patch 9.0.1585: weird use of static variables for spell checking
Problem: Weird use of static variables for spell checking.
Solution: Move the variables to a structure and pass them from win_update()
to win_line(). (Luuk van Baal, closes #12448)
diff --git a/src/structs.h b/src/structs.h
index 5df8f84..3a32bc5 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -4870,3 +4870,18 @@
// message (when it is not NULL).
char *os_errbuf;
} optset_T;
+
+/*
+ * Spell checking variables passed from win_update() to win_line().
+ */
+typedef struct {
+ int spv_has_spell; // drawn window has spell checking
+#ifdef FEAT_SPELL
+ int spv_unchanged; // not updating for changed text
+ int spv_checked_col; // column in "checked_lnum" up to
+ // which there are no spell errors
+ linenr_T spv_checked_lnum; // line number for "checked_col"
+ int spv_cap_col; // column to check for Cap word
+ linenr_T spv_capcol_lnum; // line number for "cap_col"
+#endif
+} spellvars_T;