notcurses-info: indicate that el capability is present

doc/man/man1/notcurses-info.1.md

@@ -52,6 +52,7 @@ The next five lines describe properties of the terminal environment:
   * op: Colors can be reset via a single escape
   * fgop: Foreground can be reset via a single escape
   * bgop: Background can be reset via a single escape
+  * bce: The back-color-erase property is in play
 
 * The second line is more of the same:
   * bold: Boldface is available
@@ -62,14 +63,18 @@ The next five lines describe properties of the terminal environment:
   * u7: Cursor position reporting
   * ccc: Palette can be reprogrammed
   * rgb: Colors can be specified as RGB wit eight bits/channel
+  * el: Clearing can be performed through the end of the line
 
-* The third line covers UTF8 and decoding capabilities:
+* The third line also covers UTF8 and decoding capabilities:
   * utf8: This is a UTF8 environment
-  * quad: Quadrant characters are available
-  * sex: Sextant characters are available
-  * braille: Braille characters are available
-  * images: Images can be decoded
-  * video: Video can be decoded
+  * 2x1: Upper- and lower-half blocks are available
+  * 2x2: Quadrant blocks are available
+  * 3x2: Sextant blocks are available
+  * 4x2: Braille characters are available
+  * img: Images can be decoded
+  * vid: Video can be decoded
+  * indn: Multiple-line scrolling is available
+  * gpm: Connection is established to the GPM server
 
 * The fourth line indicates the default background color, and whether that
   color is treated as transparent.

src/info/main.c

@@ -399,17 +399,18 @@ tinfo_debug_styles(const notcurses* nc, struct ncplane* n, const char* indent){
   tinfo_debug_cap(n, "u7", get_escape(ti, ESCAPE_U7));
   tinfo_debug_cap(n, "ccc", ti->caps.can_change_colors);
   tinfo_debug_cap(n, "rgb", ti->caps.rgb);
-  tinfo_debug_cap(n, "gpm", ti->gpmfd >= 0);
+  tinfo_debug_cap(n, "el", get_escape(ti, ESCAPE_EL));
   finish_line(n);
   ncplane_putstr(n, indent);
   tinfo_debug_cap(n, "utf8", ti->caps.utf8);
-  tinfo_debug_cap(n, "half", ti->caps.halfblocks);
-  tinfo_debug_cap(n, "quad", ti->caps.quadrants);
-  tinfo_debug_cap(n, "sex", ti->caps.sextants);
-  tinfo_debug_cap(n, "braille", ti->caps.braille);
-  tinfo_debug_cap(n, "images", notcurses_canopen_images(nc));
-  tinfo_debug_cap(n, "video", notcurses_canopen_videos(nc));
+  tinfo_debug_cap(n, "2x1", ti->caps.halfblocks);
+  tinfo_debug_cap(n, "2x2", ti->caps.quadrants);
+  tinfo_debug_cap(n, "3x2", ti->caps.sextants);
+  tinfo_debug_cap(n, "4x2", ti->caps.braille);
+  tinfo_debug_cap(n, "img", notcurses_canopen_images(nc));
+  tinfo_debug_cap(n, "vid", notcurses_canopen_videos(nc));
   tinfo_debug_cap(n, "indn", get_escape(ti, ESCAPE_INDN));
+  tinfo_debug_cap(n, "gpm", ti->gpmfd >= 0);
   finish_line(n);
 }
 

src/lib/termdesc.c

@@ -821,6 +821,7 @@ int interrogate_terminfo(tinfo* ti, const char* termtype, FILE* out, unsigned ut
     { ESCAPE_U7, "u7", },
     { ESCAPE_SMKX, "smkx", },
     { ESCAPE_SMXX, "smxx", },
+    { ESCAPE_EL, "el", },
     { ESCAPE_RMXX, "rmxx", },
     { ESCAPE_SMUL, "smul", },
     { ESCAPE_RMUL, "rmul", },

src/lib/termdesc.h

@@ -54,6 +54,7 @@ typedef enum {
   ESCAPE_CUD,     // "cud" move n cells down
   ESCAPE_SMKX,    // "smkx" keypad_xmit (keypad transmit mode)
   ESCAPE_RMKX,    // "rmkx" keypad_local
+  ESCAPE_EL,      // "el" clear to end of line, inclusive
   ESCAPE_SMCUP,   // "smcup" enter alternate screen
   ESCAPE_RMCUP,   // "rmcup" leave alternate screen
   ESCAPE_SMXX,    // "smxx" start struckout