From edafe05b5b83ed855118b483ded243de17a7a9b5 Mon Sep 17 00:00:00 2001
From: Krzosa Karol <krzosa@proton.me>
Date: Wed, 31 Dec 2025 12:45:28 +0100
Subject: [PATCH] EvalCommandsLineByLine

---
 src/basic/basic_string16.cpp | 10 ++++++++
 src/text_editor/commands.cpp | 46 +++++++++++++++++++++++++++++-------
 2 files changed, 47 insertions(+), 9 deletions(-)

diff --git a/src/basic/basic_string16.cpp b/src/basic/basic_string16.cpp
index a796bdc..7761867 100644
--- a/src/basic/basic_string16.cpp
+++ b/src/basic/basic_string16.cpp
@@ -474,6 +474,16 @@ String16 SkipIdent(String16 *string) {
     return begin;
 }
 
+bool MatchIdent(String16 *string, String16 expect) {
+    String16 copy = *string;
+    String16 ident = SkipIdent(&copy);
+    if (ident == expect) {
+        *string = copy;
+        return true;
+    }
+    return false;
+}
+
 API bool Chop(String16 *string, String16 ending) {
     if (EndsWith(*string, ending)) {
         *string = Chop(*string, ending.len);
diff --git a/src/text_editor/commands.cpp b/src/text_editor/commands.cpp
index 7c50e16..cf5666a 100644
--- a/src/text_editor/commands.cpp
+++ b/src/text_editor/commands.cpp
@@ -1245,15 +1245,20 @@ void Command_ClearCarets() {
     }
 } RegisterCommand(Command_ClearCarets, "escape");
 
-void Command_Set() {
+void Set(String16 string) {
     Scratch scratch;
-    BSet set = GetBSet(ActiveWindowID);
-    Range range = set.view->carets[0].range;
-    if (GetSize(range) == 0) {
-        range = EncloseLoadWord(set.buffer, range.min);
+
+    SkipWhitespace(&string);
+    if (At(string, 0) != u':') {
+        ReportErrorf("Expected :Set");
+        return;
+    }
+    string = Skip(string, 1);
+
+    if (!MatchIdent(&string, u"Set")) {
+        ReportErrorf("Expected :Set");
+        return;
     }
-    Int line_end = GetLineEnd(set.buffer, range.min);
-    String16 string = GetString(set.buffer, {range.max, line_end});
 
     SkipWhitespace(&string);
     String16 name = SkipIdent(&string);
@@ -1346,6 +1351,29 @@ void Command_Set() {
         return;
     }
 
-
     ReportErrorf("Failed to :Set, no such variable found: %S", name8);
-} RegisterCommand(Command_Set, "");
\ No newline at end of file
+}
+
+void Command_Set() {
+    BSet set = GetBSet(ActiveWindowID);
+    Range range = set.view->carets[0].range;
+    if (GetSize(range) == 0) {
+        range = EncloseLoadWord(set.buffer, range.min);
+    }
+    Int line_end = GetLineEnd(set.buffer, range.min);
+
+    String16 string = GetString(set.buffer, {range.min, line_end});
+    Set(string);
+} RegisterCommand(Command_Set, "");
+
+void EvalCommandsLineByLine(Buffer *buffer) {
+    for (Int i = 0; i < buffer->line_starts.len; i += 1) {
+        String16 istr = GetLineString(buffer, i);
+        EvalCommand(istr);
+    }
+}
+
+void Command_EvalCommandsLineByLine() {
+    BSet set = GetBSet(LastActiveLayoutWindowID);
+    EvalCommandsLineByLine(set.buffer);
+} RegisterCommand(Command_EvalCommandsLineByLine, "");
\ No newline at end of file