-
Notifications
You must be signed in to change notification settings - Fork 378
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
6 changed files
with
160 additions
and
148 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| class CLIArgParser { | ||
| args = []; | ||
| #aliases = {}; | ||
|
|
||
| #usage = ""; | ||
| #argv = null; | ||
|
|
||
| // constructor | ||
| constructor(args) { | ||
| if (Array.isArray(args)) | ||
| this.args = args; | ||
| } | ||
|
|
||
| usage(usageMsg) { | ||
| this.#usage = usageMsg + '\n\nOptions:\n'; | ||
| return this; | ||
| } | ||
|
|
||
| alias(key, name, description) { | ||
| this.#aliases[key] = {name, description}; | ||
| return this; | ||
| } | ||
|
|
||
| showHelp() { | ||
| let helpMsg = this.#usage; | ||
| for (const [key, value] of Object.entries(this.#aliases)) { | ||
| helpMsg += `-${key},--${value.name}\t ${value.description}\n`; | ||
| } | ||
| console.log(helpMsg); | ||
| } | ||
|
|
||
| get argv() { | ||
| return this.#argv ? this.#argv : this.#parseArgv(); | ||
| } | ||
|
|
||
| static isNumber (x) { | ||
| if (typeof x === 'number') | ||
| return true; | ||
| if (/^0x[0-9a-f]+$/i.test(x)) | ||
| return true; | ||
| return /^[-+]?(?:\d+(?:\.\d*)?|\.\d+)(e[-+]?\d+)?$/.test(x); | ||
| } | ||
|
|
||
| #setArg(key, val, argv) { | ||
| const value = CLIArgParser.isNumber(val) ? Number(val) : val; | ||
| this.#setKey(argv, key.split('.'), value); | ||
|
|
||
| const aliasKey = (key in this.#aliases) ? [this.#aliases[key].name] : []; | ||
| if (aliasKey.length < 1) { | ||
| for (const [akey, avalue] of Object.entries(this.#aliases)) { | ||
| if (key === avalue.name) { | ||
| aliasKey.push(akey); | ||
| break; | ||
| } | ||
| } | ||
| } | ||
| aliasKey.forEach(x => this.#setKey(argv, x.split('.'), value)); | ||
| } | ||
|
|
||
| #setKey(obj, keys, value) { | ||
| let o = obj; | ||
| for (let i = 0; i < keys.length-1; i++) { | ||
| let key = keys[i]; | ||
| if (key === '__proto__') return; | ||
| if (o[key] === undefined) o[key] = {}; | ||
| if (o[key] === Object.prototype || o[key] === Number.prototype | ||
| || o[key] === String.prototype) o[key] = {}; | ||
| if (o[key] === Array.prototype) o[key] = []; | ||
| o = o[key]; | ||
| } | ||
|
|
||
| let key = keys[keys.length - 1]; | ||
| if (key === '__proto__') return; | ||
| if (o === Object.prototype || o === Number.prototype | ||
| || o === String.prototype) o = {}; | ||
| if (o === Array.prototype) o = []; | ||
| if (o[key] === undefined) { | ||
| o[key] = value; | ||
| } | ||
| else if (Array.isArray(o[key])) { | ||
| o[key].push(value); | ||
| } | ||
| else { | ||
| o[key] = [ o[key], value ]; | ||
| } | ||
| } | ||
|
|
||
| #parseArgv() { | ||
| let aliases=this.#aliases, args = this.args; | ||
| let argv = {}; | ||
|
|
||
| for (let i = 0; i < args.length; i++) { | ||
| let arg = args[i]; | ||
|
|
||
| if (/^--.+/.test(arg)) { | ||
| let key = arg.match(/^--(.+)/)[1]; | ||
| let next = args[i + 1]; | ||
| if (next !== undefined && !/^-/.test(next)) { | ||
| this.#setArg(key, next, argv); | ||
| i++; | ||
| } | ||
| else if (/^(true|false)$/.test(next)) { | ||
| this.#setArg(key, next === 'true', argv); | ||
| i++; | ||
| } | ||
| else { | ||
| this.#setArg(key, true, argv); | ||
| } | ||
| } | ||
| else if (/^-[^-]+/.test(arg)) { | ||
| let key = arg.slice(-1)[0]; | ||
| if (key !== '-') { | ||
| if (args[i+1] && !/^(-|--)[^-]/.test(args[i+1])) { | ||
| this.#setArg(key, args[i+1], argv); | ||
| i++; | ||
| } | ||
| else if (args[i+1] && /^(true|false)$/.test(args[i+1])) { | ||
| this.#setArg(key, args[i+1] === 'true', argv); | ||
| i++; | ||
| } | ||
| else { | ||
| this.#setArg(key, true, argv); | ||
| } | ||
| } | ||
| } | ||
| else { | ||
| console.warn("Unknow CLI options:", arg); | ||
| } | ||
| } | ||
|
|
||
| this.#argv = argv; | ||
| return argv; | ||
| } | ||
| } | ||
|
|
||
| module.exports = new CLIArgParser(process.argv.slice(2)); |
Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters