Eliminate unnecessary use of cat

[Shushe] / GNUmakefile

diff --git a/GNUmakefile b/GNUmakefile
index 1e809b241c73de867d3aaa268a22f5f0ebe641cd..952aebd6f4d67ef5681072377004e94f65994832 100644 (file)
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -1,9 +1,12 @@
+# SPDX-FileCopyrightText: 2023, 2024 Lady <https://www.ladys.computer/about/#lady>
+# SPDX-License-Identifier: MPL-2.0
+

 SHELL = /bin/sh
 
 # ━ § BASIC INFORMATION ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 override define makefileinfo
  ╭────────────────────────────╮
 SHELL = /bin/sh
 
 # ━ § BASIC INFORMATION ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 override define makefileinfo
  ╭────────────────────────────╮

-╔╡ ⁌ ⛩️📰 书社 ∷ GNUmakefile ╞════════════════════════════════╗
+╔╡ ⁌ ⛩️📰 书社 ∷ GNUmakefile ╞═════════════════════════════════╗

 ║╰────────────────────────────╯                                ║
 ╟┬ ¶ Prerequisites ───────────────────────────────────────────┬╢
 ║│                                                            │║
 ║╰────────────────────────────╯                                ║
 ╟┬ ¶ Prerequisites ───────────────────────────────────────────┬╢
 ║│                                                            │║


@@ -16,26 +19,30 @@ override define makefileinfo
 ║│                                                            │║
 ║│ • awk                                                      │║
 ║│ • cat                                                      │║
 ║│                                                            │║
 ║│ • awk                                                      │║
 ║│ • cat                                                      │║

+║│ • cd                                                       │║
+║│ • cksum                                                    │║

 ║│ • cp                                                       │║
 ║│ • date                                                     │║
 ║│ • cp                                                       │║
 ║│ • date                                                     │║

-║│ • echo                                                     │║
+║│ • diff                                                     │║

 ║│ • file                                                     │║
 ║│ • find                                                     │║
 ║│ • file                                                     │║
 ║│ • find                                                     │║

+║│ • grep                                                     │║

 ║│ • git (optional)                                           │║
 ║│ • ln                                                       │║
 ║│ • git (optional)                                           │║
 ║│ • ln                                                       │║

-║│ • mkdir (requires support for `-p´)                        │║
+║│ • mkdir                                                    │║

 ║│ • mv                                                       │║
 ║│ • mv                                                       │║

-║│ • od (requires support for `-t x1´)                        │║
+║│ • od                                                       │║
+║│ • pax (only when generating archives)                      │║

 ║│ • printf                                                   │║
 ║│ • rm                                                       │║
 ║│ • sed                                                      │║
 ║│ • sleep                                                    │║
 ║│ • printf                                                   │║
 ║│ • rm                                                       │║
 ║│ • sed                                                      │║
 ║│ • sleep                                                    │║

-║│ • stat                                                     │║

 ║│ • test                                                     │║
 ║│ • touch                                                    │║
 ║│ • test                                                     │║
 ║│ • touch                                                    │║

-║│ • tr (requires support for `-d´)                           │║
-║│ • uuencode (requires support for `-m´ and `-r´)            │║
-║│ • xargs (requires support for `-0´)                        │║
+║│ • tr                                                       │║
+║│ • uuencode                                                 │║
+║│ • uudecode                                                 │║
+║│ • xargs                                                    │║

 ║│ • xmlcatalog (provided by libxml2)                         │║
 ║│ • xmllint (provided by libxml2)                            │║
 ║│ • xsltproc (provided by libxslt)                           │║
 ║│ • xmlcatalog (provided by libxml2)                         │║
 ║│ • xmllint (provided by libxml2)                            │║
 ║│ • xsltproc (provided by libxslt)                           │║


@@ -46,13 +53,14 @@ override define makefileinfo
 ║╰────────────────────────────────────────────────────────────╯║
 ╟┬ ¶ Usage ───────────────────────────────────────────────────┬╢
 ║│                                                            │║
 ║╰────────────────────────────────────────────────────────────╯║
 ╟┬ ¶ Usage ───────────────────────────────────────────────────┬╢
 ║│                                                            │║

-║│ • `make all´: Compile, but do not install, all files.      │║
+║│ • `make all´ (default): Compile, but do not install, all   │║
+║│   files.                                                   │║

 ║│                                                            │║
 ║│ • `make clean´: Remove `BUILDDIR´.                         │║
 ║│                                                            │║
 ║│ • `make gone´: Remove `BUILDDIR´ and installed files.      │║
 ║│                                                            │║
 ║│                                                            │║
 ║│ • `make clean´: Remove `BUILDDIR´.                         │║
 ║│                                                            │║
 ║│ • `make gone´: Remove `BUILDDIR´ and installed files.      │║
 ║│                                                            │║

-║│ • `make help´ (default): Print this message.               │║
+║│ • `make help´: Print this message.                         │║

 ║│                                                            │║
 ║│ • `make install´: Compile all files and install in         │║
 ║│   `DESTDIR´.                                               │║
 ║│                                                            │║
 ║│ • `make install´: Compile all files and install in         │║
 ║│   `DESTDIR´.                                               │║


@@ -60,6 +68,10 @@ override define makefileinfo
 ║│ • `make list´: List all recognized source files and their  │║
 ║│   classification (including media type and dependencies).  │║
 ║│                                                            │║
 ║│ • `make list´: List all recognized source files and their  │║
 ║│   classification (including media type and dependencies).  │║
 ║│                                                            │║

+║│ • `make listout´: List out the destinations of all         │║
+║│   resulting files (relative to `DESTDIR´), e·g for         │║
+║│   processing by another script.                            │║
+║│                                                            │║

 ║│ • `make uninstall´: Remove installed files, but not        │║
 ║│   `BUILDDIR´.                                              │║
 ║│                                                            │║
 ║│ • `make uninstall´: Remove installed files, but not        │║
 ║│   `BUILDDIR´.                                              │║
 ║│                                                            │║


@@ -88,30 +100,44 @@ endef
 # If these are not installed on your computer, or you need to use a different implementation, you can override the appropriate variable.
 AWK := awk
 CAT := cat
 # If these are not installed on your computer, or you need to use a different implementation, you can override the appropriate variable.
 AWK := awk
 CAT := cat

+CD := cd
+CKSUM := cksum

 CP := cp
 DATE := date
 CP := cp
 DATE := date

-ECHO := echo
+DIFF := diff

 FILE := file
 FIND := find
 GIT := git
 FILE := file
 FIND := find
 GIT := git

+GREP := grep

 LN := ln
 MKDIR := mkdir
 MV := mv
 OD := od
 LN := ln
 MKDIR := mkdir
 MV := mv
 OD := od

+PAX := pax

 PRINTF := printf
 RM := rm
 SED := sed
 SLEEP := sleep
 PRINTF := printf
 RM := rm
 SED := sed
 SLEEP := sleep

-STAT := stat

 TEST := test
 TOUCH := touch
 TR := tr
 TEST := test
 TOUCH := touch
 TR := tr

+UUDECODE := uudecode

 UUENCODE := uuencode
 XARGS := xargs
 XMLCATALOG := xmlcatalog
 XMLLINT := xmllint
 XSLTPROC := xsltproc
 
 UUENCODE := uuencode
 XARGS := xargs
 XMLCATALOG := xmlcatalog
 XMLLINT := xmllint
 XSLTPROC := xsltproc
 

+# This variable is not used in normal execution.
+#
+# In the archiving `MODE´, it provides the X·M·L file from which the archive should be constructed.
+SRC :=
+
+# This variable is not used in normal execution.
+#
+# In the archiving `MODE´, it provides a user‐friendly name for the archive.
+NAME :=
+

 # The directory which contains the source files.
 #
 # Multiple directories can be given so long as files with the same name do not exist in each.
 # The directory which contains the source files.
 #
 # Multiple directories can be given so long as files with the same name do not exist in each.


@@ -123,17 +149,23 @@ SRCDIR := sources
 # Multiple directories can be given so long as files with the same name do not exist in each.
 #
 # These can be inside of `SRCDIR´ directories if desired.
 # Multiple directories can be given so long as files with the same name do not exist in each.
 #
 # These can be inside of `SRCDIR´ directories if desired.

-INCLUDEDIR := sources/includes
+INCLUDEDIR := $(SRCDIR)/includes

 
 # The directory in which to generate temporary buildfiles.
 
 # The directory in which to generate temporary buildfiles.

+#
+# This variable is also used by the archiving `MODE´.

 BUILDDIR := build
 
 # The directory into which to output files on `make install´.
 BUILDDIR := build
 
 # The directory into which to output files on `make install´.

+#
+# This variable is also used by the archiving `MODE´.

 DESTDIR := public
 
 # The location of this Makefile (and related ⛩️📰 书社 files), relative to the current working directory.
 #
 # By default, this is inferred from the variable `MAKEFILE_LIST´.
 DESTDIR := public
 
 # The location of this Makefile (and related ⛩️📰 书社 files), relative to the current working directory.
 #
 # By default, this is inferred from the variable `MAKEFILE_LIST´.

+#
+# This variable is also used by the archiving `MODE´.

