mirror of
https://git.do.srb2.org/STJr/UltimateZoneBuilder.git
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861 lines
25 KiB
C#
Executable file
861 lines
25 KiB
C#
Executable file
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#region ================== Copyright (c) 2007 Pascal vd Heiden
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/*
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* Copyright (c) 2007 Pascal vd Heiden, www.codeimp.com
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* This program is released under GNU General Public License
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#endregion
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#region ================== Namespaces
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using System;
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using System.IO;
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using System.Text;
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using System.Globalization;
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using System.Collections.Generic;
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#endregion
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namespace CodeImp.DoomBuilder.IO
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{
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public sealed class UniversalParser
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{
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#region ================== Constants
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// Path seperator
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//public const string DEFAULT_SEPERATOR = ".";
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// Allowed characters in a key
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private const string KEY_CHARACTERS = "abcdefghijklmnopqrstuvwxyz0123456789_";
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// Parse mode constants
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private const int PM_NOTHING = 0;
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private const int PM_ASSIGNMENT = 1;
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private const int PM_NUMBER = 2;
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private const int PM_STRING = 3;
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private const int PM_KEYWORD = 4;
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// Error strings
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private const string ERROR_KEYMISSING = "Missing key name in assignment or scope.";
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private const string ERROR_KEYCHARACTERS = "Invalid characters in key name.";
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//private const string ERROR_ASSIGNINVALID = "Invalid assignment. Missing a previous terminator symbol?";
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private const string ERROR_VALUEINVALID = "Invalid value in assignment. Missing a previous terminator symbol?";
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private const string ERROR_VALUETOOBIG = "Value too big.";
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private const string ERROR_KEYWITHOUTVALUE = "Key has no value assigned.";
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private const string ERROR_KEYWORDUNKNOWN = "Unknown keyword in assignment. Missing a previous terminator symbol?";
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#endregion
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#region ================== Variables
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// Error result
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private int cpErrorResult;
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private string cpErrorDescription = "";
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private int cpErrorLine;
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// Warnings
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private List<string> warnings = new List<string>();
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// Configuration root
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private UniversalCollection root;
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private const string newline = "\n";
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private StringBuilder key; //mxd
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private StringBuilder val; //mxd
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private Dictionary<string, UniversalEntry> matches; //mxd
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// Settings
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private bool strictchecking = true;
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#endregion
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#region ================== Properties
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// Properties
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public int ErrorResult { get { return cpErrorResult; } }
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public string ErrorDescription { get { return cpErrorDescription; } }
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public int ErrorLine { get { return cpErrorLine; } }
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public UniversalCollection Root { get { return root; } }
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public bool StrictChecking { get { return strictchecking; } set { strictchecking = value; } }
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public bool HasWarnings { get { return warnings.Count != 0; } }
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public List<string> Warnings { get { return warnings; } }
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#endregion
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#region ================== Constructor / Destructor
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// Constructor
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public UniversalParser()
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{
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// Standard new configuration
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NewConfiguration();
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// We have no destructor
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GC.SuppressFinalize(this);
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}
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// Constructor to load a file immediately
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public UniversalParser(string filename)
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{
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// Load configuration from file
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LoadConfiguration(filename);
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// We have no destructor
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GC.SuppressFinalize(this);
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}
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#endregion
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#region ================== Private Methods
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// This returns a string added with escape characters
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private static string EscapedString(string str)
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{
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// Replace the \ with \\ first!
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str = str.Replace("\\", "\\\\");
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str = str.Replace(newline, "\\n");
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str = str.Replace("\r", "\\r");
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str = str.Replace("\t", "\\t");
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str = str.Replace("\"", "\\\"");
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// Return result
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return str;
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}
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// This raises an error
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private void RaiseError(int line, string description)
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{
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// Raise error
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cpErrorResult = 1;
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cpErrorDescription = description;
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cpErrorLine = line + 1; //mxd
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}
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// This validates a given key and sets
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// error properties if key is invalid and errorline > -1
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private bool ValidateKey(string key, int errorline)
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{
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// Check if key is an empty string
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if(key.Length == 0)
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{
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// ERROR: Missing key name in statement
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if(errorline > -1) RaiseError(errorline, ERROR_KEYMISSING);
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return false;
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}
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//Only when strict checking
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if(strictchecking)
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{
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// Check if all characters are valid
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string keylc = key.ToLowerInvariant(); //mxd. UDMF key names are case-insensitive
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foreach(char c in keylc)
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{
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if(KEY_CHARACTERS.IndexOf(c) == -1)
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{
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// ERROR: Invalid characters in key name
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if(errorline > -1) RaiseError(errorline, ERROR_KEYCHARACTERS);
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return false;
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}
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}
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}
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// Key is valid
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return true;
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}
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// This parses a structure in the given data starting
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// from the given pos and line and updates pos and line.
