diff options
Diffstat (limited to 'syntax.c')
| -rw-r--r-- | syntax.c | 159 |
1 files changed, 159 insertions, 0 deletions
@@ -30,6 +30,11 @@ enum { }; enum { + SYNTAX_STATE_GDSCRIPT_STRING = 0x01u, // multiline strings (''' and """) + SYNTAX_STATE_GDSCRIPT_STRING_DBL_QUOTED = 0x02u, // is this a """ string, as opposed to a ''' string? +}; + +enum { SYNTAX_STATE_TEX_DOLLAR = 0x01u, // inside math $ ... $ SYNTAX_STATE_TEX_DOLLARDOLLAR = 0x02u, // inside math $$ ... $$ SYNTAX_STATE_TEX_VERBATIM = 0x04u, // inside \begin{verbatim} ... \end{verbatim} @@ -2016,6 +2021,154 @@ static void syntax_highlight_css(SyntaxState *state_ptr, const char32_t *line, u ); } +static void syntax_highlight_gdscript(SyntaxState *state, const char32_t *line, u32 line_len, SyntaxCharType *char_types) { + (void)state; + bool in_string = (*state & SYNTAX_STATE_GDSCRIPT_STRING) != 0; + bool string_is_dbl_quoted = (*state & SYNTAX_STATE_GDSCRIPT_STRING_DBL_QUOTED) != 0; + bool string_is_multiline = true; + bool in_number = false; + u32 backslashes = 0; + + for (u32 i = 0; i < line_len; ++i) { + char32_t c = line[i]; + bool dealt_with = false; + switch (c) { + case '#': + if (!in_string) { + // comment + if (char_types) { + for (u32 j = i; j < line_len; ++j) + char_types[j] = syntax_highlight_comment(line, j, line_len); + dealt_with = true; + } + i = line_len - 1; + } + break; + case '@': + if (char_types && !in_string + && i+1 < line_len + && is32_word(line[i+1])) { + // annotations (e.g. @onready) + char_types[i++] = SYNTAX_PREPROCESSOR; + while (i < line_len) { + if (!is32_word(line[i])) { + --i; + dealt_with = true; + break; + } + char_types[i++] = SYNTAX_PREPROCESSOR; + } + } + break; + case '$': + case '^': + case '&': + case '%': + if (char_types + && i && i+1 < line_len + && !is32_word(line[i-1]) + && (is32_word(line[i+1]) || line[i+1] == '/')) { + // unquoted StringName/node literal + char_types[i++] = SYNTAX_STRING; + while (i < line_len) { + if (!(is32_word(line[i]) || line[i] == '/')) { + --i; + dealt_with = true; + break; + } + char_types[i++] = SYNTAX_STRING; + } + } + break; + case '\'': + case '"': { + bool dbl_quoted = c == '"'; + bool is_triple = i+2 < line_len && + line[i+1] == c && line[i+2] == c; + if (in_string) { + if (!string_is_multiline || is_triple) { + if (string_is_dbl_quoted == dbl_quoted && backslashes % 2 == 0) { + // end of string + in_string = false; + if (char_types) { + char_types[i] = SYNTAX_STRING; + if (string_is_multiline) { + // highlight all three ending quotes + char_types[++i] = SYNTAX_STRING; + char_types[++i] = SYNTAX_STRING; + } + dealt_with = true; + } + } + } + } else { + // start of string + string_is_dbl_quoted = dbl_quoted; + in_string = true; + string_is_multiline = is_triple; + if (char_types && i && line[i-1] < CHAR_MAX && strchr("&^$%", (char)line[i-1])) { + // quoted StringName/node path literal + char_types[i-1] = SYNTAX_STRING; + } + } + } break; + case ANY_DIGIT: + if (char_types && !in_string && !in_number) { + in_number = true; + if (i) { + if (line[i - 1] == '.') { + // support .6, for example + char_types[i - 1] = SYNTAX_CONSTANT; + } else if (is32_word(line[i - 1])) { + // actually, this isn't a number. it's something like a*6* or u3*2*. + in_number = false; + } + } + } + break; + case '\\': + ++backslashes; + break; + default: + if ((i && is32_word(line[i - 1])) || !is32_word(c)) + break; // can't be a keyword on its own. + + if (char_types && !in_string && !in_number) { + u32 keyword_len = syntax_keyword_len(LANG_GDSCRIPT, line, i, line_len); + Keyword const *keyword = syntax_keyword_lookup(syntax_all_keywords_gdscript, &line[i], keyword_len); + if (keyword) { + SyntaxCharType type = keyword->type; + for (size_t j = 0; j < keyword_len; ++j) { + char_types[i++] = type; + } + --i; // we'll increment i from the for loop + dealt_with = true; + break; + } + } + break; + } + if (c != '\\') backslashes = 0; + if (in_number && !syntax_number_continues(LANG_GDSCRIPT, line, line_len, i)) + in_number = false; + + if (char_types && !dealt_with) { + SyntaxCharType type = SYNTAX_NORMAL; + if (in_string) + type = SYNTAX_STRING; + else if (in_number) + type = SYNTAX_CONSTANT; + char_types[i] = type; + } + } + *state = 0; + if (in_string && string_is_multiline) { + *state |= (SyntaxState)( + SYNTAX_STATE_GDSCRIPT_STRING + | (SYNTAX_STATE_GDSCRIPT_STRING_DBL_QUOTED * string_is_dbl_quoted) + ); + } +} typedef struct { Language lang; @@ -2177,6 +2330,12 @@ void syntax_init(void) { .lsp_identifier = "css", .highlighter = syntax_highlight_css }, + { + .id = LANG_GDSCRIPT, + .name = "GDScript", + .lsp_identifier = "gdscript", + .highlighter = syntax_highlight_gdscript + }, }; for (size_t i = 0; i < arr_count(builtins); ++i) { |