional));
$.SUBRULE2(this.nodes.MatchSubStatement);
});
$.CONSUME(T.EndOfLine);
});
// using global matching
@ -141,6 +145,7 @@ export class Human2RegexParser extends CstParser {
$.OPTION(() => $.CONSUME(T.Matching));
}
});
$.CONSUME(T.EndOfLine);
});
this.nodes.GroupStatement = $.RULE("GroupStatement", () => {
@ -153,6 +158,7 @@ export class Human2RegexParser extends CstParser {
$.CONSUME(T.Called);
$.CONSUME(T.StringLiteral);
});
$.CONSUME2(T.EndOfLine);
$.CONSUME(T.Indent);
$.AT_LEAST_ONE(this.nodes.Statement);
$.CONSUME(T.Outdent);
@ -162,6 +168,7 @@ export class Human2RegexParser extends CstParser {
$.OPTION3(() => $.CONSUME(T.Optional));
$.CONSUME(T.Repeat);
$.OPTION(() => $.SUBRULE(this.nodes.CountSubStatement));
$.CONSUME3(T.EndOfLine);
$.CONSUME(T.Indent);
$.AT_LEAST_ONE(this.nodes.Statement);
$.CONSUME(T.Outdent);
@ -173,15 +180,16 @@ export class Human2RegexParser extends CstParser {
{ ALT: () => $.SUBRULE(this.nodes.GroupStatement) },
{ ALT: () => $.SUBRULE(this.nodes.RepeatStatement) }
]);
$.CONSUME(T.EndOfLine);
});
this.nodes.Regex = $.RULE("Regex", () => {
$.OPTION(() => $.SUBRULE(this.nodes.UsingStatement));
$.MANY(() => $.SUBRULE(this.nodes.Statement) );
$.MANY(() => $.SUBRULE(this.nodes.UsingStatement));
$.MANY2(() => $.SUBRULE(this.nodes.Statement) );
});
this.performSelfAnalysis();
this.parse = this.nodes.Regex;
}
//public set_options(options: Human2RegexParserOptions) : void {

11
src/script.ts
View File

@ -56,22 +56,13 @@ create an optional group
match 0+ any thing
`);
for(const r of result.tokens) {
console.log(`[${r.tokenType.name}]: ${r.image}`);
}
console.log(result.errors);
parser.input = result.tokens;
const regex = parser.nodes.regex;
const regex = parser.parse();
console.log(regex);
console.log(parser.errors);
//interpreter.visit(regex);
//parser.getBaseCstVisitorConstructor();