Refactor the folder structure which only had 2 'real' modules, now it's more real, no need for splitting into folders beside the external one
This commit is contained in:
Krzosa Karol
252
src/plugin_word_complete.cpp
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252
src/plugin_word_complete.cpp
Normal file
@@ -0,0 +1,252 @@
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// MAAAAAAAAAAAAN I DONT LIKE THIS CODE, BUT HOPE IT WORKS
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// @todo: potentially bad that we are not checking against end! lexer->at[0] == 0 check is not enough
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struct Lexer2 {
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char16_t *at;
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};
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Lexer2 BeginLexing(String16 data) {
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Lexer2 result = {data.data};
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return result;
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}
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String16 Next(Lexer2 *lexer) {
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while (lexer->at[0] != 0 && IsNonWord(lexer->at[0])) {
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lexer->at += 1;
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}
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String16 result = {lexer->at, 0};
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while (lexer->at[0] != 0 && IsWord(lexer->at[0])) {
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lexer->at += 1;
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result.len += 1;
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}
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return result;
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}
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struct StringAndDistance {
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String16 string;
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Int distance;
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};
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Int FindValueIndex(Array<StringAndDistance> *arr, String16 string) {
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for (int64_t i = 0; i < arr->len; i += 1) {
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if (arr->data[i].string == string) {
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return i;
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}
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}
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return -1;
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}
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inline bool MergeSortCompare(StringAndDistance *EntryA, StringAndDistance *EntryB) {
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bool result = EntryA->distance > EntryB->distance;
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return result;
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}
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struct {
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BlockArena arena;
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String16 prefix_string;
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String16 last_string;
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mco_coro *co;
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Buffer *buffer;
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View *view;
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Int original_caret_pos;
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Int direction;
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} CWS;
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void CWSLexIdentifiers(Array<StringAndDistance> *out_idents, Buffer *buffer) {
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Array<StringAndDistance> idents = {CWS.arena};
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String16 string = GetString(buffer);
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Lexer2 lexer = BeginLexing(string.data);
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for (;;) {
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String16 token = Next(&lexer);
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if (token.len <= 0) {
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break;
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}
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if (StartsWith(token, CWS.prefix_string) && token != CWS.prefix_string) {
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Int pos = token.data - buffer->str;
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// Here we are computing distance based on position from currently open
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// buffer but should be fine. We are sorting then putting into the array
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// and it doesn't displace the original ones so it's fine
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Int distance = Absolute(CWS.original_caret_pos - pos);
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int64_t value_index = FindValueIndex(&idents, token);
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if (value_index != -1) {
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if (idents[value_index].distance > distance) {
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idents[value_index].distance = distance;
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}
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} else {
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Add(&idents, {Copy16(CWS.arena, token), distance});
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}
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}
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}
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if (idents.len > 1) {
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Array<StringAndDistance> temp = TightCopy(CWS.arena, idents);
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MergeSort(idents.len, idents.data, temp.data);
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}
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For (idents) {
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if (FindValueIndex(out_idents, it.string) == -1) Add(out_idents, it);
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}
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}
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#if 0
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void CWSGetNextBuffer(mco_coro *co) {
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// Would be nice to iterate through 64 last active buffers
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// - Then all buffers
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Add(&CWS.visited_buffers, CWS.buffer->id);
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mco_result res = mco_push(co, &CWS.buffer->id, sizeof(CWS.buffer->id));
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Assert(res == MCO_SUCCESS);
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mco_yield(co);
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For (IterateInReverse(&Buffers)) {
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Add(&buffers, it->id);
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}
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ForItem (window, Windows) {
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if (!window->visible) {
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continue;
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}
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View *view = GetView(window->active_view);
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Buffer *buffer = GetBuffer(view->active_buffer);
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if (Contains(CWS.visited_buffers, buffer->id)) {
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continue;
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}
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Add(&CWS.visited_buffers, buffer->id);
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mco_result res = mco_push(co, &buffer->id, sizeof(buffer->id));
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Assert(res == MCO_SUCCESS);
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mco_yield(co);
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}
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}
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#endif
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void WordComplete(mco_coro *co) {
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Array<BufferID> buffers = {CWS.arena};
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Add(&buffers, CWS.buffer->id);
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For (IterateInReverse(&Buffers)) {
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Add(&buffers, it->id);
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}
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Int buffer_i = 0;
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Array<StringAndDistance> idents = {CWS.arena};
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Add(&idents, {CWS.prefix_string, 0});
