Mercurial > vim
view src/os_riscos.c @ 2250:1bac28a53fae vim73
Add the conceal patch from Vince Negri.
author | Bram Moolenaar <bram@vim.org> |
---|---|
date | Sat, 05 Jun 2010 23:22:07 +0200 |
parents | 85a99ba3eb5a |
children |
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/* vi:set ts=8 sts=4 sw=4: * * VIM - Vi IMproved by Bram Moolenaar * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. * See README.txt for an overview of the Vim source code. */ #include "vim.h" /* * os_riscos.c * * Thomas Leonard <tal197@ecs.soton.ac.uk> */ const char *__dynamic_da_name = "Vim heap"; /* Enable and name our dynamic area */ int ro_line_mode = TRUE; /* For Ex mode we much echo chars to the screen ourselves */ int windowed; /* Flag - are we running inside a text window? */ int WinLeft, WinTop; /* We might be started inside a text window */ int ScrollTop; /* Make cursor movements relative to ScrollTop. */ int old_escape_state = -1; int old_cursor_state = -1; #define rgb(r,g,b) ((b<<24) + (g<<16) + (r<<8)) #define NORMAL_FG 0x00000000 #define NORMAL_BG 0xffffffff /* Convert a DOS colour number to an RGB palette entry. * Mappings from X11 rgb/txt file. */ static int map_colour(dos) int dos; /* Standard DOS colour number. */ { switch (dos) { case 0: return 0; /* Black */ case 1: return rgb(0,0,139); /* DarkBlue */ case 2: return rgb(0,100,0); /* DarkGreen */ case 3: return rgb(0,139,139); /* DarkCyan */ case 4: return rgb(139,0,0); /* DarkRed */ case 5: return rgb(139,0,139); /* DarkMagenta */ case 6: return rgb(165,42,42); /* Brown, DarkYellow */ case 7: return rgb(211,211,211); /* LightGray, LightGrey, Gray, Grey */ case 8: return rgb(169,169,169); /* DarkGray, DarkGrey */ case 9: return rgb(173,216,230); /* Blue, LightBlue */ case 10: return rgb(144,238,144); /* Green, LightGreen */ case 11: return rgb(224,255,255); /* Cyan, LightCyan */ case 12: return rgb(255,0,0); /* Red, LightRed */ case 13: return rgb(255,0,255); /* Magenta, LightMagenta */ case 14: return rgb(255,255,0); /* Yellow, LightYellow */ case 15: return rgb(255,255,255); /* White */ } return rgb(100,100,100); } static void text_fg(fg) int fg; /* Foregound colour in the form &BBGGRR00 */ { xswi(ColourTrans_SetTextColour, fg, 0, 0, 0); } static void text_bg(bg) int bg; /* Backgound colour in the form &BBGGRR00 */ { xswi(ColourTrans_SetTextColour, bg, 0, 0, 1 << 7); } #define OUT_NORMAL 0 #define OUT_NUMBER 1 /* Reading in a number */ void mch_write(s, len) char_u *s; int len; { static int mode = OUT_NORMAL; static int x, y; /* For reading numbers in. */ if (!term_console) { /* Maybe we are running Vim remotely - don't interpret chars */ while (len--) { char_u c = *s++; swi(OS_WriteC, c); /* We might need to send a CR too. This shouldn't * hurt if we don't need it, should it? */ if (c == 10) swi(OS_WriteI + 13); } return; } while (len--) { char_u c = *s++; switch (mode) { case OUT_NUMBER: if (c < '0' || c > '9') { mode = OUT_NORMAL; } else { x = (x * 10) + c - '0'; continue; } /* note: no break here! */ case OUT_NORMAL: switch (c) { case 1: /* Number (in decimal) follows. */ mode = OUT_NUMBER; y = x; x = 0; break; case 2: /* Position cursor. */ swi(OS_WriteI + 31); swi(OS_WriteC, x); swi(OS_WriteC, y - ScrollTop); break; case 3: /* Set scroll region. */ if (x == Rows -1 && y == 0 && !windowed) { /* Whole screen - remove text window. * This is MUCH faster. */ swi(OS_WriteI + 26); } else { /* Create a text window. */ swi(OS_WriteI + 28); swi(OS_WriteC, WinLeft); swi(OS_WriteC, WinTop + x); swi(OS_WriteC, WinLeft + Columns - 1); swi(OS_WriteC, WinTop + y); } ScrollTop = y; break; case 4: /* Normal mode. */ text_fg(NORMAL_FG); text_bg(NORMAL_BG); break; case 5: /* Reverse mode. */ text_fg(NORMAL_BG); text_bg(NORMAL_FG); break; case 10: swi(OS_NewLine); break; case 14: /* Cursor invisible. */ swi(OS_WriteN, "\027\001\000\000\000\000\000\000\000\000", 10); break; case 15: /* Cursor visible. */ swi(OS_WriteN, "\027\001\002\000\000\000\000\000\000\000", 10); break; case 16: /* Cursor very visible (flash) */ swi(OS_WriteN, "\027\001\003\000\000\000\000\000\000\000", 10); case 17: /* Set foreground colour. */ text_fg(map_colour(x)); break; case 18: /* Set background colour. */ text_bg(map_colour(x)); break; case 19: /* Scroll text down. */ swi(OS_WriteN, "\027\007\000\002\000\000\000\000\000\000", 10); break; default: swi(OS_WriteC, c); } continue; default: printf("[output error]"); mode = OUT_NORMAL; } } } /* * mch_inchar(): low level input funcion. * Get a characters from the keyboard. * Return the number of characters that are available. * If wtime == 0 do not wait for characters. * If wtime == n wait n msecs for characters. * If wtime == -1 wait forever for characters. * * TODO: call convert_input() for 'fileencoding' to 'encoding' conversion. */ int mch_inchar(buf, maxlen, wtime, tb_change_cnt) char_u *buf; int maxlen; long wtime; int tb_change_cnt; { int got=0; unsigned int start_time = clock(); if (ro_line_mode) { /* We're probably in Ex mode - get whole lines at a time. */ static char_u line_buffer[256]; static int remaining_chars = 0; static int buf_pos = 0; /* Do we need to fetch another line? */ if (remaining_chars == 0) { int old_esc_state; swi(OS_Byte, 200, 1, 0xfe); old_esc_state = r1; buf_pos = 0; if (xswi(OS_ReadLine, line_buffer, 255, 0, 255) & (c_flag | v_flag)) { got_int = TRUE; /* ESC pressed */ r1 = 0; } line_buffer[r1] = 13; remaining_chars = r1 + 1; /* Count CR as part of input */ swi(OS_Byte, 200, old_esc_state, 0); } /* Can we send the rest of the buffer back in one go? */ if (remaining_chars <= maxlen) { int got = remaining_chars; memcpy(buf, line_buffer + buf_pos, got); remaining_chars = 0; return got; } /* Send as much as we can */ memcpy(buf, line_buffer + buf_pos, maxlen); buf_pos += maxlen; remaining_chars -= maxlen; return maxlen; } if (!term_console) { /* Use OS_ReadC for all input. * Avoids problems with remote access getting interference from * the keyboard. */ if (wtime == 0) return 0; /* Ignore quick key checks */ if (xswi(OS_ReadC) & c_flag) { got_int = TRUE; /* ESC pressed - can this happen? */ swi(OS_Byte, 124); /* Clear Escape state */ r0 = 0x1b; /* It *might* not have been Escape! */ } buf[0] = r0; return 1; } /* * OK, here's the plan: * * 1) Wait until wtime expires or we get a key * 2) Get keys until the keyboard buffer is empty or buf is full */ while (xswi(OS_Byte,145,0) & c_flag) { /* Nothing at all in the keyboard buffer. * Has our time expired yet? */ if ( (wtime != -1) && (clock() - start_time) >= wtime ) return 0; /* Nothing read - giving up */ } /* We've got one char (in r2) - are there any more? */ while (got < maxlen) { buf[got++] = r2; if (xswi(OS_Byte,145,0) & c_flag) return got; /* Keyboard buffer empty */ } return got; /* buf is full */ } /* * return non-zero if a character is available */ int mch_char_avail() { if (!term_console) return 0; /* Can't tell */ if (xswi(OS_Byte, 152, 0) & c_flag) return 0; return 1; } /* Find out how much free memory we have. * I don't know