X-Git-Url: https://git.ladys.computer/Shushe/blobdiff_plain/59bb51a638838ad413a4c89fb773df233aedb3b6..b2cc96f23ec5a34e75775f0431236597d1db02b0:/GNUmakefile?ds=sidebyside

diff --git a/GNUmakefile b/GNUmakefile
index f59c4d5..c953ac7 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -3,7 +3,7 @@ SHELL = /bin/sh
 # ━ § BASIC INFORMATION ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 override define makefileinfo
  ╭────────────────────────────╮
-╔╡ ⁌ ⛩️📰 书社 ∷ GNUmakefile ╞════════════════════════════════╗
+╔╡ ⁌ ⛩️📰 书社 ∷ GNUmakefile ╞═════════════════════════════════╗
 ║╰────────────────────────────╯                                ║
 ╟┬ ¶ Prerequisites ───────────────────────────────────────────┬╢
 ║│                                                            │║
@@ -16,12 +16,14 @@ override define makefileinfo
 ║│                                                            │║
 ║│ • awk                                                      │║
 ║│ • cat                                                      │║
+║│ • cksum                                                    │║
 ║│ • cp                                                       │║
 ║│ • date                                                     │║
 ║│ • echo                                                     │║
 ║│ • file                                                     │║
 ║│ • find                                                     │║
 ║│ • git (optional)                                           │║
+║│ • ln                                                       │║
 ║│ • mkdir (requires support for `-p´)                        │║
 ║│ • mv                                                       │║
 ║│ • od (requires support for `-t x1´)                        │║
@@ -45,13 +47,14 @@ override define makefileinfo
 ║╰────────────────────────────────────────────────────────────╯║
 ╟┬ ¶ 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 installed files.                     │║
+║│ • `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´.                                               │║
@@ -59,6 +62,9 @@ override define makefileinfo
 ║│ • `make list´: List all recognized source files and their  │║
 ║│   classification (including media type and dependencies).  │║
 ║│                                                            │║
+║│ • `make uninstall´: Remove installed files, but not        │║
+║│   `BUILDDIR´.                                              │║
+║│                                                            │║
 ║│ Set `VERBOSE=1´ to see the text of commands as they are    │║
 ║│ executed.                                                  │║
 ║│                                                            │║
@@ -81,16 +87,17 @@ endef
 
 # Programs needed to run this make·file.
 #
-# If these are not installed on your computer, or you need to use a
-# different implementation, you can override the appropriate variable.
+# 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
+CKSUM := cksum
 CP := cp
 DATE := date
 ECHO := echo
 FILE := file
 FIND := find
 GIT := git
+LN := ln
 MKDIR := mkdir
 MV := mv
 OD := od
@@ -110,15 +117,13 @@ XSLTPROC := xsltproc
 
 # 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.
+# Multiple directories can be given so long as files with the same name do not exist in each.
 SRCDIR := sources
 
-# The directory which contains “includes”: Files which may be included
-# in other files but for which no final output will be generated.
+# The directory which contains “includes”:
+# Files which may be included in other files but for which no final output will be generated.
 #
-# Multiple directories can be given so long as files with the same name
-# do not exist in each.
+# 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
@@ -129,64 +134,66 @@ BUILDDIR := build
 # The directory into which to output files on `make install´.
 DESTDIR := public
 
-# The location of this Makefile (and related ⛩️📰 书社 files),
-# relative to the current working directory.
+# 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´.
 THISDIR := $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))
 
-# The location of the magic files to use when determining media types.
-#
-# One is provided as part of this repository, but you can override it
-# if you need different media type detection.
+# Configuration of `find´.
 #
-# Your computer probably has a more comprehensive one installed at
-# `/usr/share/file/magic´, but it is not recommended that you use this
-# directly. Instead, link or copy just the files you expect to need for
-# your project.
-MAGICDIR := $(patsubst ./%,%,$(THISDIR)/magic)
+# 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 '*[][*?:|$$%\#\\; ]*' -o -name '*[)]' ')' -a -prune ')'$(if $(EXTRAFINDRULES), -a $(EXTRAFINDRULES),)
+FINDINCLUDERULES := $(FINDRULES)$(if $(EXTRAFINDINCLUDERULES), -a $(EXTRAFINDINCLUDERULES),)
 
