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# Copyright 2001, 2002 Dave Abrahams
# Copyright 2002, 2003, 2004, 2005 Vladimir Prus
# Copyright 2008 Jurko Gospodnetic
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
import "class" : is-instance ;
# For all elements of 'list' which do not already have 'suffix', add 'suffix'.
#
rule apply-default-suffix ( suffix : list * )
{
local result ;
for local i in $(list)
{
if $(i:S) = $(suffix)
{
result += $(i) ;
}
else
{
result += $(i)$(suffix) ;
}
}
return $(result) ;
}
# If 'name' contains a dot, returns the part before the last dot. If 'name'
# contains no dot, returns it unmodified.
#
rule basename ( name )
{
if $(name:S)
{
name = $(name:B) ;
}
return $(name) ;
}
# Return the file of the caller of the rule that called caller-file.
#
rule caller-file ( )
{
local bt = [ BACKTRACE ] ;
return $(bt[9]) ;
}
# Tests if 'a' is equal to 'b'. If 'a' is a class instance, calls its 'equal'
# method. Uses ordinary jam's comparison otherwise.
#
rule equal ( a b )
{
if [ is-instance $(a) ]
{
return [ $(a).equal $(b) ] ;
}
else
{
if $(a) = $(b)
{
return true ;
}
}
}
# Tests if 'a' is less than 'b'. If 'a' is a class instance, calls its 'less'
# method. Uses ordinary jam's comparison otherwise.
#
rule less ( a b )
{
if [ is-instance $(a) ]
{
return [ $(a).less $(b) ] ;
}
else
{
if $(a) < $(b)
{
return true ;
}
}
}
# Returns the textual representation of argument. If it is a class instance,
# class its 'str' method. Otherwise, returns the argument.
#
rule str ( value )
{
if [ is-instance $(value) ]
{
return [ $(value).str ] ;
}
else
{
return $(value) ;
}
}
# Accepts a list of gristed values and returns them ungristed. Reports an error
# in case any of the passed parameters is not gristed, i.e. surrounded in angle
# brackets < and >.
#
rule ungrist ( names * )
{
local result ;
for local name in $(names)
{
local stripped = [ MATCH ^<(.*)>$ : $(name) ] ;
if ! $(stripped)-defined
{
import errors ;
local quoted-names = \"$(names)\" ;
errors.error "in" ungrist "$(quoted-names:J= ):" \"$(name)\" is not
of the form <.*> ;
}
result += $(stripped) ;
}
return $(result) ;
}
# If the passed value is quoted, unquotes it. Otherwise returns the value
# unchanged.
#
rule unquote ( value ? )
{
local match-result = [ MATCH ^(\")(.*)(\")$ : $(value) ] ;
if $(match-result)
{
return $(match-result[2]) ;
}
else
{
return $(value) ;
}
}
rule __test__ ( )
{
import assert ;
import "class" : new ;
import errors : try catch ;
assert.result 123 : str 123 ;
class test-class__
{
rule __init__ ( ) { }
rule str ( ) { return "str-test-class" ; }
rule less ( a ) { return "yes, of course!" ; }
rule equal ( a ) { return "not sure" ; }
}
assert.result "str-test-class" : str [ new test-class__ ] ;
assert.true less 1 2 ;
assert.false less 2 1 ;
assert.result "yes, of course!" : less [ new test-class__ ] 1 ;
assert.true equal 1 1 ;
assert.false equal 1 2 ;
assert.result "not sure" : equal [ new test-class__ ] 1 ;
assert.result foo.lib foo.lib : apply-default-suffix .lib : foo.lib foo.lib
;
assert.result foo : basename foo ;
assert.result foo : basename foo.so ;
assert.result foo.so : basename foo.so.1 ;
assert.result : unquote ;
assert.result "" : unquote "" ;
assert.result "" : unquote \"\" ;
assert.result \" : unquote \"\"\" ;
assert.result \"\" : unquote \"\"\"\" ;
assert.result foo : unquote foo ;
assert.result \"foo : unquote \"foo ;
assert.result foo\" : unquote foo\" ;
assert.result foo : unquote \"foo\" ;
assert.result \"foo\" : unquote \"\"foo\"\" ;
assert.result : ungrist ;
assert.result "" : ungrist <> ;
assert.result foo : ungrist <foo> ;
assert.result <foo> : ungrist <<foo>> ;
assert.result foo bar : ungrist <foo> <bar> ;
try ;
{
ungrist "" ;
}
catch "in" ungrist "\"\":" \"\" is not of the form <.*> ;
try ;
{
ungrist foo ;
}
catch "in" ungrist "\"foo\":" \"foo\" is not of the form <.*> ;
try ;
{
ungrist <foo ;
}
catch "in" ungrist "\"<foo\":" \"<foo\" is not of the form <.*> ;
try ;
{
ungrist foo> ;
}
catch "in" ungrist "\"foo>\":" \"foo>\" is not of the form <.*> ;
try ;
{
ungrist foo bar ;
}
catch "in" ungrist "\"foo\" "\"bar\"":" \"foo\" is not of the form <.*> ;
try ;
{
ungrist foo <bar> ;
}
catch "in" ungrist "\"foo\" "\"<bar>\"":" \"foo\" is not of the form <.*> ;
try ;
{
ungrist <foo> bar ;
}
catch "in" ungrist "\"<foo>\" "\"bar\"":" \"bar\" is not of the form <.*> ;
}
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