#include <com32.h>
#include <stdlib.h>
-com32sys_t inreg,outreg; // Global register sets for use
+com32sys_t inreg, outreg; // Global register sets for use
char bkspstr[] = " \b$";
char eolstr[] = "\n$";
// If showoldvalue <> 0 then caller responsibility to ensure that
// str is NULL terminated.
void getuserinput(char *stra, unsigned int size, unsigned int password,
- unsigned int showoldvalue)
+ unsigned int showoldvalue)
{
- unsigned char c,scan;
- char *p,*q; // p = current char of string, q = tmp
- char *last; // The current last char of string
- char *str; // pointer to string which is going to be allocated
+ unsigned char c, scan;
+ char *p, *q; // p = current char of string, q = tmp
+ char *last; // The current last char of string
+ char *str; // pointer to string which is going to be allocated
char page;
- char row,col;
- char start,end; // Cursor shape
- char fudge; // How many chars should be removed from output
- char insmode; // Are we in insert or overwrite
+ char row, col;
+ char start, end; // Cursor shape
+ char fudge; // How many chars should be removed from output
+ char insmode; // Are we in insert or overwrite
page = getdisppage();
- getpos(&row,&col,page); // Get current position
- getcursorshape(&start,&end);
+ getpos(&row, &col, page); // Get current position
+ getcursorshape(&start, &end);
insmode = 1;
- str = (char *)malloc(size+1); // Allocate memory to store user input
- memset(str,0,size+1); // Zero it out
- if (password != 0) showoldvalue = 0; // Password's never displayed
+ str = (char *)malloc(size + 1); // Allocate memory to store user input
+ memset(str, 0, size + 1); // Zero it out
+ if (password != 0)
+ showoldvalue = 0; // Password's never displayed
- if (showoldvalue != 0) strcpy(str,stra); // If show old value copy current value
+ if (showoldvalue != 0)
+ strcpy(str, stra); // If show old value copy current value
last = str;
- while (*last) {last++;} // Find the terminating null byte
- p = str+ strlen(str);
+ while (*last) {
+ last++;
+ } // Find the terminating null byte
+ p = str + strlen(str);
if (insmode == 0)
- setcursorshape(1,7); // Block cursor
- else setcursorshape(6,7); // Normal cursor
+ setcursorshape(1, 7); // Block cursor
+ else
+ setcursorshape(6, 7); // Normal cursor
// Invariants: p is the current char
// col is the corresponding column on the screen
- if (password == 0) // Not a password, print initial value
+ if (password == 0) // Not a password, print initial value
{
- gotoxy(row,col,page);
- csprint(str,GETSTRATTR);
+ gotoxy(row, col, page);
+ csprint(str, GETSTRATTR);
}
- while (1) { // Do forever
- c = inputc(&scan);
- if (c == '\r') break; // User hit Enter getout of loop
- if (scan == ESCAPE) // User hit escape getout and nullify string
- { *str = 0;
- break;
- }
- fudge = 0;
- // if scan code is regognized do something
- // else if char code is recognized do something
- // else ignore
- switch(scan) {
- case HOMEKEY:
- p = str;
- break;
- case ENDKEY:
- p = last;
- break;
- case LTARROW:
- if (p > str) p--;
- break;
- case CTRLLT:
