added -C option. llvm 14

3 files changed, 32 insertions, 2 deletions

diff --git a/.travis.yml b/.travis.yml
index 0a8c68c..6edb944 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -121,3 +121,18 @@ matrix:
       - git submodule update

       script:

         - make CXX=clang-13 LLVM_CONF=llvm-config-13

+    - dist: bionic

+      name: llvm14

+      sudo: required

+      language: cpp

+      before_script:

+      - sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y

+      - sudo apt-get update -y

+      - wget https://apt.llvm.org/llvm.sh

+      - chmod +x llvm.sh

+      - sudo ./llvm.sh 14

+      - sudo apt-get install -y clang-14 llvm-14-dev libclang-common-14-dev libclang-14-dev

+      - git submodule init

+      - git submodule update

+      script:

+        - make CXX=clang-14 LLVM_CONF=llvm-config-14

diff --git a/cgrep.cpp b/cgrep.cpp
index 4600668..07c313f 100644
--- a/cgrep.cpp
+++ b/cgrep.cpp
@@ -137,6 +137,11 @@ cl::opt<int> CO_B("B",
                   cl::desc("Same as grep, how many lines before the matched "
                            "line to print. Defaults to 0."),
                   cl::init(0), cl::cat(CGrepCat), cl::Optional); // done
+cl::opt<int>
+    CO_C("C",
+         cl::desc("Same as grep, how many lines before and after the matched "
+                  "line to print. Defaults to 0."),
+         cl::init(0), cl::cat(CGrepCat), cl::Optional); // done
 } // namespace
 /***********************************************************************************************/
 #if 1
@@ -253,8 +258,14 @@ void output_handler(const MatchFinder::MatchResult &MR, SourceRange SR,
     std::cout << CC_RED << MR.SourceManager->getFilename(SR.getBegin()).str()
               << ":" << linenumber << ":" << columnnumber_start << CC_NORMAL;
   } else {
-    unsigned line_range_begin = linenumber - CO_B;
-    unsigned line_range_end = linenumber + CO_A;
+    unsigned line_range_begin;
+    unsigned line_range_end;
+    if (0 >= CO_C) {
+      line_range_begin = linenumber - CO_C;
+      line_range_end = linenumber + CO_C;
+    }
+    line_range_begin = linenumber - CO_B;
+    line_range_end = linenumber + CO_A;
     std::string line;
     unsigned line_nu = 0;
     while (getline(mainfile, line)) {
diff --git a/cgrep.roff b/cgrep.roff
index 817b4ed..f2a074d 100644
--- a/cgrep.roff
+++ b/cgrep.roff
@@ -38,6 +38,10 @@ How many lines after the matched line to print. Defaults to 0.
 Howm many lines before the matched line to print. Defaults to 0.
 
 .TP
+\fB-C=<int>\fP
+Howm many lines before and after the matched line to print. Defaults to 0.
+
+.TP
 \fB--all\fP
 Turns on all switches other than nameddecl.