X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fparse-scm.cc;h=58348dc63274ec4f82ea2f75c0b79c2c2d6606ea;hb=e24fb7cc5671aea95211d4a0c56f28fb6fe8720e;hp=1b0f16703378144e4a0922056ceff4411655bc18;hpb=4778c7326d726f50f6ac541322006d6b90795945;p=lilypond.git diff --git a/lily/parse-scm.cc b/lily/parse-scm.cc index 1b0f167033..58348dc632 100644 --- a/lily/parse-scm.cc +++ b/lily/parse-scm.cc @@ -1,7 +1,7 @@ /* This file is part of LilyPond, the GNU music typesetter. - Copyright (C) 2004--2011 Han-Wen Nienhuys + Copyright (C) 2004--2014 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 @@ -39,7 +39,7 @@ internal_ly_parse_scm (Parse_start *ps) Source_file *sf = ps->start_location_.get_source_file (); SCM port = sf->get_port (); - int off = ps->start_location_.start () - sf->c_str (); + long off = ps->start_location_.start () - sf->c_str (); scm_seek (port, scm_from_long (off), scm_from_long (SEEK_SET)); SCM from = scm_ftell (port); @@ -47,23 +47,32 @@ internal_ly_parse_scm (Parse_start *ps) scm_set_port_line_x (port, scm_from_int (ps->start_location_.line_number () - 1)); scm_set_port_column_x (port, scm_from_int (ps->start_location_.column_number () - 1)); - SCM form = scm_read (port); + bool multiple = ly_is_equal (scm_peek_char (port), SCM_MAKE_CHAR ('@')); + + if (multiple) + (void) scm_read_char (port); + SCM form = scm_read (port); SCM to = scm_ftell (port); - ps->nchars = scm_to_int (to) - scm_to_int (from); + ps->nchars = scm_to_int (to) - scm_to_int (from); - if (!SCM_EOF_OBJECT_P (form)) { - if (ps->parser_->lexer_->top_input ()) - { - // Find any precompiled form. - SCM c = scm_assv_ref (ps->parser_->closures_, from); - if (scm_is_true (c)) - // Replace form with a call to previously compiled closure - form = scm_list_1 (c); - } - return scm_cons (form, make_input (ps->start_location_)); -} + if (!SCM_EOF_OBJECT_P (form)) + { + if (ps->parser_->lexer_->top_input ()) + { + // Find any precompiled form. + SCM c = scm_assv_ref (ps->parser_->closures_, from); + if (scm_is_true (c)) + // Replace form with a call to previously compiled closure + form = scm_list_1 (c); + } + if (multiple) + form = scm_list_3 (ly_symbol2scm ("apply"), + ly_symbol2scm ("values"), + form); + return scm_cons (form, make_input (ps->start_location_)); + } /* Don't close the port here; if we re-enter this function via a continuation, then the next time we enter it, we'll get an error. @@ -81,22 +90,21 @@ internal_ly_eval_scm (Parse_start *ps) { static SCM module = SCM_BOOL_F; if (module == SCM_BOOL_F) - { - SCM function = ly_lily_module_constant ("make-safe-lilypond-module"); - module = scm_gc_protect_object (scm_call_0 (function)); - } - + { + SCM function = ly_lily_module_constant ("make-safe-lilypond-module"); + module = scm_gc_protect_object (scm_call_0 (function)); + } + // We define the parser so trusted Scheme functions can // access the real namespace underlying the parser. if (ps->parser_) - scm_module_define (module, ly_symbol2scm ("parser"), - ps->parser_->self_scm ()); + scm_module_define (module, ly_symbol2scm ("parser"), + ps->parser_->self_scm ()); return scm_eval (ps->form_, module); } return scm_primitive_eval (ps->form_); } - SCM catch_protected_parse_body (void *p) { @@ -172,4 +180,3 @@ ly_eval_scm (SCM form, Input i, bool safe, Lily_parser *parser) scm_remember_upto_here_1 (form); return ans; } -