 THISDIR := $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))
 
 # Configuration of `find´.
 THISDIR := $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))
 
 # Configuration of `find´.


@@ -141,8 +173,8 @@ THISDIR := $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))
 # By default, `find´ will ignore files which begin with a period and those which are likely to cause problems for `make´.
 EXTRAFINDRULES :=
 EXTRAFINDINCLUDERULES :=
 # By default, `find´ will ignore files which begin with a period and those which are likely to cause problems for `make´.
 EXTRAFINDRULES :=
 EXTRAFINDINCLUDERULES :=

-FINDRULES := ! '(' '(' -name '[.-]*' -o -name '*[][*?:|$$%\#\\; ]*' ')' -a -prune ')'$(if $(EXTRAFINDRULES), -a $(EXTRAFINDRULES),)
-FINDINCLUDERULES := $(FINDRULES)$(if $(EXTRAFINDINCLUDERULES), -a $(EXTRAFINDINCLUDERULES),)
+FINDRULES := ! '(' '(' -name '[.-]*' -a ! -name '.' -o -name '*[][*?:|$$%\#\\; ]*' -o -name '*[)]' ')' -a -prune ')'$(if $(EXTRAFINDRULES), -a '(' $(EXTRAFINDRULES) ')',)
+FINDINCLUDERULES := $(FINDRULES)$(if $(EXTRAFINDINCLUDERULES), -a '(' $(EXTRAFINDINCLUDERULES) ')',)

 
 # The list of magic files to use when determining media types.
 #
 
 # The list of magic files to use when determining media types.
 #


@@ -163,17 +195,54 @@ EXTRATRANSFORMS :=
 TRANSFORMS := $(sort $(patsubst ./%,%,$(wildcard $(THISDIR)/transforms/*.xslt)) $(EXTRATRANSFORMS))
 
 # List of types which should be treated as X·M·L.
 TRANSFORMS := $(sort $(patsubst ./%,%,$(wildcard $(THISDIR)/transforms/*.xslt)) $(EXTRATRANSFORMS))
 
 # List of types which should be treated as X·M·L.

-XMLTYPES := application/xml text/xml
+#
+# Types which start with a `+´ are suffixes and match any type which
+# ends accordingly.
+XMLTYPES := application/xml text/xml +xml
+
+# A program to run on basic X·M·L files after they are transformed.
+FINALIZE := $(XMLLINT) --nonet --nsclean
+
+ifdef GIT
+ifneq ($(wildcard $(THISDIR)/.git),)
+# A description of the current git revision of ⛩️📰 书社.
+THISREV := $(shell $(CD) $(THISDIR); $(GIT) describe 2>>/dev/null || $(GIT) rev-parse HEAD 2>>/dev/null || :)
+endif
+
+ifneq ($(wildcard .git),)
+# A description of the current git revision of the working directory.
+SRCREV := $(shell $(GIT) describe 2>>/dev/null || $(GIT) rev-parse HEAD 2>>/dev/null || :)
+endif
+endif
+
+# The mode in which to run this make·file.
+# Modes essentially allow for the combination of multiple conceptual make·files into a single source.
+#
+# The following modes are available :—
+#
+# • ‹ urn:fdc:ladys.computer:20231231:Shu1She4:mode:default ›:
+#   The default mode; typical Shushe behaviours.
+#
+# • ‹ urn:fdc:ladys.computer:20231231:Shu1She4:mode:archive ›:
+#   Generates archive files from parse results.
+MODE := urn:fdc:ladys.computer:20231231:Shu1She4:mode:default
+
+# Set to a non·empty value to silence informative messages.
+QUIET :=

 
 # Set to a non·empty value to print all commands as they run.
 VERBOSE :=
 
 # The default target for this makefile.
 
 # Set to a non·empty value to print all commands as they run.
 VERBOSE :=
 
 # The default target for this makefile.

+.DEFAULT_GOAL := all
+
+# Flags for use when calling the shell.

 #
 #

-# Print help and exit.
-.DEFAULT_GOAL := help
+# `-e` enables early exit from invocations of multiple commands after
+# the first failure.
+.SHELLFLAGS := -c -e

 
 

-# ━ § BEGIN MAKE·FILE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+# ━ § BEGIN SHARED MAKE·FILE CONSTRUCTS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

 
 # ─ ¶ Non‐Recipe Variable Definitions ─────────────────────────────────
 
 
 # ─ ¶ Non‐Recipe Variable Definitions ─────────────────────────────────
 


@@ -195,56 +264,105 @@ override comma := ,
 # (callable) Quote the given string for use within shell calls.
 override quote = '$(subst ','"'"',$1)'
 
 # (callable) Quote the given string for use within shell calls.
 override quote = '$(subst ','"'"',$1)'
 

-# Outputs an `@´ to silence rules, unless `VERBOSE´ is nonempty.
+# (callable) Get the modified time of the provided file.
+#
+# This touches a file containing only a newline and then diffs it with `/dev/null´ and extracts the timestamp from the diff.
+# Interestingly, on Macintosh, the format of `diff -u´ is only Posixy (including a fractional component and timezone) when `COMMAND_MODE=legacy´; however, the timezone will always be zero and the fractional component is ignorable, so it’s not necessary to worry about that here.
+#
+# The diff will always have an exit status of 1, but this is ignored by piping into Sed.
+#
+# ☡ This variable creates a subshell every time it is computed.
+override modtime = $(shell if $(TEST) ! -f $(call quote,$(BUILDDIR)/.mtime); then $(PRINTF) '%b' '\n' > $(call quote,$(BUILDDIR)/.mtime); fi; $(TOUCH) -r $(call quote,$1) $(call quote,$(BUILDDIR)/.mtime); TZ=UTC0 $(DIFF) -u $(call quote,$(BUILDDIR)/.mtime) /dev/null | $(SED) '1!d;s/.*  \([^ ]*\) \([^ ]*\).*$$/\1T\2Z/')
+
+# ─ ¶ Recipe Variable Definitions ─────────────────────────────────────
+
+# Outputs an `@´ to silence rules, unless `VERBOSE´ is non·empty.

 override silent := $(if $(VERBOSE),,@)
 
 override silent := $(if $(VERBOSE),,@)
 

+# (callable) Only perform the rule if `QUIET` is not set.
+override inform = $(if $(QUIET),,@$1)
+
+# (callable) Check to see if the given directory exists and create it if not.
+override ensuredirectory = if $(TEST) ! -d $(call quote,$1); then $(MKDIR) -p $(call quote,$1); fi
+
+# Quote standard input in such a way that piping it to xargs will result in it being processed as a single argument.
+#
+# If standard input ends in a newline, it is stripped; all other newlines are preserved.
+override xargsquote = $(SED) $(call quote,s/'/'"'"'/g;s/^/'/;s/$$/'/;$$!s/$$/\\/)
+
+# Quote standard input in such a way that piping it to xargs will result in each line being processed as a single argument.
+override xargsmultiquote = $(SED) $(call quote,s/'/'"'"'/g;s/^/'/;s/$$/'/)
+
+# (callable) Test if the provided xpath expression matches the provided document.
+override xpath = $(XMLLINT) --noent --nonet --xpath $(call quote,$1) $(call quote,$2) >>/dev/null 2>>/dev/null
+
+# (callable) Extract the value of the text nodes in the provided X·M·L document and print them to `stdout´.
+override extracttext = $(PRINTF) '%s' '<transform xmlns="http://www.w3.org/1999/XSL/Transform" version="1.0"><output method="text" encoding="UTF-8"/></transform>' | $(XSLTPROC) --nonet --novalid - $(call quote,$1)
+
+# (callable) Process the provided transformation result and output the result to the provided location, given the provided relative path.
+override processresultto = if $(call xpath,/*[local-name()="raw-text" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$1); then $(call extracttext,$1) >|$(call quote,$2); elif $(call xpath,/*[local-name()="base64-binary" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$1); then { $(PRINTF) '%s\n' 'begin-base64 644 -'; $(call extracttext,$1) | $(TR) -d '\t\n\f\r '; $(PRINTF) '\n%s\n' '===='; } | $(UUDECODE) -o /dev/stdout >|$(call quote,$2); elif $(call xpath,/*[local-name()="archive" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$1); then $(MAKE) -f $(call quote,$(abspath $(THISDIR)/GNUmakefile)) NAME=$(call quote,$3) SRC=$(call quote,$1) BUILDDIR=$(call quote,$(BUILDDIR)/archive/$3) DESTDIR=$(call quote,$(patsubst %/,%,$(dir $2))) MODE='urn:fdc:ladys.computer:20231231:Shu1She4:mode:archive' $(call quote,$2); else $(FINALIZE) $(call quote,$1) >|$(call quote,$2); fi
+
+# ━ § BEGIN DEFAULT MAKE·FILE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+ifeq ($(MODE),urn:fdc:ladys.computer:20231231:Shu1She4:mode:default)
+
+# ─ ¶ Non‐Recipe Variable Definitions ─────────────────────────────────
+
+# (callable) Test to see if the prerequisites provided by the second argument matches the value in the file corresponding to the first argument in `$(BUILDDIR)/lastprereqs´.
+# If not, save the new value and then add FORCE.
+# Return them regardless.
+#
+# Calling this variable is useful when a given target should be updated whenever its list of prerequisites changes in addition to whenever there is a change to one of its prerequisites.
+#
+# ☡ This variable creates at least one subshell every time it is computed.
+override diffprereqs = $(if $(subst $(shell $(CAT) $(call quote,$(BUILDDIR)/lastprereqs/$1) 2>>/dev/null || :),,$2),$2 FORCE$(and $(shell $(call ensuredirectory,$(BUILDDIR)/lastprereqs) && $(PRINTF) '%s\n' $(call quote,$2) >|$(BUILDDIR)/lastprereqs/$1),),$2)
+

 # (callable) Escape special characters for use in sed regular expressions.
 override sedesc = $(subst /,[/],$(subst $$,\$$,$(subst *,\*,$(subst .,\.,$(subst [,\[,$(subst ^,\^,$(subst \,\\,$1)))))))
 
 # (callable) Escape special characters for use in sed regular expressions.
 override sedesc = $(subst /,[/],$(subst $$,\$$,$(subst *,\*,$(subst .,\.,$(subst [,\[,$(subst ^,\^,$(subst \,\\,$1)))))))
 

