#ifndef RXVT_H_ /* include once only */ #define RXVT_H_ #include #include #include #include #include #ifdef HAVE_STDINT_H #include #endif #include #include #include #include #ifdef HAVE_SYS_IOCTL_H #include #endif #ifdef HAVE_SYS_STRREDIR_H #include #endif #if HAVE_WCHAR_H # include #else // stdlib.h might provide it #endif #include // we assume that Xlib.h defines XPointer, and it does since at least 1994... extern "C" { #include #include #include } #if UNICODE_3 typedef uint32_t text_t; #else typedef uint16_t text_t; // saves lots of memory #endif typedef uint32_t rend_t; typedef int32_t tlen_t; // was int16_t, but this results in smaller code and memory use typedef int32_t tlen_t_; // specifically for use in the line_t structure #include "feature.h" #if defined (ISO_14755) || defined (ENABLE_PERL) # define ENABLE_OVERLAY 1 #endif #if ENABLE_PERL # define ENABLE_FRILLS 1 # define ENABLE_COMBINING 1 #endif #if ENABLE_FRILLS # define ENABLE_XEMBED 1 # define ENABLE_EWMH 1 # define ENABLE_XIM_ONTHESPOT 1 # define CURSOR_BLINK 1 # define OPTION_HC 1 # define BUILTIN_GLYPHS 1 #else # define ENABLE_MINIMAL 1 #endif #include #include #include #include #include #if HAVE_PIXBUF # include #endif #if XRENDER && (HAVE_PIXBUF || ENABLE_TRANSPARENCY) # define HAVE_IMG 1 #endif #define ECB_NO_THREADS 1 #include "ecb.h" #include "encoding.h" #include "rxvtutil.h" #include "rxvtfont.h" #include "rxvttoolkit.h" #include "rxvtimg.h" #include "scrollbar.h" #include "ev_cpp.h" #include "rxvtperl.h" // try to avoid some macros to decrease code size, on some systems #if ENABLE_MINIMAL # define strcmp(a,b) (strcmp)(a,b) # define strlen(a) (strlen)(a) # define strcpy(a,b) (strcpy)(a,b) # define memset(a,c,l) (memset)(a,c,l) # define memcpy(a,b,l) (memcpy)(a,b,l) #endif /* ***************************************************************************** * SYSTEM HACKS ***************************************************************************** */ #include #ifndef STDIN_FILENO # define STDIN_FILENO 0 # define STDOUT_FILENO 1 # define STDERR_FILENO 2 #endif #ifndef EXIT_SUCCESS /* missing from */ # define EXIT_SUCCESS 0 /* exit function success */ # define EXIT_FAILURE 1 /* exit function failure */ #endif /****************************************************************************/ // exception thrown on fatal (per-instance) errors class rxvt_failure_exception : public std::exception { public: const char * what () const noexcept override { return ""; } }; // exception thrown when the command parser runs out of input data class out_of_input { }; /* ***************************************************************************** * PROTOTYPES ***************************************************************************** */ // main.C #define SET_LOCALE(locale) rxvt_set_locale (locale) extern bool rxvt_set_locale (const char *locale) noexcept; extern void rxvt_push_locale (const char *locale) noexcept; extern void rxvt_pop_locale () noexcept; void rxvt_init (); // misc.C char * rxvt_wcstombs (const wchar_t *str, int len = -1); wchar_t * rxvt_mbstowcs (const char *str, int len = -1); char * rxvt_wcstoutf8 (const wchar_t *str, int len = -1); wchar_t * rxvt_utf8towcs (const char *str, int len = -1); const char * rxvt_basename (const char *str) noexcept; void rxvt_vlog (const char *fmt, va_list arg_ptr) noexcept; void rxvt_log (const char *fmt,...) noexcept; void rxvt_warn (const char *fmt,...) noexcept; ecb_noreturn ecb_cold void rxvt_fatal (const char *fmt, ...); ecb_noreturn ecb_cold void rxvt_exit_failure (); void * rxvt_malloc (size_t size); void * rxvt_calloc (size_t number, size_t size); void * rxvt_realloc (void *ptr, size_t size); char * rxvt_strtrim (char *str) noexcept; char ** rxvt_strsplit (char delim, const char *str) noexcept; static inline void rxvt_free_strsplit (char **ptr) noexcept { free (ptr[0]); free (ptr); } KeySym rxvt_XKeycodeToKeysym (Display *dpy, KeyCode keycode, int index); ///////////////////////////////////////////////////////////////////////////// // temporarily replace the process environment extern char **environ; extern char **rxvt_environ; // the original environ pointer static inline void set_environ (char **envv) { #if ENABLE_PERL assert (envv); #else if (envv) #endif environ = envv; } struct localise_env { char **orig_env; localise_env (char **new_env) { orig_env = environ; environ = new_env; } ~localise_env () { environ = orig_env; } }; /* ***************************************************************************** * STRUCTURES AND TYPEDEFS ***************************************************************************** */ /* * the 'essential' information for reporting Mouse Events * pared down from XButtonEvent */ struct mouse_event { int clicks; Time time; /* milliseconds */ unsigned int state; /* key or button mask */ unsigned int button; /* detail */ }; #if ENABLE_XEMBED // XEMBED messages # define XEMBED_EMBEDDED_NOTIFY 0 # define XEMBED_WINDOW_ACTIVATE 1 # define XEMBED_WINDOW_DEACTIVATE 2 # define XEMBED_REQUEST_FOCUS 3 # define XEMBED_FOCUS_IN 4 # define XEMBED_FOCUS_OUT 5 # define XEMBED_FOCUS_NEXT 6 # define XEMBED_FOCUS_PREV 7 # define XEMBED_MODALITY_ON 10 # define XEMBED_MODALITY_OFF 11 # define XEMBED_REGISTER_ACCELERATOR 12 # define XEMBED_UNREGISTER_ACCELERATOR 13 # define