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deb-mbse/mbsebbs/fsedit.c
Ken Bowley a27c5983cd added cvs Id tag to fsedit files
2001-10-28 16:48:55 +00:00

806 lines
18 KiB
C
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/*****************************************************************************
* $Id$
*
* File ..................: mbsebbs/fsedit.c
* Purpose ...............: FullScreen Message editor.
* Last modification date : 27-Oct-2001
*
*****************************************************************************
* Copyright (C) 1997-2001
*
* Michiel Broek FIDO: 2:280/2802
* Beekmansbos 10
* 1971 BV IJmuiden
* the Netherlands
*
* This file is part of MBSE BBS.
*
* This BBS is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* MBSE BBS is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MBSE BBS; see the file COPYING. If not, write to the Free
* Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*****************************************************************************/
#include "fsedit.h"
void Show_Ins(void)
{
locate(1, 70);
colour(YELLOW, BLUE);
printf("%s", InsMode ? "INS": "OVR");
fflush(stdout);
}
void Top_Help()
{
locate(1,1);
colour(YELLOW, BLUE);
printf("%s", padleft((char *)"Press ESC for menu, other keys is edit text", 80, ' '));
Show_Ins();
}
void Top_Menu(void)
{
locate(1,1);
colour(WHITE, RED);
printf("%s", padleft((char *)"(A)bort (H)elp (S)ave - Any other key is continue edit", 80, ' '));
fflush(stdout);
}
void Ls(int a, int y)
{
locate(y, 10);
printf("%c ", a ? 179 : '|');
}
void Rs(int a)
{
colour(LIGHTGREEN, BLUE);
printf("%c", a ? 179 : '|');
}
void Ws(int a, int y)
{
int i;
Ls(a, y);
for (i = 0; i < 57; i++)
printf(" ");
Rs(a);
}
void Hl(int a, int y, char *txt)
{
Ls(a, y);
colour(WHITE, BLUE);
printf("%s", padleft(txt, 57, ' '));
Rs(a);
}
void Full_Help(void)
{
int a, i;
a = exitinfo.GraphMode;
colour(LIGHTGREEN, BLUE);
/* Top row */
locate(1, 10);
printf("%c", a ? 213 : '+');
for (i = 0; i < 58; i++)
printf("%c", a ? 205 : '=');
printf("%c", a ? 184 : '+');
Ws(a, 2);
Ls(a, 3);
colour(YELLOW, BLUE);
printf("%s", padleft((char *)" Editor Help", 57, ' '));
Rs(a);
Ws(a, 4);
Hl(a, 5, (char *)"Ctrl-S or LeftArrow - Cursor left");
Hl(a, 6, (char *)"Ctrl-D or RightArrow - Cursor right");
Hl(a, 7, (char *)"Ctrl-E or UpArrow - Cursor up");
Hl(a, 8, (char *)"Ctrl-X or DownArrow - Cursor down");
Hl(a, 9, (char *)"Ctrl-V or Insert - Insert or Overwrite");
Hl(a, 10, (char *)"Ctrl-N - Insert line");
Hl(a, 11, (char *)"Ctrl-Y - Delete line");
Ws(a, 12);
Hl(a, 13, (char *)"Ctrl-L - Refresh screen");
Hl(a, 14, (char *)"Ctrl-R - Read from file");
Ws(a, 15);
locate(16,10);
printf("%c", a ? 212 : '+');
for (i = 0; i < 58; i++)
printf("%c", a ? 205 : '=');
printf("%c", a ? 190 : '+');
fflush(stdout);
}
void Setcursor(void)
{
CurRow = Row + TopVisible - 1;
locate(Row + 1, Col);
fflush(stdout);
}
void Beep(void)
{
printf("\007");
fflush(stdout);
}
/*
* Refresh and rebuild screen in editing mode.
