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Jérémie Bertrand
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Mar 11, 2015
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.ComponentModel.Composition; | ||
| using System.Globalization; | ||
| using System.IO; | ||
| using System.Linq; | ||
| using System.Text.RegularExpressions; | ||
|
|
||
| namespace Pretzel.Logic.Templating.Context | ||
| { | ||
| [Export] | ||
| public sealed class LinkHelper | ||
| { | ||
| private static readonly Regex TimestampAndTitleFromPathRegex = new Regex(@"\\(?:(?<timestamp>\d+-\d+-\d+)-)?(?<title>[^\\]*)\.[^\.]+$", RegexOptions.Compiled); | ||
| private static readonly Regex CategoryRegex = new Regex(@":category(\d*)", RegexOptions.Compiled); | ||
| private static readonly Regex SlashesRegex = new Regex(@"/{1,}", RegexOptions.Compiled); | ||
|
|
||
| private static readonly string[] HtmlExtensions = new[] { ".markdown", ".mdown", ".mkdn", ".mkd", ".md", ".textile" }; | ||
|
|
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| private static readonly Dictionary<string, string> BuiltInPermalinks = new Dictionary<string, string> | ||
| { | ||
| { "date", "/:categories/:year/:month/:day/:title.html" }, | ||
| { "pretty", "/:categories/:year/:month/:day/:title/" }, | ||
| { "ordinal", "/:categories/:year/:y_day/:title.html" }, | ||
| { "none", "/:categories/:title.html" }, | ||
| }; | ||
|
|
||
| // http://jekyllrb.com/docs/permalinks/ | ||
| public string EvaluatePermalink(string permalink, Page page) | ||
| { | ||
| if (BuiltInPermalinks.ContainsKey(permalink)) | ||
| { | ||
| permalink = BuiltInPermalinks[permalink]; | ||
| } | ||
|
|
||
| permalink = permalink.Replace(":categories", string.Join("/", page.Categories.ToArray())); | ||
| permalink = permalink.Replace(":dashcategories", string.Join("-", page.Categories.ToArray())); | ||
| permalink = permalink.Replace(":year", page.Date.Year.ToString(CultureInfo.InvariantCulture)); | ||
| permalink = permalink.Replace(":month", page.Date.ToString("MM")); | ||
| permalink = permalink.Replace(":day", page.Date.ToString("dd")); | ||
| permalink = permalink.Replace(":title", GetTitle(page.File)); | ||
| permalink = permalink.Replace(":y_day", page.Date.DayOfYear.ToString("000")); | ||
| permalink = permalink.Replace(":short_year", page.Date.ToString("yy")); | ||
| permalink = permalink.Replace(":i_month", page.Date.Month.ToString()); | ||
| permalink = permalink.Replace(":i_day", page.Date.Day.ToString()); | ||
|
|
||
| if (permalink.Contains(":category")) | ||
| { | ||
| var matches = CategoryRegex.Matches(permalink); | ||
| if (matches != null && matches.Count > 0) | ||
| { | ||
| foreach (Match match in matches) | ||
| { | ||
| var replacementValue = string.Empty; | ||
| int categoryIndex; | ||
| if (match.Success) | ||
| { | ||
| if (int.TryParse(match.Groups[1].Value, out categoryIndex) && categoryIndex > 0) | ||
| { | ||
| replacementValue = page.Categories.Skip(categoryIndex - 1).FirstOrDefault(); | ||
| } | ||
| else if (page.Categories.Any()) | ||
| { | ||
| replacementValue = page.Categories.First(); | ||
| } | ||
| } | ||
|
|
||
| permalink = permalink.Replace(match.Value, replacementValue); | ||
| } | ||
| } | ||
| } | ||
|
|
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| permalink = SlashesRegex.Replace(permalink, "/"); | ||
|
|
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| return permalink; | ||
| } | ||
|
|
||
| public string EvaluateLink(SiteContext context, Page page) | ||
| { | ||
| var directory = Path.GetDirectoryName(page.Filepath); | ||
| var relativePath = directory.Replace(context.OutputFolder, string.Empty); | ||
| var fileExtension = Path.GetExtension(page.Filepath); | ||
|
|
||
| if (HtmlExtensions.Contains(fileExtension, StringComparer.InvariantCultureIgnoreCase)) | ||
| { | ||
| fileExtension = ".html"; | ||
| } | ||
|
|
||
| var link = relativePath.Replace('\\', '/').TrimStart('/') + "/" + GetPageTitle(page.Filepath) + fileExtension; | ||
| if (!link.StartsWith("/")) | ||
| { | ||
| link = "/" + link; | ||
| } | ||
|
|
||
| return link; | ||
| } | ||
|
