From c73d2e20aec3222c69269fc78f2828cbb366b185 Mon Sep 17 00:00:00 2001 From: Michael Peters Date: Thu, 13 Oct 2022 11:24:34 -0700 Subject: [PATCH] finding packages --- .gitignore | 2 + config.h | 474 ++++++ patches/todo/st-alpha-20220206-0.8.5.diff | 146 ++ patches/todo/st-appsync-20200618-b27a383.diff | 259 +++ patches/todo/st-font2-0.8.5.diff | 163 ++ ...t-glyph-wide-support-20220411-ef05519.diff | 206 +++ ...tures-alpha-scrollback-20210824-0.8.4.diff | 315 ++++ patches/todo/st-scrollback-0.8.5.diff | 350 ++++ ...back-mouse-altscreen-20220127-2c5edf2.diff | 78 + .../st-scrollback-mouse-increment-0.8.2.diff | 34 + patches/todo/st-scrollback-reflow-0.8.5.diff | 1478 +++++++++++++++++ patches/todo/st-undercurl-0.8.4-20210822.diff | 605 +++++++ 12 files changed, 4110 insertions(+) create mode 100644 .gitignore create mode 100644 config.h create mode 100644 patches/todo/st-alpha-20220206-0.8.5.diff create mode 100644 patches/todo/st-appsync-20200618-b27a383.diff create mode 100644 patches/todo/st-font2-0.8.5.diff create mode 100644 patches/todo/st-glyph-wide-support-20220411-ef05519.diff create mode 100644 patches/todo/st-ligatures-alpha-scrollback-20210824-0.8.4.diff create mode 100644 patches/todo/st-scrollback-0.8.5.diff create mode 100644 patches/todo/st-scrollback-mouse-altscreen-20220127-2c5edf2.diff create mode 100644 patches/todo/st-scrollback-mouse-increment-0.8.2.diff create mode 100644 patches/todo/st-scrollback-reflow-0.8.5.diff create mode 100644 patches/todo/st-undercurl-0.8.4-20210822.diff diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..c5cc104 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +*.o +st diff --git a/config.h b/config.h new file mode 100644 index 0000000..560fc37 --- /dev/null +++ b/config.h @@ -0,0 +1,474 @@ +/* See LICENSE file for copyright and license details. */ + +/* + * appearance + * + * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html + */ +static char *font = "Hack Nerd Font:pixelsize=14:antialias=true:autohint=true"; +static int borderpx = 2; + +/* + * What program is execed by st depends of these precedence rules: + * 1: program passed with -e + * 2: scroll and/or utmp + * 3: SHELL environment variable + * 4: value of shell in /etc/passwd + * 5: value of shell in config.h + */ +static char *shell = "/bin/sh"; +char *utmp = NULL; +/* scroll program: to enable use a string like "scroll" */ +char *scroll = NULL; +char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400"; + +/* identification sequence returned in DA and DECID */ +char *vtiden = "\033[?6c"; + +/* Kerning / character bounding-box multipliers */ +static float cwscale = 1.0; +static float chscale = 1.0; + +/* + * word delimiter string + * + * More advanced example: L" `'\"()[]{}" + */ +wchar_t *worddelimiters = L" "; + +/* selection timeouts (in milliseconds) */ +static unsigned int doubleclicktimeout = 300; +static unsigned int tripleclicktimeout = 600; + +/* alt screens */ +int allowaltscreen = 1; + +/* allow certain non-interactive (insecure) window operations such as: + setting the clipboard text */ +int allowwindowops = 0; + +/* + * draw latency range in ms - from new content/keypress/etc until drawing. + * within this range, st draws when content stops arriving (idle). mostly it's + * near minlatency, but it waits longer for slow updates to avoid partial draw. + * low minlatency will tear/flicker more, as it can "detect" idle too early. + */ +static double minlatency = 8; +static double maxlatency = 33; + +/* + * blinking timeout (set to 0 to disable blinking) for the terminal blinking + * attribute. + */ +static unsigned int blinktimeout = 800; + +/* + * thickness of underline and bar cursors + */ +static unsigned int cursorthickness = 2; + +/* + * bell volume. It must be a value between -100 and 100. Use 0 for disabling + * it + */ +static int bellvolume = 0; + +/* default TERM value */ +char *termname = "st-256color"; + +/* + * spaces per tab + * + * When you are changing this value, don't forget to adapt the »it« value in + * the st.info and appropriately install the st.info in the environment where + * you use this st version. + * + * it#$tabspaces, + * + * Secondly make sure your kernel is not expanding tabs. When running `stty + * -a` »tab0« should appear. You can tell the terminal to not expand tabs by + * running following command: + * + * stty tabs + */ +unsigned int tabspaces = 8; + +/* Terminal colors (16 first used in escape sequence) */ +static const char *colorname[] = { + /* 8 normal colors */ + "black", + "red3", + "green3", + "yellow3", + "blue2", + "magenta3", + "cyan3", + "gray90", + + /* 8 bright colors */ + "gray50", + "red", + "green", + "yellow", + "#5c5cff", + "magenta", + "cyan", + "white", + + [255] = 0, + + /* more colors can be added after 255 to use with DefaultXX */ + "#cccccc", + "#555555", + "gray90", /* default foreground colour */ + "black", /* default background colour */ +}; + + +/* + * Default colors (colorname index) + * foreground, background, cursor, reverse cursor + */ +unsigned int defaultfg = 258; +unsigned int defaultbg = 259; +unsigned int defaultcs = 256; +static unsigned int defaultrcs = 257; + +/* + * Default shape of cursor + * 2: Block ("█") + * 4: Underline ("_") + * 6: Bar ("|") + * 7: Snowman ("☃") + */ +static unsigned int cursorshape = 2; + +/* + * Default columns and rows numbers + */ + +static unsigned int cols = 80; +static unsigned int rows = 24; + +/* + * Default colour and shape of the mouse cursor + */ +static unsigned int mouseshape = XC_xterm; +static unsigned int mousefg = 7; +static unsigned int mousebg = 0; + +/* + * Color used to display font attributes when fontconfig selected a font which + * doesn't match the ones requested. + */ +static unsigned int defaultattr = 11; + +/* + * Force mouse select/shortcuts while mask is active (when MODE_MOUSE is set). + * Note that if you want to use ShiftMask with selmasks, set this to an other + * modifier, set to 0 to not use it. + */ +static uint forcemousemod = ShiftMask; + +/* + * Internal mouse shortcuts. + * Beware that overloading Button1 will disable the selection. + */ +static MouseShortcut mshortcuts[] = { + /* mask button function argument release */ + { XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 }, + { ShiftMask, Button4, ttysend, {.s = "\033[5;2~"} }, + { XK_ANY_MOD, Button4, ttysend, {.s = "\031"} }, + { ShiftMask, Button5, ttysend, {.s = "\033[6;2~"} }, + { XK_ANY_MOD, Button5, ttysend, {.s = "\005"} }, +}; + +/* Internal keyboard shortcuts. */ +#define MODKEY Mod1Mask +#define TERMMOD (ControlMask|ShiftMask) + +static Shortcut shortcuts[] = { + /* mask keysym function argument */ + { XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} }, + { ControlMask, XK_Print, toggleprinter, {.i = 0} }, + { ShiftMask, XK_Print, printscreen, {.i = 0} }, + { XK_ANY_MOD, XK_Print, printsel, {.i = 0} }, + { TERMMOD, XK_Prior, zoom, {.f = +1} }, + { TERMMOD, XK_Next, zoom, {.f = -1} }, + { TERMMOD, XK_Home, zoomreset, {.f = 0} }, + { TERMMOD, XK_C, clipcopy, {.i = 0} }, + { TERMMOD, XK_V, clippaste, {.i = 0} }, + { TERMMOD, XK_Y, selpaste, {.i = 0} }, + { ShiftMask, XK_Insert, selpaste, {.i = 0} }, + { TERMMOD, XK_Num_Lock, numlock, {.i = 0} }, +}; + +/* + * Special keys (change & recompile st.info accordingly) + * + * Mask value: + * * Use XK_ANY_MOD to match the key no matter modifiers state + * * Use XK_NO_MOD to match the key alone (no modifiers) + * appkey value: + * * 0: no value + * * > 0: keypad application mode enabled + * * = 2: term.numlock = 1 + * * < 0: keypad application mode disabled + * appcursor value: + * * 0: no value + * * > 0: cursor application mode enabled + * * < 0: cursor application mode disabled + * + * Be careful with the order of the definitions because st searches in + * this table sequentially, so any XK_ANY_MOD must be in the last + * position for a key. + */ + +/* + * If you want keys other than the X11 function keys (0xFD00 - 0xFFFF) + * to be mapped below, add them to this array. + */ +static KeySym mappedkeys[] = { -1 }; + +/* + * State bits to ignore when matching key or button events. By default, + * numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored. + */ +static uint ignoremod = Mod2Mask|XK_SWITCH_MOD; + +/* + * This is the huge key array which defines all compatibility to the Linux + * world. Please decide about changes wisely. + */ +static Key key[] = { + /* keysym mask string appkey appcursor */ + { XK_KP_Home, ShiftMask, "\033[2J", 0, -1}, + { XK_KP_Home, ShiftMask, "\033[1;2H", 0, +1}, + { XK_KP_Home, XK_ANY_MOD, "\033[H", 0, -1}, + { XK_KP_Home, XK_ANY_MOD, "\033[1~", 0, +1}, + { XK_KP_Up, XK_ANY_MOD, "\033Ox", +1, 0}, + { XK_KP_Up, XK_ANY_MOD, "\033[A", 0, -1}, + { XK_KP_Up, XK_ANY_MOD, "\033OA", 0, +1}, + { XK_KP_Down, XK_ANY_MOD, "\033Or", +1, 0}, + { XK_KP_Down, XK_ANY_MOD, "\033[B", 0, -1}, + { XK_KP_Down, XK_ANY_MOD, "\033OB", 0, +1}, + { XK_KP_Left, XK_ANY_MOD, "\033Ot", +1, 0}, + { XK_KP_Left, XK_ANY_MOD, "\033[D", 0, -1}, + { XK_KP_Left, XK_ANY_MOD, "\033OD", 0, +1}, + { XK_KP_Right, XK_ANY_MOD, "\033Ov", +1, 0}, + { XK_KP_Right, XK_ANY_MOD, "\033[C", 0, -1}, + { XK_KP_Right, XK_ANY_MOD, "\033OC", 0, +1}, + { XK_KP_Prior, ShiftMask, "\033[5;2~", 0, 0}, + { XK_KP_Prior, XK_ANY_MOD, "\033[5~", 0, 0}, + { XK_KP_Begin, XK_ANY_MOD, "\033[E", 0, 0}, + { XK_KP_End, ControlMask, "\033[J", -1, 0}, + { XK_KP_End, ControlMask, "\033[1;5F", +1, 0}, + { XK_KP_End, ShiftMask, "\033[K", -1, 0}, + { XK_KP_End, ShiftMask, "\033[1;2F", +1, 0}, + { XK_KP_End, XK_ANY_MOD, "\033[4~", 0, 0}, + { XK_KP_Next, ShiftMask, "\033[6;2~", 0, 0}, + { XK_KP_Next, XK_ANY_MOD, "\033[6~", 0, 0}, + { XK_KP_Insert, ShiftMask, "\033[2;2~", +1, 0}, + { XK_KP_Insert, ShiftMask, "\033[4l", -1, 0}, + { XK_KP_Insert, ControlMask, "\033[L", -1, 0}, + { XK_KP_Insert, ControlMask, "\033[2;5~", +1, 0}, + { XK_KP_Insert, XK_ANY_MOD, "\033[4h", -1, 0}, + { XK_KP_Insert, XK_ANY_MOD, "\033[2~", +1, 0}, + { XK_KP_Delete, ControlMask, "\033[M", -1, 0}, + { XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0}, + { XK_KP_Delete, ShiftMask, "\033[2K", -1, 0}, + { XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0}, + { XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0}, + { XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0}, + { XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0}, + { XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0}, + { XK_KP_Enter, XK_ANY_MOD, "\033OM", +2, 0}, + { XK_KP_Enter, XK_ANY_MOD, "\r", -1, 0}, + { XK_KP_Subtract, XK_ANY_MOD, "\033Om", +2, 0}, + { XK_KP_Decimal, XK_ANY_MOD, "\033On", +2, 0}, + { XK_KP_Divide, XK_ANY_MOD, "\033Oo", +2, 0}, + { XK_KP_0, XK_ANY_MOD, "\033Op", +2, 0}, + { XK_KP_1, XK_ANY_MOD, "\033Oq", +2, 0}, + { XK_KP_2, XK_ANY_MOD, "\033Or", +2, 0}, + { XK_KP_3, XK_ANY_MOD, "\033Os", +2, 0}, + { XK_KP_4, XK_ANY_MOD, "\033Ot", +2, 0}, + { XK_KP_5, XK_ANY_MOD, "\033Ou", +2, 0}, + { XK_KP_6, XK_ANY_MOD, "\033Ov", +2, 0}, + { XK_KP_7, XK_ANY_MOD, "\033Ow", +2, 0}, + { XK_KP_8, XK_ANY_MOD, "\033Ox", +2, 0}, + { XK_KP_9, XK_ANY_MOD, "\033Oy", +2, 0}, + { XK_Up, ShiftMask, "\033[1;2A", 0, 0}, + { XK_Up, Mod1Mask, "\033[1;3A", 0, 0}, + { XK_Up, ShiftMask|Mod1Mask,"\033[1;4A", 0, 0}, + { XK_Up, ControlMask, "\033[1;5A", 0, 0}, + { XK_Up, ShiftMask|ControlMask,"\033[1;6A", 0, 0}, + { XK_Up, ControlMask|Mod1Mask,"\033[1;7A", 0, 0}, + { XK_Up,ShiftMask|ControlMask|Mod1Mask,"\033[1;8A", 0, 0}, + { XK_Up, XK_ANY_MOD, "\033[A", 0, -1}, + { XK_Up, XK_ANY_MOD, "\033OA", 0, +1}, + { XK_Down, ShiftMask, "\033[1;2B", 0, 0}, + { XK_Down, Mod1Mask, "\033[1;3B", 0, 0}, + { XK_Down, ShiftMask|Mod1Mask,"\033[1;4B", 0, 0}, + { XK_Down, ControlMask, "\033[1;5B", 0, 0}, + { XK_Down, ShiftMask|ControlMask,"\033[1;6B", 0, 0}, + { XK_Down, ControlMask|Mod1Mask,"\033[1;7B", 0, 0}, + { XK_Down,ShiftMask|ControlMask|Mod1Mask,"\033[1;8B",0, 0}, + { XK_Down, XK_ANY_MOD, "\033[B", 0, -1}, + { XK_Down, XK_ANY_MOD, "\033OB", 0, +1}, + { XK_Left, ShiftMask, "\033[1;2D", 0, 0}, + { XK_Left, Mod1Mask, "\033[1;3D", 0, 0}, + { XK_Left, ShiftMask|Mod1Mask,"\033[1;4D", 0, 0}, + { XK_Left, ControlMask, "\033[1;5D", 0, 0}, + { XK_Left, ShiftMask|ControlMask,"\033[1;6D", 0, 0}, + { XK_Left, ControlMask|Mod1Mask,"\033[1;7D", 0, 0}, + { XK_Left,ShiftMask|ControlMask|Mod1Mask,"\033[1;8D",0, 0}, + { XK_Left, XK_ANY_MOD, "\033[D", 0, -1}, + { XK_Left, XK_ANY_MOD, "\033OD", 0, +1}, + { XK_Right, ShiftMask, "\033[1;2C", 0, 0}, + { XK_Right, Mod1Mask, "\033[1;3C", 0, 0}, + { XK_Right, ShiftMask|Mod1Mask,"\033[1;4C", 0, 0}, + { XK_Right, ControlMask, "\033[1;5C", 0, 0}, + { XK_Right, ShiftMask|ControlMask,"\033[1;6C", 0, 0}, + { XK_Right, ControlMask|Mod1Mask,"\033[1;7C", 0, 0}, + { XK_Right,ShiftMask|ControlMask|Mod1Mask,"\033[1;8C",0, 0}, + { XK_Right, XK_ANY_MOD, "\033[C", 0, -1}, + { XK_Right, XK_ANY_MOD, "\033OC", 0, +1}, + { XK_ISO_Left_Tab, ShiftMask, "\033[Z", 0, 0}, + { XK_Return, Mod1Mask, "\033\r", 0, 0}, + { XK_Return, XK_ANY_MOD, "\r", 0, 0}, + { XK_Insert, ShiftMask, "\033[4l", -1, 0}, + { XK_Insert, ShiftMask, "\033[2;2~", +1, 0}, + { XK_Insert, ControlMask, "\033[L", -1, 0}, + { XK_Insert, ControlMask, "\033[2;5~", +1, 0}, + { XK_Insert, XK_ANY_MOD, "\033[4h", -1, 0}, + { XK_Insert, XK_ANY_MOD, "\033[2~", +1, 0}, + { XK_Delete, ControlMask, "\033[M", -1, 0}, + { XK_Delete, ControlMask, "\033[3;5~", +1, 0}, + { XK_Delete, ShiftMask, "\033[2K", -1, 0}, + { XK_Delete, ShiftMask, "\033[3;2~", +1, 0}, + { XK_Delete, XK_ANY_MOD, "\033[P", -1, 0}, + { XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0}, + { XK_BackSpace, XK_NO_MOD, "\177", 0, 0}, + { XK_BackSpace, Mod1Mask, "\033\177", 0, 0}, + { XK_Home, ShiftMask, "\033[2J", 0, -1}, + { XK_Home, ShiftMask, "\033[1;2H", 0, +1}, + { XK_Home, XK_ANY_MOD, "\033[H", 0, -1}, + { XK_Home, XK_ANY_MOD, "\033[1~", 0, +1}, + { XK_End, ControlMask, "\033[J", -1, 0}, + { XK_End, ControlMask, "\033[1;5F", +1, 0}, + { XK_End, ShiftMask, "\033[K", -1, 0}, + { XK_End, ShiftMask, "\033[1;2F", +1, 0}, + { XK_End, XK_ANY_MOD, "\033[4~", 0, 0}, + { XK_Prior, ControlMask, "\033[5;5~", 0, 0}, + { XK_Prior, ShiftMask, "\033[5;2~", 0, 0}, + { XK_Prior, XK_ANY_MOD, "\033[5~", 0, 0}, + { XK_Next, ControlMask, "\033[6;5~", 0, 0}, + { XK_Next, ShiftMask, "\033[6;2~", 0, 0}, + { XK_Next, XK_ANY_MOD, "\033[6~", 0, 0}, + { XK_F1, XK_NO_MOD, "\033OP" , 0, 0}, + { XK_F1, /* F13 */ ShiftMask, "\033[1;2P", 0, 0}, + { XK_F1, /* F25 */ ControlMask, "\033[1;5P", 0, 0}, + { XK_F1, /* F37 */ Mod4Mask, "\033[1;6P", 0, 0}, + { XK_F1, /* F49 */ Mod1Mask, "\033[1;3P", 0, 0}, + { XK_F1, /* F61 */ Mod3Mask, "\033[1;4P", 0, 0}, + { XK_F2, XK_NO_MOD, "\033OQ" , 0, 0}, + { XK_F2, /* F14 */ ShiftMask, "\033[1;2Q", 0, 0}, + { XK_F2, /* F26 */ ControlMask, "\033[1;5Q", 0, 0}, + { XK_F2, /* F38 */ Mod4Mask, "\033[1;6Q", 0, 0}, + { XK_F2, /* F50 */ Mod1Mask, "\033[1;3Q", 0, 0}, + { XK_F2, /* F62 */ Mod3Mask, "\033[1;4Q", 0, 0}, + { XK_F3, XK_NO_MOD, "\033OR" , 0, 0}, + { XK_F3, /* F15 */ ShiftMask, "\033[1;2R", 0, 0}, + { XK_F3, /* F27 */ ControlMask, "\033[1;5R", 0, 0}, + { XK_F3, /* F39 */ Mod4Mask, "\033[1;6R", 0, 0}, + { XK_F3, /* F51 */ Mod1Mask, "\033[1;3R", 0, 0}, + { XK_F3, /* F63 */ Mod3Mask, "\033[1;4R", 0, 0}, + { XK_F4, XK_NO_MOD, "\033OS" , 0, 0}, + { XK_F4, /* F16 */ ShiftMask, "\033[1;2S", 0, 0}, + { XK_F4, /* F28 */ ControlMask, "\033[1;5S", 0, 0}, + { XK_F4, /* F40 */ Mod4Mask, "\033[1;6S", 0, 0}, + { XK_F4, /* F52 */ Mod1Mask, "\033[1;3S", 0, 0}, + { XK_F5, XK_NO_MOD, "\033[15~", 0, 0}, + { XK_F5, /* F17 */ ShiftMask, "\033[15;2~", 0, 0}, + { XK_F5, /* F29 */ ControlMask, "\033[15;5~", 0, 0}, + { XK_F5, /* F41 */ Mod4Mask, "\033[15;6~", 0, 0}, + { XK_F5, /* F53 */ Mod1Mask, "\033[15;3~", 0, 0}, + { XK_F6, XK_NO_MOD, "\033[17~", 0, 0}, + { XK_F6, /* F18 */ ShiftMask, "\033[17;2~", 0, 0}, + { XK_F6, /* F30 */ ControlMask, "\033[17;5~", 0, 0}, + { XK_F6, /* F42 */ Mod4Mask, "\033[17;6~", 0, 0}, + { XK_F6, /* F54 */ Mod1Mask, "\033[17;3~", 0, 0}, + { XK_F7, XK_NO_MOD, "\033[18~", 0, 0}, + { XK_F7, /* F19 */ ShiftMask, "\033[18;2~", 0, 0}, + { XK_F7, /* F31 */ ControlMask, "\033[18;5~", 0, 0}, + { XK_F7, /* F43 */ Mod4Mask, "\033[18;6~", 0, 0}, + { XK_F7, /* F55 */ Mod1Mask, "\033[18;3~", 0, 0}, + { XK_F8, XK_NO_MOD, "\033[19~", 0, 0}, + { XK_F8, /* F20 */ ShiftMask, "\033[19;2~", 0, 0}, + { XK_F8, /* F32 */ ControlMask, "\033[19;5~", 0, 0}, + { XK_F8, /* F44 */ Mod4Mask, "\033[19;6~", 0, 0}, + { XK_F8, /* F56 */ Mod1Mask, "\033[19;3~", 0, 0}, + { XK_F9, XK_NO_MOD, "\033[20~", 0, 0}, + { XK_F9, /* F21 */ ShiftMask, "\033[20;2~", 0, 0}, + { XK_F9, /* F33 */ ControlMask, "\033[20;5~", 0, 0}, + { XK_F9, /* F45 */ Mod4Mask, "\033[20;6~", 0, 0}, + { XK_F9, /* F57 */ Mod1Mask, "\033[20;3~", 0, 0}, + { XK_F10, XK_NO_MOD, "\033[21~", 0, 0}, + { XK_F10, /* F22 */ ShiftMask, "\033[21;2~", 0, 0}, + { XK_F10, /* F34 */ ControlMask, "\033[21;5~", 0, 0}, + { XK_F10, /* F46 */ Mod4Mask, "\033[21;6~", 0, 0}, + { XK_F10, /* F58 */ Mod1Mask, "\033[21;3~", 0, 0}, + { XK_F11, XK_NO_MOD, "\033[23~", 0, 0}, + { XK_F11, /* F23 */ ShiftMask, "\033[23;2~", 0, 0}, + { XK_F11, /* F35 */ ControlMask, "\033[23;5~", 0, 0}, + { XK_F11, /* F47 */ Mod4Mask, "\033[23;6~", 0, 0}, + { XK_F11, /* F59 */ Mod1Mask, "\033[23;3~", 0, 0}, + { XK_F12, XK_NO_MOD, "\033[24~", 0, 0}, + { XK_F12, /* F24 */ ShiftMask, "\033[24;2~", 0, 0}, + { XK_F12, /* F36 */ ControlMask, "\033[24;5~", 0, 0}, + { XK_F12, /* F48 */ Mod4Mask, "\033[24;6~", 0, 0}, + { XK_F12, /* F60 */ Mod1Mask, "\033[24;3~", 0, 0}, + { XK_F13, XK_NO_MOD, "\033[1;2P", 0, 0}, + { XK_F14, XK_NO_MOD, "\033[1;2Q", 0, 0}, + { XK_F15, XK_NO_MOD, "\033[1;2R", 0, 0}, + { XK_F16, XK_NO_MOD, "\033[1;2S", 0, 0}, + { XK_F17, XK_NO_MOD, "\033[15;2~", 0, 0}, + { XK_F18, XK_NO_MOD, "\033[17;2~", 0, 0}, + { XK_F19, XK_NO_MOD, "\033[18;2~", 0, 0}, + { XK_F20, XK_NO_MOD, "\033[19;2~", 0, 0}, + { XK_F21, XK_NO_MOD, "\033[20;2~", 0, 0}, + { XK_F22, XK_NO_MOD, "\033[21;2~", 0, 0}, + { XK_F23, XK_NO_MOD, "\033[23;2~", 0, 0}, + { XK_F24, XK_NO_MOD, "\033[24;2~", 0, 0}, + { XK_F25, XK_NO_MOD, "\033[1;5P", 0, 0}, + { XK_F26, XK_NO_MOD, "\033[1;5Q", 0, 0}, + { XK_F27, XK_NO_MOD, "\033[1;5R", 0, 0}, + { XK_F28, XK_NO_MOD, "\033[1;5S", 0, 0}, + { XK_F29, XK_NO_MOD, "\033[15;5~", 0, 0}, + { XK_F30, XK_NO_MOD, "\033[17;5~", 0, 0}, + { XK_F31, XK_NO_MOD, "\033[18;5~", 0, 0}, + { XK_F32, XK_NO_MOD, "\033[19;5~", 0, 0}, + { XK_F33, XK_NO_MOD, "\033[20;5~", 0, 0}, + { XK_F34, XK_NO_MOD, "\033[21;5~", 0, 0}, + { XK_F35, XK_NO_MOD, "\033[23;5~", 0, 0}, +}; + +/* + * Selection types' masks. + * Use the same masks as usual. + * Button1Mask is always unset, to make masks match between ButtonPress. + * ButtonRelease and MotionNotify. + * If no match is found, regular selection is used. + */ +static uint selmasks[] = { + [SEL_RECTANGULAR] = Mod1Mask, +}; + +/* + * Printable characters in ASCII, used to estimate the advance width + * of single wide characters. + */ +static char ascii_printable[] = + " !\"#$%&'()*+,-./0123456789:;<=>?" + "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_" + "`abcdefghijklmnopqrstuvwxyz{|}~"; diff --git a/patches/todo/st-alpha-20220206-0.8.5.diff b/patches/todo/st-alpha-20220206-0.8.5.diff new file mode 100644 index 0000000..ab029f6 --- /dev/null +++ b/patches/todo/st-alpha-20220206-0.8.5.diff @@ -0,0 +1,146 @@ +diff --git a/config.def.h b/config.def.h +index 91ab8ca..6af616e 100644 +--- a/config.def.h ++++ b/config.def.h +@@ -93,6 +93,9 @@ char *termname = "st-256color"; + */ + unsigned int tabspaces = 8; + ++/* bg opacity */ ++float alpha = 0.8; ++ + /* Terminal colors (16 first used in escape sequence) */ + static const char *colorname[] = { + /* 8 normal colors */ +diff --git a/config.mk b/config.mk +index 4c4c5d5..0114bad 100644 +--- a/config.mk ++++ b/config.mk +@@ -16,7 +16,7 @@ PKG_CONFIG = pkg-config + INCS = -I$(X11INC) \ + `$(PKG_CONFIG) --cflags fontconfig` \ + `$(PKG_CONFIG) --cflags freetype2` +-LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft \ ++LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft -lXrender\ + `$(PKG_CONFIG) --libs fontconfig` \ + `$(PKG_CONFIG) --libs freetype2` + +diff --git a/st.h b/st.h +index 519b9bd..8bb533d 100644 +--- a/st.h ++++ b/st.h +@@ -126,3 +126,4 @@ extern unsigned int tabspaces; + extern unsigned int defaultfg; + extern unsigned int defaultbg; + extern unsigned int defaultcs; ++extern float alpha; +diff --git a/x.c b/x.c +index 8a16faa..ddf4178 100644 +--- a/x.c ++++ b/x.c +@@ -105,6 +105,7 @@ typedef struct { + XSetWindowAttributes attrs; + int scr; + int isfixed; /* is fixed geometry? */ ++ int depth; /* bit depth */ + int l, t; /* left and top offset */ + int gm; /* geometry mask */ + } XWindow; +@@ -243,6 +244,7 @@ static char *usedfont = NULL; + static double usedfontsize = 0; + static double defaultfontsize = 0; + ++static char *opt_alpha = NULL; + static char *opt_class = NULL; + static char **opt_cmd = NULL; + static char *opt_embed = NULL; +@@ -736,7 +738,7 @@ xresize(int col, int row) + + XFreePixmap(xw.dpy, xw.buf); + xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, +- DefaultDepth(xw.dpy, xw.scr)); ++ xw.depth); + XftDrawChange(xw.draw, xw.buf); + xclear(0, 0, win.w, win.h); + +@@ -796,6 +798,13 @@ xloadcols(void) + else + die("could not allocate color %d\n", i); + } ++ ++ /* set alpha value of bg color */ ++ if (opt_alpha) ++ alpha = strtof(opt_alpha, NULL); ++ dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * alpha); ++ dc.col[defaultbg].pixel &= 0x00FFFFFF; ++ dc.col[defaultbg].pixel |= (unsigned char)(0xff * alpha) << 24; + loaded = 1; + } + +@@ -1118,11 +1127,23 @@ xinit(int cols, int rows) + Window parent; + pid_t thispid = getpid(); + XColor xmousefg, xmousebg; ++ XWindowAttributes attr; ++ XVisualInfo vis; + + if (!(xw.dpy = XOpenDisplay(NULL))) + die("can't open display\n"); + xw.scr = XDefaultScreen(xw.dpy); +- xw.vis = XDefaultVisual(xw.dpy, xw.scr); ++ ++ if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) { ++ parent = XRootWindow(xw.dpy, xw.scr); ++ xw.depth = 32; ++ } else { ++ XGetWindowAttributes(xw.dpy, parent, &attr); ++ xw.depth = attr.depth; ++ } ++ ++ XMatchVisualInfo(xw.dpy, xw.scr, xw.depth, TrueColor, &vis); ++ xw.vis = vis.visual; + + /* font */ + if (!FcInit()) +@@ -1132,7 +1153,7 @@ xinit(int cols, int rows) + xloadfonts(usedfont, 0); + + /* colors */ +- xw.cmap = XDefaultColormap(xw.dpy, xw.scr); ++ xw.cmap = XCreateColormap(xw.dpy, parent, xw.vis, None); + xloadcols(); + + /* adjust fixed window geometry */ +@@ -1152,19 +1173,15 @@ xinit(int cols, int rows) + | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask; + xw.attrs.colormap = xw.cmap; + +- if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) +- parent = XRootWindow(xw.dpy, xw.scr); + xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t, +- win.w, win.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput, ++ win.w, win.h, 0, xw.depth, InputOutput, + xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity + | CWEventMask | CWColormap, &xw.attrs); + + memset(&gcvalues, 0, sizeof(gcvalues)); + gcvalues.graphics_exposures = False; +- dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures, +- &gcvalues); +- xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, +- DefaultDepth(xw.dpy, xw.scr)); ++ xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, xw.depth); ++ dc.gc = XCreateGC(xw.dpy, xw.buf, GCGraphicsExposures, &gcvalues); + XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel); + XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h); + +@@ -2019,6 +2036,9 @@ main(int argc, char *argv[]) + case 'a': + allowaltscreen = 0; + break; ++ case 'A': ++ opt_alpha = EARGF(usage()); ++ break; + case 'c': + opt_class = EARGF(usage()); + break; diff --git a/patches/todo/st-appsync-20200618-b27a383.diff b/patches/todo/st-appsync-20200618-b27a383.diff new file mode 100644 index 0000000..4736325 --- /dev/null +++ b/patches/todo/st-appsync-20200618-b27a383.diff @@ -0,0 +1,259 @@ +From 8c9c920325fa10440a96736ba58ec647a0365e22 Mon Sep 17 00:00:00 2001 +From: "Avi Halachmi (:avih)" +Date: Sat, 18 Apr 2020 13:56:11 +0300 +Subject: [PATCH] application-sync: support Synchronized-Updates + +See https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec + +In a nutshell: allow an application to suspend drawing until it has +completed some output - so that the terminal will not flicker/tear by +rendering partial content. If the end-of-suspension sequence doesn't +arrive, the terminal bails out after a timeout (default: 200 ms). + +The feature is supported and pioneered by iTerm2. There are probably +very few other terminals or applications which support this feature +currently. + +One notable application which does support it is tmux (master as of +2020-04-18) - where cursor flicker is completely avoided when a pane +has new content. E.g. run in one pane: `while :; do cat x.c; done' +while the cursor is at another pane. + +The terminfo string `Sync' added to `st.info' is also a tmux extension +which tmux detects automatically when `st.info` is installed. + +Notes: + +- Draw-suspension begins on BSU sequence (Begin-Synchronized-Update), + and ends on ESU sequence (End-Synchronized-Update). + +- BSU, ESU are "\033P=1s\033\\", "\033P=2s\033\\" respectively (DCS). + +- SU doesn't support nesting - BSU begins or extends, ESU always ends. + +- ESU without BSU is ignored. + +- BSU after BSU extends (resets the timeout), so an application could + send BSU in a loop and keep drawing suspended - exactly like it can + not-draw anything in a loop. But as soon as it exits/aborted then + drawing is resumed according to the timeout even without ESU. + +- This implementation focuses on ESU and doesn't really care about BSU + in the sense that it tries hard to draw exactly once ESU arrives (if + it's not too soon after the last draw - according to minlatency), + and doesn't try to draw the content just up-to BSU. These two sides + complement eachother - not-drawing on BSU increases the chance that + ESU is not too soon after the last draw. This approach was chosen + because the application's main focus is that ESU indicates to the + terminal that the content is now ready - and that's when we try to + draw. +--- + config.def.h | 6 ++++++ + st.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++-- + st.info | 1 + + x.c | 22 +++++++++++++++++++--- + 4 files changed, 72 insertions(+), 5 deletions(-) + +diff --git a/config.def.h b/config.def.h +index 6f05dce..80d768e 100644 +--- a/config.def.h ++++ b/config.def.h +@@ -56,6 +56,12 @@ int allowwindowops = 0; + static double minlatency = 8; + static double maxlatency = 33; + ++/* ++ * Synchronized-Update timeout in ms ++ * https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec ++ */ ++static uint su_timeout = 200; ++ + /* + * blinking timeout (set to 0 to disable blinking) for the terminal blinking + * attribute. +diff --git a/st.c b/st.c +index 76b7e0d..0582e77 100644 +--- a/st.c ++++ b/st.c +@@ -231,6 +231,33 @@ static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8}; + static Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000}; + static Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF}; + ++#include ++static int su = 0; ++struct timespec sutv; ++ ++static void ++tsync_begin() ++{ ++ clock_gettime(CLOCK_MONOTONIC, &sutv); ++ su = 1; ++} ++ ++static void ++tsync_end() ++{ ++ su = 0; ++} ++ ++int ++tinsync(uint timeout) ++{ ++ struct timespec now; ++ if (su && !clock_gettime(CLOCK_MONOTONIC, &now) ++ && TIMEDIFF(now, sutv) >= timeout) ++ su = 0; ++ return su; ++} ++ + ssize_t + xwrite(int fd, const char *s, size_t len) + { +@@ -818,6 +845,9 @@ ttynew(char *line, char *cmd, char *out, char **args) + return cmdfd; + } + ++static int twrite_aborted = 0; ++int ttyread_pending() { return twrite_aborted; } ++ + size_t + ttyread(void) + { +@@ -826,7 +856,7 @@ ttyread(void) + int ret, written; + + /* append read bytes to unprocessed bytes */ +- ret = read(cmdfd, buf+buflen, LEN(buf)-buflen); ++ ret = twrite_aborted ? 1 : read(cmdfd, buf+buflen, LEN(buf)-buflen); + + switch (ret) { + case 0: +@@ -834,7 +864,7 @@ ttyread(void) + case -1: + die("couldn't read from shell: %s\n", strerror(errno)); + default: +- buflen += ret; ++ buflen += twrite_aborted ? 