/// <summary>
/// Constructor.
/// </summary>
public EditArrayVariable(ParserItem _item, Request _request)
{
// Set title, icon, resizable
Title = Director.Properties.Resources.EditVariable;
Icon = Image.FromResource (DirectorImages.EDIT_CONTENT_ICON);
Resizable = false;
// Set variables
ActiveItem = _item;
ActiveRequest = _request;
// Widht height
Width = 520;
Height = 330;
// Init components
_initializeComponents ();
// Add buttons
Buttons.Add (new DialogButton (Director.Properties.Resources.ConfirmInput, Command.Ok));
Buttons.Add (new DialogButton (Director.Properties.Resources.Cancel, Command.Cancel));
// Parse data
ParseData ();
}
void DrawColorProperty(string key, string value, Color c, ParserItem item, bool comma = true)
{
if (CanDraw)
{
double newX = X;
if (key != null) {
var Item = CreateTextLayout (string.Format ("\"{0}\" : ", key));
CTX.DrawTextLayout (Item, X, Y);
newX = X + Item.GetSize ().Width;
}
if (DrawVisibleProperty == false) {
CTX.DrawTextLayout (CreateTextLayout(value), newX, Y);
return;
}
// Create value
var Value = new TextLayout();
Value.Font.WithSize(10);
Value.Text = value;
var s = Value.GetSize();
var rect = new Rectangle(newX, Y, s.Width, s.Height).Inflate(0.2, 0.2);
CreateClickableItem((double) newX, (double)Y, s.Width, s.Height, item);
CTX.SetColor(c);
CTX.Rectangle(rect);
CTX.Fill();
CTX.SetLineWidth(1);
CTX.Stroke();
CTX.SetColor(Colors.White);
CTX.DrawTextLayout(Value, newX, Y);
CTX.SetColor(Colors.Black);
if (comma)
{
var end = CreateTextLayout(",");
CTX.DrawTextLayout(end, newX + s.Width + 8, Y);
}
}
}
void DrawArrayProperty(string key, ParserItem it)
{
if (CanDraw) {
// Create Key Item
var KeyItem = CreateTextLayout(string.Format("\"{0}\"", key));
// Create rectangle
var rect = new Rectangle (X, Y, KeyItem.GetSize().Width, KeyItem.GetSize().Height).Inflate (0.2, 0.2);
// Clikable item
CreateClickableItem((double) X, (double)Y, KeyItem.GetSize().Width, KeyItem.GetSize().Height, it);
// Draw rect
CTX.SetColor(Colors.DarkGreen);
CTX.Rectangle(rect);
CTX.Fill();
CTX.SetLineWidth(1);
CTX.Stroke();
CTX.SetColor(Colors.White);
CTX.DrawTextLayout(KeyItem, X, Y);
CTX.SetColor(Colors.Black);
// Draw [
double newX = X + KeyItem.GetSize ().Width + 0.2;
CTX.DrawTextLayout (CreateTextLayout (" : ["), newX, Y);
}
}
/// <summary>
/// Create clickable item on target destination!
/// </summary>
private void CreateClickableItem(double corX, double corY, double corWidth, double corHeight, ParserItem item)
{
if (hscroll != null && vscroll != null)
{
corX -= hscroll.Value;
corY -= vscroll.Value;
}
// Not clickable (out of range)
if (corX < 0 || corY < 0)
return;
// Create Item
CanvasItems.Add(
new ClickableResponseItem()
{
X = corX, Y = corY, Height = corY + corHeight, Width = corX + corWidth, Item = item
}
);
}
/// <summary>
/// This auxiliary method tries to parse passed string arguments and generate next integer value of particular sequence according to specification.
/// </summary>
/// <param name="function_arguments"></param>
/// <param name="errors"></param>
/// <param name="item"></param>
/// <param name="parsing_offset"></param>
/// <param name="customVariables"></param>
/// <returns></returns>
private string applyRequestFunctionSequence(string[] function_arguments, List<ParserError> errors, ParserItem item, int parsing_offset, Dictionary<string, string> customVariables)
{
bool new_sequence = false; // this variable determines whether we do need to create new custom variable to hold current value of the sequence
int current_value = Int32.MinValue;
// check number of arguments
if (function_arguments.Length != 4)
{
errors.Add(new ParserError(item.line, item.position + parsing_offset, ERR_MSG_INVALID_NUMBER_OF_ARGUMENTS, SOURCE_TEMPLATE));
return null;
}
// parse arguments
int original_errors_count = errors.Count;
int start = parse_integer_function_argument(function_arguments[0], errors, item, parsing_offset); // parse first argument
int end = function_arguments[1].Length>0 ? parse_integer_function_argument(function_arguments[1], errors, item, parsing_offset) : Int32.MinValue; // parse second argument (might be empty)
int increment = parse_integer_function_argument(function_arguments[2], errors, item, parsing_offset); // parse third argument
// parse fourth argument
if (!customVariables.ContainsKey(function_arguments[3]))
{
new_sequence = true; // unknown custom variable - set up a new custom variable containing start of the sequence below
}
else
{
// value of custom variable passed in 4th argument must contain integer value
current_value = parse_integer_function_argument(customVariables[function_arguments[3]], errors, item, parsing_offset);
}
if (errors.Count > original_errors_count) // if some new errors occured during parsing of the arguments ...
return null; // ... stop evaluating and leave this code block
// generate a new number of this sequence based on passed arguments and return it as a string
int next_sequence_number;
if (new_sequence)
{
customVariables[function_arguments[3]] = Convert.ToString(start, culture);
next_sequence_number = start;
}
else
{
if (end == Int32.MinValue)
{
// second argument was not provided - simply add increment to current value
next_sequence_number = current_value + increment;
}
else
{
// second argument was provided - add increment to current value, but loop it from start if it exceeds end
next_sequence_number = current_value + increment;
if ((increment > 0 && next_sequence_number > end) || (increment < 0 && next_sequence_number < end))
next_sequence_number = start; // reset sequence
}
customVariables[function_arguments[3]] = Convert.ToString(next_sequence_number, culture); // save new sequence value for next request
}
return "" + next_sequence_number;
}
/// <summary>
/// This auxiliary method tries to parse passed string arguments and generate random integer according to specification.
