Hi,
The attached patch cleans up music functions:
- functions can have any arity, and parameters can be mixed in any way.
- implementation: A music function generates a sequence of tokens, so e.g. a
(markup? music? scm?) function generates tokens MUSIC_FUNCTION EXPECT_SCM
EXPECT_MUSIC EXPECT_MARKUP. After that it's easy to write a grammar to parse
the argument list.
- there is still a restriction on 'event functions': A function can only be
applied to a post-event or chord-element if the function has exactly one
music parameter, and if that parameter is last. If this rule is violated,
there will be confusing parser errors ("unexpected EXPECT_MUSIC") due my
implementation, but I also added an error message which describes the problem
in English.
--
Erik
? .sconf_temp
? build-stamp
? context-unique.diff
? def-rel-music-funciton.diff
? delay-music-functions.diff
? exjobb.diff3
? fonts
? lib
? lilypond.kdevelop
? lilypond.kdevelop.pcs
? lilypond.kdevses
? optimized
? os
? ref1.diff
? ref2.diff
? repeat.diff
? scons.cache
? web-err
? web-out
? Documentation/out
? Documentation/out-www
? Documentation/bibliography/out
? Documentation/bibliography/out-www
? Documentation/misc/out
? Documentation/misc/out-www
? Documentation/pictures/out
? Documentation/pictures/out-www
? Documentation/topdocs/out
? Documentation/topdocs/out-www
? Documentation/user/out
? Documentation/user/out-www
? buildscripts/out
? buildscripts/out-www
? cygwin/out
? cygwin/out-www
? debian/out
? elisp/out
? elisp/out-www
? flower/out
? flower/out-scons
? flower/out-www
? flower/include/.sconsign
? flower/include/out
? flower/include/out-www
? input/Diagram1.dia.autosave
? input/les-nereides.pdf
? input/les-nereides.ps
? input/out
? input/out-www
? input/manual/out
? input/manual/out-www
? input/mutopia/out
? input/mutopia/out-www
? input/mutopia/E.Satie/out
? input/mutopia/E.Satie/out-www
? input/mutopia/F.Schubert/morgenlied.midi
? input/mutopia/F.Schubert/morgenlied.pdf
? input/mutopia/F.Schubert/morgenlied.ps
? input/mutopia/F.Schubert/out
? input/mutopia/F.Schubert/out-www
? input/mutopia/J.S.Bach/out
? input/mutopia/J.S.Bach/out-www
? input/mutopia/R.Schumann/out
? input/mutopia/R.Schumann/out-www
? input/mutopia/W.A.Mozart/out
? input/mutopia/W.A.Mozart/out-www
? input/no-notation/out
? input/no-notation/out-www
? input/no-notation/to-xml.pdf
? input/no-notation/to-xml.ps
? input/regression/chord-tremolo.pdf
? input/regression/chord-tremolo.ps
? input/regression/out
? input/regression/out-www
? input/template/out
? input/test/new
? input/test/out
? input/test/out-www
? input/tutorial/out
? input/tutorial/out-www
? kpath-guile/out
? kpath-guile/out-scons
? lily/On
? lily/busy-playing-listener.cc
? lily/foo.pdf
? lily/foo.ps
? lily/lilypond
? lily/lilypond.gdt
? lily/lilypond.gpr
? lily/out
? lily/out-scons
? lily/out-www
? lily/include/.sconsign
? lily/include/busy-playing-listener.hh
? lily/include/out
? lily/include/out-www
? ly/out
? ly/out-www
? make/out
? make/out-www
? mf/feta-alphabet11.600pk
? mf/feta-alphabet13.600pk
? mf/feta-alphabet14.600pk
? mf/feta-alphabet16.600pk
? mf/feta-alphabet18.600pk
? mf/feta-alphabet20.600pk
? mf/feta-alphabet23.600pk
