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Revision 1.1 by greg, Tue Mar 11 19:20:21 2003 UTC vs.
Revision 1.4 by greg, Tue Dec 9 15:59:06 2003 UTC

# Line 1 | Line 1
1 < .\" RCSid "$Id"
1 > .\" RCSid "$Id$"
2   .TH RCALC 1 4/6/99 RADIANCE
3   .SH NAME
4   rcalc - record calculator
# Line 38 | Line 38 | numeric fields separated by tabs.
38   The
39   .I \-tS
40   option is used to specify an alternate tab character.
41 + .PP
42   A
43   .I \-i format
44   option specifies a template for an alternate
# Line 48 | Line 49 | Otherwise, it is interpreted as the name of the file c
49   the format specification.
50   In either case, if the format does not end with a newline, one will be added
51   automatically.
52 + A special form of the
53 + .I \-i
54 + option may be followed immediately by a 'd' or an 'f' and an optional
55 + count, which defaults to 1, indicating the number of double or float
56 + binary values to read per record on the input file.
57 + If binary input is specified, no format string or file is needed.
58 + .PP
59   A
60   .I \-o format
61   option specifies an alternate output record format.
62 < It is interpreted the same as an input specification.
62 > It is interpreted the same as an input specification, except that
63 > the special
64 > .I \-od
65 > or
66 > .I \-of
67 > options do not require a count, as this will be determined by the
68 > number of output channels in the given expressions.
69 > .PP
70   The variable and function definitions in each
71   .I \-f source
72   file are read and compiled.
# Line 65 | Line 80 | The
80   option can be used to assign a string variable a string value.
81   If this string variable appears in an input format, only records
82   with the specified value will be processed.
83 + .PP
84   The
85   .I \-b
86   option instructs the program to accept only exact matches.
# Line 79 | Line 95 | a line, and the end of the format matches the end of a
95   With the
96   .I \-l
97   option, the input format can match anywhere on a line.
98 + .PP
99   The
100   .I \-w
101   option causes non-fatal error messages (such as division by zero) to
# Line 192 | Line 209 | are evaluated.
209   This provides a convenient method for avoiding inappropriate calculations.
210   The following library of pre-defined functions and variables is provided:
211   .TP 10n
212 + .BR "in(n)"
213 + Return the value for input column
214 + .I n,
215 + or the number of columns available in this record if
216 + .I n
217 + is 0.
218 + This is an alternate way to get a column value instead of using
219 + the $N notation, and is more flexible since it is programmable.
220 + This function is disabled if an input format is used.
221 + .TP
222   .BR "if(cond, then, else)"
223   if cond is greater than zero,
224   then is evaluated, otherwise else is evaluated.
# Line 256 | Line 283 | options, not in definitions.
283   .PP
284   Tabs count as single spaces inside fields.
285   .SH "SEE ALSO"
286 < calc(1), cnt(1), ev(1), lam(1), tabfunc(1), total(1)
286 > calc(1), cnt(1), ev(1), getinfo(1), lam(1), tabfunc(1), total(1)

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