-# Configuration of `find´.
+# The list of magic files to use when determining media types.
 #
-# By default, `find´ will ignore hidden files, those which begin with a
-# period, and those which are likely to cause problems for `make´.
-FINDRULES := -flags -nohidden -and ! '(' '(' -name '[.-]*' -or -name '*[][*?:|$$%\#;]*' ')' -and -prune ')'
-FINDINCLUDERULES := $(FINDRULES)
+# Some are provided as part of this repository, but you can add more if you need different media type detection.
+#
+# Your computer probably has several already installed at `/usr/share/file/magic´.
+EXTRAMAGIC :=
+MAGIC := $(sort $(patsubst ./%,%,$(wildcard $(THISDIR)/magic/*)) $(EXTRAMAGIC))
 
 # The list of parsers for plaintext file types.
 #
-# Which parsers are provided will influence which kinds of files are
-# recognized as plaintext.
-#
-# Each parser ⁜must⁜ have a template which matches ⁜only⁜ X·H·T·M·L
-# `<script>´ elements that have a `@type´ of a plaintext type supported
-# by the parser. They may have multiple.
-PARSERS := $(patsubst ./%,%,$(wildcard $(THISDIR)/parsers/*.xslt))
+# Which parsers are provided will influence which kinds of files are recognized as plaintext.
+EXTRAPARSERS :=
+PARSERS := $(sort $(patsubst ./%,%,$(wildcard $(THISDIR)/parsers/*.xslt)) $(EXTRAPARSERS))
 
 # The list of transforms.
-TRANSFORMS := $(patsubst ./%,%,$(wildcard $(THISDIR)/transforms/*.xslt))
+EXTRATRANSFORMS :=
+TRANSFORMS := $(sort $(patsubst ./%,%,$(wildcard $(THISDIR)/transforms/*.xslt)) $(EXTRATRANSFORMS))
 
 # List of types which should be treated as X·M·L.
 XMLTYPES := application/xml text/xml
 
+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 || $(GIT) rev-parse HEAD 2> /dev/null || true)
+endif
+
+ifneq ($(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 || true)
+endif
+endif
+
 # Set to a non·empty value to print all commands as they run.
 VERBOSE :=
 
 # The default target for this makefile.
-#
-# Print help and exit.
-.DEFAULT_GOAL := help
+.DEFAULT_GOAL := all
 
 # ━ § BEGIN MAKE·FILE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
 # ─ ¶ Non‐Recipe Variable Definitions ─────────────────────────────────
 
-# A variable with no value, usable when assigning values which contain
-# whitespace.
+# A variable with no value, usable when assigning values which contain whitespace.
 override empty :=
 
-# A variable which contains a newline, to allow the generation of
-# multiline strings in function calls.
+# A variable which contains a newline, to allow the generation of multiline strings in function calls.
 override define newline
 
 
@@ -204,48 +211,46 @@ override quote = '$(subst ','"'"',$1)'
 # Outputs an `@´ to silence rules, unless `VERBOSE´ is nonempty.
 override silent := $(if $(VERBOSE),,@)
 
-# (callable) Escape special characters for use in sed regular
-# expressions.
+# (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 || true),,$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)))))))
 
+# The command to use for percent‐decoding.
+override perdeccmd := $(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",$$0}/%/{d="0123456789ABCDEF";v=substr(toupper($$0),2,2);printf "\\%04o",(index(d,substr(v,1,1))-1)*16+index(d,substr(v,2,1))-1}' | $(XARGS) -0 $(PRINTF) '%b'
+
 # (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´).
-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')))
+# 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´).
+#
+# 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/^[0-9]*//;s/0[Aa]/%&/g;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' | $(perdeccmd))
 
 # (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)))))
-
-# (overridable) Collect all of the applicable includes from the
-# includes directory.
-sourceincludes := $(shell $(FIND) $(foreach dir,$(INCLUDEDIR),$(call quote,$(dir))) -type f '(' $(FINDRULES) ')')
+# ☡ This variable creates a subshell every time it is computed.
+override pathenc = $(subst %2F,/,$(call perenc,$1))
 
-# (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))) -type f '(' $(FINDRULES) ')'))
+# (overridable) Collect all of the applicable includes from the includes directory.
+sourceincludes := $(shell $(FIND) $(foreach dir,$(INCLUDEDIR),$(call quote,$(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
+# (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))
 
