File size: 1,649 Bytes
8f59bb3 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | from django.db import models
from pygments.lexers import get_lexer_by_name
from pygments.lexers import get_all_lexers
from pygments.styles import get_all_styles
from pygments.formatters.html import HtmlFormatter
from pygments import highlight
LEXERS = [item for item in get_all_lexers() if item[1]]
LANGUAGE_CHOICES = sorted([(item[1][0], item[0]) for item in LEXERS])
STYLE_CHOICES = sorted((item, item) for item in get_all_styles())
class Snippet(models.Model):
created = models.DateTimeField(auto_now_add=True)
title = models.CharField(max_length=100, blank=True, default='')
code = models.TextField()
line_nums = models.BooleanField(default=False)
language = models.CharField(choices=LANGUAGE_CHOICES,
default='python', max_length=100)
style = models.CharField(choices=STYLE_CHOICES,
default='friendly', max_length=100)
owner = models.ForeignKey('auth.User', related_name='snippets')
highlighted = models.TextField()
class Meta:
ordering = ('created',)
def save(self, *args, **kwargs):
"""
Use the `pygments` library to create a highlighted HTML
representation of the code snippet.
"""
lexer = get_lexer_by_name(self.language)
line_nums = self.line_nums and 'table' or False
options = self.title and {'title': self.title} or {}
formatter = HtmlFormatter(style=self.style, line_nums=line_nums,
full=True, **options)
self.highlighted = highlight(self.code, lexer, formatter)
super(Snippet, self).save(*args, **kwargs)
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