v1.16.6

FIXED:
* tplx/sprigx float to string non-truncating was... truncating. it no
  longer is.

.githooks/pre-commit/01-docgen

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+orig="${PWD}"
+
+if ! command -v asciidoctor &> /dev/null;
+then
+        exit 0
+fi
+
+set -e
+
+for f in $(find . -type f -iname "README.adoc"); do
+        filename=$(basename -- "${f}")
+	docsdir=$(dirname -- "${f}")
+        nosuffix="${filename%.*}"
+	pfx="${docsdir}/${nosuffix}"
+
+	newf="${pfx}.html"
+        asciidoctor -a ROOTDIR="${orig}/" -o "${newf}" "${f}"
+	echo "Generated ${newf} from ${f}"
+        git add "${newf}"
+        if command -v pandoc &> /dev/null;
+        then
+		newf="${pfx}.md"
+
+		set +e
+                #asciidoctor -a ROOTDIR="${orig}/" -b docbook -o - "${f}" | pandoc -f docbook -t markdown_strict -o "${newf}"
+                #asciidoctor -a ROOTDIR="${orig}/" -b html -o - "${f}" | pandoc -f html -t markdown_strict -o "${newf}"
+                asciidoctor -a ROOTDIR="${orig}/" -b html -o - "${f}" | pandoc -f html -t gfm -o "${newf}"
+		if [ $? -eq 0 ];
+		then
+			echo "Generated ${newf} from ${f}"
+	                git add "${newf}"
+		else
+			echo "Failed to generate ${newf} from ${f}"
+			git rm "${newf}" 2>/dev/null
+		fi
+		set -e
+        fi
+	cd ${orig}
+done
+echo "Regenerated docs"

chkplat.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+# go tool dist list for all valid GOOS/GOARCH targets.
+
+for tgt in $(go tool dist list);
+do
+	o="$(echo ${tgt} | cut -f1 -d '/')"
+	a="$(echo ${tgt} | cut -f2 -d '/')"
+	out="$(env GOOS=${o} GOARCH=${a} go build ./... 2>&1)"
+	ret=${?}
+	if [ $ret -ne 0 ];
+	then
+		echo "OS:   ${o}"
+		echo "ARCH: ${a}"
+		echo "${out}"
+		echo
+		echo
+	fi
+done

go.mod

@@ -3,14 +3,33 @@ module r00t2.io/goutils
 go 1.25
 
 require (
-	github.com/coreos/go-systemd/v22 v22.6.0
+	github.com/Masterminds/sprig/v3 v3.3.0
+	github.com/coreos/go-systemd/v22 v22.7.0
+	github.com/davecgh/go-spew v1.1.1
 	github.com/google/uuid v1.6.0
+	github.com/shirou/gopsutil/v4 v4.25.12
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba
-	golang.org/x/sys v0.39.0
+	golang.org/x/sys v0.40.0
-	r00t2.io/sysutils v1.15.1
+	r00t2.io/sysutils v1.16.2
 )
 
 require (
+	dario.cat/mergo v1.0.2 // indirect
+	github.com/Masterminds/goutils v1.1.1 // indirect
+	github.com/Masterminds/semver/v3 v3.4.0 // indirect
 	github.com/djherbis/times v1.6.0 // indirect
+	github.com/ebitengine/purego v0.9.1 // indirect
+	github.com/go-ole/go-ole v1.3.0 // indirect
+	github.com/huandu/xstrings v1.5.0 // indirect
+	github.com/lufia/plan9stats v0.0.0-20251013123823-9fd1530e3ec3 // indirect
+	github.com/mitchellh/copystructure v1.2.0 // indirect
+	github.com/mitchellh/reflectwalk v1.0.2 // indirect
+	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
+	github.com/shopspring/decimal v1.4.0 // indirect
+	github.com/spf13/cast v1.10.0 // indirect
+	github.com/tklauser/go-sysconf v0.3.16 // indirect
+	github.com/tklauser/numcpus v0.11.0 // indirect
+	github.com/yusufpapurcu/wmi v1.2.4 // indirect
+	golang.org/x/crypto v0.47.0 // indirect
 	golang.org/x/sync v0.19.0 // indirect
 )

go.sum

@@ -1,16 +1,71 @@
-github.com/coreos/go-systemd/v22 v22.6.0 h1:aGVa/v8B7hpb0TKl0MWoAavPDmHvobFe5R5zn0bCJWo=
+dario.cat/mergo v1.0.2 h1:85+piFYR1tMbRrLcDwR18y4UKJ3aH1Tbzi24VRW1TK8=
-github.com/coreos/go-systemd/v22 v22.6.0/go.mod h1:iG+pp635Fo7ZmV/j14KUcmEyWF+0X7Lua8rrTWzYgWU=
+dario.cat/mergo v1.0.2/go.mod h1:E/hbnu0NxMFBjpMIE34DRGLWqDy0g5FuKDhCb31ngxA=
+github.com/Masterminds/goutils v1.1.1 h1:5nUrii3FMTL5diU80unEVvNevw1nH4+ZV4DSLVJLSYI=
+github.com/Masterminds/goutils v1.1.1/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU=
+github.com/Masterminds/semver/v3 v3.4.0 h1:Zog+i5UMtVoCU8oKka5P7i9q9HgrJeGzI9SA1Xbatp0=
+github.com/Masterminds/semver/v3 v3.4.0/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
+github.com/Masterminds/sprig/v3 v3.3.0 h1:mQh0Yrg1XPo6vjYXgtf5OtijNAKJRNcTdOOGZe3tPhs=
+github.com/Masterminds/sprig/v3 v3.3.0/go.mod h1:Zy1iXRYNqNLUolqCpL4uhk6SHUMAOSCzdgBfDb35Lz0=
+github.com/coreos/go-systemd/v22 v22.7.0 h1:LAEzFkke61DFROc7zNLX/WA2i5J8gYqe0rSj9KI28KA=
+github.com/coreos/go-systemd/v22 v22.7.0/go.mod h1:xNUYtjHu2EDXbsxz1i41wouACIwT7Ybq9o0BQhMwD0w=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/djherbis/times v1.6.0 h1:w2ctJ92J8fBvWPxugmXIv7Nz7Q3iDMKNx9v5ocVH20c=
 github.com/djherbis/times v1.6.0/go.mod h1:gOHeRAz2h+VJNZ5Gmc/o7iD9k4wW7NMVqieYCY99oc0=
+github.com/ebitengine/purego v0.9.1 h1:a/k2f2HQU3Pi399RPW1MOaZyhKJL9w/xFpKAg4q1s0A=
+github.com/ebitengine/purego v0.9.1/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
+github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
+github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
+github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
+github.com/go-ole/go-ole v1.3.0 h1:Dt6ye7+vXGIKZ7Xtk4s6/xVdGDQynvom7xCFEdWr6uE=
+github.com/go-ole/go-ole v1.3.0/go.mod h1:5LS6F96DhAwUc7C+1HLexzMXY1xGRSryjyPPKW6zv78=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/huandu/xstrings v1.5.0 h1:2ag3IFq9ZDANvthTwTiqSSZLjDc+BedvHPAp5tJy2TI=
+github.com/huandu/xstrings v1.5.0/go.mod h1:y5/lhBue+AyNmUVz9RLU9xbLR0o4KIIExikq4ovT0aE=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/lufia/plan9stats v0.0.0-20251013123823-9fd1530e3ec3 h1:PwQumkgq4/acIiZhtifTV5OUqqiP82UAl0h87xj/l9k=
+github.com/lufia/plan9stats v0.0.0-20251013123823-9fd1530e3ec3/go.mod h1:autxFIvghDt3jPTLoqZ9OZ7s9qTGNAWmYCjVFWPX/zg=
+github.com/mitchellh/copystructure v1.2.0 h1:vpKXTN4ewci03Vljg/q9QvCGUDttBOGBIa15WveJJGw=
+github.com/mitchellh/copystructure v1.2.0/go.mod h1:qLl+cE2AmVv+CoeAwDPye/v+N2HKCj9FbZEVFJRxO9s=
+github.com/mitchellh/reflectwalk v1.0.2 h1:G2LzWKi524PWgd3mLHV8Y5k7s6XUvT0Gef6zxSIeXaQ=
+github.com/mitchellh/reflectwalk v1.0.2/go.mod h1:mSTlrgnPZtwu0c4WaC2kGObEpuNDbx0jmZXqmk4esnw=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 h1:o4JXh1EVt9k/+g42oCprj/FisM4qX9L3sZB3upGN2ZU=
+github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55/go.mod h1:OmDBASR4679mdNQnz2pUhc2G8CO2JrUAVFDRBDP/hJE=
+github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
+github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
+github.com/shirou/gopsutil/v4 v4.25.12 h1:e7PvW/0RmJ8p8vPGJH4jvNkOyLmbkXgXW4m6ZPic6CY=
+github.com/shirou/gopsutil/v4 v4.25.12/go.mod h1:EivAfP5x2EhLp2ovdpKSozecVXn1TmuG7SMzs/Wh4PU=
+github.com/shopspring/decimal v1.4.0 h1:bxl37RwXBklmTi0C79JfXCEBD1cqqHt0bbgBAGFp81k=
+github.com/shopspring/decimal v1.4.0/go.mod h1:gawqmDU56v4yIKSwfBSFip1HdCCXN8/+DMd9qYNcwME=
+github.com/spf13/cast v1.10.0 h1:h2x0u2shc1QuLHfxi+cTJvs30+ZAHOGRic8uyGTDWxY=
+github.com/spf13/cast v1.10.0/go.mod h1:jNfB8QC9IA6ZuY2ZjDp0KtFO2LZZlg4S/7bzP6qqeHo=
+github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
+github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
+github.com/tklauser/go-sysconf v0.3.16 h1:frioLaCQSsF5Cy1jgRBrzr6t502KIIwQ0MArYICU0nA=
+github.com/tklauser/go-sysconf v0.3.16/go.mod h1:/qNL9xxDhc7tx3HSRsLWNnuzbVfh3e7gh/BmM179nYI=
+github.com/tklauser/numcpus v0.11.0 h1:nSTwhKH5e1dMNsCdVBukSZrURJRoHbSEQjdEbY+9RXw=
+github.com/tklauser/numcpus v0.11.0/go.mod h1:z+LwcLq54uWZTX0u/bGobaV34u6V7KNlTZejzM6/3MQ=
+github.com/yusufpapurcu/wmi v1.2.4 h1:zFUKzehAFReQwLys1b/iSMl+JQGSCSjtVqQn9bBrPo0=
+github.com/yusufpapurcu/wmi v1.2.4/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
 go4.org/netipx v0.0.0-20231129151722-fdeea329fbba h1:0b9z3AuHCjxk0x/opv64kcgZLBseWJUpBw5I82+2U4M=
 go4.org/netipx v0.0.0-20231129151722-fdeea329fbba/go.mod h1:PLyyIXexvUFg3Owu6p/WfdlivPbZJsZdgWZlrGope/Y=
+golang.org/x/crypto v0.47.0 h1:V6e3FRj+n4dbpw86FJ8Fv7XVOql7TEwpHapKoMJ/GO8=
+golang.org/x/crypto v0.47.0/go.mod h1:ff3Y9VzzKbwSSEzWqJsJVBnWmRwRSHt/6Op5n9bQc4A=
 golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
 golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201204225414-ed752295db88/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20220615213510-4f61da869c0c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
+golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
-r00t2.io/sysutils v1.15.0 h1:FSnREfbXDhBQEO7LMpnRQeKlPshozxk9XHw3YgWRgRg=
+golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-r00t2.io/sysutils v1.15.0/go.mod h1:28qB0074EIRQ8Sy/ybaA5jC3qA32iW2aYLkMCRhyAFM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-r00t2.io/sysutils v1.15.1/go.mod h1:T0iOnaZaSG5NE1hbXTqojRZc0ia/u8TB73lV7zhMz58=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

logging/consts_nix.go

@@ -1,5 +1,4 @@
 //go:build !(windows || plan9 || wasip1 || js || ios)
-// +build !windows,!plan9,!wasip1,!js,!ios
 
 // I mean maybe it works for plan9 and ios, I don't know.
 

logging/consts_oldnix.go

@@ -1,3 +1,5 @@
+//go:build !(windows || plan9 || wasip1 || js || ios || linux)
+
 package logging
 
 var (

logging/funcs_oldnix.go

@@ -1,5 +1,4 @@
 //go:build !(windows || plan9 || wasip1 || js || ios || linux)
-// +build !windows,!plan9,!wasip1,!js,!ios,!linux
 
 // Linux is excluded because it has its own.
 

multierr/TODO

@@ -0,0 +1,21 @@
+- add unwrapping
+  https://go.dev/blog/go1.13-errors#the-unwrap-method
+- add As method, takes a ptr to a slice of []error to return the first matching error type (errors.As) for each?
+  - add AsAll [][]error ptr param for multiple errors per type?
+  - add Map, returns map[string][]error, where key is k:
+	var sb strings.Builder
+	t = reflect.TypeOf(err)
+	if t.PkgPath() != "" {
+		sb.WriteString(t.PkgPath())
+	} else {
+		sb.WriteString("<UNKNOWN>")
+	}
+	sb.WriteString(".")
+	if t.Name() != "" {
+		sb.WriteString(t.Name())
+	} else {
+		sb.WriteString("<UNKNOWN>")
+	}
+	k = sb.String()
+  - support generics for similar to above?
+    - this might allow for "error filtering"

netx/funcs.go

@@ -13,7 +13,7 @@ import (
 /*
 AddrRfc returns an RFC-friendly string from an IP address ([net/netip.Addr]).
 
-If addr is an IPv4 address, it will simmply be the string representation (e.g. "203.0.113.1").
+If addr is an IPv4 address, it will simply be the string representation (e.g. "203.0.113.1").
 
 If addr is an IPv6 address, it will be enclosed in brackets (e.g. "[2001:db8::1]").
 

remap/errs.go

@@ -0,0 +1,11 @@
+package remap
+
+import (
+	`errors`
+)
+
+var (
+	ErrInvalidIdxPair error = errors.New("invalid index pair; [1] must be >= [0]")
+	ErrNoStr          error = errors.New("no string to slice/reslice/subslice")
+	ErrShortStr       error = errors.New("string too short to slice/reslice/subslice")
+)

remap/funcs.go

@@ -111,3 +111,60 @@ func MustCompilePOSIX(expr string) (r *ReMap) {
 
 	return
 }
+
+/*
+strIdxSlicer takes string s, and returns the substring marked by idxPair,
+where:
+
+	idxPair = [2]int{
+		<substring START POSITION>,
+		<substring END BOUNDARY>,
+	}
+
+That is, to get `oo` from `foobar`,
+
+	idxPair = [2]int{1, 3}
+	# NOT:
+	#idxPair = [2]int{1, 2}
+
+subStr will be empty and matched will be false if:
+
+	* idxPair[0] < 0
+	* idxPair[1] < 0
+
+It will panic with [ErrShortStr] if:
+
+	* idxPair[0] > len(s)-1
+	* idxPair[1] > len(s)
+
+It will panic with [ErrInvalidIdxPair] if:
+
+	* idxPair[0] > idxPair[1]
+
+It will properly handle single-character addresses (i.e. idxPair[0] == idxPair[1]).
+*/
+func strIdxSlicer(s string, idxPair [2]int) (subStr string, matched bool) {
+
+	if idxPair[0] < 0 || idxPair[1] < 0 {
+		return
+	}
+	matched = true
+
+	if (idxPair[0] > (len(s) - 1)) ||
+		(idxPair[1] > len(s)) {
+		panic(ErrShortStr)
+	}
+	if idxPair[0] > idxPair[1] {
+		panic(ErrInvalidIdxPair)
+	}
+
+	if idxPair[0] == idxPair[1] {
+		// single character
+		subStr = string(s[idxPair[0]])
+	} else {
+		// multiple characters
+		subStr = s[idxPair[0]:idxPair[1]]
+	}
+
+	return
+}

remap/funcs_remap.go

@@ -10,6 +10,9 @@ It will panic if the embedded [regexp.Regexp] is nil.
 Each match for each group is in a slice keyed under that group name, with that slice
 ordered by the indexing done by the regex match itself.
 
+This operates on only the first found match (like [regexp.Regexp.FindSubmatch]).
+To operate on *all* matches, use [ReMap.MapAll].
+
 In summary, the parameters are as follows:
 
 # inclNoMatch
@@ -33,6 +36,7 @@ is provided but b does not match then matches will be:
 If true (and inclNoMatch is true), instead of a single nil the group's values will be
 a slice of nil values explicitly matching the number of times the group name is specified
 in the pattern.
+May be unpredictable if the same name is used multiple times for different capture groups across multiple patterns.
 
 For example, if a pattern:
 
@@ -144,6 +148,9 @@ func (r *ReMap) Map(b []byte, inclNoMatch, inclNoMatchStrict, mustMatch bool) (m
 		if inclNoMatch {
 			if len(names) >= 1 {
 				for _, grpNm = range names {
+					if grpNm == "" {
+						continue
+					}
 					matches[grpNm] = nil
 				}
 			}
@@ -156,7 +163,7 @@ func (r *ReMap) Map(b []byte, inclNoMatch, inclNoMatchStrict, mustMatch bool) (m
 		grpNm = names[mIdx]
 		/*
 			Thankfully, it's actually a build error if a pattern specifies a named
-			capture group with an empty name.
+			capture group with an matched name.
 			So we don't need to worry about accounting for that,
 			and can just skip over grpNm == "" (which is an *unnamed* capture group).
 		*/
@@ -192,6 +199,138 @@ func (r *ReMap) Map(b []byte, inclNoMatch, inclNoMatchStrict, mustMatch bool) (m
 	// This *technically* should be completely handled above.
 	if inclNoMatch {
 		for _, grpNm = range names {
+			if grpNm == "" {
+				continue
+			}
+			if _, ok = tmpMap[grpNm]; !ok {
+				tmpMap[grpNm] = nil
+			}
+		}
+	}
+
+	if len(tmpMap) > 0 {
+		matches = tmpMap
+	}
+
+	return
+}
+
+/*
+MapAll behaves exactly like [ReMap.Map] but will "squash"/consolidate *all* found matches, not just the first occurrence,
+into the group name.
+
+You likely want to use this instead of [ReMap.Map] for multiline patterns.
+*/
+func (r *ReMap) MapAll(b []byte, inclNoMatch, inclNoMatchStrict, mustMatch bool) (matches map[string][][]byte) {
+
+	var ok bool
+	var mIdx int
+	var isEmpty bool
+	var match []byte
+	var grpNm string
+	var names []string
+	var mbGrp [][]byte
+	var ptrnNms []string
+	var matchBytes [][][]byte
+	var tmpMap map[string][][]byte = make(map[string][][]byte)
+
+	if b == nil {
+		return
+	}
+
+	names = r.Regexp.SubexpNames()[:]
+	matchBytes = r.Regexp.FindAllSubmatch(b, -1)
+
+	if matchBytes == nil {
+		// b does not match pattern
+		if !mustMatch {
+			matches = make(map[string][][]byte)
+		}
+		return
+	}
+
+	if names == nil || len(names) == 0 || len(names) == 1 {
+		/*
+			no named capture groups;
+			technically only the last condition would be the case.
+		*/
+		if inclNoMatch {
+			matches = make(map[string][][]byte)
+		}
+		return
+	}
+	names = names[1:]
+
+	tmpMap = make(map[string][][]byte)
+
+	// From here, it behaves (sort of) like ReMap.Map
+	// except mbGrp is like matchBytes in Map.
+	for _, mbGrp = range matchBytes {
+
+		// Unlike ReMap.Map, we have to do a little additional logic.
+		isEmpty = false
+		ptrnNms = make([]string, 0, len(names))
+
+		if mbGrp == nil {
+			isEmpty = true
+		}
+
+		if !isEmpty {
+			if len(mbGrp) == 0 || len(mbGrp) == 1 {
+				/*
+					no submatches whatsoever.
+				*/
+				isEmpty = true
+			} else {
+				mbGrp = mbGrp[1:]
+
+				for mIdx, match = range mbGrp {
+					if mIdx > len(names) {
+						break
+					}
+					grpNm = names[mIdx]
+					if grpNm == "" {
+						continue
+					}
+					ptrnNms = append(ptrnNms, grpNm)
+
+					if match == nil {
+						// This specific group didn't match, but it matched the whole pattern.
+						if !inclNoMatch {
+							continue
+						}
+						if _, ok = tmpMap[grpNm]; !ok {
+							if !inclNoMatchStrict {
+								tmpMap[grpNm] = nil
+							} else {
+								tmpMap[grpNm] = [][]byte{nil}
+							}
+						} else {
+							if inclNoMatchStrict {
+								tmpMap[grpNm] = append(tmpMap[grpNm], nil)
+							}
+						}
+						continue
+					}
+
+					if _, ok = tmpMap[grpNm]; !ok {
+						tmpMap[grpNm] = make([][]byte, 0)
+					}
+					tmpMap[grpNm] = append(tmpMap[grpNm], match)
+				}
+			}
+		}
+
+		// I can't recall why I capture this.
+		_ = ptrnNms
+	}
+
+	// *Theoretically* all of these should be populated with at least a nil.
+	if inclNoMatch {
+		for _, grpNm = range names {
+			if grpNm == "" {
+				continue
+			}
 			if _, ok = tmpMap[grpNm]; !ok {
 				tmpMap[grpNm] = nil
 			}
@@ -207,10 +346,13 @@ func (r *ReMap) Map(b []byte, inclNoMatch, inclNoMatchStrict, mustMatch bool) (m
 
 /*
 MapString is exactly like [ReMap.Map], but operates on (and returns) strings instead.
-(matches will always be nil if s == “.)
+(matches will always be nil if s == "".)
 
