mirror of
https://github.com/luau-lang/luau.git
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141 lines
5.3 KiB
C
141 lines
5.3 KiB
C
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/* ----------------------------------------------------------------------------
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Copyright (c) 2021, Daan Leijen
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This is free software; you can redistribute it and/or modify it
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under the terms of the MIT License. A copy of the license can be
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found in the "LICENSE" file at the root of this distribution.
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-----------------------------------------------------------------------------*/
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//-------------------------------------------------------------
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// Help: this is included into editline.c
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//-------------------------------------------------------------
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static const char* help[] = {
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"","Navigation:",
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"left,"
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"^b", "go one character to the left",
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"right,"
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"^f", "go one character to the right",
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"up", "go one row up, or back in the history",
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"down", "go one row down, or forward in the history",
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#ifdef __APPLE__
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"shift-left",
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#else
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"^left",
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#endif
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"go to the start of the previous word",
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#ifdef __APPLE__
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"shift-right",
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#else
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"^right",
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#endif
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"go to the end the current word",
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"home,"
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"^a", "go to the start of the current line",
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"end,"
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"^e", "go to the end of the current line",
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"pgup,"
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"^home", "go to the start of the current input",
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"pgdn,"
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"^end", "go to the end of the current input",
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"alt-m", "jump to matching brace",
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"^p", "go back in the history",
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"^n", "go forward in the history",
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"^r,^s", "search the history starting with the current word",
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"","",
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"", "Deletion:",
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"del,^d", "delete the current character",
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"backsp,^h", "delete the previous character",
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"^w", "delete to preceding white space",
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"alt-backsp", "delete to the start of the current word",
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"alt-d", "delete to the end of the current word",
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"^u", "delete to the start of the current line",
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"^k", "delete to the end of the current line",
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"esc", "delete the current input, or done with empty input",
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"","",
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"", "Editing:",
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"enter", "accept current input",
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#ifndef __APPLE__
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"^enter, ^j", "",
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"shift-tab",
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#else
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"shift-tab,^j",
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#endif
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"create a new line for multi-line input",
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//" ", "(or type '\\' followed by enter)",
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"^l", "clear screen",
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"^t", "swap with previous character (move character backward)",
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"^z,^_", "undo",
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"^y", "redo",
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//"^C", "done with empty input",
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//"F1", "show this help",
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"tab", "try to complete the current input",
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"","",
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"","In the completion menu:",
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"enter,left", "use the currently selected completion",
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"1 - 9", "use completion N from the menu",
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"tab,down", "select the next completion",
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"shift-tab,up","select the previous completion",
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"esc", "exit menu without completing",
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"pgdn,^j", "show all further possible completions",
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"","",
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"","In incremental history search:",
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"enter", "use the currently found history entry",
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"backsp,"
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"^z", "go back to the previous match (undo)",
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"tab,"
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"^r", "find the next match",
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"shift-tab,"
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"^s", "find an earlier match",
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"esc", "exit search",
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" ","",
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NULL, NULL
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};
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static const char* help_initial =
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"[ic-info]"
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"Isocline v1.0, copyright (c) 2021 Daan Leijen.\n"
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"This is free software; you can redistribute it and/or\n"
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"modify it under the terms of the MIT License.\n"
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"See <[url]https://github.com/daanx/isocline[/url]> for further information.\n"
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"We use ^<key> as a shorthand for ctrl-<key>.\n"
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"\n"
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"Overview:\n"
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"\n[ansi-lightgray]"
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" home,ctrl-a cursor end,ctrl-e\n"
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" ┌────────────────┼───────────────┐ (navigate)\n"
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//" │ │ │\n"
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#ifndef __APPLE__
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" │ ctrl-left │ ctrl-right │\n"
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#else
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" │ alt-left │ alt-right │\n"
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#endif
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" │ ┌───────┼──────┐ │ ctrl-r : search history\n"
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" ▼ ▼ ▼ ▼ ▼ tab : complete word\n"
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" prompt> [ansi-darkgray]it's the quintessential language[/] shift-tab: insert new line\n"
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" ▲ ▲ ▲ ▲ esc : delete input, done\n"
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" │ └──────────────┘ │ ctrl-z : undo\n"
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" │ alt-backsp alt-d │\n"
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//" │ │ │\n"
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" └────────────────────────────────┘ (delete)\n"
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" ctrl-u ctrl-k\n"
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"[/ansi-lightgray][/ic-info]\n";
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static void edit_show_help(ic_env_t* env, editor_t* eb) {
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edit_clear(env, eb);
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bbcode_println(env->bbcode, help_initial);
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for (ssize_t i = 0; help[i] != NULL && help[i+1] != NULL; i += 2) {
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if (help[i][0] == 0) {
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bbcode_printf(env->bbcode, "[ic-info]%s[/]\n", help[i+1]);
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}
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else {
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bbcode_printf(env->bbcode, " [ic-emphasis]%-13s[/][ansi-lightgray]%s%s[/]\n", help[i], (help[i+1][0] == 0 ? "" : ": "), help[i+1]);
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}
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}
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eb->cur_rows = 0;
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eb->cur_row = 0;
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edit_refresh(env, eb);
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}
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