feat: adding prefixes to dictionary (#2212)

* feat: adding prefixes to dictionary

* feat: `AffixData` for `DictWordMetadata`

harper-core/annotations.json

@@ -997,6 +997,14 @@
 			"metadata": {
 				"//": "not yet implemented"
 			}
+		},
+		"(": {
+			"#": "prefix property",
+			"metadata": {
+				"affix": {
+					"is_prefix": true
+				}
+			}
 		}
 	}
 }

harper-core/dictionary.dict

@@ -11157,7 +11157,7 @@ Zworykin/g
 Zyrtec/g
 Zyuganov/g
 Zzz
-a/~DP
+a/~DP(
 a.m./
 aah/NV
 aardvark/~NSg
@@ -12585,7 +12585,7 @@ antagonist/~NSg
 antagonistic/~JQ
 antagonize/VdSG
 antarctic/~J
-ante/~NSgV
+ante/~NSgV(
 anteater/NgS
 antebellum/~J
 antecedence/Nmg
@@ -12620,7 +12620,7 @@ anthropomorphise/V!_
 anthropomorphism/Nmg
 anthropomorphize/V
 anthropomorphous/J
-anti/~JNSgP
+anti/~JNSgP(
 antiabortion/J
 antiabortionist/NgS
 antiaircraft/JN
@@ -12949,7 +12949,7 @@ arbutus/NgS
 arc/~NSgVdG
 arcade/~NgSV
 arcane/~J
-arch/~NgSVGd>J^YpZv
+arch/~NgSVGd>J^YpZv(
 archaeological/~JY
 archaeologist/~NSg
 archaeology/~Nmg
@@ -13508,7 +13508,7 @@ authorized/~JVtT
 authorship/~Nmg
 autism/~Nmg
 autistic/~JN
-auto/~JNgSV
+auto/~JNgSV(
 autobahn/~NSg
 autobiographer/NSg
 autobiographic/J
@@ -14436,6 +14436,7 @@ bend/~VbG>SNgBZ
 bendability/Nmg
 bender/~Ng
 bendy/J^>N
+# bene              # prefixes that are not also words in their own right don't belong in the dictionary
 beneath/~P
 benedictine/~
 benediction/NwSg
@@ -14572,7 +14573,7 @@ bezel/NgS
 bezier/NgS
 bf/~N
 bhaji/N
-bi/~J>NSgZ
+bi/~J>NSgZ(
 biannual/JYN
 bias/~NgSVGdJ
 biased/~JVtTU
@@ -16892,6 +16893,7 @@ center/~NgJVdG
 centerboard/NSg
 centerfold/NgS
 centerpiece/~NgS
+# centi             # prefixes that are not also words in their own right don't belong in the dictionary
 centigrade/JN
 centigram/NSg
 centiliter/NgS<
@@ -17554,6 +17556,7 @@ circularize/VdSG
 circulate/~VdSGr
 circulation/~NSgr
 circulatory/JN
+# circum            # prefixes that are not also words in their own right don't belong in the dictionary
 circumcise/VdSGXn
 circumcised/JVtTNU
 circumcision/~Ng
@@ -17913,7 +17916,7 @@ clxvi
 clxvii
 cm/~
 cnidarian/NgS
-co/~NSIdE
+co/~NSIdE(
 coach/~NgSVdG
 coachload/NS
 coachman/N0g
@@ -20368,6 +20371,7 @@ dc/~N
 dd/~NSdG
 dded/K
 dding/K
+# de                # prefixes that are not also words in their own right don't belong in the dictionary
 deacon/~NgSV
 deaconess/NgS
 dead/~J^Y>NgVXn
@@ -20439,6 +20443,7 @@ debtor/~NgS
 debugger/NSg
 debut/~NgVGd
 debutante/NSg
+# deca              # prefixes that are not also words in their own right don't belong in the dictionary
 decade/~NgS
 decadence/~Nmg
 decadency/Nmg
@@ -21117,6 +21122,7 @@ dextrose/Nmg
 dharma/~NwgS
 dhoti/NSg
 dhow/NgS
+# di                # prefixes that are not also words in their own right don't belong in the dictionary
 diabetes/~Nmg
 diabetic/~JNSg
 diabolic/J
@@ -21406,7 +21412,7 @@ dirtball/NS
 dirtily/Ry
