- new function for removing inline- and block comments from one ore more lines of c code

src/stubser/cfile_parser.c

@@ -23,6 +23,7 @@
 #define CFILE_PARSER_MAX_REGEX_MATCHING_GROUPS 10
 
 STATIC bool cfile_parser_initialized = false;
+STATIC bool blockComment = false;
 STATIC uint8_t cfile_parser_functionLine = 0;
 STATIC cfunction_t *cfile_parser_function = NULL;
 STATIC regex_t regX;
@@ -167,6 +168,66 @@ STATIC int8_t matchFunctionStart(cfunction_t *aFunction, char *aString, size_t a
    return 0;
 }
 
+/*!
+ * @brief Remove comments from given line
+ * @param [in] *aLine terminated string
+ * @param [out] param1 paramdescription1
+ * @retval 0 comments removed
+ * @retval 1 line within block comment (no c evaluation needed)
+ * @retval -1 NULL pointer detected
+ */
+int8_t removeComments(char *aLine)
+{
+   bool emptyLine = false;
+   char *comment = NULL;
+   char *commentEnd = NULL;
+
+   if (NULL == aLine)
+   {
+      perror("Null pointer");
+      return -1;
+   }
+
+   // remove basic inline comments
+   comment = strstr(aLine, CPARS_COMMENT_INLINE);
+   if (NULL != comment)
+   {
+      strlcpy(comment, CPARS_LINE_ENDING, strlen(CPARS_LINE_ENDING) + 1);
+      comment = NULL;
+   }
+
+   // remove block comments (also across multiple lines)
+   if (blockComment)
+   {
+      emptyLine = true;
+      comment = aLine;
+   }
+   else
+   {
+      comment = strstr(aLine, CPARS_COMMENT_BLOCK_START);
+   }
+   while (comment)
+   {
+      commentEnd = strstr(comment, CPARS_COMMENT_BLOCK_END);
+      if (NULL != commentEnd)
+      {
+         // copy character without block comment ending (strlen(CPARS_COMMENT_BLOCK_END))
+         strlcpy(comment, commentEnd + strlen(CPARS_COMMENT_BLOCK_END), strlen(commentEnd + strlen(CPARS_COMMENT_BLOCK_END)) + 1);
+         comment = strstr(aLine, "/*");
+         blockComment = false;
+         emptyLine = false;
+      }
+      else
+      {
+         strlcpy(comment, CPARS_LINE_ENDING, strlen(CPARS_LINE_ENDING) + 1);
+         blockComment = true;
+         comment = NULL;
+      }
+   }
+
+   return (int8_t) emptyLine;
+}
+
 /*!
  * @brief Process a string (e.g. from getline()) if it is a single or multiple line function definition
  * @todo closing parenthesis within parameter list will break the detection
@@ -181,13 +242,10 @@ STATIC cfunction_t* cfile_parser_evaluateLine(char *aLine)
    bool functionEnd = false;
    cfunction_type_t tempFunctionType = CFUNCTION_TYPE_UNDEF;
    cfunction_parameter_t *tempParameter = NULL;
-   char *tempChar = NULL;
 
-   // remove basic inline comments
+   if (0 != removeComments(aLine))
-   tempChar = strstr(aLine, "//");
-   if (NULL != tempChar)
    {
-      strlcpy(tempChar, "\r\n", 3);
+      return NULL;
    }
 
    if (cfile_parser_functionLine)

src/stubser/cfile_parser_loc.h

@@ -14,6 +14,11 @@
 #ifndef STUBSER_CFILE_PARSER_LOC_H_
 #define STUBSER_CFILE_PARSER_LOC_H_
 
+#define CPARS_LINE_ENDING "\r\n"
+#define CPARS_COMMENT_INLINE "//"
+#define CPARS_COMMENT_BLOCK_START "/*"
+#define CPARS_COMMENT_BLOCK_END "*/"
+
 #define FUNCTION_BASE "^[[:blank:]]*([ _\\*[:alnum:]]* +\\**)([_\\*[:alnum:]]*)[[:blank:]]*\\([[:blank:]]*([^\r\\)]*)"
 #define FUNCTION_SL FUNCTION_BASE "\\)[^;]*$"
 #define FUNCTION_ML_SOF FUNCTION_BASE "[\r]*$"