diff options
| -rw-r--r-- | catgirl.1 | 2 | ||||
| -rw-r--r-- | chat.h | 1 | ||||
| -rw-r--r-- | edit.c | 26 | ||||
| -rw-r--r-- | ui.c | 7 |
4 files changed, 30 insertions, 6 deletions
@@ -226,6 +226,8 @@ Delete to end of line. Delete to beginning of line. .It Ic C-w Delete previous word. +.It Ic C-y +Paste previously deleted text. .It Ic M-b Move to previous word. .It Ic M-d @@ -157,6 +157,7 @@ enum Edit { EditDeleteNext, EditDeletePrevWord, EditDeleteNextWord, + EditPaste, EditInsert, EditComplete, EditEnter, @@ -16,6 +16,7 @@ #include <assert.h> #include <limits.h> +#include <stdbool.h> #include <stdio.h> #include <stdlib.h> #include <wchar.h> @@ -46,14 +47,24 @@ char *editBuffer(size_t *mbsPos) { return mbs; } -static void reserve(size_t index, size_t count) { - if (len + count > Cap) return; +static struct { + wchar_t buf[Cap]; + size_t len; +} cut; + +static bool reserve(size_t index, size_t count) { + if (len + count > Cap) return false; memmove(&buf[index + count], &buf[index], sizeof(*buf) * (len - index)); len += count; + return true; } static void delete(size_t index, size_t count) { if (index + count > len) return; + if (count > 1) { + memcpy(cut.buf, &buf[index], sizeof(*buf) * count); + cut.len = count; + } memmove( &buf[index], &buf[index + count], sizeof(*buf) * (len - index - count) ); @@ -163,10 +174,17 @@ void edit(size_t id, enum Edit op, wchar_t ch) { while (word < len && buf[word] != L' ') word++; delete(pos, word - pos); } + break; case EditPaste: { + if (reserve(pos, cut.len)) { + memcpy(&buf[pos], cut.buf, sizeof(*buf) * cut.len); + pos += cut.len; + } + } break; case EditInsert: { - reserve(pos, 1); - if (pos < Cap) buf[pos++] = ch; + if (reserve(pos, 1)) { + buf[pos++] = ch; + } } break; case EditComplete: { tabComplete(id); @@ -166,12 +166,14 @@ void uiHide(void) { endwin(); } -static void disableFlowControl(void) { +// Gain use of C-q, C-s, C-z, C-y, C-o. +static void acquireKeys(void) { struct termios term; int error = tcgetattr(STDOUT_FILENO, &term); if (error) err(EX_OSERR, "tcgetattr"); term.c_iflag &= ~IXON; term.c_cc[VSUSP] = _POSIX_VDISABLE; + term.c_cc[VDSUSP] = _POSIX_VDISABLE; term.c_cc[VDISCARD] = _POSIX_VDISABLE; error = tcsetattr(STDOUT_FILENO, TCSADRAIN, &term); if (error) err(EX_OSERR, "tcsetattr"); @@ -212,7 +214,7 @@ void uiInit(void) { initscr(); cbreak(); noecho(); - disableFlowControl(); + acquireKeys(); def_prog_mode(); atexit(errExit); colorInit(); @@ -662,6 +664,7 @@ static void keyCtrl(wchar_t ch) { break; case L'L': clearok(curscr, true); break; case L'U': edit(id, EditDeleteHead, 0); break; case L'W': edit(id, EditDeletePrevWord, 0); + break; case L'Y': edit(id, EditPaste, 0); } } |