Move looking out of pardes.zig into look.zig

Pure move, no behaviour change (acme keeps this in look.c): expanding the
word under a click (ExpandedWord, expandedWord, expandedSel, cursorWordSel),
the n/N walk (LookFrom, lookEdge, lookStand, lookWalkPanes, lookPast,
wholeRowSpan, lookSpanIn, lookWalk, landLookSpot, noteLookSource,
armLookWalk), search results (Search, SearchStart, submitSearch,
lookFirstHit, runSearch, searchStep, jumpResult), the look-hover preview
(LookHoverWait, LookHoverPreview, FileWordSpan, PdfWordPreview,
invalidateLookHover, cancelLookHover, lookHoverPane, noteLookHover,
refreshLookHoverFromRaw, advanceLookHover) and lookAt with its targets
(focusPaneLine, selectSpan, openPaneTarget, focusPaneByPath,
clearNavigationSelection, resolveLookTarget, locationText,
canonicalLookLocation, pdfLinkLocation, followPdfLink), with five tests, go
verbatim to the end of look.zig after its word and target resolution.

The methods become free functions taking `p: *Pardes`; their 143 call sites
change from `p.lookAt(..)` to `look.lookAt(p, ..)` (tests reach them as
`pardes.look.x`). Inside look.zig the moved code's `look.` prefix drops.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 8 insertions, 6 deletions

diff --git a/src/normal.zig b/src/normal.zig
index 7a18aae5..e273f7f1 100644
--- a/src/normal.zig
+++ b/src/normal.zig
@@ -2,6 +2,7 @@
 //! modal actions, replayed across every selection, and each action is done
 //! to the pane; PDF panes get their own normal keys.
 const pardes = @import("pardes.zig");
+const look = @import("look.zig");
 const std = @import("std");
 const mvzr = @import("mvzr");
 const modal = @import("modal.zig");
@@ -388,20 +389,20 @@ fn executeNormalAction(p: *Pardes, pane: *Pane, semantic: modal.Normal.Action) v
             const fwd = diagnostic.direction == .forward;
             if (!diagnostic.endpoint) {
                 if (panes.Output.resultsFrom(p, pane, .{ .query = .diagnostics }) and
-                    p.searchStep(p.active, if (fwd) 1 else -1)) return;
+                    look.searchStep(p, p.active, if (fwd) 1 else -1)) return;
                 return p.lspRequest(p.active, .diagnostics, "");
             }
             if (!panes.Output.resultsFrom(p, pane, .{ .query = .diagnostics }))
                 return p.lspRequest(p.active, .diagnostics, "");
             if (!fwd) {
                 pane.search_row = null;
-                _ = p.searchStep(p.active, 1);
+                _ = look.searchStep(p, p.active, 1);
                 return;
             }
             const rp = p.panes[pane.search_pane orelse return] orelse return;
             const rf = rp.file orelse return;
             pane.search_row = std.mem.count(u8, rf.content, "\n");
-            _ = p.searchStep(p.active, -1);
+            _ = look.searchStep(p, p.active, -1);
         },
         .move => |move| switch (move.motion) {
             .left => {
@@ -552,7 +553,8 @@ fn executeNormalAction(p: *Pardes, pane: *Pane, semantic: modal.Normal.Action) v
         },
         .pipe_selection => |how| return p.startPrompt(pane, .{ .pipe = how }),
         .search => return p.startPrompt(pane, .{ .search = config.search_marker }),
-        .search_step => |direction| return p.lookWalk(
+        .search_step => |direction| return look.lookWalk(
+            p,
             if (direction == .forward) @as(i32, 1) else -1,
         ),
     }
@@ -595,8 +597,8 @@ pub fn handlePdfNormal(p: *Pardes, pane: *Pane, key: Key) void {
                     if (pane.tag_edit) pane.mode = .normal;
                 },
                 .search => p.startPrompt(pane, .{ .search = config.search_marker }),
-                .search_forward => p.lookWalk(1),
-                .search_backward => p.lookWalk(-1),
+                .search_forward => look.lookWalk(p, 1),
+                .search_backward => look.lookWalk(p, -1),
             }
         },
     }