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Crochet — Pattern Program

| Format | Use case | Implementation notes | |--------|----------|----------------------| | | Quick printing, forum sharing | Use monospaced font, line breaks every 10-20 sts | | HTML/CSS | Web display, mobile reading | Responsive design, collapsible sections | | PDF | Professional distribution | Use libraries like ReportLab (Python) or jsPDF (JS) | | CSV | Import into spreadsheet trackers | Rows as records, columns: Row#, Instruction, Stitch count | | Chart symbols | Visual crochet charts | Map stitches to symbols (X for sc, T for hdc) using SVG or Unicode |

"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: | Format | Use case | Implementation notes

def calculate_starting_chain(desired_width_in, gauge_stitches_per_4in): return int((desired_width_in / 4) * gauge_stitches_per_4in) Also compute row count for vertical measurements: rows_needed = (desired_height_in / 4) * gauge_rows_per_4in forum sharing | Use monospaced font

| Format | Use case | Implementation notes | |--------|----------|----------------------| | | Quick printing, forum sharing | Use monospaced font, line breaks every 10-20 sts | | HTML/CSS | Web display, mobile reading | Responsive design, collapsible sections | | PDF | Professional distribution | Use libraries like ReportLab (Python) or jsPDF (JS) | | CSV | Import into spreadsheet trackers | Rows as records, columns: Row#, Instruction, Stitch count | | Chart symbols | Visual crochet charts | Map stitches to symbols (X for sc, T for hdc) using SVG or Unicode |

"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"

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:

def calculate_starting_chain(desired_width_in, gauge_stitches_per_4in): return int((desired_width_in / 4) * gauge_stitches_per_4in) Also compute row count for vertical measurements: rows_needed = (desired_height_in / 4) * gauge_rows_per_4in