X-Git-Url: https://git.ladys.computer/Shushe/blobdiff_plain/6773582e45aab385c96638fe9e90d811132a1005..18844b7cd24e28f9aa38461c760a09fd8480c8ee:/GNUmakefile?ds=inline

diff --git a/GNUmakefile b/GNUmakefile
index 2cb311f..8115200 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -6,7 +6,7 @@ SHELL = /bin/sh
 # ━ § BASIC INFORMATION ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 override define makefileinfo
  ╭────────────────────────────╮
-╔╡ ⁌ ⛩️📰 书社 ∷ GNUmakefile ╞═════════════════════════════════╗
+╔╡ ⁌ ⛩📰 书社 ∷ GNUmakefile ╞═════════════════════════════════╗
 ║╰────────────────────────────╯                                ║
 ╟┬ ¶ Prerequisites ───────────────────────────────────────────┬╢
 ║│                                                            │║
@@ -19,31 +19,30 @@ override define makefileinfo
 ║│                                                            │║
 ║│ • awk                                                      │║
 ║│ • cat                                                      │║
+║│ • cd                                                       │║
 ║│ • cksum                                                    │║
 ║│ • cp                                                       │║
 ║│ • date                                                     │║
-║│ • echo                                                     │║
+║│ • diff                                                     │║
 ║│ • file                                                     │║
 ║│ • find                                                     │║
 ║│ • grep                                                     │║
 ║│ • git (optional)                                           │║
 ║│ • ln                                                       │║
-║│ • ls                                                       │║
-║│ • mkdir (requires support for `-p´)                        │║
+║│ • mkdir                                                    │║
 ║│ • mv                                                       │║
-║│ • od (requires support for `-t x1´)                        │║
+║│ • od                                                       │║
 ║│ • pax (only when generating archives)                      │║
 ║│ • printf                                                   │║
 ║│ • rm                                                       │║
 ║│ • sed                                                      │║
 ║│ • sleep                                                    │║
-║│ • stat                                                     │║
 ║│ • test                                                     │║
 ║│ • touch                                                    │║
-║│ • tr (requires support for `-d´)                           │║
-║│ • uuencode (requires support for `-m´ and `-r´)            │║
-║│ • uudecode (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)                           │║
@@ -84,7 +83,7 @@ override define makefileinfo
 ║╰────────────────────────────────────────────────────────────╯║
 ╟┬ ¶ Copyright & License ─────────────────────────────────────┬╢
 ║│                                                            │║
-║│ Copyright © 2023–2024 Lady [@ Lady’s Computer].            │║
+║│ Copyright © 2023–2024 Lady [@ Ladys Computer].            │║
 ║│                                                            │║
 ║│ This Source Code Form is subject to the terms of the       │║
 ║│ Mozilla Public License, v 2.0. If a copy of the M·P·L was  │║
@@ -101,16 +100,16 @@ 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
+CD := cd
 CKSUM := cksum
 CP := cp
 DATE := date
-ECHO := echo
+DIFF := diff
 FILE := file
 FIND := find
 GIT := git
 GREP := grep
 LN := ln
-LS := ls
 MKDIR := mkdir
 MV := mv
 OD := od
@@ -119,7 +118,6 @@ PRINTF := printf
 RM := rm
 SED := sed
 SLEEP := sleep
-STAT := stat
 TEST := test
 TOUCH := touch
 TR := tr
@@ -151,7 +149,7 @@ 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.
-INCLUDEDIR := sources/includes
+INCLUDEDIR := $(foreach dir,$(SRCDIR),$(dir)/includes)
 
 # The directory in which to generate temporary buildfiles.
 #
@@ -163,7 +161,7 @@ BUILDDIR := build
 # 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.
+# 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´.
 #
@@ -175,8 +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 :=
-FINDRULES := ! '(' '(' -name '[.-]*' -o -name '*[][*?:|$$%\#\\; ]*' -o -name '*"{*' -o -name '*}"*' -o -name '*[)]' ')' -a -prune ')'$(if $(EXTRAFINDRULES), -a $(EXTRAFINDRULES),)
-FINDINCLUDERULES := $(FINDRULES)$(if $(EXTRAFINDINCLUDERULES), -a $(EXTRAFINDINCLUDERULES),)
+FINDRULES := ! '(' '(' -name '[.-]*' -a ! -name '.' -o -name '*[][*?:|$$%\#\\; ]*' -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.
 #
@@ -197,17 +195,23 @@ 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
+#
+# 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 || true)
+# 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 || true)
+SRCREV := $(shell $(GIT) describe 2>>/dev/null || $(GIT) rev-parse HEAD 2>>/dev/null || :)
 endif
 endif
 
@@ -221,17 +225,31 @@ endif
 #
 # • ‹ urn:fdc:ladys.computer:20231231:Shu1She4:mode:archive ›:
 #   Generates archive files from parse results.
-#
-# • ‹ urn:fdc:ladys.computer:20231231:Shu1She4:mode:paged ›:
-#   Generates paginated 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 :=
 
+# Posix locale information.
+LC_ALL := C
+export LC_ALL
+
+# Posix timezone information.
+TZ := UTC0
+export UTC0
+
 # The default target for this makefile.
 .DEFAULT_GOAL := all
 
