diff options
Diffstat (limited to 'contrib/less/command.c')
| -rw-r--r-- | contrib/less/command.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/contrib/less/command.c b/contrib/less/command.c index 3ec1f9b48358..390385547385 100644 --- a/contrib/less/command.c +++ b/contrib/less/command.c @@ -49,10 +49,13 @@ extern void *ml_examine; extern int wheel_lines; extern int def_search_type; extern lbool search_wrapped; +extern lbool no_poll; extern int no_paste; extern lbool pasting; extern int no_edit_warn; extern POSITION soft_eof; +extern POSITION search_incr_start; +extern char *first_cmd_at_prompt; #if SHELL_ESCAPE || PIPEC extern void *ml_shell; #endif @@ -90,6 +93,8 @@ static int save_proc_backspace; static int screen_trashed_value = 0; static lbool literal_char = FALSE; static lbool ignoring_input = FALSE; +static struct scrpos search_incr_pos = { NULL_POSITION, 0 }; +static int search_incr_hshift; #if HAVE_TIME static time_type ignoring_input_time; #endif @@ -209,6 +214,13 @@ static void mca_search1(void) static void mca_search(void) { + if (incr_search) + { + /* Remember where the incremental search started. */ + get_scrpos(&search_incr_pos, TOP); + search_incr_start = search_pos(search_type); + search_incr_hshift = hshift; + } mca_search1(); set_mlist(ml_search, 0); } @@ -747,6 +759,9 @@ static int mca_char(char c) constant char *pattern = get_cmdbuf(); if (pattern == NULL) return (MCA_MORE); + /* Defer searching if more chars of the pattern are available. */ + if (ttyin_ready()) + return (MCA_MORE); /* * Must save updown_match because mca_search * reinits it. That breaks history scrolling. @@ -758,11 +773,24 @@ static int mca_char(char c) { /* User has backspaced to an empty pattern. */ undo_search(1); + hshift = search_incr_hshift; + jump_loc(search_incr_pos.pos, search_incr_pos.ln); } else { + /* + * Suppress tty polling while searching. + * This avoids a problem where tty input + * can cause the search to be interrupted. + */ + no_poll = TRUE; if (search(st | SRCH_INCR, pattern, 1) != 0) + { /* No match, invalid pattern, etc. */ undo_search(1); + hshift = search_incr_hshift; + jump_loc(search_incr_pos.pos, search_incr_pos.ln); + } + no_poll = FALSE; } /* Redraw the search prompt and search string. */ if (is_screen_trashed() || !full_screen) @@ -795,6 +823,7 @@ static void clear_buffers(void) #if HILITE_SEARCH clr_hilite(); #endif + set_line_contig_pos(NULL_POSITION); } public void screen_trashed_num(int trashed) @@ -889,6 +918,12 @@ static void prompt(void) next_ifile(curr_ifile) == NULL_IFILE) quit(QUIT_OK); quit_if_one_screen = FALSE; /* only get one chance at this */ + if (first_cmd_at_prompt != NULL) + { + ungetsc(first_cmd_at_prompt); + first_cmd_at_prompt = NULL; + return; + } #if MSDOS_COMPILER==WIN32C /* @@ -962,6 +997,7 @@ static void prompt(void) put_line(FALSE); } clear_eol(); + resume_screen(); } /* @@ -2261,6 +2297,7 @@ public void commands(void) pos_rehead(); hshift -= (int) number; screen_trashed(); + cmd_exec(); break; case A_RSHIFT: @@ -2274,6 +2311,7 @@ public void commands(void) pos_rehead(); hshift += (int) number; screen_trashed(); + cmd_exec(); break; case A_LLSHIFT: @@ -2283,6 +2321,7 @@ public void commands(void) pos_rehead(); hshift = 0; screen_trashed(); + cmd_exec(); break; case A_RRSHIFT: @@ -2292,6 +2331,7 @@ public void commands(void) pos_rehead(); hshift = rrshift(); screen_trashed(); + cmd_exec(); break; case A_PREFIX: |