Infrastructure changes for character set support. ustrtoa,

ustrfroma, utoa_dup and ufroma_dup now take a charset parameter, and
also have a variety of subtly distinct forms. Also, when a \cfg
directive is seen in the input file, the precise octet strings for
each parameter are kept in their original form as well as being
translated into Unicode, so that when they represent filenames they
can be used verbatim.

[originally from svn r4097]

1 files changed, 67 insertions, 0 deletions

diff --git a/misc.c b/misc.c
index 6f4ddd4..304cb1f 100644
--- a/misc.c
+++ b/misc.c
@@ -2,8 +2,13 @@
  * misc.c: miscellaneous useful items
  */
 
+#include <stdarg.h>
 #include "halibut.h"
 
+char *adv(char *s) {
+    return s + 1 + strlen(s);
+}
+
 struct stackTag {
     void **data;
     int sp;
@@ -479,3 +484,65 @@ void wrap_free(wrappedline *w) {
 	w = t;
     }
 }
+
+void cmdline_cfg_add(paragraph *cfg, char *string)
+{
+    wchar_t *ustring;
+    int upos, ulen, pos, len;
+
+    ulen = 0;
+    while (cfg->keyword[ulen])
+	ulen += 1 + ustrlen(cfg->keyword+ulen);
+    len = 0;
+    while (cfg->origkeyword[len])
+	len += 1 + strlen(cfg->origkeyword+len);
+
+    ustring = ufroma_dup(string, CS_FIXME);
+
+    upos = ulen;
+    ulen += 2 + ustrlen(ustring);
+    cfg->keyword = resize(cfg->keyword, ulen);
+    ustrcpy(cfg->keyword+upos, ustring);
+    cfg->keyword[ulen-1] = L'\0';
+
+    pos = len;
+    len += 2 + strlen(string);
+    cfg->origkeyword = resize(cfg->origkeyword, len);
+    strcpy(cfg->origkeyword+pos, string);
+    cfg->origkeyword[len-1] = '\0';
+
+    sfree(ustring);
+}
+
+paragraph *cmdline_cfg_new(void)
+{
+    paragraph *p;
+
+    p = mknew(paragraph);
+    memset(p, 0, sizeof(*p));
+    p->type = para_Config;
+    p->next = NULL;
+    p->fpos.filename = "<command line>";
+    p->fpos.line = p->fpos.col = -1;
+    p->keyword = ustrdup(L"\0");
+    p->origkeyword = dupstr("\0");
+
+    return p;
+}
+
+paragraph *cmdline_cfg_simple(char *string, ...)
+{
+    va_list ap;
+    char *s;
+    paragraph *p;
+
+    p = cmdline_cfg_new();
+    cmdline_cfg_add(p, string);
+
+    va_start(ap, string);
+    while ((s = va_arg(ap, char *)) != NULL)
+	cmdline_cfg_add(p, s);
+    va_end(ap);
+
+    return p;
+}