Flatten all tags of the dist tree of less.

1 files changed, 0 insertions, 615 deletions

diff --git a/contrib/less/output.c b/contrib/less/output.c
deleted file mode 100644
index 9c9d4ac..0000000
--- a/contrib/less/output.c
+++ /dev/null
@@ -1,615 +0,0 @@
-/*
- * Copyright (C) 1984-2007  Mark Nudelman
- *
- * You may distribute under the terms of either the GNU General Public
- * License or the Less License, as specified in the README file.
- *
- * For more information about less, or for information on how to 
- * contact the author, see the README file.
- */
-
-
-/*
- * High level routines dealing with the output to the screen.
- */
-
-#include "less.h"
-#if MSDOS_COMPILER==WIN32C
-#include "windows.h"
-#endif
-
-public int errmsgs;	/* Count of messages displayed by error() */
-public int need_clr;
-public int final_attr;
-public int at_prompt;
-
-extern int sigs;
-extern int sc_width;
-extern int so_s_width, so_e_width;
-extern int screen_trashed;
-extern int any_display;
-extern int is_tty;
-extern int oldbot;
-
-#if MSDOS_COMPILER==BORLANDC || MSDOS_COMPILER==DJGPPC
-extern int ctldisp;
-extern int nm_fg_color, nm_bg_color;
-extern int bo_fg_color, bo_bg_color;
-extern int ul_fg_color, ul_bg_color;
-extern int so_fg_color, so_bg_color;
-extern int bl_fg_color, bl_bg_color;
-#endif
-
-/*
- * Display the line which is in the line buffer.
- */
-	public void
-put_line()
-{
-	register int c;
-	register int i;
-	int a;
-
-	if (ABORT_SIGS())
-	{
-		/*
-		 * Don't output if a signal is pending.
-		 */
-		screen_trashed = 1;
-		return;
-	}
-
-	final_attr = AT_NORMAL;
-
-	for (i = 0;  (c = gline(i, &a)) != '\0';  i++)
-	{
-		at_switch(a);
-		final_attr = a;
-		if (c == '\b')
-			putbs();
-		else
-			putchr(c);
-	}
-
-	at_exit();
-}
-
-static char obuf[OUTBUF_SIZE];
-static char *ob = obuf;
-
-/*
- * Flush buffered output.
- *
- * If we haven't displayed any file data yet,
- * output messages on error output (file descriptor 2),
- * otherwise output on standard output (file descriptor 1).
- *
- * This has the desirable effect of producing all
- * error messages on error output if standard output
- * is directed to a file.  It also does the same if
- * we never produce any real output; for example, if
- * the input file(s) cannot be opened.  If we do
- * eventually produce output, code in edit() makes
- * sure these messages can be seen before they are
- * overwritten or scrolled away.
- */
-	public void
-flush()
-{
-	register int n;
-	register int fd;
-
-	n = ob - obuf;
-	if (n == 0)
-		return;
-#if MSDOS_COMPILER==WIN32C
-	if (is_tty && any_display)
-	{
-		char *op;
-		DWORD nwritten = 0;
-		CONSOLE_SCREEN_BUFFER_INFO scr;
-		int row;
-		int col;
-		int olen;
-		extern HANDLE con_out;
-
-		olen = ob - obuf;
-		/*
-		 * There is a bug in Win32 WriteConsole() if we're
-		 * writing in the last cell with a different color.
-		 * To avoid color problems in the bottom line,
-		 * we scroll the screen manually, before writing.
