// 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 #include #include #include #include "nvim/vim.h" #include "nvim/ascii.h" #include "nvim/keymap.h" #include "nvim/charset.h" #include "nvim/memory.h" #include "nvim/edit.h" #include "nvim/eval.h" #include "nvim/message.h" #include "nvim/strings.h" #include "nvim/mouse.h" #ifdef INCLUDE_GENERATED_DECLARATIONS # include "keymap.c.generated.h" #endif /* * Some useful tables. */ static struct modmasktable { short mod_mask; /* Bit-mask for particular key modifier */ short mod_flag; /* Bit(s) for particular key modifier */ char_u name; /* Single letter name of modifier */ } mod_mask_table[] = { {MOD_MASK_ALT, MOD_MASK_ALT, (char_u)'M'}, {MOD_MASK_META, MOD_MASK_META, (char_u)'T'}, {MOD_MASK_CTRL, MOD_MASK_CTRL, (char_u)'C'}, {MOD_MASK_SHIFT, MOD_MASK_SHIFT, (char_u)'S'}, {MOD_MASK_MULTI_CLICK, MOD_MASK_2CLICK, (char_u)'2'}, {MOD_MASK_MULTI_CLICK, MOD_MASK_3CLICK, (char_u)'3'}, {MOD_MASK_MULTI_CLICK, MOD_MASK_4CLICK, (char_u)'4'}, {MOD_MASK_CMD, MOD_MASK_CMD, (char_u)'D'}, // 'A' must be the last one {MOD_MASK_ALT, MOD_MASK_ALT, (char_u)'A'}, {0, 0, NUL} }; /* * Shifted key terminal codes and their unshifted equivalent. * Don't add mouse codes here, they are handled separately! */ #define MOD_KEYS_ENTRY_SIZE 5 static char_u modifier_keys_table[] = { /* mod mask with modifier without modifier */ MOD_MASK_SHIFT, '&', '9', '@', '1', /* begin */ MOD_MASK_SHIFT, '&', '0', '@', '2', /* cancel */ MOD_MASK_SHIFT, '*', '1', '@', '4', /* command */ MOD_MASK_SHIFT, '*', '2', '@', '5', /* copy */ MOD_MASK_SHIFT, '*', '3', '@', '6', /* create */ MOD_MASK_SHIFT, '*', '4', 'k', 'D', /* delete char */ MOD_MASK_SHIFT, '*', '5', 'k', 'L', /* delete line */ MOD_MASK_SHIFT, '*', '7', '@', '7', /* end */ MOD_MASK_CTRL, KS_EXTRA, (int)KE_C_END, '@', '7', /* end */ MOD_MASK_SHIFT, '*', '9', '@', '9', /* exit */ MOD_MASK_SHIFT, '*', '0', '@', '0', /* find */ MOD_MASK_SHIFT, '#', '1', '%', '1', /* help */ MOD_MASK_SHIFT, '#', '2', 'k', 'h', /* home */ MOD_MASK_CTRL, KS_EXTRA, (int)KE_C_HOME, 'k', 'h', /* home */ MOD_MASK_SHIFT, '#', '3', 'k', 'I', /* insert */ MOD_MASK_SHIFT, '#', '4', 'k', 'l', /* left arrow */ MOD_MASK_CTRL, KS_EXTRA, (int)KE_C_LEFT, 'k', 'l', /* left arrow */ MOD_MASK_SHIFT, '%', 'a', '%', '3', /* message */ MOD_MASK_SHIFT, '%', 'b', '%', '4', /* move */ MOD_MASK_SHIFT, '%', 'c', '%', '5', /* next */ MOD_MASK_SHIFT, '%', 'd', '%', '7', /* options */ MOD_MASK_SHIFT, '%', 'e', '%', '8', /* previous */ MOD_MASK_SHIFT, '%', 'f', '%', '9', /* print */ MOD_MASK_SHIFT, '%', 'g', '%', '0', /* redo */ MOD_MASK_SHIFT, '%', 'h', '&', '3', /* replace */ MOD_MASK_SHIFT, '%', 'i', 'k', 'r', /* right arr. */ MOD_MASK_CTRL, KS_EXTRA, (int)KE_C_RIGHT, 'k', 'r', /* right arr. */ MOD_MASK_SHIFT, '%', 'j', '&', '5', /* resume */ MOD_MASK_SHIFT, '!', '1', '&', '6', /* save */ MOD_MASK_SHIFT, '!', '2', '&', '7', /* suspend */ MOD_MASK_SHIFT, '!', '3', '&', '8', /* undo */ MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_UP, 'k', 'u', /* up arrow */ MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_DOWN, 'k', 'd', /* down arrow */ /* vt100 F1 */ MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_XF1, KS_EXTRA, (int)KE_XF1, MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_XF2, KS_EXTRA, (int)KE_XF2, MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_XF3, KS_EXTRA, (int)KE_XF3, MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_XF4, KS_EXTRA, (int)KE_XF4, MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F1, 'k', '1', /* F1 */ MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F2, 