*/
void Refresh(void)
{
int i, j = 2;
clear();
Top_Help();
locate(j,1);
colour(CFG.TextColourF, CFG.TextColourB);
for (i = 1; i <= Line; i++) {
if ((i >= TopVisible) && (i < (TopVisible + exitinfo.iScreenLen -1))) {
locate(j, 1);
j++;
printf("%s", Message[i]);
}
}
Setcursor();
}
void Debug(void)
{
/* Syslog('b', "FSEDIT: Col=%d Row=%d TopVisible=%d Lines=%d CurRow=%d Len=%d", */
/* Col, Row, TopVisible, Line, Row+TopVisible-1, strlen(Message[Row+TopVisible-1])); */
}
void GetstrLC(char *sStr, int iMaxlen)
{
unsigned char ch = 0;
int iPos = 0;
strcpy(sStr, "");
alarm_on();
while (ch != 13) {
fflush(stdout);
ch = Readkey();
if ((ch == 8) || (ch == KEY_DEL) || (ch == 127)) {
if (iPos > 0) {
printf("\b \b");
sStr[--iPos] = '\0';
} else
putchar('\007');
}
if (ch > 31 && ch < 127) {
if (iPos <= iMaxlen) {
iPos++;
sprintf(sStr, "%s%c", sStr, ch);
printf("%c", ch);
} else
putchar('\007');
}
}
printf("\n");
}
void ScrollUp()
{
Syslog('b', "FSEDIT: Scroll up");
if (TopVisible > 12) {
TopVisible -= 12;
Row += 12;
} else {
Row += TopVisible - 1;
TopVisible = 1;
}
Refresh();
/* Debug(); */
}
void ScrollDown()
{
Syslog('b', "FSEDIT: Scroll down");
if ((TopVisible + 12) <= Line) {
Row -= 12;
TopVisible += 12;
}
Refresh();
/* Debug(); */
}
void FsMove(unsigned char Direction)
{
switch (Direction) {
case KEY_RIGHT:
Syslog('b', "FSEDIT: Cursor Right");
Debug();
/*
* FIXME: FsMove KEY_RIGHT
* Handle long lines better.
* For now, we will just refuse to go past col 80
*/
if ((Col <= strlen(Message[CurRow])) && (Col < 80)){
Col++;
Setcursor();
} else if (Row < (Line - TopVisible +1)) {
Row++;
Col = 1;
if (Row > (exitinfo.iScreenLen -1)) ScrollDown();
Refresh();
} else
Beep();
break;
case KEY_LEFT:
Syslog('b', "FSEDIT: Cursor left");
Debug();
if (Col > 1) {
Col--;
Setcursor();
} else if (CurRow > 1) {
Col = strlen(Message[CurRow-1]) +1;
/*
* FIXME: FsMove KEY_LEFT
* Handle long lines better.
* For now, we will just refuse to go past col 80
*/
if (Col > 80) Col = 80;
if (Row == 1) ScrollUp();
Row--;
Setcursor();
} else
Beep();
break;
case KEY_UP:
Syslog('b', "FSEDIT: Cursor up");
Debug();
if (CurRow > 1) {
Row--;
if (Col > strlen(Message[CurRow-1]) + 1)
Col = strlen(Message[CurRow-1]) +1;
if ((Row < 1) && (CurRow != Row))
ScrollUp();
else
Setcursor();
} else
Beep();
break;
case KEY_DOWN:
Syslog('b', "FSEDIT: Cursor down");
Debug();
if (Row < (Line - TopVisible + 1)) {
Row++;
if (Col > strlen(Message[CurRow+1]) + 1)
Col = strlen(Message[CurRow+1]) + 1;
if (Row <= (exitinfo.iScreenLen -1))
Setcursor();
else
ScrollDown();
} else
Beep();
break;
}
}
int FsWordWrap()
{
int WCol, i = 0;
unsigned char tmpLine[80];
tmpLine[0] = '\0';
/*
* FIXME: FsWordWrap
* The word wrap still fails the BIG WORD test
* (BIG WORD = continuous string of characters that spans multiple lines without
* any spaces)
*/
Syslog('b', "FSEDIT: Word Wrap");
WCol = 79;
while (Message[CurRow][WCol] != ' ' && WCol > 0)
WCol--;
if ((WCol > 0) && (WCol < 80)) WCol++; else WCol=80;
if (WCol <= strlen(Message[CurRow])) {
/*
* If WCol = 80 (no spaces in line) be sure to grab character 79.
* Otherwise, drop it, because it's a space.
*/
if ((WCol == 80) || (WCol-1 == Col))
sprintf(tmpLine, "%s%c", tmpLine, Message[CurRow][79]);
/*
* Grab all characters from WCol to end of line.
*/
for (i = WCol; i < strlen(Message[CurRow]); i++) {
sprintf(tmpLine, "%s%c", tmpLine, Message[CurRow][i]);
}
/*
* Truncate current row.
