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globsub.m
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1994-01-31
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2KB
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53 lines
/* This is the global substitute command - it simulates the global subst */
/* command found in the New York Word word processor (also sold by MAGMA */
/* SYSTEMS). */
/* You first prepare an external file (called "subs" here) that contains */
/* lines of the form : pattern=sub text */
/* The last line of the file should be a blank line. Then you hit the */
/* <CTRL> G key, and the substitutions are performed. */
/* Written by Marc Adler 8/86 */
init()
{
assign_key("global_sub", 7); /* <CTRL> G */
}
global_sub()
{
string search_pat, sub_text, foo;
int old_buf, sub_buf, i;
save_position();
/* Read in the substitutions */
old_buf = currbuf();
sub_buf = setcurrbuf(create_buffer("subs"));
while ((i = index(currline(), "=")) > 0) /* still a pattern? */
{
/* Isolate both the pattern and the substitution text */
search_pat = substr(currline(), 1, i - 1);
sub_text = substr(currline(), i + 1, strlen(currline()));
/* Uncomment the following line if you want to check the patterns */
/* foo = get_tty_str("srch <%s>, sub <%s>", search_pat, sub_text);*/
/* Go to the original buffer, and perform a forward substitution without */
/* user approval. To get approval, change the 3rd param of fsubst to 1. */
setcurrbuf(old_buf);
gobof();
fsubst(search_pat, sub_text, 0);
/* Go to the substitution buffer and move down to the next pattern. */
setcurrbuf(sub_buf);
if (!down()) break;
}
/* Get rid of the substitution buffer and re-enable the original buffer */
delete_buffer(sub_buf);
setcurrbuf(old_buf);
restore_position();
foo = get_tty_str("Finished with substitutions");
}