+# Flags for use when calling the shell.
+#
+# `-e` enables early exit from invocations of multiple commands after
+# the first failure.
+.SHELLFLAGS := -c -e
+
 # ━ § BEGIN SHARED MAKE·FILE CONSTRUCTS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
 # ─ ¶ Non‐Recipe Variable Definitions ─────────────────────────────────
@@ -251,38 +269,39 @@ override space := $(empty) $(empty)
 # A variable which contains a single comma.
 override comma := ,
 
+# (callable) Make empty strings non·empty, and non·empty strings empty.
+override not = $(if $1,,1)
+
 # (callable) Quote the given string for use within shell calls.
 override quote = '$(subst ','"'"',$1)'
 
-# Outputs an `@´ to silence rules, unless `VERBOSE´ is nonempty.
-override silent := $(if $(VERBOSE),,@)
+# ─ ¶ Recipe Variable Definitions ─────────────────────────────────────
 
-# (callable) Get the modified time of the provided file.
-#
-# This is messy; there is no portable way of using `stat´.
-#
-# ☡ This variable creates a subshell every time it is computed.
-override modtime = $(shell if $(STAT) --version 2> /dev/null | $(GREP) -q GNU; then $(DATE) -d "@$$(TZ= $(STAT) -c '%Y' $(call quote,$1))" '+%Y-%m-%dT%H:%M:%SZ'; else TZ= $(STAT) -f '%Sm' -t '%Y-%m-%dT%H:%M:%SZ' $(call quote,$1); fi)
+# Outputs an `@´ to silence rules, unless `VERBOSE´ is non·empty.
+override silent := $(if $(VERBOSE),,@)
 
-# ─ ¶ Recipe Variable Definitions ─────────────────────────────────────
+# (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
 
-# (callable) Test if the provided xpath expression matches the provided document.
-override xpath = $(XMLLINT) --xpath $(call quote,$1) $(call quote,$2) > /dev/null 2> /dev/null
+# 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/$$/\\/)
 
-# (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)
+# 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) List the files in the provided directory which are associated with the provided filename, one per line.
-override associatedfiles = $(LS) -1 $(call quote,$1) | $(SED) '/.*"{.*}".*/!d;s/^\(.*\)"{.*}"\(.*\)$$/\1\2|&/' | $(GREP) -F -e $(call quote,$2|) | $(SED) '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) Remove files associated with the provided file.
-override removeassociatedfiles = ASSOCIATED="$$($(call associatedfiles,$(dir $1),$(notdir $1)) | $(TR) '\n' ' ')"; if $(TEST) -n "$$ASSOCIATED"; then cd $(call quote,$(dir $1)) && $(PRINTF) '%s\n' "$$ASSOCIATED" | $(TR) ' ' '\n' | $(SED) $(call quote,/^$$/d;s/'/'"'"'/g;s/^/'/;s/$$/'/) | $(TR) '\n' ' ' | $(XARGS) $(RM); fi
+# (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 --nomkdir --nowrite - $(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); $(call removeassociatedfiles,$2); elif $(call xpath,/*[local-name()="base64-binary" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$1); then $(call extracttext,$1) | $(TR) -d '\t\n\f\r ' | $(XARGS) -0 $(PRINTF) 'begin-base64 644 -\n%s\n====\n' | $(UUDECODE) -o /dev/stdout > $(call quote,$2); $(call removeassociatedfiles,$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)) $(call quote,$2) NAME=$(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 removeassociatedfiles,$2); elif $(call xpath,//*[local-name()="page" and namespace-uri()="urn:fdc:ladys.computer:20231231:Shu1She4"],$1); then $(MAKE) -f $(call quote,$(abspath $(THISDIR)/GNUmakefile)) $(call quote,$2) NAME=$(call quote,$3) SRC=$(call quote,$1) BUILDDIR=$(call quote,$(BUILDDIR)/paged/$3) DESTDIR=$(call quote,$(patsubst %/,%,$(dir $2))) MODE='urn:fdc:ladys.computer:20231231:Shu1She4:mode:paged'; else $(XMLLINT) --nsclean $(call quote,$1) > $(call quote,$2); $(call removeassociatedfiles,$2);  fi
+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 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
@@ -290,20 +309,31 @@ ifeq ($(MODE),urn:fdc:ladys.computer:20231231:Shu1She4:mode:default)
 
 # ─ ¶ Non‐Recipe Variable Definitions ─────────────────────────────────
 
+# Non·empty if `help´ or `clean´, and no targets other than `help´ or `clean´, were specified as goals on the commandline.
+override notbuilding := $(and $(filter help clean,$(MAKECMDGOALS)),$(call not,$(filter-out help clean,$(MAKECMDGOALS))))
+
 # (callable) Test to see if the prerequisites provided by the second argument matches the value in the file corresponding to the first argument in `$(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.
 #
+# If `$(notbuilding)´ is non·empty, this variable produces no result to avoid unnecessary work.
+#
 # ☡ 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)
+override diffprereqs = $(if $(notbuilding),,$(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 X·M·L.
+override xmlesc = $(subst >,&gt;,$(subst <,&lt;,$(subst &,&amp;,$1)))
+
+# (callable) Escape special characters for use in X·M·L attributes.
+override attresc = $(subst ",&quot;,$(call xmlesc,$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/%[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'
+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.
 #
@@ -318,18 +348,23 @@ override perdec = $(shell $(PRINTF) '%s\0450A' $(foreach encoded,$1,$(call quote
 # 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))
+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.
 #
 # ☡ This variable creates a subshell every time it is computed.
 override pathenc = $(subst %2F,/,$(call perenc,$1))
 
+# (callable) Create a unique name for the given file, based on its absolute path.
+#
+# ☡ This variable creates a subshell every time it is computed.
+namehash = $(shell $(PRINTF) '%s' $(call quote,$(abspath $1)) | $(CKSUM) | $(SED) 's/ .*//' | $(XARGS) -E '' $(PRINTF) '%X')-$(notdir $1)
+
 # (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.
-sourcefiles := $(filter-out $(sourceincludes),$(shell $(FIND) $(foreach dir,$(SRCDIR),$(call quote,$(dir))) '(' $(FINDRULES) ')' -a -type f))
+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),)
@@ -338,11 +373,13 @@ 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
 
-# (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))
@@ -350,10 +387,10 @@ 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 typeoffile = $(patsubst $(foreach file,$1,$(file)|%),%,$(filter $(foreach file,$1,$(file)|%),$(types)))
+override typeoffile = $(foreach file,$1,$(or $(patsubst $(file)|%,%,$(filter $(file)|%,$(types))),application/octet-stream))
 
 # Pair each source magic file with its location in the build directory.
-override magicpair := $(foreach magicfile,$(MAGIC),$(magicfile)|$(BUILDDIR)/magic/$(notdir $(magicfile)))
+override magicpair := $(foreach magicfile,$(MAGIC),$(magicfile)|$(BUILDDIR)/magic/$(call namehash,$(magicfile)))
 
 # (callable) Get the source file for the given magic files.
 override magicsource = $(foreach magicpath,$1,$(patsubst %|$(magicpath),%,$(firstword $(filter %|$(magicpath),$(magicpair)))))
@@ -362,15 +399,15 @@ 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 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.
-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.
 #
 # ☡ 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,$$!d;$d' | $(TR) -d ' \n'))
+override datauri = $(foreach file,$1,data:$(call typeoffile,$(file));base64,$(shell $(UUENCODE) -m $(call quote,$(file)) _ | $(SED) '2,$$!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)))))
@@ -381,11 +418,20 @@ 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 `$(BUILDDIR)/.update-types´ if the file is present.
+# Resolves to the `FORCE´ target if `$(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 := $(and $(wildcard $(BUILDDIR)/.update-types),FORCE)
+
+# Pair each source file and include with its metadata location.
+override sourcemetadatapair := $(foreach file,$(sourcefiles) $(sourceincludes),$(file)|$(BUILDDIR)/$(if $(filter $(file),$(sourceincludes)),includes.metadata/$(call includepath,$(file)),sources.metadata/$(call sourcepath,$(file))))
+
+# (callable) Get the location of the transformed X·M·L files for the given source files.
+override metadata = $(foreach file,$1,$(patsubst $(file)|%,%,$(filter $(file)|%,$(sourcemetadatapair))))
+
+# (callable) Get the source files for the given parsed file.
+override datadata = $(foreach file,$1,$(patsubst %|$(file),%,$(filter %|$(file),$(sourcemetadatapair))))
 
 # 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))))
@@ -396,15 +442,15 @@ 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))))
 
-# 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)))))
+# Pair each build directory, parser, transform, or parsed file with its file u·r·i.
+override fileuripairs := $(join $(patsubst %,%|,$(BUILDDIR) $(PARSERS) $(TRANSFORMS) $(call parsed,$(sourcefiles) $(sourceincludes))),$(call pathenc,$(foreach uriable,$(BUILDDIR) $(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))))
+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.
-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)))$$/$(comma)/^[^	]/!d;/^	/!d;s/^	//))))
+override dependenciesforfile := $(foreach file,$(filter-out $(assetfiles),$(sourcefiles) $(sourceincludes)),$(file)|$(subst $(space),|,$(shell $(SED) $(call quote,/^$(call sedesc,$(call localuri,$(file)))$$/$(comma)/^[^	]/!d;/^	/!d;s/^	//) <$(call quote,$(BUILDDIR)/dependencies))))
 
 # (callable) Get the list of dependency leiris for the given source files.
 #
@@ -412,9 +458,13 @@ override dependenciesforfile := $(foreach file,$(filter-out $(assetfiles),$(sour
 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.
+#
+# 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
 
@@ -436,10 +486,13 @@ ifneq ($(wildcard $(BUILDDIR)/destinations),)
 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))))))
+override sourcedestinationpair := $(foreach destination,$(destinations),$(call sourcefile,$(firstword $(subst |, ,$(destination))))|$(subst $(space),|,$(wordlist 2,$(words $(subst |, ,$(destination))),$(subst |, ,$(destination)))))
+endif
 
-# (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/$1´.
+#
+# The fallback here is because destinations are used to generate targets and thus must always be non·empty and should be unique, even when they haven’t been generated yet.
+override destination = $(foreach file,$1,$(or $(patsubst $(file)|%,%,$(filter $(file)|%,$(sourcedestinationpair))),.NOTDEF/$1))
 
 # Pair each source file with its compiled location.
 override sourcecompiledpair := $(foreach file,$(sourcefiles),$(file)|$(BUILDDIR)/results/$(call destination,$(file)))
@@ -458,22 +511,24 @@ override unbuilt = $(foreach file,$1,$(call uncompiled,$(patsubst $(BUILDDIR)/pu
 
 # (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 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))))
+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´.
-override wrapplaintext = $(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$$//g\ns/\0302\0205/\\n/g;s/\0342\0200\0250/\\n/g;s/[\0001-\0010]/�/g;s/[\0016-\0037]/�/g')" | $(XARGS) -0 $(PRINTF) '%b%s]]></script>\n' '<?xml version=\042\061.0\042?>\n<script xmlns=\042http://www.w3.org/1999/xhtml\042 type=\042$(call typeoffile,$1)\042><![CDATA['
+override wrapplaintext = { $(PRINTF) '%s\n%s' '<?xml version="1.0"?>' '<script xmlns="http://www.w3.org/1999/xhtml" type="$(call typeoffile,$1)"><![CDATA['; $(TR) '\000\013\014' '\032\011\012' <$(call quote,$1) | $(SED) "$$($(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>'; }
 
 # (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) "$$($(PRINTF) '%b' ':a\n/^\\n*$$/{ $$d\n N\n ba\n}')"
+override serializexml = $(SED) "$$($(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}')"
+
+# (callable) Wraps the provided shell script in a conditional which checks whether a make restart caused by `$(BUILDDIR)/.update-types´ is imminent (i·e, it was created during the course of this run) and only executes the script if it is not.
+override unlesstypeswillupdate = $(if $(call not,$(typeupdates)),if $(TEST) ! -e $(call quote,$(BUILDDIR)/.update-types); then ,)$1$(and $(call not,$(typeupdates)),; fi)
 
 # ─ ¶ Phony Targets ───────────────────────────────────────────────────
 
@@ -482,7 +537,7 @@ all : $(call built,$(recursivefiles) $(installablefiles)) ;
 
 # Destroy buildfiles.
 clean :
-	$(if $(BUILDDIR),$(silent)$(RM) -rf $(call quote,$(BUILDDIR)/),)
+	$(if $(BUILDDIR),$(silent)$(RM) -f -R $(call quote,$(BUILDDIR)/),)
 
 # Destroy build directory and installed files.
 gone : clean uninstall ;
@@ -500,7 +555,7 @@ list :
 
 # Lists out the destinations of all resulting files (relative to `DESTDIR´).
 listout :
-	@$(PRINTF) '⛩️📰 书社 Output: %s\n' $(call quote,$(foreach file,$(sort $(sourcefiles)),$(call destination,$(file))))
+	@$(PRINTF) '%s\n' $(call quote,$(foreach file,$(sort $(sourcefiles)),$(call destination,$(file))))
 
 # Destroy installed files.
 uninstall :
@@ -508,7 +563,7 @@ uninstall :
 
 # Raise an error when attempting to build any files with recursive dependencies.
 $(call built,$(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,$(call unbuilt,$@)),•|$(recursive))))) && false
+	@$(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 : ;
@@ -521,39 +576,19 @@ FORCE : ;
 # Don’t use any implicit rules.
 .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 : FORCE all default clean gone info install list listout uninstall $(call built,$(recursivefiles)) ;
 
-ifneq ($(typeupdates)$(wildcard $(BUILDDIR)/dependencies)$(wildcard $(BUILDDIR)/destinations),)
-# Reload this make·file if the dependency graph or output destinations have changed.
-#
-# The dependency graph and output destinations are used to set the values of variables in this make·file, so it’s important to ensure that they are actually up·to·date prior to executing any later rules.
-#
-# This recipe only exists after types have been updated or when the dependency graph or destinations file already exists.
-#
-# ※ There is a chance that generating the dependencies will also update the parsers.
-$(THISDIR)/GNUmakefile :: $(BUILDDIR)/dependencies $(BUILDDIR)/destinations
-	$(silent)$(TOUCH) $(THISDIR)/GNUmakefile
-ifeq ($(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 ($(typeupdates),)
-# Reload this make·file if any of the magic files or parsers have changed.
-#
-# These are used to classify source files, so if they have changed then the make·file must be reloaded.
+ifeq ($(notbuilding),)
+# Reload this make·file if the magic file, parser, dependencies, or destinations have changed.
 #
-# 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 $(BUILDDIR)/parser.xslt
+# If the magic file or parser changed, then another restart will be required, as the dependencies and destinations will need to be regenerated.
+$(THISDIR)/GNUmakefile : $(BUILDDIR)/magic.mgc $(BUILDDIR)/parser.xslt $(BUILDDIR)/dependencies $(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'
-	$(silent)$(SLEEP) 1
-	$(silent)$(TOUCH) $(call quote,$(BUILDDIR)/.update-types)
+	$(if $(filter $(BUILDDIR)/magic.mgc $(BUILDDIR)/parser.xslt,$?),$(call inform,$(PRINTF) '%b\n' '\0033[1mMagic file or parsers have updated. Restarting…\0033[22m' >&2)$(newline)$(silent)$(SLEEP) 1,$(if $(typeupdates),$(silent)$(RM) $(call quote,$(BUILDDIR)/.update-types)$(newline),)$(call inform,$(PRINTF) '%b\n' '\0033[1mDependency graph and output destinations updated. Restarting…\0033[22m' >&2))
 endif
 