- if (p==str) break;
- if (*p == ' ')
- while ((p > str) && (*p == ' ')) p--;
- else {
- if (*(p-1) == ' ') {
- p--;
- while ((p > str) && (*p == ' ')) p--;
- }
- }
- while ((p > str) && ((*p == ' ') || (*(p-1) != ' '))) p--;
- break;
- case RTARROW:
- if (p < last) p++;
- break;
- case CTRLRT:
- if (*p==0) break; // At end of string
- if (*p != ' ')
- while ((*p!=0) && (*p != ' ')) p++;
- while ((*p!=0) && ((*p == ' ') && (*(p+1) != ' '))) p++;
- if (*p==' ') p++;
- break;
- case DELETE:
- q = p;
- while (*(q+1)) {*q = *(q+1); q++; }
- if (last > str) last--;
- fudge = 1;
- break;
- case INSERT:
- insmode = 1-insmode; // Switch mode
- if (insmode == 0)
- setcursorshape(1,7); // Block cursor
- else setcursorshape(6,7); // Normal cursor
- break;
+ while (1) { // Do forever
+ c = inputc(&scan);
+ if (c == '\r')
+ break; // User hit Enter getout of loop
+ if (scan == ESCAPE) // User hit escape getout and nullify string
+ {
+ *str = 0;
+ break;
+ }
+ fudge = 0;
+ // if scan code is regognized do something
+ // else if char code is recognized do something
+ // else ignore
+ switch (scan) {
+ case HOMEKEY:
+ p = str;
+ break;
+ case ENDKEY:
+ p = last;
+ break;
+ case LTARROW:
+ if (p > str)
+ p--;
+ break;
+ case CTRLLT:
+ if (p == str)
+ break;
+ if (*p == ' ')
+ while ((p > str) && (*p == ' '))
+ p--;
+ else {
+ if (*(p - 1) == ' ') {
+ p--;
+ while ((p > str) && (*p == ' '))
+ p--;
+ }
+ }
+ while ((p > str) && ((*p == ' ') || (*(p - 1) != ' ')))
+ p--;
+ break;
+ case RTARROW:
+ if (p < last)
+ p++;
+ break;
+ case CTRLRT:
+ if (*p == 0)
+ break; // At end of string
+ if (*p != ' ')
+ while ((*p != 0) && (*p != ' '))
+ p++;
+ while ((*p != 0) && ((*p == ' ') && (*(p + 1) != ' ')))
+ p++;
+ if (*p == ' ')
+ p++;
+ break;
+ case DELETE:
+ q = p;
+ while (*(q + 1)) {
+ *q = *(q + 1);
+ q++;
+ }
+ if (last > str)
+ last--;
+ fudge = 1;
+ break;
+ case INSERT:
+ insmode = 1 - insmode; // Switch mode
+ if (insmode == 0)
+ setcursorshape(1, 7); // Block cursor
+ else
+ setcursorshape(6, 7); // Normal cursor
+ break;
- default: // Unrecognized scan code, look at the ascii value
- switch (c) {
- case '\b': // Move over by one
- q=p;
- while ( q <= last ) { *(q-1)=*q; q++;}
- if (last > str) last--;
- if (p > str) p--;
- fudge = 1;
- break;
- case '\x15': /* Ctrl-U: kill input */
- fudge = last-str;
- while ( p > str ) *p--=0;
- p = str; *p=0; last = str;
- break;
- default: // Handle insert and overwrite mode
- if ((c >= ' ') && (c < 128) &&
- ((unsigned int)(p-str) < size-1) ) {
- if (insmode == 0) { // Overwrite mode
- if (p==last) last++;
- *last = 0;
- *p++ = c;
- } else { // Insert mode
- if (p==last) { // last char
- last++;
- *last=0;
- *p++=c;
- } else { // Non-last char
- q=last++;
- while (q >= p) { *q=*(q-1); q--;}
- *p++=c;
- }
- }
- }
- else beep();
- }
- break;
+ default: // Unrecognized scan code, look at the ascii value
+ switch (c) {
+ case '\b': // Move over by one
+ q = p;
+ while (q <= last) {
+ *(q - 1) = *q;
+ q++;
+ }
+ if (last > str)
+ last--;
+ if (p > str)
+ p--;
+ fudge = 1;
+ break;
