X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Flexer.ll;h=bfd2449e6b3e23ba2ec88b7a509791851fef2751;hb=3af0951f9a11677240efa6228683dd4fcea13eaf;hp=9a5d781dce5b46c9b3fcfbc9e5673b67adbd215e;hpb=652ed35a2013489d0a14fede6307cd2595abb2c4;p=lilypond.git diff --git a/lily/lexer.ll b/lily/lexer.ll index 9a5d781dce..bfd2449e6b 100644 --- a/lily/lexer.ll +++ b/lily/lexer.ll @@ -2,7 +2,7 @@ /* This file is part of LilyPond, the GNU music typesetter. - Copyright (C) 1996--2012 Han-Wen Nienhuys + Copyright (C) 1996--2015 Han-Wen Nienhuys Jan Nieuwenhuizen LilyPond is free software: you can redistribute it and/or modify @@ -30,9 +30,9 @@ /* backup rules - after making a change to the lexer rules, run + after making a change to the lexer rules, run flex -b - and make sure that + and make sure that lex.backup contains no backup states, but only the reminder Compressed tables always back up. @@ -69,9 +69,9 @@ using namespace std; #include "pitch.hh" #include "source-file.hh" #include "std-string.hh" -#include "string-convert.hh" #include "version.hh" #include "warn.hh" +#include "lily-imports.hh" /* RH 7 fix (?) @@ -120,10 +120,9 @@ SCM (* scm_parse_error_handler) (void *); %option debug %option yyclass="Lily_lexer" %option stack -%option never-interactive +%option never-interactive %option warn -%x extratoken %x chords %x figures %x incl @@ -186,40 +185,10 @@ BOM_UTF8 \357\273\277 // swallow and ignore carriage returns } -{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; -} - -<> { - /* 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. */ {BOM_UTF8}/.* { - if (this->lexloc_->line_number () != 1 || this->lexloc_->column_number () != 0) + if (lexloc_->line_number () != 1 || lexloc_->column_number () != 0) { LexerWarning (_ ("stray UTF-8 BOM encountered").c_str ()); // exit (1); @@ -275,7 +244,7 @@ BOM_UTF8 \357\273\277 s = s.substr (0, s.rfind ('\"')); yy_pop_state (); - this->here_input().get_source_file ()->name_ = s; + here_input().get_source_file ()->name_ = s; message (_f ("Renaming input to: `%s'", s.c_str ())); progress_indication ("\n"); scm_module_define (scm_car (scopes_), @@ -289,7 +258,7 @@ BOM_UTF8 \357\273\277 sscanf (YYText (), "%d", &i); yy_pop_state (); - this->here_input ().get_source_file ()->set_line (here_input ().start (), i); + here_input ().get_source_file ()->set_line (here_input ().start (), i); } {ANY_CHAR} { @@ -378,7 +347,7 @@ BOM_UTF8 \357\273\277 yy_pop_state (); } else { LexerError (_ ("string expected after \\include").c_str ()); - if (sval != SCM_UNDEFINED) { + if (!SCM_UNBNDP (sval)) { SCM err = scm_current_error_port (); scm_puts ("This value was found instead: ", err); scm_display (sval, err); @@ -400,7 +369,7 @@ BOM_UTF8 \357\273\277 {RESTNAME}/[-_] | // pseudo backup rule {RESTNAME} { char const *s = YYText (); - yylval = scm_from_locale_string (s); + yylval = scm_from_ascii_string (s); return RESTNAME; } q/[-_] | // pseudo backup rule @@ -419,7 +388,7 @@ BOM_UTF8 \357\273\277 hi.step_forward (); SCM sval = ly_parse_scm (hi, be_safe_global && is_main_input_, parser_); - if (sval == SCM_UNDEFINED) + if (SCM_UNBNDP (sval)) error_level_ = 1; int n = hi.end () - hi.start (); @@ -453,7 +422,7 @@ BOM_UTF8 \357\273\277 return token; } -{ +{ \<\< { yylval = SCM_UNSPECIFIED; return DOUBLE_ANGLE_OPEN; @@ -464,7 +433,7 @@ BOM_UTF8 \357\273\277 } } -{ +{ \< { yylval = SCM_UNSPECIFIED; return ANGLE_OPEN; @@ -540,11 +509,11 @@ BOM_UTF8 \357\273\277 { \\{ESCAPED} { char c = escaped_char (YYText ()[1]); - yylval = scm_cons (scm_from_locale_stringn (&c, 1), + yylval = scm_cons (scm_from_ascii_stringn (&c, 1), yylval); } [^\\""]+ { - yylval = scm_cons (scm_from_locale_string (YYText_utf8 ()), + yylval = scm_cons (scm_from_utf8_string (YYText_utf8 ()), yylval); } \" { @@ -565,7 +534,7 @@ BOM_UTF8 \357\273\277 return STRING; } \\ { - yylval = scm_cons (scm_from_locale_string (YYText ()), + yylval = scm_cons (scm_from_ascii_string (YYText ()), yylval); } } @@ -671,6 +640,10 @@ BOM_UTF8 \357\273\277 yylval = SCM_UNSPECIFIED; return SCORE; } + \\score-lines { + yylval = SCM_UNSPECIFIED; + return SCORELINES; + } \\\" { start_command_quote (); } @@ -711,17 +684,17 @@ BOM_UTF8 \357\273\277 // 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); - else if (predicate == ly_lily_module_constant ("markup?")) - push_extra_token(EXPECT_MARKUP); + if (predicate == Lily::markup_list_p) + push_extra_token (here_input (), EXPECT_MARKUP_LIST); + else if (predicate == Lily::markup_p) + 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; } @@ -837,18 +810,28 @@ BOM_UTF8 \357\273\277 %% -/* Make the lexer generate a token of the given type as the next token. +/* 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 (where.smobbed_copy (), + 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 (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 @@ -889,32 +872,17 @@ Lily_lexer::push_markup_state () 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_); @@ -922,10 +890,6 @@ Lily_lexer::pop_state () if (YYSTATE != maininput) yy_pop_state (); - if (extra) { - hidden_state_ = YYSTATE; - yy_push_state (extratoken); - } } int @@ -950,15 +914,15 @@ Lily_lexer::scan_escaped_word (const string &str) return i; SCM sid = lookup_identifier (str); - if (Music *m = unsmob_music (sid)) + if (Music *m = unsmob (sid)) { m->set_spot (override_input (here_input ())); } - if (sid != SCM_UNDEFINED) + if (!SCM_UNBNDP (sid)) return scan_scm_id (sid); - string msg (_f ("unknown escaped string: `\\%s'", str)); + string msg (_f ("unknown escaped string: `\\%s'", str)); LexerError (msg.c_str ()); yylval = ly_string2scm (str); @@ -970,15 +934,15 @@ int Lily_lexer::scan_shorthand (const string &str) { SCM sid = lookup_identifier (str); - if (Music *m = unsmob_music (sid)) + if (Music *m = unsmob (sid)) { m->set_spot (override_input (here_input ())); } - if (sid != SCM_UNDEFINED) + if (!SCM_UNBNDP (sid)) return scan_scm_id (sid); - string msg (_f ("undefined character or shorthand: %s", str)); + string msg (_f ("undefined character or shorthand: %s", str)); LexerError (msg.c_str ()); yylval = ly_string2scm (str); @@ -989,13 +953,13 @@ Lily_lexer::scan_shorthand (const string &str) int Lily_lexer::scan_scm_id (SCM sid) { - if (is_music_function (sid)) + if (Music_function *fun = unsmob (sid)) { int funtype = SCM_FUNCTION; yylval = sid; - SCM s = get_music_function_signature (sid); + SCM s = fun->get_signature (); SCM cs = scm_car (s); if (scm_is_pair (cs)) @@ -1003,15 +967,15 @@ Lily_lexer::scan_scm_id (SCM sid) cs = SCM_CAR (cs); } - if (scm_is_eq (cs, ly_lily_module_constant ("ly:music?"))) + if (scm_is_eq (cs, Lily::ly_music_p)) funtype = MUSIC_FUNCTION; - else if (scm_is_eq (cs, ly_lily_module_constant ("ly:event?"))) + else if (scm_is_eq (cs, Lily::ly_event_p)) funtype = EVENT_FUNCTION; else if (ly_is_procedure (cs)) 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; @@ -1022,16 +986,16 @@ Lily_lexer::scan_scm_id (SCM sid) optional = SCM_CDR (cs); cs = SCM_CAR (cs); } - + 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; } @@ -1047,16 +1011,16 @@ Lily_lexer::scan_bare_word (const string &str) SCM handle = SCM_BOOL_F; if (scm_is_pair (pitchname_tab_stack_)) handle = scm_hashq_get_handle (scm_cdar (pitchname_tab_stack_), sym); - + if (scm_is_pair (handle)) { yylval = scm_cdr (handle); - if (unsmob_pitch (yylval)) + if (unsmob (yylval)) return (YYSTATE == notes) ? NOTENAME_PITCH : TONICNAME_PITCH; else if (scm_is_symbol (yylval)) return DRUM_PITCH; } else if ((YYSTATE == chords) - && (handle = scm_hashq_get_handle (chordmodifier_tab_, sym))!= SCM_BOOL_F) + && scm_is_true (handle = scm_hashq_get_handle (chordmodifier_tab_, sym))) { yylval = scm_cdr (handle); return CHORD_MODIFIER; @@ -1069,10 +1033,7 @@ Lily_lexer::scan_bare_word (const string &str) int Lily_lexer::get_state () const { - if (YY_START == extratoken) - return hidden_state_; - else - return YY_START; + return YY_START; } bool @@ -1135,21 +1096,23 @@ Lily_lexer::eval_scm (SCM readerdata, Input hi, char extra_token) p = scm_cdr (p)) { SCM v = scm_car (p); - if (Music *m = unsmob_music (v)) + if (Music *m = unsmob (v)) { - if (!unsmob_input (m->get_property ("origin"))) + if (!unsmob (m->get_property ("origin"))) m->set_spot (override_input (here_input ())); } - + int token; switch (extra_token) { 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; } } @@ -1158,9 +1121,9 @@ Lily_lexer::eval_scm (SCM readerdata, Input hi, char extra_token) sval = SCM_UNSPECIFIED; } - if (Music *m = unsmob_music (sval)) + if (Music *m = unsmob (sval)) { - if (!unsmob_input (m->get_property ("origin"))) + if (!unsmob (m->get_property ("origin"))) m->set_spot (override_input (here_input ())); } @@ -1278,7 +1241,7 @@ Lily_lexer::YYText_utf8 () /* urg, belong to string (_convert) - and should be generalised + and should be generalised */ void strip_leading_white (string&s) @@ -1294,8 +1257,8 @@ strip_leading_white (string&s) void strip_trailing_white (string&s) { - ssize i = s.length (); - while (i--) + ssize i = s.length (); + while (i--) if (!isspace (s[i])) break; @@ -1312,8 +1275,13 @@ is_valid_version (string s) { Lilypond_version current ( MAJOR_VERSION "." MINOR_VERSION "." PATCH_LEVEL ); Lilypond_version ver (s); - if (int (ver) < oldest_version) - { + if (!ver) + { + non_fatal_error (_f ("Invalid version string \"%s\"", s)); + return false; + } + if (ver < oldest_version) + { 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; @@ -1326,7 +1294,7 @@ is_valid_version (string s) } return true; } - + /* substitute _ @@ -1353,23 +1321,20 @@ scan_fraction (string frac) string left = frac.substr (0, i); string right = frac.substr (i + 1, (frac.length () - i + 1)); - int n = String_convert::dec2int (left); - int d = String_convert::dec2int (right); - return scm_cons (scm_from_int (n), scm_from_int (d)); + return scm_cons (scm_c_read_string (left.c_str ()), + scm_c_read_string (right.c_str ())); } SCM lookup_markup_command (string s) { - SCM proc = ly_lily_module_constant ("lookup-markup-command"); - return scm_call_1 (proc, ly_string2scm (s)); + return Lily::lookup_markup_command (ly_string2scm (s)); } SCM lookup_markup_list_command (string s) { - SCM proc = ly_lily_module_constant ("lookup-markup-list-command"); - return scm_call_1 (proc, ly_string2scm (s)); + return Lily::lookup_markup_list_command (ly_string2scm (s)); } /* Shut up lexer warnings. */