? mf/feta-alphabet26.600pk
? mf/feta-braces-a.600pk
? mf/feta-braces-b.600pk
? mf/feta-braces-c.600pk
? mf/feta-braces-d.600pk
? mf/feta-braces-e.600pk
? mf/feta-braces-f.600pk
? mf/feta-braces-g.600pk
? mf/feta-braces-h.600pk
? mf/feta-braces-i.600pk
? mf/feta11.600pk
? mf/feta13.600pk
? mf/feta14.600pk
? mf/feta16.600pk
? mf/feta18.600pk
? mf/feta20.600pk
? mf/feta23.600pk
? mf/feta26.600pk
? mf/out
? mf/out-scons
? mf/out-www
? mf/parmesan11.600pk
? mf/parmesan13.600pk
? mf/parmesan14.600pk
? mf/parmesan16.600pk
? mf/parmesan18.600pk
? mf/parmesan20.600pk
? mf/parmesan23.600pk
? mf/parmesan26.600pk
? po/out
? po/out-www
? ps/out
? ps/out-www
? python/convertrules.pyc
? python/fontextract.pyc
? python/lilylib.pyc
? python/out
? python/out-www
? scm/out
? scm/out-www
? scripts/lilypond-book-36.py
? scripts/lilypond-book.py.new
? scripts/out
? scripts/out-www
? scripts/stat
? stepmake/out
? stepmake/out-www
? stepmake/bin/out
? stepmake/bin/out-www
? stepmake/bin/packagepython.pyc
? stepmake/stepmake/out
? stepmake/stepmake/out-www
? tex/out
? tex/out-www
? ttftool/out
? ttftool/out-scons
? ttftool/include/.sconsign
? ttftool/include/out
? vim/out
? vim/out-www
Index: lily/lexer.ll
===================================================================
RCS file: /sources/lilypond/lilypond/lily/lexer.ll,v
retrieving revision 1.196
diff -u -r1.196 lexer.ll
--- lily/lexer.ll 23 Aug 2006 20:43:29 -0000 1.196
+++ lily/lexer.ll 25 Aug 2006 06:13:45 -0000
@@ -43,6 +43,7 @@
#include "lily-lexer.hh"
#include "lilypond-input-version.hh"
#include "main.hh"
+#include "music.hh"
#include "music-function.hh"
#include "parse-scm.hh"
#include "parser.hh"
@@ -60,7 +61,6 @@
void strip_trailing_white (string&);
void strip_leading_white (string&);
string lyric_fudge (string s);
-int music_function_type (SCM);
SCM lookup_markup_command (string s);
bool is_valid_version (string s);
@@ -103,6 +103,7 @@
%option never-interactive
%option warn
+%x extratoken
%x chords
%x figures
%x incl
@@ -153,6 +154,22 @@
// windows-suck-suck-suck
}
+<extratoken>. {
+ /* Generate a token without swallowing anything */
+
+ /* First unswallow the eaten character */
+ add_lexed_char (-YYLeng ());
+ yyless (0);
+
+ /* produce requested token */
+ int type = extra_token_types_.back ();
+ extra_token_types_.pop_back ();
+ if (extra_token_types_.empty ())
+ yy_pop_state ();
+
+ return type;
+}
+
<INITIAL,chords,lyrics,figures,notes>{BOM_UTF8} {
if (this->lexloc->line_number () != 1 || this->lexloc->column_number () != 0)
{
@@ -646,6 +663,18 @@
%%
+/* 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)
+{
+ if (extra_token_types_.empty ())
+ {
+ yy_push_state (extratoken);
+ }
+ extra_token_types_.push_back (token_type);
+}
+
void
Lily_lexer::push_chord_state (SCM tab)
{
@@ -717,7 +746,19 @@
if (is_music_function (sid))
{
yylval.scm = get_music_function_transform (sid);
- return music_function_type (yylval.scm);
+
+ SCM s = scm_object_property (yylval.scm, ly_symbol2scm ("music-function-signature"));
+ for (; scm_is_pair (s); s = scm_cdr (s))
+ {
+ if (scm_car (s) == ly_music_p_proc)
+ push_extra_token (EXPECT_MUSIC);
+ else if (scm_car (s) == ly_lily_module_constant ("markup?"))