XEMBED_ACTIVATE_ACCELERATOR 14 // XEMBED detail code # define XEMBED_FOCUS_CURRENT 0 # define XEMBED_FOCUS_FIRST 1 # define XEMBED_FOCUS_LAST 2 # define XEMBED_MAPPED (1 << 0) #endif /* ***************************************************************************** * NORMAL DEFINES ***************************************************************************** */ /* COLORTERM, TERM environment variables */ #define COLORTERMENV "rxvt" #if HAVE_IMG # define COLORTERMENVFULL COLORTERMENV "-xpm" #else # define COLORTERMENVFULL COLORTERMENV #endif #ifndef TERMENV # if USE_256_COLORS # define TERMENV "rxvt-unicode-256color" # else # define TERMENV "rxvt-unicode" # endif #endif // Hidden color cube for indexed 24-bit colors. There are fewer blue levels // because normal human eye is less sensitive to the blue component than to // the red or green. (https://en.m.wikipedia.org/wiki/Color_depth#8-bit_color) #if USE_256_COLORS // 7x7x5=245 < 254 unused color indices # define Red_levels 7 # define Green_levels 7 # define Blue_levels 5 #else // 6x6x4=144 < 166 unused color indices # define Red_levels 6 # define Green_levels 6 # define Blue_levels 4 #endif #define RGB24_CUBE_SIZE (Red_levels * Green_levels * Blue_levels) #if defined (NO_MOUSE_REPORT) && !defined (NO_MOUSE_REPORT_SCROLLBAR) # define NO_MOUSE_REPORT_SCROLLBAR 1 #endif #define scrollBar_esc 30 #if !defined (RXVT_SCROLLBAR) && !defined (NEXT_SCROLLBAR) # define NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING 1 #endif enum { NO_REFRESH = 0, /* Window not visible at all! */ FAST_REFRESH = 1, /* Fully exposed window */ SLOW_REFRESH = 2, /* Partially exposed window */ }; #ifdef NO_SECONDARY_SCREEN # define NSCREENS 0 #else # define NSCREENS 1 #endif /* flags for rxvt_term::scr_gotorc () */ enum { C_RELATIVE = 1, /* col movement is relative */ R_RELATIVE = 2, /* row movement is relative */ RELATIVE = C_RELATIVE | R_RELATIVE, }; /* modes for rxvt_term::scr_insdel_chars (), rxvt_term::scr_insdel_lines () */ enum { INSERT = -1, /* don't change these values */ DELETE = +1, ERASE = +2, }; /* modes for rxvt_term::scr_page () - scroll page. used by scrollbar window */ enum page_dirn { DN = -1, NO_DIR = 0, UP = 1, }; /* arguments for rxvt_term::scr_change_screen () */ enum { PRIMARY = 0, SECONDARY, }; // define various rendition bits and masks. the rendition word // is 32 bits in size, and we should use it as efficiently as possible #define RS_None 0 // GET_BGATTR depends on RS_fgShift > RS_bgShift #define RS_colorMask ((1UL << Color_Bits) - 1UL) #define RS_bgShift 0 #define RS_fgShift (RS_bgShift + Color_Bits) #define RS_bgMask (RS_colorMask << RS_bgShift) #define RS_fgMask (RS_colorMask << RS_fgShift) // must have space for rxvt_fontset::fontCount * 2 + 2 values #define RS_fontShift (RS_fgShift + Color_Bits) #define RS_Careful (1UL << RS_fontShift) /* be careful when drawing these */ #define RS_fontCount rxvt_fontset::fontCount #define RS_fontMask ((RS_fontCount << (RS_fontShift + 1)) | RS_Careful) // includes RS_Careful // toggle this to force redraw, must be != RS_Careful and otherwise "pretty neutral" #define RS_redraw (2UL << RS_fontShift) #define RS_Sel (1UL << 22) // 4 custom bits for extensions #define RS_customCount 16UL #define RS_customShift 23 #define RS_customMask ((RS_customCount - 1UL) << RS_customShift) // font styles #define RS_Bold (1UL << RS_styleShift) #define RS_Italic (2UL << RS_styleShift) #define RS_styleCount 4 #define RS_styleShift 27 #define RS_styleMask (RS_Bold | RS_Italic) // fake styles #define RS_Blink (1UL << 29) #define RS_RVid (1UL << 30) // reverse video #define RS_Uline (1UL << 31) // underline #define RS_baseattrMask (RS_Italic | RS_Bold | RS_Blink | RS_RVid | RS_Uline) #define RS_attrMask (RS_baseattrMask | RS_fontMask) #define DEFAULT_RSTYLE (RS_None | (Color_fg << RS_fgShift) | (Color_bg << RS_bgShift)) #define OVERLAY_RSTYLE (RS_None | (Color_Black << RS_fgShift) | (Color_Yellow << RS_bgShift)) enum { C0_NUL = 0x00, C0_SOH, C0_STX, C0_ETX, C0_EOT, C0_ENQ, C0_ACK, C0_BEL, C0_BS , C0_HT , C0_LF , C0_VT , C0_FF , C0_CR , C0_SO , C0_SI , C0_DLE, C0_DC1, C0_DC2, D0_DC3, C0_DC4, C0_NAK, C0_SYN, C0_ETB, C0_CAN, C0_EM , C0_SUB, C0_ESC, C0_IS4, C0_IS3, C0_IS2, C0_IS1, }; struct string_term { unsigned char v[3]; }; #define CHAR_ST 0x9c /* 0234 */ /* * XTerm Operating System Commands: ESC ] Ps;Pt (ST|BEL) * colour extensions by Christian W. Zuckschwerdt */ enum { XTerm_name = 0, XTerm_iconName = 1, XTerm_title = 2, XTerm_property = 3, // change X property XTerm_Color = 4, // change colors XTerm_Color00 = 10, // change fg color XTerm_Color01 = 11, // change bg color XTerm_Color_cursor = 12, // change actual 'Cursor' color XTerm_Color_pointer_fg = 13, // change actual 'Pointer' fg color XTerm_Color_pointer_bg = 14, // change actual 'Pointer' bg color XTerm_Color05 = 15, // not implemented (tektronix fg) XTerm_Color06 = 16, // not implemented (tektronix bg) XTerm_Color_HC = 17, // change actual 'Highlight' bg color XTerm_Color_HTC = 19, // change actual 'Highlight' fg color XTerm_logfile = 46, // not implemented XTerm_font = 50, XTerm_konsole30 = 30, // reserved for konsole XTerm_konsole31 = 31, // reserved for konsole XTerm_emacs51 = 51, // reserved for emacs shell /* * rxvt extensions of XTerm OSCs: ESC ] Ps;Pt (ST|BEL) */ // deprecated