diff options
Diffstat (limited to 'src/libs/3rdparty/libvterm/src/vterm_internal.h')
-rw-r--r-- | src/libs/3rdparty/libvterm/src/vterm_internal.h | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/src/libs/3rdparty/libvterm/src/vterm_internal.h b/src/libs/3rdparty/libvterm/src/vterm_internal.h new file mode 100644 index 0000000000..5d934aff07 --- /dev/null +++ b/src/libs/3rdparty/libvterm/src/vterm_internal.h @@ -0,0 +1,297 @@ +#ifndef __VTERM_INTERNAL_H__ +#define __VTERM_INTERNAL_H__ + +#include "vterm.h" + +#include <stdarg.h> + +#if defined(__GNUC__) +# define INTERNAL __attribute__((visibility("internal"))) +#else +# define INTERNAL +#endif + +#ifdef DEBUG +# define DEBUG_LOG(...) fprintf(stderr, __VA_ARGS__) +#else +# define DEBUG_LOG(...) +#endif + +#define ESC_S "\x1b" + +#define INTERMED_MAX 16 + +#define CSI_ARGS_MAX 16 +#define CSI_LEADER_MAX 16 + +#define BUFIDX_PRIMARY 0 +#define BUFIDX_ALTSCREEN 1 + +typedef struct VTermEncoding VTermEncoding; + +typedef struct { + VTermEncoding *enc; + + // This size should be increased if required by other stateful encodings + char data[4*sizeof(uint32_t)]; +} VTermEncodingInstance; + +struct VTermPen +{ + VTermColor fg; + VTermColor bg; + unsigned int bold:1; + unsigned int underline:3; + unsigned int italic:1; + unsigned int blink:1; + unsigned int reverse:1; + unsigned int conceal:1; + unsigned int strike:1; + unsigned int font:4; /* To store 0-9 */ + unsigned int small:1; + unsigned int baseline:2; +}; + +struct VTermState +{ + VTerm *vt; + + const VTermStateCallbacks *callbacks; + void *cbdata; + + const VTermStateFallbacks *fallbacks; + void *fbdata; + + int rows; + int cols; + + /* Current cursor position */ + VTermPos pos; + + int at_phantom; /* True if we're on the "81st" phantom column to defer a wraparound */ + + int scrollregion_top; + int scrollregion_bottom; /* -1 means unbounded */ +#define SCROLLREGION_BOTTOM(state) ((state)->scrollregion_bottom > -1 ? (state)->scrollregion_bottom : (state)->rows) + int scrollregion_left; +#define SCROLLREGION_LEFT(state) ((state)->mode.leftrightmargin ? (state)->scrollregion_left : 0) + int scrollregion_right; /* -1 means unbounded */ +#define SCROLLREGION_RIGHT(state) ((state)->mode.leftrightmargin && (state)->scrollregion_right > -1 ? (state)->scrollregion_right : (state)->cols) + + /* Bitvector of tab stops */ + unsigned char *tabstops; + + /* Primary and Altscreen; lineinfos[1] is lazily allocated as needed */ + VTermLineInfo *lineinfos[2]; + + /* lineinfo will == lineinfos[0] or lineinfos[1], depending on altscreen */ + VTermLineInfo *lineinfo; +#define ROWWIDTH(state,row) ((state)->lineinfo[(row)].doublewidth ? ((state)->cols / 2) : (state)->cols) +#define THISROWWIDTH(state) ROWWIDTH(state, (state)->pos.row) + + /* Mouse state */ + int mouse_col, mouse_row; + int mouse_buttons; + int mouse_flags; +#define MOUSE_WANT_CLICK 0x01 +#define MOUSE_WANT_DRAG 0x02 +#define MOUSE_WANT_MOVE 0x04 + + enum { MOUSE_X10, MOUSE_UTF8, MOUSE_SGR, MOUSE_RXVT } mouse_protocol; + + /* Last glyph output, for Unicode recombining purposes */ + uint32_t *combine_chars; + size_t combine_chars_size; // Number of ELEMENTS in the above + int combine_width; // The width of the glyph above + VTermPos combine_pos; // Position before movement + + struct { + unsigned int keypad:1; + unsigned int cursor:1; + unsigned int autowrap:1; + unsigned int insert:1; + unsigned int newline:1; + unsigned int cursor_visible:1; + unsigned int cursor_blink:1; + unsigned int cursor_shape:2; + unsigned int alt_screen:1; + unsigned int origin:1; + unsigned int screen:1; + unsigned int leftrightmargin:1; + unsigned int bracketpaste:1; + unsigned int