 # ─ ¶ Build Targets ───────────────────────────────────────────────────
@@ -568,84 +603,82 @@ $(call magicfile,$(MAGIC)) : $(BUILDDIR)/magic/% : $$(call magicsource,$$@)
 # It must be updated if any of the files in the magic directory change.
 $(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…"
+	$(call inform,$(PRINTF) '%s\n' 'Compiling new magic…' >&2)
 	$(silent)$(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.
 $(BUILDDIR)/parser.catalog : $(call diffprereqs,parsers,$(sort $(PARSERS)))
-	@$(ECHO) "Generating catalog of parsers…"
+	$(call inform,$(PRINTF) '%s\n' 'Generating catalog of parsers…' >&2)
 	$(silent)$(XMLCATALOG) --create --noout $(call quote,$@)
-	$(foreach parser,$(PARSERS),$(silent)( $(call id,$(parser)) ) | $(XARGS) -I %% $(XMLCATALOG) --add uri %% $(call quote,$(call fileuri,$(parser))) --noout $(call quote,$@)$(newline))
+	$(foreach parser,$(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 $(THISDIR)/lib/catalog2parser.xslt
-	@$(ECHO) "Generating main parser…"
-	$(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) $(call quote,$(THISDIR)/lib/catalog2parser.xslt) $(call quote,$<)
+	$(call inform,$(PRINTF) '%s\n' 'Generating main parser…' >&2)
+	$(silent)$(XSLTPROC) --nonet --novalid --nomkdir --nowrite $(call quote,$(THISDIR)/lib/catalog2parser.xslt) $(call quote,$<) >|$(call quote,$@)
 	$(silent)$(TOUCH) $(call quote,$(BUILDDIR)/.update-types)
 
