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less: a few fixes for cases where we overflow status line
This commit is contained in:
Denis Vlasenko
parent
f65d1338dc
commit
f1282a8792
@ -148,7 +148,7 @@ static int tless_getch(void)
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return input;
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}
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static char* tless_gets(void)
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static char* tless_gets(int sz)
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{
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int c;
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int i = 0;
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@ -164,11 +164,12 @@ static char* tless_gets(void)
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}
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if (c < ' ')
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continue;
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if (i >= width - sz - 1)
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continue; /* len limit */
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putchar(c);
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result[i++] = c;
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result = xrealloc(result, i+1);
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result[i] = '\0';
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if (i >= width-1) return result;
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}
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}
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@ -189,6 +190,12 @@ static void print_hilite(const char *str)
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printf(HIGHLIGHT"%s"NORMAL, str);
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}
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static void print_statusline(const char *str)
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{
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clear_line();
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printf(HIGHLIGHT"%.*s"NORMAL, width-1, str);
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}
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static void data_readlines(void)
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{
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unsigned i, pos;
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@ -277,6 +284,7 @@ static void m_status_print(void)
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{
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int percentage;
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clear_line();
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printf(HIGHLIGHT"%s", filename);
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if (num_files > 1)
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printf(" (file %i of %i)", current_file, num_files);
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@ -293,22 +301,6 @@ static void m_status_print(void)
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printf("%i%% "NORMAL, percentage);
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}
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#if 0
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/* Print a status line if -m was specified */
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static void medium_status_print(void)
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{
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int percentage;
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percentage = calc_percent();
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if (!line_pos)
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printf(HIGHLIGHT"%s %i%% "NORMAL, filename, percentage);
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else if (line_pos >= num_flines - height + 2)
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print_hilite("(END)");
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else
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printf(HIGHLIGHT"%i%% "NORMAL, percentage);
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}
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#endif
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#endif
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/* Print the status line */
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@ -322,12 +314,10 @@ static void status_print(void)
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m_status_print();
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return;
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}
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//if (option_mask32 & FLAG_m) {
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// medium_status_print();
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// return;
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//}
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/* No flags set */
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#endif
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clear_line();
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if (line_pos && line_pos < num_flines - height + 2) {
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putchar(':');
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return;
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@ -458,7 +448,6 @@ static void buffer_print(void)
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print_found(buffer[i]);
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else
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print_ascii(buffer[i]);
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fputs(CLEAR_2_EOL, stdout); /* clears status line */
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status_print();
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}
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@ -557,10 +546,9 @@ static void reinitialise(void)
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static void examine_file(void)
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{
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clear_line();
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printf("Examine: ");
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print_statusline("Examine: ");
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free(filename);
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filename = tless_gets();
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filename = tless_gets(sizeof("Examine: ")-1);
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/* files start by = argv. why we assume that argv is infinitely long??