+# The command to use for percent‐decoding.
+override perdeccmd := $(SED) 's/|/%7C/g;s/[\]/%5C/g;s/%[0123456789ABCDEFabcdef]\{2\}/|&|/g' | $(TR) '|' '\n' | $(SED) '/^%[0123456789ABCDEFabcdef]\{2\}$$/!s/%/|%25|/' | $(TR) '|' '\n' | $(AWK) '$$0!~/%/{printf "%s",$$0}/%/{d="0123456789ABCDEF";v=substr(toupper($$0),2,2);printf "\\%04o",(index(d,substr(v,1,1))-1)*16+index(d,substr(v,2,1))-1}' | $(xargsquote) | $(XARGS) -E '' $(PRINTF) '%b'
+

 # (callable) Percent‐decode the given strings.
 # (callable) Percent‐decode the given strings.

-override perdec = $(foreach encoded,$1,$(shell $(PRINTF) '%s\n' $(call quote,$(encoded)) | $(SED) 's/|/%7C/g;s/[\]/%5C/g;s/%[0-9A-Fa-f]\{2\}/|&|/g' | $(TR) '|' '\n' | $(SED) '/^%[0-9A-Fa-f]\{2\}$$/!s/%/|%25|/' | $(TR) '|' '\n' | $(AWK) '$$0!~/%/{printf("%s",$$0)}/%/{sub("%","0x");printf("\\%04o",$$0)}' | $(XARGS) -0 $(PRINTF) '%b'))
+#
+# ☡ This variable creates a subshell every time it is computed.
+override perdec = $(shell $(PRINTF) '%s\0450A' $(foreach encoded,$1,$(call quote,$(encoded))) | $(perdeccmd))

 
 # (callable) Percent‐encode the given strings.
 #
 # This singly‐encodes u·r·i characters and doubly‐encodes other characters, then calls `perdec´ to decode back to a single encoding.
 # The encoding assumes the input is a “u·r·i component”; e·g that the resulting string should only contain `pchar´ (but can contain any `sub-delim´).
 
 # (callable) Percent‐encode the given strings.
 #
 # This singly‐encodes u·r·i characters and doubly‐encodes other characters, then calls `perdec´ to decode back to a single encoding.
 # The encoding assumes the input is a “u·r·i component”; e·g that the resulting string should only contain `pchar´ (but can contain any `sub-delim´).

-override perenc = $(foreach unencoded,$1,$(call perdec,$(shell $(PRINTF) '%s' $(call quote,$(unencoded)) | $(OD) -t x1 | $(SED) 's/^[0-9]*//;s/2[146-9A-Ea-e]/%&/g;s/3[0-9AaBbDd]/%&/g;s/40/%&/g;s/[46][1-9A-Fa-f]/%&/g;s/[57][0-9Aa]/%&/g;s/5[Ff]/%&/g;s/7[Ee]/%&/g;s/[ ][0-9A-Fa-f]\{2\}/%25&/g' | $(TR) -d ' \n' | $(TR) 'abcdef' 'ABCDEF')))
+#
+# It is assumed that the given strings do not contain newlines.
+#
+# ☡ This variable creates a subshell every time it is computed.
+override perenc = $(shell $(PRINTF) '%s\n' $(foreach unencoded,$1,$(call quote,$(unencoded))) | $(OD) -t x1 | $(SED) 's/^[0123456789]*//;s/0[Aa]/%&/g;s/2[146789ABCDEabcde]/%&/g;s/3[0123456789AaBbDd]/%&/g;s/40/%&/g;s/[46][123456789ABCDEFabcdef]/%&/g;s/[57][0123456789Aa]/%&/g;s/5[Ff]/%&/g;s/7[Ee]/%&/g;s/[ ][0123456789ABCDEFabcdef]\{2\}/%25&/g' | $(TR) -d ' \n' | $(TR) 'abcdef' 'ABCDEF' | $(perdeccmd))

 
 # (callable) Percent‐encode each component in the given paths.
 #
 
 # (callable) Percent‐encode each component in the given paths.
 #

-# ☡ This will remove leading and trailing slashes.
-override pathenc = $(foreach path,$1,$(subst $(space),/,$(call perenc,$(subst /, ,$(path)))))
+# ☡ This variable creates a subshell every time it is computed.
+override pathenc = $(subst %2F,/,$(call perenc,$1))

 
 # (overridable) Collect all of the applicable includes from the includes directory.
 
 # (overridable) Collect all of the applicable includes from the includes directory.

-sourceincludes := $(shell $(FIND) $(foreach dir,$(INCLUDEDIR),$(call quote,$(dir))) '(' $(FINDRULES) ')' -a -type f)
+sourceincludes := $(if $(and $(INCLUDEDIR),$(wildcard $(INCLUDEDIR))),$(patsubst ./%,%,$(shell $(FIND) $(foreach dir,$(INCLUDEDIR),$(call quote,$(dir))) '(' $(FINDINCLUDERULES) ')' -a -type f -a -print)),)

 
 # (overridable) Collect all of the applicable source files from the source directory, removing any which are also includes.
 
 # (overridable) Collect all of the applicable source files from the source directory, removing any which are also includes.

-sourcefiles := $(filter-out $(sourceincludes),$(shell $(FIND) $(foreach dir,$(SRCDIR),$(call quote,$(dir))) '(' $(FINDRULES) ')' -a -type f))
-
-ifdef GIT
-ifneq ($(wildcard $(THISDIR)/.git),)
-# (overridable) The name of the current revision of ⛩️📰 书社, or its hash if the current revision is not a tag.
-thisrev = $(shell cd $(THISDIR); $(GIT) describe 2> /dev/null || $(GIT) rev-parse HEAD 2> /dev/null || true)
-endif
-
-ifneq ($(wildcard .git),)
-# (overridable) The name of the current revision of the working directory, or its hash if the current revision is not a tag.
-srcrev = $(shell $(GIT) describe 2> /dev/null || $(GIT) rev-parse HEAD 2> /dev/null || true)
-endif
-endif
+sourcefiles := $(if $(and $(SRCDIR),$(wildcard $(SRCDIR))),$(filter-out $(sourceincludes),$(patsubst ./%,%,$(shell $(FIND) $(foreach dir,$(SRCDIR),$(call quote,$(dir))) '(' $(FINDRULES) ')' -a -type f -a -print))))

 
 # Figure out the file type of each source file and source include.
 ifneq ($(wildcard $(BUILDDIR)/magic.mgc),)
 
 # Figure out the file type of each source file and source include.
 ifneq ($(wildcard $(BUILDDIR)/magic.mgc),)

-override types := $(shell $(SED) 's/^ *//;s/ *$$//;s/ {2,}/ /g' <<< $(call quote,$(sourcefiles) $(sourceincludes)) | $(TR) ' ' '\n' | $(FILE) -m $(call quote,$(BUILDDIR)/magic.mgc) --mime-type --separator '|' --files-from - | $(SED) 's/| */|/g')
+override types := $(shell $(PRINTF) '%s\n' $(call quote,$(sourcefiles) $(sourceincludes)) | $(SED) 's/^ *//;s/ *$$//;s/ {2,}/ /g' | $(TR) ' ' '\n' | $(FILE) -m $(call quote,$(BUILDDIR)/magic.mgc) --mime-type --separator '|' --files-from - | $(SED) 's/| */|/g')

 endif
 
 # Get the list of supported plaintext file types from the parser.
 ifneq ($(wildcard $(BUILDDIR)/parser.xslt),)
 endif
 
 # Get the list of supported plaintext file types from the parser.
 ifneq ($(wildcard $(BUILDDIR)/parser.xslt),)

-override plaintexttypes := $(filter-out $(XMLTYPES),$(shell $(XMLLINT) --xpath '/*/*[@name="书社:parsers"]//*[namespace-uri()="http://www.w3.org/1999/xhtml" and local-name()="dd"]/text()' $(call quote,$(BUILDDIR)/parser.xslt)))
+override plaintexttypes := $(filter-out $(XMLTYPES),$(shell $(XMLLINT) --noent --nonet --xpath '/*/*[@name="书社:parsers"]//*[namespace-uri()="http://www.w3.org/1999/xhtml" and local-name()="dd"]/text()' $(call quote,$(BUILDDIR)/parser.xslt)))

 endif
 
 endif
 

-# (callable) Get all of the files (source and includes) which have the given types.
-override filesoftype = $(foreach type,$1,$(patsubst %|$(type),%,$(filter %|$(type),$(types))))
+# (callable) Get all of the files (source and includes) which have the provided types.
+#
+# If a provided type begins with a `+´, it is analysed as a suffix, and all matching types will be used.
+override filesoftype = $(foreach typeorsuffix,$1,$(foreach type,$(if $(filter +%,$(typeorsuffix)),$(sort $(foreach suffixedtype,$(filter %$(typeorsuffix),$(types)),$(lastword $(subst |, ,$(suffixedtype))))),$(typeorsuffix)),$(patsubst %|$(type),%,$(filter %|$(type),$(types)))))

 
 # Build up collections of various file types.
 override xmlfiles := $(call filesoftype,$(XMLTYPES))
 
 # Build up collections of various file types.
 override xmlfiles := $(call filesoftype,$(XMLTYPES))


@@ -252,10 +370,7 @@ override plaintextfiles := $(filter-out $(xmlfiles),$(call filesoftype,$(plainte
 override assetfiles := $(filter-out $(xmlfiles) $(plaintextfiles),$(sourcefiles) $(sourceincludes))
 
 # (callable) Get the types of the given files.
 override assetfiles := $(filter-out $(xmlfiles) $(plaintextfiles),$(sourcefiles) $(sourceincludes))
 
