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CCL programs are called automatically during SXEmacs buffer I/O when the
external representation has a coding system type of shift-jis
,
big5
, or ccl
. The program is specified by the coding
system (see Coding Systems). You can also call CCL programs from
other CCL programs, and from Lisp using these functions:
Execute ccl-program with registers initialized by
status. ccl-program is a vector of compiled CCL code
created by ccl-compile
. It is an error for the program to try to
execute a CCL I/O command. status must be a vector of nine
values, specifying the initial value for the R0, R1 .. R7 registers and
for the instruction counter IC. A nil
value for a register
initializer causes the register to be set to 0. A nil
value for
the IC initializer causes execution to start at the beginning of the
program. When the program is done, status is modified (by
side-effect) to contain the ending values for the corresponding
registers and IC.
Execute ccl-program with initial status on
string. ccl-program is a vector of compiled CCL code
created by ccl-compile
. status must be a vector of nine
values, specifying the initial value for the R0, R1 .. R7 registers and
for the instruction counter IC. A nil
value for a register
initializer causes the register to be set to 0. A nil
value for
the IC initializer causes execution to start at the beginning of the
program. An optional fourth argument continue, if non-nil
, causes
the IC to
remain on the unsatisfied read operation if the program terminates due
to exhaustion of the input buffer. Otherwise the IC is set to the end
of the program. When the program is done, status is modified (by
side-effect) to contain the ending values for the corresponding
registers and IC. Returns the resulting string.
To call a CCL program from another CCL program, it must first be registered:
Register name for CCL program ccl-program in
ccl-program-table
. ccl-program should be the compiled form of
a CCL program, or nil
. Return index number of the registered CCL
program.
Information about the processor time used by the CCL interpreter can be obtained using these functions:
Returns the elapsed processor time of the CCL interpreter as cons of user and system time, as floating point numbers measured in seconds. If only one overall value can be determined, the return value will be a cons of that value and 0.
Resets the CCL interpreter’s internal elapsed time registers.
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