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started work on argv parser to support nested commands...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2020-06-13 05:13:58 +03:00
parent 2a3134ad4c
commit 63c8e7447e
1 changed files with 21 additions and 10 deletions
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31
test.js
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@ -157,13 +157,14 @@ var ArgvParser = function(spec){
// NOTE: this is intentionally not dynamic...
spec = Object.assign({
// builtin options...
h: 'help',
'-h': '-help',
// XXX revise...
help: {
'-help': {
doc: 'print this message and exit.',
handler: function(){
var spec = this.spec
var that = this
var x
console.log([
`Usage: ${
typeof(spec.__usage__) == 'function' ?
@ -180,7 +181,11 @@ var ArgvParser = function(spec){
'Options:',
...(spec.__getoptions__()
.map(function([opts, arg, doc]){
return ['-'+opts.join(' | -') +' '+ (arg || ''), doc] })),
return [opts.join(' | -') +' '+ (arg || ''), doc] })),
// commands...
...(((x = spec.__getcommands__()) && x.length > 0) ?
['', 'Commands:', ...x]
: []),
// examples...
...(this.spec.__examples__ ?
['', 'Examples:', ...(
@ -188,12 +193,12 @@ var ArgvParser = function(spec){
spec.__examples__
.map(function(e){
return e instanceof Array ? e : [e] })
: spec.__examples__.call(this) )]
: spec.__examples__(this) )]
: []),
// footer...
...(this.spec.__footer__?
['', typeof(this.spec.__footer__) == 'function' ?
spec.__footer__.call(this)
spec.__footer__(this)
: spec.__footer__]
: []) ]
.map(function(e){
@ -212,6 +217,7 @@ var ArgvParser = function(spec){
process.exit() }},
// special values and methods...
__opt_pattern__: /^--?/,
__opts_width__: 3,
__doc_prefix__: '- ',
@ -249,7 +255,12 @@ var ArgvParser = function(spec){
handlers[k][0].push(opt)
: (handlers[k] = [[opt], h.arg, h.doc || k, h]) })
return Object.values(handlers) },
// XXX get all instances of ArgvParser in spec...
__getcommands__: function(){
return []
},
__gethandler__: function(key){
key = key.replace(this.__opt_pattern__ || /^--?/, '-')
var seen = new Set([key])
while(key in this
&& typeof(this[key]) == typeof('str')){
@ -282,7 +293,7 @@ var ArgvParser = function(spec){
var arg = argv.shift()
// options...
if(pattern.test(arg)){
var handler = spec.__gethandler__(arg.replace(/^--?/, '')).pop()
var handler = spec.__gethandler__(arg).pop()
|| spec.__unknown__
// get option value...
var value = (handler.arg && !pattern.test(argv[0])) ?
@ -1044,8 +1055,8 @@ if(typeof(__filename) != 'undefined'
'set verbose mode globally and run tests.'.gray],
],
// options...
l: 'list',
list: {
'-l': '-list',
'-list': {
doc: 'list available tests.',
handler: function(){
console.log(object.normalizeTextIndent(
@ -1072,8 +1083,8 @@ if(typeof(__filename) != 'undefined'
') }
`), this.scriptname)
process.exit() }},
v: 'verbose',
verbose: {
'-v': '-verbose',
'-verbose': {
doc: 'verbose mode (defaults to: $VERBOSE).',
handler: function(){
module.VERBOSE = true }},