[no subject]

[Arnold Robbins]

branch: texindex-unicode
commit 4cc6ebc49bf99d1aad7a528f8a0924947581caae
Author: Arnold D. Robbins <arnold@skeeve.com>
AuthorDate: Thu Nov 24 12:42:02 2022 -0500

    Add unicode.awk POC file for unicode characters.
---
 texindex/unicode.awk | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/texindex/unicode.awk b/texindex/unicode.awk
new file mode 100644
index 0000000000..c03baaa531
--- /dev/null
+++ b/texindex/unicode.awk
@@ -0,0 +1,20 @@
+BEGIN {
+       printf("0x10FFFF is %d\n", 0x10FFFF)
+       printf("0xFFFD is %d\n", 0xFFFD)
+       printf("0xFFFD is '%c'\n", 0xFFFD)
+       invalid = sprintf("%c\n", 0xFFFD)
+
+       count = 0
+       for (i = 0; i <= 0x10FFFF; i++) {
+               char = sprintf("%c", i)
+               if (isvalid(char))
+                       count++
+       }
+
+       printf("%d valid characters between 1 and %d\n", count, 0x10FFFF)
+}
+
+function isvalid(c)
+{
+       return c ~ 
/[[:alpha:][:blank:][:cntrl:][:digit:][:graph:][:lower:][:print:][:punct:][:space:][:upper:]]/
+}