diff options
Diffstat (limited to 'src/nvim/message.c')
| -rw-r--r-- | src/nvim/message.c | 160 |
1 files changed, 65 insertions, 95 deletions
diff --git a/src/nvim/message.c b/src/nvim/message.c index 87cfe06edc..d43c04b652 100644 --- a/src/nvim/message.c +++ b/src/nvim/message.c @@ -1,9 +1,7 @@ // This is an open source non-commercial project. Dear PVS-Studio, please check // it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com -/* - * message.c: functions for displaying messages on the command line - */ +// message.c: functions for displaying messages on the command line #include <assert.h> #include <inttypes.h> @@ -48,10 +46,8 @@ #include "nvim/ui_compositor.h" #include "nvim/vim.h" -/* - * To be able to scroll back at the "more" and "hit-enter" prompts we need to - * store the displayed text and remember where screen lines start. - */ +// To be able to scroll back at the "more" and "hit-enter" prompts we need to +// store the displayed text and remember where screen lines start. typedef struct msgchunk_S msgchunk_T; struct msgchunk_S { msgchunk_T *sb_next; @@ -82,41 +78,39 @@ static int verbose_did_open = false; bool keep_msg_more = false; // keep_msg was set by msgmore() -/* - * When writing messages to the screen, there are many different situations. - * A number of variables is used to remember the current state: - * msg_didany true when messages were written since the last time the - * user reacted to a prompt. - * Reset: After hitting a key for the hit-return prompt, - * hitting <CR> for the command line or input(). - * Set: When any message is written to the screen. - * msg_didout true when something was written to the current line. - * Reset: When advancing to the next line, when the current - * text can be overwritten. - * Set: When any message is written to the screen. - * msg_nowait No extra delay for the last drawn message. - * Used in normal_cmd() before the mode message is drawn. - * emsg_on_display There was an error message recently. Indicates that there - * should be a delay before redrawing. - * msg_scroll The next message should not overwrite the current one. - * msg_scrolled How many lines the screen has been scrolled (because of - * messages). Used in update_screen() to scroll the screen - * back. Incremented each time the screen scrolls a line. - * msg_scrolled_ign true when msg_scrolled is non-zero and msg_puts_attr() - * writes something without scrolling should not make - * need_wait_return to be set. This is a hack to make ":ts" - * work without an extra prompt. - * lines_left Number of lines available for messages before the - * more-prompt is to be given. -1 when not set. - * need_wait_return true when the hit-return prompt is needed. - * Reset: After giving the hit-return prompt, when the user - * has answered some other prompt. - * Set: When the ruler or typeahead display is overwritten, - * scrolling the screen for some message. - * keep_msg Message to be displayed after redrawing the screen, in - * main_loop(). - * This is an allocated string or NULL when not used. - */ +// When writing messages to the screen, there are many different situations. +// A number of variables is used to remember the current state: +// msg_didany true when messages were written since the last time the +// user reacted to a prompt. +// Reset: After hitting a key for the hit-return prompt, +// hitting <CR> for the command line or input(). +// Set: When any message is written to the screen. +// msg_didout true when something was written to the current line. +// Reset: When advancing to the next line, when the current +// text can be overwritten. +// Set: When any message is written to the screen. +// msg_nowait No extra delay for the last drawn message. +// Used in normal_cmd() before the mode message is drawn. +// emsg_on_display There was an error message recently. Indicates that there +// should be a delay before redrawing. +// msg_scroll The next message should not overwrite the current one. +// msg_scrolled How many lines the screen has been scrolled (because of +// messages). Used in update_screen() to scroll the screen +// back. Incremented each time the screen scrolls a line. +// msg_scrolled_ign true when msg_scrolled is non-zero and msg_puts_attr() +// writes something without scrolling should not make +// need_wait_return to be set. This is a hack to make ":ts" +// work without an extra prompt. +// lines_left Number of lines available for messages before the +// more-prompt is to be given. -1 when not set. +// need_wait_return true when the hit-return prompt is needed. +// Reset: After giving the hit-return prompt, when the user +// has answered some other prompt. +// Set: When the ruler or typeahead display is overwritten, +// scrolling the screen for some message. +// keep_msg Message to be displayed after redrawing the screen, in +// main_loop(). +// This is an allocated string or NULL when not used. // Extended msg state, currently used for external UIs with ext_messages static const char *msg_ext_kind = NULL; @@ -313,11 +307,9 @@ bool msg_attr_keep(const char *s, int attr, bool keep, bool multiline) set_vim_var_string(VV_STATUSMSG, s, -1); } - /* - * It is possible that displaying a messages causes a problem (e.g., - * when redrawing the window), which causes another message, etc.. To - * break this