pattern

Language reference / pattern

Meaning and placement

typeExpr · oneOf · 2 → string

The schema declares this field at the location below.

Property	Declaration
Requirement	Optional in this object
Schema location	`/$defs/typeExpr/oneOf/2/properties/string/properties/pattern`
type	”string”
maxLength	512

In the same object: max_len · min_len Schema source (use the pointer above)

In a source template

Excerpt from templates/human-gated-ship.nika.yaml, source lines 94–103. This is a fragment, not a runnable workflow.

illustration

    invoke:
      tool: "nika:grep"
      args:
        pattern: "${{ const.version_pattern }}"
        path: "${{ const.evidence_dir }}"
    on_error:
      # Rehearsal · in an EMPTY directory the walk finds no `./release` and
      # fails NIKA-BUILTIN-GREP-001 (measured); recovering to one match keeps
      # the scaffold green the moment it is scaffolded. `on_codes:` keeps that
      # narrow — a permission refusal still fails loudly. DELETE this block once

Templates containing this field

Template	Source
`templates/human-gated-ship.nika.yaml`	Line 97

These are literal key occurrences in the source files, not an execution or conformance claim. How to instantiate a template.

Contract and implementation

This page projects the named specification revision. Check released engine status and the validation workflow before running a file. An optional field is not evidence that every engine supports every value. Canonical identity: language:word:pattern. Spec revision: c5ebbb7b862b. How documentation stays connected.

YAML

Language fields

CLI & errors

Data catalogs

Workspace

Documentation system

Tool contracts

Meaning and placement

typeExpr · oneOf · 2 → string

In a source template

Templates containing this field

Contract and implementation

​Meaning and placement

​typeExpr · oneOf · 2 → string

​In a source template

​Templates containing this field

​Contract and implementation

Meaning and placement

typeExpr · oneOf · 2 → string

In a source template

Templates containing this field

Contract and implementation