Flatten all tags of the dist tree of less.

1 files changed, 0 insertions, 406 deletions

diff --git a/contrib/less/input.c b/contrib/less/input.c
deleted file mode 100644
index 1129a7b..0000000
--- a/contrib/less/input.c
+++ /dev/null
@@ -1,406 +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 getting lines of input 
- * from the file being viewed.
- *
- * When we speak of "lines" here, we mean PRINTABLE lines;
- * lines processed with respect to the screen width.
- * We use the term "raw line" to refer to lines simply
- * delimited by newlines; not processed with respect to screen width.
- */
-
-#include "less.h"
-
-extern int squeeze;
-extern int chopline;
-extern int hshift;
-extern int quit_if_one_screen;
-extern int sigs;
-extern int ignore_eoi;
-extern int status_col;
-extern POSITION start_attnpos;
-extern POSITION end_attnpos;
-#if HILITE_SEARCH
-extern int hilite_search;
-extern int size_linebuf;
-#endif
-
-/*
- * Get the next line.
- * A "current" position is passed and a "new" position is returned.
- * The current position is the position of the first character of
- * a line.  The new position is the position of the first character
- * of the NEXT line.  The line obtained is the line starting at curr_pos.
- */
-	public POSITION
-forw_line(curr_pos)
-	POSITION curr_pos;
-{
-	POSITION base_pos;
-	POSITION new_pos;
-	register int c;
-	int blankline;
-	int endline;
-	int backchars;
-
-	if (curr_pos == NULL_POSITION)
-	{
-		null_line();
-		return (NULL_POSITION);
-	}
-#if HILITE_SEARCH
-	if (hilite_search == OPT_ONPLUS || status_col)
-		/*
-		 * If we are ignoring EOI (command F), only prepare
-		 * one line ahead, to avoid getting stuck waiting for
-		 * slow data without displaying the data we already have.
-		 * If we're not ignoring EOI, we *could* do the same, but
-		 * for efficiency we prepare several lines ahead at once.
-		 */
-		prep_hilite(curr_pos, curr_pos + 3*size_linebuf, 
-				ignore_eoi ? 1 : -1);
-#endif
-	if (ch_seek(curr_pos))
-	{
-		null_line();
-		return (NULL_POSITION);
-	}
-
-	base_pos = curr_pos;
-	for (;;)
-	{
-		if (ABORT_SIGS())
-		{
-			null_line();
-			return (NULL_POSITION);
-		}
-		c = ch_back_get();
-		if (c == EOI)
-			break;
-		if (c == '\n')
-		{
-			(void) ch_forw_get();
-			break;
-		}
-		--base_pos;
-	}
-
- 	prewind();
-	plinenum(base_pos);
-	(void) ch_seek(base_pos);
-	while (base_pos < curr_pos)
-	{
-		if (ABORT_SIGS())
-		{
-			null_line();
-			return (NULL_POSITION);
-		}
-		c = ch_forw_get();
-		backchars = pappend(c, base_pos);
-		base_pos++;
-		if (backchars > 0)
-		{
-			pshift_all();
-			base_pos -= backchars;
-			while (--backchars >= 0)
-				(void) ch_back_get();
-		}
-	}
-	(void) pflushmbc();
-	pshift_all();
-
-	c = ch_forw_get();
-	if (c == EOI)
-	{
-		null_line();
-		return (NULL_POSITION);
-	}
-	blankline = (c == '\n' || c == '\r');
-
-	for (;;)
-	{
-		if (ABORT_SIGS())
-		{
-			null_line();
-			return (NULL_POSITION);
-		}
-		if (c == '\n' || c == EOI)
-		{
-			/*
-			 * End of the line.
-			 */
-			backchars = pflushmbc();
-			new_pos = ch_tell();
-			if (backchars > 0 && !chopline && hshift == 0)
-			{
-				new_pos -= backchars + 1;
-				endline = FALSE;
-			} else
-				endline = TRUE;
-			break;
-		}
-		if (c != '\r')
-			blankline = 0;
-
-		/*
-		 * Append the char to the line and get the next char.
-		 */
-		backchars = pappend(c, ch_tell()-1);
-		if (backchars > 0)
-		{
-			/*
-			 * The char won't fit in the line; the line
-			 * is too long to print in the screen width.
-			 * End the line here.
-			 */
-			if (chopline || hshift > 0)
-			{
-				do
-				{
-					c = ch_forw_get();
-				} while (c != '\n' && c != EOI);
-				new_pos = ch_tell();
-				endline = TRUE;
-				quit_if_one_screen = FALSE;
-			} else
-			{
-				new_pos = ch_tell() - backchars;
-				endline = FALSE;
-			}
-			break;
-		}
-		c = ch_forw_get();
-	}
-	pdone(endline);
-
-	if (squeeze && blankline)
-	{
-		/*
-		 * This line is blank.
-		 * Skip down to the last contiguous blank line
-		 * and pretend it is the one which we are returning.
-		 */
-		while ((c = ch_forw_get()) == '\n' || c == '\r')
-			if (ABORT_SIGS())
-			{
-				null_line();
-				return (NULL_POSITION);
-			}
-		if (c != EOI)
-			(void) ch_back_get();
-		new_pos = ch_tell();
-	}
-
-	return (new_pos);
-}
-
-/*
- * Get the previous line.
