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- #if !defined(lint) && !defined(DOS)
- static char rcsid[] = "$Id: browse.c,v 4.10 1993/10/20 23:06:57 mikes Exp $";
- #endif
- /*
- * Program: Routines to support file browser in pico and Pine composer
- *
- *
- * Michael Seibel
- * Networks and Distributed Computing
- * Computing and Communications
- * University of Washington
- * Administration Builiding, AG-44
- * Seattle, Washington, 98195, USA
- * Internet: mikes@cac.washington.edu
- *
- * Please address all bugs and comments to "pine-bugs@cac.washington.edu"
- *
- * Copyright 1991-1993 University of Washington
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose and without fee to the University of
- * Washington is hereby granted, provided that the above copyright notice
- * appears in all copies and that both the above copyright notice and this
- * permission notice appear in supporting documentation, and that the name
- * of the University of Washington not be used in advertising or publicity
- * pertaining to distribution of the software without specific, written
- * prior permission. This software is made available "as is", and
- * THE UNIVERSITY OF WASHINGTON DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED,
- * WITH REGARD TO THIS SOFTWARE, INCLUDING WITHOUT LIMITATION ALL IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND IN
- * NO EVENT SHALL THE UNIVERSITY OF WASHINGTON BE LIABLE FOR ANY SPECIAL,
- * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, TORT
- * (INCLUDING NEGLIGENCE) OR STRICT LIABILITY, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Pine and Pico are trademarks of the University of Washington.
- * No commercial use of these trademarks may be made without prior
- * written permission of the University of Washington.
- *
- *
- * NOTES:
- *
- * Misc. thoughts (mss, 5 Apr 92)
- *
- * This is supposed to be just a general purpose browser, equally
- * callable from either pico or the pine composer. Someday, it could
- * even be used to "wrap" the unix file business for really novice
- * users. The stubs are here for renaming, copying, creating directories,
- * deleting, undeleting (thought is delete just moves files to
- * ~/.pico.deleted directory or something and undelete offers the
- * files in there for undeletion: kind of like the mac trashcan).
- *
- * Nice side effects
- *
- * Since the full path name is always maintained and referencing ".."
- * stats the path stripped of its trailing name, the unpleasantness of
- * symbolic links is hidden.
- *
- * Fleshed out the file managements stuff (mss, 24 June 92)
- *
- *
- */
- #include <stdio.h>
- #include <ctype.h>
- #include <errno.h>
- #include "osdep.h"
- #include "pico.h"
- #include "estruct.h"
- #include "edef.h"
- #include "efunc.h"
- #ifdef HEBREW
- #include "hebrew.h"
- #endif
-
- #if defined(bsd)
- extern int errno;
- #endif
-
- /*
- * directory cell structure
- */
- struct fcell {
- char *fname; /* file name */
- unsigned mode; /* file's mode */
- char size[16]; /* file's size in s */
- struct fcell *next;
- struct fcell *prev;
- };
-
-
- /*
- * master browser structure
- */
- static struct bmaster {
- struct fcell *head; /* first cell in list */
- struct fcell *top; /* cell in top left */
- struct fcell *current; /* currently selected */
- int longest; /* longest file name */
- int fpl; /* file names per line */
- int cpf; /* chars / file / line */
- char dname[NLINE]; /* this dir's name */
- char *names; /* malloc'd name array */
- } *gmp; /* global master ptr */
-
- #ifdef ANSI
- struct bmaster *getfcells(char *);
- int PaintCell(int, int, int, struct fcell *, int);
- int PaintBrowser(struct bmaster *, int);
- int BrowserKeys(void);
- int layoutcells(struct bmaster *);
- int PlaceCell(struct bmaster *, struct fcell *, int *, int *);
- int zotfcells(struct fcell *);
- int zotmaster(struct bmaster **);
- struct fcell *FindCell(struct bmaster *, char *);
- int sisin(char *, char *);
- int BrowserAnchor(char *);
- #else
- struct bmaster *getfcells();
- int PaintCell();
- int PaintBrowser();
- int BrowserKeys();
- int layoutcells();
- int PlaceCell();
- int zotfcells();
- int zotmaster();
- struct fcell *FindCell();
- int sisin();
- int BrowserAnchor();
- #endif
-
-
- /*
- * function key mappings...