 It will panic if the embedded [regexp.Regexp] is nil.
 
+This operates on only the first found match (like [regexp.Regexp.FindStringSubmatch]).
+To operate on *all* matches, use [ReMap.MapStringAll].
+
 A small deviation and caveat, though; empty strings instead of nils (because duh) will occupy slice placeholders (if `inclNoMatchStrict` is specified).
 This unfortunately *does not provide any indication* if an empty string positively matched the pattern (a "hit") or if it was simply
 not matched at all (a "miss"). If you need definitive determination between the two conditions, it is instead recommended to either
@@ -239,6 +381,7 @@ is provided but s does not match then matches will be:
 If true (and inclNoMatch is true), instead of a single nil the group's values will be
 a slice of empty string values explicitly matching the number of times the group name is specified
 in the pattern.
+May be unpredictable if the same name is used multiple times for different capture groups across multiple patterns.
 
 For example, if a pattern:
 
@@ -308,27 +451,19 @@ func (r *ReMap) MapString(s string, inclNoMatch, inclNoMatchStrict, mustMatch bo
 	var ok bool
 	var endIdx int
 	var startIdx int
-	var chunkIdx int
+	var grpIdx int
 	var grpNm string
 	var names []string
 	var matchStr string
-	/*
+	var si stringIndexer
-		A slice of indices or index pairs.
-		For each element `e` in idxChunks,
-		* if `e` is nil, no group match.
-		* if len(e) == 1, only a single character was matched.
-		* otherwise len(e) == 2, the start and end of the match.
-	*/
-	var idxChunks [][]int
 	var matchIndices []int
-	var chunkIndices []int // always 2 elements; start pos and end pos
 	var tmpMap map[string][]string = make(map[string][]string)
 
 	/*
 		OK so this is a bit of a deviation.
 
 		It's not as straightforward as above, because there isn't an explicit way
-		like above to determine if a pattern was *matched as an empty string* vs.
+		like above to determine if a pattern was *matched as an matched string* vs.
 		*not matched*.
 
 		So instead do roundabout index-y things.
@@ -384,26 +519,34 @@ func (r *ReMap) MapString(s string, inclNoMatch, inclNoMatchStrict, mustMatch bo
 		matches = make(map[string][]string)
 		if inclNoMatch {
 			for _, grpNm = range names {
-				if grpNm != "" {
+				if grpNm == "" {
-					matches[grpNm] = nil
+					continue
 				}
+				matches[grpNm] = nil
 			}
 		}
 		return
 	}
-	matchIndices = matchIndices[2:]
 
 	/*
-		A reslice of `matchIndices` starts at 2 (as long as `names` is sliced [1:])
+		The reslice of `matchIndices` starts at 2	because they're in pairs:
-		because they're in pairs: []int{<start>, <end>, <start>, <end>, ...}
+
-		and the first pair is the entire pattern match (un-resliced names[0]).
+			[]int{<start>, <end>, <start>, <end>, ...}
-		Thus the len(matchIndices) == 2*len(names), *even* if you reslice.
+
+		and the first pair is the entire pattern match (un-resliced names[0],
+		un-resliced matchIndices[0]).
+
+		Thus the len(matchIndices) == 2*len(names) (*should*, that is), *even* if you reslice.
 		Keep in mind that since the first element of names is removed,
-		we reslices matchIndices as well (above).
+		we reslice matchIndices as well.
 	*/
-	idxChunks = make([][]int, len(names))
+	matchIndices = matchIndices[2:]
-	chunkIdx = 0
+
-	endIdx = 0
+	tmpMap = make(map[string][]string)
+
+	// Note that the second index is the *upper boundary*, not a *position in the string*
+	// so these indices are perfectly usable as-is as returned from the regexp methods.
+	// http://golang.org/ref/spec#Slice_expressions
 	for startIdx = 0; endIdx < len(matchIndices); startIdx += 2 {
 		endIdx = startIdx + 2
 		// This technically should never happen.
@@ -411,77 +554,253 @@ func (r *ReMap) MapString(s string, inclNoMatch, inclNoMatchStrict, mustMatch bo
 			endIdx = len(matchIndices)
 		}
 
-		chunkIndices = matchIndices[startIdx:endIdx]
+		if grpIdx >= len(names) {
-
+			break
-		if chunkIndices[0] == -1 || chunkIndices[1] == -1 {
-			// group did not match
-			chunkIndices = nil
-		} else {
-			// single character
-			if chunkIndices[0] == chunkIndices[1] {
-				chunkIndices = []int{chunkIndices[0]}
-			} else {
-				chunkIndices = matchIndices[startIdx:endIdx]
-			}
 		}
-		idxChunks[chunkIdx] = chunkIndices
-		chunkIdx++
-	}
 
-	// Now associate with names and pull the string sequence.
+		si = stringIndexer{
-	for chunkIdx, chunkIndices = range idxChunks {
+			group:   grpIdx,
-		grpNm = names[chunkIdx]
+			start:   matchIndices[startIdx],
-		/*
+			end:     matchIndices[endIdx-1],
-			Thankfully, it's actually a build error if a pattern specifies a named
+			matched: true,
-			capture group with an empty name.
+			nm:      names[grpIdx],
-			So we don't need to worry about accounting for that,
+			grpS:    "",
-			and can just skip over grpNm == ""
+			s:       &matchStr,
-			(which is either an *unnamed* capture group
+			ptrn:    r.Regexp,
-			OR the first element in `names`, which is always
+		}
-			the entire match).
+		grpIdx++
-			(We reslice out the latter.)
+
-		*/
+		if si.nm == "" {
-		if grpNm == "" {
+			// unnamed capture group
 			continue
 		}
 
-		if chunkIndices == nil || len(chunkIndices) == 0 {
+		// sets si.matched and si.grpS
-			// group did not match
+		si.idxSlice(&s)
+
+		if !si.matched {
 			if !inclNoMatch {
 				continue
 			}
-			if _, ok = tmpMap[grpNm]; !ok {
+			if _, ok = tmpMap[si.nm]; !ok {
 				if !inclNoMatchStrict {
-					tmpMap[grpNm] = nil
+					tmpMap[si.nm] = nil
 				} else {
-					tmpMap[grpNm] = []string{""}
+					tmpMap[si.nm] = []string{""}
 				}
 			} else {
 				if inclNoMatchStrict {
-					tmpMap[grpNm] = append(tmpMap[grpNm], "")
+					tmpMap[si.nm] = append(tmpMap[si.nm], "")
 				}
 			}
 			continue
 		}
 
-		switch len(chunkIndices) {
+		if _, ok = tmpMap[si.nm]; !ok {
-		case 1:
+			tmpMap[si.nm] = make([]string, 0)
-			// Single character
-			matchStr = string(s[chunkIndices[0]])
-		case 2:
-			// Multiple characters
-			matchStr = s[chunkIndices[0]:chunkIndices[1]]
 		}
-
+		tmpMap[si.nm] = append(tmpMap[si.nm], si.grpS)
-		if _, ok = tmpMap[grpNm]; !ok {
-			tmpMap[grpNm] = make([]string, 0)
-		}
-		tmpMap[grpNm] = append(tmpMap[grpNm], matchStr)
 	}
 