- * A "current" position is passed and a "new" position is returned.
- * The current position is the position of the first character of
- * a line.  The new position is the position of the first character
- * of the PREVIOUS line.  The line obtained is the one starting at new_pos.
- */
-	public POSITION
-back_line(curr_pos)
-	POSITION curr_pos;
-{
-	POSITION new_pos, begin_new_pos;
-	int c;
-	int endline;
-	int backchars;
-
-	if (curr_pos == NULL_POSITION || curr_pos <= ch_zero())
-	{
-		null_line();
-		return (NULL_POSITION);
-	}
-#if HILITE_SEARCH
-	if (hilite_search == OPT_ONPLUS || status_col)
-		prep_hilite((curr_pos < 3*size_linebuf) ? 
-				0 : curr_pos - 3*size_linebuf, curr_pos, -1);
-#endif
-	if (ch_seek(curr_pos-1))
-	{
-		null_line();
-		return (NULL_POSITION);
-	}
-
-	if (squeeze)
-	{
-		/*
-		 * Find out if the "current" line was blank.
-		 */
-		(void) ch_forw_get();	/* Skip the newline */
-		c = ch_forw_get();	/* First char of "current" line */
-		(void) ch_back_get();	/* Restore our position */
-		(void) ch_back_get();
-
-		if (c == '\n' || c == '\r')
-		{
-			/*
-			 * The "current" line was blank.
-			 * Skip over any preceding blank lines,
-			 * since we skipped them in forw_line().
-			 */
-			while ((c = ch_back_get()) == '\n' || c == '\r')
-				if (ABORT_SIGS())
-				{
-					null_line();
-					return (NULL_POSITION);
-				}
-			if (c == EOI)
-			{
-				null_line();
-				return (NULL_POSITION);
-			}
-			(void) ch_forw_get();
-		}
-	}
-
-	/*
-	 * Scan backwards until we hit the beginning of the line.
-	 */
-	for (;;)
-	{
-		if (ABORT_SIGS())
-		{
-			null_line();
-			return (NULL_POSITION);
-		}
-		c = ch_back_get();
-		if (c == '\n')
-		{
-			/*
-			 * This is the newline ending the previous line.
-			 * We have hit the beginning of the line.
-			 */
-			new_pos = ch_tell() + 1;
-			break;
-		}
-		if (c == EOI)
-		{
-			/*
-			 * We have hit the beginning of the file.
-			 * This must be the first line in the file.
-			 * This must, of course, be the beginning of the line.
-			 */
-			new_pos = ch_tell();
-			break;
-		}
-	}
-
-	/*
-	 * Now scan forwards from the beginning of this line.
-	 * We keep discarding "printable lines" (based on screen width)
-	 * until we reach the curr_pos.
-	 *
-	 * {{ This algorithm is pretty inefficient if the lines
-	 *    are much longer than the screen width, 
-	 *    but I don't know of any better way. }}
-	 */
-	if (ch_seek(new_pos))
-	{
-		null_line();
-		return (NULL_POSITION);
-	}
-	endline = FALSE;
-	prewind();
-	plinenum(new_pos);
-    loop:
-	begin_new_pos = new_pos;
-	(void) ch_seek(new_pos);
-
-	do
-	{
-		c = ch_forw_get();
-		if (c == EOI || ABORT_SIGS())
-		{
-			null_line();
-			return (NULL_POSITION);
-		}
-		new_pos++;
-		if (c == '\n')
-		{
-			backchars = pflushmbc();
-			if (backchars > 0 && !chopline && hshift == 0)
-			{
-				backchars++;
-				goto shift;
-			}
-			endline = TRUE;
-			break;
-		}
-		backchars = pappend(c, ch_tell()-1);
-		if (backchars > 0)
-		{
-			/*
-			 * Got a full printable line, but we haven't
-			 * reached our curr_pos yet.  Discard the line
-			 * and start a new one.
-			 */
-			if (chopline || hshift > 0)
-			{
-				endline = TRUE;
-				quit_if_one_screen = FALSE;
-				break;
-			}
-		shift:
-			pshift_all();
-			while (backchars-- > 0)
-			{
-				(void) ch_back_get();
-				new_pos--;
-			}
-			goto loop;
-		}
-	} while (new_pos < curr_pos);
-
-	pdone(endline);
-
-	return (begin_new_pos);
-}
-
-/*
- * Set attnpos.
- */
-	public void
-set_attnpos(pos)
-	POSITION pos;
-{
-	int c;
-
-	if (pos != NULL_POSITION)
-	{
-		if (ch_seek(pos))
-			return;
-		for (;;)
-		{
-			c = ch_forw_get();
-			if (c == EOI)
-				return;
-			if (c != '\n' && c != '\r')
-				break;
-			pos++;
-		}
-	}
-	start_attnpos = pos;
-	for (;;)
-	{
-		c = ch_forw_get();
-		pos++;
-		if (c == EOI || c == '\n' || c == '\r')
-			break;
-	}
-	end_attnpos = pos;
-}