Created
March 3, 2015 22:42
-
-
Save atifaziz/3b4c57e98d3d71c5f222 to your computer and use it in GitHub Desktop.
DirectivesParser from Razor Generator changeset fd2494a3d3f4
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
using System; | |
using System.Collections.Generic; | |
using System.IO; | |
using System.Text.RegularExpressions; | |
namespace RazorGenerator.Core | |
{ | |
internal static class DirectivesParser | |
{ | |
private const string GlobalDirectivesFileName = "razorgenerator.directives"; | |
public static Dictionary<string, string> ParseDirectives(string baseDirectory, string fullPath) | |
{ | |
var directives = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase); | |
string directivesPath; | |
if (TryFindGlobalDirectivesFile(baseDirectory, fullPath, out directivesPath)) | |
{ | |
ParseGlobalDirectives(directives, directivesPath); | |
} | |
ParseFileDirectives(directives, fullPath); | |
return directives; | |
} | |
/// <summary> | |
/// Attempts to locate the nearest global directive file by | |
/// </summary> | |
private static bool TryFindGlobalDirectivesFile(string baseDirectory, string fullPath, out string path) | |
{ | |
baseDirectory = baseDirectory.TrimEnd(Path.DirectorySeparatorChar); | |
var directivesDirectory = Path.GetDirectoryName(fullPath).TrimEnd(Path.DirectorySeparatorChar); | |
while (directivesDirectory != null && directivesDirectory.Length >= baseDirectory.Length) | |
{ | |
path = Path.Combine(directivesDirectory, GlobalDirectivesFileName); | |
if (File.Exists(path)) | |
{ | |
return true; | |
} | |
directivesDirectory = Path.GetDirectoryName(directivesDirectory).TrimEnd(Path.DirectorySeparatorChar); | |
} | |
path = null; | |
return false; | |
} | |
private static void ParseGlobalDirectives(Dictionary<string, string> directives, string directivesPath) | |
{ | |
var fileContent = File.ReadAllText(directivesPath); | |
ParseKeyValueDirectives(directives, fileContent); | |
} | |
private static void ParseFileDirectives(Dictionary<string, string> directives, string filePath) | |
{ | |
var inputFileContent = File.ReadAllText(filePath); | |
int index = inputFileContent.IndexOf("*@", StringComparison.OrdinalIgnoreCase); | |
if (inputFileContent.TrimStart().StartsWith("@*") && index != -1) | |
{ | |
string directivesLine = inputFileContent.Substring(0, index).TrimStart('*', '@'); | |
ParseKeyValueDirectives(directives, directivesLine); | |
} | |
} | |
private static void ParseKeyValueDirectives(Dictionary<string, string> directives, string directivesLine) | |
{ | |
// TODO: Make this better. | |
var regex = new Regex(@"\b(?<Key>\w+)\s*:\s*(?<Value>[~\\\/\w\.]+)\b", RegexOptions.ExplicitCapture); | |
foreach (Match item in regex.Matches(directivesLine)) | |
{ | |
var key = item.Groups["Key"].Value; | |
var value = item.Groups["Value"].Value; | |
directives[key] = value; | |
} | |
} | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment