969 lines
45 KiB
Text
969 lines
45 KiB
Text
# ----------------------------------------------------------------------------
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#
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# GNU Make Standard Library (GMSL)
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#
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# A library of functions to be used with GNU Make's $(call) that
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# provides functionality not available in standard GNU Make.
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#
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# Copyright (c) 2005-2022 John Graham-Cumming
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#
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# This file is part of GMSL
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# Neither the name of the John Graham-Cumming nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# ----------------------------------------------------------------------------
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# This is the GNU Make Standard Library version number as a list with
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# three items: major, minor, revision
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gmsl_version := 1 2 0
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__gmsl_name := GNU Make Standard Library
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# Used to output warnings and error from the library, it's possible to
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# disable any warnings or errors by overriding these definitions
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# manually or by setting GMSL_NO_WARNINGS or GMSL_NO_ERRORS
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ifdef GMSL_NO_WARNINGS
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__gmsl_warning :=
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else
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__gmsl_warning = $(if $1,$(warning $(__gmsl_name): $1))
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endif
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ifdef GMSL_NO_ERRORS
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__gmsl_error :=
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else
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__gmsl_error = $(if $1,$(error $(__gmsl_name): $1))
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endif
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# If GMSL_TRACE is enabled then calls to the library functions are
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# traced to stdout using warning messages with their arguments
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ifdef GMSL_TRACE
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__gmsl_tr1 = $(warning $0('$1'))
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__gmsl_tr2 = $(warning $0('$1','$2'))
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__gmsl_tr3 = $(warning $0('$1','$2','$3'))
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else
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__gmsl_tr1 :=
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__gmsl_tr2 :=
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__gmsl_tr3 :=
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endif
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# See if spaces are valid in variable names (this was the case until
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# GNU Make 3.82)
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ifeq ($(MAKE_VERSION),3.82)
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__gmsl_spaced_vars := $(false)
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else
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__gmsl_spaced_vars := $(true)
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endif
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# Figure out whether we have $(eval) or not (GNU Make 3.80 and above)
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# if we do not then output a warning message, if we do then some
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# functions will be enabled.
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__gmsl_have_eval := $(false)
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__gmsl_ignore := $(eval __gmsl_have_eval := $(true))
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# If this is being run with Electric Cloud's emake then warn that
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# their $(eval) support is incomplete in 1.x, 2.x, 3.x, 4.x and 5.0,
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# 5.1, 5.2 and 5.3
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ifdef ECLOUD_BUILD_ID
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__gmsl_emake_major := $(word 1,$(subst ., ,$(EMAKE_VERSION)))
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__gmsl_emake_minor := $(word 2,$(subst ., ,$(EMAKE_VERSION)))
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ifneq ("$(findstring $(__gmsl_emake_major),1 2 3 4)$(findstring $(__gmsl_emake_major)$(__gmsl_emake_minor),50 51 52 53)","")
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$(warning You are using a version of Electric Cloud's emake which has incomplete $$(eval) support)
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__gmsl_have_eval := $(false)
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endif
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endif
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# See if we have $(lastword) (GNU Make 3.81 and above)
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__gmsl_have_lastword := $(lastword $(false) $(true))
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# See if we have native or and and (GNU Make 3.81 and above)
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__or_tt := /$(or $(true),$(true))/$(or $(true),$(false))/$(or $(false),$(true))/$(or $(false),$(false))/
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__and_tt := /$(and $(true),$(true))/$(and $(true),$(false))/$(and $(false),$(true))/$(and $(false),$(false))/
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__gmsl_have_or := $(if $(filter /T/T/T//,$(__or_tt)),$(true),$(false))
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__gmsl_have_and := $(if $(filter /T////,$(__and_tt)),$(true),$(false))
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ifneq ($(__gmsl_have_eval),$(true))
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$(call __gmsl_warning,Your make version $(MAKE_VERSION) does not support $$$$(eval): some functions disabled)
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endif
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__gmsl_dollar := $$
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__gmsl_hash := \#
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# ----------------------------------------------------------------------------
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# ----------------------------------------------------------------------------
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# Function: gmsl_compatible
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# Arguments: List containing the desired library version number (maj min rev)
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# Returns: $(true) if this version of the library is compatible
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# with the requested version number, otherwise $(false)
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# ----------------------------------------------------------------------------
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gmsl_compatible = $(strip \
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$(if $(call gt,$(word 1,$1),$(word 1,$(gmsl_version))), \
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$(false), \
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$(if $(call lt,$(word 1,$1),$(word 1,$(gmsl_version))), \
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$(true), \
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$(if $(call gt,$(word 2,$1),$(word 2,$(gmsl_version))), \
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$(false), \
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$(if $(call lt,$(word 2,$1),$(word 2,$(gmsl_version))), \
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$(true), \
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$(call lte,$(word 3,$1),$(word 3,$(gmsl_version))))))))
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# ###########################################################################
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# LOGICAL OPERATORS
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# ###########################################################################
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# not is defined in gmsl
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# ----------------------------------------------------------------------------
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# Function: and
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# Arguments: Two boolean values
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# Returns: Returns $(true) if both of the booleans are true
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# ----------------------------------------------------------------------------
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ifneq ($(__gmsl_have_and),$(true))
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and = $(__gmsl_tr2)$(if $1,$(if $2,$(true),$(false)),$(false))
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endif
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# ----------------------------------------------------------------------------
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# Function: or
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# Arguments: Two boolean values
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# Returns: Returns $(true) if either of the booleans is true
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# ----------------------------------------------------------------------------
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ifneq ($(__gmsl_have_or),$(true))
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or = $(__gmsl_tr2)$(if $1$2,$(true),$(false))
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endif
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# ----------------------------------------------------------------------------
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# Function: xor
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# Arguments: Two boolean values
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# Returns: Returns $(true) if exactly one of the booleans is true
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# ----------------------------------------------------------------------------
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xor = $(__gmsl_tr2)$(if $1,$(if $2,$(false),$(true)),$(if $2,$(true),$(false)))
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# ----------------------------------------------------------------------------
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# Function: nand
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# Arguments: Two boolean values
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# Returns: Returns value of 'not and'
