diff options
Diffstat (limited to 'contrib/less/output.c')
| -rw-r--r-- | contrib/less/output.c | 215 |
1 files changed, 100 insertions, 115 deletions
diff --git a/contrib/less/output.c b/contrib/less/output.c index 9c9d4ac..a87670f 100644 --- a/contrib/less/output.c +++ b/contrib/less/output.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 1984-2007 Mark Nudelman + * Copyright (C) 1984-2008 Mark Nudelman * * You may distribute under the terms of either the GNU General Public * License or the Less License, as specified in the README file. @@ -31,7 +31,7 @@ extern int any_display; extern int is_tty; extern int oldbot; -#if MSDOS_COMPILER==BORLANDC || MSDOS_COMPILER==DJGPPC +#if MSDOS_COMPILER==WIN32C || MSDOS_COMPILER==BORLANDC || MSDOS_COMPILER==DJGPPC extern int ctldisp; extern int nm_fg_color, nm_bg_color; extern int bo_fg_color, bo_bg_color; @@ -102,53 +102,7 @@ flush() n = ob - obuf; if (n == 0) return; -#if MSDOS_COMPILER==WIN32C - if (is_tty && any_display) - { - char *op; - DWORD nwritten = 0; - CONSOLE_SCREEN_BUFFER_INFO scr; - int row; - int col; - int olen; - extern HANDLE con_out; - - olen = ob - obuf; - /* - * There is a bug in Win32 WriteConsole() if we're - * writing in the last cell with a different color. - * To avoid color problems in the bottom line, - * we scroll the screen manually, before writing. - */ - GetConsoleScreenBufferInfo(con_out, &scr); - col = scr.dwCursorPosition.X; - row = scr.dwCursorPosition.Y; - for (op = obuf; op < obuf + olen; op++) - { - if (*op == '\n') - { - col = 0; - row++; - } else if (*op == '\r') - { - col = 0; - } else - { - col++; - if (col >= sc_width) - { - col = 0; - row++; - } - } - } - if (row > scr.srWindow.Bottom) - win32_scroll_up(row - scr.srWindow.Bottom); - WriteConsole(con_out, obuf, olen, &nwritten, NULL); - ob = obuf; - return; - } -#else + #if MSDOS_COMPILER==MSOFTC if (is_tty && any_display) { @@ -158,12 +112,12 @@ flush() return; } #else -#if MSDOS_COMPILER==BORLANDC || MSDOS_COMPILER==DJGPPC +#if MSDOS_COMPILER==WIN32C || MSDOS_COMPILER==BORLANDC || MSDOS_COMPILER==DJGPPC if (is_tty && any_display) { *ob = '\0'; if (ctldisp != OPT_ONPLUS) - cputs(obuf); + WIN32textout(obuf, ob - obuf); else { /* @@ -173,64 +127,70 @@ flush() * the -D command-line option. */ char *anchor, *p, *p_next; - int buflen = ob - obuf; - unsigned char fg, bg, norm_attr; - /* - * Only dark colors mentioned here, so that - * bold has visible effect. - */ + unsigned char fg, bg; + static unsigned char at; +#if MSDOS_COMPILER==WIN32C + /* Screen colors used by 3x and 4x SGR commands. */ + static unsigned char screen_color[] = { + 0, /* BLACK */ + FOREGROUND_RED, + FOREGROUND_GREEN, + FOREGROUND_RED|FOREGROUND_GREEN, + FOREGROUND_BLUE, + FOREGROUND_BLUE|FOREGROUND_RED, + FOREGROUND_BLUE|FOREGROUND_GREEN, + FOREGROUND_BLUE|FOREGROUND_GREEN|FOREGROUND_RED + }; +#else static enum COLORS screen_color[] = { BLACK, RED, GREEN, BROWN, BLUE, MAGENTA, CYAN, LIGHTGRAY }; +#endif - /* Normal text colors are used as baseline. */ - bg = nm_bg_color & 0xf; - fg = nm_fg_color & 0xf; - norm_attr = (bg << 4) | fg; for (anchor = p_next = obuf; - (p_next = memchr (p_next, ESC, - buflen - (p_next - obuf))) - != NULL; ) + (p_next = memchr(p_next, ESC, ob - p_next)) != NULL; ) { p = p_next; - - /* - * Handle the null escape sequence - * (ESC-[m), which is used to restore - * the original color. - */ - if (p[1] == '[' && is_ansi_end(p[2])) - { - textattr(norm_attr); - p += 3; - anchor = p_next = p; - continue; - } - - if (p[1] == '[') /* "Esc-[" sequence */ + if (p[1] == '[') /* "ESC-[" sequence */ { - /* - * If some chars seen since - * the last escape sequence, - * write it out to the screen - * using current text attributes. - */ if (p > anchor) { - *p = '\0'; - cputs (anchor); - *p = ESC; + /* + * If some chars seen since + * the last escape sequence, + * write them out to the screen. + */ + WIN32textout(anchor, p-anchor); anchor = p; } - p += 2; + p += 2; /* Skip the "ESC-[" */ + if (is_ansi_end(*p)) + { + /* + * Handle null escape sequence + * "ESC[m", which restores + * the normal color. + */ + p++; + anchor = p_next = p; + WIN32setcolors(nm_fg_color, nm_bg_color); + continue; + } p_next = p; + + /* + * Select foreground/background colors + * based on the escape sequence. + */ + fg = nm_fg_color; + bg = nm_bg_color; while (!is_ansi_end(*p)) { char *q; long code = strtol(p, &q, 10); - if (!*q) + if (*q == '\0') { /* * Incomplete sequence. @@ -238,15 +198,15 @@ flush() * in the buffer. */ int slop = q - anchor; + /* {{ strcpy args overlap! }} */ strcpy(obuf, anchor); ob = &obuf[slop]; return; } - if (q == p - || code > 49 || code < 0 - || (!is_ansi_end(*q) - && *q != ';')) + if (q == p || + code > 49 || code < 0 || + (!is_ansi_end(*q) && *q != ';')) { p_next = q; break; @@ -256,27 +216,38 @@ flush() switch (code) { + default: + /* case 0: all attrs off */ + fg = nm_fg_color; + bg = nm_bg_color; + at = 0; + break; case 1: /* bold on */ - fg = bo_fg_color; - bg = bo_bg_color; + at |= 1; break; case 3: /* italic on */ - fg = so_fg_color; - bg = so_bg_color; + case 7: /* inverse on */ + at |= 2; break; case 4: /* underline on */ - fg = ul_fg_color; - bg = ul_bg_color; + at |= 4; + break; + case 5: /* slow blink on */ + case 6: /* fast blink on */ + at |= 8; break; case 8: /* concealed on */ fg = (bg & 7) | 8; break; - case 0: /* all attrs off */ - case 22:/* bold off */ - case 23:/* italic off */ - case 24:/* underline off */ - fg = nm_fg_color; - bg = nm_bg_color; + case 22: /* bold off */ + at &= ~1; + break; + case 23: /* italic off */ + case 27: /* inverse off */ + at &= ~2; + break; + case 24: /* underline off */ + at &= ~4; break; case 30: case 31: case 32: case 33: case 34: case 35: @@ -297,27 +268,41 @@ flush() } p = q; } - if (is_ansi_end(*p) && p > p_next) - { - bg &= 15; - fg &= 15; - textattr ((bg << 4)| fg); - p_next = anchor = p + 1; - } else + if (!is_ansi_end(*p) || p == p_next) break; + if (at & 1) + { + fg = bo_fg_color; + bg = bo_bg_color; + } else if (at & 2) + { + fg = so_fg_color; + bg = so_bg_color; + } else if (at & 4) + { + fg = ul_fg_color; + bg = ul_bg_color; + } else if (at & 8) + { + fg = bl_fg_color; + bg = bl_bg_color; + } + fg &= 0xf; + bg &= 0xf; + WIN32setcolors(fg, bg); + p_next = anchor = p + 1; } else p_next++; } /* Output what's left in the buffer. */ - cputs (anchor); + WIN32textout(anchor, ob - anchor); } ob = obuf; return; } #endif #endif -#endif fd = (any_display) ? 1 : 2; if (write(fd, obuf, n) != n) screen_trashed = 1; |
