mirror of
https://github.com/tmux/tmux.git
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Enhance paste-buffer to allow lines to be separated by any string, from
Andrea Barisani.
This commit is contained in:
Nicholas Marriott
@@ -18,7 +18,9 @@
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#include <sys/types.h>
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#include <stdlib.h>
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#include <string.h>
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#include <vis.h>
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#include "tmux.h"
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@@ -26,27 +28,109 @@
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* Paste paste buffer if present.
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*/
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struct cmd_paste_buffer_data {
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char *target;
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int buffer;
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int flag_delete;
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char *sepstr;
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};
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void cmd_paste_buffer_init(struct cmd *, int);
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int cmd_paste_buffer_parse(struct cmd *, int, char **, char **);
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int cmd_paste_buffer_exec(struct cmd *, struct cmd_ctx *);
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void cmd_paste_buffer_lf2cr(struct window_pane *, const char *, size_t);
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void cmd_paste_buffer_filter(
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struct window_pane *, const char *, size_t, char *);
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void cmd_paste_buffer_free(struct cmd *);
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size_t cmd_paste_buffer_print(struct cmd *, char *, size_t);
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const struct cmd_entry cmd_paste_buffer_entry = {
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"paste-buffer", "pasteb",
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"[-dr] " CMD_BUFFER_PANE_USAGE,
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0, "dr",
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cmd_buffer_init,
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cmd_buffer_parse,
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"[-dr] [-s separator] [-b buffer-index] [-t target-window]",
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0, "",
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cmd_paste_buffer_init,
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cmd_paste_buffer_parse,
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cmd_paste_buffer_exec,
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cmd_buffer_free,
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cmd_buffer_print
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cmd_paste_buffer_free,
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cmd_paste_buffer_print
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};
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/* ARGSUSED */
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void
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cmd_paste_buffer_init(struct cmd *self, unused int arg)
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{
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struct cmd_paste_buffer_data *data;
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self->data = data = xmalloc(sizeof *data);
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data->target = NULL;
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data->buffer = -1;
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data->flag_delete = 0;
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data->sepstr = xstrdup("\r");
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}
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int
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cmd_paste_buffer_parse(struct cmd *self, int argc, char **argv, char **cause)
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{
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struct cmd_paste_buffer_data *data;
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int opt, n;
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const char *errstr;
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cmd_paste_buffer_init(self, 0);
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data = self->data;
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while ((opt = getopt(argc, argv, "b:ds:t:r")) != -1) {
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switch (opt) {
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case 'b':
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if (data->buffer == -1) {
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n = strtonum(optarg, 0, INT_MAX, &errstr);
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if (errstr != NULL) {
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xasprintf(cause, "buffer %s", errstr);
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goto error;
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}
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data->buffer = n;
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}
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break;
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case 'd':
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data->flag_delete = 1;
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break;
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case 's':
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if (data->sepstr != NULL)
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xfree(data->sepstr);
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data->sepstr = xstrdup(optarg);
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break;
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case 't':
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if (data->target == NULL)
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data->target = xstrdup(optarg);
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break;
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case 'r':
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if (data->sepstr != NULL)
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xfree(data->sepstr);
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data->sepstr = xstrdup("\n");
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break;
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default:
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goto usage;
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}
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}
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argc -= optind;
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argv += optind;
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return (0);
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usage:
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xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
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error:
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self->entry->free(self);
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return (-1);
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}
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int
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cmd_paste_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
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{
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struct cmd_buffer_data *data = self->data;
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struct window_pane *wp;
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struct session *s;
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struct paste_buffer *pb;
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struct cmd_paste_buffer_data *data = self->data;
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struct window_pane *wp;
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struct session *s;
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struct paste_buffer *pb;
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if (cmd_find_pane(ctx, data->target, &s, &wp) == NULL)
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return (-1);