 dirtiness/Nmg
 dirty/~J^>VdSGp
-dis/~VNgI
+dis/~VNgI(
 disable/~VdSGJL
 disablement/Ng
 disambiguate/~VSdGn
@@ -22399,6 +22405,7 @@ dynamo/~NSg
 dynastic/~J
 dynasty/~NSg
 dyno/NSg
+# dys               # prefixes that are not also words in their own right don't belong in the dictionary
 dysentery/~Nmg
 dysfunction/~Nmg
 dysfunctional/~J
@@ -22989,7 +22996,7 @@ emulsification/Nmg
 emulsifier/~NgS
 emulsify/Vd>SGnZ
 emulsion/~NwgSV
-en/~NSgPI
+en/~NSgPI(
 enable/~Vd>SGZ
 enabler/NgS
 enact/~VSdGrL
@@ -23575,6 +23582,7 @@ etude/NSg
 etymological/~JY
 etymologist/NSg
 etymology/~NwSg
+# eu                # prefixes that are not also words in their own right don't belong in the dictionary
 eucalypti/N9
 eucalyptus/~N0gS
 euchre/NSgVdG
@@ -23682,7 +23690,7 @@ evolutionist/NSg
 evolve/~VdSG
 ewe/~NSg>Z
 ewer/Ng
-ex/~NgSVJ
+ex/~NgSVJ(
 exabyte/NgS
 exacerbate/VGdSn
 exacerbation/Nwg
@@ -24032,7 +24040,7 @@ extortion/~Ng>Z
 extortionate/JY
 extortioner/Ng
 extortionist/NgS
-extra/~JNSg
+extra/~JNSg(
 extracellular/~J
 extract/~NgSVdGv
 extraction/~NwSg
@@ -25314,7 +25322,7 @@ forceps/N09g
 forcible/~J
 forcibly/~Ry
 ford/~NgSVdGB
-fore/~JNgS
+fore/~JNgS(
 forearm/~NSgVGd
 forebear/NgSV
 forebode/VGdSNz
@@ -28126,7 +28134,7 @@ hesitate/~VdSGnX
 hesitating/VNYU
 hesitation/~Ng
 hessian/~N
-hetero/~JNSg
+hetero/~JNSg(
 heterodox/J
 heterodoxy/Nmg
 heterogeneity/Ng
@@ -28427,7 +28435,7 @@ homily/~NSg
 hominid/NSgJ
 hominoid/NS
 hominy/Ng
-homo/~NgSJ
+homo/~NgSJ(
 homoerotic/J
 homogeneity/Ng
 homogeneous/~JY
@@ -28917,6 +28925,7 @@ hymn/~NgSVdG
 hymnal/~NgSJ
 hymnbook/NSg
 hype/~NmgSVGd>J
+# hyper             # prefixes that are not also words in their own right don't belong in the dictionary
 hyperactive/J
 hyperactivity/~Ng
 hyperaggressive/J
@@ -29113,6 +29122,7 @@ ignore/~VGdS
 iguana/~NgS
 ii/~
 iii/~
+# il                # prefixes that are not also words in their own right don't belong in the dictionary
 ilea/N
 ileitis/Ng
 ileum/Ng
@@ -29153,6 +29163,7 @@ illustrative/~JY
 illustrator/~NSg
 illustrious/~JYp
 illustriousness/Nmg
+# im                # prefixes that are not also words in their own right don't belong in the dictionary
 image/~NwSgVdG
 imager/NgS
 imagery/~Nmg
@@ -29464,7 +29475,7 @@ impure/~JY^>V
 impurity/~NSg
 imputation/NSg
 impute/VdSGB
-in/~PJRrg            # removed `4`, verb senses are obsolete, `NS`, noun sense is marginal
+in/~PJRrg(          # removed `4`, verb senses are obsolete, `NS`, noun sense is marginal
 inaccuracy/NwgS
 inaction/~Nmg
 inadequacy/NS
@@ -30114,7 +30125,7 @@ intent/~NSgJYp
 intention/~NgSV
 intentional/~JYNU
 intentness/Ng
-inter/~VSEL
+inter/~VSEL(
 interact/~VGdSNv
 interaction/~NwSg
 interactive/~JYN
@@ -30298,6 +30309,7 @@ intonation/~NSg
 intoxicant/NSgJ
 intoxicate/VdSGJn
 intoxication/~Ng
+# intra             # prefixes that are not also words in their own right don't belong in the dictionary