Rxvt_restoreFG = 39, Rxvt_restoreBG = 49, Rxvt_dumpscreen = 55, // dump scrollback and all of screen URxvt_locale = 701, // change locale URxvt_version = 702, // request version URxvt_Color_IT = 704, // change actual 'Italic' colour URxvt_Color_BD = 706, // change actual 'Bold' color URxvt_Color_UL = 707, // change actual 'Underline' color URxvt_Color_border = 708, URxvt_font = 710, URxvt_boldFont = 711, URxvt_italicFont = 712, URxvt_boldItalicFont = 713, URxvt_view_up = 720, URxvt_view_down = 721, URxvt_cellinfo = 776, // returns font cell width, height etc. URxvt_perl = 777, // for use by perl extensions, starts with "extension-name;" }; /* Words starting with `Color_' are colours. Others are counts */ /* * The PixColor and rendition colour usage should probably be decoupled * on the unnecessary items, e.g. Color_pointer, but won't bother * until we need to. Also, be aware of usage in pixcolor_set */ enum colour_list { Color_none = -2, Color_transparent = -1, Color_fg = 0, Color_bg, minCOLOR, /* 2 */ Color_Black = minCOLOR, Color_Red3, Color_Green3, Color_Yellow3, Color_Blue3, Color_Magenta3, Color_Cyan3, maxCOLOR, /* minCOLOR + 7 */ #ifndef NO_BRIGHTCOLOR Color_AntiqueWhite = maxCOLOR, minBrightCOLOR, /* maxCOLOR + 1 */ Color_Grey25 = minBrightCOLOR, Color_Red, Color_Green, Color_Yellow, Color_Blue, Color_Magenta, Color_Cyan, maxBrightCOLOR, /* minBrightCOLOR + 7 */ Color_White = maxBrightCOLOR, #else Color_White = maxCOLOR, #endif minTermCOLOR = Color_White + 1, #if USE_256_COLORS maxTermCOLOR = Color_White + 240, #else maxTermCOLOR = Color_White + 72, #endif minTermCOLOR24, maxTermCOLOR24 = minTermCOLOR24 + RGB24_CUBE_SIZE - 1, #ifndef NO_CURSORCOLOR Color_cursor, Color_cursor2, #endif Color_pointer_fg, Color_pointer_bg, Color_border, #ifndef NO_BOLD_UNDERLINE_REVERSE Color_BD, Color_IT, Color_UL, Color_RV, #endif #if ENABLE_FRILLS Color_underline, #endif #ifdef OPTION_HC Color_HC, Color_HTC, #endif Color_scroll, #ifdef RXVT_SCROLLBAR Color_trough, #endif #if OFF_FOCUS_FADING Color_fade, #endif NRS_COLORS, /* */ #ifdef RXVT_SCROLLBAR Color_topShadow = NRS_COLORS, Color_bottomShadow, TOTAL_COLORS #else TOTAL_COLORS = NRS_COLORS #endif }; #if USE_256_COLORS # define Color_Bits 9 // 0 .. maxTermCOLOR24 #else # define Color_Bits 8 // 0 .. maxTermCOLOR24 #endif #if maxTermCOLOR24 >= (1 << Color_Bits) # error color index overflow #endif /* * Resource list */ enum { # define def(name) Rs_ ## name, # define reserve(name,count) Rs_ ## name ## _ = Rs_ ## name + (count) - 1, # include "rsinc.h" # undef def # undef reserve NUM_RESOURCES }; /* DEC private modes */ #define PrivMode_132 (1UL<<0) #define PrivMode_132OK (1UL<<1) #define PrivMode_rVideo (1UL<<2) #define PrivMode_relOrigin (1UL<<3) #define PrivMode_Screen (1UL<<4) #define PrivMode_Autowrap (1UL<<5) #define PrivMode_aplCUR (1UL<<6) #define PrivMode_aplKP (1UL<<7) #define PrivMode_HaveBackSpace (1UL<<8) #define PrivMode_BackSpace (1UL<<9) #define PrivMode_ShiftKeys (1UL<<10) #define PrivMode_VisibleCursor (1UL<<11) #define PrivMode_MouseX10 (1UL<<12) #define PrivMode_MouseX11 (1UL<<13) #define PrivMode_scrollBar (1UL<<14) #define PrivMode_TtyOutputInh (1UL<<15) #define PrivMode_Keypress (1UL<<16) #define PrivMode_smoothScroll (1UL<<17) #define PrivMode_vt52 (1UL<<18) #define PrivMode_LFNL (1UL<<19) #define PrivMode_MouseBtnEvent (1UL<<20) #define PrivMode_MouseAnyEvent (1UL<<21) #define PrivMode_BracketPaste (1UL<<22) #define PrivMode_ExtMouseUTF8 (1UL<<23) // xterm pseudo-utf-8 hack #define PrivMode_ExtMouseUrxvt (1UL<<24) // xterm pseudo-utf-8, but works in non-utf-8-locales #define PrivMode_BlinkingCursor (1UL<<25) #define PrivMode_FocusEvent (1UL<<26) #define PrivMode_ExtMouseSGR (1UL<<27) #define PrivMode_mouse_report (PrivMode_MouseX10|PrivMode_MouseX11|PrivMode_MouseBtnEvent|PrivMode_MouseAnyEvent) #ifdef ALLOW_132_MODE # define PrivMode_Default (PrivMode_Autowrap|PrivMode_ShiftKeys|PrivMode_VisibleCursor|PrivMode_132OK) #else # define PrivMode_Default (PrivMode_Autowrap|PrivMode_ShiftKeys|PrivMode_VisibleCursor) #endif // do not change these constants lightly, there are many interdependencies #define IMBUFSIZ 128 // input modifier buffer sizes #define KBUFSZ 512 // size of keyboard mapping buffer #define CBUFSIZ 32768 // size of command buffer (longest command sequence possible) #define CBUFCNT 8 // never call pty_fill/cmd_parse more than this often in a row #define UBUFSIZ 2048 // character buffer #if ENABLE_FRILLS # include typedef struct _mwmhints { CARD32 flags; CARD32 functions; CARD32 decorations; INT32 input_mode; CARD32 status; } MWMHints; #endif /* Motif window hints */ #define MWM_HINTS_FUNCTIONS (1L << 0) #define MWM_HINTS_DECORATIONS (1L << 1) #define MWM_HINTS_INPUT_MODE (1L << 2) #define MWM_HINTS_STATUS (1L << 3) /* bit definitions for MwmHints.functions */ #define MWM_FUNC_ALL (1L << 0) #define MWM_FUNC_RESIZE (1L << 1) #define MWM_FUNC_MOVE (1L << 2) #define MWM_FUNC_MINIMIZE (1L << 3) #define MWM_FUNC_MAXIMIZE (1L << 4) #define MWM_FUNC_CLOSE (1L << 5) /* bit definitions for MwmHints.decorations */ #define MWM_DECOR_ALL (1L << 0) #define MWM_DECOR_BORDER (1L << 1) #define MWM_DECOR_RESIZEH (1L << 2) #define MWM_DECOR_TITLE (1L << 3) #define MWM_DECOR_MENU (1L << 4) #define MWM_DECOR_MINIMIZE (1L << 5) #define MWM_DECOR_MAXIMIZE (1L << 6) /* bit definitions for MwmHints.inputMode */ #define MWM_INPUT_MODELESS 0 #define MWM_INPUT_PRIMARY_APPLICATION_MODAL 1 #define MWM_INPUT_SYSTEM_MODAL 2 #define MWM_INPUT_FULL_APPLICATION_MODAL 3 #define PROP_MWM_HINTS_ELEMENTS 5 /* ***************************************************************************** * MACRO DEFINES ***************************************************************************** */ // speed hack, copy some member variable into a local variable of the same name #define dLocal(type,name) type const name = this->name // for speed reasons, we assume that all codepoints 32 to 126 are // single-width. #define WCWIDTH(c) (IN_RANGE_INC (c, 0x20, 0x7e) ? 