/// </summary>
/// <param name="function_arguments"></param>
/// <param name="errors"></param>
/// <param name="item"></param>
/// <param name="parsing_offset"></param>
/// <returns></returns>
private string applyRequestFunctionRandInt(string[] function_arguments, List<ParserError> errors, ParserItem item, int parsing_offset)
{
// check number of arguments
if (function_arguments.Length != 2)
{
errors.Add(new ParserError(item.line, item.position + parsing_offset, ERR_MSG_INVALID_NUMBER_OF_ARGUMENTS, SOURCE_TEMPLATE));
return null;
}
// parse arguments
int original_errors_count = errors.Count;
int min_range = parse_integer_function_argument(function_arguments[0], errors, item, parsing_offset); // parse first argument
int max_range = parse_integer_function_argument(function_arguments[1], errors, item, parsing_offset); // parse second argument
if (errors.Count > original_errors_count) // if some new errors occured during parsing of the arguments ...
return null; // ... stop evaluating and leave this code block
// check whether first arg. is smaller or equal that the second one
if (min_range > max_range)
{
errors.Add(new ParserError(item.line, item.position + parsing_offset, string.Format(ERR_MSG_ARGUMENTS_WRONG_SIZED, 1, function_arguments[1], 2, function_arguments[2]), SOURCE_TEMPLATE));
return null;
}
// generate random integer between the value of first and second argument and return it as a string
return "" + this.random.Next(min_range, max_range + 1);
}
/// <summary>
/// This auxiliary method tries to convert string argument to integer and if it fails to do so error is added to the errors list.
/// </summary>
/// <param name="argument"></param>
/// <param name="errors"></param>
/// <param name="item"></param>
/// <param name="parsing_offset"></param>
/// <returns></returns>
private int parse_integer_function_argument(string argument, List<ParserError> errors, ParserItem item, int parsing_offset)
{
int result = Int32.MinValue;
try
{
result = Convert.ToInt32(argument, culture);
}
catch (FormatException)
{
errors.Add(new ParserError(item.line, item.position + parsing_offset, string.Format(ERR_MSG_ARGUMENT_NOT_INTEGER, argument), SOURCE_TEMPLATE));
}
catch (OverflowException)
{
errors.Add(new ParserError(item.line, item.position + parsing_offset, string.Format(ERR_MSG_ARGUMENT_TOO_BIG, argument), SOURCE_TEMPLATE));
}
return result;
}
private void PrintArray(string key, ParserItem it, List<ParserItem> list, bool comma = false)
{
string commaStr = (comma) ? "," : "";
bool changed = false;
// PRint item?
if (DrawArray && DrawVisibleProperty) {
DrawArrayProperty (key, it);
DrawVisibleProperty = false;
changed = true;
} else if (key != null)
{
DrawText(string.Format("\"{0}\" : ", key) + "[");
}
else
DrawText("[");
X += 20;
NextLine();
var lastItem = list[list.Count - 1];
foreach (var item in list)
{
DrawParserItem(null, item, item != lastItem);
}
X -= 20;
DrawText("]" + commaStr);
if (changed)
DrawVisibleProperty = true;
}
private ParserItem parseCompareRules(ParserItem item, Dictionary<string, string> customVariables, List<ParserError> errors)
{
string value = (string)item.value;
int original_error_count = errors.Count;
// find out all positions of MAIN_SYNTAX_CHARACTERs in the string value
List<int> occurrences = new List<int>();
int index = 0;
do
{
index = value.IndexOf(MAIN_SYNTAX_CHARACTER, index); // ... so, find all occurrences of function characters in given string value
if (index != -1)
{
if (index == 0 || value[index - 1] != ESCAPE_CHARACTER) // either first character or unescaped one
occurrences.Add(index);
index++;
}
} while (index != -1);
List<int> original_occurrences = new List<int>(occurrences); // when we notify the user about parser error we want to refer to the positions from original template
// take care of possibility that we got a plain string without any MAIN_SYNTAX_CHARACTERs
if (occurrences.Count == 0)
{
item.comp_def = new ParserCompareDefinition();
item.comp_def.type = typeof(string);
item.comp_def.value = value;
return item;
}
// take care of possible errors
if (occurrences.Count < 5) // not enough MAIN_SYNTAX_CHARACTERs
errors.Add(new ParserError(item.line, item.position + original_occurrences.Last(), string.Format(ERR_MSG_EXPECTING_CHARACTER, MAIN_SYNTAX_CHARACTER), SOURCE_TEMPLATE));
if (occurrences.Count > 5) // too many MAIN_SYNTAX_CHARACTERs
errors.Add(new ParserError(item.line, item.position + original_occurrences[5], string.Format(ERR_MSG_INVALID_CHARACTER, MAIN_SYNTAX_CHARACTER), SOURCE_TEMPLATE));
if (occurrences.First() != 0) // illegal characters before first MAIN_SYNTAX_CHARACTER
errors.Add(new ParserError(item.line, item.position, string.Format(ERR_MSG_INVALID_CHARACTER, value[0]), SOURCE_TEMPLATE));
if (occurrences.Last() != value.Length - 1) // illegal characters after last MAIN_SYNTAX_CHARACTER
errors.Add(new ParserError(item.line, item.position + original_occurrences.Last(), string.Format(ERR_MSG_INVALID_CHARACTER, value[original_occurrences.Last() + 1]), SOURCE_TEMPLATE));
// if there are any new syntax errors we can't parse this item - return it without any change
if (errors.Count > original_error_count)
return item;
// now we can replace all escaped MAIN_SYNTAX_CHARACTER for the real ones
// note: all concerned indices in occurrences list must be modified accordingly, since ESCAPE_CHARACTERs are being taken
// out from the original string
index = 0;
do
{
index = value.IndexOf("" + ESCAPE_CHARACTER + MAIN_SYNTAX_CHARACTER, index); // find escaped MAIN_SYNTAX_CHARACTER
if (index != -1)
{
value = value.Remove(index, 1); // remove ESCAPE_CHARACTER from the string
// all occurrences with further placement than index of escaped character must be corrected by one
shift_occurrences(occurrences, index, -1);
index++;
}
} while (index != -1);
//
// retrieve individual values between MAIN_SYNTAX_CHARACTERs and save them to the item structure
//
string type = value.Substring(occurrences[0] + 1, occurrences[1] - occurrences[0] - 1); // type
string[] ops = value.Substring(occurrences[1] + 1, occurrences[2] - occurrences[1] - 1).Split(new char[] {RESPONSE_OPERATION_SEPARATOR}, StringSplitOptions.RemoveEmptyEntries); // operation with possible modifiers
string val = value.Substring(occurrences[2] + 1, occurrences[3] - occurrences[2] - 1); // value
