First came vi, then emacs, then jimmy - the extensible file editor.
- Terminals
- Raw vs cannonical mode
- Carriage-return-buffered input
tcsetattr/tcgetattr- Edit terminal features
- Raw vs cannonical mode
- Errors
errnoperror
- Macro functions
- VT100 escape sequences
- http://vt100.net/docs/vt100-ug/chapter3.html
- ncurses supports more via querying the terminfo database to work out supported capabilities
sys/ioctl.h- Terminal window size operations
free,realloc,memcpy- Feature testing macros
- https://www.gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html
gcc -ansiincludes only C library features unless explicitly request by feature macros- larger standards will clobber eachother's function names
- preprocessor directives declare dependencies in a self-contained way
- for each macro defined, the compiler makes more facilites available