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# ----------------------------------------------------------------------------
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nand = $(__gmsl_tr2)$(if $1,$(if $2,$(false),$(true)),$(true))
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# ----------------------------------------------------------------------------
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# Function: nor
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# Arguments: Two boolean values
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# Returns: Returns value of 'not or'
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# ----------------------------------------------------------------------------
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nor = $(__gmsl_tr2)$(if $1$2,$(false),$(true))
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# ----------------------------------------------------------------------------
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# Function: xnor
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# Arguments: Two boolean values
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# Returns: Returns value of 'not xor'
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# ----------------------------------------------------------------------------
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xnor =$(__gmsl_tr2)$(if $1,$(if $2,$(true),$(false)),$(if $2,$(false),$(true)))
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# ###########################################################################
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# LIST MANIPULATION FUNCTIONS
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# ###########################################################################
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# ----------------------------------------------------------------------------
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# Function: first (same as LISP's car, or head)
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# Arguments: 1: A list
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# Returns: Returns the first element of a list
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# ----------------------------------------------------------------------------
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first = $(__gmsl_tr1)$(firstword $1)
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# ----------------------------------------------------------------------------
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# Function: last
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# Arguments: 1: A list
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# Returns: Returns the last element of a list
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# ----------------------------------------------------------------------------
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ifeq ($(__gmsl_have_lastword),$(true))
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last = $(__gmsl_tr1)$(lastword $1)
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else
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last = $(__gmsl_tr1)$(if $1,$(word $(words $1),$1))
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endif
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# ----------------------------------------------------------------------------
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# Function: rest (same as LISP's cdr, or tail)
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# Arguments: 1: A list
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# Returns: Returns the list with the first element removed
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# ----------------------------------------------------------------------------
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rest = $(__gmsl_tr1)$(wordlist 2,$(words $1),$1)
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# ----------------------------------------------------------------------------
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# Function: chop
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# Arguments: 1: A list
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# Returns: Returns the list with the last element removed
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# ----------------------------------------------------------------------------
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chop = $(__gmsl_tr1)$(wordlist 2,$(words $1),x $1)
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# ----------------------------------------------------------------------------
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# Function: map
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# Arguments: 1: Name of function to $(call) for each element of list
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# 2: List to iterate over calling the function in 1
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# Returns: The list after calling the function on each element
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# ----------------------------------------------------------------------------
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map = $(__gmsl_tr2)$(strip $(foreach a,$2,$(call $1,$a)))
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# ----------------------------------------------------------------------------
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# Function: pairmap
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# Arguments: 1: Name of function to $(call) for each pair of elements
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# 2: List to iterate over calling the function in 1
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# 3: Second list to iterate over calling the function in 1
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# Returns: The list after calling the function on each pair of elements
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# ----------------------------------------------------------------------------
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pairmap = $(strip $(__gmsl_tr3)\
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$(if $2$3,$(call $1,$(call first,$2),$(call first,$3)) \
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$(call pairmap,$1,$(call rest,$2),$(call rest,$3))))
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# ----------------------------------------------------------------------------
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# Function: leq
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# Arguments: 1: A list to compare against...
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# 2: ...this list
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# Returns: Returns $(true) if the two lists are identical
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# ----------------------------------------------------------------------------
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leq = $(__gmsl_tr2)$(strip $(if $(call seq,$(words $1),$(words $2)), \
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$(call __gmsl_list_equal,$1,$2),$(false)))
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__gmsl_list_equal = $(if $(strip $1), \
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$(if $(call seq,$(call first,$1),$(call first,$2)), \
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$(call __gmsl_list_equal, \
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$(call rest,$1), \
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$(call rest,$2)), \
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$(false)), \
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$(true))
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# ----------------------------------------------------------------------------
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# Function: lne
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# Arguments: 1: A list to compare against...
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# 2: ...this list
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# Returns: Returns $(true) if the two lists are different
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# ----------------------------------------------------------------------------
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lne = $(__gmsl_tr2)$(call not,$(call leq,$1,$2))
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# ----------------------------------------------------------------------------
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# Function: reverse
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# Arguments: 1: A list to reverse
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# Returns: The list with its elements in reverse order
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# ----------------------------------------------------------------------------
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reverse =$(__gmsl_tr1)$(strip $(if $1,$(call reverse,$(call rest,$1)) \
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$(call first,$1)))
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# ----------------------------------------------------------------------------
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# Function: uniq
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# Arguments: 1: A list from which to remove repeated elements
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# Returns: The list with duplicate elements removed without reordering
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# ----------------------------------------------------------------------------
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uniq = $(strip $(__gmsl_tr1) $(if $1,$(firstword $1) \
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$(call uniq,$(filter-out $(firstword $1),$1))))
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# ----------------------------------------------------------------------------
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# Function: length
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# Arguments: 1: A list
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# Returns: The number of elements in the list
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# ----------------------------------------------------------------------------
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length = $(__gmsl_tr1)$(words $1)
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# ###########################################################################
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# STRING MANIPULATION FUNCTIONS
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# ###########################################################################
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# Helper function that translates any GNU Make 'true' value (i.e. a
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# non-empty string) to our $(true)
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__gmsl_make_bool = $(if $(strip $1),$(true),$(false))
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# ----------------------------------------------------------------------------
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# Function: seq
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# Arguments: 1: A string to compare against...
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# 2: ...this string
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# Returns: Returns $(true) if the two strings are identical
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# ----------------------------------------------------------------------------
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seq = $(__gmsl_tr2)$(if $(subst x$1,,x$2)$(subst x$2,,x$1),$(false),$(true))
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# ----------------------------------------------------------------------------
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# Function: sne
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# Arguments: 1: A string to compare against...
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# 2: ...this string
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# Returns: Returns $(true) if the two strings are not the same
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# ----------------------------------------------------------------------------
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sne = $(__gmsl_tr2)$(call not,$(call seq,$1,$2))
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# ----------------------------------------------------------------------------
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# Function: split
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# Arguments: 1: The character to split on
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# 2: A string to split
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# Returns: Splits a string into a list separated by spaces at the split
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# character in the first argument
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# ----------------------------------------------------------------------------
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split = $(__gmsl_tr2)$(strip $(subst $1, ,$2))
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# ----------------------------------------------------------------------------
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# Function: merge
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# Arguments: 1: The character to put between fields
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# 2: A list to merge into a string
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# Returns: Merges a list into a single string, list elements are separated
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# by the character in the first argument
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# ----------------------------------------------------------------------------
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merge = $(__gmsl_tr2)$(strip $(if $2, \
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$(if $(call seq,1,$(words $2)), \
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$2,$(call first,$2)$1$(call merge,$1,$(call rest,$2)))))
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ifdef __gmsl_have_eval
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# ----------------------------------------------------------------------------
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# Function: tr
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# Arguments: 1: The list of characters to translate from
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# 2: The list of characters to translate to
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# 3: The text to translate
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# Returns: Returns the text after translating characters
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# ----------------------------------------------------------------------------
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tr = $(strip $(__gmsl_tr3)$(call assert_no_dollar,$0,$1$2$3) \
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$(eval __gmsl_t := $3) \
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$(foreach c, \
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$(join $(addsuffix :,$1),$2), \
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$(eval __gmsl_t := \
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$(subst $(word 1,$(subst :, ,$c)),$(word 2,$(subst :, ,$c)), \
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$(__gmsl_t))))$(__gmsl_t))
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# Common character classes for use with the tr function. Each of
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# these is actually a variable declaration and must be wrapped with
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# $() or ${} to be used.
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[A-Z] := A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #
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[a-z] := a b c d e f g h i j k l m n o p q r s t u v w x y z #
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[0-9] := 0 1 2 3 4 5 6 7 8 9 #
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[A-F] := A B C D E F #
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# ----------------------------------------------------------------------------
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# Function: uc
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# Arguments: 1: Text to upper case
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# Returns: Returns the text in upper case
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# ----------------------------------------------------------------------------
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uc = $(__gmsl_tr1)$(call assert_no_dollar,$0,$1)$(call tr,$([a-z]),$([A-Z]),$1)
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# ----------------------------------------------------------------------------
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# Function: lc
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# Arguments: 1: Text to lower case
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# Returns: Returns the text in lower case
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# ----------------------------------------------------------------------------
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lc = $(__gmsl_tr1)$(call assert_no_dollar,$0,$1)$(call tr,$([A-Z]),$([a-z]),$1)
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# ----------------------------------------------------------------------------
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# Function: strlen
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# Arguments: 1: A string
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# Returns: Returns the length of the string
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# ----------------------------------------------------------------------------
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# This results in __gmsl_tab containing a tab
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__gmsl_tab := #
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__gmsl_characters := A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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__gmsl_characters += a b c d e f g h i j k l m n o p q r s t u v w x y z
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__gmsl_characters += 0 1 2 3 4 5 6 7 8 9
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__gmsl_characters += ` ~ ! @ \# $$ % ^ & * ( ) - _ = +
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__gmsl_characters += { } [ ] \ : ; ' " < > , . / ? |
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# This results in __gmsl_space containing just a space
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__gmsl_empty :=
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__gmsl_space := $(__gmsl_empty) $(__gmsl_empty)
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strlen = $(__gmsl_tr1)$(call assert_no_dollar,$0,$1)$(strip $(eval __temp := $(subst $(__gmsl_space),x,$1))$(foreach a,$(__gmsl_characters),$(eval __temp := $$(subst $$a,x,$(__temp))))$(eval __temp := $(subst x,x ,$(__temp)))$(words $(__temp)))
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# This results in __gmsl_newline containing just a newline
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define __gmsl_newline
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endef
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# ----------------------------------------------------------------------------
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# Function: substr
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# Arguments: 1: A string
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# 2: Start position (first character is 1)
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# 3: End position (inclusive)
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# Returns: A substring.
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# Note: The string in $1 must not contain a <20>
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# ----------------------------------------------------------------------------
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substr = $(if $2,$(__gmsl_tr3)$(call assert_no_dollar,$0,$1$2$3)$(strip $(eval __temp := $$(subst $$(__gmsl_space),<2C> ,$$1))$(foreach a,$(__gmsl_characters),$(eval __temp := $$(subst $$a,$$a$$(__gmsl_space),$(__temp))))$(eval __temp := $(wordlist $2,$3,$(__temp))))$(subst <20>,$(__gmsl_space),$(subst $(__gmsl_space),,$(__temp))))
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endif # __gmsl_have_eval
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# ###########################################################################
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# SET MANIPULATION FUNCTIONS
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# ###########################################################################
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# Sets are represented by sorted, deduplicated lists. To create a set
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# from a list use set_create, or start with the empty_set and
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# set_insert individual elements
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# This is the empty set
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empty_set :=
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# ----------------------------------------------------------------------------
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# Function: set_create
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# Arguments: 1: A list of set elements
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# Returns: Returns the newly created set
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# ----------------------------------------------------------------------------
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set_create = $(__gmsl_tr1)$(sort $1)
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# ----------------------------------------------------------------------------
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# Function: set_insert
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# Arguments: 1: A single element to add to a set
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# 2: A set
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# Returns: Returns the set with the element added
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# ----------------------------------------------------------------------------
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set_insert = $(__gmsl_tr2)$(sort $1 $2)
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# ----------------------------------------------------------------------------
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# Function: set_remove
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# Arguments: 1: A single element to remove from a set
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# 2: A set
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# Returns: Returns the set with the element removed
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# ----------------------------------------------------------------------------
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set_remove = $(__gmsl_tr2)$(filter-out $1,$2)
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# ----------------------------------------------------------------------------
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# Function: set_is_member, set_is_not_member
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# Arguments: 1: A single element
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# 2: A set
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# Returns: (set_is_member) Returns $(true) if the element is in the set
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# (set_is_not_member) Returns $(false) if the element is in the set
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# ----------------------------------------------------------------------------
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set_is_member = $(__gmsl_tr2)$(if $(filter $1,$2),$(true),$(false))
|
||
set_is_not_member = $(__gmsl_tr2)$(if $(filter $1,$2),$(false),$(true))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: set_union
|
||
# Arguments: 1: A set
|
||
# 2: Another set
|
||
# Returns: Returns the union of the two sets
|
||
# ----------------------------------------------------------------------------
|
||
set_union = $(__gmsl_tr2)$(sort $1 $2)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: set_intersection
|
||
# Arguments: 1: A set
|
||
# 2: Another set
|
||
# Returns: Returns the intersection of the two sets
|
||
# ----------------------------------------------------------------------------
|
||
set_intersection = $(__gmsl_tr2)$(filter $1,$2)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: set_is_subset
|
||
# Arguments: 1: A set
|
||
# 2: Another set
|
||
# Returns: Returns $(true) if the first set is a subset of the second
|
||
# ----------------------------------------------------------------------------
|
||
set_is_subset = $(__gmsl_tr2)$(call set_equal,$(call set_intersection,$1,$2),$1)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: set_equal
|
||
# Arguments: 1: A set
|
||
# 2: Another set
|
||
# Returns: Returns $(true) if the two sets are identical
|
||
# ----------------------------------------------------------------------------
|
||
set_equal = $(__gmsl_tr2)$(call seq,$1,$2)
|
||
|
||
# ###########################################################################
|
||
# ARITHMETIC LIBRARY
|
||
# ###########################################################################
|
||
|
||
# Integers a represented by lists with the equivalent number of x's.
|
||
# For example the number 4 is x x x x.
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: int_decode
|
||
# Arguments: 1: A number of x's representation
|
||
# Returns: Returns the integer for human consumption that is represented
|
||
# by the string of x's
|
||
# ----------------------------------------------------------------------------
|
||
int_decode = $(__gmsl_tr1)$(if $1,$(if $(call seq,$(word 1,$1),x),$(words $1),$1),0)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: int_encode
|
||
# Arguments: 1: A number in human-readable integer form
|
||
# Returns: Returns the integer encoded as a string of x's
|
||
# ----------------------------------------------------------------------------
|
||
__int_encode = $(if $1,$(if $(call seq,$(words $(wordlist 1,$1,$2)),$1),$(wordlist 1,$1,$2),$(call __int_encode,$1,$(if $2,$2 $2,x))))
|
||
__strip_leading_zero = $(if $1,$(if $(call seq,$(patsubst 0%,%,$1),$1),$1,$(call __strip_leading_zero,$(patsubst 0%,%,$1))),0)
|
||
int_encode = $(__gmsl_tr1)$(call __int_encode,$(call __strip_leading_zero,$1))
