filter parse - ts

This commit is contained in:
Jan Prochazka 2020-03-12 09:29:07 +01:00
parent 8f6b211b1b
commit e2c5c8163c
8 changed files with 102 additions and 1 deletions

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@ -9,9 +9,10 @@
"start:web": "yarn workspace @dbgate/web start",
"start:sqltree": "yarn workspace @dbgate/sqltree start",
"start:datalib": "yarn workspace @dbgate/datalib start",
"start:filterparser": "yarn workspace @dbgate/filterparser start",
"start": "concurrently --kill-others-on-fail \"yarn start:api\" \"yarn start:web\"",
"lib": "concurrently --kill-others-on-fail \"yarn start:sqltree\" \"yarn start:datalib\"",
"lib": "concurrently --kill-others-on-fail \"yarn start:sqltree\" \"yarn start:datalib\" \"yarn start:filterparser\"",
"ts:api": "yarn workspace @dbgate/api ts",
"ts:web": "yarn workspace @dbgate/web ts",

1
packages/filterparser/.gitignore vendored Normal file
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@ -0,0 +1 @@
lib

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@ -0,0 +1,25 @@
{
"version": "0.1.0",
"name": "@dbgate/filterparser",
"main": "lib/index.js",
"typings": "lib/index.d.ts",
"scripts": {
"prepare": "yarn build",
"build": "tsc",
"start": "tsc --watch",
"test": "jest"
},
"files": [
"lib"
],
"devDependencies": {
"@dbgate/types": "^0.1.0",
"@types/node": "^13.7.0",
"typescript": "^3.7.5"
},
"dependencies": {
"@types/parsimmon": "^1.10.1",
"lodash": "^4.17.15",
"parsimmon": "^1.13.0"
}
}

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@ -0,0 +1,44 @@
import P from 'parsimmon';
import { FilterType } from './types';
const whitespace = P.regexp(/\s*/m);
function token(parser) {
return parser.skip(whitespace);
}
function interpretEscapes(str) {
let escapes = {
b: '\b',
f: '\f',
n: '\n',
r: '\r',
t: '\t',
};
return str.replace(/\\(u[0-9a-fA-F]{4}|[^u])/, (_, escape) => {
let type = escape.charAt(0);
let hex = escape.slice(1);
if (type === 'u') {
return String.fromCharCode(parseInt(hex, 16));
}
if (escapes.hasOwnProperty(type)) {
return escapes[type];
}
return type;
});
}
const parser = P.createLanguage({
expr: r => P.alt(r.string),
string: () =>
token(P.regexp(/"((?:\\.|.)*?)"/, 1))
.map(interpretEscapes)
.desc('string'),
});
export function parseFilter(value: string, filterType: FilterType) {
const ast = parser.expr.tryParse(value);
console.log(ast);
return ast;
}

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@ -0,0 +1,3 @@
import parserFilter, { parseFilter } from './parseFilter';
test('parse string', parseFilter('"123"', 'string'));

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// import types from '@dbgate/types';
export type FilterType = 'number' | 'string' | 'datetime' | 'logical';

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{
"compilerOptions": {
"target": "ES2015",
"module": "commonjs",
"declaration": true,
"skipLibCheck": true,
"outDir": "lib",
"preserveWatchOutput": true,
"esModuleInterop": true
},
"include": [
"src/**/*"
]
}

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@ -1489,6 +1489,11 @@
resolved "https://registry.yarnpkg.com/@types/parse-json/-/parse-json-4.0.0.tgz#2f8bb441434d163b35fb8ffdccd7138927ffb8c0"
integrity sha512-//oorEZjL6sbPcKUaCdIGlIUeH26mgzimjBB77G6XRgnDl/L5wOnpyBGRe/Mmf5CVW3PwEBE1NjiMZ/ssFh4wA==
"@types/parsimmon@^1.10.1":
version "1.10.1"
resolved "https://registry.yarnpkg.com/@types/parsimmon/-/parsimmon-1.10.1.tgz#d46015ad91128fce06a1a688ab39a2516507f740"
integrity sha512-MoF2IC9oGSgArJwlxdst4XsvWuoYfNUWtBw0kpnCi6K05kV+Ecl7siEeJ40tgCbI9uqEMGQL/NlPMRv6KVkY5Q==
"@types/prop-types@*":
version "15.7.3"
resolved "https://registry.yarnpkg.com/@types/prop-types/-/prop-types-15.7.3.tgz#2ab0d5da2e5815f94b0b9d4b95d1e5f243ab2ca7"
@ -8427,6 +8432,11 @@ parseurl@~1.3.2, parseurl@~1.3.3:
resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.3.tgz#9da19e7bee8d12dff0513ed5b76957793bc2e8d4"
integrity sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ==
parsimmon@^1.13.0:
version "1.13.0"
resolved "https://registry.yarnpkg.com/parsimmon/-/parsimmon-1.13.0.tgz#6e4ef3dbd45ed6ea6808be600ac4b9c8a44228cf"
integrity sha512-5UIrOCW+gjbILkjKPgTgmq8LKf8TT3Iy7kN2VD7OtQ81facKn8B4gG1X94jWqXYZsxG2KbJhrv/Yq/5H6BQn7A==
pascalcase@^0.1.1:
version "0.1.1"
resolved "https://registry.yarnpkg.com/pascalcase/-/pascalcase-0.1.1.tgz#b363e55e8006ca6fe21784d2db22bd15d7917f14"