mirror of
https://github.com/flynx/argv.js.git
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111 lines
2.7 KiB
JavaScript
111 lines
2.7 KiB
JavaScript
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#!/usr/bin/env node
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var argv = require('../argv')
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var parser =
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exports.parser =
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argv.Parser({
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// XXX for testing, remove when done...
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'-echo': function(...args){
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console.log('ECHO:', ...args)},
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// helpers...
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push: function(...items){
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this.unhandled.splice(this.unhandled.length, 0, ...items)
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return this },
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exec: function(...items){
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this.rest.splice(0, 0, ...items)
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return this },
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pre_ns: argv.Parser({
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}),
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// XXX do not like the split namespaces....
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ns: {
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'[': [ 'blockto', '[:]' ],
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'(': [ 'blockto', ')', 'exec' ],
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'quote': [ 'quotenn', '0', '1' ],
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},
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'@*': function(code, value){
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this.unhandled.push(...(
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// type-convert...
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/^[+-]?[0-9]+$/.test(value) ?
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[parseInt(value)]
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: /^[+-]?[0-9.]+$/.test(value) ?
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[parseFloat(value)]
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// call user macros...
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: value in this.ns ?
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(this.exec(...this.ns[value]), [])
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// unhandled...
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: [value])) },
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// XXX hanck...
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'@quotenn': function(code){
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var skip = code.shift()
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var quote = code.shift()
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this.push(...code.splice(skip, quote)) },
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// XXX this needs blocks to be already made...
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// :: ( | name code -- | )
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'@::': function(code){
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this.ns[code.shift()] = code.shift() },
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// XXX revise...
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// groupb ( B | .. B -- | [ .. ])
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// groupb ( A:B | .. A .. B .. B -- | [ .. [ .. ] .. ])
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'@blockto': function(code, do_pack, value){
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value = value || code.shift()
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value = value instanceof Array ?
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value
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: value.split(':')
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var [f, t] = value.length == 1 ?
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[undefined, ...value]
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: value
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var pack = []
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var cur = code.shift()
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while(code.length > 0 && cur != t){
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cur = cur == f ?
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this['@blockto'](code, false, value)
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: cur
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pack.push(cur)
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cur = code.shift() }
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do_pack !== false
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&& code.unshift(pack)
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return pack },
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'@exec': function(code){
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var c = this.unhandled.pop()
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code.splice(0, 0, ...(c instanceof Array ? c : [c])) },
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'@exit': '-',
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'@dup': function(){
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this.push(...this.unhandled.slice(-1)) },
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'@dup2': function(){
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this.push(...this.unhandled.slice(-2)) },
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'@print': function(){
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this.print(this.unhandled.pop()) },
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'@add': function(){
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var [b, a] = [this.unhandled.pop(), this.unhandled.pop()]
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this.unhandled.push(a + b) },
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'@sub': function(){
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var [b, a] = [this.unhandled.pop(), this.unhandled.pop()]
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this.unhandled.push(a - b) },
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'@mul': function(){
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var [b, a] = [this.unhandled.pop(), this.unhandled.pop()]
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this.unhandled.push(a * b) },
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'@div': function(){
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var [b, a] = [this.unhandled.pop(), this.unhandled.pop()]
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this.unhandled.push(a / b) },
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})
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.then(function(){
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this.print('>>>', this.unhandled) })
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// vim:set ts=4 sw=4 spell :
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