diff options
Diffstat (limited to 'toys/pending/vi.c')
| -rw-r--r-- | toys/pending/vi.c | 203 |
1 files changed, 107 insertions, 96 deletions
diff --git a/toys/pending/vi.c b/toys/pending/vi.c index ab15bfe0..c5c87507 100644 --- a/toys/pending/vi.c +++ b/toys/pending/vi.c @@ -31,20 +31,20 @@ GLOBALS( * * TODO: * BUGS: screen pos adjust does not cover "widelines" - * + * * * REFACTOR: use dllist functions where possible. * draw_page dont draw full page at time if nothing changed... * ex callbacks - * + * * FEATURE: ex: / ? % //atleast easy cases - * vi: x dw d$ d0 + * vi: x dw d$ d0 * vi: yw yy (y0 y$) * vi+ex: gg G //line movements - * ex: r + * ex: r * ex: !external programs * ex: w filename //only writes to same file now - * big file support? + * big file support? */ @@ -75,7 +75,7 @@ static void adjust_screen_buffer(); struct str_line { int alloc_len; - int str_len; + int str_len; char *str_data; }; @@ -90,7 +90,7 @@ struct linelist { struct str_line *il; struct linelist *text; //file loaded into buffer struct linelist *scr_r;//current screen coord 0 row -struct linelist *c_r;//cursor position row +struct linelist *c_r;//cursor position row int modified; void dlist_insert_nomalloc(struct double_list **list, struct double_list *new) @@ -113,9 +113,9 @@ struct double_list *dlist_insert(struct double_list **list, char *data) return new; } -void linelist_unload() +void linelist_unload() { - + } void write_file(char *filename) @@ -133,7 +133,7 @@ void write_file(char *filename) fclose(fp); } -int linelist_load(char *filename) +int linelist_load(char *filename) { struct linelist *lst = c_r;//cursor position or 0 FILE *fp = 0; @@ -141,7 +141,18 @@ int linelist_load(char *filename) filename = (char*)*toys.optargs; fp = fopen(filename, "r"); - if (!fp) return 0; + if (!fp) { + char *line = xzalloc(80); + ssize_t alc = 80; + lst = (struct linelist*)dlist_add((struct double_list**)&lst, + xzalloc(sizeof(struct str_line))); + lst->line->alloc_len = alc; + lst->line->str_len = 0; + lst->line->str_data = line; + text = lst; + dlist_terminate(text->up); + return 1; + } for (;;) { char *line = xzalloc(80); @@ -177,7 +188,7 @@ int linelist_load(char *filename) } //TODO this is overly complicated refactor with lib dllist -int ex_dd(int count) +int ex_dd(int count) { struct linelist *lst = c_r; if (c_r == text && text == scr_r) { @@ -185,7 +196,7 @@ int ex_dd(int count) text->line->str_len = 1; sprintf(text->line->str_data, " "); goto success_exit; - } + } if (text->down) { text = text->down; text->up = 0; @@ -236,7 +247,7 @@ int ex_dw(int count) return 1; } -int ex_deol(int count) +int ex_deol(int count) { return 1; } @@ -253,27 +264,27 @@ int vi_x(int count) l = &c_r->line->str_len; p = &TT.cur_col; if (!