Migrate from otfinfo

This guide helps you migrate from otfinfo (lcdf-typetools) to Fontisan.

Overview

otfinfo is part of the lcdf-typetools suite. Fontisan provides equivalent functionality with additional features.

Command Equivalents

Font Information

otfinfo	Fontisan
otfinfo -i font.ttf	fontisan info font.ttf
otfinfo --info font.ttf	fontisan info font.ttf

Script Information

otfinfo	Fontisan
otfinfo -s font.ttf	fontisan info font.ttf --features
otfinfo --scripts font.ttf	fontisan info font.ttf --features

Feature Information

otfinfo	Fontisan
otfinfo -f font.ttf	fontisan info font.ttf --features
otfinfo --features font.ttf	fontisan info font.ttf --features

Glyph Information

otfinfo	Fontisan
otfinfo -g font.ttf	fontisan info font.ttf --glyphs
otfinfo --glyphs font.ttf	fontisan info font.ttf --glyphs

Unicode Coverage

otfinfo	Fontisan
otfinfo -u font.ttf	fontisan info font.ttf --unicode
otfinfo --unicode font.ttf	fontisan info font.ttf --unicode

Table Information

otfinfo	Fontisan
otfinfo -t font.ttf	fontisan info font.ttf --tables
otfinfo --tables font.ttf	fontisan info font.ttf --tables

Output Comparison

Font Information

otfinfo:

Family:              Example
Subfamily:           Regular
Full name:           Example Regular
PostScript name:     Example-Regular
Version:             1.000

Fontisan:

Font: font.ttf
Format: TrueType
Family: Example
Style: Regular
PostScript: Example-Regular
Version: 1.000
Glyphs: 268
Tables: 14

Unicode Coverage

otfinfo:

U+0020..U+007E Basic Latin
U+00A0..U+00FF Latin-1 Supplement

Fontisan:

Unicode Coverage:
  Basic Latin (U+0020-U+007E)
  Latin-1 Supplement (U+00A0-U+00FF)

Additional Features

Fontisan provides features not available in otfinfo:

Validation

# Not available in otfinfo
fontisan validate font.ttf --profile production

Conversion

# Not available in otfinfo
fontisan convert font.ttf --to otf --output font.otf

Subsetting

# Not available in otfinfo
fontisan subset font.ttf --chars "ABC" --output subset.ttf

Collection Support

# Limited in otfinfo
fontisan ls family.ttc
fontisan unpack family.ttc --output-dir ./extracted

Multiple Output Formats

# otfinfo: text only
# Fontisan: text, YAML, JSON

fontisan info font.ttf --format yaml
fontisan info font.ttf --format json

Feature Comparison

Feature	otfinfo	Fontisan
Font info	✅	✅
Script info	✅	✅
Feature info	✅	✅
Glyph info	✅	✅
Unicode info	✅	✅
Table info	✅	✅
Validation	❌	✅
Conversion	❌	✅
Subsetting	❌	✅
Collections	Limited	✅
YAML/JSON	❌	✅
Pure Ruby	❌ (C++)	✅

Migration Example

Before (otfinfo)

# Get family name
family=$(otfinfo -i font.ttf | grep Family | cut -d: -f2 | xargs)
echo "Family: $family"

# Check for specific feature
if otfinfo -f font.ttf | grep -q "liga"; then
  echo "Has ligatures"
fi

After (Fontisan)

# Get family name (JSON output)
family=$(fontisan info font.ttf --format json | jq -r '.family')
echo "Family: $family"

# Check for specific feature
if fontisan info font.ttf --features | grep -q "liga"; then
  echo "Has ligatures"
fi

Advantages of Fontisan

1. Pure Ruby — No C++ compilation required
2. More features — Validation, conversion, subsetting
3. Better output — YAML and JSON formats
4. Collection support — Full TTC/OTC handling
5. Validation — Comprehensive font checking

Getting Help

• Fontisan Guide
• CLI Reference
• GitHub Issues