string var = value.Substring(occurrences[3] + 1, occurrences[4] - occurrences[3] - 1); // variable
ParserCompareDefinition pcd = new ParserCompareDefinition();
// type
if (type.Length > 0)
{
switch (type)
{
case RESPONSE_TYPE_STRING:
pcd.type = typeof(string);
break;
case RESPONSE_TYPE_INTEGER:
pcd.type = typeof(int);
break;
case RESPONSE_TYPE_FLOAT:
pcd.type = typeof(float);
break;
case RESPONSE_TYPE_BOOLEAN:
pcd.type = typeof(bool);
break;
case RESPONSE_TYPE_OBJECT:
pcd.type = typeof(object);
break;
case RESPONSE_TYPE_ARRAY:
pcd.type = typeof(Array);
break;
default: // urecognized type
errors.Add(new ParserError(item.line, item.position + 1, string.Format(ERR_MSG_UNKNOWN_TYPE, type), SOURCE_TEMPLATE));
break;
}
}
// operation + modifiers
bool use_var = false; // use variable modifier
bool if_present = false; // if present modifier
string op = null; // operation
if (ops.Length > 0)
{
foreach (string ops_item in ops)
{
switch (ops_item)
{
case RESPONSE_OPERATION_MODIFIER_USE_VARIABLE:
use_var = true;
break;
case RESPONSE_OPERATION_MODIFIER_IF_PRESENT:
if_present = true;
break;
case RESPONSE_OPERATION_EQUAL:
if (RESPONSE_OPERATION_EQUAL_ALLOWED_TYPES.Contains(type))
op = ops_item;
else
errors.Add(new ParserError(item.line, item.position + original_occurrences[1] + 1, string.Format(ERR_MSG_OPERATION_DOESNT_SUPPORT_TYPE, ops_item, type), SOURCE_TEMPLATE));
break;
case RESPONSE_OPERATION_NOT_EQUAL:
if (RESPONSE_OPERATION_NOT_EQUAL_ALLOWED_TYPES.Contains(type))
op = ops_item;
else
errors.Add(new ParserError(item.line, item.position + original_occurrences[1] + 1, string.Format(ERR_MSG_OPERATION_DOESNT_SUPPORT_TYPE, ops_item, type), SOURCE_TEMPLATE));
break;
case RESPONSE_OPERATION_LESS_THAN:
if (RESPONSE_OPERATION_LESS_THAN_ALLOWED_TYPES.Contains(type))
op = ops_item;
else
errors.Add(new ParserError(item.line, item.position + original_occurrences[1] + 1, string.Format(ERR_MSG_OPERATION_DOESNT_SUPPORT_TYPE, ops_item, type), SOURCE_TEMPLATE));
break;
case RESPONSE_OPERATION_LESS_THAN_OR_EQUAL:
if (RESPONSE_OPERATION_LESS_THAN_OR_EQUAL_ALLOWED_TYPES.Contains(type))
op = ops_item;
else
errors.Add(new ParserError(item.line, item.position + original_occurrences[1] + 1, string.Format(ERR_MSG_OPERATION_DOESNT_SUPPORT_TYPE, ops_item, type), SOURCE_TEMPLATE));
break;
case RESPONSE_OPERATION_GREATER_THAN:
if (RESPONSE_OPERATION_GREATER_THAN_ALLOWED_TYPES.Contains(type))
op = ops_item;
else
errors.Add(new ParserError(item.line, item.position + original_occurrences[1] + 1, string.Format(ERR_MSG_OPERATION_DOESNT_SUPPORT_TYPE, ops_item, type), SOURCE_TEMPLATE));
break;
case RESPONSE_OPERATION_GREATER_THAN_OR_EQUAL:
if (RESPONSE_OPERATION_GREATER_THAN_OR_EQUAL_ALLOWED_TYPES.Contains(type))
op = ops_item;
else
errors.Add(new ParserError(item.line, item.position + original_occurrences[1] + 1, string.Format(ERR_MSG_OPERATION_DOESNT_SUPPORT_TYPE, ops_item, type), SOURCE_TEMPLATE));
break;
case RESPONSE_OPERATION_MATCHING_REGEXP_PATTERN:
if (RESPONSE_OPERATION_MATCHING_REGEXP_PATTERN_ALLOWED_TYPES.Contains(type))
op = ops_item;
else
errors.Add(new ParserError(item.line, item.position + original_occurrences[1] + 1, string.Format(ERR_MSG_OPERATION_DOESNT_SUPPORT_TYPE, ops_item, type), SOURCE_TEMPLATE));
break;
default: // urecognized operation type
errors.Add(new ParserError(item.line, item.position + original_occurrences[1] + 1, string.Format(ERR_MSG_UNKNOWN_OPERATION, ops_item), SOURCE_TEMPLATE));
break;
}
}
// assign operation and modifiers into parser compare definition object
pcd.use_variable = use_var;
pcd.if_present = if_present;
pcd.operation = op;
// if operation was specified, type must be also specified
if (pcd.type == null && pcd.operation != null)
errors.Add(new ParserError(item.line, item.position + 1, ERR_MSG_MISING_TYPE_FOR_OPERATION, SOURCE_TEMPLATE));
}
// value
if (val.Length > 0)
{
if (use_var) // do we want to replace variable name in value field by it's actual value?
{
if (customVariables.ContainsKey(val)) // search for desired custom variable ...
{
// try to convert value of parsed variable name to desired type; if that is not possible add an error
pcd.value = convertToDesiredType(pcd.type, customVariables[val], item, errors, original_occurrences);
}
else // ... and add error if it doesn't exist
errors.Add(new ParserError(item.line, item.position + original_occurrences[2] + 1, string.Format(ERR_MSG_UNKNOWN_CUSTOM_VARIABLE, val), SOURCE_TEMPLATE));
}
else
{
// try to convert parsed value to desired type; if that is not possible add an error
pcd.value = convertToDesiredType(pcd.type, val, item, errors, original_occurrences);
}
}
else
{
// in case that every part of possible information from syntax string is missing, let's presume empty string
if (occurrences[4] - occurrences[0] == 4)
pcd.value = "";
}
// variable
if (var.Length > 0)
pcd.var_name = var;
// if there are any new syntax errors we can't parse this item - return it without any change
if (errors.Count > original_error_count)
return item;
// assign newly constructed parser compare definition object into item and return the item
item.comp_def = pcd;
return item;
}
/// <summary>
/// This auxiliary method tries to convert string argument to float and if it fails to do so error is added to the errors list.
/// </summary>
/// <param name="argument"></param>
/// <param name="errors"></param>
/// <param name="item"></param>
/// <param name="parsing_offset"></param>
/// <returns></returns>
private float parse_float_function_argument(string argument, List<ParserError> errors, ParserItem item, int parsing_offset)
{
float result = Single.MinValue;
try
{
result = Convert.ToSingle(argument, culture);
}
catch (FormatException)
{
errors.Add(new ParserError(item.line, item.position + parsing_offset, string.Format(ERR_MSG_ARGUMENT_NOT_FLOAT, argument), SOURCE_TEMPLATE));
}
catch (OverflowException)
{
errors.Add(new ParserError(item.line, item.position + parsing_offset, string.Format(ERR_MSG_ARGUMENT_TOO_BIG, argument), SOURCE_TEMPLATE));
}
return result;
}
private object convertToDesiredType(System.Type desired_type, string value, ParserItem item, List<ParserError> errors, List<int> original_occurrences)
{
object result = null;
if (desired_type == null)
{
// type was not provided => we will try to assume the closest type possible
try
{
result = Convert.ToInt32(value, culture); // is it integer?
