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Re: [PATCH] enable number argument for transpose-words
- X-seq: zsh-workers 39027
- From: Han Pingtian <hanpt@xxxxxxxxxxxxxxxxxx>
- To: zsh-workers@xxxxxxx
- Subject: Re: [PATCH] enable number argument for transpose-words
- Date: Fri, 12 Aug 2016 10:54:02 +0800
- In-reply-to: <20160801103212.GA24067@localhost.localdomain>
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- References: <20160801103212.GA24067@localhost.localdomain>
On Mon, Aug 01, 2016 at 06:32:12PM +0800, Han Pingtian wrote:
> Looks like number argument doesn't work for transpose-words widget: if
> the number is even, there is no words transposed; if the number is odd,
> the behavior is the same of no number argument given.
>
> With this patch, current word will be transposed with the preious nth
> word if number argument n given.
>
> Signed-off-by: Han Pingtian <hanpt@xxxxxxxxxxxxxxxxxx>
> ---
> Src/Zle/zle_word.c | 90 +++++++++++++++++++++++++++++++-----------------------
> 1 file changed, 51 insertions(+), 39 deletions(-)
>
> diff --git a/Src/Zle/zle_word.c b/Src/Zle/zle_word.c
> index 3c1f26c..2a15171 100644
> --- a/Src/Zle/zle_word.c
> +++ b/Src/Zle/zle_word.c
> @@ -678,46 +678,54 @@ killword(char **args)
> int
> transposewords(UNUSED(char **args))
> {
> - int p1, p2, p3, p4, len, x = zlecs, pos;
> + int p1, p2, p3, p4, pt, len, x = zlecs, pos;
> ZLE_STRING_T temp, pp;
> int n = zmult;
> int neg = n < 0, ocs = zlecs;
>
> if (neg)
> n = -n;
> - while (n--) {
> - while (x != zlell && zleline[x] != ZWC('\n') && !ZC_iword(zleline[x]))
> - INCPOS(x);
> - if (x == zlell || zleline[x] == ZWC('\n')) {
> - x = zlecs;
> - while (x) {
> - if (ZC_iword(zleline[x]))
> - break;
> - pos = x;
> - DECPOS(pos);
> - if (zleline[pos] == ZWC('\n'))
> - break;
> - x = pos;
> - }
> - if (!x)
> - return 1;
> +
> + while (x != zlell && zleline[x] != ZWC('\n') && !ZC_iword(zleline[x]))
> + INCPOS(x);
> +
> + if (x == zlell || zleline[x] == ZWC('\n')) {
> + x = zlecs;
> + while (x) {
> + if (ZC_iword(zleline[x]))
> + break;
> pos = x;
> DECPOS(pos);
> if (zleline[pos] == ZWC('\n'))
> - return 1;
> - }
> - for (p4 = x; p4 != zlell && ZC_iword(zleline[p4]); INCPOS(p4))
> - ;
> - for (p3 = p4; p3; ) {
> - pos = p3;
> - DECPOS(pos);
> - if (!ZC_iword(zleline[pos]))
> break;
> - p3 = pos;
> + x = pos;
> }
> - if (!p3)
> + if (!x)
> return 1;
> - for (p2 = p3; p2; ) {
> + pos = x;
> + DECPOS(pos);
> + if (zleline[pos] == ZWC('\n'))
> + return 1;
> + }
> +
> + for (p4 = x; p4 != zlell && ZC_iword(zleline[p4]); INCPOS(p4))
> + ;
> +
> + for (p3 = p4; p3; ) {
> + pos = p3;
> + DECPOS(pos);
> + if (!ZC_iword(zleline[pos]))
> + break;
> + p3 = pos;
> + }
> +
> + if (!p3)
> + return 1;
> +
> + pt = p3;
> +
> + while (n--) {
> + for (p2 = pt; p2; ) {
> pos = p2;
> DECPOS(pos);
> if (ZC_iword(zleline[pos]))
> @@ -733,20 +741,24 @@ transposewords(UNUSED(char **args))
> break;
> p1 = pos;
> }
> - pp = temp = (ZLE_STRING_T)zhalloc((p4 - p1)*ZLE_CHAR_SIZE);
> - len = p4 - p3;
> - ZS_memcpy(pp, zleline + p3, len);
> - pp += len;
> - len = p3 - p2;
> - ZS_memcpy(pp, zleline + p2, len);
> - pp += len;
> - ZS_memcpy(pp, zleline + p1, p2 - p1);
> + pt = p1;
> + }
>
> - ZS_memcpy(zleline + p1, temp, p4 - p1);
> + pp = temp = (ZLE_STRING_T)zhalloc((p4 - p1)*ZLE_CHAR_SIZE);
> + len = p4 - p3;
> + ZS_memcpy(pp, zleline + p3, len);
> + pp += len;
> + len = p3 - p2;
> + ZS_memcpy(pp, zleline + p2, len);
> + pp += len;
> + ZS_memcpy(pp, zleline + p1, p2 - p1);
> +
> + ZS_memcpy(zleline + p1, temp, p4 - p1);
>
> - zlecs = p4;
> - }
> if (neg)
> zlecs = ocs;
> + else
> + zlecs = p4;
> +
> return 0;
> }
> --
> 2.5.5
Any suggestions to this one, please? Thanks in advance.
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