 # (callable) Get the types of the given files.

-override typeoffile = $(patsubst $(foreach file,$1,$(file)|%),%,$(filter $(foreach file,$1,$(file)|%),$(types)))
-
-# (callable) Get the identifier for the given parser or transform.
-override id = $(or $(shell $(XMLLINT) --xpath '/*/*[local-name()="id" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"]/text()[1]' $1 2> /dev/null),about:shushe?$(or $2,unknown)=$(call pathenc,$(basename $(notdir $1))))
+override typeoffile = $(foreach file,$1,$(or $(patsubst $(file)|%,%,$(filter $(file)|%,$(types))),$(error Unable to get type of file `$(file)´)))

 
 # Pair each source magic file with its location in the build directory.
 override magicpair := $(foreach magicfile,$(MAGIC),$(magicfile)|$(BUILDDIR)/magic/$(notdir $(magicfile)))
 
 # Pair each source magic file with its location in the build directory.
 override magicpair := $(foreach magicfile,$(MAGIC),$(magicfile)|$(BUILDDIR)/magic/$(notdir $(magicfile)))


@@ -267,13 +382,15 @@ override magicsource = $(foreach magicpath,$1,$(patsubst %|$(magicpath),%,$(firs
 override magicfile = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,$(magicpair))))
 
 # (callable) Get the local path for the given source file.
 override magicfile = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,$(magicpair))))
 
 # (callable) Get the local path for the given source file.

-override sourcepath = $(firstword $(foreach directory,$(SRCDIR),$(if $(filter $(directory)/%,$1),$(patsubst $(directory)/%,%,$1),)))
+override sourcepath = $(or $(firstword $(foreach directory,$(SRCDIR),$(if $(filter .,$(directory)),$(wildcard $1),$(if $(filter $(directory)/%,$1),$(patsubst $(directory)/%,%,$1),)))),$(error Unable to get local path for source file `$1´))

 
 # (callable) Get the local path for the given include.
 
 # (callable) Get the local path for the given include.

-override includepath = $(firstword $(foreach directory,$(INCLUDEDIR),$(if $(filter $(directory)/%,$1),$(patsubst $(directory)/%,%,$1),)))
+override includepath = $(or $(firstword $(foreach directory,$(INCLUDEDIR),$(if $(filter .,$(directory)),$(wildcard $1),$(if $(filter $(directory)/%,$1),$(patsubst $(directory)/%,%,$1),)))),$(error Unable to get local path for include file `$1´))

 
 # (callable) Get base64 data u·r·i’s for the given files.
 
 # (callable) Get base64 data u·r·i’s for the given files.

-override datauri = $(foreach file,$1,data:$(call typeoffile,$(file));base64,$(shell $(UUENCODE) -m -r $(call quote,$(file)) _ | tr -d ' \n'))
+#
+# ☡ This variable creates a subshell every time it is computed.
+override datauri = $(foreach file,$1,data:$(call typeoffile,$(file));base64,$(shell $(UUENCODE) -m $(call quote,$(file)) _ | $(SED) '2,$$!d;$$d' | $(TR) -d ' \n'))

 
 # Pair each source file and include with its local u·r·i.
 override sourcelocalpair := $(foreach file,$(sourcefiles) $(sourceincludes),$(file)|about:shushe?$(if $(filter $(file),$(sourceincludes)),include=$(call pathenc,$(call includepath,$(file))),source=$(call pathenc,$(call sourcepath,$(file)))))
 
 # Pair each source file and include with its local u·r·i.
 override sourcelocalpair := $(foreach file,$(sourcefiles) $(sourceincludes),$(file)|about:shushe?$(if $(filter $(file),$(sourceincludes)),include=$(call pathenc,$(call includepath,$(file))),source=$(call pathenc,$(call sourcepath,$(file)))))


@@ -284,11 +401,11 @@ override localuri = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,
 # (callable) Get the source files for the given local uris.
 override sourcefile = $(foreach local,$1,$(patsubst %|$(local),%,$(filter %|$(local),$(sourcelocalpair))))
 
 # (callable) Get the source files for the given local uris.
 override sourcefile = $(foreach local,$1,$(patsubst %|$(local),%,$(filter %|$(local),$(sourcelocalpair))))
 

-# Adds a requirement on `$(BUILDDIR)/.update-types´ if the file is present.
+# Resolves to the `FORCE´ target if `$(BUILDDIR)/.update-types´ is present.

 #
 #

-# This file is created after a reload due to type changes, and is removed after.
-# Requiring it ensures that file classifications are up·to·date immediately after the reload.
-override typeupdates := $(wildcard $(BUILDDIR)/.update-types)
+# This file is created before a reload due to type changes, and is removed after.
+# This ensures that file classifications are up·to·date immediately after the reload.
+override typeupdates := $(if $(wildcard $(BUILDDIR)/.update-types),FORCE,)

 
 # Pair each source file and include with its parsed location.
 override sourceparsedpair := $(foreach file,$(sourcefiles) $(sourceincludes),$(file)|$(BUILDDIR)/$(if $(filter $(file),$(sourceincludes)),includes/$(call includepath,$(file)),sources/$(call sourcepath,$(file))))
 
 # Pair each source file and include with its parsed location.
 override sourceparsedpair := $(foreach file,$(sourcefiles) $(sourceincludes),$(file)|$(BUILDDIR)/$(if $(filter $(file),$(sourceincludes)),includes/$(call includepath,$(file)),sources/$(call sourcepath,$(file))))


@@ -299,9 +416,15 @@ override parsed = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,$(
 # (callable) Get the source files for the given parsed file.
 override unparsed = $(foreach file,$1,$(patsubst %|$(file),%,$(filter %|$(file),$(sourceparsedpair))))
 
 # (callable) Get the source files for the given parsed file.
 override unparsed = $(foreach file,$1,$(patsubst %|$(file),%,$(filter %|$(file),$(sourceparsedpair))))
 

+# Pair each parser, transform, or parsed file with its file u·r·i.
+override fileuripairs := $(join $(patsubst %,%|,$(PARSERS) $(TRANSFORMS) $(call parsed,$(sourcefiles) $(sourceincludes))),$(call pathenc,$(foreach uriable,$(PARSERS) $(TRANSFORMS) $(call parsed,$(sourcefiles) $(sourceincludes)),file://$(abspath $(uriable)))))
+
+# (callable) Get the file u·r·is for the given parsers, transforms, or parsed files.
+override fileuri = $(foreach file,$1,$(or $(patsubst $(file)|%,%,$(filter $(file)|%,$(fileuripairs))),$(error Unable to get file u·r·i for `$(file)´)))
+

 ifneq ($(wildcard $(BUILDDIR)/dependencies),)
 # Pair each file with a list of dependencies for it.
 ifneq ($(wildcard $(BUILDDIR)/dependencies),)
 # Pair each file with a list of dependencies for it.

-override dependenciesforfile := $(foreach file,$(sourcefiles),$(file)|$(subst $(space),|,$(shell $(CAT) $(call quote,$(BUILDDIR)/dependencies) | $(SED) $(call quote,/^$(call sedesc,$(call localuri,$(file)))$$/$(comma)/^[^  ]/!d;/^ /!d;s/^ //))))
+override dependenciesforfile := $(foreach file,$(filter-out $(assetfiles),$(sourcefiles) $(sourceincludes)),$(file)|$(subst $(space),|,$(shell $(SED) $(call quote,/^$(call sedesc,$(call localuri,$(file)))$$/$(comma)/^[^    ]/!d;/^ /!d;s/^ //) <$(call quote,$(BUILDDIR)/dependencies))))

 
 # (callable) Get the list of dependency leiris for the given source files.
 #
 
 # (callable) Get the list of dependency leiris for the given source files.
 #


@@ -309,9 +432,13 @@ override dependenciesforfile := $(foreach file,$(sourcefiles),$(file)|$(subst $(
 override dependencyuris = $(foreach file,$1,$(subst |, ,$(patsubst $(file)|%,%,$(filter $(file)|%,$(dependenciesforfile)))))
 
 # (callable) Get the list of recursive dependencies for the given source files.
 override dependencyuris = $(foreach file,$1,$(subst |, ,$(patsubst $(file)|%,%,$(filter $(file)|%,$(dependenciesforfile)))))
 
 # (callable) Get the list of recursive dependencies for the given source files.

+#
+# If the file cannot have dependencies (e·g is an asset file), the resulting value will be the empty string.

 override recursives = $(foreach uri,$(filter -%,$(call dependencyuris,$1)),$(call sourcefile,$(patsubst -%,%,$(uri))))
 
 # (callable) Get the list of (nonrecursive) dependencies for the given source files.
 override recursives = $(foreach uri,$(filter -%,$(call dependencyuris,$1)),$(call sourcefile,$(patsubst -%,%,$(uri))))
 
 # (callable) Get the list of (nonrecursive) dependencies for the given source files.

+#
+# If the file cannot have dependencies (e·g is an asset file), the resulting value will be the empty string.

 override dependencies = $(foreach uri,$(filter-out -%,$(call dependencyuris,$1)),$(call sourcefile,$(uri)))
 endif
 
 override dependencies = $(foreach uri,$(filter-out -%,$(call dependencyuris,$1)),$(call sourcefile,$(uri)))
 endif
 


@@ -335,176 +462,280 @@ override destinations := $(shell $(CAT) $(BUILDDIR)/destinations)
 # Pair source files and their destinations.
 override sourcedestinationpair := $(foreach destination,$(destinations),$(call sourcefile,$(firstword $(subst |, ,$(destination))))|$(call perdec,$(subst $(space),|,$(wordlist 2,$(words $(subst |, ,$(destination))),$(subst |, ,$(destination))))))
 
 # Pair source files and their destinations.
 override sourcedestinationpair := $(foreach destination,$(destinations),$(call sourcefile,$(firstword $(subst |, ,$(destination))))|$(call perdec,$(subst $(space),|,$(wordlist 2,$(words $(subst |, ,$(destination))),$(subst |, ,$(destination))))))
 

