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st: RE: Problem parsing strings that contain "$CHAR"
From
"Nick Cox" <[email protected]>
To
<[email protected]>
Subject
st: RE: Problem parsing strings that contain "$CHAR"
Date
Tue, 20 Apr 2010 20:10:47 +0100
Try using \$ to indicate literal $ characters.
Nick
[email protected]
[email protected]
I have to parse the lines of SAS syntax files that contain 1) the
position of a variable in a raw data file, 2) the name of the variable,
and 3) the data type of the variable. Examples of such lines are:
@04075 Variable_B $5.
@04080 Variable_C $CHAR6.
Both "$#" and "$CHAR#" mean that the variable is a string variable of #
characters. I have no problem parsing the first line above, but am
looking for advice on what to do with lines that contain a sequence like
"$CHAR6". Such sequences appear to be evaluated first and before the
string is parsed, and results in "", as in below:
. loc line @04080 Variable_C $CHAR6.
. di "`line'"
@04080 Variable_C .
Commands like regexm and tokenize or functions like subinstr also see
"." instead of "$CHAR6.", making it impossible (for me at least) to
retrieve all the relevant information in these lines.
Wednesday 9 June, 11.30 am Staff/Student photograph
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