| 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) |
|
|