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private UniversalCollection InputStructure(ref string[] data, ref int pos, ref int line, bool topLevel)
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{
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int pm = PM_NOTHING; // current parse mode
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key.Remove(0, key.Length);
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val.Remove(0, val.Length);
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bool escape = false; // escape sequence?
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bool endofstruct = false; // true as soon as this level struct ends
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UniversalCollection cs = new UniversalCollection();
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// Go through all of the data until
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// the end or until the struct closes
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// or when an arror occurred
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while((cpErrorResult == 0) && (endofstruct == false))
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{
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// Get current character
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if(line == data.Length - 1) break;
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if(pos > data[line].Length - 1)
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{
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pos = 0;
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line++;
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if(string.IsNullOrEmpty(data[line])) continue; //mxd. Skip empty lines here so correct line number is displayed on errors
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}
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char c = data[line][pos]; // current data character
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// ================ What parse mode are we at?
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if(pm == PM_NOTHING)
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{
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// Now check what character this is
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switch(c)
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{
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case '{': // Begin of new struct
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// Validate key
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string s = key.ToString().Trim();
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if(ValidateKey(s, line))
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{
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// Next character
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pos++;
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// Parse this struct and add it
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cs.Add(new UniversalEntry(s.ToLowerInvariant(), InputStructure(ref data, ref pos, ref line, false)));
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// Check the last character
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pos--;
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// Reset the key
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key.Remove(0, key.Length);
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}
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// Leave switch
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break;
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case '}': // End of this struct
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// Stop parsing in this struct
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endofstruct = true;
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// Leave the loop
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break;
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case '=': // Assignment
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// Validate key
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if(ValidateKey(key.ToString().Trim(), line))
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{
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// Now parsing assignment
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pm = PM_ASSIGNMENT;
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}
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// Leave switch
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break;
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case ';': // Terminator
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// Validate key
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if(ValidateKey(key.ToString().Trim(), line))
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{
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// Error: No value
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RaiseError(line, ERROR_KEYWITHOUTVALUE);
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}
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// Leave switch
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break;
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case '\n': // New line
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// Count the line
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line++;
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pos = -1;
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// Add this to the key as a space.
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// Spaces are not allowed, but it will be trimmed
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// when its the first or last character.
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key.Append(" ");
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// Leave switch
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break;
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case '\\': // Possible comment
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case '/':
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// Check for the line comment //
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if(data[line].Substring(pos, 2) == "//")
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{
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// Skip everything on this line
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pos = -1;
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// Have next line?
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if(line < data.Length - 1) line++;
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}
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// Check for the block comment /* */
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else if(data[line].Substring(pos, 2) == "/*")
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{
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// Block comment closes on the same line?.. (mxd)
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int np = data[line].IndexOf("*/", pos);
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if(np > -1)
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{
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pos = np + 1;
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}
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else
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{
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// Find the next closing block comment
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line++;
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while((np = data[line].IndexOf("*/", 0)) == -1)
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{
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if(line == data.Length - 1) break;
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line++;
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}
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// Closing block comment found?
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if(np > -1)
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{
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// Skip everything in this block
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pos = np + 1;
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}
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}
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}
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// Leave switch
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break;
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default: // Everything else
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if(!topLevel && pos == 0)
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{
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while(matches.ContainsKey(data[line]))
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{
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cs.Add(matches[data[line]].Key, matches[data[line]].Value);
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line++;
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pos = -1;
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}
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}
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// Add character to key
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if(pos != -1) key.Append(c);
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// Leave switch
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break;
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}
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}
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// ================ Parsing an assignment
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else if(pm == PM_ASSIGNMENT)
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{
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// Check for string opening
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if(c == '\"')
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{
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// Now parsing string
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pm = PM_STRING; //numbers
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}
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// Check for numeric character numbers
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else if(Configuration.NUMBERS2.IndexOf(c) > -1)
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{
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// Now parsing number
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pm = PM_NUMBER;
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// Go one byte back, because this
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// byte is part of the number!