+ case '\x15': /* Ctrl-U: kill input */
+ fudge = last - str;
+ while (p > str)
+ *p-- = 0;
+ p = str;
+ *p = 0;
+ last = str;
+ break;
+ default: // Handle insert and overwrite mode
+ if ((c >= ' ') && (c < 128) &&
+ ((unsigned int)(p - str) < size - 1)) {
+ if (insmode == 0) { // Overwrite mode
+ if (p == last)
+ last++;
+ *last = 0;
+ *p++ = c;
+ } else { // Insert mode
+ if (p == last) { // last char
+ last++;
+ *last = 0;
+ *p++ = c;
+ } else { // Non-last char
+ q = last++;
+ while (q >= p) {
+ *q = *(q - 1);
+ q--;
+ }
+ *p++ = c;
+ }
+ }
+ } else
+ beep();
+ }
+ break;
+ }
+ // Now the string has been modified, print it
+ if (password == 0) {
+ gotoxy(row, col, page);
+ csprint(str, GETSTRATTR);
+ if (fudge > 0)
+ cprint(' ', GETSTRATTR, fudge, page);
+ gotoxy(row, col + (p - str), page);
}
- // Now the string has been modified, print it
- if (password == 0) {
- gotoxy(row,col,page);
- csprint(str,GETSTRATTR);
- if (fudge > 0) cprint(' ',GETSTRATTR,fudge,page);
- gotoxy(row,col+(p-str),page);
- }
- }
+ }
*p = '\0';
- if (password == 0) csprint("\r\n",GETSTRATTR);
- setcursorshape(start,end); // Block cursor
+ if (password == 0)
+ csprint("\r\n", GETSTRATTR);
+ setcursorshape(start, end); // Block cursor
// If user hit ESCAPE so return without any changes
- if (scan != ESCAPE) strcpy(stra,str);
+ if (scan != ESCAPE)
+ strcpy(stra, str);
free(str);
}
/* Print a C string (NUL-terminated) */
-void cswprint(const char *str,char attr,char left)
+void cswprint(const char *str, char attr, char left)
{
char page = getdisppage();
- char newattr=0,cha,chb;
- char row,col;
- char nr,nc;
+ char newattr = 0, cha, chb;
+ char row, col;
+ char nr, nc;
nr = getnumrows();
nc = getnumcols();
- getpos(&row,&col,page);
- while ( *str ) {
- switch (*str)
- {
+ getpos(&row, &col, page);
+ while (*str) {
+ switch (*str) {
case '\b':
- --col;
- break;
+ --col;
+ break;
case '\n':
- ++row;
- col = left;
- break;
+ ++row;
+ col = left;
+ break;
case '\r':
- //col=left;
- break;
- case BELL: // Bell Char
- beep();
- break;
- case CHRELATTR: // change attribute (relatively)
- case CHABSATTR: // change attribute (absolute)
- cha = *(str+1);
- chb = *(str+2);
- if ((((cha >= '0') && (cha <= '9')) ||
- ((cha >= 'A') && (cha <= 'F'))) &&
- (((chb >= '0') && (chb <= '9')) ||
- ((chb >= 'A') && (chb <= 'F')))) // Next two chars are legal
+ //col=left;
+ break;
+ case BELL: // Bell Char
+ beep();
+ break;
+ case CHRELATTR: // change attribute (relatively)
+ case CHABSATTR: // change attribute (absolute)
+ cha = *(str + 1);
+ chb = *(str + 2);
+ if ((((cha >= '0') && (cha <= '9')) || ((cha >= 'A') && (cha <= 'F'))) && (((chb >= '0') && (chb <= '9')) || ((chb >= 'A') && (chb <= 'F')))) // Next two chars are legal
{
- if ((cha >= 'A') && (cha <= 'F'))
- cha = cha - 'A'+10;
- else cha = cha - '0';
- if ((chb >= 'A') && (chb <= 'F'))
- chb = chb - 'A'+10;
- else chb = chb - '0';
- newattr = (cha << 4) + chb;
- attr = (*str == CHABSATTR ? newattr : attr ^ newattr);
- str += 2; // Will be incremented again later
+ if ((cha >= 'A') && (cha <= 'F'))
