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author | Dimitri Staessens <dimitri@ouroboros.rocks> | 2019-10-06 21:37:45 +0200 |
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committer | Dimitri Staessens <dimitri@ouroboros.rocks> | 2019-10-06 21:37:45 +0200 |
commit | 3c51c3be85bb0d1bdb87ea0d6632f1c256912f27 (patch) | |
tree | c7ccc8279b12c4f7bdbbb4270d617e48f51722e4 /node_modules/expand-brackets/lib | |
parent | 412c104bebc507bea9c94fd53b5bdc4b64cbfe31 (diff) | |
download | website-3c51c3be85bb0d1bdb87ea0d6632f1c256912f27.tar.gz website-3c51c3be85bb0d1bdb87ea0d6632f1c256912f27.zip |
build: Add some required modules for node
Diffstat (limited to 'node_modules/expand-brackets/lib')
-rw-r--r-- | node_modules/expand-brackets/lib/compilers.js | 87 | ||||
-rw-r--r-- | node_modules/expand-brackets/lib/parsers.js | 219 | ||||
-rw-r--r-- | node_modules/expand-brackets/lib/utils.js | 34 |
3 files changed, 340 insertions, 0 deletions
diff --git a/node_modules/expand-brackets/lib/compilers.js b/node_modules/expand-brackets/lib/compilers.js new file mode 100644 index 0000000..fbf7fe8 --- /dev/null +++ b/node_modules/expand-brackets/lib/compilers.js @@ -0,0 +1,87 @@ +'use strict'; + +var posix = require('posix-character-classes'); + +module.exports = function(brackets) { + brackets.compiler + + /** + * Escaped characters + */ + + .set('escape', function(node) { + return this.emit('\\' + node.val.replace(/^\\/, ''), node); + }) + + /** + * Text + */ + + .set('text', function(node) { + return this.emit(node.val.replace(/([{}])/g, '\\$1'), node); + }) + + /** + * POSIX character classes + */ + + .set('posix', function(node) { + if (node.val === '[::]') { + return this.emit('\\[::\\]', node); + } + + var val = posix[node.inner]; + if (typeof val === 'undefined') { + val = '[' + node.inner + ']'; + } + return this.emit(val, node); + }) + + /** + * Non-posix brackets + */ + + .set('bracket', function(node) { + return this.mapVisit(node.nodes); + }) + .set('bracket.open', function(node) { + return this.emit(node.val, node); + }) + .set('bracket.inner', function(node) { + var inner = node.val; + + if (inner === '[' || inner === ']') { + return this.emit('\\' + node.val, node); + } + if (inner === '^]') { + return this.emit('^\\]', node); + } + if (inner === '^') { + return this.emit('^', node); + } + + if (/-/.test(inner) && !/(\d-\d|\w-\w)/.test(inner)) { + inner = inner.split('-').join('\\-'); + } + + var isNegated = inner.charAt(0) === '^'; + // add slashes to negated brackets, per spec + if (isNegated && inner.indexOf('/') === -1) { + inner += '/'; + } + if (isNegated && inner.indexOf('.') === -1) { + inner += '.'; + } + + // don't unescape `0` (octal literal) + inner = inner.replace(/\\([1-9])/g, '$1'); + return this.emit(inner, node); + }) + .set('bracket.close', function(node) { + var val = node.val.replace(/^\\/, ''); + if (node.parent.escaped === true) { + return this.emit('\\' + val, node); + } + return this.emit(val, node); + }); +}; diff --git a/node_modules/expand-brackets/lib/parsers.js b/node_modules/expand-brackets/lib/parsers.js new file mode 100644 index 0000000..450a512 --- /dev/null +++ b/node_modules/expand-brackets/lib/parsers.js @@ -0,0 +1,219 @@ +'use strict'; + +var utils = require('./utils'); +var define = require('define-property'); + +/** + * Text regex + */ + +var TEXT_REGEX = '(\\[(?=.*\\])|\\])+'; +var not = utils.createRegex(TEXT_REGEX); + +/** + * Brackets parsers + */ + +function parsers(brackets) { + brackets.state = brackets.state || {}; + brackets.parser.sets.bracket = brackets.parser.sets.bracket || []; + brackets.parser + + .capture('escape', function() { + if (this.isInside('bracket')) return; + var pos = this.position(); + var m = this.match(/^\\(.)