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pos--;
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}
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// Check for new line
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else if(c == '\n')
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{
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// Count the new line
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line++;
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}
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// Check if assignment ends
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else if(c == ';')
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{
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// End of assignment
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pm = PM_NOTHING;
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// Remove this if it causes problems
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key.Remove(0, key.Length);
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val.Remove(0, val.Length);
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}
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// Otherwise (if not whitespace) it will be a keyword
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else if((c != ' ') && (c != '\t'))
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{
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// Now parsing a keyword
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pm = PM_KEYWORD;
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// Go one byte back, because this
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// byte is part of the keyword!
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pos--;
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}
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}
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// ================ Parsing a number
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else if(pm == PM_NUMBER)
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{
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// Check if number ends here
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if(c == ';')
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{
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// Hexadecimal?
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string s = val.ToString();
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if((s.Length > 2) && s.StartsWith("0x", StringComparison.OrdinalIgnoreCase))
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{
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// Convert to int
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try
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{
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// Convert to value
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int ival = Convert.ToInt32(s.Substring(2).Trim(), 16);
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// Add it to struct
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UniversalEntry entry = new UniversalEntry(key.ToString().Trim().ToLowerInvariant(), ival);
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cs.Add(entry);
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if(!matches.ContainsKey(data[line])) matches.Add(data[line], entry);
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}
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catch(OverflowException)
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{
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// Too large for Int32, try Int64
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try
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{
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// Convert to value
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long lval = Convert.ToInt64(s.Substring(2).Trim(), 16);
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// Add it to struct
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UniversalEntry entry = new UniversalEntry(key.ToString().Trim().ToLowerInvariant(), lval);
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cs.Add(entry);
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if(!matches.ContainsKey(data[line])) matches.Add(data[line], entry);
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}
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catch(OverflowException)
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{
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// Too large for Int64, return error
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RaiseError(line, ERROR_VALUETOOBIG);
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}
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catch(FormatException)
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{
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// ERROR: Invalid value in assignment
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RaiseError(line, ERROR_VALUEINVALID + "\n\nUnrecognized token: \"" + s.Trim() + "\"");
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}
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}
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catch(FormatException)
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{
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// ERROR: Invalid value in assignment
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RaiseError(line, ERROR_VALUEINVALID + "\n\nUnrecognized token: \"" + s.Trim() + "\"");
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}
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}
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// Floating point?
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//mxd. Can be in scientific notation (like "1E-06")
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else if(s.IndexOf('.') > -1 || s.ToLowerInvariant().Contains("e-"))
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{
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double fval = 0;
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// Convert to float (remove the f first)
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try { fval = Convert.ToDouble(s.Trim(), CultureInfo.InvariantCulture); }
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catch(FormatException)
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{
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// ERROR: Invalid value in assignment
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RaiseError(line, ERROR_VALUEINVALID + "\n\nUnrecognized token: \"" + s.Trim() + "\"");
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}
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// Add it to struct
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UniversalEntry entry = new UniversalEntry(key.ToString().Trim().ToLowerInvariant(), fval);
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cs.Add(entry);
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if(!matches.ContainsKey(data[line])) matches.Add(data[line], entry);
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}
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else
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{
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// Convert to int
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try
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{
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// Convert to value
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int ival = Convert.ToInt32(s.Trim(), CultureInfo.InvariantCulture);
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// Add it to struct
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UniversalEntry entry = new UniversalEntry(key.ToString().Trim().ToLowerInvariant(), ival);
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cs.Add(entry);
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if(!matches.ContainsKey(data[line])) matches.Add(data[line], entry);
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}
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catch(OverflowException)
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{
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// Too large for Int32, try Int64
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try
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{
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// Convert to value
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long lval = Convert.ToInt64(s.Trim(), CultureInfo.InvariantCulture);
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// Add it to struct
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UniversalEntry entry = new UniversalEntry(key.ToString().Trim().ToLowerInvariant(), lval);
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cs.Add(entry);
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if(!matches.ContainsKey(data[line])) matches.Add(data[line], entry);
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}
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catch(OverflowException)
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{
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// Too large for Int64, return error
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RaiseError(line, ERROR_VALUETOOBIG);
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}
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catch(FormatException)
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{
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// ERROR: Invalid value in assignment
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RaiseError(line, ERROR_VALUEINVALID + "\n\nUnrecognized token: \"" + s.Trim() + "\"");
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}
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}
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catch(FormatException)
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{
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// ERROR: Invalid value in assignment
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RaiseError(line, ERROR_VALUEINVALID + "\n\nUnrecognized token: \"" + s.Trim() + "\"");
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}
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}
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// Reset key and value
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key.Remove(0, key.Length);
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val.Remove(0, val.Length);
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// End of assignment
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pm = PM_NOTHING;
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}
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// Check for new line
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else if(c == '\n')
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{
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// Count the new line
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line++;
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pos = -1;
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}
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// Everything else is part of the value
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else
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{
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val.Append(c);
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}
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}
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// ================ Parsing a string
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else if(pm == PM_STRING)
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{
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// Check if in an escape sequence
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if(escape)
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{
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// What character?