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files[num_files] = filename;
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current_file = num_files + 1;
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@ -583,8 +571,7 @@ static void change_file(int direction)
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filename = xstrdup(files[current_file - 1]);
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reinitialise();
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} else {
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clear_line();
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print_hilite(direction > 0 ? "No next file" : "No previous file");
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print_statusline(direction > 0 ? "No next file" : "No previous file");
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}
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}
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@ -613,8 +600,7 @@ static void colon_process(void)
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int keypress;
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/* Clear the current line and print a prompt */
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clear_line();
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printf(" :");
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print_statusline(" :");
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keypress = tless_getch();
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switch (keypress) {
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@ -626,7 +612,6 @@ static void colon_process(void)
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break;
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#if ENABLE_FEATURE_LESS_FLAGS
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case 'f':
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clear_line();
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m_status_print();
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break;
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#endif
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@ -681,7 +666,7 @@ static void regex_process(void)
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/* Get the uncompiled regular expression from the user */
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clear_line();
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putchar((option_mask32 & LESS_STATE_MATCH_BACKWARDS) ? '?' : '/');
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uncomp_regex = tless_gets();
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uncomp_regex = tless_gets(1);
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if (/*!uncomp_regex ||*/ !uncomp_regex[0]) {
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free(uncomp_regex);
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buffer_print();
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@ -692,8 +677,7 @@ static void regex_process(void)
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err = regcomp_or_errmsg(&pattern, uncomp_regex, 0);
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free(uncomp_regex);
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if (err) {
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clear_line();
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fputs(err, stdout);
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print_statusline(err);
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free(err);
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return;
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}
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@ -862,14 +846,13 @@ static void save_input_to_file(void)
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int i;
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FILE *fp;
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clear_line();
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printf("Log file: ");
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current_line = tless_gets();
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print_statusline("Log file: ");
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current_line = tless_gets(sizeof("Log file: ")-1);
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if (strlen(current_line) > 0) {
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fp = fopen(current_line, "w");
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free(current_line);
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if (!fp) {
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print_hilite("Error opening log file");
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print_statusline("Error opening log file");
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return;
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}
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for (i = 0; i < num_flines; i++)
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@ -879,7 +862,7 @@ static void save_input_to_file(void)
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return;
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}
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free(current_line);
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print_hilite("No log file");
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print_statusline("No log file");
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}
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#if ENABLE_FEATURE_LESS_MARKS
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@ -887,8 +870,7 @@ static void add_mark(void)
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{
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int letter;
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clear_line();
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printf("Mark: ");
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print_statusline("Mark: ");
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letter = tless_getch();
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if (isalpha(letter)) {
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@ -901,8 +883,7 @@ static void add_mark(void)
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mark_lines[num_marks][1] = line_pos;
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num_marks++;
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} else {
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clear_line();
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print_hilite("Invalid mark letter");
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print_statusline("Invalid mark letter");
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}
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}
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@ -911,8 +892,7 @@ static void goto_mark(void)
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int letter;
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int i;
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clear_line();
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printf("Go to mark: ");
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print_statusline("Go to mark: ");
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letter = tless_getch();
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clear_line();
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@ -923,9 +903,9 @@ static void goto_mark(void)
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break;
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}
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if (num_marks == 14 && letter != mark_lines[14][0])
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print_hilite("Mark not set");
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print_statusline("Mark not set");
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} else
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print_hilite("Invalid mark letter");
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print_statusline("Invalid mark letter");
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}
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#endif
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@ -953,10 +933,8 @@ static void match_right_bracket(char bracket)
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int bracket_line = -1;
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int i;
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clear_line();
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if (strchr(flines[line_pos], bracket) == NULL) {
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print_hilite("No bracket in top line");
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print_statusline("No bracket in top line");
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return;
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}
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for (i = line_pos + 1; i < num_flines; i++) {
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@ -966,7 +944,7 @@ static void match_right_bracket(char bracket)
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}
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}
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if (bracket_line == -1)
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print_hilite("No matching bracket found");
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print_statusline("No matching bracket found");
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buffer_line(bracket_line - height + 2);
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}
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@ -975,13 +953,8 @@ static void match_left_bracket(char bracket)
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int bracket_line = -1;
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int i;
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clear_line();
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if (strchr(flines[line_pos + height - 2], bracket) == NULL) {
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print_hilite("No bracket in bottom line");
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/* ?? */
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/*printf("%s", flines[line_pos + height]);*/
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/*sleep(4);*/
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print_statusline("No bracket in bottom line");
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return;
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}
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@ -992,7 +965,7 @@ static void match_left_bracket(char bracket)
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}
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}
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if (bracket_line == -1)
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print_hilite("No matching bracket found");
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print_statusline("No matching bracket found");
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buffer_line(bracket_line);
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}
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@ -1058,7 +1031,6 @@ static void keypress_process(int keypress)
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break;
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#if ENABLE_FEATURE_LESS_FLAGS
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case '=':
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clear_line();
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m_status_print();
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break;
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#endif
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