1 : wcwidth (c)) /* convert pixel dimensions to row/column values. Everything as int32_t */ #define Pixel2Col(x) Pixel2Width((int32_t)(x)) #define Pixel2Row(y) Pixel2Height((int32_t)(y)) #define Pixel2Width(x) ((int32_t)(x) / (int32_t)fwidth) #define Pixel2Height(y) ((int32_t)(y) / (int32_t)fheight) #define Col2Pixel(col) ((int32_t)Width2Pixel(col)) #define Row2Pixel(row) ((int32_t)Height2Pixel(row)) #define Width2Pixel(n) ((int32_t)(n) * (int32_t)fwidth) #define Height2Pixel(n) ((int32_t)(n) * (int32_t)fheight) #define LINENO_of(t,n) MOD ((t)->term_start + int(n), (t)->total_rows) #define ROW_of(t,n) (t)->row_buf [LINENO_of ((t), n)] #define LINENO(n) LINENO_of (this, n) #define ROW(n) ROW_of (this, n) /* how to build & extract colors and attributes */ #define GET_BASEFG(x) (((x) & RS_fgMask) >> RS_fgShift) #define GET_BASEBG(x) (((x) & RS_bgMask) >> RS_bgShift) #define GET_FONT(x) (((x) & RS_fontMask) >> RS_fontShift) #define SET_FONT(x,fid) (((x) & ~RS_fontMask) | ((fid) << RS_fontShift)) #define GET_STYLE(x) (((x) & RS_styleMask) >> RS_styleShift) #define SET_STYLE(x,style) (((x) & ~RS_styleMask) | ((style) << RS_styleShift)) #define GET_ATTR(x) (((x) & RS_attrMask)) #define SET_FGCOLOR(x,fg) (((x) & ~RS_fgMask) | ((fg) << RS_fgShift)) #define SET_BGCOLOR(x,bg) (((x) & ~RS_bgMask) | ((bg) << RS_bgShift)) #define SET_ATTR(x,a) (((x) & ~RS_attrMask) | (a)) #define RS_SAME(a,b) (!(((a) ^ (b)) & ~RS_Careful)) #define PIXCOLOR_NAME(idx) rs[Rs_color + (idx)] #define ISSET_PIXCOLOR(idx) (!!rs[Rs_color + (idx)]) #if ENABLE_STYLES # define FONTSET_of(t,style) (t)->fontset[GET_STYLE (style)] #else # define FONTSET_of(t,style) (t)->fontset[0] #endif #define FONTSET(style) FONTSET_of (this, style) typedef callback log_callback; typedef callback getfd_callback; /****************************************************************************/ #define LINE_LONGER 0x0001 // line is continued on the next row #define LINE_FILTERED 0x0002 // line has been filtered #define LINE_COMPRESSED 0x0004 // line has been compressed (NYI) #define LINE_FILTER 0x0008 // line needs to be filtered before display (NYI) #define LINE_BIDI 0x0010 // line needs bidi (NYI) struct line_t { text_t *t; // terminal the text rend_t *r; // rendition, uses RS_ flags tlen_t_ l; // length of each text line uint32_t f; // flags bool valid () { return l >= 0; } void alloc () { l = 0; } bool is_longer () { return f & LINE_LONGER; } void is_longer (int set) { if (set) f |= LINE_LONGER; else f &= ~LINE_LONGER; } void clear () { t = 0; r = 0; l = 0; f = 0; } void touch () // call whenever a line is changed/touched/updated { #if ENABLE_PERL f &= ~LINE_FILTERED; #endif } void touch (int col) { max_it (l, col); touch (); } }; /****************************************************************************/ // primitive wrapper around mbstate_t to ensure initialisation struct mbstate { mbstate_t mbs; operator mbstate_t *() { return &mbs; } void reset () { memset (&mbs, 0, sizeof (mbs)); } mbstate () { reset (); } }; /****************************************************************************/ #define UNICODE_MASK 0x1fffffUL #if UNICODE_3 # define COMPOSE_LO 0x110000UL # define COMPOSE_HI 0x1fffffUL # define IS_COMPOSE(n) ((int32_t)(n) >= COMPOSE_LO) #else # if ENABLE_PERL # define COMPOSE_LO 0xe000UL // our _own_ functions don't like (illegal) surrogates # define COMPOSE_HI 0xf8ffUL // in utf-8, so use private use area only # else # define COMPOSE_LO 0xd800UL # define COMPOSE_HI 0xf8ffUL # endif # define IS_COMPOSE(n) IN_RANGE_INC ((n), COMPOSE_LO, COMPOSE_HI) #endif #if ENABLE_COMBINING // compose chars are used to represent composite characters // that are not representable in unicode, as well as characters // not fitting in the BMP. struct compose_char { // c1 can be any character != NOCHAR, including another compose character // c2 must always be a zero-width character or NOCHAR, in case // this just extends beyond the BMP. unicode_t c1, c2; compose_char (unicode_t c1, unicode_t c2) : c1(c1), c2(c2) { } }; struct rxvt_composite_vec { vector v; text_t compose (unicode_t c1, unicode_t c2 = NOCHAR); template int expand (unicode_t c, T *r); int expand (unicode_t c) { return expand (c, (text_t *)0); } compose_char *operator [](text_t c) { return c >= COMPOSE_LO && c < COMPOSE_LO + v.size () ? &v[c - COMPOSE_LO] : 0; } }; extern class rxvt_composite_vec rxvt_composite; #endif #if 0 // expand the sequence into a static array // works even without ENABLE_COMBINING template struct rxvt_compose_expand_static { #if ENABLE_COMBINING enum { max_size = max_size_ }; T chrs[max_size]; // expand