'k', '2', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F3, 'k', '3', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F4, 'k', '4', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F5, 'k', '5', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F6, 'k', '6', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F7, 'k', '7', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F8, 'k', '8', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F9, 'k', '9', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F10, 'k', ';', /* F10 */ MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F11, 'F', '1', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F12, 'F', '2', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F13, 'F', '3', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F14, 'F', '4', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F15, 'F', '5', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F16, 'F', '6', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F17, 'F', '7', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F18, 'F', '8', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F19, 'F', '9', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F20, 'F', 'A', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F21, 'F', 'B', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F22, 'F', 'C', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F23, 'F', 'D', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F24, 'F', 'E', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F25, 'F', 'F', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F26, 'F', 'G', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F27, 'F', 'H', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F28, 'F', 'I', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F29, 'F', 'J', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F30, 'F', 'K', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F31, 'F', 'L', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F32, 'F', 'M', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F33, 'F', 'N', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F34, 'F', 'O', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F35, 'F', 'P', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F36, 'F', 'Q', MOD_MASK_SHIFT, KS_EXTRA, (int)KE_S_F37, 'F', 'R', /* TAB pseudo code*/ MOD_MASK_SHIFT, 'k', 'B', KS_EXTRA, (int)KE_TAB, NUL }; static struct key_name_entry { int key; // Special key code or ascii value char *name; // Name of key } key_names_table[] = { { ' ', "Space" }, { TAB, "Tab" }, { K_TAB, "Tab" }, { NL, "NL" }, { NL, "NewLine" }, // Alternative name { NL, "LineFeed" }, // Alternative name { NL, "LF" }, // Alternative name { CAR, "CR" }, { CAR, "Return" }, // Alternative name { CAR, "Enter" }, // Alternative name { K_BS, "BS" }, { K_BS, "BackSpace" }, // Alternative name { ESC, "Esc" }, { CSI, "CSI" }, { K_CSI, "xCSI" }, { '|', "Bar" }, { '\\', "Bslash" }, { K_DEL, "Del" }, { K_DEL, "Delete" }, // Alternative name { K_KDEL, "kDel" }, { K_UP, "Up" }, { K_DOWN, "Down" }, { K_LEFT, "Left" }, { K_RIGHT, "Right" }, { K_XUP, "xUp" }, { K_XDOWN, "xDown" }, { K_XLEFT, "xLeft" }, { K_XRIGHT, "xRight" }, { K_F1, "F1" }, { K_F2, "F2" }, { K_F3, "F3" }, { K_F4, "F4" }, { K_F5, "F5" }, { K_F6, "F6" }, { K_F7, "F7" }, { K_F8, "F8" }, { K_F9, "F9" }, { K_F10, "F10" }, { K_F11, "F11" }, { K_F12, "F12" }, { K_F13, "F13" }, { K_F14, "F14" }, { K_F15, "F15" }, { K_F16, "F16" }, { K_F17, "F17" }, { K_F18, "F18" }, { K_F19, "F19" }, { K_F20, "F20" }, { K_F21, "F21" }, { K_F22, "F22" }, { K_F23, "F23" }, { K_F24, "F24" }, { K_F25, "F25" }, { K_F26, "F26" }, { K_F27, "F27" }, { K_F28, "F28" }, { K_F29, "F29" }, { K_F30, "F30" }, { K_F31, "F31" }, { K_F32, "F32" }, { K_F33, "F33" }, { K_F34, "F34" }, { K_F35, "F35" }, { K_F36, "F36" }, { K_F37, "F37" }, { K_XF1, "xF1" }, { K_XF2, "xF2" }, { K_XF3, "xF3" }, { K_XF4, "xF4" }, { K_HELP, "Help" }, { K_UNDO, "Undo" }, { K_INS, "Insert" }, { K_INS, "Ins" }, // Alternative