X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Flily-lexer.cc;h=c72ff8fc129eca056015f930b7a94c02d528902a;hb=f3359a43fe1cec979090721f07af6c7cbc7f8e0c;hp=bee0901b741982672c8442db7f8062df1a464850;hpb=e24df7c27635dc996c466295eacf2981bddccaf7;p=lilypond.git diff --git a/lily/lily-lexer.cc b/lily/lily-lexer.cc index bee0901b74..c72ff8fc12 100644 --- a/lily/lily-lexer.cc +++ b/lily/lily-lexer.cc @@ -1,66 +1,76 @@ /* - lily-lexer.cc -- implement Lily_lexer + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter + Copyright (C) 1997--2012 Han-Wen Nienhuys - (c) 1997--2005 Han-Wen Nienhuys + 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 . */ #include "lily-lexer.hh" #include #include +using namespace std; -#include "scm-hash.hh" +#include "context.hh" // for nested_property_alist +#include "international.hh" #include "interval.hh" -#include "parser.hh" #include "keyword.hh" -#include "warn.hh" -#include "source-file.hh" #include "main.hh" #include "moment.hh" +#include "parser.hh" +#include "scm-hash.hh" +#include "source-file.hh" +#include "warn.hh" +#include "program-option.hh" +#include "lily-parser.hh" -static Keyword_ent the_key_tab[] = { +static Keyword_ent the_key_tab[] += +{ {"accepts", ACCEPTS}, - {"addquote", ADDQUOTE}, {"addlyrics", ADDLYRICS}, {"alias", ALIAS}, {"alternative", ALTERNATIVE}, - {"bar", BAR}, {"book", BOOK}, + {"bookpart", BOOKPART}, {"change", CHANGE}, - {"chords", CHORDS}, {"chordmode", CHORDMODE}, - {"clef", CLEF}, + {"chords", CHORDS}, {"consists", CONSISTS}, {"context", CONTEXT}, {"default", DEFAULT}, + {"defaultchild", DEFAULTCHILD}, {"denies", DENIES}, + {"description", DESCRIPTION}, {"drummode", DRUMMODE}, {"drums", DRUMS}, - {"description", DESCRIPTION}, - {"figures",FIGURES}, - {"figuremode",FIGUREMODE}, - {"grobdescriptions", GROBDESCRIPTIONS}, + {"figuremode", FIGUREMODE}, + {"figures", FIGURES}, {"header", HEADER}, - {"key", KEY}, {"layout", LAYOUT}, {"lyricmode", LYRICMODE}, - {"lyricsto", LYRICSTO}, {"lyrics", LYRICS}, - {"mark", MARK}, + {"lyricsto", LYRICSTO}, {"markup", MARKUP}, + {"markuplist", MARKUPLIST}, {"midi", MIDI}, {"name", NAME}, {"new", NEWCONTEXT}, - {"objectid", OBJECTID}, {"notemode", NOTEMODE}, - {"octave", OCTAVE}, - {"once", ONCE}, {"override", OVERRIDE}, {"paper", PAPER}, - {"partial", PARTIAL}, - {"relative", RELATIVE}, {"remove", REMOVE}, {"repeat", REPEAT}, {"rest", REST}, @@ -69,64 +79,56 @@ static Keyword_ent the_key_tab[] = { {"sequential", SEQUENTIAL}, {"set", SET}, {"simultaneous", SIMULTANEOUS}, - {"skip", SKIP}, - {"tag", TAG}, {"tempo", TEMPO}, - {"time", TIME_T}, - {"times", TIMES}, - {"transpose", TRANSPOSE}, - {"transposition", TRANSPOSITION}, {"type", TYPE}, {"unset", UNSET}, {"with", WITH}, {0, 0} }; - -Lily_lexer::Lily_lexer (Sources *sources) +Lily_lexer::Lily_lexer (Sources *sources, Lily_parser *parser) { + parser_ = parser; keytable_ = new Keyword_table (the_key_tab); chordmodifier_tab_ = SCM_EOL; - pitchname_tab_stack_ = SCM_EOL; + pitchname_tab_stack_ = SCM_EOL; sources_ = sources; scopes_ = SCM_EOL; - error_level_ = 0; + error_level_ = 0; is_main_input_ = false; - + main_input_level_ = 0; + start_module_ = SCM_EOL; + extra_tokens_ = SCM_EOL; smobify_self (); - - add_scope (ly_make_anonymous_module (false)); - push_note_state (scm_c_make_hash_table (0)); - chordmodifier_tab_ = scm_make_vector (scm_int2num (1), SCM_EOL); + + add_scope (ly_make_module (false)); + push_note_state (SCM_EOL); + chordmodifier_tab_ = scm_make_vector (scm_from_int (1), SCM_EOL); } -Lily_lexer::Lily_lexer (Lily_lexer const &src) +Lily_lexer::Lily_lexer (Lily_lexer const &src, Lily_parser *parser, + SCM override_input) : Includable_lexer () { + parser_ = parser; keytable_ = (src.keytable_) ? new Keyword_table (*src.keytable_) : 0; chordmodifier_tab_ = src.chordmodifier_tab_; pitchname_tab_stack_ = src.pitchname_tab_stack_; sources_ = src.sources_; - - error_level_ = src.error_level_; + scopes_ = src.scopes_; + start_module_ = SCM_EOL; + + error_level_ = 0; is_main_input_ = src.is_main_input_; + main_input_level_ = 0; + + extra_tokens_ = SCM_EOL; + if (unsmob_input (override_input)) + override_input_ = *unsmob_input (override_input); - scopes_ = SCM_EOL; - smobify_self (); - - SCM scopes = SCM_EOL; - SCM *tail = &scopes; - for (SCM s = src.scopes_; scm_is_pair (s); s = scm_cdr (s)) - { - SCM newmod = ly_make_anonymous_module (false); - ly_module_copy (newmod, scm_car (s)); - *tail = scm_cons (newmod, SCM_EOL); - tail = SCM_CDRLOC (*tail); - } - - scopes_ = scopes; - push_note_state (scm_c_make_hash_table (0)); + + push_note_state (SCM_EOL); } Lily_lexer::~Lily_lexer () @@ -138,12 +140,19 @@ void Lily_lexer::add_scope (SCM module) { ly_reexport_module (scm_current_module ()); - scm_set_current_module (module); + if (!scm_is_pair (scopes_)) + start_module_ = scm_current_module (); + for (SCM s = scopes_; scm_is_pair (s); s = scm_cdr (s)) - { - ly_use_module (module, scm_car (s)); - } + ly_use_module (module, scm_car (s)); scopes_ = scm_cons (module, scopes_); + + set_current_scope (); +} +bool +Lily_lexer::has_scope () const +{ + return scm_is_pair (scopes_); } SCM @@ -151,16 +160,47 @@ Lily_lexer::remove_scope () { SCM sc = scm_car (scopes_); scopes_ = scm_cdr (scopes_); - scm_set_current_module (scm_car (scopes_)); - + set_current_scope (); return sc; } +SCM +Lily_lexer::set_current_scope () +{ + SCM old = scm_current_module (); + + if (scm_is_pair (scopes_)) + scm_set_current_module (scm_car (scopes_)); + else + scm_set_current_module (start_module_); + + return old; +} int -Lily_lexer::lookup_keyword (String s) +Lily_lexer::lookup_keyword (const string &s) { - return keytable_->lookup (s.to_str0 ()); + return keytable_->lookup (s.c_str ()); +} + +SCM +Lily_lexer::keyword_list () const +{ + if (!keytable_) + return SCM_EOL; + + SCM l = SCM_EOL; + SCM *tail = &l; + for (vsize i = 0; i < keytable_->table_.size (); i++) + { + *tail = scm_acons (scm_from_locale_string (keytable_->table_[i].name_), + scm_from_int (keytable_->table_[i].tokcode_), + SCM_EOL); + + tail = SCM_CDRLOC (*tail); + } + + return l; } SCM @@ -170,70 +210,111 @@ Lily_lexer::lookup_identifier_symbol (SCM sym) { SCM var = ly_module_lookup (scm_car (s), sym); if (var != SCM_BOOL_F) - return scm_variable_ref (var); + return scm_variable_ref (var); } return SCM_UNDEFINED; } SCM -Lily_lexer::lookup_identifier (String name) +Lily_lexer::lookup_identifier (const string &name) { - return lookup_identifier_symbol (ly_symbol2scm (name.to_str0 ())); + return lookup_identifier_symbol (ly_symbol2scm (name.c_str ())); } void Lily_lexer::start_main_input () { - // yy_flex_debug = 1; + yy_flex_debug = get_program_option ("debug-lexer"); + parser_->set_yydebug (get_program_option ("debug-parser")); + new_input (main_input_name_, sources_); - - /* Do not allow \include in --safe-mode */ - allow_includes_b_ = allow_includes_b_ && !be_safe_global; scm_module_define (scm_car (scopes_), - ly_symbol2scm ("input-file-name"), - scm_makfrom0str (main_input_name_.to_str0 ())); + ly_symbol2scm ("input-file-name"), + ly_string2scm (main_input_name_)); } void -Lily_lexer::set_identifier (SCM name, SCM s) +Lily_lexer::new_input (const string &str, string d, Sources *ss) { - SCM sym = name; - if (scm_is_string (name)) - sym = scm_string_to_symbol (name); - + Includable_lexer::new_input (str, d, ss); +} + +void +Lily_lexer::new_input (const string &str, Sources *ss) +{ + if (is_main_input_ && be_safe_global) + { + LexerError (_ ("include files are not allowed in safe mode").c_str ()); + return; + } + + Includable_lexer::new_input (str, ss); +} + +// PATH is either a single symbol (or string) or a list of symbols +// giving the path to a nested property. A symbol is treated the same +// as a list of length 1. +void +Lily_lexer::set_identifier (SCM path, SCM val) +{ + SCM sym = path; + if (scm_is_string (path)) + sym = scm_string_to_symbol (path); + else if (scm_is_pair (path)) + { + sym = scm_car (path); + path = scm_cdr (path); + } + if (scm_is_symbol (sym)) { if (lookup_keyword (ly_symbol2string (sym)) >= 0) - { - String symstr = ly_symbol2string (sym); - warning (_f ("Identifier name is a keyword: `%s'", symstr.to_str0())); - } + { + string symstr = ly_symbol2string (sym); + warning (_f ("identifier name is a keyword: `%s'", symstr.c_str ())); + } SCM mod = scm_car (scopes_); - scm_module_define (mod, sym, s); + if (scm_is_pair (path)) + { + SCM prev = ly_module_lookup (mod, sym); + if (prev != SCM_BOOL_F) + val = nested_property_alist (scm_variable_ref (prev), path, val); + } + scm_module_define (mod, sym, val); } else - { - programming_error ("Identifier is not a symbol."); - } + programming_error ("identifier is not a symbol"); } void Lily_lexer::LexerError (char const *s) { - if (include_stack_.is_empty ()) - progress_indication (_f ("error at EOF: %s", s) + String ("\n")); + if (include_stack_.empty ()) + non_fatal_error (s, _f ("%s:EOF", s)); else { error_level_ |= 1; - Input spot (*lexloc); + Input spot (*lexloc_); spot.error (s); } } +void +Lily_lexer::LexerWarning (char const *s) +{ + if (include_stack_.empty ()) + warning (s, _f ("%s:EOF", s)); + else + { + Input spot (*lexloc_); + spot.warning (s); + } +} + char Lily_lexer::escaped_char (char c) const { @@ -254,7 +335,14 @@ Lily_lexer::escaped_char (char c) const Input Lily_lexer::here_input () const { - return Input(*lexloc); + return Input (*lexloc_); +} + +Input const & +Lily_lexer::override_input (Input const &in) const +{ + return override_input_.get_source_file () + ? override_input_ : in; } void @@ -264,19 +352,18 @@ Lily_lexer::prepare_for_next_token () } /** - Since we don't create the buffer state from the bytes directly, we - don't know about the location of the lexer. Add this as a - YY_USER_ACTION */ + Since we don't create the buffer state from the bytes directly, we + don't know about the location of the lexer. Add this as a + YY_USER_ACTION */ void Lily_lexer::add_lexed_char (int count) { - lexloc->source_file_ = get_source_file (); - lexloc->start_ = here_str0 (); - lexloc->end_ = lexloc->start_ + count; - char_count_stack_.top () += count; + char const *start = here_str0 (); + lexloc_->set (get_source_file (), + start, start + count); + char_count_stack_.back () += count; } - #include "ly-smobs.icc" IMPLEMENT_SMOBS (Lily_lexer); @@ -286,17 +373,32 @@ IMPLEMENT_DEFAULT_EQUAL_P (Lily_lexer); SCM Lily_lexer::mark_smob (SCM s) { - Lily_lexer *lexer = (Lily_lexer*) SCM_CELL_WORD_1 (s); + ASSERT_LIVE_IS_ALLOWED (s); + + Lily_lexer *lexer = (Lily_lexer *) SCM_CELL_WORD_1 (s); scm_gc_mark (lexer->chordmodifier_tab_); + if (lexer->parser_) + scm_gc_mark (lexer->parser_->self_scm ()); scm_gc_mark (lexer->pitchname_tab_stack_); + scm_gc_mark (lexer->start_module_); + scm_gc_mark (lexer->extra_tokens_); return lexer->scopes_; } int -Lily_lexer::print_smob (SCM, SCM port, scm_print_state*) +Lily_lexer::print_smob (SCM s, SCM port, scm_print_state *) { + Lily_lexer *lexer = Lily_lexer::unsmob (s); + scm_puts ("#scopes_, port); scm_puts (" >", port); return 1; } + +bool +Lily_lexer::is_clean () const +{ + return include_stack_.empty (); +}