 intracranial/~J
 intramural/~JN
 intramuscular/J
@@ -30316,7 +30328,7 @@ intriguer/Ng
 intriguing/~JYV6N
 intrinsic/~JNgS
 intrinsically/~Ry
-intro/~NSgV
+intro/~NSgV(
 introduce/~VGdSr
 introduction/~N0gr
 introductions/~N9
@@ -31100,7 +31112,7 @@ killer/~NgJ
 killing/~JNgV
 killjoy/NSg
 kiln/~NgSVdG
-kilo/~NgS
+kilo/~NgS(
 kilobit/NSg
 kilobyte/NSg
 kilocoulomb/S
@@ -32654,7 +32666,7 @@ mackerel/~NwSg
 mackinaw/NSg
 mackintosh/~NgS
 macrame/NgV
-macro/~JNSg
+macro/~JNSg(
 macroaggregate/Ng
 macrobiotic/JS
 macrobiotics/Nwg
@@ -33383,7 +33395,7 @@ meeting/~NwgSV
 meetinghouse/NSg
 meetup/NgS
 meg/~NSV
-mega/~JN
+mega/~JN(
 megabit/NSg
 megabucks/Ng
 megabyte/NgS
@@ -33700,7 +33712,7 @@ mica/~Ng
 mice/~N9V
 mick/~NSJ
 mickey/~NgSV
-micro/~JNSgV
+micro/~JNSgV(
 microaggression/NSg
 microarchitecture/NgS
 microbe/NgS
@@ -33762,7 +33774,7 @@ microtransaction/NSg
 microvascular/J
 microwave/~NSgVdGB
 microwaveable/J
-mid/~JPN
+mid/~JPN(
 midair/J
 midcentury/J
 midday/~Ng
@@ -33864,6 +33876,7 @@ millennial/JNgS
 millennium/~NgS
 miller/~Ng
 millet/~Ng
+# milli             # prefixes that are not also words in their own right don't belong in the dictionary
 milliamp/NgS
 milliard/Sg
 millibar/NgS
@@ -33929,7 +33942,7 @@ minestrone/Nmg
 minesweeper/NSg
 mingle/VdGSN
 mingy/J
-mini/~JNgS
+mini/~JNgS(
 miniature/~NgSJV
 miniaturisation/Ng!_
 miniaturise/VGdS!_
@@ -34001,6 +34014,7 @@ mirthful/JYp
 mirthfulness/Nmg
 mirthless/JY
 miry/J>^
+# mis               # prefixes that are not also words in their own right don't belong in the dictionary
 misaddress/VdSG
 misadventure/NwgS
 misaligned/JV
@@ -34400,7 +34414,7 @@ monkey/~NgSVdG
 monkeyshine/NSg
 monkish/J
 monkshood/NSg
-mono/~NgJ
+mono/~NgJ(
 monochromatic/~J
 monochrome/~NgSJ
 monocle/NSgd
@@ -34774,7 +34788,7 @@ mullet/~NgS
 mulligan/~NSg
 mulligatawny/Ng
 mullion/NSgVd
-multi/~N
+multi/~N(
 multibillion/J
 multibyte/J
 multicellular/J
@@ -35273,6 +35287,7 @@ nelson/~NSg
 nematode/NSg
 nemeses/N9
 nemesis/~N0g
+# neo               # prefixes that are not also words in their own right don't belong in the dictionary
 neoclassic/J
 neoclassical/~JN
 neoclassicism/Nmg
@@ -35594,7 +35609,7 @@ nomination's/r
 nominative/~JNSg
 nominator/~NSge
 nominee/~NgS
-non/~N
+non/~N(
 nonabrasive/JN
 nonabsorbent/JSg
 nonacademic/JN
@@ -36462,6 +36477,7 @@ omission/~NwgS
 omit/~VS
 omitted/~V
 omitting/~VN
+# omni              # prefixes that are not also words in their own right don't belong in the dictionary
 omnibus/~NgSJV
 omnidirectional/J
 omnipotence/Nmg
@@ -36779,7 +36795,7 @@ ourself/Ia1F        # I:pronoun a:personal 1:person .~singular F:reflexive (of t
 ourselves/~Ia1F:    # I:pronoun a:personal 1:person :~plural F:reflexive
 oust/~VGd>SZ
 ouster/~NgSV
-out/~PNSgVGd>JRz
+out/~PNSgVGd>JRz(
 outage/NSg
 outargue/VGdS
 outback/~NgSJV
@@ -36942,7 +36958,7 @@ oven/~NgSV
