2 lily-parser-scheme.cc -- implement Lily_parser bindings
4 source file of the GNU LilyPond music typesetter
6 (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
11 #include "file-name.hh"
12 #include "file-path.hh"
14 #include "lily-parser.hh"
17 #include "lily-lexer.hh"
18 #include "ly-module.hh"
19 #include "file-name-map.hh"
21 /* Do not append `!' suffix, since 1st argument is not modified. */
22 LY_DEFINE (ly_set_point_and_click, "ly:set-point-and-click",
27 warning (_f ("deprecated function called: %s", "ly:set-point-and-click"));
28 return SCM_UNSPECIFIED;
31 LY_DEFINE (ly_parse_file, "ly:parse-file",
33 "Parse a single @code{.ly} file. "
34 "Upon failure, throw @code{ly-file-failed} key.")
36 SCM_ASSERT_TYPE (scm_is_string (name), name, SCM_ARG1, __FUNCTION__, "string");
37 char const *file = scm_i_string_chars (name);
38 char const *extensions[] = {"ly", "", 0};
40 String file_name = global_path.find (file, extensions);
42 /* By default, use base name of input file for output file name,
43 write output to cwd; do not use root and directory parts of input
45 File_name out_file_name (file_name);
47 global_path.append (out_file_name.dir_);
49 out_file_name.ext_ = "";
50 out_file_name.root_ = "";
51 out_file_name.dir_ = "";
53 /* When running from gui, generate output in .ly source directory. */
54 if (output_name_global.is_empty ()
55 && scm_call_0 (ly_lily_module_constant ("running-from-gui?")) == SCM_BOOL_T)
60 output_name_global = f.to_string ();
63 if (!output_name_global.is_empty ())
65 /* Interpret --output=DIR to mean --output=DIR/BASE. */
66 if (is_dir (output_name_global))
69 getcwd (cwd, PATH_MAX);
71 if (output_name_global != cwd)
73 global_path.prepend (cwd);
74 message (_f ("Changing working directory to `%s'",
75 output_name_global.to_str0 ()));
76 chdir (output_name_global.to_str0 ());
78 output_name_global = "";
81 out_file_name = File_name (output_name_global);
85 if (!init_name_global.is_empty ())
86 init = init_name_global;
90 String out_file = out_file_name.to_string ();
92 if (init.length () && global_path.find (init).is_empty ())
94 warning (_f ("can't find init file: `%s'", init));
95 warning (_f ("(search path: `%s')",
96 global_path.to_string ().to_str0 ()));
100 if ((file_name != "-") && global_path.find (file_name).is_empty ())
102 warning (_f ("can't find file: `%s'", file_name));
103 scm_throw (ly_symbol2scm ("ly-file-failed"),
104 scm_list_1 (scm_makfrom0str (file_name.to_str0 ())));
109 sources.set_path (&global_path);
111 String mapped_fn = map_file_name (file_name);
112 message (_f ("Processing `%s'", mapped_fn.to_str0 ()));
113 progress_indication ("\n");
115 Lily_parser *parser = new Lily_parser (&sources);
117 parser->parse_file (init, file_name, out_file);
119 bool error = parser->error_level_;
120 parser->unprotect ();
123 /* TODO: pass renamed input file too. */
124 scm_throw (ly_symbol2scm ("ly-file-failed"),
125 scm_list_1 (scm_makfrom0str (file_name.to_str0 ())));
127 return SCM_UNSPECIFIED;
130 LY_DEFINE (ly_parse_string, "ly:parse-string",
131 1, 0, 0, (SCM ly_code),
132 "Parse the string LY_CODE. "
133 "Upon failure, throw @code{ly-file-failed} key.")
135 SCM_ASSERT_TYPE (scm_is_string (ly_code), ly_code, SCM_ARG1, __FUNCTION__, "string");
138 sources.set_path (&global_path);
139 Lily_parser *parser = new Lily_parser (&sources);
140 parser->parse_string (ly_scm2string (ly_code));
141 parser->unprotect ();
144 return SCM_UNSPECIFIED;
147 LY_DEFINE (ly_clone_parser, "ly:clone-parser",
148 1, 0, 0, (SCM parser_smob),
149 "Return a clone of PARSER_SMOB.")
151 Lily_parser *parser = unsmob_lily_parser (parser_smob);
152 Lily_parser *clone = new Lily_parser (*parser);
154 return clone->unprotect ();
157 LY_DEFINE (ly_parser_define, "ly:parser-define!",
158 3, 0, 0, (SCM parser_smob, SCM symbol, SCM val),
159 "Bind SYMBOL to VAL in PARSER_SMOB's module.")
161 Lily_parser *parser = unsmob_lily_parser (parser_smob);
162 SCM_ASSERT_TYPE (scm_is_symbol (symbol), symbol, SCM_ARG2, __FUNCTION__, "symbol");
163 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG2, __FUNCTION__, "parser");
165 parser->lexer_->set_identifier (scm_symbol_to_string (symbol), val);
166 return SCM_UNSPECIFIED;
169 LY_DEFINE (ly_parser_lookup, "ly:parser-lookup",
170 2, 0, 0, (SCM parser_smob, SCM symbol),
171 "Lookup @var{symbol} in @var{parser_smob}'s module. "
174 Lily_parser *parser = unsmob_lily_parser (parser_smob);
176 SCM_ASSERT_TYPE (scm_is_symbol (symbol), symbol, SCM_ARG2, __FUNCTION__, "symbol");
177 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG2, __FUNCTION__, "parser");
179 SCM val = parser->lexer_->lookup_identifier (ly_scm2string (scm_symbol_to_string (symbol)));
180 if (val != SCM_UNDEFINED)
186 LY_DEFINE (ly_parser_parse_string, "ly:parser-parse-string",
187 2, 0, 0, (SCM parser_smob, SCM ly_code),
188 "Parse the string LY_CODE with PARSER_SMOB."
189 "Upon failure, throw @code{ly-file-failed} key.")
191 Lily_parser *parser = unsmob_lily_parser (parser_smob);
193 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG1, __FUNCTION__, "parser");
194 SCM_ASSERT_TYPE (scm_is_string (ly_code), ly_code, SCM_ARG2, __FUNCTION__, "string");
196 parser->parse_string (ly_scm2string (ly_code));
198 return SCM_UNSPECIFIED;
201 LY_DEFINE (ly_parser_set_note_names, "ly:parser-set-note-names",
202 2, 0, 0, (SCM parser, SCM names),
203 "Replace current note names in @var{parser}. "
204 "@var{names} is an alist of symbols. "
205 "This only has effect if the current mode is notes.")
207 Lily_parser *p = unsmob_lily_parser (parser);
208 SCM_ASSERT_TYPE (p, parser, SCM_ARG1, __FUNCTION__, "Lilypond parser");
210 if (p->lexer_->is_note_state ())
212 p->lexer_->pop_state ();
213 p->lexer_->push_note_state (alist_to_hashq (names));
216 return SCM_UNSPECIFIED;
219 LY_DEFINE (ly_parser_output_name, "ly:parser-output-name",
220 1, 0, 0, (SCM parser),
221 "Return the base name of the output file.")
223 Lily_parser *p = unsmob_lily_parser (parser);
224 SCM_ASSERT_TYPE (p, parser, SCM_ARG1, __FUNCTION__, "Lilypond parser");
226 return scm_makfrom0str (p->output_basename_.to_str0 ());