+++ /dev/null
-/* $OpenBSD: word.c,v 1.15 2008/09/15 16:11:35 kjell 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 "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) {
- 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) {
- 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) {
- 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) {
- 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) {
- 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]));
-}
projects / pd_readline / blobdiff