Eliminate pen style and history stream parameter smuggling

- Introduce struct text_pen bundling (fg, bg, sl) across screen and core
- Reduce text_append from 9 to 7 parameters
- Reduce text_commit from 8 to 6 parameters
- Reduce hist_runs_add_pen from 5 to 3 parameters
- Reduce sc_text_ascii and sc_ascii_fast from 6 to 4 parameters
- Remove unused fg, bg parameters from mark_row_blank
- Introduce struct hist_stream_state in src/hist.c, reducing stream_lines from 9 to 5 params and lf_rows from 10 to 6 params
- Introduce struct hist_view_pos in src/hist_view.h, reducing term_hist_view_row_pos from 9 to 7 params

1 files changed, 9 insertions, 0 deletions

diff --git a/src/internal.h b/src/internal.h
index dd4649c..979883e 100644
--- a/src/internal.h
+++ b/src/internal.h
@@ -335,6 +335,15 @@ static inline uint32_t term_flags_pad(const struct term *t)
     return term_current_flags(t) | ((uint32_t)t->cur_link << 16);
 }
 
+static inline struct text_pen term_text_pen(const struct term *t)
+{
+    return (struct text_pen){
+        .fg = TERM_EXPECT(t->inverse, 0) ? t->cur_bg : t->cur_fg,
+        .bg = TERM_EXPECT(t->inverse, 0) ? t->cur_fg : t->cur_bg,
+        .sl = term_flags_pad(t),
+    };
+}
+
 static inline void term_tabs_clear(struct term *t)
 {
     memset(t->tabs, 0, (size_t)t->tabs_cap);