Ubuntu Manpage: gosh - a Scheme script interpreter

NAME

       gosh - a Scheme script interpreter

SYNOPSIS

       gosh  [-biqV] [-I path ] [-A path ] [-u module ] [-l file ] [-L file ] [-e expr ] [-E expr
       ] [-m module ] [-f flag ] [-F feature ] [-p type ] [-r standard ] [--] [  script  argument
       ...  ]

DESCRIPTION

       Gosh is a stand-alone Scheme interpreter built on top of the Gauche Scheme script engine.

       When  script  is given, gosh loads the script, evaluating Scheme code in it.  Then, if the
       script defines a procedure named main, gosh calls it with a single  argument  which  is  a
       list  of  the  script  name and subsequent arguments.  When main returns an integer value,
       gosh exits with it as an exit code.  If main returns non-integer value,  or  an  error  is
       signaled  during  evaluation,  gosh  exits  with  exit code 70 (EX_SOFTWARE).  See SRFI-22
       (http://srfi.schemers.org/srfi-22/srfi-22.html) for details.  If there's no main procedure
       defined in the script, gosh exits with code 0 after loading the script file.

       If  no script file is given, gosh goes into an interactive mode.  By default, gosh prompts
       the user to enter a Scheme expression, read and evaluates  it,  then  prints  the  result,
       until EOF is read.  If the standard input is not a terminal, however, gosh doesn't print a
       prompt; it allows a user to use gosh as a filter program.  This behavior can be controlled
       by -i or -b option; see below.

OPTIONS

Command line options are processed before loading the script file or entering the
interactive mode.

The options -I, -A, -u, -l, -L, -e and -E are processed in the order of appearance. For
example, adding a load path by -I option affects the -l options after it, but not the ones
before it.

-V Prints gosh version and exits.

-b Batch mode. Doesn't print prompt even the standard input is a terminal. Supersedes
-i.

-i Interactive mode. Forces to print prompt, even the standard input is not a terminal.

-q Prevents reading the default initialization file.

-Ipath
Adds path in front of the load path list.

-Apath
Appends path to the tail of the load path list.

-umodule
Loads and imports module, as if "(use module )" is specified in the code.

-lfile
Loads a Scheme file file.

-Lfile
Like -l, but doesn't complain if file doesn't exist.

-eexpr
Evaluates a Scheme expression expr.

-Eexpr
Same as -e, except that the expr is read as if it is surrounded by parenthesis.

-ptype
Turns on the profiler. Type can be either 'time' or 'load'.

-mmodule
When the script file is given, this option specifies the name of the module in which
the "main" procedure is defined. The default is "user".

-rstandard
Starts gosh with the default environment defined in RnRS, where n is determined by
standard. Currently, only 7 is the valid value of standard.

-fflag
Sets various flags.
case-fold use case-insensitive reader (as in R5RS)
load-verbose report while loading files
include-verbose report while including files
no-inline don't inline primitive procedures and constants
(combined no-inline-globals, no-inline-locals,
and no-inline-constants.)
no-inline-globals don't inline global procedures.
no-inline-locals don't inline local procedures.
no-inline-constants don't inline constants.
no-post-inline-pass don't run post-inline optimization pass.
no-lambda-lifting-pass don't run lambda lifting optimization pass.
no-source-info don't retain source information.
warn-legacy-syntax print warning when legacy Gauche syntax
is encountered.
test assume being run in the build tree; tries to
load files from the current build instead of
installation directories. Useful to test
the build without installation.

-Ffeature
Makes feature available in cond-expand forms.

-- Specifies that there are no more options. If there are more arguments after this,
they are taken as script file name and its arguments.

ENVIRONMENT

       GAUCHE_LOAD_PATH
       A colon separated list of the load paths.
              The paths are appended before the system default load paths.

       GAUCHE_DYNLOAD_PATH
       A colon separated list of the load paths for dynamically loaded
              objects.  The paths are appended before the system default load paths.

AUTHORS