 ovenbird/NSg
 ovenproof/J
 ovenware/Nmg
-over/~JYNgSP
+over/~JYNgSP(
 overabundance/Ng
 overabundant/J
 overachieve/VGd>SZ
@@ -37439,7 +37455,7 @@ pampas/Ng
 pamper/VdGSN
 pamphlet/~NgSV
 pamphleteer/NgSV
-pan/~NSgVJ
+pan/~NSgVJ(
 panacea/NSg
 panache/Ng
 panama/~NgS
@@ -37528,7 +37544,7 @@ paprika/~NmgJ
 papyri/~N9
 papyrus/~N0g
 par/~NSgJ>PVGdZBz
-para/~NgSJ
+para/~NgSJ(
 parable/~NgSVJ
 parabola/N0Sg
 parabolæ/N9
@@ -38137,6 +38153,7 @@ peppy/J^>Np
 pepsin/Ng
 peptic/JNgS
 peptide/~NS
+# per               # prefixes that are not also words in their own right don't belong in the dictionary
 peradventure/Ng
 perambulate/VGdSXn
 perambulation/Nwg
@@ -39241,7 +39258,7 @@ polonaise/NSgV
 polonium/Nmg
 poltergeist/~NgS
 poltroon/NSgJ
-poly/~NJV
+poly/~NJV(
 polyacrylamide/N
 polyamory/NS
 polyandrous/J
@@ -39448,7 +39465,7 @@ possibility/~NSg
 possible/~JNSg
 possibly/~R         # adverb of probability/certainty/affirmation; modal adverb
 possum/~NSgV
-post/~NwgSVGd>PZz
+post/~NwgSVGd>PZz(
 postage/~Nmg
 postal/~J
 postbag/NgS
@@ -40034,7 +40051,7 @@ prizefighter/Ng
 prizefighting/Ng
 prizewinner/NgS
 prizewinning/J
-pro/~NSgPJ
+pro/~NSgPJ(
 probabilistic/~J
 probability/~NSg
 probable/~JNSg
@@ -40316,6 +40333,7 @@ protein/~NwSg
 protest/NwgS
 protestant/~JNgS
 protestation/NwgS
+# proto             # prefixes that are not also words in their own right don't belong in the dictionary
 protocol/~NwgSV
 proton/~NSg
 protoplasm/Nmg
@@ -40389,7 +40407,7 @@ psaltery/NSg
 psephologist/NS
 psephology/N
 pseud/NS
-pseudo/~NSJ
+pseudo/~NSJ(
 pseudocode/NmgG
 pseudonym/~NSg
 pseudonymous/~J
@@ -41244,7 +41262,7 @@ razz/NgSVGd
 razzmatazz/Ng
 rcpt/N
 rd/~N
-re/PNSgvz
+re/PNSgvz(
 reach/~VdGSNgB
 reachable/~JNU
 reacquire/VdSG
@@ -42130,7 +42148,7 @@ retributive/J
 retrieval/~NSg
 retrieve/~Vd>GSNgZB
 retriever/Ng
-retro/~JNmgS
+retro/~JNmgS(
 retroactive/~JY
 retrofire/NSVGdJ
 retrofit/~VSNg
@@ -43736,7 +43754,7 @@ semaphore/NSgVdG
 semblance/NSgr
 semen/~Nmg
 semester/~NSg
-semi/~NgS
+semi/~NgS(
 semiannual/JYN
 semiarid/J
 semiautomatic/JNgSQ
@@ -46775,7 +46793,7 @@ suasion/NgE
 suave/J>Y^Np
 suaveness/Ng
 suavity/Ng
-sub/~NSgVP
+sub/~NSgVP(
 subaltern/JNgS
 subaqua/J
 subarctic/~ONJ
@@ -47144,7 +47162,7 @@ suntanning/V6
 suntrap/NS
 sunup/Ng
 sup/~V>SNgJZ
-super/~JNgV
+super/~JNgV(
 superabundance/NwgS
 superabundant/J
 superannuate/VGdSn
@@ -47283,6 +47301,7 @@ supremacy/~Ng
 supreme/~JYVN
 supremo/NS
 supt/V
+# sur               # prefixes that are not also words in their own right don't belong in the dictionary
 surcease/NSgVdG
 surcharge/NSgVdG
 surcingle/NSgV
@@ -48004,6 +48023,7 @@ teetotalism/Ng
 teetotaller/NgS!@_
 tektite/NSg
 tel/~N
+# tele              # prefixes that are not also words in their own right don't belong in the dictionary
 telecast/~VG>SNgZ
 telecaster/Ng
 telecom/NgS
@@ -49152,7 +49172,7 @@ tranquilizer/Ng