name { K_KINS, "kInsert" }, { K_HOME, "Home" }, { K_KHOME, "kHome" }, { K_XHOME, "xHome" }, { K_ZHOME, "zHome" }, { K_END, "End" }, { K_KEND, "kEnd" }, { K_XEND, "xEnd" }, { K_ZEND, "zEnd" }, { K_PAGEUP, "PageUp" }, { K_PAGEDOWN, "PageDown" }, { K_KPAGEUP, "kPageUp" }, { K_KPAGEDOWN, "kPageDown" }, { K_KPLUS, "kPlus" }, { K_KMINUS, "kMinus" }, { K_KDIVIDE, "kDivide" }, { K_KMULTIPLY, "kMultiply" }, { K_KENTER, "kEnter" }, { K_KPOINT, "kPoint" }, { K_K0, "k0" }, { K_K1, "k1" }, { K_K2, "k2" }, { K_K3, "k3" }, { K_K4, "k4" }, { K_K5, "k5" }, { K_K6, "k6" }, { K_K7, "k7" }, { K_K8, "k8" }, { K_K9, "k9" }, { '<', "lt" }, { K_MOUSE, "Mouse" }, { K_LEFTMOUSE, "LeftMouse" }, { K_LEFTMOUSE_NM, "LeftMouseNM" }, { K_LEFTDRAG, "LeftDrag" }, { K_LEFTRELEASE, "LeftRelease" }, { K_LEFTRELEASE_NM, "LeftReleaseNM" }, { K_MIDDLEMOUSE, "MiddleMouse" }, { K_MIDDLEDRAG, "MiddleDrag" }, { K_MIDDLERELEASE, "MiddleRelease" }, { K_RIGHTMOUSE, "RightMouse" }, { K_RIGHTDRAG, "RightDrag" }, { K_RIGHTRELEASE, "RightRelease" }, { K_MOUSEDOWN, "ScrollWheelUp" }, { K_MOUSEUP, "ScrollWheelDown" }, { K_MOUSELEFT, "ScrollWheelRight" }, { K_MOUSERIGHT, "ScrollWheelLeft" }, { K_MOUSEDOWN, "MouseDown" }, // OBSOLETE: Use { K_MOUSEUP, "MouseUp" }, // ScrollWheelXXX instead { K_X1MOUSE, "X1Mouse" }, { K_X1DRAG, "X1Drag" }, { K_X1RELEASE, "X1Release" }, { K_X2MOUSE, "X2Mouse" }, { K_X2DRAG, "X2Drag" }, { K_X2RELEASE, "X2Release" }, { K_DROP, "Drop" }, { K_ZERO, "Nul" }, { K_SNR, "SNR" }, { K_PLUG, "Plug" }, { K_PASTE, "Paste" }, { 0, NULL } }; static struct mousetable { int pseudo_code; /* Code for pseudo mouse event */ int button; /* Which mouse button is it? */ int is_click; /* Is it a mouse button click event? */ int is_drag; /* Is it a mouse drag event? */ } mouse_table[] = { {(int)KE_LEFTMOUSE, MOUSE_LEFT, TRUE, FALSE}, {(int)KE_LEFTDRAG, MOUSE_LEFT, FALSE, TRUE}, {(int)KE_LEFTRELEASE, MOUSE_LEFT, FALSE, FALSE}, {(int)KE_MIDDLEMOUSE, MOUSE_MIDDLE, TRUE, FALSE}, {(int)KE_MIDDLEDRAG, MOUSE_MIDDLE, FALSE, TRUE}, {(int)KE_MIDDLERELEASE, MOUSE_MIDDLE, FALSE, FALSE}, {(int)KE_RIGHTMOUSE, MOUSE_RIGHT, TRUE, FALSE}, {(int)KE_RIGHTDRAG, MOUSE_RIGHT, FALSE, TRUE}, {(int)KE_RIGHTRELEASE, MOUSE_RIGHT, FALSE, FALSE}, {(int)KE_X1MOUSE, MOUSE_X1, TRUE, FALSE}, {(int)KE_X1DRAG, MOUSE_X1, FALSE, TRUE}, {(int)KE_X1RELEASE, MOUSE_X1, FALSE, FALSE}, {(int)KE_X2MOUSE, MOUSE_X2, TRUE, FALSE}, {(int)KE_X2DRAG, MOUSE_X2, FALSE, TRUE}, {(int)KE_X2RELEASE, MOUSE_X2, FALSE, FALSE}, /* DRAG without CLICK */ {(int)KE_IGNORE, MOUSE_RELEASE, FALSE, TRUE}, /* RELEASE without CLICK */ {(int)KE_IGNORE, MOUSE_RELEASE, FALSE, FALSE}, {0, 0, 0, 0}, }; /* * Return the modifier mask bit (MOD_MASK_*) which corresponds to the given * modifier name ('S' for Shift, 'C' for Ctrl etc). */ int name_to_mod_mask(int c) { int i; c = TOUPPER_ASC(c); for (i = 0; mod_mask_table[i].mod_mask != 0; i++) if (c == mod_mask_table[i].name) return mod_mask_table[i].mod_flag; return 0; } /* * Check if if there is a special key code for "key" that includes the * modifiers specified. */ int simplify_key(int key, int *modifiers) { int i; int key0; int