+# Generate R·D·F metadata for files.
+#
+# This “depends” on `$(THISDIR)/lib/expandmetadata.xslt´ not because it is an actual dependency, but because a change to that file strongly suggests a change to these rules has occurred as well.
+#
+# If the types have been updated but `typeupdates´ is not active, this recipe is skipped because a restart is forthcoming.
+$(call metadata,$(sourcefiles) $(sourceincludes)) : % : $$(call datadata,$$@) $(THISDIR)/lib/expandmetadata.xslt $(typeupdates)
+	$(call inform,$(call unlesstypeswillupdate,$(PRINTF) '%s\n' $(call quote,Generating metadata for `$<´…) >&2))
+	$(silent)$(call unlesstypeswillupdate,$(call ensuredirectory,$(dir $@)); { if $(TEST) ! -f $(call quote,$(BUILDDIR)/.mtime); then $(PRINTF) '%b' '\n' >|$(call quote,$(BUILDDIR)/.mtime); fi; $(TOUCH) -r $(call quote,$<) $(call quote,$(BUILDDIR)/.mtime); $(DIFF) -u $(call quote,$(BUILDDIR)/.mtime) /dev/null | $(SED) '1!d;s/.*	\([^ ]*\) \([^ ]*\).*$$/\1T\2Z/'; $(CKSUM) $(call quote,$<) | $(SED) 's/[ ].*//'; } | $(xargsmultiquote) | $(XARGS) -E '' $(PRINTF) '<?xml version="1.0"?><书社vocab:$(if $(filter $<,$(sourceincludes)),IncludeFile,SourceFile) xmlns:nie="http://www.semanticdesktop.org/ontologies/2007/01/19/nie#" xmlns:nfo="http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:书社vocab="urn:fdc:ladys.computer:20231231:Shu1She4:vocab:" rdf:about="%s" 书社vocab:path="%s"><nie:interpretedAs>$(if $(filter $<,$(assetfiles)),<nfo:InformationElement nie:mimeType="%s"/>,<nfo:PlainTextDocument nie:mimeType="%s"/>)</nie:interpretedAs><书社vocab:hasParsedFile nfo:fileUrl="%s"/><nfo:fileLastModified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">%s</nfo:fileLastModified><nfo:hasHash nfo:hashAlgorithm="CRC32" nfo:hashValue="%s"/></书社vocab:$(if $(filter $<,$(sourceincludes)),IncludeFile,SourceFile)>' $(call quote,$(call attresc,$(call localuri,$<))) $(call quote,$(call attresc,$(if $(filter $<,$(sourceincludes)),$(call includepath,$<),$(call sourcepath,$<)))) $(call quote,$(call attresc,$(call typeoffile,$<))) $(call quote,$(call attresc,$(call fileuri,$(call parsed,$<)))) >|$(call quote,$@))
+
 # Parse the files.
 #
 # Even plain X·M·L files are parsed, because they may contain X·H·T·M·L `<script>´ elements which contain other kinds of data.
 # Asset files are turned into H·T·M·L embeds pointing to `data:´ U·R·I’s.
+#
+# If the types have been updated but `typeupdates´ is not active, this recipe is skipped because a restart is forthcoming.
 $(call parsed,$(sourcefiles) $(sourceincludes)) : % : $$(call unparsed,$$@) $(BUILDDIR)/parser.xslt $(typeupdates)
-	@$(PRINTF) '%s\n' $(call quote,Processing `$<´…)
-	$(silent)$(call ensuredirectory,$(dir $@))
-	$(silent)$(if $(filter $<,$(assetfiles)),$(PRINTF) '%s\n' $(call quote,<object xmlns="http://www.w3.org/1999/xhtml" type="$(call typeoffile,$<)" data="$(call datauri,$<)"/>) > $(call quote,$@),$(if $(filter $<,$(plaintextfiles)),$(call wrapplaintext,$<),$(call serializexml,$<)) | $(XSLTPROC) --nonet --novalid -o $(call quote,$@) --stringparam BUILDTIME $$(TZ= $(DATE) '+%Y-%m-%dT%H:%M:%SZ') --stringparam IDENTIFIER $(call quote,$(call localuri,$<)) --stringparam SRCTIME '$(call modtime,$<)' --stringparam CKSUM $$($(CKSUM) $(call quote,$<) | $(SED) 's/[ ].*//')$(if $(THISREV), --stringparam THISREV $(call quote,$(THISREV)),)$(if $(SRCREV), --stringparam SRCREV $(call quote,$(SRCREV)),) $(call quote,$(BUILDDIR)/parser.xslt) -)
+	$(call inform,$(call unlesstypeswillupdate,$(PRINTF) '%s\n' $(call quote,Processing `$<´…) >&2))
+	$(silent)$(call unlesstypeswillupdate,$(call ensuredirectory,$(dir $@)); $(if $(filter $<,$(assetfiles)),$(PRINTF) '%s\n' $(call quote,<?xml version="1.0"?><object xmlns="http://www.w3.org/1999/xhtml" type="$(call typeoffile,$<)" data="$(call datauri,$<)"/>) >|$(call quote,$@),$(if $(filter $<,$(plaintextfiles)),$(call wrapplaintext,$<),$(call serializexml,$<)) | $(XSLTPROC) --nonet --novalid --nomkdir --nowrite --stringparam BUILDTIME $$($(DATE) -u '+%Y-%m-%dT%H:%M:%SZ') --stringparam IDENTIFIER $(call quote,$(call localuri,$<))$(if $(THISREV), --stringparam THISREV $(call quote,$(THISREV)),)$(if $(SRCREV), --stringparam SRCREV $(call quote,$(SRCREV)),) $(call quote,$(BUILDDIR)/parser.xslt) - >|$(call quote,$@)))
 
-# Generate a catalog of all parsed files, for use when processing includes.
+# Collect the metadata into a single file, and generate the dependencies and destinations files as side·effects.
 #
-# 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))) $(call quote,$(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)) $(THISDIR)/lib/catalog2dependencies.xslt
-	@$(ECHO) "Identifying dependencies…"
-	$(silent)$(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.
+# Doing this all in one step reduces the number of calls to `xsltproc´ required, but requires that it be called from the build directory (necessitating a subshell).
 #
-# 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…"
-	$(silent)$(TOUCH) $(call quote,$@)
-	$(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) $(call quote,$(THISDIR)/lib/catalog2destinations.xslt) $(call quote,$<)
+# If the types have been updated but `typeupdates´ is not active, this recipe is skipped because a restart is forthcoming.
+$(BUILDDIR)/dependencies $(BUILDDIR)/destinations $(BUILDDIR)/metadata : $(call diffprereqs,metadatas,$(call metadata,$(sort $(sourcefiles) $(sourceincludes)))) $(call parsed,$(filter-out $(assetfiles),$(sourcefiles) $(sourceincludes))) $(THISDIR)/lib/expandmetadata.xslt
+	$(call inform,$(call unlesstypeswillupdate,$(PRINTF) '%s\n' 'Compiling metadata…' >&2))
+	$(silent)$(call unlesstypeswillupdate,{ $(PRINTF) '<?xml version="1.0"?><rdf:RDF xmlns:nie="http://www.semanticdesktop.org/ontologies/2007/01/19/nie#" xmlns:nfo="http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:书社vocab="urn:fdc:ladys.computer:20231231:Shu1She4:vocab:"><书社vocab:BuildDirectory nfo:fileUrl="%s"/>' $(call quote,$(call attresc,$(call fileuri,$(BUILDDIR)))); {$(foreach meta,$(call metadata,$(sort $(sourcefiles) $(sourceincludes))), $(CAT) $(call quote,$(meta));) } | $(SED) 's/<?xml version="1.0"?>//g'; $(PRINTF) '%s\n' '</rdf:RDF>'; } | ( $(CD) $(call quote,$(BUILDDIR)); $(XSLTPROC) --nonet --novalid --nomkdir $(call quote,$(abspath $(THISDIR)/lib/expandmetadata.xslt)) - ) | $(XMLLINT) --nonet --nsclean - >|$(call quote,$(BUILDDIR)/metadata))
 