*/
Message[CurRow][WCol-1] = '\0';
/*
* If the wrapped section and the next row will not fit on one line,
* shift all lines down one and use the wrapped section to create a new line.
*
* Otherwise, slap the wrapped section on the front of the next row with
* a space if needed.
*/
if ((strlen(tmpLine) + strlen(Message[CurRow+1])) > 79) {
for (i = Line; i > CurRow; i--)
sprintf(Message[i+1], "%s", Message[i]);
sprintf(Message[CurRow+1], "%s", tmpLine);
Line++;
WCol = strlen(tmpLine) + 1;
} else {
if ((WCol == 80) && (Col >= WCol))
WCol = strlen(tmpLine)+1;
else {
if (tmpLine[strlen(tmpLine)] != ' ')
sprintf(tmpLine, "%s ", tmpLine);
WCol = strlen(tmpLine);
}
sprintf(Message[CurRow+1], "%s", strcat(tmpLine, Message[CurRow+1]));
}
}
return WCol;
}
int Fs_Edit()
{
unsigned char ch;
int i, Changed = FALSE;
char *filname, *tmpname;
FILE *fd;
Syslog('b', "FSEDIT: Entering FullScreen editor");
clear();
fflush(stdout);
if ((ttyfd = open("/dev/tty", O_RDWR|O_NONBLOCK)) < 0) {
WriteError("$Can't open tty");
return FALSE;
}
Setraw();
InsMode = TRUE;
TopVisible = 1;
Col = 1;
Row = 1;
Refresh();
Debug();
while (TRUE) {
Nopper();
alarm_on();
ch = Readkey();
CurRow = Row + TopVisible - 1;
switch (ch) {
case KEY_ENTER:
Syslog('b', "FSEDIT: Enter pressed");
Debug();
if (Col == 1) {
/* Enter at beginning of line */
for (i = Line; i >= CurRow; i--) {
sprintf(Message[i+1], "%s", Message[i]);
}
Message[i+1][0] = '\0';
} else {
for (i = Line; i > CurRow; i--) {
sprintf(Message[i+1], "%s", Message[i]);
}
Message[CurRow+1][0] = '\0';
if (Col <= strlen(Message[CurRow])) {
/* Enter in middle of line */
for (i = Col-1; i <= strlen(Message[CurRow]); i++) {
sprintf(Message[CurRow+1], "%s%c", Message[CurRow+1], Message[CurRow][i]);
}
Message[CurRow][Col-1] = '\0';
}
/* else Enter at end of line */
}
Line++;
Row++;
Col = 1;
if (Row >= (exitinfo.iScreenLen -1)) ScrollDown();
Refresh();
/* Debug(); */
Changed = TRUE;
break;
case ('N' - 64): /* Insert line, scroll down */
Syslog('b', "FSEDIT: Insert line");
Debug();
for (i = Line; i >= CurRow; i--)
sprintf(Message[i+1], "%s", Message[i]);
Message[CurRow][0] = '\0';
Line++;
Col = 1;
Refresh();
/* Debug(); */
Changed = TRUE;
break;
case ('Y' - 64): /* Erase line, scroll up */
Syslog('b', "FSEDIT: Erase line");
Debug();
if (Line == CurRow) {
/* Erasing last line */
if ((Line > 1) || (strlen(Message[CurRow]) > 0)) {
Message[CurRow][0] = '\0';
if (Line > 1) {
Line--;
if (Row == 1) ScrollUp();
Row--;
}
if (Col > strlen(Message[CurRow]))
Col = strlen(Message[CurRow]);
Refresh();
/* Debug(); */
Changed = TRUE;
} else
Beep();
} else {
/* Erasing line in the middle */
for (i = CurRow; i < Line; i++) {
sprintf(Message[i], "%s", Message[i+1]);
}
Message[i+1][0] = '\0';
Line--;
if (Col > strlen(Message[CurRow]) + 1)
Col = strlen(Message[CurRow]) + 1;
Refresh();
/* Debug(); */
Changed = TRUE;
}
break;
case KEY_UP:
case ('E' - 64):
FsMove(KEY_UP);
break;
case KEY_DOWN:
case ('X' - 64):
FsMove(KEY_DOWN);
break;
case KEY_LEFT:
case ('S' - 64):
FsMove(KEY_LEFT);
break;
case KEY_RIGHT:
case ('D' - 64):
FsMove(KEY_RIGHT);
break;
case KEY_DEL:
Syslog('b', "FSEDIT: DEL key");
Debug();
if (Col <= strlen(Message[CurRow])) {
/*
* If before the end of the line...
