feat: add verb declension for Eittlandic

conlanging-eittlandic.el

@@ -30,6 +30,57 @@
 
 (require 'dash)
 
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;                                  Constants                                 ;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+                                        ; Verbs ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defconst conlanging-eittlandic--generic-verb-inflexion-indicative-present
+  '(("" . "r") ("" . "r") ("" . "r") (nil . "um") (nil . "ið") (nil . "ið"))
+  "Generic indicative present declension for Eittlandic verbs.
+
+This table shows the declension of verbs for the indicative
+present.  The order of the declensions is first, second, and
+third person, first singular, then plural.
+
+Each declension is a cons cell containing first the default
+underlying vowel, and second the generic suffix.")
+
+(defconst conlanging-eittlandic--generic-verb-inflexion-subjunctive-present
+  '((nil . "ir") (nil . "ir") (nil . "ir")
+    (nil . "im") (nil . "ið") (nil . "ið"))
+  "Generic subjunctive present declension for Eittlandic verbs.
+
+See
+`conlanging-eittlandic--generic-verb-inflexion-indicative-present'.")
+
+(defconst conlanging-eittlandic--generic-verb-inflexion-past
+  '((nil . "t") (nil . "t") (nil . "t")
+    (nil . "um") (nil . "uð") (nil . "uð"))
+  "Generic past declension for Eittlandic verbs.
+
+See
+`conlanging-eittlandic--generic-verb-inflexion-indicative-present'.")
+
+(defconst conlanging-eittlandic--strong-verb-inflexion-passive
+  '((nil . "umk") (nil . "sk") ("" . "sk")
+    (nil . "umk") ("" . "sk") ("" . "sk"))
+  "Strong passive inflexion for Eittlandic verbs.
+
+See
+`conlanging-eittlandic--generic-verb-inflexion-indicative-present'.")
+
+(defconst conlanging-eittlandic--weak-verb-inflexion-passive
+  '((nil . "umk") ("" . "isk") ("" . "isk")
+    (nil . "umk") ("" . "isk") ("" . "isk"))
+  "Weak passive inflexion for Eittlandic verbs.
+
+See
+`conlanging-eittlandic--generic-verb-inflexion-indicative-present'.")
+
+                                        ; Nouns ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
 (defconst conlanging-eittlandic--strong-common-noun-declension
   '((nil . "r") (nil . nil) (nil . nil)  ("a" . "r")
     (nil . "r") (nil . nil) (nil . "um") ("a" . "r"))
@@ -76,6 +127,12 @@ See `conlanging-eittlandic--strong-common-noun-declension' for more info.")
 
 See `conlanging-eittlandic--strong-common-noun-declension' for more info.")
 
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;                                  Functions                                 ;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+                                        ; Generic ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
 (defun conlanging-eittlandic--maybe-underlying-vowel (underlying-vowel default-vowel)
   "Return which underlying vowel should be used.
 
@@ -93,8 +150,8 @@ UNDERLYING-VOWEL is non-nil."
          (second-half (seq-subseq list half)))
     (cons first-half second-half)))
 
-(defun conlanging-eittlandic--make-noun-declension-from-table (root underlying-vowel table)
+(defun conlanging-eittlandic--generate-declension-from-table (root underlying-vowel table)
-  "Decline a noun ROOT (with maybe an UNDERLYING-VOWEL) with TABLE."
+  "Decline a ROOT (with maybe an UNDERLYING-VOWEL) with TABLE."
   (seq-reverse
    (let (result)
      (dolist (declension table result)
@@ -103,6 +160,79 @@ UNDERLYING-VOWEL is non-nil."
                      (cdr declension))
              result)))))
 
