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chore: update section IDs and add table formatting utilities

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Section ID Updates:
- Updated section identifiers across multiple chapters for consistency
- Modified section references in conclusion, introduction, ai_for_good, efficient_ai, hw_acceleration, benchmarking, and ml_systems chapters
- Fixed broken Bitter Lesson reference in efficient_ai chapter

Quiz Updates:
- Updated quiz section references in emerging_topics_quizzes.json, frontiers_quizzes.json, and ml_systems_quizzes.json to match new section IDs

New Utilities:
- Added format_tables.py: Python utility for formatting Quarto markdown tables
- Added test_format_tables.py: Test suite for table formatting utility

These changes maintain cross-reference consistency after recent chapter reorganization.
This commit is contained in:
Vijay Janapa Reddi
2025-10-06 13:04:07 -04:00
parent f619ea7672
commit c4755bfc82
12 changed files with 1046 additions and 149 deletions
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#!/usr/bin/env python3
"""
Table Formatter for MLSysBook
This script formats markdown grid tables to ensure:
1. All column headers (first row) are bolded
2. All first column entries are bolded
3. Column widths are properly calculated based on content
4. Alignment bars match the actual column widths
5. Content is left-aligned within cells
Usage:
python format_tables.py --check <file> # Check if tables are formatted correctly
python format_tables.py --fix <file> # Format tables in place
python format_tables.py --check-all # Check all .qmd files in contents/core
python format_tables.py --fix-all # Format all .qmd files in contents/core
"""
import argparse
import re
import sys
from pathlib import Path
from typing import List, Tuple, Optional
import unicodedata
def display_width(text: str) -> int:
"""
Calculate the display width of text, accounting for Unicode characters.
Bold markers (**text**) are not counted in display width.
East Asian Wide and Fullwidth characters count as 2.
"""
# Remove bold markers for width calculation
text = text.replace('**', '')
width = 0
for char in text:
if unicodedata.east_asian_width(char) in ('F', 'W'):
width += 2
else:
width += 1
return width
def parse_table(lines: List[str]) -> Optional[dict]:
"""
Parse a markdown grid table into structured data.
Returns:
dict with 'start_line', 'end_line', 'header', 'separator', 'rows', 'caption'
or None if not a valid table
"""
if not lines or not lines[0].startswith('+'):
return None
table_data = {
'start_line': 0,
'end_line': 0,
'header_border': '',
'header': '',
'separator': '',
'rows': [],
'footer_border': '',
'caption': ''
}
i = 0
# First line should be top border
if not lines[i].startswith('+'):
return None
table_data['header_border'] = lines[i]
i += 1
# Next should be header row
if i >= len(lines) or not lines[i].startswith('|'):
return None
table_data['header'] = lines[i]
i += 1
# Next should be separator with := for alignment
if i >= len(lines) or not lines[i].startswith('+'):
return None
table_data['separator'] = lines[i]
i += 1
# Parse data rows
while i < len(lines):
line = lines[i]
if line.startswith('|'):
table_data['rows'].append(line)
i += 1
elif line.startswith('+'):
# Row separator or footer
if i + 1 < len(lines) and lines[i + 1].startswith('|'):
# This is a row separator, include it with the row
table_data['rows'].append(line)
i += 1
else:
# This is the footer border
table_data['footer_border'] = line
i += 1
break
else:
break
# Check for caption (starts with : after table)
if i < len(lines) and lines[i].strip().startswith(':'):
table_data['caption'] = lines[i]
i += 1
table_data['end_line'] = i
return table_data
def parse_row(row: str) -> List[str]:
"""Parse a table row into individual cell contents."""
# Remove leading and trailing pipes
row = row.strip()
if row.startswith('|'):
row = row[1:]
if row.endswith('|'):
row = row[:-1]
# Split by pipes and strip whitespace
cells = [cell.strip() for cell in row.split('|')]
return cells
def bold_text(text: str) -> str:
"""Add bold markers to text if not already bolded. Returns empty string if text is empty."""
text = text.strip()
# Don't bold empty strings
if not text:
return ''
# Don't double-bold
if text.startswith('**') and text.endswith('**'):
return text
return f"**{text}**"
def is_bolded(text: str) -> bool:
"""Check if text is already bolded."""
text = text.strip()
return text.startswith('**') and text.endswith('**')
def calculate_column_widths(header: str, rows: List[str]) -> List[int]:
"""
Calculate the width needed for each column based on content.
Returns list of widths for each column.