*/
Setcursor();
for (i = Col; i <= strlen(Message[CurRow]); i++) {
Message[CurRow][i-1] = Message[CurRow][i];
printf("%c", Message[CurRow][i]);
}
printf(" \b");
Message[CurRow][i-1] = '\0';
Setcursor();
} else if (((strlen(Message[CurRow]) + strlen(Message[CurRow+1]) < 75)
|| (strlen(Message[CurRow]) == 0))
&& (CurRow < Line)) {
for (i = 0; i < strlen(Message[CurRow+1]); i++)
sprintf(Message[CurRow], "%s%c", Message[CurRow], Message[CurRow+1][i]);
for (i = CurRow+1; i < Line; i++)
sprintf(Message[i], "%s", Message[i+1]);
Message[Line][0] = '\0';
Line--;
Refresh();
} else
Beep();
/*
* Trap the extra code so it isn't
* inserted in the text
*/
if (ch == KEY_DEL) Readkey();
break;
case KEY_BACKSPACE:
case KEY_RUBOUT:
Syslog('b', "FSEDIT: BS (Backspace)");
Debug();
if (Col == 1 && CurRow == 1) {
/* BS on first character in message */
Beep();
} else if (Col == 1) {
/* BS at beginning of line */
if ((strlen(Message[CurRow-1]) + strlen(Message[CurRow]) < 75)
|| strlen(Message[CurRow]) == 0) {
Col = strlen(Message[CurRow-1]) + 1;
strcat(Message[CurRow-1], Message[CurRow]);
for ( i = CurRow; i < Line; i++)
sprintf(Message[i], "%s", Message[i+1]);
Message[i+1][0] = '\0';
Line--;
if (Row == 1) ScrollUp();
Row--;
Refresh();
/* Debug(); */
Changed = TRUE;
} else {
i = strlen(Message[CurRow-1]) + strlen(Message[CurRow]);
/* Syslog('b', "FSEDIT: BS lines are too big! %d + %d = %d", */
/* strlen(Message[CurRow]), */
/* strlen(Message[CurRow-1]), */
/* i); */
Beep();
}
} else {
if (Col == strlen(Message[CurRow]) + 1) {
/* BS at end of line */
printf("\b \b");
fflush(stdout);
Col--;
Message[CurRow][Col-1] = '\0';
Changed = TRUE;
} else {
/* BS in middle of line */
Col--;
Setcursor();
for (i = Col; i <= strlen(Message[CurRow]); i++) {
Message[CurRow][i-1] = Message[CurRow][i];
printf("%c", Message[CurRow][i]);
}
printf(" \b");
Message[CurRow][strlen(Message[CurRow])] = '\0';
Setcursor();
Changed = TRUE;
}
}
break;
case KEY_INS: /* Toggle Insert Mode */
case ('V' - 64):
InsMode = !InsMode;
Show_Ins();
colour(CFG.TextColourF, CFG.TextColourB);
Setcursor();
Syslog('b', "FSEDIT: InsertMode now %s", InsMode ? "True" : "False");
/*
* Trap the extra code so it isn't
* inserted in the text
*/
if (ch == KEY_INS) Readkey();
break;
case ('L' - 64): /* Refresh screen */
Syslog('b', "FSEDIT: Refresh()");
Refresh();
break;
case ('R' - 64): /* Read from file */
Syslog('b', "FSEDIT: Read from file");
tmpname = calloc(PATH_MAX, sizeof(char));
filname = calloc(PATH_MAX, sizeof(char));
colour(14, 0);
/* Please enter filename: */
printf("\n%s", (char *) Language(245));
colour(CFG.InputColourF, CFG.InputColourB);
GetstrLC(filname, 80);
if ((strcmp(filname, "") == 0)) {
colour(CFG.HiliteF, CFG.HiliteB);
/* No filename entered, aborting */
printf("\n\n%s\n", (char *) Language(246));
Pause();
free(filname);
free(tmpname);
Refresh();
/* Debug(); */
break;
}
if (*(filname) == '/' || *(filname) == ' ') {
colour(CFG.HiliteF, CFG.HiliteB);
/* Illegal filename */
printf("\n\n%s\n", (char *) Language(247));
Pause();
free(tmpname);
free(filname);
Refresh();
/* Debug(); */
break;
}
sprintf(tmpname, "%s/%s/wrk/%s", CFG.bbs_usersdir, exitinfo.Name, filname);
if ((fd = fopen(tmpname, "r")) == NULL) {
WriteError("$Can't open %s", tmpname);
colour(CFG.HiliteF, CFG.HiliteB);
/* File does not exist, please try again */
printf("\n\n%s\n", (char *) Language(296));
Pause();
} else {
while ((fgets(filname, 80, fd)) != NULL) {
for (i = 0; i < strlen(filname); i++) {
if (*(filname + i) == '\0')
break;
if (*(filname + i) == '\n')
*(filname + i) = '\0';
if (*(filname + i) == '\r')
*(filname + i) = '\0';
}
/*
* Make sure that any tear or origin lines are
* made invalid.
