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% Halibut mode for Jed.
$1 = "Halibut";
create_syntax_table ($1);
define_syntax ("\#", "", '%', $1); % Comment Syntax
define_syntax ('\\', '\\', $1); % Quote character
define_syntax ("{", "}", '(', $1); % are all these needed?
define_syntax ("a-zA-Z0-9", 'w', $1);
set_syntax_flags ($1, 8);
#ifdef HAS_DFA_SYNTAX
%enable_highlight_cache ("halibut.dfa", $1);
% A braced comment in Halibut is \#{ ... }, where ... may contain
% any correctly nested sequence of braces. Of course we can't match
% that in a DFA rule, so we'll go down to a reasonable depth of 3
% instead.
#ifexists dfa_define_highlight_rule
dfa_define_highlight_rule ("\\\\#{[^{}]*({[^{}]*({[^}]*}[^{}]*)*}[^{}]*)*}",
"Qcomment", $1);
dfa_define_highlight_rule ("\\\\#.*$", "comment", $1);
dfa_define_highlight_rule ("^\\\\c([ \t].*)?$", "string", $1);
dfa_define_highlight_rule ("\\\\[\\\\{}\\-_]", "keyword0", $1);
dfa_define_highlight_rule ("\\\\[A-Za-tv-z][A-Za-z0-9]*", "keyword0", $1);
dfa_define_highlight_rule ("\\\\u[A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9]",
"keyword0", $1);
dfa_define_highlight_rule ("\\\\u[A-Fa-f0-9]?[A-Fa-f0-9]?[A-Fa-f0-9]?[A-Fa-f0-9]",
"keyword1", $1);
dfa_define_highlight_rule ("[{}]", "delimiter", $1);
dfa_define_highlight_rule (".", "normal", $1);
dfa_build_highlight_table ($1);
#else
define_highlight_rule ("\\\\#{[^{}]*({[^{}]*({[^}]*}[^{}]*)*}[^{}]*)*}",
"Qcomment", $1);
define_highlight_rule ("\\\\#.*$", "comment", $1);
define_highlight_rule ("^\\\\c([ \t].*)?$", "string", $1);
define_highlight_rule ("\\\\[\\\\{}\\-_]", "keyword0", $1);
define_highlight_rule ("\\\\[A-Za-tv-z][A-Za-z0-9]*", "keyword0", $1);
define_highlight_rule ("\\\\u[A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9][A-Fa-f0-9]",
"keyword0", $1);
define_highlight_rule ("\\\\u[A-Fa-f0-9]?[A-Fa-f0-9]?[A-Fa-f0-9]?[A-Fa-f0-9]",
"keyword1", $1);
define_highlight_rule ("[{}]", "delimiter", $1);
define_highlight_rule (".", "normal", $1);
build_highlight_table ($1);
#endif
#endif
% This hook identifies lines containing comments as paragraph separator
define halibut_is_comment() {
bol ();
while (ffind ("\\\\#")) go_right (3);
ffind ("\\#"); % return value on stack
}
variable Halibut_Ignore_Comment = 0; % if true, line containing a comment
% does not delimit a paragraph
define halibut_paragraph_separator() {
bol();
skip_white();
if (eolp())
return 1;
if (looking_at("\\c ") or looking_at("\\c\t") or
looking_at("\\c\n"))
return 1;
return not (Halibut_Ignore_Comment) and halibut_is_comment();
}
define halibut_wrap_hook() {
variable yep;
push_spot ();
yep = up_1 () and halibut_is_comment ();
pop_spot ();
if (yep) {
push_spot ();
bol_skip_white ();
insert ("\\# ");
pop_spot ();
}
}
#ifexists mode_set_mode_info
mode_set_mode_info("Halibut", "fold_info", "\\# {{{\r\\# }}}\r\r");
#endif
define halibut_mode() {
variable mode = "Halibut";
% use_keymap (mode);
set_mode (mode, 0x1 | 0x20);
set_buffer_hook ("par_sep", "halibut_paragraph_separator");
set_buffer_hook ("wrap_hook", "halibut_wrap_hook");
use_syntax_table (mode);
runhooks ("halibut_mode_hook");
}
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