-		 */
-		GetConsoleScreenBufferInfo(con_out, &scr);
-		col = scr.dwCursorPosition.X;
-		row = scr.dwCursorPosition.Y;
-		for (op = obuf;  op < obuf + olen;  op++)
-		{
-			if (*op == '\n')
-			{
-				col = 0;
-				row++;
-			} else if (*op == '\r')
-			{
-				col = 0;
-			} else
-			{
-				col++;
-				if (col >= sc_width)
-				{
-					col = 0;
-					row++;
-				}
-			}
-		}
-		if (row > scr.srWindow.Bottom)
-			win32_scroll_up(row - scr.srWindow.Bottom);
-		WriteConsole(con_out, obuf, olen, &nwritten, NULL);
-		ob = obuf;
-		return;
-	}
-#else
-#if MSDOS_COMPILER==MSOFTC
-	if (is_tty && any_display)
-	{
-		*ob = '\0';
-		_outtext(obuf);
-		ob = obuf;
-		return;
-	}
-#else
-#if MSDOS_COMPILER==BORLANDC || MSDOS_COMPILER==DJGPPC
-	if (is_tty && any_display)
-	{
-		*ob = '\0';
-		if (ctldisp != OPT_ONPLUS)
-			cputs(obuf);
-		else
-		{
-			/*
-			 * Look for SGR escape sequences, and convert them
-			 * to color commands.  Replace bold, underline,
-			 * and italic escapes into colors specified via
-			 * the -D command-line option.
-			 */
-			char *anchor, *p, *p_next;
-			int buflen = ob - obuf;
-			unsigned char fg, bg, norm_attr;
-			/*
-			 * Only dark colors mentioned here, so that
-			 * bold has visible effect.
-			 */
-			static enum COLORS screen_color[] = {
-				BLACK, RED, GREEN, BROWN,
-				BLUE, MAGENTA, CYAN, LIGHTGRAY
-			};
-
-			/* Normal text colors are used as baseline. */
-			bg = nm_bg_color & 0xf;
-			fg = nm_fg_color & 0xf;
-			norm_attr = (bg << 4) | fg;
-			for (anchor = p_next = obuf;
-			     (p_next = memchr (p_next, ESC,
-					       buflen - (p_next - obuf)))
-			       != NULL; )
-			{
-				p = p_next;
-
-				/*
-				 * Handle the null escape sequence
-				 * (ESC-[m), which is used to restore
-				 * the original color.
-				 */
-				if (p[1] == '[' && is_ansi_end(p[2]))
-				{
-					textattr(norm_attr);
-					p += 3;
-					anchor = p_next = p;
-					continue;
-				}
-
-				if (p[1] == '[')	/* "Esc-[" sequence */
-				{
-					/*
-					 * If some chars seen since
-					 * the last escape sequence,
-					 * write it out to the screen
-					 * using current text attributes.
-					 */
-					if (p > anchor)
-					{
-						*p = '\0';
-						cputs (anchor);
-						*p = ESC;
-						anchor = p;
-					}
-					p += 2;
-					p_next = p;
-					while (!is_ansi_end(*p))
-					{
-						char *q;
-						long code = strtol(p, &q, 10);
-
-						if (!*q)
-						{
-							/*
-							 * Incomplete sequence.
-							 * Leave it unprocessed
-							 * in the buffer.
-							 */
-							int slop = q - anchor;
-							strcpy(obuf, anchor);
-							ob = &obuf[slop];
-							return;
-						}
-
-						if (q == p
-						    || code > 49 || code < 0
-						    || (!is_ansi_end(*q)
-							&& *q != ';'))
-						{
-							p_next = q;
-							break;
-						}
-						if (*q == ';')
-							q++;
-
-						switch (code)
-						{
-						case 1:	/* bold on */
-							fg = bo_fg_color;
-							bg = bo_bg_color;
-							break;
-						case 3:	/* italic on */
-							fg = so_fg_color;
-							bg = so_bg_color;
-							break;
-						case 4:	/* underline on */
-							fg = ul_fg_color;
-							bg = ul_bg_color;
-							break;
-						case 8:	/* concealed on */
-							fg = (bg & 7) | 8;
-							break;
-						case 0:	/* all attrs off */
-						case 22:/* bold off */
-						case 23:/* italic off */
-						case 24:/* underline off */
-							fg = nm_fg_color;
-							bg = nm_bg_color;
-							break;
-						case 30: case 31: case 32:
-						case 33: case 34: case 35:
-						case 36: case 37:
-							fg = (fg & 8) | (screen_color[code - 30]);
-							break;
-						case 39: /* default fg */
-							fg = nm_fg_color;
-							break;
-						case 40: case 41: case 42:
-						case 43: case 44: case 45:
-						case 46: case 47:
-							bg = (bg & 8) | (screen_color[code - 40]);
-							break;
-						case 49: /* default fg */
-							bg = nm_bg_color;
-							break;
-						}
-						p = q;
-					}
-					if (is_ansi_end(*p) && p > p_next)
-					{
-						bg &= 15;
-						fg &= 15;
-						textattr ((bg << 4)| fg);
-						p_next = anchor = p + 1;
-					} else
-						break;
-				} else
-					p_next++;
-			}
-
-			/* Output what's left in the buffer.  */
-			cputs (anchor);
-		}
-		ob = obuf;
-		return;
-	}
-#endif
-#endif
-#endif
-	fd = (any_display) ? 1 : 2;
-	if (write(fd, obuf, n) != n)
-		screen_trashed = 1;
-	ob = obuf;
-}
-
-/*
- * Output a character.
- */
-	public int
-putchr(c)
-	int c;
-{
-#if 0 /* fake UTF-8 output for testing */
-	extern int utf_mode;
-	if (utf_mode)
-	{
-		static char ubuf[MAX_UTF_CHAR_LEN];
-		static int ubuf_len = 0;
-		static int ubuf_index = 0;
-		if (ubuf_len == 0)
-		{
-			ubuf_len = utf_len(c);
-			ubuf_index = 0;
-		}
-		ubuf[ubuf_index++] = c;
-		if (ubuf_index < ubuf_len)
-			return c;
-		c = get_wchar(ubuf) & 0xFF;
-		ubuf_len = 0;
-	}
-#endif
-	if (need_clr)
-	{
-		need_clr = 0;
-		clear_bot();
-	}
-#if MSDOS_COMPILER
-	if (c == '\n' && is_tty)
-	{
-		/* remove_top(1); */
-		putchr('\r');
-	}
-#else
-#ifdef _OSK
-	if (c == '\n' && is_tty)  /* In OS-9, '\n' == 0x0D */
-		putchr(0x0A);
-#endif
-#endif
-	/*
-	 * Some versions of flush() write to *ob, so we must flush
-	 * when we are still one char from the end of obuf.
-	 */
-	if (ob >= &obuf[sizeof(obuf)-1])
-		flush();
-	*ob++ = c;
-	at_prompt = 0;
-	return (c);
-}
-
-/*
- * Output a string.
- */
-	public void
-putstr(s)
-	register char *s;
-{
-	while (*s != '\0')
-		putchr(*s++);
-}
-
-
-/*
- * Convert an integral type to a string.
- */
-#define TYPE_TO_A_FUNC(funcname, type) \
-void funcname(num, buf) \
-	type num; \
-	char *buf; \
-{ \
-	int neg = (num < 0); \
-	char tbuf[INT_STRLEN_BOUND(num)+2]; \
-	register char *s = tbuf + sizeof(tbuf); \
-	if (neg) num = -num; \
-	*--s = '\0'; \
-	do { \
-		*--s = (num % 10) + '0'; \
-	} while ((num /= 10) != 0); \
-	if (neg) *--s = '-'; \
-	strcpy(buf, s); \
-}
-
-TYPE_TO_A_FUNC(postoa, POSITION)
-TYPE_TO_A_FUNC(linenumtoa, LINENUM)
-TYPE_TO_A_FUNC(inttoa, int)
-
-/*
- * Output an integer in a given radix.
- */
-	static int
-iprint_int(num)
-	int num;
-{
-	char buf[INT_STRLEN_BOUND(num)];
-
-	inttoa(num, buf);
-	putstr(buf);
-	return (strlen(buf));
-}
-
-/*
- * Output a line number in a given radix.