 tranquillise/Vd>SGZ!_
 tranquilliser/Ng!_
 tranquillity/Ng!_
-trans/~JNVi
+trans/~JNVi(
 transact/VdGS
 transaction/~NSg
 transactional/J
@@ -49372,6 +49392,7 @@ tress/NgSVE
 trestle/~NgS
 trews/N
 trey/~NgS
+# tri               # prefixes that are not also words in their own right don't belong in the dictionary
 triad/~NSg
 triage/NmgVd
 triager/NSg
@@ -49900,7 +49921,7 @@ ulterior/J
 ultimate/~JYNgV
 ultimatum/~NgS
 ultimo/~JN
-ultra/~JNSg
+ultra/~JNSg(
 ultraconservative/JNSg
 ultrahigh/J
 ultraist/NSg
@@ -49929,6 +49950,7 @@ umlaut/NgSV
 ump/NSgVGd
 umpire/~NgSVGd
 umpteen/H
+# un                # prefixes that are not also words in their own right don't belong in the dictionary
 unabridged/~JNgS
 unacceptability/Nmg
 unacceptable/~JN
@@ -50026,7 +50048,7 @@ undecided/~JNSgV
 undefine/VGdS
 undemonstrative/JY
 undeniably/Ry
-under/~PJN
+under/~PJN(
 underachieve/VGd>SLZ
 underachiever/Ng
 underact/VSdG
@@ -50259,6 +50281,7 @@ unhealthy/~J^
 unhistorical/J
 unholy/~J^
 unhurt/J
+# uni               # prefixes that are not also words in their own right don't belong in the dictionary
 unibody/NSg
 unicameral/~J
 unicellular/JN
@@ -51037,7 +51060,7 @@ vicar/~NSg
 vicarage/~NSg
 vicarious/JYp
 vicariousness/Ng
-vice/~NgSVJPe
+vice/~NgSVJPe(
 viced/JVtT
 vicegerent/NSgJ
 vicennial/JN
@@ -53414,7 +53437,7 @@ pentest/VSdG
 pentester/NSg       # penetration tester
 pentesting/NmgV6
 postfix/NgSVdG
-pre/~PNV            # !! please check and comment !! dictionaries only list prefix pre-
+pre/~PNV(           # !! please check and comment !! dictionaries only list prefix pre-
 preshared/J
 quadtree/NgS        # data structure
 quicksort/NgSVdG    # algo

harper-core/src/dict_word_metadata.rs

@@ -18,12 +18,20 @@ use crate::{Document, TokenKind, TokenStringExt};
 /// having their own lexeme, but "Ivy" and "ivy" sharing the same lexeme.
 #[derive(Debug, Default, Clone, PartialEq, Eq, Serialize, Deserialize, PartialOrd, Hash)]
 pub struct DictWordMetadata {
+    /// The main parts of speech which have extra data.
     pub noun: Option<NounData>,
     pub pronoun: Option<PronounData>,
     pub verb: Option<VerbData>,
     pub adjective: Option<AdjectiveData>,
     pub adverb: Option<AdverbData>,
     pub conjunction: Option<ConjunctionData>,
+    pub determiner: Option<DeterminerData>,
+    pub affix: Option<AffixData>,
+    /// Parts of speech which don't have extra data.
+    /// Whether the word is a [preposition](https://www.merriam-webster.com/dictionary/preposition).
+    #[serde(default = "default_false")]
+    pub preposition: bool,
+    /// Whether the word is an offensive word.
     pub swear: Option<bool>,
     /// The dialects this word belongs to.
     /// If no dialects are defined, it can be assumed that the word is
@@ -33,11 +41,6 @@ pub struct DictWordMetadata {
     /// Orthographic information: letter case, spaces, hyphens, etc.