sequence and return start ptr // guarantees at least one output // get the length with length () on that ptr T *operator ()(unicode_t c) { T *cur = chrs + max_size; while (ecb_expect_false (IS_COMPOSE (c))) if (ecb_expect_true (c - COMPOSE_LO < rxvt_composite.v.size ())) { compose_char *cc = &rxvt_composite.v [c - COMPOSE_LO]; if (cc->c2 != NOCHAR) { cur -= cur > chrs; *cur = cc->c2; } c = cc->c1; } else c = NOCHAR; cur -= cur > chrs; *cur = c; return cur; } int length (T *first) { return chrs + max_size - first; } #else T chr; T *operator ()(text_t c); { chr = c; return &chr; } int length (T *first) { return 1; } #endif }; #endif /****************************************************************************/ #ifdef KEYSYM_RESOURCE class keyboard_manager; #endif typedef struct rxvt_term *rxvt_t; extern rxvt_t rxvt_current_term; #define SET_R(r) rxvt_current_term = const_cast(r) #define GET_R rxvt_current_term /* ------------------------------------------------------------------------- */ struct overlay_base { int x, y, w, h; // overlay dimensions text_t **text; rend_t **rend; // while tempting to add swap() etc. here, it effectively only increases code size }; /* ------------------------------------------------------------------------- */ typedef struct { int row; int col; } row_col_t; /* * terminal limits: * * width : 1 <= width * height : 1 <= height * ncol : 1 <= ncol <= MAX(tlen_t) * nrow : 1 <= nrow <= MAX(int) * saveLines : 0 <= saveLines <= MAX(int) * term_start : 0 <= term_start < saveLines * total_rows : nrow + saveLines * * top_row : -saveLines <= top_row <= 0 * view_start : top_row <= view_start <= 0 * * | most coordinates are stored relative to term_start, * ROW_BUF | which is the first line of the terminal screen * |························= row_buf[0] * |························= row_buf[1] * |························= row_buf[2] etc. * | * +------------+···········= term_start + top_row * | scrollback | * | scrollback +---------+·= term_start + view_start * | scrollback | display | * | scrollback | display | * +------------+·display·+·= term_start * | terminal | display | * | terminal +---------+ * | terminal | * | terminal | * +------------+···········= term_start + nrow - 1 * | * | * END······················= total_rows */ struct TermWin_t { int vt_width; /* actual window width [pixels] */ int vt_height; /* actual window height [pixels] */ int width; /* window width [pixels] */ int height; /* window height [pixels] */ int fwidth; /* font width [pixels] */ int fheight; /* font height [pixels] */ int fbase; /* font ascent (baseline) [pixels] */ int ncol; /* window columns [characters] */ int nrow; /* window rows [characters] */ int focus; /* window has focus */ int mapped; /* window state mapped? */ int int_bwidth; /* internal border width */ int ext_bwidth; /* external border width */ int lineSpace; /* number of extra pixels between rows */ int letterSpace; /* number of extra pixels between columns */ int saveLines; /* number of lines that fit in scrollback */ int total_rows; /* total number of rows in this terminal */ int term_start; /* term lines start here */ int view_start; /* scrollback view starts here */ int top_row; /* topmost row index of scrollback */ Window parent; /* parent identifier */ Window vt; /* vt100 window */ GC gc; /* GC for drawing */ rxvt_drawable *drawable; rxvt_fontset *fontset[4]; }; /* * screen accounting: * screen_t elements * row: Cursor row position : 0 <= row < nrow * col: Cursor column position : 0 <= col < ncol * tscroll: Scrolling region top row inclusive : 0 <= row < nrow * bscroll: Scrolling region bottom row inclusive : 0 <= row < nrow * * selection_t elements * clicks: 1, 2 or 3 clicks - 4 indicates a special condition of 1 where * nothing is selected * beg: row/column of beginning of selection : never past mark * mark: row/column of initial click : never past end * end: row/column of one character past end of selection * * Note: top_row <= beg.row <= mark.row <= end.row < nrow * * Note: col == -1 ==> we're left of screen * */ struct screen_t { row_col_t cur; /* cursor position on the screen */ int tscroll; /* top of settable scroll region */ int bscroll; /* bottom of settable scroll region */ unsigned int charset; /* character set number [0..3] */ unsigned int flags; /* see below */ row_col_t s_cur; /* saved cursor position */ unsigned int s_charset; /* saved character set number [0..3] */ char s_charset_char; rend_t s_rstyle; /* saved rendition style */ }; enum selection_op_t { SELECTION_CLEAR = 0, /* nothing selected */ SELECTION_INIT, /* marked a point */ SELECTION_BEGIN, /* started a selection */ SELECTION_CONT, /* continued selection */ SELECTION_DONE /* selection put in CUT_BUFFER0 */ }; struct selection_t { wchar_t *text; /* selected text */ unsigned int len; /* length of selected text */ unsigned int screen; /* screen being used */ unsigned int clicks; /* number of clicks */ selection_op_t op; /* current operation */ bool rect; /* rectangular selection? */ row_col_t beg; /* beginning of selection <= mark */ row_col_t mark; /* point of initial click <= end */ row_col_t end; /* one character past end point */ wchar_t *clip_text; /* text copied to the clipboard */ unsigned int clip_len; /* length of clipboard text */ }; /* ------------------------------------------------------------------------- */ /* screen_t flags */ #define Screen_Relative (1<<0) /* relative origin mode flag */ #define Screen_VisibleCursor (1<<1) /* cursor visible? */ #define Screen_Autowrap (1<<2) /* auto-wrap flag */ #define Screen_Insert (1<<3) /* insert mode (vs. overstrike) */ #define Screen_WrapNext (1<<4) /* need to wrap for next char? */ #define Screen_DefaultFlags (Screen_VisibleCursor | Screen_Autowrap) /* rxvt_vars.options */ enum { # define def(name) Opt_ ## name, # define nodef(name) Opt_prev_ ## name, Opt_ ## name = 0, Opt_next_ ## name = Opt_prev_ ## name - 1, Opt_0, # include "optinc.h" # undef nodef # undef def Opt_count }; /* ------------------------------------------------------------------------- */ struct rxvt_vars : TermWin_t { scrollBar_t scrollBar; uint8_t options[(Opt_count + 7) >> 3]; XSizeHints szHint; rxvt_color *pix_colors; Cursor TermWin_cursor; /* cursor for vt window */ line_t *row_buf; // all lines, scrollback + terminal, circular line_t *drawn_buf; // text on screen line_t *swap_buf; // lines for swap buffer char *tabs; /* per location: 1 == tab-stop */ screen_t screen; screen_t swap; selection_t selection; rxvt_color pix_colors_focused[TOTAL_COLORS]; #ifdef OFF_FOCUS_FADING rxvt_color pix_colors_unfocused[TOTAL_COLORS]; #endif }; struct rxvt_term : zero_initialized, rxvt_vars, rxvt_screen { // special markers with magic addresses static const char resval_undef []; // options specifically unset static const char resval_on []; // boolean options switched on static const char resval_off []; // or off log_callback *log_hook; // log error messages through this hook, if != 0 getfd_callback *getfd_hook; // convert remote to local fd, if != 0 #if ENABLE_PERL rxvt_perl_term perl; #endif struct mbstate mbstate; // current input multibyte state unsigned char want_refresh:1, current_screen:1, /* primary or secondary */ num_scr_allow:1, bypass_keystate:1, #if ENABLE_FRILLS urgency_hint:1, rewrap_always:1, rewrap_never:1, #endif #if CURSOR_BLINK hidden_cursor:1, #endif #if TEXT_BLINK hidden_text:1, #endif #if POINTER_BLANK hidden_pointer:1, #endif enc_utf8:1, /* whether locale uses utf-8 */ seen_input:1, /* whether we have seen some program output yet */ seen_resize:1, /* whether we had a resize event */ init_done:1, parsed_geometry:1; unsigned char refresh_type, #ifdef META8_OPTION meta_char; /* Alt-key prefix */ #endif /* ---------- */ bool rvideo_state, rvideo_mode; #ifndef NO_BELL bool rvideo_bell; #endif int num_scr; /* screen: number of lines scrolled */ int prev_ncol, /* screen: previous number of columns */ prev_nrow; /* screen: previous number of rows */ /* ---------- */ rend_t rstyle; /* ---------- */ #ifdef SELECTION_SCROLLING int scroll_selection_lines; int selection_save_x, selection_save_y, selection_save_state; #endif /* ---------- */ int csrO, /* Hops - csr offset in thumb/slider to */ /* give proper Scroll behaviour */ #if defined(MOUSE_WHEEL) && defined(MOUSE_SLIP_WHEELING) mouse_slip_wheel_speed, #endif refresh_count, window_vt_x, window_vt_y, mouse_row, mouse_col, # ifdef POINTER_BLANK pointerBlankDelay, # endif multiClickTime, cursor_type, allowedxerror; /* ---------- */ unsigned int ModLevel3Mask, ModMetaMask, ModNumLockMask; unsigned long priv_modes, SavedModes; /* ---------- */ Atom *xa; /* ---------- */ Time selection_time, clipboard_time; rxvt_selection *selection_req; pid_t cmd_pid; /* process id of child */ /* ---------- */ struct mouse_event MEvent; XComposeStatus compose; static struct termios def_tio; row_col_t oldcursor; #ifdef HAVE_IMG enum { BG_IS_TRANSPARENT = 1 << 1, BG_NEEDS_REFRESH = 1 << 2, }; uint8_t bg_flags; rxvt_img *bg_img; #endif #if ENABLE_OVERLAY overlay_base ov; void scr_swap_overlay () noexcept; void scr_overlay_new (int x, int y, int w, int h) noexcept; void scr_overlay_off () noexcept; void scr_overlay_set (int x, int y, text_t text, rend_t rend = OVERLAY_RSTYLE) noexcept; void scr_overlay_set (int x, int y, const char *s) noexcept; void scr_overlay_set (int x, int y, const wchar_t *s) noexcept; #endif vector allocated; // free these memory blocks with free() int parent_x, parent_y; // parent window position relative to root, only updated on demand char *locale; char charsets[4]; char *v_buffer; /* pointer to physical buffer */ unsigned int v_buflen; /* size of area to write */ stringvec *argv, *envv; /* if != 0, will be freed at destroy time */ char **env; #ifdef KEYSYM_RESOURCE keyboard_manager *keyboard; #endif #ifndef NO_RESOURCES XrmDatabase option_db; #endif const char *rs[NUM_RESOURCES]; /* command input buffering */ char *cmdbuf_ptr, *cmdbuf_endp; char cmdbuf_base[CBUFSIZ]; ptytty *pty; // chunk contains all line_t's as well as rend_t and text_t buffers // for drawn_buf, swap_buf and row_buf, in this order void *chunk; size_t chunk_size; uint32_t rgb24_color[RGB24_CUBE_SIZE]; // the 24-bit color value uint16_t rgb24_seqno[RGB24_CUBE_SIZE]; // which one is older? uint16_t rgb24_sequence; static vector termlist; // a vector of all running rxvt_term's #if ENABLE_FRILLS || ISO_14755 // ISO 14755 entry support unicode_t iso14755buf; void commit_iso14755 (); # if ISO_14755 void iso14755_51 (unicode_t ch, rend_t r = DEFAULT_RSTYLE, int x = 0, int y = -1, int y2 = -1); void iso14755_54 (int x, int