- */
- static int bfmappings[12][2] = { { F1, '?'}, /* function key */
- { F2, 's'}, /* mappings... */
- { F3, 'e'},
- { F4, 'g'},
- { F5, 'r'},
- { F6, 'w'},
- { F7, '-'},
- { F8, ' '},
- { F9, 'd'},
- { F10, NODATA },
- { F11, 'm'},
- { F12, NODATA } };
-
-
- /*
- * Browser help for pico (pine composer help handed to us by pine)
- */
- static char *BrowseHelpText[] = {
- "Help for Browse Command",
- " ",
- "\tPico's file browser is used to select a file from the",
- "\tfile system for inclusion in the edited text.",
- " ",
- "~\tBoth directories and files are displayed. Press ~S",
- "~\tor ~R~e~t~u~r~n to select a file or directory. When a file",
- "\tis selected during the \"Read File\" command, it is",
- "\tinserted into edited text. Answering \"yes\" to the",
- "\tverification question after a directory is selected causes",
- "\tthe contents of that directory to be displayed for selection.",
- " ",
- "\tThe file named \"..\" is special, and means the \"parent\"",
- "\tof the directory being displayed. Select this directory",
- "\tto move upward in the directory tree.",
- " ",
- "End of Browser Help.",
- " ",
- NULL
- };
-
-
-
-
-
- /*
- * FileBrowse - display contents of given directory dir
- *
- * returns:
- * dir points to currently selected directory
- * fn points to currently selected file
- * sz points to size of file if ptr passed was non-NULL
- * 1 if a file's been selected
- * 0 if no files seleted
- * -1 if there where problems
- */
- FileBrowse(dir, fn, sz)
- char *dir, *fn, *sz; /* dir, name and optional size */
- {
- int status, i, j, c;
- int row, col;
- char *p, child[NLINE];
- struct bmaster *mp, *getfcells();
- struct fcell *tp;
-
- child[0] = '\0';
-
- if((gmode&MDSCUR) && homeless(dir)){
- emlwrite("\007Can't read %s in restricted mode", dir);
- sleep(2);
- return(0);
- }
-
- /* build contents of cell structures */
- if((gmp = getfcells(dir)) == NULL)
- return(-1);
-
- /* paint screen */
- PaintBrowser(gmp, 0);
-
- while(1){ /* the big loop */
- movecursor(term.t_nrow-2, 0);
-
- (*term.t_flush)();
- #ifdef HEBREW
- message_mode=1;
- #endif
- c = GetKey();
- #ifdef HEBREW
- message_mode=0;
- #endif
-
- if(Pmaster){
- if(c == NODATA || time_to_check()){ /* new mail ? */
- if((*Pmaster->newmail)(&j, 0, c == NODATA ? 0 : 2) >= 0){
- mlerase();
- (*Pmaster->showmsg)(c);
- mpresf = 1;
- }
-
- if(j || mpresf){
- (*term.t_move)(term.t_nrow-2, 0);
- (*Pmaster->clearcur)();
- }
-
- if(c == NODATA) /* GetKey timed out */
- continue;
- }
- }
- else{
- if(timeout && (c == NODATA || time_to_check()))
- if(pico_new_mail())
- emlwrite("You may possibly have new mail.", NULL);
-
- if(c == NODATA)
- continue;
- }
-
- if(mpresf){ /* blast old messages */
- if(mpresf++ > MESSDELAY){ /* every few keystrokes */
- mlerase();
- }
- }
-
- switch(normal(c, bfmappings, 2)){ /* process commands */
-
- case K_PAD_RIGHT: /* move right */
- case (CTRL|'@'):
- case (CTRL|'F'): /* forward */
- if(gmp->current->next == NULL){
- (*term.t_beep)();
- break;
- }
-
- PlaceCell(gmp, gmp->current, &row, &col);
- PaintCell(row, col, gmp->cpf, gmp->current, 0);
- gmp->current = gmp->current->next;
- if(PlaceCell(gmp, gmp->current, &row, &col)){
- PaintBrowser(gmp, 1);
- }
- else
- PaintCell(row, col, gmp->cpf, gmp->current, 1);
- break;
-
- case K_PAD_LEFT: /* move left */
- case (CTRL|'B'): /* back */
- if(gmp->current->prev == NULL){
- (*term.t_beep)();
- break;
- }
-
- PlaceCell(gmp, gmp->current, &row, &col);
- PaintCell(row, col, gmp->cpf, gmp->current, 0);
- gmp->current = gmp->current->prev;
- if(PlaceCell(gmp, gmp->current, &row, &col)){
- PaintBrowser(gmp, 1);
- }
- else
- PaintCell(row, col, gmp->cpf, gmp->current, 1);
- break;
-
- case (CTRL|'A'): /* beginning of line */
- tp = gmp->current;
- i = col;
- while(i > 0){
- i -= gmp->cpf;
- if(tp->prev != NULL)
- tp = tp->prev;
- }
- PlaceCell(gmp, gmp->current, &row, &col);
- PaintCell(row, col, gmp->cpf, gmp->current, 0);
- gmp->current = tp;
- if(PlaceCell(gmp, tp, &row, &col)){
- PaintBrowser(gmp, 1);
- }
- else
- PaintCell(row, col, gmp->cpf, gmp->current, 1);
- break;
-
- case (CTRL|'E'): /* end of line */
- tp = gmp->current;
- i = col + gmp->cpf;
- while(i+gmp->cpf <= gmp->cpf * gmp->fpl){
- i += gmp->cpf;
