<?php declare(strict_types=1);

namespace Kilo;

// -----------------------------------------------------------------------------
// ! App Constants
// -----------------------------------------------------------------------------
define('KILO_VERSION', '0.0.1');
define('KILO_TAB_STOP', 4);
define('KILO_QUIT_TIMES', 3);

// -----------------------------------------------------------------------------
// ! Misc I/O constants
// -----------------------------------------------------------------------------

define('STDIN_FILENO', 0);
define('STDOUT_FILENO', 1);
define('STDERR_FILENO', 2);
define('TCSAFLUSH', 2);

// -----------------------------------------------------------------------------
// ! Termios flags and constants
// -----------------------------------------------------------------------------

/* Input modes */
define('IGNBRK', (1 << 0));	/* Ignore break condition.  */
define('BRKINT', (1 << 1));	/* Signal interrupt on break.  */
define('IGNPAR', (1 << 2));	/* Ignore characters with parity errors.  */
define('PARMRK', (1 << 3));	/* Mark parity and framing errors.  */
define('INPCK', (1 << 4));	/* Enable input parity check.  */
define('ISTRIP', (1 << 5));	/* Strip 8th bit off characters.  */
define('INLCR', (1 << 6));	/* Map NL to CR on input.  */
define('IGNCR', (1 << 7));	/* Ignore CR.  */
define('ICRNL', (1 << 8));	/* Map CR to NL on input.  */
define('IXON', (1 << 9));	/* Enable start/stop output control.  */
define('IXOFF', (1 << 10));	/* Enable start/stop input control.  */
define('IXANY', (1 << 11));	/* Any character will restart after stop.  */
define('IMAXBEL', (1 << 13));	/* Ring bell when input queue is full.  */
define('IUCLC', (1 << 14));	/* Translate upper case input to lower case. */

/* Output modes */
define('OPOST', (1 << 0));	/* Perform output processing.  */
define('ONLCR', (1 << 1));	/* Map NL to CR-NL on output.  */
define('OXTABS', (1 << 2));		/* Expand tabs to spaces.  */
define('ONOEOT', (1 << 3));	/* Discard EOT (^D) on output.  */
define('OCRNL', (1 << 4));	/* Map CR to NL.  */
define('ONOCR', (1 << 5));	/* Discard CR's when on column 0.  */
define('ONLRET', (1 << 6));	/* Move to column 0 on NL.  */
define('NLDLY', (3 << 8));	/* NL delay.  */
define('NL0', (0 << 8));	/* NL type 0.  */
define('NL1', (1 << 8));	/* NL type 1.  */
define('TABDLY', (3 << 10 | 1 << 2));	/* TAB delay.  */
define('TAB0', (0 << 10));	/* TAB delay type 0.  */
define('TAB1', (1 << 10));	/* TAB delay type 1.  */
define('TAB2', (2 << 10));	/* TAB delay type 2.  */
define('TAB3', (1 << 2));	/* Expand tabs to spaces.  */
define('CRDLY', (3 << 12));	/* CR delay.  */
define('CR0', (0 << 12));	/* CR delay type 0.  */
define('CR1', (1 << 12));	/* CR delay type 1.  */
define('CR2', (2 << 12));	/* CR delay type 2.  */
define('CR3', (3 << 12));	/* CR delay type 3.  */
define('FFDLY', (1 << 14));	/* FF delay.  */
define('FF0', (0 << 14));	/* FF delay type 0.  */
define('FF1', (1 << 14));	/* FF delay type 1.  */
define('BSDLY', (1 << 15));	/* BS delay.  */
define('BS0', (0 << 15));	/* BS delay type 0.  */
define('BS1', (1 << 15));	/* BS delay type 1.  */
define('VTDLY', (1 << 16));	/* VT delay.  */
define('VT0', (0 << 16));	/* VT delay type 0.  */
define('VT1', (1 << 16));	/* VT delay type 1.  */
define('OLCUC', (1 << 17));	/* Translate lower case output to upper case */
define('OFILL', (1 << 18));	/* Send fill characters for delays.  */
define('OFDEL', (1 << 19));	/* Fill is DEL.  */

