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authoraarne <aarne@chalmers.se>2009-06-22 15:39:08 +0000
committeraarne <aarne@chalmers.se>2009-06-22 15:39:08 +0000
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+--1 Common: Structures with Common Implementations.
+
+-- This module defines the categories that uniformly have the linearization
+-- ${s : Str}$ in all languages.
+
+-- Moreover, this module defines the abstract parameters of tense, polarity, and
+-- anteriority, which are used in [``Phrase`` Phrase.html] to generate different
+-- forms of sentences. Together they give 4 x 2 x 2 = 16 sentence forms.
+
+-- These tenses are defined for all languages in the library. More tenses
+-- can be defined in the language extensions, e.g. the "passé simple" of
+-- Romance languages in [``ExtraRomance`` ../romance/ExtraRomance.gf].
+
+abstract Common = {
+
+ cat
+
+--2 Top-level units
+
+-- Constructed in [``Text`` Text.html]: $Text$.
+
+ Text ; -- text consisting of several phrases e.g. "He is here. Why?"
+
+-- Constructed in [``Phrase`` Phrase.html]:
+
+ Phr ; -- phrase in a text e.g. "but be quiet please"
+ Utt ; -- sentence, question, word... e.g. "be quiet"
+ Voc ; -- vocative or "please" e.g. "my darling"
+ PConj ; -- phrase-beginning conjunction e.g. "therefore"
+
+-- Constructed in [``Sentence`` Sentence.html]:
+
+ SC ; -- embedded sentence or question e.g. "that it rains"
+
+--2 Adverbs
+
+-- Constructed in [``Adverb`` Adverb.html].
+-- Many adverbs are constructed in [``Structural`` Structural.html].
+
+ Adv ; -- verb-phrase-modifying adverb e.g. "in the house"
+ AdV ; -- adverb directly attached to verb e.g. "always"
+ AdA ; -- adjective-modifying adverb e.g. "very"
+ AdN ; -- numeral-modifying adverb e.g. "more than"
+ IAdv ; -- interrogative adverb e.g. "why"
+ CAdv ; -- comparative adverb e.g. "more"
+
+--2 Tense, polarity, and anteriority
+
+ Tense ; -- tense e.g. present, past, future
+ Pol ; -- polarity e.g. positive, negative
+ Ant ; -- anteriority e.g. simultaneous, anterior
+
+ fun
+ PPos, PNeg : Pol ; -- I sleep/don't sleep
+
+ TPres : Tense ;
+ ASimul : Ant ;
+ TPast, TFut, TCond : Tense ; -- I slept/will sleep/would sleep --# notpresent
+ AAnter : Ant ; -- I have slept --# notpresent
+
+}