keywordcaseフィルタの例

初回公開：2018/10/14
最終更新：未

サンプルコード

from pygments import highlight
from pygments.lexers import get_lexer_by_name
from pygments.formatters import HtmlFormatter

code=u"""
def add_func(a,b):
    return a+b

print add_func(2,3)
"""
formatter = HtmlFormatter()

lexer = get_lexer_by_name("python")
lexer.add_filter('keywordcase',case='lower')
with open("filter_keywordcase_lower.html", 'w') as outfile:
    highlight(code, lexer, formatter,outfile)

lexer = get_lexer_by_name("python")
lexer.add_filter('keywordcase',case='upper')
with open("filter_keywordcase_upper.html", 'w') as outfile:
    highlight(code, lexer, formatter,outfile)

lexer = get_lexer_by_name("python")
lexer.add_filter('keywordcase',case='capitalize')
with open("filter_keywordcase_capitalize.html", 'w') as outfile:
    highlight(code, lexer, formatter,outfile)

実行結果

htmlコード

filter_keywordcase_lower.html

<div class="highlight"><pre><span></span><span class="k">def</span> <span class="nf">add_func</span><span class="p">(</span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">):</span>
    <span class="k">return</span> <span class="n">a</span><span class="o">+</span><span class="n">b</span>

<span class="k">print</span> <span class="n">add_func</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">)</span>
</pre></div>

filter_keywordcase_upper.html

<div class="highlight"><pre><span></span><span class="k">DEF</span> <span class="nf">add_func</span><span class="p">(</span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">):</span>
    <span class="k">RETURN</span> <span class="n">a</span><span class="o">+</span><span class="n">b</span>

<span class="k">PRINT</span> <span class="n">add_func</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">)</span>
</pre></div>

filter_keywordcase_capitalize.html

<div class="highlight"><pre><span></span><span class="k">Def</span> <span class="nf">add_func</span><span class="p">(</span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">):</span>
    <span class="k">Return</span> <span class="n">a</span><span class="o">+</span><span class="n">b</span>

<span class="k">Print</span> <span class="n">add_func</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">)</span>
</pre></div>

html表示イメージ

python言語のキーワードが小文字，大文字，先頭の文字を大文字に、変換されているのが確認できる。

filter_keywordcase_lower.html

def add_func(a,b):
    return a+b

print add_func(2,3)

filter_keywordcase_upper.html

DEF add_func(a,b):
    RETURN a+b

PRINT add_func(2,3)

filter_keywordcase_capitalize.html

Def add_func(a,b):
    Return a+b

Print add_func(2,3)