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authorOwen Taylor <otaylor@src.gnome.org>2000-01-13 04:12:07 +0000
committerOwen Taylor <otaylor@src.gnome.org>2000-01-13 04:12:07 +0000
commit282fb5fc9f9d01c4d933a6eb6bee6ae9f0d512c7 (patch)
tree0b19c69692a2fe52a1b33d5e27c97b26a64417e3 /pango/break.c
parent66ae87f9fc45f5f564acf5014e9bd1341d052958 (diff)
downloadpango-282fb5fc9f9d01c4d933a6eb6bee6ae9f0d512c7.tar.gz
Initial revision
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+/* Pango
+ * break.c:
+ *
+ * Copyright (C) 1999 Red Hat Software
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <pango.h>
+#include <unicode.h>
+#include "utils.h"
+
+/**
+ * pango_break:
+ * @text: the text to process
+ * @length: the length (in bytes) of @text
+ * @analysis: #PangoAnalysis structure from PangoItemize
+ * @attrs: an array to store character information in
+ *
+ * Determines possible line, word, and character breaks
+ * for a string of Unicode text.
+ */
+void pango_break (gchar *text,
+ gint length,
+ PangoAnalysis *analysis,
+ PangoLogAttr *attrs)
+{
+ /* Pseudo-implementation */
+
+ gchar *cur = text;
+ gchar *next;
+ gint i = 0;
+ GUChar4 wc;
+
+ while (*cur)
+ {
+ next = unicode_get_utf8 (cur, &wc);
+ if (!next)
+ return; /* FIXME: ERROR */
+ if (cur == next)
+ break;
+ if ((next - text) > length)
+ break;
+ cur = next;
+
+ attrs[i].is_white = (wc == ' ' || wc == '\t' || wc == '\n') ? 1 : 0;
+ attrs[i].is_break = (i > 0 && attrs[i-1].is_white) || attrs[i].is_white;
+ attrs[i].is_char_stop = 1;
+ attrs[i].is_word_stop = (i == 0) || attrs[i-1].is_white;
+
+ i++;
+ }
+}