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switch(c)
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{
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case '\\': val.Append('\\'); break;
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case 'n': val.Append(newline); break;
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case '\"': val.Append('\"'); break;
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case 'r': val.Append('\r'); break;
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case 't': val.Append('\t'); break;
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default:
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// Is it a number?
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if(Configuration.NUMBERS.IndexOf(c) > -1)
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{
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int vv = 0;
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char vc = '0';
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// Convert the next 3 characters to a number
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string v = data[line].Substring(pos, 3);
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try { vv = Convert.ToInt32(v.Trim(), CultureInfo.InvariantCulture); }
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catch(FormatException)
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{
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// ERROR: Invalid value in assignment
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RaiseError(line, ERROR_VALUEINVALID + "\n\nUnrecognized token: \"" + v.Trim() + "\"");
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}
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// Convert the number to a char
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try { vc = Convert.ToChar(vv, CultureInfo.InvariantCulture); }
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catch(FormatException)
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{
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// ERROR: Invalid value in assignment
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RaiseError(line, ERROR_VALUEINVALID + "\n\nUnrecognized token: \"" + v.Trim() + "\"");
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}
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// Add the char
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val.Append(vc);
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}
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else
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{
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// Add the character as it is
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val.Append(c);
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}
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// Leave switch
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break;
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}
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// End of escape sequence
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escape = false;
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}
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else
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{
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// Check for sequence start
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if(c == '\\')
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{
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// Next character is of escape sequence
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escape = true;
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}
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// Check if string ends
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else if(c == '\"')
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{
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// Add string to struct
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UniversalEntry entry = new UniversalEntry(key.ToString().Trim().ToLowerInvariant(), val.ToString());
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cs.Add(entry);
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if(!matches.ContainsKey(data[line])) matches.Add(data[line], entry);
