separate modal parsing and reuse actions for PDF navigation

1 files changed, 11 insertions, 33 deletions

diff --git a/src/modal.zig b/src/modal.zig
index cdc49142..8e36d1ae 100644
--- a/src/modal.zig
+++ b/src/modal.zig
@@ -1279,13 +1279,10 @@ test "hx increment" {
     try std.testing.expectEqual(@as(?[]u8, null), try hxIncrement(a, "", 1));
 }
 
-// ---- file-pane modal step ----
-// One keypress on an editable FILE pane. This is the single source of truth for
-// file-modal behavior: main.zig delegates file panes here, and the tutor-driven
-// unit tests (below) exercise it directly. Pure (no vaxis/ghostty/term.zig) —
-// only std + the modal primitives above. Returns the new content (caller frees
-// the old), or null if the key only moved the cursor / was a no-op (caller keeps
-// the old content, no realloc).
+// ---- retired standalone file-pane modal prototype ----
+// This old pure-std model has no production or harness callers. It remains
+// only as context for the primitive algorithms around it; normal_input.zig is
+// the sole BODY-NORMAL recognizer and Pardes owns Action execution.
 
 pub const Key = union(enum) {
     ch: u21, // a printable codepoint (insert inserts its UTF-8 bytes)
@@ -1535,9 +1532,11 @@ fn stepInsertFile(alloc: std.mem.Allocator, content: []const u8, st: *FileState,
     }
 }
 
-// The full NORMAL-mode file step (motions + insert entry + select/edit). See
-// handleNormal in main.zig for the terminal counterpart (which differs in its
-// edit ops: terminals can't delete shell output, only pasted runs).
+// RETIRED LEGACY REFERENCE INTERPRETER. Nothing in production or the test
+// harness calls this mini-parser; BODY-NORMAL recognition lives exclusively
+// in normal_input.zig and Pardes executes its semantic Actions for text/PDF.
+// Keep this frozen only as old modal-algorithm context; do not add bindings or
+// infer current behavior from it.
 pub fn stepFile(alloc: std.mem.Allocator, content: []const u8, st: *FileState, view: View, key: Key, yank: *?[]u8) !?[]u8 {
     const lines = try splitLines(alloc, content);
     defer alloc.free(lines);
@@ -1550,11 +1549,7 @@ pub fn stepFile(alloc: std.mem.Allocator, content: []const u8, st: *FileState, v
         const p = st.pending;
         st.pending = 0;
         if (p == 'g') {
-            if (chEq(key, 'g')) cur = gotoFirst()
-            else if (chEq(key, 'e')) cur = gotoLast(lines)
-            else if (chEq(key, 'h')) cur = lineStart(cur)
-            else if (chEq(key, 'l')) cur = lineEnd(lines, cur)
-            else return null; // unknown continuation: consume, no-op
+            if (chEq(key, 'g')) cur = gotoFirst() else if (chEq(key, 'e')) cur = gotoLast(lines) else if (chEq(key, 'h')) cur = lineStart(cur) else if (chEq(key, 'l')) cur = lineEnd(lines, cur) else return null; // unknown continuation: consume, no-op
             st.cur = cur;
             st.msel_active = false;
             return null;
@@ -1582,24 +1577,7 @@ pub fn stepFile(alloc: std.mem.Allocator, content: []const u8, st: *FileState, v
 
     // motions -> move cursor, collapse selection, keep visible
     var moved: ?Cursor = null;
-    if (chEq(key, 'h') or tagOf(key) == .left) moved = charLeft(cur)
-    else if (chEq(key, 'l') or tagOf(key) == .right) moved = charRight(lines, cur)
-    else if (chEq(key, 'j') or tagOf(key) == .down) moved = lineDown(lines, cur)
-    else if (chEq(key, 'k') or tagOf(key) == .up) moved = lineUp(lines, cur)
-    else if (chEq(key, 'w')) moved = nextWordStart(lines, cur, false)
-    else if (chEq(key, 'W')) moved = nextWordStart(lines, cur, true)
-    else if (chEq(key, 'b')) moved = prevWordStart(lines, cur, false)
-    else if (chEq(key, 'B')) moved = prevWordStart(lines, cur, true)
-    else if (chEq(key, 'e')) moved = nextWordEnd(lines, cur, false)
-    else if (chEq(key, 'E')) moved = nextWordEnd(lines, cur, true)
-    else if (chEq(key, '0') or tagOf(key) == .home) moved = lineStart(cur)
-    else if (chEq(key, '$') or tagOf(key) == .end) moved = lineEnd(lines, cur)
-    else if (chEq(key, '^')) moved = firstNonWsOf(lines, cur)
-    else if (chEq(key, 'G')) moved = gotoLast(lines)
-    else if (tagOf(key) == .half_down) moved = clampToChar(lines, pageDown(cur, @max(1, view.rows / 2)))
-    else if (tagOf(key) == .half_up) moved = clampToChar(lines, pageUp(cur, @max(1, view.rows / 2)))
-    else if (tagOf(key) == .page_down) moved = clampToChar(lines, pageDown(cur, view.rows))
-    else if (tagOf(key) == .page_up) moved = clampToChar(lines, pageUp(cur, view.rows));
+    if (chEq(key, 'h') or tagOf(key) == .left) moved = charLeft(cur) else if (chEq(key, 'l') or tagOf(key) == .right) moved = charRight(lines, cur) else if (chEq(key, 'j') or tagOf(key) == .down) moved = lineDown(lines, cur) else if (chEq(key, 'k') or tagOf(key) == .up) moved = lineUp(lines, cur) else if (chEq(key, 'w')) moved = nextWordStart(lines, cur, false) else if (chEq(key, 'W')) moved = nextWordStart(lines, cur, true) else if (chEq(key, 'b')) moved = prevWordStart(lines, cur, false) else if (chEq(key, 'B')) moved = prevWordStart(lines, cur, true) else if (chEq(key, 'e')) moved = nextWordEnd(lines, cur, false) else if (chEq(key, 'E')) moved = nextWordEnd(lines, cur, true) else if (chEq(key, '0') or tagOf(key) == .home) moved = lineStart(cur) else if (chEq(key, '$') or tagOf(key) == .end) moved = lineEnd(lines, cur) else if (chEq(key, '^')) moved = firstNonWsOf(lines, cur) else if (chEq(key, 'G')) moved = gotoLast(lines) else if (tagOf(key) == .half_down) moved = clampToChar(lines, pageDown(cur, @max(1, view.rows / 2))) else if (tagOf(key) == .half_up) moved = clampToChar(lines, pageUp(cur, @max(1, view.rows / 2))) else if (tagOf(key) == .page_down) moved = clampToChar(lines, pageDown(cur, view.rows)) else if (tagOf(key) == .page_up) moved = clampToChar(lines, pageUp(cur, view.rows));
     if (moved) |m| {
         st.cur = m;
         st.msel_active = false;