1 files changed, 68 insertions, 0 deletions
diff --git a/lib/silfont/scripts/psfcheckbasicchars.py b/lib/silfont/scripts/psfcheckbasicchars.py
new file mode 100644
index 0000000..c86beac
--- /dev/null
+++ b/lib/silfont/scripts/psfcheckbasicchars.py
@@ -0,0 +1,68 @@
+#!/usr/bin/env python
+__doc__ = '''Checks a UFO for the presence of glyphs that represent the
+Recommended characters for Non-Roman fonts and warns if any are missing.
+http://scriptsource.org/entry/gg5wm9hhd3'''
+__url__ = 'http://github.com/silnrsi/pysilfont'
+__copyright__ = 'Copyright (c) 2018 SIL International (http://www.sil.org)'
+__license__ = 'Released under the MIT License (http://opensource.org/licenses/MIT)'
+__author__ = 'Victor Gaultney'
+
+from silfont.core import execute
+from silfont.util import required_chars
+
+argspec = [
+    ('ifont',{'help': 'Input font file'}, {'type': 'infont'}),
+    ('-r', '--rtl', {'help': 'Also include characters just for RTL scripts', 'action': 'store_true'}, {}),
+    ('-s', '--silpua', {'help': 'Also include characters in SIL PUA block', 'action': 'store_true'}, {}),
+    ('-l','--log',{'help': 'Log file'}, {'type': 'outfile', 'def': '_checkbasicchars.log'})]
+
+def doit(args) :
+    font = args.ifont
+    logger = args.logger
+
+    rationales = {
+        "A": "in Codepage 1252",
+        "B": "in MacRoman",
+        "C": "for publishing",
+        "D": "for Non-Roman fonts and publishing",
+        "E": "by Google Fonts",
+        "F": "by TeX for visible space",
+        "G": "for encoding conversion utilities",
+        "H": "in case Variation Sequences are defined in future",
+        "I": "to detect byte order",
+        "J": "to render combining marks in isolation",
+        "K": "to view sidebearings for every glyph using these characters"}
+
+    charsets = ["basic"]
+    if args.rtl: charsets.append("rtl")
+    if args.silpua: charsets.append("sil")
+
+    req_chars = required_chars(charsets)
+
+    glyphlist = font.deflayer.keys()
+
+    for glyphn in glyphlist :
+        glyph = font.deflayer[glyphn]
+        if len(glyph["unicode"]) == 1 :
+            unival = glyph["unicode"][0].hex
+            if unival in req_chars:
+                del req_chars[unival]
+
+    cnt = len(req_chars)
+    if cnt > 0:
+        for usv in sorted(req_chars.keys()):
+            item = req_chars[usv]
+            psname = item["ps_name"]
+            gname = item["glyph_name"]
+            name = psname if psname == gname else psname + ", " + gname
+            logger.log("U+" + usv + " from the " + item["sil_set"] +
+                       " set has no representative glyph (" + name + ")", "W")
+            logger.log("Rationale: This character is needed " + rationales[item["rationale"]], "I")
+            if item["notes"]:
+                logger.log(item["notes"], "I")
+        logger.log("There are " + str(cnt) + " required characters missing", "E")
+
+    return
+
+def cmd() : execute("UFO",doit,argspec)
+if __name__ == "__main__": cmd()