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6 Intrinsic Functions

6.1 $ASCII   Return ASCII code for character in string.
6.2 $CHAR   Return character for one or more ASCII codes.
6.3 $DATA   Retrieve definition and characteristics of array node.
6.4 $EXTRACT   Return a substring of a string.
6.5 $FIND   Find position of substring within string.
6.6 $FNUMBER   Format a number according to formatting codes.
6.7 $GET   Return value of glvn or a default if undefined.
6.8 $INSTANCEOF   Determine if lvn is an instance of a class.
6.9 $JUSTIFY   Right-justify a string based on specified length.
6.10 $LENGTH   Return length or delimiter-based piece count of string.
6.11 $NAME   Return canonical name from string representation of glvn.
6.12 $NEXT   Return next numeric subscript following given glvn.
6.13 $ORDER   Return next subscript at same level of specified glvn.
6.14 $PIECE   Return one or more delimited pieces of a string.
6.15 $QLENGTH   Return subscript count of glvn.
6.16 $QSUBSCRIPT   Return a specified subscript from glvn.
6.17 $QUERY   Return next subscript of specified glvn.
6.18 $RANDOM   Return pseudorandom integer up to a maximum value.
6.19 $REVERSE   Reverse a string.
6.20 $SELECT   Return value from first true condition in list of expressions.
6.21 $STACK   Return information about the program stack.
6.22 $TEXT   Return line of code from a routine.
6.23 $TRANSLATE   Substitute specified characters in a string.
6.24 $TYPE   Return class of the specified lvn.
6.25 $VIEW   Retrieve implementation-specific information.
6.26 $ZBOOLEAN   Perform boolean operations on numeric arguments.
6.27 $ZCALL   Unknown.
6.28 $ZCRC   Generate checksum of a string argument.
6.29 $ZDATA   Unknown.
6.30 $ZDATE   Convert $HOROLOG string into human-readable date.
6.31 $ZEDIT   Unknown.
6.32 $ZHOROLOG   Convert date/time values to $HOROLOG format.
6.33 $ZKEY   Unknown.
6.34 $ZLENGTH   Unknown.
6.35 $ZLSD   Compute Levenshtein distance between two arguments.
6.36 $ZM   Unknown.
6.37 $ZNAME   Unknown.
6.38 $ZNEXT   Unknown.
6.39 $ZORDER   Unknown.
6.40 $ZPIECE   Unknown.
6.41 $ZPREVIOUS   Unknown.
6.42 $ZREPLACE   Replace all instances of a substring within a string.
6.43 $ZSYNTAX   Perform syntax check on string argument.
6.44 $ZTIME   Convert a $HOROLOG string into human-readable time.
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