flynx/argv.js
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notes...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2020-07-17 05:34:51 +03:00
parent edaefa191a
commit 493db8fbf6
2 changed files with 21 additions and 3 deletions
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17
argv.js
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@ -195,6 +195,15 @@ var afterCallback = function(name, pre, post){
// ...manually this is trivial, automating it would complicate things, // ...manually this is trivial, automating it would complicate things,
// will think about it when we need this feature more than once... // will think about it when we need this feature more than once...
// XXX FEATURE (DELAYED): multiple prefixes, like '+' and the like... // XXX FEATURE (DELAYED): multiple prefixes, like '+' and the like...
// ...one way to do this manualy now is to set the appropriate
// .optionInputPattern and handle the arg in the handler itself...
// ...not sure yet how to automate this:
// - prefix handler -- pass the prefix to a special handler and
// it decides what to do...
// -help -> this.handlePrefix('-', ...)
// - option prefix derived from arg prefix i.e.
// -help -> this['-help'](..)
// +help -> this['+help'](..)
// //
// //
// XXX should -help should work for any command? ..not just nested parsers? // XXX should -help should work for any command? ..not just nested parsers?
@ -596,7 +605,7 @@ object.Constructor('Parser', {
&& process.exit(1) }, && process.exit(1) },
// post parsing callbacks... // Post parsing callbacks...
// //
// .then(callback(unhandleed, root_value, rest)) // .then(callback(unhandleed, root_value, rest))
// //
@ -607,7 +616,7 @@ object.Constructor('Parser', {
stop: afterCallback('stop'), stop: afterCallback('stop'),
error: afterCallback('error'), error: afterCallback('error'),
// remove callback... // Remove callback...
off: function(evt, handler){ off: function(evt, handler){
var l = this['__after_'+evt] var l = this['__after_'+evt]
var i = l.indexOf(handler) var i = l.indexOf(handler)
@ -616,6 +625,7 @@ object.Constructor('Parser', {
return this }, return this },
// Handle the arguments...
// //
// parser() // parser()
// -> result // -> result
@ -626,6 +636,7 @@ object.Constructor('Parser', {
// parser(argv, main) // parser(argv, main)
// -> result // -> result
// //
//
// NOTE: the result is an object inherited from parser and containing // NOTE: the result is an object inherited from parser and containing
// all the parse data... // all the parse data...
// NOTE: this (i.e. parser) can be used as a nested command/option // NOTE: this (i.e. parser) can be used as a nested command/option
@ -737,7 +748,7 @@ object.Constructor('Parser', {
var handler = parsed.handler(a)[1] var handler = parsed.handler(a)[1]
return [a, handler] } return [a, handler] }
// parse the arguments and call handlers... // parse/interpret the arguments and call handlers...
var values = new Set() var values = new Set()
var seen = new Set() var seen = new Set()
var unhandled = parsed.unhandled = [] var unhandled = parsed.unhandled = []

7
test.js
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@ -112,6 +112,13 @@ argv.Parser({
var lang = var lang =
module.lang = module.lang =
argv.Parser({ argv.Parser({
// handle both +x and -x
optionInputPattern: /^[+-][+-]?(.*)$/,
// XXX for testing, remove when done...
'-echo': function(...args){
console.log('ECHO:', ...args)},
// helpers... // helpers...
push: function(...items){ push: function(...items){
this.unhandled.splice(this.unhandled.length, 0, ...items) this.unhandled.splice(this.unhandled.length, 0, ...items)