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Fix GUI paste of CRLF/CR text: split all line endings

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The ImGui Cmd+V/Ctrl+V paste handler split clipboard text only on '\n',
leaving '\r' inside each segment. Pasting text with CRLF (Windows) or bare
CR (classic-Mac / some macOS apps) line endings enqueued an InsertText arg
containing '\r', which the InsertText command rejects with "InsertText arg
must not contain newlines".

Extract the paste-to-commands logic into a pure, SDL-free helper
(PasteSplit.h) that treats '\n', '\r\n', and bare '\r' each as one line
break, and add unit tests covering all line-ending forms plus blank-line
and trailing-newline preservation.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
kyle
2026-08-03 00:20:36 -07:00
co-authored by Claude Opus 4.8
parent 3126a5e523
commit 480f1390c7
4 changed files with 160 additions and 26 deletions
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ImGuiInputHandler.cc
+6 -25
View File
@@ -8,6 +8,7 @@
#include "ImGuiInputHandler.h"
#include "KKeymap.h"
#include "Editor.h"
#include "PasteSplit.h"
// Verbose k-prefix suffix logging for debugging macOS/SDL key translation
// issues. Default to off; enable by defining IMGUI_IH_DEBUG=1 at compile
@@ -390,32 +391,12 @@ ImGuiInputHandler::ProcessSDLEvent(const SDL_Event &e)
if (clip) {
std::string text(clip);
SDL_free(clip);
// Split on '\n' and enqueue as InsertText/Newline commands
// Turn line breaks (\n, \r\n, or bare \r) into Newline
// commands and the rest into InsertText; InsertText itself
// rejects any embedded '\r'/'\n'.
std::lock_guard<std::mutex> lk(mu_);
std::size_t start = 0;
while (start <= text.size()) {
std::size_t pos = text.find('\n', start);
std::string_view segment;
bool has_nl = (pos != std::string::npos);
if (has_nl) {
segment = std::string_view(text).substr(start, pos - start);
} else {
segment = std::string_view(text).substr(start);
}
if (!segment.empty()) {
MappedInput ins{
true, CommandId::InsertText, std::string(segment), 0
};
q_.push(ins);
}
if (has_nl) {
MappedInput nl{true, CommandId::Newline, std::string(), 0};
q_.push(nl);
start = pos + 1;
} else {
break;
}
}
for (const auto &cmd : SplitPasteIntoCommands(text))
q_.push(cmd);
// Suppress the corresponding TEXTINPUT that may follow
suppress_text_input_once_ = true;
return true; // consumed