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// End of assignment
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pm = PM_ASSIGNMENT;
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// Reset key and value
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key.Remove(0, key.Length);
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|
val.Remove(0, val.Length);
|
|
}
|
|
// Check for new line
|
|
else if(c == '\n')
|
|
{
|
|
// Count the new line
|
|
line++;
|
|
pos = -1;
|
|
}
|
|
// Everything else is just part of string
|
|
else
|
|
{
|
|
// Add to value
|
|
val.Append(c);
|
|
}
|
|
}
|
|
}
|
|
// ================ Parsing a keyword
|
|
else if(pm == PM_KEYWORD)
|
|
{
|
|
// Check if keyword ends
|
|
if(c == ';')
|
|
{
|
|
// Add to the struct depending on the keyword
|
|
switch(val.ToString().Trim().ToLowerInvariant())
|
|
{
|
|
case "true":
|
|
// Add boolean true
|
|
UniversalEntry t = new UniversalEntry(key.ToString().Trim().ToLowerInvariant(), true);
|
|
cs.Add(t);
|
|
if(!matches.ContainsKey(data[line])) matches.Add(data[line], t);
|
|
break;
|
|
|
|
case "false":
|
|
// Add boolean false
|
|
UniversalEntry f = new UniversalEntry(key.ToString().Trim().ToLowerInvariant(), false);
|
|
cs.Add(f);
|
|
if(!matches.ContainsKey(data[line])) matches.Add(data[line], f);
|
|
break;
|
|
|
|
case "nan":
|
|
// Add float value
|
|
UniversalEntry nan = new UniversalEntry(key.ToString().Trim().ToLowerInvariant(), double.NaN);
|
|
// Do not add NaN, just drop it with a warning
|
|
// cs.Add(nan);
|
|
warnings.Add("UDMF map data line " + (line+1) + ": value of field " + key.ToString().Trim().ToLowerInvariant() + " has a value of NaN (not a number). Field is being dropped permanently.");
|
|
if (!matches.ContainsKey(data[line])) matches.Add(data[line], nan);
|
|
break;
|
|
|
|
default:
|
|
// Unknown keyword
|
|
RaiseError(line, ERROR_KEYWORDUNKNOWN + "\n\nUnrecognized token: \"" + val.ToString().Trim() + "\"");
|
|
break;
|
|
}
|
|
|
|
// End of assignment
|
|
pm = PM_NOTHING;
|
|
|
|
// Reset key and value
|
|
key.Remove(0, key.Length);
|
|
val.Remove(0, val.Length);
|
|
}
|
|
// Check for new line
|
|
else if(c == '\n')
|
|
{
|
|
// Count the new line
|
|
line++;
|
|
pos = -1;
|
|
}
|
|
// Everything else is just part of keyword
|
|
else
|
|
{
|
|
// Add to value
|
|
val.Append(c);
|
|
}
|
|
}
|
|
|
|
// Next character
|
|
pos++;
|
|
}
|
|
|
|
// Return the parsed result
|
|
return cs;
|
|
}
|
|
|
|
|
|
// This will create a data structure from the given object
|
|
private string OutputStructure(UniversalCollection cs, int level, string newline, bool whitespace)
|
|
{
|
|
string leveltabs = "";
|
|
string spacing = "";
|
|
StringBuilder db = new StringBuilder("");
|
|
|
|
// Check if this ConfigStruct is not empty
|
|
if(cs.Count > 0)
|
|
{
|
|
// Create whitespace
|
|
if(whitespace)
|
|
{
|
|
for(int i = 0; i < level; i++) leveltabs += "\t";
|
|
spacing = " ";
|
|
}
|
|
|
|
// Go for each item
|
|
for(int i = 0; i < cs.Count; i++)
|
|
{
|
|
// Check if the value if of collection type
|
|
if(cs[i].Value is UniversalCollection)
|
|
{
|
|
UniversalCollection c = (UniversalCollection)cs[i].Value;
|
|
|
|
// Output recursive structure
|
|
if(whitespace) { db.Append(leveltabs); db.Append(newline); }
|
|
db.Append(leveltabs); db.Append(cs[i].Key);
|
|
if(!string.IsNullOrEmpty(c.Comment))
|
|
{
|
|
if(whitespace) db.Append("\t");
|
|
db.Append("// " + c.Comment);
|
|
}
|
|
db.Append(newline);
|
|
db.Append(leveltabs); db.Append("{"); db.Append(newline);
|
|
db.Append(OutputStructure(c, level + 1, newline, whitespace));
|
|
db.Append(leveltabs); db.Append("}"); db.Append(newline);
|
|
//if(whitespace) { db.Append(leveltabs); db.Append(newline); } //mxd. Let's save a few Kbs by using single line breaks...
|
|
}
|
|
// Check if the value is of boolean type
|
|
else if(cs[i].Value is bool)
|
|
{
|
|
db.Append(leveltabs); db.Append(cs[i].Key); db.Append(spacing); db.Append("="); db.Append(spacing);
|
|
db.Append((bool)cs[i].Value ? "true;" : "false;"); db.Append(newline);
|
|
}
|
|
// Check if value is of float type
|
|
else if(cs[i].Value is float)
|
|
{
|
|
// Output the value as float (3 decimals)
|
|
float f = (float)cs[i].Value;
|
|
db.Append(leveltabs); db.Append(cs[i].Key); db.Append(spacing); db.Append("=");
|
|
db.Append(spacing); db.Append(f.ToString("0.000", CultureInfo.InvariantCulture)); db.Append(";"); db.Append(newline);
