From e2e62000370dca11dd9b03b5260f18dce41b8540 Mon Sep 17 00:00:00 2001
From: Julia Beliaeva <Julia.Beliaeva@jetbrains.com>
Date: Wed, 16 Nov 2016 23:33:05 +0300
Subject: [PATCH] [hg] partially support regular expressions and matching case
 options in hg log

Case-insensitive regular expressions do not work.
---
 .../src/org/zmlx/hg4idea/log/HgLogProvider.java      | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/plugins/hg4idea/src/org/zmlx/hg4idea/log/HgLogProvider.java b/plugins/hg4idea/src/org/zmlx/hg4idea/log/HgLogProvider.java
index 36b0f8226d4d..5cba891ac3cf 100644
--- a/plugins/hg4idea/src/org/zmlx/hg4idea/log/HgLogProvider.java
+++ b/plugins/hg4idea/src/org/zmlx/hg4idea/log/HgLogProvider.java
@@ -275,7 +275,17 @@ public class HgLogProvider implements VcsLogProvider {
 
     if (filterCollection.getTextFilter() != null) {
       String textFilter = filterCollection.getTextFilter().getText();
-      filterParameters.add(HgHistoryUtil.prepareParameter("keyword", textFilter));
+      if (filterCollection.getTextFilter().isRegex()) {
+        filterParameters.add("-r");
+        filterParameters.add("grep(r'" + textFilter + "')");
+      }
+      else if (filterCollection.getTextFilter().matchesCase()) {
+        filterParameters.add("-r");
+        filterParameters.add("grep(r'" + StringUtil.escapeChars(textFilter, UserNameRegex.EXTENDED_REGEX_CHARS) + "')");
+      }
+      else {
+        filterParameters.add(HgHistoryUtil.prepareParameter("keyword", textFilter));
+      }
     }
 
     if (filterCollection.getStructureFilter() != null) {