- if(tp->next != NULL)
- tp = tp->next;
- }
-
- PlaceCell(gmp, gmp->current, &row, &col);
- PaintCell(row, col, gmp->cpf, gmp->current, 0);
- gmp->current = tp;
- if(PlaceCell(gmp, tp, &row, &col)){
- PaintBrowser(gmp, 1);
- }
- else
- PaintCell(row, col, gmp->cpf, gmp->current, 1);
- break;
-
- case (CTRL|'V'): /* page forward */
- case ' ':
- case K_PAD_NEXTPAGE :
- case K_PAD_END :
- tp = gmp->top;
- i = term.t_nrow - 4;
-
- while(i-- && tp->next != NULL){
- j = 0;
- while(++j <= gmp->fpl && tp->next != NULL)
- tp = tp->next;
- }
-
- if(tp == NULL)
- continue;
-
- PlaceCell(gmp, gmp->current, &row, &col);
- PaintCell(row, col, gmp->cpf, gmp->current, 0);
- gmp->current = tp;
- if(PlaceCell(gmp, tp, &row, &col)){
- PaintBrowser(gmp, 1);
- }
- else
- PaintCell(row, col, gmp->cpf, gmp->current, 1);
- break;
-
- case '-' :
- case (CTRL|'Y'): /* page backward */
- case K_PAD_PREVPAGE :
- case K_PAD_HOME :
- tp = gmp->top;
- i = term.t_nrow - 6;
- while(i-- && tp != NULL){
- j = gmp->fpl;
- while(j-- && tp != NULL)
- tp = tp->prev;
- }
-
- if(tp || (gmp->current != gmp->top)){ /* clear old hilite */
- PlaceCell(gmp, gmp->current, &row, &col);
- PaintCell(row, col, gmp->cpf, gmp->current, 0);
- }
-
- if(tp) /* new page ! */
- gmp->current = tp;
- else if(gmp->current != gmp->top) /* goto top of page */
- gmp->current = gmp->top;
- else /* do nothing */
- continue;
-
- if(PlaceCell(gmp, gmp->current, &row, &col)){
- PaintBrowser(gmp, 1);
- }
- else
- PaintCell(row, col, gmp->cpf, gmp->current, 1);
-
- break;
-
- case K_PAD_DOWN :
- case (CTRL|'N'): /* next */
- tp = gmp->current;
- i = gmp->fpl;
- while(i--){
- if(tp->next == NULL){
- (*term.t_beep)();
- break;
- }
- else
- tp = tp->next;
- }
- if(i != -1) /* can't go down */
- break;
-
- PlaceCell(gmp, gmp->current, &row, &col);
- PaintCell(row, col, gmp->cpf, gmp->current, 0);
- gmp->current = tp;
- if(PlaceCell(gmp, tp, &row, &col)){
- PaintBrowser(gmp, 1);
- }
- else
- PaintCell(row, col, gmp->cpf, gmp->current, 1);
- break;
-
- case K_PAD_UP :
- case (CTRL|'P'): /* previous */
- tp = gmp->current;
- i = gmp->fpl;
- while(i-- && tp)
- tp = tp->prev;
-
- if(tp == NULL)
- break;
-
- PlaceCell(gmp, gmp->current, &row, &col);
- PaintCell(row, col, gmp->cpf, gmp->current, 0);
- gmp->current = tp;
- if(PlaceCell(gmp, tp, &row, &col)){
- PaintBrowser(gmp, 1);
- }
- else
- PaintCell(row, col, gmp->cpf, gmp->current, 1);
- break;
-
- case 'e': /* user exits */
- case 'E':
- zotmaster(&gmp);
- return(0);
-
- case 'x': /* user exits wrong */
- case 'X':
- if(!(gmode&MDBRONLY)){
- emlwrite("\007Unknown command '%c'", (void *)c);
- break;
- }
-
- zotmaster(&gmp);
- return(0);
-
- case 'd': /* delete */
- case 'D':
- if(gmp->current->mode){
- /* BUG: if dir is empty it should be deleted */
- emlwrite("\007Can't delete a directory", NULL);
- break;
- }
-
- if(gmode&MDSCUR){ /* not allowed! */
- emlwrite("Delete not allowed in restricted mode",NULL);
- break;
- }
-
- sprintf(child, "%s%c%s", gmp->dname, C_FILESEP,
- gmp->current->fname);
-
- i = 0;
- while(i++ < 2){ /* verify twice!! */
- if(i == 1){
- if(fexist(child, "w", (long *)NULL) != FIOSUC)
- sprintf(s,"File is write protected! OVERRIDE", child);
- else
- sprintf(s, "Delete file \"%s\"", child);
- }
- else
- strcpy(s, "File CANNOT be UNdeleted! Really delete");
-
- if((status = mlyesno(s, FALSE)) != TRUE){
- if(status == ABORT)
- emlwrite("\007Delete Cancelled", NULL);
- else
- emlwrite("File Not Deleted", NULL);
- break;
- }
- }
-
- if(status == TRUE){
- if(unlink(child) < 0){
- emlwrite("Delete Failed: %s", errstr(errno));
- }
- else{ /* fix up pointers and redraw */
- tp = gmp->current;
- if(tp->next){
- gmp->current = tp->next;
- if(tp->next->prev = tp->prev)
- tp->prev->next = tp->next;
- }
- else if(tp->prev) {
- gmp->current = tp->prev;
- if(tp->prev->next = tp->next)
- tp->next->prev = tp->prev;
- }
-
- tp->fname = NULL;
- tp->next = tp->prev = NULL;
- if(tp != gmp->current)
- free((char *) tp);
-
- if((tp = FindCell(gmp, gmp->current->fname)) != NULL){
- gmp->current = tp;
- PlaceCell(gmp, gmp->current, &row, &col);
- }
-
- PaintBrowser(gmp, 1);
- mlerase();
- }
- }
- break;
-
- case '?': /* HELP! */
- if(Pmaster)
- (*Pmaster->helper)(Pmaster->browse_help,
