better function, with less noisy trees
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Phuntsok Drak-pa
parent
145a35c008
commit
2a5a085f9d
2
.gitignore
vendored
2
.gitignore
vendored
@ -1,2 +1,4 @@
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*.png
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*.dot
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*.svg
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phonetics-feature-tree
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@ -1,126 +1,120 @@
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(define (left-child tree)
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(cadr tree))
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(define (left-child-name tree)
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(car (left-child tree)))
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(define (right-child tree)
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(caddr tree))
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(define (right-child-name tree)
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(car (right-child tree)))
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(define (cur-name tree)
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(car tree))
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(define test-tree
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'("1"
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("1-1"
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("1-1-1"
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("1-1-1-1")
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("1-1-1-2"))
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("1-1-2"
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("1-1-2-1"
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("1-1-2-1-1")
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("1-1-2-1-2")
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("1-1-2-1-3")
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("1-1-2-1-4")))
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("1-1-3"
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("1-1-3-1"
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("1-1-3-1-1")
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("1-1-3-1-2"))))))
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(define (to-string phon-tree node-nbr child next-nbr)
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(let ((this-name (string-append "node"
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(number->string node-nbr)))
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(child-name (string-append "node"
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(number->string next-nbr))))
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(string-append child-name
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(define (declare-node node-text node-generation)
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(string-append ;; "node"
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(number->string node-generation)
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"[label=\""
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(cur-name child)
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"\"];"
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this-name
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"--"
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child-name
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";\n"
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(to-dot-main child next-nbr))))
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node-text
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"\"];\n"))
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(define (to-dot-main phon-tree node-nbr)
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(let* ((this-name (string-append (number->string node-nbr)
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"node")))
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(if (null? (left-child phon-tree))
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""
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(let ((x (* 2 (+ 1 node-nbr)))
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(y (* 2 (+ 2 node-nbr))))
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(string-append (to-string phon-tree node-nbr
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(left-child phon-tree)
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x)
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(to-string phon-tree node-nbr
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(right-child phon-tree)
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y))))))
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(define (make-link previous-node current-node)
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(string-append ;; "node"
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(number->string previous-node)
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" -- "
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;; "node"
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(number->string current-node)
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";\n"))
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(define (to-dot phon-tree)
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(if (null? phon-tree)
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"\n"
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(define (tree-to-dot-helper tree current-generation previous-generation)
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;; Helper to ~tree-to-dot~ that translates a Scheme tree with any number of
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;; children per node to a corresponding graphviz file that can be executed from
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;; dot.
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;; Arguments:
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;; - tree :: tree to convert
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;; - current-generation :: Generation number, incremented when changing from a node
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;; to another node from the same generation, multiplied by 10 when going from
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;; a node to one of its children.
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;; - previous-generation :: Generation number from previous named node
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(cond ((null? tree) "")
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((atom? (car tree)) ;; '("text" () () ())
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(string-append (declare-node (car tree) current-generation)
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(make-link previous-generation current-generation)
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(tree-to-dot-helper (cdr tree)
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(+ 1 (* 10 current-generation))
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current-generation)))
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((list? (car tree)) ;; '(() () () ())
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(string-append (tree-to-dot-helper (car tree) ;; child of current node
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current-generation
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previous-generation)
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(tree-to-dot-helper (cdr tree) ;; sibling of current node
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(+ 1 current-generation)
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previous-generation)))))
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(define (tree-to-dot tree)
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;; Returns a graphviz’s dot-compatible string representing a Scheme tree
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(if (null? tree) ""
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(string-append
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"graph{\n"
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"node[shape=plaintext];\n"
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"graph[bgcolor=\"transparent\"];\n"
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"node1[label=\""
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(cur-name phon-tree)
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"\"];\n"
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(to-dot-main phon-tree 1)
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"graph{node[shape=plaintext];graph[bgcolor=\"transparent\"];\n"
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(declare-node (car tree) 0)
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(tree-to-dot-helper (cdr tree) 1 0)
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"}")))
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(define vowel-tree
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'("[vowel]"
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("[back]"
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("[tense]" () ())
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("{tense}" () ()))
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("{back}"
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("[rnd]"
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("[tense]" () ())
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("{tense}"
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("[high]" ())
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("{high}" ())))
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("{rnd}"
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("[tense]"
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("[high]" () ())
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("{high}" () ()))
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("[high]")
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("{high}"))
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("{tense}"
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("[low]" () ())
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("{low}" () ()))))))
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(define vowel2-tree
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'("[vowel]"
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("[back]"
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("[tense]"
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("[high]" () ())
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("{high}" () ()))
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("{tense}"
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("[high]" () ())
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("{high}" () ())))
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("[high]")
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("{high}")))
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("{back}"
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("[tense]"
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("[high]" () ())
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("{high}" () ()))
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("[high]")
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("{high}"))
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("{tense}"
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("[high]" () ())
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("{high}" () ())))))
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("[high]")
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("{high}")))))
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(define cons-tree
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'("[cons]"
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("[son]"
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("[dor]"
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("[high]" () ())
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("{high}" () ()))
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("[high]")
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("{high}"))
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("{dor}"
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("[cor]" () ())
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("{cor}" () ())))
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("[cor]")
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("{cor}")))
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("{son}"
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("[dor]"
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("[voice]"
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("[high]" () ())
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("{high}" () ()))
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("[high]")
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("{high}"))
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("{voice}"
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("[high]" () ())
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("{high}" () ())))
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("[high]")
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("{high}")))
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("{dor}"
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("[voice]"
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("[cor]" () ())
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("{cor}" () ()))
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("[cor]")
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("{cor}"))
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("{voice}"
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("[cor]" () ())
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("{cor}" () ()))))))
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("[cor]")
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("{cor}"))))))
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(define verbs
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'("[verbs]"
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("[réel]"
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("[passé]" () ())
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("{passé}" () ()))
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("[passé]")
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("{passé}"))
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("{réel}"
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("[optatif]" () ())
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("[optatif]")
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("{optatif}"
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("[passé]" () ())
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("{passé}" () ())))))
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("[passé]")
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("{passé}")))))
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(display (to-dot verbs)) (newline)
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(display (tree-to-dot vowel-tree))
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