 # Figure out the file type of each source file and source include.
 ifneq ($(wildcard $(BUILDDIR)/magic.mgc),)
@@ -257,8 +262,7 @@ ifneq ($(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)))
 endif
 
-# (callable) Get all of the files (source and includes) which have the
-# given types.
+# (callable) Get all of the files (source and includes) which have the given types.
 override filesoftype = $(foreach type,$1,$(patsubst %|$(type),%,$(filter %|$(type),$(types))))
 
 # Build up collections of various file types.
@@ -269,8 +273,14 @@ override assetfiles := $(filter-out $(xmlfiles) $(plaintextfiles),$(sourcefiles)
 # (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))))
+# Pair each source magic file with its location in the build directory.
+override magicpair := $(foreach magicfile,$(MAGIC),$(magicfile)|$(BUILDDIR)/magic/$(notdir $(magicfile)))
+
+# (callable) Get the source file for the given magic files.
+override magicsource = $(foreach magicpath,$1,$(patsubst %|$(magicpath),%,$(firstword $(filter %|$(magicpath),$(magicpair)))))
+
+# (callable) Get the build file for the given magic files.
+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),)))
@@ -279,6 +289,8 @@ override sourcepath = $(firstword $(foreach directory,$(SRCDIR),$(if $(filter $(
 override includepath = $(firstword $(foreach directory,$(INCLUDEDIR),$(if $(filter $(directory)/%,$1),$(patsubst $(directory)/%,%,$1),)))
 
 # (callable) Get base64 data u·r·i’s for the given files.
+#
+# ☡ This variable creates a subshell every time it is computed.
 override datauri = $(foreach file,$1,data:$(call typeoffile,$(file));base64,$(shell $(UUENCODE) -m -r $(call quote,$(file)) _ | tr -d ' \n'))
 
 # Pair each source file and include with its local u·r·i.
@@ -290,40 +302,40 @@ 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))))
 
-# Adds a requirement on `$(BUILDDIR)/.update-types´ if the file is
-# present.
+# Adds a requirement on `$(BUILDDIR)/.update-types´ if the file 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.
+# 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)
 
 # 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))))
 
-# (callable) Get the location of the transformed X·M·L files for the
-# given source files.
+# (callable) Get the location of the transformed X·M·L files for the given source files.
 override parsed = $(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,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,$(fileuripairs))))
+
 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)))$$/$(comma)/^[^	]/!d;/^	/!d;s/^	//))))
+override dependenciesforfile := $(foreach file,$(filter-out $(assetfiles),$(sourcefiles) $(sourceincludes)),$(file)|$(subst $(space),|,$(shell $(CAT) $(call quote,$(BUILDDIR)/dependencies) | $(SED) $(call quote,/^$(call sedesc,$(call localuri,$(file)))$$/$(comma)/^[^	]/!d;/^	/!d;s/^	//))))
 
-# (callable) Get the list of dependency leiris for the given source
-# files.
+# (callable) Get the list of dependency leiris for the given source files.
 #
 # Recursive dependencies are marked with a leading `-´.
 override dependencyuris = $(foreach file,$1,$(subst |, ,$(patsubst $(file)|%,%,$(filter $(file)|%,$(dependenciesforfile)))))
 
-# (callable) Get the list of recursive dependencies for the given
-# source files.
+# (callable) Get the list of recursive 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.
+# (callable) Get the list of (nonrecursive) dependencies for the given source files.
 override dependencies = $(foreach uri,$(filter-out -%,$(call dependencyuris,$1)),$(call sourcefile,$(uri)))
 endif
 
@@ -335,6 +347,11 @@ override recursivefiles := $(foreach file,$(filter-out $(assetfiles),$(sourcefil
 # This is all of the non·asset, nonrecursive files.
 override compilablefiles := $(filter-out $(assetfiles) $(recursivefiles),$(sourcefiles))
 
+# Collect all files which can be installed.
+#
+# This is all of the comilable files and all asset sources.
+override installablefiles := $(compilablefiles) $(filter $(assetfiles),$(sourcefiles))
+
 ifneq ($(wildcard $(BUILDDIR)/destinations),)
 # Get the output of the destination transform.
 override destinations := $(shell $(CAT) $(BUILDDIR)/destinations)
@@ -348,8 +365,7 @@ override destination = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)
 # Pair each source file with its compiled location.
 override sourcecompiledpair := $(foreach file,$(sourcefiles),$(file)|$(BUILDDIR)/public/$(call destination,$(file)))
 