*/
if (strncmp(filname, (char *)"--- ", 4) == 0)
filname[1] = 'v';
if (strncmp(filname, (char *)" * Origin:", 10) == 0)
filname[1] = '+';
sprintf(Message[Line], "%s", filname);
Line++;
}
fclose(fd);
Changed = TRUE;
Syslog('+', "FSEDIT: Inserted file %s", tmpname);
}
free(tmpname);
free(filname);
Col = 1;
Refresh();
/* Debug(); */
break;
case KEY_ESCAPE: /* Editor menu */
Syslog('b', "FSEDIT: Escape pressed");
Top_Menu();
ch = toupper(Readkey());
if (ch == 'A' || ch == 'S') {
Syslog('b', "FSEDIT: %s message (%c)", (ch == 'S' && Changed) ? "Saving" : "Aborting", ch);
Unsetraw();
close(ttyfd);
Debug();
clear();
fflush(stdout);
/* for (i = 1; i <= Line; i++) */
/* Syslog('b', "%3d \"%s\"", i, Message[i]); */
if (ch == 'S' && Changed) {
Syslog('+', "FSEDIT: Message saved");
return TRUE;
} else {
Syslog('+', "FSEDIT: Message aborted");
return FALSE;
}
}
if (ch == 'H') {
Syslog('b', "FSEDIT: User wants help");
Full_Help();
ch = Readkey();
Refresh();
} else
Top_Help();
colour(CFG.TextColourF, CFG.TextColourB);
Setcursor();
break;
default:
if (ch > 31 && ch < 127) {
/*
* Normal printable characters
*/
if (Col == strlen(Message[CurRow]) + 1) {
/* Syslog('b', "FSEDIT: Append character to end"); */
/*
* Append to line
*/
sprintf(Message[CurRow], "%s%c", Message[CurRow], ch);
if (strlen(Message[CurRow]) > 79){
Col = FsWordWrap();
Row++;
Refresh();
} else {
Col++;
printf("%c", ch);
fflush(stdout);
}
Changed = TRUE;
} else {
/*
* Insert or overwrite
*/
/* Syslog('b', "FSEDIT: %s in line", */
/* InsMode ? "Insert" : "Overwrite"); */
if (InsMode) {
for (i = strlen(Message[CurRow]); i >= (Col-1); i--) {
/*
* Shift characters right
*/
Message[CurRow][i+1] = Message[CurRow][i];
}
Message[CurRow][Col-1] = ch;
Col++;
if (strlen(Message[CurRow]) > 80) {
i = FsWordWrap();
if (Col > strlen(Message[CurRow])+1) {
Col = Col - strlen(Message[CurRow]);
if (Col > 1) Col--;
Row++;
}
if (Row > (exitinfo.iScreenLen -1))
ScrollDown();
else
Refresh();
} else {
locate(Row + 1, 1);
printf(Message[CurRow]);
Setcursor();
}
Changed = TRUE;
} else {
Message[CurRow][Col-1] = ch;
printf("%c", ch);
fflush(stdout);
Col++;
Changed = TRUE;
}
}
} else
Syslog('b', "FSEDIT: Pressed %d (unsupported)", ch);
}
}
WriteError("FsEdit(): Impossible to be here");
Unsetraw();
close(ttyfd);
return FALSE;
}
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