52 lines
1.7 KiB
Python
52 lines
1.7 KiB
Python
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import os
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import re
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SRC_DIR = "src"
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def minify_html(html: str) -> str:
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# Tags where whitespace should be preserved
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preserve_tags = ['pre', 'code', 'textarea', 'script', 'style']
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preserve_regex = '|'.join(preserve_tags)
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# Protect preserve blocks with placeholders
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preserve_blocks = []
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def preserve(match):
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preserve_blocks.append(match.group(0))
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return f"__PRESERVE_BLOCK_{len(preserve_blocks)-1}__"
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html = re.sub(rf'<({preserve_regex})[\s\S]*?</\1>', preserve, html, flags=re.IGNORECASE)
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# Remove HTML comments
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html = re.sub(r'<!--.*?-->', '', html, flags=re.DOTALL)
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# Collapse all whitespace between tags
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html = re.sub(r'>\s+<', '><', html)
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# Collapse multiple spaces inside tags
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html = re.sub(r'\s+', ' ', html)
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# Restore preserved blocks
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for i, block in enumerate(preserve_blocks):
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html = html.replace(f"__PRESERVE_BLOCK_{i}__", block)
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return html.strip()
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for root, _, files in os.walk(SRC_DIR):
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for file in files:
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if file.endswith(".html"):
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html_path = os.path.join(root, file)
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with open(html_path, "r", encoding="utf-8") as f:
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html_content = f.read()
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# minified = regex.sub("\g<1>", html_content)
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minified = minify_html(html_content)
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base_name = f"{os.path.splitext(file)[0]}Html"
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header_path = os.path.join(root, f"{base_name}.generated.h")
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with open(header_path, "w", encoding="utf-8") as h:
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h.write(f"// THIS FILE IS AUTOGENERATED, DO NOT EDIT MANUALLY\n\n")
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h.write(f"#pragma once\n")
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h.write(f'constexpr char {base_name}[] PROGMEM = R"rawliteral({minified})rawliteral";\n')
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print(f"Generated: {header_path}")
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