1 files changed, 76 insertions, 0 deletions
diff --git a/paper/lua-filters/minted/background_color.py b/paper/lua-filters/minted/background_color.py
new file mode 100755
index 0000000..e830db4
--- /dev/null
+++ b/paper/lua-filters/minted/background_color.py
@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+
+r"""
+A simple script to print out the RGB ``\definecolor`` command for the background
+color of a specified pygments style name.
+"""
+
+import sys
+try:
+    from pygments.styles import get_style_by_name
+except ImportError as ie:
+    sys.stderr.write("Please install the Pygments package:\n{0}\n".format(ie))
+    sys.exit(1)
+
+
+if __name__ == "__main__":
+    # Make sure we have a style name provided.
+    if len(sys.argv) != 2:
+        sys.stderr.write("Usage: {0} <style_name>\n\n".format(sys.argv[0]))
+        sys.stderr.write("  Tip: run `pygmentize -L` to see style names.\n")
+        sys.exit(1)
+
+    # Grab the style object, error out if invalid name.
+    style_name = sys.argv[1]
+    try:
+        style = get_style_by_name(style_name)
+    except Exception as e:
+        sys.stderr.write("Unable to find {0}:\n{1}\n".format(style_name, e))
+        sys.exit(1)
+
+    # Convert the hexadecimal string into rgb.
+    background_hex = style.background_color.replace("#", "")
+    if len(background_hex) != 6:
+        sys.stderr.write("Unknown hex color: {0}\n".format(background_hex))
+        sys.exit(1)
+
+    try:
+        r = int(background_hex[0:2], 16)
+        g = int(background_hex[2:4], 16)
+        b = int(background_hex[4:6], 16)
+    except Exception as e:
+        sys.stderr.write("Unable to convert to integers:\n{0}\n".format(e))
+        sys.exit(1)
+
+    # Build out the various options for \definecolor
+    # All should be equivalent, but users may have a preference of one format
+    # over another :p
+    tex_color_name = "{0}_bg".format(style_name)
+    def_HTML = r"\definecolor{{{0}}}{{HTML}}{{{1}}}".format(
+        tex_color_name, background_hex.upper()
+    )
+    def_RGB = r"\definecolor{{{0}}}{{RGB}}{{{1}}}".format(
+        tex_color_name, "{0},{1},{2}".format(r, g, b)
+    )
+    def_rgb = r"\definecolor{{{0}}}{{rgb}}{{{1}}}".format(
+        tex_color_name,
+        ",".join(["{0:.4}".format(float(c) / 255.0) for c in [r, g, b]])
+    )
+
+    # Enumerate the options
+    print("Options for {0} (choose *one*):\n".format(style_name))
+    print("  (*) {0}".format(def_HTML))
+    print("  (*) {0}".format(def_RGB))
+    print("  (*) {0}".format(def_rgb))
+
+    # Make sure they know that `{style_name}_bg` can be changed to whatever
+    # they want to be using in their document.
+    notice = "{0}|{1}/".format(
+        len(r"  (*) \definecolor{") * " ",
+        (len(tex_color_name) - 2) * "-"
+    )
+    vline = notice[0:notice.find("|")+1]
+    can_change = vline.replace("|", "+--> You can rename this too :)")
+    print(notice)
+    print(vline)
+    print(can_change)