- C++ console text editor. - 1 Update
- C++ console text editor. - 1 Update
- Highest paying! - 1 Update
| "Öö Tiib" <ootiib@hot.ee>: Mar 22 12:19PM -0700 On Sunday, 22 March 2015 16:51:34 UTC+2, Bonnedav wrote: > How do I make a console text editor in C++? Standard C++ has bare minimum I/O support thru 'std::cout' and 'std::cin'. It is usually enough for a program to be executable from other program or from script and also can be used by human directly from console. It won't be widely popular since average human expects down to key-press level interactive aid and hand holding that is not doable with cout and cin. If you want to have console I/O that can be made decent enough to that level then you have to use something outside of C++ standard. For example try PDCurses library: http://pdcurses.sourceforge.net/ |
| ram@zedat.fu-berlin.de (Stefan Ram): Mar 22 07:18PM >How do I make a console text editor in C++? I have writte a console text editor for my C++ course as an example in the lesson about reading input from the console. #include <iostream> #include <ostream> #include <istream> #include <cstdlib> int arg( ::std::string & s ){ return atoi( s.substr( 1 ).c_str() ); } int main() { ::std::cout << "i1 insert \"1\"\n+1 move cursor right\n-1 " " move cursor left\nd1 erase 1 character\n"; ::std::string s{ "alpha" }, command; int pos = 0; while( 1 ) { ::std::cout << s << '\n' << ::std::string( pos, ' ' ) << '^' << '\n'; ::std::cin >> command; switch( command.at( 0 )) { case '+': pos += arg( command ); break; case '-': pos -= arg( command ); break; case 'i': s.insert( pos, command.substr( 1 )); break; case 'e': s.erase( pos, arg( command )); break; }}} A session transcript (the user input is: »+2«, »i__«, »-1«, and »e2«, i.e., »move right by 2«, »insert "__"«, »move left«, and »erase two characters«): i1 insert "1" +1 move cursor right -1 move cursor left d1 erase 1 character alpha ^ +2 alpha ^ i__ al__pha ^ -1 al__pha ^ e2 a_pha ^ |
| Chris Vine <chris@cvine--nospam--.freeserve.co.uk>: Mar 22 07:07PM On Sun, 22 Mar 2015 11:12:14 +0100 David Brown <david.brown@hesbynett.no> wrote: [snip] > three or four regulars who only post insults. (Brian beware - > swearing /is/ allowed in s.e.d., and you will have no chance of > stopping it.) No, I just discounted the "sane radical" option as too absurd to contemplate. I believe history has proven me to be right. He has since claimed a divine mandate for leading future C++ development efforts ('I claim to represent the "clear vision" alternative that Scott talks about'): https://groups.google.com/forum/#!topic/comp.lang.c++/5q7jqe6GPiA which ridiculously overestimates his programming abilities and seems evidence of mild mental illness and a messiah complex. And he has since posted at great length that "I'm letting others know the source of my help" which is off topic and seems designed to undermine christian faith by making it laughable. As a christian, I find it all quite painful. Brian needs to fuck off. Chris |
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