|
||
|
||
# The arithmetic library functions come in two forms: one form of each
|
||
# function takes integers as arguments and the other form takes the
|
||
# encoded form (x's created by a call to int_encode). For example,
|
||
# there are two plus functions:
|
||
#
|
||
# plus Called with integer arguments and returns an integer
|
||
# int_plus Called with encoded arguments and returns an encoded result
|
||
#
|
||
# plus will be slower than int_plus because its arguments and result
|
||
# have to be translated between the x's format and integers. If doing
|
||
# a complex calculation use the int_* forms with a single encoding of
|
||
# inputs and single decoding of the output. For simple calculations
|
||
# the direct forms can be used.
|
||
|
||
# Helper function used to wrap an int_* function into a function that
|
||
# takes a pair of integers, perhaps a function and returns an integer
|
||
# result
|
||
__gmsl_int_wrap = $(call int_decode,$(call $1,$(call int_encode,$2),$(call int_encode,$3)))
|
||
__gmsl_int_wrap1 = $(call int_decode,$(call $1,$(call int_encode,$2)))
|
||
__gmsl_int_wrap2 = $(call $1,$(call int_encode,$2),$(call int_encode,$3))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: int_plus
|
||
# Arguments: 1: A number in x's representation
|
||
# 2: Another number in x's represntation
|
||
# Returns: Returns the sum of the two numbers in x's representation
|
||
# ----------------------------------------------------------------------------
|
||
int_plus = $(strip $(__gmsl_tr2)$1 $2)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: plus (wrapped version of int_plus)
|
||
# Arguments: 1: An integer
|
||
# 2: Another integer
|
||
# Returns: Returns the sum of the two integers
|
||
# ----------------------------------------------------------------------------
|
||
plus = $(__gmsl_tr2)$(call __gmsl_int_wrap,int_plus,$1,$2)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: int_subtract
|
||
# Arguments: 1: A number in x's representation
|
||
# 2: Another number in x's represntation
|
||
# Returns: Returns the difference of the two numbers in x's representation,
|
||
# or outputs an error on a numeric underflow
|
||
# ----------------------------------------------------------------------------
|
||
int_subtract = $(strip $(__gmsl_tr2)$(if $(call int_gte,$1,$2), \
|
||
$(filter-out xx,$(join $1,$2)), \
|
||
$(call __gmsl_warning,Subtraction underflow)))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: subtract (wrapped version of int_subtract)
|
||
# Arguments: 1: An integer
|
||
# 2: Another integer
|
||
# Returns: Returns the difference of the two integers,
|
||
# or outputs an error on a numeric underflow
|
||
# ----------------------------------------------------------------------------
|
||
subtract = $(__gmsl_tr2)$(call __gmsl_int_wrap,int_subtract,$1,$2)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: int_multiply
|
||
# Arguments: 1: A number in x's representation
|
||
# 2: Another number in x's represntation
|
||
# Returns: Returns the product of the two numbers in x's representation
|
||
# ----------------------------------------------------------------------------
|
||
int_multiply = $(strip $(__gmsl_tr2)$(foreach a,$1,$2))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: multiply (wrapped version of int_multiply)
|
||
# Arguments: 1: An integer
|
||
# 2: Another integer
|
||
# Returns: Returns the product of the two integers
|
||
# ----------------------------------------------------------------------------
|
||
multiply = $(__gmsl_tr2)$(call __gmsl_int_wrap,int_multiply,$1,$2)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: int_divide
|
||
# Arguments: 1: A number in x's representation
|
||
# 2: Another number in x's represntation
|
||
# Returns: Returns the result of integer division of argument 1 divided
|
||
# by argument 2 in x's representation
|
||
# ----------------------------------------------------------------------------
|
||
int_divide = $(__gmsl_tr2)$(strip $(if $1,$(if $2, \
|
||
$(subst M,x,$(filter-out x,$(subst $2,M,$1))), \
|
||
$(call __gmsl_error,Division by zero))))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: divide (wrapped version of int_divide)
|
||
# Arguments: 1: An integer
|
||
# 2: Another integer
|
||
# Returns: Returns the integer division of the first argument by the second
|
||
# ----------------------------------------------------------------------------
|
||
divide = $(__gmsl_tr2)$(call __gmsl_int_wrap,int_divide,$1,$2)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: int_modulo
|
||
# Arguments: 1: A number in x's representation
|
||
# 2: Another number in x's represntation
|
||
# Returns: Returns the remainder of integer division of argument 1 divided
|
||
# by argument 2 in x's representation
|
||
# ----------------------------------------------------------------------------
|
||
int_modulo = $(__gmsl_tr2)$(strip $(if $1,$(if $2, \
|
||
$(filter-out M,$(subst $2,M,$1)), \
|
||
$(call __gmsl_error,Division by zero))))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: modulo (wrapped version of int_modulo)
|
||
# Arguments: 1: An integer
|
||
# 2: Another integer
|
||
# Returns: Returns the remainder of integer division of the first argument
|
||
# by the second
|
||
# ----------------------------------------------------------------------------
|