+ push_extra_token (EXPECT_MARKUP);
+ else if (ly_is_procedure (scm_car (s)))
+ push_extra_token (EXPECT_SCM);
+ else programming_error ("Function parameter without type-checking predicate");
+ }
+ return MUSIC_FUNCTION;
}
if (sid != SCM_UNDEFINED)
@@ -880,59 +921,6 @@
return scm_call_1 (proc, scm_makfrom0str (s.c_str ()));
}
-struct Parser_signature
-{
- char *symbol;
- int token_type;
-};
-static SCM signature_hash_table;
-
-static void init_signature_hash_table ()
-{
- signature_hash_table = scm_gc_protect_object (scm_c_make_hash_table (31));
- Parser_signature sigs[] = {
- {"scm", MUSIC_FUNCTION_SCM},
- {"music", MUSIC_FUNCTION_MUSIC},
- {"scm-music", MUSIC_FUNCTION_SCM_MUSIC},
- {"scm-scm", MUSIC_FUNCTION_SCM_SCM},
- {"music-music", MUSIC_FUNCTION_MUSIC_MUSIC},
- {"scm-music-music", MUSIC_FUNCTION_SCM_MUSIC_MUSIC},
- {"scm-scm-music-music", MUSIC_FUNCTION_SCM_SCM_MUSIC_MUSIC},
- {"scm-scm-music", MUSIC_FUNCTION_SCM_SCM_MUSIC},
- {"scm-scm-scm-music", MUSIC_FUNCTION_SCM_SCM_SCM_SCM_MUSIC},
- {"scm-scm-scm-scm-music", MUSIC_FUNCTION_SCM_SCM_SCM_MUSIC},
- {"scm-scm-scm", MUSIC_FUNCTION_SCM_SCM_SCM},
- {"markup", MUSIC_FUNCTION_MARKUP},
- {"markup-music", MUSIC_FUNCTION_MARKUP_MUSIC},
- {"markup-markup", MUSIC_FUNCTION_MARKUP_MARKUP},
- {"markup-music-music", MUSIC_FUNCTION_MARKUP_MUSIC_MUSIC},
- {"markup-markup-music", MUSIC_FUNCTION_MARKUP_MARKUP_MUSIC},
- {"noarg", MUSIC_FUNCTION},
- {0,0}
- };
-
- for (int i = 0; sigs[i].symbol; i++)
- scm_hashq_set_x (signature_hash_table, ly_symbol2scm (sigs[i].symbol),
- scm_from_int (sigs[i].token_type));
-}
-
-int
-music_function_type (SCM func)
-{
- if (!signature_hash_table)
- init_signature_hash_table ();
-
- SCM type = scm_object_property (func, ly_symbol2scm ("music-function-signature-keyword"));
- SCM token_type = scm_hashq_ref (signature_hash_table, type, SCM_BOOL_F);
- if (!scm_is_number (token_type))
- {
- programming_error (_ ("can't find signature for music function"));
- return MUSIC_FUNCTION_SCM;
- }
-
- return scm_to_int (token_type);
-}
-
/* Shut up lexer warnings. */
#if YY_STACK_USED
Index: lily/music-function.cc
===================================================================
RCS file: /sources/lilypond/lilypond/lily/music-function.cc,v
retrieving revision 1.18
diff -u -r1.18 music-function.cc
--- lily/music-function.cc 11 Feb 2006 11:35:17 -0000 1.18
+++ lily/music-function.cc 25 Aug 2006 06:13:45 -0000
@@ -35,26 +35,9 @@
{
extern SCM ly_music_p_proc;
- string str = "";
- for (SCM s = signature; scm_is_pair (s); s = scm_cdr (s))
- {
- if (str != "")
- str += "-";
-
- if (scm_car (s) == ly_music_p_proc)
- str += "music";
- else if (scm_car (s) == ly_lily_module_constant ("markup?"))
