fixed string argument issue

Author: Pankaja-Suganda

.gitignore

@@ -580,6 +580,7 @@ mono_crash.*
 [Dd]ebugPublic/
 [Rr]elease/
 [Rr]eleases/
+[Bb]uild/
 x64/
 x86/
 [Ww][Ii][Nn]32/

argparser/src/argparser.cpp

@@ -235,7 +235,7 @@ ArgStatus ArgParser::parse(int argc, char* argv[]){
     Argument* prev = nullptr;
     ArgStatus ret = PARSER_OK;
 
-    if(defaultHelp){
+    if(argc > 1 && defaultHelp){
         if(strcmp(argv[1], LONG_HELPCMD) == PARSER_OK || strcmp(argv[1], SHORT_HELPCMD) == PARSER_OK){
             help();
             return PARSE_DEFAULT_HELP_OK;

argparser/src/argstring.cpp

@@ -1,5 +1,6 @@
 #include <argstring.h>
 #include <typedef.h>
+#include <stdexcept>
 
 StringArgument::StringArgument(const std::string& _name, const std::string& _shortcmd,  const std::string& _longcmd, const std::string& _help, const std::string& defaultval) 
     : Argument(_name, _shortcmd, _longcmd, _help, true), 
@@ -15,7 +16,17 @@ ArgStatus StringArgument::loadValue(const std::string& arg, int pos){
         setArgPosition(pos);
 
         if(!arg.empty()){
-            value = arg;
+            try{
+                value = arg;
+                return PARSER_OK;
+            }catch (const std::invalid_argument& e) {
+                fprintf(stderr, "Error: Invalid string argument: %s (%s)\n", arg.c_str(), e.what());
+                return PARSER_INVALID_ARGUMENT;
+            }
+            catch (const std::exception& e) {
+                fprintf(stderr, "Unexpected error while parsing string: %s\n", e.what());
+                return PARSER_ERROR;
+            }
         }
         else{
             return PARSER_INVALID_ARGUMENT;

main.cpp

@@ -1,6 +1,7 @@
 #include <iostream>
 #include <cmath>
 #include <argparser.h>
+#include <string.h>
 
 // Function to calculate the volume of a rectangular box given its dimensions
 double calculateBoxVolume(double length, double width, double depth) {
@@ -19,6 +20,7 @@ int main(int argc, char* argv[]) {
     parser.addArgument("width",   "-w", "--width",   "Width of the box",      0.0);
     parser.addArgument("depth",   "-d", "--depth",   "Depth of the box",      0.0);
     parser.addArgument("verbose", "-v", "--verbose", "Enable verbose output", false);
+    parser.addArgument("tstr",    "-s", "--string",  "Test string", "Test");
 
     // Parse command-line arguments
     ret = parser.parse(argc, argv);
@@ -34,11 +36,16 @@ int main(int argc, char* argv[]) {
     }
 
     // Retrieve values
+    std::string test_str = parser.get<std::string>("tstr");
     double length = parser.get<double>("length");
     double width  = parser.get<double>("width");
     double depth  = parser.get<double>("depth");
     bool verbose  = parser.get<bool>("verbose");
 
+    if (parser.argExists("tstr")) {
+        printf("String Test Value %s\n", test_str.c_str());
+    }
+
     // Check if the provided dimensions are valid
     if (parser.argExists("length") && parser.argExists("width") && parser.argExists("depth")) {
         // Calculate the volume of the box