- "Help for Browsing", 1);
- else
- pico_help(BrowseHelpText, "Help for Browsing", 1);
- /* fall thru to repaint everything */
-
- case (CTRL|'L'):
- PaintBrowser(gmp, 0);
- break;
-
- case 'g': /* jump to a directory */
- case 'G':
- i = 0;
- child[0] = '\0';
-
- while(!i){
-
- wkeyhelp("GC0000000000", "Get Help,Cancel");
-
- status = mlreply("Directory to go to: ", child, NLINE, QFFILE);
-
- switch(status){
- case HELPCH:
- emlwrite("\007No help yet!", NULL);
- /* remove break and sleep after help text is installed */
- sleep(3);
- break;
- case (CTRL|'L'):
- PaintBrowser(gmp, 0);
- break;
- case ABORT:
- emlwrite("Cancelled", NULL);
- i++;
- break;
- case FALSE:
- case TRUE:
- i++;
-
- if(*child == '\0')
- strcpy(child, gethomedir(NULL));
-
- if(!compresspath(gmp->dname, child, NLINE)){
- emlwrite("Invalid Directory: %s", child);
- break;
- }
-
- if((gmode&MDSCUR) && homeless(child)){
- emlwrite("Restricted mode browsing limited to home directory",NULL);
- break;
- }
-
- if(isdir(child, (long *) NULL)){
- if((mp = getfcells(child)) == NULL){
- /* getfcells should explain what happened */
- i++;
- break;
- }
-
- zotmaster(&gmp);
- gmp = mp;
- PaintBrowser(gmp, 0);
- }
- else
- emlwrite("\007Not a directory: \"%s\"", child);
-
- break;
- default:
- break;
- }
- }
- BrowserKeys();
- break;
-
- case 'm': /* copy */
- case 'M':
- if(gmp->current->mode){
- emlwrite("\007Can't copy a directory", NULL);
- break;
- }
-
- if(gmode&MDSCUR){ /* not allowed! */
- emlwrite("Copy not allowed in restricted mode",NULL);
- break;
- }
-
- i = 0;
- child[0] = '\0';
-
- while(!i){
-
- wkeyhelp("GC0000000000", "Get Help,Cancel");
-
- switch(status=mlreply("Name of new copy: ", child, NLINE, QFFILE)){
- case HELPCH:
- emlwrite("\007No help yet!", NULL);
- /* remove break and sleep after help text is installed */
- sleep(3);
- break;
- case (CTRL|'L'):
- PaintBrowser(gmp, 0);
- break;
- case ABORT:
- emlwrite("Make Copy Cancelled", NULL);
- i++;
- break;
- case FALSE:
- i++;
- mlerase();
- break;
- case TRUE:
- i++;
-
- if(child[0] == '\0'){
- emlwrite("No destination, file not copied", NULL);
- break;
- }
-
- if(!strcmp(gmp->current->fname, child)){
- emlwrite("\007Can't copy file on to itself!", NULL);
- break;
- }
-
- strcpy(s, child); /* add full path! */
- sprintf(child, "%s%c%s", gmp->dname, C_FILESEP, s);
-
- if((status = fexist(child, "w", (long *)NULL)) == FIOSUC){
- sprintf(s,"File \"%s\" exists! OVERWRITE", child);
- if((status = mlyesno(s, 0)) != TRUE){
- if(status == ABORT)
- emlwrite("\007Make Copy Cancelled", NULL);
- else
- emlwrite("File Not Renamed", NULL);
- break;
- }
- }
- else if(status != FIOFNF){
- fioperr(status, child);
- break;
- }
-
- sprintf(s, "%s%c%s", gmp->dname, C_FILESEP,
- gmp->current->fname);
-
- if(copy(s, child) < 0){
- /* copy() will report any error messages */
- break;
- }
- else{ /* highlight new file */
- emlwrite("File copied to %s", child);
-
- if((p = strrchr(child, C_FILESEP)) == NULL){
- emlwrite("Problems refiguring browser", NULL);
- break;
- }
-
- *p = '\0';
- strcpy(s, (p == child) ? S_FILESEP: child);
-
- /*
- * new file in same dir? if so, refigure files
- * and redraw...
- */
- if(!strcmp(s, gmp->dname)){
- strcpy(child, gmp->current->fname);
- if((mp = getfcells(gmp->dname)) == NULL)
- /* getfcells should explain what happened */
- break;
-
- zotmaster(&gmp);
- gmp = mp;
- if((tp = FindCell(gmp, child)) != NULL){
- gmp->current = tp;
- PlaceCell(gmp, gmp->current, &row, &col);
- }
-
- PaintBrowser(gmp, 1);
- }
- }
- break;
- default:
- break;
- }
- }
- BrowserKeys();
- break;
-
- case 'r': /* rename */
- case 'R':
- i = 0;
- child[0] = '\0';
-
- if(!strcmp(gmp->current->fname, "..")){
- emlwrite("\007Can't rename \"..\"", NULL);
- break;
- }
-
- if(gmode&MDSCUR){ /* not allowed! */
- emlwrite("Rename not allowed in restricted mode",NULL);
- break;
- }
-
- while(!i){
-
- wkeyhelp("GC0000000000", "Get Help,Cancel");
-
- switch(status=mlreply("Rename file to: ", child, NLINE, QFFILE)){
- case HELPCH:
- emlwrite("\007No help yet!", NULL);
- /* remove break and sleep after help text is installed */
- sleep(3);
- break;
- case (CTRL|'L'):
- PaintBrowser(gmp, 0);
- break;
- case ABORT:
- emlwrite("Cancelled", NULL);
- i++;
- break;
- case FALSE:
- case TRUE:
- i++;
-
- if(child[0] == '\0' || status == FALSE){
- mlerase();
- break;
- }
-
- strcpy(s, child);
- sprintf(child, "%s%c%s", gmp->dname, C_FILESEP, s);
-
- status = fexist(child, "w", (long *)NULL);
- if(status == FIOSUC || status == FIOFNF){
- if(status == FIOSUC){
- sprintf(s,"File \"%s\" exists! OVERWRITE", child);
-
- if((status = mlyesno(s, FALSE)) != TRUE){
- if(status == ABORT)
- emlwrite("\007Cancelled", NULL);
- else
- emlwrite("Not Renamed", NULL);
- break;
- }
- }
-
- sprintf(s, "%s%c%s", gmp->dname, C_FILESEP,
- gmp->current->fname);
-
- if(rename(s, child) < 0){
- emlwrite("Rename Failed: %s", errstr(errno));
- }
- else{
- if((p = strrchr(child, C_FILESEP)) == NULL){
- emlwrite("Problems refiguring browser", NULL);
- break;
- }
-
- *p = '\0';
- strcpy(s, (p == child) ? S_FILESEP: child);
-
- if((mp = getfcells(s)) == NULL)
- /* getfcells should explain what happened */
- break;
-
- zotmaster(&gmp);
- gmp = mp;
-
- if((tp = FindCell(gmp, ++p)) != NULL){
- gmp->current = tp;
- PlaceCell(gmp, gmp->current, &row, &col);
- }
-
- PaintBrowser(gmp, 1);
- mlerase();
- }
- }
- else{
- fioperr(status, child);
- }
- break;
- default:
- break;
- }
- }
- BrowserKeys();
- break;
-
- case 's': /* user's selected */
- case 'S':
- case (CTRL|'M'):
-
- if(gmp->current->mode){
- *child = '\0';
-
- while(1){
- i = mlyesno("A directory is selected, enter it", 1);
- if(i == TRUE){
- strcpy(s, gmp->dname);
- p = gmp->current->fname;
- if(p[0] == '.' && p[1] == '.' && p[2] == '\0'){
-
- if((p=strrchr(s, C_FILESEP)) != NULL){
- *p = '\0';
-
- if((gmode&MDSCUR) && homeless(s)){
- emlwrite("\007Can't visit parent in restricted mode", NULL);
- break;
- }
-
- strcpy(child, &p[1]);
- if(p == s
- #ifdef DOS
- || (s[1] == ':' && s[2] == '\0')
- #endif
- ){ /* is it root? */
- if(*child)
- #ifdef DOS
- strcat(s, S_FILESEP);
- #else
- strcpy(s, S_FILESEP);
- #endif
- else{
- emlwrite("\007Can't move up a directory", NULL);
- break;
- }
- }
- }
- }
- else{
- if(s[1] != '\0') /* were in root? */
- strcat(s, S_FILESEP);
- strcat(s, gmp->current->fname);
- }
-
- if((mp = getfcells(s)) == NULL)
- /* getfcells should explain what happened */
- break;
-
- zotmaster(&gmp);
- gmp = mp;
-
- if(*child){
- if((tp = FindCell(gmp, child)) != NULL){
- gmp->current = tp;
- PlaceCell(gmp, gmp->current, &row, &col);
- }
- else
- emlwrite("\007Problem finding dir \"%s\"",child);
- }
-
- PaintBrowser(gmp, 0);
- break;
- }
- else if(i == FALSE){
- mlerase();
- break;
- }
- else if(i == ABORT){
- emlwrite("Cancelled", NULL);
- break;
- }
- else if(i == (CTRL|'L')){
- PaintBrowser(gmp, 0);
- }
- else
- (*term.t_beep)();
- }
- }
- else{ /* just return */
- strcpy(dir, gmp->dname);
- strcpy(fn, gmp->current->fname);
- if(sz != NULL) /* size uninteresting */
- strcpy(sz, gmp->current->size);
-
- if(gmode&MDBRONLY){
- i = 0;
- sprintf(child, "%s%c%s", gmp->dname, C_FILESEP, fn);
- /* stat file for executable bit */
- if(fexist(child, "x", NULL) == FIOSUC){
- while(!i){
- switch(mlyesno("Program selected, run it", 1)){
- case TRUE:
- strcpy(child, fn);
- while(!i){
- switch(status=mlreply("Command line : ",
- child, NLINE, QNORML)){
- case HELPCH:
- emlwrite("\007No help yet!", NULL);
- /* remove break and sleep after help text is installed */
- sleep(3);
- break;
- case (CTRL|'L'):
- PaintBrowser(gmp, 0);
- break;
- case ABORT:
- emlwrite("Cancelled", NULL);
- i++;
- break;
- case FALSE:
- case TRUE:
- i++;
-
- if(child[0]=='\0' || status==FALSE){
- mlerase();
- break;
- }
-
- vttidy();
- system(child);
- ttopen();
-
- /* recompute browser */
- /* redraw browser */
- PaintBrowser(gmp, 0);
- break;
- default:
- break;
- }
- }
-
- break;
- case FALSE:
- i += 2;
- mlerase();
- break;
- case ABORT:
- i++;
- emlwrite("Cancelled", NULL);
- break;
- case (CTRL|'L'):
- PaintBrowser(gmp, 0);
- break;
- default:
- (*term.t_beep)();
- break;
- }
- }
- }
-
- if(i == 2) /* do something else to executable? */
- i = 0;
-
- while(!i){
- *child = '\0';
- wkeyhelp("GC0000000000", "Get Help,Cancel");
- switch(status=mlreply("Program to use on file : ",
- child, NLINE, QNORML)){
- case HELPCH:
- emlwrite("\007No help yet!", NULL);