y); # endif #endif long vt_emask, vt_emask_perl, vt_emask_xim, vt_emask_mouse; void vt_select_input () const noexcept { XSelectInput (dpy, vt, vt_emask | vt_emask_perl | vt_emask_xim | vt_emask_mouse); } #if ENABLE_PERL void rootwin_cb (XEvent &xev); xevent_watcher rootwin_ev; #endif void x_cb (XEvent &xev); xevent_watcher termwin_ev; xevent_watcher vt_ev; xevent_watcher scrollbar_ev; void child_cb (ev::child &w, int revents); ev::child child_ev; void destroy_cb (ev::idle &w, int revents); ev::idle destroy_ev; void refresh_check (); void flush (); void flush_cb (ev::timer &w, int revents); ev::timer flush_ev; void cmdbuf_reify (); void cmdbuf_append (const char *str, size_t count); bool pty_fill (); void pty_cb (ev::io &w, int revents); ev::io pty_ev; #ifdef CURSOR_BLINK void cursor_blink_reset (); void cursor_blink_cb (ev::timer &w, int revents); ev::timer cursor_blink_ev; #endif #ifdef TEXT_BLINK void text_blink_cb (ev::timer &w, int revents); ev::timer text_blink_ev; #endif #ifndef NO_BELL void bell_cb (ev::timer &w, int revents); ev::timer bell_ev; #endif #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING void cont_scroll_cb (ev::timer &w, int revents); ev::timer cont_scroll_ev; #endif #ifdef SELECTION_SCROLLING void sel_scroll_cb (ev::timer &w, int revents); ev::timer sel_scroll_ev; #endif #if defined(MOUSE_WHEEL) && defined(MOUSE_SLIP_WHEELING) void slip_wheel_cb (ev::timer &w, int revents); ev::timer slip_wheel_ev; #endif #ifdef POINTER_BLANK void pointer_cb (ev::timer &w, int revents); ev::timer pointer_ev; void pointer_blank (); #endif void pointer_unblank (); void tt_printf (const char *fmt,...); void tt_write_ (const char *data, unsigned int len); void tt_write (const char *data, unsigned int len); void tt_write_user_input (const char *data, unsigned int len); void pty_write (); void make_current () const // make this the "currently active" urxvt instance { SET_R (this); set_environ (env); rxvt_set_locale (locale); } #if USE_XIM rxvt_xim *input_method; XIC Input_Context; XIMStyle input_style; XPoint spot; // most recently sent spot position void im_destroy (); void im_cb (); im_watcher im_ev; void im_set_size (XRectangle &size); void im_set_position (XPoint &pos) noexcept; void im_set_color (unsigned long &fg, unsigned long &bg); void im_set_preedit_area (XRectangle &preedit_rect, XRectangle &status_rect, const XRectangle &needed_rect); bool im_is_running (); void im_send_spot (); bool im_get_ic (const char *modifiers); void im_set_position (); #endif // command.C void key_press (XKeyEvent &ev); void key_release (XKeyEvent &ev); wchar_t next_char () noexcept; wchar_t cmd_getc (); uint32_t next_octet () noexcept; uint32_t cmd_get8 (); void cmd_parse (); void mouse_report (XButtonEvent &ev); void button_press (XButtonEvent &ev); void button_release (XButtonEvent &ev); void focus_in (); void focus_out (); #if ENABLE_FRILLS void set_urgency (bool enable); #else void set_urgency (bool enable) { } #endif void update_fade_color (unsigned int idx, bool first_time = false); #ifdef PRINTPIPE FILE *popen_printer (); int pclose_printer (FILE *stream); #endif void process_print_pipe (); void process_nonprinting (unicode_t ch); void process_escape_vt52 (unicode_t ch); void process_escape_seq (); void process_csi_seq (); void process_window_ops (const int *args, unsigned int nargs); char *get_to_st (string_term &st); void process_dcs_seq (); void process_osc_seq (); void process_color_seq (int report, int color, const char *str, string_term &st); void process_xterm_seq (int op, char *str, string_term &st); unsigned int map_rgb24_color (unsigned int r, unsigned int g, unsigned int b, unsigned int a); int privcases (int mode, unsigned long bit); void process_terminal_mode (int mode, int priv, unsigned int nargs, const int *arg); void process_sgr_mode (unsigned int nargs, const int *arg); void set_cursor_style (int style); // init.C void init (stringvec *argv, stringvec *envv); void init (int argc, const char *const *argv, const char *const *envv); void init2 (int argc, const char *const *argv); void init_vars (); const char **init_resources (int argc, const char *const *argv); void init_env (); void set_locale (const char *locale); void init_xlocale (); void init_command (const char *const *argv); void run_command (const char *const *argv); int run_child (const char *const *argv); void color_aliases (int idx); void create_windows (int argc, const char *const *argv); void get_colors (); void get_ourmods (); void set_icon (const char *file); // main.C void tt_winch (); rxvt_term (); ~rxvt_term (); void destroy (); void emergency_cleanup (); void recolor_cursor (); void resize_all_windows (unsigned int newwidth, unsigned int newheight, int ignoreparent); void window_calc (unsigned int newwidth, unsigned int newheight); bool set_fonts (); void set_string_property (Atom prop, const char *str, int len = -1); void set_mbstring_property (Atom prop, const char *str, int len = -1); void set_utf8_property (Atom prop, const char *str, int len = -1); void set_title (const char *str); void set_icon_name (const char *str); void set_window_color (int idx, const char *color); char *get_colorfgbg (); bool set_color (rxvt_color &color, const char *name); void alias_color (int dst, int src); void set_widthheight (unsigned int newwidth, unsigned int newheight); void get_window_origin (int &x, int &y); // screen.C bool option (uint8_t opt) const noexcept { return options[opt >> 3] & (1 << (opt & 7)); } void set_option (uint8_t opt, bool set = true) noexcept; int fgcolor_of (rend_t r) const noexcept { int base = GET_BASEFG (r); #ifndef NO_BRIGHTCOLOR if (r & RS_Bold # if ENABLE_STYLES && option (Opt_intensityStyles) # endif && IN_RANGE_EXC (base, minCOLOR, minBrightCOLOR)) base += minBrightCOLOR - minCOLOR; #endif return base; } int bgcolor_of (rend_t r) const noexcept { int base = GET_BASEBG (r); #ifndef NO_BRIGHTCOLOR if (r & RS_Blink # if ENABLE_STYLES && option (Opt_intensityStyles) # endif && IN_RANGE_EXC (base, minCOLOR, minBrightCOLOR)) base += minBrightCOLOR - minCOLOR; #endif return base; } // modifies first argument(!) void tt_paste (char *data, unsigned int len) noexcept; void paste (char *data, unsigned int len) noexcept; void scr_alloc () noexcept; void scr_blank_line (line_t &l, unsigned int col, unsigned int width, rend_t efs) const noexcept; void scr_blank_screen_mem (line_t &l, rend_t efs) const noexcept; void scr_kill_char (line_t &l, int col) const noexcept; void scr_set_char_rend (line_t &l, int col, rend_t rend); int scr_scroll_text (int row1, int row2, int count) noexcept; void copy_line (line_t &dst, line_t &src); void scr_reset (); void scr_release () noexcept; void scr_clear (bool really = false) noexcept; void scr_refresh () noexcept; bool scr_refresh_rend (rend_t mask, rend_t value) noexcept; void scr_erase_screen (int mode) noexcept; #if ENABLE_FRILLS void scr_erase_savelines () noexcept; void scr_backindex () noexcept; void scr_forwardindex () noexcept; #endif void scr_touch (bool refresh) noexcept; void scr_expose (int x, int y, int width, int height, bool refresh) noexcept; void scr_recolor (bool refresh = true) noexcept; void scr_remap_chars () noexcept; void scr_remap_chars (line_t &l) noexcept; enum cursor_mode { SAVE, RESTORE }; void scr_poweron (); void scr_soft_reset () noexcept; void scr_cursor (cursor_mode mode) noexcept; void scr_do_wrap () noexcept; void scr_swap_screen () noexcept; void scr_change_screen (int scrn); void scr_color (unsigned int color, int fgbg) noexcept; void scr_rendition (int set, int style) noexcept; void scr_add_lines (const wchar_t *str, int len, int minlines = 0) noexcept; void scr_backspace () noexcept; void scr_tab (int count, bool ht = false) noexcept; void scr_gotorc (int row, int col, int relative) noexcept; void scr_index (enum page_dirn direction) noexcept; void scr_erase_line (int mode) noexcept; void scr_E () noexcept; void scr_insdel_lines (int count, int insdel) noexcept; void scr_insdel_chars (int count, int insdel) noexcept; void scr_scroll_region (int top, int bot) noexcept; void scr_cursor_visible (int mode) noexcept; void scr_autowrap (int mode) noexcept; void scr_relative_origin (int mode) noexcept; void scr_insert_mode (int mode) noexcept; void scr_set_tab (int mode) noexcept; void scr_rvideo_mode (bool on) noexcept; void scr_report_position () noexcept; void set_font_style () noexcept; void scr_charset_choose (int set) noexcept; void scr_charset_set (int set, unsigned int ch) noexcept; void scr_move_to (int y, int len) noexcept; bool scr_page (int nlines) noexcept; bool scr_page (enum page_dirn direction, int nlines) noexcept { return scr_page (direction * nlines); } bool scr_changeview (int new_view_start) noexcept; void scr_bell () noexcept; void scr_printscreen (int fullhist) noexcept; void scr_xor_rect (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle1, rend_t rstyle2) noexcept; void scr_xor_span (int beg_row, int beg_col, int end_row, int end_col, rend_t rstyle) noexcept; void scr_reverse_selection () noexcept; void scr_dump (int fd) noexcept; void selection_check (int check_more) noexcept; void selection_changed () noexcept; /* sets want_refresh, corrects coordinates */ void selection_request (Time tm, int selnum = Sel_Primary) noexcept; void selection_clear (bool clipboard = false) noexcept; void selection_make (Time tm); bool selection_grab (Time tm, bool clipboard = false) noexcept; void selection_start_colrow (int col, int row) noexcept; void selection_delimit_word (enum page_dirn dirn, const row_col_t *mark, row_col_t *ret) noexcept; void selection_extend_colrow (int32_t col, int32_t row, int button3, int buttonpress, int clickchange) noexcept; void selection_remove_trailing_spaces () noexcept; void selection_send (const XSelectionRequestEvent &rq) noexcept; void selection_click (int clicks, int x, int y) noexcept; void selection_extend (int x, int y, int flag) noexcept; void selection_rotate (int x, int y) noexcept; // xdefaults.C void rxvt_usage (int type); const char **get_options (int argc, const char *const *argv); int parse_keysym (const char *str, unsigned int &state); int bind_action (const char *str, const char *arg); const char *x_resource (const char *name); void extract_resources (); void enumerate_resources (void (*cb)(rxvt_term *, const char *, const char *), const char *name_p = 0, const char *class_p = 0); void enumerate_keysym_resources (void (*cb)(rxvt_term *, const char *, const char *)) { enumerate_resources (cb, "keysym", "Keysym"); } void extract_keysym_resources (); }; #endif /* _RXVT_H_ */