%{ // -*-Fundamental-*-
/*
- lexer.ll -- implement the Flex lexer
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the LilyPond music typesetter
+ Copyright (C) 1996--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 1996--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
- Jan Nieuwenhuizen <janneke@gnu.org>
-*/
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
/*
backup rules
using namespace std;
#include "context-def.hh"
+#include "duration.hh"
#include "identifier-smob.hh"
#include "international.hh"
#include "interval.hh"
#include "lily-guile.hh"
#include "lily-lexer.hh"
-#include "lilypond-input-version.hh"
+#include "lily-parser.hh"
+#include "lilypond-version.hh"
#include "main.hh"
+#include "music.hh"
#include "music-function.hh"
#include "parse-scm.hh"
#include "parser.hh"
+#include "pitch.hh"
#include "source-file.hh"
#include "std-string.hh"
#include "string-convert.hh"
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);
+SCM lookup_markup_list_command (string s);
bool is_valid_version (string s);
yylval.string = new string
#define yylval \
- (*(YYSTYPE*)lexval)
+ (*(YYSTYPE*)lexval_)
#define yylloc \
- (*(YYLTYPE*)lexloc)
+ (*(YYLTYPE*)lexloc_)
#define YY_USER_ACTION add_lexed_char (YYLeng ());
-/*
-
-LYRICS ({AA}|{TEX})[^0-9 \t\n\f]*
-
-*/
SCM scan_fraction (string);
%option never-interactive
%option warn
+%x extratoken
%x chords
%x figures
%x incl
%x sourcefilename
%x version
-A [a-zA-Z]
+A [a-zA-Z\200-\377]
AA {A}|_
N [0-9]
AN {AA}|{N}
+ANY_CHAR (.|\n)
PUNCT [?!:'`]
ACCENT \\[`'"^]
-NATIONAL [\001-\006\021-\027\031\036\200-\377]
+NATIONAL [\001-\006\021-\027\031\036]
TEX {AA}|-|{PUNCT}|{ACCENT}|{NATIONAL}
WORD {A}{AN}*
DASHED_WORD {A}({AN}|-)*
DASHED_KEY_WORD \\{DASHED_WORD}
+
+
+
ALPHAWORD {A}+
DIGIT {N}
UNSIGNED {N}+
EXTENDER __
HYPHEN --
BOM_UTF8 \357\273\277
+
%%
// windows-suck-suck-suck
}
-<INITIAL,chords,lyrics,figures,notes>{BOM_UTF8} {
- if (this->lexloc->line_number () != 1 || this->lexloc->column_number () != 0)
+<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 = extra_token_types_.back ();
+ extra_token_types_.pop_back ();
+ if (extra_token_types_.empty ())
+ 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}/.* {
+ if (this->lexloc_->line_number () != 1 || this->lexloc_->column_number () != 0)
{
LexerError (_ ("stray UTF-8 BOM encountered").c_str ());
exit (1);
"%{" {
yy_push_state (longcomment);
}
- %[^{\n\r].*[\n\r] {
+ %[^{\n\r][^\n\r]*[\n\r] {
}
%[^{\n\r] { // backup rule
}
%[\n\r] {
}
- %[^{\n\r].* {
+ %[^{\n\r][^\n\r]* {
}
{WHITE}+ {
progress_indication ("\n");
scm_module_define (scm_car (scopes_),
ly_symbol2scm ("input-file-name"),
- scm_makfrom0str (s.c_str ()));
+ ly_string2scm (s));
}
int i;
sscanf (YYText (), "%d", &i);
-// this->set_debug (1);
yy_pop_state ();
this->here_input ().get_source_file ()->set_line (here_input ().start (), i);
}
}
<<EOF>> {
LexerError (_ ("EOF found inside a comment").c_str ());
- is_main_input_ = false;
+ is_main_input_ = false; // should be safe , can't have \include in --safe.