- */
-	static int
-iprint_linenum(num)
-	LINENUM num;
-{
-	char buf[INT_STRLEN_BOUND(num)];
-
-	linenumtoa(num, buf);
-	putstr(buf);
-	return (strlen(buf));
-}
-
-/*
- * This function implements printf-like functionality
- * using a more portable argument list mechanism than printf's.
- */
-	static int
-less_printf(fmt, parg)
-	register char *fmt;
-	PARG *parg;
-{
-	register char *s;
-	register int col;
-
-	col = 0;
-	while (*fmt != '\0')
-	{
-		if (*fmt != '%')
-		{
-			putchr(*fmt++);
-			col++;
-		} else
-		{
-			++fmt;
-			switch (*fmt++)
-			{
-			case 's':
-				s = parg->p_string;
-				parg++;
-				while (*s != '\0')
-				{
-					putchr(*s++);
-					col++;
-				}
-				break;
-			case 'd':
-				col += iprint_int(parg->p_int);
-				parg++;
-				break;
-			case 'n':
-				col += iprint_linenum(parg->p_linenum);
-				parg++;
-				break;
-			}
-		}
-	}
-	return (col);
-}
-
-/*
- * Get a RETURN.
- * If some other non-trivial char is pressed, unget it, so it will
- * become the next command.
- */
-	public void
-get_return()
-{
-	int c;
-
-#if ONLY_RETURN
-	while ((c = getchr()) != '\n' && c != '\r')
-		bell();
-#else
-	c = getchr();
-	if (c != '\n' && c != '\r' && c != ' ' && c != READ_INTR)
-		ungetcc(c);
-#endif
-}
-
-/*
- * Output a message in the lower left corner of the screen
- * and wait for carriage return.
- */
-	public void
-error(fmt, parg)
-	char *fmt;
-	PARG *parg;
-{
-	int col = 0;
-	static char return_to_continue[] = "  (press RETURN)";
-
-	errmsgs++;
-
-	if (any_display && is_tty)
-	{
-		if (!oldbot)
-			squish_check();
-		at_exit();
-		clear_bot();
-		at_enter(AT_STANDOUT);
-		col += so_s_width;
-	}
-
-	col += less_printf(fmt, parg);
-
-	if (!(any_display && is_tty))
-	{
-		putchr('\n');
-		return;
-	}
-
-	putstr(return_to_continue);
-	at_exit();
-	col += sizeof(return_to_continue) + so_e_width;
-
-	get_return();
-	lower_left();
-
-	if (col >= sc_width)
-		/*
-		 * Printing the message has probably scrolled the screen.
-		 * {{ Unless the terminal doesn't have auto margins,
-		 *    in which case we just hammered on the right margin. }}
-		 */
-		screen_trashed = 1;
-
-	flush();
-}
-
-static char intr_to_abort[] = "... (interrupt to abort)";
-
-/*
- * Output a message in the lower left corner of the screen
- * and don't wait for carriage return.
- * Usually used to warn that we are beginning a potentially
- * time-consuming operation.
- */
-	public void
-ierror(fmt, parg)
-	char *fmt;
-	PARG *parg;
-{
-	at_exit();
-	clear_bot();
-	at_enter(AT_STANDOUT);
-	(void) less_printf(fmt, parg);
-	putstr(intr_to_abort);
-	at_exit();
-	flush();
-	need_clr = 1;
-}
-
-/*
- * Output a message in the lower left corner of the screen
- * and return a single-character response.
- */
-	public int
-query(fmt, parg)
-	char *fmt;
-	PARG *parg;
-{
-	register int c;
-	int col = 0;
-
-	if (any_display && is_tty)
-		clear_bot();
-
-	(void) less_printf(fmt, parg);
-	c = getchr();
-
-	if (!(any_display && is_tty))
-	{
-		putchr('\n');
-		return (c);
-	}
-
-	lower_left();
-	if (col >= sc_width)
-		screen_trashed = 1;
-	flush();
-
-	return (c);
-}