1ol(1)                       General Commands Manual                      ol(1)
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NAME

6       ol - an Owl Lisp compiler and interpreter
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SYNOPSIS

9       ol [options] [path] ...
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DESCRIPTION

12       Owl  Lisp is a purely functional variant of R7RS Scheme. Ol can be used
13       to evaluate programs interactively and compile them to native  binaries
14       via C.
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OPTIONS

17       This  program  follows  the  usual  GNU  command line syntax, with long
18       options starting with two dashes (`-').  A summary of essential command
19       line  flats  options  is included below.  The complete list is shown on
20       the help page.
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22       -h, --help
23              Show summary of options.
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25       -v, --version
26              Show version of program.
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28       -e, --eval string
29              Evaluate the string, print it's value, and exit  with  0  unless
30              errors occurred.
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32       -t, --test string
33              Evaluate the string and exit with 1 if the value is #false, 0 if
34              it's true, or 126 if there is an error.
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36       -o, --output output-file
37              Compile the given file to fasl or C code, and save the result to
38              the given output file.
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40       -r, --run path
41              Load the file silently, and call the last value with the remain‐
42              ing command line arguments.
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44       -x, --output-format format
45              Choose what ol should compile the given input to. Valid  options
46              are currently c and fasl. This is normally deduced from the file
47              suffix given in -o, and is thus not usually needed.
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49       -O0, -O1, -O2
50              Write plain bytecode, compile some  common  functions  to  C  or
51              everything possible. These only make sense when compiling to C.
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53       -l, --load path
54              Resume execution of program state saved with suspend.
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EXAMPLES

57       Make a simple binary
58               $ echo '(lambda (args) (for-each print args))' > test.l
59               $ ol -o test.c test.l
60               $ gcc -o test test.c
61               $ ./test foo bar
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63       Compile in a pipe
64              $  echo '(lambda (args) (print (cons "I got " args)))' | ol -x c
65              -o - | gcc -x c -o test - && ./test 11 22 33
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67       Loading vs running files
68               $ echo '(print "Hello, world!")' > test.l
69               $ ol test.l
70               Hello, world!
71               $ echo '(lambda (args) (print "Hello, world!"))' > test.l
72               $ ol --run test.l arg1 arg2 arg3
73               Hello, world!
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SEE ALSO

76       ovm(1),gcc(1),scheme48(1).
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AUTHOR

79       Owl  Lisp  and  this  manual   page   were   written   by   Aki   Helin
80       <aki.helin@iki.fi>.
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84                                 May 31, 2018                            ol(1)