#region License // // The Open Toolkit Library License // // Copyright (c) 2006 - 2010 the Open Toolkit library. // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights to // use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of // the Software, and to permit persons to whom the Software is furnished to do // so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in all // copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES // OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR // OTHER DEALINGS IN THE SOFTWARE. // #endregion using System; using System.Collections.Generic; using System.Text.RegularExpressions; using System.Xml.Linq; namespace CHeaderToXML { class GLParser : Parser { static readonly Regex extensions = new Regex( "(ARB|EXT|ATI|NV|SUNX|SUN|SGIS|SGIX|SGI|MESA|3DFX|IBM|GREMEDY|HP|INTEL|PGI|INGR|APPLE|OML|I3D)", RegexOptions.RightToLeft | RegexOptions.Compiled); static readonly char[] splitters = new char[] { ' ', '\t', ',', '(', ')', ';', '\n', '\r' }; enum ParserModes { None, Enum, Func }; ParserModes CurrentMode; enum EntryModes { Core, Compatibility }; EntryModes CurrentEntryMode; public override IEnumerable Parse(string[] lines) { XElement current = null; foreach (string l in lines) { // Clean up line for further processing and skip invalid lines. string line = l.Replace('\t', ' ').Trim(); if (!IsValid(line)) continue; string[] words = SplitWords(line); if (line.Contains("enum:")) { // This is a new enum definition if (current != null) yield return current; current = new XElement("enum", new XAttribute("name", words[0])); CurrentMode = ParserModes.Enum; CurrentEntryMode = EntryModes.Core; } else if (line.StartsWith(words[0] + "(")) { // This is a new function definition if (current != null) yield return current; var match = extensions.Match(words[0]); string extension = match != null && String.IsNullOrEmpty(match.Value) ? "Core" : match.Value; current = new XElement("function", new XAttribute("name", words[0]), new XAttribute("extension", extension)); if (words[0].Contains("ShaderSource")) { System.Diagnostics.Debugger.Break(); } CurrentMode = ParserModes.Func; } else if (current != null) { // This is an addition to the current element (enum or function) switch (CurrentMode) { case ParserModes.Enum: if (words[0] == "use") { current.Add(new XElement("use", new XAttribute("enum", words[1]), new XAttribute("token", words[2]))); //new XAttribute("profile", CurrentEntryMode == EntryModes.Compatibility ? // "compatibility" : "core"))); } else if (words[1] == "=") { current.Add(new XElement("token", new XAttribute("name", words[0]), new XAttribute("value", words[2]))); //new XAttribute("profile", CurrentEntryMode == EntryModes.Compatibility ? // "compatibility" : "core"))); } else if (words[0] == "profile:") { //CurrentEntryMode = words[1] == "compatibility" ? // EntryModes.Compatibility : EntryModes.Core; } else if (words[0].Contains("future_use")) { // This is a bug in the 4.3 specs. Unfortunately, // Khronos is no longer accepting bug reports for // the .spec files. continue; } else { // Typical cause is hand-editing the specs and forgetting to add an '=' sign. throw new InvalidOperationException(String.Format( "[Error] Invalid constant definition: \"{0}\"", line)); } break; case ParserModes.Func: switch (words[0]) { case "return": // Line denotes return value current.Add(new XElement("returns", new XAttribute("type", words[1]))); break; case "param": // Line denotes parameter int pointer = words[4].Contains("array") ? 1 : 0; pointer += words[4].Contains("reference") ? 1 : 0; var elem = new XElement("param", new XAttribute("name", words[1]), new XAttribute("type", words[2] + PointerLevel(pointer)), new XAttribute("flow", words[3] == "in" ? "in" : "out")); if (pointer > 0 && words.Length > 5 && words[5].Contains("[1]")) elem.Add(new XAttribute("count", 1)); current.Add(elem); break; case "version": // Line denotes function version (i.e. 1.0, 1.2, 1.5) // GetTexParameterIivEXT and GetTexParameterIuivEXT define two(!) versions (why?) var version = current.Attribute("version"); if (version == null) current.Add(new XAttribute("version", words[1])); else version.Value = words[1]; break; case "category": current.Add(new XAttribute("category", words[1])); break; case "deprecated": current.Add(new XAttribute("deprecated", words[1])); break; } break; } } } if (current != null) { yield return current; } } string[] SplitWords(string line) { return line.Split(splitters, StringSplitOptions.RemoveEmptyEntries); } bool IsValid(string line) { return !(String.IsNullOrEmpty(line) || line.StartsWith("#") || // Disregard comments. line.StartsWith("passthru") || // Disregard passthru statements. line.StartsWith("required-props:") || line.StartsWith("param:") || line.StartsWith("dlflags:") || line.StartsWith("glxflags:") || line.StartsWith("vectorequiv:") || //line.StartsWith("category:") || line.StartsWith("version:") || line.StartsWith("glxsingle:") || line.StartsWith("glxropcode:") || line.StartsWith("glxvendorpriv:") || line.StartsWith("glsflags:") || line.StartsWith("glsopcode:") || line.StartsWith("glsalias:") || line.StartsWith("wglflags:") || line.StartsWith("extension:") || line.StartsWith("alias:") || line.StartsWith("offset:")); } string PointerLevel(int pointer) { switch (pointer) { case 0: return String.Empty; case 1: return "*"; case 2: return "**"; case 3: return "***"; case 4: return "****"; case 5: return "*****"; default: throw new NotImplementedException(); } } } }