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-rw-r--r--buffer.c47
1 files changed, 41 insertions, 6 deletions
diff --git a/buffer.c b/buffer.c
index 619842b..6ee76d9 100644
--- a/buffer.c
+++ b/buffer.c
@@ -67,6 +67,10 @@ bool buffer_is_untitled(TextBuffer *buffer) {
return false;
}
+bool buffer_is_named_file(TextBuffer *buffer) {
+ return buffer->filename && !buffer_is_untitled(buffer);
+}
+
// add this edit to the undo history
static void buffer_append_edit(TextBuffer *buffer, BufferEdit const *edit) {
// whenever an edit is made, clear the redo history
@@ -245,6 +249,8 @@ static inline Font *buffer_font(TextBuffer *buffer) {
// what programming language is this?
Language buffer_language(TextBuffer *buffer) {
+ // @TODO: cache this?
+ // (we're calling buffer_lsp on every edit and that calls this)
if (buffer->manual_language >= 1 && buffer->manual_language <= LANG_COUNT)
return (Language)(buffer->manual_language - 1);
Settings const *settings = buffer->ted->default_settings; // important we don't use buffer_settings here since that would cause a loop!
@@ -280,6 +286,11 @@ Language buffer_language(TextBuffer *buffer) {
return match;
}
+LSP *buffer_lsp(TextBuffer *buffer) {
+ return ted_get_lsp(buffer->ted, buffer_language(buffer));
+}
+
+
// score is higher if context is closer match.
static long context_score(const char *path, Language lang, const SettingsContext *context) {
long score = 0;
@@ -545,6 +556,10 @@ void buffer_check_valid(TextBuffer *buffer) {
}
}
#else
+static void buffer_pos_check_valid(TextBuffer *buffer, BufferPos p) {
+ (void)buffer; (void)p;
+}
+
void buffer_check_valid(TextBuffer *buffer) {
(void)buffer;
}
@@ -1370,10 +1385,34 @@ static Status buffer_insert_lines(TextBuffer *buffer, u32 where, u32 number) {
return false;
}
+// LSP uses UTF-16 indices because Microsoft fucking loves UTF-16 and won't let it die
+static LSPPosition buffer_pos_to_lsp(TextBuffer *buffer, BufferPos pos) {
+ LSPPosition lsp_pos = {
+ .line = pos.line
+ };
+ buffer_pos_validate(buffer, &pos);
+ const Line *line = &buffer->lines[pos.line];
+ const char32_t *str = line->str;
+ for (uint32_t i = 0; i < pos.index; ++i) {
+ if (str[i] < 0x10000)
+ lsp_pos.character += 1; // this codepoint needs 1 UTF-16 word
+ else
+ lsp_pos.character += 2; // this codepoint needs 2 UTF-16 words
+ }
+ return lsp_pos;
+}
+
static void buffer_send_lsp_did_change_request(LSP *lsp, TextBuffer *buffer, BufferPos pos,
u32 nchars_deleted, String32 new_text) {
- // @TODO
- abort();
+ if (!buffer_is_named_file(buffer))
+ return; // this isn't a named buffer so we can't send a didChange request.
+ LSPDocumentChangeEvent event = {0};
+ if (new_text.len > 0)
+ event.text = str32_to_utf8_cstr(new_text);
+ event.range.start = buffer_pos_to_lsp(buffer, pos);
+ BufferPos pos_end = buffer_pos_advance(buffer, pos, nchars_deleted);
+ event.range.end = buffer_pos_to_lsp(buffer, pos_end);
+ lsp_document_changed(lsp, buffer->filename, event);
}
// inserts the given text, returning the position of the end of the text
@@ -2054,10 +2093,6 @@ void buffer_paste(TextBuffer *buffer) {
}
}
-LSP *buffer_lsp(TextBuffer *buffer) {
- return ted_get_lsp(buffer->ted, buffer_language(buffer));
-}
-
// if an error occurs, buffer is left untouched (except for the error field) and the function returns false.
Status buffer_load_file(TextBuffer *buffer, char const *filename) {
FILE *fp = fopen(filename, "rb");