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-{\rtf1\ansi\ansicpg1252\cocoartf949\cocoasubrtf460
-{\fonttbl\f0\fmodern\fcharset0 Courier;}
-{\colortbl;\red255\green255\blue255;}
-\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\sl264\slmult1\ql\qnatural\pardirnatural
-
-\f0\fs28 \cf0 Value expressions are an expression language used by Ledger to\
-calculate values used by the program for many different purposes:\
-\
-@enumerate\
-@item\
-The values displayed in reports\
-@item\
-For predicates (where truth is anything non-zero), to determine which\
-postings are calculated (@option\{-l\}) or displayed (@option\{-d\}).\
-@item\
-For sorting criteria, to yield the sort key.\
-@item\
-In the matching criteria used by automated postings.\
-@end enumerate\
-\
-Value expressions support most simple math and logic operators, in\
-addition to a set of one letter functions and variables.  A function's\
-argument is whatever follows it.  The following is a display predicate\
-that I use with the @command\{balance\} command:\
-\
-@example\
-ledger -d /^Liabilities/?T<0:UT>100 balance\
-@end example\
-\
-The effect is that account totals are displayed only if: 1) A\
-Liabilities account has a total less than zero; or 2) the absolute\
-value of the account's total exceeds 100 units of whatever commodity\
-contains.  If it contains multiple commodities, only one of them must\
-exceed 100 units.\
-\
-Display predicates are also very handy with register reports, to\
-constrain which transactions are printed.  For example, the following\
-command shows only transactions from the beginning of the current month,\
-while still calculating the running balance based on all transactions:\
-\
-@example\
-ledger -d "d>[this month]" register checking\
-@end example\
-\
-This advantage to this command's complexity is that it prints the\
-running total in terms of all transactions in the register.  The following,\
-simpler command is similar, but totals only the displayed\
-postings:\
-\
-@example\
-ledger -b "this month" register checking\
-@end example}
-\ No newline at end of file