🧩 Silabificador

A Portuguese syllabifier built from Portuguese phonotactics. Rule-based, dependency-free, no model to load.

📦 Features

• Syllabification for Portuguese, derived from the licit onset inventory and the diphthong/hiatus rules rather than from a table of special cases.
• Syllable structure, not just strings: onset, glide, nucleus, coda.
• The output always reconstructs the input — hyphens, spaces and apostrophes are kept, never dropped.
• No dependencies.

🚀 Installation

pip install git+https://github.com/TigreGotico/silabificador

🧠 Usage

from silabificador import syllabify

syllabify("computador")     # ['com', 'pu', 'ta', 'dor']
syllabify("guarda-chuva")   # ['guar', 'da-', 'chu', 'va']

Need the constituents rather than the strings?

from silabificador import analyze

for s in analyze("transportar"):
    print(s.onset, s.nucleus, s.coda)
# tr a ns
# p  o r
# t  a r

See docs/api.md for the full surface and docs/advanced.md for the rules and the known limits.

📊 Accuracy

Measured against the Portuguese Unified Pronunciation Lexicon, which carries syllabifications from two independent authorities — Infopédia (Porto Editora) and the Portal da Língua Portuguesa.

The gold is the set of words the two sources independently agree on (35,181), after discarding any entry whose syllables do not reconstruct its headword. It is split by content hash, and the rules were only ever tuned on the dev half:

Every one of the 116,959 scoreable words reconstructs exactly.

Where the two authorities disagree (135 words — on prefix boundaries, and on etymological hiatus) neither answer is scored against, because there is no fact of the matter to be right about.

Reproduce it, and see every remaining failure bucketed by cause:

pip install -e ".[benchmark]"
python -m benchmark.report

📄 License

MIT License