||
modulo = $(__gmsl_tr2)$(call __gmsl_int_wrap,int_modulo,$1,$2)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: int_max, int_min
|
||
# Arguments: 1: A number in x's representation
|
||
# 2: Another number in x's represntation
|
||
# Returns: Returns the maximum or minimum of its arguments in x's
|
||
# representation
|
||
# ----------------------------------------------------------------------------
|
||
int_max = $(__gmsl_tr2)$(subst xx,x,$(join $1,$2))
|
||
int_min = $(__gmsl_tr2)$(subst xx,x,$(filter xx,$(join $1,$2)))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: max, min
|
||
# Arguments: 1: An integer
|
||
# 2: Another integer
|
||
# Returns: Returns the maximum or minimum of its integer arguments
|
||
# ----------------------------------------------------------------------------
|
||
max = $(__gmsl_tr2)$(call __gmsl_int_wrap,int_max,$1,$2)
|
||
min = $(__gmsl_tr2)$(call __gmsl_int_wrap,int_min,$1,$2)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: int_gt, int_gte, int_lt, int_lte, int_eq, int_ne
|
||
# Arguments: Two x's representation numbers to be compared
|
||
# Returns: $(true) or $(false)
|
||
#
|
||
# int_gt First argument greater than second argument
|
||
# int_gte First argument greater than or equal to second argument
|
||
# int_lt First argument less than second argument
|
||
# int_lte First argument less than or equal to second argument
|
||
# int_eq First argument is numerically equal to the second argument
|
||
# int_ne First argument is not numerically equal to the second argument
|
||
# ----------------------------------------------------------------------------
|
||
int_gt = $(__gmsl_tr2)$(call __gmsl_make_bool, \
|
||
$(filter-out $(words $2), \
|
||
$(words $(call int_max,$1,$2))))
|
||
int_gte = $(__gmsl_tr2)$(call __gmsl_make_bool, \
|
||
$(call int_gt,$1,$2)$(call int_eq,$1,$2))
|
||
int_lt = $(__gmsl_tr2)$(call __gmsl_make_bool, \
|
||
$(filter-out $(words $1), \
|
||
$(words $(call int_max,$1,$2))))
|
||
int_lte = $(__gmsl_tr2)$(call __gmsl_make_bool, \
|
||
$(call int_lt,$1,$2)$(call int_eq,$1,$2))
|
||
int_eq = $(__gmsl_tr2)$(call __gmsl_make_bool, \
|
||
$(filter $(words $1),$(words $2)))
|
||
int_ne = $(__gmsl_tr2)$(call __gmsl_make_bool, \
|
||
$(filter-out $(words $1),$(words $2)))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: gt, gte, lt, lte, eq, ne
|
||
# Arguments: Two integers to be compared
|
||
# Returns: $(true) or $(false)
|
||
#
|
||
# gt First argument greater than second argument
|
||
# gte First argument greater than or equal to second argument
|
||
# lt First argument less than second argument
|
||
# lte First argument less than or equal to second argument
|
||
# eq First argument is numerically equal to the second argument
|
||
# ne First argument is not numerically equal to the second argument
|
||
# ----------------------------------------------------------------------------
|
||
gt = $(__gmsl_tr2)$(call __gmsl_int_wrap2,int_gt,$1,$2)
|
||
gte = $(__gmsl_tr2)$(call __gmsl_int_wrap2,int_gte,$1,$2)
|
||
lt = $(__gmsl_tr2)$(call __gmsl_int_wrap2,int_lt,$1,$2)
|
||
lte = $(__gmsl_tr2)$(call __gmsl_int_wrap2,int_lte,$1,$2)
|
||
eq = $(__gmsl_tr2)$(call __gmsl_int_wrap2,int_eq,$1,$2)
|
||
ne = $(__gmsl_tr2)$(call __gmsl_int_wrap2,int_ne,$1,$2)
|
||
|
||
# increment adds 1 to its argument, decrement subtracts 1. Note that
|
||
# decrement does not range check and hence will not underflow, but
|
||
# will incorrectly say that 0 - 1 = 0
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: int_inc
|
||
# Arguments: 1: A number in x's representation
|
||
# Returns: The number incremented by 1 in x's representation
|
||
# ----------------------------------------------------------------------------
|
||
int_inc = $(strip $(__gmsl_tr1)$1 x)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: inc
|
||
# Arguments: 1: An integer
|
||
# Returns: The argument incremented by 1
|
||
# ----------------------------------------------------------------------------
|
||
inc = $(__gmsl_tr1)$(call __gmsl_int_wrap1,int_inc,$1)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: int_dec
|
||
# Arguments: 1: A number in x's representation
|
||
# Returns: The number decremented by 1 in x's representation
|
||
# ----------------------------------------------------------------------------
|
||
int_dec = $(__gmsl_tr1)$(strip \
|
||
$(if $(call sne,0,$(words $1)), \
|
||
$(wordlist 2,$(words $1),$1)))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: dec
|
||
# Arguments: 1: An integer
|
||
# Returns: The argument decremented by 1
|
||
# ----------------------------------------------------------------------------
|
||
dec = $(__gmsl_tr1)$(call __gmsl_int_wrap1,int_dec,$1)
|
||
|
||
# double doubles its argument, and halve halves it
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: int_double
|
||
# Arguments: 1: A number in x's representation
|
||
# Returns: The number doubled (i.e. * 2) and returned in x's representation
|
||
# ----------------------------------------------------------------------------
|
||
int_double = $(strip $(__gmsl_tr1)$1 $1)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: double
|
||
# Arguments: 1: An integer
|
||
# Returns: The integer times 2
|
||
# ----------------------------------------------------------------------------
|
