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Make terminal ui binaries work well everywhere

Browse source 
Here's some screenshots of an emulator tui program that was compiled on
Linux, then scp'd it to Windows, Mac, and FreeBSD.

https://justine.storage.googleapis.com/blinkenlights-cmdexe.png
https://justine.storage.googleapis.com/blinkenlights-imac.png
https://justine.storage.googleapis.com/blinkenlights-freebsd.png
https://justine.storage.googleapis.com/blinkenlights-lisp.png

How is this even possible that we have a nontrivial ui binary that just
works on Mac, Windows, Linux, and BSD? Surely a first ever achievement.

Fixed many bugs. Bootstrapped John McCarthy's metacircular evaluator on
bare metal in half the size of Altair BASIC (about 2.5kb) and ran it in
emulator for fun and profit.
This commit is contained in:
Justine Tunney 2020-10-10 21:18:53 -07:00
parent 680daf1210
commit 9e3e985ae5
276 changed files with 7026 additions and 3790 deletions
Download patch file Download diff file Expand all files Collapse all files

22
libc/fmt/palandprintf.c
View file

@ -92,14 +92,21 @@ static int ppatoi(const char **str) {
*
* Precision Modifiers
*
* - `%.8s` supplied character length (ignore nul terminator)
* - `%.*s` supplied character length argument (ignore nul terminator)
* - `%.8s` supplied byte length (obeys nul terminator)
* - `%.*s` supplied byte length argument (obeys nul terminator)
* - `%`.*s` supplied byte length argument c escaped (ignores nul terminator)
* - `%#.*s` supplied byte length argument visualized (ignores nul terminator)
* - `%.*hs` supplied char16_t length argument (obeys nul terminator)
* - `%.*ls` supplied wchar_t length argument (obeys nul terminator)
*
* Formatting Modifiers
*
* - `%,d` thousands separators
* - `%'s` escaped c string literal
* - `%'c` escaped c character literal
* - `%`c` c escaped character
* - `%`'c` c escaped character quoted
* - `%`s` c escaped string
* - `%`'s` c escaped string quoted
* - `%`s` escaped double quoted c string literal
* - `%`c` escaped double quoted c character literal
* - `%+d` plus leftpad if positive (aligns w/ negatives)
@ -114,7 +121,7 @@ hidden int palandprintf(void *fn, void *arg, const char *format, va_list va) {
void *p;
char qchar;
long double ldbl;
wchar_t charbuf[3];
wchar_t charbuf[1];
const char *alphabet;
int (*out)(long, void *);
unsigned char signbit, log2base;
@ -281,14 +288,15 @@ hidden int palandprintf(void *fn, void *arg, const char *format, va_list va) {
break;
case 'c':
precision = 1;
flags |= FLAGS_PRECISION;
qchar = '\'';
p = charbuf;
charbuf[0] = va_arg(va, int);
charbuf[1] = L'\0';
charbuf[0] = va_arg(va, int); /* assume little endian */
goto showstr;
case 'm':
p = weaken(strerror)(lasterr);
p = weaken(strerror) ? weaken(strerror)(lasterr) : "?";
signbit = 0;
goto showstr;