0 : ret; + written = twrite(buf, buflen, 0); + buflen -= written; + /* keep any incomplete UTF-8 byte sequence for the next call */ +@@ -994,6 +1024,7 @@ tsetdirtattr(int attr) + void + tfulldirt(void) + { ++ tsync_end(); + tsetdirt(0, term.row-1); + } + +@@ -1895,6 +1926,12 @@ strhandle(void) + xsettitle(strescseq.args[0]); + return; + case 'P': /* DCS -- Device Control String */ ++ /* https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec */ ++ if (strstr(strescseq.buf, "=1s") == strescseq.buf) ++ tsync_begin(); /* BSU */ ++ else if (strstr(strescseq.buf, "=2s") == strescseq.buf) ++ tsync_end(); /* ESU */ ++ return; + case '_': /* APC -- Application Program Command */ + case '^': /* PM -- Privacy Message */ + return; +@@ -2436,6 +2473,9 @@ twrite(const char *buf, int buflen, int show_ctrl) + Rune u; + int n; + ++ int su0 = su; ++ twrite_aborted = 0; ++ + for (n = 0; n < buflen; n += charsize) { + if (IS_SET(MODE_UTF8)) { + /* process a complete utf8 char */ +@@ -2446,6 +2486,10 @@ twrite(const char *buf, int buflen, int show_ctrl) + u = buf[n] & 0xFF; + charsize = 1; + } ++ if (su0 && !su) { ++ twrite_aborted = 1; ++ break; // ESU - allow rendering before a new BSU ++ } + if (show_ctrl && ISCONTROL(u)) { + if (u & 0x80) { + u &= 0x7f; +diff --git a/st.info b/st.info +index 8201ad6..b32b446 100644 +--- a/st.info ++++ b/st.info +@@ -191,6 +191,7 @@ st-mono| simpleterm monocolor, + Ms=\E]52;%p1%s;%p2%s\007, + Se=\E[2 q, + Ss=\E[%p1%d q, ++ Sync=\EP=%p1%ds\E\\, + + st| simpleterm, + use=st-mono, +diff --git a/x.c b/x.c +index 210f184..27ff4e2 100644 +--- a/x.c ++++ b/x.c +@@ -1861,6 +1861,9 @@ resize(XEvent *e) + cresize(e->xconfigure.width, e->xconfigure.height); + } + ++int tinsync(uint); ++int ttyread_pending(); ++ + void + run(void) + { +@@ -1895,7 +1898,7 @@ run(void) + FD_SET(ttyfd, &rfd); + FD_SET(xfd, &rfd); + +- if (XPending(xw.dpy)) ++ if (XPending(xw.dpy) || ttyread_pending()) + timeout = 0; /* existing events might not set xfd */ + + seltv.tv_sec = timeout / 1E3; +@@ -1909,7 +1912,8 @@ run(void) + } + clock_gettime(CLOCK_MONOTONIC, &now); + +- if (FD_ISSET(ttyfd, &rfd)) ++ int ttyin = FD_ISSET(ttyfd, &rfd) || ttyread_pending(); ++ if (ttyin) + ttyread(); + + xev = 0; +@@ -1933,7 +1937,7 @@ run(void) + * maximum latency intervals during `cat huge.txt`, and perfect + * sync with periodic updates from animations/key-repeats/etc. + */ +- if (FD_ISSET(ttyfd, &rfd) || xev) { ++ if (ttyin || xev) { + if (!drawing) { + trigger = now; + drawing = 1; +@@ -1944,6 +1948,18 @@ run(void) + continue; /* we have time, try to find idle */ + } + ++ if (tinsync(su_timeout)) { ++ /* ++ * on synchronized-update draw-suspension: don't reset ++ * drawing so that we draw ASAP once we can (just after ++ * ESU). it won't be too soon because we already can ++ * draw now but we skip. we set timeout > 0 to draw on ++ * SU-timeout even without new content. ++ */ ++ timeout = minlatency; ++ continue; ++ } ++ + /* idle detected or maxlatency exhausted -> draw */ + timeout = -1; + if (blinktimeout && tattrset(ATTR_BLINK)) { + +base-commit: b27a383a3acc7decf00e6e889fca265430b5d329 +-- +2.17.1 + diff --git a/patches/todo/st-font2-0.8.5.diff b/patches/todo/st-font2-0.8.5.diff new file mode 100644 index 0000000..9b22b8a --- /dev/null +++ b/patches/todo/st-font2-0.8.5.diff @@ -0,0 +1,163 @@ +From 1635e04d3643dd4caa0c7c2043b585c6d7e4705f Mon Sep 17 00:00:00 2001 +From: Rizqi Nur Assyaufi +Date: Mon, 18 Jul 2022 01:15:45 +0800 +Subject: [PATCH] [st][patch][font2] Add patch for st-0.8.5 + +--- + config.def.h | 6 +++ + x.c | 101 +++++++++++++++++++++++++++++++++++++++++++++++++++ + 2 files changed, 107 insertions(+) + +diff --git a/config.def.h b/config.def.h +index 91ab8ca..717b2f0 100644 +--- a/config.def.h ++++ b/config.def.h +@@ -6,6 +6,12 @@ + * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html + */ + static char *font = "Liberation Mono:pixelsize=12:antialias=true:autohint=true"; ++/* Spare fonts */ ++static char *font2[] = { ++/* "Inconsolata for Powerline:pixelsize=12:antialias=true:autohint=true", */ ++/* "Hack Nerd Font Mono:pixelsize=11:antialias=true:autohint=true", */ ++}; ++ + static int borderpx = 2; + + /* +diff --git a/x.c b/x.c +index 8a16faa..220fc4f 100644 +--- a/x.c ++++ b/x.c +@@ -157,6 +157,8 @@ static void xhints(void); + static int xloadcolor(int, const char *, Color *); + static int xloadfont(Font *, FcPattern *); + static void xloadfonts(const char *, double); ++static int xloadsparefont(FcPattern *, int); ++static void xloadsparefonts(void); + static void xunloadfont(Font *); + static void xunloadfonts(void); + static void xsetenv(void); +@@ -306,6 +308,7 @@ zoomabs(const Arg *arg) + { + xunloadfonts(); + xloadfonts(usedfont, arg->f); ++ xloadsparefonts(); + cresize(0, 0); + redraw(); + xhints(); +@@ -1034,6 +1037,101 @@ xloadfonts(const char *fontstr, double fontsize) + FcPatternDestroy(pattern); + } + ++int ++xloadsparefont(FcPattern *pattern, int flags) ++{ ++ FcPattern *match; ++ FcResult result; ++ ++ match = FcFontMatch(NULL, pattern, &result); ++ if (!match) { ++ return 1; ++ } ++ ++ if (!(frc[frclen].font = XftFontOpenPattern(xw.dpy, match))) { ++ FcPatternDestroy(match); ++ return 1; ++ } ++ ++ frc[frclen].flags = flags; ++ /* Believe U+0000 glyph will present in each default font */ ++ frc[frclen].unicodep = 0; ++ frclen++; ++ ++ return 0; ++} ++ ++void ++xloadsparefonts(void) ++{ ++ FcPattern *pattern; ++ double sizeshift, fontval; ++ int fc; ++ char **fp; ++ ++ if (frclen != 0) ++ die("can't embed spare fonts. cache isn't empty"); ++ ++ /* Calculate count of spare fonts */ ++ fc = sizeof(font2) / sizeof(*font2); ++ if (fc == 0) ++ return; ++ ++ /* Allocate memory for cache entries. */ ++ if (frccap < 4 * fc) { ++ frccap += 4 * fc - frccap; ++ frc = xrealloc(frc, frccap * sizeof(Fontcache)); ++ } ++ ++ for (fp = font2; fp - font2 < fc; ++fp) { ++ ++ if (**fp == '-') ++ pattern = XftXlfdParse(*fp, False, False); ++ else ++ pattern = FcNameParse((FcChar8 *)*fp); ++ ++ if (!pattern) ++ die("can't open spare font %s\n", *fp); ++ ++ if (defaultfontsize > 0) { ++ sizeshift = usedfontsize - defaultfontsize; ++ if (sizeshift != 0 && ++ FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) == ++ FcResultMatch) { ++ fontval += sizeshift; ++ FcPatternDel(pattern, FC_PIXEL_SIZE); ++ FcPatternDel(pattern, FC_SIZE); ++ FcPatternAddDouble(pattern, FC_PIXEL_SIZE, fontval); ++ } ++ } ++ ++ FcPatternAddBool(pattern, FC_SCALABLE, 1); ++ ++ FcConfigSubstitute(NULL, pattern, FcMatchPattern); ++ XftDefaultSubstitute(xw.dpy, xw.scr, pattern); ++ ++ if (xloadsparefont(pattern, FRC_NORMAL)) ++ die("can't open spare font %s\n", *fp); ++ ++ FcPatternDel(pattern, FC_SLANT); ++ FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC); ++ if (xloadsparefont(pattern, FRC_ITALIC)) ++ die("can't open spare font %s\n", *fp); ++ ++ FcPatternDel(pattern, FC_WEIGHT); ++ FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD); ++ if (xloadsparefont(pattern, FRC_ITALICBOLD)) ++ die("can't open spare font %s\n", *fp); ++ ++ FcPatternDel(pattern, FC_SLANT); ++ FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN); ++ if (xloadsparefont(pattern, FRC_BOLD)) ++ die("can't open spare font %s\n", *fp); ++ ++ FcPatternDestroy(pattern); ++ } ++} ++ + void + xunloadfont(Font *f) + { +@@ -1131,6 +1229,9 @@ xinit(int cols, int rows) + usedfont = (opt_font == NULL)? font : opt_font; + xloadfonts(usedfont, 0); + ++ /* spare fonts */ ++ xloadsparefonts(); ++ + /* colors */ + xw.cmap = XDefaultColormap(xw.dpy, xw.scr); + xloadcols(); +-- +2.37.1 + diff --git a/patches/todo/st-glyph-wide-support-20220411-ef05519.diff b/patches/todo/st-glyph-wide-support-20220411-ef05519.diff new file mode 100644 index 0000000..f88c5ee --- /dev/null +++ b/patches/todo/st-glyph-wide-support-20220411-ef05519.diff @@ -0,0 +1,206 @@ +From 68de38fadd04f2f454bceccea0fccc8276b635cb Mon Sep 17 00:00:00 2001 +From: wael <40663@protonmail.com> +Date: Mon, 11 Apr 2022 16:45:49 +0300 +Subject: [PATCH] add glyph wide support patch + +--- + st.h | 6 +++ + x.c | 134 +++++++++++++++++++++++++++++------------------------------ + 2 files changed, 73 insertions(+), 67 deletions(-) + +diff --git a/st.h b/st.h +index 519b9bd..4f74621 100644 +--- a/st.h ++++ b/st.h +@@ -36,6 +36,12 @@ enum glyph_attribute { + ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT, + }; + ++enum drawing_mode { ++ DRAW_NONE = 0, ++ DRAW_BG = 1 << 0, ++ DRAW_FG = 1 << 1, ++}; ++ + enum selection_mode { + SEL_IDLE = 0, + SEL_EMPTY = 1, +diff --git a/x.c b/x.c +index 2a3bd38..d60df52 100644 +--- a/x.c ++++ b/x.c +@@ -142,7 +142,7 @@ typedef struct { + + static inline ushort sixd_to_16bit(int); + static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int); +-static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int); ++static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int); + static void xdrawglyph(Glyph, int, int); + static void xclear(int, int, int, int); + static int xgeommasktogravity(int); +@@ -1372,7 +1372,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x + } + + void +-xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y) ++xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y, int dmode) + { + int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1); + int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, +@@ -1463,47 +1463,40 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i + if (base.mode & ATTR_INVISIBLE) + fg = bg; + +- /* Intelligent cleaning up of the borders. */ +- if (x == 0) { +- xclear(0, (y == 0)? 0 : winy, borderpx, +- winy + win.ch + +- ((winy + win.ch >= borderpx + win.th)? win.h : 0)); +- } +- if (winx + width >= borderpx + win.tw) { +- xclear(winx + width, (y == 0)? 0 : winy, win.w, +- ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch))); +- } +- if (y == 0) +- xclear(winx, 0, winx + width, borderpx); +- if (winy + win.ch >= borderpx + win.th) +- xclear(winx, winy + win.ch, winx + width, win.h); +- +- /* Clean up the region we want to draw to. */ +- XftDrawRect(xw.draw, bg, winx, winy, width, win.ch); +- +- /* Set the clip region because Xft is sometimes dirty. */ +- r.x = 0; +- r.y = 0; +- r.height = win.ch; +- r.width = width; +- XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1); +- +- /* Render the glyphs. */ +- XftDrawGlyphFontSpec(xw.draw, fg, specs, len); +- +- /* Render underline and strikethrough. */ +- if (base.mode & ATTR_UNDERLINE) { +- XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent * chscale + 1, +- width, 1); +- } +- +- if (base.mode & ATTR_STRUCK) { +- XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent * chscale / 3, +- width, 1); +- } +- +- /* Reset clip to none. */ +- XftDrawSetClip(xw.draw, 0); ++ if (dmode & DRAW_BG) { ++ /* Intelligent cleaning up of the borders. */ ++ if (x == 0) { ++ xclear(0, (y == 0)? 0 : winy, borderpx, ++ winy + win.ch + ++ ((winy + win.ch >= borderpx + win.th)? win.h : 0)); ++ } ++ if (winx + width >= borderpx + win.tw) { ++ xclear(winx + width, (y == 0)? 0 : winy, win.w, ++ ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch))); ++ } ++ if (y == 0) ++ xclear(winx, 0, winx + width, borderpx); ++ if (winy + win.ch >= borderpx + win.th) ++ xclear(winx, winy + win.ch, winx + width, win.h); ++ /* Fill the background */ ++ XftDrawRect(xw.draw, bg, winx, winy, width, win.ch); ++ } ++ ++ if (dmode & DRAW_FG) { ++ /* Render the glyphs. */ ++ XftDrawGlyphFontSpec(xw.draw, fg, specs, len); ++ ++ /* Render underline and strikethrough. */ ++ if (base.mode & ATTR_UNDERLINE) { ++ XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1, ++ width, 1); ++ } ++ ++ if (base.mode & ATTR_STRUCK) { ++ XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3, ++ width, 1); ++ } ++ } + } + + void +@@ -1513,7 +1506,7 @@ xdrawglyph(Glyph g, int x, int y) + XftGlyphFontSpec spec; + + numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y); +- xdrawglyphfontspecs(&spec, g, numspecs, x, y); ++ xdrawglyphfontspecs(&spec, g, numspecs, x, y, DRAW_BG | DRAW_FG); + } + + void +@@ -1648,32 +1641,39 @@ xstartdraw(void) + void + xdrawline(Line line, int x1, int y1, int x2) + { +- int i, x, ox, numspecs; ++ int i, x, ox, numspecs, numspecs_cached; + Glyph base, new; +- XftGlyphFontSpec *specs = xw.specbuf; +- +- numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1); +- i = ox = 0; +- for (x = x1; x < x2 && i < numspecs; x++) { +- new = line[x]; +- if (new.mode == ATTR_WDUMMY) +- continue; +- if (selected(x, y1)) +- new.mode ^= ATTR_REVERSE; +- if (i > 0 && ATTRCMP(base, new)) { +- xdrawglyphfontspecs(specs, base, i, ox, y1); +- specs += i; +- numspecs -= i; +- i = 0; +- } +- if (i == 0) { +- ox = x; +- base = new; ++ XftGlyphFontSpec *specs; ++ ++ numspecs_cached = xmakeglyphfontspecs(xw.specbuf, &line[x1], x2 - x1, x1, y1); ++ ++ /* Draw line in 2 passes: background and foreground. This way wide glyphs ++ won't get truncated (#223) */ ++ for (int dmode = DRAW_BG; dmode <= DRAW_FG; dmode <<= 1) { ++ specs = xw.specbuf; ++ numspecs = numspecs_cached; ++ i = ox = 0; ++ for (x = x1; x < x2 && i < numspecs; x++) { ++ new = line[x]; ++ if (new.mode == ATTR_WDUMMY) ++ continue; ++ if (selected(x, y1)) ++ new.mode ^= ATTR_REVERSE; ++ if (i > 0 && ATTRCMP(base, new)) { ++ xdrawglyphfontspecs(specs, base, i, ox, y1, dmode); ++ specs += i; ++ numspecs -= i; ++ i = 0; ++ } ++ if (i == 0) { ++ ox = x; ++ base = new; ++ } ++ i++; + } +- i++; ++ if (i > 0) ++ xdrawglyphfontspecs(specs, base, i, ox, y1, dmode); + } +- if (i > 0) +- xdrawglyphfontspecs(specs, base, i, ox, y1); + } + + void +-- +2.35.1 + diff --git a/patches/todo/st-ligatures-alpha-scrollback-20210824-0.8.4.diff b/patches/todo/st-ligatures-alpha-scrollback-20210824-0.8.4.diff new file mode 100644 index 0000000..34122ae --- /dev/null +++ b/patches/todo/st-ligatures-alpha-scrollback-20210824-0.8.4.diff @@ -0,0 +1,315 @@ +diff --git a/Makefile b/Makefile +index 470ac86..38240da 100644 +--- a/Makefile ++++ b/Makefile +@@ -4,7 +4,7 @@ + + include config.mk + +-SRC = st.c x.c ++SRC = st.c x.c hb.c + OBJ = $(SRC:.c=.o) + + all: options st +@@ -22,7 +22,8 @@ config.h: + $(CC) $(STCFLAGS) -c $< + + st.o: config.h st.h win.h +-x.o: arg.h config.h st.h win.h ++x.o: arg.h config.h st.h win.h hb.h ++hb.o: st.h + + $(OBJ): config.h config.mk + +diff --git a/config.mk b/config.mk +index aaa54ff..1741840 100644 +--- a/config.mk ++++ b/config.mk +@@ -15,10 +15,12 @@ PKG_CONFIG = pkg-config + # includes and libs + INCS = -I$(X11INC) \ + `$(PKG_CONFIG) --cflags fontconfig` \ +- `$(PKG_CONFIG) --cflags freetype2` ++ `$(PKG_CONFIG) --cflags freetype2` \ ++ `$(PKG_CONFIG) --cflags harfbuzz` + LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft -lXrender\ + `$(PKG_CONFIG) --libs fontconfig` \ +- `$(PKG_CONFIG) --libs freetype2` ++ `$(PKG_CONFIG) --libs freetype2` \ ++ `$(PKG_CONFIG) --libs harfbuzz` + + # flags + STCPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600 +diff --git a/hb.c b/hb.c +new file mode 100644 +index 0000000..f9c4f76 +--- /dev/null ++++ b/hb.c +@@ -0,0 +1,145 @@ ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include "st.h" ++ ++#define FEATURE(c1,c2,c3,c4) { .tag = HB_TAG(c1,c2,c3,c4), .value = 1, .start = HB_FEATURE_GLOBAL_START, .end = HB_FEATURE_GLOBAL_END } ++ ++void hbtransformsegment(XftFont *xfont, const Glyph *string, hb_codepoint_t *codepoints, int start, int length); ++hb_font_t *hbfindfont(XftFont *match); ++ ++typedef struct { ++ XftFont *match; ++ hb_font_t *font; ++} HbFontMatch; ++ ++static