Merge pull request #245 from Katharineum/feature/allow-special-characters-latex

Allow greater than character in LaTeX (issue #241)

schoolapps/templatetags/templatetags/tex.py

+# -*- coding: utf-8 -*-
+"""
+Django filters, needed when creating LaTeX files with the django template language
+
+Written by Rocco Schulz (http://is-gr8.com/), modified by SchoolApps-Team
+"""
+from django.template.defaultfilters import stringfilter, register
+from django.template.loader import render_to_string
+
+
+@register.filter
+@stringfilter
+def brackets(value):
+    """
+    surrounds the value with { }
+    You have to use this filter whenever you would need something like
+    {{{ field }}} in a template.
+    """
+    return "{%s}" % value
+
+
+REPLACEMENTS = {
+    "§": "\\textsection{}",
+    "$": "\\textdollar{}",
+    "LaTeX": "\\LaTeX \\ ",
+    " TeX": " \\TeX \\ ",
+    "€": "\\euro",
+    ">": "$>$",
+    "<": "$<$"
+}
+
+ESCAPES = ("&", "{", "}", "%")
+
+
+@register.filter
+@stringfilter
+def texify(value):
+    """
+    escapes/replaces special character with appropriate latex commands
+    """
+    tex_value = []
+
+    # escape special symbols
+    for char in value:
+        tex_value.append("%s" % ("\\%s" % char if char in ESCAPES else char))
+    tex_value = "".join(tex_value)
+
+    # replace symbols / words with latex commands
+    for key, value in REPLACEMENTS.items():
+        tex_value = tex_value.replace(key, value)
+
+    return "%s" % tex_value

schoolapps/templatetags/templatetags/url_name.py

@@ -3,8 +3,10 @@ from django import template
 
 register = template.Library()
 
-def get_url_name(request): # Only one argument.
+
+def get_url_name(request):  # Only one argument.
     """Gets url_name"""
     return resolve(request.path_info).url_name
 
-register.filter("url_name", get_url_name)
\ No newline at end of file
+
+register.filter("url_name", get_url_name)

schoolapps/timetable/templates/timetable/latex/substitutions.tex

 {% load common %}
+{% load tex %}
 
 \documentclass[11pt]{article}
 \usepackage[ngerman]{babel}
@@ -125,7 +126,7 @@ Stand: {% now "j. F Y H:i" %}\\
         {# Display badge (for cancellations) #}     {# Display notice and new line #}
         {% if sub.badge %}
         \normalsize\badge{ {{ sub.badge }} }
-        {% endif %} \color{ {{c}}} \large\textit{ {{sub.text|default:""|safe}} } \\
+        {% endif %} \color{ {{c}}} \large\textit{ {{sub.text|default:""|safe|texify|safe}} } \\
 
     {% endwith %}
     {% endfor %}