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NAME
wncinf -- information about cstream
SYNOPSIS
#include "wncstr.h"
char *wn_cstream_filename(stream)
wn_cstream stream;
wn_set_cstream_filename(stream,name)
wn_cstream stream;
char name[];
int wn_column_of_mark(stream,mark)
wn_cstream stream;
int mark;
int wn_column_of_current_mark(stream)
wn_cstream stream;
int wn_linenum_of_mark(stream,mark)
wn_cstream stream;
int mark;
int wn_linenum_of_current_mark(stream)
wn_cstream stream;
DESCRIPTION
These routines set and get various information about the cstream
"stream". This information can be used to make helpful error
messages if a parse fails.
"wn_cstream_filename" returns the filename for "stream" previously
set by "wn_set_cstream_filename". The default is NULL.
"wn_column_of_mark" returns the number of chars between the closest
previous linefeed and "mark". A linefeed is assumed to exist at
beginning of stream (mark = -1).
"wn_column_of_current_mark" returns the number of chars between the
closest previous linefeed and the current mark. A linefeed is
assumed to exist at beginning of stream (mark = -1).
"wn_linenum_of_mark" returns the number of linefeeds between "mark"
and beginning of stream. Line numbers start at 1.
"wn_linenum_of_current_mark" returns the number of linefeeds
between the current mark and beginning of stream. Line numbers
start at 1.
BUGS
SEE ALSO
wncstr
AUTHOR
Will Naylor
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