That's the only thing I used your string type for, yes -- converting to uppercase.
Everything else is just (original pointer + characters offset), but that actually needed to change the string, so I used your String. I could've written my own version of a toupper, but you'd have to worry about freeing it later, so it was simpler to use yours.
The routine I have got now is this one. However, it does not seem to work. Something is going wrong but cannot figure it out yet.
Code:
void Parsing::ParseCmdLine2(
const int argc,
char* argv[]) {
int i;
int StrSize; // Size of string
int EndsSize; // Size of string
List<int> Ord;
Ord += 0;
cout << "ParseCmdLine2 argv[i]" << endl;
cout << " i = " << i << ", argv[i] = " << argv[i] << endl;
cout << "argc = " << argc << endl;
for (i = 1; i < argc; i++) {
// S = String(argv[i]);
// StrSize = S.size();
cout << "i = " << i << endl;
// First character is '?', e.g. "?abcd"[0] is '?'.
if (argv[i][0] == '?') {
cout << "Check ?" << endl;
ifstream ifs(argv[i]+1); // "?abcd"+1 is "abcd", so open filename "abcd".
if ( ifs.bad() ) error("Error including file " + String(argv[i]) );
else ParseFile(ifs);
} // end of code block. ifs closes here.
// First 2 chars are '-'. A zero value indicates that the characters compared in both
// strings are all equal.
else if (strncmp(argv[i], "--", 2) == 0)
{
cout << "Check -- long option" << endl;
// Pointer to first occurrence of '='
// strchr("--asdf=b", '=') is "=b". If '=' is not found, function returns null pointer.
const char* After = strchr(argv[i], '=');
const char* Name;
// String Ends; // Make it a 'String' so we can use ToUpper.
// '=' is not found. Get user input from next argument.
if (After == NULL)
{
i++; // ++i is more efficient than i++.
if (i == argc) { // If next argument not found, quit instead of crashing.
error("Out of arguments");
continue;
}
Name = argv[i]; // Set user input
// '=' is found.
} else {
Name = After + 1; // Set user input. "=file"+1 is "file".
}
String Ends = ToUpper(String(Name)); // Conversion of 'Name' to a 'String' so we can use ToUpper.
cout << "Name = " << Name << ", Ends = " << Ends << endl;
Index += ParseEl(Name, Ends, Ord);
}
}
Ptr = 0;
}
---------- Post updated at 06:19 PM ---------- Previous update was at 06:13 PM ----------
I think I am making some progress. Name should have the string to the left of '=' whereas Ends should have the string to the right of '='.
The following is the original code:
Code:
void Parsing::ParseCmd(
const int argc,
char* argv[]) {
int i;
int poseq;
String S;
String Name;
String File;
String Ends;
List<int> Ord; Ord += 0;
ifstream ifs;
for (i = 1; i < argc; i++) {
S = String(argv[i]);
if (S[0] == '?') {
File = S.ToEnd(1);
ifs.open((char *)File);
if (ifs.bad()) { error("Error including file"); }
ParseFile(ifs);
ifs.close();
} else {
Search(S, "=", poseq);
Name = ToUpper( S.Substr(0, poseq-1) );
Ends = S.ToEnd( poseq + 1 );
Index += ParseEl(Name, Ends, Ord);
}
}
Ptr = 0;
}
---------- Post updated at 06:34 PM ---------- Previous update was at 06:19 PM ----------
We are not capturing the Name.
If the user parses vmod=jcdint-z30.cmd, I want to have Name=VMOD and Ends=jcdint-z30.cmd
---------- Post updated at 07:02 PM ---------- Previous update was at 06:34 PM ----------
Some more progress. I now have the code
Code:
void Parsing::ParseCmdLine2(
const int argc,
char* argv[]) {
int i;
int StrSize; // Size of string
int EndsSize; // Size of string
List<int> Ord;
Ord += 0;
cout << "ParseCmdLine2 argv[i]" << endl;
cout << " i = " << i << ", argv[i] = " << argv[i] << endl;
cout << "argc = " << argc << endl;
for (i = 1; i < argc; i++) {
// S = String(argv[i]);
// StrSize = S.size();
cout << "i = " << i << endl;
cout << "argv[i] = " << argv[i] << endl;
cout << "strncmp = " << strncmp(argv[i], "--", 2) << endl;
// First character is '?', e.g. "?abcd"[0] is '?'.
if (argv[i][0] == '?') {
cout << "Check ?" << endl;
ifstream ifs(argv[i]+1); // "?abcd"+1 is "abcd", so open filename "abcd".
if ( ifs.bad() ) error("Error including file " + String(argv[i]) );
else ParseFile(ifs);
} // end of code block. ifs closes here.
// First 2 chars are '-'. A zero value indicates that the characters compared in both
// strings are all equal.
else if (strncmp(argv[i], "--", 2) == 0)
{
cout << "Check long option" << endl;
// Pointer to first occurrence of '='
// strchr("--asdf=b", '=') is "=b". If '=' is not found, function returns null pointer.
const char* After = strchr(argv[i], '=');
const char* optName;
const char* Ends;
String Name; // Make it a 'String' so we can use ToUpper.
// '=' is not found. Get user input from next argument.
if (After == NULL)
{
i++; // ++i is more efficient than i++.
if (i == argc) { // If next argument not found, quit instead of crashing.
error("Out of arguments");
continue;
}
Ends = argv[i]; // Set user input
// '=' is found.
} else {
Ends = After + 1; // Set user input. "=file"+1 is "file".
}
Name = "VMOD";
// String optName = ToUpper(); // Conversion of 'Name' to a 'String' so we can use ToUpper.
cout << "Name = " << Name << ", Ends = " << Ends << endl << endl;
// Index += ParseEl(Name, Ends, Ord);
}
}
Ptr = 0;
}
I don't know where you got the idea i++ is more efficient than ++i. The operation is identical -- the only difference is the order.
I have absolutely no way to test this code because of the heavy use of variables and classes you never defined anywhere. Therefore, without you telling me in what way it's going wrong, it's extremely hard to tell what it is doing.
How about this:
Code:
#include <ctype.h> // for standard C toupper() function. toupper('a') returns 'A'
// Reads 'var' part from 'var=whatever' in input, into VAR in 'buf'
void setname(char *buf, const char *input)
{
char *e;
strcpy(buf, input);
e=strchr(buf, "=");
if(e) (*e)='\0';
e=buf;
while(*e) { // Convert to uppercase, char by char
(*e)=toupper(*e);
e++;
}
}
...
void Parsing::ParseCmdLine2(
const int argc,
char* argv[]) {
...
char Namebuf[512];
...
setname(Namebuf, argv[i]); // string class no longer needed!
...
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