需求：屏蔽풉풆풍풍풐等装饰性字符的技术实现方案

Alright, let's figure out how to strip those fancy decorative characters you listed—things like 풉풆풍풍풐, 퓌표퓇퓁풹, and 픥픢픩픩픬. These are usually either combining diacritical marks (tiny symbols attached to base letters) or styled Unicode variants (like math bold/italic letters or modified Hangul syllables) that don't add meaningful semantic value to your text. Here are practical solutions for a couple of popular programming languages:

Python Implementation #

The core idea is using Unicode normalization to break down decorated characters into their base components, then filtering out the decorative parts, plus explicitly targeting unbreakable styled variants.

import unicodedata
import re

def clean_decorative_chars(text):
    # Step 1: Normalize characters to split decorated ones into base + decorative marks
    normalized_text = unicodedata.normalize('NFKD', text)
    # Step 2: Remove all combining diacritical marks (the decorative attachments)
    cleaned = ''.join([char for char in normalized_text if not unicodedata.combining(char)])
    # Step 3: Remove unbreakable styled variants (e.g., math bold/italic letters)
    cleaned = re.sub(r'[\u1D400-\u1D7FF]', '', cleaned)
    return cleaned

# Test with your sample text
sample = "풉풆풍풍풐 풘풐풓풍풅 풽푒퓁퓁표 퓌표퓇퓁풹 픥픢픩픩픬 픴픬픯픩픡"
print(clean_decorative_chars(sample))

JavaScript Implementation #

Similar logic applies here—normalize to decompose characters, then strip out decorative ranges with regex.

function cleanDecorativeChars(text) {
    // Normalize to break down decorated characters into base + marks
    const normalized = text.normalize('NFKD');
    // Remove combining diacritical marks first
    let cleaned = normalized.replace(/[\u0300-\u036F]/g, '');
    // Remove styled Unicode variants (math symbols, fancy lettering, emoji variations)
    cleaned = cleaned.replace(/[\u1D400-\u1D7FF\u20D0-\u20FF\uFE00-\uFE0F]/g, '');
    return cleaned;
}

// Test with your sample
const sampleText = "풉풆풍풍풐 풘풐풓풍풅 풽푒퓁퓁표 퓌표퓇퓁풹 픥픢픩픩픬 픴픬픯픩픡";
console.log(cleanDecorativeChars(sampleText));

Key Notes #

• Unicode Normalization: NFKD normalization is critical here—it takes complex decorated characters and splits them into a base character plus separate decorative marks, making them easy to filter out.
• Regex Ranges: The regex targets specific Unicode blocks known for decorative elements:
  • \u1D400-\u1D7FF: Math letter symbols (bold/italic/styled Latin letters)
  • \u0300-\u036F: Combining diacritical marks (accents, tildes, etc.)
  • \u20D0-\u20FF: Combining diacritical marks for symbols
  • \uFE00-\uFE0F: Variation selectors (used to style emojis/characters)
• Tweak for Your Needs: If you need to keep certain decorative characters (like language-specific accents), adjust the regex to exclude those ranges.

内容的提问来源于stack exchange，提问作者abod alabhawi