/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 1996--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Copyright (C) 1996--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
LilyPond is free software: you can redistribute it and/or modify
%option never-interactive
%option warn
-%x extratoken
%x chords
%x figures
%x incl
// swallow and ignore carriage returns
}
-<extratoken>{ANY_CHAR} {
- /* Generate a token without swallowing anything */
-
- /* First unswallow the eaten character */
- add_lexed_char (-YYLeng ());
- yyless (0);
-
- /* produce requested token */
- int type = scm_to_int (scm_caar (extra_tokens_));
- yylval = scm_cdar (extra_tokens_);
- extra_tokens_ = scm_cdr (extra_tokens_);
- if (scm_is_null (extra_tokens_))
- yy_pop_state ();
-
- return type;
-}
-
-<extratoken><<EOF>> {
- /* Generate a token without swallowing anything */
-
- /* produce requested token */
- int type = scm_to_int (scm_caar (extra_tokens_));
- yylval = scm_cdar (extra_tokens_);
- extra_tokens_ = scm_cdr (extra_tokens_);
- if (scm_is_null (extra_tokens_))
- yy_pop_state ();
-
- return type;
-}
-
/* Use the trailing context feature. Otherwise, the BOM will not be
found if the file starts with an identifier definition. */
<INITIAL,chords,lyrics,figures,notes>{BOM_UTF8}/.* {
}
}
<incl>(\$|#) { // scm for the filename
- int n = 0;
Input hi = here_input();
hi.step_forward ();
- SCM sval = ly_parse_scm (hi.start (), &n, hi,
- be_safe_global && is_main_input_, parser_);
- sval = eval_scm (sval);
+ SCM sval = ly_parse_scm (hi, be_safe_global && is_main_input_, parser_);
+ sval = eval_scm (sval, hi);
+ int n = hi.end () - hi.start ();
for (int i = 0; i < n; i++)
{
return MULTI_MEASURE_REST;
}
<INITIAL,chords,figures,lyrics,markup,notes># { //embedded scm
- int n = 0;
Input hi = here_input();
hi.step_forward ();
- SCM sval = ly_parse_scm (hi.start (), &n, hi,
- be_safe_global && is_main_input_, parser_);
+ SCM sval = ly_parse_scm (hi, be_safe_global && is_main_input_, parser_);
if (sval == SCM_UNDEFINED)
error_level_ = 1;
+ int n = hi.end () - hi.start ();
for (int i = 0; i < n; i++)
{
yyinput ();
}
<INITIAL,chords,figures,lyrics,markup,notes>\$ { //immediate scm
- int n = 0;
Input hi = here_input();
hi.step_forward ();
- SCM sval = ly_parse_scm (hi.start (), &n, hi,
- be_safe_global && is_main_input_, parser_);
+ SCM sval = ly_parse_scm (hi, be_safe_global && is_main_input_, parser_);
+
+ int n = hi.end () - hi.start ();
for (int i = 0; i < n; i++)
{
}
char_count_stack_.back () += n;
- sval = eval_scm (sval, '$');
+ sval = eval_scm (sval, hi, '$');
int token = scan_scm_id (sval);
if (!scm_is_eq (yylval, SCM_UNSPECIFIED))
// value (for token type MARKUP_FUNCTION or
// MARKUP_LIST_FUNCTION).
- push_extra_token(EXPECT_NO_MORE_ARGS);
+ push_extra_token (here_input (), EXPECT_NO_MORE_ARGS);
s = scm_cdr(s);
for (; scm_is_pair(s); s = scm_cdr(s)) {
SCM predicate = scm_car(s);
if (predicate == ly_lily_module_constant ("markup-list?"))
- push_extra_token(EXPECT_MARKUP_LIST);
+ push_extra_token (here_input (), EXPECT_MARKUP_LIST);
else if (predicate == ly_lily_module_constant ("markup?"))
- push_extra_token(EXPECT_MARKUP);
+ push_extra_token (here_input (), EXPECT_MARKUP);
else
- push_extra_token(EXPECT_SCM, predicate);
+ push_extra_token (here_input (), EXPECT_SCM, predicate);
}
return token_type;
}
/* Make the lexer generate a token of the given type as the next token.