}
catch (Exception)
{
try
{
result = Convert.ToSingle(value, culture); // is it float?
}
catch (Exception)
{
if (value == RESPONSE_BOOLEAN_CONVERSION_TYPE_DEFINITION_TRUE || value == RESPONSE_BOOLEAN_CONVERSION_TYPE_DEFINITION_FALSE) // is it boolean?
{
if (value == RESPONSE_BOOLEAN_CONVERSION_TYPE_DEFINITION_TRUE)
result = true;
else
result = false;
}
else
{
result = value; // let's assume that it's string
}
}
}
}
else if (desired_type == typeof(string))
{
// we don't need to convert anything here, just assign the value
result = value;
}
else if (desired_type == typeof(int) || desired_type == typeof(Array))
{
// try to convert value to integer
try
{
result = Convert.ToInt32(value, culture);
}
catch (FormatException)
{
errors.Add(new ParserError(item.line, item.position + original_occurrences[2] + 1, string.Format(ERR_MSG_ARGUMENT_NOT_INTEGER, value), SOURCE_TEMPLATE));
}
catch (OverflowException)
{
errors.Add(new ParserError(item.line, item.position + original_occurrences[2] + 1, string.Format(ERR_MSG_ARGUMENT_TOO_BIG, value), SOURCE_TEMPLATE));
}
}
else if (desired_type == typeof(float))
{
// try to convert value to float
try
{
result = Convert.ToSingle(value, culture);
}
catch (FormatException)
{
errors.Add(new ParserError(item.line, item.position + original_occurrences[2] + 1, string.Format(ERR_MSG_ARGUMENT_NOT_FLOAT, value), SOURCE_TEMPLATE));
}
catch (OverflowException)
{
errors.Add(new ParserError(item.line, item.position + original_occurrences[2] + 1, string.Format(ERR_MSG_ARGUMENT_TOO_BIG, value), SOURCE_TEMPLATE));
}
}
else if (desired_type == typeof(bool))
{
if (value == RESPONSE_BOOLEAN_CONVERSION_TYPE_DEFINITION_TRUE || value == RESPONSE_BOOLEAN_CONVERSION_TYPE_DEFINITION_FALSE)
{
if (value == RESPONSE_BOOLEAN_CONVERSION_TYPE_DEFINITION_TRUE)
result = true;
else
result = false;
}
else
{
errors.Add(new ParserError(item.line, item.position + original_occurrences[2] + 1, string.Format(ERR_MSG_VALUE_UNCONVERTABLE_TO_TYPE, value, desired_type), SOURCE_TEMPLATE));
}
}
else if (desired_type == typeof(object))
{
try
{
result = deserialize(value, errors, SOURCE_TEMPLATE);
}
catch (JsonException)
{
errors.Add(new ParserError(item.line, item.position + original_occurrences[2] + 1, string.Format(ERR_MSG_VALUE_UNCONVERTABLE_TO_TYPE, value, desired_type), SOURCE_TEMPLATE));
}
}
else
{
errors.Add(new ParserError(item.line, item.position + 1, string.Format(ERR_MSG_UNKNOWN_TYPE, desired_type), SOURCE_TEMPLATE));
}
return result;
}
public static Dictionary<string, ParserItem> deserialize(string template, List<ParserError> errors, string source)
{
Dictionary<string, ParserItem> result = new Dictionary<string, ParserItem>();
JsonTextReader reader = new JsonTextReader(new StringReader(template));
List<object> indent_path = new List<object>();
string found_key = null;
try
{
while (reader.Read())
{
if (reader.TokenType == JsonToken.PropertyName)
{
found_key = (string)reader.Value;
}
// simple type
if (
reader.TokenType == JsonToken.String ||
reader.TokenType == JsonToken.Integer ||
reader.TokenType == JsonToken.Float ||
reader.TokenType == JsonToken.Boolean ||
reader.TokenType == JsonToken.Null
)
{
if (indent_path.Count > 0)
{
ParserItem item = new ParserItem(reader.LineNumber, reader.LinePosition, reader.Value);
if (indent_path.Last() is Dictionary<string, ParserItem>)
{
// we are parsing element of object on this level
((Dictionary<string, ParserItem>)indent_path.Last()).Add(found_key, item);
found_key = null;
}
else
{
// we are parsing element of array on this level
((List<ParserItem>)indent_path.Last()).Add(item);
}
}
else
errors.Add(new ParserError(reader.LineNumber, reader.LinePosition, string.Format(ERR_MSG_EXPECTING_CHARACTER, "{"), source));
}
if (reader.TokenType == JsonToken.StartObject)
{
if (indent_path.Count == 0)
{
indent_path.Add(result);
}
else
{
Dictionary<string, ParserItem> sub_node = new Dictionary<string, ParserItem>(); // create new node for new object
ParserItem item = new ParserItem(reader.LineNumber, reader.LinePosition, sub_node);
if (indent_path.Last() is Dictionary<string, ParserItem>)
{
// we are parsing element of object on this level
((Dictionary<string, ParserItem>)indent_path.Last()).Add(found_key, item);
found_key = null;
}
else
{
// we are parsing element of array on this level
((List<ParserItem>)indent_path.Last()).Add(item);
}
indent_path.Add(sub_node); // add new active saving location to the end of this list
}
}
if (reader.TokenType == JsonToken.EndObject)
{
if (indent_path.Count > 0)
indent_path.RemoveAt(indent_path.Count - 1); // remove last element
else // too many of closing parentheses
errors.Add(new ParserError(reader.LineNumber, reader.LinePosition, string.Format(ERR_MSG_EXPECTING_CHARACTER, "{"), source));
}
if (reader.TokenType == JsonToken.StartArray)
{
List<ParserItem> sub_node = new List<ParserItem>(); // create new node for new array
ParserItem item = new ParserItem(reader.LineNumber, reader.LinePosition, sub_node);
if (indent_path.Last() is Dictionary<string, ParserItem>)
{
// we are parsing element of object on this level
((Dictionary<string, ParserItem>)indent_path.Last()).Add(found_key, item);
found_key = null;
}
else
{
// we are parsing element of array on this level
((List<ParserItem>)indent_path.Last()).Add(item);
}
indent_path.Add(sub_node); // add new active saving location to the end of this list
}
if (reader.TokenType == JsonToken.EndArray)
{
if (indent_path.Count > 0)
indent_path.RemoveAt(indent_path.Count - 1); // remove last element
else // too many of closing parentheses
errors.Add(new ParserError(reader.LineNumber, reader.LinePosition, string.Format(ERR_MSG_EXPECTING_CHARACTER, "["), source));
}
}
// too many of opening parentheses
if (indent_path.Count > 0)
{
if (indent_path.Last() is Dictionary<string, ParserItem>)
errors.Add(new ParserError(reader.LineNumber, reader.LinePosition, string.Format(ERR_MSG_EXPECTING_CHARACTER, "}"), source));
else
errors.Add(new ParserError(reader.LineNumber, reader.LinePosition, string.Format(ERR_MSG_EXPECTING_CHARACTER, "]"), source));
}
}
catch (JsonException e)
{
// an error occured during deserializon => basic syntax of json template is wrong
errors.Add(createError(e.Message, source));
}
return result;
}
private bool compareParserItems(ParserItem template_item, ParserItem response_item, Dictionary<string, string> customVariables, List<ParserError> errors)
{
// preprocess string type which might need to be measured by it's length
if (template_item.comp_def.type == typeof(string) && template_item.comp_def.operation != RESPONSE_OPERATION_EQUAL && template_item.comp_def.operation != RESPONSE_OPERATION_NOT_EQUAL && template_item.comp_def.operation != RESPONSE_OPERATION_MATCHING_REGEXP_PATTERN && template_item.comp_def.operation != null)
{
template_item.comp_def.value = template_item.comp_def.value != null ? ((string)template_item.comp_def.value).Length : 0;
response_item.value = ((string)response_item.value).Length;
}
// unify values of int and float family type members on the same type
if (template_item.comp_def.value != null && RESPONSE_COMPARISON_FAMILY_TYPE_INTEGERS.Contains(template_item.comp_def.value.GetType()))
