From 44f5bf677282308b959411c416da2b5b08db2062 Mon Sep 17 00:00:00 2001 From: Robin Haberkorn Date: Sun, 2 Aug 2026 15:24:45 +0200 Subject: support lookups via language servers (LSP) * The main interface is the `FT` command. `FT` was an undocumented Video TECO command for etags/ctags lookups. I don't want to exactly copy its interface, though. * `FT` allows looking up symbol names, definitions and references. * ctags will be supported via ctags-lsp. LSP support is more powerful though and works without regenerating TAGS files all the time. The LSP will also allow you to customize auto-completions using SciTECO itself (i.e. by writing a language server in SciTECO). * For multiple results, `FT$` can be used to cycle through results - this should mimic repeated `S$` or `N$`. * `:FT...$` does a fuzzy search. IMHO it's not important to return a status integer instead. `FT` will only really be used in interactive mode. * Document synchronization is supported via hooks from ring.c and via Scintilla notifications. * Currently, the LSP communication is based on blocking GIOChannels. This means that a misbehaving hanging server could "lock up" the entire editor (FIXME). Only on ncurses you can always kill the subprocess by pressing CTRL+C. We need helper functions in spawn.c to read and write with interruptions. * The textDocument/didChange notification transmits not only all edits, but all files' contents as well during initial synchronization. Therefore it is optimized to write and JSON-escape data without copying them around in memory and without destroying the buffer gap. * Use $SCITECO_LSP to configure the language server. You can also use `tee` to capture stdin and stdout. Perhaps $SCITECO_LSP should be saved in .teco_session, so you can change it between projects? * $SCITECO_LSP_ROOT is used to point to the project's root directory. session.tes will set it up automatically. --- src/lsp.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 src/lsp.h (limited to 'src/lsp.h') diff --git a/src/lsp.h b/src/lsp.h new file mode 100644 index 0000000..325c204 --- /dev/null +++ b/src/lsp.h @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2012-2026 Robin Haberkorn + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +#pragma once + +#include + +#include "parser.h" +#include "ring.h" + +gboolean teco_lsp_didopen(teco_buffer_t *buffer, GError **error); +gboolean teco_lsp_didchange_insert(teco_buffer_t *buffer, gsize pos, gsize len, + const gchar *text, GError **error); +gboolean teco_lsp_didchange_delete(teco_buffer_t *buffer, gsize pos, gsize len, + GError **error); +gboolean teco_lsp_didclose(teco_buffer_t *buffer, GError **error); + +gboolean teco_lsp_sync(teco_buffer_t *buffer, GError **error); + +gboolean teco_lsp_symbol_auto_complete(const gchar *symbol, teco_string_t *insert); + +extern teco_state_t teco_state_lsp_lookup; -- cgit v1.2.3