1 #ifndef __VTERM_INTERNAL_H__ 2 #define __VTERM_INTERNAL_H__ 3 4 #include "vterm.h" 5 6 #include <stdarg.h> 7 8 #if defined(__GNUC__) 9 # define INTERNAL __attribute__((visibility("internal"))) 10 #else 11 # define INTERNAL 12 #endif 13 14 #ifdef DEBUG 15 # define DEBUG_LOG(...) fprintf(stderr, __VA_ARGS__) 16 #else 17 # define DEBUG_LOG(...) 18 #endif 19 20 #define ESC_S "\x1b" 21 22 #define INTERMED_MAX 16 23 24 #define CSI_ARGS_MAX 16 25 #define CSI_LEADER_MAX 16 26 27 typedef struct VTermEncoding VTermEncoding; 28 29 typedef struct { 30 VTermEncoding *enc; 31 32 // This size should be increased if required by other stateful encodings 33 char data[4*sizeof(uint32_t)]; 34 } VTermEncodingInstance; 35 36 struct VTermPen 37 { 38 VTermColor fg; 39 VTermColor bg; 40 unsigned int bold:1; 41 unsigned int underline:2; 42 unsigned int italic:1; 43 unsigned int blink:1; 44 unsigned int reverse:1; 45 unsigned int strike:1; 46 unsigned int font:4; /* To store 0-9 */ 47 }; 48 49 struct VTermState 50 { 51 VTerm *vt; 52 53 const VTermStateCallbacks *callbacks; 54 void *cbdata; 55 56 const VTermParserCallbacks *fallbacks; 57 void *fbdata; 58 59 int rows; 60 int cols; 61 62 /* Current cursor position */ 63 VTermPos pos; 64 65 int at_phantom; /* True if we're on the "81st" phantom column to defer a wraparound */ 66 67 int scrollregion_top; 68 int scrollregion_bottom; /* -1 means unbounded */ 69 #define SCROLLREGION_BOTTOM(state) ((state)->scrollregion_bottom > -1 ? (state)->scrollregion_bottom : (state)->rows) 70 int scrollregion_left; 71 #define SCROLLREGION_LEFT(state) ((state)->mode.leftrightmargin ? (state)->scrollregion_left : 0) 72 int scrollregion_right; /* -1 means unbounded */ 73 #define SCROLLREGION_RIGHT(state) ((state)->mode.leftrightmargin && (state)->scrollregion_right > -1 ? (state)->scrollregion_right : (state)->cols) 74 75 /* Bitvector of tab stops */ 76 unsigned char *tabstops; 77 78 VTermLineInfo *lineinfo; 79 #define ROWWIDTH(state,row) ((state)->lineinfo[(row)].doublewidth ? ((state)->cols / 2) : (state)->cols) 80 #define THISROWWIDTH(state) ROWWIDTH(state, (state)->pos.row) 81 82 /* Mouse state */ 83 int mouse_col, mouse_row; 84 int mouse_buttons; 85 int mouse_flags; 86 #define MOUSE_WANT_CLICK 0x01 87 #define MOUSE_WANT_DRAG 0x02 88 #define MOUSE_WANT_MOVE 0x04 89 90 enum { MOUSE_X10, MOUSE_UTF8, MOUSE_SGR, MOUSE_RXVT } mouse_protocol; 91 92 /* Last glyph output, for Unicode recombining purposes */ 93 uint32_t *combine_chars; 94 size_t combine_chars_size; // Number of ELEMENTS in the above 95 int combine_width; // The width of the glyph above 96 VTermPos combine_pos; // Position before movement 97 98 struct { 99 unsigned int keypad:1; 100 unsigned int cursor:1; 101 unsigned int autowrap:1; 102 unsigned int insert:1; 103 unsigned int newline:1; 104 unsigned int cursor_visible:1; 105 unsigned int cursor_blink:1; 106 unsigned int cursor_shape:2; 107 unsigned int alt_screen:1; 108 unsigned int origin:1; 109 unsigned int screen:1; 110 unsigned int leftrightmargin:1; 111 unsigned int bracketpaste:1; 112 unsigned int report_focus:1; 113 } mode; 114 115 VTermEncodingInstance encoding[4], encoding_utf8; 116 int gl_set, gr_set, gsingle_set; 117 118 struct VTermPen pen; 