"""
# Parse all rows to get cell contents
all_rows = [parse_row(header)]
for row in rows:
if row.startswith('|'):
all_rows.append(parse_row(row))
# Find number of columns
num_cols = len(all_rows[0])
# Calculate max width for each column
widths = [0] * num_cols
for row in all_rows:
for col_idx, cell in enumerate(row):
if col_idx < num_cols:
width = display_width(cell)
widths[col_idx] = max(widths[col_idx], width)
return widths
def extract_alignment(separator: str) -> List[str]:
"""
Extract alignment information from separator line.
Returns list of alignments: 'left', 'center', or 'right'
"""
# Split by + to get each column separator
parts = separator.split('+')[1:-1] # Remove empty first and last
alignments = []
for part in parts:
part = part.strip()
if part.startswith(':') and part.endswith(':'):
alignments.append('center')
elif part.startswith(':'):
alignments.append('left')
elif part.endswith(':'):
alignments.append('right')
else:
alignments.append('left') # Default
return alignments
def build_border(widths: List[int]) -> str:
"""Build a border line like +----+----+----+"""
parts = ['-' * (w + 2) for w in widths] # +2 for spaces around content
return '+' + '+'.join(parts) + '+'
def build_separator(widths: List[int], alignments: List[str]) -> str:
"""Build separator line like +:===+:===:+====:+"""
parts = []
for width, align in zip(widths, alignments):
if align == 'center':
parts.append(':' + '=' * width + ':')
elif align == 'left':
parts.append(':' + '=' * width)
elif align == 'right':
parts.append('=' * width + ':')
else:
parts.append('=' * width)
return '+' + '+'.join(parts) + '+'
def format_cell(content: str, width: int, alignment: str = 'left') -> str:
"""
Format cell content to fit within the specified width.
Pads content to match width, accounting for display width.
"""
content = content.strip()
display_w = display_width(content)
padding_needed = width - display_w
if alignment == 'center':
left_pad = padding_needed // 2
right_pad = padding_needed - left_pad
return ' ' * left_pad + content + ' ' * right_pad
elif alignment == 'right':
return ' ' * padding_needed + content
else: # left
return content + ' ' * padding_needed
def format_row(cells: List[str], widths: List[int], alignments: List[str], bold_first: bool = False) -> str:
"""Format a row with proper cell widths and optional bolding of first column."""
formatted_cells = []
for idx, (cell, width, align) in enumerate(zip(cells, widths, alignments)):
# Bold first column if requested
if idx == 0 and bold_first and not is_bolded(cell):
cell = bold_text(cell)
formatted = format_cell(cell, width, align)
formatted_cells.append(formatted)
return '| ' + ' | '.join(formatted_cells) + ' |'
def format_table(table_data: dict) -> List[str]:
"""
Format a complete table with proper bolding and column widths.
Returns formatted table as list of lines.
"""
# Parse header and rows
header_cells = parse_row(table_data['header'])
alignments = extract_alignment(table_data['separator'])
# Bold all header cells
header_cells = [bold_text(cell) for cell in header_cells]
# Parse and prepare data rows (exclude border lines)
data_rows = []
for row in table_data['rows']:
if row.startswith('|'):
cells = parse_row(row)
# Bold first column only if it's not empty
if cells and cells[0].strip() and not is_bolded(cells[0]):
cells[0] = bold_text(cells[0])
data_rows.append(cells)
# Calculate column widths based on all content
all_cells = [header_cells] + data_rows
num_cols = len(header_cells)
widths = [0] * num_cols
for row in all_cells:
for col_idx, cell in enumerate(row):
if col_idx < num_cols:
width = display_width(cell)
widths[col_idx] = max(widths[col_idx], width)
# Build formatted table
formatted = []
# Top border
formatted.append(build_border(widths))
# Header row
formatted.append(format_row(header_cells, widths, alignments, bold_first=False))
# Separator
formatted.append(build_separator(widths, alignments))
# Data rows with borders
for i, row_cells in enumerate(data_rows):
formatted.append(format_row(row_cells, widths, alignments, bold_first=False))
# Add row separator (border) after each data row except the last
if i < len(data_rows) - 1:
formatted.append(build_border(widths))
# Footer border
formatted.append(build_border(widths))
# Caption
if table_data.get('caption'):
formatted.append('') # Empty line before caption
formatted.append(table_data['caption'])
return formatted
def check_table_format(table_data: dict) -> List[str]:
"""
Check if a table is properly formatted.
Returns list of issues found (empty if table is correct).
