source file of the GNU LilyPond music typesetter
- (c) 1998--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 1998--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "output-def.hh"
#include "modified-font-metric.hh"
+static void
+replace_whitespace (string *str)
+{
+ vsize i = 0;
+ vsize n = str->size ();
+
+ while (i < n)
+ {
+ vsize char_len = 1;
+ char cur = (*str)[i];
+
+ // U+10000 - U+10FFFF
+ if ((cur & 0x11110000) == 0x11110000)
+ char_len = 4;
+ // U+0800 - U+FFFF
+ else if ((cur & 0x11100000) == 0x11100000)
+ char_len = 3;
+ // U+0080 - U+07FF
+ else if ((cur & 0x11000000) == 0x11000000)
+ char_len = 2;
+ else if (cur & 0x10000000)
+ programming_error ("invalid utf-8 string");
+ else
+ // avoid the locale-dependent isspace
+ if (cur == '\n' || cur == '\t' || cur == '\v')
+ (*str)[i] = ' ';
+
+ i += char_len;
+ }
+}
+
MAKE_SCHEME_CALLBACK (Text_interface, interpret_string, 3);
SCM
Text_interface::interpret_string (SCM layout_smob,
SCM props,
SCM markup)
{
- Output_def *layout = unsmob_output_def (layout_smob);
-
- SCM_ASSERT_TYPE (layout, layout_smob, SCM_ARG1,
- __FUNCTION__, "Layout definition");
- SCM_ASSERT_TYPE (scm_is_string (markup), markup, SCM_ARG3,
- __FUNCTION__, "string");
+ LY_ASSERT_SMOB (Output_def, layout_smob, 1);
+ LY_ASSERT_TYPE (scm_is_string, markup, 3);
string str = ly_scm2string (markup);
-
+ Output_def *layout = unsmob_output_def (layout_smob);
Font_metric *fm = select_encoded_font (layout, props);
- return fm->text_stencil (str).smobbed_copy ();
+
+ replace_whitespace (&str);
+ return fm->word_stencil (str).smobbed_copy ();
}
-MAKE_SCHEME_CALLBACK (Text_interface, interpret_markup, 3);
+MAKE_SCHEME_CALLBACK_WITH_OPTARGS (Text_interface, interpret_markup, 3, 0,
+ "Convert a text markup into a stencil."
+" Takes three arguments, @var{layout}, @var{props}, and @var{markup}.\n"
+"\n"
+"@var{layout} is a @code{\\layout} block; it may be obtained from a grob with"
+" @code{ly:grob-layout}. @var{props} is an alist chain, i.e. a list of"
+" alists. This is typically obtained with"
+" @code{(ly:grob-alist-chain (ly:layout-lookup layout 'text-font-defaults))}."
+" @var{markup} is the markup text to be processed.");
SCM
Text_interface::interpret_markup (SCM layout_smob, SCM props, SCM markup)
{
ly_symbol2scm ("markup-signature"))));
}
-ADD_INTERFACE (Text_interface, "text-interface",
- "A scheme markup text, see @usermanref{Text markup}.",
+bool
+Text_interface::is_markup_list (SCM x)
+{
+ SCM music_list_p = ly_lily_module_constant ("markup-list?");
+ return scm_is_true (scm_call_1 (music_list_p, x));
+}
+
+
+ADD_INTERFACE (Text_interface,
+ "A Scheme markup text, see @ruser{Formatting text} and"
+ " @ruser{New markup command definition}.\n"
+ "\n"
+ "There are two important commands:"
+ " @code{ly:text-interface::print}, which is a"
+ " grob callback, and"
+ " @code{ly:text-interface::interpret-markup}.",
+
+ /* properties */
"baseline-skip "
"text "
"word-space "