In a Glulx I7 6G60 project, I wish to eliminate the OOPS function/code. Nobody uses it and it makes a lie of something else I’ve set up where typing ‘O’ should be doing a particular other thing.
I’m already using a hacked version of ‘Reading the Command’ by Victor Gijsbers (it’s part of a scheme to allow hitting Return at a blank prompt to repeat the last command) which I’ll paste below. Thanks:
[code]Include (- [ Keyboard a_buffer a_table nw i w w2 x1 x2;
sline1 = score; sline2 = turns;
while (true) {
! Save the start of the buffer, in case "oops" needs to restore it
for (i=0 : i<64 : i++) oops_workspace->i = a_buffer->i;
! In case of an array entry corruption that shouldn't happen, but would be
! disastrous if it did:
#Ifdef TARGET_ZCODE;
a_buffer->0 = INPUT_BUFFER_LEN;
a_table->0 = 15; ! Allow to split input into this many words
#Endif; ! TARGET_
! Print the prompt, and read in the words and dictionary addresses
PrintPrompt();
DrawStatusLine();
KeyboardPrimitive(a_buffer, a_table);
! Set nw to the number of words
#Ifdef TARGET_ZCODE; nw = a_table->1; #Ifnot; nw = a_table-->0; #Endif;
! If the line was blank, get a fresh line
!if (nw == 0) {
! @push etype; etype = BLANKLINE_PE;
! players_command = 100;
! BeginActivity(PRINTING_A_PARSER_ERROR_ACT);
! if (ForActivity(PRINTING_A_PARSER_ERROR_ACT) == false) L__M(##Miscellany,10);
! EndActivity(PRINTING_A_PARSER_ERROR_ACT);
! @pull etype;
! continue;
!}
! Unless the opening word was OOPS, return
! Conveniently, a_table-->1 is the first word on both the Z-machine and Glulx
w = a_table-->1;
if (w == OOPS1__WD or OOPS2__WD or OOPS3__WD) {
if (oops_from == 0) { L__M(##Miscellany, 14); continue; }
if (nw == 1) { L__M(##Miscellany, 15); continue; }
if (nw > 2) { L__M(##Miscellany, 16); continue; }
! So now we know: there was a previous mistake, and the player has
! attempted to correct a single word of it.
for (i=0 : i<INPUT_BUFFER_LEN : i++) buffer2->i = a_buffer->i;
#Ifdef TARGET_ZCODE;
x1 = a_table->9; ! Start of word following "oops"
x2 = a_table->8; ! Length of word following "oops"
#Ifnot; ! TARGET_GLULX
x1 = a_table-->6; ! Start of word following "oops"
x2 = a_table-->5; ! Length of word following "oops"
#Endif; ! TARGET_
! Repair the buffer to the text that was in it before the "oops"
! was typed:
for (i=0 : i<64 : i++) a_buffer->i = oops_workspace->i;
VM_Tokenise(a_buffer,a_table);
! Work out the position in the buffer of the word to be corrected:
#Ifdef TARGET_ZCODE;
w = a_table->(4*oops_from + 1); ! Start of word to go
w2 = a_table->(4*oops_from); ! Length of word to go
#Ifnot; ! TARGET_GLULX
w = a_table-->(3*oops_from); ! Start of word to go
w2 = a_table-->(3*oops_from - 1); ! Length of word to go
#Endif; ! TARGET_
! Write spaces over the word to be corrected:
for (i=0 : i<w2 : i++) a_buffer->(i+w) = ' ';
if (w2 < x2) {
! If the replacement is longer than the original, move up...
for (i=INPUT_BUFFER_LEN-1 : i>=w+x2 : i-- )
a_buffer->i = a_buffer->(i-x2+w2);
! ...increasing buffer size accordingly.
#Ifdef TARGET_ZCODE;
a_buffer->1 = (a_buffer->1) + (x2-w2);
#Ifnot; ! TARGET_GLULX
a_buffer-->0 = (a_buffer-->0) + (x2-w2);
#Endif; ! TARGET_
}
! Write the correction in:
for (i=0 : i<x2 : i++) a_buffer->(i+w) = buffer2->(i+x1);
VM_Tokenise(a_buffer, a_table);
#Ifdef TARGET_ZCODE; nw = a_table->1; #Ifnot; nw = a_table-->0; #Endif;
return nw;
}
! Undo handling
if ((w == UNDO1__WD or UNDO2__WD or UNDO3__WD) && (nw==1)) {
Perform_Undo();
continue;
}
i = VM_Save_Undo();
#ifdef PREVENT_UNDO; undo_flag = 0; #endif;
#ifndef PREVENT_UNDO; undo_flag = 2; #endif;
if (i == -1) undo_flag = 0;
if (i == 0) undo_flag = 1;
if (i == 2) {
VM_RestoreWindowColours();
VM_Style(SUBHEADER_VMSTY);
SL_Location(); print "^";
! print (name) location, "^";
VM_Style(NORMAL_VMSTY);
L__M(##Miscellany, 13);
continue;
}
return nw;
}
]; -) instead of “Reading the Command” in “Parser.i6t”.[/code]