Added python script for running urxvt.

urxvt.py

@@ -0,0 +1,104 @@
+#!/usr/bin/env python
+
+import argparse
+import collections
+import os
+import subprocess
+import sys
+
+
+SIZE = os.environ.get('URXVT_SIZE', 14)
+FIXED_SIZE = os.environ.get('URXVT_FIXED_SIZE', 16)
+ICON = os.environ.get('URXVT_ICON', 'tilda.png')
+ICON_PATH = os.environ.get('URXVT_ICON_PATH',
+                           os.path.expanduser('~/GNUstep/Library/Icons'))
+DEFAULT_TTF = os.environ.get('URXVT_TTF', 'DejaVuSansMono Nerd Font Mono')
+DEFAULT_BITMAP = os.environ.get('URXVT_BMP', 'Misc Fixed')
+
+# Arbitrary added fonts, that provides symbols, icons, emoji (besides those in
+# Nerd Font)
+_ADDITIONAL_FONTS = ['Symbola', 'Unifont Upper', 'DejaVu Sans']
+_REGULAR = ['regular', 'normal', 'book', 'medium', 'bold']
+_XFT_TEMPLATE = 'xft:%s:style=%s:pixelsize=%d'
+
+
+def _get_all_suitable_fonts():
+    """
+    Scan all available in the system fonts, where every line have format:
+
+    font_filename: font_name1[,font_name2,…]:style=style1[,style2,…]
+
+    Font can have several names and several styles. Styles can be either
+    single defined style or comma separated list of aliases or
+    internationalized names for style, i.e.:
+
+        filename1: font_name1:style=style
+        filename2: font_name2,font_name3:style=style1,style2
+        filename3: font_name4:style=style3,style4
+
+    Return a dictionary of styles associated to the font name, i.e.:
+
+        {font_name1: [style],
+         font_name2: [style1, style2],
+         font_name3: [style1, style2],
+         font_name4: [style3, style4]}
+
+    """
+    fonts = collections.defaultdict(list)
+    out = subprocess.check_output(['fc-list']).decode('utf-8')
+    for line in out.split('\n'):
+        if line and ': ' in line and ':style=' in line:
+            line = line.split(': ')[1]
+            font_names = line.split(':')[0].split(',')
+            styles = line.split(':style=')[1].split(',')
+            for name in font_names:
+                for style in styles:
+                    if style.lower().strip() in _REGULAR:
+                        fonts[name.strip()].append(style.strip())
+
+    out = {}
+    for key, val in fonts.items():
+        out[key] = list(set(val))
+
+    return out
+
+
+_AVAILABLE_FONTS = _get_all_suitable_fonts()
+
+
+def _get_style(name, bold=False):
+    try:
+        styles = _AVAILABLE_FONTS[name]
+    except KeyError:
+        print(f'There is no matching font for name "{name}".')
+        sys.exit(1)
+
+    for style in styles:
+        if bold and style.lower() == 'bold':
+            return style
+
+        if style.lower() in _REGULAR:
+            return style
+
+
+def _get_font_list(ff_list, bold=False, bmp_first=False):
+    fonts = []
+
+    for face in ff_list:
+        fonts.append(_XFT_TEMPLATE % (face, _get_style(face), SIZE))
+    if bmp_first:
+        fonts.insert(0, _XFT_TEMPLATE %
+                     (DEFAULT_BITMAP, _get_style(DEFAULT_BITMAP), FIXED_SIZE))
+    return ','.join(fonts)
+
+
+def main():
+    font_faces = _ADDITIONAL_FONTS[:]
+    font_faces.insert(0, DEFAULT_TTF)
+    regular = _get_font_list(font_faces)
+    print(regular)
+    subprocess.run(['urxvt', '-fn', regular])
+
+
+if __name__ == '__main__':
+    main()