if (! close_input ())
yyterminate (); // can't move this, since it actually rets a YY_NULL
}
}
<chords,notes,figures>{RESTNAME} {
char const *s = YYText ();
- yylval.scm = scm_makfrom0str (s);
+ yylval.scm = scm_from_locale_string (s);
return RESTNAME;
}
<chords,notes,figures>R {
Input hi = here_input();
hi.step_forward ();
SCM sval = ly_parse_scm (hi.start (), &n, hi,
- be_safe_global && is_main_input_);
+ be_safe_global && is_main_input_, parser_);
if (sval == SCM_UNDEFINED)
{
yylval.scm = unpack_identifier(sval);
return identifier_type (yylval.scm);
}
+
+ for (size_t i = 0; i < pending_string_includes_.size (); i++)
+ new_input ("<included string>", pending_string_includes_[i],
+ parser_->sources_);
+ pending_string_includes_.clear ();
yylval.scm = sval;
return SCM_TOKEN;
\\{ESCAPED} {
*yylval.string += to_string (escaped_char (YYText ()[1]));
}
- [^\\"]+ {
+ [^\\""]+ {
*yylval.string += YYText ();
}
\" {
/* yylval is union. Must remember STRING before setting SCM*/
string *sp = yylval.string;
- yylval.scm = scm_makfrom0str (sp->c_str ());
+ yylval.scm = ly_string2scm (*sp);
delete sp;
return is_lyric_state () ? LYRICS_STRING : STRING;
}
if (c == '{' || c == '}') // brace open is for not confusing dumb tools.
here_input ().warning (
_ ("Brace found at end of lyric. Did you forget a space?"));
- yylval.scm = scm_makfrom0str (s.c_str ());
+ yylval.scm = ly_string2scm (s);
return LYRICS_STRING;
}
{MARKUPCOMMAND} {
string str (YYText () + 1);
+
+ int token_type = MARKUP_FUNCTION;
SCM s = lookup_markup_command (str);
- if (scm_is_pair (s) && scm_is_symbol (scm_cdr (s)) ) {
- yylval.scm = scm_car(s);
- SCM tag = scm_cdr(s);
- if (tag == ly_symbol2scm("markup0"))
- return MARKUP_HEAD_MARKUP0;
- if (tag == ly_symbol2scm("empty"))
- return MARKUP_HEAD_EMPTY;
- else if (tag == ly_symbol2scm ("markup0-markup1"))
- return MARKUP_HEAD_MARKUP0_MARKUP1;
- else if (tag == ly_symbol2scm ("markup-list0"))
- return MARKUP_HEAD_LIST0;
- else if (tag == ly_symbol2scm ("scheme0"))
- return MARKUP_HEAD_SCM0;
- else if (tag == ly_symbol2scm ("scheme0-scheme1"))
- return MARKUP_HEAD_SCM0_SCM1;
- else if (tag == ly_symbol2scm ("scheme0-markup1"))
- return MARKUP_HEAD_SCM0_MARKUP1;
- else if (tag == ly_symbol2scm ("scheme0-scheme1-markup2"))
- return MARKUP_HEAD_SCM0_SCM1_MARKUP2;
- else if (tag == ly_symbol2scm ("scheme0-scheme1-scheme2"))
- return MARKUP_HEAD_SCM0_SCM1_SCM2;
- else {
- programming_error ("no parser tag defined for this markup signature");
- ly_display_scm (s);
- assert(false);
- }
- } else
- return scan_escaped_word (str);
+ // lookup-markup-command returns a pair with the car
+ // being the function to call, and the cdr being the
+ // call signature specified to define-markup-command,
+ // a list of predicates.
+
+ if (!scm_is_pair (s)) {
+ // If lookup-markup-command was not successful, we
+ // try lookup-markup-list-command instead.
+ // If this fails as well, we just scan and return
+ // the escaped word.
+ s = lookup_markup_list_command (str);
+ if (scm_is_pair (s))
+ token_type = MARKUP_LIST_FUNCTION;
+ else
+ return scan_escaped_word (str);
+ }
+
+ // If the list of predicates is, say,
+ // (number? number? markup?), then tokens
+ // EXPECT_MARKUP EXPECT_SCM EXPECT_SCM EXPECT_NO_MORE_ARGS
+ // will be generated. Note that we have to push them
+ // in reverse order, so the first token pushed in the
+ // loop will be EXPECT_NO_MORE_ARGS.
+
+ yylval.scm = scm_car(s);
+
+ // yylval now contains the function to call as token
+ // value (for token type MARKUP_FUNCTION or
+ // MARKUP_LIST_FUNCTION).
+
+ push_extra_token(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);
+ else if (predicate == ly_lily_module_constant ("markup?"))
+ push_extra_token(EXPECT_MARKUP);
+ else
+ push_extra_token(EXPECT_SCM);
+ }
+ return token_type;
}
[{}] {
return YYText ()[0];
if (c == '{' || c == '}')
here_input ().warning (
_ ("Brace found at end of markup. Did you forget a space?"));
- yylval.scm = scm_makfrom0str (s.c_str ());
+ yylval.scm = ly_string2scm (s);
return STRING;
<*><<EOF>> {
if (is_main_input_)
{
- is_main_input_ = false;
+ /* 2 = init.ly + current file.
+ > because we're before closing, but is_main_input_ should
+ reflect after.
