diff options
Diffstat (limited to 'editors/vi.c')
| -rw-r--r-- | editors/vi.c | 79 |
1 files changed, 36 insertions, 43 deletions
diff --git a/editors/vi.c b/editors/vi.c index 24a9f60..70bdbab 100644 --- a/editors/vi.c +++ b/editors/vi.c @@ -566,8 +566,7 @@ static void redraw(int); // force a full screen refresh static char* format_line(char* /*, int*/); static void refresh(int); // update the terminal from screen[] -static void Indicate_Error(void); // use flash or beep to indicate error -#define indicate_error(c) Indicate_Error() +static void indicate_error(void); // use flash or beep to indicate error static void Hit_Return(void); #if ENABLE_FEATURE_VI_SEARCH @@ -1840,11 +1839,11 @@ static char *bound_dot(char *p) // make sure text[0] <= P < "end" { if (p >= end && end > text) { p = end - 1; - indicate_error('1'); + indicate_error(); } if (p < text) { p = text; - indicate_error('2'); + indicate_error(); } return p; } @@ -2023,16 +2022,9 @@ static char *char_insert(char *p, char c, int undo) // insert the char c at 'p' p = text_hole_delete(p, p, ALLOW_UNDO_QUEUED); // shrink buffer 1 char } } else { -#if ENABLE_FEATURE_VI_SETOPTS // insert a char into text[] - char *sp; // "save p" -#endif - if (c == 13) c = '\n'; // translate \r to \n -#if ENABLE_FEATURE_VI_SETOPTS - sp = p; // remember addr of insert -#endif #if ENABLE_FEATURE_VI_UNDO # if ENABLE_FEATURE_VI_UNDO_QUEUE if (c == '\n') @@ -2056,8 +2048,8 @@ static char *char_insert(char *p, char c, int undo) // insert the char c at 'p' #endif /* ENABLE_FEATURE_VI_UNDO */ p += 1 + stupid_insert(p, c); // insert the char #if ENABLE_FEATURE_VI_SETOPTS - if (showmatch && strchr(")]}", *sp) != NULL) { - showmatching(sp); + if (showmatch && strchr(")]}", c) != NULL) { + showmatching(p - 1); } if (autoindent && c == '\n') { // auto indent the new line char *q; @@ -2217,34 +2209,32 @@ static char *skip_thing(char *p, int linecnt, int dir, int type) } // find matching char of pair () [] {} +// will crash if c is not one of these static char *find_pair(char *p, const char c) { - char match, *q; + const char *braces = "()[]{}"; + char match; int dir, level; - match = ')'; + dir = strchr(braces, c) - braces; + dir ^= 1; + match = braces[dir]; + dir = ((dir & 1) << 1) - 1; /* 1 for ([{, -1 for )\} */ + + // look for match, count levels of pairs (( )) level = 1; - dir = 1; // assume forward - switch (c) { - case '(': match = ')'; break; - case '[': match = ']'; break; - case '{': match = '}'; break; - case ')': match = '('; dir = -1; break; - case ']': match = '['; dir = -1; break; - case '}': match = '{'; dir = -1; break; - } - for (q = p + dir; text <= q && q < end; q += dir) { - // look for match, count levels of pairs (( )) - if (*q == c) + for (;;) { + p += dir; + if (p < text || p >= end) + return NULL; + if (*p == c) level++; // increase pair levels - if (*q == match) + if (*p == match) { level--; // reduce pair level - if (level == 0) - break; // found matching pair + if (level == 0) + return p; // found matching pair + } } - if (level != 0) - q = NULL; // indicate no match - return q; } #if ENABLE_FEATURE_VI_SETOPTS @@ -2256,7 +2246,7 @@ static void showmatching(char *p) // we found half of a pair q = find_pair(p, *p); // get loc of matching char if (q == NULL) { - indicate_error('3'); // no matching char + indicate_error(); // no matching char } else { // "q" now points to matching pair save_dot = dot; // remember where we are @@ -2815,6 +2805,9 @@ static int mysleep(int hund) // sleep for 'hund' 1/100 seconds or stdin ready { struct pollfd pfd[1]; + if (hund != 0) + fflush_all(); + pfd[0].fd = STDIN_FILENO; pfd[0].events = POLLIN; return safe_poll(pfd, 1, hund*10) > 0; @@ -3059,7 +3052,7 @@ static void flash(int h) redraw(TRUE); } -static void Indicate_Error(void) +static void indicate_error(void) { #if ENABLE_FEATURE_VI_CRASHME if (crashme > 0) @@ -3602,7 +3595,7 @@ static void do_cmd(int c) break; case 27: // esc if (cmd_mode == 0) - indicate_error(c); + indicate_error(); cmd_mode = 0; // stop insrting undo_queue_commit(); end_cmd_q(); @@ -3621,7 +3614,7 @@ static void do_cmd(int c) if ((unsigned)c1 <= 25) { // a-z? YDreg = c1; } else { - indicate_error(c); + indicate_error(); } break; case '\'': // '- goto a specific mark @@ -3639,7 +3632,7 @@ static void do_cmd(int c) dot_begin(); // go to B-o-l dot_skip_over_ws(); } else { - indicate_error(c); + indicate_error(); } break; case 'm': // m- Mark a line @@ -3652,7 +3645,7 @@ static void do_cmd(int c) // remember the line mark[c1] = dot; } else { - indicate_error(c); + indicate_error(); } break; case 'P': // P- Put register before @@ -3713,7 +3706,7 @@ static void do_cmd(int c) // we found half of a pair p = find_pair(q, *q); if (p == NULL) { - indicate_error(c); + indicate_error(); } else { dot = p; } @@ -3721,7 +3714,7 @@ static void do_cmd(int c) } } if (*q == '\n') - indicate_error(c); + indicate_error(); break; case 'f': // f- forward to a user specified char last_forward_char = get_one_char(); // get the search char @@ -4054,7 +4047,7 @@ static void do_cmd(int c) // ZZ means to save file (if necessary), then exit c1 = get_one_char(); if (c1 != 'Z') { - indicate_error(c); + indicate_error(); break; } if (modified_count) { @@ -4138,7 +4131,7 @@ static void do_cmd(int c) // could not recognize object c = c1 = 27; // error- ml = 0; - indicate_error(c); + indicate_error(); } if (ml && whole) { if (c == 'c') { |