- str += "markup";
- else if (ly_is_procedure (scm_car (s)))
- str += "scm";
- }
- if (str == "") str = "noarg";
scm_set_object_property_x (func, ly_symbol2scm ("music-function-signature"),
signature);
- scm_set_object_property_x (func, ly_symbol2scm ("music-function-signature-keyword"),
- ly_symbol2scm (str.c_str ()));
-
SCM_RETURN_NEWSMOB (music_function_tag, func);
}
Index: lily/parser.yy
===================================================================
RCS file: /sources/lilypond/lilypond/lily/parser.yy,v
retrieving revision 1.526
diff -u -r1.526 parser.yy
--- lily/parser.yy 23 Aug 2006 21:19:36 -0000 1.526
+++ lily/parser.yy 25 Aug 2006 06:13:45 -0000
@@ -256,6 +256,11 @@
%token <i> E_UNSIGNED
%token <i> UNSIGNED
+/* Artificial tokens, for more generic function syntax */
+%token <i> EXPECT_MARKUP;
+%token <i> EXPECT_MUSIC;
+%token <i> EXPECT_SCM;
+
%token <scm> BOOK_IDENTIFIER
%token <scm> CHORDMODIFIER_PITCH
%token <scm> CHORD_MODIFIER
@@ -277,22 +282,6 @@
%token <scm> MARKUP_HEAD_SCM0_SCM1_SCM2
%token <scm> MARKUP_IDENTIFIER
%token <scm> MUSIC_FUNCTION
-%token <scm> MUSIC_FUNCTION_MARKUP
-%token <scm> MUSIC_FUNCTION_MARKUP_MARKUP
-%token <scm> MUSIC_FUNCTION_MARKUP_MARKUP_MUSIC
-%token <scm> MUSIC_FUNCTION_MARKUP_MUSIC
-%token <scm> MUSIC_FUNCTION_MARKUP_MUSIC_MUSIC
-%token <scm> MUSIC_FUNCTION_MUSIC
-%token <scm> MUSIC_FUNCTION_MUSIC_MUSIC
-%token <scm> MUSIC_FUNCTION_SCM
-%token <scm> MUSIC_FUNCTION_SCM_MUSIC
-%token <scm> MUSIC_FUNCTION_SCM_MUSIC_MUSIC
-%token <scm> MUSIC_FUNCTION_SCM_SCM_MUSIC_MUSIC
-%token <scm> MUSIC_FUNCTION_SCM_SCM
-%token <scm> MUSIC_FUNCTION_SCM_SCM_MUSIC
-%token <scm> MUSIC_FUNCTION_SCM_SCM_SCM
-%token <scm> MUSIC_FUNCTION_SCM_SCM_SCM_MUSIC
-%token <scm> MUSIC_FUNCTION_SCM_SCM_SCM_SCM_MUSIC
%token <scm> MUSIC_IDENTIFIER
%token <scm> NOTENAME_PITCH
%token <scm> NUMBER_IDENTIFIER
@@ -361,10 +350,6 @@
%type <scm> absolute_pitch
%type <scm> assignment_id
%type <scm> bare_number
-%type <scm> music_function_event
-%type <scm> music_function_chord_body
-%type <scm> music_function_musicless_prefix
-%type <scm> music_function_musicless_function
%type <scm> bass_figure
%type <scm> figured_bass_modification
%type <scm> br_bass_figure
@@ -386,6 +371,11 @@
%type <scm> figure_spec
%type <scm> fraction
%type <scm> full_markup
+%type <scm> function_scm_argument
+%type <scm> function_arglist
+%type <scm> function_arglist_music_last
+%type <scm> function_arglist_nonmusic_last
+%type <scm> function_arglist_nonmusic
%type <scm> identifier_init
%type <scm> lilypond_header
%type <scm> lilypond_header_body
@@ -402,6 +392,9 @@
%type <scm> mode_changing_head
%type <scm> mode_changing_head_with_context
%type <scm> multiplied_duration
+%type <scm> music_function_identifier_musicless_prefix
+%type <scm> music_function_event
+%type <scm> music_function_chord_body
%type <scm> new_chord
%type <scm> new_lyrics
%type <scm> number_expression
@@ -427,7 +420,6 @@
%type <scm> step_number