/* Control modes */
define('CIGNORE', (1 << 0));	/* Ignore these control flags.  */
define('CS5', 0);		/* 5 bits per byte.  */
define('CS6', (1 << 8));	/* 6 bits per byte.  */
define('CS7', (1 << 9));	/* 7 bits per byte.  */
define('CS8', (CS6|CS7));	/* 8 bits per byte.  */
define('CSIZE', (CS5|CS6|CS7|CS8));	/* Number of bits per byte (mask).  */
define('CSTOPB', (1 << 10));	/* Two stop bits instead of one.  */
define('CREAD', (1 << 11));	/* Enable receiver.  */
define('PARENB', (1 << 12));	/* Parity enable.  */
define('PARODD', (1 << 13));	/* Odd parity instead of even.  */
define('HUPCL', (1 << 14));	/* Hang up on last close.  */
define('CLOCAL', (1 << 15));	/* Ignore modem status lines.  */
define('CRTSCTS', (1 << 16));	/* RTS/CTS flow control.  */
define('CRTS_IFLOW', CRTSCTS);		/* Compatibility.  */
define('CCTS_OFLOW', CRTSCTS);		/* Compatibility.  */
define('CDTRCTS', (1 << 17));	/* DTR/CTS flow control.  */
define('MDMBUF', (1 << 20));	/* DTR/DCD flow control.  */
define('CHWFLOW', (MDMBUF|CRTSCTS|CDTRCTS)); /* All types of flow control.  */

/* Local modes */
define('ECHOKE', (1 << 0));	/* Visual erase for KILL.  */
define('_ECHOE', (1 << 1));	/* Visual erase for ERASE.  */
define('ECHOE', _ECHOE);
define('_ECHOK', (1 << 2));	/* Echo NL after KILL.  */
define('ECHOK', _ECHOK);
define('_ECHO', (1 << 3));	/* Enable echo.  */
define('ECHO', _ECHO);
define('_ECHONL', (1 << 4));	/* Echo NL even if ECHO is off.  */
define('ECHONL', _ECHONL);
define('ECHOPRT', (1 << 5));	/* Hardcopy visual erase.  */
define('ECHOCTL', (1 << 6));	/* Echo control characters as ^X.  */
define('_ISIG', (1 << 7));	/* Enable signals.  */
define('ISIG', _ISIG);
define('_ICANON', (1 << 8));	/* Do erase and kill processing.  */
define('ICANON', _ICANON);
define('ALTWERASE', (1 << 9));	/* Alternate WERASE algorithm.  */
define('_IEXTEN', (1 << 10));	/* Enable DISCARD and LNEXT.  */
define('IEXTEN', _IEXTEN);
define('EXTPROC', (1 << 11));	/* External processing.  */
define('_TOSTOP', (1 << 22));	/* Send SIGTTOU for background output.  */
define('TOSTOP', _TOSTOP);
define('FLUSHO', (1 << 23));	/* Output being flushed (state).  */
define('XCASE', (1 << 24));	/* Canonical upper/lower case.  */
define('NOKERNINFO', (1 << 25));	/* Disable VSTATUS.  */
define('PENDIN', (1 << 29));	/* Retype pending input (state).  */
define('_NOFLSH', (1 << 31));	/* Disable flush after interrupt.  */
define('NOFLSH', _NOFLSH);

/* Control characters */
define('VEOF', 0);		/* End-of-file character [ICANON].  */
define('VEOL', 1);		/* End-of-line character [ICANON].  */
define('VEOL2', 2);		/* Second EOL character [ICANON].  */
define('VERASE', 3);		/* Erase character [ICANON].  */
define('VWERASE', 4);		/* Word-erase character [ICANON].  */
define('VKILL', 5);		/* Kill-line character [ICANON].  */
define('VREPRINT', 6);		/* Reprint-line character [ICANON].  */
define('VINTR', 8);		/* Interrupt character [ISIG].  */
define('VQUIT', 9);		/* Quit character [ISIG].  */
define('VSUSP', 10);		/* Suspend character [ISIG].  */
define('VDSUSP', 11);		/* Delayed suspend character [ISIG].  */
define('VSTART', 12);		/* Start (X-ON) character [IXON, IXOFF].  */
define('VSTOP', 13);		/* Stop (X-OFF) character [IXON, IXOFF].  */
define('VLNEXT', 14);		/* Literal-next character [IEXTEN].  */
define('VDISCARD', 15);		/* Discard character [IEXTEN].  */
define('VMIN', 16);		/* Minimum number of bytes read at once [!ICANON].  */
define('VTIME', 17);		/* Time-out value (tenths of a second) [!ICANON].  */
define('VSTATUS', 18);		/* Status character [ICANON].  */
define('NCCS', 20);		/* Value duplicated in <hurd/tioctl.defs>.  */

// -----------------------------------------------------------------------------
// ! IOCTL constants
// -----------------------------------------------------------------------------
define('TIOCGWINSZ', 0x5413);