feat: add ast parse to cron unix syntax

lib/crontab-parse.spec.ts

@@ -0,0 +1,191 @@
+import {
+ assertArrayIncludes,
+ assertEquals,
+ assertInstanceOf,
+ assertObjectMatch,
+} from "https://deno.land/std@0.204.0/assert/mod.ts";
+import { astCrontabParse } from "./crontab-parse.ts";
+
+Deno.test("Parse AST", () => {
+ assertEquals(
+ astCrontabParse("* * * * *"),
+ {
+ type: "Statement",
+ start: 0,
+ end: 9,
+ body: [
+ {
+ type: 'AnyValue',
+ start: 0,
+ end: 1,
+ },
+ {
+ end: 3,
+ start: 2,
+ type: "AnyValue",
+ },
+ {
+ end: 5,
+ start: 4,
+ type: "AnyValue",
+ },
+ {
+ end: 7,
+ start: 6,
+ type: "AnyValue",
+ },
+ {
+ end: 9,
+ start: 8,
+ type: "AnyValue",
+ },
+ ]
+ }
+ )
+})
+
+Deno.test("Parse AST", () => {
+ assertEquals(
+ astCrontabParse("1 * * * *").body.at(0),
+ {
+ type: 'NumberValue',
+ start: 0,
+ end: 1,
+ value: 1
+ }
+ );
+ assertObjectMatch(
+ astCrontabParse("1,2,3,4 * * * *"),
+ {
+ body: [{
+ values: [
+ { type: 'NumberValue', value: 1 },
+ { type: 'NumberValue', value: 2 },
+ { type: 'NumberValue', value: 3 },
+ { type: 'NumberValue', value: 4 },
+ ]
+ }]
+ }
+ );
+ assertObjectMatch(
+ astCrontabParse("1,2,3,4 * * * *"),
+ {
+ body: [{
+ values: [
+ { type: 'NumberValue', value: 1 },
+ { type: 'NumberValue', value: 2 },
+ { type: 'NumberValue', value: 3 },
+ { type: 'NumberValue', value: 4 },
+ ]
+ }]
+ }
+ );
+ assertObjectMatch(
+ astCrontabParse("1,2,3,4 * * * *"),
+ {
+ body: [{
+ type: 'ListValue',
+ values: [
+ { type: 'NumberValue', value: 1 },
+ { type: 'NumberValue', value: 2 },
+ { type: 'NumberValue', value: 3 },
+ { type: 'NumberValue', value: 4 },
+ ]
+ }]
+ }
+ );
+ assertObjectMatch(
+ astCrontabParse("1 * * * *"),
+ {
+ body: [{
+ type: 'NumberValue',
+ value: 1
+ }]
+ }
+ );
+ assertObjectMatch(
+ astCrontabParse("1/2 * * * *"),
+ {
+ body: [{
+ type: 'StepValue',
+ left: { type: "NumberValue", value: 1 },
+ right: { type: "NumberValue", value: 2 },
+ }]
+ }
+ );
+ assertObjectMatch(
+ astCrontabParse("1-2 * * * *"),
+ {
+ body: [{
+ type: 'RangeValue',
+ left: {
+ type: 'NumberValue',
+ value: 1
+ },
+ right: {
+ type: 'NumberValue',
+ value: 2
+ }
+ }]
+ }
+ );
+ assertObjectMatch(
+ astCrontabParse("1-2/3 * * * *"),
+ {
+ body: [{
+ type: 'StepValue',
+ left: {
+ type: 'RangeValue',
+ left: {
+ type: 'NumberValue',
+ value: 1
+ },
+ right: {
+ type: 'NumberValue',
+ value: 2
+ }
+ },
+ right: {
+ type: 'NumberValue',
+ value: 3
+ }
+ }]
+ }
+ );
+ assertObjectMatch(
+ astCrontabParse("4,1-2/3 * * * *"),
+ {
+ body: [{
+ type: "ListValue",
+ values: [
+ {
+ type: "NumberValue",
+ value: 4
+ },
+ {
+ type: 'StepValue',
+ left: {
+ type: 'RangeValue',
+ left: {
+ type: 'NumberValue',
+ value: 1
+ },
+ right: {
+ type: 'NumberValue',
+ value: 2
+ }
+ },
+ right: {
+ type: 'NumberValue',
+ value: 3
+ }
+ }
+ ]
+ }]
+ }
+ );
+ assertObjectMatch(
+ astCrontabParse("* * * jan *"),
+ { body: [{}, {}, {}, { value: 1 }] },
+ );
+})