template_item.comp_def.value = Convert.ToInt32(template_item.comp_def.value, culture);
if (response_item.value != null && RESPONSE_COMPARISON_FAMILY_TYPE_INTEGERS.Contains(response_item.value.GetType()))
response_item.value = Convert.ToInt32(response_item.value, culture);
if (template_item.comp_def.value != null && RESPONSE_COMPARISON_FAMILY_TYPE_FLOATS.Contains(template_item.comp_def.value.GetType()))
template_item.comp_def.value = Convert.ToSingle(template_item.comp_def.value, culture);
if (response_item.value != null && RESPONSE_COMPARISON_FAMILY_TYPE_FLOATS.Contains(response_item.value.GetType()))
response_item.value = Convert.ToSingle(response_item.value, culture);
// response value might have been parsed as integer type, but we still want to be able to compare it with float type template value
if (RESPONSE_COMPARISON_FAMILY_TYPE_INTEGERS.Contains(response_item.value.GetType()) &&
(
(
template_item.comp_def.value != null &&
RESPONSE_COMPARISON_FAMILY_TYPE_FLOATS.Contains(template_item.comp_def.value.GetType())
) ||
RESPONSE_COMPARISON_FAMILY_TYPE_FLOATS.Contains(template_item.comp_def.type)
)
)
{
response_item.value = Convert.ToSingle(response_item.value, culture);
}
// store value in custom variable if requested
if (template_item.comp_def.var_name != null)
customVariables[template_item.comp_def.var_name] = Convert.ToString(response_item.value, culture);
// strict comparison
if (template_item.comp_def.type == null && template_item.comp_def.operation == null && template_item.comp_def.value != null)
{
if (template_item.comp_def.value.Equals(response_item.value))
return true;
else
{
errors.Add(new ParserError(template_item.line, template_item.position, string.Format(ERR_MSG_COMPARE_VALUES, template_item.comp_def.value, response_item.value), SOURCE_TEMPLATE));
return false;
}
}
// type comparison
if (template_item.comp_def.type != null && template_item.comp_def.operation == null && template_item.comp_def.value == null)
{
if (template_item.comp_def.type == response_item.value.GetType())
return true;
else
{
errors.Add(new ParserError(template_item.line, template_item.position, string.Format(ERR_MSG_COMPARE_TYPES, template_item.comp_def.type, response_item.value.GetType()), SOURCE_TEMPLATE));
return false;
}
}
// combined comparison (strict + type)
if (template_item.comp_def.type != null && template_item.comp_def.operation == null && template_item.comp_def.value != null)
{
if ((template_item.comp_def.value.Equals(response_item.value)) && (template_item.comp_def.type == response_item.value.GetType()))
return true;
else
{
if (template_item.comp_def.value.Equals(response_item.value))
errors.Add(new ParserError(template_item.line, template_item.position, string.Format(ERR_MSG_COMPARE_TYPES, template_item.comp_def.type, response_item.value.GetType()), SOURCE_TEMPLATE));
else
errors.Add(new ParserError(template_item.line, template_item.position, string.Format(ERR_MSG_COMPARE_VALUES, template_item.comp_def.value, response_item.value), SOURCE_TEMPLATE));
return false;
}
}
// specific comparison (operation)
if (template_item.comp_def.type != null && template_item.comp_def.operation != null && template_item.comp_def.value != null)
{
// check if type of both items is the same
if (template_item.comp_def.value.GetType() != response_item.value.GetType())
{
errors.Add(new ParserError(template_item.line, template_item.position, string.Format(ERR_MSG_COMPARE_TYPES, template_item.comp_def.type, response_item.value.GetType()), SOURCE_TEMPLATE));
return false;
}
// evaluate comparison with desired operator
bool result = false;
switch (template_item.comp_def.operation)
{
case RESPONSE_OPERATION_EQUAL:
result = template_item.comp_def.value.Equals(response_item.value);
break;
case RESPONSE_OPERATION_NOT_EQUAL:
result = !template_item.comp_def.value.Equals(response_item.value);
break;
case RESPONSE_OPERATION_LESS_THAN:
if (template_item.comp_def.value is float)
result = (float)response_item.value < (float)template_item.comp_def.value;
else
result = (int)response_item.value < (int)template_item.comp_def.value;
break;
case RESPONSE_OPERATION_LESS_THAN_OR_EQUAL:
if (template_item.comp_def.value is float)
result = (float)response_item.value <= (float)template_item.comp_def.value;
else
result = (int)response_item.value <= (int)template_item.comp_def.value;
break;
case RESPONSE_OPERATION_GREATER_THAN:
if (template_item.comp_def.value is float)
result = (float)response_item.value > (float)template_item.comp_def.value;
else
result = (int)response_item.value > (int)template_item.comp_def.value;
break;
case RESPONSE_OPERATION_GREATER_THAN_OR_EQUAL:
if (template_item.comp_def.value is float)
result = (float)response_item.value >= (float)template_item.comp_def.value;
else
result = (int)response_item.value >= (int)template_item.comp_def.value;
break;
case RESPONSE_OPERATION_MATCHING_REGEXP_PATTERN:
try
{
// try to match regular expression
Match match = Regex.Match((string)response_item.value, (string)template_item.comp_def.value);
result = match.Success;
}
catch (Exception e)
{
errors.Add(new ParserError(template_item.line, template_item.position, string.Format(ERR_MSG_REGEX_PARSER, e.Message), SOURCE_TEMPLATE));
}
break;
default: // urecognized operation type
errors.Add(new ParserError(template_item.line, template_item.position, string.Format(ERR_MSG_UNKNOWN_OPERATION, template_item.comp_def.operation), SOURCE_TEMPLATE));
break;
}
// evaluate result after comparison
if (result)
return true;
else
{
errors.Add(new ParserError(template_item.line, template_item.position, string.Format(ERR_MSG_COMPARE_OPERATION, response_item.value, template_item.comp_def.operation, template_item.comp_def.value), SOURCE_TEMPLATE));
return false;
}
}
return false;
}
// Draw item from parser:
void DrawParserItem(string key, ParserItem item, bool comma = false)
{
string commaStr = (comma) ? "," : "";
if (item.value is Dictionary<string, ParserItem>)
{
if (key != null)
{
DrawText(string.Format("\"{0}\" : ", key) + "{");
} else
DrawText("{");
X += 20;
NextLine();
DrawJson((Dictionary<string, ParserItem>)item.value);
X -= 20;
DrawText("}" + commaStr);
}
else if (item.value is System.String)
{
DrawProperty(key, string.Format("\"{0}\"", (string) item.value), item, comma);
}
else if (item.value is System.Int64 || item.value is System.Int32 || item.value is System.Double)
{
DrawProperty(key, (item.value + "").Replace(',', '.'), item, comma);
}
else if (item.value is System.Boolean)
{
DrawProperty(key, ((System.Boolean) item.value) ? "true" : "false", item, comma);
}
else if (item.value == null)
{
DrawProperty(key, "null", item, comma);
}
else if (item.value is List<ParserItem>)
{
PrintArray(key, item, (List<ParserItem>)item.value, comma);
}
else
{
DrawText(item.value.GetType().ToString());
}
NextLine();
}
private ParserItem applyFunctions(ParserItem item, Dictionary<string, string> customVariables, List<ParserError> errors)
{
string value = (string)item.value;
// we need to replace variable names surrounded by VARIABLE_CHARACTERs with the actual variables ...