how to work this out exactly but, since we can claim * more memory from the OS, let's just report the free pool size. * Dynamic area 6 doesn't exist pre 3.6 according to StrongHelp, so * we'll use Wimp_SlotSize. If that fails (outside the desktop?) * then just return a big number and hope. */ long_u mch_avail_mem(special) int special; { if (xswi(Wimp_SlotSize, -1, -1) & v_flag) return 0x7fffffff; return r2; } void mch_delay(msec, ignoreinput) long msec; int ignoreinput; { int start_time, time_now; int csec = msec / 10; swi(OS_ReadMonotonicTime); start_time = r0; for (;;) { swi(OS_ReadMonotonicTime); time_now = r0; if (time_now - start_time > csec) return; #ifdef FEAT_GUI /* In the GUI, allow other programs to run while waiting. */ if (gui.in_use) gui_mch_wait_for_chars(start_time + csec); #endif } } /* * If the machine has job control, use it to suspend the program, * otherwise fake it by starting a new shell. */ void mch_suspend() { suspend_shell(); } void mch_init() { /* * Read window size first. Calls to mch_get_shellsize() will * simply return these values in future so that setting the * text window (used for scrolling) won't give strange results. */ int buf[7] = {132, 135, 256, 257, 1, 2, -1}; /* Command windows are no longer forced open, since if we are * in the desktop then we'll use the GUI version. * Opening a command window here messes up the GUI version startup */ #ifndef FEAT_GUI swi(OS_WriteI); #endif swi(OS_ReadVduVariables, buf, buf); WinLeft = buf[0]; WinTop = buf[1]; Columns = buf[2]; Rows = buf[3] + 1; /* Seems to be one off (VduVars wrong?) */ ScrollTop = 0; /* Are we running in a textwindow? */ if (Rows == buf[5] + 1 && Columns == buf[4] + 1) windowed = 0; else windowed = 1; /* Choose a nice colour scheme. */ text_fg(NORMAL_FG); text_bg(NORMAL_BG); } /* * Check_win checks whether we have an interactive stdout. */ /* ARGSUSED */ int mch_check_win(argc, argv) int argc; char **argv; { return OK; } /* * Return TRUE if the input comes from a terminal, FALSE otherwise. */ int mch_input_isatty() { if (xswi(OS_ChangeRedirection, -1, -1) & v_flag) return TRUE; /* Error - TRUE is probably correct though */ if (r0 == 0) return TRUE; return FALSE; } #ifdef FEAT_TITLE int mch_can_restore_title() { return FALSE; } int mch_can_restore_icon() { return FALSE; } /* * Set the window title and icon. */ void mch_settitle(title, icon) char_u *title; char_u *icon; { if (title == NULL) title = (char_u *) "<untitled>"; #ifdef FEAT_GUI if (gui.in_use && strcmp(title, gui.window_title)) { int length; length = strlen(title); if (length >= gui.window_title_size) length = gui.window_title_size - 1; strncpy(gui.window_title, title, length); gui.window_title[length] = 0; ro_redraw_title(gui.window_handle); } #endif return; } /* * Restore the window/icon title. * "which" is one of: * 1 only restore title * 2 only restore icon * 3 restore title and icon */ void mch_restore_title(which) int which; { return; } #endif /* * Insert user name in s[len]. * Return OK if a name found. */ int mch_get_user_name(s, len) char_u *s; int len; { /* RISC OS doesn't support user names. */ *s = NUL; return FAIL; } /* * Insert host name in s[len]. */ void mch_get_host_name(s, len) char_u *s; int len; { if (xswi(OS_ReadVarVal, "Machine$Name", s, len, 0, 3) & v_flag) { /* Variable does not exist (normal operation) */ vim_strncpy(s, "(unknown)", len - 1); } } /* * return process ID */ long mch_get_pid() { if (xswi(Wimp_ReadSysInfo, 5) & v_flag) return 0; return r0; } /* * Get