LatinLanguageAnalyzer class - text_analysis library

Constructors

LatinLanguageAnalyzer(): Initializes a const LatinLanguageAnalyzer.
const

Properties

characterFilter → AsyncTermModifier: A function that filters out unwanted characters or replaces them with other characters.
read-only, inherited
hashCode → int: The hash code for this object.
read-only, inherited
jsonTokenizer → JsonTokenizer: Extracts tokens from the fields in a JSON document for use in full-text search queries and indexes.
read-only, override
nGrammer → NGrammer: A language-specific function that generates n-grams from text.
read-only, override
paragraphSplitter → TextSplitter: Returns a list of paragraphs from text.
read-only, override
phraseSplitter → PhraseSplitter: Returns a list of keywords from text.
read-only, override
runtimeType → Type: A representation of the runtime type of the object.
read-only, inherited
sentenceSplitter → TextSplitter: Returns a list of sentences from text.
read-only, override
stemmer → TermModifier: Language-specific function that returns the stem of a term.
read-only, inherited
syllableCounter → SyllableCounter: Returns the number of syllables in a string after stripping out all white-space and punctuation.
read-only, override
termExceptions → Map<String, String>: A map of term exceptions
read-only, inherited
termExpander → TermExpander?: Expands text to a collection of related Strings, e.g. synonyms, abbreviations or spelling suggestions.
read-only, inherited
termFilter → AsyncTermModifier: A filter function that returns a modified term or null.
read-only, override
termSplitter → TextSplitter: Returns a list of words from text.
read-only, override
tokenizer → Tokenizer: Extracts one or more tokens from text for use in full-text search queries and indexes.
read-only, override

Methods

asNumber(String term) → num?: Attempts to parse the term to a number. Returns null if the term does not represent a number, amount or percentage
inherited
isStopword(String term) → bool: Returns true if the term is a stopword excluded from tokenization.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed.
inherited
toString() → String: A string representation of this object.
inherited

Operators

operator ==(Object other) → bool: The equality operator.
inherited

Static Methods

isHashtag(String term) → bool: Returns true if the String starts with "@" or "#" followed by one or more word-chacters only.
isHyphenated(String term) → bool: Returns true if the term contains one or more hyphens.
isNumber(String term) → bool: Returns true if the String contains digits and delimiters (periods or commas) where delimiters are not at the start or end of the String.
isNumberOrAmount(String term) → bool: Returns true if the String contains digits and delimiters (periods or commas) where delimiters are not at the start or end of the String.
replaceHyphens(String term, [String replace = ' ']) → String: Replaces all hyphenations with replace.

Constants

kHypenations → const String: Selector for single hyphen characters preceded and followed by a word boundary.
r'(?<=\b)-{1}(?=\b)'
kSentenceDelimiter → const String: The delimiter inserted at sentence endings to allow splitting of the text into sentences.
r'%~%'
rBracketsAndCarets → const String: Matches all brackets and carets.
r'[\[\]\{\}\<\>]'
rEnclosingQuotes → const String: Selector for enclosing quote marks.
'(?<=^|$rNonWordChars)$rQuotes+|$rQuotes+(?=$rEndString|$rNonWordChars)'
rEndString → const String: Selects the end of a string.
r'\Z'
rHashtag → const String: Selects text that starts with "@" or "#" followed by one or more word-chacters only.
r'(?<=^)[#@]{1}(\w)+(?=$)'
rHashtags → const String: Selects text that starts with "@" or "#" and is preceded or followed by non-word characters or the start/end of the String.
r'(?<=^|\W)[#@]{1}(\w)+(?=\W|$)'
rLineEndingSelector → const String: Matches all line endings.
'[\u000A\u000B\u000C\u000D]+'
rNonWordChars → const String: Matches al characters except:
r"[^a-zA-Z0-9À-öø-ÿ¥Œ€@™#-\&_'-]"
rNumber → const String: Matches a String that includes digits and delimiters (periods and commas) where delimiters are not at the start or end of the string
r'(?<=^)(\d|((?<=\d)[,.]{1}(?=\d)))+(?=$)'
rNumbers → const String: Matches all numbers, including those delimited with periods and or commas.
r'(?<=^|\W)(\d|((?<=\d)[,.]{1}(?=\d)))+(?=$|\W)'
rNumbersAndAmounts → const String: Matches all numbers and amounts, including:
r'(?<=^|\s)([$€£¥₣₹ك]{1}|[A-Z]{3})?(\d+|' r'((?<=\d)[,.]{1}(?=\d)))+([%]{1})?(?=$|\W)'
rPhraseDelimiterSelector → const String: Matches strings where text is split for keywording:
r'[\r\n]+|[\!:;,\-—."\' r"'}\)\]]+\W+|\W+[\!:;,\-—." r'"\' r"'}\)\]\(\[\{]+|\W(?=$)|(?<=^)\W"
rQuotes → const String: Selector for all single or double quotation marks and apostrophes.
'[\'"“”„‟’‘‛]'
rSentenceEndingSelector → const String: Matches all sentence endings.
'(?<=$rWordChars|\\s)(\\. )(?=([^a-z])|\\s+|\$)|(\\.)(?=\$)|' '(?<=[^([{])([?!])(?=([^)]}])|\\s+|\$)'
rWordChars → const String: Matches characters used to write words, including:
r"[a-zA-Z0-9À-öø-ÿ¥Œ€@™#-\&_'-]"

LatinLanguageAnalyzer class Null safety

Constructors

Properties

Methods

Operators

Static Methods

Constants

text_analysis library