* first action! (#1)

node_modules/JSONStream/index.js

@@ -0,0 +1,247 @@
+'use strict'
+
+var Parser = require('jsonparse')
+  , through = require('through')
+
+var bufferFrom = Buffer.from && Buffer.from !== Uint8Array.from
+
+/*
+
+  the value of this.stack that creationix's jsonparse has is weird.
+
+  it makes this code ugly, but his problem is way harder that mine,
+  so i'll forgive him.
+
+*/
+
+exports.parse = function (path, map) {
+  var header, footer
+  var parser = new Parser()
+  var stream = through(function (chunk) {
+    if('string' === typeof chunk)
+      chunk = bufferFrom ? Buffer.from(chunk) : new Buffer(chunk)
+    parser.write(chunk)
+  },
+  function (data) {
+    if(data)
+      stream.write(data)
+    if (header)
+        stream.emit('header', header)
+    if (footer)
+      stream.emit('footer', footer)
+    stream.queue(null)
+  })
+
+  if('string' === typeof path)
+    path = path.split('.').map(function (e) {
+      if (e === '$*')
+        return {emitKey: true}
+      else if (e === '*')
+        return true
+      else if (e === '') // '..'.split('.') returns an empty string
+        return {recurse: true}
+      else
+        return e
+    })
+
+
+  var count = 0, _key
+  if(!path || !path.length)
+    path = null
+
+  parser.onValue = function (value) {
+    if (!this.root)
+      stream.root = value
+
+    if(! path) return
+
+    var i = 0 // iterates on path
+    var j  = 0 // iterates on stack
+    var emitKey = false;
+    var emitPath = false;
+    while (i < path.length) {
+      var key = path[i]
+      var c
+      j++
+
+      if (key && !key.recurse) {
+        c = (j === this.stack.length) ? this : this.stack[j]
+        if (!c) return
+        if (! check(key, c.key)) {
+          setHeaderFooter(c.key, value)
+          return
+        }
+        emitKey = !!key.emitKey;
+        emitPath = !!key.emitPath;
+        i++
+      } else {
+        i++
+        var nextKey = path[i]
+        if (! nextKey) return
+        while (true) {
+          c = (j === this.stack.length) ? this : this.stack[j]
+          if (!c) return
+          if (check(nextKey, c.key)) {
+            i++;
+            if (!Object.isFrozen(this.stack[j]))
+              this.stack[j].value = null
+            break
+          } else {
+            setHeaderFooter(c.key, value)
+          }
+          j++
+        }
+      }
+
+    }
+
+    // emit header
+    if (header) {
+      stream.emit('header', header);
+      header = false;
+    }
+    if (j !== this.stack.length) return
+
+    count ++
+    var actualPath = this.stack.slice(1).map(function(element) { return element.key }).concat([this.key])
+    var data = value
+    if(null != data)
+      if(null != (data = map ? map(data, actualPath) : data)) {
+        if (emitKey || emitPath) {
+          data = { value: data };
+          if (emitKey)
+            data["key"] = this.key;
+          if (emitPath)
+            data["path"] = actualPath;
+        }
+
+        stream.queue(data)
+      }
+    if (this.value) delete this.value[this.key]
+    for(var k in this.stack)
+      if (!Object.isFrozen(this.stack[k]))
+        this.stack[k].value = null
+  }
+  parser._onToken = parser.onToken;
+
+  parser.onToken = function (token, value) {
+    parser._onToken(token, value);
+    if (this.stack.length === 0) {
+      if (stream.root) {
+        if(!path)
+          stream.queue(stream.root)
+        count = 0;
+        stream.root = null;
+      }
+    }
+  }
+
+  parser.onError = function (err) {
+    if(err.message.indexOf("at position") > -1)
+      err.message = "Invalid JSON (" + err.message + ")";
+    stream.emit('error', err)
+  }
+
+  return stream
+
+  function setHeaderFooter(key, value) {
+    // header has not been emitted yet
+    if (header !== false) {
+      header = header || {}
+      header[key] = value
+    }
+
+    // footer has not been emitted yet but header has
+    if (footer !== false && header === false) {
+      footer = footer || {}
+      footer[key] = value
+    }
+  }
+}
+
+function check (x, y) {
+  if ('string' === typeof x)
+    return y == x
+  else if (x && 'function' === typeof x.exec)
+    return x.exec(y)
+  else if ('boolean' === typeof x || 'object' === typeof x)
+    return x
+  else if ('function' === typeof x)
+    return x(y)
+  return false
+}
+
+exports.stringify = function (op, sep, cl, indent) {
+  indent = indent || 0
+  if (op === false){
+    op = ''
+    sep = '\n'
+    cl = ''
+  } else if (op == null) {
+
+    op = '[\n'
+    sep = '\n,\n'
+    cl = '\n]\n'
+
+  }
+
+  //else, what ever you like
+
+  var stream
+    , first = true
+    , anyData = false
+  stream = through(function (data) {
+    anyData = true
+    try {
+      var json = JSON.stringify(data, null, indent)
+    } catch (err) {
+      return stream.emit('error', err)
+    }
+    if(first) { first = false ; stream.queue(op + json)}
+    else stream.queue(sep + json)
+  },
+  function (data) {
+    if(!anyData)
+      stream.queue(op)
+    stream.queue(cl)
+    stream.queue(null)
+  })
+
+  return stream
+}
+
+exports.stringifyObject = function (op, sep, cl, indent) {
+  indent = indent || 0
+  if (op === false){
+    op = ''
+    sep = '\n'
+    cl = ''
+  } else if (op == null) {
+
+    op = '{\n'
+    sep = '\n,\n'
+    cl = '\n}\n'
+
+  }
+
+  //else, what ever you like
+
+  var first = true
+  var anyData = false
+  var stream = through(function (data) {
+    anyData = true
+    var json = JSON.stringify(data[0]) + ':' + JSON.stringify(data[1], null, indent)
+    if(first) { first = false ; this.queue(op + json)}
+    else this.queue(sep + json)
+  },
+  function (data) {
+    if(!anyData) this.queue(op)
+    this.queue(cl)
+
+    this.queue(null)
+  })
+
+  return stream
+}
+
+