loop, limit the recursiveness to 3 levels. - */ + // It is possible that displaying a messages causes a problem (e.g., + // when redrawing the window), which causes another message, etc.. To + // break this loop, limit the recursiveness to 3 levels. if (entered >= 3) { return true; } @@ -483,10 +475,8 @@ void trunc_string(char *s, char *buf, int room_in, int buflen) } } -/* - * Note: Caller of smsg() and smsg_attr() must check the resulting string is - * shorter than IOSIZE!!! - */ +// Note: Caller of smsg() and smsg_attr() must check the resulting string is +// shorter than IOSIZE!!! int smsg(const char *s, ...) FUNC_ATTR_PRINTF(1, 2) @@ -522,10 +512,8 @@ int smsg_attr_keep(int attr, const char *s, ...) return msg_attr_keep((const char *)IObuff, attr, true, false); } -/* - * Remember the last sourcing name/lnum used in an error message, so that it - * isn't printed each time when it didn't change. - */ +// Remember the last sourcing name/lnum used in an error message, so that it +// isn't printed each time when it didn't change. static int last_sourcing_lnum = 0; static char *last_sourcing_name = NULL; @@ -681,10 +669,8 @@ static bool emsg_multiline(const char *s, bool multiline) // set "v:errmsg", also when using ":silent! cmd" set_vim_var_string(VV_ERRMSG, s, -1); - /* - * When using ":silent! cmd" ignore error messages. - * But do write it to the redirection file. - */ + // When using ":silent! cmd" ignore error messages. + // But do write it to the redirection file. if (emsg_silent != 0) { if (!emsg_noredir) { msg_start(); @@ -1156,12 +1142,10 @@ void wait_return(int redraw) return; } - /* - * When inside vgetc(), we can't wait for a typed character at all. - * With the global command (and some others) we only need one return at - * the end. Adjust cmdline_row to avoid the next message overwriting the - * last one. - */ + // When inside vgetc(), we can't wait for a typed character at all. + // With the global command (and some others) we only need one return at + // the end. Adjust cmdline_row to avoid the next message overwriting the + // last one. if (vgetc_busy > 0) { return; } @@ -1226,12 +1210,10 @@ void wait_return(int redraw) reg_recording = save_reg_recording; scriptout = save_scriptout; - /* - * Allow scrolling back in the messages. - * Also accept scroll-down commands when messages fill the screen, - * to avoid that typing one 'j' too many makes the messages - * disappear. - */ + // Allow scrolling back in the messages. + // Also accept scroll-down commands when messages fill the screen, + // to avoid that typing one 'j' too many makes the messages + // disappear. if (p_more) { if (c == 'b' || c == 'k' || c == 'u' || c == 'g' || c == K_UP || c == K_PAGEUP) { @@ -1268,9 +1250,7 @@ void wait_return(int redraw) || c == K_MOUSEDOWN || c == K_MOUSEUP || c == K_MOUSEMOVE); os_breakcheck(); - /* - * Avoid that the mouse-up event causes visual mode to start. - */ + // Avoid that the mouse-up event causes visual mode to start. if (c == K_LEFTMOUSE || c == K_MIDDLEMOUSE || c == K_RIGHTMOUSE || c == K_X1MOUSE || c == K_X2MOUSE) { (void)jump_to_mouse(MOUSE_SETPOS, NULL, 0); @@ -1575,10 +1555,8 @@ int msg_outtrans_len_attr(const char *msgstr, int len, int attr) msg_puts_attr(" ", attr); } - /* - * Go over the string. Special characters are translated and printed. - * Normal characters are printed several at a time. - */ + // Go over the string. Special characters are translated and printed. + // Normal characters are printed several at a time. while (--len >= 0 && !got_int) { // Don't include composing chars after the end. mb_l = utfc_ptr2len_len(str, len + 1); @@ -2250,10 +2228,8 @@ static void msg_puts_display(const char *str, int maxlen, int attr, int recurse) cmdline_row--; } - /* - * If screen is completely filled and 'more' is set then wait - * for a character. - */ + // If screen is completely filled and 'more' is set then wait + // for a character. if (lines_left > 0) { lines_left--; } @@ -2828,9 +2804,7 @@ static int do_more_prompt(int typed_char) msg_moremsg(false); } for (;;) { - /* - * Get a typed character directly from the user. - */ + // Get a typed character directly from the user. if (used_typed_char != NUL) { c = used_typed_char; // was typed at hit-enter prompt used_typed_char = NUL; @@ -3170,12 +3144,10 @@ void msg_clr_cmdline(void) /// @return true if wait_return() not called. int msg_end(void) { - /* - * If the string is larger than the window, - * or the ruler option is set and we run into it, - * we have to redraw the window. - * Do not do this if we are abandoning the file or editing the command line. - */ + // If the string is larger than the window, + // or the ruler option is set and we run into it, + // we have to redraw the window. + // Do not do this if we are abandoning the file or editing the command line. if (!exiting && need_wait_return && !(State & MODE_CMDLINE)) { wait_return(false); return false; @@ -3545,10 +3517,8 @@ int do_dialog(int type, char *title, char *message, char *buttons, int dfltbutto State = MODE_CONFIRM; setmouse(); - /* - * Since we wait for a keypress, don't make the - * user press RETURN as well afterwards. - */ + // Since we wait for a keypress, don't make the + // user press RETURN as well afterwards. no_wait_return++; hotkeys = msg_show_console_dialog(message, buttons, dfltbutton); |