||
double = $(__gmsl_tr1)$(call __gmsl_int_wrap1,int_double,$1)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: int_halve
|
||
# Arguments: 1: A number in x's representation
|
||
# Returns: The number halved (i.e. / 2) and returned in x's representation
|
||
# ----------------------------------------------------------------------------
|
||
int_halve = $(__gmsl_tr1)$(strip $(subst xx,x,$(filter-out xy x y, \
|
||
$(join $1,$(foreach a,$1,y x)))))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: halve
|
||
# Arguments: 1: An integer
|
||
# Returns: The integer divided by 2
|
||
# ----------------------------------------------------------------------------
|
||
halve = $(__gmsl_tr1)$(call __gmsl_int_wrap1,int_halve,$1)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: sequence
|
||
# Arguments: 1: An integer
|
||
# 2: An integer
|
||
# Returns: The sequence [arg1, arg2] of integers if arg1 < arg2 or
|
||
# [arg2, arg1] if arg2 > arg1. If arg1 == arg1 return [arg1]
|
||
# ----------------------------------------------------------------------------
|
||
sequence = $(__gmsl_tr2)$(strip $(if $(call lte,$1,$2), \
|
||
$(call __gmsl_sequence_up,$1,$2), \
|
||
$(call __gmsl_sequence_dn,$2,$1)))
|
||
|
||
__gmsl_sequence_up = $(if $(call seq,$1,$2),$1,$1 $(call __gmsl_sequence_up,$(call inc,$1),$2))
|
||
__gmsl_sequence_dn = $(if $(call seq,$1,$2),$1,$2 $(call __gmsl_sequence_dn,$1,$(call dec,$2)))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: dec2hex, dec2bin, dec2oct
|
||
# Arguments: 1: An integer
|
||
# Returns: The decimal argument converted to hexadecimal, binary or
|
||
# octal
|
||
# ----------------------------------------------------------------------------
|
||
|
||
__gmsl_digit = $(subst 15,f,$(subst 14,e,$(subst 13,d,$(subst 12,c,$(subst 11,b,$(subst 10,a,$1))))))
|
||
|
||
dec2hex = $(call __gmsl_dec2base,$(call int_encode,$1),$(call int_encode,16))
|
||
dec2bin = $(call __gmsl_dec2base,$(call int_encode,$1),$(call int_encode,2))
|
||
dec2oct = $(call __gmsl_dec2base,$(call int_encode,$1),$(call int_encode,8))
|
||
|
||
__gmsl_base_divide = $(subst $2,X ,$1)
|
||
__gmsl_q = $(strip $(filter X,$1))
|
||
__gmsl_r = $(words $(filter x,$1))
|
||
|
||
__gmsl_dec2base = $(eval __gmsl_temp := $(call __gmsl_base_divide,$1,$2))$(call __gmsl_dec2base_,$(call __gmsl_q,$(__gmsl_temp)),$(call __gmsl_r,$(__gmsl_temp)),$2)
|
||
__gmsl_dec2base_ = $(if $1,$(call __gmsl_dec2base,$(subst X,x,$1),$3))$(call __gmsl_digit,$2)
|
||
|
||
ifdef __gmsl_have_eval
|
||
# ###########################################################################
|
||
# ASSOCIATIVE ARRAYS
|
||
# ###########################################################################
|
||
|
||
# Magic string that is very unlikely to appear in a key or value
|
||
|
||
__gmsl_aa_magic := faf192c8efbc25c27992c5bc5add390393d583c6
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: set
|
||
# Arguments: 1: Name of associative array
|
||
# 2: The key value to associate
|
||
# 3: The value associated with the key
|
||
# Returns: Nothing
|
||
# ----------------------------------------------------------------------------
|
||
set = $(__gmsl_tr3)$(call assert_no_space,$0,$1$2)$(call assert_no_dollar,$0,$1$2$3)$(eval __gmsl_aa_$1_$(__gmsl_aa_magic)_$2_gmsl_aa_$1 := $3)
|
||
|
||
# Only used internally by memoize function
|
||
|
||
__gmsl_set = $(call set,$1,$2,$3)$3
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: get
|
||
# Arguments: 1: Name of associative array
|
||
# 2: The key to retrieve
|
||
# Returns: The value stored in the array for that key
|
||
# ----------------------------------------------------------------------------
|
||
get = $(strip $(__gmsl_tr2)$(call assert_no_space,$0,$1$2)$(call assert_no_dollar,$0,$1$2)$(__gmsl_aa_$1_$(__gmsl_aa_magic)_$2_gmsl_aa_$1))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: keys
|
||
# Arguments: 1: Name of associative array
|
||
# Returns: Returns a list of all defined keys in the array
|
||
# ----------------------------------------------------------------------------
|
||
keys = $(__gmsl_tr1)$(call assert_no_space,$0,$1)$(call assert_no_dollar,$0,$1)$(sort $(patsubst __gmsl_aa_$1_$(__gmsl_aa_magic)_%_gmsl_aa_$1,%, \
|
||
$(filter __gmsl_aa_$1_$(__gmsl_aa_magic)_%_gmsl_aa_$1,$(.VARIABLES))))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: defined
|
||
# Arguments: 1: Name of associative array
|
||
# 2: The key to test
|
||
# Returns: Returns true if the key is defined (i.e. not empty)
|
||
# ----------------------------------------------------------------------------
|
||
defined = $(__gmsl_tr2)$(call assert_no_space,$0,$1$2)$(call assert_no_dollar,$0,$1$2)$(call sne,$(call get,$1,$2),)
|
||
|
||
endif # __gmsl_have_eval
|
||
|
||
ifdef __gmsl_have_eval
|
||
# ###########################################################################
|
||
# NAMED STACKS
|
||
# ###########################################################################
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: push
|
||
# Arguments: 1: Name of stack
|
||
# 2: Value to push onto the top of the stack (must not contain
|
||
# a space)
|
||
# Returns: None
|
||
# ----------------------------------------------------------------------------
|
||
