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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/stdio/stdio.h"
/**
* Formats and writes string to stdout.
*
* Cosmopolitan supports most of the standard formatting behaviors
* described by `man 3 printf`, in addition to the following:
*
* - `%jd`, `%jx`, etc. are {,u}intmax_t which in Cosmopolitan is 128-bit.
*
* - `%'d` or `%,d` may be used to insert thousands separators. The prior is
* consistent with C; the latter is consistent with Python.
*
* - `%m` inserts strerror(errno) into the formatted output. This is
* consistent with glibc, musl, and uclibc.
*
* - `%n` inserts "\n" on non-Windows and "\r\n" on Windows. This is the
* same behavior as Java. It's incompatible with glibc's behavior,
* since that's problematic according to Android's security team.
*
* - `%hs` converts UTF-16/UCS-2 → UTF-8, which can be helpful on Windows.
* Formatting (e.g. %-10hs) will use monospace display width rather
* than string length or codepoint count.
*
* - `%ls` (or `%Ls`) converts UTF-32 → UTF-8. Formatting (e.g. %-10ls)
* will use monospace display width rather than string length.
*
* - The `%#s` and `%#c` alternate forms display values using the
* standard IBM standard 256-letter alphabet. Using `%#.*s` to specify
* length will allow true binary (i.e. with NULs) to be formatted.
*
* - The `%'s` and `%'c` alternate forms are Cosmopolitan extensions for
* escaping string literals for C/C++ and Python. The outer quotation
* marks can be added automatically using ``%`s``. If constexpr format
* strings are used, we can avoid linking cescapec() too.
*
* - The backtick modifier (``%`s`` and ``%`c``) and repr() directive
* (`%r`) both ask the formatting machine to represent values as real
* code rather than using arbitrary traditions for displaying values.
* This means it implies the quoting modifier, wraps the value with
* {,u,L}['"] quotes, displays NULL as "NULL" rather than "(null)".
*
* @see __fmt() for intuitive reference documentation
* @see {,v}{,s{,n},{,{,x}as},f,d}printf
*/
int(printf)(const char* fmt, ...) {
int rc;
va_list va;
va_start(va, fmt);
rc = (vfprintf)(stdout, fmt, va);
va_end(va);
return rc;
}
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