From: Jeff Genovy <29107334+jefgen@users.noreply.github.com>
Date: Thu, 14 Sep 2017 19:04:20 +0000 (+0000)
Subject: ICU-13356 gennorm2 crashes if the input file contains blank lines.
X-Git-Tag: release-60-rc~142
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=fc78f45dd96627d66890f423ba1509ec7c668068;p=icu

ICU-13356 gennorm2 crashes if the input file contains blank lines.

X-SVN-Rev: 40414
---

diff --git a/icu4c/source/tools/gennorm2/gennorm2.cpp b/icu4c/source/tools/gennorm2/gennorm2.cpp
index c0815c4e577..2d24d61071b 100644
--- a/icu4c/source/tools/gennorm2/gennorm2.cpp
+++ b/icu4c/source/tools/gennorm2/gennorm2.cpp
@@ -235,6 +235,9 @@ void parseFile(std::ifstream &f, Normalizer2DataBuilder &builder) {
     std::string lineString;
     uint32_t startCP, endCP;
     while(std::getline(f, lineString)) {
+        if (lineString.empty()) {
+            continue;  // skip empty lines.
+        }
 #if (U_CPLUSPLUS_VERSION >= 11)
         char *line = &lineString.front();
 #else