René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Regular expression in DiffUtils is too strict and will fail.","articleBody":"In DiffUtils, there is the following regular expression:\r\n\r\n```\r\npublic class DiffUtils {\r\n\tprivate static Pattern unifiedDiffChunkRe = Pattern\r\n\t\t\t.compile(\"^@@\\\\s+-(?:(\\\\d+)(?:,(\\\\d+))?)\\\\s+\\\\+(?:(\\\\d+)(?:,(\\\\d+))?)\\\\s+@@$\");\r\n```\r\n\r\nThis will fail if there is a section header after the final @@ which is permitted. See https://en.wikipedia.org/wiki/Diff\r\n\r\n```\r\n\"@@ -l,s +l,s @@ optional section heading\"\r\n```\r\n\r\nThis can be trivially fixed by replacing the regular expression with:\r\n\r\n```\r\n\"^@@\\\\s+-(?:(\\\\d+)(?:,(\\\\d+))?)\\\\s+\\\\+(?:(\\\\d+)(?:,(\\\\d+))?)\\\\s+@@.*$\"\r\n```\r\n\r\n... which will ignore the optional section heading.\r\n\r\nThanks for your project.","author":{"url":"https://github.com/aleppard","@type":"Person","name":"aleppard"},"datePublished":"2023-05-10T08:38:30.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/41/java-diff-utils/issues/41"}