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Option Prefix Ambiguity Table

Inventory exact long-option prefix candidates and ambiguities under an explicit option-name bank; no abbreviation acceptance policy.

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Description

Inventory exact long-option prefix candidates and ambiguities under an explicit option-name bank; no abbreviation acceptance policy.

An argv vector already consists of literal argument strings. Shell quoting and tokenization happen before this representation; joining argv elements with spaces does not reconstruct a safe command string. Option aliases, duplicates, arity and dependencies are application policies that these tools take explicitly.

Inventory exact long-option prefix candidates and ambiguities under an explicit option-name bank; no abbreviation acceptance policy.

When to use this tool

Use this tool to inventory exact long-option prefix candidates and ambiguities under an explicit option-name bank; no abbreviation acceptance policy.

How to use the tool and how it works

  1. Enter prefixes, options using the input definitions below.
  2. Run the operation. Resolve malformed-input errors before interpreting the result.
  3. Read result.matches. Interpret signs, units, ordering and null values using the rules below.

Require distinct option-bank strings and nonempty prefixes. For each prefix return every case-sensitive startsWith match in bank order and ambiguous = matchCount>1.1

Input fieldMeaning and unitsAccepted input
prefixesNonempty exact prefixes to look up in the supplied option bank.Dense list of at most 128 strings, each at most 8,192 UTF-16 code units.
optionsDistinct case-sensitive option-bank strings, in candidate order.Dense list of at most 128 strings, each at most 8,192 UTF-16 code units.
Output fieldInterpretation
resultObject containing the fields below.
result.matchesOne prefix record per input, with bank-ordered matches and ambiguity flag.
json
{
  "input": {
    "prefixes": [
      "ver",
      "v"
    ],
    "options": [
      "version",
      "verbose",
      "quiet"
    ]
  },
  "output": {
    "result": {
      "matches": [
        {
          "prefix": "ver",
          "options": [
            "version",
            "verbose"
          ],
          "ambiguous": true
        },
        {
          "prefix": "v",
          "options": [
            "version",
            "verbose"
          ],
          "ambiguous": true
        }
      ]
    }
  }
}

Limitations and assumptions

  • The bank strings are caller-defined; a single candidate does not automatically authorize abbreviated option syntax.
  • Inputs are literal tokens or explicit records. The restricted long-name grammar is [A-Za-z0-9][A-Za-z0-9-]* where required. No universal option syntax, shell semantics or process execution is inferred.
  • Every declared top-level input is required and unknown fields are rejected. Ordinary strings are limited to 8,192 UTF-16 code units and lists to 128 entries, with tighter operation-specific bounds where stated. JSON text has bounded nesting and node counts.
  • Numeric outputs must be finite and within the absolute safe-integer magnitude; exact larger integers use decimal text. Source positions are zero-based UTF-16 offsets and span ends are exclusive unless a different convention is explicitly stated.

Alternative or Complementary methods

Use the application’s option schema to choose arity, aliases and conflict policy. Pass a literal argv vector to the intended process interface; shell command construction requires separate quoting rules.

References

  1. Tool behavior and example: Option Prefix Ambiguity Table — tool.io

Similar or alternative tools

  • Long Option Assignment Joiner

    Format one literal long-option argv token under a restricted ASCII option-name grammar; returns one argument, not shell quoting.

  • Long Option Assignment Splitter

    Split one strict ASCII --long-name[=value] argv token at the first equals; no shell parsing or implicit next-token consumption.