+ cha = cha - 'A' + 10;
+ else
+ cha = cha - '0';
+ if ((chb >= 'A') && (chb <= 'F'))
+ chb = chb - 'A' + 10;
+ else
+ chb = chb - '0';
+ newattr = (cha << 4) + chb;
+ attr = (*str == CHABSATTR ? newattr : attr ^ newattr);
+ str += 2; // Will be incremented again later
}
- break;
+ break;
default:
- putch(*str, attr, page);
- ++col;
+ putch(*str, attr, page);
+ ++col;
}
- if (col >= nc)
- {
- ++row;
- col=left;
+ if (col >= nc) {
+ ++row;
+ col = left;
}
- if (row > nr)
- {
- scrollup();
- row= nr;
+ if (row > nr) {
+ scrollup();
+ row = nr;
}
- gotoxy(row,col,page);
- str++;
+ gotoxy(row, col, page);
+ str++;
}
}
-void clearwindow(char top, char left, char bot, char right, char page, char fillchar, char fillattr)
+void clearwindow(char top, char left, char bot, char right, char page,
+ char fillchar, char fillattr)
{
char x;
- for (x=top; x < bot+1; x++)
- {
- gotoxy(x,left,page);
- cprint(fillchar,fillattr,right-left+1,page);
+ for (x = top; x < bot + 1; x++) {
+ gotoxy(x, left, page);
+ cprint(fillchar, fillattr, right - left + 1, page);
}
}
void cls(void)
{
- unsigned char dp = getdisppage();
- gotoxy(0,0,dp);
- cprint(' ',GETSTRATTR,(1+getnumrows())*getnumcols(),dp);
+ unsigned char dp = getdisppage();
+ gotoxy(0, 0, dp);
+ cprint(' ', GETSTRATTR, (1 + getnumrows()) * getnumcols(), dp);
}
//////////////////////////////Box Stuff
// This order of numbers must match
// the values of BOX_TOPLEFT,... in the header file
-unsigned char SINSIN_CHARS[] = {218,192,191,217, //Corners
- 196,179, // Horiz and Vertical
- 195,180,194,193,197}; // Connectors & Middle
+unsigned char SINSIN_CHARS[] = { 218, 192, 191, 217, //Corners
+ 196, 179, // Horiz and Vertical
+ 195, 180, 194, 193, 197
+}; // Connectors & Middle
-unsigned char DBLDBL_CHARS[] = {201,200,187,188, // Corners
- 205,186, // Horiz and Vertical
- 199,182,203,202,206}; // Connectors & Middle
+unsigned char DBLDBL_CHARS[] = { 201, 200, 187, 188, // Corners
+ 205, 186, // Horiz and Vertical
+ 199, 182, 203, 202, 206
+}; // Connectors & Middle
-unsigned char SINDBL_CHARS[] = {214,211,183,189, // Corners
- 196,186, // Horiz & Vert
- 199,182,210,208,215}; // Connectors & Middle
+unsigned char SINDBL_CHARS[] = { 214, 211, 183, 189, // Corners
+ 196, 186, // Horiz & Vert
+ 199, 182, 210, 208, 215
+}; // Connectors & Middle
-unsigned char DBLSIN_CHARS[] = {213,212,184,190, // Corners
- 205,179, // Horiz & Vert
- 198,181,209,207,216}; // Connectors & Middle
+unsigned char DBLSIN_CHARS[] = { 213, 212, 184, 190, // Corners
+ 205, 179, // Horiz & Vert
+ 198, 181, 209, 207, 216
+}; // Connectors & Middle
-unsigned char * getboxchars(boxtype bt)
+unsigned char *getboxchars(boxtype bt)
{
- switch (bt)
- {
- case BOX_SINSIN:
- return SINSIN_CHARS;
- break;
- case BOX_DBLDBL:
- return DBLDBL_CHARS;
- break;
- case BOX_SINDBL:
- return SINDBL_CHARS;
- break;
- case BOX_DBLSIN:
- return DBLSIN_CHARS;
- break;
- default:
- return SINSIN_CHARS;
- break;
- }
- return SINSIN_CHARS;
+ switch (bt) {
+ case BOX_SINSIN:
+ return SINSIN_CHARS;
+ break;
+ case BOX_DBLDBL:
+ return DBLDBL_CHARS;
+ break;
+ case BOX_SINDBL:
+ return SINDBL_CHARS;
+ break;
+ case BOX_DBLSIN:
+ return DBLSIN_CHARS;
+ break;
+ default:
+ return SINSIN_CHARS;
+ break;
+ }
+ return SINSIN_CHARS;
}
// Draw box and lines
-void drawbox(char top,char left,char bot, char right,
- char page, char attr,boxtype bt)
+void drawbox(char top, char left, char bot, char right,
+ char page, char attr, boxtype bt)
{
- unsigned char *box_chars; // pointer to array of box chars
- unsigned char x;
+ unsigned char *box_chars; // pointer to array of box chars
+ unsigned char x;
- box_chars = getboxchars(bt);
- // Top border
- gotoxy(top,left,page);
- cprint(box_chars[BOX_TOPLEFT],attr,1,page);
- gotoxy(top,left+1,page);
- cprint(box_chars[BOX_TOP],attr,right-left,page);
- gotoxy(top,right,page);
- cprint(box_chars[BOX_TOPRIGHT],attr,1,page);
- // Bottom border
- gotoxy(bot,left,page);
- cprint(box_chars[BOX_BOTLEFT],attr,1,page);
- gotoxy(bot,left+1,page);
- cprint(box_chars[BOX_BOT],attr,right-left,page);
- gotoxy(bot,right,page);
- cprint(box_chars[BOX_BOTRIGHT],attr,1,page);
- // Left & right borders
- for (x=top+1; x < bot; x++)
- {
- gotoxy(x,left,page);
- cprint(box_chars[BOX_LEFT],attr,1,page);
- gotoxy(x,right,page);
- cprint(box_chars[BOX_RIGHT],attr,1,page);
+ box_chars = getboxchars(bt);
+ // Top border
+ gotoxy(top, left, page);
+ cprint(box_chars[BOX_TOPLEFT], attr, 1, page);
+ gotoxy(top, left + 1, page);
+ cprint(box_chars[BOX_TOP], attr, right - left, page);
+ gotoxy(top, right, page);
+ cprint(box_chars[BOX_TOPRIGHT], attr, 1, page);
+ // Bottom border
+ gotoxy(bot, left, page);
+ cprint(box_chars[BOX_BOTLEFT], attr, 1, page);
+ gotoxy(bot, left + 1, page);
+ cprint(box_chars[BOX_BOT], attr, right - left, page);
+ gotoxy(bot, right, page);
+ cprint(box_chars[BOX_BOTRIGHT], attr, 1, page);
+ // Left & right borders
+ for (x = top + 1; x < bot; x++) {
+ gotoxy(x, left, page);
+ cprint(box_chars[BOX_LEFT], attr, 1, page);
+ gotoxy(x, right, page);
+ cprint(box_chars[BOX_RIGHT], attr, 1, page);
}
}
void drawhorizline(char top, char left, char right, char page, char attr,
- boxtype bt, char dumb)
+ boxtype bt, char dumb)
{
- unsigned char start,end;
- unsigned char *box_chars = getboxchars(bt);
- if (dumb==0) {
- start = left+1;
- end = right-1;
- } else {
- start = left;
- end = right;
- }
- gotoxy(top,start,page);
- cprint(box_chars[BOX_HORIZ],attr,end-start+1,page);
- if (dumb == 0)
- {
- gotoxy(top,left,page);
- cprint(box_chars[BOX_LTRT],attr,1,page);
- gotoxy(top,right,page);
- cprint(box_chars[BOX_RTLT],attr,1,page);
- }
+ unsigned char start, end;
+ unsigned char *box_chars = getboxchars(bt);
+ if (dumb == 0) {
+ start = left + 1;
+ end = right - 1;
+ } else {
+ start = left;
+ end = right;
+ }
+ gotoxy(top, start, page);
+ cprint(box_chars[BOX_HORIZ], attr, end - start + 1, page);
+ if (dumb == 0) {
+ gotoxy(top, left, page);
+ cprint(box_chars[BOX_LTRT], attr, 1, page);
+ gotoxy(top, right, page);
+ cprint(box_chars[BOX_RTLT], attr, 1, page);
+ }
}
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