report_focus:1; + } mode; + + VTermEncodingInstance encoding[4], encoding_utf8; + int gl_set, gr_set, gsingle_set; + + struct VTermPen pen; + + VTermColor default_fg; + VTermColor default_bg; + VTermColor colors[16]; // Store the 8 ANSI and the 8 ANSI high-brights only + + int bold_is_highbright; + + unsigned int protected_cell : 1; + + /* Saved state under DEC mode 1048/1049 */ + struct { + VTermPos pos; + struct VTermPen pen; + + struct { + unsigned int cursor_visible:1; + unsigned int cursor_blink:1; + unsigned int cursor_shape:2; + } mode; + } saved; + + /* Temporary state for DECRQSS parsing */ + union { + char decrqss[4]; + struct { + uint16_t mask; + enum { + SELECTION_INITIAL, + SELECTION_SELECTED, + SELECTION_QUERY, + SELECTION_SET_INITIAL, + SELECTION_SET, + SELECTION_INVALID, + } state : 8; + uint32_t recvpartial; + uint32_t sendpartial; + } selection; + } tmp; + + struct { + const VTermSelectionCallbacks *callbacks; + void *user; + char *buffer; + size_t buflen; + } selection; +}; + +struct VTerm +{ + const VTermAllocatorFunctions *allocator; + void *allocdata; + + int rows; + int cols; + + struct { + unsigned int utf8:1; + unsigned int ctrl8bit:1; + } mode; + + struct { + enum VTermParserState { + NORMAL, + CSI_LEADER, + CSI_ARGS, + CSI_INTERMED, + DCS_COMMAND, + /* below here are the "string states" */ + OSC_COMMAND, + OSC, + DCS, + APC, + PM, + SOS, + } state; + + bool in_esc : 1; + + int intermedlen; + char intermed[INTERMED_MAX]; + + union { + struct { + int leaderlen; + char leader[CSI_LEADER_MAX]; + + int argi; + long args[CSI_ARGS_MAX]; + } csi; + struct { + int command; + } osc; + struct { + int commandlen; + char command[CSI_LEADER_MAX]; + } dcs; + } v; + + const VTermParserCallbacks *callbacks; + void *cbdata; + + bool string_initial; + + bool emit_nul; + } parser; + + /* len == malloc()ed size; cur == number of valid bytes */ + + VTermOutputCallback *outfunc; + void *outdata; + + char *outbuffer; + size_t outbuffer_len; + size_t outbuffer_cur; + + char *tmpbuffer; + size_t tmpbuffer_len; + + VTermState *state; + VTermScreen *screen; +}; + +struct VTermEncoding { + void (*init) (VTermEncoding *enc, void *data); + void (*decode)(VTermEncoding *enc, void *data, + uint32_t cp[], int *cpi, int cplen, + const char bytes[], size_t *pos, size_t len); +}; + +typedef enum { + ENC_UTF8, + ENC_SINGLE_94 +} VTermEncodingType; + +void *vterm_allocator_malloc(VTerm *vt, size_t size); +void vterm_allocator_free(VTerm *vt, void *ptr); + +void vterm_push_output_bytes(VTerm *vt, const char *bytes, size_t len); +void vterm_push_output_vsprintf(VTerm *vt, const char *format, va_list args); +void vterm_push_output_sprintf(VTerm *vt, const char *format, ...); +void vterm_push_output_sprintf_ctrl(VTerm *vt, unsigned char ctrl, const char *fmt, ...); +void vterm_push_output_sprintf_str(VTerm *vt, unsigned char ctrl, bool term, const char *fmt, ...); + +void vterm_state_free(VTermState *state); + +void vterm_state_newpen(VTermState *state); +void vterm_state_resetpen(VTermState *state); +void vterm_state_setpen(VTermState *state, const long args[], int argcount); +int vterm_state_getpen(VTermState *state, long args[], int argcount); +void vterm_state_savepen(VTermState *state, int save); + +enum { + C1_SS3 = 0x8f, + C1_DCS = 0x90, + C1_CSI = 0x9b, + C1_ST = 0x9c, + C1_OSC = 0x9d, +}; + +void vterm_state_push_output_sprintf_CSI(VTermState *vts, const char *format, ...); + +void vterm_screen_free(VTermScreen *screen); + +VTermEncoding *vterm_lookup_encoding(VTermEncodingType type, char designation); + +int vterm_unicode_width(uint32_t codepoint); +int vterm_unicode_is_combining(uint32_t codepoint); + +#endif |