fontaliases: revise fonts.alias for UTF-8 to display

multi-language correctly.

cde/programs/fontaliases/linux/en_US.UTF-8/Makefile.am

@@ -3,3 +3,11 @@ MAINTAINERCLEANFILES = Makefile.in
 include ../../../localized/templates/English.am
 include ../../bdf/fonts.am
 
+noinst_PROGRAMS = mk_fonts_alias test_fonts_alias
+
+mk_fonts_alias_SOURCES = mk_fonts_alias.c
+test_fonts_alias_SOURCES = test_fonts_alias.c
+test_fonts_alias_LDADD = $(XTOOLLIB)
+
+fonts.alias: mk_fonts_alias
+	./$< > $@

cde/programs/fontaliases/linux/en_US.UTF-8/test_fonts_alias.c

@@ -0,0 +1,112 @@
+/*
+ * CDE - Common Desktop Environment
+ *
+ * (c) Copyright 1993-2012 The Open Group
+ * (c) Copyright 2012-2022 CDE Project contributors, see
+ * CONTRIBUTORS for details
+ *
+ * These libraries and programs are free software; you can
+ * redistribute them and/or modify them under the terms of the GNU
+ * Lesser General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * These libraries and programs are distributed in the hope that
+ * they will be useful, but WITHOUT ANY WARRANTY; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU Lesser General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with these libraries and programs; if not, write
+ * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
+ * Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <X11/Xlib.h>
+
+#define BUF_SIZE 1024
+
+int main(void) {
+  int ret = 0;
+  int line_num = 0;
+  int npaths;
+  char cwd[BUF_SIZE];
+  char *font_path_list[BUF_SIZE];
+  char **font_path_list_orig = NULL;
+  char *line = NULL;
+  size_t len = 0;
+  ssize_t line_len;
+
+  if (!getcwd(cwd, BUF_SIZE)) {
+    fprintf(stderr, "Cannot get current working directory.\n");
+    ret = -1;
+    goto done;
+  }
+
+  font_path_list[0] = cwd;
+
+  Display *display = XOpenDisplay(NULL);
+
+  if (display == NULL) {
+    fprintf(stderr, "Cannot open display.\n");
+    ret = -1;
+    goto done;
+  }
+
+  font_path_list_orig = XGetFontPath(display, &npaths);
+
+  for (int i = 0; i < npaths; ++i)
+    font_path_list[i + 1] = font_path_list_orig[i];
+
+  XSetFontPath(display, font_path_list, ++npaths);
+
+  while ((line_len = getline(&line, &len, stdin)) != -1) {
+    int i;
+    char *font_name = NULL;
+    size_t font_name_len = 0;
+
+    ++line_num;
+
+    for (i = 0; i < line_len; ++i) {
+      ++font_name_len;
+
+      if (!font_name && line[i] == '"') {
+        font_name = &line[i];
+        font_name_len = 0;
+      }
+      else if (font_name && line[i] == '"') break;
+    }
+
+    if (i >= line_len || line_len < 3) {
+      fprintf(stderr, "Corrupted file.\n");
+      ret = -1;
+      goto done;
+    }
+
+    *(++font_name + --font_name_len) = '\0';
+
+    XFontStruct *font_struct = XLoadQueryFont(display, font_name);
+
+    if (!font_struct) {
+      fprintf(stderr, "Bad alias: %d: %s\n", line_num, font_name);
+      ret = -1;
+    }
+
+    if (font_struct) XFreeFont(display, font_struct);
+  }
+
+done:
+  if (font_path_list_orig) {
+    XSetFontPath(display, font_path_list_orig, --npaths);
+    XFreeFontPath(font_path_list_orig);
+  }
+
+  if (line) free(line);
+  if (display) XCloseDisplay(display);
+
+  return ret;
+}