name of current directory into buffer 'buf' of length 'len' bytes. * Return OK for success, FAIL for failure. */ int mch_dirname(buf, len) char_u *buf; int len; { if (xswi(OS_FSControl, 37, "@", buf, 0, 0, len) & v_flag) return FAIL; return OK; } /* * Get absolute file name into buffer 'buf' of length 'len' bytes. * * return FAIL for failure, OK for success */ int mch_FullName(fname, buf, len, force) char_u *fname, *buf; int len; int force; /* Also expand when already absolute path name. * Not used under RISC OS. */ { if (xswi(OS_FSControl, 37, fname, buf, 0, 0, len) & v_flag) return FAIL; return OK; } /* * Return TRUE if "fname" does not depend on the current directory. */ int mch_isFullName(fname) char_u *fname; { if (strstr(fname, "::") && strstr(fname,".$.")) return TRUE; return FALSE; } /* * Get file permissions for 'name'. * Returns -1 when it doesn't exist. */ long mch_getperm(name) char_u *name; { struct stat statb; if (stat((char *)name, &statb)) return -1; return statb.st_mode; } /* * set file permission for 'name' to 'perm' * * return FAIL for failure, OK otherwise */ int mch_setperm(name, perm) char_u *name; long perm; { return (chmod((char *)name, (mode_t)perm) == 0 ? OK : FAIL); } /* * Set hidden flag for "name". */ /* ARGSUSED */ void mch_hide(name) char_u *name; { /* can't hide a file */ } /* * return TRUE if "name" is a directory * return FALSE if "name" is not a directory * return FALSE for error */ int mch_isdir(name) char_u *name; { if (xswi(OS_File, 17, name) & v_flag) return FALSE; if (r0 == 2 || r0 == 3) return TRUE; /* Count image files as directories. */ return FALSE; } /* * Return 1 if "name" can be executed, 0 if not. * Return -1 if unknown. Requires which to work. */ int mch_can_exe(name) char_u *name; { char_u *buf; char_u *p; int retval; buf = alloc((unsigned)STRLEN(name) + 7); if (buf == NULL) return -1; sprintf((char *)buf, "which %s", name); p = get_cmd_output(buf, NULL, SHELL_SILENT); vim_free(buf); if (p == NULL) return -1; /* result can be: "name: Command not found" */ retval = (*p != NUL && strstr((char *)p, "not found") == NULL); vim_free(p); return retval; } /* * Check what "name" is: * NODE_NORMAL: file or directory (or doesn't exist) * NODE_WRITABLE: writable device, socket, fifo, etc. * NODE_OTHER: non-writable things */ int mch_nodetype(name) char_u *name; { /* TODO */ return NODE_NORMAL; } void mch_early_init() { /* Turn off all the horrible filename munging in UnixLib. */ int __riscosify_control = __RISCOSIFY_NO_PROCESS; } void mch_exit(r) int r; { settmode(TMODE_COOK); exiting = TRUE; out_flush(); ml_close_all(TRUE); /* remove all memfiles */ #ifdef FEAT_GUI if (gui.in_use) gui_exit(r); #endif swi(OS_NewLine); if (old_escape_state != -1) swi(OS_Byte, 229, old_escape_state, 0); if (old_cursor_state != -1) swi(OS_Byte, 4, old_cursor_state); exit(r); } void mch_settmode(tmode) int tmode; /* TMODE_RAW or TMODE_COOK */ { if (tmode == TMODE_COOK) { ro_line_mode = TRUE; return; } ro_line_mode = FALSE; if (term_console) { /* Block cursor. */ swi(OS_WriteN, "\027\000\012\000\000\000\000\000\000\000", 10); /* Disable the standard cursor key actions. */ swi(OS_Byte, 4, 1); if (old_cursor_state == -1) old_cursor_state = r1; } /* Stop Escape from quitting Vim! */ swi(OS_Byte, 229, 1, 0); if (old_escape_state == -1) old_escape_state = r1; } /* * set mouse clicks on or off (only works for xterms) */ void mch_setmouse(on) int on; { } /* * set screen mode, always fails. */ /* ARGSUSED */ int mch_screenmode(arg) char_u *arg; { EMSG(_(e_screenmode)); return FAIL; } /* * Try to get the current window size. * Return OK when size could be determined, FAIL otherwise. * Simply return results stored by mch_init() if we are the * machine's console. If not, we don't know how big the screen is. */ int mch_get_shellsize() { /* if size changed: screenalloc will allocate new screen buffers */ return term_console ? OK : FAIL; } /* * Can't change the size. * Assume the user knows what he's doing and use the new values. */ void mch_set_shellsize() { /* Assume the user knows what he's doing and use the new values. */ } /* * Rows and/or Columns has changed. */ void mch_new_shellsize() { /* Nothing to do. */ } int mch_call_shell(cmd, options) char_u *cmd; int options; /* SHELL_*, see vim.h */ { int retval; int tmode = cur_tmode; if (cmd == NULL) cmd = (char_u *) "GOS"; #ifdef FEAT_GUI if (gui.in_use) return gui_mch_call_shell(cmd, options); #endif if (options & SHELL_COOKED) settmode(TMODE_COOK); /* set to normal mode */ MSG_PUTS("\n"); /* I don't even want to think about what UnixLib must * be doing to allow this to work... */ retval = system(cmd); if (retval && !(options & SHELL_SILENT)) EMSG(strerror(EOPSYS)); /* Doesn't seem to set errno? */ swi(OS_Byte, 229, 1, 0); /* Re-disable escape */ if (tmode == TMODE_RAW) settmode(TMODE_RAW); /* set to raw mode */ return retval ? FAIL : OK; } /* * Check for Escape being pressed right now. * [ different if !term_console? ] */ void mch_breakcheck() { if (xswi(OS_Byte, 121, 0xf0) & v_flag) return; if (r1 == 0xff) { got_int = TRUE; swi(OS_Byte, 15, 1); /* Flush input buffer */ } } /* * Recursively expand one path component into all matching files and/or * directories. * "path" has backslashes before chars that are not to be expanded. * Return the number of matches found. */ int mch_expandpath(gap, path, flags) garray_T *gap; /* Grow array for results. */ char_u *path; int flags; /* EW_* flags */ { int got; /* Number of matches. */ char_u *pattern; /* Plan: * * 1) Get first part of path - no wildcards * 2) Get next path element (wildcarded) * 3) Get rest of path * * If (3) is nothing then only the leaf is wildcarded - add to gap * Otherwise call recursively for each path in (2), passing (3) * * This is just the header function. */ /* We must be able to modifiy path, so make a copy */ pattern = vim_strsave(path); if (pattern == NULL) return 0; got = expand_section(gap, (char_u *)"", pattern, flags); vim_free(pattern); return got; } /* * expand_section(gap, "$.Dir1.Dir2", "ABBA*.myleaf##") * * calls expand_section(gap, "$.Dir1.Dir2.ABBA_Gold", "myleaf##") * and expand_section(gap, "$.Dir1.Dir2.ABBA_Live", "myleaf##") * * If rest is just a leaf then all matches are added to gap. * * Returns number of items added to gap. */ int expand_section(gap, root, rest, flags) garray_T *gap; char_u *root; /* Non-wildcarded path to search */ char_u *rest; /* Wildcarded remainder of path */ int flags; /* Add dirs/files/missing objects. */ { static char_u buf[MAXPATHL]; /* Temporary buffer. */ char_u dir[MAXPATHL]; int start_element = -1; /* Start of wildcarded element */ char_u c; int i; int got, dir_pos; int buflen; /* Chars used in buf[] */ int colon = 0; /* Dir ends in ':' */ buflen = strlen(root); STRNCPY(buf, root, buflen); /* Copy root into buffer. */ /* * Find end of nonwildcarded section. * Count ':' as a path sep since Vim:Bug* is a valid pathname. */ for (i = 0; c = rest[i]; i++) { if (c == PATHSEP) { start_element = i; colon = 0; } if (c == ':') { start_element = i + 1; colon = 1; } if (c == '#' || c == '*') break; } if (c == 0) start_element = i; /* * start_element +> terminator for non-wildcarded section. * Transfer this bit into buf. */ if (buflen + start_element + 4 >= MAXPATHL) return 0; /* Buffer full */ if (start_element >= 0) { if (*root && !colon) buf[buflen++] = PATHSEP; strncpy(buf + buflen, rest, start_element); buflen += start_element; } buf[buflen] = 0; /* * Did we reach the end of the string without hitting any wildcards? */ if (c == 0) { /* Yes - add combined path to grow array and return. */ addfile(gap, buf, flags); return 1; } if (start_element < 0 || !colon) start_element++; rest += start_element; /* * rest does contain wildcards if we get here. * * Now : have we reached the leaf names part yet? * If so, add all matches (files and dirs) to gap. * If not, get next path element and scan all matching directories. */ start_element = -1; for (i = 0; rest[i]; i++) { if (rest[i] == '.') { start_element = i; rest[i] = 0; /* Break string here. */ break; } } /* If start_element is -1 then we are matching leaf names */ r3 = 0; /* Number of objs read. */ dir_pos = 0; /* Position through directory. */ got = 0; /* Files added so far. */ while (dir_pos != -1) { buf[buflen] = 0; if (xswi(OS_GBPB, 9, buf, /* Directory to scan. */ buf + buflen + (1 - colon), /* Buffer for result. */ 1, /* Number of objects to read. */ dir_pos, /* Search position. */ MAXPATHL - 2 - buflen, /* Size of result buffer. */ rest) /* Wildcarded leafname. */ & v_flag) { EMSG(r0 + 4); r4 = -1; } dir_pos = r4; /* r4 corrupted by addfile() */ if (r3 > 0) { char_u *path = buf; if (buflen == 0) path++; /* Don't do '.File' */ else if (!colon) buf[buflen] = '.'; /* Join path and leaf */ /* Path -> full path of object found */ if (start_element == -1) { addfile(gap, path, flags); got++; } else { /* Scan into subdirectories and images; ignore files */ swi(OS_File, 17, path); if (r0 == 2 || r0 == 3) got += expand_section(gap, path, rest + start_element + 1, flags); } } } /* Restore the dot if we removed it. */ if (start_element >= 0) rest[start_element] = '.'; return got; } /* * mch_expand_wildcards() - this code does wild-card pattern matching using * the shell. It isn't used under RISC OS. * * return OK for success, FAIL for error (you may lose some memory) and put * an error message in *file. * * num_pat is number of input patterns * pat is array of pointers to input patterns * num_file is pointer to number of matched file names * file is pointer to array of pointers to matched file names */ int mch_expand_wildcards(num_pat, pat, num_file, file, flags) int num_pat; char_u **pat; int *num_file; char_u ***file; int flags; /* EW_* flags */ { /* This doesn't get called unless SPECIAL_WILDCHAR is defined. */ return FAIL; } /* * Return TRUE if "p" contains wildcards which can be expanded by * mch_expandpath(). */ int mch_has_exp_wildcard(p) char_u *p; { if (vim_strpbrk((char_u *)"*#", p)) return TRUE; return FALSE; } /* Return TRUE if "p" contains wildcards. */ int mch_has_wildcard(p) char_u *p; { if (vim_strpbrk((char_u *)"*#`", p)) return TRUE; return FALSE; } int /* see Unix unlink(2) */ mch_remove(file) char_u *file; /* Name of file to delete. */ { if (xswi(OS_FSControl, 27, file, 0, 0) & v_flag) return EXIT_FAILURE; return EXIT_SUCCESS; } /* Try to make existing scripts work without modification. * Return a pointer to the new string (freed by caller), or NULL * * Two main cases: * - Absolute : $VIM/syntax/help.vim * - Relative : Adfs::4.