- /* remove break and sleep after help text is installed */
- sleep(3);
- break;
- case (CTRL|'L'):
- PaintBrowser(gmp, 0);
- break;
- case ABORT:
- emlwrite("Cancelled", NULL);
- i++;
- break;
- case FALSE:
- case TRUE:
- i++;
-
- if(child[0] == '\0' || status == FALSE){
- mlerase();
- break;
- }
-
- strcat(child, " ");
- strcat(child, gmp->dname);
- strcat(child, S_FILESEP);
- strcat(child, fn);
-
- vttidy();
- system(child);
- ttopen();
-
- /* recompute browser */
- /* redraw browser */
- PaintBrowser(gmp, 0);
- break;
- default:
- break;
- }
- }
-
- BrowserKeys();
- }
- else{
- zotmaster(&gmp);
- return(1);
- }
- }
- break;
-
- case 'w': /* Where is */
- case 'W':
- i = 0;
-
- while(!i){
-
- wkeyhelp("GC0000000000", "Get Help,Cancel");
-
- switch(readpattern("File name to find")){
- case HELPCH:
- emlwrite("\007No help yet!", NULL);
- /* remove break and sleep after help text is installed */
- sleep(3);
- break;
- case (CTRL|'L'):
- PaintBrowser(gmp, 0);
- break;
- case ABORT:
- emlwrite("Cancelled", NULL);
- i++;
- break;
- case FALSE:
- mlerase();
- i++;
- break;
- case TRUE:
- if((tp = FindCell(gmp, pat)) != NULL){
- PlaceCell(gmp, gmp->current, &row, &col);
- PaintCell(row, col, gmp->cpf, gmp->current, 0);
- gmp->current = tp;
-
- if(PlaceCell(gmp, tp, &row, &col)){ /* top changed */
- PaintBrowser(gmp, 1);
- }
- else
- PaintCell(row, col, gmp->cpf, gmp->current, 1);
- mlerase();
- }
- else
- emlwrite("\"%s\" not found", pat);
-
- i++;
- break;
- default:
- break;
- }
- }
- mlerase();
- BrowserKeys();
- break;
-
- case (CTRL|'Z'):
- if(gmode&MDSSPD){
- bktoshell();
- PaintBrowser(gmp,0);
- break;
- } /* fall thru with error! */
-
- default: /* what? */
- if(c < 0xff)
- emlwrite("\007Unknown command: '%c'", (void *) c);
- else if(c & CTRL)
- emlwrite("\007Unknown command: ^%c", (void *)(c&0xff));
- else
- emlwrite("\007Unknown command", NULL);
- case NODATA: /* no op */
- break;
- }
- }
- }
-
-
-
- /*
- * getfcells - make a master browser struct and fill it in
- * return NULL if there's a problem.
- */
- struct bmaster *getfcells(dname)
- char *dname;
- {
- int i, /* various return codes */
- nentries = 0; /* number of dir ents */
- long l;
- char *np, /* names of files in dir */
- *dcp, /* to add file to path */
- **filtnames; /* array filtered names */
- struct fcell *ncp, /* new cell pointer */
- *tcp; /* trailing cell ptr */
- struct bmaster *mp;
-
- if((mp=(struct bmaster *)malloc(sizeof(struct bmaster))) == NULL){
- emlwrite("\007Can't malloc space for master filename cell", NULL);
- return(NULL);
- }
-
- if(dname[0] == '.' && dname[1] == '\0'){ /* remember this dir */
- if(!getcwd(mp->dname, 256))
- mp->dname[0] = '\0';
- }
- else if(dname[0] == '.' && dname[1] == '.' && dname[2] == '\0'){
- if(!getcwd(mp->dname, 256))
- mp->dname[0] = '\0';
- else{
- if((np = (char *)strrchr(mp->dname, C_FILESEP)) != NULL)
- if(np != mp->dname)
- *np = '\0';
- }
- }
- else
- strcpy(mp->dname, dname);
-
- mp->head = mp->top = NULL;
- mp->cpf = mp->fpl = 0;
- mp->longest = 5; /* .. must be labeled! */
-
- if((mp->names = getfnames(mp->dname, &nentries)) == NULL){
- free((char *) mp);
- return(NULL);
- }
-
- /*
- * this is the fun part. build an array of pointers to the fnames we're
- * interested in (i.e., do any filtering), then pass that off to be
- * sorted before building list of cells...
- *
- * right now default filtering on ".*" except "..", but this could
- * easily be made a user option later on...
- */
- if((filtnames=(char **)malloc((nentries+1) * sizeof(char *))) == NULL){
- emlwrite("\007Can't malloc space for name array", NULL);
- zotmaster(&mp);
- return(NULL);
- }
-
- i = 0; /* index of filt'd array */
- np = mp->names;
- while(nentries--){
- if(*np == '.'){ /* filter .* */
- if(np[1] == '\0' || (np[1] != '.' && np[2] != '\0')){
- np += strlen(np) + 1;
- continue;
- }
- }
-
- filtnames[i++] = np;
-
- if((l = strlen(np)) > mp->longest) /* cast l ? */
- mp->longest = l; /* remember longest */
- np += l + 1; /* advance name pointer */
-
- }
- nentries = i; /* new # of entries */
-
- /*
- * sort files case independently
- */
- qsort((QSType *)filtnames, (size_t)nentries, sizeof(char *), sstrcasecmp);
-
- /*
- * this is so we use absolute path names for stats.
