77 lines
3.7 KiB
Text
77 lines
3.7 KiB
Text
# &keyword # type returned(indicators) - brief description
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# indicators:
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# * - generates multiple values
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# = - modifiable
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# ? - may fail (e.g. status inquiry)
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# U - Unicon
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# G - Icon or Unicon with Graphics
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#
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&allocated # integer(*) - report memory allocated in total and by storage regions
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&ascii # cset - ASCII character set
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&clock # string - time of day
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&col # integer(=G) - column location of pointer
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&collections # integer(*) - garbage collection activity in total and by storage region
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&column # integer(U) - source code column
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&control # null(?G) - control key state
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&cset # cset - universal character set
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¤t # co-expression - current co-expression
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&date # string - today's date
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&dateline # string - time stamp
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&digits # cset - digit characters
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&dump # integer(=) - termination dump
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&e # real - natural log e
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&error # integer(=) - enable/disable error conversion/fail on error
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&errno # integer(?) - variable containing error number from previous posix command
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&errornumber # integer(?) - error number of last error converted to failure
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&errortext # string(?) - error message of last error converted to failure
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&errorvalue # any(?) - erroneous value of last error converted to failure
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&errout # file - standard error file
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&eventcode # integer(=U) - program execution event in monitored program
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&eventsource # co-expression(=U) - source of events in monitoring program
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&eventvalue # any(=U) - value from event in monitored program
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&fail # none - always fails
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&features # string(*) - identifying features in this version of Icon/Unicon
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&file # string - current source file
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&host # string - host machine name
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&input # file - standard input file
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&interval # integer(G) - time between input events
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&lcase # cset - lowercase letters
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&ldrag # integer(G) - left button drag
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&letters # cset - letters
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&level # integer - call depth
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&line # integer - current source line number
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&lpress # integer(G) - left button press
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&lrelease # integer(G) - left button release
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&main # co-expression - main task
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&mdrag # integer(G) - middle button drag
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&meta # null(?G) - meta key state
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&mpress # integer(G) - middle button press
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&mrelease # integer(G) - middle button release
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&now # integer(U) - current time
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&null # null - null value
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&output # file - standard output file
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&pick # string (U) - variable containing the result of 3D selection
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&phi # real - golden ratio
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&pos # integer(=) - string scanning position
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&progname # string(=) - program name
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&random # integer(=) - random number seed
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&rdrag # integer(G) - right button drag
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®ions # integer(*) - region sizes
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&resize # integer(G) - window resize
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&row # integer(=G) - row location of pointer
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&rpress # integer(G) - right button press
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&rrelease # integer(G) - right button release
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&shift # null(?G) - shift key state
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&source # co-expression - invoking co-expression
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&storage # integer(*) - memory in use in each region
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&subject # string - string scanning subject
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&syserr # integer - halt on system error
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&time # integer(=) - elapsed time in milliseconds
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&trace # integer(=) - trace program
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&ucase # cset - upper case letters
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&version # string - version
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&window # window(=G) - the current graphics rendering window
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&x # integer(=G) - pointer horizontal position
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&y # integer(=G) - pointer vertical position
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# keywords may also fail if the corresponding feature is not present.
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# Other variants of Icon (e.g. MT-Icon) will have different mixes of keywords.
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