Return to word.c CVS log

Up to [local] / src / usr.bin / mg

Clean up the includes in mg.
This does the following:
Moves all POSIX headers from sysdef.h into the individual .c files so that
each file now only includes what it needs. All headers are properly sorted.
Moves the remainder of sysdef.h to other files (mostly def.h) and deletes
sysdef.h now that it's no longer contains anything.
Tweak a comment that references sysdef.h so that it no longer does that.
ok florian@

/*	$OpenBSD: word.c,v 1.17 2015/03/19 21:22:15 bcallah Exp $	*/

/* This file is in the public domain. */

/*
 *		Word mode commands.
 * The routines in this file implement commands that work word at a time.
 * There are all sorts of word mode commands.
 */

#include <sys/queue.h>
#include <signal.h>
#include <stdio.h>

#include "def.h"

RSIZE	countfword(void);

/*
 * Move the cursor backward by "n" words. All of the details of motion are
 * performed by the "backchar" and "forwchar" routines.
 */
/* ARGSUSED */
int
backword(int f, int n)
{
	if (n < 0)
		return (forwword(f | FFRAND, -n));
	if (backchar(FFRAND, 1) == FALSE)
		return (FALSE);
	while (n--) {
		while (inword() == FALSE) {
			if (backchar(FFRAND, 1) == FALSE)
				return (TRUE);
		}
		while (inword() != FALSE) {
			if (backchar(FFRAND, 1) == FALSE)
				return (TRUE);
		}
	}
	return (forwchar(FFRAND, 1));
}

/*
 * Move the cursor forward by the specified number of words.  All of the
 * motion is done by "forwchar".
 */
/* ARGSUSED */
int
forwword(int f, int n)
{
	if (n < 0)
		return (backword(f | FFRAND, -n));
	while (n--) {
		while (inword() == FALSE) {
			if (forwchar(FFRAND, 1) == FALSE)
				return (TRUE);
		}
		while (inword() != FALSE) {
			if (forwchar(FFRAND, 1) == FALSE)
				return (TRUE);
		}
	}
	return (TRUE);
}

/*
 * Move the cursor forward by the specified number of words.  As you move,
 * convert any characters to upper case.
 */
/* ARGSUSED */
int
upperword(int f, int n)
{
	int	c, s;
	RSIZE	size;

	if ((s = checkdirty(curbp)) != TRUE)
		return (s);
	if (curbp->b_flag & BFREADONLY) {
		dobeep();
		ewprintf("Buffer is read-only");
		return (FALSE);
	}

	if (n < 0)
		return (FALSE);
	while (n--) {
		while (inword() == FALSE) {
			if (forwchar(FFRAND, 1) == FALSE)
				return (TRUE);
		}
		size = countfword();
		undo_add_change(curwp->w_dotp, curwp->w_doto, size);

		while (inword() != FALSE) {
			c = lgetc(curwp->w_dotp, curwp->w_doto);
			if (ISLOWER(c) != FALSE) {
				c = TOUPPER(c);
				lputc(curwp->w_dotp, curwp->w_doto, c);
				lchange(WFFULL);
			}
			if (forwchar(FFRAND, 1) == FALSE)
				return (TRUE);
		}
	}
	return (TRUE);
}

/*
 * Move the cursor forward by the specified number of words.  As you move
 * convert characters to lower case.
 */
/* ARGSUSED */
int
lowerword(int f, int n)
{
	int	c, s;
	RSIZE	size;

	if ((s = checkdirty(curbp)) != TRUE)
		return (s);
	if (curbp->b_flag & BFREADONLY) {
		dobeep();
		ewprintf("Buffer is read-only");
		return (FALSE);
	}
	if (n < 0)
		return (FALSE);
	while (n--) {
		while (inword() == FALSE) {
			if (forwchar(FFRAND, 1) == FALSE)
				return (TRUE);
		}
		size = countfword();
		undo_add_change(curwp->w_dotp, curwp->w_doto, size);

		while (inword() != FALSE) {
			c = lgetc(curwp->w_dotp, curwp->w_doto);
			if (ISUPPER(c) != FALSE) {
				c = TOLOWER(c);
				lputc(curwp->w_dotp, curwp->w_doto, c);
				lchange(WFFULL);
			}
			if (forwchar(FFRAND, 1) == FALSE)
				return (TRUE);
		}
	}
	return (TRUE);
}

