From 8a425f03dd83841b9993953c07accfde7e423915 Mon Sep 17 00:00:00 2001
From: Rui Ueyama <ruiu@google.com>
Date: Thu, 1 Sep 2016 22:48:05 +0000
Subject: [PATCH] Add comments.

llvm-svn: 280423
---
 lld/ELF/ScriptParser.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lld/ELF/ScriptParser.cpp b/lld/ELF/ScriptParser.cpp
index 559ec1b..671a272 100644
--- a/lld/ELF/ScriptParser.cpp
+++ b/lld/ELF/ScriptParser.cpp
@@ -60,7 +60,7 @@ std::vector<StringRef> ScriptParserBase::tokenize(StringRef S) {
     if (S.empty())
       return Ret;
 
-    // Quoted token
+    // Quoted token.
     if (S.startswith("\"")) {
       size_t E = S.find("\"", 1);
       if (E == StringRef::npos) {
@@ -72,10 +72,12 @@ std::vector<StringRef> ScriptParserBase::tokenize(StringRef S) {
       continue;
     }
 
-    // Unquoted token
+    // Unquoted token. This is more relaxed than tokens in C-like language,
+    // so that you can write "file-name.cpp" as one bare token, for example.
     size_t Pos = S.find_first_not_of(
         "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
         "0123456789_.$/\\~=+[]*?-:!<>");
+
     // A character that cannot start a word (which is usually a
     // punctuation) forms a single character token.
     if (Pos == 0)
-- 
2.7.4