int hbfontslen = 0; ++static HbFontMatch *hbfontcache = NULL; ++ ++/* ++ * Poplulate the array with a list of font features, wrapped in FEATURE macro, ++ * e. g. ++ * FEATURE('c', 'a', 'l', 't'), FEATURE('d', 'l', 'i', 'g') ++ */ ++hb_feature_t features[] = { }; ++ ++void ++hbunloadfonts() ++{ ++ for (int i = 0; i < hbfontslen; i++) { ++ hb_font_destroy(hbfontcache[i].font); ++ XftUnlockFace(hbfontcache[i].match); ++ } ++ ++ if (hbfontcache != NULL) { ++ free(hbfontcache); ++ hbfontcache = NULL; ++ } ++ hbfontslen = 0; ++} ++ ++hb_font_t * ++hbfindfont(XftFont *match) ++{ ++ for (int i = 0; i < hbfontslen; i++) { ++ if (hbfontcache[i].match == match) ++ return hbfontcache[i].font; ++ } ++ ++ /* Font not found in cache, caching it now. */ ++ hbfontcache = realloc(hbfontcache, sizeof(HbFontMatch) * (hbfontslen + 1)); ++ FT_Face face = XftLockFace(match); ++ hb_font_t *font = hb_ft_font_create(face, NULL); ++ if (font == NULL) ++ die("Failed to load Harfbuzz font."); ++ ++ hbfontcache[hbfontslen].match = match; ++ hbfontcache[hbfontslen].font = font; ++ hbfontslen += 1; ++ ++ return font; ++} ++ ++void ++hbtransform(XftGlyphFontSpec *specs, const Glyph *glyphs, size_t len, int x, int y) ++{ ++ int start = 0, length = 1, gstart = 0; ++ hb_codepoint_t *codepoints = calloc((unsigned int)len, sizeof(hb_codepoint_t)); ++ ++ for (int idx = 1, specidx = 1; idx < len; idx++) { ++ if (glyphs[idx].mode & ATTR_WDUMMY) { ++ length += 1; ++ continue; ++ } ++ ++ if (specs[specidx].font != specs[start].font || ATTRCMP(glyphs[gstart], glyphs[idx]) || selected(x + idx, y) != selected(x + gstart, y)) { ++ hbtransformsegment(specs[start].font, glyphs, codepoints, gstart, length); ++ ++ /* Reset the sequence. */ ++ length = 1; ++ start = specidx; ++ gstart = idx; ++ } else { ++ length += 1; ++ } ++ ++ specidx++; ++ } ++ ++ /* EOL. */ ++ hbtransformsegment(specs[start].font, glyphs, codepoints, gstart, length); ++ ++ /* Apply the transformation to glyph specs. */ ++ for (int i = 0, specidx = 0; i < len; i++) { ++ if (glyphs[i].mode & ATTR_WDUMMY) ++ continue; ++ ++ if (codepoints[i] != specs[specidx].glyph) ++ ((Glyph *)glyphs)[i].mode |= ATTR_LIGA; ++ ++ specs[specidx++].glyph = codepoints[i]; ++ } ++ ++ free(codepoints); ++} ++ ++void ++hbtransformsegment(XftFont *xfont, const Glyph *string, hb_codepoint_t *codepoints, int start, int length) ++{ ++ hb_font_t *font = hbfindfont(xfont); ++ if (font == NULL) ++ return; ++ ++ Rune rune; ++ ushort mode = USHRT_MAX; ++ hb_buffer_t *buffer = hb_buffer_create(); ++ hb_buffer_set_direction(buffer, HB_DIRECTION_LTR); ++ ++ /* Fill buffer with codepoints. */ ++ for (int i = start; i < (start+length); i++) { ++ rune = string[i].u; ++ mode = string[i].mode; ++ if (mode & ATTR_WDUMMY) ++ rune = 0x0020; ++ hb_buffer_add_codepoints(buffer, &rune, 1, 0, 1); ++ } ++ ++ /* Shape the segment. */ ++ hb_shape(font, buffer, features, sizeof(features)/sizeof(hb_feature_t)); ++ ++ /* Get new glyph info. */ ++ hb_glyph_info_t *info = hb_buffer_get_glyph_infos(buffer, NULL); ++ ++ /* Write new codepoints. */ ++ for (int i = 0; i < length; i++) { ++ hb_codepoint_t gid = info[i].codepoint; ++ codepoints[start+i] = gid; ++ } ++ ++ /* Cleanup. */ ++ hb_buffer_destroy(buffer); ++} +diff --git a/hb.h b/hb.h +new file mode 100644 +index 0000000..07888df +--- /dev/null ++++ b/hb.h +@@ -0,0 +1,6 @@ ++#include ++#include ++#include ++ ++void hbunloadfonts(); ++void hbtransform(XftGlyphFontSpec *, const Glyph *, size_t, int, int); +diff --git a/st.c b/st.c +index edec064..ea13c13 100644 +--- a/st.c ++++ b/st.c +@@ -2652,7 +2652,8 @@ draw(void) + drawregion(0, 0, term.col, term.row); + if (term.scr == 0) + xdrawcursor(cx, term.c.y, term.line[term.c.y][cx], +- term.ocx, term.ocy, term.line[term.ocy][term.ocx]); ++ term.ocx, term.ocy, term.line[term.ocy][term.ocx], ++ term.line[term.ocy], term.col); + term.ocx = cx; + term.ocy = term.c.y; + xfinishdraw(); +diff --git a/st.h b/st.h +index 7ea2fd3..089b92d 100644 +--- a/st.h ++++ b/st.h +@@ -11,7 +11,8 @@ + #define DIVCEIL(n, d) (((n) + ((d) - 1)) / (d)) + #define DEFAULT(a, b) (a) = (a) ? (a) : (b) + #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x) +-#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || \ ++#define ATTRCMP(a, b) (((a).mode & (~ATTR_WRAP) & (~ATTR_LIGA)) != ((b).mode & (~ATTR_WRAP) & (~ATTR_LIGA)) || \ ++ (a).fg != (b).fg || \ + (a).bg != (b).bg) + #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + \ + (t1.tv_nsec-t2.tv_nsec)/1E6) +@@ -33,6 +34,7 @@ enum glyph_attribute { + ATTR_WRAP = 1 << 8, + ATTR_WIDE = 1 << 9, + ATTR_WDUMMY = 1 << 10, ++ ATTR_LIGA = 1 << 11, + ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT, + }; + +diff --git a/win.h b/win.h +index a6ef1b9..bc0d180 100644 +--- a/win.h ++++ b/win.h +@@ -25,7 +25,7 @@ enum win_mode { + + void xbell(void); + void xclipcopy(void); +-void xdrawcursor(int, int, Glyph, int, int, Glyph); ++void xdrawcursor(int, int, Glyph, int, int, Glyph, Line, int); + void xdrawline(Line, int, int, int); + void xfinishdraw(void); + void xloadcols(void); +diff --git a/x.c b/x.c +index 73545d8..9e980e3 100644 +--- a/x.c ++++ b/x.c +@@ -19,6 +19,7 @@ char *argv0; + #include "arg.h" + #include "st.h" + #include "win.h" ++#include "hb.h" + + /* types used in config.h */ + typedef struct { +@@ -1040,6 +1041,9 @@ xunloadfont(Font *f) + void + xunloadfonts(void) + { ++ /* Clear Harfbuzz font cache. */ ++ hbunloadfonts(); ++ + /* Free the loaded fonts in the font cache. */ + while (frclen > 0) + XftFontClose(xw.dpy, frc[--frclen].font); +@@ -1246,7 +1250,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x + mode = glyphs[i].mode; + + /* Skip dummy wide-character spacing. */ +- if (mode == ATTR_WDUMMY) ++ if (mode & ATTR_WDUMMY) + continue; + + /* Determine font for glyph if different from previous glyph. */ +@@ -1353,6 +1357,9 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x + numspecs++; + } + ++ /* Harfbuzz transformation for ligatures. */ ++ hbtransform(specs, glyphs, len, x, y); ++ + return numspecs; + } + +@@ -1502,14 +1509,17 @@ xdrawglyph(Glyph g, int x, int y) + } + + void +-xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og) ++xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og, Line line, int len) + { + Color drawcol; + + /* remove the old cursor */ + if (selected(ox, oy)) + og.mode ^= ATTR_REVERSE; +- xdrawglyph(og, ox, oy); ++ ++ /* Redraw the line where cursor was previously. ++ * It will restore the ligatures broken by the cursor. */ ++ xdrawline(line, 0, oy, len); + + if (IS_SET(MODE_HIDE)) + return; diff --git a/patches/todo/st-scrollback-0.8.5.diff b/patches/todo/st-scrollback-0.8.5.diff new file mode 100644 index 0000000..750111d --- /dev/null +++ b/patches/todo/st-scrollback-0.8.5.diff @@ -0,0 +1,350 @@ +diff --git a/config.def.h b/config.def.h +index 91ab8ca..e3b469b 100644 +--- a/config.def.h ++++ b/config.def.h +@@ -201,6 +201,8 @@ static Shortcut shortcuts[] = { + { TERMMOD, XK_Y, selpaste, {.i = 0} }, + { ShiftMask, XK_Insert, selpaste, {.i = 0} }, + { TERMMOD, XK_Num_Lock, numlock, {.i = 0} }, ++ { ShiftMask, XK_Page_Up, kscrollup, {.i = -1} }, ++ { ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} }, + }; + + /* +diff --git a/st.c b/st.c +index 51049ba..cd750f2 100644 +--- a/st.c ++++ b/st.c +@@ -35,6 +35,7 @@ + #define ESC_ARG_SIZ 16 + #define STR_BUF_SIZ ESC_BUF_SIZ + #define STR_ARG_SIZ ESC_ARG_SIZ ++#define HISTSIZE 2000 + + /* macros */ + #define IS_SET(flag) ((term.mode & (flag)) != 0) +@@ -42,6 +43,9 @@ + #define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f)) + #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c)) + #define ISDELIM(u) (u && wcschr(worddelimiters, u)) ++#define TLINE(y) ((y) < term.scr ? term.hist[((y) + term.histi - \ ++ term.scr + HISTSIZE + 1) % HISTSIZE] : \ ++ term.line[(y) - term.scr]) + + enum term_mode { + MODE_WRAP = 1 << 0, +@@ -115,6 +119,9 @@ typedef struct { + int col; /* nb col */ + Line *line; /* screen */ + Line *alt; /* alternate screen */ ++ Line hist[HISTSIZE]; /* history buffer */ ++ int histi; /* history index */ ++ int scr; /* scroll back */ + int *dirty; /* dirtyness of lines */ + TCursor c; /* cursor */ + int ocx; /* old cursor col */ +@@ -184,8 +191,8 @@ static void tnewline(int); + static void tputtab(int); + static void tputc(Rune); + static void treset(void); +-static void tscrollup(int, int); +-static void tscrolldown(int, int); ++static void tscrollup(int, int, int); ++static void tscrolldown(int, int, int); + static void tsetattr(const int *, int); + static void tsetchar(Rune, const Glyph *, int, int); + static void tsetdirt(int, int); +@@ -416,10 +423,10 @@ tlinelen(int y) + { + int i = term.col; + +- if (term.line[y][i - 1].mode & ATTR_WRAP) ++ if (TLINE(y)[i - 1].mode & ATTR_WRAP) + return i; + +- while (i > 0 && term.line[y][i - 1].u == ' ') ++ while (i > 0 && TLINE(y)[i - 1].u == ' ') + --i; + + return i; +@@ -528,7 +535,7 @@ selsnap(int *x, int *y, int direction) + * Snap around if the word wraps around at the end or + * beginning of a line. + */ +- prevgp = &term.line[*y][*x]; ++ prevgp = &TLINE(*y)[*x]; + prevdelim = ISDELIM(prevgp->u); + for (;;) { + newx = *x + direction; +@@ -543,14 +550,14 @@ selsnap(int *x, int *y, int direction) + yt = *y, xt = *x; + else + yt = newy, xt = newx; +- if (!(term.line[yt][xt].mode & ATTR_WRAP)) ++ if (!(TLINE(yt)[xt].mode & ATTR_WRAP)) + break; + } + + if (newx >= tlinelen(newy)) + break; + +- gp = &term.line[newy][newx]; ++ gp = &TLINE(newy)[newx]; + delim = ISDELIM(gp->u); + if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim + || (delim && gp->u != prevgp->u))) +@@ -571,14 +578,14 @@ selsnap(int *x, int *y, int direction) + *x = (direction < 0) ? 0 : term.col - 1; + if (direction < 0) { + for (; *y > 0; *y += direction) { +- if (!(term.line[*y-1][term.col-1].mode ++ if (!(TLINE(*y-1)[term.col-1].mode + & ATTR_WRAP)) { + break; + } + } + } else if (direction > 0) { + for (; *y < term.row-1; *y += direction) { +- if (!(term.line[*y][term.col-1].mode ++ if (!(TLINE(*y)[term.col-1].mode + & ATTR_WRAP)) { + break; + } +@@ -609,13 +616,13 @@ getsel(void) + } + + if (sel.type == SEL_RECTANGULAR) { +- gp = &term.line[y][sel.nb.x]; ++ gp = &TLINE(y)[sel.nb.x]; + lastx = sel.ne.x; + } else { +- gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0]; ++ gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0]; + lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1; + } +- last = &term.line[y][MIN(lastx, linelen-1)]; ++ last = &TLINE(y)[MIN(lastx, linelen-1)]; + while (last >= gp && last->u == ' ') + --last; + +@@ -851,6 +858,9 @@ void + ttywrite(const char *s, size_t n, int may_echo) + { + const char *next; ++ Arg arg = (Arg) { .i = term.scr }; ++ ++ kscrolldown(&arg); + + if (may_echo && IS_SET(MODE_ECHO)) + twrite(s, n, 1); +@@ -1062,12 +1072,52 @@ tswapscreen(void) + } + + void +-tscrolldown(int orig, int n) ++kscrolldown(const Arg* a) ++{ ++ int n = a->i; ++ ++ if (n < 0) ++ n = term.row + n; ++ ++ if (n > term.scr) ++ n = term.scr; ++ ++ if (term.scr > 0) { ++ term.scr -= n; ++ selscroll(0, -n); ++ tfulldirt(); ++ } ++} ++ ++void ++kscrollup(const Arg* a) ++{ ++ int n = a->i; ++ ++ if (n < 0) ++ n = term.row + n; ++ ++ if (term.scr <= HISTSIZE-n) { ++ term.scr += n; ++ selscroll(0, n); ++ tfulldirt(); ++ } ++} ++ ++void ++tscrolldown(int orig, int n, int copyhist) + { + int i; + Line temp; + + LIMIT(n, 0, term.bot-orig+1); ++ if (copyhist) { ++ term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE; ++ temp = term.hist[term.histi]; ++ term.hist[term.histi] = term.line[term.bot]; ++ term.line[term.bot] = temp; ++ } ++ + + tsetdirt(orig, term.bot-n); + tclearregion(0, term.bot-n+1, term.col-1, term.bot); +@@ -1078,17 +1128,28 @@ tscrolldown(int orig, int n) + term.line[i-n] = temp; + } + +- selscroll(orig, n); ++ if (term.scr == 0) ++ selscroll(orig, n); + } + + void +-tscrollup(int orig, int n) ++tscrollup(int orig, int n, int copyhist) + { + int i; + Line temp; + + LIMIT(n, 0, term.bot-orig+1); + ++ if (copyhist) { ++ term.histi = (term.histi + 1) % HISTSIZE; ++ temp = term.hist[term.histi]; ++ term.hist[term.histi] = term.line[orig]; ++ term.line[orig] = temp; ++ } ++ ++ if (term.scr > 0 && term.scr < HISTSIZE) ++ term.scr = MIN(term.scr + n, HISTSIZE-1); ++ + tclearregion(0, orig, term.col-1, orig+n-1); + tsetdirt(orig+n, term.bot); + +@@ -1098,7 +1159,8 @@ tscrollup(int orig, int n) + term.line[i+n] = temp; + } + +- selscroll(orig, -n); ++ if (term.scr == 0) ++ selscroll(orig, -n); + } + + void +@@ -1127,7 +1189,7 @@ tnewline(int first_col) + int y = term.c.y; + + if (y == term.bot) { +- tscrollup(term.top, 1); ++ tscrollup(term.top, 1, 1); + } else { + y++; + } +@@ -1292,14 +1354,14 @@ void + tinsertblankline(int n) + { + if (BETWEEN(term.c.y, term.top, term.bot)) +- tscrolldown(term.c.y, n); ++ tscrolldown(term.c.y, n, 0); + } + + void + tdeleteline(int n) + { + if (BETWEEN(term.c.y, term.top, term.bot)) +- tscrollup(term.c.y, n); ++ tscrollup(term.c.y, n, 0); + } + + int32_t +@@ -1736,11 +1798,11 @@ csihandle(void) + break; + case 'S': /* SU -- Scroll line up */ + DEFAULT(csiescseq.arg[0], 1); +- tscrollup(term.top, csiescseq.arg[0]); ++ tscrollup(term.top, csiescseq.arg[0], 0); + break; + case 'T': /* SD -- Scroll line down */ + DEFAULT(csiescseq.arg[0], 1); +- tscrolldown(term.top, csiescseq.arg[0]); ++ tscrolldown(term.top, csiescseq.arg[0], 0); + break; + case 'L': /* IL -- Insert blank lines */ + DEFAULT(csiescseq.arg[0], 1); +@@ -2330,7 +2392,7 @@ eschandle(uchar ascii) + return 0; + case 'D': /* IND -- Linefeed */ + if (term.c.y == term.bot) { +- tscrollup(term.top, 1); ++ tscrollup(term.top, 1, 1); + } else { + tmoveto(term.c.x, term.c.y+1); + } +@@ -2343,7 +2405,7 @@ eschandle(uchar ascii) + break; + case 'M': /* RI -- Reverse index */ + if (term.c.y == term.top) { +- tscrolldown(term.top, 1); ++ tscrolldown(term.top, 1, 1); + } else { + tmoveto(term.c.x, term.c.y-1); + } +@@ -2557,7 +2619,7 @@ twrite(const char *buf, int buflen, int show_ctrl) + void + tresize(int col, int row) + { +- int i; ++ int i, j; + int minrow = MIN(row, term.row); + int mincol = MIN(col, term.col); + int *bp; +@@ -2594,6 +2656,14 @@ tresize(int col, int row) + term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty)); + term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs)); + ++ for (i = 0; i < HISTSIZE; i++) { ++ term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph)); ++ for (j = mincol; j < col; j++) { ++ term.hist[i][j] = term.c.attr; ++ term.hist[i][j].u = ' '; ++ } ++ } ++ + /* resize each row to new width, zero-pad