 	// This *technically* should be completely handled above.
 	if inclNoMatch {
 		for _, grpNm = range names {
+			if grpNm == "" {
+				continue
+			}
+			if _, ok = tmpMap[grpNm]; !ok {
+				tmpMap[grpNm] = nil
+			}
+		}
+	}
+
+	if len(tmpMap) > 0 {
+		matches = tmpMap
+	}
+
+	return
+}
+
+/*
+MapStringAll behaves exactly like [ReMap.MapString] but will "squash"/consolidate *all* found matches, not just the first occurrence,
+into the group name.
+
+You likely want to use this instead of [ReMap.MapString] for multiline patterns.
+*/
+func (r *ReMap) MapStringAll(s string, inclNoMatch, inclNoMatchStrict, mustMatch bool) (matches map[string][]string) {
+
+	var ok bool
+	var endIdx int
+	var startIdx int
+	var grpIdx int
+	var grpNm string
+	var names []string
+	var matchStr string
+	var si stringIndexer
+	var matchIndices []int
+	var allMatchIndices [][]int
+	var tmpMap map[string][]string = make(map[string][]string)
+
+	if s == "" {
+		return
+	}
+
+	names = r.Regexp.SubexpNames()[:]
+	allMatchIndices = r.Regexp.FindAllStringSubmatchIndex(s, -1)
+
+	if allMatchIndices == nil {
+		// s does not match pattern at all.
+		if !mustMatch {
+			matches = make(map[string][]string)
+		}
+		return
+	}
+
+	if names == nil || len(names) == 0 || len(names) == 1 {
+		/*
+			No named capture groups;
+			technically only the last condition would be the case,
+			as (regexp.Regexp).SubexpNames() will ALWAYS at the LEAST
+			return a `[]string{""}`.
+		*/
+		if inclNoMatch {
+			matches = make(map[string][]string)
+		}
+		return
+	}
+	names = names[1:]
+
+	if len(allMatchIndices) == 0 {
+		// No matches (and thus submatches) whatsoever.
+		// I think this is actually covered by the `if allMatchIndices == nil { ... }` above,
+		// but this is still here for safety and efficiency - early return on no matches to iterate.
+		matches = make(map[string][]string)
+		if inclNoMatch {
+			for _, grpNm = range names {
+				if grpNm == "" {
+					continue
+				}
+				matches[grpNm] = nil
+			}
+		}
+		return
+	}
+	// Do *NOT* trim/reslice allMatchIndices!
+	// The reslicing is done below, *inside* each matchIndices iteration!
+
+	tmpMap = make(map[string][]string)
+
+	// From here, it behaves (sort of) like ReMap.MapString.
+
+	// Build the strictly-paired chunk indexes and populate them.
+	// We are iterating over *match sets*; matchIndices here should be analgous
+	// to matchIndices in ReMap.MapString.
+	for _, matchIndices = range allMatchIndices {
+
+		if matchIndices == nil {
+			// I *think* the exception with the *All* variant here
+			// is the *entire* return (allMatchIndices) is nil if there
+			// aren't any matches; I can't imagine there'd be any feasible
+			// way it'd insert a nil *element* for an index mapping group.
+			// So just continuing here should be fine;
+			// this continue SHOULD be unreachable.
+			continue
+		}
+
+		// Reslice *here*, on the particular match index group.
+		// Grap the matchStr first; it's not currently *used* by anything but may in the future.
+		matchStr, ok = strIdxSlicer(
+			s,
+			*(*[2]int)(matchIndices[0:2]),
+		)
+		if len(matchIndices) == 0 || len(matchIndices) == 1 {
+			// No *sub*matches (capture groups) in this match, but it still matched the pattern.
+			if inclNoMatch {
+				for _, grpNm = range names {
+					if grpNm == "" {
+						continue
+					}
+					// We don't immediately return, though; we just stage out group names just in case.
+					// That's why we use tmpMap and not matches.
+					if _, ok = tmpMap[grpNm]; !ok {
+						tmpMap[grpNm] = nil
+					}
+				}
+			}
+			continue
+		}
+		matchIndices = matchIndices[2:]
+
+		// Reset from previous loop
+		endIdx = 0
+		grpIdx = 0
+
+		for startIdx = 0; endIdx < len(matchIndices); startIdx += 2 {
+			endIdx = startIdx + 2
+			if endIdx > len(matchIndices) {
+				endIdx = len(matchIndices)
+			}
+
+			if grpIdx >= len(names) {
+				break
+			}
+
+			si = stringIndexer{
+				group:   grpIdx,
+				start:   matchIndices[startIdx],
+				end:     matchIndices[endIdx-1],
+				matched: true,
+				nm:      names[grpIdx],
+				grpS:    "",
+				ptrn:    r.Regexp,
+			}
+			grpIdx++
+			// We do not include the entire match string here;
+			// we don't need it for this. Waste of memory.
+			_ = matchStr
+			/*
+				si.s = new(string)
+				*si.s = matchStr
+			*/
+
+			if si.nm == "" {
+				// unnamed capture group
+				continue
+			}
+
+			// sets si.matched and si.grpS
+			si.idxSlice(&s)
+
+			if !si.matched {
+				if !inclNoMatch {
+					continue
+				}
+				if _, ok = tmpMap[si.nm]; !ok {
+					if !inclNoMatchStrict {
+						tmpMap[si.nm] = nil
+					} else {
+						tmpMap[si.nm] = []string{""}
+					}
+				} else {
+					if inclNoMatchStrict {
+						tmpMap[si.nm] = append(tmpMap[si.nm], "")
+					}
+				}
+				continue
+			}
+
+			if _, ok = tmpMap[si.nm]; !ok {
+				tmpMap[si.nm] = make([]string, 0)
+			}
+			tmpMap[si.nm] = append(tmpMap[si.nm], si.grpS)
+		}
+	}
+
+	if inclNoMatch {
+		for _, grpNm = range names {
+			if grpNm == "" {
+				continue
+			}
 			if _, ok = tmpMap[grpNm]; !ok {
 				tmpMap[grpNm] = nil
 			}

remap/funcs_remap_test.go

@@ -1,9 +1,9 @@
 package remap
 
 import (
-	`fmt`
+	"fmt"
-	`reflect`
+	"reflect"
-	`regexp`
+	"regexp"
 	"testing"
 )
 
@@ -12,6 +12,7 @@ type (
 		Nm                     string
 		S                      string
 		M                      *ReMap
+		All                    bool
 		Expected               map[string][][]byte
 		ExpectedStr            map[string][]string
 		ParamInclNoMatch       bool
@@ -25,12 +26,14 @@ func TestRemap(t *testing.T) {
 	var matches map[string][][]byte
 
 	for midx, m := range []testMatcher{
+		// 1
 		testMatcher{
 			Nm:       "No matches",
 			S:        "this is a test",
 			M:        &ReMap{regexp.MustCompile(``)},
 			Expected: nil,
 		},
+		// 2
 		testMatcher{
 			Nm: "Single mid match",
 			S:  "This contains a single match in the middle of a string",
@@ -39,6 +42,7 @@ func TestRemap(t *testing.T) {
 				"g1": [][]byte{[]byte("match")},
 			},
 		},
+		// 3
 		testMatcher{
 			Nm: "multi mid match",
 			S:  "This contains a single match and another match in the middle of a string",
@@ -50,6 +54,7 @@ func TestRemap(t *testing.T) {
 				},
 			},
 		},
+		// 4
 		testMatcher{
 			Nm: "line match",
 			S:  "This\ncontains a\nsingle\nmatch\non a dedicated line",
@@ -60,10 +65,12 @@ func TestRemap(t *testing.T) {
 				},
 			},
 		},
+		// 5
 		testMatcher{
-			Nm: "multiline match",
+			Nm:  "multiline match",
-			S:  "This\ncontains a\nsingle match and another\nmatch\nin the middle of a string",
+			S:   "This\ncontains a\nsingle match and another\nmatch\nin the middle of a string",
-			M:  &ReMap{regexp.MustCompile(`\s+(?P<g1>match) and another\s+(?P<g1>match)\s+`)},
+			M:   &ReMap{regexp.MustCompile(`\s+(?P<g1>match) and another\s+(?P<g1>match)\s+`)},
+			All: true,
 			Expected: map[string][][]byte{
 				"g1": [][]byte{
 					[]byte("match"),
@@ -71,8 +78,32 @@ func TestRemap(t *testing.T) {
 				},
 			},
 		},
+		// 6
+		// More closely mirrors something closer to real-life
+		testMatcher{
+			Nm: "mixed match",
+			S: "        # No longer log hits/reqs/resps to file.\n" +
+				"        #access_log /mnt/nginx_logs/vhost/tenant/site/access.log main;\n" +
+				"        #error_log /mnt/nginx_logs/vhost/tenant/site/error.log;\n" +
+				"        access_log off;\n" +
+				"        error_log /dev/null;\n\n" +
+				"        ssl_certificate /etc/nginx/tls/crt/tenant.pem;\n" +
+				"        ssl_certificate_key /etc/nginx/tls/key/tenant.pem;\n\n",
+			M:   &ReMap{regexp.MustCompile(`(?m)^\s*(?:error|access)_log\s+(?P<logpath>.+);\s*$`)},
+			All: true,
+			Expected: map[string][][]byte{
+				"logpath": [][]byte{
+					[]byte("off"),
+					[]byte("/dev/null"),
+				},
+			},
+		},
 	} {
-		matches = m.M.Map([]byte(m.S), false, false, false)
+		if m.All {
+			matches = m.M.MapAll([]byte(m.S), false, false, false)
+		} else {
+			matches = m.M.Map([]byte(m.S), false, false, false)
+		}
 		t.Logf(
 			"#%d:\n\tsrc:\t'%s'\n\tptrn:\t'%s'\n\tmatch:\t%s\n",
 			midx+1,
@@ -81,7 +112,7 @@ func TestRemap(t *testing.T) {
 			testBmapToStrMap(matches),
 		)
 		if !reflect.DeepEqual(matches, m.Expected) {
-			t.Fatalf("Case #%d (\"%s\"): '%#v' != '%#v'", midx+1, m.Nm, m.Expected, matches)
+			t.Fatalf("Case #%d (\"%s\"): expected '%#v' != received '%#v'", midx+1, m.Nm, m.Expected, matches)
 		}
 	}
 
@@ -165,7 +196,11 @@ func TestRemapParams(t *testing.T) {
 			ParamInclMustMatch:     true,
 		},
 	} {
-		matches = m.M.Map([]byte(m.S), m.ParamInclNoMatch, m.ParamInclNoMatchStrict, m.ParamInclMustMatch)
+		if m.All {
+			matches = m.M.MapAll([]byte(m.S), m.ParamInclNoMatch, m.ParamInclNoMatchStrict, m.ParamInclMustMatch)
+		} else {
+			matches = m.M.Map([]byte(m.S), m.ParamInclNoMatch, m.ParamInclNoMatchStrict, m.ParamInclMustMatch)
+		}
 		t.Logf(
 			"%d: %v/%v/%v: %#v\n",
 			midx+1, m.ParamInclNoMatch, m.ParamInclNoMatchStrict, m.ParamInclMustMatch, matches,
@@ -182,12 +217,14 @@ func TestRemapString(t *testing.T) {
 	var matches map[string][]string
 
 	for midx, m := range []testMatcher{
+		// 1
 		testMatcher{
 			Nm:          "No matches",
 			S:           "this is a test",
 			M:           &ReMap{regexp.MustCompile(``)},
 			ExpectedStr: nil,
 		},
+		// 2
 		testMatcher{
 			Nm: "Single mid match",
 			S:  "This contains a single match in the middle of a string",
@@ -196,6 +233,7 @@ func TestRemapString(t *testing.T) {
 				"g1": []string{"match"},
 			},
 		},
+		// 3
 		testMatcher{
 			Nm: "multi mid match",
 			S:  "This contains a single match and another match in the middle of a string",
@@ -207,6 +245,7 @@ func TestRemapString(t *testing.T) {
 				},
 			},
 		},
+		// 4
 		testMatcher{
 			Nm: "line match",
 			S:  "This\ncontains a\nsingle\nmatch\non a dedicated line",
@@ -217,10 +256,12 @@ func TestRemapString(t *testing.T) {
 				},
 			},
 		},
+		// 5
 		testMatcher{
-			Nm: "multiline match",
+			Nm:  "multiline match",
-			S:  "This\ncontains a\nsingle match and another\nmatch\nin the middle of a string",
+			S:   "This\ncontains a\nsingle match and another\nmatch\nin the middle of a string",
-			M:  &ReMap{regexp.MustCompile(`\s+(?P<g1>match) and another\s+(?P<g1>match)\s+`)},
+			M:   &ReMap{regexp.MustCompile(`\s+(?P<g1>match) and another\s+(?P<g1>match)\s+`)},
+			All: true,
 			ExpectedStr: map[string][]string{
 				"g1": []string{
 					"match",
@@ -228,8 +269,32 @@ func TestRemapString(t *testing.T) {
 				},
 			},
 		},
+		// 6
+		// More closely mirrors something closer to real-life
+		testMatcher{
+			Nm: "mixed match",
+			S: "        # No longer log hits/reqs/resps to file.\n" +
+				"        #access_log /mnt/nginx_logs/vhost/tenant/site/access.log main;\n" +
+				"        #error_log /mnt/nginx_logs/vhost/tenant/site/error.log;\n" +
+				"        access_log off;\n" +
+				"        error_log /dev/null;\n\n" +
+				"        ssl_certificate /etc/nginx/tls/crt/tenant.pem;\n" +
+				"        ssl_certificate_key /etc/nginx/tls/key/tenant.pem;\n\n",
+			M:   &ReMap{regexp.MustCompile(`(?m)^\s*(?:error|access)_log\s+(?P<logpath>.+);\s*$`)},
+			All: true,
+			ExpectedStr: map[string][]string{
+				"logpath": []string{
+					"off",
+					"/dev/null",
+				},
+			},
+		},
 	} {
-		matches = m.M.MapString(m.S, false, false, false)
+		if m.All {
+			matches = m.M.MapStringAll(m.S, false, false, false)
+		} else {
+			matches = m.M.MapString(m.S, false, false, false)
+		}
 		t.Logf(
 			"#%d:\n\tsrc:\t'%s'\n\tptrn:\t'%s'\n\tmatch:\t%s\n",
 			midx+1,