-# (callable) Get the location of the transformed X·M·L files for the
-# given source files.
+# (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.
@@ -361,82 +377,94 @@ endif
 
 # ─ ¶ Recipe Variable Definitions ─────────────────────────────────────
 
-# (callable) Check to see if the given directory exists and
-# create it if not.
+# (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) Sanitize and wrap the provided plaintext file in
-#  X·M·L, printing to `stdout´.
+# (callable) Get the identifier for the given parser or transform.
+override id = $(XMLLINT) --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´.
 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>')"
 
-# ─ ¶ 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*[1-8BCEFbcef];/\0302\0221/g\n s/&\0043x0*1[0-9A-Fa-f];/\0302\0221/g\n s/&\00430*[1-8];/\0302\0221/g\n s/&\00430*1[124-9];/\0302\0221/g\n s/&\00430*2[0-9];/\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.
-all: $(call compiled,$(recursivefiles) $(compilablefiles) $(filter $(sourcefiles),$(assetfiles)));
+all : $(call compiled,$(recursivefiles) $(compilablefiles)) ;
 
 # Destroy buildfiles.
-clean:
-	$(silent)$(RM) -rf $(BUILDDIR)/
+clean :
+	$(if $(BUILDDIR),$(silent)$(RM) -rf $(call quote,$(BUILDDIR)/),)
+
+# Destroy build directory and installed files.
+gone : clean uninstall ;
 
-# Destroy buildfiles and the install directory.
-gone:
-	$(silent)$(RM) -rf $(BUILDDIR)/ $(call compiled,$(recursivefiles) $(compilablefiles))
+# Provide help.
+help :
+	@$(PRINTF) '%b' '$(subst $(newline),\n,$(makefileinfo))'
 
-# Install the compiled files into `DESTDIR´.
-install: $(call installed,$(recursivefiles) $(compilablefiles) $(filter $(sourcefiles),$(assetfiles)));
+# Install the compiled files into `DESTDIR´, or error if any are recursive.
+install : $(call installed,$(recursivefiles) $(installablefiles)) ;
 
 # List all source files and includes and their computed types.
-list:
+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 '
 
-# Raise an error when attempting to build any files with recursive
-# dependencies.
-$(call compiled,$(recursivefiles)):
+# 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.
+$(call compiled,$(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
 
+# 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.
-.SECONDEXPANSION: ;
+# Perform secondary expansion; this enables pattern rules to determine their prerequisites based on the matched pattern.
+.SECONDEXPANSION : ;
 
 # Don’t use any implicit rules.
-.SUFFIXES: ;
+.SUFFIXES : ;
 
-# Phony rules; always consider these out‐of‐date.
-.PHONY: all default clean gone info install list $(call compiled,$(recursivefiles));
+# Phony rules; always consider these out·of·date.
+.PHONY : FORCE all default clean gone info install list uninstall $(call compiled,$(recursivefiles)) ;
 
-ifneq ($(wildcard $(BUILDDIR)/.update-types)$(wildcard $(BUILDDIR)/dependencies),)
-# Reload this make·file if the dependency graph has changed.
+ifneq ($(typeupdates)$(wildcard $(BUILDDIR)/dependencies)$(wildcard $(BUILDDIR)/destinations),)
+# Reload this make·file if the dependency graph or output destinations have changed.
+#
+# The dependency graph and output destinations are used to set the values of variables in this make·file, so it’s important to ensure that they are actually up·to·date prior to executing any later rules.
 #
-# This graph is a dependency for some of the variables that this
-# make·file uses, so it’s important to ensure that they are actually
-# up‐to‐date prior to executing any later rules.
+# This recipe only exists after types have been updated or when the dependency graph or destinations file already exists.
 #
-# This recipe only exists after types have been updated or when the
-# dependency graph already exists.
-$(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
-	$(silent)$(RM) -f $(BUILDDIR)/.update-types
+ifeq ($(typeupdates),)
+	@if $(TEST) ! -f $(call quote,$(BUILDDIR)/.update-types); then $(PRINTF) '%b\n' '\0033[1mDependency graph and output destinations updated. Restarting…\0033[22m'; fi
+else
+	$(silent)$(RM) $(BUILDDIR)/.update-types
 	@$(PRINTF) '%b\n' '\0033[1mDependency graph and output destinations updated. Restarting…\0033[22m'
 endif
+endif
 