if needed */ + for (i = 0; i < minrow; i++) { + term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph)); +@@ -2652,7 +2722,7 @@ drawregion(int x1, int y1, int x2, int y2) + continue; + + term.dirty[y] = 0; +- xdrawline(term.line[y], x1, y, x2); ++ xdrawline(TLINE(y), x1, y, x2); + } + } + +@@ -2673,8 +2743,9 @@ draw(void) + cx--; + + drawregion(0, 0, term.col, term.row); +- xdrawcursor(cx, term.c.y, term.line[term.c.y][cx], +- term.ocx, term.ocy, term.line[term.ocy][term.ocx]); ++ if (term.scr == 0) ++ xdrawcursor(cx, term.c.y, term.line[term.c.y][cx], ++ term.ocx, term.ocy, term.line[term.ocy][term.ocx]); + term.ocx = cx; + term.ocy = term.c.y; + xfinishdraw(); +diff --git a/st.h b/st.h +index 519b9bd..da36b34 100644 +--- a/st.h ++++ b/st.h +@@ -81,6 +81,8 @@ void die(const char *, ...); + void redraw(void); + void draw(void); + ++void kscrolldown(const Arg *); ++void kscrollup(const Arg *); + void printscreen(const Arg *); + void printsel(const Arg *); + void sendbreak(const Arg *); diff --git a/patches/todo/st-scrollback-mouse-altscreen-20220127-2c5edf2.diff b/patches/todo/st-scrollback-mouse-altscreen-20220127-2c5edf2.diff new file mode 100644 index 0000000..6a8722b --- /dev/null +++ b/patches/todo/st-scrollback-mouse-altscreen-20220127-2c5edf2.diff @@ -0,0 +1,78 @@ +From 580e3f386e9215707100e9ba44797701943fd927 Mon Sep 17 00:00:00 2001 +From: asparagii +Date: Thu, 27 Jan 2022 15:49:27 +0100 +Subject: [PATCH] st-scrollback-mouse-altscreen + +--- + config.def.h | 4 ++-- + st.c | 5 +++++ + st.h | 1 + + x.c | 2 ++ + 4 files changed, 10 insertions(+), 2 deletions(-) + +diff --git a/config.def.h b/config.def.h +index c217315..c223706 100644 +--- a/config.def.h ++++ b/config.def.h +@@ -176,8 +176,8 @@ static uint forcemousemod = ShiftMask; + */ + static MouseShortcut mshortcuts[] = { + /* mask button function argument release */ +- { ShiftMask, Button4, kscrollup, {.i = 1} }, +- { ShiftMask, Button5, kscrolldown, {.i = 1} }, ++ { XK_ANY_MOD, Button4, kscrollup, {.i = 1}, 0, /* !alt */ -1 }, ++ { XK_ANY_MOD, Button5, kscrolldown, {.i = 1}, 0, /* !alt */ -1 }, + { XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 }, + { ShiftMask, Button4, ttysend, {.s = "\033[5;2~"} }, + { XK_ANY_MOD, Button4, ttysend, {.s = "\031"} }, +diff --git a/st.c b/st.c +index f3af82b..876a6bf 100644 +--- a/st.c ++++ b/st.c +@@ -1060,6 +1060,11 @@ tnew(int col, int row) + treset(); + } + ++int tisaltscr(void) ++{ ++ return IS_SET(MODE_ALTSCREEN); ++} ++ + void + tswapscreen(void) + { +diff --git a/st.h b/st.h +index da36b34..e95c6f8 100644 +--- a/st.h ++++ b/st.h +@@ -89,6 +89,7 @@ void sendbreak(const Arg *); + void toggleprinter(const Arg *); + + int tattrset(int); ++int tisaltscr(void); + void tnew(int, int); + void tresize(int, int); + void tsetdirtattr(int); +diff --git a/x.c b/x.c +index cd96575..9274556 100644 +--- a/x.c ++++ b/x.c +@@ -34,6 +34,7 @@ typedef struct { + void (*func)(const Arg *); + const Arg arg; + uint release; ++ int altscrn; /* 0: don't care, -1: not alt screen, 1: alt screen */ + } MouseShortcut; + + typedef struct { +@@ -455,6 +456,7 @@ mouseaction(XEvent *e, uint release) + for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) { + if (ms->release == release && + ms->button == e->xbutton.button && ++ (!ms->altscrn || (ms->altscrn == (tisaltscr() ? 1 : -1))) && + (match(ms->mod, state) || /* exact or forced */ + match(ms->mod, state & ~forcemousemod))) { + ms->func(&(ms->arg)); +-- +2.34.1 + diff --git a/patches/todo/st-scrollback-mouse-increment-0.8.2.diff b/patches/todo/st-scrollback-mouse-increment-0.8.2.diff new file mode 100644 index 0000000..9556a9d --- /dev/null +++ b/patches/todo/st-scrollback-mouse-increment-0.8.2.diff @@ -0,0 +1,34 @@ +From 63e717e51dcd2f59c7a3aa75b659926aa92e08f3 Mon Sep 17 00:00:00 2001 +From: Jacob Louis Prosser +Date: Mon, 5 Aug 2019 18:20:25 +1000 +Subject: [st] [patch] Exposed variable to easily change mouse scroll increment. + +--- + config.def.h | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +diff --git a/config.def.h b/config.def.h +index ad20c4c..47e4b66 100644 +--- a/config.def.h ++++ b/config.def.h +@@ -154,6 +154,7 @@ static unsigned int defaultattr = 11; + * Internal mouse shortcuts. + * Beware that overloading Button1 will disable the selection. + */ ++const unsigned int mousescrollincrement = 1; + static MouseShortcut mshortcuts[] = { + /* button mask string */ + { Button4, XK_NO_MOD, "\031" }, +@@ -162,8 +163,8 @@ static MouseShortcut mshortcuts[] = { + + MouseKey mkeys[] = { + /* button mask function argument */ +- { Button4, ShiftMask, kscrollup, {.i = 1} }, +- { Button5, ShiftMask, kscrolldown, {.i = 1} }, ++ { Button4, ShiftMask, kscrollup, {.i = mousescrollincrement} }, ++ { Button5, ShiftMask, kscrolldown, {.i = mousescrollincrement} }, + }; + + /* Internal keyboard shortcuts. */ +-- +2.22.0 diff --git a/patches/todo/st-scrollback-reflow-0.8.5.diff b/patches/todo/st-scrollback-reflow-0.8.5.diff new file mode 100644 index 0000000..085c828 --- /dev/null +++ b/patches/todo/st-scrollback-reflow-0.8.5.diff @@ -0,0 +1,1478 @@ +diff --git a/st.c b/st.c +index 91e7077..a76d983 100644 +--- a/st.c ++++ b/st.c +@@ -36,6 +36,7 @@ + #define STR_BUF_SIZ ESC_BUF_SIZ + #define STR_ARG_SIZ ESC_ARG_SIZ + #define HISTSIZE 2000 ++#define RESIZEBUFFER 1000 + + /* macros */ + #define IS_SET(flag) ((term.mode & (flag)) != 0) +@@ -43,9 +44,22 @@ + #define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f)) + #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c)) + #define ISDELIM(u) (u && wcschr(worddelimiters, u)) +-#define TLINE(y) ((y) < term.scr ? term.hist[((y) + term.histi - \ +- term.scr + HISTSIZE + 1) % HISTSIZE] : \ +- term.line[(y) - term.scr]) ++ ++#define TLINE(y) ( \ ++ (y) < term.scr ? term.hist[(term.histi + (y) - term.scr + 1 + HISTSIZE) % HISTSIZE] \ ++ : term.line[(y) - term.scr] \ ++) ++ ++#define TLINEABS(y) ( \ ++ (y) < 0 ? term.hist[(term.histi + (y) + 1 + HISTSIZE) % HISTSIZE] : term.line[(y)] \ ++) ++ ++#define UPDATEWRAPNEXT(alt, col) do { \ ++ if ((term.c.state & CURSOR_WRAPNEXT) && term.c.x + term.wrapcwidth[alt] < col) { \ ++ term.c.x += term.wrapcwidth[alt]; \ ++ term.c.state &= ~CURSOR_WRAPNEXT; \ ++ } \ ++} while (0); + + enum term_mode { + MODE_WRAP = 1 << 0, +@@ -57,6 +71,12 @@ enum term_mode { + MODE_UTF8 = 1 << 6, + }; + ++enum scroll_mode { ++ SCROLL_RESIZE = -1, ++ SCROLL_NOSAVEHIST = 0, ++ SCROLL_SAVEHIST = 1 ++}; ++ + enum cursor_movement { + CURSOR_SAVE, + CURSOR_LOAD +@@ -118,10 +138,11 @@ typedef struct { + int row; /* nb row */ + int col; /* nb col */ + Line *line; /* screen */ +- Line *alt; /* alternate screen */ + Line hist[HISTSIZE]; /* history buffer */ +- int histi; /* history index */ +- int scr; /* scroll back */ ++ int histi; /* history index */ ++ int histf; /* nb history available */ ++ int scr; /* scroll back */ ++ int wrapcwidth[2]; /* used in updating WRAPNEXT when resizing */ + int *dirty; /* dirtyness of lines */ + TCursor c; /* cursor */ + int ocx; /* old cursor col */ +@@ -179,26 +200,37 @@ static void tprinter(char *, size_t); + static void tdumpsel(void); + static void tdumpline(int); + static void tdump(void); +-static void tclearregion(int, int, int, int); ++static void tclearregion(int, int, int, int, int); + static void tcursor(int); ++static void tclearglyph(Glyph *, int); ++static void tresetcursor(void); + static void tdeletechar(int); + static void tdeleteline(int); + static void tinsertblank(int); + static void tinsertblankline(int); +-static int tlinelen(int); ++static int tlinelen(Line len); ++static int tiswrapped(Line line); ++static char *tgetglyphs(char *, const Glyph *, const Glyph *); ++static size_t tgetline(char *, const Glyph *); + static void tmoveto(int, int); + static void tmoveato(int, int); + static void tnewline(int); + static void tputtab(int); + static void tputc(Rune); + static void treset(void); +-static void tscrollup(int, int, int); +-static void tscrolldown(int, int, int); ++static void tscrollup(int, int, int, int); ++static void tscrolldown(int, int); ++static void treflow(int, int); ++static void rscrolldown(int); ++static void tresizedef(int, int); ++static void tresizealt(int, int); + static void tsetattr(const int *, int); + static void tsetchar(Rune, const Glyph *, int, int); + static void tsetdirt(int, int); + static void tsetscroll(int, int); + static void tswapscreen(void); ++static void tloaddefscreen(int, int); ++static void tloadaltscreen(int, int); + static void tsetmode(int, int, const int *, int); + static int twrite(const char *, int, int); + static void tfulldirt(void); +@@ -212,7 +244,10 @@ static void tstrsequence(uchar); + static void drawregion(int, int, int, int); + + static void selnormalize(void); +-static void selscroll(int, int); ++static void selscroll(int, int, int); ++static void selmove(int); ++static void selremove(void); ++static int regionselected(int, int, int, int); + static void selsnap(int *, int *, int); + + static size_t utf8decode(const char *, Rune *, size_t); +@@ -412,17 +447,46 @@ selinit(void) + } + + int +-tlinelen(int y) ++tlinelen(Line line) + { +- int i = term.col; ++ int i = term.col - 1; ++ ++ for (; i >= 0 && !(line[i].mode & (ATTR_SET | ATTR_WRAP)); i--); ++ return i + 1; ++} + +- if (TLINE(y)[i - 1].mode & ATTR_WRAP) +- return i; ++int ++tiswrapped(Line line) ++{ ++ int len = tlinelen(line); + +- while (i > 0 && TLINE(y)[i - 1].u == ' ') +- --i; ++ return len > 0 && (line[len - 1].mode & ATTR_WRAP); ++} + +- return i; ++char * ++tgetglyphs(char *buf, const Glyph *gp, const Glyph *lgp) ++{ ++ while (gp <= lgp) ++ if (gp->mode & ATTR_WDUMMY) { ++ gp++; ++ } else { ++ buf += utf8encode((gp++)->u, buf); ++ } ++ return buf; ++} ++ ++size_t ++tgetline(char *buf, const Glyph *fgp) ++{ ++ char *ptr; ++ const Glyph *lgp = &fgp[term.col - 1]; ++ ++ while (lgp > fgp && !(lgp->mode & (ATTR_SET | ATTR_WRAP))) ++ lgp--; ++ ptr = tgetglyphs(buf, fgp, lgp); ++ if (!(lgp->mode & ATTR_WRAP)) ++ *(ptr++) = '\n'; ++ return ptr - buf; + } + + void +@@ -462,10 +526,11 @@ selextend(int col, int row, int type, int done) + + sel.oe.x = col; + sel.oe.y = row; +- selnormalize(); + sel.type = type; ++ selnormalize(); + +- if (oldey != sel.oe.y || oldex != sel.oe.x || oldtype != sel.type || sel.mode == SEL_EMPTY) ++ if (oldey != sel.oe.y || oldex != sel.oe.x || ++ oldtype != sel.type || sel.mode == SEL_EMPTY) + tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey)); + + sel.mode = done ? SEL_IDLE : SEL_READY; +@@ -492,36 +557,43 @@ selnormalize(void) + /* expand selection over line breaks */ + if (sel.type == SEL_RECTANGULAR) + return; +- i = tlinelen(sel.nb.y); +- if (i < sel.nb.x) ++ ++ i = tlinelen(TLINE(sel.nb.y)); ++ if (sel.nb.x > i) + sel.nb.x = i; +- if (tlinelen(sel.ne.y) <= sel.ne.x) +- sel.ne.x = term.col - 1; ++ if (sel.ne.x >= tlinelen(TLINE(sel.ne.y))) ++ sel.ne.x = term.col - 1; + } + + int +-selected(int x, int y) ++regionselected(int x1, int y1, int x2, int y2) + { +- if (sel.mode == SEL_EMPTY || sel.ob.x == -1 || +- sel.alt != IS_SET(MODE_ALTSCREEN)) ++ if (sel.ob.x == -1 || sel.mode == SEL_EMPTY || ++ sel.alt != IS_SET(MODE_ALTSCREEN) || sel.nb.y > y2 || sel.ne.y < y1) + return 0; + +- if (sel.type == SEL_RECTANGULAR) +- return BETWEEN(y, sel.nb.y, sel.ne.y) +- && BETWEEN(x, sel.nb.x, sel.ne.x); ++ return (sel.type == SEL_RECTANGULAR) ? sel.nb.x <= x2 && sel.ne.x >= x1 ++ : (sel.nb.y != y2 || sel.nb.x <= x2) && ++ (sel.ne.y != y1 || sel.ne.x >= x1); ++} + +- return BETWEEN(y, sel.nb.y, sel.ne.y) +- && (y != sel.nb.y || x >= sel.nb.x) +- && (y != sel.ne.y || x <= sel.ne.x); ++int ++selected(int x, int y) ++{ ++ return regionselected(x, y, x, y); + } + + void + selsnap(int *x, int *y, int direction) + { + int newx, newy, xt, yt; ++ int rtop = 0, rbot = term.row - 1; + int delim, prevdelim; + const Glyph *gp, *prevgp; + ++ if (!IS_SET(MODE_ALTSCREEN)) ++ rtop += -term.histf + term.scr, rbot += term.scr; ++ + switch (sel.snap) { + case SNAP_WORD: + /* +@@ -536,7 +608,7 @@ selsnap(int *x, int *y, int direction) + if (!BETWEEN(newx, 0, term.col - 1)) { + newy += direction; + newx = (newx + term.col) % term.col; +- if (!BETWEEN(newy, 0, term.row - 1)) ++ if (!BETWEEN(newy, rtop, rbot)) + break; + + if (direction > 0) +@@ -547,13 +619,13 @@ selsnap(int *x, int *y, int direction) + break; + } + +- if (newx >= tlinelen(newy)) ++ if (newx >= tlinelen(TLINE(newy))) + break; + + gp = &TLINE(newy)[newx]; + delim = ISDELIM(gp->u); +- if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim +- || (delim && gp->u != prevgp->u))) ++ if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim || ++ (delim && !(gp->u == ' ' && prevgp->u == ' ')))) + break; + + *x = newx; +@@ -570,18 +642,14 @@ selsnap(int *x, int *y, int direction) + */ + *x = (direction < 0) ? 0 : term.col - 1; + if (direction < 0) { +- for (; *y > 0; *y += direction) { +- if (!(TLINE(*y-1)[term.col-1].mode +- & ATTR_WRAP)) { ++ for (; *y > rtop; *y -= 1) { ++ if (!tiswrapped(TLINE(*y-1))) + break; +- } + } + } else if (direction > 0) { +- for (; *y < term.row-1; *y += direction) { +- if (!(TLINE(*y)[term.col-1].mode +- & ATTR_WRAP)) { ++ for (; *y < rbot; *y += 1) { ++ if (!tiswrapped(TLINE(*y))) + break; +- } + } + } + break; +@@ -592,40 +660,34 @@ char * + getsel(void) + { + char *str, *ptr; +- int y, bufsize, lastx, linelen; +- const Glyph *gp, *last; ++ int y, lastx, linelen; ++ const Glyph *gp, *lgp; + +- if (sel.ob.x == -1) ++ if (sel.ob.x == -1 || sel.alt != IS_SET(MODE_ALTSCREEN)) + return NULL; + +- bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ; +- ptr = str = xmalloc(bufsize); ++ str = xmalloc((term.col + 1) * (sel.ne.y - sel.nb.y + 1) * UTF_SIZ); ++ ptr = str; + + /* append every set & selected glyph to the selection */ + for (y = sel.nb.y; y <= sel.ne.y; y++) { +- if ((linelen = tlinelen(y)) == 0) { ++ Line line = TLINE(y); ++ ++ if ((linelen = tlinelen(line)) == 0) { + *ptr++ = '\n'; + continue; + } + + if (sel.type == SEL_RECTANGULAR) { +- gp = &TLINE(y)[sel.nb.x]; ++ gp = &line[sel.nb.x]; + lastx = sel.ne.x; + } else { +- gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0]; ++ gp = &line[sel.nb.y == y ? sel.nb.x : 0]; + lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1; + } +- last = &TLINE(y)[MIN(lastx, linelen-1)]; +- while (last >= gp && last->u == ' ') +- --last; +- +- for ( ; gp <= last; ++gp) { +- if (gp->mode & ATTR_WDUMMY) +- continue; +- +- ptr += utf8encode(gp->u, ptr); +- } ++ lgp = &line[MIN(lastx, linelen-1)]; + ++ ptr = tgetglyphs(ptr, gp, lgp); + /* + * Copy and pasting of line endings is inconsistent + * in the inconsistent terminal and GUI world. +@@ -636,10 +698,10 @@ getsel(void) + * FIXME: Fix the computer world. + */ + if ((y < sel.ne.y || lastx >= linelen) && +- (!