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-rw-r--r--syntax.c37
1 files changed, 35 insertions, 2 deletions
diff --git a/syntax.c b/syntax.c
index 3b477e9..5b06d2f 100644
--- a/syntax.c
+++ b/syntax.c
@@ -326,7 +326,9 @@ static void syntax_highlight_rust(SyntaxState *state, char32_t const *line, u32
bool in_string = (*state & SYNTAX_STATE_RUST_STRING) != 0;
bool string_is_raw = (*state & SYNTAX_STATE_RUST_STRING_IS_RAW) != 0;
bool in_number = false;
- uint backslashes = 0;
+ bool in_attribute = false;
+ int backslashes = 0;
+ int bracket_depth = 0;
for (u32 i = 0; i < line_len; ++i) {
char32_t c = line[i];
@@ -426,10 +428,39 @@ static void syntax_highlight_rust(SyntaxState *state, char32_t const *line, u32
}
}
break;
+ case '[':
+ if (in_attribute && !in_string && !comment_depth) {
+ ++bracket_depth;
+ }
+ break;
+ case ']':
+ if (in_attribute && !in_string && !comment_depth) {
+ --bracket_depth;
+ if (bracket_depth < 0) {
+ in_attribute = false;
+ }
+ }
+ break;
+ case '#':
+ if (!in_string && !comment_depth) {
+ if (i && line[i-1] == 'r') {
+ // raw identifier -- not an attribute
+ break;
+ }
+ if (!has_2_chars) break;
+ if (line[i+1] == '[' || (line[i+1] == '!' && line[i+2] == '[')) {
+ in_attribute = true;
+ bracket_depth = 0;
+ }
+ }
+ break;
default: {
if ((i && is32_ident(line[i - 1])) || !is32_ident(c))
break; // can't be a keyword on its own.
-
+ if (i >= 2 && line[i-2] == 'r' && line[i-1] == '#') {
+ // raw identifier
+ break;
+ }
if (char_types && !in_string && !comment_depth && !in_number) {
u32 keyword_len = syntax_keyword_len(LANG_RUST, line, i, line_len);
Keyword const *keyword = syntax_keyword_lookup(syntax_all_keywords_rust, arr_count(syntax_all_keywords_rust),
@@ -458,6 +489,8 @@ static void syntax_highlight_rust(SyntaxState *state, char32_t const *line, u32
type = SYNTAX_STRING;
} else if (in_number) {
type = SYNTAX_CONSTANT;
+ } else if (in_attribute) {
+ type = SYNTAX_PREPROCESSOR;
}
char_types[i] = type;
}