|
|
}
|
|
//mxd. Check if value is of double type
|
|
else if(cs[i].Value is double)
|
|
{
|
|
// Output the value as double (7 decimals)
|
|
double d = (double)cs[i].Value;
|
|
db.Append(leveltabs); db.Append(cs[i].Key); db.Append(spacing); db.Append("=");
|
|
db.Append(spacing); db.Append(d.ToString("0.0##############", CultureInfo.InvariantCulture)); /* db.Append(d.ToString("0.0000000", CultureInfo.InvariantCulture)); */ db.Append(";"); db.Append(newline);
|
|
}
|
|
// Check if value is of other numeric type
|
|
else if(cs[i].Value.GetType().IsPrimitive)
|
|
{
|
|
// Output the value unquoted
|
|
db.Append(leveltabs); db.Append(cs[i].Key); db.Append(spacing); db.Append("=");
|
|
db.Append(spacing); db.Append(String.Format(CultureInfo.InvariantCulture, "{0}", cs[i].Value)); db.Append(";"); db.Append(newline);
|
|
}
|
|
else
|
|
{
|
|
// Output the value with quotes and escape characters
|
|
db.Append(leveltabs); db.Append(cs[i].Key); db.Append(spacing); db.Append("=");
|
|
db.Append(spacing); db.Append("\""); db.Append(EscapedString(cs[i].Value.ToString())); db.Append("\";"); db.Append(newline);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Return the structure
|
|
return db.ToString();
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region ================== Public Methods
|
|
|
|
// This clears the last error
|
|
public void ClearError()
|
|
{
|
|
// Clear error
|
|
cpErrorResult = 0;
|
|
cpErrorDescription = "";
|
|
cpErrorLine = 0;
|
|
}
|
|
|
|
|
|
// This creates a new configuration
|
|
public void NewConfiguration()
|
|
{
|
|
// Create new configuration
|
|
root = new UniversalCollection();
|
|
}
|
|
|
|
|
|
// This will save the current configuration to the specified file
|
|
public bool SaveConfiguration(string filename) { return SaveConfiguration(filename, "\r\n", true); }
|
|
public bool SaveConfiguration(string filename, string newline) { return SaveConfiguration(filename, newline, true); }
|
|
public bool SaveConfiguration(string filename, string newline, bool whitespace)
|
|
{
|
|
// Kill the file if it exists
|
|
if(File.Exists(filename)) File.Delete(filename);
|
|
|
|
// Open file stream for writing
|
|
FileStream fstream = File.OpenWrite(filename);
|
|
|
|
// Create output structure and write to file
|
|
string data = OutputConfiguration(newline, whitespace);
|
|
byte[] baData= Encoding.ASCII.GetBytes(data);
|
|
fstream.Write(baData, 0, baData.Length);
|
|
fstream.Flush();
|
|
fstream.Close();
|
|
|
|
// Return true when done, false when errors occurred
|
|
return cpErrorResult == 0;
|
|
}
|
|
|
|
|
|
// This will output the current configuration as a string
|
|
public string OutputConfiguration() { return OutputConfiguration("\r\n", true); }
|
|
public string OutputConfiguration(string newline) { return OutputConfiguration(newline, true); }
|
|
public string OutputConfiguration(string newline, bool whitespace)
|
|
{
|
|
// Simply return the configuration structure as string
|
|
return OutputStructure(root, 0, newline, whitespace);
|
|
}
|
|
|
|
|
|
// This will load a configuration from file
|
|
public bool LoadConfiguration(string filename)
|
|
{
|
|
// Check if the file is missing
|
|
if(!File.Exists(filename))
|
|
{
|
|
throw(new FileNotFoundException("File not found \"" + filename + "\"", filename));
|
|
}
|
|
else
|
|
{
|
|
// Load the file contents
|
|
List<string> data = new List<string>(100);
|
|
using(FileStream stream = File.OpenRead(filename))
|
|
{
|
|
StreamReader reader = new StreamReader(stream, Encoding.ASCII);
|
|
|
|
while(!reader.EndOfStream)
|
|
{
|
|
string line = reader.ReadLine();
|
|
if(string.IsNullOrEmpty(line)) continue;
|
|
data.Add(line);
|
|
}
|
|
}
|
|
|
|
// Load the configuration from this data
|
|
return InputConfiguration(data.ToArray());
|
|
}
|
|
}
|
|
|
|
|
|
// This will load a configuration from string
|
|
public bool InputConfiguration(string[] data)
|
|
{
|
|
// Clear errors
|
|
ClearError();
|
|
|
|
// Parse the data to the root structure
|
|
int pos = 0;
|
|
int line = 0; //mxd
|
|
matches = new Dictionary<string, UniversalEntry>(StringComparer.Ordinal); //mxd
|
|
key = new StringBuilder(16); //mxd
|
|
val = new StringBuilder(16); //mxd
|
|
root = InputStructure(ref data, ref pos, ref line, true);
|
|
|
|
// Return true when done, false when errors occurred
|
|
return (cpErrorResult == 0);
|
|
}
|
|
|
|
#endregion
|
|
}
|
|
}
|