2 lily-parser-scheme.cc -- implement Lily_parser bindings
4 source file of the GNU LilyPond music typesetter
6 (c) 2005--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
11 #include "file-name-map.hh"
12 #include "file-name.hh"
13 #include "file-path.hh"
14 #include "international.hh"
15 #include "lily-lexer.hh"
16 #include "lily-parser.hh"
17 #include "ly-module.hh"
19 #include "program-option.hh"
23 /* Do not append `!' suffix, since 1st argument is not modified. */
24 LY_DEFINE (ly_set_point_and_click, "ly:set-point-and-click",
29 warning (_f ("deprecated function called: %s", "ly:set-point-and-click"));
30 return SCM_UNSPECIFIED;
33 LY_DEFINE (ly_parse_file, "ly:parse-file",
35 "Parse a single @code{.ly} file. "
36 "Upon failure, throw @code{ly-file-failed} key.")
38 SCM_ASSERT_TYPE (scm_is_string (name), name, SCM_ARG1, __FUNCTION__, "string");
39 char const *file = scm_i_string_chars (name);
40 char const *extensions[] = {"ly", "", 0};
42 std::string file_name = global_path.find (file, extensions);
44 /* By default, use base name of input file for output file name,
45 write output to cwd; do not use root and directory parts of input
47 File_name out_file_name (file_name);
49 global_path.append (out_file_name.dir_);
51 out_file_name.ext_ = "";
52 out_file_name.root_ = "";
53 out_file_name.dir_ = "";
55 /* When running from gui, generate output in .ly source directory. */
56 if (output_name_global.empty ()
57 && ly_get_option (ly_symbol2scm ("gui")) == SCM_BOOL_T)
62 output_name_global = f.to_string ();
65 if (!output_name_global.empty ())
67 /* Interpret --output=DIR to mean --output=DIR/BASE. */
68 if (is_dir (output_name_global))
71 getcwd (cwd, PATH_MAX);
73 if (output_name_global != cwd)
75 global_path.prepend (cwd);
76 message (_f ("Changing working directory to `%s'",
77 output_name_global.c_str ()));
78 chdir (output_name_global.c_str ());
80 output_name_global = "";
83 out_file_name = File_name (output_name_global);
87 if (!init_name_global.empty ())
88 init = init_name_global;
92 std::string out_file = out_file_name.to_string ();
94 if (init.length () && global_path.find (init).empty ())
96 warning (_f ("can't find init file: `%s'", init));
97 warning (_f ("(search path: `%s')",
98 global_path.to_string ().c_str ()));
102 if ((file_name != "-") && global_path.find (file_name).empty ())
104 warning (_f ("can't find file: `%s'", file_name));
105 scm_throw (ly_symbol2scm ("ly-file-failed"),
106 scm_list_1 (scm_makfrom0str (file_name.c_str ())));
111 sources.set_path (&global_path);
113 std::string mapped_fn = map_file_name (file_name);
114 message (_f ("Processing `%s'", mapped_fn.c_str ()));
115 progress_indication ("\n");
117 Lily_parser *parser = new Lily_parser (&sources);
119 parser->parse_file (init, file_name, out_file);
121 bool error = parser->error_level_;
122 parser->unprotect ();
125 /* TODO: pass renamed input file too. */
126 scm_throw (ly_symbol2scm ("ly-file-failed"),
127 scm_list_1 (scm_makfrom0str (file_name.c_str ())));
129 return SCM_UNSPECIFIED;
132 LY_DEFINE (ly_parse_string, "ly:parse-string",
133 1, 0, 0, (SCM ly_code),
134 "Parse the string LY_CODE. "
135 "Upon failure, throw @code{ly-file-failed} key.")
137 SCM_ASSERT_TYPE (scm_is_string (ly_code), ly_code, SCM_ARG1, __FUNCTION__, "string");
140 sources.set_path (&global_path);
141 Lily_parser *parser = new Lily_parser (&sources);
142 parser->parse_string (ly_scm2string (ly_code));
143 parser->unprotect ();
146 return SCM_UNSPECIFIED;
149 LY_DEFINE (ly_clone_parser, "ly:clone-parser",
150 1, 0, 0, (SCM parser_smob),
151 "Return a clone of PARSER_SMOB.")
153 Lily_parser *parser = unsmob_lily_parser (parser_smob);
154 Lily_parser *clone = new Lily_parser (*parser);
156 return clone->unprotect ();
159 LY_DEFINE (ly_parser_define, "ly:parser-define!",
160 3, 0, 0, (SCM parser_smob, SCM symbol, SCM val),
161 "Bind SYMBOL to VAL in PARSER_SMOB's module.")
163 Lily_parser *parser = unsmob_lily_parser (parser_smob);
164 SCM_ASSERT_TYPE (scm_is_symbol (symbol), symbol, SCM_ARG2, __FUNCTION__, "symbol");
165 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG2, __FUNCTION__, "parser");
167 parser->lexer_->set_identifier (scm_symbol_to_string (symbol), val);
168 return SCM_UNSPECIFIED;
171 LY_DEFINE (ly_parser_lookup, "ly:parser-lookup",
172 2, 0, 0, (SCM parser_smob, SCM symbol),
173 "Lookup @var{symbol} in @var{parser_smob}'s module. "
176 Lily_parser *parser = unsmob_lily_parser (parser_smob);
178 SCM_ASSERT_TYPE (scm_is_symbol (symbol), symbol, SCM_ARG2, __FUNCTION__, "symbol");
179 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG2, __FUNCTION__, "parser");
181 SCM val = parser->lexer_->lookup_identifier (ly_scm2string (scm_symbol_to_string (symbol)));
182 if (val != SCM_UNDEFINED)
188 LY_DEFINE (ly_parser_parse_string, "ly:parser-parse-string",
189 2, 0, 0, (SCM parser_smob, SCM ly_code),
190 "Parse the string LY_CODE with PARSER_SMOB."
191 "Upon failure, throw @code{ly-file-failed} key.")
193 Lily_parser *parser = unsmob_lily_parser (parser_smob);
195 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG1, __FUNCTION__, "parser");
196 SCM_ASSERT_TYPE (scm_is_string (ly_code), ly_code, SCM_ARG2, __FUNCTION__, "string");
198 parser->parse_string (ly_scm2string (ly_code));
200 return SCM_UNSPECIFIED;
203 LY_DEFINE (ly_parser_set_note_names, "ly:parser-set-note-names",
204 2, 0, 0, (SCM parser, SCM names),
205 "Replace current note names in @var{parser}. "
206 "@var{names} is an alist of symbols. "
207 "This only has effect if the current mode is notes.")
209 Lily_parser *p = unsmob_lily_parser (parser);
210 SCM_ASSERT_TYPE (p, parser, SCM_ARG1, __FUNCTION__, "Lilypond parser");
212 if (p->lexer_->is_note_state ())
214 p->lexer_->pop_state ();
215 p->lexer_->push_note_state (alist_to_hashq (names));
218 return SCM_UNSPECIFIED;
221 LY_DEFINE (ly_parser_output_name, "ly:parser-output-name",
222 1, 0, 0, (SCM parser),
223 "Return the base name of the output file.")
225 Lily_parser *p = unsmob_lily_parser (parser);
226 SCM_ASSERT_TYPE (p, parser, SCM_ARG1, __FUNCTION__, "Lilypond parser");
228 return scm_makfrom0str (p->output_basename_.c_str ());