-# (callable) Get the destination for the given source files.
-override destination = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,$(sourcedestinationpair))))
+# (callable) Get the destination for the given source files, or return `NOTDEF´.
+#
+# The fallback here is because destinations are used to generate targets and thus must always be non·empty, even when they haven’t been generated yet.
+override destination = $(foreach file,$1,$(or $(patsubst $(file)|%,%,$(filter $(file)|%,$(sourcedestinationpair))),NOTDEF))

 
 # Pair each source file with its compiled location.
 
 # Pair each source file with its compiled location.

-override sourcecompiledpair := $(foreach file,$(sourcefiles),$(file)|$(BUILDDIR)/public/$(call destination,$(file)))
+override sourcecompiledpair := $(foreach file,$(sourcefiles),$(file)|$(BUILDDIR)/results/$(call destination,$(file)))

 
 # (callable) Get the location of the transformed X·M·L files for the given source files.
 override compiled = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,$(sourcecompiledpair))))
 
 
 # (callable) Get the location of the transformed X·M·L files for the given source files.
 override compiled = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,$(sourcecompiledpair))))
 

-# (callable) Get the source files for the given compiled file.
+# (callable) Get the location of the source files for the given compiled file.

 override uncompiled = $(foreach file,$1,$(patsubst %|$(file),%,$(filter %|$(file),$(sourcecompiledpair))))
 
 override uncompiled = $(foreach file,$1,$(patsubst %|$(file),%,$(filter %|$(file),$(sourcecompiledpair))))
 

+# (callable) Get the location of the final built files for the given source files.
+override built = $(foreach file,$1,$(patsubst $(BUILDDIR)/results/%,$(BUILDDIR)/public/%,$(call compiled,$(file))))
+
+# (callable) Get the location of the source files for the given built files.
+override unbuilt = $(foreach file,$1,$(call uncompiled,$(patsubst $(BUILDDIR)/public/%,$(BUILDDIR)/results/%,$(file))))
+

 # (callable) Get the installed locations for the given source files.
 override installed = $(foreach file,$1,$(DESTDIR)/$(call destination,$(file)))
 endif
 
 # ─ ¶ Recipe Variable Definitions ─────────────────────────────────────
 
 # (callable) Get the installed locations for the given source files.
 override installed = $(foreach file,$1,$(DESTDIR)/$(call destination,$(file)))
 endif
 
 # ─ ¶ Recipe Variable Definitions ─────────────────────────────────────
 

-# (callable) Check to see if the given directory exists and create it if not.
-override ensuredirectory = if $(TEST) ! -d $(call quote,$1); then $(MKDIR) -p $(call quote,$1); fi
+# (callable) Get the identifier for the given parser or transform.
+override id = $(XMLLINT) --noent --nonet --xpath '/*/*[local-name()="id" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"]/text()[1]' $(call quote,$1) 2>>/dev/null || $(PRINTF) '%s\n' $(call quote,about:shushe?$(or $2,unknown)=$(call pathenc,$(basename $(notdir $1))))

 
 # (callable) Sanitize and wrap the provided plaintext file in X·M·L, printing to `stdout´.
 
 # (callable) Sanitize and wrap the provided plaintext file in X·M·L, printing to `stdout´.

-override wrapplaintext = $(PRINTF) '%s\n' "$$($(PRINTF) '%b' '<?xml version=\042\061.0\042?>\n<script xmlns=\042http://www.w3.org/1999/xhtml\042 type=\042$(call typeoffile,$1)\042><![CDATA['; $(CAT) $(call quote,$1) | $(TR) '\000\013\014' '\032\011\012' | $(SED) $$($(PRINTF) '%s%b' 's/]]>/]]]]><!\[CDATA\[>/g;s/\xEF\xBF\xBE/�/g;s/\xEF\xBF\xBF/�/g;$$!s/\r$$//g;s/\r/\n/g;$$!s/\xC2\x85$$//g;s/\xC2\x85/\n/g;s/\xE2\x80\xA8/\n/g;' 's/[\0001-\0010]/�/g;s/[\0016-\0037]/�/g'); $(PRINTF) '%s' ']]></script>')"
+override wrapplaintext = { $(PRINTF) '%s\n%s' '<?xml version="1.0"?>' '<script xmlns="http://www.w3.org/1999/xhtml" type="$(call typeoffile,$1)"><![CDATA['; $(TR) '\000\013\014' '\032\011\012' <$(call quote,$1) | $(SED) "$$($(PRINTF) '%b' 's/]]>/]]]]><!\\[CDATA\\[>/g\ns/\0357\0277\0276/�/g\ns/\0357\0277\0277/�/g\n$$!s/\\r$$//g\ns/\\r/\\n/g\n$$!s/\0302\0205$$//g\ns/\0302\0205/\\n/g\ns/\0342\0200\0250/\\n/g\ns/[\0001\0002\0003\0004\0005\0006\0007\0010]/�/g\ns/[\0016\0017\0020\0021\0022\0023\0024\0025\0026\0027\0031\0032\0033\0034\0035\0036\0037]/�/g')"; $(PRINTF) '%s\n' ']]></script>'; }

 
 

-# ─ ¶ Phony Targets ───────────────────────────────────────────────────
+# (callable) Check if the provided X·M·L file is X·M·L 1.1, and if so, coerce to X·M·L 1.0 as best as possible, printing the result (or the original file contents) to `stdout´.
+#
+# The X·M·L declaration will be dropped and character escapes for C0 control codes will be replaced with a literal `U+0091 PRIVATE USE ONE´, which is invalid in X·M·L 1.1, but valid X·M·L 1.0 (making the replacement obvious).
+#
+# This isn’t a perfect substitution (it makes some assumptions about the format of the underlying X·M·L), but it should be workable for most sensible, welformed files.
+override serializexml = $(SED) "$$($(PRINTF) '%b' '/<?xml[ \t]\\{1,\\}version=[\0042\0047]1.1/,$${ s/<?xml[^>]*?>/<!--<?xml version=\00421.1\0042?>-->/\n s/&\0043x0*[12345678BCEFbcef];/\0302\0221/g\n s/&\0043x0*1[0123456789ABCDEFabcdef];/\0302\0221/g\n s/&\00430*[12345678];/\0302\0221/g\n s/&\00430*1[12456789];/\0302\0221/g\n s/&\00430*2[0123456789];/\0302\0221/g\n s/&\00430*3[01];/\0302\0221/g\n}')" <$(call quote,$1) | $(SED) "$$($(PRINTF) '%b' ':a\n/^\\n*$$/{ $$d\n N\n ba\n}')"

 
 

-# Provide help.
-help:
-       @$(PRINTF) '%b' '$(subst $(newline),\n,$(makefileinfo))'
+# ─ ¶ Phony Targets ───────────────────────────────────────────────────

 
 # Compile all files, or error if any are recursive.
 
 # Compile all files, or error if any are recursive.

-all: $(call compiled,$(recursivefiles) $(compilablefiles));
+all : $(call built,$(recursivefiles) $(installablefiles)) ;

 
 # Destroy buildfiles.
 
 # Destroy buildfiles.

-clean:
-       $(if $(BUILDDIR),$(silent)$(RM) -rf $(call quote,$(BUILDDIR)/),)
+clean :
+       $(if $(BUILDDIR),$(silent)$(RM) -f -R $(call quote,$(BUILDDIR)/),)

 
 # Destroy build directory and installed files.
 
 # Destroy build directory and installed files.

-gone: clean uninstall;
+gone : clean uninstall ;
+
+# Provide help.
+help :
+       @$(PRINTF) '%b' '$(subst $(newline),\n,$(makefileinfo))'

 
 # Install the compiled files into `DESTDIR´, or error if any are recursive.
 
 # Install the compiled files into `DESTDIR´, or error if any are recursive.

-install: $(call installed,$(recursivefiles) $(installablefiles));
+install : $(call installed,$(recursivefiles) $(installablefiles)) ;

 
 # List all source files and includes and their computed types.
 
 # List all source files and includes and their computed types.

-list:
-       @$(PRINTF) '%b' $(call quote,$(foreach file,$(sort $(sourcefiles)) $(sort $(sourceincludes)),\0033[1m$(file)\0033[22m|$(call typeoffile,$(file))|[\0033[3m$(if $(filter $(file),$(xmlfiles)),xml,$(if $(filter $(file),$(plaintextfiles)),text,asset))$(if $(filter $(file),$(sourceincludes)),|include,)\0033[23m]$(if $(call dependencies,$(file))$(call recursives,$(file)), $(strip $(foreach recursive,$(call recursives,$(file)),\0033[93;41m•|Recursive|Dependency|\0033[39;49m|$(recursive)) $(foreach dependency,$(call dependencies,$(file)),\0033[2m•|Dependency|\0033[22m|$(dependency))))$(if $(filter $(file),$(sourcefiles)), →|<\0033[4m/$(call destination,$(file))\0033[24m>,) )) | $(TR) ' |' '\n '
+list :
+       @$(PRINTF) '%b' $(call quote,$(foreach file,$(sort $(sourcefiles)) $(sort $(sourceincludes)),\0033[1m$(file)\0033[22m|$(call typeoffile,$(file))|[\0033[3m$(if $(filter $(file),$(xmlfiles)),xml,$(if $(filter $(file),$(plaintextfiles)),text,asset))$(if $(filter $(file),$(sourceincludes)),|include,)\0033[23m] Modified:|$(call modtime,$(file))$(if $(call dependencies,$(file))$(call recursives,$(file)), $(strip $(foreach recursive,$(call recursives,$(file)),\0033[93;41m•|Recursive|Dependency|\0033[39;49m|$(recursive)) $(foreach dependency,$(call dependencies,$(file)),\0033[2m•|Dependency|\0033[22m|$(dependency))))$(if $(filter $(file),$(sourcefiles)), →|<\0033[4m/$(call destination,$(file))\0033[24m>,) )) | $(TR) ' |' '\n '

