Add .clang-format

Make it easier to keep a consistent style

1 files changed, 50 insertions, 43 deletions

diff --git a/src/args.cc b/src/args.cc
index 078db1a..1794941 100644
--- a/src/args.cc
+++ b/src/args.cc
@@ -26,10 +26,13 @@ class OptionImpl : public Args::OptionArgument {
     OptionalArgument,
   };
 
-  OptionImpl(Type type, char shortname, std::string longname,
-             std::string arg, std::string help)
-      : type(type), shortname(shortname), longname(std::move(longname)),
-        arg(std::move(arg)), help(std::move(help)) {}
+  OptionImpl(Type type, char shortname, std::string longname, std::string arg,
+             std::string help)
+      : type(type),
+        shortname(shortname),
+        longname(std::move(longname)),
+        arg(std::move(arg)),
+        help(std::move(help)) {}
 
   const Type type;
   const char shortname;
@@ -57,13 +60,13 @@ class OptionImpl : public Args::OptionArgument {
 
   void set_argument(std::string value) {
     assert(type == Type::RequiredArgument || type == Type::OptionalArgument);
-    is_set_= true;
+    is_set_ = true;
     value_ = std::move(value);
   }
 
   void set_no_argument() {
     assert(type == Type::NoArgument || type == Type::OptionalArgument);
-    is_set_= true;
+    is_set_ = true;
     value_.reset();
   }
 
@@ -74,11 +77,10 @@ class OptionImpl : public Args::OptionArgument {
 
 class ArgsImpl : public Args {
  public:
-  explicit ArgsImpl(std::string prgname)
-      : prgname_(std::move(prgname)) {}
+  explicit ArgsImpl(std::string prgname) : prgname_(std::move(prgname)) {}
 
-  std::shared_ptr<Option> option(
-      char shortname, std::string longname, std::string help) override {
+  std::shared_ptr<Option> option(char shortname, std::string longname,
+                                 std::string help) override {
     auto opt = std::make_shared<OptionImpl>(
         OptionImpl::Type::NoArgument, shortname, std::move(longname),
         /* arg */ std::string(), std::move(help));
@@ -86,13 +88,15 @@ class ArgsImpl : public Args {
     return opt;
   }
 
-  std::shared_ptr<OptionArgument> option_argument(
-      char shortname, std::string longname, std::string arg,
-      std::string help, bool required) override {
+  std::shared_ptr<OptionArgument> option_argument(char shortname,
+                                                  std::string longname,
+                                                  std::string arg,
+                                                  std::string help,
+                                                  bool required) override {
     auto opt = std::make_shared<OptionImpl>(
-        required ? OptionImpl::Type::RequiredArgument :
-        OptionImpl::Type::OptionalArgument, shortname, std::move(longname),
-        std::move(arg), std::move(help));
+        required ? OptionImpl::Type::RequiredArgument
+                 : OptionImpl::Type::OptionalArgument,
+        shortname, std::move(longname), std::move(arg), std::move(help));
     add(opt);
     return opt;
   }
@@ -118,9 +122,11 @@ class ArgsImpl : public Args {
         if (argv[a][1] == '-') {
           // long option
           size_t eq = 2;
-          while (argv[a][eq] != '=' && argv[a][eq] != '\0') ++eq;
+          while (argv[a][eq] != '=' && argv[a][eq] != '\0')
+            ++eq;
           size_t end = eq;
-          while (argv[a][end] != '\0') ++end;
+          while (argv[a][end] != '\0')
+            ++end;
 
           if (end == 2) {
             // "--", no more options signal
@@ -134,8 +140,8 @@ class ArgsImpl : public Args {
           auto name = std::string_view(argv[a] + 2, eq - 2);
           auto it = long_.find(name);
           if (it == long_.end()) {
-            last_error_ = std::format("{}: unrecognized option '--{}'",
-                                      prgname, name);
+            last_error_ =
+                std::format("{}: unrecognized option '--{}'", prgname, name);
             return false;
           }
           auto& opt = options_[it->second];
@@ -144,9 +150,9 @@ class ArgsImpl : public Args {
             // long option with argument after equal sign
             switch (opt->type) {
               case OptionImpl::Type::NoArgument:
-                last_error_ = std::format(
-                    "{}: option '--{}' doesn't allow an argument",
-                    prgname, name);
+                last_error_ =
+                    std::format("{}: option '--{}' doesn't allow an argument",
+                                prgname, name);
                 return false;
               case OptionImpl::Type::RequiredArgument:
               case OptionImpl::Type::OptionalArgument:
@@ -163,8 +169,7 @@ class ArgsImpl : public Args {
               case OptionImpl::Type::RequiredArgument:
                 if (++a >= argc) {
                   last_error_ = std::format(
-                      "{}: option '--{}' requires an argument",
-                      prgname, name);
+                      "{}: option '--{}' requires an argument", prgname, name);
                   return false;
                 }
                 opt->set_argument(argv[a]);
@@ -177,8 +182,8 @@ class ArgsImpl : public Args {
           for (; *current; ++current) {
             auto it = short_.find(*current);
             if (it == short_.end()) {
-              last_error_ = std::format("{}: invalid option -- '{}'",
-                                        prgname, *current);
+              last_error_ =
+                  std::format("{}: invalid option -- '{}'", prgname, *current);
               return false;
             }
 
