From e41c7556c22bda359c2b97cd98d59082110add95 Mon Sep 17 00:00:00 2001
From: Dan Willemsen <dwillemsen@google.com>
Date: Wed, 22 Feb 2017 14:31:16 -0800
Subject: Add --color_warnings to make warnings/errors like clang

This adds new (WARN|KATI_WARN|ERROR)_LOC log macro variants that take a
location as the first argument, and will prefix that location
information to the warning/error lines.

When --color_warnings is enabled, it reformats them to have a standard
warning:/error: infix, and adds colors in order to match the
warnings/errors produced by clang.
---
 strutil.cc | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'strutil.cc')

diff --git a/strutil.cc b/strutil.cc
index b094198..632d151 100644
--- a/strutil.cc
+++ b/strutil.cc
@@ -174,6 +174,13 @@ bool HasWord(StringPiece str, StringPiece w) {
   return true;
 }
 
+StringPiece TrimPrefix(StringPiece str, StringPiece prefix) {
+  ssize_t size_diff = str.size() - prefix.size();
+  if (size_diff < 0 || str.substr(0, prefix.size()) != prefix)
+    return str;
+  return str.substr(prefix.size());
+}
+
 StringPiece TrimSuffix(StringPiece str, StringPiece suffix) {
   ssize_t size_diff = str.size() - suffix.size();
   if (size_diff < 0 || str.substr(size_diff) != suffix)
-- 
cgit v1.2.3