"""
issues = []
# Parse header
header_cells = parse_row(table_data['header'])
# Check if all headers are bolded
for idx, cell in enumerate(header_cells):
if not is_bolded(cell):
issues.append(f"Header column {idx + 1} is not bolded: '{cell}'")
# Parse data rows and check first column (skip empty cells)
row_num = 1
for row in table_data['rows']:
if row.startswith('|'):
cells = parse_row(row)
# Only check non-empty first column cells
if cells and cells[0].strip() and not is_bolded(cells[0]):
issues.append(f"First column in row {row_num} is not bolded: '{cells[0]}'")
row_num += 1
# Check column width consistency
alignments = extract_alignment(table_data['separator'])
header_cells_bolded = [bold_text(cell) for cell in header_cells]
data_rows = []
for row in table_data['rows']:
if row.startswith('|'):
cells = parse_row(row)
# Bold first column only if it's not empty
if cells and cells[0].strip() and not is_bolded(cells[0]):
cells[0] = bold_text(cells[0])
data_rows.append(cells)
# Calculate expected widths
all_cells = [header_cells_bolded] + data_rows
num_cols = len(header_cells)
expected_widths = [0] * num_cols
for row in all_cells:
for col_idx, cell in enumerate(row):
if col_idx < num_cols:
width = display_width(cell)
expected_widths[col_idx] = max(expected_widths[col_idx], width)
# Check if current borders match expected widths
expected_border = build_border(expected_widths)
if table_data['header_border'].strip() != expected_border.strip():
issues.append(f"Border widths don't match content widths")
return issues
def process_file(file_path: Path, fix: bool = False) -> Tuple[int, int]:
"""
Process a single file to check or fix table formatting.
Returns (tables_checked, tables_with_issues)
"""
content = file_path.read_text(encoding='utf-8')
lines = content.split('\n')
tables_checked = 0
tables_with_issues = 0
modified = False
i = 0
new_lines = []
while i < len(lines):
# Check if this might be a table start
if lines[i].startswith('+'):
# Try to parse table
table_lines = []
j = i
while j < len(lines):
if lines[j].strip() == '' and table_lines and not lines[j - 1].startswith(':'):
break
if lines[j].startswith(':') and table_lines:
table_lines.append(lines[j])
j += 1
break
if lines[j].startswith('+') or lines[j].startswith('|'):
table_lines.append(lines[j])
j += 1
else:
break
table_data = parse_table(table_lines)
if table_data:
tables_checked += 1
issues = check_table_format(table_data)
if issues:
tables_with_issues += 1
if not fix:
print(f" Issues found in table at line {i + 1}:")
for issue in issues:
print(f" - {issue}")
else:
# Format the table
formatted = format_table(table_data)
new_lines.extend(formatted)
modified = True
else:
# Table is already correct
new_lines.extend(table_lines)
i = j
continue
# Not a table, keep line as is
new_lines.append(lines[i])
i += 1
if fix and modified:
# Write back to file
file_path.write_text('\n'.join(new_lines), encoding='utf-8')
print(f" Fixed {tables_with_issues} tables")
return tables_checked, tables_with_issues
def find_qmd_files(base_path: Path) -> List[Path]:
"""Find all .qmd files in contents/core directory."""
core_path = base_path / "quarto" / "contents" / "core"
if not core_path.exists():
print(f"Error: {core_path} does not exist")
return []
qmd_files = list(core_path.rglob("*.qmd"))
return sorted(qmd_files)
def main():
parser = argparse.ArgumentParser(
description="Format markdown grid tables in MLSysBook",
formatter_class=argparse.RawDescriptionHelpFormatter,
epilog="""
Examples:
# Check a single file
python format_tables.py --check quarto/contents/core/optimizations/optimizations.qmd
# Fix a single file
python format_tables.py --fix quarto/contents/core/optimizations/optimizations.qmd
# Check all files
python format_tables.py --check-all
# Fix all files
python format_tables.py --fix-all
"""
)
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument('--check', metavar='FILE', help='Check table formatting in a file')
group.add_argument('--fix', metavar='FILE', help='Fix table formatting in a file')
group.add_argument('--check-all', action='store_true', help='Check all .qmd files')
group.add_argument('--fix-all', action='store_true', help='Fix all .qmd files')
args = parser.parse_args()
# Determine workspace root (assume script is in tools/scripts/)
script_path = Path(__file__).resolve()
workspace_root = script_path.parent.parent.parent
if args.check or args.fix:
# Process single file
file_path = Path(args.check or args.fix)
if not file_path.is_absolute():
file_path = workspace_root / file_path
if not file_path.exists():
print(f"Error: File {file_path} does not exist")
return 1
fix_mode = bool(args.fix)
print(f"{'Fixing' if fix_mode else 'Checking'} {file_path.relative_to(workspace_root)}")
tables_checked, tables_with_issues = process_file(file_path, fix=fix_mode)
print(f" Found {tables_checked} tables, {tables_with_issues} with issues")
if not fix_mode and tables_with_issues > 0:
return 1
else:
# Process all files
qmd_files = find_qmd_files(workspace_root)
if not qmd_files:
print("No .qmd files found")
return 1
fix_mode = args.fix_all
print(f"{'Fixing' if fix_mode else 'Checking'} {len(qmd_files)} files...")