List<int> var_occurrences = new List<int>();
int index = 0;
do
{
index = value.IndexOf(VARIABLE_CHARACTER, index); // ... so, find all occurrences of variable characters in given string value
if (index != -1)
{
if (index == 0 || value[index - 1] != ESCAPE_CHARACTER) // either first character or unescaped one
var_occurrences.Add(index);
index++;
}
} while (index != -1);
List<int> original_var_occurrences = new List<int>(var_occurrences); // when we notify the user about parser error we want to refer to the positions from original template
// we need to replace functions surrounded by MAIN_SYNTAX_CHARACTERs with their evaluated result ...
List<int> fn_occurrences = new List<int>();
index = 0;
do
{
index = value.IndexOf(MAIN_SYNTAX_CHARACTER, index); // ... so, find all occurrences of function characters in given string value
if (index != -1)
{
if (index == 0 || value[index - 1] != ESCAPE_CHARACTER) // either first character or unescaped one
fn_occurrences.Add(index);
index++;
}
} while (index != -1);
List<int> original_fn_occurrences = new List<int>(fn_occurrences); // when we notify the user about parser error we want to refer to the positions from original template
if (var_occurrences.Count % 2 != 0)
{
// last VARIABLE_CHARACTER is missing it's pair ...
errors.Add(new ParserError(item.line, item.position + original_var_occurrences.Last(), ERR_MSG_MISSING_VARIABLE_CHARACTER, SOURCE_TEMPLATE)); // ... notify the user ...
var_occurrences.RemoveAt(var_occurrences.Count - 1); // ... and do not try to replace this one in future
}
if (fn_occurrences.Count % 2 != 0)
{
// last MAIN_SYNTAX_CHARACTER is missing it's pair ...
errors.Add(new ParserError(item.line, item.position + original_fn_occurrences.Last(), ERR_MSG_MISSING_MAIN_SYNTAX_CHARACTER, SOURCE_TEMPLATE)); // ... notify the user ...
fn_occurrences.RemoveAt(fn_occurrences.Count - 1); // ... and do not try to replace this one in future
}
// now when we have identified all variable occurences, we can replace all escaped VARIABLE_CHARACTER for the real ones
// note: all concerned indices in occurrences list must be modified accordingly, since ESCAPE_CHARACTERs are being taken
// out from the original string
index = 0;
do
{
index = value.IndexOf("" + ESCAPE_CHARACTER + VARIABLE_CHARACTER, index); // find escaped VARIABLE_CHARACTER
if (index != -1)
{
value = value.Remove(index, 1); // remove ESCAPE_CHARACTER from the string
// all occurrences with further placement than index of escaped character must be corrected by one
shift_occurrences(var_occurrences, index, -1);
shift_occurrences(fn_occurrences, index, -1);
index++;
}
} while (index != -1);
// now when we have identified all function occurences, we can replace all escaped MAIN_SYNTAX_CHARACTER for the real ones
// note: all concerned indices in occurrences list must be modified accordingly, since ESCAPE_CHARACTERs are being taken
// out from the original string
index = 0;
do
{
index = value.IndexOf("" + ESCAPE_CHARACTER + MAIN_SYNTAX_CHARACTER, index); // find escaped MAIN_SYNTAX_CHARACTER
if (index != -1)
{
value = value.Remove(index, 1); // remove ESCAPE_CHARACTER from the string
// all occurrences with further placement than index of escaped character must be corrected by one
shift_occurrences(var_occurrences, index, -1);
shift_occurrences(fn_occurrences, index, -1);
index++;
}
} while (index != -1);
// here we need to find out whether VARIABLE_CHARACTER and MAIN_SYNTAX_CHARACTER pairs are not overlaping each other in forbidden way
// RULES:
// - MAIN_SYNTAX_CHARACTER pair can have multiple VARIABLE_CHARACTER pairs inside it
// - VARIABLE_CHARACTER pair can not any MAIN_SYNTAX_CHARACTER pairs inside it
// - MAIN_SYNTAX_CHARACTER pair can not overlap with VARIABLE_CHARACTER pair and vice versa
if (var_occurrences.Count > 0 && fn_occurrences.Count > 0) // both pair lists must be non empty for this check to make any sense
{
int var_list_position = 0;
int fn_list_position = 0;
bool inside_var = false; // whether current position is inside MAIN_SYNTAX_CHARACTER pair or not
bool inside_fn = false; // whether current position is inside VARIABLE_CHARACTER pair or not
while (var_list_position < var_occurrences.Count && fn_list_position < fn_occurrences.Count)
{
// current position in both pair lists is not at the end
if (var_occurrences[var_list_position] < fn_occurrences[fn_list_position])
{
inside_var = !inside_var;
var_list_position++;
}
else
{
if (inside_var && !inside_fn)
{
// there is MAIN_SYNTAX_CHARACTER inside VARIABLE_CHARACTERs pair - raise an error
errors.Add(new ParserError(item.line, item.position + fn_occurrences[fn_list_position], ERR_MSG_FN_INSIDE_VAR, SOURCE_TEMPLATE));
// this syntax error is too serious for evaluation to continue - return original item without any change
return item;
}
inside_fn = !inside_fn;
fn_list_position++;
}
}
// upon leaving this while statement, we can be sure that we made it through at least one of the lists
// the rest does not matter now, since there can't be any more overlaps or bad placements
}
// try to match variable names with dictionary of custom variables
// notify the user if match is not found
for (int i = 0; i < var_occurrences.Count; i += 2)
{
string variable_name = value.Substring(var_occurrences[i] + 1, var_occurrences[i + 1] - var_occurrences[i] - 1); // grab variable name without VARIABLE_CHARACTERs on edges
if (customVariables.ContainsKey(variable_name)) // is this variable defined in passed custom variables?