TODO: make it possible to define a value for the token as well */
void
-Lily_lexer::push_extra_token (int token_type, SCM scm)
+Lily_lexer::push_extra_token (Input const &where, int token_type, SCM scm)
+{
+ extra_tokens_ = scm_cons (scm_cons2 (make_input (where),
+ scm_from_int (token_type),
+ scm), extra_tokens_);
+}
+
+int
+Lily_lexer::pop_extra_token ()
{
if (scm_is_null (extra_tokens_))
- {
- if (YY_START != extratoken)
- hidden_state_ = YY_START;
- yy_push_state (extratoken);
- }
- extra_tokens_ = scm_acons (scm_from_int (token_type), scm, extra_tokens_);
+ return -1;
+
+ /* produce requested token */
+ yylloc = *unsmob_input (scm_caar (extra_tokens_));
+ int type = scm_to_int (scm_cadar (extra_tokens_));
+ yylval = scm_cddar (extra_tokens_);
+ extra_tokens_ = scm_cdr (extra_tokens_);
+ return type;
}
void
void
Lily_lexer::push_note_state (SCM alist)
{
- bool extra = (YYSTATE == extratoken);
-
SCM p = scm_assq (alist, pitchname_tab_stack_);
- if (extra)
- yy_pop_state ();
-
if (scm_is_false (p))
p = scm_cons (alist, alist_to_hashq (alist));
pitchname_tab_stack_ = scm_cons (p, pitchname_tab_stack_);
yy_push_state (notes);
-
- if (extra) {
- hidden_state_ = YYSTATE;
- yy_push_state (extratoken);
- }
}
void
Lily_lexer::pop_state ()
{
- bool extra = (YYSTATE == extratoken);
-
- if (extra)
- yy_pop_state ();
-
if (YYSTATE == notes || YYSTATE == chords)
pitchname_tab_stack_ = scm_cdr (pitchname_tab_stack_);
if (YYSTATE != maininput)
yy_pop_state ();
- if (extra) {
- hidden_state_ = YYSTATE;
- yy_push_state (extratoken);
- }
}
int
funtype = SCM_FUNCTION;
else programming_error ("Bad syntax function predicate");
- push_extra_token (EXPECT_NO_MORE_ARGS);
+ push_extra_token (here_input (), EXPECT_NO_MORE_ARGS);
for (s = scm_cdr (s); scm_is_pair (s); s = scm_cdr (s))
{
SCM optional = SCM_UNDEFINED;
}
if (ly_is_procedure (cs))
- push_extra_token (EXPECT_SCM, cs);
+ push_extra_token (here_input (), EXPECT_SCM, cs);
else
{
programming_error ("Function parameter without type-checking predicate");
continue;
}
if (!scm_is_eq (optional, SCM_UNDEFINED))
- push_extra_token (EXPECT_OPTIONAL, optional);
+ push_extra_token (here_input (), EXPECT_OPTIONAL, optional);
}
return funtype;
}
int
Lily_lexer::get_state () const
{
- if (YY_START == extratoken)
- return hidden_state_;
- else
- return YY_START;
+ return YY_START;
}
bool
// this function is private.
SCM
-Lily_lexer::eval_scm (SCM readerdata, char extra_token)
+Lily_lexer::eval_scm (SCM readerdata, Input hi, char extra_token)
{
SCM sval = SCM_UNDEFINED;
if (!SCM_UNBNDP (readerdata))
{
- sval = ly_eval_scm (scm_car (readerdata),
- *unsmob_input (scm_cdr (readerdata)),
+ sval = ly_eval_scm (readerdata,
+ hi,
be_safe_global && is_main_input_,
parser_);
}
case '$':
token = scan_scm_id (v);
if (!scm_is_eq (yylval, SCM_UNSPECIFIED))
- push_extra_token (token, yylval);
+ push_extra_token (here_input (),
+ token, yylval);
break;
case '#':
- push_extra_token (SCM_IDENTIFIER, v);
+ push_extra_token (here_input (),
+ SCM_IDENTIFIER, v);
break;
}
}
projects / lilypond.git / blobdiff