Phonex
- Introduction
- Language Reference
  - Phone Matchers
    Type of matchers available in phonex.
  - Boundaries
    Description of special boundary matchers.
  - Quantifiers
    Description of phonex quantifiers.
  - Groups
  - Syllable Matcher
  - Comments
  - Aligned Phonex
  - Phonex Constructs
    A summary of all possible phonex constructs.
  - Supplementary Matchers
    - Overview
      Supplementary matchers in phonex.
    - stress
      Description of the phonex stress supplementary matcher.
    - sctype
      Description of the phonex sctype supplementary matcher.
    - diacritic
      Description of the phonex diacritic supplementary matcher.
    - prefix
      Description of the prefix supplementary matcher.
    - suffix
      Description of the suffix supplementary matcher.
    - comb
      Description of the comb supplementary matcher.
    - tn (tone number)
      Description of the tn supplementary matcher.
    - mdc (minimum distance constraint)
      Description of the mdc supplementary matcher.
- Examples

mdc (minimum distance constraint)

Description of the mdc supplementary matcher.

The mdc supplementary matcher tests the sonority distance between the current phone and its neighbour. It is used primarily by the syllabifier to determine valid onset and coda clusters based on the Sonority Sequencing Principle.

The matcher accepts two parameters:

distance — a number specifying the minimum sonority distance. Positive values indicate rising sonority, negative values indicate falling sonority.
allowFlat — "true" or "false". When true, a sonority distance of 0 (flat) is permitted.

Search for an onset consonant with a sonority distance of at least 2, flat not allowed:

\c:O:mdc("2","false")

Search for a coda element with falling sonority (distance at most -1):

.:C:mdc("-1","false")