%type <scm> step_numbers
%type <scm> string
-%type <scm> function_scm_argument
%type <score> score_block
%type <score> score_body
@@ -921,72 +913,46 @@
| simple_string
;
-/*
-TODO: use code generation for this
-*/
-music_function_musicless_function:
- MUSIC_FUNCTION {
- $$ = scm_list_2 ($1, make_input (@$));
- }
- | MUSIC_FUNCTION_SCM function_scm_argument {
- $$ = scm_list_3 ($1, make_input (@$), $2);
- }
- | MUSIC_FUNCTION_MARKUP full_markup {
- $$ = scm_list_3 ($1, make_input (@$), $2);
- }
- | MUSIC_FUNCTION_SCM_SCM function_scm_argument function_scm_argument {
- $$ = scm_list_4 ($1, make_input (@$), $2, $3);
- }
- | MUSIC_FUNCTION_SCM_SCM_SCM function_scm_argument function_scm_argument function_scm_argument {
- $$ = scm_list_5 ($1, make_input (@$), $2, $3, $4);
- }
- | MUSIC_FUNCTION_MARKUP_MARKUP full_markup full_markup {
- $$ = scm_list_4 ($1, make_input (@$), $2, $3);
+/* An argument list. If a function \foo expects scm scm music, then the lexer expands \foo into the token sequence:
+ MUSIC_FUNCTION EXPECT_MUSIC EXPECT_SCM EXPECT_SCM
+and this rule returns the reversed list of arguments. */
+
+function_arglist_music_last:
+ EXPECT_MUSIC function_arglist music {
+ $$ = scm_cons ($3, $2);
}
;
-/*
-TODO: use code generation for this
-*/
-music_function_musicless_prefix:
- MUSIC_FUNCTION_MUSIC {
- $$ = scm_list_2 ($1, make_input (@$));
+function_arglist_nonmusic_last:
+ EXPECT_MARKUP function_arglist full_markup {
+ $$ = scm_cons ($3, $2);
}
- | MUSIC_FUNCTION_SCM_MUSIC function_scm_argument {
- $$ = scm_list_3 ($1, make_input (@$), $2);
+ | EXPECT_SCM function_arglist function_scm_argument {
+ $$ = scm_cons ($3, $2);
}
- | MUSIC_FUNCTION_SCM_SCM_MUSIC function_scm_argument function_scm_argument {
- $$ = scm_list_4 ($1, make_input (@$), $2, $3);
+ ;
+
+function_arglist_nonmusic: /*empty*/ {
+ $$ = SCM_EOL;
}
- | MUSIC_FUNCTION_SCM_SCM_SCM_MUSIC function_scm_argument function_scm_argument function_scm_argument {
- $$ = scm_list_5 ($1, make_input (@$), $2, $3, $4);
+ | EXPECT_MARKUP function_arglist_nonmusic full_markup {
+ $$ = scm_cons ($3, $2);
}
- | MUSIC_FUNCTION_SCM_SCM_SCM_SCM_MUSIC function_scm_argument function_scm_argument function_scm_argument function_scm_argument {
- $$ = scm_list_n ($1, make_input (@$), $2, $3, $4, $5, SCM_UNDEFINED);
+ | EXPECT_SCM function_arglist_nonmusic function_scm_argument {
+ $$ = scm_cons ($3, $2);
}
- | MUSIC_FUNCTION_MARKUP_MUSIC full_markup {
- $$ = scm_list_3 ($1, make_input (@$), $2);
+ ;
+
+function_arglist: /*empty*/ {
+ $$ = SCM_EOL;
}
+ | function_arglist_music_last
+ | function_arglist_nonmusic_last
;
generic_prefix_music_scm:
- music_function_musicless_function {
- $$ = $1;
- }
- | music_function_musicless_prefix music {
- $$ = ly_append2 ($1, scm_list_1 ($2));
- }
- | MUSIC_FUNCTION_MUSIC_MUSIC music music {
- $$ = scm_list_4 ($1, make_input (@$), $2, $3);
- }
- | MUSIC_FUNCTION_SCM_MUSIC_MUSIC function_scm_argument music music {
