Grew releases

The version numbers x.y.z are synchronised such that x and y are identical for sub-projects. The third component z is linked to bug fixes and may vary across sub-projects.
- grewlib → the Grew library, used in all other sub-projects
- grew → the command line interface of Grew
The symbol “⚠️” indicates changes that may break backward compatibility. Check GRS upgrading.
More detailed information in files CHANGES.md for each sub-project: grewlib, grew.

🆕 Version 1.15 (January 2, 2024)

compatible with Ocaml 5
Fix bug in Graph.to_json

Version 1.14 (November 11, 2023)

add disjunction in Node definition (see here)
Optimise request representation

Version 1.13 (September 16, 2023)

Change type of cluster_key

Version 1.12 (March 24, 2023)

⚠️ library is renamed grewlib (old name was libcaml-grew)
use dune build system

Version 1.11.0 (January 22, 2023)

⚠️ Add syntax for positive filtering using the with keyword. See Request page (NB: this may break an existing GRS which uses the identifier with for a rule, a pacakge or a strategy).
Add handling of non-injective matching

Version 1.10.0 (November 23, 2022)

Remove handling of Gr graph format. Please use json format
Review input corpus handling (see Command Line Interface)

Version 1.9.0 (June 29, 2022)

update Conll handling (synchronized with libcaml-conll 1.13)
minors bug fixes

Version 1.8.0 (December 15, 2021)

Add command prepend_feats (doc)
Add Python style string slicing (doc)
Add several functions for other tools (ArboratorGrew, Grew-web…)

Version 1.7.0 (September 20, 2021)

Add syntax with regexp in node declaration

Version 1.6.1 (May 22, 2021)

add new commands unorder and insert (⚠️ in old GRS which used unorder or insert as identifier, a renaming in needed)
add -multi_json argument (see Graph output formats)

Version 1.6 (May 5, 2021)

⚠️ stop backward compatibility with old feature names pos, cat and phon (see CoNNL-U)
add -columns argument (see CoNNL-U Plus)
fix invalid json output if there is more than one output graph

Version 1.5 (March 16, 2021)

Change JSON encoding of graphs (see JSON format)

Version 1.4 (October 2, 2020)

change pattern syntax (see GRS upgrading)
add new syntax for constraints in pattern syntax (see patterns page)
new implementation of Conll-U handling
configs replace the deprecated notion of domains

⚠️ the tool grew_gui is obsolete and not maintained. It relies on old libraries which are not available on recent version of OSes.

Version 1.3 (June 24, 2019)

Add support of “@alpha” extension in edges
Add a default “empty.grs”
Read from stdin if there is no -i, write to stdout if there is no -o

Version 1.2 (March 26, 2019)

Edge label can be viewed as feature structure “x:y” <=> “1=x, 2=y”
Add global section in pattern (is_projective, is_cyclic, is_tree, is_forest)
Add ?get_url parameter to Graph.to_dot (AMR handling in Grew-match)
Add a notion of pivot node in pattern for Grew-match export
Add Libgrew.set_track_rules function

Version 1.1 (November 23, 2018)

More general definition of pattern edges (String are available everywhere)
Update to new MWE types (with projection information)

Version 1.0 (September 10, 2018)

⚠️ Change lexical rules syntax and lexicon representation (See About new lexical rules syntax)
Handling of Parseme’s column 11
Large code cleaning
Fix #4 & #5

Version 0.48 (June 19, 2018)

remove conll_fields mechanism (names of conll fields 2, 4 and 5 are form, upos, xpos). See here for more information.

Version 0.47 (March 13, 2018)

Add grewpy executable for Python library
-safe_commands option

Version 0.46 (December 14, 2017)

GTK interface is proposed as a separate package and so Grew without GUI is much more easy to install
Command line arguments were revisited (see here)

More detailed information in files CHANGES.md for each sub-project: libcaml-grew, grew, grew_gui

Version 0.45 (October 10, 2017)

features structures given in column 10 of CoNLL are kept in the output
⚠️ new grs syntax (grs) is required; old syntax can be used with the command line argument -old_grs
⚠️ in patterns, implicit node declaration is available only for nodes in edge (see below)

Implicit nodes in version 0.45

In pattern, you can refer only to nodes which are explicitely declared or declared in a edge declaration. The following patterns used to be valid (with a implicit declaration of node M), but there are not anymore

pattern { N[cat=NOUN]; M < N }
pattern { N[cat=NOUN]; M.cat = VERB }
pattern { N[cat=NOUN]; M -[obj]-> * }

They have to be replaced by, respectively:

pattern { N[cat=NOUN]; M[]; M < N }
pattern { N[cat=NOUN]; M[]; M.cat = VERB }
pattern { N[cat=NOUN]; M[]; M -[obj]-> * }

But it is still possible to write

pattern { N[cat=NOUN]; N -[obj]-> M }

Version 0.44 (September 05, 2017)

⚠️ new grs syntax (with package and strategies), see grs.

Version 0.43 (May 23, 2017)

Syntax changes

The syntax changes below make existing Grew code to be deprecated. The old syntax is still accepted but for a limited amount of time, please update your existing GRS system soon.

⚠️ the keyword confluent is replaced by the keyword deterministic (it was confusing to use the keyword “confluent” with modules which are not confluent).
⚠️ the keyword match is replaced by the keyword pattern.

Command actions

⚠️ the shift command semantics: edges with source and target nodes in the pattern are not concerned by the shifts
New syntax is available for the command add_edge (issue #2).

Removed old stuff

⚠️ old syntax for node addition is no longer supported:

add_node PRO: <-[obj.p]- PREP;

must be replaced by the sequence of two commands:

add_node PRO :> PREP;
add_edge PREP -[obj.p]-> PRO;