(*l)) return 0; - if ((*p) == (*l)-1) { + if ((*p) == (*l)-1) { s[*p] = 0; - if (*p) (*p)--; + if (*p) (*p)--; + (*l)--; + } else { + memmove(s+(*p), s+(*p)+1, (*l)-(*p)); + s[*l] = 0; (*l)--; - } else { - memmove(s+(*p), s+(*p)+1, (*l)-(*p)); - s[*l] = 0; - (*l)--; } count--; - return (count) ? vi_x(count) : 1; + return (count) ? vi_x(count) : 1; } //move commands does not behave correct way yet. //only jump to next space for now. -int vi_movw(int count) +int vi_movw(int count) { if (!c_r) return 0; //could we call moveend first - while (c_r->line->str_data[TT.cur_col] > ' ') + while (c_r->line->str_data[TT.cur_col] > ' ') TT.cur_col++; while (c_r->line->str_data[TT.cur_col] <= ' ') { TT.cur_col++; @@ -283,7 +294,7 @@ int vi_movw(int count) c_r = c_r->down; TT.cur_col = 0; } - } + } count--; if (count>1) return vi_movw(count); @@ -293,7 +304,7 @@ int vi_movw(int count) return 1; } -int vi_movb(int count) +int vi_movb(int count) { if (!c_r) return 0; @@ -308,7 +319,7 @@ int vi_movb(int count) while (c_r->line->str_data[TT.cur_col] <= ' ') { if (TT.cur_col) TT.cur_col--; else goto exit_function; - } + } while (c_r->line->str_data[TT.cur_col] > ' ') { if (TT.cur_col)TT.cur_col--; else goto exit_function; @@ -323,15 +334,15 @@ exit_function: return 1; } -int vi_move(int count) +int vi_move(int count) { if (!c_r) return 0; if (TT.cur_col < c_r->line->str_len) TT.cur_col++; if (c_r->line->str_data[TT.cur_col] <= ' ' || count > 1) - vi_movw(count); //find next word; - while (c_r->line->str_data[TT.cur_col] > ' ') + vi_movw(count); //find next word; + while (c_r->line->str_data[TT.cur_col] > ' ') TT.cur_col++; if (TT.cur_col) TT.cur_col--; @@ -348,11 +359,11 @@ void i_insert() strncpy(t, &s[TT.cur_col], sel); t[sel+1] = 0; if (c_r->line->alloc_len < c_r->line->str_len+il->str_len+5) { - c_r->line->str_data = xrealloc(c_r->line->str_data, + c_r->line->str_data = xrealloc(c_r->line->str_data, c_r->line->alloc_len*2+il->alloc_len*2); c_r->line->alloc_len = c_r->line->alloc_len*2+2*il->alloc_len; - memset(&c_r->line->str_data[c_r->line->str_len], 0, + memset(&c_r->line->str_data[c_r->line->str_len], 0, c_r->line->alloc_len-c_r->line->str_len); s = c_r->line->str_data; @@ -402,7 +413,7 @@ struct vi_cmd_param vi_cmds[7] = {"x", &vi_x}, }; -int run_vi_cmd(char *cmd) +int run_vi_cmd(char *cmd) { int val = 0; char *cmd_e; @@ -441,11 +452,11 @@ int search_str(char *s) TT.cur_col = c-c_r->line->str_data; return 0; } - + int run_ex_cmd(char *cmd) { if (cmd[0] == '/') { - //search pattern + //search pattern if (!search_str(&cmd[1]) ) { check_cursor_bounds(); adjust_screen_buffer(); @@ -532,7 +543,8 @@ void vi_main(void) il->str_len++; break; case 'a': - TT.cur_col++; + if (c_r && c_r->line->str_len) + TT.cur_col++; case 'i': TT.vi_mode = 2; break; @@ -552,7 +564,7 @@ void vi_main(void) vi_buf_pos = 0; } - } + } break; } @@ -649,6 +661,7 @@ static void draw_page() char* line = 0; int bytes = 0; int drawn = 0; + int x = 0; struct linelist *scr_buf= scr_r; //clear screen tty_esc("2J"); @@ -665,12 +678,14 @@ static void draw_page() y++; tty_jump(0, y); } else if (scr_buf && scr_buf->line->str_data && scr_buf->line->str_len) { - if (scr_buf == c_r) + if (scr_buf == c_r) break; line = scr_buf->line->str_data; bytes = scr_buf->line->str_len; scr_buf = scr_buf->down; } else { + if (scr_buf == c_r) + break; y++; tty_jump(0, y); //printf(" \n"); @@ -680,64 +695,59 @@ static void draw_page() } //draw cursor row until cursor //this is to calculate cursor position on screen and possible insert - if (TT.cur_col) { - int x = 0; - line = scr_buf->line->str_data; - bytes = TT.cur_col; + line = scr_buf->line->str_data; + bytes = TT.cur_col; + for (; y < TT.screen_height; ) { + if (bytes) { + x = draw_str_until(&drawn, line, TT.screen_width, bytes); + bytes = drawn ? (bytes-drawn) : 0; + line = bytes ? (line+drawn) : 0; + } + if (!bytes) break; + y++; + tty_jump(0, y); + } + if (TT.vi_mode == 2 && il->str_len) { + line = il->str_data; + bytes = il->str_len; + cx_scr = x; + cy_scr = y; + x = draw_str_until(&drawn, line, TT.screen_width-x, bytes); + bytes = drawn ? (bytes-drawn) : 0; + line = bytes ? (line+drawn) : 0; + cx_scr += x; for (; y < TT.screen_height; ) { if (bytes) { x = draw_str_until(&drawn, line, TT.screen_width, bytes); bytes = drawn ? (bytes-drawn) : 0; line = bytes ? (line+drawn) : 0; + cx_scr = x; } if (!bytes) break; y++; - tty_jump(0, y); - } - if (TT.vi_mode == 2 && il->str_len) { - line = il->str_data; - bytes = il->str_len; - cx_scr = x; - cy_scr = y; - x = draw_str_until(&drawn, line, TT.screen_width-x, bytes); - bytes = drawn ? (bytes-drawn) : 0; - line = bytes ? (line+drawn) : 0; - cx_scr += x; - for (; y < TT.screen_height; ) { - if (bytes) { - x = draw_str_until(&drawn, line, TT.screen_width, bytes); - bytes = drawn ? (bytes-drawn) : 0; - line = bytes ? (line+drawn) : 0; - cx_scr = x; - } - if (!bytes) break; - y++; - cy_scr = y; - tty_jump(0, y); - } - } else { cy_scr = y; - cx_scr = x; + tty_jump(0, y); } - line = scr_buf->line->str_data+TT.cur_col; - bytes = scr_buf->line->str_len-TT.cur_col; - scr_buf = scr_buf->down; - x = draw_str_until(&drawn,line, TT.screen_width-x, bytes); - bytes = drawn ? (bytes-drawn) : 0; - line = bytes ? (line+drawn) : 0; - y++; - tty_jump(0, y); } else { cy_scr = y; - cx_scr = 0; + cx_scr = x; } + line = scr_buf->line->str_data+TT.cur_col; + bytes = scr_buf->line->str_len-TT.cur_col; + scr_buf = scr_buf->down; + x = draw_str_until(&drawn,line, TT.screen_width-x, bytes); + bytes = drawn ? (bytes-drawn) : 0; + line = bytes ? (line+drawn) : 0; + y++; + tty_jump(0, y); + //draw until end for (; y < TT.screen_height; ) { if (line && bytes) { draw_str_until(&drawn, line, TT.screen_width, bytes); bytes = drawn ? (bytes-drawn) : 0; line = bytes ? (line+drawn) : 0; - y++; + y++; tty_jump(0, y); } else if (scr_buf && scr_buf->line->str_data && scr_buf->line->str_len) { line = scr_buf->line->str_data; @@ -754,22 +764,22 @@ static void draw_page() tty_jump(0, TT.screen_height); switch (TT.vi_mode) { case 0: - tty_esc("30;44m"); + tty_esc("30;44m"); printf("COMMAND|"); break; case 1: - tty_esc("30;42m"); + tty_esc("30;42m"); printf("NORMAL|"); break; case 2: - tty_esc("30;41m"); + tty_esc("30;41m"); printf("INSERT|"); break; } //DEBUG - tty_esc("47m"); - tty_esc("30m"); + tty_esc("47m"); + tty_esc("30m"); utf_l = utf8_len(&c_r->line->str_data[TT.cur_col]); if (utf_l) { char t[5] = {0, 0, 0, 0, 0}; @@ -777,10 +787,10 @@ static void