+ */
+ is_main_input_ = include_stack_.size () > 2;
if (!close_input ())
/* Returns YY_NULL */
yyterminate ();
%%
+/* 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 ())
+ {
+ if (YY_START != extratoken)
+ hidden_state_ = YY_START;
+ yy_push_state (extratoken);
+ }
+ extra_token_types_.push_back (token_type);
+}
+
void
Lily_lexer::push_chord_state (SCM tab)
{
{
if (YYSTATE == notes || YYSTATE == chords)
pitchname_tab_stack_ = scm_cdr (pitchname_tab_stack_);
+
yy_pop_state ();
}
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"));
+ push_extra_token (EXPECT_NO_MORE_ARGS);
+ for (; scm_is_pair (s); s = scm_cdr (s))
+ {
+ SCM cs = scm_car (s);
+
+ if (cs == ly_music_p_proc)
+ push_extra_token (EXPECT_MUSIC);
+ else if (cs == Pitch_type_p_proc)
+ push_extra_token (EXPECT_PITCH);
+ else if (cs == Duration_type_p_proc)
+ push_extra_token (EXPECT_DURATION);
+ else if (cs == ly_lily_module_constant ("markup?"))
+ push_extra_token (EXPECT_MARKUP);
+ else if (ly_is_procedure (cs))
+ push_extra_token (EXPECT_SCM);
+ else programming_error ("Function parameter without type-checking predicate");
+ }
+ return MUSIC_FUNCTION;
}
if (sid != SCM_UNDEFINED)
string msg (_f ("unknown escaped string: `\\%s'", str));
LexerError (msg.c_str ());
- yylval.scm = scm_makfrom0str (str.c_str ());
+ yylval.scm = ly_string2scm (str);
return STRING;
}
else if (scm_is_symbol (yylval.scm))
return DRUM_PITCH;
}
- else if ((handle = scm_hashq_get_handle (chordmodifier_tab_, sym))!= SCM_BOOL_F)
+ else if ((YYSTATE == chords)
+ && (handle = scm_hashq_get_handle (chordmodifier_tab_, sym))!= SCM_BOOL_F)
{
yylval.scm = scm_cdr (handle);
return CHORD_MODIFIER;
}
+ if ((chord_repetition_.repetition_symbol_ != SCM_EOL)
+ && to_boolean (scm_equal_p (chord_repetition_.repetition_symbol_, sym)))
+ return CHORD_REPETITION;
}
- yylval.scm = scm_makfrom0str (str.c_str ());
+ yylval.scm = ly_string2scm (str);
return STRING;
}
+int
+Lily_lexer::get_state () const
+{
+ if (YY_START == extratoken)
+ return hidden_state_;
+ else
+ return YY_START;
+}
+
bool
Lily_lexer::is_note_state () const
{
- return YY_START == notes;
+ return get_state () == notes;
}
bool
Lily_lexer::is_chord_state () const
{
- return YY_START == chords;
+ return get_state () == chords;
}
bool
Lily_lexer::is_lyric_state () const
{
- return YY_START == lyrics;
+ return get_state () == lyrics;
}
bool
Lily_lexer::is_figure_state () const
{
- return YY_START == figures;
+ return get_state () == figures;
}
/*
{
Lilypond_version current ( MAJOR_VERSION "." MINOR_VERSION "." PATCH_LEVEL );
Lilypond_version ver (s);
- if (! ((ver >= oldest_version) && (ver <= current)))
+ if (int (ver) < oldest_version)
{
- non_fatal_error (_f ("Incorrect lilypond version: %s (%s, %s)", ver.to_string (), oldest_version.to_string (), current.to_string ()));
- non_fatal_error (_ ("Consider updating the input with the convert-ly script"));
+ non_fatal_error (_f ("file too old: %s (oldest supported: %s)", ver.to_string (), oldest_version.to_string ()));
+ non_fatal_error (_ ("consider updating the input with the convert-ly script"));
return false;
- }
+ }
+
+ if (ver > current)
+ {
+ non_fatal_error (_f ("program too old: %s (file requires: %s)", current.to_string (), ver.to_string ()));
+ return false;
+ }
return true;
}
lookup_markup_command (string s)
{
SCM proc = ly_lily_module_constant ("lookup-markup-command");
- 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));
+ return scm_call_1 (proc, ly_string2scm (s));
}
-int
-music_function_type (SCM func)
+SCM
+lookup_markup_list_command (string s)
{
- 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);
+ SCM proc = ly_lily_module_constant ("lookup-markup-list-command");
+ return scm_call_1 (proc, ly_string2scm (s));
}
/* Shut up lexer warnings. */
projects / lilypond.git / blobdiff