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add code to do dynamic message text layout, currently completely disabled.

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This commit is contained in:
cgd 1999-06-23 17:32:32 +00:00
parent d14a108b4c
commit 3788a37507
1 changed files with 124 additions and 2 deletions
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126
usr.bin/msgc/msg_sys.def
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@ -1,4 +1,4 @@
/* $NetBSD: msg_sys.def,v 1.7 1999/06/23 09:19:33 cgd Exp $ */
/* $NetBSD: msg_sys.def,v 1.8 1999/06/23 17:32:32 cgd Exp $ */
/*
* Copyright 1997 Piermont Information Systems Inc.
@ -41,6 +41,11 @@ static char *cbuffer;
static size_t cbuffersize;
static int do_echo = 1;
#if defined(DYNAMIC_MESSAGE_LAYOUT)
static int last_i_was_nl, last_i_was_space;
static int last_o_was_punct, last_o_was_space;
#endif /* defined(DYNAMIC_MESSAGE_LAYOUT) */
/* Routines */
@ -78,6 +83,10 @@ void msg_clear(void)
{
wclear (msg_win);
wrefresh (msg_win);
#if defined(DYNAMIC_MESSAGE_LAYOUT)
last_o_was_punct = 0;
last_o_was_space = 1;
#endif /* defined(DYNAMIC_MESSAGE_LAYOUT) */
}
void msg_standout(void)
@ -92,10 +101,118 @@ void msg_standend(void)
int msg_vprintf (char *fmt, va_list ap)
{
#if defined(DYNAMIC_MESSAGE_LAYOUT)
const char *wstart, *afterw;
int wordlen, nspaces;
#endif /* defined(DYNAMIC_MESSAGE_LAYOUT) */
int ret;
ret = vsnprintf (cbuffer, cbuffersize, fmt, ap);
#if defined(DYNAMIC_MESSAGE_LAYOUT)
for (wstart = afterw = cbuffer; *wstart; wstart = afterw) {
/* eat one space, or a whole word of non-spaces */
if (isspace(*afterw))
afterw++;
else
while (*afterw && !isspace(*afterw))
afterw++;
/* last was an nl, this is an nl: paragraph break */
/* this is an nl: special formatting necessary */
if (*wstart == '\n') {
if (last_i_was_nl || last_i_was_space) {
if (getcurx(msg_win) != 0)
waddch(msg_win, '\n');
if (last_i_was_nl) {
/* last was an nl: paragraph break */
waddch(msg_win, '\n');
} else {
/* last was space: line break */
}
last_o_was_punct = 0;
last_o_was_space = 1;
} else {
/* last_o_was_punct unchanged */
/* last_o_was_space unchanged */
}
last_i_was_space = 1;
last_i_was_nl = 1;
continue;
}
/* this is a tab: special formatting necessary. */
if (*wstart == '\t') {
if (last_i_was_nl) {
/* last was an nl: list indent */
if (getcurx(msg_win) != 0)
waddch(msg_win, '\n');
} else {
/* last was not an nl: columns */
}
waddch(msg_win, '\t');
last_i_was_nl = 0;
last_i_was_space = 1;
last_o_was_punct = 0;
last_o_was_space = 1;
continue;
}
/* this is a space: ignore it but set flags */
last_i_was_nl = 0; /* all newlines handled above */
last_i_was_space = isspace(*wstart);
if (last_i_was_space)
continue;
/*
* we have a real "word," i.e. a sequence of non-space
* characters. wstart is now the start of the word,
* afterw is the next character after the end.
*/
wordlen = afterw - wstart;
nspaces = last_o_was_space ? 0 : (last_o_was_punct ? 2 : 1);
if ((getcurx(msg_win) + nspaces + wordlen) >=
getmaxx(msg_win) &&
wordlen < (getmaxx(msg_win) / 3)) {
/* wrap the line */
waddch(msg_win, '\n');
nspaces = 0;
}
/* output the word, preceded by spaces if necessary */
while (nspaces-- > 0)
waddch(msg_win, ' ');
waddbytes(msg_win, wstart, wordlen);
/* set up the 'last' state for the next time around */
switch (afterw[-1]) {
case '.':
case '?':
case '!':
last_o_was_punct = 1;
break;
default:
last_o_was_punct = 0;
break;
}
last_o_was_space = 0;
/* ... and do it all again! */
}
/* String ended with a newline. They really want a line break. */
if (last_i_was_nl) {
if (getcurx(msg_win) != 0)
waddch(msg_win, '\n');
last_o_was_punct = 0;
last_o_was_space = 1;
}
#else /* defined(DYNAMIC_MESSAGE_LAYOUT) */
waddstr (msg_win, cbuffer);
#endif /* defined(DYNAMIC_MESSAGE_LAYOUT) */
wrefresh (msg_win);
return ret;
}
@ -193,8 +310,13 @@ static void msg_vprompt (char *msg, char *def, char *val, int max_chars,
if (do_echo)
wrefresh(msg_win);
}
if (do_echo)
if (do_echo) {
waddch(msg_win, '\n');
#if defined(DYNAMIC_MESSAGE_LAYOUT)
last_o_was_punct = 0;
last_o_was_space = 1;
#endif /* defined(DYNAMIC_MESSAGE_LAYOUT) */
}
/* copy the appropriate string to the output */
if (count != 0) {