add mismatched quote error, update error handling for splitter, add unit tests, update test_helpers buffer

include/ss/converter.hpp

@@ -127,11 +127,6 @@ public:
     no_void_validator_tup_t<Ts...> convert(
         line_ptr_type line, const std::string& delim = default_delimiter) {
         input_ = split(line, delim);
-        if (!splitter_.valid()) {
-            set_error_line_not_split();
-            no_void_validator_tup_t<Ts...> ret{};
-            return ret;
-        }
         return convert<Ts...>(input_);
     }
 
@@ -191,6 +186,7 @@ public:
     }
 
     void set_error_mode(error_mode mode) {
+        splitter_.set_error_mode(mode);
         error_mode_ = mode;
     }
 
@@ -234,10 +230,10 @@ private:
         return error;
     }
 
-    void set_error_line_not_split() {
+    void set_error_unterminated_quote() {
         if (error_mode_ == error_mode::error_string) {
             string_error_.clear();
-            string_error_.append("line not split correctly");
+            string_error_.append(splitter_.error_msg());
         } else {
             bool_error_ = true;
         }
@@ -283,11 +279,19 @@ private:
     template <typename... Ts>
     no_void_validator_tup_t<Ts...> convert_impl(const split_input& elems) {
         clear_error();
+
+        if (!splitter_.valid()) {
+            set_error_unterminated_quote();
+            no_void_validator_tup_t<Ts...> ret{};
+            return ret;
+        }
+
         if (sizeof...(Ts) != elems.size()) {
             set_error_number_of_colums(sizeof...(Ts), elems.size());
             no_void_validator_tup_t<Ts...> ret{};
             return ret;
         }
+
         return extract_tuple<Ts...>(elems);
     }
 

include/ss/parser.hpp

@@ -9,6 +9,8 @@
 #include <string>
 #include <vector>
 
+// TODO rule of 5-3-1
+// TODO threads
 namespace ss {
 
 template <typename... Matchers>

include/ss/splitter.hpp

@@ -131,7 +131,8 @@ public:
         }
     }
 
-    const split_input& resplit(line_ptr_type new_line, ssize_t new_size,
+    const split_input& resplit(
+        line_ptr_type new_line, ssize_t new_size,
         const std::string& delimiter = default_delimiter) {
         line_ = new_line;
 
@@ -175,6 +176,16 @@ private:
         }
     }
 
+    void set_error_mismatched_quote(size_t n) {
+        if (error_mode_ == error_mode::error_string) {
+            string_error_.clear();
+            string_error_.append("mismatched quote at position: " +
+                                 std::to_string(n));
+        } else {
+            bool_error_ = true;
+        }
+    }
+
     void set_error_unterminated_quote() {
         unterminated_quote_ = true;
         if (error_mode_ == error_mode::error_string) {
@@ -186,9 +197,11 @@ private:
     }
 
     void set_error_invalid_resplit() {
+        unterminated_quote_ = false;
         if (error_mode_ == error_mode::error_string) {
             string_error_.clear();
-            string_error_.append("invalid_resplit");
+            string_error_.append("invalid resplit, new line must be longer"
+                                 "than the end of the last slice");
         } else {
             bool_error_ = true;
         }
@@ -388,9 +401,10 @@ private:
                             // eg no trim: ...,"hello"\0 -> hello
                             output_.emplace_back(begin_, curr_);
                         } else {
-                            // missmatched quote
+                            // mismatched quote
                             // eg: ...,"hel"lo,... -> error
-                            // or not
+                            set_error_mismatched_quote(end_ - line_);
+                            output_.emplace_back(line_, begin_);
                         }
                         state_ = state::finished;
                         break;

test/test_converter.cpp

@@ -115,6 +115,9 @@ TEST_CASE("testing invalid conversions") {
     c.convert<int>("");
     REQUIRE(!c.valid());
 
+    c.convert<int>("10", "");
+    REQUIRE(!c.valid());
+
     c.convert<int, void>("");
     REQUIRE(!c.valid());
 
@@ -438,3 +441,24 @@ TEST_CASE("testing converter with quotes spacing and escaping") {
         CHECK(tup == std::make_tuple("ju,st", "so,me", 12.34, "str\"ings"));
     }
 }
+
+TEST_CASE("testing invalid split conversions") {
+    ss::converter<ss::escape<'\\'>, ss::trim<' '>, ss::quote<'"'>> c;
+    c.set_error_mode(ss::error_mode::error_string);
+
+    {
+        // mismatched quote
+        auto tup = c.convert<std::string, std::string, double, char>(
+            buff(R"(  "just  , some ,   "12.3","a"  )"));
+        CHECK(!c.valid());
+        CHECK(!c.unterminated_quote());
+    }
+
+    {
+        // unterminated quote
+        auto tup = c.convert<std::string, std::string, double, std::string>(
+            buff(R"(  ju\,st  ,  "so,me"  ,   12.34     ,   "str""ings)"));
+        CHECK(!c.valid());
+        CHECK(c.unterminated_quote());
+    }
+}

test/test_helpers.hpp

@@ -1,4 +1,5 @@
 #pragma once
+#include <cstdlib>
 #include <cstring>
 
 #ifdef CMAKE_GITHUB_CI
@@ -8,19 +9,35 @@
 #endif
 
 class buffer {
-    constexpr static auto buff_size = 1024;
+    char* data_{nullptr};
-    char data_[buff_size];
 
 public:
     char* operator()(const char* data) {
-        memset(data_, '\0', buff_size);
+        if (data_) {
+            delete[] data_;
+        }
+        data_ = new char[strlen(data) + 1];
         strcpy(data_, data);
         return data_;
     }
 
     char* append(const char* data) {
-        strcat(data_, data);
+        if (data_) {
+            char* new_data_ = new char[strlen(data_) + strlen(data) + 1];
+            strcpy(new_data_, data_);
+            strcat(new_data_, data);
+            delete[] data_;
+            data_ = new_data_;
             return data_;
+        } else {
+            return operator()(data);
+        }
+    }
+
+    ~buffer() {
+        if (data_) {
+            delete[] data_;
+        }
     }
 };
 

test/test_splitter.cpp

@@ -668,3 +668,28 @@ TEST_CASE("testing unterminated quote") {
         }
     }
 }
+
+TEST_CASE("testing invalid splits") {
+    ss::splitter<ss::quote<'"'>, ss::trim<' '>, ss::escape<'\\'>> s;
+
+    // empty delimiter
+    s.split(buff("some,random,strings"), "");
+    CHECK(!s.valid());
+    CHECK(!s.unterminated_quote());
+
+    // mismatched delimiter
+    s.split(buff(R"(some,"random,"strings")"));
+    CHECK(!s.valid());
+    CHECK(!s.unterminated_quote());
+
+    // unterminated quote
+    s.split(buff("some,random,\"strings"));
+    CHECK(!s.valid());
+    CHECK(s.unterminated_quote());
+
+    // invalid resplit
+    char new_line[] = "some";
+    auto a = s.resplit(new_line, strlen(new_line));
+    CHECK(!s.valid());
+    CHECK(!s.unterminated_quote());
+}