- $$ = scm_list_5 ($1, make_input (@$), $2, $3, $4);
- }
- | MUSIC_FUNCTION_SCM_SCM_MUSIC_MUSIC function_scm_argument function_scm_argument music music {
- $$ = scm_list_n ($1, make_input (@$), $2, $3, $4, $5, SCM_UNDEFINED);
- }
- | MUSIC_FUNCTION_MARKUP_MUSIC_MUSIC full_markup music music {
- $$ = scm_list_5 ($1, make_input (@$), $2, $3, $4);
+ MUSIC_FUNCTION function_arglist {
+ $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($2, SCM_EOL));
}
;
@@ -1393,24 +1359,38 @@
}
;
+music_function_identifier_musicless_prefix: MUSIC_FUNCTION {
+ SCM sig = scm_object_property (yylval.scm, ly_symbol2scm ("music-function-signature"));
+ if (scm_is_pair (sig) && scm_memq (ly_music_p_proc, scm_cdr (scm_reverse (sig))))
+ {
+ PARSER->parser_error (@$, "Music function applied to event may not have a Music argument, except as the last argument.");
+ }
+ }
+ ;
+
music_function_chord_body:
- music_function_musicless_function {
- $$ = $1;
+ /* We could allow chord functions to have multiple music arguments,
+ but it's more consistent with music_function_event if we
+ prohibit it here too */
+ music_function_identifier_musicless_prefix EXPECT_MUSIC function_arglist_nonmusic chord_body_element {
+ $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($3, scm_list_1 ($4)));
}
- | music_function_musicless_prefix chord_body_element {
- $$ = ly_append2 ($1, scm_list_1 ($2));
+ | music_function_identifier_musicless_prefix function_arglist_nonmusic {
+ $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($2, SCM_EOL));
}
;
music_function_event:
- music_function_musicless_prefix post_event {
- $$ = ly_append2 ($1, scm_list_1 ($2));
+ /* Post-events can only have the last argument as music, without this
+ restriction we get a shift/reduce conflict from e.g.
+ c8-\partcombine c8 -. */
+ music_function_identifier_musicless_prefix EXPECT_MUSIC function_arglist_nonmusic post_event {
+ $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($3, scm_list_1 ($4)));
}
- | music_function_musicless_function {
- $$ = $1;
+ | music_function_identifier_musicless_prefix function_arglist_nonmusic {
+ $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($2, SCM_EOL));
}
;
-
command_element:
command_event {
Index: lily/include/lily-lexer.hh
===================================================================
RCS file: /sources/lilypond/lilypond/lily/include/lily-lexer.hh,v
retrieving revision 1.18
diff -u -r1.18 lily-lexer.hh
--- lily/include/lily-lexer.hh 11 Feb 2006 11:35:16 -0000 1.18
+++ lily/include/lily-lexer.hh 25 Aug 2006 06:13:45 -0000
@@ -35,6 +35,7 @@
SCM scopes_;
SCM start_module_;
public:
+ vector<int> extra_token_types_;
string main_input_name_;
void *lexval;
Input *lexloc;
@@ -67,6 +68,7 @@
SCM lookup_identifier (string s);
SCM lookup_identifier_symbol (SCM s);
+ void push_extra_token (int token_type);
void push_chord_state (SCM tab);
void push_figuredbass_state ();
void push_lyric_state ();
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