key1; if (*modifiers & (MOD_MASK_SHIFT | MOD_MASK_CTRL | MOD_MASK_ALT)) { /* TAB is a special case */ if (key == TAB && (*modifiers & MOD_MASK_SHIFT)) { *modifiers &= ~MOD_MASK_SHIFT; return K_S_TAB; } key0 = KEY2TERMCAP0(key); key1 = KEY2TERMCAP1(key); for (i = 0; modifier_keys_table[i] != NUL; i += MOD_KEYS_ENTRY_SIZE) if (key0 == modifier_keys_table[i + 3] && key1 == modifier_keys_table[i + 4] && (*modifiers & modifier_keys_table[i])) { *modifiers &= ~modifier_keys_table[i]; return TERMCAP2KEY(modifier_keys_table[i + 1], modifier_keys_table[i + 2]); } } return key; } /* * Change to , to , etc. */ int handle_x_keys(int key) { switch (key) { case K_XUP: return K_UP; case K_XDOWN: return K_DOWN; case K_XLEFT: return K_LEFT; case K_XRIGHT: return K_RIGHT; case K_XHOME: return K_HOME; case K_ZHOME: return K_HOME; case K_XEND: return K_END; case K_ZEND: return K_END; case K_XF1: return K_F1; case K_XF2: return K_F2; case K_XF3: return K_F3; case K_XF4: return K_F4; case K_S_XF1: return K_S_F1; case K_S_XF2: return K_S_F2; case K_S_XF3: return K_S_F3; case K_S_XF4: return K_S_F4; } return key; } /* * Return a string which contains the name of the given key when the given * modifiers are down. */ char_u *get_special_key_name(int c, int modifiers) { static char_u string[MAX_KEY_NAME_LEN + 1]; int i, idx; int table_idx; char_u *s; string[0] = '<'; idx = 1; /* Key that stands for a normal character. */ if (IS_SPECIAL(c) && KEY2TERMCAP0(c) == KS_KEY) c = KEY2TERMCAP1(c); /* * Translate shifted special keys into unshifted keys and set modifier. * Same for CTRL and ALT modifiers. */ if (IS_SPECIAL(c)) { for (i = 0; modifier_keys_table[i] != 0; i += MOD_KEYS_ENTRY_SIZE) if ( KEY2TERMCAP0(c) == (int)modifier_keys_table[i + 1] && (int)KEY2TERMCAP1(c) == (int)modifier_keys_table[i + 2]) { modifiers |= modifier_keys_table[i]; c = TERMCAP2KEY(modifier_keys_table[i + 3], modifier_keys_table[i + 4]); break; } } /* try to find the key in the special key table */ table_idx = find_special_key_in_table(c); /* * When not a known special key, and not a printable character, try to * extract modifiers. */ if (c > 0 && (*mb_char2len)(c) == 1 ) { if (table_idx < 0 && (!vim_isprintc(c) || (c & 0x7f) == ' ') && (c & 0x80)) { c &= 0x7f; modifiers |= MOD_MASK_ALT; /* try again, to find the un-alted key in the special key table */ table_idx = find_special_key_in_table(c); } if (table_idx < 0 && !vim_isprintc(c) && c < ' ') { c += '@'; modifiers |= MOD_MASK_CTRL; } } /* translate the modifier into a string */ for (i = 0; mod_mask_table[i].name != 'A'; i++) if ((modifiers & mod_mask_table[i].mod_mask) == mod_mask_table[i].mod_flag) { string[idx++] = mod_mask_table[i].name; string[idx++] = (char_u)'-'; } if (table_idx < 0) { /* unknown special key, may output t_xx */ if (IS_SPECIAL(c)) { string[idx++] = 't'; string[idx++] = '_'; string[idx++] = (char_u)KEY2TERMCAP0(c); string[idx++] = KEY2TERMCAP1(c); } /* Not a special key, only modifiers, output directly */ else { if (has_mbyte && (*mb_char2len)(c) > 1) idx += (*mb_char2bytes)(c, string + idx); else if (vim_isprintc(c)) string[idx++] = (char_u)c; else { s = transchar(c); while (*s) string[idx++] = *s++; } } } else { /* use name of special key */ STRCPY(string + idx, key_names_table[table_idx].name); idx = (int)STRLEN(string); } string[idx++] = '>'; string[idx] = NUL; return string; } /// Try translating a <> name /// /// @param[in,out] srcp Source from which <> are translated. Is advanced to /// after the <> name if there is a match. /// @param[in] src_len Length of the srcp. /// @param[out] dst Location