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@@ -60,16 +144,11 @@ cmd_paste_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
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}
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}
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if (pb != NULL) {
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/* -r means raw data without LF->CR conversion. */
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if (cmd_check_flag(data->chflags, 'r'))
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bufferevent_write(wp->event, pb->data, pb->size);
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else
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cmd_paste_buffer_lf2cr(wp, pb->data, pb->size);
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}
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if (pb != NULL)
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cmd_paste_buffer_filter(wp, pb->data, pb->size, data->sepstr);
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/* Delete the buffer if -d. */
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if (cmd_check_flag(data->chflags, 'd')) {
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if (data->flag_delete) {
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if (data->buffer == -1)
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paste_free_top(&s->buffers);
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else
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@@ -79,20 +158,66 @@ cmd_paste_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
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return (0);
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}
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/* Add bytes to a buffer but change every '\n' to '\r'. */
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/* Add bytes to a buffer and filter '\n' according to separator. */
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void
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cmd_paste_buffer_lf2cr(struct window_pane *wp, const char *data, size_t size)
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cmd_paste_buffer_filter(
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struct window_pane *wp, const char *data, size_t size, char *sep)
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{
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const char *end = data + size;
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const char *lf;
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size_t seplen;
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seplen = strlen(sep);
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while ((lf = memchr(data, '\n', end - data)) != NULL) {
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if (lf != data)
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bufferevent_write(wp->event, data, lf - data);
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bufferevent_write(wp->event, "\r", 1);
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bufferevent_write(wp->event, sep, seplen);
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data = lf + 1;
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}
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if (end != data)
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bufferevent_write(wp->event, data, end - data);
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}
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void
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cmd_paste_buffer_free(struct cmd *self)
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{
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struct cmd_paste_buffer_data *data = self->data;
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if (data->target != NULL)
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xfree(data->target);
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if (data->sepstr != NULL)
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xfree(data->sepstr);
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xfree(data);
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}
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size_t
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cmd_paste_buffer_print(struct cmd *self, char *buf, size_t len)
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{
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struct cmd_paste_buffer_data *data = self->data;
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size_t off = 0;
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char tmp[BUFSIZ];
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int r_flag;
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r_flag = 0;
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if (data->sepstr != NULL)
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r_flag = (data->sepstr[0] == '\n' && data->sepstr[1] == '\0');
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off += xsnprintf(buf, len, "%s", self->entry->name);
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if (data == NULL)
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return (off);
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if (off < len && data->flag_delete)
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off += xsnprintf(buf + off, len - off, " -d");
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if (off < len && r_flag)
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off += xsnprintf(buf + off, len - off, " -r");
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if (off < len && data->buffer != -1)
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off += xsnprintf(buf + off, len - off, " -b %d", data->buffer);
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if (off < len && data->sepstr != NULL && !r_flag) {
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strnvis(
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tmp, data->sepstr, sizeof tmp, VIS_OCTAL|VIS_TAB|VIS_NL);
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off += cmd_prarg(buf + off, len - off, " -s ", tmp);
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}
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if (off < len && data->target != NULL)
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off += cmd_prarg(buf + off, len - off, " -t ", data->target);
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return (off);
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}
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10
tmux.1
10
tmux.1
@@ -2387,6 +2387,7 @@ Load the contents of the specified paste buffer from
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.It Xo Ic paste-buffer
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.Op Fl dr
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.Op Fl b Ar buffer-index
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.Op Fl s Ar separator
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.Op Fl t Ar target-pane
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.Xc
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.D1 (alias: Ic pasteb )
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@@ -2396,10 +2397,13 @@ With
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.Fl d ,
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also delete the paste buffer from the stack.
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When output, any linefeed (LF) characters in the paste buffer are replaced with
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carriage returns (CR).
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This translation may be disabled with the
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.Fl r
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a separator, by default carriage return (CR).
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A custom separator may be specified using the
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.Fl s
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flag.
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The
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.Fl r
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flag means to do no replacement (equivalent to a separator of LF).
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.It Xo Ic save-buffer
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.Op Fl a
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.Op Fl b Ar buffer-index
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