push = $(__gmsl_tr2)$(call assert_no_space,$0,$1$2)$(call assert_no_dollar,$0,$1$2)$(eval __gmsl_stack_$1 := $2 $(if $(filter-out undefined,\
|
||
$(origin __gmsl_stack_$1)),$(__gmsl_stack_$1)))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: pop
|
||
# Arguments: 1: Name of stack
|
||
# Returns: Top element from the stack after removing it
|
||
# ----------------------------------------------------------------------------
|
||
pop = $(__gmsl_tr1)$(call assert_no_space,$0,$1)$(call assert_no_dollar,$0,$1)$(strip $(if $(filter-out undefined,$(origin __gmsl_stack_$1)), \
|
||
$(call first,$(__gmsl_stack_$1)) \
|
||
$(eval __gmsl_stack_$1 := $(call rest,$(__gmsl_stack_$1)))))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: peek
|
||
# Arguments: 1: Name of stack
|
||
# Returns: Top element from the stack without removing it
|
||
# ----------------------------------------------------------------------------
|
||
peek = $(__gmsl_tr1)$(call assert_no_space,$0,$1)$(call assert_no_dollar,$0,$1)$(call first,$(__gmsl_stack_$1))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: depth
|
||
# Arguments: 1: Name of stack
|
||
# Returns: Number of items on the stack
|
||
# ----------------------------------------------------------------------------
|
||
depth = $(__gmsl_tr1)$(call assert_no_space,$0,$1)$(call assert_no_dollar,$0,$1)$(words $(__gmsl_stack_$1))
|
||
|
||
endif # __gmsl_have_eval
|
||
|
||
ifdef __gmsl_have_eval
|
||
# ###########################################################################
|
||
# STRING CACHE
|
||
# ###########################################################################
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: memoize
|
||
# Arguments: 1. Name of the function to be called if the string
|
||
# has not been previously seen
|
||
# 2. A string
|
||
# Returns: Returns the result of a memo function (which the user must
|
||
# define) on the passed in string and remembers the result.
|
||
#
|
||
# Example: Set memo = $(shell echo "$1" | md5sum) to make a cache
|
||
# of MD5 hashes of strings. $(call memoize,memo,foo bar baz)
|
||
# ----------------------------------------------------------------------------
|
||
__gmsl_memoize = $(subst $(__gmsl_space),<2C>,$1)cc2af1bb7c4482f2ba75e338b963d3e7$(subst $(__gmsl_space),<2C>,$2)
|
||
memoize = $(__gmsl_tr2)$(strip $(if $(call defined,__gmsl_m,$(__gmsl_memoize)),\
|
||
$(call get,__gmsl_m,$(__gmsl_memoize)), \
|
||
$(call __gmsl_set,__gmsl_m,$(__gmsl_memoize),$(call $1,$2))))
|
||
|
||
endif # __gmsl_have_eval
|
||
|
||
# ###########################################################################
|
||
# DEBUGGING FACILITIES
|
||
# ###########################################################################
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Target: gmsl-echo-%
|
||
# Arguments: The % should be replaced by the name of a variable that you
|
||
# wish to print out.
|
||
# Action: Echos the value of the variable that matches the %.
|
||
# For example, 'make gmsl-echo-SHELL' will output the value of
|
||
# the SHELL variable.
|
||
# ----------------------------------------------------------------------------
|
||
gmsl-echo-%: ; @echo $($*)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Target: gmsl-print-%
|
||
# Arguments: The % should be replaced by the name of a variable that you
|
||
# wish to print out.
|
||
# Action: Echos the name of the variable that matches the % and its value.
|
||
# For example, 'make gmsl-print-SHELL' will output the value of
|
||
# the SHELL variable
|
||
# ----------------------------------------------------------------------------
|
||
gmsl-print-%: ; @echo $* = $($*)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: assert
|
||
# Arguments: 1: A boolean that must be true or the assertion will fail
|
||
# 2: The message to print with the assertion
|
||
# Returns: None
|
||
# ----------------------------------------------------------------------------
|
||
assert = $(if $2,$(if $1,,$(call __gmsl_error,Assertion failure: $2)))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: assert_exists
|
||
# Arguments: 1: Name of file that must exist, if it is missing an assertion
|
||
# will be generated
|
||
# Returns: None
|
||
# ----------------------------------------------------------------------------
|
||
assert_exists = $(if $0,$(call assert,$(wildcard $1),file '$1' missing))
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: assert_no_dollar
|
||
# Arguments: 1: Name of a function being executd
|
||
# 2: Arguments to check
|
||
# Returns: None
|
||
# ----------------------------------------------------------------------------
|
||
assert_no_dollar = $(call __gmsl_tr2)$(call assert,$(call not,$(findstring $(__gmsl_dollar),$2)),$1 called with a dollar sign in argument)
|
||
|
||
# ----------------------------------------------------------------------------
|
||
# Function: assert_no_space
|
||
# Arguments: 1: Name of a function being executd
|
||
# 2: Arguments to check
|
||
# Returns: None
|
||
# ----------------------------------------------------------------------------
|
||
ifeq ($(__gmsl_spaced_vars),$(false))
|
||
assert_no_space = $(call assert,$(call not,$(findstring $(__gmsl_aa_magic),$(subst $(__gmsl_space),$(__gmsl_aa_magic),$2))),$1 called with a space in argument)
|
||
else
|
||
assert_no_space =
|
||
endif
|