/*
 * Move the cursor forward by the specified number of words.  As you move
 * convert the first character of the word to upper case, and subsequent
 * characters to lower case.  Error if you try to move past the end of the
 * buffer.
 */
/* ARGSUSED */
int
capword(int f, int n)
{
	int	c, s;
	RSIZE	size;

	if ((s = checkdirty(curbp)) != TRUE)
		return (s);
	if (curbp->b_flag & BFREADONLY) {
		dobeep();
		ewprintf("Buffer is read-only");
		return (FALSE);
	}

	if (n < 0)
		return (FALSE);
	while (n--) {
		while (inword() == FALSE) {
			if (forwchar(FFRAND, 1) == FALSE)
				return (TRUE);
		}
		size = countfword();
		undo_add_change(curwp->w_dotp, curwp->w_doto, size);

		if (inword() != FALSE) {
			c = lgetc(curwp->w_dotp, curwp->w_doto);
			if (ISLOWER(c) != FALSE) {
				c = TOUPPER(c);
				lputc(curwp->w_dotp, curwp->w_doto, c);
				lchange(WFFULL);
			}
			if (forwchar(FFRAND, 1) == FALSE)
				return (TRUE);
			while (inword() != FALSE) {
				c = lgetc(curwp->w_dotp, curwp->w_doto);
				if (ISUPPER(c) != FALSE) {
					c = TOLOWER(c);
					lputc(curwp->w_dotp, curwp->w_doto, c);
					lchange(WFFULL);
				}
				if (forwchar(FFRAND, 1) == FALSE)
					return (TRUE);
			}
		}
	}
	return (TRUE);
}

/*
 * Count characters in word, from current position
 */
RSIZE
countfword()
{
	RSIZE		 size;
	struct line	*dotp;
	int		 doto;

	dotp = curwp->w_dotp;
	doto = curwp->w_doto;
	size = 0;

	while (inword() != FALSE) {
		if (forwchar(FFRAND, 1) == FALSE)
			/* hit the end of the buffer */
			goto out;
		++size;
	}
out:
	curwp->w_dotp = dotp;
	curwp->w_doto = doto;
	return (size);
}


/*
 * Kill forward by "n" words.
 */
/* ARGSUSED */
int
delfword(int f, int n)
{
	RSIZE		 size;
	struct line	*dotp;
	int		 doto;
	int s;

	if ((s = checkdirty(curbp)) != TRUE)
		return (s);
	if (curbp->b_flag & BFREADONLY) {
		dobeep();
		ewprintf("Buffer is read-only");
		return (FALSE);
	}
	if (n < 0)
		return (FALSE);

	/* purge kill buffer */
	if ((lastflag & CFKILL) == 0)
		kdelete();

	thisflag |= CFKILL;
	dotp = curwp->w_dotp;
	doto = curwp->w_doto;
	size = 0;

	while (n--) {
		while (inword() == FALSE) {
			if (forwchar(FFRAND, 1) == FALSE)
				/* hit the end of the buffer */
				goto out;
			++size;
		}
		while (inword() != FALSE) {
			if (forwchar(FFRAND, 1) == FALSE)
				/* hit the end of the buffer */
				goto out;
			++size;
		}
	}
out:
	curwp->w_dotp = dotp;
	curwp->w_doto = doto;
	return (ldelete(size, KFORW));
}

/*
 * Kill backwards by "n" words.  The rules for success and failure are now
 * different, to prevent strange behavior at the start of the buffer.  The
 * command only fails if something goes wrong with the actual delete of the
 * characters.  It is successful even if no characters are deleted, or if you
 * say delete 5 words, and there are only 4 words left.  I considered making
 * the first call to "backchar" special, but decided that that would just be
 * weird. Normally this is bound to "M-Rubout" and to "M-Backspace".
 */
/* ARGSUSED */
int
delbword(int f, int n)
{
	RSIZE	size;
	int s;

	if ((s = checkdirty(curbp)) != TRUE)
		return (s);
	if (curbp->b_flag & BFREADONLY) {
		dobeep();
		ewprintf("Buffer is read-only");
		return (FALSE);
	}

	if (n < 0)
		return (FALSE);

	/* purge kill buffer */
	if ((lastflag & CFKILL) == 0)
		kdelete();
	thisflag |= CFKILL;
	if (backchar(FFRAND, 1) == FALSE)
		/* hit buffer start */
		return (TRUE);

	/* one deleted */
	size = 1;
	while (n--) {
		while (inword() == FALSE) {
			if (backchar(FFRAND, 1) == FALSE)
				/* hit buffer start */
				goto out;
			++size;
		}
		while (inword() != FALSE) {
			if (backchar(FFRAND, 1) == FALSE)
				/* hit buffer start */
				goto out;
			++size;
		}
	}
	if (forwchar(FFRAND, 1) == FALSE)
		return (FALSE);

	/* undo assumed delete */
	--size;
out:
	return (ldelete(size, KBACK));
}

/*
 * Return TRUE if the character at dot is a character that is considered to be
 * part of a word. The word character list is hard coded. Should be settable.
 */
int
inword(void)
{
	/* can't use lgetc in ISWORD due to bug in OSK cpp */
	return (curwp->w_doto != llength(curwp->w_dotp) &&
	    ISWORD(curwp->w_dotp->l_text[curwp->w_doto]));
}