remap/funcs_stringindexer.go

@@ -0,0 +1,34 @@
+package remap
+
+// idx returns []int{s.start, s.end}.
+func (s *stringIndexer) idx() (i []int) {
+	return []int{s.start, s.end}
+}
+
+// idxStrict returns [2]int{s.start, s.end}.
+func (s *stringIndexer) idxStrict() (i [2]int) {
+	return [2]int{s.start, s.end}
+}
+
+/*
+idxSlice populates s.grpS using s.start and s.end.
+
+If str is nil, it will use s.s.
+If str is nil and s.s is nil, it will panic with [ErrNoStr].
+
+If the pattern does not match (s.start < 0 or s.end < 0),
+s.matched will be set to false (otherwise true).
+*/
+func (s *stringIndexer) idxSlice(str *string) {
+
+	if str == nil {
+		if s.s == nil {
+			panic(ErrNoStr)
+		}
+		str = s.s
+	}
+
+	s.grpS, s.matched = strIdxSlicer(*str, s.idxStrict())
+
+	return
+}

remap/types.go

@@ -24,4 +24,45 @@ type (
 		}
 
 	*/
+
+	stringIndexer struct {
+		// group is the capture group index for this match.
+		group int
+		// start is the string index (from the original string) where the matched group starts
+		start int
+		// end is the string index where the matched group ends
+		end int
+		/*
+			matched indicates if explicitly no match was found.
+			(This is normally indeterminate with string regex returns,
+			as e.g. `(?P<mygrp>\s*)`, `(?P<mygrp>(?:somestring)?)`, etc. all can be a *matched* "".)
+
+			If grpS == "" and matched == true, it DID match an empty string.
+			If grpS == "" and matched == false, it DID NOT MATCH the pattern.
+			If grpS != "", matched can be completely disregarded.
+		*/
+		matched bool
+		// nm is the match group name.
+		nm string
+		/*
+			grpS is the actual group-matched *substring*.
+
+			It will ALWAYS be either:
+
+				* the entirety of s
+				* a substring of s
+				* an empty string
+
+			it will never, and cannot be, a SUPERset of s.
+			it may not always be included/populated to save on memory.
+		*/
+		grpS string
+		/*
+			s is the *entire* MATCHED (sub)string.
+			It may not always be populated if not needed to save memory.
+		*/
+		s *string
+		// ptrn is the pattern applied to s.
+		ptrn *regexp.Regexp
+	}
 )

tplx/sprigx/_test.tpl

@@ -0,0 +1,101 @@
+################################################################################
+#                                   RUNTIME                                    #
+################################################################################
+
+{{- $rntm := sysRuntime }}
+
+Arch:	{{ sysArch }}
+CPUs:	{{ sysNumCpu }}
+OS:	{{ sysNumCpu }}
+
+RUNTIME: {{ $rntm }}
+{{ range $rntmk, $rntmv := $rntm }}
+	{{ $rntmk }}:
+		{{ $rntmv }}
+{{- end }}
+{{ dump $rntm }}
+
+
+################################################################################
+#                                    PATHS                                     #
+################################################################################
+
+###########
+# Generic #
+###########
+
+pathJoin "a" "b" "c"
+	{{ pathJoin "a" "b" "c" }}
+
+pathJoin "/" "a" "b" "c"
+	{{ pathJoin "/" "a" "b" "c" }}
+
+pathJoin "/a" "b" "c"
+	{{ pathJoin "/a" "b" "c" }}
+
+#
+
+pathPipeJoin "b" "c" "d" "a"
+	{{ pathPipeJoin "b" "c" "d" "a" }}
+
+"a" | pathPipeJoin "b" "c" "d"
+	{{ "a" | pathPipeJoin "b" "c" "d"}}
+#
+
+$base := "/"
+$myPsjSlice := "a,b,c" | splitList ","
+pathSliceJoin $myPsjSlice
+	{{- $base := "/"  }}
+	{{- $myPsjSlice := "a,b,c" | splitList "," }}
+	{{ pathSliceJoin $myPsjSlice }}
+
+#
+
+$base | pathSlicePipeJoin $myPsjSlice
+	{{ $base | pathSlicePipeJoin $myPsjSlice }}
+
+#
+
+pathSubJoin $base "a" "b" "c"
+	{{ pathSubJoin $base "a" "b" "c" }}
+
+
+######################
+# OS/System/Platform #
+######################
+
+osPathJoin "a" "b" "c"
+	{{ osPathJoin "a" "b" "c" }}
+
+osPathJoin "/" "a" "b" "c"
+	{{ osPathJoin "a" "b" "c" }}
+
+osPathJoin "/a" "b" "c"
+	{{ osPathJoin "a" "b" "c" }}
+
+#
+
+osPathPipeJoin "b" "c" "d" "a"
+	{{ osPathPipeJoin "b" "c" "d" "a" }}
+
+"a" | osPathPipeJoin "b" "c" "d"
+	{{ "a" | osPathPipeJoin "b" "c" "d" }}
+
+#
+
+$osBase := "/"
+$myOsPsjSlice := "a,b,c" | splitList ","
+osPathSliceJoin $myOsPsjSlice
+	{{- $osBase := "/" }}
+	{{- $myOsPsjSlice := "a,b,c" | splitList "," }}
+	{{ osPathSliceJoin $myOsPsjSlice }}
+
+#
+
+$osBase | osPathSlicePipeJoin $myOsPsjSlice
+	{{ $osBase | osPathSlicePipeJoin $myOsPsjSlice }}
+
+#
+
+osPathSubJoin $osBase "a" "b" "c"
+	{{ osPathSubJoin $osBase "a" "b" "c" }}

tplx/sprigx/consts.go

@@ -0,0 +1,153 @@
+package sprigx
+
+import (
+	`os`
+	`os/user`
+	`path`
+	`path/filepath`
+	`runtime`
+	`time`
+
+	`github.com/davecgh/go-spew/spew`
+	`github.com/shirou/gopsutil/v4/cpu`
+	`github.com/shirou/gopsutil/v4/disk`
+	`github.com/shirou/gopsutil/v4/host`
+	`github.com/shirou/gopsutil/v4/load`
+	`github.com/shirou/gopsutil/v4/mem`
+	psnet `github.com/shirou/gopsutil/v4/net`
+	`github.com/shirou/gopsutil/v4/process`
+	`github.com/shirou/gopsutil/v4/sensors`
+	`r00t2.io/goutils/timex`
+	`r00t2.io/sysutils`
+)
+
+var (
+	// genericMap holds functions usable/intended for use in either an [html/template.FuncMap] or [text/template.FuncMap].
+	genericMap map[string]any = map[string]any{
+		// Debugging
+		"dump": spew.Sdump,
+		/*
+			"Meta"/Template-Helpers
+		*/
+		"metaIsNil": metaIsNil,
+		/*
+			Numbers/Math
+		*/
+		"numFloat32Str": numFloat32Str,
+		"numFloat64":    numFloat64,
+		"numFloat64Str": numFloat64Str,
+		"numFloatStr":   numFloatStr,
+		/*
+			OS
+		*/
+		"osFQDN":        osFQDN,
+		"osGroupById":   osGroupById,
+		"osGroupByName": user.LookupGroup,
+		"osHost":        osHost,
+		"osHostname":    os.Hostname,
+		"osIdState":     sysutils.GetIDState,
+		"osUser":        user.Current,
+		"osUserById":    osUserById,
+		"osUserByName":  user.Lookup,
+		/*
+			Paths
+		*/
+		// Paths: Generic
+		"pathJoin":          path.Join,
+		"pathPipeJoin":      pathPipeJoin,
+		"pathSliceJoin":     pathSliceJoin,
+		"pathSlicePipeJoin": pathSlicePipeJoin,
+		"pathSubJoin":       pathSubJoin,
+		// Paths: OS/Platform
+		"osPathJoin":          filepath.Join,
+		"osPathPipeJoin":      osPathPipeJoin,
+		"osPathSep":           osPathSep,
+		"osPathSliceJoin":     osPathSliceJoin,
+		"osPathSlicePipeJoin": osPathSlicePipeJoin,
+		"osPathSubJoin":       osPathSubJoin,
+		/*
+			PSUtil
+			(https://pkg.go.dev/github.com/shirou/gopsutil/v4)
+		*/
+		// .../cpu
+		"psCpuCnts":  cpu.Counts,
+		"psCpuInfo":  cpu.Info,
+		"psCpuPct":   cpu.Percent,
+		"psCpuTimes": cpu.Times,
+		// .../disk
+		"psDiskIoCnts": disk.IOCounters,
+		"psDiskLabel":  disk.Label,
+		"psDiskParts":  disk.Partitions,
+		"psDiskSerial": disk.SerialNumber,
+		"psDiskUsage":  disk.Usage,
+		// .../host
+		"psHostBoot":     host.BootTime,
+		"psHostId":       host.HostID,
+		"psHostInfo":     host.Info,
+		"psHostKernArch": host.KernelArch,
+		"psHostKernVer":  host.KernelVersion,
+		"psHostPlatInfo": psHostPlatInfo,
+		"psHostUptime":   host.Uptime,
+		"psHostUsers":    host.Users,
+		"psHostVirt":     psHostVirt,
+		// .../load
+		"psLoadAvg":  load.Avg,
+		"psLoadMisc": load.Misc,
+		// .../mem
+		"psMemSwap":     mem.SwapMemory,
+		"psMemSwapDevs": mem.SwapDevices,
+		"psMemVMem":     mem.VirtualMemory,
+		// .../net
+		"psNetConns":       psnet.Connections,
+		"psNetConnsMax":    psnet.ConnectionsMax,
+		"psNetConnsPid":    psnet.ConnectionsPid,
+		"psNetConnsPidMax": psnet.ConnectionsPidMax,
+		"psNetCTStats":     psnet.ConntrackStats,
+		"psNetCTStatList":  psnet.NewConntrackStatList,
+		"psNetFilterCnts":  psnet.FilterCounters,
+		"psNetIoCnts":      psnet.IOCounters,
+		"psNetIoCntsFile":  psnet.IOCountersByFile,
+		"psNetIfaces":      psnet.Interfaces,
+		"psNetPids":        psnet.Pids,
+		"psNetProtoCnt":    psnet.ProtoCounters,
+		// .../process
+		"psProcs":         process.Processes,
+		"psProcNew":       process.NewProcess,
+		"psProcPids":      process.Pids,
+		"psProcPidExists": process.PidExists,
+		// .../sensors
+		"psSensorTemps": sensors.SensorsTemperatures,
+		/*
+			Strings
+		*/
+		"extIndent": extIndent, // PR in: https://github.com/Masterminds/sprig/pull/468
+		/*
+			System/Platform
+		*/
+		"sysArch":    sysArch,
+		"sysNumCpu":  runtime.NumCPU,
+		"sysOsName":  sysOsNm,
+		"sysRuntime": sysRuntime,
+		/*
+			Time/Dates/Timestamps
+		*/
+		"tmDate":          time.Date,
+		"tmFmt":           tmFmt,
+		"tmFloatMicro":    timex.F64Microseconds,
+		"tmFloatMilli":    timex.F64Milliseconds,
+		"tmFloatNano":     timex.F64Nanoseconds,
+		"tmFloat":         timex.F64Seconds,
+		"tmNow":           time.Now,
+		"tmParseDur8n":    time.ParseDuration,
+		"tmParseMonth":    tmParseMonth,
+		"tmParseMonthInt": tmParseMonthInt,
+		"tmParseMonthStr": tmParseMonthStr,
+		"tmParseTime":     time.Parse,
+	}
+
+	// htmlMap holds functions usable/intended for use in only an [html/template.FuncMap].
+	htmlMap map[string]any = map[string]any{}
+
+	// txtMap holds functions usable/intended for use in only a [text/template.FuncMap].
+	txtMap map[string]any = map[string]any{}
+)

