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include "display/curses.h"
include "screen.h"
# BOOL_PROMPT -- Get a yes or no response from the user
bool procedure bool_prompt (msg)
char msg[ARB] # i: message to print in the prompt area
#--
int index
pointer sp, resp, msg2
string yorn "|yes|no|"
int strdic()
begin
# Allocate memory for temporary strings
call smark (sp)
call salloc (resp, SZ_FNAME, TY_CHAR)
call salloc (msg2, SZ_LINE, TY_CHAR)
# Prompt the user for a response
call read_prompt (msg, Memc[resp], SZ_FNAME)
call strlwr (Memc[resp])
# See if the response is yes or no,
# if it isn't, keep asking
index = strdic (Memc[resp], Memc[resp], SZ_FNAME, yorn)
while (index == 0) {
call strcpy ("Please answer yes or no. ", Memc[msg2], SZ_LINE)
call strcat (msg, Memc[msg2], SZ_LINE)
call read_prompt (Memc[msg2], Memc[resp], SZ_FNAME)
call strlwr (Memc[resp])
index = strdic (Memc[resp], Memc[resp], SZ_FNAME, yorn)
}
# Convert result into boolean value
call sfree (sp)
return (index == 1)
end
# CLEAR_PROMPT -- Clear the prompt window
procedure clear_prompt (scr)
pointer scr # i: Currently active screen
#--
int win
int prompt_window()
begin
win = prompt_window ()
call werase (win)
if (scr != NULL)
call focus_window (TED_WINDOW(scr))
end
# ERR1_PROMPT -- Write an error message in the prompt area of the screen
procedure err1_prompt (msg)
char msg[ARB] # i: Message to write
#--
begin
call eprintf ("\r\n")
call error (1, msg)
end
# ERR2_PROMPT -- Write two error messages in the prompt area of the screen
procedure err2_prompt (msg1, msg2)
char msg1[ARB] # i: First message to write
char msg2[ARB] # i: Second message to write
#--
pointer msg
begin
call salloc (msg, SZ_LINE, TY_CHAR)
call sprintf (Memc[msg], SZ_LINE, "%s (%s)")
call pargstr (msg1)
call pargstr (msg2)
call eprintf ("\r\n")
call error (1, Memc[msg])
end
# HELP_PROMPT -- Write help message in prompt area
procedure help_prompt (scr, bell)
pointer scr # i: Screen descriptor
int bell # i: Ring the bell after printing message?
#--
pointer sp, exit, msg
string helpfmt "Type %s quit to leave editor, %s help for help."
begin
call smark (sp)
call salloc (exit, SZ_FNAME, TY_CHAR)
call salloc (msg, SZ_LINE, TY_CHAR)
call k_eseq ("EXIT_UPDATE", Memc[exit], SZ_FNAME)
call sprintf (Memc[msg], SZ_LINE, helpfmt)
call pargstr (Memc[exit])
call pargstr (Memc[exit])
call write_prompt (scr, bell, Memc[msg])
call sfree (sp)
end
# READ_PROMPT -- Read a string from the prompt area of the screen
procedure read_prompt (msg, str, maxch)
char msg[ARB] # i: Prompt message
char str[ARB] # o: Output string
int maxch[ARB] # i: Maximum length of output string
#--
char blank
int win
data blank / ' ' /
int prompt_window()
begin
# Write message in prompt window
win = prompt_window ()
call werase (win)
call wmove (win, 2, 1)
call waddstr (win, msg)
call waddch (win, blank)
# Read string from prompt window
call wgetstr (win, str, maxch)
call werase (win)
end
# WARN1_PROMPT -- Write a warning message in the prompt area of the screen
procedure warn1_prompt (scr, msg)
pointer scr # i: Currently active screen
char msg[ARB] # i: Message to write
#--
begin
call write_prompt (scr, YES, msg)
end
# WARN2_PROMPT -- Write two warning messages in the prompt area of the screen
procedure warn2_prompt (scr, msg1, msg2)
pointer scr # i: Currently active screen
char msg1[ARB] # i: First message to write
char msg2[ARB] # i: Second message to write
#--
pointer sp, msg
begin
call smark (sp)
call salloc (msg, SZ_LINE, TY_CHAR)
call sprintf (Memc[msg], SZ_LINE, "%s (%s)")
call pargstr (msg1)
call pargstr (msg2)
call write_prompt (scr, YES, Memc[msg])
call sfree (sp)
end
# WRITE_PROMPT -- Write a message in the prompt area of the screen
procedure write_prompt (scr, bell, msg)
pointer scr # i: Currently active screen
int bell # i: Ring bell after writing message?
char msg[ARB] # i: Message to write
#--
int win
int prompt_window()
begin
# Write message in prompt window
win = prompt_window ()
call werase (win)
call wmove (win, 2, 1)
call waddstr (win, msg)
# Ring the bell to wake up the user
if (bell == YES)
call ring_bell
# Restore cursor to original screen position
if (scr != NULL)
call focus_window (TED_WINDOW(scr))
end
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