Print the EPUB file name if more than 1 input file.

Change --no-filename to mean: Don't print the EPUB file name.

man/epubgrep.1.adoc

@@ -59,8 +59,9 @@ Print _NUMBER_ words of context around matches.
 Do not color matches.
 
 *--no-filename*::
-Suppress the mentioning of file names on output. Chapters and page numbers will
-still be output.
+Suppress the mentioning of EPUB file names on output. File names inside the
+EPUB, chapters and page numbers will still be output.
+
 *-r*, *--recursive*:
 Read all files under each directory, recursively, following symbolic links only
 if they are on the command line. Silently skips directories that are not

src/main.cpp

@@ -228,19 +228,32 @@ int main(int argc, char *argv[])
 
     for (const auto &matches_file : matches_all)
     {
+        fs::path last_epub;
         for (const auto &match : matches_file)
         {
-            if (vm.count("no-filename") == 0)
+            if (input_files.size() <= 1 || vm.count("no-filename") == 0)
             {
-                cout << match.filepath;
+                if (match.epub_filepath != last_epub)
+                {
+                    if (vm.count("nocolor") == 0)
+                    {
+                        cout << termcolor::yellow;
+                    }
+
+                    cout << format(translate("  In {0:s}: \n").str().data(),
+                                   fs::relative(match.epub_filepath));
+                    last_epub = match.epub_filepath;
+
+                    if (vm.count("nocolor") == 0)
+                    {
+                        cout << termcolor::reset;
+                    }
+                }
             }
+            cout << match.filepath;
             if (!match.headline.empty())
             {
-                if (vm.count("no-filename") == 0)
-                {
-                    cout << ", ";
-                }
-                cout << match.headline;
+                cout << ", " << match.headline;
             }
             if (!match.page.empty())
             {

src/options.cpp

@@ -74,7 +74,7 @@ po::variables_map parse_options(int argc, char *argv[])
          .str().data())
         ("nocolor", translate("Do not color matches.") .str().data())
         ("no-filename",
-         translate("Suppress the mentioning of file names on output.")
+         translate("Suppress the mentioning of EPUB file names on output.")
          .str().data())
         ("recursive,r",
          translate("Read all files under each directory, recursively.")

src/search.cpp

@@ -80,6 +80,7 @@ std::vector<match> search(const fs::path &filepath, std::string_view regex,
                                    boost::match_default))
         {
             match match; // FIXME: Rename variable or struct.
+            match.epub_filepath = filepath;
             match.filepath = entry;
             match.text = match_result[0];
             match.context = context(match_result, opts.context);

src/search.hpp

@@ -34,11 +34,12 @@ using match_context = std::pair<std::string, std::string>;
 
 struct match
 {
-    std::string text;      //!< Matched string.
-    match_context context; //!< The context around the match.
-    std::string filepath;  //!< The file path of the matched line.
-    std::string headline;  //!< The last headline, if available.
-    std::string page;      //!< The page number, if available.
+    fs::path epub_filepath; //!< File path of the EPUB.
+    std::string text;       //!< Matched string.
+    match_context context;  //!< The context around the match.
+    std::string filepath;   //!< The file path of the matched line.
+    std::string headline;   //!< The last headline, if available.
+    std::string page;       //!< The page number, if available.
 };
 
 enum class regex_kind