 # Generate the main transform.
 $(BUILDDIR)/transform.catalog : $(call diffprereqs,transforms,$(sort $(TRANSFORMS)))
-	@$(ECHO) "Generating catalog of transforms…"
+	$(call inform,$(PRINTF) '%s\n' 'Generating catalog of transforms…' >&2)
 	$(silent)$(XMLCATALOG) --create --noout $(call quote,$@)
-	$(foreach transform,$(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) --nonet --novalid -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 $(BUILDDIR)/metadata $(THISDIR)/lib/catalog2transform.xslt
+	$(call inform,$(PRINTF) '%s\n' 'Generating main transform…' >&2)
+	$(silent)$(XSLTPROC) --nonet --novalid --nomkdir --nowrite --stringparam METADATA $(call quote,$(call fileuri,$(BUILDDIR))/metadata) $(call quote,$(THISDIR)/lib/catalog2transform.xslt) $(call quote,$<) >|$(call quote,$@)
 
 # 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,$$@)))
-	@$(PRINTF) '%s\n' $(call quote,Compiling </$*>…)
+$(call compiled,$(compilablefiles)) : $(BUILDDIR)/results/% : $$(call parsed,$$(call uncompiled,$$@)) $$(call parsed,$$(call dependencies,$$(call uncompiled,$$@))) $(BUILDDIR)/transform.xslt $(BUILDDIR)/metadata
+	$(call inform,$(PRINTF) '%s\n' $(call quote,Compiling </$*>…) >&2)
 	$(silent)$(call ensuredirectory,$(dir $@))
-	$(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) --stringparam CATALOG 'catalog' --stringparam BUILDTIME $$(TZ= $(DATE) '+%Y-%m-%dT%H:%M:%SZ') --stringparam SRCTIME '$(call modtime,$(call uncompiled,$@))' --stringparam IDENTIFIER $(call quote,$(call localuri,$(call uncompiled,$@))) --stringparam PATH $(call quote,/$*) --stringparam CKSUM $$($(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) $(call quote,$<)
+	$(silent)$(XSLTPROC) --nonet --novalid --nomkdir --nowrite --stringparam METADATA 'metadata' --stringparam BUILDTIME $$($(DATE) -u '+%Y-%m-%dT%H:%M:%SZ') --stringparam IDENTIFIER $(call quote,$(call localuri,$(call uncompiled,$@)))$(if $(THISREV), --stringparam THISREV $(call quote,$(THISREV)),)$(if $(SRCREV), --stringparam SRCREV $(call quote,$(SRCREV)),) $(call quote,$(BUILDDIR)/transform.xslt) $(call quote,$<) >|$(call quote,$@)
 
 # Create the final files from the compiled results (or error in the case of recursive ones).
 $(call built,$(compilablefiles)) : $(BUILDDIR)/public/% : $(BUILDDIR)/results/%
-	@$(PRINTF) '%s\n' $(call quote,Building </$*>…)
+	$(call inform,$(PRINTF) '%s\n' $(call quote,Building </$*>…) >&2)
 	$(silent)$(call ensuredirectory,$(dir $@))
+	$(silent)$(RM) -f -R $(call quote,$@)
 	$(silent)$(call processresultto,$<,$@,$*)
 $(call built,$(filter $(assetfiles),$(sourcefiles))) : $(BUILDDIR)/public/% : $$(call unbuilt,$$@)
-	@$(PRINTF) '%s\n' $(call quote,Building </$*>…)
+	$(call inform,$(PRINTF) '%s\n' $(call quote,Building </$*>…) >&2)
 	$(silent)$(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).
 $(call installed,$(recursivefiles) $(installablefiles)) : $(DESTDIR)/% : $(BUILDDIR)/public/%
-	@$(PRINTF) '%s\n' $(call quote,Installing </$*>…)
+	$(call inform,$(PRINTF) '%s\n' $(call quote,Installing </$*>…) >&2)
 	$(silent)$(call ensuredirectory,$(dir $@))
-	$(silent)$(CP) $(call quote,$<) $(call quote,$@)
-	$(silent)for associated in $$($(call associatedfiles,$(dir $<),$(notdir $<))); do $(PRINTF) '%s\n' "$$associated" | $(SED) 's/^\(.*\)"{\(.*\)}"\(.*\)$$/\1\2\3/' | $(XARGS) -0 $(PRINTF) '%s%s\n' $(call quote,$(dir $@)) | $(XARGS) -0 $(CP) $(call quote,$(dir $<))"$$associated"; done
+	$(silent)$(RM) -f -R $(call quote,$@)
+	$(silent)$(CP) -R $(call quote,$<) $(call quote,$@)
 