where translation result will be kept. Must have /// at least six bytes. /// @param[in] keycode Prefer key code, e.g. K_DEL in place of DEL. /// @param[in] in_string Inside a double quoted string /// /// @return Number of characters added to dst, zero for no match. unsigned int trans_special(const char_u **srcp, const size_t src_len, char_u *const dst, const bool keycode, const bool in_string) FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT { int modifiers = 0; int key; unsigned int dlen = 0; key = find_special_key(srcp, src_len, &modifiers, keycode, false, in_string); if (key == 0) { return 0; } /* Put the appropriate modifier in a string */ if (modifiers != 0) { dst[dlen++] = K_SPECIAL; dst[dlen++] = KS_MODIFIER; dst[dlen++] = (char_u)modifiers; } if (IS_SPECIAL(key)) { dst[dlen++] = K_SPECIAL; dst[dlen++] = (char_u)KEY2TERMCAP0(key); dst[dlen++] = KEY2TERMCAP1(key); } else if (has_mbyte && !keycode) { dlen += (unsigned int)(*mb_char2bytes)(key, dst + dlen); } else if (keycode) { char_u *after = add_char2buf(key, dst + dlen); assert(after >= dst && (uintmax_t)(after - dst) <= UINT_MAX); dlen = (unsigned int)(after - dst); } else { dst[dlen++] = (char_u)key; } return dlen; } /// Try translating a <> name /// /// @param[in,out] srcp Translated <> name. Is advanced to after the <> name. /// @param[in] src_len srcp length. /// @param[out] modp Location where information about modifiers is saved. /// @param[in] keycode Prefer key code, e.g. K_DEL in place of DEL. /// @param[in] keep_x_key Don’t translate xHome to Home key. /// @param[in] in_string In string, double quote is escaped /// /// @return Key and modifiers or 0 if there is no match. int find_special_key(const char_u **srcp, const size_t src_len, int *const modp, const bool keycode, const bool keep_x_key, const bool in_string) FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL { const char_u *last_dash; const char_u *end_of_name; const char_u *src; const char_u *bp; const char_u *const end = *srcp + src_len - 1; int modifiers; int bit; int key; uvarnumber_T n; int l; if (src_len == 0) { return 0; } src = *srcp; if (src[0] != '<') { return 0; } // Find end of modifier list last_dash = src; for (bp = src + 1; bp <= end && (*bp == '-' || vim_isIDc(*bp)); bp++) { if (*bp == '-') { last_dash = bp; if (bp + 1 <= end) { if (has_mbyte) { l = mb_ptr2len_len(bp + 1, (int) (end - bp) + 1); } else { l = 1; } // Anything accepted, like . // or are not special in strings as " is // the string delimiter. With a backslash it works: if (end - bp > l && !(in_string && bp[1] == '"') && bp[2] == '>') { bp += l; } else if (end - bp > 2 && in_string && bp[1] == '\\' && bp[2] == '"' && bp[3] == '>') { bp += 2; } } } if (end - bp > 3 && bp[0] == 't' && bp[1] == '_') { bp += 3; // skip t_xx, xx may be '-' or '>' } else if (end - bp > 4 && STRNICMP(bp, "char-", 5) == 0) { vim_str2nr(bp + 5, NULL, &l, STR2NR_ALL, NULL, NULL, 0); bp += l + 5; break; } } if (bp <= end && *bp == '>') { // found matching '>' end_of_name = bp + 1; /* Which modifiers are given? */ modifiers = 0x0; for (bp = src + 1; bp < last_dash; bp++) { if (*bp != '-') { bit = name_to_mod_mask(*bp); if (bit == 0x0) { break; // Illegal modifier name } modifiers |= bit; } } // Legal modifier name. if (bp >= last_dash) { if (STRNICMP(last_dash + 1, "char-", 5) == 0 && ascii_isdigit(last_dash[6])) { // or or vim_str2nr(last_dash + 6, NULL, NULL, STR2NR_ALL, NULL, &n, 0); key = (int)n; } else { int off = 1; // Modifier with single letter, or special key name. if (in_string && last_dash[1] == '\\' && last_dash[2] == '"') { off = 2; } l = mb_ptr2len(last_dash + 1); if (modifiers != 0 && last_dash[l + 1] == '>') { key = PTR2CHAR(last_dash + off); } else { key = get_special_key_code(last_dash + off); if (!keep_x_key) { key = handle_x_keys(key); } } } // get_special_key_code() may return NUL for invalid // special key name. if (key != NUL) { // Only use a modifier when there is no special key code that // includes the modifier. key = simplify_key(key, &modifiers); if (!keycode) { // don't want keycode, use single byte code if (key == K_BS) { key = BS; } else if (key == K_DEL || key == K_KDEL) { key = DEL; } } // Normal Key with modifier: // Try to make a single byte code (except for Alt/Meta modifiers). if (!IS_SPECIAL(key)) { key = extract_modifiers(key, &modifiers); } *modp = modifiers; *srcp = end_of_name; return key; } } } return 0; } /// Try to include modifiers (except alt/meta) in the key. /// Changes "Shift-a" to 'A', "Ctrl-@" to , etc. static int extract_modifiers(int key, int *modp) { int modifiers = *modp; if (!(modifiers & MOD_MASK_CMD)) { // Command-key is special if ((modifiers & MOD_MASK_SHIFT) && ASCII_ISALPHA(key)) { key = TOUPPER_ASC(key); modifiers &= ~MOD_MASK_SHIFT; } } if ((modifiers & MOD_MASK_CTRL) && ((key >= '?' && key <= '_') || ASCII_ISALPHA(key))) { key = Ctrl_chr(key); modifiers &= ~MOD_MASK_CTRL; if (key == 0) { // is key = K_ZERO; } } *modp = modifiers; return key; } /* * Try to find key "c" in the special key table. * Return the index when found, -1 when not found. */ int find_special_key_in_table(int c) { int i; for (i = 0; key_names_table[i].name != NULL; i++) if (c == key_names_table[i].key) break; if (key_names_table[i].name == NULL) i = -1; return i; } /* * Find the special key with the given name (the given string does not have to * end with NUL, the name is assumed to end before the first non-idchar). * If the name starts with "t_" the next two characters are interpreted as a * termcap name. * Return the key code, or 0 if not found. */ int get_special_key_code(const char_u *name) { char *table_name; int i, j; for (i = 0; key_names_table[i].name != NULL; i++) { table_name = key_names_table[i].name; for (j = 0; vim_isIDc(name[j]) && table_name[j] != NUL; j++) if (TOLOWER_ASC(table_name[j]) != TOLOWER_ASC(name[j])) break; if (!vim_isIDc(name[j]) && table_name[j] == NUL) return key_names_table[i].key; } return 0; } /* * Look up the given mouse code to return the relevant information in the other * arguments. Return which button is down or was released. */ int get_mouse_button(int code, bool *is_click, bool *is_drag) { int i; for (i = 0; mouse_table[i].pseudo_code; i++) if (code == mouse_table[i].pseudo_code) { *is_click = mouse_table[i].is_click; *is_drag = mouse_table[i].is_drag; return mouse_table[i].button; } return 0; /* Shouldn't get here */ } /// Replace any terminal code strings with the equivalent internal /// representation /// /// Used for the "from" and "to" part of a mapping, and the "to" part of /// a menu command. Any strings like "" are also replaced, unless /// `special` is false. K_SPECIAL by itself is replaced by K_SPECIAL /// KS_SPECIAL KE_FILLER. /// /// @param[in] from What characters to replace. /// @param[in] from_len Length of the "from" argument. /// @param[out] bufp Location where results were saved in case of success /// (allocated). Will be set to NULL in case of failure. /// @param[in] do_lt If true, also translate . /// @param[in] from_part If true, trailing is included, otherwise it is /// removed (to make ":map xx ^V" map xx to nothing). /// When cpo_flags