X-Git-Url: https://git.kianting.info/?a=blobdiff_plain;f=src%2Findex.js;fp=src%2Findex.js;h=e18ebd5a1c4ff82a83542e067c0c39c7c233d41c;hb=6f2e788329da7702ea96dc28ae04499917ec8152;hp=fb887701725ab7261a7bda6b47b78fa15babc3a5;hpb=cda463d89022d09a5273b59bcd3e776f1127697a;p=uann diff --git a/src/index.js b/src/index.js index fb88770..e18ebd5 100644 --- a/src/index.js +++ b/src/index.js @@ -23,26 +23,32 @@ var __importStar = (this && this.__importStar) || function (mod) { return result; }; Object.defineProperty(exports, "__esModule", { value: true }); -exports.match1token = void 0; +exports.m1TType = void 0; var fs = require('fs'); +const node_process_1 = require("node:process"); const tk = __importStar(require("./tokenize.js")); -let b = tk.tokenize("2+2"); +const util = __importStar(require("util")); /** * @description - * it returns a function which test if the first char of the `remained` part of - * the argument of the function is `c`, if it's true, update the `MatchedPair` wrapped + * match one token type. + * + * it returns a function which test if the type of first token of the `remained` part of + * the argument of the function is `typ` , if it's true, update the `TokenMatcheePair` wrapped * in `Some`. Otherwise, it returns `None`. - * * @param t : the char to be test. - * @returns the updated `MatchedPair` wrapped in `Some(x)` or `None`. + * * @param typ : the type to be test. + * @returns the updated `TokenMatcheePair` wrapped in `Some(x)` or `None`. */ -function match1token(t) { +function m1TType(typ) { return (m) => { if (m.remained.length == 0) { return { _tag: "None" }; } - const tokenToBeMatched = m.remained[0]; - if (tokenToBeMatched === t) { - m.matched.push(tokenToBeMatched); + /** + * token to be matched + * */ + const ttbm = m.remained[0]; + if (ttbm.type == typ) { + m.matched.push(ttbm); return { _tag: "Some", value: { matched: m.matched, @@ -55,7 +61,59 @@ function match1token(t) { } }; } -exports.match1token = match1token; +exports.m1TType = m1TType; ; -let c = tk.toSome(b); -console.log(thenDo(c, match1token(tk.tokenize("+")[0]))); +let toSome = tk.toSome; +let thenDo = tk.thenDo; +let orDo = tk.orDo; +node_process_1.argv.forEach((val, index) => { + console.log(`${index}=${val}`); +}); +let commandInput = node_process_1.argv[2]; +let commandInputTokenized = tk.tokenize(commandInput); +console.log(commandInputTokenized); +/** + * matchee pair of commandInputTokenized + */ +let commandTPair = { matched: [], + remained: commandInputTokenized }; +let tInt = m1TType(tk.TokenType.INT); +let tFlo = m1TType(tk.TokenType.FLO); +let tStr = m1TType(tk.TokenType.STR); +function tBool(x) { + let text = x.remained[0].text; + if (text == "true" || text == "false") { + return thenDo(toSome(x), m1TType(tk.TokenType.ID)); + } + else { + return { _tag: "None" }; + } +} +/** + * define the right hand side of a grammar + * eg. `LHS ::= a + b` + * @param process the right hand side processing : eg. `a + b` in `LHS` + * @param arrange define the order (0 starting) of the elements of the result. + * ast. : eg. `a + c` is `1 0 2` `(+ a c)` + * @returns the processed ast. + */ +function gramRHS(process, arrange) { + return (m) => { + let result = process(m); + console.log(`result ${result}`); + if (result._tag == "None") { + return result; + } + else { + let matched = result.value.matched; + let return_array = Array(arrange.length); + arrange.forEach((val, index) => { + return_array[arrange[index]] = matched[index]; + }); + return return_array; + } + }; +} +var constParser = gramRHS((x) => { return thenDo(toSome(x), orDo(orDo(orDo(tInt, tFlo), tStr), tBool)); }, [0]); +let tree = constParser(commandTPair); +console.log(util.inspect(tree, { showHidden: true, depth: null }));