"pattern_id": "bean_001", "name": "Simple Beanie", "difficulty": "beginner", "yarn_weight": "worsted", "hook_mm": 5.0, "gauge": "stitch": "sc", "stitches_per_4in": 16, "rows_per_4in": 20 , "sizes": "baby": "head_circumference_in": 16, "starting_ch": 40 , "adult": "head_circumference_in": 22, "starting_ch": 56 , "instructions": [ "step": 1, "text": "Ch starting_ch, join in round", "repeat": null , "step": 2, "text": "Round 1: sc in each ch around", "repeat": null , "step": 3, "text": "Round 2: [sc 2, inc] around", "repeat": "until diameter = 6\"" ]
"stitch_id": "sc", "name": "single crochet", "abbreviation_us": "sc", "abbreviation_uk": "dc", "height_rows": 1, "width_stitches": 1, "requires_yarn_over": true, "insertion_point": "both_loops" Crochet Pattern Program
Store user-generated patterns separately from system library. This is the heart of the program. Three main approaches: A. Template-based generation Use string templates with placeholders. Example template: "name": "Simple Beanie"