From 024fd444d673be63ac23fc83481a8fe624127cbf Mon Sep 17 00:00:00 2001
From: pommicket <pommicket@gmail.com>
Date: Wed, 11 Jan 2023 23:15:10 -0500
Subject: LANG_TEXT, turn off phantom completions for text/cfg/md files

---
 base.h      |  3 ++-
 buffer.c    | 12 +++++++++---
 lsp-write.c |  1 +
 syntax.c    |  3 +++
 ted.cfg     | 12 ++++++++++++
 5 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/base.h b/base.h
index 32229e0..a5e5299 100644
--- a/base.h
+++ b/base.h
@@ -183,7 +183,7 @@ static void print(const char *fmt, ...) {
 // If you are adding new languages, DO NOT change the constant values
 // of the previous languages. It will mess up config files which use :set-language!
 typedef enum {
-	LANG_NONE = 0,
+	LANG_NONE = 0, // avoid using this and use LANG_TEXT instead.
 	LANG_C = 1,
 	LANG_CPP = 2,
 	LANG_RUST = 3,
@@ -200,6 +200,7 @@ typedef enum {
 	LANG_JSON = 14,
 	LANG_XML = 15,
 	LANG_GLSL = 16,
+	LANG_TEXT = 17, // plain text
 	LANG_COUNT
 } Language;
 
diff --git a/buffer.c b/buffer.c
index c00d20b..605a418 100644
--- a/buffer.c
+++ b/buffer.c
@@ -218,7 +218,7 @@ static Font *buffer_font(TextBuffer *buffer) {
 // what programming language is this?
 Language buffer_language(TextBuffer *buffer) {
 	if (!buffer->path)
-		return LANG_NONE;
+		return LANG_TEXT;
 	
 	// @TODO(optimization): cache this?
 	//         (we're calling buffer_lsp on every edit and that calls this)
@@ -229,7 +229,7 @@ Language buffer_language(TextBuffer *buffer) {
 	size_t filename_len = strlen(filename);
 
 	int match_score = 0;
-	Language match = LANG_NONE;
+	Language match = LANG_TEXT;
 	
 	for (u16 l = 0; l < LANG_COUNT; ++l) {
 		const char *extensions = settings->language_extensions[l];
@@ -2759,7 +2759,7 @@ void buffer_render(TextBuffer *buffer, Rect r) {
 	Language language = buffer_language(buffer);
 	// dynamic array of character types, to be filled by syntax_highlight
 	SyntaxCharType *char_types = NULL;
-	bool syntax_highlighting = language && settings->syntax_highlighting;
+	bool syntax_highlighting = language && language != LANG_TEXT && settings->syntax_highlighting;
 
 	if (buffer->frame_latest_line_modified >= buffer->frame_earliest_line_modified
 		&& syntax_highlighting) {
@@ -2991,6 +2991,8 @@ void buffer_dedent_cursor_line(TextBuffer *buffer) {
 void buffer_comment_lines(TextBuffer *buffer, u32 first_line, u32 last_line) {
 	Language lang = buffer_language(buffer);
 	const char *start = language_comment_start(lang), *end = language_comment_end(lang);
+	if (!start[0] && !end[0])
+		return;
 	String32 start32 = str32_from_utf8(start), end32 = str32_from_utf8(end);
 	
 	buffer_start_edit_chain(buffer);
@@ -3044,6 +3046,8 @@ static bool buffer_line_ends_with_ascii(TextBuffer *buffer, u32 line_idx, const
 void buffer_uncomment_lines(TextBuffer *buffer, u32 first_line, u32 last_line) {
 	Language lang = buffer_language(buffer);
 	const char *start = language_comment_start(lang), *end = language_comment_end(lang);
+	if (!start[0] && !end[0])
+		return;
 	u32 start_len = (u32)strlen(start), end_len = (u32)strlen(end);
 	buffer_start_edit_chain(buffer);
 	for (u32 line_idx = first_line; line_idx <= last_line; ++line_idx) {
@@ -3066,6 +3070,8 @@ void buffer_uncomment_lines(TextBuffer *buffer, u32 first_line, u32 last_line) {
 void buffer_toggle_comment_lines(TextBuffer *buffer, u32 first_line, u32 last_line) {
 	Language lang = buffer_language(buffer);
 	const char *start = language_comment_start(lang), *end = language_comment_end(lang);
+	if (!start[0] && !end[0])
+		return;
 	// if first line is a comment, uncomment lines, otherwise, comment lines
 	if (buffer_line_starts_with_ascii(buffer, first_line, start)
 		&& buffer_line_ends_with_ascii(buffer, first_line, end))
diff --git a/lsp-write.c b/lsp-write.c
index 19bd766..4409593 100644
--- a/lsp-write.c
+++ b/lsp-write.c
@@ -10,6 +10,7 @@ static const char *lsp_language_id(Language lang) {
 	switch (lang) {
 	case LANG_CONFIG:
 	case LANG_TED_CFG:
+	case LANG_TEXT:
 	case LANG_NONE:
 		return "text";
 	case LANG_C:
diff --git a/syntax.c b/syntax.c
index 9b60d6a..0ff8ac9 100644
--- a/syntax.c
+++ b/syntax.c
@@ -88,6 +88,7 @@ static const LanguageName language_names[] = {
 	{LANG_JSON, "JSON"},
 	{LANG_XML, "XML"},
 	{LANG_GLSL, "GLSL"},
+	{LANG_TEXT, "Text"},
 };
 
 static_assert_if_possible(arr_count(language_names) == LANG_COUNT)
@@ -135,6 +136,7 @@ const char *language_comment_start(Language l) {
 		return "<!-- ";
 	case LANG_NONE:
 	case LANG_MARKDOWN:
+	case LANG_TEXT:
 	case LANG_COUNT:
 		break;
 	}
@@ -1728,6 +1730,7 @@ static void syntax_highlight_go(SyntaxState *state_ptr, const char32_t *line, u3
 void syntax_highlight(SyntaxState *state, Language lang, const char32_t *line, u32 line_len, SyntaxCharType *char_types) {
 	switch (lang) {
 	case LANG_NONE:
+	case LANG_TEXT:
 		if (char_types)
 			memset(char_types, 0, line_len * sizeof *char_types);
 		break;
diff --git a/ted.cfg b/ted.cfg
index df3e05b..03b69bb 100644
--- a/ted.cfg
+++ b/ted.cfg
@@ -146,6 +146,16 @@ lsp = "rust-analyzer"
 [Tex.core]
 lsp = "texlab"
 
+# phantom completions are just annoying if you're not actually programming
+[Markdown.core]
+phantom-completions = off
+[TedCfg.core]
+phantom-completions = off
+[Config.core]
+phantom-completions = off
+[Text.core]
+phantom-completions = off
+
 [keyboard]
 # motion and selection
 Left = :left
@@ -379,6 +389,8 @@ cursor-line-number = #ddf
 line-numbers-separator = #fff3
 
 [extensions]
+# text is the default if the extension doesn't match any of the ones below
+Text = .txt
 C = .c, .h
 C++ = .cpp, .hpp, .C, .H, .cxx, .hxx, .cc, .hh
 Rust = .rs
-- 
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