ulflib 0.0.5

A Python port of the Lisp ulflib package by Gene Kim.

Python ULF Library

Python library for interfacing with and manipulating unscoped episodic logical forms (ULF), based on the original Common Lisp implementation by Gene Kim.

Additional information can be found at the ULF project page.

Dependencies

• transduction
• memoization

Summary

Install the package using pip install ulflib.

Import the package using the following line.

from ulflib import ulflib

Documentation

Lexical match predicates

The following match functions are made available for matching individual lexical items (intended for use with the transduction package). Refer to the ULF annotation guidelines for additional details on the ULF lexical categories.

Upon importing this package, each lexical match function is registered with the transduction package and can be accessed in transduction rules using the corresponding predicates, e.g., !lex-noun-p or *lex-noun-p. The negated versions of the predicates are also registered, e.g., !not-lex-noun-p.

LEX_PREDS = [
  lex_noun_p,
  lex_rel_noun_p,
  lex_function_p,
  lex_pronoun_p,
  lex_verb_p,
  lex_adjective_p,
  lex_p_p,
  lex_p_arg_p,
  lex_ps_p,
  lex_pq_p,
  lex_prep_p,
  lex_pp_p,
  lex_mod_a_p,
  lex_mod_n_p,
  lex_mod_p,
  lex_rel_p,
  lex_det_p,
  lex_coord_p,
  lex_aux_s_p,
  lex_aux_v_p,
  lex_aux_p,
  lex_number_p,
  lex_name_p,
  lex_adv_a_p,
  lex_adv_s_p,
  lex_adv_e_p,
  lex_adv_f_p,
  lex_adv_formula_p,
  lex_adv_p,
  lex_x_p,
  lex_yn_p,
  lex_gr_p,
  lex_sent_p,
  lex_tense_p,
  lex_aspect_p,
  lex_detformer_p,
  litstring_p,
  lex_equal_p,
  lex_set_of_p,
  lex_noun_postmod_macro_p,
  lex_np_postmod_macro_p,
  lex_noun_or_np_postmod_macro_p,
  lex_macro_p,
  lex_macro_rel_hole_p,
  lex_macro_sub_hole_p,
  lex_macro_hole_p,
  lex_hole_variable_p,
  lex_verbaux_p,
  lex_pasv_p,
  lex_possessive_s_p,
  lex_invertible_verb_p,
  lex_comma_p,
  lex_elided_p,
  surface_token_p,
]

Phrasal match predicates

The following match functions are made available for matching phrasal ULF categories:

PHRASE_PREDS = [
  noun_p,
  adj_p,
  adj_premod_p,
  adj_postmod_p,
  adv_a_p,
  adv_e_p,
  adv_s_p,
  adv_f_p,
  adv_p,
  mod_a_p,
  mod_n_p,
  mod_a_former_p,
  mod_n_former_p,
  pp_p,
  term_p,
  verb_p,
  pred_p,
  det_p,
  aux_p,
  tensed_aux_p,
  tensed_verb_p,
  sent_p,
  tensed_sent_p,
  sent_punct_p,
  sent_mod_p,
  ps_p,
  noun_reifier_p,
  verb_reifier_p,
  sent_reifier_p,
  tensed_sent_reifier_p,
  advformer_p,
  detformer_p,
  modformer_p,
  preposs_macro_p,
  relativized_sent_p,
  p_arg_p,
  voc_p,
]

General match predicates

The following additional (uncategorized) match predicates are also defined:

GEN_PREDS = [
  plur_term_p,
  plur_partitive_p,
  plur_noun_p,
  plur_lex_noun_p,
  pasv_lex_verb_p,
  unknown_p,
  postmod_p,
  postmod_adj_p,
  verb_arg_p,
  verb_or_tensed_verb_p,
  sent_or_sent_mod_p,
  sent_or_tensed_sent_p,
  phrasal_sent_op_p,
  type_shifter_p,
  prog_marker_p,
  perf_marker_p,
  aux_or_head_verb_p,
  noun_or_adj_p,
  invertible_verb_or_aux_p
]

Search

The following functions can be used to search for the heads of verb phrases, noun phrases, and adjective phrases within a ULF, respectively:

find_vp_head(vp)
find_np_head(np)
find_ap_head(ap)

Additionally, the following functions find and replace the heads with some given value sub:

replace_vp_head(vp, sub)
replace_np_head(np, sub)
replace_ap_head(ap, sub)

The following match functions are also defined (mostly used internally by the above functions):

SEARCH_PREDS = [
  marked_conjugated_vp_head_p,
  vp_head_p,
  np_postmodification_head_p,
  ap_premodification_head_p,
  ap_postmodification_head_p
]

Suffix

The following functions are defined for manipulating the suffix of a ULF lexical item:

suffix_for_type(x)
"""Return the suffix for the type. If none found, return the type."""

add_suffix(word, suffix)
"""Take a word string and a suffix and merge them together."""

suffix_check(x, suffix)
"""Check if a symbol has the given suffix."""

split_by_suffix(x)
"""Split a symbol by its suffix."""

has_suffix(x)
"""Check if a symbol has a suffix."""

strip_suffix(str)
"""Strips the suffix, marked with '.', from a string, e.g., man.n -> man."""

Macro

The following top-level functions are defined for processing macros in ULFs:

add_info_to_sub_vars(ulf)
"""Add types, pluralization, etc. to the variables *h for sub macros."""

add_info_to_relativizers(ulf)
"""Add pluralization, etc. to the relativizers in relative clauses."""

apply_sub_macro(ulf, fail_on_bad_use=False)
"""Apply a sub macro."""

apply_rep_macro(ulf, fail_on_bad_use=False)
"""Apply a rep macro."""

apply_qt_attr_macro(ulf)
"""Apply a qt_attr macro."""

apply_substitution_macros(ulf)
"""Apply all substitution macros: sub, rep, qt-attr."""