-ifeq ($(wildcard $(BUILDDIR)/.update-types),)
-# Reload this make·file if any of the magic files or parsers have
-# changed.
+ifeq ($(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.
+# 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 $(BUILDDIR)/parser.xslt
+# This recipe sleeps for one second to ensure that files built after the restart have a more current time·stamp.
+$(THISDIR)/GNUmakefile :: $(BUILDDIR)/magic.mgc $(BUILDDIR)/parser.xslt
 	$(silent)$(TOUCH) $(THISDIR)/GNUmakefile
-	$(silent)$(RM) -f $(call quote,$(BUILDDIR)/dependencies)
+	$(silent)$(RM) -f $(call quote,$(BUILDDIR)/dependencies) $(call quote,$(BUILDDIR)/destinations)
 	@$(PRINTF) '%b\n' '\0033[1mMagic file or parsers have updated. Restarting…\0033[22m'
 	$(silent)$(SLEEP) 1
 	$(silent)$(TOUCH) $(call quote,$(BUILDDIR)/.update-types)
@@ -444,75 +472,82 @@ endif
 
 # ─ ¶ Build Targets ───────────────────────────────────────────────────
 
+# Create symbolic links from the build directory’s store of magic files to their corresponding sources.
+$(call magicfile,$(MAGIC)) : $(BUILDDIR)/magic/% : $$(call magicsource,$$@)
+	$(silent)$(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: $(wildcard $(MAGICDIR)/*)
+$(BUILDDIR)/magic.mgc : $(call diffprereqs,magic,$(sort $(call magicfile,$(MAGIC))))
+	$(foreach outdated,$(filter-out $^,$(wildcard $(BUILDDIR)/magic/*)),$(silent)$(RM) $(call quote,$(outdated))$(newline))
 	@$(ECHO) "Compiling new magic…"
 	$(silent)$(call ensuredirectory,$(dir $@))
-	$(silent)cd $(call quote,$(BUILDDIR)) && $(FILE) -C -m $(call quote,$(realpath $(MAGICDIR)))
+	$(silent)cd $(call quote,$(BUILDDIR)) && $(FILE) -C -m $(call quote,$(realpath $(BUILDDIR)/magic))
+	$(silent)$(TOUCH) $(call quote,$(BUILDDIR)/.update-types)
 
 # Generate the main parser.
-$(BUILDDIR)/parser.catalog: $(PARSERS)
+$(BUILDDIR)/parser.catalog : $(call diffprereqs,parsers,$(sort $(PARSERS)))
 	@$(ECHO) "Generating catalog of parsers…"
 	$(silent)$(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
+	$(foreach parser,$(PARSERS),$(silent)( $(call id,$(parser)) ) | $(XARGS) -I %% $(XMLCATALOG) --add uri %% $(call quote,$(call fileuri,$(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) $(call quote,$<)
+	$(silent)$(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.
-$(call parsed,$(sourcefiles) $(sourceincludes)): %: $$(call unparsed,$$@) $(typeupdates)
+# Even plain X·M·L files are parsed, because they may contain X·H·T·M·L `<script>´ elements which contain other kinds of data.
+# Asset files are turned into H·T·M·L embeds pointing to `data:´ U·R·I’s.
+$(call parsed,$(sourcefiles) $(sourceincludes)) : % : $$(call unparsed,$$@) $(BUILDDIR)/parser.xslt $(typeupdates)
 	@$(PRINTF) '%s\n' $(call quote,Processing `$<´…)
 	$(silent)$(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' $(call quote,<object xmlns="http://www.w3.org/1999/xhtml" type="$(call typeoffile,$<)" data="$(call datauri,$<)"/>) > $(call quote,$@),$(if $(filter $<,$(plaintextfiles)),$(call wrapplaintext,$<),$(call serializexml,$<)) | $(XSLTPROC) -o $(call quote,$@) --stringparam BUILDTIME $$(TZ= $(DATE) '+%Y-%m-%dT%H:%M:%SZ') --stringparam IDENTIFIER $(call quote,$(call localuri,$<)) --stringparam SRCTIME $$(TZ= $(STAT) -f '%Sm' -t '%Y-%m-%dT%H:%M:%SZ' $(call quote,$<)) --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.
-$(BUILDDIR)/catalog: $(sourcefiles) $(sourceincludes) $(typeupdates)
+# Generate a catalog of all parsed files, for use when processing includes.
+#
+# This does not depend on actually transforming the files.
+$(BUILDDIR)/catalog : $(call diffprereqs,sources,$(sort $(sourcefiles) $(sourceincludes))) $(typeupdates)
 	@$(ECHO) "Generating catalog of parsed files…"
 	$(silent)$(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.
-$(BUILDDIR)/dependencies: $(BUILDDIR)/catalog $(call parsed,$(plaintextfiles) $(xmlfiles)) $(THISDIR)/lib/catalog2dependencies.xslt
+$(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) $(call quote,$<)
 
