39 lines
1.6 KiB
Python
39 lines
1.6 KiB
Python
from django.db import models
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# pygments
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from pygments import highlight
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from pygments.lexers import get_all_lexers
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from pygments.styles import get_all_styles
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from pygments.lexers import get_lexer_by_name
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from pygments.formatters.html import HtmlFormatter
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LEXERS = [item for item in get_all_lexers() if item[1]]
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LANGUAGE_CHOICES = sorted([(item[1][0], item[0]) for item in LEXERS])
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STYLE_CHOICES = sorted([(item, item) for item in get_all_styles()])
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class Snippet(models.Model):
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created = models.DateTimeField(auto_now_add=True)
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# modified?
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title = models.CharField(max_length=100, blank=True, default='')
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code = models.TextField()
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linenos = models.BooleanField(default=False)
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language = models.CharField(choices=LANGUAGE_CHOICES, default='python', max_length=100)
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style = models.CharField(choices=STYLE_CHOICES, default='friendly', max_length=100)
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owner = models.ForeignKey('auth.user', related_name='snippets', on_delete=models.CASCADE)
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highlighted = models.TextField
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class Meta:
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ordering = ['created']
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def save(self, *args, **kwargs):
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"""
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Use the `pygments` library to create a highlighted HTML
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representation of the code snippet.
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"""
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lexer = get_lexer_by_name(self.language)
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linenos = 'table' if self.linenos else False
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options = {'title': self.title} if self.title else {}
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formatter = HtmlFormatter(style=self.style, linenos=linenos,
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full=True, **options)
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self.highlighted = highlight(self.code, lexer, formatter)
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super().save(*args, **kwargs) |