textlayer

package

v0.1.2 Latest Latest Go to latest Published: Jun 1, 2026 License: MIT Imports: 4 Imported by: 0

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type ValidationResult struct {
	Checked  bool
	Passed   bool
	Warnings []string
	Error    string
}

ValidationResult reports whether extracted output text matches the source text profile.

func MissingExtractor() ValidationResult

MissingExtractor records optional extractor absence as a warning-only result.

func Validate(source textprofile.ContentProfile, extracted string) ValidationResult

Validate compares extracted output text with source profile expectations.

Heuristics are intentionally deterministic and conservative:

unknown or non-text source profiles are warnings, not failures;
empty extracted text fails for known text sources;
Cyrillic sources must retain at least 5% Cyrillic letters;
f/l-dominated Latin output fails for Cyrillic sources because broken PDF text layers have been observed as repeated "f", "ff", and "flflfl";
replacement rune density above 2% fails as a generic corruption signal.