contains #FLAG_CPO_BSLASH, a backslash /// can be used in place of . All other /// characters are removed. /// @param[in] special Replace keycodes, e.g. becomes a "\n" char. /// @param[in] cpo_flags Relevant flags derived from p_cpo, see /// #CPO_TO_CPO_FLAGS. /// /// @return Pointer to an allocated memory in case of success, "from" in case of /// failure. In case of success returned pointer is also saved to /// "bufp". char_u *replace_termcodes(const char_u *from, const size_t from_len, char_u **bufp, const bool from_part, const bool do_lt, const bool special, int cpo_flags) FUNC_ATTR_NONNULL_ALL { ssize_t i; size_t slen; char_u key; size_t dlen = 0; const char_u *src; const char_u *const end = from + from_len - 1; int do_backslash; // backslash is a special character char_u *result; // buffer for resulting string do_backslash = !(cpo_flags&FLAG_CPO_BSLASH); // Allocate space for the translation. Worst case a single character is // replaced by 6 bytes (shifted special key), plus a NUL at the end. result = xmalloc(from_len * 6 + 1); src = from; // Check for #n at start only: function key n if (from_part && from_len > 1 && src[0] == '#' && ascii_isdigit(src[1])) { // function key result[dlen++] = K_SPECIAL; result[dlen++] = 'k'; if (src[1] == '0') { result[dlen++] = ';'; // #0 is F10 is "k;" } else { result[dlen++] = src[1]; // #3 is F3 is "k3" } src += 2; } // Copy each byte from *from to result[dlen] while (src <= end) { // Check for special <> keycodes, like "" if (special && (do_lt || ((end - src) >= 3 && STRNCMP(src, "", 4) != 0))) { // Replace by K_SNR _. // (room: 5 * 6 = 30 bytes; needed: 3 + + 1 <= 14) if (end - src >= 4 && STRNICMP(src, "", 5) == 0) { if (current_SID <= 0) { EMSG(_(e_usingsid)); } else { src += 5; result[dlen++] = K_SPECIAL; result[dlen++] = (int)KS_EXTRA; result[dlen++] = (int)KE_SNR; sprintf((char *)result + dlen, "%" PRId64, (int64_t)current_SID); dlen += STRLEN(result + dlen); result[dlen++] = '_'; continue; } } slen = trans_special(&src, (size_t)(end - src) + 1, result + dlen, true, true); if (slen) { dlen += slen; continue; } } if (special) { char_u *p, *s, len; // Replace by the value of "mapleader". // Replace by the value of "maplocalleader". // If "mapleader" or "maplocalleader" isn't set use a backslash. if (end - src >= 7 && STRNICMP(src, "", 8) == 0) { len = 8; p = get_var_value("g:mapleader"); } else if (end - src >= 12 && STRNICMP(src, "", 13) == 0) { len = 13; p = get_var_value("g:maplocalleader"); } else { len = 0; p = NULL; } if (len != 0) { // Allow up to 8 * 6 characters for "mapleader". if (p == NULL || *p == NUL || STRLEN(p) > 8 * 6) { s = (char_u *)"\\"; } else { s = p; } while (*s != NUL) { result[dlen++] = *s++; } src += len; continue; } } // Remove CTRL-V and ignore the next character. // For "from" side the CTRL-V at the end is included, for the "to" // part it is removed. // If 'cpoptions' does not contain 'B', also accept a backslash. key = *src; if (key == Ctrl_V || (do_backslash && key == '\\')) { src++; // skip CTRL-V or backslash if (src > end) { if (from_part) { result[dlen++] = key; } break; } } // skip multibyte char correctly for (i = (*mb_ptr2len_len)(src, (int) (end - src) + 1); i > 0; i--) { // If the character is K_SPECIAL, replace it with K_SPECIAL // KS_SPECIAL KE_FILLER. // If compiled with the GUI replace CSI with K_CSI. if (*src == K_SPECIAL) { result[dlen++] = K_SPECIAL; result[dlen++] = KS_SPECIAL; result[dlen++] = KE_FILLER; } else { result[dlen++] = *src; } ++src; } } result[dlen] = NUL; *bufp = xrealloc(result, dlen + 1); return *bufp; }