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Diffstat (limited to 'node_modules/split-string/index.js')
-rw-r--r-- | node_modules/split-string/index.js | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/node_modules/split-string/index.js b/node_modules/split-string/index.js new file mode 100644 index 0000000..7bc0ea9 --- /dev/null +++ b/node_modules/split-string/index.js @@ -0,0 +1,171 @@ +/*! + * split-string <https://github.com/jonschlinkert/split-string> + * + * Copyright (c) 2015-2017, Jon Schlinkert. + * Released under the MIT License. + */ + +'use strict'; + +var extend = require('extend-shallow'); + +module.exports = function(str, options, fn) { + if (typeof str !== 'string') { + throw new TypeError('expected a string'); + } + + if (typeof options === 'function') { + fn = options; + options = null; + } + + // allow separator to be defined as a string + if (typeof options === 'string') { + options = { sep: options }; + } + + var opts = extend({sep: '.'}, options); + var quotes = opts.quotes || ['"', "'", '`']; + var brackets; + + if (opts.brackets === true) { + brackets = { + '<': '>', + '(': ')', + '[': ']', + '{': '}' + }; + } else if (opts.brackets) { + brackets = opts.brackets; + } + + var tokens = []; + var stack = []; + var arr = ['']; + var sep = opts.sep; + var len = str.length; + var idx = -1; + var closeIdx; + + function expected() { + if (brackets && stack.length) { + return brackets[stack[stack.length - 1]]; + } + } + + while (++idx < len) { + var ch = str[idx]; + var next = str[idx + 1]; + var tok = { val: ch, idx: idx, arr: arr, str: str }; + tokens.push(tok); + + if (ch === '\\') { + tok.val = keepEscaping(opts, str, idx) === true ? (ch + next) : next; + tok.escaped = true; + if (typeof fn === 'function') { + fn(tok); + } + arr[arr.length - 1] += tok.val; + idx++; + continue; + } + + if (brackets && brackets[ch]) { + stack.push(ch); + var e = expected(); + var i = idx + 1; + + if (str.indexOf(e, i + 1) !== -1) { + while (stack.length && i < len) { + var s = str[++i]; + if (s === '\\') { + s++; + continue; + } + + if (quotes.indexOf(s) !== -1) { + i = getClosingQuote(str, s, i + 1); + continue; + } + + e = expected(); + if (stack.length && str.indexOf(e, i + 1) === -1) { + break; + } + + if (brackets[s]) { + stack.push(s); + continue; + } + + if (e === s) { + stack.pop(); + } + } + } + + closeIdx = i; + if (closeIdx === -1) { + arr[arr.length - 1] += ch; + continue; + } + + ch = str.slice(idx, closeIdx + 1); + tok.val = ch; + tok.idx = idx = closeIdx; + } + + if (quotes.indexOf(ch) !== -1) { + closeIdx = getClosingQuote(str, ch, idx + 1); + if (closeIdx === -1) { + arr[arr.length - 1] += ch; + continue; + } + + if (keepQuotes(ch, opts) === true) { + ch = str.slice(idx, closeIdx + 1); + } else { + ch = str.slice(idx + 1, closeIdx); + } + + tok.val = ch; + tok.idx = idx = closeIdx; + } + + if (typeof fn === 'function') { + fn(tok, tokens); + ch = tok.val; + idx = tok.idx; + } + + if (tok.val === sep && tok.split !== false) { + arr.push(''); + continue; + } + + arr[arr.length - 1] += tok.val; + } + + return arr; +}; + +function getClosingQuote(str, ch, i, brackets) { + var idx = str.indexOf(ch, i); + if (str.charAt(idx - 1) === '\\') { + return getClosingQuote(str, ch, idx + 1); + } + return idx; +} + +function keepQuotes(ch, opts) { + if (opts.keepDoubleQuotes === true && ch === '"') return true; + if (opts.keepSingleQuotes === true && ch === "'") return true; + return opts.keepQuotes; +} + +function keepEscaping(opts, str, idx) { + if (typeof opts.keepEscaping === 'function') { + return opts.keepEscaping(str, idx); + } + return opts.keepEscaping === true || str[idx + 1] === '\\'; +} |