Merge branch 'xtversion'

Closes #359

CHANGELOG.md

@@ -301,6 +301,9 @@
   (https://codeberg.org/dnkl/foot/issues/395).
 * Completions for Bash shell
   (https://codeberg.org/dnkl/foot/issues/10).
+* Implement `XTVERSION` (`CSI > 0q`). Foot will reply with
+  `DCS>|foot(<major>.<minor>.<patch>)ST`
+  (https://codeberg.org/dnkl/foot/issues/359).
 
 
 ### Changed

csi.c

@@ -1565,6 +1565,22 @@ csi_dispatch(struct terminal *term, uint8_t final)
             }
             break; /* final == 'm' */
 
+        case 'q': {
+            /* XTVERSION */
+            if (vt_param_get(term, 0, 0) != 0) {
+                UNHANDLED();
+                break;
+            }
+
+            char reply[64];
+            size_t n = xsnprintf(
+                reply, sizeof(reply), "\033P>|foot(%u.%u.%u%s%s)\033\\",
+                FOOT_MAJOR, FOOT_MINOR, FOOT_PATCH,
+                FOOT_EXTRA[0] != '\0' ? "-" : "", FOOT_EXTRA);
+            term_to_slave(term, reply, n);
+            break;
+        }
+
         default:
             UNHANDLED();
             break;

doc/foot-ctlseqs.7.scd

@@ -549,6 +549,11 @@ manipulation sequences. The generic format is:
 :  XTSMGRAPHICS
 :  xterm
 :  Set or request sixel attributes.
+|  \\E > _Ps_ q
+:  XTVERSION
+:  xterm
+:  _Ps_=0 -> report terminal name and version, in the form
+   *\\EP>|foot(version)\\E\\*.
 
 # OSC
 

generate-version.sh

@@ -22,14 +22,16 @@ else
     new_version="${default_version}"
 fi
 
-major=$(echo "${new_version}" | sed -r 's/([0-9]+)\.([0-9]+)\.([0-9]+).*/\1/')
+major=$(echo "${new_version}" | sed -r 's/([0-9]+)\.([0-9]+)\.([0-9]+)(-([0-9]+-g[a-z0-9]+) .*)?/\1/')
-minor=$(echo "${new_version}" | sed -r 's/([0-9]+)\.([0-9]+)\.([0-9]+).*/\2/')
+minor=$(echo "${new_version}" | sed -r 's/([0-9]+)\.([0-9]+)\.([0-9]+)(-([0-9]+-g[a-z0-9]+) .*)?/\2/')
-patch=$(echo "${new_version}" | sed -r 's/([0-9]+)\.([0-9]+)\.([0-9]+).*/\3/')
+patch=$(echo "${new_version}" | sed -r 's/([0-9]+)\.([0-9]+)\.([0-9]+)(-([0-9]+-g[a-z0-9]+) .*)?/\3/')
+extra=$(echo "${new_version}" | sed -r 's/([0-9]+)\.([0-9]+)\.([0-9]+)(-([0-9]+-g[a-z0-9]+) .*)?/\5/')
 
 new_version="#define FOOT_VERSION \"${new_version}\"
 #define FOOT_MAJOR ${major}
 #define FOOT_MINOR ${minor}
-#define FOOT_PATCH ${patch}"
+#define FOOT_PATCH ${patch}
+#define FOOT_EXTRA \"${extra}\""
 
 if [ -f "${out_file}" ]; then
     old_version=$(cat "${out_file}")