{
// replace variable name by it's value
value = value.Remove(var_occurrences[i], var_occurrences[i + 1] - var_occurrences[i] + 1); // remove variable name from original string inc. VARIABLE_CHARACTERs on edges
value = value.Insert(var_occurrences[i], customVariables[variable_name]); // insert actual value of that variable on the original position
// after we changed length of original string by replacing variable name by it's value, we need to change all occurrence indices accordingly
shift_occurrences(var_occurrences, var_occurrences[i], customVariables[variable_name].Length - variable_name.Length - 2);
shift_occurrences(fn_occurrences, var_occurrences[i], customVariables[variable_name].Length - variable_name.Length - 2);
}
else
{
// create new error
errors.Add(new ParserError(item.line, item.position + original_var_occurrences[i], string.Format(ERR_MSG_UNKNOWN_CUSTOM_VARIABLE, variable_name), SOURCE_TEMPLATE));
}
}
// update value of the item
item.value = value;
// now, we are ready to find and evaluate functions defined in this string
for (int i = 0; i < fn_occurrences.Count; i += 2)
{
string function_string = value.Substring(fn_occurrences[i] + 1, fn_occurrences[i + 1] - fn_occurrences[i] - 1); // grab the function name and it's parameters without MAIN_SYNTAX_CHARACTERs on edges
int left_parenthesis_position = function_string.IndexOf(REQUEST_FN_LEFT_PARENTHESIS);
int right_parenthesis_position = function_string.IndexOf(REQUEST_FN_RIGHT_PARENTHESIS);
// handle all possible syntactical errors
if (left_parenthesis_position == -1) // no left parenthesis
errors.Add(new ParserError(item.line, item.position + fn_occurrences[i], string.Format(ERR_MSG_EXPECTING_CHARACTER, REQUEST_FN_LEFT_PARENTHESIS), SOURCE_TEMPLATE));
if (right_parenthesis_position == -1) // no right parenthesis
errors.Add(new ParserError(item.line, item.position + fn_occurrences[i], string.Format(ERR_MSG_EXPECTING_CHARACTER, REQUEST_FN_RIGHT_PARENTHESIS), SOURCE_TEMPLATE));
if (left_parenthesis_position != -1 && function_string.IndexOf(REQUEST_FN_LEFT_PARENTHESIS, left_parenthesis_position) == -1) // too many left parentheses
errors.Add(new ParserError(item.line, item.position + fn_occurrences[i] + left_parenthesis_position, string.Format(ERR_MSG_INVALID_CHARACTER, REQUEST_FN_LEFT_PARENTHESIS), SOURCE_TEMPLATE));
if (right_parenthesis_position != -1 && function_string.IndexOf(REQUEST_FN_RIGHT_PARENTHESIS, right_parenthesis_position) == -1) // too many right parentheses
errors.Add(new ParserError(item.line, item.position + fn_occurrences[i] + right_parenthesis_position, string.Format(ERR_MSG_INVALID_CHARACTER, REQUEST_FN_RIGHT_PARENTHESIS), SOURCE_TEMPLATE));
if (left_parenthesis_position == 0) // no function name before left parenthesis
errors.Add(new ParserError(item.line, item.position + fn_occurrences[i], ERR_MSG_MISSING_FN_NAME, SOURCE_TEMPLATE));
if (right_parenthesis_position != function_string.Length - 1) // aditional characters after right parenthesis
errors.Add(new ParserError(item.line, item.position + fn_occurrences[i] + right_parenthesis_position, ERR_MSG_UNRECOGNIZED_CHARS_AFTER_FN, SOURCE_TEMPLATE));
if (left_parenthesis_position > right_parenthesis_position) // swapped parentheses
errors.Add(new ParserError(item.line, item.position + fn_occurrences[i] + right_parenthesis_position, ERR_MSG_SWAPPED_PARENTHESES, SOURCE_TEMPLATE));
// if all basic syntactical conditions are met, we can continue
if (left_parenthesis_position > 0 && left_parenthesis_position < right_parenthesis_position && right_parenthesis_position == function_string.Length - 1)
{
string function_name = function_string.Substring(0, left_parenthesis_position);
string[] function_arguments = function_string.Substring(left_parenthesis_position + 1, right_parenthesis_position - left_parenthesis_position - 1).Split(REQUEST_FN_ARGUMENT_SEPARATOR);
for (int j = 0; j < function_arguments.Length; j++)
function_arguments[j] = function_arguments[j].Trim(); // trim any white spaces from all arguments
string function_result = null;
bool type_result = false; // if the entire "value" string is occupied only by one function, we will type the result from string to desired variable type (integer of float)
// try to recognize the function name
switch (function_name)
{
case REQUEST_FN_RAND_INT:
function_result = applyRequestFunctionRandInt(function_arguments, errors, item, fn_occurrences[i]);
if (fn_occurrences.Count == 2 && fn_occurrences[0] == 0 && fn_occurrences[1] == value.Length - 1) // the entire "value" string is occupied only by one function
type_result = true; // we will type the result to integer
break;
case REQUEST_FN_RAND_FLOAT:
function_result = applyRequestFunctionRandFloat(function_arguments, errors, item, fn_occurrences[i]);
if (fn_occurrences.Count == 2 && fn_occurrences[0] == 0 && fn_occurrences[1] == value.Length - 1) // the entire "value" string is occupied only by one function
type_result = true; // we will type the result to float
break;
case REQUEST_FN_RAND_STRING:
function_result = applyRequestFunctionRandString(function_arguments, errors, item, fn_occurrences[i]);
break;
case REQUEST_FN_SEQUENCE:
function_result = applyRequestFunctionSequence(function_arguments, errors, item, fn_occurrences[i], customVariables);
if (fn_occurrences.Count == 2 && fn_occurrences[0] == 0 && fn_occurrences[1] == value.Length - 1) // the entire "value" string is occupied only by one function
type_result = true; // we will type the result to integer
break;
default:
errors.Add(new ParserError(item.line, item.position + fn_occurrences[i], ERR_MSG_UNRECOGNIZED_FN, SOURCE_TEMPLATE));
break;
}
// if there were no difficulties during function evaluation, we can continue
if (function_result != null)
{
// replace entire function string by the function result
value = value.Remove(fn_occurrences[i], fn_occurrences[i + 1] - fn_occurrences[i] + 1); // remove entire function string from original string inc. MAIN_SYNTAX_CHARACTERs on edges
value = value.Insert(fn_occurrences[i], function_result); // insert function result on the original position
// after we changed length of original string by replacing entire function string by function result, we need to change all occurrence indices accordingly
shift_occurrences(fn_occurrences, fn_occurrences[i], function_result.Length - function_string.Length - 2);
if (type_result) // the entire "value" string is occupied only by one function, we must type the result to desired one
{
switch (function_name)
{
case REQUEST_FN_RAND_INT:
item.value = Convert.ToInt32(value, culture); // type to integer
break;
case REQUEST_FN_RAND_FLOAT:
item.value = Convert.ToSingle(value, culture); // type to float
break;
case REQUEST_FN_SEQUENCE:
item.value = Convert.ToInt32(value, culture); // type to integer
break;
default:
item.value = value;
break;
}
}
else // don't type result to differen type and assign regular string
{
item.value = value;
}
}
}
}
// return modified item
return item;
}
void DrawProperty(string key, string value, ParserItem it, bool comma = true)
{
DrawColorProperty (key, value, Colors.DarkBlue, it, comma);
}
/// <summary>
/// This auxiliary method tries to parse passed string arguments and generate random float according to specification.