print()
total_tables = 0
total_issues = 0
files_with_issues = []
for qmd_file in qmd_files:
tables_checked, tables_with_issues = process_file(qmd_file, fix=fix_mode)
if tables_checked > 0:
rel_path = qmd_file.relative_to(workspace_root)
print(f"{rel_path}: {tables_checked} tables, {tables_with_issues} with issues")
total_tables += tables_checked
total_issues += tables_with_issues
if tables_with_issues > 0:
files_with_issues.append(rel_path)
print()
print(f"Total: {total_tables} tables checked, {total_issues} with issues")
if not fix_mode and total_issues > 0:
print()
print("Files with formatting issues:")
for file_path in files_with_issues:
print(f" - {file_path}")
return 1
return 0
if __name__ == '__main__':
sys.exit(main())

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#!/usr/bin/env python3
"""
Test cases for table formatter.
Tests various edge cases including:
- Standard tables with multiple rows
- Tables with empty cells
- Tables with multi-row cells
- Tables with Unicode characters
- Tables with already bolded content
"""
import sys
from pathlib import Path
from format_tables import (
display_width,
parse_table,
parse_row,
bold_text,
is_bolded,
calculate_column_widths,
extract_alignment,
build_border,
build_separator,
format_cell,
format_row,
format_table,
check_table_format
)
def test_display_width():
"""Test display width calculation."""
print("Testing display_width...")
# Basic ASCII
assert display_width("hello") == 5
# Bold markers should not count
assert display_width("**hello**") == 5
# Unicode characters
assert display_width("↑↑ High") == 7
# Mixed
assert display_width("**↑↑ High**") == 7
print(" ✓ display_width tests passed")
def test_bold_text():
"""Test bolding text."""
print("Testing bold_text...")
# Basic text
assert bold_text("hello") == "**hello**"
# Already bolded
assert bold_text("**hello**") == "**hello**"
# Empty text
assert bold_text("") == ""
assert bold_text(" ") == ""
# Text with spaces
assert bold_text(" hello ") == "**hello**"
print(" ✓ bold_text tests passed")
def test_is_bolded():
"""Test checking if text is bolded."""
print("Testing is_bolded...")
assert is_bolded("**hello**") == True
assert is_bolded("hello") == False
assert is_bolded("**hello") == False
assert is_bolded("hello**") == False
assert is_bolded("") == False
print(" ✓ is_bolded tests passed")
def test_parse_row():
"""Test parsing table rows."""
print("Testing parse_row...")
row = "| Header 1 | Header 2 | Header 3 |"
cells = parse_row(row)
assert cells == ["Header 1", "Header 2", "Header 3"]
# Empty cells
row = "| Value 1 | | Value 3 |"
cells = parse_row(row)
assert cells == ["Value 1", "", "Value 3"]
print(" ✓ parse_row tests passed")
def test_extract_alignment():
"""Test extracting alignment from separator."""
print("Testing extract_alignment...")
# Left aligned
sep = "+:===+:===+:===+"
alignments = extract_alignment(sep)
assert alignments == ["left", "left", "left"]
# Center aligned
sep = "+:===:+:===:+:===:+"
alignments = extract_alignment(sep)
assert alignments == ["center", "center", "center"]
# Mixed
sep = "+:===+:===:+===:+"
alignments = extract_alignment(sep)
assert alignments == ["left", "center", "right"]
print(" ✓ extract_alignment tests passed")
def test_build_border():
"""Test building border lines."""
print("Testing build_border...")
widths = [10, 15, 20]
border = build_border(widths)
expected = "+------------+-----------------+----------------------+"
assert border == expected
print(" ✓ build_border tests passed")
def test_build_separator():
"""Test building separator lines."""
print("Testing build_separator...")
widths = [10, 15, 20]
alignments = ["left", "center", "right"]
sep = build_separator(widths, alignments)
expected = "+:==========+:===============:+====================:+"
assert sep == expected
print(" ✓ build_separator tests passed")
def test_format_cell():
"""Test formatting cell content."""
print("Testing format_cell...")