+                                        ; Verbs ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+(defmacro conlanging-eittlandic--build-verb-declension-org ()
+  "Just to avoid typing all of this out.
+
+ROOT, IMPERATIVE-PASSIVE, PRESENT-PARTICIPLE, PAST-PARTICIPLE,
+IND-PRES, SUBJ-PRES, PAST, and PASSIVE are all different forms of
+the verb that will be inserted in the org text."
+  `(format "Declensions:
+- infinitive :: %s
+- imperative :: %s
+- imperative passive voice :: %s
+- present participle :: %s
+- past participle :: %s
+
+|  <c>   | |            |             |      |         |
+| person | | Ind. Pres. | Subj. Pres. | Past | Passive |
+|--------+-+------------+-------------+------+---------|
+| 1s | | %s | %s | %s | %s |
+| 2s | | %s | %s | %s | %s |
+| 3s | | %s | %s | %s | %s |
+| 1p | | %s | %s | %s | %s |
+| 2p | | %s | %s | %s | %s |
+| 3p | | %s | %s | %s | %s |"
+           root root (concat root "ask") (concat root "and") (concat root "it")
+           ,@(let (accessor i)
+               (reverse (dolist (declension
+                                 '(indicative-present subjunctive-present past passive)
+                                 accessor)
+                          (setq i 0)
+                          (while (< i 6)
+                            (push `(nth ,i ,declension) accessor)
+                            (setq i (1+ i))))))))
+
+(defun conlanging-eittlandic--make-passive-verb-declension (root strength underlying-vowel passive-consonant passive-vowel)
+  "Create a verb declension for the passive mood.
+
+Generates a passive declension for a verb with its ROOT based on
+its STRENGTH and UNDERLYING-VOWEL.  If there is no underlying
+vowel for weak verbs, then the PASSIVE-VOWEL may be used instead.
+
+If the verb is a verb is a strong verb, the PASSIVE-CONSONANT
+will be used in some declensions."
+  (if (eq 'strong strength)
+      (conlanging-eittlandic--generate-declension-from-table root (or passive-vowel underlying-vowel)
+                                                             conlanging-eittlandic--strong-verb-inflexion-passive)
+    (conlanging-eittlandic--generate-declension-from-table root passive-consonant
+                                                           conlanging-eittlandic--weak-verb-inflexion-passive)))
+
+(defun conlanging-eittlandic--make-verb-declension (root strength underlying-vowel passive-consonant passive-vowel mood tense)
+  "Create a verb declension based on its MOOD and TENSE.
+
+Based on a verb’s ROOT, STRENGTH, UNDERLYING-VOWEL, and potential
+PASSIVE-CONSONANT or PASSIVE-VOWEL, create a verb’s declension as
+a list, in the following order:
+- first person singular
+- second person singular
+- third person singular
+- first person plural
+- second person plural
+- third person plural"
+  (if (eq 'passive mood)
+      (conlanging-eittlandic--make-passive-verb-declension root strength underlying-vowel passive-consonant passive-vowel)
+    (if (eq 'past tense)
+        (conlanging-eittlandic--generate-declension-from-table root underlying-vowel
+                                                               conlanging-eittlandic--generic-verb-inflexion-past)
+      (conlanging-eittlandic--generate-declension-from-table
+       root underlying-vowel
+       (if (eq 'indicative mood)
+           conlanging-eittlandic--generic-verb-inflexion-indicative-present
+         conlanging-eittlandic--generic-verb-inflexion-subjunctive-present)))))
+
+                                        ; Nouns ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
 (defun conlanging-eittlandic--make-noun-declension (root gender strength underlying-vowel &optional definite)
   "Create declensions of a word in Eittlandic.
 
@@ -117,7 +247,7 @@ list, going in the following order:
 - plural accusative
 - plural dative
 - plural genitive"
-  (conlanging-eittlandic--make-noun-declension-from-table
+  (conlanging-eittlandic--generate-declension-from-table
    root underlying-vowel
    (if definite
        (if (and (eq 'strong strength) (eq 'common gender))
@@ -144,6 +274,42 @@ list, going in the following order:
                             (push `(nth ,i ,case) accessors)
                             (setq i (1+ i))))))))
 
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;                              Public functions                              ;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;;;###autoload
+(defun conlanging-eittlandic-insert-verb-declension (root strength underlying-vowel)
+  "Insert declensions of ROOT in org format at point.
+
+Determines how to make declensions of the verb depending on its
+STRENGTH and UNDERLYING-VOWEL."
+  (interactive
+   (list
+    (read-string "Verb root: ")
+    (pcase (completing-read "Strength: " '("strong" "weak") nil t)
+      ("strong" 'strong)
+      ("weak" 'weak)
+      (other (error (format "Unknown strength: %S" other))))
+    (let ((vowel (read-string "Underlying vowel (leave blank if none): ")))
+      (if (string= "" vowel) nil vowel))))
+  (let* ((passive-consonant (when (eq 'weak strength)
+                              (completing-read "Consonant for passive declension: " '("d" "t" "ð") nil t)))
+         (passive-vowel (when (eq 'strong strength)
+                          (completing-read "Vowel for passive declension: " '("a" "i") nil t)))
+         (indicative-present (conlanging-eittlandic--make-verb-declension root strength underlying-vowel
+                                                                          passive-consonant passive-vowel
+                                                                          'indicative 'present))
+         (subjunctive-present (conlanging-eittlandic--make-verb-declension root strength underlying-vowel
+                                                                           passive-consonant passive-vowel
+                                                                           'subjunctive 'present))
+         (past (conlanging-eittlandic--make-verb-declension root strength underlying-vowel passive-consonant
+                                                            passive-vowel nil 'past))
+         (passive (conlanging-eittlandic--make-verb-declension root strength underlying-vowel
+                                                               passive-consonant passive-vowel
+                                                               'passive nil)))
+    (insert (conlanging-eittlandic--build-verb-declension-org))))
+
 ;;;###autoload
 (defun conlanging-eittlandic-insert-noun-declensions (root gender strength underlying-vowel)
   "Insert declensions of ROOT in org format at point.