tplx/sprigx/consts_darwin.go

@@ -0,0 +1,9 @@
+//go:build darwin
+
+package sprigx
+
+var (
+	osGenericMap map[string]any = map[string]any{}
+	osHtmlMap    map[string]any = map[string]any{}
+	osTxtMap     map[string]any = map[string]any{}
+)

tplx/sprigx/consts_linux.go

@@ -0,0 +1,25 @@
+//go:build linux
+
+package sprigx
+
+import (
+	`github.com/shirou/gopsutil/v4/mem`
+	psnet `github.com/shirou/gopsutil/v4/net`
+)
+
+var (
+	osGenericMap map[string]any = map[string]any{
+		/*
+			PSUtil
+			(https://pkg.go.dev/github.com/shirou/gopsutil/v4)
+		*/
+		// .../mem
+		"psMemExVMem": mem.NewExLinux().VirtualMemory,
+		// .../net
+		"psNetRev": psnet.Reverse,
+		// .../sensors
+		"psSensorExTemp": psSensorExTemp,
+	}
+	osHtmlMap map[string]any = map[string]any{}
+	osTxtMap  map[string]any = map[string]any{}
+)

tplx/sprigx/consts_unknown.go

@@ -0,0 +1,9 @@
+//go:build !(linux || windows || darwin)
+
+package sprigx
+
+var (
+	osGenericMap map[string]any = map[string]any{}
+	osHtmlMap    map[string]any = map[string]any{}
+	osTxtMap     map[string]any = map[string]any{}
+)

tplx/sprigx/consts_windows.go

@@ -0,0 +1,24 @@
+//go:build windows
+
+package sprigx
+
+import (
+	`github.com/shirou/gopsutil/v4/mem`
+	`github.com/shirou/gopsutil/v4/winservices`
+)
+
+var (
+	osGenericMap map[string]any = map[string]any{
+		/*
+			PSUtil
+			(https://pkg.go.dev/github.com/shirou/gopsutil/v4)
+		*/
+		// .../mem
+		"psMemExVMem": mem.NewExWindows().VirtualMemory,
+		// .../winservices
+		"psWinsvcList": winservices.ListServices,
+		"psWinsvcNew":  winservices.NewService,
+	}
+	osHtmlMap map[string]any = map[string]any{}
+	osTxtMap  map[string]any = map[string]any{}
+)

tplx/sprigx/doc.go

@@ -0,0 +1,16 @@
+/*
+Package sprigx aims to provide additional functions that the author believes are missing from [sprig] ([Go docs]).
+
+It's a decent enough "basics" library, but I frequently find it falls short once you start needing domain-specific data.
+
+These may get merged into sprig, they may not. It all depends on how responsive they are to PRs.
+Given that they only update it every 6 months or so, however...
+
+See the [full documentation] on the [repo].
+
+[sprig]: https://masterminds.github.io/sprig/
+[Go docs]: https://pkg.go.dev/github.com/Masterminds/sprig/v3
+[full documentation]: https://git.r00t2.io/r00t2/go_goutils/src/branch/master/tplx/sprigx/README.adoc
+[repo]: https://git.r00t2.io/r00t2/go_goutils
+*/
+package sprigx

tplx/sprigx/errs.go

@@ -0,0 +1,11 @@
+package sprigx
+
+import (
+	`errors`
+)
+
+var (
+	ErrBadMonth error = errors.New("could not determine/parse month")
+	ErrBadType  error = errors.New("an invalid/unknown type was passed")
+	ErrNilVal   error = errors.New("a nil value was passed")
+)