/); + if (!m) return; + + return pos({ + type: 'escape', + val: m[0] + }); + }) + + /** + * Text parser + */ + + .capture('text', function() { + if (this.isInside('bracket')) return; + var pos = this.position(); + var m = this.match(not); + if (!m || !m[0]) return; + + return pos({ + type: 'text', + val: m[0] + }); + }) + + /** + * POSIX character classes: "[[:alpha:][:digits:]]" + */ + + .capture('posix', function() { + var pos = this.position(); + var m = this.match(/^\[:(.*?):\](?=.*\])/); + if (!m) return; + + var inside = this.isInside('bracket'); + if (inside) { + brackets.posix++; + } + + return pos({ + type: 'posix', + insideBracket: inside, + inner: m[1], + val: m[0] + }); + }) + + /** + * Bracket (noop) + */ + + .capture('bracket', function() {}) + + /** + * Open: '[' + */ + + .capture('bracket.open', function() { + var parsed = this.parsed; + var pos = this.position(); + var m = this.match(/^\[(?=.*\])/); + if (!m) return; + + var prev = this.prev(); + var last = utils.last(prev.nodes); + + if (parsed.slice(-1) === '\\' && !this.isInside('bracket')) { + last.val = last.val.slice(0, last.val.length - 1); + return pos({ + type: 'escape', + val: m[0] + }); + } + + var open = pos({ + type: 'bracket.open', + val: m[0] + }); + + if (last.type === 'bracket.open' || this.isInside('bracket')) { + open.val = '\\' + open.val; + open.type = 'bracket.inner'; + open.escaped = true; + return open; + } + + var node = pos({ + type: 'bracket', + nodes: [open] + }); + + define(node, 'parent', prev); + define(open, 'parent', node); + this.push('bracket', node); + prev.nodes.push(node); + }) + + /** + * Bracket text + */ + + .capture('bracket.inner', function() { + if (!this.isInside('bracket')) return; + var pos = this.position(); + var m = this.match(not); + if (!m || !m[0]) return; + + var next = this.input.charAt(0); + var val = m[0]; + + var node = pos({ + type: 'bracket.inner', + val: val + }); + + if (val === '\\\\') { + return node; + } + + var first = val.charAt(0); + var last = val.slice(-1); + + if (first === '!') { + val = '^' + val.slice(1); + } + + if (last === '\\' || (val === '^' && next === ']')) { + val += this.input[0]; + this.consume(1); + } + + node.val = val; + return node; + }) + + /** + * Close: ']' + */ + + .capture('bracket.close', function() { + var parsed = this.parsed; + var pos = this.position(); + var m = this.match(/^\]/); + if (!m) return; + + var prev = this.prev(); + var last = utils.last(prev.nodes); + + if (parsed.slice(-1) === '\\' && !this.isInside('bracket')) { + last.val = last.val.slice(0, last.val.length - 1); + + return pos({ + type: 'escape', + val: m[0] + }); + } + + var node = pos({ + type: 'bracket.close', + rest: this.input, + val: m[0] + }); + + if (last.type === 'bracket.open') { + node.type = 'bracket.inner'; + node.escaped = true; + return node; + } + + var bracket = this.pop('bracket'); + if (!this.isType(bracket, 'bracket')) { + if (this.options.strict) { + throw new Error('missing opening "["'); + } + node.type = 'bracket.inner'; + node.escaped = true; + return node; + } + + bracket.nodes.push(node); + define(node, 'parent', bracket); + }); +} + +/** + * Brackets parsers + */ + +module.exports = parsers; + +/** + * Expose text regex + */ + +module.exports.TEXT_REGEX = TEXT_REGEX; diff --git a/node_modules/expand-brackets/lib/utils.js b/node_modules/expand-brackets/lib/utils.js new file mode 100644 index 0000000..599ff51 --- /dev/null +++ b/node_modules/expand-brackets/lib/utils.js @@ -0,0 +1,34 @@ +'use strict'; + +var toRegex = require('to-regex'); +var regexNot = require('regex-not'); +var cached; + +/** + * Get the last element from `array` + * @param {Array} `array` + * @return {*} + */ + +exports.last = function(arr) { + return arr[arr.length - 1]; +}; + +/** + * Create and cache regex to use for text nodes + */ + +exports.createRegex = function(pattern, include) { + if (cached) return cached; + var opts = {contains: true, strictClose: false}; + var not = regexNot.create(pattern, opts); + var re; + + if (typeof include === 'string') { + re = toRegex('^(?:' + include + '|' + not + ')', opts); + } else { + re = toRegex(not, opts); + } + + return (cached = re); +}; |