 # ━ § BEGIN ARCHIVE MAKE·FILE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
@@ -667,20 +700,20 @@ endif
 # Reload this make·file if the archive components have changed.
 $(THISDIR)/GNUmakefile : $(BUILDDIR)/index
 	$(silent)$(TOUCH) $(THISDIR)/GNUmakefile
-	@$(PRINTF) '%b\n' $(call quote,\0033[1mArchive components for </$(NAME)> updated. Restarting…\0033[22m)
+	$(call inform,$(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) $(call quote,$<)
+	$(silent)$(XSLTPROC) --nonet --novalid --nomkdir --nowrite $(call quote,$(THISDIR)/lib/archive2extractor.xslt) $(call quote,$<) >|$(call quote,$@)
 
 # 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 $(SRC)
-	@$(PRINTF) '%s\n' $(call quote,Extracting components for </$(NAME)>…)
+	$(call inform,$(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))
 
@@ -689,72 +722,19 @@ $(foreach file,$(archivefiles),$(BUILDDIR)/extracted/$(file)) : $(BUILDDIR)/inde
 
 # Process each extractor component into its final form.
 $(foreach file,$(archivefiles),$(BUILDDIR)/files/$(file)) : $(BUILDDIR)/files/% : $(BUILDDIR)/extracted/%
-	@$(PRINTF) '%s\n' $(call quote,Building </$(NAME)/$*>…)
-	$(silent)$(call ensuredirectory,$(dir $@))
-	$(silent)$(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)/% : $(foreach file,$(archivefiles),$(BUILDDIR)/files/$(file))
-	@$(PRINTF) '%s\n' $(call quote,Archiving </$(NAME)>…)
-	$(silent)$(call ensuredirectory,$(dir $@))
-	$(silent)cd $(call quote,$(BUILDDIR)/files); $(PRINTF) '%s\n' $(foreach file,$(archivefiles),$(call quote,$(file))) | $(PAX) -w > $(call quote,$(abspath $@))
-
-# ━ § BEGIN PAGED MAKE·FILE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-
-else ifeq ($(MODE),urn:fdc:ladys.computer:20231231:Shu1She4:mode:paged)
-
-# ─ ¶ Non‐Recipe Variable Definitions ─────────────────────────────────
-
-# Get the list of pages.
-ifneq ($(wildcard $(BUILDDIR)/index),)
-override pagefiles := $(patsubst ./pages/%,%,$(shell $(CAT) $(call quote,$(BUILDDIR)/index)))
-endif
-
-# ─ ¶ Recipe Variable Definitions ─────────────────────────────────────
-
-# ─ ¶ Phony Targets ───────────────────────────────────────────────────
-
-# ─ ¶ Special Targets ─────────────────────────────────────────────────
-
-# Reload this make·file if the pages have changed.
-$(THISDIR)/GNUmakefile : $(BUILDDIR)/index
-	$(silent)$(TOUCH) $(THISDIR)/GNUmakefile
-	@$(PRINTF) '%b\n' $(call quote,\0033[1mPages for </$(NAME)> updated. Restarting…\0033[22m)
-
-# ─ ¶ Build Targets ───────────────────────────────────────────────────
-
-# Build the extractor transform for extracting the pages of the paged source file.
-$(BUILDDIR)/extractor.xslt : $(SRC) $(THISDIR)/lib/paged2extractor.xslt
-	$(silent)$(call ensuredirectory,$(dir $@))
-	$(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) --stringparam NAME $(call quote,$(call notdir,$<)) $(call quote,$(THISDIR)/lib/paged2extractor.xslt) $(call quote,$<)
-
-# Use the extractor transform to extract the paged source file out into its pages.
-#
-# This target sleeps for 1 second to ensure the resulting index will always be newer than this make·file.
-$(BUILDDIR)/index : $(BUILDDIR)/extractor.xslt $(SRC)
-	@$(PRINTF) '%s\n' $(call quote,Extracting pages for </$(NAME)>…)
-	$(silent)$(SLEEP) 1
-	$(silent)$(XSLTPROC) --nonet --novalid -o $(call quote,$@) --writesubtree $(call quote,$(dir $@)) $(call quote,$<) $(call quote,$(SRC))
-
-# All other pages are extracted alongside the base.
-$(foreach file,$(pagefiles),$(BUILDDIR)/pages/$(file)) : $(BUILDDIR)/index ;
-
-# Process each page into its final form.
-$(foreach file,$(pagefiles),$(BUILDDIR)/public/$(file)) : $(BUILDDIR)/public/% : $(BUILDDIR)/pages/%
-	@$(PRINTF) '%s\n' $(call quote,Building page `$(subst }",,$(subst "{,,$*))´ of </$(NAME)>…)
+	$(call inform,$(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)/% : $(foreach file,$(pagefiles),$(BUILDDIR)/public/$(file))
-	@$(PRINTF) '%s\n' $(call quote,Collecting pages for </$(NAME)>…)
+$(DESTDIR)/% : $(SRC) $(foreach file,$(archivefiles),$(BUILDDIR)/files/$(file))
+	$(call inform,$(PRINTF) '%s\n' $(call quote,Archiving </$(NAME)>…) >&2)
 	$(silent)$(call ensuredirectory,$(dir $@))
-	$(silent)$(call removeassociatedfiles,$@)
-	$(silent)cp $(foreach file,$(pagefiles),$(call quote,$(BUILDDIR)/public/$(file))) $(DESTDIR)
+	$(silent)$(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 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━