draw_page() printf("utf: %d %s", utf_l, t); } printf("| %d, %d\n", cx_scr, cy_scr); //screen coord - + tty_jump(TT.screen_width-12, TT.screen_height); printf("| %d, %d\n", TT.cur_row, TT.cur_col); - tty_esc("37m"); + tty_esc("37m"); tty_esc("40m"); if (!TT.vi_mode) { tty_esc("1m"); @@ -788,17 +798,17 @@ static void draw_page() printf("%s", il->str_data); tty_esc("0m"); } else tty_jump(cx_scr, cy_scr); - + xflush(); } -static void draw_char(char c, int x, int y, int highlight) +static void draw_char(char c, int x, int y, int highlight) { tty_jump(x, y); if (highlight) { tty_esc("30m"); //foreground black - tty_esc("47m"); //background white + tty_esc("47m"); //background white } printf("%c", c); } @@ -814,7 +824,7 @@ static int draw_rune(char *c, int x, int y, int highlight) tty_esc("0m"); if (highlight) { tty_esc("30m"); //foreground black - tty_esc("47m"); //background white + tty_esc("47m"); //background white } strncpy(t, c, 5); printf("%s", t); @@ -832,7 +842,7 @@ static void check_cursor_bounds() } } -static void adjust_screen_buffer() +static void adjust_screen_buffer() { //search cursor and screen TODO move this perhaps struct linelist *t = text; @@ -855,7 +865,7 @@ static void adjust_screen_buffer() else if ( c > s ) { //should count multiline long strings! int distance = c - s + 1; - //TODO instead iterate scr_r up and check strlen%screen_width + //TODO instead iterate scr_r up and check strlen%screen_width //for each iteration if (distance >= (int)TT.screen_height) { int adj = distance - TT.screen_height; @@ -880,9 +890,9 @@ static int utf8_len(char *str) { int len = 0; int i = 0; - uint8_t *c = (uint8_t*)str; - if (!c || !(*c)) return 0; - if (*c < 0x7F) return 1; + uint8_t *c = (uint8_t*)str; + if (!c || !(*c)) return 0; + if (*c < 0x7F) return 1; if ((*c & 0xE0) == 0xc0) len = 2; else if ((*c & 0xF0) == 0xE0 ) len = 3; else if ((*c & 0xF8) == 0xF0 ) len = 4; @@ -931,7 +941,7 @@ static int utf8_width(char *str, int bytes) return 0; } -static int utf8_dec(char key, char *utf8_scratch, int *sta_p) +static int utf8_dec(char key, char *utf8_scratch, int *sta_p) { int len = 0; char *c = utf8_scratch; @@ -942,14 +952,14 @@ static int utf8_dec(char key, char *utf8_scratch, int *sta_p) else if ((*c & 0xF0) == 0xE0 ) len = 3; else if ((*c & 0xF8) == 0xF0 ) len = 4; else {*sta_p = 0; return 0; } - + (*sta_p)++; if (*sta_p == 1) return 0; if ((c[*sta_p-1] & 0xc0) != 0x80) {*sta_p = 0; return 0; } if (*sta_p == len) { c[(*sta_p)] = 0; return 1; } - + return 0; } @@ -963,7 +973,7 @@ static int draw_str_until(int *drawn, char *str, int width, int bytes) for (;width && bytes;) { rune_bytes = utf8_lnw(&rune_width, end, 4); if (!rune_bytes) break; - if (width - rune_width < 0) goto write_bytes; + if (width - rune_width < 0) goto write_bytes; width -= rune_width; bytes -= rune_bytes; end += rune_bytes; @@ -991,6 +1001,7 @@ static void cur_left() static void cur_right() { + if (c_r->line->str_len <= 1) return; if (TT.cur_col == c_r->line->str_len-1) return; TT.cur_col++; if (!utf8_len(&c_r->line->str_data[TT.cur_col])) cur_right(); |