     #[serde(default = "OrthFlags::empty")]
     pub orth_info: OrthFlags,
-    /// Whether the word is a [determiner](https://en.wikipedia.org/wiki/English_determiners).
-    pub determiner: Option<DeterminerData>,
-    /// Whether the word is a [preposition](https://www.merriam-webster.com/dictionary/preposition).
-    #[serde(default = "default_false")]
-    pub preposition: bool,
     /// Whether the word is considered especially common.
     #[serde(default = "default_false")]
     pub common: bool,
@@ -189,11 +192,12 @@ impl DictWordMetadata {
             adjective: merge!(self.adjective, other.adjective),
             adverb: merge!(self.adverb, other.adverb),
             conjunction: merge!(self.conjunction, other.conjunction),
+            determiner: merge!(self.determiner, other.determiner),
+            affix: merge!(self.affix, other.affix),
+            preposition: self.preposition || other.preposition,
             dialects: self.dialects | other.dialects,
             orth_info: self.orth_info | other.orth_info,
             swear: self.swear.or(other.swear),
-            determiner: merge!(self.determiner, other.determiner),
-            preposition: self.preposition || other.preposition,
             common: self.common || other.common,
             derived_from: self.derived_from.or(other.derived_from),
             pos_tag: self.pos_tag.or(other.pos_tag),
@@ -234,6 +238,7 @@ impl DictWordMetadata {
                 self.adverb = None;
                 self.conjunction = None;
                 self.determiner = None;
+                self.affix = None;
                 self.preposition = false;
             }
             PROPN => {
@@ -259,6 +264,7 @@ impl DictWordMetadata {
                 self.adverb = None;
                 self.conjunction = None;
                 self.determiner = None;
+                self.affix = None;
                 self.preposition = false;
             }
             PRON => {
@@ -272,6 +278,7 @@ impl DictWordMetadata {
                 self.adverb = None;
                 self.conjunction = None;
                 self.determiner = None;
+                self.affix = None;
                 self.preposition = false;
             }
             VERB => {
@@ -293,6 +300,7 @@ impl DictWordMetadata {
                 self.adverb = None;
                 self.conjunction = None;
                 self.determiner = None;
+                self.affix = None;
                 self.preposition = false;
             }
             AUX => {
@@ -314,6 +322,7 @@ impl DictWordMetadata {
                 self.adverb = None;
                 self.conjunction = None;
                 self.determiner = None;
+                self.affix = None;
                 self.preposition = false;
             }
             ADJ => {
@@ -327,6 +336,7 @@ impl DictWordMetadata {
                 self.adverb = None;
                 self.conjunction = None;
                 self.determiner = None;
+                self.affix = None;
                 self.preposition = false;
             }
             ADV => {
@@ -340,6 +350,7 @@ impl DictWordMetadata {
                 self.adjective = None;
                 self.conjunction = None;
                 self.determiner = None;
+                self.affix = None;
                 self.preposition = false;
             }
             ADP => {
@@ -350,6 +361,7 @@ impl DictWordMetadata {
                 self.adverb = None;
                 self.conjunction = None;
                 self.determiner = None;
+                self.affix = None;
                 self.preposition = true;
             }
             DET => {
@@ -359,6 +371,7 @@ impl DictWordMetadata {
                 self.adjective = None;
                 self.adverb = None;
                 self.conjunction = None;
+                self.affix = None;
                 self.preposition = false;
                 self.determiner = Some(DeterminerData::default());
             }
@@ -373,6 +386,7 @@ impl DictWordMetadata {
                 self.adjective = None;
                 self.adverb = None;
                 self.determiner = None;
+                self.affix = None;
                 self.preposition = false;
             }
             _ => {}
@@ -958,6 +972,22 @@ impl ConjunctionData {
     }
 }
 
+#[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, PartialOrd, Eq, Hash, Default)]
+pub struct AffixData {
+    pub is_prefix: Option<bool>,
+    pub is_suffix: Option<bool>,
+}
+
+impl AffixData {
+    /// Produce a copy of `self` with the known properties of `other` set.
+    pub fn or(&self, _other: &Self) -> Self {
+        Self {
+            is_prefix: self.is_prefix.or(_other.is_prefix),
+            is_suffix: self.is_suffix.or(_other.is_suffix),
+        }
+    }
+}
+
 /// A regional dialect.
 ///
 /// Note: these have bit-shifted values so that they can ergonomically integrate with