- * remember: be careful using dname as directory name, and fix mp->dname
- * when we're done
- */
- dcp = (char *)strchr(mp->dname, '\0');
- if(dcp == mp->dname || dcp[-1] != C_FILESEP){
- dcp[0] = C_FILESEP;
- dcp[1] = '\0';
- }
- else
- dcp--;
-
- i = 0;
- while(nentries--){ /* stat filtered files */
- /* get a new cell */
- if((ncp=(struct fcell *)malloc(sizeof(struct fcell))) == NULL){
- emlwrite("\007Can't malloc cells for browser!", NULL);
- zotfcells(mp->head); /* clean up cells */
- free((char *) filtnames);
- free((char *) mp);
- return(NULL); /* bummer. */
- }
- ncp->next = ncp->prev = NULL;
- ncp->mode = 0;
-
- if(mp->head == NULL){ /* tie it onto the list */
- mp->head = mp->top = mp->current = ncp;
- }
- else{
- tcp->next = ncp;
- ncp->prev = tcp;
- }
- tcp = ncp;
-
- /* fill in the new cell */
- ncp->fname = filtnames[i++];
-
- strcpy(&dcp[1], ncp->fname); /* use abolute path! */
-
- if(ncp->fname[0] == '.' && ncp->fname[1] == '.' && ncp->fname[2] == '\0'){
- ncp->mode = 1; /* parent is special */
- strcpy(ncp->size, "(parent dir)");
- }
- else if(isdir(mp->dname, &l)){
- ncp->mode = 1;
- strcpy(ncp->size, "(dir)");
- }
- else
- strcpy(ncp->size, prettysz(l));
- }
-
- *dcp = '\0'; /* remember to cap dname */
- free((char *) filtnames); /* 'n blast filt'd array*/
-
- layoutcells(mp);
-
- return(mp);
- }
-
-
-
- /*
- * PaintCell - print the given cell at the given location on the display
- * the format of a printed cell is:
- *
- * "<fname> <size> "
- */
- PaintCell(x, y, l, cell, inverted)
- struct fcell *cell;
- int x, y, l, inverted;
- {
- char *p; /* temp str pointer */
- int i = 0, /* current display count */
- j, sl, fl; /* lengths */
-
- if(cell == NULL)
- return(-1);
-
- fl = strlen(cell->fname);
- sl = strlen(cell->size);
-
- movecursor(x, y);
- if(inverted)
- (*term.t_rev)(1);
-
- /* room for fname? */
- p = (fl+2 > l) ? &cell->fname[fl-(l-2)] : cell->fname;
- while(*p != '\0'){ /* write file name */
- pputc(*p++, 0);
- i++;
- }
-
- if(sl+3 <= l-i){ /* room for size? */
- j = (l-i)-(sl+2); /* put space between */
- i += j;
- while(j--) /* file name and size */
- pputc(' ', 0);
-
- p = cell->size;
- while(*p != '\0'){ /* write file size */
- pputc(*p++, 0);
- i++;
- }
- }
-
- if(inverted)
- (*term.t_rev)(0);
-
- while(i++ < l) /* pad ending */
- pputc(' ', 0);
-
- return(1);
- }
-
-
-
- /*
- * PaintBrowse - with the current data, display the browser. if level == 0
- * paint the whole thing, if level == 1 just paint the cells
- * themselves
- */
- PaintBrowser(mp, level)
- struct bmaster *mp;
- int level;
- {
- int i, cl;
- struct fcell *tp;
-
- if(!level){
- cl = (Pmaster) ? term.t_nrow : term.t_nrow - 1;
- for(i = 0; i <= cl; i++){ /* clear screen */
- movecursor(i, 0);
- peeol();
- }
-
- BrowserAnchor(mp->dname);
- }
-
- i = 0;
- tp = mp->top;
- cl = COMPOSER_TOP_LINE; /* current display line */
- while(tp){
-
- PaintCell(cl, mp->cpf * i, mp->cpf, tp, tp == mp->current);
-
- if(++i >= mp->fpl){
- i = 0;
- if(++cl > term.t_nrow-3)
- break;
- }
-
- tp = tp->next;
- }
-
- if(level){
- while(cl <= term.t_nrow - 3){
- if(!i)
- movecursor(cl, 0);
- peeol();
- movecursor(++cl, 0);
- }
- }
- else{
- BrowserKeys();
- }
-
- return(1);
- }
-
-
- /*
- * BrowserKeys - just paints the keyhelp at the bottom of the display
- */
- BrowserKeys()
- {
- char *oldkeys;
-
- /* reassign HelpKeyNames temporarily */
- oldkeys = HelpKeyNames;
- if(gmode&MDBRONLY)
- HelpKeyNames = "~?,~X,~R,~-,~D,~M,~S,~G,~W,~ ,~U,~K, ";
- else if(!(gmode&MDFKEY))
- HelpKeyNames = "~?,~E,~R,~-,~D,~M,~S,~G,~W,~ ,~U,~K, ";
-
- if(gmode&MDBRONLY)
- wkeyhelp("GXR-DMSJW 00", "Help,Exit,Rename,Back Pg,Del File,Make Copy,Select,Goto Dir,Where is,Fwd Pg");
- else
- wkeyhelp("GER-DMSJW 00", "Help,Exit Brwsr,Rename,Back Pg,Del File,Make Copy,Select,Goto Dir,Where is,Fwd Pg");
-
- if(!(gmode&MDFKEY))
- HelpKeyNames = oldkeys; /* retore HelpKeyNames */
- }
-
-
- /*
- * layoutcells - figure out max length of cell and how many cells can
- * go on a line of the display
- */
- layoutcells(mp)
- struct bmaster *mp;
- {
- int i = 1;
-
- mp->cpf = mp->longest + 12; /* max chars / file */
-
- while(i*mp->cpf < term.t_ncol) /* no force... */
- i++; /* like brute force! */
-
- mp->fpl = i - 1; /* files per line */
- }
-
-
- /*
- * PlaceCell - given a browser master, return row and col of the display that
- * it should go.