119 120 VTermColor default_fg; 121 VTermColor default_bg; 122 VTermColor colors[16]; // Store the 8 ANSI and the 8 ANSI high-brights only 123 124 int bold_is_highbright; 125 126 unsigned int protected_cell : 1; 127 128 /* Saved state under DEC mode 1048/1049 */ 129 struct { 130 VTermPos pos; 131 struct VTermPen pen; 132 133 struct { 134 unsigned int cursor_visible:1; 135 unsigned int cursor_blink:1; 136 unsigned int cursor_shape:2; 137 } mode; 138 } saved; 139 }; 140 141 typedef enum { 142 VTERM_PARSER_OSC, 143 VTERM_PARSER_DCS, 144 145 VTERM_N_PARSER_TYPES 146 } VTermParserStringType; 147 148 struct VTerm 149 { 150 VTermAllocatorFunctions *allocator; 151 void *allocdata; 152 153 int rows; 154 int cols; 155 156 struct { 157 unsigned int utf8:1; 158 unsigned int ctrl8bit:1; 159 } mode; 160 161 struct { 162 enum VTermParserState { 163 NORMAL, 164 CSI_LEADER, 165 CSI_ARGS, 166 CSI_INTERMED, 167 ESC, 168 /* below here are the "string states" */ 169 STRING, 170 ESC_IN_STRING, 171 } state; 172 173 int intermedlen; 174 char intermed[INTERMED_MAX]; 175 176 int csi_leaderlen; 177 char csi_leader[CSI_LEADER_MAX]; 178 179 int csi_argi; 180 long csi_args[CSI_ARGS_MAX]; 181 182 const VTermParserCallbacks *callbacks; 183 void *cbdata; 184 185 VTermParserStringType stringtype; 186 char *strbuffer; 187 size_t strbuffer_len; 188 size_t strbuffer_cur; 189 } parser; 190 191 /* len == malloc()ed size; cur == number of valid bytes */ 192 193 char *outbuffer; 194 size_t outbuffer_len; 195 size_t outbuffer_cur; 196 197 VTermState *state; 198 VTermScreen *screen; 199 }; 200 201 struct VTermEncoding { 202 void (*init) (VTermEncoding *enc, void *data); 203 void (*decode)(VTermEncoding *enc, void *data, 204 uint32_t cp[], int *cpi, int cplen, 205 const char bytes[], size_t *pos, size_t len); 206 }; 207 208 typedef enum { 209 ENC_UTF8, 210 ENC_SINGLE_94 211 } VTermEncodingType; 212 213 void *vterm_allocator_malloc(VTerm *vt, size_t size); 214 void vterm_allocator_free(VTerm *vt, void *ptr); 215 216 void vterm_push_output_bytes(VTerm *vt, const char *bytes, size_t len); 217 void vterm_push_output_vsprintf(VTerm *vt, const char *format, va_list args); 218 void vterm_push_output_sprintf(VTerm *vt, const char *format, ...); 219 void vterm_push_output_sprintf_ctrl(VTerm *vt, unsigned char ctrl, const char *fmt, ...); 220 void vterm_push_output_sprintf_dcs(VTerm *vt, const char *fmt, ...); 221 222 void vterm_state_free(VTermState *state); 223 224 void vterm_state_newpen(VTermState *state); 225 void vterm_state_resetpen(VTermState *state); 226 void vterm_state_setpen(VTermState *state, const long args[], int argcount); 227 int vterm_state_getpen(VTermState *state, long args[], int argcount); 228 void vterm_state_savepen(VTermState *state, int save); 229 230 enum { 231 C1_SS3 = 0x8f, 232 C1_DCS = 0x90, 233 C1_CSI = 0x9b, 234 C1_ST = 0x9c, 235 }; 236 237 void vterm_state_push_output_sprintf_CSI(VTermState *vts, const char *format, ...); 238 239 void vterm_screen_free(VTermScreen *screen); 240 241 VTermEncoding *vterm_lookup_encoding(VTermEncodingType type, char designation); 242 243 int vterm_unicode_width(uint32_t codepoint); 244 int vterm_unicode_is_combining(uint32_t codepoint); 245 246 #endif 247