 
 

-# Destroy build directory and installed files.
-uninstall:
+# Lists out the destinations of all resulting files (relative to `DESTDIR´).
+listout :
+       @$(PRINTF) '%s\n' $(call quote,$(foreach file,$(sort $(sourcefiles)),$(call destination,$(file))))
+
+# Destroy installed files.
+uninstall :

        $(foreach file,$(installablefiles),$(if $(wildcard $(call installed,$(file))),$(silent)$(PRINTF) '%s\n' $(call quote,Removing </$(patsubst $(DESTDIR)/%,%,$(call installed,$(file)))>…)$(newline)$(silent)$(RM) -f $(call quote,$(call installed,$(file)))$(newline),))
 
 # Raise an error when attempting to build any files with recursive dependencies.
        $(foreach file,$(installablefiles),$(if $(wildcard $(call installed,$(file))),$(silent)$(PRINTF) '%s\n' $(call quote,Removing </$(patsubst $(DESTDIR)/%,%,$(call installed,$(file)))>…)$(newline)$(silent)$(RM) -f $(call quote,$(call installed,$(file)))$(newline),))
 
 # Raise an error when attempting to build any files with recursive dependencies.

-$(call compiled,$(recursivefiles)):
-       @$(PRINTF) '%b\n' $(call quote,\0033[93;41mError:\0033[39;49m `$(call uncompiled,$@)´ has recursive dependencies:\n$(subst |, ,$(subst $(space),$(newline),$(foreach recursive,$(call recursives,$(call uncompiled,$@)),•|$(recursive))))) && false
+$(call built,$(recursivefiles)) :
+       @$(PRINTF) '%b\n' $(call quote,\0033[93;41mError:\0033[39;49m `$(call unbuilt,$@)´ has recursive dependencies:\n$(subst |, ,$(subst $(space),$(newline),$(foreach recursive,$(call recursives,$(call unbuilt,$@)),•|$(recursive))))) >&2 && exit 1
+
+# Add as a prerequisite to treat the target as tho it were phony.
+FORCE : ;

 
 # ─ ¶ Special Targets ─────────────────────────────────────────────────
 
 # Perform secondary expansion; this enables pattern rules to determine their prerequisites based on the matched pattern.
 
 # ─ ¶ Special Targets ─────────────────────────────────────────────────
 
 # Perform secondary expansion; this enables pattern rules to determine their prerequisites based on the matched pattern.

-.SECONDEXPANSION: ;
+.SECONDEXPANSION : ;

 
 # Don’t use any implicit rules.
 
 # Don’t use any implicit rules.

-.SUFFIXES: ;
+.SUFFIXES : ;
+
+# Don’t delete these files even if Make is stopped in the process of rebuilding them.
+.PRECIOUS : GNUmakefile ;

 
 # Phony rules; always consider these out·of·date.
 
 # Phony rules; always consider these out·of·date.

-.PHONY: all default clean gone info install list uninstall $(call compiled,$(recursivefiles));
+.PHONY : FORCE all default clean gone info install list listout uninstall $(call built,$(recursivefiles)) ;

 
 

-ifneq ($(wildcard $(BUILDDIR)/.update-types)$(wildcard $(BUILDDIR)/dependencies)$(wildcard $(BUILDDIR)/destinations),)
+ifneq ($(typeupdates)$(wildcard $(BUILDDIR)/dependencies)$(wildcard $(BUILDDIR)/destinations),)

 # Reload this make·file if the dependency graph or output destinations have changed.
 #
 # The dependency graph and output destinations are used to set the values of variables in this make·file, so it’s important to ensure that they are actually up·to·date prior to executing any later rules.
 #
 # This recipe only exists after types have been updated or when the dependency graph or destinations file already exists.
 # Reload this make·file if the dependency graph or output destinations have changed.
 #
 # The dependency graph and output destinations are used to set the values of variables in this make·file, so it’s important to ensure that they are actually up·to·date prior to executing any later rules.
 #
 # This recipe only exists after types have been updated or when the dependency graph or destinations file already exists.

-$(THISDIR)/GNUmakefile:: $(BUILDDIR)/dependencies $(BUILDDIR)/destinations
+#
+# ※ There is a chance that generating the dependencies will also update the parsers.
+$(THISDIR)/GNUmakefile :: $(BUILDDIR)/dependencies $(BUILDDIR)/destinations

        $(silent)$(TOUCH) $(THISDIR)/GNUmakefile
        $(silent)$(TOUCH) $(THISDIR)/GNUmakefile

-       $(silent)$(RM) -f $(BUILDDIR)/.update-types
-       @$(PRINTF) '%b\n' '\0033[1mDependency graph and output destinations updated. Restarting…\0033[22m'
+ifeq ($(typeupdates),)
+       $(call inform,if $(TEST) ! -f $(call quote,$(BUILDDIR)/.update-types); then $(PRINTF) '%b\n' '\0033[1mDependency graph and output destinations updated. Restarting…\0033[22m' >&2; fi)
+else
+       $(silent)$(RM) $(call quote,$(BUILDDIR)/.update-types)
+       $(call inform,$(PRINTF) '%b\n' '\0033[1mDependency graph and output destinations updated. Restarting…\0033[22m' >&2)
+endif

 endif
 
 endif
 

-ifeq ($(wildcard $(BUILDDIR)/.update-types),)
+ifeq ($(typeupdates),)

 # Reload this make·file if any of the magic files or parsers have changed.
 #
 # These are used to classify source files, so if they have changed then the make·file must be reloaded.
 #
 # This recipe sleeps for one second to ensure that files built after the restart have a more current time·stamp.
 # Reload this make·file if any of the magic files or parsers have changed.
 #
 # These are used to classify source files, so if they have changed then the make·file must be reloaded.
 #
 # This recipe sleeps for one second to ensure that files built after the restart have a more current time·stamp.

-$(THISDIR)/GNUmakefile:: $(BUILDDIR)/magic.mgc $(BUILDDIR)/parser.xslt
+$(THISDIR)/GNUmakefile :: $(BUILDDIR)/magic.mgc $(BUILDDIR)/parser.xslt

        $(silent)$(TOUCH) $(THISDIR)/GNUmakefile
        $(silent)$(RM) -f $(call quote,$(BUILDDIR)/dependencies) $(call quote,$(BUILDDIR)/destinations)
        $(silent)$(TOUCH) $(THISDIR)/GNUmakefile
        $(silent)$(RM) -f $(call quote,$(BUILDDIR)/dependencies) $(call quote,$(BUILDDIR)/destinations)

-       @$(PRINTF) '%b\n' '\0033[1mMagic file or parsers have updated. Restarting…\0033[22m'
+       $(call inform,$(PRINTF) '%b\n' '\0033[1mMagic file or parsers have updated. Restarting…\0033[22m' >&2)

        $(silent)$(SLEEP) 1
        $(silent)$(TOUCH) $(call quote,$(BUILDDIR)/.update-types)
 endif
 
 # ─ ¶ Build Targets ───────────────────────────────────────────────────
 
        $(silent)$(SLEEP) 1
        $(silent)$(TOUCH) $(call quote,$(BUILDDIR)/.update-types)
 endif
 
 # ─ ¶ Build Targets ───────────────────────────────────────────────────
 

-# Create symbolic links from the build directory’s store of magic files
-# to their corresponding sources.
-$(call magicfile,$(MAGIC)): $(BUILDDIR)/magic/%: $$(call magicsource,$$@)
+# Create symbolic links from the build directory’s store of magic files to their corresponding sources.
+$(call magicfile,$(MAGIC)) : $(BUILDDIR)/magic/% : $$(call magicsource,$$@)

        $(silent)$(call ensuredirectory,$(dir $@))
        $(silent)$(LN) -sf $(call quote,$(realpath $<)) $(call quote,$@)
 
 # Generate the compiled magic file from its sources.
 #
 # It must be updated if any of the files in the magic directory change.
        $(silent)$(call ensuredirectory,$(dir $@))
        $(silent)$(LN) -sf $(call quote,$(realpath $<)) $(call quote,$@)
 
 # Generate the compiled magic file from its sources.
 #
 # It must be updated if any of the files in the magic directory change.