-# 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))) $(THISDIR)/lib/catalog2destinations.xslt
+# Generate a catalog of destinations for files.
+#
+# This depends on parsing non·asset source files, but not assets or includes.
+# It does not require knowing the dependencies.
+$(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) $(call quote,$<)
 
 # Generate the main transform.
-$(BUILDDIR)/transform.catalog: $(TRANSFORMS)
+$(BUILDDIR)/transform.catalog : $(call diffprereqs,transforms,$(sort $(TRANSFORMS)))
 	@$(ECHO) "Generating catalog of transforms…"
 	$(silent)$(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
+	$(foreach transform,$(TRANSFORMS),$(silent)( $(call id,$(transform)) ) | $(XARGS) -I %% $(XMLCATALOG) --add uri %% $(call quote,$(call fileuri,$(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) $(call quote,$<)
 
 # 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,$$@)))
+$(call compiled,$(compilablefiles)) : $(BUILDDIR)/public/% : $$(call parsed,$$(call uncompiled,$$@)) $(BUILDDIR)/transform.xslt $$(call parsed,$$(call dependencies,$$(call uncompiled,$$@)))
 	$(silent)$(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/%: $$(call uncompiled,$$@)
+	$(silent)$(XSLTPROC) -o $(call quote,$@) --stringparam CATALOG 'catalog' --stringparam BUILDTIME $$(TZ= $(DATE) '+%Y-%m-%dT%H:%M:%SZ') --stringparam SRCTIME $$(TZ= $(STAT) -f '%Sm' -t '%Y-%m-%dT%H:%M:%SZ' $(call quote,$(call uncompiled,$@))) --stringparam IDENTIFIER $(call quote,$(call localuri,$(call uncompiled,$@))) --stringparam PATH $(call quote,/$*) --stringparam CKSUM $$($(CKSUM) $(call quote,$(call uncompiled,$@)) | $(SED) 's/[ ].*//')$(if $(THISREV), --stringparam THISREV $(call quote,$(THISREV)),)$(if $(SRCREV), --stringparam SRCREV $(call quote,$(SRCREV)),) $(call quote,$(BUILDDIR)/transform.xslt) $(call quote,$<)
+$(call compiled,$(filter $(assetfiles),$(sourcefiles))) : $(BUILDDIR)/public/% : $$(call uncompiled,$$@)
 	@$(PRINTF) '%s\n' $(call quote,Compiling </$*>…)
 	$(silent)$(call ensuredirectory,$(dir $@))
 	$(silent)$(CP) $(call quote,$<) $(call quote,$@)
 
 # Install compiled files (or error in the case of recursive ones).
-$(call installed,$(filter $(assetfiles),$(sourcefiles)) $(recursivefiles) $(compilablefiles)): $(DESTDIR)/%: $(BUILDDIR)/public/%
+$(call installed,$(filter $(assetfiles),$(sourcefiles)) $(recursivefiles) $(compilablefiles)) : $(DESTDIR)/% : $(BUILDDIR)/public/%
 	@$(PRINTF) '%s\n' $(call quote,Installing </$*>…)
 	$(silent)$(call ensuredirectory,$(dir $@))
 	$(silent)$(CP) $(call quote,$<) $(call quote,$@)