static IPhpArray EnsureItemArray(IPhpArray array, IntStringKey key)
{
if (key.Equals(IntStringKey.EmptyStringKey))
{
var newarr = new PhpArray();
array.AddValue(PhpValue.Create(newarr));
return(newarr);
}
else
{
return(array.EnsureItemArray(key));
}
}
/// <summary>
/// Adds a variable to auto-global array.
/// Duplicit entries are collected into a sub-array item.
/// The routine respects <c>[subkey]</c> notation to build a hierarchy of sub-arrays.
/// </summary>
/// <param name="array">The array.</param>
/// <param name="name">A unparsed name of variable.</param>
/// <param name="value">A value to be added.</param>
/// <param name="subname">A name of intermediate array inserted before the value.</param>
public static void AddVariable(this PhpArray /*!*/ array, string name, string value, string subname = null)
{
Debug.Assert(array != null);
Debug.Assert(name != null);
Debug.Assert(value != null);
IntStringKey key;
// current left and right square brace positions:
int left, right;
// checks pattern {var_name}[{key1}][{key2}]...[{keyn}] where var_name is [^[]* and keys are [^]]*:
left = name.IndexOf('[');
if (left > 0 && left < name.Length - 1 && (right = name.IndexOf(']', left + 1)) >= 0)
{
// the variable name is a key to the "array", dots are replaced by underscores in top-level name:
key = new IntStringKey(EncodeTopLevelName(name.Substring(0, left)));
// ensures that all [] operators in the chain except for the last one are applied on an array:
for (; ;)
{
// adds a level keyed by "key":
array = EnsureItemArray(array, key);
// adds a level keyed by "subname" (once only):
if (subname != null)
{
array = EnsureItemArray(array, Convert.StringToArrayKey(subname));
subname = null;
}
// next key:
key = Convert.StringToArrayKey(name.Substring(left + 1, right - left - 1)); // key can be a number
// breaks if ']' is not followed by '[':
left = right + 1;
if (left == name.Length || name[left] != '[')
{
break;
}
// the next right brace:
right = name.IndexOf(']', left + 1);
}
if (key.Equals(IntStringKey.EmptyStringKey))
{
array.AddValue(PhpValue.Create(value));
}
else
{
array.SetItemValue(key, PhpValue.Create(value));
}
}
else
{
// no array pattern in variable name, "name" is a top-level key:
key = new IntStringKey(EncodeTopLevelName(name));
// inserts a subname on the next level:
if (subname != null)
{
EnsureItemArray(array, key).SetItemValue(Convert.StringToArrayKey(subname), PhpValue.Create(value));
}
else
{
array.SetItemValue(key, PhpValue.Create(value));
}
}
}