-# It ⁜also⁜ should be updated if any of the files in the magic directory are deleted, but this isn’t tracked presently.
-$(BUILDDIR)/magic.mgc: $(call magicfile,$(MAGIC))
+$(BUILDDIR)/magic.mgc : $(call diffprereqs,magic,$(sort $(call magicfile,$(MAGIC))))

        $(foreach outdated,$(filter-out $^,$(wildcard $(BUILDDIR)/magic/*)),$(silent)$(RM) $(call quote,$(outdated))$(newline))
        $(foreach outdated,$(filter-out $^,$(wildcard $(BUILDDIR)/magic/*)),$(silent)$(RM) $(call quote,$(outdated))$(newline))

-       @$(ECHO) "Compiling new magic…"
+       $(call inform,$(PRINTF) '%s\n' 'Compiling new magic…' >&2)

        $(silent)$(call ensuredirectory,$(dir $@))
        $(silent)$(call ensuredirectory,$(dir $@))

-       $(silent)cd $(call quote,$(BUILDDIR)) && $(FILE) -C -m $(call quote,$(realpath $(BUILDDIR)/magic))
+       $(silent)$(CD) $(call quote,$(BUILDDIR)) && $(FILE) -C -m $(call quote,$(realpath $(BUILDDIR)/magic))
+       $(silent)$(TOUCH) $(call quote,$(BUILDDIR)/.update-types)

 
 # Generate the main parser.
 
 # Generate the main parser.

-$(BUILDDIR)/parser.catalog: $(PARSERS)
-       @$(ECHO) "Generating catalog of parsers…"
+$(BUILDDIR)/parser.catalog : $(call diffprereqs,parsers,$(sort $(PARSERS)))
+       $(call inform,$(PRINTF) '%s\n' 'Generating catalog of parsers…' >&2)

        $(silent)$(XMLCATALOG) --create --noout $(call quote,$@)
        $(silent)$(XMLCATALOG) --create --noout $(call quote,$@)

-       $(foreach parser,$(PARSERS),$(silent)$(XMLCATALOG) --add uri $(call quote,$(call id,$(parser),parser)) $(call quote,file:///$(call pathenc,$(abspath $(parser)))) --noout $(call quote,$@)$(newline))
-$(BUILDDIR)/parser.xslt: $(BUILDDIR)/parser.catalog $(THISDIR)/lib/catalog2parser.xslt
-       @$(ECHO) "Generating main parser…"
-       $(silent)$(XSLTPROC) -o $(call quote,$@) $(call quote,$(THISDIR)/lib/catalog2parser.xslt) $(call quote,$<)
+       $(foreach parser,$(PARSERS),$(silent){ $(call id,$(parser)); $(PRINTF) '%s\n' $(call quote,$(call fileuri,$(parser))) '--noout' $(call quote,$@); } | $(xargsmultiquote) | $(XARGS) -E '' $(XMLCATALOG) --add uri$(newline))
+$(BUILDDIR)/parser.xslt : $(BUILDDIR)/parser.catalog $(THISDIR)/lib/catalog2parser.xslt
+       $(call inform,$(PRINTF) '%s\n' 'Generating main parser…' >&2)
+       $(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) $(call quote,$(THISDIR)/lib/catalog2parser.xslt) $(call quote,$<)
+       $(silent)$(TOUCH) $(call quote,$(BUILDDIR)/.update-types)

 
 # Parse the files.
 #
 # Even plain X·M·L files are parsed, because they may contain X·H·T·M·L `<script>´ elements which contain other kinds of data.
 # Asset files are turned into H·T·M·L embeds pointing to `data:´ U·R·I’s.
 
 # Parse the files.
 #
 # Even plain X·M·L files are parsed, because they may contain X·H·T·M·L `<script>´ elements which contain other kinds of data.
 # Asset files are turned into H·T·M·L embeds pointing to `data:´ U·R·I’s.

-$(call parsed,$(sourcefiles) $(sourceincludes)): %: $$(call unparsed,$$@) $(typeupdates)
-       @$(PRINTF) '%s\n' $(call quote,Processing `$<´…)
+$(call parsed,$(sourcefiles) $(sourceincludes)) : % : $$(call unparsed,$$@) $(BUILDDIR)/parser.xslt $(typeupdates)
+       $(call inform,$(PRINTF) '%s\n' $(call quote,Processing `$<´…) >&2)

        $(silent)$(call ensuredirectory,$(dir $@))
        $(silent)$(call ensuredirectory,$(dir $@))

-       $(silent)$(if $(filter $<,$(assetfiles)),$(PRINTF) '%s\n' $(call quote,<object xmlns="http://www.w3.org/1999/xhtml" type="$(call typeoffile,$<)" data="$(call datauri,$<)"/>) > $(call quote,$@),$(if $(filter $<,$(plaintextfiles)),$(call wrapplaintext,$<),$(CAT) $(call quote,$<)) | $(XSLTPROC) -o $(call quote,$@) --stringparam BUILDTIME '$(shell TZ= $(DATE) '+%Y-%m-%dT%H:%M:%SZ')' --stringparam SRCTIME '$(shell TZ= $(STAT) -f '%Sm' -t '%Y-%m-%dT%H:%M:%SZ' $(call quote,$(call unparsed,$@)))'$(if $(thisrev), --stringparam VERSION $(call quote,$(thisrev)),)$(if $(srcrev), --stringparam SRCREV $(call quote,$(srcrev)),) $(call quote,$(BUILDDIR)/parser.xslt) -)
+       $(silent)$(if $(filter $<,$(assetfiles)),$(PRINTF) '%s\n' $(call quote,<?xml version="1.0"?><object xmlns="http://www.w3.org/1999/xhtml" type="$(call typeoffile,$<)" data="$(call datauri,$<)"/>) >|$(call quote,$@),$(if $(filter $<,$(plaintextfiles)),$(call wrapplaintext,$<),$(call serializexml,$<)) | $(XSLTPROC) --nonet --novalid -o $(call quote,$@) --stringparam BUILDTIME $$($(DATE) -u '+%Y-%m-%dT%H:%M:%SZ') --stringparam IDENTIFIER $(call quote,$(call localuri,$<)) --stringparam SRCTIME '$(call modtime,$<)' --stringparam CKSUM $$($(CKSUM) $(call quote,$<) | $(SED) 's/[ ].*//')$(if $(THISREV), --stringparam THISREV $(call quote,$(THISREV)),)$(if $(SRCREV), --stringparam SRCREV $(call quote,$(SRCREV)),) $(call quote,$(BUILDDIR)/parser.xslt) -)

 
 # Generate a catalog of all parsed files, for use when processing includes.
 #
 # This does not depend on actually transforming the files.
 
 # Generate a catalog of all parsed files, for use when processing includes.
 #
 # This does not depend on actually transforming the files.

-$(BUILDDIR)/catalog: $(sourcefiles) $(sourceincludes) $(typeupdates)
-       @$(ECHO) "Generating catalog of parsed files…"
+$(BUILDDIR)/catalog : $(call diffprereqs,sources,$(sort $(sourcefiles) $(sourceincludes))) $(typeupdates)
+       $(call inform,$(PRINTF) '%s\n' 'Generating catalog of parsed files…' >&2)

        $(silent)$(XMLCATALOG) --create --noout $(call quote,$@)
        $(silent)$(XMLCATALOG) --create --noout $(call quote,$@)

-       $(foreach source,$(sourcefiles) $(sourceincludes),$(silent)$(XMLCATALOG) --add uri $(call quote,$(call localuri,$(source))) $(call quote,file:///$(call pathenc,$(abspath $(call parsed,$(source))))#$(if $(filter $(source),$(assetfiles)),asset,xml)) --noout $(call quote,$@)$(newline))
+       $(foreach source,$(sourcefiles) $(sourceincludes),$(silent)$(XMLCATALOG) --add uri $(call quote,$(call localuri,$(source))) $(call quote,$(call fileuri,$(call parsed,$(source)))#$(if $(filter $(source),$(assetfiles)),asset,xml)) --noout $(call quote,$@)$(newline))

 
 # Build a list of dependencies for each parsed file.
 
 # Build a list of dependencies for each parsed file.

-$(BUILDDIR)/dependencies: $(BUILDDIR)/catalog $(call parsed,$(plaintextfiles) $(xmlfiles)) $(THISDIR)/lib/catalog2dependencies.xslt
-       @$(ECHO) "Identifying dependencies…"
-       $(silent)$(XSLTPROC) -o $(call quote,$@) $(call quote,$(THISDIR)/lib/catalog2dependencies.xslt) $(call quote,$<)
+$(BUILDDIR)/dependencies : $(BUILDDIR)/catalog $(call parsed,$(plaintextfiles) $(xmlfiles)) $(THISDIR)/lib/catalog2dependencies.xslt
+       $(call inform,$(PRINTF) '%s\n' 'Identifying dependencies…' >&2)
+       $(silent)$(TOUCH) $(call quote,$@)
+       $(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) $(call quote,$(THISDIR)/lib/catalog2dependencies.xslt) $(call quote,$<)

 
 # Generate a catalog of destinations for files.
 #
 # This depends on parsing non·asset source files, but not assets or includes.
 # It does not require knowing the dependencies.
 
 # Generate a catalog of destinations for files.
 #
 # This depends on parsing non·asset source files, but not assets or includes.
 # It does not require knowing the dependencies.

-$(BUILDDIR)/destinations: $(BUILDDIR)/catalog $(call parsed,$(filter-out $(assetfiles),$(sourcefiles))) $(THISDIR)/lib/catalog2destinations.xslt
-       @$(ECHO) "Identifying output destinations…"
-       $(silent)$(XSLTPROC) -o $(call quote,$@) $(call quote,$(THISDIR)/lib/catalog2destinations.xslt) $(call quote,$<)
+$(BUILDDIR)/destinations : $(BUILDDIR)/catalog $(call parsed,$(filter-out $(assetfiles),$(sourcefiles))) $(THISDIR)/lib/catalog2destinations.xslt
+       $(call inform,$(PRINTF) '%s\n' 'Identifying output destinations…' >&2)
+       $(silent)$(TOUCH) $(call quote,$@)
+       $(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) $(call quote,$(THISDIR)/lib/catalog2destinations.xslt) $(call quote,$<)

 
 # Generate the main transform.
 
 # Generate the main transform.

-$(BUILDDIR)/transform.catalog: $(TRANSFORMS)
-       @$(ECHO) "Generating catalog of transforms…"
+$(BUILDDIR)/transform.catalog : $(call diffprereqs,transforms,$(sort $(TRANSFORMS)))
+       $(call inform,$(PRINTF) '%s\n' 'Generating catalog of transforms…' >&2)

        $(silent)$(XMLCATALOG) --create --noout $(call quote,$@)
        $(silent)$(XMLCATALOG) --create --noout $(call quote,$@)

