Add unicode normalization, etc

1 files changed, 23 insertions, 0 deletions

diff --git a/src/bindings/libunicode.nim b/src/bindings/libunicode.nim
new file mode 100644
index 00000000..d53fa060
--- /dev/null
+++ b/src/bindings/libunicode.nim
@@ -0,0 +1,23 @@
+type
+  DynBufReallocFunc = proc(opaque: pointer, p: pointer, size: csize_t): pointer {.cdecl.}
+
+  CharRange* = object
+    len*: cint # in points, always even
+    size*: cint
+    points*: ptr uint32 # points sorted by increasing value
+    mem_opaque*: pointer
+    realloc_func*: DynBufReallocFunc
+
+  UnicodeNormalizationEnum* {.size: sizeof(cint).} = enum
+    UNICODE_NFC, UNICODE_NFD, UNICODE_NKFC, UNICODE_NKFD
+
+proc cr_init*(cr: ptr CharRange, mem_opaque: pointer,
+              realloc_func: DynBufReallocFunc) {.importc.}
+
+proc cr_free*(cr: ptr CharRange) {.importc.}
+
+proc unicode_normalize*(pdst: ptr ptr uint32, src: ptr uint32, src_len: cint,
+                        n_type: UnicodeNormalizationEnum, opaque: pointer,
+                        realloc_func: DynBufReallocFunc): cint {.importc.}
+
+proc unicode_general_category*(cr: ptr CharRange, gc_name: cstring): cint {.importc.}