(last->mode & ATTR_WRAP) || sel.type == SEL_RECTANGULAR)) ++ (!(lgp->mode & ATTR_WRAP) || sel.type == SEL_RECTANGULAR)) + *ptr++ = '\n'; + } +- *ptr = 0; ++ *ptr = '\0'; + return str; + } + +@@ -648,9 +710,15 @@ selclear(void) + { + if (sel.ob.x == -1) + return; ++ selremove(); ++ tsetdirt(sel.nb.y, sel.ne.y); ++} ++ ++void ++selremove(void) ++{ + sel.mode = SEL_IDLE; + sel.ob.x = -1; +- tsetdirt(sel.nb.y, sel.ne.y); + } + + void +@@ -851,10 +919,8 @@ void + ttywrite(const char *s, size_t n, int may_echo) + { + const char *next; +- Arg arg = (Arg) { .i = term.scr }; +- +- kscrolldown(&arg); + ++ kscrolldown(&((Arg){ .i = term.scr })); + if (may_echo && IS_SET(MODE_ECHO)) + twrite(s, n, 1); + +@@ -990,7 +1056,7 @@ tsetdirtattr(int attr) + for (i = 0; i < term.row-1; i++) { + for (j = 0; j < term.col-1; j++) { + if (term.line[i][j].mode & attr) { +- tsetdirt(i, i); ++ term.dirty[i] = 1; + break; + } + } +@@ -1000,7 +1066,8 @@ tsetdirtattr(int attr) + void + tfulldirt(void) + { +- tsetdirt(0, term.row-1); ++ for (int i = 0; i < term.row; i++) ++ term.dirty[i] = 1; + } + + void +@@ -1017,51 +1084,116 @@ tcursor(int mode) + } + } + ++void ++tresetcursor(void) ++{ ++ term.c = (TCursor){ { .mode = ATTR_NULL, .fg = defaultfg, .bg = defaultbg }, ++ .x = 0, .y = 0, .state = CURSOR_DEFAULT }; ++} ++ + void + treset(void) + { + uint i; ++ int x, y; + +- term.c = (TCursor){{ +- .mode = ATTR_NULL, +- .fg = defaultfg, +- .bg = defaultbg +- }, .x = 0, .y = 0, .state = CURSOR_DEFAULT}; ++ tresetcursor(); + + memset(term.tabs, 0, term.col * sizeof(*term.tabs)); + for (i = tabspaces; i < term.col; i += tabspaces) + term.tabs[i] = 1; + term.top = 0; ++ term.histf = 0; ++ term.scr = 0; + term.bot = term.row - 1; + term.mode = MODE_WRAP|MODE_UTF8; + memset(term.trantbl, CS_USA, sizeof(term.trantbl)); + term.charset = 0; + ++ selremove(); + for (i = 0; i < 2; i++) { +- tmoveto(0, 0); +- tcursor(CURSOR_SAVE); +- tclearregion(0, 0, term.col-1, term.row-1); ++ tcursor(CURSOR_SAVE); /* reset saved cursor */ ++ for (y = 0; y < term.row; y++) ++ for (x = 0; x < term.col; x++) ++ tclearglyph(&term.line[y][x], 0); + tswapscreen(); + } ++ tfulldirt(); + } + + void + tnew(int col, int row) + { +- term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } }; +- tresize(col, row); +- treset(); ++ int i, j; ++ ++ for (i = 0; i < 2; i++) { ++ term.line = xmalloc(row * sizeof(Line)); ++ for (j = 0; j < row; j++) ++ term.line[j] = xmalloc(col * sizeof(Glyph)); ++ term.col = col, term.row = row; ++ tswapscreen(); ++ } ++ term.dirty = xmalloc(row * sizeof(*term.dirty)); ++ term.tabs = xmalloc(col * sizeof(*term.tabs)); ++ for (i = 0; i < HISTSIZE; i++) ++ term.hist[i] = xmalloc(col * sizeof(Glyph)); ++ treset(); + } + ++/* handle it with care */ + void + tswapscreen(void) + { +- Line *tmp = term.line; ++ static Line *altline; ++ static int altcol, altrow; ++ Line *tmpline = term.line; ++ int tmpcol = term.col, tmprow = term.row; + +- term.line = term.alt; +- term.alt = tmp; ++ term.line = altline; ++ term.col = altcol, term.row = altrow; ++ altline = tmpline; ++ altcol = tmpcol, altrow = tmprow; + term.mode ^= MODE_ALTSCREEN; +- tfulldirt(); ++} ++ ++void ++tloaddefscreen(int clear, int loadcursor) ++{ ++ int col, row, alt = IS_SET(MODE_ALTSCREEN); ++ ++ if (alt) { ++ if (clear) ++ tclearregion(0, 0, term.col-1, term.row-1, 1); ++ col = term.col, row = term.row; ++ tswapscreen(); ++ } ++ if (loadcursor) ++ tcursor(CURSOR_LOAD); ++ if (alt) ++ tresizedef(col, row); ++} ++ ++void ++tloadaltscreen(int clear, int savecursor) ++{ ++ int col, row, def = !IS_SET(MODE_ALTSCREEN); ++ ++ if (savecursor) ++ tcursor(CURSOR_SAVE); ++ if (def) { ++ col = term.col, row = term.row; ++ tswapscreen(); ++ term.scr = 0; ++ tresizealt(col, row); ++ } ++ if (clear) ++ tclearregion(0, 0, term.col-1, term.row-1, 1); ++} ++ ++int ++tisaltscreen(void) ++{ ++ return IS_SET(MODE_ALTSCREEN); + } + + void +@@ -1069,17 +1201,22 @@ kscrolldown(const Arg* a) + { + int n = a->i; + +- if (n < 0) +- n = term.row + n; ++ if (!term.scr || IS_SET(MODE_ALTSCREEN)) ++ return; + +- if (n > term.scr) +- n = term.scr; ++ if (n < 0) ++ n = MAX(term.row / -n, 1); + +- if (term.scr > 0) { ++ if (n <= term.scr) { + term.scr -= n; +- selscroll(0, -n); +- tfulldirt(); ++ } else { ++ n = term.scr; ++ term.scr = 0; + } ++ ++ if (sel.ob.x != -1 && !sel.alt) ++ selmove(-n); /* negate change in term.scr */ ++ tfulldirt(); + } + + void +@@ -1087,92 +1224,118 @@ kscrollup(const Arg* a) + { + int n = a->i; + ++ if (!term.histf || IS_SET(MODE_ALTSCREEN)) ++ return; ++ + if (n < 0) +- n = term.row + n; ++ n = MAX(term.row / -n, 1); + +- if (term.scr <= HISTSIZE-n) { ++ if (term.scr + n <= term.histf) { + term.scr += n; +- selscroll(0, n); +- tfulldirt(); ++ } else { ++ n = term.histf - term.scr; ++ term.scr = term.histf; + } ++ ++ if (sel.ob.x != -1 && !sel.alt) ++ selmove(n); /* negate change in term.scr */ ++ tfulldirt(); + } + + void +-tscrolldown(int orig, int n, int copyhist) ++tscrolldown(int top, int n) + { +- int i; ++ int i, bot = term.bot; + Line temp; + +- LIMIT(n, 0, term.bot-orig+1); +- if (copyhist) { +- term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE; +- temp = term.hist[term.histi]; +- term.hist[term.histi] = term.line[term.bot]; +- term.line[term.bot] = temp; +- } +- ++ if (n <= 0) ++ return; ++ n = MIN(n, bot-top+1); + +- tsetdirt(orig, term.bot-n); +- tclearregion(0, term.bot-n+1, term.col-1, term.bot); ++ tsetdirt(top, bot-n); ++ tclearregion(0, bot-n+1, term.col-1, bot, 1); + +- for (i = term.bot; i >= orig+n; i--) { ++ for (i = bot; i >= top+n; i--) { + temp = term.line[i]; + term.line[i] = term.line[i-n]; + term.line[i-n] = temp; + } + +- if (term.scr == 0) +- selscroll(orig, n); ++ if (sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN)) ++ selscroll(top, bot, n); + } + + void +-tscrollup(int orig, int n, int copyhist) ++tscrollup(int top, int bot, int n, int mode) + { +- int i; ++ int i, j, s; ++ int alt = IS_SET(MODE_ALTSCREEN); ++ int savehist = !alt && top == 0 && mode != SCROLL_NOSAVEHIST; + Line temp; + +- LIMIT(n, 0, term.bot-orig+1); +- +- if (copyhist) { +- term.histi = (term.histi + 1) % HISTSIZE; +- temp = term.hist[term.histi]; +- term.hist[term.histi] = term.line[orig]; +- term.line[orig] = temp; ++ if (n <= 0) ++ return; ++ n = MIN(n, bot-top+1); ++ ++ if (savehist) { ++ for (i = 0; i < n; i++) { ++ term.histi = (term.histi + 1) % HISTSIZE; ++ temp = term.hist[term.histi]; ++ for (j = 0; j < term.col; j++) ++ tclearglyph(&temp[j], 1); ++ term.hist[term.histi] = term.line[i]; ++ term.line[i] = temp; ++ } ++ term.histf = MIN(term.histf + n, HISTSIZE); ++ s = n; ++ if (term.scr) { ++ j = term.scr; ++ term.scr = MIN(j + n, HISTSIZE); ++ s = j + n - term.scr; ++ } ++ if (mode != SCROLL_RESIZE) ++ tfulldirt(); ++ } else { ++ tclearregion(0, top, term.col-1, top+n-1, 1); ++ tsetdirt(top+n, bot); + } + +- if (term.scr > 0 && term.scr < HISTSIZE) +- term.scr = MIN(term.scr + n, HISTSIZE-1); +- +- tclearregion(0, orig, term.col-1, orig+n-1); +- tsetdirt(orig+n, term.bot); +- +- for (i = orig; i <= term.bot-n; i++) { ++ for (i = top; i <= bot-n; i++) { + temp = term.line[i]; + term.line[i] = term.line[i+n]; + term.line[i+n] = temp; + } + +- if (term.scr == 0) +- selscroll(orig, -n); ++ if (sel.ob.x != -1 && sel.alt == alt) { ++ if (!savehist) { ++ selscroll(top, bot, -n); ++ } else if (s > 0) { ++ selmove(-s); ++ if (-term.scr + sel.nb.y < -term.histf) ++ selremove(); ++ } ++ } + } + + void +-selscroll(int orig, int n) ++selmove(int n) + { +- if (sel.ob.x == -1) +- return; ++ sel.ob.y += n, sel.nb.y += n; ++ sel.oe.y += n, sel.ne.y += n; ++} ++ ++void ++selscroll(int top, int bot, int n) ++{ ++ /* turn absolute coordinates into relative */ ++ top += term.scr, bot += term.scr; + +- if (BETWEEN(sel.nb.y, orig, term.bot) != BETWEEN(sel.ne.y, orig, term.bot)) { ++ if (BETWEEN(sel.nb.y, top, bot) != BETWEEN(sel.ne.y, top, bot)) { + selclear(); +- } else if (BETWEEN(sel.nb.y, orig, term.bot)) { +- sel.ob.y += n; +- sel.oe.y += n; +- if (sel.ob.y < term.top || sel.ob.y > term.bot || +- sel.oe.y < term.top || sel.oe.y > term.bot) { ++ } else if (BETWEEN(sel.nb.y, top, bot)) { ++ selmove(n); ++ if (sel.nb.y < top || sel.ne.y > bot) + selclear(); +- } else { +- selnormalize(); +- } + } + } + +@@ -1182,7 +1345,7 @@ tnewline(int first_col) + int y = term.c.y; + + if (y == term.bot) { +- tscrollup(term.top, 1, 1); ++ tscrollup(term.top, term.bot, 1, SCROLL_SAVEHIST); + } else { + y++; + } +@@ -1272,89 +1435,93 @@ tsetchar(Rune u, const Glyph *attr, int x, int y) + } else if (term.line[y][x].mode & ATTR_WDUMMY) { + term.line[y][x-1].u = ' '; + term.line[y][x-1].mode &= ~ATTR_WIDE; +- } ++ } + + term.dirty[y] = 1; + term.line[y][x] = *attr; + term.line[y][x].u = u; ++ term.line[y][x].mode |= ATTR_SET; + } + + void +-tclearregion(int x1, int y1, int x2, int y2) ++tclearglyph(Glyph *gp, int usecurattr) + { +- int x, y, temp; +- Glyph *gp; ++ if (usecurattr) { ++ gp->fg = term.c.attr.fg; ++ gp->bg = term.c.attr.bg; ++ } else { ++ gp->fg = defaultfg; ++ gp->bg = defaultbg; ++ } ++ gp->mode = ATTR_NULL; ++ gp->u = ' '; ++} + +- if (x1 > x2) +- temp = x1, x1 = x2, x2 = temp; +- if (y1 > y2) +- temp = y1, y1 = y2, y2 = temp; ++void ++tclearregion(int x1, int y1, int x2, int y2, int usecurattr) ++{ ++ int x, y; + +- LIMIT(x1, 0, term.col-1); +- LIMIT(x2, 0, term.col-1); +- LIMIT(y1, 0, term.row-1); +- LIMIT(y2, 0, term.row-1); ++ /* regionselected() takes relative coordinates */ ++ if (regionselected(x1+term.scr, y1+term.scr, x2+term.scr, y2+term.scr)) ++ selremove(); + + for (y = y1; y <= y2; y++) { + term.dirty[y] = 1; +- for (x = x1; x <= x2; x++) { +- gp = &term.line[y][x]; +- if (selected(x, y)) +- selclear(); +- gp->fg = term.c.attr.fg; +- gp->bg = term.c.attr.bg; +- gp->mode = 0; +- gp->u = ' '; +- } ++ for (x = x1; x <= x2; x++) ++ tclearglyph(&term.line[y][x], usecurattr); + } + } + + void + tdeletechar(int n) + { +- int dst, src, size; +- Glyph *line; +- +- LIMIT(n, 0, term.col - term.c.x); ++ int src, dst, size; ++ Line line; + ++ if (n <= 0) ++ return; + dst = term.c.x; +- src = term.c.x + n; ++ src = MIN(term.c.x + n, term.col); + size = term.col - src; +- line = term.line[term.c.y]; +- +- memmove(&line[dst], &line[src], size * sizeof(Glyph)); +- tclearregion(term.col-n, term.c.y, term.col-1, term.c.y); ++ if (size > 0) { /* otherwise src would point beyond the array ++ https://stackoverflow.com/questions/29844298 */ ++ line = term.line[term.c.y]; ++ memmove(&line[dst], &line[src], size * sizeof(Glyph)); ++ } ++ tclearregion(dst + size, term.c.y, term.col - 1, term.c.y, 1); + } + + void + tinsertblank(int n) + { +- int dst, src, size; +- Glyph *line; ++ int src, dst, size; ++ Line line; + +- LIMIT(n, 0, term.col - term.c.x); +- +- dst = term.c.x + n; ++ if (n <= 0) ++ return; ++ dst = MIN(term.c.x + n, term.col); + src = term.c.x; + size = term.col - dst; +- line = term.line[term.c.y]; +- +- memmove(&line[dst], &line[src], size * sizeof(Glyph)); +- tclearregion(src, term.c.y, dst - 1, term.c.y); ++ if (size > 0) { /* otherwise dst would point beyond the array */ ++ line = term.line[term.c.y]; ++ memmove(&line[dst], &line[src], size * sizeof(Glyph)); ++ } ++ tclearregion(src, term.c.y, dst - 1, term.c.y, 1); + } + + void + tinsertblankline(int n) + { + if (BETWEEN(term.c.y, term.top, term.bot)) +- tscrolldown(term.c.y, n, 0); ++ tscrolldown(term.c.y, n); + } + + void + tdeleteline(int n) + { + if (BETWEEN(term.c.y, term.top, term.bot)) +- tscrollup(term.c.y, n, 0); ++ tscrollup(term.c.y, term.bot, n, SCROLL_NOSAVEHIST); + } + + int32_t +@@ -1528,7 +1695,7 @@ tsetscroll(int t, int b) + void + tsetmode(int priv, int set, const int *args, int narg) + { +- int alt; const int *lim; ++ const int *lim; + + for (lim = args + narg; args < lim; ++args) { + if (priv) { +@@ -1589,25 +1756,18 @@ tsetmode(int priv, int set, const int *args, int narg) + xsetmode(set, MODE_8BIT); + break; + case 1049: /* swap screen & set/restore cursor as xterm */ +- if (!allowaltscreen) +- break; +- tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD); +- /* FALLTHROUGH */ + case 47: /* swap screen */ +- case 1047: ++ case 1047: /* swap screen, clearing alternate screen */ + if (!allowaltscreen) + break; +- alt = IS_SET(MODE_ALTSCREEN); +- if (alt) { +- tclearregion(0, 0, term.col-1, +- term.row-1); +- } +- if (set ^ alt) /* set is always 1 or 0 */ +- tswapscreen(); +- if (*args != 1049) +- break; +- /* FALLTHROUGH */ ++ if (set) ++ tloadaltscreen(*args == 1049, *args == 1049); ++ else ++ tloaddefscreen(*args == 1047, *args == 1049); ++ break; + case 1048: ++ if (!allowaltscreen) ++ break; + tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD); + break; + case 2004: /* 2004: bracketed paste mode */ +@@ -1659,7 +1819,7 @@ void + csihandle(void) + { + char buf[40]; +- int len; ++ int n, x; + + switch (csiescseq.mode[0]) { + default: +@@ -1757,20 +1917,30 @@ csihandle(void) + case 'J': /* ED -- Clear screen */ + switch (csiescseq.arg[0]) { + case 0: /* below */ +- tclearregion(term.c.x, term.c.y, term.col-1, term.c.y); ++ tclearregion(term.c.x, term.c.y, term.col-1, term.c.y, 1); + if (term.c.y < term.row-1) { +- tclearregion(0, term.c.y+1, term.col-1, +- term.row-1); ++ tclearregion(0, term.c.y+1, term.col-1, term.row-1, 1); + } + break; + case 1: /* above */ +- if (term.c.y > 1) +- tclearregion(0, 0, term.col-1, term.c.y-1); +- tclearregion(0, term.c.y, term.c.x, term.c.y); ++ if (term.c.y >= 1) ++ tclearregion(0, 0, term.col-1, term.c.y-1, 1); ++ tclearregion(0, term.c.y, term.c.x, term.c.y, 1); + break; + case 2: /* all */ +- tclearregion(0, 0, term.col-1, term.row-1); +- break; ++ if (IS_SET(MODE_ALTSCREEN)) { ++ tclearregion(0, 0, term.col-1, term.row-1, 1); ++ break; ++ } ++ /* vte does this: ++ tscrollup(0, term.row-1, term.row, SCROLL_SAVEHIST); */ ++ ++ /* alacritty does this: */ ++ for (n = term.row-1; n >= 0 && tlinelen(term.line[n]) == 0; n--); ++ if (n >= 0) ++ tscrollup(0, term.row-1, n+1, SCROLL_SAVEHIST); ++ tscrollup(0, term.row-1, term.row-n-1, SCROLL_NOSAVEHIST); ++ break; + default: + goto unknown; + } +@@ -1778,24 +1948,24 @@ csihandle(void) + case 'K': /* EL -- Clear line */ + switch (csiescseq.arg[0]) { + case 0: /* right */ +- tclearregion(term.c.x, term.c.y, term.col-1, +- term.c.y); ++ tclearregion(term.c.x, term.c.y, term.col-1, term.c.y, 1); + break; + case 1: /* left */ +- tclearregion(0, term.c.y, term.c.x, term.c.y); ++ tclearregion(0, term.c.y, term.c.x, term.c.y, 1); + break; + case 2: /* all */ +- tclearregion(0, term.c.y, term.col-1, term.c.y); ++ tclearregion(0, term.c.y, term.col-1, term.c.y, 1); + break; + } + break; + case 'S': /* SU -- Scroll line up */ + DEFAULT(csiescseq.arg[0], 1); +- tscrollup(term.top, csiescseq.arg[0], 0); ++ /* xterm, urxvt, alacritty save this in history */ ++ tscrollup(term.top, term.bot, csiescseq.arg[0], SCROLL_SAVEHIST); + break; + case 'T': /* SD -- Scroll line down */ + DEFAULT(csiescseq.arg[0], 1); +- tscrolldown(term.top, csiescseq.arg[0], 0); ++ tscrolldown(term.top, csiescseq.arg[0]); + break; + case 'L': /* IL -- Insert blank lines */ + DEFAULT(csiescseq.arg[0], 1); +@@ -1809,9 +1979,11 @@ csihandle(void) + tdeleteline(csiescseq.arg[0]); + break; + case 'X': /* ECH -- Erase char */ ++ if (csiescseq.arg[0] < 0) ++ return; + DEFAULT(csiescseq.arg[0], 1); +- tclearregion(term.c.x, term.c.y, +- term.c.x + csiescseq.arg[0] - 1, term.c.y); ++ x = MIN(term.c.x + csiescseq.arg[0], term.col) - 1; ++ tclearregion(term.c.x, term.c.y, x, term.c.y, 1); + break; + case 'P': /* DCH -- Delete char */ + DEFAULT(csiescseq.arg[0], 1); +@@ -1833,9 +2005,9 @@ csihandle(void) + break; + case 'n': /* DSR – Device Status Report (cursor position) */ + if (csiescseq.arg[0] == 6) { +- len = snprintf(buf, sizeof(buf), "\033[%i;%iR", ++ n = snprintf(buf, sizeof(buf), "\033[%i;%iR", + term.c.y+1, term.c.x+1); +- ttywrite(buf, len, 0); ++ ttywrite(buf, n, 0); + } + break; + case 'r': /* DECSTBM -- Set Scrolling Region */ +@@ -2128,16 +2300,8 @@ tdumpsel(void) + void + tdumpline(int n) + { +- char buf[UTF_SIZ]; +- const Glyph *bp, *end; +- +- bp = &term.line[n][0]; +- end = &bp[MIN(tlinelen(n), term.col) - 1]; +- if (bp != end || bp->u != ' ') { +- for ( ; bp <= end; ++bp) +- tprinter(buf, utf8encode(bp->u, buf)); +- } +- tprinter("\n", 1); ++ char str[(term.col + 1) * UTF_SIZ]; ++ tprinter(str, tgetline(str, &term.line[n][0])); + } + + void +@@ -2358,7 +2522,7 @@ eschandle(uchar ascii) + return 0; + case 'D': /* IND -- Linefeed */ + if (term.c.y == term.bot) { +- tscrollup(term.top, 1, 1); ++ tscrollup(term.top, term.bot, 1, SCROLL_SAVEHIST); + } else { + tmoveto(term.c.x, term.c.y+1); + } +@@ -2371,7 +2535,7 @@ eschandle(uchar ascii) + break; + case 'M': /* RI -- Reverse index */ + if (term.c.y == term.top) { +- tscrolldown(term.top, 1, 1); ++ tscrolldown(term.top, 1); + } else { + tmoveto(term.c.x, term.c.y-1); + } +@@ -2511,7 +2675,8 @@ check_control_code: + */ + return; + } +- if (selected(term.c.x, term.c.y)) ++ /* selected() takes relative coordinates */ ++ if (selected(term.c.x + term.scr, term.c.y + term.scr)) + selclear(); + + gp = &term.line[term.c.y][term.c.x]; +@@ -2546,6 +2711,7 @@ check_control_code: + if (term.c.x+width < term.col) { + tmoveto(term.c.x+width, term.c.y); + } else { ++ term.wrapcwidth[IS_SET(MODE_ALTSCREEN)] = width; + term.c.state |= CURSOR_WRAPNEXT; + } + } +@@ -2583,93 +2749,275 @@ twrite(const char *buf, int buflen, int show_ctrl) + } + + void +-tresize(int col, int row) ++treflow(int col, int row) + { + int i, j; +- int minrow = MIN(row, term.row); +- int mincol = MIN(col, term.col); +- int *bp; +- TCursor c; +- +- if (col < 1 || row < 1) { +- fprintf(stderr, +- "tresize: error resizing to %dx%d\n", col, row); +- return; ++ int oce, nce, bot, scr; ++ int ox = 0, oy = -term.histf, nx = 0, ny = -1, len; ++ int cy = -1; /* proxy for new y coordinate of cursor */ ++ int nlines; ++ Line *buf, line; ++ ++ /* y coordinate of cursor line end */ ++ for (oce = term.c.y; oce < term.row - 1 && ++ tiswrapped(term.line[oce]); oce++); ++ ++ nlines = term.histf + oce + 1; ++ if (col < term.col) { ++ /* each line can take this many lines after reflow */ ++ j = (term.col + col - 1) / col; ++ nlines = j * nlines; ++ if (nlines > HISTSIZE + RESIZEBUFFER + row) { ++ nlines = HISTSIZE + RESIZEBUFFER + row; ++ oy = -(nlines / j - oce - 1); ++ } + } ++ buf = xmalloc(nlines * sizeof(Line)); ++ do { ++ if (!nx) ++ buf[++ny] = xmalloc(col * sizeof(Glyph)); ++ if (!ox) { ++ line = TLINEABS(oy); ++ len = tlinelen(line); ++ } ++ if (oy == term.c.y) { ++ if (!ox) ++ len = MAX(len, term.c.x + 1); ++ /* update cursor */ ++ if (cy < 0 && term.c.x - ox < col - nx) { ++ term.c.x = nx + term.c.x - ox, cy = ny; ++ UPDATEWRAPNEXT(0, col); ++ } ++ } ++ /* get reflowed lines in buf */ ++ if (col - nx > len - ox) { ++ memcpy(&buf[ny][nx], &line[ox], (len-ox) * sizeof(Glyph)); ++ nx += len - ox; ++ if (len == 0 || !(line[len - 1].mode & ATTR_WRAP)) { ++ for (j = nx; j < col; j++) ++ tclearglyph(&buf[ny][j], 0); ++ nx = 0; ++ } else if (nx > 0) { ++ buf[ny][nx - 1].mode &= ~ATTR_WRAP; ++ } ++ ox = 0, oy++; ++ } else if (col - nx == len - ox) { ++ memcpy(&buf[ny][nx], &line[ox], (col-nx) * sizeof(Glyph)); ++ ox = 0, oy++, nx = 0; ++ } else/* if (col - nx < len - ox) */ { ++ memcpy(&buf[ny][nx], &line[ox], (col-nx) * sizeof(Glyph)); ++ ox += col - nx; ++ buf[ny][col - 1].mode |= ATTR_WRAP; ++ nx = 0; ++ } ++ } while (oy <= oce); ++ if (nx) ++ for (j = nx; j < col; j++) ++ tclearglyph(&buf[ny][j], 0); + +- /* +- * slide screen to keep cursor where we expect it - +- * tscrollup would work here, but we can optimize to +- * memmove because we're freeing the earlier lines +- */ +- for (i = 0; i <= term.c.y - row; i++) { ++ /* free extra lines */ ++ for (i = row; i < term.row; i++) + free(term.line[i]); +- free(term.alt[i]); ++ /* resize to new height */ ++ term.line = xrealloc(term.line, row * sizeof(Line)); ++ ++ bot = MIN(ny, row - 1); ++ scr = MAX(row - term.row, 0); ++ /* update y coordinate of cursor line end */ ++ nce = MIN(oce + scr, bot); ++ /* update cursor y coordinate */ ++ term.c.y = nce - (ny - cy); ++ if (term.c.y < 0) { ++ j = nce, nce = MIN(nce + -term.c.y, bot); ++ term.c.y += nce - j; ++ while (term.c.y < 0) { ++ free(buf[ny--]); ++ term.c.y++; ++ } + } +- /* ensure that both src and dst are not NULL */ +- if (i > 0) { +- memmove(term.line, term.line + i, row * sizeof(Line)); +- memmove(term.alt, term.alt + i, row * sizeof(Line)); ++ /* allocate new rows */ ++ for (i = row - 1; i > nce; i--) { ++ term.line[i] = xmalloc(col * sizeof(Glyph)); ++ for (j = 0; j < col; j++) ++ tclearglyph(&term.line[i][j], 0); + } +- for (i += row; i < term.row; i++) { ++ /* fill visible area */ ++ for (/*i = nce */; i >= term.row; i--, ny--) ++ term.line[i] = buf[ny]; ++ for (/*i = term.row - 1 */; i >= 0; i--, ny--) { + free(term.line[i]); +- free(term.alt[i]); ++ term.line[i] = buf[ny]; ++ } ++ /* fill lines in history buffer and update term.histf */ ++ for (/*i = -1 */; ny >= 0 && i >= -HISTSIZE; i--, ny--) { ++ j = (term.histi + i + 1 + HISTSIZE) % HISTSIZE; ++ free(term.hist[j]); ++ term.hist[j] = buf[ny]; + } ++ term.histf = -i - 1; ++ term.scr = MIN(term.scr, term.histf); ++ /* resize rest of the history lines */ ++ for (/*i = -term.histf - 1 */; i >= -HISTSIZE; i--) { ++ j = (term.histi + i + 1 + HISTSIZE) % HISTSIZE; ++ term.hist[j] = xrealloc(term.hist[j], col * sizeof(Glyph)); ++ } ++ free(buf); ++} + +- /* resize to new height */ +- term.line = xrealloc(term.line, row * sizeof(Line)); +- term.alt = xrealloc(term.alt, row * sizeof(Line)); +- term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty)); +- term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs)); ++void ++rscrolldown(int n) ++{ ++ int i; ++ Line temp; + +- for (i = 0; i < HISTSIZE; i++) { +- term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph)); +- for (j = mincol; j < col; j++) { +- term.hist[i][j] = term.c.attr; +- term.hist[i][j].u = ' '; +- } +- } ++ /* can never be true as of now ++ if (IS_SET(MODE_ALTSCREEN)) ++ return; */ + +- /* resize each row to new width, zero-pad if needed */ +- for (i = 0; i < minrow; i++) { +- term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph)); +- term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph)); +- } ++ if ((n = MIN(n, term.histf)) <= 0) ++ return; + +- /* allocate any new rows */ +- for (/* i = minrow */; i < row; i++) { +- term.line[i] = xmalloc(col * sizeof(Glyph)); +- term.alt[i] = xmalloc(col * sizeof(Glyph)); ++ for (i = term.c.y + n; i >= n; i--) { ++ temp = term.line[i]; ++ term.line[i] = term.line[i-n]; ++ term.line[i-n] = temp; + } ++ for (/*i = n - 1 */; i >= 0; i--) { ++ temp = term.line[i]; ++ term.line[i] = term.hist[term.histi]; ++ term.hist[term.histi] = temp; ++ term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE; ++ } ++ term.c.y += n; ++ term.histf -= n; ++ if ((i = term.scr - n) >= 0) { ++ term.scr = i; ++ } else { ++ term.scr = 0; ++ if (sel.ob.x != -1 && !sel.alt) ++ selmove(-i); ++ } ++} ++ ++void ++tresize(int col, int row) ++{ ++ int *bp; ++ ++ /* col and row are always MAX(_, 1) ++ if (col < 1 || row < 1) { ++ fprintf(stderr, "tresize: error resizing to %dx%d\n", col, row); ++ return; ++ } */ ++ ++ term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty)); ++ term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs)); + if (col > term.col) { + bp = term.tabs + term.col; +- + memset(bp, 0, sizeof(*term.tabs) * (col - term.col)); + while (--bp > term.tabs && !*bp) + /* nothing */ ; + for (bp += tabspaces; bp < term.tabs + col; bp += tabspaces) + *bp = 1; + } +- /* update terminal size */ +- term.col = col; +- term.row = row; +- /* reset scrolling region */ +- tsetscroll(0, row-1); +- /* make use of the LIMIT in tmoveto */ +- tmoveto(term.c.x, term.c.y); +- /* Clearing both screens (it makes dirty all lines) */ +- c = term.c; +- for (i = 0; i < 2; i++) { +- if (mincol < col && 0 < minrow) { +- tclearregion(mincol, 0, col - 1, minrow - 1); ++ ++ if (IS_SET(MODE_ALTSCREEN)) ++ tresizealt(col, row); ++ else ++ tresizedef(col, row); ++} ++ ++void ++tresizedef(int col, int row) ++{ ++ int i, j; ++ ++ /* return if dimensions haven't changed */ ++ if (term.col == col && term.row == row) { ++ tfulldirt(); ++ return; ++ } ++ if (col != term.col) { ++ if (!sel.alt) ++ selremove(); ++ treflow(col, row); ++ } else { ++ /* slide screen up if otherwise cursor would get out of the screen */ ++ if (term.c.y >= row) { ++ tscrollup(0, term.row - 1, term.c.y - row + 1, SCROLL_RESIZE); ++ term.c.y = row - 1; + } +- if (0 < col && minrow < row) { +- tclearregion(0, minrow, col - 1, row - 1); ++ for (i = row; i < term.row; i++) ++ free(term.line[i]); ++ ++ /* resize to new height */ ++ term.line = xrealloc(term.line, row * sizeof(Line)); ++ /* allocate any new rows */ ++ for (i = term.row; i < row; i++) { ++ term.line[i] = xmalloc(col * sizeof(Glyph)); ++ for (j = 0; j < col; j++) ++ tclearglyph(&term.line[i][j], 0); + } +- tswapscreen(); +- tcursor(CURSOR_LOAD); ++ /* scroll down as much as height has increased */ ++ rscrolldown(row - term.row); ++ } ++ /* update terminal size */ ++ term.col = col, term.row = row; ++ /* reset scrolling region */ ++ term.top = 0, term.bot = row - 1; ++ /* dirty all lines */ ++ tfulldirt(); ++} ++ ++void ++tresizealt(int col, int row) ++{ ++ int i, j; ++ ++ /* return if dimensions haven't changed */ ++ if (term.col == col && term.row == row) { ++ tfulldirt(); ++ return; + } +- term.c = c; ++ if (sel.alt) ++ selremove(); ++ /* slide screen up if otherwise cursor would get out of the screen */ ++ for (i = 0; i <= term.c.y - row; i++) ++ free(term.line[i]); ++ if (i > 0) { ++ /* ensure that both src and dst are not NULL */ ++ memmove(term.line, term.line + i, row * sizeof(Line)); ++ term.c.y = row - 1; ++ } ++ for (i += row; i < term.row; i++) ++ free(term.line[i]); ++ /* resize to new height */ ++ term.line = xrealloc(term.line, row * sizeof(Line)); ++ /* resize to new width */ ++ for (i = 0; i < MIN(row, term.row); i++) { ++ term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph)); ++ for (j = term.col; j < col; j++) ++ tclearglyph(&term.line[i][j], 0); ++ } ++ /* allocate any new rows */ ++ for (/*i = MIN(row, term.row) */; i < row; i++) { ++ term.line[i] = xmalloc(col * sizeof(Glyph)); ++ for (j = 0; j < col; j++) ++ tclearglyph(&term.line[i][j], 0); ++ } ++ /* update cursor */ ++ if (term.c.x >= col) { ++ term.c.state &= ~CURSOR_WRAPNEXT; ++ term.c.x = col - 1; ++ } else { ++ UPDATEWRAPNEXT(1, col); ++ } ++ /* update terminal size */ ++ term.col = col, term.row = row; ++ /* reset scrolling region */ ++ term.top = 0, term.bot = row - 1; ++ /* dirty all lines */ ++ tfulldirt(); + } + + void +@@ -2709,9 +3057,8 @@ draw(void) + cx--; + + drawregion(0, 0, term.col, term.row); +- if (term.scr == 0) +- xdrawcursor(cx, term.c.y, term.line[term.c.y][cx], +- term.ocx, term.ocy, term.line[term.ocy][term.ocx]); ++ xdrawcursor(cx, term.c.y, term.line[term.c.y][cx], ++ term.ocx, term.ocy, term.line[term.ocy][term.ocx]); + term.ocx = cx; + term.ocy = term.c.y; + xfinishdraw(); +diff --git a/st.h b/st.h +index 818a6f8..514ec08 100644 +--- a/st.h ++++ b/st.h +@@ -22,17 +22,19 @@ + + enum glyph_attribute { + ATTR_NULL = 0, +- ATTR_BOLD = 1 << 0, +- ATTR_FAINT = 1 << 1, +- ATTR_ITALIC = 1 << 2, +- ATTR_UNDERLINE = 1 << 3, +- ATTR_BLINK = 1 << 4, +- ATTR_REVERSE = 1 << 5, +- ATTR_INVISIBLE = 1 << 6, +- ATTR_STRUCK = 1 << 7, +- ATTR_WRAP = 1 << 8, +- ATTR_WIDE = 1 << 9, +- ATTR_WDUMMY = 1 << 10, ++ ATTR_SET = 1 << 0, ++ ATTR_BOLD = 1 << 1, ++ ATTR_FAINT = 1 << 2, ++ ATTR_ITALIC = 1 << 3, ++ ATTR_UNDERLINE = 1 << 4, ++ ATTR_BLINK = 1 << 5, ++ ATTR_REVERSE = 1 << 6, ++ ATTR_INVISIBLE = 1 << 7, ++ ATTR_STRUCK = 1 << 8, ++ ATTR_WRAP = 1 << 9, ++ ATTR_WIDE = 1 << 10, ++ ATTR_WDUMMY = 1 << 11, ++ ATTR_SELECTED = 1 << 12, + ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT, + }; + +@@ -90,6 +92,7 @@ void toggleprinter(const Arg *); + + int tattrset(int); + void tnew(int, int); ++int tisaltscreen(void); + void tresize(int, int); + void tsetdirtattr(int); + void ttyhangup(void); diff --git a/patches/todo/st-undercurl-0.8.4-20210822.diff b/patches/todo/st-undercurl-0.8.4-20210822.diff new file mode 100644 index 0000000..fab2ddc --- /dev/null +++ b/patches/todo/st-undercurl-0.8.4-20210822.diff @@ -0,0 +1,605 @@ +diff --git a/config.def.h b/config.def.h +index 6f05dce..7ae1b92 100644 +--- a/config.def.h ++++ b/config.def.h +@@ -470,3 +470,27 @@ static char ascii_printable[] = + " !