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for (Int i = 1;;) {
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if (i >= idents.len) {
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while (buffer_i < buffers.len) {
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Buffer *buffer = GetBuffer(buffers[buffer_i++]);
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CWSLexIdentifiers(&idents, buffer);
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if (i < idents.len) {
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break;
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}
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}
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if (i >= idents.len) {
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goto yield;
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}
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}
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CWS.last_string = Copy16(CWS.arena, idents[i].string);
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SelectRange(CWS.view, EncloseWord(CWS.buffer, CWS.original_caret_pos));
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Replace(CWS.view, CWS.last_string);
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yield:;
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mco_yield(co);
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if (CWS.direction == -1 && i > 0 && i == idents.len) {
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// special case for when we are at the end of the list and we want to go back
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// to make it sure we don't need to click twice to flip
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i -= 1;
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}
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i += CWS.direction;
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i = Clamp(i, (Int)0, idents.len);
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}
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}
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void WordComplete(View *view, Int pos) {
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Buffer *buffer = GetBuffer(view->active_buffer);
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Range prefix_string_range = {GetWordStart(buffer, pos), pos};
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String16 prefix = GetString(buffer, prefix_string_range);
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if (prefix == u"") {
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return;
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}
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bool continue_with_previous = CWS.co && CWS.last_string == prefix && CWS.buffer == buffer && CWS.view == view;
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if (!continue_with_previous) {
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if (CWS.co) {
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mco_result res = mco_destroy(CWS.co);
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Assert(res == MCO_SUCCESS);
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CWS.co = NULL;
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}
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Release(&CWS.arena);
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MemoryZero(&CWS, sizeof(CWS));
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// CWS.visited_buffers.allocator = CWS.arena;
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CWS.buffer = buffer;
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CWS.view = view;
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CWS.original_caret_pos = pos;
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CWS.prefix_string = Copy16(CWS.arena, prefix);
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mco_desc desc = mco_desc_init(WordComplete, 0);
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mco_result res = mco_create(&CWS.co, &desc);
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Assert(res == MCO_SUCCESS);
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}
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CWS.direction = 1;
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mco_result res = mco_resume(CWS.co);
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Assert(res == MCO_SUCCESS);
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if (mco_status(CWS.co) == MCO_DEAD) {
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res = mco_destroy(CWS.co);
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Assert(res == MCO_SUCCESS);
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CWS.co = NULL;
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}
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}
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void CompletePrevWord(View *view, Int pos) {
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Buffer *buffer = GetBuffer(view->active_buffer);
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Range prefix_string_range = {GetWordStart(buffer, pos), pos};
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String16 prefix = GetString(buffer, prefix_string_range);
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bool continue_with_previous = CWS.co && CWS.last_string == prefix && CWS.buffer == buffer;
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if (!continue_with_previous) {
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return;
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}
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CWS.direction = -1;
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mco_result res = mco_resume(CWS.co);
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Assert(res == MCO_SUCCESS);
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if (mco_status(CWS.co) == MCO_DEAD) {
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res = mco_destroy(CWS.co);
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Assert(res == MCO_SUCCESS);
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CWS.co = NULL;
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}
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}
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void CMD_WordComplete() {
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BSet active = GetBSet(ActiveWindowID);
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bool ok = active.view->carets.len == 1 && GetSize(active.view->carets[0].range) == 0;
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if (!ok) {
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return;
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}
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WordComplete(active.view, active.view->carets[0].range.min);
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} RegisterCommand(CMD_WordComplete, "ctrl-space", "Completes the current word");
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void CMD_CompletePrevWord() {
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BSet active = GetBSet(ActiveWindowID);
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bool ok = active.view->carets.len == 1 && GetSize(active.view->carets[0].range) == 0;
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if (!ok) {
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return;
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}
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CompletePrevWord(active.view, active.view->carets[0].range.min);
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} RegisterCommand(CMD_CompletePrevWord, "ctrl-shift-space", "If already completing a word, iterate to previous word");
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void CMD_CompletePrevWordOrDedent() {
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BSet active = GetBSet(ActiveWindowID);
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if (active.view->carets.len == 1 && GetSize(active.view->carets[0].range) == 0) {
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CMD_CompletePrevWord();
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} else {
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IndentSelectedLines(active.view, true);
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}
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} RegisterCommand(CMD_CompletePrevWordOrDedent, "", "Completes the current word or it indents it, when single caret with no selection it goes for word complete");
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void CMD_WordCompleteOrIndent() {
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BSet active = GetBSet(ActiveWindowID);
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if (active.view->carets.len == 1 && GetSize(active.view->carets[0].range) == 0) {
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CMD_WordComplete();
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} else {
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IndentSelectedLines(active.view);
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}
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} RegisterCommand(CMD_WordCompleteOrIndent, "", "Completes the current word or it indents it, when single caret with no selection it goes for word complete");
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