|
||
| public string GetTitle(string file) | ||
| { | ||
| return TimestampAndTitleFromPathRegex.Match(file).Groups["title"].Value; | ||
| } | ||
|
|
||
| private string GetPageTitle(string file) | ||
| { | ||
| return Path.GetFileNameWithoutExtension(file); | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| using Pretzel.Logic.Templating.Context; | ||
| using System; | ||
| using System.Linq; | ||
| using Xunit; | ||
| using Xunit.Extensions; | ||
|
|
||
| namespace Pretzel.Tests.Templating.Context | ||
| { | ||
| public class LinkHelperTest | ||
| { | ||
| public LinkHelper LinkHelper { get; private set; } | ||
|
|
||
| public LinkHelperTest() | ||
| { | ||
| LinkHelper = new LinkHelper(); | ||
| } | ||
|
|
||
| [Fact] | ||
| public void GetTitle_returns_original_value_when_no_timestamp() | ||
| { | ||
| var result = LinkHelper.GetTitle(@"C:\temp\foobar_baz.md"); | ||
| Assert.Equal("foobar_baz", result); | ||
| } | ||
|
|
||
| [Fact] | ||
| public void GetTitle_returns_strips_timestamp() | ||
| { | ||
| var result = LinkHelper.GetTitle(@"C:\temp\2012-01-03-foobar_baz.md"); | ||
| Assert.Equal("foobar_baz", result); | ||
| } | ||
|
|
||
| [Fact] | ||
| public void GetTitle_preserves_dash_separated_values_that_arent_timestamps() | ||
| { | ||
| var result = LinkHelper.GetTitle(@"C:\temp\foo-bar-baz-qak-foobar_baz.md"); | ||
| Assert.Equal("foo-bar-baz-qak-foobar_baz", result); | ||
| } | ||
|
|
||
| [InlineData(@"C:\TestSite\_site\about.md", "/about.html")] | ||
| [InlineData(@"C:\TestSite\_site\about.mkd", "/about.html")] | ||
| [InlineData(@"C:\TestSite\_site\about.mkdn", "/about.html")] | ||
| [InlineData(@"C:\TestSite\_site\about.mdown", "/about.html")] | ||
| [InlineData(@"C:\TestSite\_site\about.markdown", "/about.html")] | ||
| [InlineData(@"C:\TestSite\_site\about.textile", "/about.html")] | ||
| [InlineData(@"C:\TestSite\_site\rss.xml", "/rss.xml")] | ||
| [InlineData(@"C:\TestSite\_site\relativepath\about.md", "/relativepath/about.html")] | ||
| [Theory] | ||
| public void EvaluateLink_url_is_well_formatted(string filePath, string expectedUrl) | ||
| { | ||
| var siteContext = new SiteContext { OutputFolder = @"C:\TestSite\_site" }; | ||
| var page = new Page { Filepath = filePath }; | ||
|
|
||
| Assert.Equal(expectedUrl, LinkHelper.EvaluateLink(siteContext, page)); | ||
| } | ||
|
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||
| [InlineData("date", "/cat1/cat2/2015/03/09/foobar-baz.html", "cat1,cat2")] | ||
| [InlineData("date", "/2015/03/09/foobar-baz.html", "")] | ||
| [InlineData("/:dashcategories/:year/:month/:day/:title.html", "/cat1-cat2/2015/03/09/foobar-baz.html", "cat1,cat2")] | ||
| [InlineData("/:dashcategories/:year/:month/:day/:title.html", "/2015/03/09/foobar-baz.html", "")] | ||
| [InlineData("pretty", "/cat1/cat2/2015/03/09/foobar-baz/", "cat1,cat2")] | ||
| [InlineData("ordinal", "/cat1/cat2/2015/068/foobar-baz.html", "cat1,cat2")] | ||
| [InlineData("none", "/cat1/cat2/foobar-baz.html", "cat1,cat2")] | ||
| [InlineData("/:categories/:short_year/:i_month/:i_day/:title.html", "/cat1/cat2/15/3/9/foobar-baz.html", "cat1,cat2")] | ||
| [InlineData("/:category/:title.html", "/cat1/foobar-baz.html", "cat1,cat2")] | ||
| [InlineData("/:category/:title.html", "/foobar-baz.html", "")] | ||
| [InlineData("/:category1/:title.html", "/cat1/foobar-baz.html", "cat1,cat2")] | ||
| [InlineData("/:category2/:title.html", "/cat2/foobar-baz.html", "cat1,cat2")] | ||
| [InlineData("/:category3/:title.html", "/foobar-baz.html", "cat1,cat2")] | ||
| [Theory] | ||
| public void EvaluatePermalink_url_is_well_formatted(string permalink, string expectedUrl, string categories) | ||
| { | ||
| var page = new Page | ||
| { | ||
| Categories = categories == null ? Enumerable.Empty<string>() : categories.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries), | ||
| Date = new DateTime(2015, 03, 09), | ||
| File = @"C:\temp\2015-03-09-foobar-baz.md" | ||
| }; | ||
|
|
||
| Assert.Equal(expectedUrl, LinkHelper.EvaluatePermalink(permalink, page)); | ||
| } | ||
| } | ||
| } |
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