/// </summary>
/// <param name="function_arguments"></param>
/// <param name="errors"></param>
/// <param name="item"></param>
/// <param name="parsing_offset"></param>
/// <returns></returns>
private string applyRequestFunctionRandFloat(string[] function_arguments, List<ParserError> errors, ParserItem item, int parsing_offset)
{
// check number of arguments
if (function_arguments.Length != 3)
{
errors.Add(new ParserError(item.line, item.position + parsing_offset, ERR_MSG_INVALID_NUMBER_OF_ARGUMENTS, SOURCE_TEMPLATE));
return null;
}
// parse arguments
int original_errors_count = errors.Count;
float min_range = parse_float_function_argument(function_arguments[0], errors, item, parsing_offset); // parse first argument
float max_range = parse_float_function_argument(function_arguments[1], errors, item, parsing_offset); // parse second argument
int precision = parse_integer_function_argument(function_arguments[2], errors, item, parsing_offset); // parse third argument
if (errors.Count > original_errors_count) // if some new errors occured during parsing of the arguments ...
return null; // ... stop evaluating and leave this code block
// check whether first arg. is smaller or equal that the second one
if (min_range > max_range)
{
errors.Add(new ParserError(item.line, item.position + parsing_offset, string.Format(ERR_MSG_ARGUMENTS_WRONG_SIZED, 1, function_arguments[1], 2, function_arguments[2]), SOURCE_TEMPLATE));
return null;
}
// generate random float between the value of first and second argument with desired number of fractional digits and return it as a string
return Convert.ToString(Math.Round((this.random.NextDouble() * (max_range - min_range) + min_range), precision), culture);
}
/// <summary>
/// Draw parser item
/// </summary>
private void DrawParserItem(string key, ParserItem item, bool comma, int spaces)
{
AppendSpaces(spaces);
if (key != null)
Result += string.Format("\"{0}\" : ", key);
if (item.value == null)
{
Result += "null";
}
else if (item.value is Dictionary<string, ParserItem>)
{
PrintObject((Dictionary<string, ParserItem>)item.value, spaces);
}
else if (item.value is List<ParserItem>)
{
Result += "[" + ENDL;
DrawArray((List<ParserItem>) item.value, spaces + 1);
AppendSpaces(spaces);
Result += "]";
}
else if (item.value is System.Int64 || item.value is System.Int32 || item.value is System.Double)
{
Result += (item.value + "").Replace(',', '.');
}
else
{
Result += string.Format("\"{0}\"", item.value.ToString());
}
// Comma?
if (comma)
Result += ",";
// Endline
Result += ENDL;
}
/// <summary>
/// This auxiliary method tries to parse passed string arguments and generate random string according to specification.
/// </summary>
/// <param name="function_arguments"></param>
/// <param name="errors"></param>
/// <param name="item"></param>
/// <param name="parsing_offset"></param>
/// <returns></returns>
private string applyRequestFunctionRandString(string[] function_arguments, List<ParserError> errors, ParserItem item, int parsing_offset)
{
string character_pool = ""; // this string will eventually contain all desired characters from which we will generate resulting random string
// check number of arguments
if (function_arguments.Length != 3)
{
errors.Add(new ParserError(item.line, item.position + parsing_offset, ERR_MSG_INVALID_NUMBER_OF_ARGUMENTS, SOURCE_TEMPLATE));
return null;
}
// parse arguments
int original_errors_count = errors.Count;
int min_length = parse_integer_function_argument(function_arguments[0], errors, item, parsing_offset); // parse first argument
int max_length = parse_integer_function_argument(function_arguments[1], errors, item, parsing_offset); // parse second argument
foreach (char ch in function_arguments[2]) // parse third argument
{
if (!REQUEST_FN_RAND_STRING_GROUP_SYMBOLS.Contains(ch)) // each character of third argument must be recognized as symbol for group of characters
{
// symbol for group of characters was not recognized - add an error
errors.Add(new ParserError(item.line, item.position + parsing_offset, String.Format(ERR_MSG_ARGUMENT_INVALID, function_arguments[2]), SOURCE_TEMPLATE));
break;
}
else
{
// symbol for group of characters was recognized - add set of characters represented by this symbol to the character pool
character_pool += REQUEST_FN_RAND_STRING_GROUPS[Array.FindIndex(REQUEST_FN_RAND_STRING_GROUP_SYMBOLS, x => x == ch)];
}
}
if (errors.Count > original_errors_count) // if some new errors occured during parsing of the arguments ...
return null; // ... stop evaluating and leave this code block
// check whether first arg. is smaller or equal that the second one
if (min_length > max_length)
{
errors.Add(new ParserError(item.line, item.position + parsing_offset, string.Format(ERR_MSG_ARGUMENTS_WRONG_SIZED, 1, function_arguments[1], 2, function_arguments[2]), SOURCE_TEMPLATE));
return null;
}
// generate random string between the lenght of first and second argument with desired type of characters and return it as a string
int lenght = this.random.Next(min_length, max_length + 1);
StringBuilder sb = new StringBuilder();
for (int i = 0; i < lenght; i++)
sb.Append(character_pool[this.random.Next(character_pool.Length)]);
return sb.ToString();
}