lexer: Factor out functions for counting columns.

[pspp] / src / libpspp / i18n.h

diff --git a/src/libpspp/i18n.h b/src/libpspp/i18n.h
index 232c5dc166ec69d6e68e0c4ac1fe9d10fe6e7dae..3ae1e9e0b10456c679955ea999bcb64c39834c35 100644 (file)
--- a/src/libpspp/i18n.h
+++ b/src/libpspp/i18n.h
@@ -58,6 +58,9 @@ char *utf8_encoding_concat (const char *head, const char *tail,
 size_t utf8_encoding_concat_len (const char *head, const char *tail,
                                  const char *encoding, size_t max_len);
 
+size_t utf8_count_columns (const char *, size_t);
+size_t utf8_columns_to_bytes (const char *, size_t, size_t n_columns);
+
 char *utf8_to_filename (const char *filename);
 char *filename_to_utf8 (const char *filename);