-#include <stdlib.h>
-#include <stream.h>
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+
+ Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+
+ 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 <http://www.gnu.org/licenses/>.
+*/
+
#include "warn.hh"
+#include <cstdlib>
+#include <cstdio>
+
+#include "international.hh"
+
+using namespace std;
+
+/** We have several different loglevels, each with its own message function(s):
+ ERROR: error, non_fatal_error, programming_error
+ WARN: warning
+ BASIC_PROGRESS: success/...
+ PROGRESS: progress_indication
+ INFO: message
+ DEBUG: debug
+ All these functions check whether the corresponding loglevel bit is set
+ and print the message only if that's the case
+*/
+
+/* Define the loglevel (default is INFO) */
+int loglevel = LOGLEVEL_INFO;
+
+bool
+is_loglevel (int level)
+{
+ // Check the bitmask containing the loglevel
+ return (loglevel & level);
+}
+
+void
+set_loglevel (int level)
+{
+ loglevel = level;
+ debug_output (_f ("Log level set to %d\n", loglevel));
+}
void
-error (String s)
+set_loglevel (string level)
{
- cerr << _ ("error: ") << s << '\n';
+ /* Convert the loglevel string to lower-case, so we allow
+ both upper- and lower-case loglevels */
+ std::transform (level.begin (), level.end (), level.begin (), ::tolower);
+
+ /* Compare just the first few characters, so the loglevels
+ can be abbreviated */
+ if (level.compare (0, 5, "debug") == 0) // debug
+ set_loglevel (LOGLEVEL_DEBUG);
+ else if (level.compare (0, 4, "info") == 0) // info
+ set_loglevel (LOGLEVEL_INFO);
+ else if (level.compare (0, 4, "prog") == 0) // progress
+ set_loglevel (LOGLEVEL_PROGRESS);
+ else if (level.compare (0, 5, "basic") == 0) // basic progress
+ set_loglevel (LOGLEVEL_BASIC);
+ else if (level.compare (0, 4, "warn") == 0) // warning
+ set_loglevel (LOGLEVEL_WARN);
+ else if (level.compare (0, 3, "err") == 0) // error
+ set_loglevel (LOGLEVEL_ERROR);
+ else if (level.compare (0, 4, "none") == 0) // none
+ set_loglevel (LOGLEVEL_NONE);
+ else
+ {
+ int l;
+ if (sscanf (level.c_str (), "%d", &l))
+ set_loglevel (l);
+ else
+ {
+ non_fatal_error (_f ("unknown log level `%s', using default (INFO)",
+ level));
+ set_loglevel (LOGLEVEL_INFO);
+ }
+ }
+}
+
+
+/**
+ * Helper functions: print_message_part (no newline prepended)
+ * print_message (always starts on a new line)
+ */
+
+/* Is output message at NEWLINE? */
+static bool message_newline = true;
+/* Display user information as a full message.
+ if newline is true, start the message on a new line.
+*/
+void
+print_message (int level, string location, string s, bool newline)
+{
+ /* Only print the message if the current loglevel allows it: */
+ if (!is_loglevel (level))
+ return;
+ if (newline && !message_newline)
+ fputc ('\n', stderr);
+
+ /* Test if all silly progress_indication ("\n") can be dropped now. */
+ if (s == "\n")
+ return;
+
+ if (!location.empty ())
+ s = location + ": " + s;
+ fputs (s.c_str (), stderr);
+ fflush (stderr);
+ if (s.length ())
+ message_newline = s[s.length () - 1] == '\n';
+}
+
+
+/** The actual output functions to be called in lilypond code.
+ * Sorted in descending order of importance (errors, warnings, progress, info,
+ * debug). Each prints a message on a separate line.
+ */
+
+/* Display a fatal error message. Also exits lilypond. */
+void
+error (string s, string location)
+{
+ print_message (LOG_ERROR, location, _f ("fatal error: %s", s) + "\n");
exit (1);
}
+/* Display a severe programming error message, but don't exit. */
void
-non_fatal_error (String s)
+programming_error (string s, string location)
{
- cerr << _ ("error: ") << s << '\n';
+ print_message (LOG_ERROR, location, _f ("programming error: %s", s) + "\n");
+ print_message (LOG_ERROR, location, _ ("continuing, cross fingers") + "\n");
}
+/* Display a non-fatal error message, don't exit. */
void
-warning (String m)
+non_fatal_error (string s, string location)
{
- cerr << _ ("warning: ") <<m <<endl;
+ print_message (LOG_ERROR, location, _f ("error: %s", s) + "\n");
+}
+
+/* Display a warning message. */
+void
+warning (string s, string location)
+{
+ print_message (LOG_WARN, location, _f ("warning: %s", s) + "\n");
+}
+/* Display a success message. */
+void
+successful (string s, string location)
+{
+ print_message (LOG_BASIC, location, _f ("success: %s", s) + "\n", true);
}
+/* Display information about the progress. */
void
-message (String m)
+progress_indication (string s, bool newline, string location)
{
- cerr << m<<endl;
+ print_message (LOG_PROGRESS, location, s, newline);
}
+/* Display a single info message. */
void
-programming_error (String s)
+message (string s, bool newline, string location)
{
- cerr << _("programming error: ") << s << _(" (Continuing; cross thumbs)") << '\n';
+ // Use the progress loglevel for all normal messages (including progress msg)
+ print_message (LOG_INFO, location, s, newline);
}
+/* Display a debug information, not necessarily on a new line. */
+void
+debug_output (string s, bool newline, string location)
+{
+ print_message (LOG_DEBUG, location, s, newline);
+}
projects / lilypond.git / blobdiff