@@ -190,9 +195,9 @@ class ArgsImpl : public Args {
                 break;
               case OptionImpl::Type::RequiredArgument:
                 if (++a >= argc) {
-                  last_error_ = std::format(
-                      "{}: option requires an argument -- '{}'",
-                      prgname, *current);
+                  last_error_ =
+                      std::format("{}: option requires an argument -- '{}'",
+                                  prgname, *current);
                   return false;
                 }
                 opt->set_argument(argv[a]);
@@ -209,13 +214,15 @@ class ArgsImpl : public Args {
   }
 
   void print_error(std::ostream& out) const override {
-    if (last_error_.empty()) return;
+    if (last_error_.empty())
+      return;
 
     out << last_error_ << '\n';
   }
 
   void print_help(std::ostream& out, uint32_t width = 79) const override {
-    if (options_.empty()) return;
+    if (options_.empty())
+      return;
 
     uint32_t indent = 0;
     const uint32_t max_need = width / 2;
@@ -223,7 +230,7 @@ class ArgsImpl : public Args {
     for (auto const& opt : options_) {
       uint32_t need;
       if (opt->longname.empty()) {
-        need = 4; // -O
+        need = 4;  // -O
         switch (opt->type) {
           case OptionImpl::Type::NoArgument:
           case OptionImpl::Type::OptionalArgument:
@@ -233,7 +240,7 @@ class ArgsImpl : public Args {
             break;
         }
       } else {
-        need = 8 + opt->longname.size(); // -O, --option
+        need = 8 + opt->longname.size();  // -O, --option
         switch (opt->type) {
           case OptionImpl::Type::NoArgument:
             break;
@@ -247,7 +254,7 @@ class ArgsImpl : public Args {
             break;
         }
       }
-      need += 2; // margin
+      need += 2;  // margin
 
       option_need.emplace_back(need);
       if (need <= max_need) {
@@ -255,7 +262,8 @@ class ArgsImpl : public Args {
       }
     }
 
-    print_wrap(out, width, /* indent */ 0, "Mandatory arguments to long options"
+    print_wrap(out, width, /* indent */ 0,
+               "Mandatory arguments to long options"
                " are mandatory for short options too.");
     auto need_it = option_need.begin();
     for (auto const& opt : options_) {
@@ -321,12 +329,10 @@ class ArgsImpl : public Args {
     options_.emplace_back(std::move(opt));
   }
 
-  static inline bool is_whitespace(char c) {
-    return c == ' ' || c == '\t';
-  }
+  static inline bool is_whitespace(char c) { return c == ' ' || c == '\t'; }
 
   static void print_wrap(std::ostream& out, uint32_t width, uint32_t indent,
-                  const std::string& str) {
+                         const std::string& str) {
     if (indent + str.size() <= width) {
       out << str << '\n';
       return;
@@ -341,7 +347,8 @@ class ArgsImpl : public Args {
     size_t offset = 0;
     while (offset + avail < str.size()) {
       uint32_t i = avail;
-      while (i > 0 && !is_whitespace(str[offset + i])) --i;
+      while (i > 0 && !is_whitespace(str[offset + i]))
+        --i;
       if (i == 0) {
         out << str.substr(offset, avail - 1);
         out << "-\n";
@@ -366,8 +373,8 @@ class ArgsImpl : public Args {
 
 }  // namespace
 
-std::shared_ptr<Args::Option> Args::option(
-    std::string longname, std::string help) {
+std::shared_ptr<Args::Option> Args::option(std::string longname,
+                                           std::string help) {
   return option(/* shortname */ '\0', std::move(longname), std::move(help));
 }