- *
- * return 1 if mp->top has changed, x,y relative to new page
- * return 0 if otherwise (same page)
- * return -1 on error
- */
- PlaceCell(mp, cp, x, y)
- struct bmaster *mp;
- struct fcell *cp;
- int *x, *y;
- {
- int cl = COMPOSER_TOP_LINE; /* current line */
- int ci = 0; /* current index on line */
- int rv = 0;
- int secondtry = 0;
- struct fcell *tp;
-
- /* will cp fit on screen? */
- tp = mp->top;
- while(1){
- if(tp == cp){ /* bingo! */
- *x = cl;
- *y = ci * mp->cpf;
- break;
- }
-
- if((tp = tp->next) == NULL){ /* above top? */
- if(secondtry++){
- emlwrite("\007Internal error: can't find fname cell", NULL);
- return(-1);
- }
- else{
- tp = mp->top = mp->head; /* try from the top! */
- cl = COMPOSER_TOP_LINE;
- ci = 0;
- rv = 1;
- continue; /* start over! */
- }
- }
-
- if(++ci >= mp->fpl){ /* next line? */
- ci = 0;
- if(++cl > term.t_nrow-3){ /* next page? */
- ci = mp->fpl; /* tp is at bottom right */
- while(ci--) /* find new top */
- tp = tp->prev;
- mp->top = tp;
- ci = 0;
- cl = COMPOSER_TOP_LINE; /* keep checking */
- rv = 1;
- }
- }
-
- }
-
- /* not on display! */
- return(rv);
-
- }
-
-
- /*
- * zotfcells - clean up malloc'd cells of file names
- */
- zotfcells(hp)
- struct fcell *hp;
- {
- struct fcell *tp;
-
- while(hp){
- tp = hp;
- hp = hp->next;
- tp->next = NULL;
- free((char *) tp);
- }
- }
-
-
- /*
- * zotmaster - blast the browser master struct
- */
- zotmaster(mp)
- struct bmaster **mp;
- {
- zotfcells((*mp)->head); /* free cells */
- free((char *)(*mp)->names); /* free file names */
- free((char *)*mp); /* free master */
- *mp = NULL; /* make double sure */
- }
-
-
- /*
- * FindCell - starting from the current cell find the first occurance of
- * the given string wrapping around if necessary
- */
- struct fcell *FindCell(mp, string)
- struct bmaster *mp;
- char *string;
- {
- struct fcell *tp, *fp;
-
- if(*string == '\0')
- return(NULL);
-
- fp = NULL;
- tp = mp->current->next;
-
- while(tp && !fp){
- if(sisin(tp->fname, string))
- fp = tp;
- else
- tp = tp->next;
- }
-
- tp = mp->head;
- while(tp != mp->current && !fp){
- if(sisin(tp->fname, string))
- fp = tp;
- else
- tp = tp->next;
- }
-
- return(fp);
- }
-
-
- /*
- * sisin - case insensitive substring matching function
- */
- sisin(s1, s2)
- char *s1, *s2;
- {
- register int j;
-
- while(*s1){
- j = 0;
- while(toupper(s1[j]) == toupper(s2[j]))
- if(s2[++j] == '\0') /* bingo! */
- return(1);
-
- s1++;
- }
- return(0);
- }
-
-
- /*
- * BrowserAnchor - draw the browser's anchor line.
- */
- BrowserAnchor(dir)
- char *dir;
- {
- register char *p;
- register int i, j, l;
-
- movecursor(0, 0);
- (*term.t_rev)(1);
-
- i = 0;
- l = strlen(dir);
- j = (term.t_ncol-(l+16))/2;
-
- if(Pmaster)
- sprintf(s," PINE %s", Pmaster->pine_version);
- else
- sprintf(s," UW PICO(tm) %s", (gmode&MDBRONLY) ? "BROWSER" : version);
-
- p = s;
- while(*p){
- pputc(*p++, 0);
- i++;
- }
-
- if(l > term.t_ncol - i - 21){ /* fit dir name on line */
- p = dir;
- while((p = strchr(p, C_FILESEP)) != NULL)
- if((l - (p - dir)) <= term.t_ncol - i - 21)
- break;
- else
- p++;
-
- if(*p == '\0') /* no suitable length! */
- p = &dir[l-(term.t_ncol-i-19)];
-
- sprintf(s,"%s Dir ...%s", (gmode&MDBRONLY) ? "" : " BROWSER ", p);
- }
- else
- sprintf(s,"%s Dir: %s", (gmode&MDBRONLY) ? "" : " BROWSER ", dir);
-
- if(i < j) /* keep it centered */
- j = j - i; /* as long as we can */
- else
- j = ((term.t_ncol-i)-(strlen(p)+15))/2;
-
- while(j-- && i++)
- pputc(' ', 0);
- p = s;
-
- while(i++ < term.t_ncol && *p) /* show directory */
- pputc(*p++, 0);
-
- while(i++<term.t_ncol)
- pputc(' ', 0);
-
- (*term.t_rev)(0);
- }
-
-
- /*
- * ResizeBrowser - handle a resize event
- */
- ResizeBrowser()
- {
- if(gmp){
- layoutcells(gmp);
- PaintBrowser(gmp, 0);
- return(1);
- }
- else
- return(0);
- }
-