tplx/sprigx/funcs.go

@@ -0,0 +1,356 @@
+package sprigx
+
+import (
+	`errors`
+	htpl "html/template"
+	`math`
+	`reflect`
+	`strconv`
+	ttpl "text/template"
+
+	`github.com/Masterminds/sprig/v3`
+)
+
+/*
+Many of these functions are modeled after sprig's.
+*/
+
+/*
+CombinedFuncMap returns a generic function map (like [FuncMap]) combined with
+[github.com/Masterminds/sprig/v3.GenericFuncMap].
+
+If preferSprigx is true, SprigX function names will override Sprig
+functions with the same name.
+If false, Sprig functions will override conflicting SprigX functions
+with the same name.
+
+You probably want [CombinedHtmlFuncMap] or [CombinedTxtFuncMap] instead,
+as they wrap this with the appropriate type.
+*/
+func CombinedFuncMap(preferSprigX bool) (fmap map[string]any) {
+
+	var fn any
+	var fnNm string
+	var sprigMap map[string]interface{} = sprig.GenericFuncMap()
+	var sprigxMap map[string]any = FuncMap()
+
+	if preferSprigX {
+		fmap = sprigMap
+		for fnNm, fn = range sprigxMap {
+			fmap[fnNm] = fn
+		}
+	} else {
+		fmap = sprigxMap
+		for fnNm, fn = range sprigMap {
+			fmap[fnNm] = fn
+		}
+	}
+
+	return
+}
+
+/*
+CombinedHtmlFuncMap returns an [htpl.FuncMap] (like [HtmlFuncMap]) combined with
+[github.com/Masterminds/sprig/v3.HtmlFuncMap].
+
+If preferSprigx is true, SprigX function names will override Sprig
+functions with the same name.
+If false, Sprig functions will override conflicting SprigX functions
+with the same name.
+*/
+func CombinedHtmlFuncMap(preferSprigX bool) (fmap htpl.FuncMap) {
+
+	var fn any
+	var fnNm string
+	var sprigMap htpl.FuncMap = sprig.HtmlFuncMap()
+	var sprigxMap htpl.FuncMap = HtmlFuncMap()
+
+	if preferSprigX {
+		fmap = sprigMap
+		for fnNm, fn = range sprigxMap {
+			fmap[fnNm] = fn
+		}
+	} else {
+		fmap = sprigxMap
+		for fnNm, fn = range sprigMap {
+			fmap[fnNm] = fn
+		}
+	}
+
+	return
+}
+
+/*
+CombinedTxtFuncMap returns a [ttpl.FuncMap] (like [TxtFuncMap]) combined with
+[github.com/Masterminds/sprig/v3.TxtFuncMap].
+
+If preferSprigx is true, SprigX function names will override Sprig
+functions with the same name.
+If false, Sprig functions will override conflicting SprigX functions
+with the same name.
+*/
+func CombinedTxtFuncMap(preferSprigX bool) (fmap ttpl.FuncMap) {
+
+	var fn any
+	var fnNm string
+	var sprigMap ttpl.FuncMap = sprig.TxtFuncMap()
+	var sprigxMap ttpl.FuncMap = TxtFuncMap()
+
+	if preferSprigX {
+		fmap = sprigMap
+		for fnNm, fn = range sprigxMap {
+			fmap[fnNm] = fn
+		}
+	} else {
+		fmap = sprigxMap
+		for fnNm, fn = range sprigMap {
+			fmap[fnNm] = fn
+		}
+	}
+
+	return
+}
+
+/*
+FuncMap returns a generic function map.
+
+You probably want [HtmlFuncMap] or [TxtFuncMap] instead,
+as they wrap this with the appropriate type.
+*/
+func FuncMap() (fmap map[string]any) {
+
+	var fn string
+	var f any
+
+	fmap = make(map[string]any, len(genericMap))
+
+	for fn, f = range genericMap {
+		fmap[fn] = f
+	}
+	if osGenericMap != nil && len(osGenericMap) > 0 {
+		for fn, f = range osGenericMap {
+			fmap[fn] = f
+		}
+	}
+
+	return
+}
+
+// HtmlFuncMap returns an [html/template.FuncMap].
+func HtmlFuncMap() (fmap htpl.FuncMap) {
+
+	var fn string
+	var f any
+
+	fmap = htpl.FuncMap(FuncMap())
+
+	if htmlMap != nil && len(htmlMap) > 0 {
+		for fn, f = range htmlMap {
+			fmap[fn] = f
+		}
+	}
+
+	if osHtmlMap != nil && len(osHtmlMap) > 0 {
+		for fn, f = range osHtmlMap {
+			fmap[fn] = f
+		}
+	}
+
+	return
+}
+
+// Nop explicitly performs a NO-OP and returns an empty string, allowing one to override "unsafe" functions.
+func Nop(obj ...any) (s string) {
+	return
+}
+
+// TxtFuncMap returns a [text/template.FuncMap].
+func TxtFuncMap() (fmap ttpl.FuncMap) {
+
+	var fn string
+	var f any
+
+	fmap = ttpl.FuncMap(FuncMap())
+
+	if txtMap != nil && len(txtMap) > 0 {
+		for fn, f = range txtMap {
+			fmap[fn] = f
+		}
+	}
+
+	if osTxtMap != nil && len(osTxtMap) > 0 {
+		for fn, f = range osTxtMap {
+			fmap[fn] = f
+		}
+	}
+
+	return
+}
+
+/*
+toFloat64 uses reflection to resolve any string or numeric type (even custom types) to a float64.
+
+It wraps toString for string types but will fall back to checking numeric types.
+
+If err != nil, then NaN (if true) indicates that:
+
+	* val is a string (or pointer to a string), but
+	* is not a valid numeric string
+
+(you can do this from the caller as well by calling `errors.Is(err, strconv.ErrSyntax)`).
+err will always be non-nil if NaN is true.
+
+err will be ErrNilVal if val is nil.
+*/
+func toFloat64(val any) (f float64, NaN bool, err error) {
+
+	var s string
+	var k reflect.Kind
+	var rv reflect.Value
+
+	// toString will return ErrNilVal if nil.
+	if s, err = toString(val); err != nil {
+		if errors.Is(err, ErrBadType) {
+			// This is OK, it's (hopefully) a number type.
+			err = nil
+		} else {
+			// *probably* ErrNilVal.
+			return
+		}
+	} else {
+		// We can go ahead and parse this directly since it's already deref'd if a ptr.
+		if f, err = strconv.ParseFloat(s, 64); err != nil {
+			NaN = errors.Is(err, strconv.ErrSyntax)
+		}
+		// We can return regardless here; it's up to the caller to check NaN/err.
+		// If they're false/nil, f is parsed already!
+		return
+	}
+
+	rv = reflect.ValueOf(val)
+	k = rv.Kind()
+
+	if k == reflect.Ptr {
+		if rv.IsNil() {
+			// *technically* this should be handled above, but best be safe.
+			err = ErrNilVal
+			return
+		}
+		rv = rv.Elem()
+		k = rv.Kind()
+	}
+
+	switch k {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		f = float64(rv.Int())
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+		f = float64(rv.Uint())
+	case reflect.Float32, reflect.Float64:
+		f = rv.Float()
+	default:
+		// No need to check for string types since we do that near the beginning.
+		err = ErrBadType
+		return
+	}
+
+	return
+}
+
+/*
+toInt wraps toFloat64, rounds it to the nearest integer,
+and converts to an int.
+
+NaN, err have the same meaning as in toFloat64.
+
+This function will panic if float64(val)'s f return exceeds
+math.MaxInt on your platform.
+*/
+func toInt(val any) (i int, NaN bool, err error) {
+
+	var f float64
+
+	if f, NaN, err = toFloat64(val); err != nil {
+		return
+	}
+
+	i = int(math.Round(f))
+
+	return
+}
+
+/*
+toPosFloat64 wraps toFloat64 and ensures that it is a positive float64.
+
+NaN, err have the same meaning as in toFloat64.
+*/
+func toPosFloat64(val any) (f float64, NaN bool, err error) {
+
+	if f, NaN, err = toFloat64(val); err != nil {
+		return
+	}
+
+	f = math.Abs(f)
+
+	return
+}
+
+/*
+toPosInt wraps toPosFloat64, rounds it to the nearest integer,
+and converts to an int.
+
+NaN, err have the same meaning as in toPosFloat64 (and thus toFloat64).
+
+This function will panic if float64(val)'s f return exceeds
+math.MaxInt on your platform.
+*/
+func toPosInt(val any) (i int, NaN bool, err error) {
+
+	var f float64
+
+	if f, NaN, err = toPosFloat64(val); err != nil {
+		return
+	}
+
+	i = int(math.Round(f))
+
+	return
+}
+
+/*
+toString uses reflection to resolve any string value (even custom types and ptrs)
+to a concrete string.
+
+err will be ErrBadType if val is not a string type/string-derived type.
+err will be ErrNilVal if val is nil.
+*/
+func toString(val any) (s string, err error) {
+
+	var rv reflect.Value
+	var k reflect.Kind
+
+	if val == nil {
+		err = ErrNilVal
+		return
+	}
+
+	rv = reflect.ValueOf(val)
+	k = rv.Kind()
+
+	if k == reflect.Ptr {
+		if rv.IsNil() {
+			// *technically* this should be handled above, but best be safe.
+			err = ErrNilVal
+			return
+		}
+		rv = rv.Elem()
+		k = rv.Kind()
+	}
+
+	if k == reflect.String {
+		s = rv.String()
+	} else {
+		err = ErrBadType
+	}
+
+	return
+}

tplx/sprigx/funcs_test.go

@@ -0,0 +1,33 @@
+package sprigx
+
+import (
+	`bytes`
+	_ "embed"
+	"testing"
+	`text/template`
+
+	"github.com/Masterminds/sprig/v3"
+)
+
+var (
+	//go:embed "_test.tpl"
+	testTplBytes []byte
+	testTpl      *template.Template = template.Must(
+		template.
+			New("").
+			Funcs(sprig.TxtFuncMap()).
+			Funcs(TxtFuncMap()).
+			Parse(string(testTplBytes)),
+	)
+)
+
+func TestFuncs(t *testing.T) {
+
+	var err error
+	var buf *bytes.Buffer = new(bytes.Buffer)
+
+	if err = testTpl.Execute(buf, nil); err != nil {
+		t.Fatal(err)
+	}
+	t.Log(buf.String())
+}

tplx/sprigx/funcs_tpl_meta.go

@@ -0,0 +1,9 @@
+package sprigx
+
+// metaIsNil returns true if obj is explicitly nil.
+func metaIsNil(obj any) (isNil bool) {
+
+	isNil = obj == nil
+
+	return
+}

tplx/sprigx/funcs_tpl_nums.go

@@ -0,0 +1,51 @@
+package sprigx
+
+import (
+	`math/big`
+)
+
+// numFloat64 returns any string representation of a numeric value or any type of numeric value to a float64.
+func numFloat64(val any) (f float64, err error) {
+
+	if f, _, err = toFloat64(val); err != nil {
+		return
+	}
+
+	return
+}
+
+/*
+numFloatStr wraps numFloat32Str and numFloat64Str.
+
+val can be a string representation of any numeric value or any type of numeric value.
+*/
+func numFloatStr(val any) (s string, err error) {
+
+	var f float64
+
+	if f, _, err = toFloat64(val); err != nil {
+		return
+	}
+	s = numFloat64Str(f)
+
+	return
+}
+
+// numFloat32Str returns float32 f as a complete string representation with no truncation (or right-padding).
+func numFloat32Str(f float32) (s string) {
+
+	s = numFloat64Str(float64(f))
+
+	return
+}
+
+// numFloat64Str returns float64 f as a complete string representation with no truncation (or right-padding).
+func numFloat64Str(f float64) (s string) {
+
+	var bf *big.Float
+
+	bf = big.NewFloat(f)
+	s = bf.Text('f', -1)
+
+	return
+}

tplx/sprigx/funcs_tpl_os.go

@@ -0,0 +1,99 @@
+package sprigx
+
+import (
+	`os`
+	`os/user`
+	`strconv`
+	`strings`
+)
+
+/*
+osGroupById returns os/user.LookupGroupId.
+
+Can accept either a string (`"1000"`) or any
+numeric type (`1000`, `-1000`, `1000.0`, `MyCustomType(1000)`, etc.)
+*/
+func osGroupById(gid any) (g *user.Group, err error) {
+
+	var i int
+	var NaN bool
+	var gidStr string
+
+	if i, NaN, err = toPosInt(gid); err != nil {
+		if NaN {
+			err = nil
+			if gidStr, err = toString(gid); err != nil {
+				return
+			}
+		} else {
+			return
+		}
+	} else {
+		gidStr = strconv.Itoa(i)
+	}
+
+	g, err = user.LookupGroupId(gidStr)
+
+	return
+}
+
+/*
+osFQDN (tries to) return the FQDN of this host.
+
+Currently it just calls os.Hostname() but may be extended to "try harder" in the future.
+*/
+func osFQDN() (fqdn string, err error) {
+
+	fqdn, err = os.Hostname()
+
+	return
+}
+
+/*
+osHost returns the system's "host shortname".
+
+Currently it just calls os.Hostname() and takes the first
+"host label" (as RFCs refer to it), but it may be extended
+in the future.
+*/
+func osHost() (hostNm string, err error) {
+
+	hostNm, err = os.Hostname()
+
+	if hostNm == "" {
+		return
+	}
+	hostNm = strings.Split(hostNm, ".")[0]
+
+	return
+}
+
+/*
+osUserById returns an os/user.LookupId.
+
+Can accept either a string (`"1000"`) or any
+numeric type (`1000`, `-1000`, `1000.0`, `MyCustomType(1000)`, etc.)
+*/
+func osUserById(uid any) (u *user.User, err error) {
+
+	var i int
+	var NaN bool
+	var uidStr string
+
+	if i, NaN, err = toPosInt(uid); err != nil {
+		if NaN {
+			err = nil
+			if uidStr, err = toString(uid); err != nil {
+				return
+			}
+		} else {
+			return
+		}
+	} else {
+		uidStr = strconv.Itoa(i)
+	}
+
+	u, err = user.LookupId(uidStr)
+
+	return
+}