\"#$%&'()*+,-./0123456789:;<=>?" + "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_" + "`abcdefghijklmnopqrstuvwxyz{|}~"; ++ ++/** ++ * Undercurl style. Set UNDERCURL_STYLE to one of the available styles. ++ * ++ * Curly: Dunno how to draw it *shrug* ++ * _ _ _ _ ++ * ( ) ( ) ( ) ( ) ++ * (_) (_) (_) (_) ++ * ++ * Spiky: ++ * /\ /\ /\ /\ ++ * \/ \/ \/ ++ * ++ * Capped: ++ * _ _ _ ++ * / \ / \ / \ ++ * \_/ \_/ ++ */ ++// Available styles ++#define UNDERCURL_CURLY 0 ++#define UNDERCURL_SPIKY 1 ++#define UNDERCURL_CAPPED 2 ++// Active style ++#define UNDERCURL_STYLE UNDERCURL_SPIKY +diff --git a/st.c b/st.c +index 76b7e0d..542ab3a 100644 +--- a/st.c ++++ b/st.c +@@ -33,6 +33,7 @@ + #define UTF_SIZ 4 + #define ESC_BUF_SIZ (128*UTF_SIZ) + #define ESC_ARG_SIZ 16 ++#define CAR_PER_ARG 4 + #define STR_BUF_SIZ ESC_BUF_SIZ + #define STR_ARG_SIZ ESC_ARG_SIZ + +@@ -139,6 +140,7 @@ typedef struct { + int arg[ESC_ARG_SIZ]; + int narg; /* nb of args */ + char mode[2]; ++ int carg[ESC_ARG_SIZ][CAR_PER_ARG]; /* colon args */ + } CSIEscape; + + /* STR Escape sequence structs */ +@@ -159,6 +161,7 @@ static void ttywriteraw(const char *, size_t); + + static void csidump(void); + static void csihandle(void); ++static void readcolonargs(char **, int, int[][CAR_PER_ARG]); + static void csiparse(void); + static void csireset(void); + static int eschandle(uchar); +@@ -1131,6 +1134,28 @@ tnewline(int first_col) + tmoveto(first_col ? 0 : term.c.x, y); + } + ++void ++readcolonargs(char **p, int cursor, int params[][CAR_PER_ARG]) ++{ ++ int i = 0; ++ for (; i < CAR_PER_ARG; i++) ++ params[cursor][i] = -1; ++ ++ if (**p != ':') ++ return; ++ ++ char *np = NULL; ++ i = 0; ++ ++ while (**p == ':' && i < CAR_PER_ARG) { ++ while (**p == ':') ++ (*p)++; ++ params[cursor][i] = strtol(*p, &np, 10); ++ *p = np; ++ i++; ++ } ++} ++ + void + csiparse(void) + { +@@ -1153,6 +1178,7 @@ csiparse(void) + v = -1; + csiescseq.arg[csiescseq.narg++] = v; + p = np; ++ readcolonargs(&p, csiescseq.narg-1, csiescseq.carg); + if (*p != ';' || csiescseq.narg == ESC_ARG_SIZ) + break; + p++; +@@ -1369,6 +1395,10 @@ tsetattr(int *attr, int l) + ATTR_STRUCK ); + term.c.attr.fg = defaultfg; + term.c.attr.bg = defaultbg; ++ term.c.attr.ustyle = -1; ++ term.c.attr.ucolor[0] = -1; ++ term.c.attr.ucolor[1] = -1; ++ term.c.attr.ucolor[2] = -1; + break; + case 1: + term.c.attr.mode |= ATTR_BOLD; +@@ -1380,7 +1410,14 @@ tsetattr(int *attr, int l) + term.c.attr.mode |= ATTR_ITALIC; + break; + case 4: +- term.c.attr.mode |= ATTR_UNDERLINE; ++ term.c.attr.ustyle = csiescseq.carg[i][0]; ++ ++ if (term.c.attr.ustyle != 0) ++ term.c.attr.mode |= ATTR_UNDERLINE; ++ else ++ term.c.attr.mode &= ~ATTR_UNDERLINE; ++ ++ term.c.attr.mode ^= ATTR_DIRTYUNDERLINE; + break; + case 5: /* slow blink */ + /* FALLTHROUGH */ +@@ -1431,6 +1468,18 @@ tsetattr(int *attr, int l) + case 49: + term.c.attr.bg = defaultbg; + break; ++ case 58: ++ term.c.attr.ucolor[0] = csiescseq.carg[i][1]; ++ term.c.attr.ucolor[1] = csiescseq.carg[i][2]; ++ term.c.attr.ucolor[2] = csiescseq.carg[i][3]; ++ term.c.attr.mode ^= ATTR_DIRTYUNDERLINE; ++ break; ++ case 59: ++ term.c.attr.ucolor[0] = -1; ++ term.c.attr.ucolor[1] = -1; ++ term.c.attr.ucolor[2] = -1; ++ term.c.attr.mode ^= ATTR_DIRTYUNDERLINE; ++ break; + default: + if (BETWEEN(attr[i], 30, 37)) { + term.c.attr.fg = attr[i] - 30; +diff --git a/st.h b/st.h +index 3d351b6..95bdcbd 100644 +--- a/st.h ++++ b/st.h +@@ -34,6 +34,7 @@ enum glyph_attribute { + ATTR_WIDE = 1 << 9, + ATTR_WDUMMY = 1 << 10, + ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT, ++ ATTR_DIRTYUNDERLINE = 1 << 15, + }; + + enum selection_mode { +@@ -65,6 +66,8 @@ typedef struct { + ushort mode; /* attribute flags */ + uint32_t fg; /* foreground */ + uint32_t bg; /* background */ ++ int ustyle; /* underline style */ ++ int ucolor[3]; /* underline color */ + } Glyph; + + typedef Glyph *Line; +diff --git a/st.info b/st.info +index 8201ad6..659878c 100644 +--- a/st.info ++++ b/st.info +@@ -1,4 +1,5 @@ + st-mono| simpleterm monocolor, ++ Su, + acsc=+C\,D-A.B0E``aaffgghFiGjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~, + am, + bce, +diff --git a/x.c b/x.c +index 210f184..3a0e79e 100644 +--- a/x.c ++++ b/x.c +@@ -45,6 +45,14 @@ typedef struct { + signed char appcursor; /* application cursor */ + } Key; + ++/* Undercurl slope types */ ++enum undercurl_slope_type { ++ UNDERCURL_SLOPE_ASCENDING = 0, ++ UNDERCURL_SLOPE_TOP_CAP = 1, ++ UNDERCURL_SLOPE_DESCENDING = 2, ++ UNDERCURL_SLOPE_BOTTOM_CAP = 3 ++}; ++ + /* X modifiers */ + #define XK_ANY_MOD UINT_MAX + #define XK_NO_MOD 0 +@@ -1339,6 +1347,51 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x + return numspecs; + } + ++static int isSlopeRising (int x, int iPoint, int waveWidth) ++{ ++ // . . . . ++ // / \ / \ / \ / \ ++ // / \ / \ / \ / \ ++ // . . . . . ++ ++ // Find absolute `x` of point ++ x += iPoint * (waveWidth/2); ++ ++ // Find index of absolute wave ++ int absSlope = x / ((float)waveWidth/2); ++ ++ return (absSlope % 2); ++} ++ ++static int getSlope (int x, int iPoint, int waveWidth) ++{ ++ // Sizes: Caps are half width of slopes ++ // 1_2 1_2 1_2 1_2 ++ // / \ / \ / \ / \ ++ // / \ / \ / \ / \ ++ // 0 3_0 3_0 3_0 3_ ++ // <2-> <1> <---6----> ++ ++ // Find type of first point ++ int firstType; ++ x -= (x / waveWidth) * waveWidth; ++ if (x < (waveWidth * (2.f/6.f))) ++ firstType = UNDERCURL_SLOPE_ASCENDING; ++ else if (x < (waveWidth * (3.f/6.f))) ++ firstType = UNDERCURL_SLOPE_TOP_CAP; ++ else if (x < (waveWidth * (5.f/6.f))) ++ firstType = UNDERCURL_SLOPE_DESCENDING; ++ else ++ firstType = UNDERCURL_SLOPE_BOTTOM_CAP; ++ ++ // Find type of given point ++ int pointType = (iPoint % 4); ++ pointType += firstType; ++ pointType %= 4; ++ ++ return pointType; ++} ++ + void + xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y) + { +@@ -1461,8 +1514,357 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i + + /* Render underline and strikethrough. */ + if (base.mode & ATTR_UNDERLINE) { +- XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1, +- width, 1); ++ // Underline Color ++ const int widthThreshold = 28; // +1 width every widthThreshold px of font ++ int wlw = (win.ch / widthThreshold) + 1; // Wave Line Width ++ int linecolor; ++ if ((base.ucolor[0] >= 0) && ++ !(base.mode & ATTR_BLINK && win.mode & MODE_BLINK) && ++ !(base.mode & ATTR_INVISIBLE) ++ ) { ++ // Special color for underline ++ // Index ++ if (base.ucolor[1] < 0) { ++ linecolor = dc.col[base.ucolor[0]].pixel; ++ } ++ // RGB ++ else { ++ XColor lcolor; ++ lcolor.red = base.ucolor[0] * 257; ++ lcolor.green = base.ucolor[1] * 257; ++ lcolor.blue = base.ucolor[2] * 257; ++ lcolor.flags = DoRed | DoGreen | DoBlue; ++ XAllocColor(xw.dpy, xw.cmap, &lcolor); ++ linecolor = lcolor.pixel; ++ } ++ } else { ++ // Foreground color for underline ++ linecolor = fg->pixel; ++ } ++ ++ XGCValues ugcv = { ++ .foreground = linecolor, ++ .line_width = wlw, ++ .line_style = LineSolid, ++ .cap_style = CapNotLast ++ }; ++ ++ GC ugc = XCreateGC(xw.dpy, XftDrawDrawable(xw.draw), ++ GCForeground | GCLineWidth | GCLineStyle | GCCapStyle, ++ &ugcv); ++ ++ // Underline Style ++ if (base.ustyle != 3) { ++ //XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1, width, 1); ++ XFillRectangle(xw.dpy, XftDrawDrawable(xw.draw), ugc, winx, ++ winy + dc.font.ascent + 1, width, wlw); ++ } else if (base.ustyle == 3) { ++ int ww = win.cw;//width; ++ int wh = dc.font.descent - wlw/2 - 1;//r.height/7; ++ int wx = winx; ++ int wy = winy + win.ch - dc.font.descent; ++ ++#if UNDERCURL_STYLE == UNDERCURL_CURLY ++ // Draw waves ++ int narcs = charlen * 2 + 1; ++ XArc *arcs = xmalloc(sizeof(XArc) * narcs); ++ ++ int i = 0; ++ for (i = 0; i < charlen-1; i++) { ++ arcs[i*2] = (XArc) { ++ .x = wx + win.cw * i + ww / 4, ++ .y = wy, ++ .width = win.cw / 2, ++ .height = wh, ++ .angle1 = 0, ++ .angle2 = 180 * 64 ++ }; ++ arcs[i*2+1] = (XArc) { ++ .x = wx + win.cw * i + ww * 0.75, ++ .y = wy, ++ .width = win.cw/2, ++ .height = wh, ++ .angle1 = 180 * 64, ++ .angle2 = 180 * 64 ++ }; ++ } ++ // Last wave ++ arcs[i*2] = (XArc) {wx + ww * i + ww / 4, wy, ww / 2, wh, ++ 0, 180 * 64 }; ++ // Last wave tail ++ arcs[i*2+1] = (XArc) {wx + ww * i + ww * 0.75, wy, ceil(ww / 2.), ++ wh, 180 * 64, 90 * 64}; ++ // First wave tail ++ i++; ++ arcs[i*2] = (XArc) {wx - ww/4 - 1, wy, ceil(ww / 2.), wh, 270 * 64, ++ 90 * 64 }; ++ ++ XDrawArcs(xw.dpy, XftDrawDrawable(xw.draw), ugc, arcs, narcs); ++ ++ free(arcs); ++#elif UNDERCURL_STYLE == UNDERCURL_SPIKY ++ // Make the underline corridor larger ++ /* ++ wy -= wh; ++ */ ++ wh *= 2; ++ ++ // Set the angle of the slope to 45° ++ ww = wh; ++ ++ // Position of wave is independent of word, it's absolute ++ wx = (wx / (ww/2)) * (ww/2); ++ ++ int marginStart = winx - wx; ++ ++ // Calculate number of points with floating precision ++ float n = width; // Width of word in pixels ++ n = (n / ww) * 2; // Number of slopes (/ or \) ++ n += 2; // Add two last points ++ int npoints = n; // Convert to int ++ ++ // Total length of underline ++ float waveLength = 0; ++ ++ if (npoints >= 3) { ++ // We add an aditional slot in case we use a bonus point ++ XPoint *points = xmalloc(sizeof(XPoint) * (npoints + 1)); ++ ++ // First point (Starts with the word bounds) ++ points[0] = (XPoint) { ++ .x = wx + marginStart, ++ .y = (isSlopeRising(wx, 0, ww)) ++ ? (wy - marginStart + ww/2.f) ++ : (wy + marginStart) ++ }; ++ ++ // Second point (Goes back to the absolute point coordinates) ++ points[1] = (XPoint) { ++ .x = (ww/2.f) - marginStart, ++ .y = (isSlopeRising(wx, 1, ww)) ++ ? (ww/2.f - marginStart) ++ : (-ww/2.f + marginStart) ++ }; ++ waveLength += (ww/2.f) - marginStart; ++ ++ // The rest of the points ++ for (int i = 2; i < npoints-1; i++) { ++ points[i] = (XPoint) { ++ .x = ww/2, ++ .y = (isSlopeRising(wx, i, ww)) ++ ? wh/2 ++ : -wh/2 ++ }; ++ waveLength += ww/2; ++ } ++ ++ // Last point ++ points[npoints-1] = (XPoint) { ++ .x = ww/2, ++ .y = (isSlopeRising(wx, npoints-1, ww)) ++ ? wh/2 ++ : -wh/2 ++ }; ++ waveLength += ww/2; ++ ++ // End ++ if (waveLength < width) { // Add a bonus point? ++ int marginEnd = width - waveLength; ++ points[npoints] = (XPoint) { ++ .x = marginEnd, ++ .y = (isSlopeRising(wx, npoints, ww)) ++ ? (marginEnd) ++ : (-marginEnd) ++ }; ++ ++ npoints++; ++ } else if (waveLength > width) { // Is last point too far? ++ int marginEnd = waveLength - width; ++ points[npoints-1].x -= marginEnd; ++ if (isSlopeRising(wx, npoints-1, ww)) ++ points[npoints-1].y -= (marginEnd); ++ else ++ points[npoints-1].y += (marginEnd); ++ } ++ ++ // Draw the lines ++ XDrawLines(xw.dpy, XftDrawDrawable(xw.draw), ugc, points, npoints, ++ CoordModePrevious); ++ ++ // Draw a second underline with an offset of 1 pixel ++ if ( ((win.ch / (widthThreshold/2)) % 2)) { ++ points[0].x++; ++ ++ XDrawLines(xw.dpy, XftDrawDrawable(xw.draw), ugc, points, ++ npoints, CoordModePrevious); ++ } ++ ++ // Free resources ++ free(points); ++ } ++#else // UNDERCURL_CAPPED ++ // Cap is half of wave width ++ float capRatio = 0.5f; ++ ++ // Make the underline corridor larger ++ wh *= 2; ++ ++ // Set the angle of the slope to 45° ++ ww = wh; ++ ww *= 1 + capRatio; // Add a bit of width for the cap ++ ++ // Position of wave is independent of word, it's absolute ++ wx = (wx / ww) * ww; ++ ++ float marginStart; ++ switch(getSlope(winx, 0, ww)) { ++ case UNDERCURL_SLOPE_ASCENDING: ++ marginStart = winx - wx; ++ break; ++ case UNDERCURL_SLOPE_TOP_CAP: ++ marginStart = winx - (wx + (ww * (2.f/6.f))); ++ break; ++ case UNDERCURL_SLOPE_DESCENDING: ++ marginStart = winx - (wx + (ww * (3.f/6.f))); ++ break; ++ case UNDERCURL_SLOPE_BOTTOM_CAP: ++ marginStart = winx - (wx + (ww * (5.f/6.f))); ++ break; ++ } ++ ++ // Calculate number of points with floating precision ++ float n = width; // Width of word in pixels ++ // ._. ++ n = (n / ww) * 4; // Number of points (./ \.) ++ n += 2; // Add two last points ++ int npoints = n; // Convert to int ++ ++ // Position of the pen to draw the lines ++ float penX = 0; ++ float penY = 0; ++ ++ if (npoints >= 3) { ++ XPoint *points = xmalloc(sizeof(XPoint) * (npoints + 1)); ++ ++ // First point (Starts with the word bounds) ++ penX = winx; ++ switch (getSlope(winx, 0, ww)) { ++ case UNDERCURL_SLOPE_ASCENDING: ++ penY = wy + wh/2.f - marginStart; ++ break; ++ case UNDERCURL_SLOPE_TOP_CAP: ++ penY = wy; ++ break; ++ case UNDERCURL_SLOPE_DESCENDING: ++ penY = wy + marginStart; ++ break; ++ case UNDERCURL_SLOPE_BOTTOM_CAP: ++ penY = wy + wh/2.f; ++ break; ++ } ++ points[0].x = penX; ++ points[0].y = penY; ++ ++ // Second point (Goes back to the absolute point coordinates) ++ switch (getSlope(winx, 1, ww)) { ++ case UNDERCURL_SLOPE_ASCENDING: ++ penX += ww * (1.f/6.f) - marginStart; ++ penY += 0; ++ break; ++ case UNDERCURL_SLOPE_TOP_CAP: ++ penX += ww * (2.f/6.f) - marginStart; ++ penY += -wh/2.f + marginStart; ++ break; ++ case UNDERCURL_SLOPE_DESCENDING: ++ penX += ww * (1.f/6.f) - marginStart; ++ penY += 0; ++ break; ++ case UNDERCURL_SLOPE_BOTTOM_CAP: ++ penX += ww * (2.f/6.f) - marginStart; ++ penY += -marginStart + wh/2.f; ++ break; ++ } ++ points[1].x = penX; ++ points[1].y = penY; ++ ++ // The rest of the points ++ for (int i = 2; i < npoints; i++) { ++ switch (getSlope(winx, i, ww)) { ++ case UNDERCURL_SLOPE_ASCENDING: ++ case UNDERCURL_SLOPE_DESCENDING: ++ penX += ww * (1.f/6.f); ++ penY += 0; ++ break; ++ case UNDERCURL_SLOPE_TOP_CAP: ++ penX += ww * (2.f/6.f); ++ penY += -wh / 2.f; ++ break; ++ case UNDERCURL_SLOPE_BOTTOM_CAP: ++ penX += ww * (2.f/6.f); ++ penY += wh / 2.f; ++ break; ++ } ++ points[i].x = penX; ++ points[i].y = penY; ++ } ++ ++ // End ++ float waveLength = penX - winx; ++ if (waveLength < width) { // Add a bonus point? ++ int marginEnd = width - waveLength; ++ penX += marginEnd; ++ switch(getSlope(winx, npoints, ww)) { ++ case UNDERCURL_SLOPE_ASCENDING: ++ case UNDERCURL_SLOPE_DESCENDING: ++ //penY += 0; ++ break; ++ case UNDERCURL_SLOPE_TOP_CAP: ++ penY += -marginEnd; ++ break; ++ case UNDERCURL_SLOPE_BOTTOM_CAP: ++ penY += marginEnd; ++ break; ++ } ++ ++ points[npoints].x = penX; ++ points[npoints].y = penY; ++ ++ npoints++; ++ } else if (waveLength > width) { // Is last point too far? ++ int marginEnd = waveLength - width; ++ points[npoints-1].x -= marginEnd; ++ switch(getSlope(winx, npoints-1, ww)) { ++ case UNDERCURL_SLOPE_TOP_CAP: ++ points[npoints-1].y += marginEnd; ++ break; ++ case UNDERCURL_SLOPE_BOTTOM_CAP: ++ points[npoints-1].y -= marginEnd; ++ break; ++ default: ++ break; ++ } ++ } ++ ++ // Draw the lines ++ XDrawLines(xw.dpy, XftDrawDrawable(xw.draw), ugc, points, npoints, ++ CoordModeOrigin); ++ ++ // Draw a second underline with an offset of 1 pixel ++ if ( ((win.ch / (widthThreshold/2)) % 2)) { ++ for (int i = 0; i < npoints; i++) ++ points[i].x++; ++ ++ XDrawLines(xw.dpy, XftDrawDrawable(xw.draw), ugc, points, ++ npoints, CoordModeOrigin); ++ } ++ ++ // Free resources ++ free(points); ++ } ++#endif ++ } ++ ++ XFreeGC(xw.dpy, ugc); + } + + if (base.mode & ATTR_STRUCK) {