$.!Vim.Resources.Syntax/help.vim */ char_u * mch_munge_fname(fname) char_u *fname; { char_u c; int len; char_u *retval; retval = fname = vim_strsave(fname); if (fname == NULL) return NULL; if (strncmp(fname, "$VIM/", 5) == 0) { strncpy(fname, "Vim:", 4); for (fname += 5; c = *fname; fname++) { if (c == '.') break; if (c == '/') fname[-1] = '.'; else fname[-1] = c; } fname[-1] = '\0'; } else { /* Check to see if the file exists without modification. */ if (xswi(OS_File, 17, fname) & v_flag) r0 == 0; /* Invalid filename? */ if (r0) return retval; len = strlen(fname); if (strcmp(fname + len - 4, ".vim") == 0) { fname[len - 4] = '\0'; for (; c = *fname; fname++) { if (c == '/') *fname = '.'; } } } return retval; } /* QuickFix reads munged names from the error file. * Correct them. */ int ro_buflist_add(old_name) char_u *old_name; /* Name of file found by quickfix */ { char_u *fname; char_u *leaf; /* Pointer to start of leaf in old_name */ char_u *ptr; char_u c; int retval; if (old_name == NULL) return buflist_add(NULL, 0); /* Copy the name so we can mess around with it. */ fname = vim_strsave(old_name); if (fname == NULL) /* Out of memory - can't modify name */ return buflist_add(old_name, 0); /* Change `dir/main.c' into `dir.c.main' */ leaf = fname; for (ptr = fname; c = *ptr; ptr++) { if (c == '/') { leaf = ptr + 1; *ptr = '.'; } else if (c == '.') break; } if (c == '.') { /* Change `main.c' into `c.main' * | | * leaf ptr */ ptr += old_name - fname; *ptr = '\0'; sprintf(leaf, "%s.%s", ptr + 1, leaf - fname + old_name); } retval = buflist_add(fname, 0); free(fname); return retval; } /* Change the current directory. * Strip trailing dots to make it easier to use with filename completion. * Return 0 for success, -1 for failure. */ int mch_chdir(dir) char_u *dir; { int length; int retval; char_u *new_dir; if (p_verbose >= 5) { verbose_enter(); smsg((char_u *)"chdir(%s)", dir); verbose_leave(); } length = strlen(dir); if (dir[length - 1] != '.') return chdir(dir); /* No trailing dots - nothing to do. */ new_dir = vim_strsave(dir); if (new_dir == NULL) return chdir(dir); /* Can't allocate memory. */ while (new_dir[--length] == '.') new_dir[length] = '\0'; retval = chdir(new_dir); vim_free(new_dir); return retval; } /* Examine the named file, and set the 'osfiletype' option * (in curbuf) to the file's type. */ void mch_read_filetype(file) char_u *file; { int type; char_u type_string[9]; int i; if (xswi(OS_File, 23, file) & v_flag) type = 0xfff; /* Default to Text */ else type = r6; /* Type is the numerical value - see if we have a textual equivalent */ swi(OS_FSControl, 18, 0, type); ((int *) type_string)[0] = r2; ((int *) type_string)[1] = r3; type_string[8] = 0; for (i = 0; type_string[i] > ' '; i++) ; type_string[i] = 0; set_string_option_direct("osfiletype", -1, type_string, OPT_FREE, 0); return; } void mch_set_filetype(file, type) char_u *file; char_u *type; { if (xswi(OS_FSControl, 31, type) & v_flag) { EMSG(_("E366: Invalid 'osfiletype' option - using Text")); r2 = 0xfff; } swi(OS_File, 18, file, r2); } /* Return TRUE if the file's type matches 'type' * RISC OS types always start with '&' */ int mch_check_filetype(fname, type) char_u *fname; char_u *type; { int value; char *end; if (*type != '&') return FALSE; value = strtol(type + 1, &end, 16); if (*end) return FALSE; /* Invalid type (report error?) */ if (xswi(OS_File, 23, fname) & v_flag) return FALSE; /* Invalid filename? */ return (r0 && r6 == value); }