tplx/sprigx/funcs_tpl_paths.go

@@ -0,0 +1,155 @@
+package sprigx
+
+import (
+	`os`
+	`path`
+	`path/filepath`
+)
+
+/*
+	//
+	// GENERIC
+	//
+*/
+
+/*
+pathPipeJoin wraps path.Join with the root element at the *end* instead of the beginning.
+
+	{{ pathPipeJoin "b" "c" "a" }}
+
+is equivalent to
+
+	path.Join("a", "b", "c")
+
+This order variation is better suited for pipelines that pass the root path.
+*/
+func pathPipeJoin(elems ...string) (out string) {
+
+	var rootIdx int
+
+	if elems == nil || len(elems) == 0 {
+		return
+	}
+
+	rootIdx = len(elems) - 1
+	out = elems[rootIdx]
+
+	if len(elems) == 1 {
+		return
+	}
+
+	out = pathSubJoin(out, elems[:rootIdx]...)
+
+	return
+}
+
+// pathSliceJoin joins a slice of path segments.
+func pathSliceJoin(sl []string) (out string) {
+
+	out = path.Join(sl...)
+
+	return
+}
+
+/*
+pathSlicePipeJoin behaves like a mix of pathPipeJoin (in that it accepts the root element last)
+and pathSliceJoin (in that it accepts a slice of subpath segments).
+
+It's essentially like pathSubJoin in reverse, and with an explicit slice.
+*/
+func pathSlicePipeJoin(sl []string, root string) (out string) {
+
+	out = pathSubJoin(root, sl...)
+
+	return
+}
+
+/*
+pathSubJoin is like path.Join except it takes an explicit root
+and additional slice of subpaths to sequentially join to it.
+*/
+func pathSubJoin(root string, elems ...string) (out string) {
+
+	if elems == nil || len(elems) == 0 {
+		out = root
+		return
+	}
+
+	out = path.Join(
+		root,
+		path.Join(
+			elems...,
+		),
+	)
+
+	return
+}
+
+/*
+	//
+	// OS/PLATFORM
+	//
+*/
+
+/*
+osPathPipeJoin is like pathPipeJoin but uses the rendering OS' path separator (os.PathSeparator).
+*/
+func osPathPipeJoin(elems ...string) (out string) {
+
+	var rootIdx int
+
+	if elems == nil || len(elems) == 0 {
+		return
+	}
+
+	rootIdx = len(elems) - 1
+	out = elems[rootIdx]
+
+	if len(elems) == 1 {
+		return
+	}
+
+	out = osPathSubJoin(out, elems[:rootIdx]...)
+
+	return
+}
+
+// osPathSep returns os.PathSeparator.
+func osPathSep() (out string) {
+
+	out = string(os.PathSeparator)
+
+	return
+}
+
+// osPathSliceJoin is the OS-specific implementation of pathSliceJoin.
+func osPathSliceJoin(sl []string) (out string) {
+	out = filepath.Join(sl...)
+	return
+}
+
+// osPathSlicePipeJoin is the OS-specific implementation of pathSlicePipeJoin.
+func osPathSlicePipeJoin(sl []string, root string) (out string) {
+
+	out = osPathSubJoin(root, sl...)
+
+	return
+}
+
+// osPathSubJoin is the OS-specific implementation of pathSubJoin.
+func osPathSubJoin(root string, elems ...string) (out string) {
+
+	if elems == nil || len(elems) == 0 {
+		out = root
+		return
+	}
+
+	out = filepath.Join(
+		root,
+		filepath.Join(
+			elems...,
+		),
+	)
+
+	return
+}

tplx/sprigx/funcs_tpl_psutils.go

@@ -0,0 +1,43 @@
+package sprigx
+
+import (
+	`github.com/shirou/gopsutil/v4/host`
+)
+
+/*
+psHostPlatInfo returns a "squashed" github.com/shirou/gopsutil/v4/host.PlatformInformation;
+normally it returns a (string, string, string, error)
+but you can only have a (any) or (any, error) return in Golang templates.
+*/
+func psHostPlatInfo() (platInfo [3]string, err error) {
+
+	var s1 string
+	var s2 string
+	var s3 string
+
+	if s1, s2, s3, err = host.PlatformInformation(); err != nil {
+		return
+	}
+
+	platInfo = [3]string{s1, s2, s3}
+
+	return
+}
+
+/*
+psHostVirt returns a "squared" github.com/shirou/gopsutil/v4/host.Virtualization;
+normally it returns a (string, string, error) but Go templates etc.
+*/
+func psHostVirt() (virtInfo [2]string, err error) {
+
+	var s1 string
+	var s2 string
+
+	if s1, s2, err = host.Virtualization(); err != nil {
+		return
+	}
+
+	virtInfo = [2]string{s1, s2}
+
+	return
+}

tplx/sprigx/funcs_tpl_psutils_linux.go

@@ -0,0 +1,15 @@
+package sprigx
+
+import (
+	`context`
+
+	`github.com/shirou/gopsutil/v4/sensors`
+)
+
+// psSensorExTemp wraps github.com/shirou/gopsutil/v4/sensors.NewExLinux().TemperatureWithContext() to not require a context.
+func psSensorExTemp() (exTemps []sensors.ExTemperature, err error) {
+
+	exTemps, err = sensors.NewExLinux().TemperatureWithContext(context.Background())
+
+	return
+}

tplx/sprigx/funcs_tpl_strings.go

@@ -0,0 +1,52 @@
+package sprigx
+
+import (
+	`strings`
+)
+
+/*
+extIndent serves as a much more flexible alternative to the Sprig `indent`.
+
+It has 6 arguments (the last of which may be passed in via pipeline):
+
+	* levels: The level of indentation for the text. If less than or equal to `0`, `extIndent` just returns `<input>` as-is and NO-OPs otherwise.
+	* skipFirst: If true, skip indenting the first line. This is particularly handy if you like to visually align your function calls in your templates.
+	* skipEmpty: If true, do not add an indent to *empty* lines (where an "empty line" means "only has a linebreak").
+	* skipWhitespace: If true, do not add an indent to lines that *only* consist of whitespace (spaces, tabs, etc.) and a linebreak.
+	* indentString: The string to use as the "indent character". This can be any string, such as `" "`, `"\t"`, `"."`, `"|"`, `"=="` etc.
+					(In fact, if indentString is set to "\n" and levels is always set to 1, this function can even be used to doubelspace text!)
+	* input: The text to be indented. Because it is the last argument, `extIndent` works with pipelined text as well.
+
+*/
+func extIndent(levels int, skipFirst, skipEmpty, skipWhitespace bool, indentString, input string) (out string) {
+
+	var idx int
+	var pad string
+	var line string
+	var lines []string
+
+	if levels <= 0 {
+		out = input
+		return
+	}
+
+	pad = strings.Repeat(indentString, levels)
+	lines = strings.Split(input, "\n")
+
+	for idx, line = range lines {
+		if idx == 0 && skipFirst {
+			continue
+		}
+		if skipWhitespace && strings.TrimSpace(line) == "" && line != "" {
+			continue
+		}
+		if skipEmpty && (line == "" || line == "\r") {
+			continue
+		}
+		lines[idx] = pad + line
+	}
+
+	out = strings.Join(lines, "\n")
+
+	return
+}

tplx/sprigx/funcs_tpl_sys.go

@@ -0,0 +1,39 @@
+package sprigx
+
+import (
+	`fmt`
+	`runtime`
+)
+
+// sysArch returns [runtime.GOARCH].
+func sysArch() (out string) {
+
+	out = runtime.GOARCH
+
+	return
+}
+
+// sysOsNm returns [runtime.GOOS].
+func sysOsNm() (out string) {
+
+	out = runtime.GOOS
+
+	return
+}
+
+// sysRuntime returns various information from [runtime].
+func sysRuntime() (out map[string]string) {
+
+	out = map[string]string{
+		"compiler": runtime.Compiler,
+		"arch":     runtime.GOARCH,
+		"os":       runtime.GOOS,
+		"maxprocs": fmt.Sprintf("%d", runtime.GOMAXPROCS(-1)),
+		"cpu_cnt":  fmt.Sprintf("%d", runtime.NumCPU()),
+		"num_cgo":  fmt.Sprintf("%d", runtime.NumCgoCall()),
+		"num_go":   fmt.Sprintf("%d", runtime.NumGoroutine()),
+		"go_ver":   runtime.Version(),
+	}
+
+	return
+}

tplx/sprigx/funcs_tpl_time.go

@@ -0,0 +1,139 @@
+package sprigx
+
+import (
+	`errors`
+	`strconv`
+	`strings`
+	`time`
+)
+
+/*
+tmFmt formats time t using format string fstr.
+
+While one certainly can do the same via e.g.
+
+	{{- $t := tmNow -}}
+	{{ $t.Format $fstr }}
+
+This takes a time.Time as the second (and last) parameter,
+allowing it to work in pipelines.
+*/
+func tmFmt(fstr string, t time.Time) (out string) {
+
+	out = t.Format(fstr)
+
+	return
+}
+
+/*
+tmParseMonth attempts to first try tmParseMonthInt
+and then tries tmParseMonthStr if v is not "numeric".
+*/
+func tmParseMonth(v any) (mon time.Month, err error) {
+
+	var s string
+
+	if mon, err = tmParseMonthInt(v); err != nil {
+		if errors.Is(err, strconv.ErrSyntax) {
+			// NaN
+			err = nil
+		} else {
+			return
+		}
+	}
+
+	// If it gets here, it's a non-numeric string.
+	if s, err = toString(v); err != nil {
+		return
+	}
+	if mon, err = tmParseMonthStr(s); err != nil {
+		return
+	}
+
+	return
+}
+
+/*
+tmParseMonthInt parses a number representation of month n to a time.Month.
+n may be any numeric type or a string representation of a number
+(or a custom type derived from those).
+
+A negative integer (or float, etc.) will be converted to a positive one (e.g. -6 => 6 => time.June).
+
+floats are rounded to the nearest integer.
+
+The integer should map directly to the month constants in the time module:
+
+	* 1: January
+	* 2: February
+	* 3: March
+	* 4: April
+	* 5: May
+	* 6: June
+	* 7: July
+	* 8: August
+	* 9: September
+	* 10: October
+	* 11: November
+	* 12: December
+
+If n resolves to 0, mon will be the current month (as determined by time.Now).
+
+If n resolves to > 12, err will be ErrBadMonth.
+*/
+func tmParseMonthInt(n any) (mon time.Month, err error) {
+
+	var i int
+
+	if i, _, err = toPosInt(n); err != nil {
+		return
+	}
+
+	if i == 0 {
+		mon = time.Now().Month()
+		return
+	}
+
+	if i > 12 {
+		err = ErrBadMonth
+		return
+	}
+
+	mon = time.Month(i)
+
+	return
+}
+
+/*
+tmParseMonthStr parses a string representation of month s to a time.Month.
+
+It normalizes s to lowercase and only uses the first 3 characters
+(the minimum length needed to determine month name
+uniqueness - "June" vs. "July", "March" vs. "May").
+
+An empty (or whitespace-only) string will use the current month (as determined by time.Now).
+*/
+func tmParseMonthStr(s string) (mon time.Month, err error) {
+
+	var i int
+	var m time.Month
+
+	if strings.TrimSpace(s) == "" {
+		mon = time.Now().Month()
+		return
+	}
+
+	s = strings.ToLower(strings.TrimSpace(s))[0:3]
+
+	for i = range 12 {
+		m = time.Month(i + 1)
+		if strings.ToLower(m.String())[0:3] == s {
+			mon = m
+			return
+		}
+	}
+
+	err = ErrBadMonth
+
+	return
+}