Corpus Query Langauge Subset

Parse Corpus Query Language into a list of queries in JSON format.

Installation

pip install cqls

Usage

>>> import cqls
>>> cql = '''
... "我" [pos="V."]+
... '''
>>> cqls.parse(cql, default_attr="word", max_quant=5)
[
  [{'match': {'word': ['我']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}], 
  [{'match': {'word': ['我']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}], 
  [{'match': {'word': ['我']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}], 
  [{'match': {'word': ['我']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}], 
  [{'match': {'word': ['我']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}, {'match': {'pos': ['V.']}, 'not_match': {}}]
]

Supported CQL features

• token: [], "我", [word="我"], [word!="我" & pos="N.*"]
• token-level quantifier: +, *, ?, {n,m}
• grouping: ("a" "b"? "c"){1,2}
• label: lab1:[word="我" & pos="N.*"] lab2:("a" "b")