# Left aligned
cell = format_cell("Hello", 10, "left")
assert cell == "Hello "
assert len(cell) == 10
# Center aligned
cell = format_cell("Hi", 10, "center")
assert cell == " Hi "
assert len(cell) == 10
# Right aligned
cell = format_cell("Bye", 10, "right")
assert cell == " Bye"
assert len(cell) == 10
# With Unicode
cell = format_cell("↑ High", 10, "left")
assert len(cell) == 10
print(" ✓ format_cell tests passed")
def test_simple_table():
"""Test formatting a simple table."""
print("Testing simple table formatting...")
table_lines = [
"+----------+----------+",
"| Header 1 | Header 2 |",
"+:=========+:=========+",
"| Value 1 | Value 2 |",
"+----------+----------+",
"| Value 3 | Value 4 |",
"+----------+----------+",
"",
": Test table caption {#tbl-test}"
]
table_data = parse_table(table_lines)
assert table_data is not None
# Check for issues (should find unbolded headers)
issues = check_table_format(table_data)
assert len(issues) > 0
# Format the table
formatted = format_table(table_data)
# Check that headers are bolded
assert "**Header 1**" in formatted[1]
assert "**Header 2**" in formatted[1]
# Check that first column is bolded
assert "**Value 1**" in formatted[3]
assert "**Value 3**" in formatted[5]
print(" ✓ Simple table formatting passed")
def test_table_with_empty_cells():
"""Test table with empty cells in first column."""
print("Testing table with empty cells...")
table_lines = [
"+-----------+---------+",
"| Technique | Goal |",
"+:==========+:=======:+",
"| Pruning | Reduce |",
"+-----------+---------+",
"| | Size |",
"+-----------+---------+"
]
table_data = parse_table(table_lines)
assert table_data is not None
# Format the table
formatted = format_table(table_data)
# Check that headers are bolded
assert "**Technique**" in formatted[1]
# Check that first column with content is bolded
assert "**Pruning**" in formatted[3]
# Empty cell should remain empty (no bold markers)
# Should not have "****" for empty cells
assert "****" not in formatted[5]
print(" ✓ Table with empty cells passed")
def test_table_with_unicode():
"""Test table with Unicode characters."""
print("Testing table with Unicode characters...")
table_lines = [
"+----------+----------+",
"| Type | Status |",
"+:=========+:========:+",
"| Memory | ↑↑ High |",
"+----------+----------+",
"| Speed | → Neutral|",
"+----------+----------+"
]
table_data = parse_table(table_lines)
assert table_data is not None
formatted = format_table(table_data)
# Check formatting preserved Unicode
assert "↑↑ High" in " ".join(formatted)
assert "→ Neutral" in " ".join(formatted)
print(" ✓ Table with Unicode passed")
def test_already_formatted_table():
"""Test table that's already properly formatted."""
print("Testing already formatted table...")
table_lines = [
"+--------------+--------------+",
"| **Header 1** | **Header 2** |",
"+:============:+:============:+",
"| **Row 1** | Value |",
"+--------------+--------------+",
"| **Row 2** | Value |",
"+--------------+--------------+"
]
table_data = parse_table(table_lines)
assert table_data is not None
# Should have no issues
issues = check_table_format(table_data)
# Note: May still have border width issues to check
formatted = format_table(table_data)
# Headers should stay bolded (not double-bolded)
assert "**Header 1**" in formatted[1]
assert "****Header 1****" not in formatted[1]
print(" ✓ Already formatted table passed")
def run_all_tests():
"""Run all test cases."""
print("=" * 60)
print("Running Table Formatter Tests")
print("=" * 60)
print()
try:
test_display_width()
test_bold_text()
test_is_bolded()
test_parse_row()
test_extract_alignment()
test_build_border()
test_build_separator()
test_format_cell()
test_simple_table()
test_table_with_empty_cells()
test_table_with_unicode()
test_already_formatted_table()
print()
print("=" * 60)
print("All tests passed! ✅")
print("=" * 60)
return 0
except AssertionError as e:
print()
print("=" * 60)
print(f"Test failed: {e}")
print("=" * 60)
return 1
except Exception as e:
print()
print("=" * 60)
print(f"Error running tests: {e}")
import traceback
traceback.print_exc()
print("=" * 60)
return 1
if __name__ == '__main__':
sys.exit(run_all_tests())