-       $(foreach transform,$(TRANSFORMS),$(silent)$(XMLCATALOG) --add uri $(call quote,$(call id,$(transform),transform)) $(call quote,file:///$(call pathenc,$(abspath $(transform)))) --noout $(call quote,$@)$(newline))
-$(BUILDDIR)/transform.xslt: $(BUILDDIR)/transform.catalog $(THISDIR)/lib/catalog2transform.xslt
-       @$(ECHO) "Generating main transform…"
-       $(silent)$(XSLTPROC) -o $(call quote,$@) $(call quote,$(THISDIR)/lib/catalog2transform.xslt) $(call quote,$<)
+       $(foreach transform,$(TRANSFORMS),$(silent){ $(call id,$(transform)); $(PRINTF) '%s\n' $(call quote,$(call fileuri,$(transform))) '--noout' $(call quote,$@); } | $(xargsmultiquote) | $(XARGS) -E '' $(XMLCATALOG) --add uri$(newline))
+$(BUILDDIR)/transform.xslt : $(BUILDDIR)/transform.catalog $(THISDIR)/lib/catalog2transform.xslt
+       $(call inform,$(PRINTF) '%s\n' 'Generating main transform…' >&2)
+       $(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) $(call quote,$(THISDIR)/lib/catalog2transform.xslt) $(call quote,$<)
+
+# Compile the result files using the dependencies as necessary.
+$(call compiled,$(compilablefiles)) : $(BUILDDIR)/results/% : $$(call parsed,$$(call uncompiled,$$@)) $(BUILDDIR)/transform.xslt $$(call parsed,$$(call dependencies,$$(call uncompiled,$$@)))
+       $(call inform,$(PRINTF) '%s\n' $(call quote,Compiling </$*>…) >&2)
+       $(silent)$(call ensuredirectory,$(dir $@))
+       $(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) --stringparam CATALOG 'catalog' --stringparam BUILDTIME $$($(DATE) -u '+%Y-%m-%dT%H:%M:%SZ') --stringparam SRCTIME '$(call modtime,$(call uncompiled,$@))' --stringparam IDENTIFIER $(call quote,$(call localuri,$(call uncompiled,$@))) --stringparam PATH $(call quote,/$*) --stringparam CKSUM $$($(CKSUM) $(call quote,$(call uncompiled,$@)) | $(SED) 's/[ ].*//')$(if $(THISREV), --stringparam THISREV $(call quote,$(THISREV)),)$(if $(SRCREV), --stringparam SRCREV $(call quote,$(SRCREV)),) $(call quote,$(BUILDDIR)/transform.xslt) $(call quote,$<)

 
 

-# Generate the output files using the dependencies as necessary.
-$(call compiled,$(compilablefiles)): $(BUILDDIR)/public/%: $$(call parsed,$$(call uncompiled,$$@)) $(BUILDDIR)/transform.xslt $$(call parsed,$$(call dependencies,$$(call uncompiled,$$@)))
+# Create the final files from the compiled results (or error in the case of recursive ones).
+$(call built,$(compilablefiles)) : $(BUILDDIR)/public/% : $(BUILDDIR)/results/%
+       $(call inform,$(PRINTF) '%s\n' $(call quote,Building </$*>…) >&2)

        $(silent)$(call ensuredirectory,$(dir $@))
        $(silent)$(call ensuredirectory,$(dir $@))

-       @$(PRINTF) '%s\n' $(call quote,Compiling </$*>…)
-       $(silent)$(XSLTPROC) -o $(call quote,$@) --stringparam CATALOG 'catalog' --stringparam BUILDTIME '$(shell TZ= $(DATE) '+%Y-%m-%dT%H:%M:%SZ')' --stringparam SRCTIME '$(shell TZ= $(STAT) -f '%Sm' -t '%Y-%m-%dT%H:%M:%SZ' $(call quote,$(call uncompiled,$@)))' --stringparam PATH $(call quote,/$*)$(if $(thisrev), --stringparam VERSION $(call quote,$(thisrev)),)$(if $(srcrev), --stringparam SRCREV $(call quote,$(srcrev)),) $(call quote,$(BUILDDIR)/transform.xslt) $(call quote,$<)
-$(call compiled,$(filter $(assetfiles),$(sourcefiles))): $(BUILDDIR)/public/%: $$(call uncompiled,$$@)
-       @$(PRINTF) '%s\n' $(call quote,Compiling </$*>…)
+       $(silent)$(RM) -f -R $(call quote,$@)
+       $(silent)$(call processresultto,$<,$@,$*)
+$(call built,$(filter $(assetfiles),$(sourcefiles))) : $(BUILDDIR)/public/% : $$(call unbuilt,$$@)
+       $(call inform,$(PRINTF) '%s\n' $(call quote,Building </$*>…) >&2)

        $(silent)$(call ensuredirectory,$(dir $@))
        $(silent)$(call ensuredirectory,$(dir $@))

+       $(silent)$(RM) -f -R $(call quote,$@)

        $(silent)$(CP) $(call quote,$<) $(call quote,$@)
 
 # Install compiled files (or error in the case of recursive ones).
        $(silent)$(CP) $(call quote,$<) $(call quote,$@)
 
 # Install compiled files (or error in the case of recursive ones).

-$(call installed,$(filter $(assetfiles),$(sourcefiles)) $(recursivefiles) $(compilablefiles)): $(DESTDIR)/%: $(BUILDDIR)/public/%
-       @$(PRINTF) '%s\n' $(call quote,Installing </$*>…)
+$(call installed,$(recursivefiles) $(installablefiles)) : $(DESTDIR)/% : $(BUILDDIR)/public/%
+       $(call inform,$(PRINTF) '%s\n' $(call quote,Installing </$*>…) >&2)

        $(silent)$(call ensuredirectory,$(dir $@))
        $(silent)$(call ensuredirectory,$(dir $@))

-       $(silent)$(CP) $(call quote,$<) $(call quote,$@)
+       $(silent)$(RM) -f -R $(call quote,$@)
+       $(silent)$(CP) -R $(call quote,$<) $(call quote,$@)
+
+# ━ § BEGIN ARCHIVE MAKE·FILE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+else ifeq ($(MODE),urn:fdc:ladys.computer:20231231:Shu1She4:mode:archive)
+
+# ─ ¶ Non‐Recipe Variable Definitions ─────────────────────────────────
+
+# Get the list of files in the archive.
+ifneq ($(wildcard $(BUILDDIR)/index),)
+override archivefiles := $(patsubst ./extracted/%,%,$(shell $(CAT) $(call quote,$(BUILDDIR)/index)))
+endif
+
+# ─ ¶ Recipe Variable Definitions ─────────────────────────────────────
+
+# ─ ¶ Phony Targets ───────────────────────────────────────────────────
+
+# ─ ¶ Special Targets ─────────────────────────────────────────────────
+
+# Reload this make·file if the archive components have changed.
+$(THISDIR)/GNUmakefile : $(BUILDDIR)/index
+       $(silent)$(TOUCH) $(THISDIR)/GNUmakefile
+       $(call inform,$(PRINTF) '%b\n' $(call quote,\0033[1mArchive components for </$(NAME)> updated. Restarting…\0033[22m) >&2)
+
+# ─ ¶ Build Targets ───────────────────────────────────────────────────
+
+# Build the extractor transform for extracting the contents of the archive source file.
+$(BUILDDIR)/extractor.xslt : $(SRC) $(THISDIR)/lib/archive2extractor.xslt
+       $(silent)$(call ensuredirectory,$(dir $@))
+       $(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) $(call quote,$(THISDIR)/lib/archive2extractor.xslt) $(call quote,$<)
+
+# Use the extractor transform to extract the archive source file out into its components.
+#
+# This target sleeps for 1 second to ensure the resulting index will always be newer than this make·file.
+$(BUILDDIR)/index : $(BUILDDIR)/extractor.xslt $(SRC)
+       $(call inform,$(PRINTF) '%s\n' $(call quote,Extracting components for </$(NAME)>…) >&2)
+       $(silent)$(SLEEP) 1
+       $(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) --writesubtree $(call quote,$(dir $@)) $(call quote,$<) $(call quote,$(SRC))
+
+# All archive components are extracted alongside the index.
+$(foreach file,$(archivefiles),$(BUILDDIR)/extracted/$(file)) : $(BUILDDIR)/index ;
+
+# Process each extractor component into its final form.
+$(foreach file,$(archivefiles),$(BUILDDIR)/files/$(file)) : $(BUILDDIR)/files/% : $(BUILDDIR)/extracted/%
+       $(call inform,$(PRINTF) '%s\n' $(call quote,Building </$(NAME)/$*>…) >&2)
+       $(silent)$(call ensuredirectory,$(dir $@))
+       $(silent)$(RM) -f -R $(call quote,$@)
+       $(silent)$(call processresultto,$<,$@,$*)
+
+# Archive all components in the file to the destination.
+#
+# This is a match‐anything target, with the assumption that this make·file is being called recursively from the default mode.
+$(DESTDIR)/% : $(SRC) $(foreach file,$(archivefiles),$(BUILDDIR)/files/$(file))
+       $(call inform,$(PRINTF) '%s\n' $(call quote,Archiving </$(NAME)>…) >&2)
+       $(silent)$(call ensuredirectory,$(dir $@))
+       $(silent)$(RM) -f -R $(call quote,$@)
+       $(silent)$(CD) $(call quote,$(BUILDDIR)/files); if $(call xpath,/*/@*[local-name()="expanded" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$(abspath $<)); then $(MKDIR) -p $(call quote,$(abspath $@)); $(PRINTF) '%s\n' $(foreach file,$(archivefiles),$(call quote,$(file))) | $(PAX) -r -w $(call quote,$(abspath $@)); else $(PRINTF) '%s\n' $(foreach file,$(archivefiles),$(call quote,$(file))) | $(PAX) -w -x ustar >|$(call quote,$(abspath $@)); fi
+
+# ━ § END DEFINED MAKE·FILE MODES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+else
+$(error Unrecognized MODE: $(MODE))
+endif