config.zig: every binding and every piece of Look syntax in one file

Retargeting a key, a mouse chord or a spelling is now an edit to src/config.zig
and nothing else. Three parts in reading order: pardes's own bindings (where a
reader lands), the Look/Exec syntax, then the helix keymap under a banner
saying hxdiff/hxparity are differential suites against real helix, so a key
moved there is a divergence and not a tweak.

The bindings are data a comptime loop can walk, because the builtin index is
going to walk them.

Duplication this cut: is/isC/isA became one hit(key, chords) over ~132 call
sites, and a binding being a LIST collapses the letter-or-arrow chains;
swap_enter_tab is gone, replaced by look_key/exec_key that can point anywhere;
the four focus builtins' h/j/k/l lived hardcoded in two places and is now one
table.

No golden moved.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/output_pane.zig b/src/output_pane.zig
index 4535495c..64bfc630 100644
--- a/src/output_pane.zig
+++ b/src/output_pane.zig
@@ -14,6 +14,7 @@ const pardes = @import("pardes.zig");
 const Pardes = pardes.Pardes;
 const Pane = pardes.Pane;
 const file_pane = @import("file_pane.zig");
+const config = @import("config.zig");
 
 /// `content` is gpa-owned and adopted. The name carries `dir` so looks inside
 /// the buffer resolve like anywhere else.
@@ -51,7 +52,7 @@ pub fn openHelp(p: *Pardes, id: usize, prefix: []const u8) void {
     for (p.panes, 0..) |slot, i| {
         const hp = slot orelse continue;
         const hf = if (hp.file) |*f| f else continue;
-        if (!hf.output or !std.mem.endsWith(u8, hf.path, "/+Help")) continue;
+        if (!hf.output or !std.mem.endsWith(u8, hf.path, "/" ++ config.help_buffer)) continue;
         file_pane.setContent(p, hf, content);
         hf.scroll = 0;
         hp.cur_row = 0;
@@ -64,7 +65,7 @@ pub fn openHelp(p: *Pardes, id: usize, prefix: []const u8) void {
         p.gpa.free(content);
         return;
     };
-    const np = open(p, free, dir, "+Help", content) catch {
+    const np = open(p, free, dir, config.help_buffer, content) catch {
         p.gpa.free(content);
         return;
     };