'use strict';
|
|
var brackets = require('expand-brackets');
|
var define = require('define-property');
|
var utils = require('./utils');
|
|
/**
|
* Characters to use in text regex (we want to "not" match
|
* characters that are matched by other parsers)
|
*/
|
|
var TEXT_REGEX = '([!@*?+]?\\(|\\)|[*?.+\\\\]|\\[:?(?=.*\\])|:?\\])+';
|
var not = utils.createRegex(TEXT_REGEX);
|
|
/**
|
* Extglob parsers
|
*/
|
|
function parsers(extglob) {
|
extglob.state = extglob.state || {};
|
|
/**
|
* Use `expand-brackets` parsers
|
*/
|
|
extglob.use(brackets.parsers);
|
extglob.parser.sets.paren = extglob.parser.sets.paren || [];
|
extglob.parser
|
|
/**
|
* Extglob open: "*("
|
*/
|
|
.capture('paren.open', function() {
|
var parsed = this.parsed;
|
var pos = this.position();
|
var m = this.match(/^([!@*?+])?\(/);
|
if (!m) return;
|
|
var prev = this.prev();
|
var prefix = m[1];
|
var val = m[0];
|
|
var open = pos({
|
type: 'paren.open',
|
parsed: parsed,
|
val: val
|
});
|
|
var node = pos({
|
type: 'paren',
|
prefix: prefix,
|
nodes: [open]
|
});
|
|
// if nested negation extglobs, just cancel them out to simplify
|
if (prefix === '!' && prev.type === 'paren' && prev.prefix === '!') {
|
prev.prefix = '@';
|
node.prefix = '@';
|
}
|
|
define(node, 'rest', this.input);
|
define(node, 'parsed', parsed);
|
define(node, 'parent', prev);
|
define(open, 'parent', node);
|
|
this.push('paren', node);
|
prev.nodes.push(node);
|
})
|
|
/**
|
* Extglob close: ")"
|
*/
|
|
.capture('paren.close', function() {
|
var parsed = this.parsed;
|
var pos = this.position();
|
var m = this.match(/^\)/);
|
if (!m) return;
|
|
var parent = this.pop('paren');
|
var node = pos({
|
type: 'paren.close',
|
rest: this.input,
|
parsed: parsed,
|
val: m[0]
|
});
|
|
if (!this.isType(parent, 'paren')) {
|
if (this.options.strict) {
|
throw new Error('missing opening paren: "("');
|
}
|
node.escaped = true;
|
return node;
|
}
|
|
node.prefix = parent.prefix;
|
parent.nodes.push(node);
|
define(node, 'parent', parent);
|
})
|
|
/**
|
* Escape: "\\."
|
*/
|
|
.capture('escape', function() {
|
var pos = this.position();
|
var m = this.match(/^\\(.)/);
|
if (!m) return;
|
|
return pos({
|
type: 'escape',
|
val: m[0],
|
ch: m[1]
|
});
|
})
|
|
/**
|
* Question marks: "?"
|
*/
|
|
.capture('qmark', function() {
|
var parsed = this.parsed;
|
var pos = this.position();
|
var m = this.match(/^\?+(?!\()/);
|
if (!m) return;
|
extglob.state.metachar = true;
|
return pos({
|
type: 'qmark',
|
rest: this.input,
|
parsed: parsed,
|
val: m[0]
|
});
|
})
|
|
/**
|
* Character parsers
|
*/
|
|
.capture('star', /^\*(?!\()/)
|
.capture('plus', /^\+(?!\()/)
|
.capture('dot', /^\./)
|
.capture('text', not);
|
};
|
|
/**
|
* Expose text regex string
|
*/
|
|
module.exports.TEXT_REGEX = TEXT_REGEX;
|
|
/**
|
* Extglob parsers
|
*/
|
|
module.exports = parsers;
|
