From efd023ad327c51bafa5c7df6d6f35796babce4f8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Sun, 13 Jun 2021 09:46:22 +0200
Subject: [PATCH 1/3] =?UTF-8?q?generate-version:=20add=20a=20define=20for?=
 =?UTF-8?q?=20=E2=80=9Cextra=E2=80=9D=20version=20information?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This will be set to “rrr-gNNNNNNN” when building from git, and the
empty string otherwise.
---
 generate-version.sh | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/generate-version.sh b/generate-version.sh
index cfb85059..b539ce42 100755
--- a/generate-version.sh
+++ b/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/')
-minor=$(echo "${new_version}" | sed -r 's/([0-9]+)\.([0-9]+)\.([0-9]+).*/\2/')
-patch=$(echo "${new_version}" | sed -r 's/([0-9]+)\.([0-9]+)\.([0-9]+).*/\3/')
+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]+)(-([0-9]+-g[a-z0-9]+) .*)?/\2/')
+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}")

From 3adc3367e69e1b1c13595167cb0dbeb48391ca83 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Tue, 16 Feb 2021 12:00:58 +0100
Subject: [PATCH 2/3] csi: implement XTVERSION (CSI > 0q)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This is a fairly new XTerm extension. The reply is on the format:

  DCS > | text ST

XTerm replies with ‘text’ = “XTerm(366)”.

Foot replies with ‘text’ = “foot(1.6.4)”

Closes #359
---
 CHANGELOG.md |  3 +++
 csi.c        | 16 ++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3ad10db9..3ec5ccb8 100644
--- a/CHANGELOG.md
+++ b/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
diff --git a/csi.c b/csi.c
index 2d497636..fcc2800f 100644
--- a/csi.c
+++ b/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;

From 772e3769921165cd6efefd6efd8b4ffb3296d8a9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Sun, 13 Jun 2021 09:53:45 +0200
Subject: [PATCH 3/3] doc: ctlseq: add XTVERSION

---
 doc/foot-ctlseqs.7.scd | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/doc/foot-ctlseqs.7.scd b/doc/foot-ctlseqs.7.scd
index 68408644..cf71ee15 100644
--- a/doc/foot-ctlseqs.7.scd
+++ b/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